Communication method, terminal, network device, communication system, computer program product and storage medium

Abstract

Embodiments of the present disclosure provide a communication method, a terminal, a network device, a communication system, a computer program product and a storage medium. The method comprises: receiving at least one piece of random access channel (RACH) resource configuration information sent by a network device, the RACH resource configuration information being used for determining a RACH occasion (RO); and receiving first information sent by the network device, wherein the first information is used for at least one of the following: activating the RACH resource configuration information; and deactivating the RACH resource configuration information. The technical solution provided in the embodiments of the present disclosure can enable rational use of RACH resources.

Description

Communication methods, terminals, network equipment, communication systems, computer program products and storage media Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a communication method, terminal, network device, communication system, computer program product, and storage medium. Background Technology

[0002] In the field of communication technology, the future sixth-generation mobile network (6G, 6 th Generation Mobile Networks (GMN) technology is geared towards smart IoT and the Internet of Things (IoT), supporting massive numbers of connections. This will introduce a large number of IoT devices, posing challenges to Random Access Channel (RACH) resources and capacity.

[0003] Summary of the Invention

[0004] With the introduction of a large number of IoT devices, it is necessary to consider the rational use of RACH resources.

[0005] According to a first aspect of the present disclosure, a communication method is provided, the method being executed by a terminal, the method comprising:

[0006] Receive at least one Random Access Channel (RACH) resource configuration information sent by a network device, wherein the RACH resource configuration information is used to determine the RACH timing (RO).

[0007] Receive first information sent by the network device, wherein the first information is used for at least one of the following:

[0008] Activate the RACH resource configuration information;

[0009] Deactivate the RACH resource configuration information.

[0010] According to a second aspect of the present disclosure, a communication method is provided, the method being performed by a network device, the method comprising:

[0011] Send at least one random access channel (RACH) resource configuration information to the terminal, wherein the RACH resource configuration information is used to determine the RACH timing (RO);

[0012] Send first information to the terminal, wherein the first information is used for at least one of the following:

[0013] Activate the RACH resource configuration information;

[0014] Deactivate the RACH resource configuration information.

[0015] According to a third aspect of the present disclosure, a communication method is provided, the method comprising:

[0016] The network device sends at least one random access channel (RACH) resource configuration information to the terminal, the RACH resource configuration information being used to determine the RACH timing (RO).

[0017] The network device sends first information to the terminal, wherein the first information is used for at least one of the following:

[0018] Activate the RACH resource configuration information;

[0019] Deactivate the RACH resource configuration information.

[0020] According to a fourth aspect of the present disclosure, a terminal is provided, the terminal comprising:

[0021] The transceiver module is configured as follows:

[0022] Receive at least one Random Access Channel (RACH) resource configuration information sent by a network device, wherein the RACH resource configuration information is used to determine the RACH timing (RO).

[0023] Receive first information sent by the network device, wherein the first information is used for at least one of the following:

[0024] Activate the RACH resource configuration information;

[0025] Deactivate the RACH resource configuration information.

[0026] According to a fifth aspect of the present disclosure, a network device is provided, the network device comprising:

[0027] The transceiver module is configured as follows:

[0028] Send at least one random access channel (RACH) resource configuration information to the terminal, wherein the RACH resource configuration information is used to determine the RACH timing (RO);

[0029] Send first information to the terminal, wherein the first information is used for at least one of the following:

[0030] Activate the RACH resource configuration information;

[0031] Deactivate the RACH resource configuration information.

[0032] According to a sixth aspect of the present disclosure, a communication system is provided, wherein the communication system includes a terminal and a network device; the terminal is configured to implement the method of the first aspect, and the network device is configured to implement the method of the second aspect.

[0033] According to a seventh aspect of the present disclosure, a terminal is provided, the terminal comprising:

[0034] One or more processors;

[0035] The terminal is used to execute the method described in the first aspect.

[0036] According to an eighth aspect of the present disclosure, a network device is provided, the network device comprising:

[0037] One or more processors;

[0038] The network device is used to perform the method described in the second aspect.

[0039] According to a ninth aspect of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions that, when executed on a communication device, cause the communication device to perform the methods provided in the first aspect and / or the second aspect.

[0040] The technical solutions provided in this disclosure can make reasonable use of RACH resources.

[0041] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the embodiments of this disclosure. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0043] Figure 1a is a schematic diagram of a communication system architecture according to an exemplary embodiment;

[0044] Figure 1b is a schematic diagram of an SBFD according to an exemplary embodiment;

[0045] Figure 1c is a schematic diagram illustrating a random access procedure according to an exemplary embodiment;

[0046] Figure 2a is a schematic diagram of a communication method flow according to an exemplary embodiment;

[0047] Figure 2b is a schematic diagram illustrating a RACH configuration according to an exemplary embodiment;

[0048] Figure 2c is a schematic diagram of signaling according to an exemplary embodiment;

[0049] Figure 3a is a schematic diagram of a communication method flow according to an exemplary embodiment;

[0050] Figure 3b is a schematic diagram of a communication method flow according to an exemplary embodiment;

[0051] Figure 4a is a schematic diagram of a communication method flow according to an exemplary embodiment;

[0052] Figure 4b is a schematic diagram of a communication method flow according to an exemplary embodiment;

[0053] Figure 5a is a schematic diagram of a communication method flow according to an exemplary embodiment;

[0054] Figure 6a is a schematic diagram of the structure of a terminal according to an exemplary embodiment;

[0055] Figure 6b is a schematic diagram of the structure of a network device according to an exemplary embodiment;

[0056] Figure 7a is a schematic diagram of the structure of a UE according to an exemplary embodiment;

[0057] Figure 7b is a schematic diagram of the structure of a communication device according to an exemplary embodiment. Detailed Implementation

[0058] This disclosure provides a communication method, a terminal, a network device, a communication system, a computer program product, and a storage medium.

[0059] In a first aspect, embodiments of this disclosure provide a communication method, the method being executed by a terminal, the method comprising:

[0060] Receive at least one Random Access Channel (RACH) resource configuration information sent by a network device, wherein the RACH resource configuration information is used to determine the RACH timing (RO).

[0061] Receive first information sent by the network device, wherein the first information is used for at least one of the following:

[0062] Activate the RACH resource configuration information;

[0063] Deactivate the RACH resource configuration information.

[0064] In the above embodiments, after receiving the first information sent by the network device, the terminal can flexibly activate and / or deactivate the RACH resource configuration information based on the first information, so that the use of the RACH resource configuration information can adapt to the needs of the network side and reduce the waste of RACH resources.

[0065] In conjunction with some embodiments of the first aspect, in some embodiments, different RACH resource configuration information is associated with different indexes, wherein the indexes are used to indicate the RACH resource configuration information.

[0066] In the above embodiments, different indexes can be used to indicate different RACH resource configuration information, making the indication method more flexible.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, the first information is used to indicate a first set, the first set comprising one of the following:

[0068] Configuration information for at least two RACH resources to be activated;

[0069] Configuration information for at least two RACH resources to be deactivated.

[0070] In the above embodiments, the first set can be used to enable the first information to indicate at least two RACH resource configuration information to be activated and / or at least two RACH resource configuration information to be deactivated.

[0071] In conjunction with some embodiments of the first aspect, in some embodiments, each of the RACH resource configuration information is associated with different second information or at least two of the RACH resource information are associated with the same second information; wherein, the second information is configuration information for configuring at least one preamble.

[0072] In the above embodiments, since each RACH resource configuration information can be associated with different second information or at least two RACH resource information can be associated with the same second information, the association method is more flexible.

[0073] In conjunction with some embodiments of the first aspect, in some embodiments, the RACH resource configuration information is divided into different groups, and the method includes:

[0074] If the RACH resource configuration information used in two consecutive random access operations belongs to different packets, the first operation is performed.

[0075] The group contains at least two RACH resource configuration information, and the first operation is used to perform power ramping.

[0076] In the above embodiments, if the RACH resource configuration information used in two adjacent random access operations belongs to the same or different groups, the first operation is adaptively executed, making the implementation more flexible.

[0077] In conjunction with some embodiments of the first aspect, in some embodiments, the RACH resource configuration information is divided into different groups, and the random access response (RAR) search spaces associated with different groups are different, and the group contains at least two of the RACH resource configuration information.

