Random access method, apparatus and related device

Abstract

The application provides a random access method, device and related equipment, and belongs to the technical field of communication. The random access method of the application comprises the following steps: sending pre-configuration information to a terminal, wherein the pre-configuration information comprises configuration information of a plurality of non-cell defined synchronization information blocks (NCD-SSB), configuration information of a plurality of random access occasions (RO) and a mapping relationship between each NCD-SSB and RO; and receiving a message 1 sent by the terminal on the RO mapped with the NCD-SSB according to the pre-configuration information, wherein the message 1 is used to complete a random access process. Through the mapping scheme of the newly-added NCD-SSB and RO, the waste of RO resources is reduced, and the time for the terminal to access a cell is shortened.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of communication technology, and in particular to a random access method, device and related equipment. BACKGROUND

[0002] With the development of wireless communication technology, the fifth generation mobile communication technology (5th Generation, 5G) has emerged.

[0003] In the standardization discussion of the third generation partnership project (3rd Generation Partnership Project, 3GPP), the cell definition-synchronization information block (Cell-Define Synchronization Signal and Physical Broadcast Channel block, CD-SSB) and the random access occasion (Physical Random-Access Channel Occasion, RO) are mapped, but only when the number of CD-SSB and the number of RO exist a multiple relationship, the RO resources can be fully utilized, when the number of RO and the number of CD-SSB do not exist a multiple relationship, part of the RO resources will be wasted. SUMMARY

[0004] Embodiments of the present application provide a random access method, device and related equipment to solve the problem of RO resource waste in related technologies.

[0005] To solve the above problems, the present application is implemented as follows:

[0006] In a first aspect, the embodiments of the present application provide a random access method applied to a network side device, the method comprising:

[0007] sending pre-configuration information to a terminal, the pre-configuration information comprising configuration information of a plurality of non-cell definition-synchronization information blocks (NCD-SSB), configuration information of a plurality of random access occasions (RO), and mapping relationship between each NCD-SSB and RO;

[0008] receiving a message 1 sent by the terminal according to the pre-configuration information on the RO mapped with the NCD-SSB;

[0009] completing a random access process according to the message 1.

[0010] Optionally, the pre-configuration information further comprises configuration information of a plurality of cell definition-synchronization information blocks (CD-SSB), and mapping relationship between each CD-SSB and RO;

[0011] In a case where the quasi co-location parameter of the target CD-SSB is different from the quasi co-location parameter of the target NCD-SSB:

[0012] The time of the RO mapped with the target CD-SSB is earlier than the time of the RO mapped with the target NCD-SSB, or the time of the RO mapped with the target CD-SSB is later than the time of the RO mapped with the target NCD-SSB.

[0013] Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0014] Optionally, the pre-configuration information further comprises configuration information of a plurality of cell-defined synchronization information blocks (CD-SSBs) and mapping relationship between each CD-SSB and RO, in a case where the plurality of CD-SSBs and the plurality of NCD-SSBs correspond to at least two association periods:

[0015] The ROs mapped with the plurality of NCD-SSBs are located in a first association period, and the ROs mapped with the plurality of CD-SSBs are located in a second association period.

[0016] Or,

[0017] A part of the ROs mapped with the NCD-SSBs are located in the first association period, and the ROs mapped with the plurality of CD-SSBs and the ROs mapped with another part of the NCD-SSBs are located in the second association period.

[0018] Or,

[0019] The ROs mapped with the plurality of NCD-SSBs and a part of the ROs mapped with the CD-SSBs are located in the first association period, and the ROs mapped with another part of the CD-SSBs are located in the second association period.

[0020] Optionally, the pre-configuration information further comprises configuration information of a plurality of cell-defined synchronization information blocks (CD-SSBs) and mapping relationship between each CD-SSB and RO.

[0021] In a case where the quasi co-location parameter of the target CD-SSB is the same as the quasi co-location parameter of the target NCD-SSB, the time of the RO mapped with the target NCD-SSB overlaps with the time of the RO mapped with the target CD-SSB.

