Processing method, communication device, and storage medium

Abstract

By means of the technical solution of the present application, a terminal device determines the mapping of a synchronization signal block and the mapping of a random access occasion on the basis of downlink information, and a mapping mechanism for the synchronization signal block and the random access occasion is optimized, such that a network device can effectively distinguish a beam direction used by the terminal device that performs a random access.

Description

Processing method, communication device and storage medium Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a processing method, communication equipment and storage medium. Background Art

[0002] In the existing 5G NR (New Radio) technology, the random access process is a key step in supporting terminal devices to access the network.

[0003] During the process of conceiving and implementing this application, the inventors discovered that there are at least the following problems: when the network allows NES (Network Energy Saving) users and traditional users to coexist at the same time, it will face the challenges of random access resource allocation and management. In particular, when the random access resources of NES users and traditional users conflict, the existing mapping method of synchronization signal blocks (SSBs) and random access opportunities (ROs) cannot ensure that the mappings of NES users and traditional users do not interfere with each other, resulting in the network equipment being unable to effectively distinguish the beam direction used by the terminal device performing random access, thereby reducing resource utilization efficiency and / or increasing access delay.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Technical Solutions

[0005] The main purpose of this application is to provide a processing method, communication equipment and storage medium, which aims to optimize the mapping mechanism of synchronization signal blocks and random access opportunities, so that network equipment can effectively distinguish the beam direction used by terminal devices performing random access.

[0006] This application provides a processing method that can be applied to a terminal device (such as a mobile phone), comprising the following steps:

[0007] S2: Determine the mapping of synchronization signal blocks and random access opportunities based on downlink information.

[0008] Optionally, the method further includes:

[0009] Determining a random access opportunity associated with at least one synchronization signal block according to a mapping between the synchronization signal block and the random access opportunity;

[0010] The preamble is sent at a random access opportunity associated with at least one synchronization signal block.

[0011] Optionally, the method further comprises at least one of the following:

[0012] The downlink information includes at least one of a radio resource control message, a media access control message, a system message, and downlink control information;

[0013] The random access opportunity is the first random access opportunity and / or the second random access opportunity;

[0014] The random access opportunity is a valid random access opportunity.

[0015] Optionally, the mapping of synchronization signal blocks and random access opportunities includes at least one of the following:

[0016] When the first random access opportunity and the second random access opportunity do not overlap in the time domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0017] When the first random access opportunity and the second random access opportunity do not overlap in the frequency domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0018] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0019] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is exactly the same as the mapping of the synchronization signal block and the second random access opportunity;

[0020] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0021] When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0022] When the first random access opportunity and the second random access opportunity do not overlap in the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0023] Optionally, the method further comprises at least one of the following:

[0024] The format of the preamble transmitted at the first random access opportunity is the same as the format of the preamble transmitted at the second random access opportunity;

[0025] The format of the preamble transmitted at the first random access opportunity is independent of the format of the preamble transmitted at the second random access opportunity;

[0026] A first root sequence index used to generate the preamble transmitted on the first random access opportunity is the same as a second root sequence index used to generate the preamble transmitted on the second random access opportunity;

[0027] The element values ​​in the first root sequence index set used to generate the preamble transmitted on the first random access opportunity are completely different from the element values ​​in the second root sequence index set used to generate the preamble transmitted on the second random access opportunity;

[0028] The synchronization signal block index mapped to the first random access opportunity is exactly the same as the synchronization signal block index mapped to the second random access opportunity;

[0029] At least one synchronization signal block index mapped to the first random access opportunity is different from at least one synchronization signal block index mapped to the second random access opportunity.

[0030] Optionally, the method further comprises at least one of the following:

[0031] The first random access opportunity is located in the first random access resource;

[0032] The second random access opportunity is located in the second random access resource;

[0033] The first random access opportunity is applicable to four-step random access and / or two-step random access;

[0034] The first root sequence index value is the sum of the second root sequence index value and the first value;

[0035] The value of the first root sequence index is related to the format of the preamble and / or the length of the preamble;

[0036] The order of mapping synchronization signal blocks and random access opportunities is determined, including: first, according to the ascending order of the preamble code index within a random access opportunity; second, according to the ascending order of the frequency domain resource index of the random access opportunity multiplexed in the frequency domain; third, according to the ascending order of the time domain resource index of the random access opportunity multiplexed in the time domain within a random access time slot; fourth, according to the ascending order of the index of the random access time slot.

[0037] Optionally, the valid random access opportunity includes at least one of the following:

[0038] For frequency division duplex or supplementary uplink, all random access opportunities are valid;

[0039] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the random access opportunity in the random access slot is valid;

[0040] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access slot is within a UL symbol, the random access opportunity in the random access slot is valid;

[0041] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, the random access opportunity in the random access slot is valid.

[0042] Optionally, the valid random access opportunity further includes at least one of the following:

[0043] For frequency division duplex or supplemental uplink, if the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity is valid;

[0044] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, and the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity in the random access slot is valid;

[0045] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access slot is within a UL symbol, and the first random access opportunity is not a random access opportunity that satisfies the first condition, then the first random access opportunity in the random access slot is valid;

[0046] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, and the first random access opportunity is not a random access opportunity that meets the first condition, then the first random access opportunity in the random access slot is valid.

[0047] Optionally, the random access opportunity that meets the first condition includes at least one of the following:

[0048] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, all first random access opportunities in a random access slot that are located at the same symbol position as the first random access opportunity;

[0049] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0050] When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0051] a first random access opportunity that completely overlaps with the second random access opportunity in both the time domain and the frequency domain;

[0052] a first random access opportunity that completely overlaps with the second random access opportunity in the time domain but partially overlaps with the second random access opportunity in the frequency domain;

[0053] A first random access opportunity that completely overlaps with a second random access opportunity in the frequency domain but partially overlaps with the second random access opportunity in the time domain.

[0054] Optionally, step S2 includes at least one of the following:

[0055] Determining a mapping between a synchronization signal block and a first random access opportunity according to the downlink information;

[0056] Determine a mapping between a synchronization signal block and a second random access opportunity according to the downlink information;

[0057] Determine the number of synchronization signal blocks and the index of the synchronization signal block according to the downlink information;

[0058] Determine, according to the downlink information, a radio frame, a subframe, and / or a timeslot position where a first random access opportunity in the first random access resource is located;

[0059] Determine, according to the downlink information, a frequency domain starting RB position of a first random access opportunity in the first random access resource on the activated bandwidth;

[0060] determining, according to the downlink information, the number of random access opportunities for frequency domain multiplexing of the first random access opportunity in the first random access resource at one time instance;

[0061] Determine, according to the downlink information, a radio frame, a subframe, and a timeslot position of a second random access opportunity in the second random access resource;

[0062] Determine, according to the downlink information, a frequency domain starting RB position of a second random access opportunity in the second random access resource on the activated bandwidth;

[0063] The number of random access opportunities for frequency domain multiplexing of the second random access opportunity in the second random access resource at one time instance is determined according to the downlink information.

[0064] The present application also provides a processing method, which can be applied to a network device (such as a base station), comprising the steps of:

[0065] S1: Send downlink information so that the terminal device can determine the mapping of the synchronization signal block and the random access opportunity based on the downlink information.

[0066] Optionally, the method further includes: receiving a preamble code according to a mapping of a synchronization signal block and a random access opportunity.

[0067] Optionally, the method further comprises at least one of the following:

[0068] The downlink information includes at least one of a radio resource control message, a media access control message, a system message, and downlink control information;

[0069] The random access opportunity is the first random access opportunity and / or the second random access opportunity;

[0070] The random access opportunity is a valid random access opportunity.

[0071] Optionally, the mapping of synchronization signal blocks and random access opportunities includes at least one of the following:

[0072] When the first random access opportunity and the second random access opportunity do not overlap in the time domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0073] When the first random access opportunity and the second random access opportunity do not overlap in the frequency domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0074] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0075] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is exactly the same as the mapping of the synchronization signal block and the second random access opportunity;

[0076] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0077] When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0078] When the first random access opportunity and the second random access opportunity do not overlap in the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0079] Optionally, the method further comprises at least one of the following:

[0080] The format of the preamble transmitted at the first random access opportunity is the same as the format of the preamble transmitted at the second random access opportunity;

[0081] The format of the preamble transmitted at the first random access opportunity is independent of the format of the preamble transmitted at the second random access opportunity;

[0082] A first root sequence index used to generate the preamble transmitted on the first random access opportunity is the same as a second root sequence index used to generate the preamble transmitted on the second random access opportunity;

[0083] The element values ​​in the first root sequence index set used to generate the preamble transmitted on the first random access opportunity are completely different from the element values ​​in the second root sequence index set used to generate the preamble transmitted on the second random access opportunity;

[0084] The synchronization signal block index mapped to the first random access opportunity is exactly the same as the synchronization signal block index mapped to the second random access opportunity;

[0085] At least one synchronization signal block index mapped to the first random access opportunity is different from at least one synchronization signal block index mapped to the second random access opportunity.

[0086] Optionally, the method further comprises at least one of the following:

[0087] The first random access opportunity is located in the first random access resource;

[0088] The second random access opportunity is located in the second random access resource;

[0089] The first random access opportunity is applicable to four-step random access and / or two-step random access;

[0090] The first root sequence index value is the sum of the second root sequence index value and the first value;

[0091] The value of the first root sequence index is related to the format of the preamble and / or the length of the preamble;

[0092] Determining the order of mapping synchronization signal blocks and random access opportunities, including:

[0093] First, in ascending order of preamble index within a random access opportunity;

[0094] Second, in ascending order of frequency domain resource indexes of random access opportunities multiplexed in the frequency domain;

[0095] Third, in ascending order of time domain resource indexes of random access opportunities time domain multiplexed within a random access time slot;

[0096] Fourth, in the order of increasing random access slot index.

[0097] Optionally, the valid random access opportunity includes at least one of the following:

[0098] For frequency division duplex or supplementary uplink, all random access opportunities are valid;

[0099] For time division duplex, if the time division duplex uplink and downlink common configuration is not provided to the terminal equipment, and if the random access opportunity in a random access time slot does not precede the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the random access opportunity in the random access slot is valid;

[0100] For frequency division duplex, if a common configuration of time division duplex uplink and downlink is provided to the terminal equipment, and if the random access opportunity in a random access slot is within a UL symbol, the random access opportunity in the random access slot is valid;

[0101] For time division duplex, if the terminal equipment is provided with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access slot does not precede the synchronization signal block of the random access slot, the random access opportunity is at least N after the last synchronization signal block symbol of the random access slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, the random access opportunity in the random access slot is valid.

[0102] Optionally, the valid random access opportunity further includes at least one of the following:

[0103] For frequency division duplex or supplemental uplink, if the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity is valid;

[0104] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, and the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity in the random access slot is valid;

[0105] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access slot is within a UL symbol, and the first random access opportunity is not a random access opportunity that satisfies the first condition, then the first random access opportunity in the random access slot is valid;

[0106] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, and the first random access opportunity is not a random access opportunity that meets the first condition, then the first random access opportunity in the random access slot is valid.

[0107] Optionally, the random access opportunity that meets the first condition includes at least one of the following:

[0108] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, all first random access opportunities in a random access slot that are located at the same symbol position as the first random access opportunity;

[0109] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0110] When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0111] a first random access opportunity that completely overlaps with the second random access opportunity in both the time domain and the frequency domain;

[0112] a first random access opportunity that completely overlaps with the second random access opportunity in the time domain but partially overlaps with the second random access opportunity in the frequency domain;

[0113] A first random access opportunity that completely overlaps with a second random access opportunity in the frequency domain but partially overlaps with the second random access opportunity in the time domain.

[0114] Optionally, the terminal device determines, based on the downlink information, a mapping between a synchronization signal block and a random access opportunity, including at least one of the following:

[0115] The terminal device determines, according to the downlink information, a mapping between a synchronization signal block and a first random access opportunity;

[0116] The terminal device determines the mapping of the synchronization signal block and the second random access opportunity according to the downlink information;

[0117] The terminal device determines the number of synchronization signal blocks and the index of the synchronization signal block according to the downlink information;

[0118] The terminal device determines, according to the downlink information, a radio frame, a subframe and / or a time slot position where the first random access opportunity in the first random access resource is located;

[0119] The terminal device determines, according to the downlink information, a frequency domain starting RB position of a first random access opportunity in the first random access resource on the activation bandwidth;

[0120] The terminal device determines, according to the downlink information, the number of random access opportunities for frequency domain multiplexing of the first random access opportunity in the first random access resource at one time instance;

[0121] The terminal device determines, according to the downlink information, a radio frame, a subframe, and a time slot position where a second random access opportunity in the second random access resource is located;

[0122] The terminal device determines, according to the downlink information, a frequency domain starting RB position of a second random access opportunity in the second random access resource on the activated bandwidth;

[0123] The terminal device determines the number of random access opportunities for frequency domain multiplexing of the second random access opportunity in the second random access resource at a time instance based on the downlink information.

[0124] The present application also provides a processing device, comprising:

[0125] A determination module is used to determine the mapping of synchronization signal blocks and random access opportunities based on downlink information.

[0126] The present application also provides a processing device, comprising:

[0127] The sending module is used to send downlink information so that the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information.

[0128] The present application also provides a communication device, comprising: a memory, a processor, and a processing program stored in the memory and executable on the processor, wherein the processing program implements the steps of any of the above-described processing methods when executed by the processor.

[0129] The communication device in this application can be a terminal device (such as a mobile phone) or a network device (such as a base station). The specific reference needs to be clarified in the context.

[0130] The present application also provides a computer-readable storage medium, on which a processing program is stored. When the processing program is executed by a processor, the steps of any of the processing methods described above are implemented.

[0131] Through the technical solution of the present application, the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information, thereby optimizing the mapping mechanism of the synchronization signal block and the random access opportunity, and enabling the network device to effectively distinguish the beam direction used by the terminal device performing random access. BRIEF DESCRIPTION OF THE DRAWINGS

[0132] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0133] FIG1 is a schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of the present application;

[0134] FIG2 is a diagram of a communication network system architecture provided by an embodiment of the present application;

[0135] FIG3 is a schematic diagram of the hardware structure of a controller 140 provided in this application;

[0136] FIG4 is a schematic diagram of the hardware structure of a network node 150 provided in this application;

[0137] FIG5 is a schematic flow chart of a processing method according to the first embodiment of the present application;

[0138] FIG6 is a flow chart of a processing method according to a second embodiment of the present application;

[0139] 7 to 10 are schematic diagrams of scenarios shown in the third embodiment of the present application;

[0140] 11 to 14 are schematic diagrams of scenarios shown in the fourth embodiment of the present application;

[0141] FIG15 is a flow chart of a processing method according to a seventh embodiment of the present application;

[0142] FIG16 is a schematic diagram of the interaction flow between a network device and a terminal device according to a processing method according to a ninth embodiment of the present application;

[0143] FIG17 is a first structural diagram of a processing device provided in an embodiment of the present application;

[0144] FIG18 is a second structural diagram of a processing device provided in an embodiment of the present application;

[0145] FIG19 is a schematic diagram of the structure of the communication device provided in an embodiment of the present application.

[0146] The purpose of this application, its features, and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and the accompanying text are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of this application to those skilled in the art by reference to specific embodiments.

[0147] Implementation Methods of the Application

[0148] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0149] It should be noted that, in this document, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element, and / or, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.

[0150] It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the term "if," as used herein, may be interpreted as "upon," "when," or "in response to a determination." Furthermore, as used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms "comprising" and "including" indicate the presence of the recited features, steps, operations, elements, components, items, types, and / or groups, but do not preclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, types, and / or groups. The terms "or," "and / or," "including at least one of the following," etc., as used herein, may be interpreted as inclusive, meaning any one or any combination. For example, “comprising at least one of the following: A, B, C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”; and for another example, “A, B or C” or “A, B and / or C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”. An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some manner.

[0151] It should be understood that, although the various steps in the flowchart in the embodiment of the present application are shown in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence in the order indicated by the arrows. Unless clearly stated herein, the execution of these steps is not strictly limited in order, and they can be performed in other orders. Moreover, at least a portion of the steps in the figure may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and their execution order is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of other steps or sub-steps or stages of other steps.

[0152] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0153] It should be noted that in this article, step codes such as S1 and S2 are used for the purpose of expressing the corresponding content more clearly and concisely, and do not constitute a substantial restriction on the order. When implementing the step, those skilled in the art may execute S2 first and then S1, etc., but these should all be within the scope of protection of this application.

[0154] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0155] In the subsequent description, the use of suffixes such as "module", "component" or "unit" to represent elements is only for the purpose of facilitating the description of the present application and has no specific meaning. Therefore, "module", "component" or "unit" can be used interchangeably.

[0156] The communication device in this application can be a terminal device (such as a mobile phone) or a network device (such as a base station). The specific reference needs to be clarified based on the context.

[0157] The terminal device may be implemented in various forms. For example, the terminal device described in this application may include intelligent terminal devices such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, and other fixed terminal devices such as digital TVs and desktop computers.

[0158] The subsequent description will be made using a mobile terminal as an example. Those skilled in the art will understand that, in addition to components specifically used for mobile purposes, the configuration according to the embodiments of the present application can also be applied to fixed-type terminal devices.

[0159] Please refer to Figure 1, which is a schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of the present application. The mobile terminal 100 may include components such as an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an A / V (Audio / Video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111. Those skilled in the art will understand that the mobile terminal structure shown in Figure 1 does not limit the mobile terminal. The mobile terminal may include more or fewer components than shown, or may combine certain components, or arrange the components differently.

[0160] The following is a detailed introduction to the various components of the mobile terminal in conjunction with Figure 1:

[0161] The RF unit 101 can be used to send and receive information or receive signals during calls. Specifically, it receives downlink information from the base station and transmits it to the processor 110 for processing. It also transmits uplink data to the base station. Typically, the RF unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and / or other components. Furthermore, the RF unit 101 can communicate with the network and other devices via wireless communication. The above-mentioned wireless communications can use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution), 5G and 6G, etc.

[0162] WiFi is a short-range wireless transmission technology. A mobile terminal, through WiFi module 102, enables users to send and receive emails, browse web pages, and access streaming media, providing wireless broadband Internet access. Although FIG1 illustrates WiFi module 102, it is understood that it is not a required component of the mobile terminal and can be omitted as needed without altering the essence of the invention.

[0163] The audio output unit 103 can convert audio data received by the RF unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output it as sound when the mobile terminal 100 is in a call signal reception mode, a talk mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Furthermore, the audio output unit 103 can also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, or the like.

[0164] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042. The GPU 1041 processes image data of still images or videos captured by an image capture device (e.g., a camera) in video capture mode or image capture mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the GPU 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the RF unit 101 or the WiFi module 102. The microphone 1042 may receive sound (audio data) in operating modes such as a phone call mode, a recording mode, and a voice recognition mode, and may process such sound into audio data. In the phone call mode, the processed audio (voice) data may be converted into a format that can be transmitted to a mobile communication base station via the RF unit 101. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to eliminate (or suppress) noise or interference generated during the reception and transmission of audio signals.

[0165] The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. Optionally, the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 1061 and / or the backlight when the mobile terminal 100 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that recognize the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors that can be configured in the mobile phone, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., they will not be described here.

[0166] The display unit 106 is used to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0167] The user input unit 107 can be used to receive input digital or character information and generate key signal input related to user settings and function control of the mobile terminal. Optionally, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also known as a touch screen, can collect user touch operations on or near it (such as operations performed by the user using a finger, stylus, or any other suitable object or accessory on or near the touch panel 1071) and drive corresponding connected devices according to a pre-set program. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Optionally, the touch detection device detects the user's touch direction and detects the signal generated by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device and converts it into touch point coordinates, which are then sent to the processor 110. It can also receive and execute commands sent by the processor 110. And / or, the touch panel 1071 can be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may further include other input devices 1072. Optionally, the other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, power keys, etc.), a trackball, a mouse, a joystick, etc., and the specifics are not limited here.