[0078] In the above embodiments, the random access response (RAR) search space associated with different groups is different, making the configuration more flexible.

[0079] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes one of the following:

[0080] Randomly select the first RACH resource configuration information;

[0081] The first RACH resource configuration information is selected based on the second information, which includes at least one of the following: the size of the random access message; the type of terminal; the power level used by the terminal; the mobility state of the terminal; and the service type.

[0082] First RACH resource configuration information is selected based on third information, wherein the third information indicates priority and the priority is associated with at least one RACH resource configuration information.

[0083] The first RACH resource configuration information is the RACH resource configuration information used during the random access process.

[0084] In the above embodiments, the first RACH resource configuration information can be selected based on different methods, making the implementation more flexible.

[0085] In conjunction with some embodiments of the first aspect, in some embodiments, the first message carries the first information; the first message includes a first information field and / or a second information field; the first information field is used to indicate that the subheader of the first message carries information for activating or deactivating the RACH resource configuration information, or the first information field is used to indicate that the subheader of the first message does not carry information for activating or deactivating the RACH resource configuration information; the second information field is used to indicate the index of the activated or deactivated RACH resource configuration information.

[0086] In the above embodiments, the first information can be indicated by different information fields of the first message, which is more accurate and reliable.

[0087] In conjunction with some embodiments of the first aspect, in some embodiments, the activated or deactivated RACH resource configuration information is at least two; the second information field is used to indicate the at least two activated or deactivated RACH resource configuration information based on the size order of the index.

[0088] In the above embodiments, the second information field is used to indicate the configuration information of the at least two activated or deactivated RACH resources based on the size order of the index, which makes the indication method more flexible.

[0089] In conjunction with some embodiments of the first aspect, in some embodiments, the first message is a Media Access Control (MAC) Control Element (CE) or a Random Access Response (RAR) Protocol Data Unit (PDU); the MAC CE is one of the following: a commonly configured MAC CE; or a separately configured MAC CE.

[0090] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes at least one of the following:

[0091] Determine whether the random access was successful or failed, then proceed to the second step;

[0092] Based on the first instance, execute the second operation;

[0093] Wherein, the first time is used to indicate the time when the activated or deactivated RACH resource configuration information becomes invalid; the second operation is used to invalidate the activated or deactivated RACH resource configuration information.

[0094] In the above embodiments, the second operation can be performed in different ways, making the implementation more flexible.

[0095] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0096] Receive the fourth message sent by the network device;

[0097] The fourth information is used to update the number of activated RACH resource configuration information.

[0098] In the above embodiments, the number of activated RACH resource configuration information can be updated in real time through the fourth information.

[0099] In the above embodiments, the first RACH resource configuration information can be updated at different times, making the implementation more flexible.

[0100] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0101] Once the first RACH resource configuration information is confirmed to be updated and the RAR sent by the network device is received, the backoff indication BI information is ignored.

[0102] The first RACH resource configuration information is the RACH resource configuration information used during the random access process.

[0103] In the above embodiments, when updating the first RACH resource configuration information, the BI information can be ignored.

[0104] Secondly, embodiments of this disclosure provide a communication method, the method being executed by a network device, the method comprising:

[0105] Send at least one random access channel (RACH) resource configuration information to the terminal, wherein the RACH resource configuration information is used to determine the RACH timing (RO);

[0106] Send first information to the terminal, wherein the first information is used for at least one of the following:

[0107] Activate the RACH resource configuration information;

[0108] Deactivate the RACH resource configuration information.

[0109] In conjunction with some embodiments of the second aspect, in some embodiments, different RACH resource configuration information is associated with different indexes, wherein the indexes are used to indicate the RACH resource configuration information.

[0110] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is used to indicate a first set, the first set comprising one of the following:

[0111] Configuration information for at least two RACH resources to be activated;

[0112] Configuration information for at least two RACH resources to be deactivated.

[0113] In conjunction with some embodiments of the second aspect, in some embodiments, each of the RACH resource configuration information is associated with different second information or at least two of the RACH resource information are associated with the same second information; wherein, the second information is configuration information for configuring at least one preamble.

[0114] In conjunction with some embodiments of the second aspect, in some embodiments, the RACH resource configuration information is divided into different groups, and the random access response (RAR) search spaces associated with different groups are different, and the group contains at least two RACH resource configuration information.

[0115] In conjunction with some embodiments of the second aspect, in some embodiments, the first message carries the first information; the first message includes a first information field and / or a second information field; the first information field is used to indicate that the subheader of the first message carries information for activating or deactivating the RACH resource configuration information, or the first information field is used to indicate that the subheader of the first message does not carry information for activating or deactivating the RACH resource configuration information; the second information field is used to indicate the index of the activated or deactivated RACH resource configuration information.

[0116] In conjunction with some embodiments of the second aspect, in some embodiments, the activated or deactivated RACH resource configuration information is at least two; the second information field is used to indicate the at least two activated or deactivated RACH resource configuration information based on the size order of the index.

[0117] In conjunction with some embodiments of the second aspect, in some embodiments, the first message is a Media Access Control (MAC) Control Element (CE) or a Random Access Response (RAR) Protocol Data Unit (PDU); the MAC CE is one of the following: a commonly configured MAC CE; or a separately configured MAC CE.

[0118] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0119] Send the fourth message to the terminal;

[0120] The fourth information is used to update the number of activated RACH resource configuration information.

[0121] Thirdly, embodiments of this disclosure provide a communication method, the method comprising:

[0122] The network device sends at least one random access channel (RACH) resource configuration information to the terminal, the RACH resource configuration information being used to determine the RACH timing (RO).

[0123] The network device sends first information to the terminal, wherein the first information is used for at least one of the following:

[0124] Activate the RACH resource configuration information;

[0125] Deactivate the RACH resource configuration information.

[0126] Fourthly, embodiments of this disclosure provide a terminal, the terminal comprising:

[0127] The transceiver module is configured as follows:

[0128] Receive at least one Random Access Channel (RACH) resource configuration information sent by a network device, wherein the RACH resource configuration information is used to determine the RACH timing (RO).

[0129] Receive first information sent by the network device, wherein the first information is used for at least one of the following:

[0130] Activate the RACH resource configuration information;

[0131] Deactivate the RACH resource configuration information.

[0132] Fifthly, embodiments of this disclosure provide a network device, the network device comprising:

[0133] The transceiver module is configured as follows:

[0134] Send at least one random access channel (RACH) resource configuration information to the terminal, wherein the RACH resource configuration information is used to determine the RACH timing (RO);

[0135] Send first information to the terminal, wherein the first information is used for at least one of the following:

[0136] Activate the RACH resource configuration information;

[0137] Deactivate the RACH resource configuration information.

[0138] In a sixth aspect, embodiments of this disclosure provide a communication system including a terminal and a network device; the terminal is configured to implement the method described in the first aspect, and the network device is configured to implement the method described in the second aspect.

[0139] In a seventh aspect, embodiments of this disclosure provide a terminal, the terminal comprising:

[0140] One or more processors;

[0141] The terminal is used to execute the method provided in the first aspect.

[0142] Eighthly, embodiments of this disclosure provide a network device, the network device comprising:

[0143] One or more processors;

[0144] The network device is used to execute the method provided in the second aspect.

[0145] Ninthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in the optional implementations of the first and / or second aspects.

[0146] In a tenth aspect, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in the optional implementations of the first and / or second aspects.

[0147] Eleventhly, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in optional implementations of the first and / or second aspects.

[0148] In a twelfth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described according to optional implementations of the first and / or second aspects above.

[0149] It is understood that the aforementioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0150] This disclosure provides a communication method, a terminal, a communication system, and a storage medium. In some embodiments, the terms "communication method" and "information indication method," "information processing method," and "information transmission method" can be used interchangeably, as can the terms "communication system" and "information processing system."

[0151] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0152] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0153] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0154] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0155] In the embodiments disclosed herein, "multiple" refers to two or more.

[0156] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0157] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0158] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0159] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0160] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0161] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0162] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0163] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0164] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0165] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)."

[0166] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc.