[0022] The target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0023] Optionally, the pre-configuration information further comprises configuration information of a plurality of cell-defined synchronization information blocks (CD-SSBs) and mapping relationship between each CD-SSB and RO.

[0024] The time of the RO mapped with the target NCD-SSB does not overlap with the time of the RO mapped with the target CD-SSB.

[0025] The target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0026] Optionally, the RO mapped with the target NCD-SSB and the RO mapped with the target CD-SSB are staggered in the same time slot.

[0027] Optionally, the pre-configuration information further comprises configuration information of a plurality of cell-defined synchronization information blocks (CD-SSBs) and mapping relationship between each CD-SSB and RO; in the case that the plurality of CD-SSBs and the plurality of NCD-SSBs correspond to a reference time slot, and the reference time slot comprises adjacent first and second time slots:

[0028] The ROs mapped with the plurality of NCD-SSBs are located in the first time slot, and the ROs mapped with the plurality of CD-SSBs are located in the second time slot.

[0029] Alternatively,

[0030] The ROs mapped with a part of NCD-SSBs and the ROs mapped with a part of CD-SSBs are staggered in the first time slot, and the ROs mapped with another part of NCD-SSBs and the ROs mapped with another part of CD-SSBs are staggered in the second time slot.

[0031] Optionally, in the case that the ROs mapped with a part of NCD-SSBs and the ROs mapped with a part of CD-SSBs are staggered in the first time slot, and the ROs mapped with another part of NCD-SSBs and the ROs mapped with another part of CD-SSBs are staggered in the second time slot:

[0032] The part of CD-SSBs comprises a first head CD-SSB, and the RO mapped with the first head CD-SSB is the earliest RO in the plurality of ROs included in the first time slot.

[0033] The other part of the CD-SSB includes a second header CD-SSB, and a RO mapped with the second header CD-SSB is a RO with the earliest time among a plurality of ROs included in the second time slot.

[0034] Optionally, before the sending of the pre-configuration information to the terminal, the method further comprises:

[0035] mapping the plurality of NCD-SSBs and the plurality of ROs according to pre-configuration radio resource control (RRC) parameters to generate the pre-configuration information.

[0036] In a second aspect, an embodiment of the present application provides a random access method applied to a terminal, the method comprising:

[0037] receiving pre-configuration information sent by a network side device, the pre-configuration information comprising configuration information of a plurality of non-cell definition-synchronization information blocks (NCD-SSBs), configuration information of a plurality of random access occasions (ROs), and mapping relationships between each NCD-SSB and RO;

[0038] sending a message 1 to the network side device on a RO mapped with a NCD-SSB according to the pre-configuration information, so that the network side device completes a random access procedure according to the message 1.

[0039] Optionally, the pre-configuration information further comprises configuration information of a plurality of cell definition-synchronization information blocks (CD-SSBs), and mapping relationships between each CD-SSB and RO.

[0040] In a case where a quasi co-location parameter of a target CD-SSB is different from a quasi co-location parameter of a target NCD-SSB:

[0041] a time of a RO mapped with the target CD-SSB is earlier than a time of a RO mapped with the target NCD-SSB, or a time of a RO mapped with the target CD-SSB is later than a time of a RO mapped with the target NCD-SSB.

[0042] wherein the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0043] Optionally, the pre-configuration information further comprises configuration information of a plurality of cell definition-synchronization information blocks (CD-SSBs), and mapping relationships between each CD-SSB and RO, in a case where the plurality of CD-SSBs and the plurality of NCD-SSBs correspond to at least two associated periods, wherein the associated period is one or more transmission periods of a physical random access channel (PRACH) of an associated synchronization information block (SSB).

[0044] The ROs mapped with the plurality of NCD-SSBs are located in a first association period, and the ROs mapped with the plurality of CD-SSBs are located in a second association period.

[0045] Alternatively,

[0046] The ROs mapped with a part of the NCD-SSBs are located in the first association period, the ROs mapped with another part of the NCD-SSBs and the ROs mapped with the plurality of CD-SSBs are located in the second association period.