[0168] Optionally, the touch panel 1071 may overlay the display panel 1061. When the touch panel 1071 detects a touch operation on or near it, it transmits the information to the processor 110 to determine the type of touch event. The processor 110 then provides a corresponding visual output on the display panel 1061 based on the type of touch event. Although in FIG1 , the touch panel 1071 and the display panel 1061 are shown as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, which is not limited to this specific embodiment.

[0169] The interface unit 108 serves as an interface through which at least one external device can be connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, etc. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and an external device.

[0170] Memory 109 can be used to store software programs and various data. Memory 109 may primarily include a program storage area and a data storage area. Optionally, the program storage area may store an operating system and at least one application required for a function (such as a sound playback function or an image playback function); the data storage area may store data generated based on the use of the mobile phone (such as audio data, a phone book, etc.). Furthermore, / or, memory 109 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0171] Processor 110 is the control center of the mobile terminal, connecting all components of the mobile terminal using various interfaces and circuits. By running or executing software programs and / or modules stored in memory 109 and accessing data stored in memory 109, it executes various functions of the mobile terminal and processes data, thereby providing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, processor 110 may integrate an application processor and a modem processor. Optionally, the application processor primarily handles the operating system, user interface, and application programs, while the modem processor primarily handles wireless communications. It is understood that the modem processor may not be integrated into processor 110.

[0172] The mobile terminal 100 may also include a power supply 111 (such as a battery) for supplying power to various components. Preferably, the power supply 111 may be logically connected to the processor 110 through a power management system, thereby managing functions such as charging, discharging, and power consumption through the power management system.

[0173] Although not shown in FIG. 1 , the mobile terminal 100 may further include a Bluetooth module, etc., which will not be described in detail here.

[0174] To facilitate understanding of the embodiments of the present application, the communication network system on which the mobile terminal of the present application is based is described below.

[0175] Please refer to Figure 2, which is a communication network system architecture diagram provided in an embodiment of the present application. The communication network system is an NR (New Radio) system of universal mobile communication technology. The NR system includes UE (User Equipment) 201, E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, EPC (Evolved Packet Core) 203 and the operator's IP service 204, which are connected in sequence.

[0176] Optionally, UE201 may be the above-mentioned terminal device 100, which will not be described in detail here.

[0177] E-UTRAN 202 includes eNodeB 2021 and other eNodeBs 2022 . Optionally, eNodeB 2021 may be connected to other eNodeBs 2022 via a backhaul (eg, an X2 interface). eNodeB 2021 is connected to EPC 203 , and eNodeB 2021 may provide access from UE 201 to EPC 203 .

[0178] EPC 203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving Gate Way) 2034, a PGW (PDN Gate Way) 2035, and a PCRF (Policy and Charging Rules Function) 2036. MME 2031 is optionally a control node that processes signaling between UE 201 and EPC 203, providing bearer and connection management. HSS 2032 provides registers for managing functions such as the Home Location Register (not shown) and stores user-specific information such as service features and data rates. All user data can be sent through SGW2034, PGW2035 can provide IP address allocation and other functions for UE 201, PCRF2036 is the policy and charging control policy decision point for service data flow and IP bearer resources, and it selects and provides available policy and charging control decisions for the policy and charging execution function unit (not shown in the figure).

[0179] The IP service 204 may include the Internet, an intranet, an IMS (IP Multimedia Subsystem), or other IP services.

[0180] Although the above introduction takes the LTE system as an example, those skilled in the art should know that this application is not only applicable to the LTE system, but can also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, 5G and future new network systems (such as 6G), etc., which are not limited here.

[0181] FIG3 is a schematic diagram of the hardware structure of a controller 140 provided in this application. The controller 140 includes a memory 1401 and a processor 1402. The memory 1401 is used to store program instructions, and the processor 1402 is used to call the program instructions in the memory 1401 to execute the steps performed by the controller in the first embodiment of the above method. The implementation principles and beneficial effects are similar and will not be repeated here.

[0182] Optionally, the controller further includes a communication interface 1403, which can be connected to the processor 1402 via a bus 1404. The processor 1402 can control the communication interface 1403 to implement the receiving and sending functions of the controller 140.

[0183] Figure 4 is a schematic diagram of the hardware structure of a network node 150 provided in this application. Network node 150 includes: a memory 1501 and a processor 1502. Memory 1501 is used to store program instructions, and processor 1502 is used to call the program instructions in memory 1501 to execute the steps performed by the first node in the first embodiment of the above method. The implementation principles and beneficial effects are similar and will not be repeated here.

[0184] Optionally, the controller further includes a communication interface 1503, which can be connected to the processor 1502 via a bus 1504. The processor 1502 can control the communication interface 1503 to implement the receiving and sending functions of the network node 150.

[0185] The integrated modules implemented in the form of software function modules can be stored in a computer-readable storage medium. The software function modules stored in a storage medium include a number of instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute some of the steps of the methods of various embodiments of the present application.

[0186] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a storage medium or transmitted from one storage medium to another storage medium. For example, the computer instructions can be transmitted from a website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive solid state disk, SSD), etc.

[0187] Based on the above-mentioned mobile terminal hardware structure and communication network system, various embodiments of the present application are proposed.

[0188] Technical terms involved in this embodiment:

[0189] NR: New Radio, New Air;

[0190] NES: Network Energy Saving, network energy saving;

[0191] SSB: SS / PBCH Block, synchronization signal block;

[0192] RO: PRACH Occasion, random access opportunity;

[0193] RRC: Radio Resource Control.

[0194] First embodiment

[0195] 5 , which is a flow chart of a processing method according to a first embodiment of the present application, the processing method according to the embodiment of the present application can be applied to a terminal device (such as a mobile phone), and includes the following steps:

[0196] S2: The terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information.

[0197] This embodiment mainly targets scenarios where the network allows NES (network energy saving) users and traditional users to coexist, and optimizes the mapping mechanism between synchronization signal blocks (SSBs) and random access opportunities (ROs), so that network devices can effectively distinguish the beam directions used by terminal devices performing random access, thereby improving resource utilization efficiency and / or reducing access delays. In particular, when the random access resources of NES users and traditional users conflict, it can ensure that the mappings of NES users and traditional users do not interfere with each other, and / or ensure that the network devices can accurately determine the beam direction used by the terminal initiating random access based on the received preamble code opportunity. Through this method, the present application can improve the efficiency of random access, reduce access conflicts, optimize network performance, and improve the quality of service for all users.

[0198] In this embodiment, the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information.

[0199] Optionally, the downlink information includes at least one of a radio resource control message, a media access control message, a system message and downlink control information.

[0200] Optionally, the random access resources for random access by NES users are called first random access resources, and the random access resources for random access by traditional users are called second random access resources.

[0201] Optionally, when the first random access resource is not configured or when both the first random access resource and the second random access resource are configured, the NES user may also use the second random access resource for random access.

[0202] Optionally, the random access opportunity is the first random access opportunity and / or the second random access opportunity.

[0203] Optionally, the first random access opportunity is located in the first random access resource.

[0204] Optionally, the second random access opportunity is located in a second random access resource.

[0205] Optionally, the first random access opportunity is applicable to four-step random access and / or two-step random access.

[0206] Optionally, the second random access opportunity is applicable to four-step random access and / or two-step random access.

[0207] Optionally, the first random access opportunity and / or the second random access opportunity are both valid random access opportunities.

[0208] Optionally, the terminal device determines, based on the downlink information, a mapping between a synchronization signal block and a random access opportunity, including at least one of the following:

[0209] Determine the number of synchronization signal blocks and the index of the synchronization signal block according to the downlink information;

[0210] Determine, according to the downlink information, a radio frame, a subframe, and a timeslot position of a first random access opportunity in the first random access resource;

[0211] Determine, according to the downlink information, a frequency domain starting RB (Resource Block) position of a first random access opportunity in the first random access resource on the activated bandwidth;

[0212] determining, according to the downlink information, the number of random access opportunities for frequency domain multiplexing of the first random access opportunity in the first random access resource at one time instance;

[0213] Determining the number of synchronization signal blocks associated with a first random access opportunity according to the downlink information;

[0214] The mapping of the synchronization signal block and the first random access opportunity is determined based on at least one of the number of synchronization signal blocks, the index of the synchronization signal block, the number of first random access opportunities in the time domain within a period of a random access opportunity, the number of first random access opportunities multiplexed in the frequency domain at a time instance, and the number of synchronization signal blocks associated with a first random access opportunity.

[0215] Optionally, the number of synchronization signal blocks and the index of the synchronization signal block are determined according to ssb-PositionsInBurst in system message 1 (SIB1) or serving cell configuration (ServingCellConfigCommon).

[0216] Optionally, the number of synchronization signal blocks and the index of the synchronization signal block are determined based on at least one of a wireless resource control message, a media access control message, a system message and a downlink control information.

[0217] Optionally, the radio frame, subframe and time slot position of the first random access opportunity in the first random access resource is determined according to the radio resource control message prach-ConfigurationIndex-R19 and / or msgA-PRACH-ConfigurationIndex-R19.

[0218] Optionally, the radio frame, subframe and time slot position of the first random access opportunity in the first random access resource is determined according to at least one of a radio resource control message, a media access control message, a system message and downlink control information.

[0219] Optionally, the frequency domain starting RB position of the first random access opportunity in the first random access resource on the activated bandwidth is determined according to the radio resource control message msg1-FrequencyStart-R19 and / or msgA-RO-FrequencyStart-R19.

[0220] Optionally, the number of ROs frequency-domain multiplexed at one time instance for the first random access opportunity in the first random access resource is determined according to the radio resource control message msg1-FDM-R19 and / or msgA-RO-FDM-R19.

[0221] Optionally, the number of synchronization signal blocks associated with a first random access opportunity and the number of preamble codes associated with each synchronization signal block are determined according to the radio resource control message ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19 and / or msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19.

[0222] Optionally, the number of synchronization signal blocks associated with a first random access opportunity and the number of preamble codes associated with each synchronization signal block are determined based on at least one of a wireless resource control message, a media access control message, a system message and a downlink control information.

[0223] Optionally, the terminal device determines, based on the downlink information, a mapping between a synchronization signal block and a random access opportunity, including at least one of the following:

[0224] Determine the number of synchronization signal blocks and the index of the synchronization signal block according to the downlink information;

[0225] Determine, according to the downlink information, a radio frame, a subframe, and a timeslot position of a second random access opportunity in the second random access resource;

[0226] Determine, according to the downlink information, a frequency domain starting RB position of a second random access opportunity in the second random access resource on the activated bandwidth;

[0227] determining, according to the downlink information, the number of random access opportunities for frequency domain multiplexing of the second random access opportunity in the second random access resource at one time instance;

[0228] Determining the number of synchronization signal blocks associated with a second random access opportunity according to the downlink information;

[0229] The mapping of the synchronization signal block and the second random access opportunity is determined according to the number of synchronization signal blocks, the index of the synchronization signal block, the number of second random access opportunities in the time domain within a period of a random access opportunity, and the number of second random access opportunities multiplexed in the frequency domain at a time instance.

[0230] Optionally, the number of synchronization signal blocks and the index of the synchronization signal block are determined according to ssb-PositionsInBurst in system message 1 (SIB1) or serving cell configuration (ServingCellConfigCommon).

[0231] Optionally, the radio frame, subframe and time slot position of the second random access opportunity in the second random access resource is determined according to the radio resource control message prach-ConfigurationIndex and / or msgA-PRACH-ConfigurationIndex.

[0232] Optionally, the frequency domain starting RB position of the second random access opportunity in the second random access resource on the activated bandwidth is determined according to the radio resource control message msg1-FrequencyStart and / or msgA-RO-FrequencyStart.

[0233] Optionally, the number of ROs frequency-domain multiplexed in a second random access opportunity in the second random access resource at one time instance is determined according to the radio resource control message msg1-FDM and / or msgA-RO-FDM.

[0234] Optionally, the number of synchronization signal blocks associated with a second random access opportunity and the number of preamble codes associated with each synchronization signal block are determined according to the radio resource control message ssb-perRACH-OccasionAndCB-PreamblesPerSSB and / or msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB.

[0235] Optionally, the method further includes:

[0236] Determining a random access opportunity associated with at least one synchronization signal block according to a mapping between the synchronization signal block and the random access opportunity;

[0237] The preamble is sent at a random access opportunity associated with at least one synchronization signal block.

[0238] Optionally, a random access opportunity associated with at least one synchronization signal block is determined based on a mapping between the synchronization signal block and the first random access opportunity, and then a preamble code is sent at the first random access opportunity associated with at least one synchronization signal block.

[0239] Optionally, a random access opportunity associated with at least one synchronization signal block is determined based on the mapping of the synchronization signal block and the second random access opportunity, and then a preamble code is sent at the second random access opportunity associated with at least one synchronization signal block.

[0240] Optionally, the mapping of synchronization signal blocks and random access opportunities includes at least one of the following:

[0241] When the first random access opportunity and the second random access opportunity do not overlap in the time domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0242] When the first random access opportunity and the second random access opportunity do not overlap in the frequency domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0243] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0244] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is exactly the same as the mapping of the synchronization signal block and the second random access opportunity;

[0245] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0246] When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0247] When the first random access opportunity and the second random access opportunity do not overlap in the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0248] The first random access opportunity and the second random access opportunity refer to a valid first random access opportunity and a valid second random access opportunity, respectively.

[0249] Optionally, the first configuration parameter set includes at least one of ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19, prach-ConfigurationIndex-R19, msgA-PRACH-ConfigurationIndex-R19, msg1-FrequencyStart-R19, msgA-RO-FrequencyStart-R19, msg1-FDM-R19, and msgA-RO-FDM-R19.

[0250] Optionally, the second configuration parameter set includes at least one of ssb-perRACH-OccasionAndCB-PreamblesPerSSB, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB, prach-ConfigurationIndex, msgA-PRACH-ConfigurationIndex, msg1-FrequencyStart, msgA-RO-FrequencyStart, msg1-FDM, and msgA-RO-FDM.

[0251] Optionally, the mapping of the synchronization signal block and the first random access opportunity and the mapping of the synchronization signal block and the second random access opportunity are independent of each other, which means that the first configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the first random access opportunity and the second configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the second random access opportunity are independently configured.

[0252] Optionally, for the 4-step random access process, the first configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19 for mapping the synchronization signal block and the first random access opportunity and the second configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB for mapping the synchronization signal block and the second random access opportunity may be the same or different.

[0253] Optionally, for the 2-step random access process, the first configuration parameter msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19 for mapping the synchronization signal block and the first random access opportunity and the second configuration parameter msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB for mapping the synchronization signal block and the second random access opportunity may be the same or different.

[0254] Optionally, the mapping of the synchronization signal block and the first random access opportunity is exactly the same as the mapping of the synchronization signal block and the second random access opportunity, which means that at least one first configuration parameter in the first configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the first random access opportunity is the same as at least one second configuration parameter in the second configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the second random access opportunity.

[0255] Optionally, for the 4-step random access process, the first configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19 for mapping the synchronization signal block and the first random access opportunity is exactly the same as the second configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB for mapping the synchronization signal block and the second random access opportunity.

[0256] Optionally, for the 2-step random access process, the first configuration parameter msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19 for mapping the synchronization signal block and the first random access opportunity is exactly the same as the second configuration parameter msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB for mapping the synchronization signal block and the second random access opportunity.

[0257] Optionally, the mapping of the synchronization signal block and the first random access opportunity refers to the mapping of the synchronization signal block and the valid first random access opportunity.

[0258] Optionally, the mapping of the synchronization signal block and the second random access opportunity refers to the mapping of the synchronization signal block and the valid second random access opportunity.

[0259] Optionally, the order of mapping synchronization signal blocks and random access opportunities includes:

[0260] First, in ascending order of preamble index within a random access opportunity;

[0261] Second, in ascending order of frequency domain resource indexes of random access opportunities multiplexed in the frequency domain;

[0262] Third, in ascending order of time domain resource indexes of random access opportunities time domain multiplexed within a random access time slot;

[0263] Fourth, in the order of increasing random access slot index.

[0264] Optionally, the order of mapping the synchronization signal blocks and the random access opportunities refers to the order of mapping the synchronization signal blocks and the valid random access opportunities.

[0265] Optionally, the order of mapping the synchronization signal block and the valid first random access opportunity includes:

[0266] First, according to the increasing order of preamble index within a first random access opportunity;

[0267] Second, in ascending order of the frequency domain resource index of the first random access opportunity multiplexed in the frequency domain;

[0268] Third, according to the increasing order of the time domain resource index of the first random access opportunity time domain multiplexing within a random access time slot;

[0269] Fourth, in the order of increasing random access slot index.

[0270] Optionally, the terminal device determines an order of mapping the synchronization signal blocks and the valid second random access opportunities, including:

[0271] First, according to the increasing order of preamble index within a second random access opportunity;

[0272] Second, in ascending order of frequency domain resource indexes of second random access opportunities multiplexed in the frequency domain;

[0273] Third, according to the increasing order of the time domain resource index of the second random access opportunity time domain multiplexing within a random access time slot;

[0274] Fourth, in the order of increasing random access slot index.

[0275] Optionally, the valid random access opportunity includes at least one of the following:

[0276] For frequency division duplex or supplementary uplink, all random access opportunities are valid;

[0277] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the random access opportunity in the random access slot is valid;

[0278] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access slot is within a UL symbol, the random access opportunity in the random access slot is valid;

[0279] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, the random access opportunity in the random access slot is valid.

[0280] Optionally, the valid second random access opportunity includes at least one of the following:

[0281] For frequency division duplex or supplementary uplink, all second random access opportunities are valid;

[0282] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the second random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the second random access opportunity in the random access slot is valid;

[0283] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access slot is within a UL symbol, the second random access opportunity in the random access slot is valid;

[0284] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the second random access opportunity is at least N times after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the second random access opportunitygap symbols later, the second random access opportunity in the random access slot is valid.

[0285] Optionally, the valid first random access opportunity includes at least one of the following:

[0286] For frequency division duplex or supplementary uplink, all first random access opportunities are valid;

[0287] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the first random access opportunity in the random access slot is valid;

[0288] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access slot is within a UL symbol, then the first random access opportunity in the random access slot is valid;

[0289] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the first random access opportunity gap symbols later, the first random access opportunity in the random access slot is valid.

[0290] Optionally, the valid first random access opportunity further includes at least one of the following:

[0291] For frequency division duplex or supplemental uplink, if the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity is valid;

[0292] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, and the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity in the random access slot is valid;

[0293] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access slot is within a UL symbol, and the first random access opportunity is not a random access opportunity that satisfies the first condition, then the first random access opportunity in the random access slot is valid;

[0294] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, and the first random access opportunity is not a random access opportunity that meets the first condition, then the first random access opportunity in the random access slot is valid.

[0295] Optionally, the random access opportunity that meets the first condition includes at least one of the following:

[0296] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, all first random access opportunities in a random access slot that are located at the same symbol position as the first random access opportunity;

[0297] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0298] When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0299] a first random access opportunity that completely overlaps with the second random access opportunity in both the time domain and the frequency domain;

[0300] a first random access opportunity that completely overlaps with the second random access opportunity in the time domain but partially overlaps with the second random access opportunity in the frequency domain;

[0301] A first random access opportunity that completely overlaps with a second random access opportunity in the frequency domain but partially overlaps with the second random access opportunity in the time domain.