[0167] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0168] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0169] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0170] Figure 1a is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0171] As shown in Figure 1a, the communication system 100 includes a terminal 101 and a network device 102.

[0172] In some embodiments, network device 102 may include at least one of access network device 1021 and core network device 1022.

[0173] In some embodiments, the terminal includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0174] In some embodiments, the access network device may be a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0175] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0176] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0177] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a Next Generation Core (NGC).

[0178] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions provided in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in this disclosure are also applicable to similar technical problems.

[0179] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1a, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1a are illustrative. The communication system may include all or some of the main bodies in FIG1a, or it may include other main bodies outside of FIG1a. The number and form of each main body are arbitrary. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0180] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0181] Currently, with people's pursuit of speed, latency, high-speed mobility, energy efficiency, and the diversity and complexity of business in future life, the 3rd Generation Partnership Project (3GPP) international standards organization has begun to develop 5G.

[0182] In some embodiments, the main application scenarios of 5G are: enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC), and massive machine-type communications (mMTC).

[0183] In some embodiments, eMBB still aims to provide users with multimedia content, services, and data, and its demand is growing rapidly. On the other hand, since eMBB may be deployed in different scenarios, such as indoors, urban areas, and rural areas, its capabilities and needs vary considerably. Therefore, generalizations cannot be made, and a detailed analysis must be conducted in conjunction with the specific deployment scenario.

[0184] In some embodiments, typical applications of URLLC include: industrial automation, power automation, remote medical operations (surgery), traffic safety assurance, etc.

[0185] In some embodiments, typical characteristics of mMTC include: high connection density, small data volume, latency-insensitive services, low module cost, and long service life.

[0186] In some embodiments, the UE typically sends message MSG1 to the network side, receives MSG2, sends MSG3, and receives MSG4, all within a single cell. This includes the following steps (which can be four steps (4 steps), as shown in Figure 1b, or two steps (2 steps), as shown in Figure 1c):

[0187] first step:

[0188] 1.1 The terminal determines the relationship between the Synchronization Signal / PBCH Block (SSB) and Physical Random Access Channel (PRACH) resources, and the preamble (configured by higher layers).

[0189] 1.2 Receive a set of SSBs and determine their Reference Signal Receiving Power (RSRP) value, and select an appropriate SSB according to the threshold;

[0190] 1.3 Determine the range of RACH resources and Preamble resources based on the selected SSB and the correspondence between SSB and RACH resources;

[0191] 1.4 Select a preamble group based on the size of Msg3; then randomly select a preamble.

[0192] 1.5 Set the target receive power: preambleReceivedTargetPower + DELTA_PREAMBLE + (PREAMBLE_POWER_RAMPING_COUNTER – 1) × powerRampingStep;

[0193] 1.6 Transmit the sequence on the PRACH time-frequency domain resource.

[0194] Step Two:

[0195] 2.1 Determine RA-RNTI based on the time-frequency domain resources of the PRACH sent msg1; Calculate RA-RNTI: RA-RNTI=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id;

[0196] 2.2 The UE opens the RAR time window (ra-Response Window) at the first PDCCH timing after sending the preamble and listens for the RA-RNTI scrambled PDCCH during the operation of this time window in order to receive the corresponding RA-RNTI RAR;

[0197] 2.3 If no RAR is received within the RAR monitoring window or the RAR corresponding to the RAPID of the sent Preamble is not received, then power ramping is performed (whether ramping depends on whether beam is switched) and msg1 is retransmitted.

[0198] 2.4 If a RAR is received within the RAR monitoring window, and if it is the first time a RAR has been received, the MAC PDU is obtained from the multiplexing and assembly entity and stored in the MSG3 buffer memory as the MAC PDU.

[0199] Step 3:

[0200] 3.1 If the UE does not have its own Cell-Radio Network Temporary Identifier (C-RNTI), the execution of the RACH is triggered by the Common Control Channel (CCCH). In this case, MSG3 is the Media Access Control (MAC) Protocol Data Unit (PDU) generated by inputting the CCCH Service Data Unit (SDU). If the UE has its own C-RNTI, the UE indicates that the multiplexing and assembly entity includes the C-RNTI MAC CE. In this case, MSG3 is the MAC PDU generated by the C-RNTI MAC CE.

[0201] 3.2 Obtain the MAC PDU from the MSG3 buffer and transmit the MAC PDU based on the uplink grant in the random access response RAR;

[0202] 3.3 After Msg3 is transmitted, start ra-ContentionResolutionTimer and listen to PDCCH during the timer's operation; if MSG3 contains C-RNTI MAC CE, the UE listens to the PDCCH scrambled by the C-RNTI; if MSG3 does not contain C-RNTI MAC CE, the UE listens to the temporary C-RNTI and receives MSG4.

[0203] 3.4 When Msg3 performs a Hybrid Automatic Repeat reQuest (HARQ) retransmission, the timer is restarted; the UE will continue to listen to the PDCCH until the timer expires or stops; MSG3 HARQ retransmission is scrambling and scheduled based on temporary C-RNTI.

[0204] Step 4: Conflict Resolution

[0205] 4.1 If MSG3 contains a C-RNTI MAC CE, the UE listens for the PDCCH scrambled by that C-RNTI. If it detects the PDCCH, the conflict resolution is considered successful. If it does not detect the PDCCH, the conflict resolution is considered unsuccessful.

[0206] 4.2 If MSG 3 does not contain C-RNTI MAC CE, then the UE listens to the temporary C-RNTI and receives MSG4. If MSG4 is received and MSG4 can be matched with CCCH SDU, then the conflict resolution is successful; otherwise, the conflict resolution fails.

[0207] 4.3 If conflict resolution fails, the UE will perform a power ramp (whether to ramp depends on whether beam is switched) and retransmit MSG1.

[0208] In some embodiments, in New Radio (NR), a supplementary uplink (SUL) frequency is introduced in a cell in addition to the non-supplementary uplink (NUL) frequency. The motivation is to improve uplink coverage in the high-frequency band of NR. UE uplink power is limited, and the NR spectrum (high frequency, high propagation loss) has a relatively high frequency, thus limiting uplink coverage. To improve uplink coverage, utilizing the LTE spectrum (relatively lower frequency) as the uplink frequency can enhance uplink coverage.

[0209] In some embodiments, two ULs and one DL belong to the same cell, and at most one Physical Uplink Shared Channel (PUSCH) can be used for transmission at any given time.

[0210] In some embodiments, unless the network explicitly instructs the UE to use a specific UL, the UE determines the UL selection based on a measurement threshold. This threshold is configured and broadcast in the system broadcast.

[0211] In some embodiments, dynamic switching between two UL carriers can be indicated by downlink control information (DCI).

[0212] In some embodiments, a set of RACH resource configurations is configured on both NUL and SUL, and the configurations are independent, including: independent configuration based on per carrier preamble, independent configuration based on per carrier random access channel timing (RO) resource configuration, and independent RACH control parameter configuration, etc.

[0213] In some embodiments, each carrier is configured with a Physical Random Access Channel (PRACH) resource. However, for the massive IoT connections of future 6G, RACH capacity is limited. Future 6G is geared towards intelligent IoT, connecting everything. Therefore, it supports "massive communication" and massive connections. This large number of IoT devices and the rapidly growing number of commercially available terminals pose a challenge to RACH resources and capacity. If a large amount of RACH resources are reserved, it would be a waste of radio resources when services are not busy. Therefore, how to balance this relationship in this scenario is a problem that needs to be considered in 6G.

[0214] Figure 2a is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2a, the present disclosure relates to a communication method for a communication system 100, the method comprising:

[0215] Step S2101: The network device sends RACH resource configuration information to the terminal.

[0216] In some embodiments, the terminal receives RACH resource configuration information sent by the network device.

[0217] In some embodiments, RACH resource configuration information may be PRACH resource configuration information.

[0218] In some embodiments, the network device sends a system broadcast message to the terminal, which contains RACH resource configuration information.

[0219] In some embodiments, the terminal receives at least one Random Access Channel (RACH) resource configuration information sent by the network device.

[0220] In some embodiments, the RACH resource configuration information is used to determine the random access channel timing (RO, RACH Occasion).