[0047] Alternatively,

[0048] The ROs mapped with the plurality of NCD-SSBs and the ROs mapped with a part of the CD-SSBs are located in the first association period, and the ROs mapped with another part of the CD-SSBs are located in the second association period.

[0049] Optionally, the pre-configuration information further comprises configuration information of a plurality of cell-defined synchronization information blocks (CD-SSBs) and mapping relationship between each CD-SSB and an RO.

[0050] In a case where the quasi-co-location parameter of the target CD-SSB is the same as the quasi-co-location parameter of the target NCD-SSB, the time of the RO mapped with the target NCD-SSB and the time of the RO mapped with the target CD-SSB overlap.

[0051] The target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0052] Optionally, the pre-configuration information further comprises configuration information of a plurality of cell-defined synchronization information blocks (CD-SSBs) and mapping relationship between each CD-SSB and an RO.

[0053] The time of the RO mapped with the target NCD-SSB and the time of the RO mapped with the target CD-SSB do not overlap.

[0054] The target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0055] Optionally, the RO mapped with the target NCD-SSB and the RO mapped with the target CD-SSB are staggered in the same time slot.

[0056] Optionally, the pre-configuration information further comprises configuration information of a plurality of cell definition-synchronization signal block (CD-SSB) and mapping relationship between each CD-SSB and RO; in the case that the plurality of CD-SSB and the plurality of NCD-SSB correspond to a reference time slot, and the reference time slot comprises adjacent first and second time slots:

[0057] the ROs mapped with the plurality of NCD-SSB are located in the first time slot, and the ROs mapped with the plurality of CD-SSB are located in the second time slot;

[0058] or,

[0059] a part of the ROs mapped with NCD-SSB and a part of the ROs mapped with CD-SSB are staggered in the first time slot, and another part of the ROs mapped with NCD-SSB and another part of the ROs mapped with CD-SSB are staggered in the second time slot.

[0060] Optionally, in the case that a part of the ROs mapped with NCD-SSB and a part of the ROs mapped with CD-SSB are staggered in the first time slot, and another part of the ROs mapped with NCD-SSB and another part of the ROs mapped with CD-SSB are staggered in the second time slot:

[0061] the part of the CD-SSB comprises a first head CD-SSB, and the RO mapped with the first head CD-SSB is the earliest RO in the plurality of ROs included in the first time slot;

[0062] the other part of the CD-SSB comprises a second head CD-SSB, and the RO mapped with the second head CD-SSB is the earliest RO in the plurality of ROs included in the second time slot.

[0063] Optionally, the pre-configuration information is generated by the network side device according to a pre-configured radio resource control (RRC) parameter.

[0064] In a third aspect, an embodiment of the present application further provides a random access device applied to a network side device, comprising:

[0065] a first network sending module configured to send pre-configured pre-configuration information to a terminal, the pre-configuration information comprising configuration information of a plurality of non-cell definition-synchronization signal block (NCD-SSB), configuration information of a plurality of random access occasion (RO), and mapping relationship between each NCD-SSB and RO;

[0066] a first network receiving module configured to receive message 1 sent by the terminal on the RO mapped with the NCD-SSB according to the pre-configuration information, the message 1 being used to complete a random access process.

[0067] Fourthly, embodiments of this application also provide a random access device, applied to a terminal, comprising:

[0068] The first terminal receiving module receives pre-configuration information sent by the network-side device. The pre-configuration information includes configuration information of multiple non-cell definition-synchronization information blocks (NCD-SSB), configuration information of multiple random access times (RO), and the mapping relationship between each NCD-SSB and RO.

[0069] The first terminal sending module sends message 1 to the network-side device on the RO mapped to NCD-SSB according to the pre-configuration information, so that the network-side device completes the random access process according to message 1.

[0070] Fifthly, embodiments of this application also provide a communication device, including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the random access method as described in the first aspect, or implement the steps of the random access method as described in the second aspect.