[0302] Optionally, the random access opportunity that meets the first condition is an invalid first random access opportunity.

[0303] Through the technical solution of this embodiment, the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information, thereby optimizing the mapping mechanism of the synchronization signal block and the random access opportunity, and enabling the network device to effectively distinguish the beam direction used by the terminal device performing random access, especially when the random access resources of the NES user and the traditional user conflict, it can ensure that the mapping of the NES user and the traditional user do not interfere with each other, and / or ensure that the network device can accurately determine the beam direction used by the terminal initiating random access based on the received preamble code opportunity, thereby improving the efficiency of random access, reducing access conflicts, optimizing network performance, and improving the service quality of all users.

[0304] Second embodiment

[0305] 6 , which is a flow chart of a processing method according to a second embodiment of the present application,

[0306] Based on the above-mentioned first embodiment of the present application, a second embodiment of the present application is proposed. This embodiment mainly describes a processing method for sending a preamble code according to mapping.

[0307] This embodiment mainly targets scenarios where the network allows NES (network energy saving) users and traditional users to coexist, and optimizes the mapping mechanism between synchronization signal blocks (SSBs) and random access opportunities (ROs), so that network devices can effectively distinguish the beam directions used by terminal devices performing random access, thereby improving resource utilization efficiency and / or reducing access delays. In particular, when the random access resources of NES users and traditional users conflict, it can ensure that the mappings of NES users and traditional users do not interfere with each other, and / or ensure that the network devices can accurately determine the beam direction used by the terminal initiating random access based on the received preamble code opportunity. Through this method, the present application can improve the efficiency of random access, reduce access conflicts, optimize network performance, and improve the quality of service for all users.

[0308] In this embodiment, the method further includes:

[0309] S3: The terminal device determines a random access opportunity associated with at least one synchronization signal block based on the mapping between the synchronization signal block and the random access opportunity, and sends a preamble code at the random access opportunity associated with at least one synchronization signal block.

[0310] Optionally, the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information, and determines the random access opportunity associated with at least one synchronization signal block according to the mapping of the synchronization signal block and the random access opportunity; and then sends a preamble code at the random access opportunity associated with at least one synchronization signal block.

[0311] Optionally, the downlink information includes at least one of a radio resource control message, a media access control message, a system message and downlink control information.

[0312] Optionally, the random access resources for random access by NES users are referred to as first random access resources, and the random access resources for random access by traditional users are referred to as second random access resources.

[0313] Optionally, when the first random access resource is not configured or when both the first random access resource and the second random access resource are configured, the NES user may also use the second random access resource for random access.

[0314] Optionally, the random access opportunity is the first random access opportunity and / or the second random access opportunity.

[0315] Optionally, the random access opportunity is a valid random access opportunity.

[0316] Optionally, the terminal device determines the mapping of the synchronization signal block and the first random access opportunity based on the downlink information, and determines the first random access opportunity associated with at least one synchronization signal block according to the mapping, and then sends a preamble code at the first random access opportunity associated with at least one synchronization signal block.

[0317] Optionally, the terminal device determines the mapping of the synchronization signal block and the second random access opportunity based on the downlink information, and determines the second random access opportunity associated with at least one synchronization signal block according to the mapping, and then sends a preamble code at the second random access opportunity associated with at least one synchronization signal block.

[0318] Optionally, the method further comprises at least one of the following:

[0319] The format of the preamble transmitted at the first random access opportunity is the same as the format of the preamble transmitted at the second random access opportunity;

[0320] The format of the preamble transmitted at the first random access opportunity is independent of the format of the preamble transmitted at the second random access opportunity;

[0321] A first root sequence index used to generate the preamble transmitted on the first random access opportunity is the same as a second root sequence index used to generate the preamble transmitted on the second random access opportunity;

[0322] The element values ​​in the first root sequence index set used to generate the preamble transmitted on the first random access opportunity are completely different from the element values ​​in the second root sequence index set used to generate the preamble transmitted on the second random access opportunity;

[0323] The synchronization signal block index mapped to the first random access opportunity is exactly the same as the synchronization signal block index mapped to the second random access opportunity;

[0324] At least one synchronization signal block index mapped to the first random access opportunity is different from at least one synchronization signal block index mapped to the second random access opportunity.

[0325] Optionally, the element values ​​in the first root sequence index set used to generate the preamble transmitted at the first random access opportunity are completely different from the element values ​​in the second root sequence index set used to generate the preamble transmitted at the second random access opportunity, which means that the intersection of the first root sequence index set and the second root sequence index set is 0. For example, assuming that the first root sequence index obtained from the RRC message is u1, and the number of root sequence indexes required to generate 64 preambles at the first random access opportunity is 3, then the first root sequence index set used to generate the preamble transmitted at the first random access opportunity is {u1, u1+1, u1+2}. assuming that the second root sequence index obtained from the RRC message is u2, and the number of root sequence indexes required to generate 64 preambles at the second random access opportunity is 2, then the second root sequence index set used to generate the preamble transmitted at the second random access opportunity is {u2, u2+1}. The intersection of {u1, u1+1, u1+2} and {u2, u2+1} is 0.

[0326] Optionally, the number of elements in the first root sequence index set used to generate the preamble transmitted at the first random access opportunity and the number of elements in the second root sequence index set used to generate the preamble transmitted at the second random access opportunity may be the same or different.

[0327] Optionally, the method further comprises at least one of the following:

[0328] The first random access opportunity is located in the first random access resource;

[0329] The second random access opportunity is located in the second random access resource;

[0330] The first random access opportunity is applicable to four-step random access and / or two-step random access;

[0331] The first root sequence index value is the sum of the second root sequence index value and the first value;

[0332] The value of the first root sequence index is related to the format of the preamble and / or the length of the preamble.

[0333] Optionally, the first root sequence index value being the sum of the second root sequence index value and the first value means: assuming that the first root sequence index u1 used to generate the preamble transmitted on the first random access opportunity is u2, and the second root sequence index u2 used to generate the preamble transmitted on the second random access opportunity is u1, then u1 = u2 + delta. Delta may be a preset value or a value related to the number of terminals or terminal distribution.

[0334] Optionally, the value of the first root sequence index is related to the format of the preamble and / or the length of the preamble and includes at least one of the following:

[0335] A value of the first root sequence index used to generate the preamble transmitted at the first random access opportunity is related to the format of the preamble and / or the length of the preamble;

[0336] When the format of the preamble is preamble format 0, preamble format 1, preamble format 2, or preamble format 3, the value of the first root sequence index belongs to the set {0, 1, ..., 837};

[0337] When the preamble length is 839, the value of the first root sequence index belongs to the set {0, 1, ..., 837};

[0338] When the preamble format is preamble format A1, preamble format A2, preamble format A3, preamble format B1, preamble format B2, preamble format B3, preamble format B4, preamble format C0, or preamble format C2, and the preamble length is 139, the value of the first root sequence index belongs to the set {0, 1, ..., 137};

[0339] When the preamble format is preamble format A1, preamble format A2, preamble format A3, preamble format B1, preamble format B2, preamble format B3, preamble format B4, preamble format C0, or preamble format C2, and the preamble length is 571, the value of the first root sequence index belongs to the set {0, 1, ..., 569};

[0340] When the preamble format is preamble format A1, preamble format A2, preamble format A3, preamble format B1, preamble format B2, preamble format B3, preamble format B4, preamble format C0, or preamble format C2, and the preamble length is 1151, the value of the first root sequence index belongs to the set {0, 1, ..., 1149}.

[0341] Through the technical solution of this embodiment, the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information, and sends the preamble code at the random access opportunity according to the mapping of the synchronization signal block and the random access opportunity, thereby optimizing the mapping mechanism of the synchronization signal block and the random access opportunity, and enabling the network device to effectively distinguish the beam direction used by the terminal device performing random access, thereby improving the efficiency of random access, reducing access conflicts, optimizing network performance, and improving the service quality of all users.

[0342] Third embodiment

[0343] Based on any of the above embodiments of the present application, a third embodiment of the present application is proposed. This embodiment mainly describes a processing method for mapping synchronization signal blocks and random access opportunities.

[0344] This embodiment mainly targets scenarios where the network allows NES (network energy saving) users and traditional users to coexist, and optimizes the mapping mechanism between synchronization signal blocks (SSBs) and random access opportunities (ROs), so that network devices can effectively distinguish the beam directions used by terminal devices performing random access, thereby improving resource utilization efficiency and / or reducing access delays. In particular, when the random access resources of NES users and traditional users conflict, it can ensure that the mappings of NES users and traditional users do not interfere with each other, and / or ensure that the network devices can accurately determine the beam direction used by the terminal initiating random access based on the received preamble code opportunity.

[0345] Optionally, the random access resources for random access by NES users are referred to as first random access resources, and the random access resources for random access by traditional users are referred to as second random access resources.

[0346] Optionally, when the first random access resource is not configured or when both the first random access resource and the second random access resource are configured, the NES user may also use the second random access resource for random access.

[0347] Optionally, the mapping of the synchronization signal block and the random access opportunity is determined based on the downlink information.

[0348] Optionally, the random access opportunity is the first random access opportunity and / or the second random access opportunity.

[0349] Optionally, the first random access opportunity is located in the first random access resource.

[0350] Optionally, the second random access opportunity is located in a second random access resource.

[0351] Optionally, the first random access opportunity is applicable to four-step random access and / or two-step random access.

[0352] Optionally, the random access opportunity is a valid random access opportunity.

[0353] Optionally, when the first random access opportunity and the second random access opportunity do not overlap in the time domain, but completely or partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity. Specifically, see Figures 7 and 8.

[0354] Optionally, as shown in FIG7 , the first random access opportunity and the second random access opportunity do not overlap in the time domain, but completely overlap in the frequency domain.

[0355] Optionally, as shown in FIG8 , the first random access opportunity and the second random access opportunity do not overlap in the time domain, but partially overlap in the frequency domain.

[0356] Optionally, when the first random access opportunity and the second random access opportunity do not overlap in the frequency domain, but completely or partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity. Specifically, see Figures 9 and 10.

[0357] Optionally, the first random access opportunity and the second random access opportunity do not overlap in the frequency domain, including: at least one first random access opportunity in a random access time slot that is located at the same symbol position as the first random access opportunity, and at least one second random access opportunity in a random access time slot that is located at the same symbol position as the second random access opportunity, and do not overlap in the frequency domain.

[0358] Optionally, as shown in FIG9 , the first random access opportunity and the second random access opportunity do not overlap in the frequency domain, but completely overlap in the time domain.

[0359] Optionally, as shown in Figure 10, the first random access opportunity and the second random access opportunity do not overlap in the frequency domain, but partially overlap in the time domain. For example, the symbol index occupied by the time domain of the first random access opportunity is {4, 5}, and the symbol index occupied by the time domain of the second random access opportunity is {5, 6}.

[0360] Optionally, the mapping of the synchronization signal block and the first random access opportunity and the mapping of the synchronization signal block and the second random access opportunity are independent of each other, which means that the first configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the first random access opportunity and the second configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the second random access opportunity are independently configured.

[0361] Optionally, the first configuration parameter set includes at least one of ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19, prach-ConfigurationIndex-R19, msgA-PRACH-ConfigurationIndex-R19, msg1-FrequencyStart-R19, msgA-RO-FrequencyStart-R19, msg1-FDM-R19, and msgA-RO-FDM-R19.

[0362] Optionally, the second configuration parameter set includes at least one of ssb-perRACH-OccasionAndCB-PreamblesPerSSB, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB, prach-ConfigurationIndex, msgA-PRACH-ConfigurationIndex, msg1-FrequencyStart, msgA-RO-FrequencyStart, msg1-FDM, and msgA-RO-FDM.

[0363] Optionally, ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19, ssb-perRACH-OccasionAndCB-PreamblesPerSSB, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19 and / or msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB are used to determine the number of valid first random access opportunities or second random access opportunities associated with a synchronization signal block.

[0364] Optionally, the number of synchronization signal blocks associated with a valid first random access opportunity determined by ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19 and / or msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19 is a value among {8, 4, 2, 1, 1 / 2, 1 / 4, 1 / 8, 1 / 16}.

[0365] Optionally, prach-ConfigurationIndex-R19, msgA-PRACH-ConfigurationIndex-R19, prach-ConfigurationIndex and / or msgA-PRACH-ConfigurationIndex are used to determine the radio frame, subframe and time slot position of the first random access opportunity or the second random access opportunity.

[0366] Optionally, msg1-FrequencyStart-R19, msgA-RO-FrequencyStart-R19, msg1-FrequencyStart and / or msgA-RO-FrequencyStart are used to determine the frequency domain starting RB position of the first random access opportunity or the second random access opportunity on the activated bandwidth.

[0367] Optionally, msg1-FDM-R19, msgA-RO-FDM-R19, msg1-FDM and / or msgA-RO-FDM are used to determine the number of ROs multiplexed in the frequency domain at a time instance in the first random access opportunity or the second random access opportunity.

[0368] Optionally, when the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity, at least one first configuration parameter in the first configuration parameter set is the same as at least one second configuration parameter in the second configuration parameter set.

[0369] Optionally, when the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity, at least one first configuration parameter in the first configuration parameter set is different from at least one second configuration parameter in the second configuration parameter set.

[0370] Optionally, for example, for a 4-step random access process, the first configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19 for mapping the synchronization signal block and the first random access opportunity and the second configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB for mapping the synchronization signal block and the second random access opportunity may be the same or different.

[0371] Optionally, for example, for a 2-step random access process, the first configuration parameter msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19 for mapping the synchronization signal block and the first random access opportunity and the second configuration parameter msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB for mapping the synchronization signal block and the second random access opportunity may be the same or different.

[0372] Optionally, when the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity, at least one of the following is included:

[0373] The format of the preamble transmitted at the first random access opportunity is independent of the format of the preamble transmitted at the second random access opportunity;

[0374] The synchronization signal block index mapped to the first random access opportunity and the synchronization signal block index mapped to the second random access opportunity are independent of each other;

[0375] A first root sequence index used to generate the preamble transmitted on the first random access opportunity and a second root sequence index used to generate the preamble transmitted on the second random access opportunity are independent of each other;

[0376] The number of synchronization signal blocks mapped on the first random access opportunity and the number of synchronization signal blocks mapped on the second random access opportunity are independent of each other.

[0377] Optionally, the format of the preamble code transmitted at the first random access opportunity and the format of the preamble code transmitted at the second random access opportunity are independent of each other, including: the format of the preamble code transmitted at the first random access opportunity and the format of the preamble code transmitted at the second random access opportunity are the same as or different.

[0378] Optionally, the synchronization signal block index mapped to the first random access opportunity and the synchronization signal block index mapped to the second random access opportunity are independent of each other, including: the first root sequence index used to generate the preamble code transmitted at the first random access opportunity is the same as or different from the second root sequence index used to generate the preamble code transmitted at the second random access opportunity.

[0379] Optionally, the first root sequence index used to generate the preamble code transmitted at the first random access opportunity and the second root sequence index used to generate the preamble code transmitted at the second random access opportunity being independent of each other include: the first root sequence index used to generate the preamble code transmitted at the first random access opportunity and the second root sequence index used to generate the preamble code transmitted at the second random access opportunity are the same as or different.

[0380] Optionally, the number of synchronization signal blocks mapped on the first random access opportunity and the number of synchronization signal blocks mapped on the second random access opportunity are independent of each other, including: the number of synchronization signal blocks mapped to the first random access opportunity obtained according to the downlink information is the same as or different from the number of synchronization signal blocks mapped to the second random access opportunity obtained according to the downlink information.

[0381] Optionally, the number X of synchronization signal blocks mapped to the second random access opportunity is determined according to the ssb-PositionsInBurst in the system message 1 (SIB1) or the serving cell configuration (ServingCellConfigCommon), and the number Y of synchronization signal blocks mapped to the first random access opportunity is determined according to the ssb-PositionsInBurst-R19 in the system message 1 (SIB1) or the serving cell configuration (ServingCellConfigCommon). Then X may be equal to Y, or X may not be equal to Y.

[0382] Optionally, when the first random access opportunity and the second random access opportunity do not overlap in the time domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the frequency domain, the first random access opportunity and the second random access opportunity that completely or partially overlap in the frequency domain are both valid random access opportunities, and the mapping of the synchronization signal block and the overlapping first random access opportunity is independent of the mapping of the synchronization signal block and the overlapping second random access opportunity.

[0383] Optionally, taking Figure 7 as an example, when the first random access opportunity and the second random access opportunity do not overlap in the time domain, but completely overlap in the frequency domain, the first random access opportunity and the second random access opportunity that completely overlap in the frequency domain are both valid random access opportunities. For example, in Figure 7, there are six groups of random access opportunities, of which the first and sixth groups of random access opportunities are second random access opportunities, and the second to fifth groups of random access opportunities are first random access opportunities. Although the first and sixth groups of random access opportunities do not overlap with the second to fifth groups of random access opportunities in the time domain but completely overlap in the frequency domain, if the second random access opportunities of the first and sixth groups meet the conditions for a valid second random access opportunity, then the second random access opportunities of the first and sixth groups are valid second random access opportunities. Similarly, if the first random access opportunities of the second to fifth groups meet the conditions for a valid first random access opportunity, then the first random access opportunities of the second to fifth groups are valid first random access opportunities.

[0384] Optionally, taking Figure 7 as an example, when the first random access opportunity and the second random access opportunity do not overlap in the time domain, but the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, the mapping of the synchronization signal block and the overlapping first random access opportunity is independent of the mapping of the synchronization signal block and the overlapping second random access opportunity. That is, the first configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the first random access opportunity is independently configured from the second configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the second random access opportunity. Optionally, at least one first configuration parameter in the first configuration parameter set is different from at least one second configuration parameter in the second configuration parameter set. For example, the first configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19 in the first configuration parameter set and the second configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB in the second configuration parameter set have different values. For example, the number of synchronization signal blocks associated with the valid first random access opportunity determined by the first configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19 is 2, and the number of synchronization signal blocks associated with the valid first random access opportunity determined by the second configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB is 1.

[0385] Optionally, when the first random access opportunity and the second random access opportunity do not overlap in the frequency domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the time domain, the first random access opportunity and the second random access opportunity that completely or partially overlap in the time domain are both valid random access opportunities, and the mapping of the synchronization signal block and the overlapping first random access opportunity is independent of the mapping of the synchronization signal block and the overlapping second random access opportunity.

[0386] Optionally, taking Figure 9 as an example, when the first random access opportunity and the second random access opportunity do not overlap in the frequency domain but completely overlap in the time domain, both the first random access opportunity and the second random access opportunity that completely overlap in the time domain are valid random access opportunities. For example, in Figure 9, there are two groups of second random access opportunities and five groups of first random access opportunities. Although the first group of second random access opportunities and the first group of first random access opportunities do not overlap in the frequency domain but completely overlap in the time domain, if the first group of second random access opportunities and the first group of first random access opportunities meet the conditions of a valid second random access opportunity and a valid first random access opportunity, respectively, then the first group of second random access opportunities is a valid second random access opportunity, and the first group of first random access opportunities is a valid first random access opportunity. Similarly, if the second group of second random access opportunities and the fifth group of first random access opportunities meet the conditions of a valid second random access opportunity and a valid first random access opportunity, respectively, then the second group of second random access opportunities is a valid second random access opportunity, and the fifth group of first random access opportunities is a valid first random access opportunity.