[0221] In some embodiments, the RACH resource configuration information is configuration information related to the random access channel timing (RO, RACH Occasion).

[0222] In some embodiments, there may be at least two RACH resource configuration information. For example, there may be a first RACH resource configuration information and a second RACH resource configuration information. For example, please refer to Figure 2b, which shows RACH-configuration1 and RACH-configuration2.

[0223] In some embodiments, different RACH resource configuration information are associated with different indexes.

[0224] In some embodiments, the index is used to indicate the RACH resource configuration information.

[0225] In some embodiments, there is a one-to-one correspondence between the RACH resource configuration information and the index. For example, please refer to Table 1:

[0226] Table 1

[0227] For example, a network device configures at least one RACH resource configuration information, which is used to determine the configuration of RO, and each RACH resource configuration corresponds to an index 0, 1, 2, ... N.

[0228] In some embodiments, the RACH resource configuration information includes an index associated with the RACH resource configuration information; the index is a first value, which indicates that the RACH resource configuration information is the first RACH resource configuration information, or the index is a second value, which indicates that the RACH resource configuration information is the second RACH resource configuration information.

[0229] In some embodiments, the RACH resource configuration information is divided into different groups.

[0230] In some embodiments, the search space for Random Access Channel (RACH) Responses associated with different packets is different.

[0231] In some embodiments, the group contains at least two of the RACH resource configuration information.

[0232] In some embodiments, the terminal may receive fourth information sent by the network device, wherein the fourth information is used to update the number of activated RACH resource configuration information.

[0233] For example, the number of default active PRACH resource configuration messages can be changed by paging DCI or system broadcast messages.

[0234] In some embodiments, if the terminal determines that the random access procedure has failed, it updates the first RACH resource configuration information.

[0235] In some embodiments, if random access conflict resolution fails, the first RACH resource configuration information is updated.

[0236] In some embodiments, the first RACH resource configuration information is the RACH resource configuration information used during random access.

[0237] Step S2102: The network device sends the first information to the terminal.

[0238] In some embodiments, the terminal receives first information sent by the network device.

[0239] In some embodiments, the terminal receives a Radio Resource Control (RRC) message sent by a network device. The RRC message includes the first information.

[0240] In some embodiments, the first information is used for at least one of the following:

[0241] Activate the RACH resource configuration information;

[0242] Deactivate the RACH resource configuration information.

[0243] For example, the first information is used to activate the first RACH resource configuration information.

[0244] For example, the first information is used to deactivate the second RACH resource configuration information.

[0245] For example, the first information is used to activate the first RACH resource configuration information and deactivate the second RACH resource configuration information.

[0246] In some embodiments, the first information is used to indicate a first set.

[0247] In some embodiments, the first set includes one of the following:

[0248] Configuration information for at least two RACH resources to be activated;

[0249] Configuration information for at least two RACH resources to be deactivated.

[0250] In some embodiments, the RACH resource configuration information to be activated and / or the RACH resource configuration information to be deactivated contained in the first set can be indicated by the corresponding index.

[0251] In some embodiments, each RACH resource configuration information is associated with different second information. This can be understood as the second information being configured per RACH configuration information.

[0252] For example, the first RACH resource configuration information is associated with the second information, which is the configuration information of the first preamble; the second RACH resource configuration information is associated with the second information, which is the configuration information of the second preamble; wherein, the number of the first preamble and the second preamble can be multiple, for example, 64.

[0253] In some embodiments, at least two of the RACH resource configuration information are associated with the same second information. Here, at least two of the RACH resource configuration information belong to a set, which can be understood as the second information being configured by the per set.

[0254] For example, both the first RACH resource configuration information and the second RACH resource configuration information are associated with the second information, which is the configuration information of the first preamble.

[0255] In some embodiments, the second information is configuration information for configuring at least one preamble. In some embodiments, a first message sent by a network device is received.

[0256] In some embodiments, the first message carries the first information; the first message includes a first information field and / or a second information field; the first information field is used to indicate whether the subheader of the first message carries or does not carry information for activating or deactivating the RACH resource configuration information, and the second information field is used to indicate the index of the activated or deactivated RACH resource configuration information.

[0257] In some embodiments, the first message carries the first information; the first message includes a first information field and / or a second information field; the first information field is used to indicate whether the subheader of the first message carries or does not carry information for activating or deactivating the RACH resource configuration information, or the first information field is used to indicate that the subheader of the first message does not carry information for activating or deactivating the RACH resource configuration information; the second information field is used to indicate the index of the activated or deactivated RACH resource configuration information.

[0258] In some embodiments, the first information field is used to indicate that the sub-header of the first message carries information for activating or deactivating the RACH resource configuration information. For example, if the first information field carries a first value, it indicates that the sub-header of the first message carries information for activating or deactivating the RACH resource configuration information.

[0259] In some embodiments, the first information field is used to indicate that the subheader of the first message does not carry information for activating or deactivating the RACH resource configuration information. For example, if the first information field carries a second value, it indicates that the subheader of the first message does not carry information for activating or deactivating the RACH resource configuration information.

[0260] For example, please refer to Figure 2c. The first information field is A / D, which indicates whether the current subheading contains PRACH resource configuration information activation indication information. For example, setting the A / D bit to "1" indicates that there is subsequent PRACH resource configuration information activation indication information, and setting it to "0" indicates that there is no PRACH resource configuration information activation indication information.

[0261] For example, please refer to Figure 2c. The second information field is Ri, which indicates the activation indication corresponding to index i of the PRACH resource configuration information. If Ri is set to "1", it means that the PRACH resource configuration information of PRACH configuration index i is activated; otherwise, it is deactivated.

[0262] In some embodiments, the activated or deactivated RACH resource configuration information is at least two; the second information field is used to indicate the at least two activated or deactivated RACH resource configuration information based on the size order of the index.

[0263] For example, if the Ri bitmap contains only PRACH resource configuration information that can perform activation / deactivation operations, then Ri is ordered according to the ascending index of the PRACH resource configuration information that can perform activation / deactivation operations and corresponds one-to-one with the low-order bits of Ri from high-order bits.

[0264] In some embodiments, the first message is a Media Access Control (MAC) control element (CE).

[0265] In some embodiments, the first message is a Random Access Response (RAR) Protocol Data Unit (PDU).

[0266] In some embodiments, the MAC CE is one of the following: a commonly configured MAC CE; or a separately configured MAC CE.

[0267] For example, if the activation of PRACH resource configuration information can also be used for other random access scenarios, such as beam failure recovery (BFR) processes or handover (HO), then any MAC CE (i.e., a commonly configured MAC CE) can contain the Ri bitmap to indicate the activation or deactivation of PRACH resource configuration information, or a separate new MAC CE (i.e., a separately configured MAC CE or a dedicated MAC CE) can contain the Ri bitmap to indicate the activation or deactivation of PRACH resource configuration information.

[0268] Step S2103: The terminal performs the second operation.

[0269] In some embodiments, the terminal determines whether the random access was successful or failed, and then performs a second operation.

[0270] Here, a failed random access could be the first failed random access attempt.

[0271] In some embodiments, the terminal performs a second operation based on a first time.

[0272] In some embodiments, the first time is used to indicate the time when the activated or deactivated RACH resource configuration information expires.

[0273] In some embodiments, the second operation is used to invalidate the activated or deactivated RACH resource configuration information.

[0274] In some embodiments, the first time is determined based on protocol rules or network configuration information.

[0275] For example, if the random access procedure completes successfully or fails, the Ri bitmap in the RAR received by the UE at this time indicates that the PRACH configuration is not activated or deactivated. That is, the UE still uses the default activated PRACH resource configuration information indicated in the system broadcast.

[0276] For example, network-side configuration or system conventions can be used to indicate the validity period of activated PRACH resource configuration information. For instance, if an R bimap is received indicating that a timer has started, and the timer expires, the activated PRACH resource configuration information is considered invalid.

[0277] Step S2104: The terminal selects the first RACH resource configuration information.

[0278] In some embodiments, the first RACH resource configuration information is the RACH resource configuration information used during random access.

[0279] For example, the first RACH resource configuration information is the RACH resource configuration information used for the second transmission of a random access message after the first transmission of the random access message fails during the random access process.