[0071] In a sixth aspect, embodiments of this application also provide a readable storage medium storing a program or instructions that, when executed by a processor, implement the steps of the random access method as described in the first aspect, or implement the steps of the random access method as described in the second aspect.

[0072] In this embodiment, the network-side device sends pre-configuration information to the terminal. This pre-configuration information includes configuration information for multiple Non-Cell Definition-Synchronization Blocks (NCD-SSBs), configuration information for multiple Random Access Instances (ROs), and a mapping relationship between each NCD-SSB and RO. The device also receives message 1 sent by the terminal on the RO mapped to the NCD-SSB according to the pre-configuration information. Subsequently, the random access process is completed based on message 1. By adding a mapping scheme between NCD-SSBs and ROs, the waste of RO resources is reduced, and the time for the terminal to access the cell is shortened. Attached Figure Description

[0073] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0074] Figure 1 This is a block diagram of a wireless communication system applicable to embodiments of this application;

[0075] Figure 2 This is a flowchart illustrating a random access method provided in an embodiment of this application;

[0076] Figure 3 This is a schematic diagram illustrating a mapping relationship between SSB and RO provided in an embodiment of this application;

[0077] Figure 4 This is a schematic diagram illustrating another mapping relationship between SSB and RO provided in an embodiment of this application;

[0078] Figure 5 This is a schematic diagram illustrating yet another mapping relationship between SSB and RO provided in the embodiments of this application;

[0079] Figure 6 This is a schematic diagram of a process for selecting an RO mapped to an NCD-SSB to send message 1, provided in an embodiment of this application.

[0080] Figure 7 This is one of the schematic diagrams of the mapping scheme between SSB and RO provided in the embodiments of this application;

[0081] Figure 8 This is a second schematic diagram of the mapping scheme between SSB and RO provided in the embodiments of this application;

[0082] Figure 9 This is the third schematic diagram of the mapping scheme between SSB and RO provided in the embodiments of this application;

[0083] Figure 10 This is the fourth schematic diagram of the mapping scheme between SSB and RO provided in the embodiments of this application;

[0084] Figure 11 This is the fifth schematic diagram of the mapping scheme between SSB and RO provided in the embodiments of this application;

[0085] Figure 12 This is the sixth schematic diagram of the mapping scheme between SSB and RO provided in the embodiments of this application;

[0086] Figure 13 This is the seventh schematic diagram of the mapping scheme between SSB and RO provided in the embodiments of this application;

[0087] Figure 14 This is the eighth schematic diagram of the mapping scheme between SSB and RO provided in the embodiments of this application;

[0088] Figure 15 This is the ninth schematic diagram of the mapping scheme between SSB and RO provided in the embodiments of this application;

[0089] Figure 16This is the tenth schematic diagram of the mapping scheme between SSB and RO provided in the embodiments of this application;

[0090] Figure 17 This is eleventh of the schematic diagrams illustrating the mapping scheme between SSB and RO provided in the embodiments of this application;

[0091] Figure 18 This is the twelfth schematic diagram of the mapping scheme between SSB and RO provided in the embodiments of this application;

[0092] Figure 19 This is the thirteenth schematic diagram of the mapping scheme between SSB and RO provided in the embodiments of this application;

[0093] Figure 20 This is the fourteenth schematic diagram of the mapping scheme between SSB and RO provided in the embodiments of this application;

[0094] Figure 21 This is the fifteenth schematic diagram of the mapping scheme between SSB and RO provided in the embodiments of this application;

[0095] Figure 22 This is a flowchart illustrating another random access method provided in an embodiment of this application;

[0096] Figure 23 This is a schematic diagram of the structure of a random access device provided in an embodiment of this application;

[0097] Figure 24 This is a schematic diagram of another random access device provided in an embodiment of this application;

[0098] Figure 25 This is a schematic diagram of the structure of the communication device provided in the embodiments of this application. Detailed Implementation

[0099] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0100] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0101] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used in the systems and radio technologies mentioned above, as well as in other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description. These technologies can also be applied to applications beyond NR systems, such as 6th Generation (6G) communication systems.