[0387] Optionally, taking Figure 9 as an example, when the first random access opportunity and the second random access opportunity do not overlap in the frequency domain, but the first random access opportunity and the second random access opportunity completely overlap in the time domain, the mapping of the synchronization signal block and the overlapping first random access opportunity is independent of the mapping of the synchronization signal block and the overlapping second random access opportunity. That is, the first configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the first random access opportunity is independently configured from the second configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the second random access opportunity. Optionally, at least one first configuration parameter in the first configuration parameter set is different from at least one second configuration parameter in the second configuration parameter set. For example, the first configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19 in the first configuration parameter set and the second configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB in the second configuration parameter set have different values. For example, the number of synchronization signal blocks associated with the valid first random access opportunity determined by the first configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19 is 2, and the number of synchronization signal blocks associated with the valid first random access opportunity determined by the second configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB is 1.

[0388] Optionally, the order of mapping synchronization signal blocks and random access opportunities includes:

[0389] First, in ascending order of preamble index within a random access opportunity;

[0390] Secondly, in ascending order of frequency domain resource indexes of random access opportunities multiplexed in the frequency domain;

[0391] Again, in the order of increasing time domain resource index of random access opportunities of time domain multiplexing within a random access time slot

[0392] Finally, in ascending order of random access slot index.

[0393] Optionally, the order of mapping the synchronization signal blocks and the random access opportunities refers to the order of mapping the synchronization signal blocks and the valid random access opportunities.

[0394] Optionally, determining an order of mapping synchronization signal blocks and valid first random access opportunities includes:

[0395] First, according to the increasing order of preamble index within a first random access opportunity;

[0396] Second, in ascending order of the frequency domain resource index of the first random access opportunity multiplexed in the frequency domain;

[0397] Third, according to the increasing order of the time domain resource index of the first random access opportunity time domain multiplexing within a random access time slot;

[0398] Fourth, in the order of increasing random access slot index.

[0399] Optionally, the order of mapping the synchronization signal block and the valid second random access opportunity includes:

[0400] First, according to the increasing order of preamble index within a second random access opportunity;

[0401] Second, in ascending order of frequency domain resource indexes of second random access opportunities multiplexed in the frequency domain;

[0402] Third, according to the increasing order of the time domain resource index of the second random access opportunity time domain multiplexing within a random access time slot;

[0403] Fourth, in the order of increasing random access slot index.

[0404] Optionally, the number of synchronization signal blocks and the index of the synchronization signal block are determined according to ssb-PositionsInBurst in system message 1 (SIB1) or serving cell configuration (ServingCellConfigCommon).

[0405] Optionally, the valid random access opportunity includes at least one of the following:

[0406] For frequency division duplex or supplementary uplink, all random access opportunities are valid;

[0407] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. `a` symbols later, the random access opportunity in the random access slot is valid;

[0408] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access slot is within a UL symbol, the random access opportunity in the random access slot is valid;

[0409] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. `a` symbols and at least N of the last downlink symbols of the random access opportunity `a` symbols later, the random access opportunity in the random access slot is valid.

[0410] Optionally, the valid second random access opportunity includes at least one of the following:

[0411] For frequency division duplex or supplementary uplink, all second random access opportunities are valid;

[0412] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the second random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. `a` symbols later, the second random access opportunity in the random access slot is valid;

[0413] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access slot is within a UL symbol, the second random access opportunity in the random access slot is valid;

[0414] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the second random access opportunity is at least N times after the last synchronization signal block symbol of the random access time slot. `a` symbols and at least N of the last downlink symbols of the second random access opportunity `a` symbols later, the second random access opportunity in the random access slot is valid.

[0415] Optionally, the valid first random access opportunity includes at least one of the following:

[0416] For frequency division duplex or supplementary uplink, all first random access opportunities are valid;

[0417] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. `a` symbols later, the first random access opportunity in the random access slot is valid;

[0418] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access slot is within a UL symbol, then the first random access opportunity in the random access slot is valid;

[0419] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. `a` symbols and at least N of the last downlink symbols of the first random access opportunity `a` symbols later, the first random access opportunity in the random access slot is valid.

[0420] Among them, N gap The value of is related to the subcarrier spacing of the preamble code and satisfies Table 1.

[0421] Optionally, for preamble format B4, N gap =0.

[0422] Table 1: N corresponding to different preamble subcarrier spacing gap The value of

[0423] Through the technical solution of this embodiment, the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information, thereby optimizing the mapping mechanism of the synchronization signal block and the random access opportunity, and enabling the network device to effectively distinguish the beam direction used by the terminal device performing random access.

[0424] Fourth embodiment

[0425] Based on any of the above embodiments of the present application, a fourth embodiment of the present application is proposed. This embodiment mainly describes a processing method for mapping synchronization signal blocks and random access opportunities.

[0426] This embodiment mainly targets scenarios where the network allows NES (network energy saving) users and traditional users to coexist, and optimizes the mapping mechanism between synchronization signal blocks (SSBs) and random access opportunities (ROs), so that network devices can effectively distinguish the beam directions used by terminal devices performing random access, thereby improving resource utilization efficiency and / or reducing access delays. In particular, when the random access resources of NES users and traditional users conflict, it can ensure that the mappings of NES users and traditional users do not interfere with each other, and / or ensure that the network devices can accurately determine the beam direction used by the terminal initiating random access based on the received preamble code opportunity.

[0427] Optionally, the random access resources for random access by NES users are referred to as first random access resources, and the random access resources for random access by traditional users are referred to as second random access resources.

[0428] Optionally, when the first random access resource is not configured or when both the first random access resource and the second random access resource are configured, the NES user may also use the second random access resource for random access.

[0429] Optionally, the mapping of the synchronization signal block and the random access opportunity is determined based on the downlink information.

[0430] Optionally, the random access opportunity is the first random access opportunity and / or the second random access opportunity.

[0431] Optionally, the first random access opportunity is located in the first random access resource.

[0432] Optionally, the second random access opportunity is located in a second random access resource.

[0433] Optionally, the first random access opportunity is applicable to four-step random access and / or two-step random access.

[0434] Optionally, the random access opportunity is a valid random access opportunity.

[0435] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0436] Optionally, FIG11 includes a scenario in which the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain.

[0437] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, all first random access opportunities located at the same symbol position as the first random access opportunity in a random access time slot are invalid first random access opportunities, and the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0438] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, all first random access opportunities in a random access slot that are located at the same symbol position as the first random access opportunity are invalid first random access opportunities. Assuming there are four groups of first random access opportunities in a PRACH cycle, and the third group of first random access opportunities completely overlaps with a group of second random access opportunities in both the time domain and the frequency domain, then all first random access opportunities that are located at the same symbol position as the third group of first random access opportunities are invalid first random access opportunities. That is, the two first random access opportunities located at the same symbol position in the third group of first random access opportunities are not used for synchronization signal block mapping, but the group of second random access opportunities that overlaps with the third group of first random access opportunities can still be used for synchronization signal block mapping. Assuming the number of synchronization signal blocks is 6, and the synchronization signal block indexes are 1 to 6, then the mapping of synchronization signal blocks and first random access opportunities only occurs in the first, second, and fourth groups of first random access opportunities; and the mapping of synchronization signal blocks and second random access opportunities still proceeds normally. Assuming that the number of synchronization signal blocks associated with a valid first random access opportunity is 1, and the number of synchronization signal blocks associated with a valid second random access opportunity is also 1, the mapping of the synchronization signal block and the first random access opportunity and the mapping of the synchronization signal block and the second random access opportunity are specifically shown in Figure 12.

[0439] Optionally, as shown in FIG12 , when the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the synchronization signal block is mapped only at the valid first random access opportunity and / or the valid second random access opportunity.

[0440] Optionally, as shown in FIG12 , the two first random access opportunities in the third group of first random access opportunities located at the same symbol position are both invalid first random access opportunities.

[0441] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in both the time and frequency domains, the first random access opportunity that completely overlaps with the second random access opportunity in both the time and frequency domains is deemed an invalid first random access opportunity. For example, if a group of first random access opportunities has two first random access opportunities located at the same symbol position, denoted as RO#4 and RO#5, and a group of second random access opportunities has one first random access opportunity located at the same symbol position, denoted as RO#0. If only RO#4 and RO#0 completely overlap in both the time and frequency domains, and RO#5 and RO#0 do not overlap in both the time and frequency domains, then only the first random access opportunity RO#4 is deemed an invalid first random access opportunity, and the first random access opportunity RO#5 remains a valid first random access opportunity.

[0442] Optionally, the valid first random access opportunity includes at least one of the following:

[0443] For frequency division duplex or supplemental uplink, if the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity is valid;

[0444] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, and the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity in the random access slot is valid;

[0445] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access slot is within a UL symbol, and the first random access opportunity is not a random access opportunity that satisfies the first condition, then the first random access opportunity in the random access slot is valid;

[0446] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, and the first random access opportunity is not a random access opportunity that meets the first condition, then the first random access opportunity in the random access slot is valid.

[0447] Optionally, the random access opportunity that meets the first condition includes at least one of the following:

[0448] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, all first random access opportunities in a random access slot that are located at the same symbol position as the first random access opportunity;

[0449] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0450] When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0451] a first random access opportunity that completely overlaps with the second random access opportunity in both the time domain and the frequency domain;

[0452] a first random access opportunity that completely overlaps with the second random access opportunity in the time domain but partially overlaps with the second random access opportunity in the frequency domain;

[0453] A first random access opportunity that completely overlaps with a second random access opportunity in the frequency domain but partially overlaps with the second random access opportunity in the time domain.

[0454] Optionally, the random access opportunity that meets the first condition is an invalid first random access opportunity.

[0455] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the overlapping first random access opportunity and the second random access opportunity are both valid random access opportunities, but the element values ​​in the first root sequence index set used to generate the preamble code transmitted at the first random access opportunity are completely different from the element values ​​in the second root sequence index set used to generate the preamble code transmitted at the second random access opportunity, and the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0456] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the overlapping first random access opportunity and the second random access opportunity are both valid random access opportunities. Assume that there are 3 groups of first random access opportunities in one PRACH cycle, and the second group of first random access opportunities completely overlaps with a group of second random access opportunities in both the time domain and the frequency domain, then the second group of first random access opportunities and the group of second random access opportunities are both valid random access opportunities. Assume that the number of synchronization signal blocks associated with a valid first random access opportunity is 2, the number of synchronization signal blocks associated with a valid second random access opportunity is 1, the number of synchronization signal blocks is 6, and the indexes of the synchronization signal blocks are 1 to 6. If the two random access opportunities of the second group of first random access opportunities are denoted as RO#3 and RO#4 respectively, then the synchronization signal block indexes associated with the first random access RO#3 are SSB#5 and SSB#6; and since one round of synchronization signal block mapping has been completed, the number of synchronization signal blocks associated with RO#4 is 0. If the two second random access opportunities of a group of second random access opportunities that completely overlap with the two first random access opportunities of the second group of first random access opportunities in both the time domain and the frequency domain are respectively denoted as RO#0 and RO#1, then the synchronization signal block index associated with the second random access RO#0 is SSB#0, and the synchronization signal block index associated with the second random access RO#1 is SSB#1. The mapping of the synchronization signal block and the first random access opportunity and the mapping of the synchronization signal block and the second random access opportunity are specifically shown in Figure 13.

[0457] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, and the overlapping first random access opportunity and the second random access opportunity are both valid random access opportunities, the element values ​​in the first root sequence index set used to generate the preamble transmitted at the first random access opportunity are completely different from the element values ​​in the second root sequence index set used to generate the preamble transmitted at the second random access opportunity. Optionally, assuming that the first root sequence index used to generate the preamble transmitted at the first random access opportunity RO#3 is u1, and the number of root sequence indexes required to generate 64 preambles at the first random access opportunity is 3, then the first root sequence index set used to generate the preamble transmitted at the first random access opportunity is {u1, u1+1, u1+2}. assuming that the second root sequence index used to generate the preamble transmitted at the second random access opportunity RO#0 is u2, and the number of root sequence indexes required to generate 64 preambles at the second random access opportunity is 2, then the second root sequence index set used to generate the preamble transmitted at the second random access opportunity is {u2, u2+1}. Optionally, the intersection of {u1, u1+1, u1+2} and {u2, u2+1} is 0.

[0458] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain and the overlapping first random access opportunity and the second random access opportunity are both valid random access opportunities, the first root sequence index value used to generate the preamble code transmitted on the first random access opportunity can be the sum of the second root sequence index value used to generate the preamble code transmitted on the second random access opportunity and the first value.

[0459] Optionally, the first root sequence index value is the sum of the second root sequence index value and the first value, which means: assuming that the first root sequence index u1 used to generate the preamble transmitted on the first random access opportunity is u2, and the second root sequence index u2 used to generate the preamble transmitted on the second random access opportunity is u1, then u1 = u2 + delta. Optionally, delta can be a preset value or a value related to the number of terminals or terminal distribution.

[0460] Optionally, the valid random access opportunity includes at least one of the following:

[0461] For frequency division duplex or supplementary uplink, all random access opportunities are valid;

[0462] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the random access opportunity in the random access slot is valid;

[0463] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access slot is within a UL symbol, the random access opportunity in the random access slot is valid;

[0464] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, the random access opportunity in the random access slot is valid.

[0465] Optionally, the valid first random access opportunity includes at least one of the following:

[0466] For frequency division duplex or supplementary uplink, all first random access opportunities are valid;

[0467] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the first random access opportunity in the random access slot is valid;

[0468] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access slot is within a UL symbol, then the first random access opportunity in the random access slot is valid;

[0469] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the first random access opportunity gap symbols later, the first random access opportunity in the random access slot is valid.

[0470] Optionally, the valid second random access opportunity includes at least one of the following:

[0471] For frequency division duplex or supplementary uplink, all second random access opportunities are valid;

[0472] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the second random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the second random access opportunity in the random access slot is valid;

[0473] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access slot is within a UL symbol, the second random access opportunity in the random access slot is valid;

[0474] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the second random access opportunity is at least N times after the last synchronization signal block symbol of the random access time slot. gapsymbols and at least N of the last downlink symbols of the second random access opportunity gap symbols later, the second random access opportunity in the random access slot is valid.

[0475] Optionally, the mapping of the synchronization signal block and the first random access opportunity and the mapping of the synchronization signal block and the second random access opportunity are independent of each other, which means that the first configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the first random access opportunity and the second configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the second random access opportunity are independently configured.

[0476] Optionally, the first configuration parameter set includes at least one of ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19, prach-ConfigurationIndex-R19, msgA-PRACH-ConfigurationIndex-R19, msg1-FrequencyStart-R19, msgA-RO-FrequencyStart-R19, msg1-FDM-R19, and msgA-RO-FDM-R19.

[0477] Optionally, the second configuration parameter set includes at least one of ssb-perRACH-OccasionAndCB-PreamblesPerSSB, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB, prach-ConfigurationIndex, msgA-PRACH-ConfigurationIndex, msg1-FrequencyStart, msgA-RO-FrequencyStart, msg1-FDM, and msgA-RO-FDM.

[0478] Optionally, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity and further includes:

[0479] The format of the preamble transmitted at the first random access opportunity and the format of the preamble transmitted at the second random access opportunity are independent of each other, that is, the format of the preamble transmitted at the first random access opportunity and the format of the preamble transmitted at the second random access opportunity may be the same or different.

[0480] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the overlapping first random access opportunity and the second random access opportunity are both valid random access opportunities, but the element values ​​in the first root sequence index set used to generate the preamble code transmitted at the first random access opportunity are exactly the same as the element values ​​in the second root sequence index set used to generate the preamble code transmitted at the second random access opportunity, and the mapping of the synchronization signal block and the first random access opportunity is also exactly the same as the mapping of the synchronization signal block and the second random access opportunity.

[0481] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the overlapping first random access opportunity and the second random access opportunity are both valid random access opportunities. Assume that there are four groups of first random access opportunities within a PRACH cycle, and the two first random access opportunities of the third group of first random access opportunities completely overlap with the two second random access opportunities of a group of second random access opportunities in both the time domain and the frequency domain, then the third group of first random access opportunities and the group of second random access opportunities are both valid random access opportunities. Assume that the number of synchronization signal blocks associated with a valid first random access opportunity and the number of synchronization signal blocks associated with a valid second random access opportunity are the same and both are 1, the number of synchronization signal blocks is 6, and the synchronization signal block indexes are 1 to 6. If the first and second random access opportunities of the third group of first random access opportunities are denoted as RO#4 and RO#5, respectively, then the synchronization signal block index associated with the first random access opportunity RO#4 is SSB#5, and the synchronization signal block index associated with the first random access opportunity RO#5 is SSB#6. If the two second random access opportunities of a group of second random access opportunities that completely overlap with the two first random access opportunities of the third group of first random access opportunities in both the time domain and the frequency domain are respectively denoted as RO#0 and RO#1, then the synchronization signal block index associated with RO#0 is SSB#1, and the synchronization signal block index associated with RO#1 is SSB#2. The mapping of the synchronization signal block and the first random access opportunity and the mapping of the synchronization signal block and the second random access opportunity are specifically shown in Figure 14.

[0482] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, and both the overlapping first random access opportunity and the second random access opportunity are valid random access opportunities, the values ​​of the elements in the first root sequence index set used to generate the preamble transmitted on the first random access opportunity are exactly the same as the values ​​of the elements in the second root sequence index set used to generate the preamble transmitted on the second random access opportunity. Optionally, the first root sequence index is u1, the second root sequence index is u2, and u1 = u2. Optionally, the same group of preambles can be grouped to distinguish whether the random access opportunity is used as the first random access opportunity or the second random access opportunity, as well as the index of the synchronization signal block associated with the random access opportunity.

[0483] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain and the overlapping first random access opportunity and the second random access opportunity are both valid random access opportunities, the mapping of the synchronization signal block and the first random access opportunity is exactly the same as the mapping of the synchronization signal block and the second random access opportunity. Optionally, the number of synchronization signal blocks associated with a valid first random access opportunity is N1, the number of synchronization signal blocks associated with a valid second random access opportunity is N2, and N1=N2.

[0484] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain and the overlapping first random access opportunity and the second random access opportunity are both valid random access opportunities, the element values ​​in the first root sequence index set used to generate the preamble code transmitted on the first random access opportunity are exactly the same as the element values ​​in the second root sequence index set used to generate the preamble code transmitted on the second random access opportunity, and the mapping of the synchronization signal block and the first random access opportunity is also exactly the same as the mapping of the synchronization signal block and the second random access opportunity. Assuming that the root sequence index used to generate the preamble code transmitted on the first random access opportunity and the second random access opportunity is u, and the number of synchronization signal blocks associated with a valid first random access opportunity and the second random access opportunity is N, the same group of root sequences is partitioned according to the following method:

[0485] Optionally, if N≤1, the preamble of one random access opportunity (RO) is allocated to only one SSB, the first R consecutive preambles are used for contention-based random access (including four-step random access and / or two-step random access) at the second random access opportunity, followed by Q consecutive preambles used for contention-based random access (including four-step random access and / or two-step random access) at the first random access opportunity, and the remaining S (total number of preambles)-RQ preambles are allocated to contention-free random access (including contention-free random access at the first random access opportunity and contention-free random access at the second random access opportunity);

[0486] Optionally, if N>1, the preamble codes of a random access opportunity (RO) are evenly distributed to 2*N SSBs, and each SSB obtains continuous S / (2*N), starting from n*(S / (2*N))(0≤n≤2*N-1), and in order of SSB index, the first S / 2 preamble codes are used as each SSB to perform contention-based random access (including four-step random access and / or two-step random access) and contention-free random access at the second random access opportunity, and the last S / 2 preamble codes are used as each SSB to perform contention-based random access (including four-step random access and / or two-step random access) at the first random access opportunity and contention-free random access at the first random access opportunity.