[0280] In some embodiments, the terminal randomly selects the first RACH resource configuration information.

[0281] In some embodiments, the terminal selects first RACH resource configuration information based on second information.

[0282] In some embodiments, the second information includes at least one of the following: the size of the random access message (e.g., 56 bits or 72 bits); the type of terminal (e.g., Internet of Things (IoT) device or normal commercial device); the power class used by the terminal (UE power class); the mobility status of the terminal (e.g., stationary terminal or high-speed mobile terminal, etc.); and the service type (e.g., Artificial Intelligence service, Integrated Sensing and Communication (ISAC) service, high priority service, etc.).

[0283] In some embodiments, the terminal selects first RACH resource configuration information based on third information, wherein the third information indicates a priority and the priority is associated with at least one RACH resource configuration information.

[0284] For example, each PRACH resource configuration information is associated with a priority.

[0285] Step S2105: The terminal ignores the backoff indicator (BI) information.

[0286] In some embodiments, the terminal determines that it has received the RAR sent by the network device and ignores the backoff indication BI information.

[0287] In some embodiments, if it is determined that the first RACH resource configuration information has been updated and a RAR sent by the network device has been received, the backoff indication BI information is ignored.

[0288] In some embodiments, BI information is contained in a RAR.

[0289] In some embodiments, the terminal receives a RAR after sending the first random access message. The first random access message can be sent based on RACH resource configuration information broadcast by the system broadcast message, indicating RACH resources, or it can be understood as the default or traditional RACH resources.

[0290] In some embodiments, after a terminal initiates random access, if the network side detects RO resource load congestion, the network side may indicate BI information and / or indicate newly activated PRACH resource configuration information in the RAR.

[0291] In some embodiments, if RACH fails—for example, after sending MSG1 but not listening for MSG2, or receiving a RAR but not having the terminal's RAR, or if conflict resolution fails—when the terminal resends MSG1, if the RO corresponding to the changed RACH configuration is selected, then if the BI in the previously received RAR contains an indication, that BI indication is ignored. Here, the newly selected RO belongs to a different RACH configuration parameter.

[0292] It should be noted that the method for determining the Radio Access Network Temporary Identifier (RA-RNTI) of the listening RO corresponding to MSG2 after sending MSG1 can be as follows:

[0293] RA-RNTI = 1 + s_id + 14 × t_id + 14 × 80 × f_id + 14 × 80 × 8 × ul_carrier_id + 14 × 80 × 8 × 2 × RACH_config_index; where RACH_config_index is the index. The index can be 0 or 1. When it is 1, it corresponds to the second RACH resource configuration information.

[0294] Step S2106: The terminal performs the first operation.

[0295] In some embodiments, the RACH resource configuration information is divided into different groups.

[0296] In some embodiments, the group contains at least two of the RACH resource configuration information.

[0297] In some embodiments, the first operation is used to perform a power ramp.

[0298] In some embodiments, if the RACH resource configuration information used in two consecutive random access operations belongs to different packets, the first operation is performed.

[0299] In some embodiments, if the RACH resource configuration information used in two consecutive random access operations belongs to the same packet, the first operation is not performed.

[0300] Step S2107: The terminal sends a random access message to the network device.

[0301] In some embodiments, the network device receives a random access message sent by the terminal.

[0302] In some embodiments, the random access message is repeatedly sent during the random access process. For example, the random access message is sent a second time.

[0303] In some embodiments, the RACH resource configuration information used each time the random access message is sent may be the same or different.

[0304] For example, the random access message is the first message MSG1.

[0305] In some embodiments, random access messages can be sent based on a pattern, which is used to indicate RACH resource configuration information for repeatedly sending random access messages.

[0306] In some embodiments, the pattern can be configured on the network side or it can be predefined.

[0307] For example, if the network side is configured to send random access messages four times repeatedly and two PRACH resource configuration information are configured, with each PRACH resource configuration information having the code a and b respectively, then the repeating pattern of frequency modulation (corresponding to random access message transmission) can be: abab or aabb, etc.

[0308] In some embodiments, the term "information" may be used interchangeably with terms such as "message," "signal," "signaling," "report," "configuration," "indication," "instruction," "command," "channel," "parameter," "field," and "data."

[0309] In some embodiments, the term "send" may be used interchangeably with terms such as "transmit," "report," or "transmit."

[0310] The information indication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2107. For example, step S2101 can be implemented as a standalone embodiment, step S2102 can be implemented as a standalone embodiment, step S2103 can be implemented as a standalone embodiment, step S2104 can be implemented as a standalone embodiment, step S2105 can be implemented as a standalone embodiment, step S2106 can be implemented as a standalone embodiment, and step S2107 can be implemented as a standalone embodiment. For example, step S2101 combined with step S2102 can be implemented as an independent embodiment; step S2101 combined with steps S2102, S2104, and S2107 can be implemented as an independent embodiment; step S2101 combined with steps S2102, S2103, S2104, and S2107 can be implemented as an independent embodiment; and step S2101 combined with steps S2102, S2104, S2105, and S2107 can be implemented as... As an independent embodiment, step S2101 combined with steps S2102, S2104, S2106 and S2107 can be implemented as an independent embodiment, and step S2101 combined with steps S2102, S2103, S2104, S2105, S2106 and S2107 can be implemented as an independent embodiment, but is not limited thereto; furthermore, in the case that there is no contradiction in their execution, the order between the steps is not limited, and is not limited here.

[0311] Figure 3a is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3a, the embodiment of the present disclosure relates to a communication method executed by a terminal, the method including:

[0312] Step S3101: Receive RACH resource configuration information sent by the network device.

[0313] In some embodiments, optional implementations of step S3101 can be found in other related parts of the embodiment involving step S2101 in FIG2a, which will not be repeated here.

[0314] Step S3102: Receive the first information sent by the network device.

[0315] In some embodiments, optional implementations of step S3102 can be found in other related parts of the embodiment involving step S2102 in FIG2a, which will not be repeated here.

[0316] Step S3103: Perform the second operation.

[0317] In some embodiments, optional implementations of step S3103 can be found in other related parts of the embodiment involving step S2103 in FIG2a, which will not be repeated here.

[0318] Step S3104: Select the first RACH resource configuration information.

[0319] In some embodiments, optional implementations of step S3104 can be found in other related parts of the embodiment involving step S2104 in FIG2a, which will not be repeated here.

[0320] Step S3105: Ignore the Backoff Indicator (BI) information.

[0321] In some embodiments, optional implementations of step S3105 can be found in other related parts of the embodiment involving step S2105 in FIG2a, which will not be repeated here.

[0322] Step S3106: Perform the first operation.

[0323] In some embodiments, optional implementations of step S3106 can be found in other related parts of the embodiment involving step S2106 in FIG2a, which will not be repeated here.

[0324] Step S3107: Send a random access message to the network device.

[0325] In some embodiments, optional implementations of step S3107 can be found in other related parts of the embodiment involving step S2107 in FIG2a, which will not be repeated here.

[0326] The information indication method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3107. For example, step S3101 can be implemented as a standalone embodiment, step S3102 can be implemented as a standalone embodiment, step S3103 can be implemented as a standalone embodiment, step S3104 can be implemented as a standalone embodiment, step S3105 can be implemented as a standalone embodiment, step S3106 can be implemented as a standalone embodiment, and step S3107 can be implemented as a standalone embodiment. For example, step S3101 combined with step S3102 can be implemented as an independent embodiment; step S3101 combined with steps S3102, S3104, and S3107 can be implemented as an independent embodiment; step S3101 combined with steps S3102, S3103, S3104, and S3107 can be implemented as an independent embodiment; and step S3101 combined with steps S3102, S3104, S3105, and S3107 can be implemented as... As an independent embodiment, step S3101 combined with steps S3102, S3104, S3106 and S3107 can be implemented as an independent embodiment, and step S3101 combined with steps S3102, S3103, S3104, S3105, S3106 and S3107 can be implemented as an independent embodiment, but is not limited thereto; furthermore, the order of the steps is not limited as long as they are not contradictory to each other, and is not limited here.

[0327] Figure 3b is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3b, the embodiment of the present disclosure relates to a communication method executed by a terminal, the method including:

[0328] Step S3201: Receive at least one Random Access Channel (RACH) resource configuration information sent by the network device, wherein the RACH resource configuration information is used to determine the RACH timing (RO).