[0102] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a terminal device or user equipment (UE). The terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), etc. Wearable devices include smartwatches, wristbands, headphones, glasses, etc. It should be noted that this application does not limit the specific type of terminal 11. Network-side device 12 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this application embodiment, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0103] The following description, in conjunction with the accompanying drawings, details an uplink transmission method, apparatus, terminal, and storage medium provided in this application through some embodiments and application scenarios.

[0104] Please see Figure 2 , Figure 2 This is a flowchart illustrating a random access method provided in an embodiment of this application, applied to network-side devices, such as... Figure 2 As shown, it includes the following steps:

[0105] Step 201: Send the pre-configured information to the terminal.

[0106] The pre-configuration information includes configuration information for multiple Non-Cell Definition-Synchronization Information Blocks (NCD-SSBs), configuration information for multiple Random Access Contexts (ROs), and the mapping relationship between each NCD-SSB and RO.

[0107] The pre-configured information includes a Synchronization Signal and PBCH block (SSB). The SSB can be used for initial access, measurement, Automatic Gain Control (AGC), and providing a Quasi Co-Location (QCL) source for the terminal. The SSB can be divided into Cell Defined Synchronization Block (CD-SSB) and Non-Cell Defined Synchronization Block (NCD-SSB).

[0108] The pre-configuration information includes not only the configuration information of multiple NCD-SSBs and the mapping relationship between each NCD-SSB and RO, but also the configuration information of multiple CD-SSBs and the mapping relationship between each CD-SSB and RO.

[0109] It should be noted that the mapping relationship between SSB (such as NCD-SSB or CD-SSB) and RO can be "one-to-many", "one-to-one", or "many-to-one".

[0110] For example, such as Figure 3 As shown, the SSB with index #1 can be associated with or mapped to 4 ROs (RO#1 to RO#4). This is called a "one-to-many" mapping relationship between the SSB and the RO. The user equipment (UE) can use the downlink receiving beam of the SSB with index #1 to send the corresponding message 1 (i.e., msg.1) on RO#1 to RO#4 respectively.

[0111] like Figure 4 As shown, SSB#1 to SSB#3 are associated or mapped to RO#1 to RO#3 respectively. This means that there is a one-to-one mapping relationship between SSB and RO. The UE can use the beam corresponding to the downlink receiving direction of the SSB index at the specified RO position to send the corresponding msg.1 on the specified RO index (for example, using the beam receiving the downlink receiving direction corresponding to SSB#1 to send the corresponding msg.1 on RO#1).

[0112] like Figure 5As shown, SSB#1 and SSB#2 are respectively mapped to the same RO#1. This is called a "many-to-one" mapping relationship between SSB and RO. The UE can use the downlink receive beam that receives SSB#1 or SSB#2 to send msg.1 sent on RO#1.

[0113] It should be noted that the terminal can obtain system messages, including the Master Information Block (MIB) and System Information Block 1 (SIB1), sent by the network-side device in broadcast form based on the SSB.

[0114] Step 202: Receive message 1 (msg.1) sent by the terminal on the RO mapped to NCD-SSB according to the pre-configuration information. Message 1 is used to complete the random access procedure.

[0115] It should be noted that before the network-side device receives msg.1 sent by the terminal on the RO mapped to NCD-SSB according to the pre-configuration information, the terminal will first determine the target RO among multiple ROs according to the pre-configuration information. The target RO is the RO of the best SSB mapping among the multiple SSBs mapped to the multiple ROs. If the best SSB is NCD-SSB, the network-side device will receive msg.1 sent by the terminal on the RO mapped to NCD-SSB; if the best SSB is CD-SSB, the network-side device will receive msg.1 sent by the terminal on the RO mapped to CD-SSB.

[0116] The criteria for determining the best SSB among multiple SSBs can be adaptively adjusted based on actual needs. For example, the SSB with the highest corresponding Reference Signal Receiving Power (RSRP) among multiple SSBs can be determined as the best SSB.