[0487] Optionally, the total number S of preambles of a random access opportunity (RO) is configured according to a higher layer parameter totalNumberOfRA-Preambles.

[0488] Optionally, the number of synchronization signal blocks associated with a random access opportunity and the number of preamble codes associated with each synchronization signal block are configured according to the high-level parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB.

[0489] Optionally, the mapping of the synchronization signal block and the first random access opportunity is exactly the same as the mapping of the synchronization signal block and the second random access opportunity, which means that the first configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the first random access opportunity is the same as at least one configuration parameter in the second configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the second random access opportunity.

[0490] Optionally, the first configuration parameter set includes at least one of ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19, prach-ConfigurationIndex-R19, msgA-PRACH-ConfigurationIndex-R19, msg1-FrequencyStart-R19, msgA-RO-FrequencyStart-R19, msg1-FDM-R19, and msgA-RO-FDM-R19.

[0491] Optionally, the second configuration parameter set includes at least one of ssb-perRACH-OccasionAndCB-PreamblesPerSSB, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB, prach-ConfigurationIndex, msgA-PRACH-ConfigurationIndex, msg1-FrequencyStart, msgA-RO-FrequencyStart, msg1-FDM, and msgA-RO-FDM.

[0492] Optionally, the mapping of the synchronization signal block and the first random access opportunity is completely identical to the mapping of the synchronization signal block and the second random access opportunity, including at least one of the following:

[0493] The format of the preamble transmitted at the first random access opportunity is the same as the format of the preamble transmitted at the second random access opportunity;

[0494] A first root sequence index used to generate the preamble transmitted on the first random access opportunity is the same as a second root sequence index used to generate the preamble transmitted on the second random access opportunity;

[0495] The synchronization signal block index mapped to the first random access opportunity is exactly the same as the synchronization signal block index mapped to the second random access opportunity;

[0496] At least one synchronization signal block index mapped to the first random access opportunity is different from at least one synchronization signal block index mapped to the second random access opportunity;

[0497] The number of synchronization signal blocks associated with a valid first random access opportunity is the same as the number of synchronization signal blocks associated with a valid second random access opportunity.

[0498] Optionally, the valid random access opportunity includes at least one of the following:

[0499] For frequency division duplex or supplementary uplink, all random access opportunities are valid;

[0500] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the random access opportunity in the random access slot is valid;

[0501] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access slot is within a UL symbol, the random access opportunity in the random access slot is valid;

[0502] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, the random access opportunity in the random access slot is valid.

[0503] Optionally, the valid first random access opportunity includes at least one of the following:

[0504] For frequency division duplex or supplementary uplink, all first random access opportunities are valid;

[0505] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the first random access opportunity in the random access slot is valid;

[0506] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access slot is within a UL symbol, then the first random access opportunity in the random access slot is valid;

[0507] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the first random access opportunity gap symbols later, the first random access opportunity in the random access slot is valid.

[0508] Optionally, the valid second random access opportunity includes at least one of the following:

[0509] For frequency division duplex or supplementary uplink, all second random access opportunities are valid;

[0510] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the second random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the second random access opportunity in the random access slot is valid;

[0511] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access slot is within a UL symbol, the second random access opportunity in the random access slot is valid;

[0512] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the second random access opportunity is at least N times after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the second random access opportunity gap symbols later, the second random access opportunity in the random access slot is valid.

[0513] Optionally, the order of mapping synchronization signal blocks and random access opportunities includes:

[0514] First, in ascending order of preamble index within a random access opportunity;

[0515] Second, in ascending order of frequency domain resource indexes of random access opportunities multiplexed in the frequency domain;

[0516] Third, in the order of increasing time domain resource index of random access opportunities of time domain multiplexing within a random access time slot

[0517] Fourth, in the order of increasing random access slot index.

[0518] Optionally, the order of mapping the synchronization signal blocks and the random access opportunities refers to the order of mapping the synchronization signal blocks and the valid random access opportunities.

[0519] Optionally, the order of mapping the synchronization signal block and the valid first random access opportunity includes:

[0520] First, according to the increasing order of preamble index within a first random access opportunity;

[0521] Second, in ascending order of the frequency domain resource index of the first random access opportunity multiplexed in the frequency domain;

[0522] Third, according to the increasing order of the time domain resource index of the first random access opportunity time domain multiplexing within a random access time slot;

[0523] Fourth, in the order of increasing random access slot index.

[0524] Optionally, the order of mapping the synchronization signal block and the valid second random access opportunity includes:

[0525] First, according to the increasing order of preamble index within a second random access opportunity;

[0526] Second, in ascending order of frequency domain resource indexes of second random access opportunities multiplexed in the frequency domain;

[0527] Third, according to the increasing order of the time domain resource index of the second random access opportunity time domain multiplexing within a random access time slot;

[0528] Fourth, in the order of increasing random access slot index.

[0529] Optionally, a value of the first root sequence index used to generate the preamble transmitted at the first random access opportunity is related to the format of the preamble and / or the length of the preamble.

[0530] Optionally, when the format of the preamble is preamble format 0, preamble format 1, preamble format 2, or preamble format 3, the value of the first root sequence index belongs to the set {0, 1, ..., 837}.

[0531] Optionally, when the leading code length is 839, the value of the first root sequence index belongs to the set {0, 1, ..., 837}.

[0532] Optionally, when the preamble format is preamble format A1, preamble format A2, preamble format A3, preamble format B1, preamble format B2, preamble format B3, preamble format B4, preamble format C0, or preamble format C2, and the preamble length is 139, the value of the first root sequence index belongs to the set {0, 1, ..., 137}.

[0533] Optionally, when the preamble format is preamble format A1, preamble format A2, preamble format A3, preamble format B1, preamble format B2, preamble format B3, preamble format B4, preamble format C0, or preamble format C2, and the preamble length is 571, the value of the first root sequence index belongs to the set {0, 1, ..., 569}.

[0534] Optionally, when the preamble format is preamble format A1, preamble format A2, preamble format A3, preamble format B1, preamble format B2, preamble format B3, preamble format B4, preamble format C0, or preamble format C2, and the preamble length is 1151, the value of the first root sequence index belongs to the set {0, 1, ..., 1149}.

[0535] Through the technical solution of this embodiment, the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information, thereby optimizing the mapping mechanism of the synchronization signal block and the random access opportunity, and enabling the network device to effectively distinguish the beam direction used by the terminal device performing random access.

[0536] Fifth embodiment

[0537] Based on any of the above embodiments of the present application, a fifth embodiment of the present application is proposed. This embodiment mainly describes a processing method for mapping synchronization signal blocks and random access opportunities.

[0538] This embodiment mainly targets scenarios where the network allows NES (network energy saving) users and traditional users to coexist, and optimizes the mapping mechanism between synchronization signal blocks (SSBs) and random access opportunities (ROs), so that network devices can effectively distinguish the beam directions used by terminal devices performing random access, thereby improving resource utilization efficiency and / or reducing access delays. In particular, when the random access resources of NES users and traditional users conflict, it can ensure that the mappings of NES users and traditional users do not interfere with each other, and / or ensure that the network devices can accurately determine the beam direction used by the terminal initiating random access based on the received preamble code opportunity.

[0539] Optionally, the random access resources for random access by NES users are referred to as first random access resources, and the random access resources for random access by traditional users are referred to as second random access resources.

[0540] Optionally, when the first random access resource is not configured or when both the first random access resource and the second random access resource are configured, the NES user may also use the second random access resource for random access.

[0541] Optionally, the mapping of the synchronization signal block and the random access opportunity is determined based on the downlink information.

[0542] Optionally, the random access opportunity is the first random access opportunity and / or the second random access opportunity.

[0543] Optionally, the first random access opportunity is located in the first random access resource.

[0544] Optionally, the second random access opportunity is located in a second random access resource.

[0545] Optionally, the first random access opportunity is applicable to four-step random access and / or two-step random access.

[0546] Optionally, the random access opportunity is a valid random access opportunity.

[0547] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0548] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, all first random access opportunities at the same symbol position as the first random access opportunity in a random access time slot are invalid first random access opportunities, and the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0549] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in the time domain but partially overlap in the frequency domain, all first random access opportunities located at the same symbol position as the first random access opportunity in a random access slot are invalid first random access opportunities. Optionally, assume that the number of first random access opportunities located at the same symbol position as the first random access opportunity in a random access slot is 2, and are denoted as RO#2 and RO#3, respectively. Assume that the first random access opportunity RO#2 completely overlaps with the second random access opportunity RO#0 in the time domain but partially overlaps with the second random access opportunity RO#2 in the frequency domain, then both the first random access opportunities RO#2 and RO#3 are invalid first random access opportunities. If the second random access opportunity RO#0 meets the conditions for a valid second random access opportunity, it can be a valid second random access opportunity.

[0550] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, and the first random access opportunity completely overlaps in the time domain but partially overlaps with the second random access opportunity in the frequency domain is an invalid first random access opportunity, and the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0551] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in the time domain but partially overlap in the frequency domain, the first random access opportunity completely overlaps in the time domain but partially overlaps in the frequency domain, and the first random access opportunity completely overlaps in the time domain but partially overlaps in the frequency domain is an invalid first random access opportunity. Optionally, assume that the number of first random access opportunities in a random access slot that are located at the same symbol position as the first random access opportunity is 2, and are denoted as RO#2 and RO#3, respectively. Assume that the first random access opportunity RO#2 completely overlaps with the second random access opportunity RO#0 in the time domain but partially overlaps in the frequency domain, then only the first random access opportunity RO#2 is an invalid first random access opportunity. If the first random access opportunity RO#3 meets the conditions for a valid first random access opportunity, it can be a valid first random access opportunity. If the second random access opportunity RO#0 meets the conditions for a valid second random access opportunity, it can be a valid second random access opportunity.

[0552] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0553] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, all first random access opportunities at the same symbol position as the first random access opportunity in a random access time slot are invalid first random access opportunities, and the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0554] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in the frequency domain but partially overlap in the time domain, all first random access opportunities located at the same symbol position as the first random access opportunity in a random access slot are invalid first random access opportunities. Optionally, assume that the number of first random access opportunities located at the same symbol position as the first random access opportunity in a random access slot is 2, and are denoted as RO#2 and RO#3, respectively. Assume that the first random access opportunity RO#2 completely overlaps with the second random access opportunity RO#0 in the frequency domain but partially overlaps in the time domain, then both the first random access opportunities RO#2 and RO#3 are invalid first random access opportunities. If the second random access opportunity RO#0 meets the conditions for a valid second random access opportunity, it can be a valid second random access opportunity.

[0555] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, and the first random access opportunity completely overlaps in the frequency domain but partially overlaps with the second random access opportunity in the time domain is an invalid first random access opportunity, and the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0556] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in the frequency domain but partially overlap in the time domain, the first random access opportunity completely overlaps in the frequency domain but partially overlaps in the time domain, and the first random access opportunity completely overlaps in the frequency domain but partially overlaps in the time domain is an invalid first random access opportunity. Specifically, assume that the number of first random access opportunities located at the same symbol position as the first random access opportunity in a random access slot is 2, and are denoted as RO#2 and RO#3. Assume that the first random access opportunity RO#2 completely overlaps with the second random access opportunity RO#0 in the frequency domain but partially overlaps in the time domain. In this case, only the first random access opportunity RO#2 is an invalid first random access opportunity. If the first random access opportunity RO#3 meets the conditions for a valid first random access opportunity, it can be a valid first random access opportunity. Similarly, if the second random access opportunity RO#0 meets the conditions for a valid second random access opportunity, it can be a valid second random access opportunity.

[0557] Optionally, the mapping of the synchronization signal block and the first random access opportunity refers to: the mapping of the synchronization signal block and the valid first random access opportunity.

[0558] Optionally, the mapping of the synchronization signal block and the first random access opportunity and the mapping of the synchronization signal block and the second random access opportunity are independent of each other, which means that the first configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the first random access opportunity and the second configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the second random access opportunity are independently configured.

[0559] Optionally, the first configuration parameter set includes at least one of ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19, prach-ConfigurationIndex-R19, msgA-PRACH-ConfigurationIndex-R19, msg1-FrequencyStart-R19, msgA-RO-FrequencyStart-R19, msg1-FDM-R19, and msgA-RO-FDM-R19.

[0560] Optionally, the second configuration parameter set includes at least one of ssb-perRACH-OccasionAndCB-PreamblesPerSSB, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB, prach-ConfigurationIndex, msgA-PRACH-ConfigurationIndex, msg1-FrequencyStart, msgA-RO-FrequencyStart, msg1-FDM, and msgA-RO-FDM.

[0561] Optionally, the valid first random access opportunity further includes at least one of the following:

[0562] For frequency division duplex or supplemental uplink, if the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity is valid;

[0563] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, and the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity in the random access slot is valid;

[0564] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access slot is within a UL symbol, and the first random access opportunity is not a random access opportunity that satisfies the first condition, then the first random access opportunity in the random access slot is valid;

[0565] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, and the first random access opportunity is not a random access opportunity that meets the first condition, then the first random access opportunity in the random access slot is valid.

[0566] Optionally, the random access opportunity that meets the first condition includes at least one of the following:

[0567] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, all first random access opportunities in a random access slot that are located at the same symbol position as the first random access opportunity;

[0568] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0569] When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0570] a first random access opportunity that completely overlaps with the second random access opportunity in both the time domain and the frequency domain;

[0571] a first random access opportunity that completely overlaps with the second random access opportunity in the time domain but partially overlaps with the second random access opportunity in the frequency domain;

[0572] A first random access opportunity that completely overlaps with a second random access opportunity in the frequency domain but partially overlaps with the second random access opportunity in the time domain.

[0573] Optionally, the random access opportunity that meets the first condition is an invalid first random access opportunity.

[0574] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, or when the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, the element values ​​​​in the first root sequence index set used to generate the preamble code transmitted at the first random access opportunity are completely different from the element values ​​​​in the second root sequence index set used to generate the preamble code transmitted at the second random access opportunity, and the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0575] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, or when the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, the first random access opportunity and the second random access opportunity that completely overlap in the frequency domain and partially overlap in the time domain are both valid random access opportunities.

[0576] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, or when the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, and the first random access opportunity and the second random access opportunity that completely overlap in the frequency domain and partially overlap in the time domain are both valid random access opportunities, the element values ​​in the first root sequence index set used for generating the preamble code transmitted at the first random access opportunity are completely different from the element values ​​in the second root sequence index set used for generating the preamble code transmitted at the second random access opportunity, and the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0577] Optionally, when the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, or when the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, and the first random access opportunity and the second random access opportunity that completely overlap in the frequency domain and partially overlap in the time domain are both valid random access opportunities, the first root sequence index value used for generating the preamble code transmitted on the first random access opportunity is the sum of the second root sequence index value used for generating the preamble code transmitted on the second random access opportunity and the first value, and the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0578] Optionally, the valid random access opportunity includes at least one of the following:

[0579] For frequency division duplex or supplementary uplink, all random access opportunities are valid;

[0580] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot.gap symbols later, the random access opportunity in the random access slot is valid;

[0581] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access slot is within a UL symbol, the random access opportunity in the random access slot is valid;

[0582] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, the random access opportunity in the random access time slot is valid;

[0583] Optionally, the valid second random access opportunity includes at least one of the following:

[0584] For frequency division duplex or supplementary uplink, all second random access opportunities are valid;

[0585] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the second random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the second random access opportunity in the random access slot is valid;

[0586] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access slot is within a UL symbol, the second random access opportunity in the random access slot is valid;

[0587] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the second random access opportunity is at least N times after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the second random access opportunity gap symbols later, the second random access opportunity in the random access slot is valid.

[0588] Optionally, the order of mapping synchronization signal blocks and random access opportunities includes:

[0589] First, in ascending order of preamble index within a random access opportunity;

[0590] Second, in ascending order of frequency domain resource indexes of random access opportunities multiplexed in the frequency domain;

[0591] Third, in the order of increasing time domain resource index of random access opportunities of time domain multiplexing within a random access time slot

[0592] Fourth, in the order of increasing random access slot index.

[0593] Optionally, the order of mapping the synchronization signal block and the valid first random access opportunity includes:

[0594] First, according to the increasing order of preamble index within a first random access opportunity;

[0595] Second, in ascending order of the frequency domain resource index of the first random access opportunity multiplexed in the frequency domain;

[0596] Third, according to the increasing order of the time domain resource index of the first random access opportunity time domain multiplexing within a random access time slot;

[0597] Fourth, in the order of increasing random access slot index.

[0598] Optionally, the order of mapping the synchronization signal block and the valid second random access opportunity includes:

[0599] First, according to the increasing order of preamble index within a second random access opportunity;

[0600] Second, in ascending order of frequency domain resource indexes of second random access opportunities multiplexed in the frequency domain;

[0601] Third, according to the increasing order of the time domain resource index of the second random access opportunity time domain multiplexing within a random access time slot;

[0602] Fourth, in the order of increasing random access slot index.

[0603] Optionally, the number of synchronization signal blocks and the index of the synchronization signal block are determined according to ssb-PositionsInBurst in system message 1 (SIB1) or serving cell configuration (ServingCellConfigCommon).

[0604] Through the technical solution of this embodiment, the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information, thereby optimizing the mapping mechanism of the synchronization signal block and the random access opportunity, and enabling the network device to effectively distinguish the beam direction used by the terminal device performing random access.

[0605] Sixth embodiment

[0606] Based on any of the above embodiments of the present application, a sixth embodiment of the present application is proposed. This embodiment mainly describes a processing method for mapping synchronization signal blocks and random access opportunities.

[0607] This embodiment mainly targets scenarios where the network allows NES (network energy saving) users and traditional users to coexist, and optimizes the mapping mechanism between synchronization signal blocks (SSBs) and random access opportunities (ROs), so that network devices can effectively distinguish the beam directions used by terminal devices performing random access, thereby improving resource utilization efficiency and / or reducing access delays. In particular, when the random access resources of NES users and traditional users conflict, it can ensure that the mappings of NES users and traditional users do not interfere with each other, and / or ensure that the network devices can accurately determine the beam direction used by the terminal initiating random access based on the received preamble code opportunity.

[0608] Optionally, the random access resources for random access by NES users are referred to as first random access resources, and the random access resources for random access by traditional users are referred to as second random access resources.

[0609] Optionally, when the first random access resource is not configured or when both the first random access resource and the second random access resource are configured, the NES user may also use the second random access resource for random access.

[0610] Optionally, the mapping of the synchronization signal block and the random access opportunity is determined based on the downlink information.

[0611] Optionally, the random access opportunity is the first random access opportunity and / or the second random access opportunity.

[0612] Optionally, the first random access opportunity is located in the first random access resource.

[0613] Optionally, the second random access opportunity is located in a second random access resource.

[0614] Optionally, the first random access opportunity is applicable to four-step random access and / or two-step random access.

[0615] Optionally, the random access opportunity is a valid random access opportunity.

[0616] Optionally, when the first random access opportunity and the second random access opportunity do not overlap in the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0617] Optionally, the mapping of the synchronization signal block and the first random access opportunity and the mapping of the synchronization signal block and the second random access opportunity are independent of each other, which means that the first configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the first random access opportunity and the second configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the second random access opportunity are independently configured.

[0618] Optionally, the first configuration parameter set includes at least one of ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19, prach-ConfigurationIndex-R19, msgA-PRACH-ConfigurationIndex-R19, msg1-FrequencyStart-R19, msgA-RO-FrequencyStart-R19, msg1-FDM-R19, and msgA-RO-FDM-R19.