[0329] Step S3202: Receive first information sent by the network device, wherein the first information is used for at least one of the following:

[0330] Activate the RACH resource configuration information;

[0331] Deactivate the RACH resource configuration information.

[0332] In some embodiments, different RACH resource configuration information is associated with different indexes, wherein the indexes are used to indicate the RACH resource configuration information.

[0333] In some embodiments, the first information is used to indicate a first set, the first set comprising one of the following:

[0334] Configuration information for at least two RACH resources to be activated;

[0335] Configuration information for at least two RACH resources to be deactivated.

[0336] In some embodiments, each of the RACH resource configuration information is associated with different second information or at least two of the RACH resource configuration information are associated with the same second information; wherein, the second information is configuration information for configuring at least one preamble.

[0337] In some embodiments, the RACH resource configuration information is divided into different groups, and the method includes one of the following:

[0338] If the RACH resource configuration information used in two consecutive random access operations belongs to different packets, the first operation is performed.

[0339] If the RACH resource configuration information used in two consecutive random access operations belongs to the same packet, the first operation will not be performed.

[0340] The group contains at least two RACH resource configuration information, and the first operation is used to perform power ramping.

[0341] In some embodiments, the RACH resource configuration information is divided into different groups, and the random access channel response (RAR) search spaces associated with different groups are different. Each group contains at least two pieces of the RACH resource configuration information.

[0342] In some embodiments, the method further includes:

[0343] Repeatedly sending random access messages during the random access process;

[0344] The RACH resource configuration information used in each transmission of the random access message may be the same or different.

[0345] In some embodiments, the method further includes one of the following:

[0346] Randomly select the first RACH resource configuration information;

[0347] The first RACH resource configuration information is selected based on the second information, which includes at least one of the following: the size of the random access message; the type of terminal; the power level used by the terminal; the mobility state of the terminal; and the service type.

[0348] First RACH resource configuration information is selected based on third information, wherein the third information indicates priority and the priority is associated with at least one RACH resource configuration information.

[0349] The first RACH resource configuration information is the RACH resource configuration information used during the random access process.

[0350] In some embodiments, the first message carries the first information; the first message includes a first information field and / or a second information field; the first information field is used to indicate that the subheader of the first message carries information for activating or deactivating the RACH resource configuration information, or the first information field is used to indicate that the subheader of the first message does not carry information for activating or deactivating the RACH resource configuration information; the second information field is used to indicate the index of the activated or deactivated RACH resource configuration information.

[0351] In some embodiments, the activated or deactivated RACH resource configuration information is at least two; the second information field is used to indicate the at least two activated or deactivated RACH resource configuration information based on the size order of the index.

[0352] In some embodiments, the first message is a Media Access Control (MAC) Control Element (CE) or a Random Access Response (RAR) Protocol Data Unit (PDU); the MAC CE is one of the following: a commonly configured MAC CE; or a separately configured MAC CE.

[0353] In some embodiments, the method further includes at least one of the following:

[0354] Determine whether the random access was successful or failed, then proceed to the second step;

[0355] Based on the first instance, execute the second operation;

[0356] Wherein, the first time is used to indicate the time when the activated or deactivated RACH resource configuration information becomes invalid; the second operation is used to invalidate the activated or deactivated RACH resource configuration information.

[0357] In some embodiments, the first time is determined based on protocol rules or network configuration information.

[0358] In some embodiments, the method further includes:

[0359] Receive the fourth message sent by the network device;

[0360] The fourth information is used to update the number of activated RACH resource configuration information.

[0361] In some embodiments, the method further includes at least one of the following:

[0362] If the random access procedure fails, update the first RACH resource configuration information.

[0363] If random access conflict resolution fails, update the first RACH resource configuration information;

[0364] The first RACH resource configuration information is the RACH resource configuration information used during the random access process.

[0365] In some embodiments, the method further includes:

[0366] Confirm receipt of the RAR sent by the network device, and ignore the backoff indication BI information.

[0367] Figure 4a is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4a, the embodiment of the present disclosure relates to a communication method executed by a network device, the method including:

[0368] Step S4101: Send RACH resource configuration information to the terminal.

[0369] In some embodiments, optional implementations of step S4101 can be found in other related parts of the embodiment involving step S2101 in FIG2a, which will not be repeated here.

[0370] Step S4102: Send the first information to the terminal.

[0371] In some embodiments, optional implementations of step S4102 can be found in other related parts of the embodiment involving step S2102 in FIG2a, which will not be repeated here.

[0372] Step S4103: Receive the random access message sent by the terminal.

[0373] In some embodiments, optional implementations of step S4103 can be found in other related parts of the embodiment involving step S2107 in FIG2a, which will not be repeated here.

[0374] The information indication method involved in the embodiments of this disclosure may include at least one of steps S4101 to S4103. For example, step S4101 may be implemented as an independent embodiment, step S4102 may be implemented as an independent embodiment, and step S4103 may be implemented as an independent embodiment. For example, step S4101 combined with step S4102 may be implemented as an independent embodiment, or step S4101 combined with steps S4102 and S4103 may be implemented as an independent embodiment, but it is not limited thereto; furthermore, the order of the steps is not limited when they are executed without contradiction, and is not limited here.

[0375] Figure 4b is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4b, the embodiment of the present disclosure relates to a communication method executed by a network device, the method including:

[0376] Step S4201: Send at least one random access channel (RACH) resource configuration information to the terminal, wherein the RACH resource configuration information is used to determine the RACH timing (RO).

[0377] Step S4202: Send first information to the terminal, wherein the first information is used for at least one of the following:

[0378] Activate the RACH resource configuration information;

[0379] Deactivate the RACH resource configuration information.

[0380] In some embodiments, different RACH resource configuration information is associated with different indexes, wherein the indexes are used to indicate the RACH resource configuration information.

[0381] In some embodiments, the first information is used to indicate a first set, the first set comprising one of the following:

[0382] Configuration information for at least two RACH resources to be activated;

[0383] Configuration information for at least two RACH resources to be deactivated.

[0384] In some embodiments, each of the RACH resource configuration information is associated with different second information or at least two of the RACH resource configuration information are associated with the same second information; wherein, the second information is configuration information for configuring at least one preamble.

[0385] In some embodiments, the RACH resource configuration information is divided into different groups, and the random access response (RAR) search spaces associated with different groups are different. Each group contains at least two pieces of the RACH resource configuration information.

[0386] In some embodiments, the method further includes:

[0387] Repeatedly receiving random access messages during the random access process;

[0388] The RACH resource configuration information used in each transmission of the random access message may be the same or different.

[0389] In some embodiments, the first message carries the first information; the first message includes a first information field and / or a second information field; the first information field is used to indicate that the subheader of the first message carries information for activating or deactivating the RACH resource configuration information, or the first information field is used to indicate that the subheader of the first message does not carry information for activating or deactivating the RACH resource configuration information; the second information field is used to indicate the index of the activated or deactivated RACH resource configuration information.

[0390] In some embodiments, the activated or deactivated RACH resource configuration information is at least two; the second information field is used to indicate the at least two activated or deactivated RACH resource configuration information based on the size order of the index.

[0391] In some embodiments, the first message is a Media Access Control (MAC) Control Element (CE) or a Random Access Response (RAR) Protocol Data Unit (PDU); the MAC CE is one of the following: a commonly configured MAC CE; or a separately configured MAC CE.

[0392] In some embodiments, the method further includes:

[0393] Send the fourth message to the terminal;

[0394] The fourth information is used to update the number of activated RACH resource configuration information.

[0395] Figure 5a is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 5a, the present disclosure relates to a communication method for a communication system 100, the method including one of the following steps:

[0396] Step S5101: The network device sends at least one Random Access Channel (RACH) resource configuration information to the terminal, wherein the RACH resource configuration information is used to determine the RACH timing (RO).

[0397] Step S5102: The network device sends first information to the terminal, wherein the first information is used for at least one of the following:

[0398] Activate the RACH resource configuration information;

[0399] Deactivate the RACH resource configuration information.