[0117] For example, such as Figure 6As shown, when the optimal SSB is NCD-SSB, the process of the terminal sending msg.1 on the RO mapped to the optimal SSB can be as follows: First, demodulate the NCD-SSB (i.e., the optimal SSB), and obtain the frequency domain position of the corresponding CD-SSB through the "pdcch-configSIB" parameter of the NCD-SSB's Master Information Block (MIB), and then demodulate the CD-SSB. Next, obtain the second parameter through System Information Block 1 (SIB1) of the demodulated CD-SSB. The second parameter includes the mapping configuration between the aforementioned NCD-SSB (optimal SSB) and the RO. Finally, the terminal sends msg.1 on the RO mapped to the aforementioned NCD-SSB (optimal SSB).

[0118] It should be noted that the second parameter can be understood as a parameter used to indicate the mapping relationship between multiple NCD-SSBs and multiple ROs (referring to configuring the mapping relationship between NCD-SSBs and ROs as one-to-many, many-to-one, or one-to-one).

[0119] In some implementations, the terminal can use the downlink receive beam that receives the aforementioned NCD-SSB (best SSB) to send msg.1 on the corresponding RO using the uplink transmit beam corresponding to the downlink receive beam (e.g., satisfying spatial relation).

[0120] After the network-side device receives msg.1 sent by the terminal, the terminal and the network-side device will perform the corresponding msg.2 to msg.4 interaction process to establish a communication link between the terminal and the network-side device.

[0121] In this embodiment of the application, by adding a mapping scheme between NCD-SSB and RO, the problem of wasting some RO resources that are not mapped to CD-SSB when the number of RO resources is not a multiple of the number of CD-SSBs is avoided. This not only reduces the waste of RO resources, but also shortens the time for the terminal to access the cell.

[0122] As an optional implementation, the pre-configuration information also includes configuration information for multiple cell definition-synchronization information blocks (CD-SSBs), and the mapping relationship between each CD-SSB and the RO.

[0123] When the quasi-co-address parameters of the target CD-SSB are different from those of the target NCD-SSB:

[0124] The time of the RO mapped to the target CD-SSB is earlier than the time of the RO mapped to the target NCD-SSB, or the time of the RO mapped to the target CD-SSB is later than the time of the RO mapped to the target NCD-SSB.

[0125] Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0126] For example, when the RO mapped to CD-SSB and the RO mapped to NCD-SSB are in the same association period, the network-side device can configure a set of CD-SSB (SS Burst set #1) and a set of NCD-SSB (SS Burst set #2) through the parameters "ssb-PosistionsInBurst" and "ncdssb-PosistionsInBurst", respectively. These include four CD-SSBs (CD-SSB#0 to CD-SSB#3 in SS Burst set #1) and three NCD-SSBs (NCD-SSB#0 to NCD-SSB#2 in SS Burst set #2). Simultaneously, the network-side device configures the mapping relationship between CD-SSB and RO as "one-to-one" through the first parameter and the mapping relationship between NCD-SSB and RO as "one-to-one" through the second parameter. At this time, the mapping relationship between SSB and RO can be as follows: Figure 7 As shown, CD-SSB#0~CD-SSB#3 are mapped or associated with RO#0~RO#3, and NCD-SSB#0~NCD-SSB#2 are mapped or associated with RO#4~RO#6; or, it can be as follows: Figure 8 As shown, NCD-SSB#0~NCD-SSB#2 is mapped or associated with RO#0~RO#2, and CD-SSB#0~CD-SSB#3 is mapped or associated with RO#3~RO#6.

[0127] It should be noted that when ROs mapped to CD-SSB and ROs mapped to NCD-SSB are in the same association period, the number of ROs can be greater than or equal to the sum of the number of NCD-SSBs and the number of CD-SSBs. That is, idle RO resources (referring to ROs that are neither mapped to NCD-SSBs nor to CD-SSBs) are allowed in this association period. In application, it is preferable to set the number of ROs to be equal to the sum of the number of NCD-SSBs and the number of CD-SSBs so that the RO resources in this association period are fully utilized.