[0619] Optionally, the second configuration parameter set includes at least one of ssb-perRACH-OccasionAndCB-PreamblesPerSSB, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB, prach-ConfigurationIndex, msgA-PRACH-ConfigurationIndex, msg1-FrequencyStart, msgA-RO-FrequencyStart, msg1-FDM, and msgA-RO-FDM.

[0620] Optionally, when the first random access opportunity and the second random access opportunity do not overlap in the time domain and the frequency domain, the element values ​​in the first root sequence index set used to generate the preamble code transmitted at the first random access opportunity are completely different from the element values ​​in the second root sequence index set used to generate the preamble code transmitted at the second random access opportunity.

[0621] Optionally, when the first random access opportunity and the second random access opportunity do not overlap in the time domain and the frequency domain, the first root sequence index value used to generate the preamble code transmitted on the first random access opportunity is the sum of the second root sequence index value used to generate the preamble code transmitted on the second random access opportunity and the first value.

[0622] Optionally, the valid random access opportunity includes at least one of the following:

[0623] For frequency division duplex or supplementary uplink, all random access opportunities are valid;

[0624] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the random access opportunity in the random access slot is valid;

[0625] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access slot is within a UL symbol, the random access opportunity in the random access slot is valid;

[0626] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, the random access opportunity in the random access time slot is valid;

[0627] Optionally, the valid second random access opportunity includes at least one of the following:

[0628] For frequency division duplex or supplementary uplink, all second random access opportunities are valid;

[0629] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the second random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the second random access opportunity in the random access slot is valid;

[0630] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access slot is within a UL symbol, the second random access opportunity in the random access slot is valid;

[0631] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the second random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the second random access opportunity is at least N times after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the second random access opportunity gap symbols later, the second random access opportunity in the random access slot is valid;

[0632] Optionally, the order of mapping synchronization signal blocks and random access opportunities includes:

[0633] First, in ascending order of preamble index within a random access opportunity;

[0634] Second, in ascending order of frequency domain resource indexes of random access opportunities multiplexed in the frequency domain;

[0635] Third, in the order of increasing time domain resource index of random access opportunities of time domain multiplexing within a random access time slot

[0636] Fourth, in the order of increasing random access slot index.

[0637] Optionally, the order of mapping the synchronization signal blocks and the random access opportunities refers to the order of mapping the synchronization signal blocks and the valid random access opportunities.

[0638] Optionally, the order of mapping the synchronization signal block and the valid first random access opportunity includes:

[0639] First, according to the increasing order of preamble index within a first random access opportunity;

[0640] Second, in ascending order of the frequency domain resource index of the first random access opportunity multiplexed in the frequency domain;

[0641] Third, according to the increasing order of the time domain resource index of the first random access opportunity time domain multiplexing within a random access time slot;

[0642] Fourth, in the order of increasing random access slot index.

[0643] Optionally, the order of mapping the synchronization signal block and the valid second random access opportunity includes:

[0644] First, according to the increasing order of preamble index within a second random access opportunity;

[0645] Second, in ascending order of frequency domain resource indexes of second random access opportunities multiplexed in the frequency domain;

[0646] Third, according to the increasing order of the time domain resource index of the second random access opportunity time domain multiplexing within a random access time slot;

[0647] Fourth, in the order of increasing random access slot index.

[0648] Optionally, the number of synchronization signal blocks and the index of the synchronization signal block are determined according to ssb-PositionsInBurst in system message 1 (SIB1) or serving cell configuration (ServingCellConfigCommon).

[0649] Through the technical solution of this embodiment, the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information, thereby optimizing the mapping mechanism of the synchronization signal block and the random access opportunity, and enabling the network device to effectively distinguish the beam direction used by the terminal device performing random access.

[0650] Seventh embodiment

[0651] 15 , which is a flow chart of a processing method according to a seventh embodiment of the present application, the processing method according to the embodiment of the present application can be applied to a network device (such as a base station), and includes the following steps:

[0652] S1: The network device sends downlink information so that the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information.

[0653] This embodiment mainly targets scenarios where the network allows NES (network energy saving) users and traditional users to coexist, and optimizes the mapping mechanism between synchronization signal blocks (SSBs) and random access opportunities (ROs), so that network devices can effectively distinguish the beam directions used by terminal devices performing random access, thereby improving resource utilization efficiency and / or reducing access delays. In particular, when the random access resources of NES users and traditional users conflict, it can ensure that the mappings of NES users and traditional users do not interfere with each other, and / or ensure that the network devices can accurately determine the beam direction used by the terminal initiating random access based on the received preamble code opportunity. Through this method, the present application can improve the efficiency of random access, reduce access conflicts, optimize network performance, and improve the quality of service for all users.

[0654] In this embodiment, the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information.

[0655] Optionally, the downlink information includes at least one of a radio resource control message, a media access control message, a system message and downlink control information.

[0656] Optionally, the random access resources for random access by NES users are referred to as first random access resources, and the random access resources for random access by traditional users are referred to as second random access resources.

[0657] Optionally, when the first random access resource is not configured or when both the first random access resource and the second random access resource are configured, the NES user may also use the second random access resource for random access.

[0658] Optionally, the random access opportunity is the first random access opportunity and / or the second random access opportunity.

[0659] Optionally, the first random access opportunity is located in the first random access resource.

[0660] Optionally, the second random access opportunity is located in a second random access resource.

[0661] Optionally, the first random access opportunity is applicable to four-step random access and / or two-step random access.

[0662] Optionally, the second random access opportunity is applicable to four-step random access and / or two-step random access.

[0663] Optionally, the first random access opportunity and / or the second random access opportunity are both valid random access opportunities.

[0664] Optionally, the terminal device determines, based on the downlink information, a mapping between a synchronization signal block and a random access opportunity, including at least one of the following:

[0665] Determine the number of synchronization signal blocks and the index of the synchronization signal block according to the downlink information;

[0666] Determine, according to the downlink information, a radio frame, a subframe, and a timeslot position of a first random access opportunity in the first random access resource;

[0667] Determine, according to the downlink information, a frequency domain starting RB position of a first random access opportunity in the first random access resource on the activated bandwidth;

[0668] determining, according to the downlink information, the number of random access opportunities for frequency domain multiplexing of the first random access opportunity in the first random access resource at one time instance;

[0669] Determining the number of synchronization signal blocks associated with a first random access opportunity according to the downlink information;

[0670] The mapping of the synchronization signal block and the first random access opportunity is determined based on at least one of the number of synchronization signal blocks, the index of the synchronization signal block, the number of first random access opportunities in the time domain within a period of a random access opportunity, the number of first random access opportunities multiplexed in the frequency domain at a time instance, and the number of synchronization signal blocks associated with a first random access opportunity.

[0671] Optionally, the terminal device determines the number of synchronization signal blocks and the index of the synchronization signal block based on ssb-PositionsInBurst in system message 1 (SIB1) or serving cell configuration (ServingCellConfigCommon).

[0672] Optionally, the terminal device determines the number of synchronization signal blocks and the index of the synchronization signal block based on at least one of the wireless resource control message, the media access control message, the system message and the downlink control information.

[0673] Optionally, the number of synchronization signal blocks actually transmitted mapped on the first random access opportunity may be the same as or different from the number of synchronization signal blocks actually transmitted mapped on the first random access opportunity.

[0674] Optionally, the radio frame, subframe and time slot position of the first random access opportunity in the first random access resource is determined according to the radio resource control message prach-ConfigurationIndex-R19 and / or msgA-PRACH-ConfigurationIndex-R19.

[0675] Optionally, the terminal device determines the radio frame, subframe and time slot position of the first random access opportunity in the first random access resource based on at least one of the radio resource control message, the media access control message, the system message and the downlink control information.

[0676] Optionally, the frequency domain starting RB position of the first random access opportunity in the first random access resource on the activated bandwidth is determined according to the radio resource control message msg1-FrequencyStart-R19 and / or msgA-RO-FrequencyStart-R19.

[0677] Optionally, the number of ROs frequency-domain multiplexed at one time instance for the first random access opportunity in the first random access resource is determined according to the radio resource control message msg1-FDM-R19 and / or msgA-RO-FDM-R19.

[0678] Optionally, the terminal device determines, based on the downlink information, a mapping between a synchronization signal block and a random access opportunity, including at least one of the following:

[0679] Determine the number of synchronization signal blocks and the index of the synchronization signal block according to the downlink information;

[0680] Determine, according to the downlink information, a radio frame, a subframe, and a timeslot position of a second random access opportunity in the second random access resource;

[0681] Determine, according to the downlink information, a frequency domain starting RB position of a second random access opportunity in the second random access resource on the activated bandwidth;

[0682] determining, according to the downlink information, the number of random access opportunities for frequency domain multiplexing of the second random access opportunity in the second random access resource at one time instance;

[0683] Determining the number of synchronization signal blocks associated with a second random access opportunity according to the downlink information;

[0684] The mapping of the synchronization signal block and the second random access opportunity is determined according to the number of synchronization signal blocks, the index of the synchronization signal block, the number of second random access opportunities in the time domain within a period of a random access opportunity, and the number of second random access opportunities multiplexed in the frequency domain at a time instance.

[0685] Optionally, the terminal device determines the number of synchronization signal blocks and the index of the synchronization signal block based on ssb-PositionsInBurst in system message 1 (SIB1) or serving cell configuration (ServingCellConfigCommon).

[0686] Optionally, the radio frame, subframe and time slot position of the second random access opportunity in the second random access resource is determined according to the radio resource control message prach-ConfigurationIndex and / or msgA-PRACH-ConfigurationIndex.

[0687] Optionally, the frequency domain starting RB position of the second random access opportunity in the second random access resource on the activated bandwidth is determined according to the radio resource control message msg1-FrequencyStart and / or msgA-RO-FrequencyStart.

[0688] Optionally, the number of ROs frequency-domain multiplexed in a second random access opportunity in the second random access resource at one time instance is determined according to the radio resource control message msg1-FDM and / or msgA-RO-FDM.

[0689] Optionally, the mapping of synchronization signal blocks and random access opportunities includes at least one of the following:

[0690] When the first random access opportunity and the second random access opportunity do not overlap in the time domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0691] When the first random access opportunity and the second random access opportunity do not overlap in the frequency domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0692] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0693] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is exactly the same as the mapping of the synchronization signal block and the second random access opportunity;

[0694] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0695] When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0696] When the first random access opportunity and the second random access opportunity do not overlap in the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0697] Optionally, the first random access opportunity and the second random access opportunity refer to a valid first random access opportunity and a valid second random access opportunity, respectively.

[0698] Optionally, the first configuration parameter set includes at least one of ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19, prach-ConfigurationIndex-R19, msgA-PRACH-ConfigurationIndex-R19, msg1-FrequencyStart-R19, msgA-RO-FrequencyStart-R19, msg1-FDM-R19, and msgA-RO-FDM-R19.

[0699] Optionally, the second configuration parameter set includes at least one of ssb-perRACH-OccasionAndCB-PreamblesPerSSB, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB, prach-ConfigurationIndex, msgA-PRACH-ConfigurationIndex, msg1-FrequencyStart, msgA-RO-FrequencyStart, msg1-FDM, and msgA-RO-FDM.

[0700] Optionally, the mapping of the synchronization signal block and the first random access opportunity and the mapping of the synchronization signal block and the second random access opportunity are independent of each other, which means that the first configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the first random access opportunity and the second configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the second random access opportunity are independently configured.

[0701] Optionally, for the 4-step random access process, the first configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19 for mapping the synchronization signal block and the first random access opportunity and the second configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB for mapping the synchronization signal block and the second random access opportunity may be the same or different.

[0702] Optionally, for the 2-step random access process, the first configuration parameter msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19 for mapping the synchronization signal block and the first random access opportunity and the second configuration parameter msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB for mapping the synchronization signal block and the second random access opportunity may be the same or different.

[0703] Optionally, the mapping of the synchronization signal block and the first random access opportunity is exactly the same as the mapping of the synchronization signal block and the second random access opportunity, which means that at least one first configuration parameter in the first configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the first random access opportunity is the same as at least one second configuration parameter in the second configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the second random access opportunity.

[0704] Optionally, for the 4-step random access process, the first configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19 for mapping the synchronization signal block and the first random access opportunity is exactly the same as the second configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB for mapping the synchronization signal block and the second random access opportunity.

[0705] Optionally, for the 2-step random access process, the first configuration parameter msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19 for mapping the synchronization signal block and the first random access opportunity is exactly the same as the second configuration parameter msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB for mapping the synchronization signal block and the second random access opportunity.

[0706] Optionally, the mapping of the synchronization signal block and the first random access opportunity refers to the mapping of the synchronization signal block and the valid first random access opportunity.

[0707] Optionally, the mapping of the synchronization signal block and the second random access opportunity refers to the mapping of the synchronization signal block and the valid second random access opportunity.

[0708] Optionally, ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19, ssb-perRACH-OccasionAndCB-PreamblesPerSSB, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB are used to determine the number of valid first random access opportunities or second random access opportunities associated with a synchronization signal block.

[0709] Optionally, the order of mapping synchronization signal blocks and random access opportunities includes:

[0710] First, in ascending order of preamble index within a random access opportunity;

[0711] Second, in ascending order of frequency domain resource indexes of random access opportunities multiplexed in the frequency domain;

[0712] Third, in ascending order of time domain resource indexes of random access opportunities time domain multiplexed within a random access time slot;

[0713] Fourth, in the order of increasing random access slot index.

[0714] Optionally, the order of mapping the synchronization signal blocks and the random access opportunities refers to the order of mapping the synchronization signal blocks and the valid random access opportunities.

[0715] Optionally, the order of mapping the synchronization signal block and the valid first random access opportunity includes:

[0716] First, according to the increasing order of preamble index within a first random access opportunity;

[0717] Second, in ascending order of the frequency domain resource index of the first random access opportunity multiplexed in the frequency domain;

[0718] Third, according to the increasing order of the time domain resource index of the first random access opportunity time domain multiplexing within a random access time slot;

[0719] Fourth, in the order of increasing random access slot index.

[0720] Optionally, the terminal device determines an order of mapping the synchronization signal blocks and the valid second random access opportunities, including:

[0721] First, according to the increasing order of preamble index within a second random access opportunity;

[0722] Second, in ascending order of frequency domain resource indexes of second random access opportunities multiplexed in the frequency domain;

[0723] Third, according to the increasing order of the time domain resource index of the second random access opportunity time domain multiplexing within a random access time slot;

[0724] Fourth, in the order of increasing random access slot index.

[0725] Optionally, the method further comprises at least one of the following:

[0726] The format of the preamble transmitted at the first random access opportunity is the same as the format of the preamble transmitted at the second random access opportunity;

[0727] The format of the preamble transmitted at the first random access opportunity is independent of the format of the preamble transmitted at the second random access opportunity;

[0728] A first root sequence index used to generate the preamble transmitted on the first random access opportunity is the same as a second root sequence index used to generate the preamble transmitted on the second random access opportunity;

[0729] The element values ​​in the first root sequence index set used to generate the preamble transmitted on the first random access opportunity are completely different from the element values ​​in the second root sequence index set used to generate the preamble transmitted on the second random access opportunity;

[0730] The synchronization signal block index mapped to the first random access opportunity is exactly the same as the synchronization signal block index mapped to the second random access opportunity;

[0731] At least one synchronization signal block index mapped to the first random access opportunity is different from at least one synchronization signal block index mapped to the second random access opportunity.

[0732] Optionally, the first root sequence index value is the sum of the second root sequence index value and the first value.

[0733] Optionally, the value of the first root sequence index is related to the format of the preamble code and / or the length of the preamble code.

[0734] Optionally, the valid random access opportunity includes at least one of the following:

[0735] For frequency division duplex or supplementary uplink, all random access opportunities are valid;

[0736] For time division duplex, if the time division duplex uplink and downlink common configuration is not provided to the terminal equipment, and if the random access opportunity in a random access time slot does not precede the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the random access opportunity in the random access slot is valid;

[0737] For frequency division duplex, if a common configuration of time division duplex uplink and downlink is provided to the terminal equipment, and if the random access opportunity in a random access slot is within a UL symbol, the random access opportunity in the random access slot is valid;

[0738] For time division duplex, if the terminal equipment is provided with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access slot does not precede the synchronization signal block of the random access slot, the random access opportunity is at least N after the last synchronization signal block symbol of the random access slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, the random access opportunity in the random access time slot is valid;

[0739] For frequency division duplex or supplemental uplink, if the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity is valid;

[0740] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, and the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity in the random access slot is valid;

[0741] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access slot is within a UL symbol, and the first random access opportunity is not a random access opportunity that satisfies the first condition, then the first random access opportunity in the random access slot is valid;

[0742] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gapsymbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, and the first random access opportunity is not a random access opportunity that meets the first condition, then the first random access opportunity in the random access slot is valid.

[0743] Optionally, the random access opportunity that meets the first condition includes at least one of the following:

[0744] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, all first random access opportunities in a random access slot that are located at the same symbol position as the first random access opportunity;

[0745] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0746] When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0747] a first random access opportunity that completely overlaps with the second random access opportunity in both the time domain and the frequency domain;

[0748] a first random access opportunity that completely overlaps with the second random access opportunity in the time domain but partially overlaps with the second random access opportunity in the frequency domain;

[0749] A first random access opportunity that completely overlaps with a second random access opportunity in the frequency domain but partially overlaps with the second random access opportunity in the time domain.

[0750] That is, the random access opportunity that meets the first condition is an invalid random access opportunity.

[0751] Optionally, the method further includes:

[0752] S3: The terminal device determines a random access opportunity associated with at least one synchronization signal block based on the mapping between the synchronization signal block and the random access opportunity, and sends a preamble code at the random access opportunity associated with at least one synchronization signal block.

[0753] S4: The network device receives the preamble code according to the mapping of the synchronization signal block and the random access opportunity.

[0754] Through the technical solution of this embodiment, the network device sends downlink information, and the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information, thereby optimizing the mapping mechanism of the synchronization signal block and the random access opportunity, and enabling the network device to effectively distinguish the beam direction used by the terminal device performing random access.

[0755] Eighth embodiment

[0756] 16 , which is a schematic diagram of an interaction flow between a network device and a terminal device according to a processing method according to the eighth embodiment, a ninth embodiment of the present application proposes a processing method, comprising the steps of:

[0757] S1: The network device sends downlink information so that the terminal device determines the mapping between the synchronization signal block and the random access opportunity based on the downlink information;

[0758] S2: The terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information.

[0759] This embodiment mainly targets scenarios where the network allows NES (network energy saving) users and traditional users to coexist, and optimizes the mapping mechanism between synchronization signal blocks (SSBs) and random access opportunities (ROs), so that network devices can effectively distinguish the beam directions used by terminal devices performing random access, thereby improving resource utilization efficiency and / or reducing access delays. In particular, when the random access resources of NES users and traditional users conflict, it can ensure that the mappings of NES users and traditional users do not interfere with each other, and / or ensure that the network devices can accurately determine the beam direction used by the terminal initiating random access based on the received preamble code opportunity. Through this method, the present application can improve the efficiency of random access, reduce access conflicts, optimize network performance, and improve the quality of service for all users.

[0760] In this embodiment, the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information.

[0761] Optionally, the downlink information includes at least one of a radio resource control message, a media access control message, a system message and downlink control information.

[0762] Optionally, the random access resources for random access by NES users are referred to as first random access resources, and the random access resources for random access by traditional users are referred to as second random access resources.

[0763] Optionally, when the first random access resource is not configured or when both the first random access resource and the second random access resource are configured, the NES user may also use the second random access resource for random access.

[0764] Optionally, the random access opportunity is the first random access opportunity and / or the second random access opportunity.

[0765] Optionally, the first random access opportunity is located in the first random access resource.

[0766] Optionally, the second random access opportunity is located in a second random access resource.