[0400] The optional implementations of steps S5101 and S5102 can be found in the optional implementations of steps S2101 to S2107 in Figure 2a and other related parts in the embodiments involved in Figure 2a, which will not be repeated here.

[0401] In some embodiments, the above methods may include the methods described in the embodiments of the communication system side, terminal, network device, etc., which will not be repeated here.

[0402] To better understand the embodiments of this disclosure, the following exemplary embodiments are provided for further explanation:

[0403] In some embodiments, available PRACH resources are dynamically adjusted according to business needs and load changes to improve UL frequency efficiency while also taking into account the RACH capacity requirements in IoT scenarios with massive UE connections.

[0404] In some embodiments, the network side configures at least one RACH configuration (corresponding to RACH resource configuration information), for example, through system broadcast information. The RACH configuration is used to determine the configuration of RACH occasion (RO). Each RACH configuration corresponds to an index 0, 1, 2…N. The network side simultaneously configures the set of RACH configurations that are activated by default from among the multiple sets of RACH configurations.

[0405] In some embodiments, each RACH configuration is associated with a configuration of 64 preambles, that is, the preamble configuration is per RACH configuration, or the per RACH configuration is a group configuration (that is, multiple RACH configurations are associated with one preamble configuration).

[0406] In some embodiments, multiple PRACH configurations are grouped. During the UE random access process, if the RO resources selected before and after belong to different groups, the power increases once; if they belong to the same group, the power does not increase.

[0407] In some embodiments, multiple PRACH configurations are grouped, with each group of PRACH corresponding to a different RAR search space.

[0408] In some embodiments, the UE can repeat the MSG1 transmission between multiple PRACH configurations. The repetition can be repeated by frequency hopping between different PRACH configurations. The repetition pattern can depend on the network-side configuration. For example, if the network-side configuration repeats four times and two PRACH configurations are configured, with each PRACH configuration code being a and b respectively, then the frequency modulation repetition pattern can be: abab, aabb, etc.

[0409] In some embodiments, when a UE initiates a random access procedure, the principle for the UE to select the RO may be:

[0410] a) Random selection;

[0411] b) Selection is based on information associated with PRACH resources. The different RACH configurations can be used to distinguish different MSG3 sizes (e.g., 56-bit or 72-bit), different terminal types (e.g., IoT devices, normal commercial devices), different UE power classes, different UE mobility states (e.g., stationary terminals, high-speed mobile terminals, etc.), different service types (e.g., AI services, ISAC services, high-priority services, etc.).

[0412] c) Select according to the priority of different PRACHs, for example, each PRACH can be configured to be associated with a priority indicator.

[0413] In some embodiments, after the UE initiates random access, if the network side detects RO resource congestion, the network side can indicate a BI indication in the RAR reply, while also indicating the newly activated PRACH configuration. Wherein:

[0414] A / D: Indicates whether the current subheader contains PRACH resource activation indication information. For example, setting the A / D bit to 1 indicates that the subsequent PRACH resource activation indication information exists, and setting it to 0 indicates that the PRACH resource activation indication information does not exist.

[0415] Ri: Indicates the activation indication corresponding to index i in the PRACH configuration. If Ri is set to 1, it means that the PRACH configuration at index i is activated; otherwise, it is deactivated.

[0416] In some embodiments, if the Ri bitmap contains only PRACH configurations that can perform activation / deactivation operations, then Ri is ordered according to the ascending order of the PRACH configuration indexes that can perform activation / deactivation operations and corresponds one-to-one with the least significant bit of Ri from the most significant bit.

[0417] In some embodiments, if PRACH activation can also be used for other random access scenarios, such as BFR or HO, then any MAC CE can include the Ri bitmap to indicate the activation or deactivation of the PRACH configuration, or a separate new MAC CE can include the Ri bitmap to indicate the activation or deactivation of the PRACH configuration.

[0418] In some embodiments, when the random access procedure completes successfully or fails, the Ri bitmap in the RAR received by the UE indicates that the PRACH configuration should be activated or deactivated. That is, the UE still uses the default activated PRACH configuration as indicated in the system broadcast.

[0419] In some embodiments, network-side configuration or system conventions can be used to indicate the validity period of an active PRACH configuration. For example, if an R bimap is received indicating that a timer has started, and the timer expires, the active PRACH configuration is considered invalid.

[0420] In some embodiments, if the system wants to increase the number of default active PRACH configurations, it can change the number of default active PRACH configurations through paging DCI or system broadcast information.

[0421] In some embodiments, after sending MSG1 and receiving MSG2, the method for determining the RA-RNTI of the listening RO can be:

[0422] RA-RNTI = 1 + s_id + 14 × t_id + 14 × 80 × f_id + 14 × 80 × 8 × ul_carrier_id + 14 × 80 × 8 × 2 × RACH_config_index; where RACH_config_index is the index. The index can be 0 or 1. When it is 1, it corresponds to the second RACH resource configuration information.

[0423] In some embodiments, if RACH fails, for example, after sending MSG1, no MSG2 is detected, or a RAR is received but there is no RAR of its own, or conflict resolution fails, when the UE sends MSG1 again, if the RO corresponding to the changed RACH configuration is selected, if there is an indication in the BI in the previously received RAR, the BI indication is ignored, and if the newly selected RO belongs to a different RACH configuration parameter.

[0424] In this disclosure, the network side can dynamically increase PRACH resources based on random access load detection to meet the increased access capacity requirements while also satisfying UL frequency efficiency.

[0425] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0426] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0427] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single object, or they can be separated on the object. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0428] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0429] Figure 6a is a schematic diagram of the structure of the terminal 6100 according to an embodiment of this disclosure. As shown in Figure 6a, the terminal 6100 may include at least one of a transceiver module 6101, a processing module 6102, etc. In some embodiments, the transceiver module is used to send and receive information. Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the terminal in any of the above methods, which will not be described in detail here. Optionally, the processing module is used to perform at least one of the other steps performed by the terminal in any of the above methods, which will not be described in detail here.

[0430] Figure 6b is a schematic diagram of the structure of a network device 6200 according to an embodiment of this disclosure. As shown in Figure 6b, the network device 6200 may include at least one of a transceiver module 6201, a processing module 6202, etc. In some embodiments, the transceiver module is used to send and receive information. Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the network device in any of the above methods, which will not be described in detail here. In some embodiments, the transceiver module may include a sending module and / or a receiving module, which may be separate or integrated together. Optionally, the transceiver module may be interchangeable with a transceiver.

[0431] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0432] Figure 7a is a schematic diagram of the structure of the communication device 9100 proposed in an embodiment of this disclosure. The communication device 9100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 9100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0433] As shown in Figure 7a, the communication device 9100 includes one or more processors 9101. The processor 9101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. The communication device 9100 is used to execute any of the above methods.

[0434] In some embodiments, the communication device 9100 further includes one or more memories 9102 for storing instructions. Optionally, all or part of the memories 9102 may also be located outside the communication device 9100.

[0435] In some embodiments, the communication device 9100 further includes one or more transceivers 9103. When the communication device 9100 includes one or more transceivers 9103, the transceivers 9103 perform at least one of the communication steps such as sending and / or receiving in the above method, and the processor 9101 performs at least one of the other steps.

[0436] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0437] In some embodiments, the communication device 9100 may include one or more interface circuits 9104. Optionally, the interface circuit 9104 is connected to the memory 9102, and the interface circuit 9104 can be used to receive signals from the memory 9102 or other devices, and can be used to send signals to the memory 9102 or other devices. For example, the interface circuit 9104 can read instructions stored in the memory 9102 and send the instructions to the processor 9101.

[0438] The communication device 9100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 9100 described in this disclosure is not limited thereto, and the structure of the communication device 9100 may not be limited by FIG7a. The communication device may be a standalone device or may be part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0439] Figure 7b is a schematic diagram of the structure of the chip 9200 proposed in an embodiment of this disclosure. For cases where the communication device 9100 can be a chip or a chip system, please refer to the schematic diagram of the chip 9200 shown in Figure 7b, but it is not limited thereto.

[0440] Chip 9200 includes one or more processors 9201, which are used to perform any of the above methods.