[0767] Optionally, the first random access opportunity is applicable to four-step random access and / or two-step random access.

[0768] Optionally, the second random access opportunity is applicable to four-step random access and / or two-step random access.

[0769] Optionally, the first random access opportunity and / or the second random access opportunity are both valid random access opportunities.

[0770] Optionally, the terminal device determines, based on the downlink information, a mapping between a synchronization signal block and a random access opportunity, including at least one of the following:

[0771] Determine the number of synchronization signal blocks and the index of the synchronization signal block according to the downlink information;

[0772] Determine, according to the downlink information, a radio frame, a subframe, and a timeslot position of a first random access opportunity in the first random access resource;

[0773] Determine, according to the downlink information, a frequency domain starting RB position of a first random access opportunity in the first random access resource on the activated bandwidth;

[0774] determining, according to the downlink information, the number of random access opportunities for frequency domain multiplexing of the first random access opportunity in the first random access resource at one time instance;

[0775] Determining the number of synchronization signal blocks associated with a first random access opportunity according to the downlink information;

[0776] The mapping of the synchronization signal block and the first random access opportunity is determined based on at least one of the number of synchronization signal blocks, the index of the synchronization signal block, the number of first random access opportunities in the time domain within a period of a random access opportunity, the number of first random access opportunities multiplexed in the frequency domain at a time instance, and the number of synchronization signal blocks associated with a first random access opportunity.

[0777] Optionally, the terminal device determines the number of synchronization signal blocks and the index of the synchronization signal block based on ssb-PositionsInBurst in system message 1 (SIB1) or serving cell configuration (ServingCellConfigCommon).

[0778] Optionally, the terminal device determines the number of synchronization signal blocks and the index of the synchronization signal block based on at least one of the wireless resource control message, the media access control message, the system message and the downlink control information.

[0779] Optionally, the number of synchronization signal blocks actually transmitted mapped on the first random access opportunity may be the same as or different from the number of synchronization signal blocks actually transmitted mapped on the first random access opportunity.

[0780] Optionally, the radio frame, subframe and time slot position of the first random access opportunity in the first random access resource is determined according to the radio resource control message prach-ConfigurationIndex-R19 and / or msgA-PRACH-ConfigurationIndex-R19.

[0781] Optionally, the terminal device determines the radio frame, subframe and time slot position of the first random access opportunity in the first random access resource based on at least one of the radio resource control message, the media access control message, the system message and the downlink control information.

[0782] Optionally, the frequency domain starting RB position of the first random access opportunity in the first random access resource on the activated bandwidth is determined according to the radio resource control message msg1-FrequencyStart-R19 and / or msgA-RO-FrequencyStart-R19.

[0783] Optionally, the number of ROs frequency-domain multiplexed at one time instance for the first random access opportunity in the first random access resource is determined according to the radio resource control message msg1-FDM-R19 and / or msgA-RO-FDM-R19.

[0784] Optionally, the terminal device determines, based on the downlink information, a mapping between a synchronization signal block and a random access opportunity, including at least one of the following:

[0785] Determine the number of synchronization signal blocks and the index of the synchronization signal block according to the downlink information;

[0786] Determine, according to the downlink information, a radio frame, a subframe, and a timeslot position of a second random access opportunity in the second random access resource;

[0787] Determine, according to the downlink information, a frequency domain starting RB position of a second random access opportunity in the second random access resource on the activated bandwidth;

[0788] determining, according to the downlink information, the number of random access opportunities for frequency domain multiplexing of the second random access opportunity in the second random access resource at one time instance;

[0789] Determining the number of synchronization signal blocks associated with a second random access opportunity according to the downlink information;

[0790] The mapping of the synchronization signal block and the second random access opportunity is determined according to the number of synchronization signal blocks, the index of the synchronization signal block, the number of second random access opportunities in the time domain within a period of a random access opportunity, and the number of second random access opportunities multiplexed in the frequency domain at a time instance.

[0791] Optionally, the terminal device determines the number of synchronization signal blocks and the index of the synchronization signal block based on ssb-PositionsInBurst in system message 1 (SIB1) or serving cell configuration (ServingCellConfigCommon).

[0792] Optionally, the radio frame, subframe and time slot position of the second random access opportunity in the second random access resource is determined according to the radio resource control message prach-ConfigurationIndex and / or msgA-PRACH-ConfigurationIndex.

[0793] Optionally, the frequency domain starting RB position of the second random access opportunity in the second random access resource on the activated bandwidth is determined according to the radio resource control message msg1-FrequencyStart and / or msgA-RO-FrequencyStart.

[0794] Optionally, the number of ROs frequency-domain multiplexed in a second random access opportunity in a second random access resource at a time instance is determined according to the radio resource control message msg1-FDM and / or msgA-RO-FDM.

[0795] Optionally, the mapping of synchronization signal blocks and random access opportunities includes at least one of the following:

[0796] When the first random access opportunity and the second random access opportunity do not overlap in the time domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0797] When the first random access opportunity and the second random access opportunity do not overlap in the frequency domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0798] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0799] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is exactly the same as the mapping of the synchronization signal block and the second random access opportunity;

[0800] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0801] When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0802] When the first random access opportunity and the second random access opportunity do not overlap in the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0803] The first random access opportunity and the second random access opportunity refer to a valid first random access opportunity and a valid second random access opportunity, respectively.

[0804] Optionally, the first configuration parameter set includes at least one of ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19, prach-ConfigurationIndex-R19, msgA-PRACH-ConfigurationIndex-R19, msg1-FrequencyStart-R19, msgA-RO-FrequencyStart-R19, msg1-FDM-R19, and msgA-RO-FDM-R19.

[0805] Optionally, the second configuration parameter set includes at least one of ssb-perRACH-OccasionAndCB-PreamblesPerSSB, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB, prach-ConfigurationIndex, msgA-PRACH-ConfigurationIndex, msg1-FrequencyStart, msgA-RO-FrequencyStart, msg1-FDM, and msgA-RO-FDM.

[0806] Optionally, the mapping of the synchronization signal block and the first random access opportunity and the mapping of the synchronization signal block and the second random access opportunity are independent of each other, which means that the first configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the first random access opportunity and the second configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the second random access opportunity are independently configured.

[0807] Optionally, for the 4-step random access process, the first configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19 for mapping the synchronization signal block and the first random access opportunity and the second configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB for mapping the synchronization signal block and the second random access opportunity may be the same or different.

[0808] Optionally, for the 2-step random access process, the first configuration parameter msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19 for mapping the synchronization signal block and the first random access opportunity and the second configuration parameter msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB for mapping the synchronization signal block and the second random access opportunity may be the same or different.

[0809] Optionally, the mapping of the synchronization signal block and the first random access opportunity is exactly the same as the mapping of the synchronization signal block and the second random access opportunity, which means that at least one first configuration parameter in the first configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the first random access opportunity is the same as at least one second configuration parameter in the second configuration parameter set in the downlink information related to the mapping of the synchronization signal block and the second random access opportunity.

[0810] Optionally, for the 4-step random access process, the first configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19 for mapping the synchronization signal block and the first random access opportunity is exactly the same as the second configuration parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB for mapping the synchronization signal block and the second random access opportunity.

[0811] Optionally, for the 2-step random access process, the first configuration parameter msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19 for mapping the synchronization signal block and the first random access opportunity is exactly the same as the second configuration parameter msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB for mapping the synchronization signal block and the second random access opportunity.

[0812] Optionally, the mapping of the synchronization signal block and the first random access opportunity refers to the mapping of the synchronization signal block and the valid first random access opportunity.

[0813] Optionally, the mapping of the synchronization signal block and the second random access opportunity refers to the mapping of the synchronization signal block and the valid second random access opportunity.

[0814] Optionally, ssb-perRACH-OccasionAndCB-PreamblesPerSSB-R19, ssb-perRACH-OccasionAndCB-PreamblesPerSSB, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB-R19, msgA-SSBPerRACH-OccasionAndCB-PreamblesPerSSB are used to determine the number of valid first random access opportunities or second random access opportunities associated with a synchronization signal block.

[0815] Optionally, the order of mapping synchronization signal blocks and random access opportunities includes:

[0816] First, in ascending order of preamble index within a random access opportunity;

[0817] Second, in ascending order of frequency domain resource indexes of random access opportunities multiplexed in the frequency domain;

[0818] Third, in ascending order of time domain resource indexes of random access opportunities time domain multiplexed within a random access time slot;

[0819] Fourth, in the order of increasing random access slot index.

[0820] Optionally, the order of mapping the synchronization signal blocks and the random access opportunities refers to the order of mapping the synchronization signal blocks and the valid random access opportunities.

[0821] Optionally, the order of mapping the synchronization signal block and the valid first random access opportunity includes:

[0822] First, according to the increasing order of preamble index within a first random access opportunity;

[0823] Second, in ascending order of the frequency domain resource index of the first random access opportunity multiplexed in the frequency domain;

[0824] Third, according to the increasing order of the time domain resource index of the first random access opportunity time domain multiplexing within a random access time slot;

[0825] Fourth, in the order of increasing random access slot index.

[0826] Optionally, the terminal device determines an order of mapping the synchronization signal blocks and the valid second random access opportunities, including:

[0827] First, according to the increasing order of preamble index within a second random access opportunity;

[0828] Second, in ascending order of frequency domain resource indexes of second random access opportunities multiplexed in the frequency domain;

[0829] Third, according to the increasing order of the time domain resource index of the second random access opportunity time domain multiplexing within a random access time slot;

[0830] Fourth, in the order of increasing random access slot index.

[0831] Optionally, the method further comprises at least one of the following:

[0832] The format of the preamble transmitted at the first random access opportunity is the same as the format of the preamble transmitted at the second random access opportunity;

[0833] The format of the preamble transmitted at the first random access opportunity is independent of the format of the preamble transmitted at the second random access opportunity;

[0834] A first root sequence index used to generate the preamble transmitted on the first random access opportunity is the same as a second root sequence index used to generate the preamble transmitted on the second random access opportunity;

[0835] The element values ​​in the first root sequence index set used to generate the preamble transmitted on the first random access opportunity are completely different from the element values ​​in the second root sequence index set used to generate the preamble transmitted on the second random access opportunity;

[0836] The synchronization signal block index mapped to the first random access opportunity is exactly the same as the synchronization signal block index mapped to the second random access opportunity;

[0837] At least one synchronization signal block index mapped to the first random access opportunity is different from at least one synchronization signal block index mapped to the second random access opportunity.

[0838] Optionally, the first root sequence index value is the sum of the second root sequence index value and the first value.

[0839] Optionally, the value of the first root sequence index is related to the format of the preamble code and / or the length of the preamble code.

[0840] Optionally, the valid random access opportunity includes at least one of the following:

[0841] For frequency division duplex or supplementary uplink, all random access opportunities are valid;

[0842] For time division duplex, if the time division duplex uplink and downlink common configuration is not provided to the terminal equipment, and if the random access opportunity in a random access time slot does not precede the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the random access opportunity in the random access slot is valid;

[0843] For frequency division duplex, if a common configuration of time division duplex uplink and downlink is provided to the terminal equipment, and if the random access opportunity in a random access slot is within a UL symbol, the random access opportunity in the random access slot is valid;

[0844] For time division duplex, if the terminal equipment is provided with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access slot does not precede the synchronization signal block of the random access slot, the random access opportunity is at least N after the last synchronization signal block symbol of the random access slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, the random access opportunity in the random access time slot is valid;

[0845] For frequency division duplex or supplemental uplink, if the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity is valid;

[0846] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, and the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity in the random access slot is valid;

[0847] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access slot is within a UL symbol, and the first random access opportunity is not a random access opportunity that satisfies the first condition, then the first random access opportunity in the random access slot is valid;

[0848] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, and the first random access opportunity is not a random access opportunity that meets the first condition, then the first random access opportunity in the random access slot is valid.

[0849] Optionally, the random access opportunity that meets the first condition includes at least one of the following:

[0850] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, all first random access opportunities in a random access slot that are located at the same symbol position as the first random access opportunity;

[0851] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0852] When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0853] a first random access opportunity that completely overlaps with the second random access opportunity in both the time domain and the frequency domain;

[0854] a first random access opportunity that completely overlaps with the second random access opportunity in the time domain but partially overlaps with the second random access opportunity in the frequency domain;

[0855] A first random access opportunity that completely overlaps with a second random access opportunity in the frequency domain but partially overlaps with the second random access opportunity in the time domain.

[0856] That is, the random access opportunity that meets the first condition is an invalid random access opportunity.

[0857] Optionally, the method further comprises the steps of:

[0858] S3: The terminal device determines a random access opportunity associated with at least one synchronization signal block based on the mapping between the synchronization signal block and the random access opportunity, and sends a preamble code at the random access opportunity associated with at least one synchronization signal block.

[0859] S4: The network device receives the preamble code according to the mapping of the synchronization signal block and the random access opportunity.

[0860] Through the technical solution of this embodiment, the network device sends downlink information, and the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information, thereby optimizing the mapping mechanism of the synchronization signal block and the random access opportunity, and enabling the network device to effectively distinguish the beam direction used by the terminal device performing random access.

[0861] Please refer to Figure 17, which is a schematic diagram of the structure of the processing device provided in the embodiment of the present application. The device can be installed in or is the terminal device in the above method embodiment. As shown in Figure 17, the device 160 includes:

[0862] The determination module 1601 is used to determine the mapping of the synchronization signal block and the random access opportunity based on the downlink information.

[0863] Optionally, the device further comprises:

[0864] Determining a random access opportunity associated with at least one synchronization signal block according to a mapping between the synchronization signal block and the random access opportunity;

[0865] The preamble is sent at a random access opportunity associated with at least one synchronization signal block.

[0866] Optionally, the device further comprises at least one of the following:

[0867] The downlink information includes at least one of a radio resource control message, a media access control message, a system message, and downlink control information;

[0868] The random access opportunity is the first random access opportunity and / or the second random access opportunity;

[0869] The random access opportunity is a valid random access opportunity.

[0870] Optionally, the mapping of synchronization signal blocks and random access opportunities includes at least one of the following:

[0871] When the first random access opportunity and the second random access opportunity do not overlap in the time domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0872] When the first random access opportunity and the second random access opportunity do not overlap in the frequency domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0873] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0874] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is exactly the same as the mapping of the synchronization signal block and the second random access opportunity;

[0875] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0876] When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0877] When the first random access opportunity and the second random access opportunity do not overlap in the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0878] Optionally, the device further comprises at least one of the following:

[0879] The format of the preamble transmitted at the first random access opportunity is the same as the format of the preamble transmitted at the second random access opportunity;

[0880] The format of the preamble transmitted at the first random access opportunity is independent of the format of the preamble transmitted at the second random access opportunity;

[0881] A first root sequence index used to generate the preamble transmitted on the first random access opportunity is the same as a second root sequence index used to generate the preamble transmitted on the second random access opportunity;

[0882] The element values ​​in the first root sequence index set used to generate the preamble transmitted on the first random access opportunity are completely different from the element values ​​in the second root sequence index set used to generate the preamble transmitted on the second random access opportunity;

[0883] The synchronization signal block index mapped to the first random access opportunity is exactly the same as the synchronization signal block index mapped to the second random access opportunity;

[0884] At least one synchronization signal block index mapped to the first random access opportunity is different from at least one synchronization signal block index mapped to the second random access opportunity.

[0885] Optionally, the device further comprises at least one of the following:

[0886] The first random access opportunity is located in the first random access resource;

[0887] The second random access opportunity is located in the second random access resource;

[0888] The first random access opportunity is applicable to four-step random access and / or two-step random access;

[0889] The first root sequence index value is the sum of the second root sequence index value and the first value;

[0890] The value of the first root sequence index is related to the format of the preamble and / or the length of the preamble;

[0891] The order of mapping synchronization signal blocks and random access opportunities is determined, including: first, according to the ascending order of the preamble code index within a random access opportunity; second, according to the ascending order of the frequency domain resource index of the random access opportunity multiplexed in the frequency domain; third, according to the ascending order of the time domain resource index of the random access opportunity multiplexed in the time domain within a random access time slot; fourth, according to the ascending order of the index of the random access time slot.

[0892] Optionally, the valid random access opportunity includes at least one of the following:

[0893] For frequency division duplex or supplementary uplink, all random access opportunities are valid;

[0894] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the random access opportunity in the random access slot is valid;

[0895] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access slot is within a UL symbol, the random access opportunity in the random access slot is valid;

[0896] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, the random access opportunity in the random access time slot is valid;

[0897] For frequency division duplex or supplemental uplink, if the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity is valid;

[0898] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, and the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity in the random access slot is valid;

[0899] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access slot is within a UL symbol, and the first random access opportunity is not a random access opportunity that satisfies the first condition, then the first random access opportunity in the random access slot is valid;

[0900] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gapsymbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, and the first random access opportunity is not a random access opportunity that meets the first condition, then the first random access opportunity in the random access slot is valid.

[0901] Optionally, the random access opportunity that meets the first condition includes at least one of the following:

[0902] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, all first random access opportunities in a random access slot that are located at the same symbol position as the first random access opportunity;

[0903] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0904] When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0905] a first random access opportunity that completely overlaps with the second random access opportunity in both the time domain and the frequency domain;

[0906] a first random access opportunity that completely overlaps with the second random access opportunity in the time domain but partially overlaps with the second random access opportunity in the frequency domain;

[0907] A first random access opportunity that completely overlaps with a second random access opportunity in the frequency domain but partially overlaps with the second random access opportunity in the time domain.

[0908] Optionally, the terminal device determines, based on the downlink information, a mapping between a synchronization signal block and a random access opportunity, including at least one of the following:

[0909] Determining a mapping between a synchronization signal block and a first random access opportunity according to the downlink information;

[0910] Determine a mapping between a synchronization signal block and a second random access opportunity according to the downlink information;

[0911] Determine the number of synchronization signal blocks and the index of the synchronization signal block according to the downlink information;

[0912] Determine, according to the downlink information, a radio frame, a subframe, and / or a timeslot position where a first random access opportunity in the first random access resource is located;

[0913] Determine, according to the downlink information, a frequency domain starting RB position of a first random access opportunity in the first random access resource on the activated bandwidth;

[0914] determining, according to the downlink information, the number of random access opportunities for frequency domain multiplexing of the first random access opportunity in the first random access resource at one time instance;

[0915] Determine, according to the downlink information, a radio frame, a subframe, and a timeslot position of a second random access opportunity in the second random access resource;

[0916] Determine, according to the downlink information, a frequency domain starting RB position of a second random access opportunity in the second random access resource on the activated bandwidth;

[0917] The number of random access opportunities for frequency domain multiplexing of the second random access opportunity in the second random access resource at one time instance is determined according to the downlink information.

[0918] The processing device provided in the embodiment of the present application has similar implementation principles and beneficial effects to the technical solutions shown in the above-mentioned corresponding method embodiments, and will not be described in detail here.

[0919] Please refer to Figure 18, which is a second structural diagram of a processing device provided in an embodiment of the present application. The device can be installed in or is the network device in the above method embodiment. As shown in Figure 18, the device 170 includes:

[0920] The sending module 1701 is used to send downlink information so that the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information.

[0921] Optionally, the device also includes: receiving a preamble code according to a mapping of a synchronization signal block and a random access opportunity.

[0922] Optionally, the device further comprises at least one of the following:

[0923] The downlink information includes at least one of a radio resource control message, a media access control message, a system message, and downlink control information;

[0924] The random access opportunity is the first random access opportunity and / or the second random access opportunity;

[0925] The random access opportunity is a valid random access opportunity.

[0926] Optionally, the mapping of synchronization signal blocks and random access opportunities includes at least one of the following:

[0927] When the first random access opportunity and the second random access opportunity do not overlap in the time domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0928] When the first random access opportunity and the second random access opportunity do not overlap in the frequency domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0929] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0930] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is exactly the same as the mapping of the synchronization signal block and the second random access opportunity;

[0931] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0932] When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity;

[0933] When the first random access opportunity and the second random access opportunity do not overlap in the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

[0934] Optionally, the method further comprises at least one of the following:

[0935] The format of the preamble transmitted at the first random access opportunity is the same as the format of the preamble transmitted at the second random access opportunity;

[0936] The format of the preamble transmitted at the first random access opportunity is independent of the format of the preamble transmitted at the second random access opportunity;

[0937] A first root sequence index used to generate the preamble transmitted on the first random access opportunity is the same as a second root sequence index used to generate the preamble transmitted on the second random access opportunity;

[0938] The element values ​​in the first root sequence index set used to generate the preamble transmitted on the first random access opportunity are completely different from the element values ​​in the second root sequence index set used to generate the preamble transmitted on the second random access opportunity;

[0939] The synchronization signal block index mapped to the first random access opportunity is exactly the same as the synchronization signal block index mapped to the second random access opportunity;

[0940] At least one synchronization signal block index mapped to the first random access opportunity is different from at least one synchronization signal block index mapped to the second random access opportunity.

[0941] Optionally, the device further comprises at least one of the following:

[0942] The first random access opportunity is located in the first random access resource;

[0943] The second random access opportunity is located in the second random access resource;

[0944] The first random access opportunity is applicable to four-step random access and / or two-step random access;

[0945] The first root sequence index value is the sum of the second root sequence index value and the first value;

[0946] The value of the first root sequence index is related to the format of the preamble and / or the length of the preamble;

[0947] Determining the order of mapping synchronization signal blocks and random access opportunities, including:

[0948] First, in ascending order of preamble index within a random access opportunity;

[0949] Second, in ascending order of frequency domain resource indexes of random access opportunities multiplexed in the frequency domain;

[0950] Third, in ascending order of time domain resource indexes of random access opportunities time domain multiplexed within a random access time slot;

[0951] Fourth, in the order of increasing random access slot index.

[0952] Optionally, the valid random access opportunity includes at least one of the following:

[0953] For frequency division duplex or supplementary uplink, all random access opportunities are valid;

[0954] For time division duplex, if the time division duplex uplink and downlink common configuration is not provided to the terminal equipment, and if the random access opportunity in a random access time slot does not precede the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the random access opportunity in the random access slot is valid;

[0955] For frequency division duplex, if a common configuration of time division duplex uplink and downlink is provided to the terminal equipment, and if the random access opportunity in a random access slot is within a UL symbol, the random access opportunity in the random access slot is valid;

[0956] For time division duplex, if the terminal equipment is provided with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access slot does not precede the synchronization signal block of the random access slot, the random access opportunity is at least N after the last synchronization signal block symbol of the random access slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, the random access opportunity in the random access time slot is valid;

[0957] For frequency division duplex or supplemental uplink, if the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity is valid;

[0958] For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, and the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity in the random access slot is valid;

[0959] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access slot is within a UL symbol, and the first random access opportunity is not a random access opportunity that satisfies the first condition, then the first random access opportunity in the random access slot is valid;

[0960] For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gapsymbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, and the first random access opportunity is not a random access opportunity that meets the first condition, then the first random access opportunity in the random access slot is valid.

[0961] Optionally, the random access opportunity that meets the first condition includes at least one of the following:

[0962] When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, all first random access opportunities in a random access slot that are located at the same symbol position as the first random access opportunity;

[0963] When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0964] When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity;

[0965] a first random access opportunity that completely overlaps with the second random access opportunity in both the time domain and the frequency domain;

[0966] a first random access opportunity that completely overlaps with the second random access opportunity in the time domain but partially overlaps with the second random access opportunity in the frequency domain;

[0967] A first random access opportunity that completely overlaps with a second random access opportunity in the frequency domain but partially overlaps with the second random access opportunity in the time domain.

[0968] Optionally, the terminal device determines, based on the downlink information, a mapping between a synchronization signal block and a random access opportunity, including at least one of the following:

[0969] The terminal device determines, according to the downlink information, a mapping between a synchronization signal block and a first random access opportunity;

[0970] The terminal device determines the mapping of the synchronization signal block and the second random access opportunity according to the downlink information;

[0971] The terminal device determines the number of synchronization signal blocks and the index of the synchronization signal block according to the downlink information;

[0972] The terminal device determines, according to the downlink information, a radio frame, a subframe and / or a time slot position where the first random access opportunity in the first random access resource is located;

[0973] The terminal device determines, according to the downlink information, a frequency domain starting RB position of a first random access opportunity in the first random access resource on the activation bandwidth;

[0974] The terminal device determines, according to the downlink information, the number of random access opportunities for frequency domain multiplexing of the first random access opportunity in the first random access resource at one time instance;

[0975] The terminal device determines, according to the downlink information, a radio frame, a subframe, and a time slot position where a second random access opportunity in the second random access resource is located;

[0976] The terminal device determines, according to the downlink information, a frequency domain starting RB position of a second random access opportunity in the second random access resource on the activated bandwidth;

[0977] The terminal device determines the number of random access opportunities for frequency domain multiplexing of the second random access opportunity in the second random access resource at a time instance based on the downlink information.

[0978] The processing device provided in the embodiment of the present application has similar implementation principles and beneficial effects to the technical solutions shown in the above-mentioned corresponding method embodiments, and will not be described in detail here.

[0979] Refer to Figure 19, which is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. As shown in Figure 19, the communication device 180 described in this embodiment can be the terminal device (or component that can be used for a terminal device) or network device (or component that can be used for a network device) mentioned in the aforementioned method embodiment. Communication device 180 can be used to implement the methods corresponding to the terminal device or network device described in the aforementioned method embodiment. For details, please refer to the description of the aforementioned method embodiment.

[0980] The communication device 180 may include one or more processors 1801, also referred to as processing units, which may implement certain control or processing functions. Processor 1801 may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, while the central processing unit may be used to control the communication device, execute software programs, and process software program data.

[0981] Optionally, the processor 1801 may also store instructions 1803 or data (eg, intermediate data). Optionally, the instructions 1803 may be executed by the processor 1801, so that the communication device 180 executes the method corresponding to the terminal device or network device described in the above method embodiment.

[0982] Optionally, the communication device 180 may include a circuit that can implement the functions of sending, receiving, or communicating in the aforementioned method embodiments.

[0983] Optionally, the communication device 180 may include one or more memories 1802 , on which instructions 1804 may be stored. The instructions may be executed on the processor 1801 , so that the communication device 180 performs the method described in the above method embodiment.

[0984] Optionally, data may also be stored in the memory 1802. The processor 1801 and the memory 1802 may be provided separately or integrated together.

[0985] Optionally, the communication device 180 may further include a transceiver 1805 and / or an antenna 1806. The processor 1801 may be referred to as a processing unit, and controls the communication device 180 (terminal device, core network device, or wireless access network device). The transceiver 1805 may be referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver, and is used to implement the transceiver functions of the communication device 180.

[0986] Optionally, if the communication device 180 is used to implement operations corresponding to the terminal device in the above embodiments, for example, the transceiver 1805 can receive downlink information; and the processor 1801 can determine the mapping of the synchronization signal block and the random access opportunity based on the downlink information.

[0987] Optionally, the specific implementation process of the processor 1801 and the transceiver 1805 can be found in the relevant descriptions of the above embodiments, and will not be repeated here.

[0988] Optionally, if the communication device 180 is used to implement operations corresponding to the network devices in the above...

Claims

1. A processing method, wherein: Applied to terminal equipment, including the steps of: S2: Determine the mapping of synchronization signal blocks and random access opportunities based on downlink information.

2. The method according to claim 1, wherein: Also includes: Determine a random access opportunity associated with at least one synchronization signal block according to a mapping between the synchronization signal block and the random access opportunity; The preamble is sent at a random access opportunity associated with at least one synchronization signal block.

3. The method according to claim 1, wherein: Also includes at least one of the following: The downlink information includes at least one of a radio resource control message, a media access control message, a system message, and downlink control information; The random access opportunity is the first random access opportunity and / or the second random access opportunity; The random access opportunity is a valid random access opportunity.

4. The method according to claim 3, wherein: The mapping of synchronization signal blocks and random access opportunities includes at least one of the following: When the first random access opportunity and the second random access opportunity do not overlap in the time domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity; When the first random access opportunity and the second random access opportunity do not overlap in the frequency domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity; When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity; When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is exactly the same as the mapping of the synchronization signal block and the second random access opportunity; When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity; When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity; When the first random access opportunity and the second random access opportunity do not overlap in the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

5. The method according to claim 4, wherein: Also includes at least one of the following: The format of the preamble transmitted at the first random access opportunity is the same as the format of the preamble transmitted at the second random access opportunity; The format of the preamble transmitted at the first random access opportunity is independent of the format of the preamble transmitted at the second random access opportunity; A first root sequence index used to generate a preamble transmitted at the first random access opportunity is the same as a second root sequence index used to generate a preamble transmitted at the second random access opportunity; The element values ​​in the first root sequence index set used to generate the preamble transmitted at the first random access opportunity are completely different from the element values ​​in the second root sequence index set used to generate the preamble transmitted at the second random access opportunity; The synchronization signal block index mapped to the first random access opportunity is exactly the same as the synchronization signal block index mapped to the second random access opportunity; At least one synchronization signal block index mapped to the first random access opportunity is different from at least one synchronization signal block index mapped to the second random access opportunity.

6. The method according to claim 5, wherein: Also includes at least one of the following: The first random access opportunity is located in the first random access resource; The second random access opportunity is located in the second random access resource; The first random access opportunity is applicable to four-step random access and / or two-step random access; The first root sequence index value is the sum of the second root sequence index value and the first value; The value of the first root sequence index is related to the format of the preamble code and / or the length of the preamble code; The order of mapping synchronization signal blocks and random access opportunities includes: First, in ascending order of preamble index within a random access opportunity; Second, in ascending order of frequency domain resource indexes of random access opportunities multiplexed in the frequency domain; Third, in ascending order of time domain resource indexes of random access opportunities of time domain multiplexing within a random access time slot; Fourth, in the order of increasing random access slot index.

7. The method according to claim 3, wherein: A valid random access opportunity includes at least one of the following: For frequency division duplex or supplementary uplink, all random access opportunities are valid; For time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the random access opportunity in the random access time slot is valid; For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access slot is within a UL symbol, the random access opportunity in the random access slot is valid; For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, the random access opportunity in the random access time slot is valid; For frequency division duplex or supplementary uplink, if the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity is valid; for time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, and the first random access opportunity is not a random access opportunity that satisfies the first condition, then the first random access opportunity in the random access time slot is valid; For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access slot is within a UL symbol, and the first random access opportunity is not a random access opportunity that satisfies the first condition, then the first random access opportunity in the random access slot is valid; For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N times after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, and the first random access opportunity is not a random access opportunity that satisfies the first condition, then the first random access opportunity in the random access slot is valid.

8. The method according to claim 7, wherein: The random access opportunity that meets the first condition includes at least one of the following: When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, all first random access opportunities in a random access slot that are located at the same symbol position as the first random access opportunity; When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity; When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity; A first random access opportunity that completely overlaps with a second random access opportunity in both the time domain and the frequency domain; A first random access opportunity that completely overlaps with the second random access opportunity in the time domain but partially overlaps with the second random access opportunity in the frequency domain; A first random access opportunity that completely overlaps with a second random access opportunity in the frequency domain but partially overlaps with the second random access opportunity in the time domain.

9. The method according to claim 3, wherein: Step S2 includes at least one of the following: Determine a mapping between a synchronization signal block and a first random access opportunity according to the downlink information; Determine mapping of a synchronization signal block and a second random access opportunity according to the downlink information; Determine the number of synchronization signal blocks and the index of the synchronization signal block according to the downlink information; Determine, according to the downlink information, a radio frame, a subframe and / or a timeslot position where a first random access opportunity in the first random access resource is located; Determine, according to the downlink information, a frequency domain starting RB position of a first random access opportunity in the first random access resource on the activated bandwidth; Determine, according to the downlink information, the number of random access opportunities for frequency domain multiplexing of the first random access opportunity in the first random access resource at one time instance; Determine, according to the downlink information, a radio frame, a subframe, and a time slot position where a second random access opportunity in the second random access resource is located; Determine, according to the downlink information, a frequency domain starting RB position of a second random access opportunity in the second random access resource on the activated bandwidth; The number of random access opportunities for frequency domain multiplexing of the second random access opportunities in the second random access resource at one time instance is determined according to the downlink information.

10. A processing method, wherein: Applied to network equipment, including the steps of: S1: Send downlink information so that the terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information.

11. The method according to claim 10, wherein: Also includes: The preamble code is received according to the mapping of the synchronization signal block and the random access opportunity.

12. The method according to claim 10, wherein: Also includes at least one of the following: The downlink information includes at least one of a radio resource control message, a media access control message, a system message, and downlink control information; The random access opportunity is the first random access opportunity and / or the second random access opportunity; The random access opportunity is a valid random access opportunity.

13. The method according to claim 12, wherein: The mapping of synchronization signal blocks and random access opportunities includes at least one of the following: When the first random access opportunity and the second random access opportunity do not overlap in the time domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity; When the first random access opportunity and the second random access opportunity do not overlap in the frequency domain, but the first random access opportunity and the second random access opportunity completely or partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity; When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity; When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is exactly the same as the mapping of the synchronization signal block and the second random access opportunity; When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity; When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity; When the first random access opportunity and the second random access opportunity do not overlap in the time domain and the frequency domain, the mapping of the synchronization signal block and the first random access opportunity is independent of the mapping of the synchronization signal block and the second random access opportunity.

14. The method according to claim 13, wherein: Also includes at least one of the following: The format of the preamble transmitted at the first random access opportunity is the same as the format of the preamble transmitted at the second random access opportunity; The format of the preamble transmitted at the first random access opportunity is independent of the format of the preamble transmitted at the second random access opportunity; A first root sequence index used to generate a preamble transmitted at the first random access opportunity is the same as a second root sequence index used to generate a preamble transmitted at the second random access opportunity; The element values ​​in the first root sequence index set used to generate the preamble transmitted at the first random access opportunity are completely different from the element values ​​in the second root sequence index set used to generate the preamble transmitted at the second random access opportunity; The synchronization signal block index mapped to the first random access opportunity is exactly the same as the synchronization signal block index mapped to the second random access opportunity; At least one synchronization signal block index mapped to the first random access opportunity is different from at least one synchronization signal block index mapped to the second random access opportunity.

15. The method according to claim 14, wherein: Also includes at least one of the following: The first random access opportunity is located in the first random access resource; The second random access opportunity is located in the second random access resource; The first random access opportunity is applicable to four-step random access and / or two-step random access; The first root sequence index value is the sum of the second root sequence index value and the first value; The value of the first root sequence index is related to the format of the preamble code and / or the length of the preamble code; The order of mapping synchronization signal blocks and random access opportunities includes: First, in ascending order of preamble index within a random access opportunity; Second, in ascending order of frequency domain resource indexes of random access opportunities multiplexed in the frequency domain; Third, in ascending order of time domain resource indexes of random access opportunities of time domain multiplexing within a random access time slot; Fourth, in the order of increasing random access slot index.

16. The method according to claim 12, wherein: Valid random access opportunities include at least one of the following: For frequency division duplex or supplementary uplink, all random access opportunities are valid; For time division duplex, if the time division duplex uplink and downlink common configuration is not provided to the terminal equipment, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, the random access opportunity in the random access time slot is valid; For frequency division duplex, if a common configuration of time division duplex uplink and downlink is provided to the terminal equipment, and if the random access opportunity in a random access slot is within a UL symbol, the random access opportunity in the random access slot is valid; For time division duplex, if the time division duplex uplink and downlink common configuration is provided to the terminal equipment, and if the random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the random access opportunity is at least N after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, the random access opportunity in the random access time slot is valid; For frequency division duplex or supplementary uplink, if the first random access opportunity is not a random access opportunity that satisfies the first condition, the first random access opportunity is valid; for time division duplex, if the network device does not provide the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N after the last symbol received in the synchronization signal block of the random access time slot. gap symbols later, and the first random access opportunity is not a random access opportunity that satisfies the first condition, then the first random access opportunity in the random access time slot is valid; For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access slot is within a UL symbol, and the first random access opportunity is not a random access opportunity that satisfies the first condition, then the first random access opportunity in the random access slot is valid; For time division duplex, if the network device provides the terminal device with a time division duplex uplink and downlink common configuration, and if the first random access opportunity in a random access time slot is not before the synchronization signal block of the random access time slot, the first random access opportunity is at least N times after the last synchronization signal block symbol of the random access time slot. gap symbols and at least N of the last downlink symbols of the random access opportunity gap symbols later, and the first random access opportunity is not a random access opportunity that satisfies the first condition, then the first random access opportunity in the random access slot is valid.

17. The method according to claim 16, wherein: The random access opportunity that meets the first condition includes at least one of the following: When the first random access opportunity and the second random access opportunity completely overlap in both the time domain and the frequency domain, all first random access opportunities in a random access slot that are located at the same symbol position as the first random access opportunity; When the first random access opportunity and the second random access opportunity completely overlap in the time domain, but the first random access opportunity and the second random access opportunity partially overlap in the frequency domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity; When the first random access opportunity and the second random access opportunity completely overlap in the frequency domain, but the first random access opportunity and the second random access opportunity partially overlap in the time domain, all first random access opportunities in one random access slot that are located at the same symbol position as the first random access opportunity; A first random access opportunity that completely overlaps with a second random access opportunity in both the time domain and the frequency domain; A first random access opportunity that completely overlaps with the second random access opportunity in the time domain but partially overlaps with the second random access opportunity in the frequency domain; A first random access opportunity that completely overlaps with a second random access opportunity in the frequency domain but partially overlaps with the second random access opportunity in the time domain.

18. The method according to claim 13, wherein: The terminal device determines the mapping of the synchronization signal block and the random access opportunity based on the downlink information, including at least one of the following: The terminal device determines the mapping of the synchronization signal block and the first random access opportunity according to the downlink information; The terminal device determines the mapping of the synchronization signal block and the second random access opportunity according to the downlink information; The terminal device determines the number of synchronization signal blocks and the index of the synchronization signal block according to the downlink information; The terminal device determines the radio frame, subframe and / or time slot position where the first random access opportunity in the first random access resource is located according to the downlink information; The terminal device determines, according to the downlink information, a frequency domain starting RB position of a first random access opportunity in the first random access resource on the activation bandwidth; The terminal device determines, according to the downlink information, the number of random access opportunities for frequency domain multiplexing of the first random access opportunity in the first random access resource at one time instance; The terminal device determines the radio frame, subframe and time slot position where the second random access opportunity in the second random access resource is located according to the downlink information; The terminal device determines, according to the downlink information, a frequency domain starting RB position of a second random access opportunity in the second random access resource on the activated bandwidth; The terminal device determines the number of random access opportunities for frequency domain multiplexing of the second random access opportunities in the second random access resource at a time instance based on the downlink information.

19. A communication device, wherein: include: A memory and a processor, wherein a processing program is stored in the memory, and when the processing program is executed by the processor, the processing method according to claim 1 or 10 is implemented.

20. A computer-readable storage medium, wherein: The computer-readable storage medium stores a processing program, and when the processing program is executed by a processor, the processing method according to claim 1 or 10 is implemented.

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