[0441] In some embodiments, chip 9200 further includes one or more interface circuits 9202. Optionally, the interface circuit 9202 is connected to memory 9203, and the interface circuit 9202 can be used to receive signals from memory 9203 or other devices, and the interface circuit 9202 can be used to send signals to memory 9203 or other devices. For example, the interface circuit 9202 can read instructions stored in memory 9203 and send the instructions to processor 9201.

[0442] In some embodiments, the interface circuit 9202 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 9201 performs at least one of the other steps.

[0443] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0444] In some embodiments, chip 9200 further includes one or more memories 9203 for storing instructions. Optionally, all or part of the memories 9203 may be located outside of chip 9200.

[0445] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 9100, cause the communication device 9100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0446] This disclosure also provides a program product that, when executed by the communication device 9100, causes the communication device 9100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0447] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A communication method characterized by comprising: The method is executed by a terminal, and the method includes: Receive at least one Random Access Channel (RACH) resource configuration information sent by a network device, wherein the RACH resource configuration information is used to determine the RACH timing (RO). Receive first information sent by the network device, wherein the first information is used for at least one of the following: Activate the RACH resource configuration information; Deactivate the RACH resource configuration information.

2. The method of claim 1, wherein, Different RACH resource configuration information is associated with different indexes, wherein the indexes are used to indicate the RACH resource configuration information.

3. The method according to claim 1 or 2, characterized in that, The first information is used to indicate a first set, which includes one of the following: Configuration information for at least two RACH resources to be activated; Configuration information for at least two RACH resources to be deactivated.

4. The method according to any one of claims 1 to 3, characterized in that, Each of the RACH resource configuration information is associated with a different second information or at least two of the RACH resource configuration information are associated with the same second information; wherein the second information is configuration information for configuring at least one preamble.

5. The method according to any one of claims 1 to 4, characterized in that, The RACH resource configuration information is divided into different groups, and the method includes: If the RACH resource configuration information used in two consecutive random access operations belongs to different packets, the first operation is performed. The group contains at least two RACH resource configuration information, and the first operation is used to perform power ramping.

6. The method according to any one of claims 1 to 5, characterized in that, The RACH resource configuration information is divided into different groups, and the random access channel response (RAR) search spaces associated with different groups are different. Each group contains at least two of the RACH resource configuration information.

7. The method according to any one of claims 1 to 6, characterized in that, The method also includes one of the following: Randomly select the first RACH resource configuration information; The first RACH resource configuration information is selected based on the second information, which includes at least one of the following: the size of the random access message; the type of terminal; the power level used by the terminal; the mobility state of the terminal; and the service type. First RACH resource configuration information is selected based on third information, wherein the third information indicates priority and the priority is associated with at least one RACH resource configuration information. The first RACH resource configuration information is the RACH resource configuration information used during the random access process.

8. The method of claim 1, wherein The first message carries the first information; the first message includes a first information field and / or a second information field; the first information field is used to indicate that the subheader of the first message carries information for activating or deactivating the RACH resource configuration information, or the first information field is used to indicate that the subheader of the first message does not carry information for activating or deactivating the RACH resource configuration information. The second information field is used to indicate the index of activated or deactivated RACH resource configuration information.

9. The method of claim 8, wherein, The activated or deactivated RACH resource configuration information shall be at least two; the second information field is used to indicate the at least two activated or deactivated RACH resource configuration information based on the size order of the index.

10. The method according to claim 8 or 9, characterized in that, The first message is either a Media Access Control (MAC) Control Element (CE) or a Random Access Response (RAR) Protocol Data Unit (PDU); the MAC CE is one of the following: a commonly configured MAC CE; or a separately configured MAC CE.

11. The method according to any one of claims 1 to 10, characterized in that, The method further includes at least one of the following: Once the random access is confirmed to be successful or failed, proceed to the second step. Based on the first instance, execute the second operation; Wherein, the first time is used to indicate the time when the activated or deactivated RACH resource configuration information becomes invalid; the second operation is used to invalidate the activated or deactivated RACH resource configuration information.

12. The method according to any one of claims 1 to 11, characterized in that, The method further includes: Receive the fourth message sent by the network device; The fourth information is used to update the number of activated RACH resource configuration information.

13. The method according to any one of claims 1 to 12, characterized in that, The method further includes: Once the first RACH resource configuration information is confirmed to be updated and the RAR sent by the network device is received, the backoff indication BI information is ignored. The first RACH resource configuration information is the RACH resource configuration information used during the random access process.

14. A communication method, characterized in that, The method is performed by a network device, and the method includes: Send at least one random access channel (RACH) resource configuration information to the terminal, wherein the RACH resource configuration information is used to determine the RACH timing (RO); Send first information to the terminal, wherein the first information is used for at least one of the following: Activate the RACH resource configuration information; Deactivate the RACH resource configuration information.

15. The method according to claim 14, characterized in that, Different RACH resource configuration information is associated with different indexes, wherein the indexes are used to indicate the RACH resource configuration information.

16. The method according to claim 14 or 15, characterized in that, The first information is used to indicate a first set, which includes one of the following: Configuration information for at least two RACH resources to be activated; Configuration information for at least two RACH resources to be deactivated.

17. The method according to any one of claims 14 to 16, characterized in that, Each of the RACH resource configuration information is associated with a different second information or at least two of the RACH resource configuration information are associated with the same second information; wherein the second information is configuration information for configuring at least one preamble.

18. The method according to any one of claims 14 to 17, characterized in that, The RACH resource configuration information is divided into different groups, and the random access response (RAR) search spaces associated with different groups are different. Each group contains at least two of the RACH resource configuration information.

19. The method according to claim 14, characterized in that, The first message carries the first information; the first message includes a first information field and / or a second information field; the first information field is used to indicate that the subheader of the first message carries information for activating or deactivating the RACH resource configuration information, or the first information field is used to indicate that the subheader of the first message does not carry information for activating or deactivating the RACH resource configuration information. The second information field is used to indicate the index of activated or deactivated RACH resource configuration information.

20. The method according to claim 19, characterized in that, The activated or deactivated RACH resource configuration information shall be at least two; the second information field is used to indicate the at least two activated or deactivated RACH resource configuration information based on the size order of the index.

21. The method according to claim 19 or 20, characterized in that, The first message is a Media Access Control (MAC) Control Element (CE) or a Random Access Response (RAR) Protocol Data Unit (PDU); the MAC CE is one of the following: a commonly configured MAC CE; or a separately configured MAC CE.

22. The method according to any one of claims 14 to 21, characterized in that, The method further includes: Send the fourth message to the terminal; The fourth information is used to update the number of activated RACH resource configuration information.

23. A communication method, characterized in that, The method includes: The network device sends at least one random access channel (RACH) resource configuration information to the terminal, the RACH resource configuration information being used to determine the RACH timing (RO). The network device sends first information to the terminal, wherein the first information is used for at least one of the following: Activate the RACH resource configuration information; Deactivate the RACH resource configuration information.

24. A terminal, characterized in that, The terminal includes: The transceiver module is configured as follows: Receive at least one Random Access Channel (RACH) resource configuration information sent by a network device, wherein the RACH resource configuration information is used to determine the RACH timing (RO). Receive first information sent by the network device, wherein the first information is used for at least one of the following: Activate the RACH resource configuration information; Deactivate the RACH resource configuration information.

25. A network device, characterized in that, The network device includes: The transceiver module is configured as follows: Send at least one random access channel (RACH) resource configuration information to the terminal, wherein the RACH resource configuration information is used to determine the RACH timing (RO); Send first information to the terminal, wherein the first information is used for at least one of the following: Activate the RACH resource configuration information; Deactivate the RACH resource configuration information.

26. A terminal, characterized in that, The terminal includes: One or more processors; The terminal is used to execute the method according to any one of claims 1 to 13.

27. A network device, characterized in that, The network device includes: One or more processors; The network device is used to perform the method according to any one of claims 14 to 22.

28. A computer program product, comprising a computer program or instructions, characterized in that, When the computer program or instructions are executed by a processor, they implement the steps of the method according to any one of claims 1 to 13 and claims 14 to 22.

29. A storage medium, characterized in that, The storage medium stores instructions that, when executed on a communication device, cause the communication device to perform the method of any one of claims 1 to 13 and claims 14 to 22.

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