[0128] The first parameter and the second parameter can be the same or different, and both can be parameters included in Radio Resource Control (RRC) information. For example, the first parameter and the second parameter can both be the “ssb-perRACH-OccasionAndCB-PreamblesPerSSB” parameter included in SIB1 of the RRC information.

[0129] In some implementations, the “ncdssb-PosistionsInBurst” parameter in the RRC information and the second parameter can be located in the “servringCellConfigCommonSIB” parameter in the SIB1 information or the “servringCellConfigCommon” parameter in the RRC information. For network-side devices and terminals, both the “ncdssb-PosistionsInBurst” parameter and the second parameter are optional configurations.

[0130] based on Figure 7 or Figure 8 As shown in the mapping configuration, the process of the terminal sending msg.1 through the RO mapped to NCD-SSB can still be as follows: Figure 6 As shown (when the optimal SSB is NCD-SSB), further details will not be elaborated upon to avoid repetition.

[0131] In this embodiment, when the RO mapped to CD-SSB and the RO mapped to NCD-SSB are in the same association period, mapping NCD-SSB to the RO resources in the association period that are not mapped to CD-SSB can conveniently add a mapping scheme between NCD-SSB and RO without changing the existing mapping relationship between CD-SSB and RO.

[0132] Optionally, the pre-configuration information also includes configuration information for multiple Cell Definition-Synchronization Information Blocks (CD-SSBs) and the mapping relationship between each CD-SSB and the RO. In the case where the multiple CD-SSBs and the multiple NCD-SSBs correspond to at least two association periods, the association period is one or more transmission periods of the Physical Random Access Channel (PRACH) of the associated synchronization information block SSB.

[0133] The ROs mapped to the plurality of NCD-SSBs are located within a first association period, and the ROs mapped to the plurality of CD-SSBs are located within a second association period;

[0134] or,

[0135] The ROs mapped to a portion of NCD-SSBs are located within the first association period, while the ROs mapped to another portion of NCD-SSBs and the ROs mapped to the plurality of CD-SSBs are located within the second association period.

[0136] or,

[0137] The ROs mapped to the plurality of NCD-SSBs and the ROs mapped to a portion of CD-SSBs are located within the first association period, while the ROs mapped to another portion of CD-SSBs are located within the second association period.

[0138] It should be noted that multiple NCD-SSBs include at least two NCD-SSBs, a portion of NCD-SSBs includes at least one NCD-SSB, and another portion of NCD-SSBs also includes at least one NCD-SSB; similarly, multiple CD-SSBs include at least two CD-SSBs, a portion of CD-SSBs includes at least one CD-SSB, and another portion of CD-SSBs also includes at least one CD-SSB.

[0139] Network-side devices can determine the mapping relationship between a set of SSBs (SSB Burst set) and the ROs (Redirectories) in the configuration period of N Physical Random Access Channels (PRACH) through RRC parameters, etc. The configuration of the associated period is shown in Table 1:

[0140]

[0141]

[0142] Table 1

[0143] In this implementation, by adding an association period on top of the existing association period, the mapping relationship between the existing CD-SSB and RO can be changed, enabling the NCD-SSB and / or CD-SSB to be mapped to more ROs, thereby shortening the time for the UE to access the cell.

[0144] For example, if the network-side device is configured to associate a set of SSBs (SS Burst sets) with a maximum of one PRACH configuration period of 10 milliseconds, and the number of associated periods is 1; to achieve the mapping configuration between NCD-SSB and RO, a set of SSBs (SS Burst sets) can be configured to include a set of CD-SSBs (Non-Cell Define SS Burst sets) and a set of NCD-SSBs (Cell Define SS Burst sets). In this case, the number of associated periods can be set to 2 (or 4 / 8 / 16). The mapping relationship between NCD-SSB and RO can be configured based on the aforementioned second parameter.

[0145] For example, when the plurality of NCD-SSBs and the plurality of CD-SSBs correspond to at least two associated periods, and the ROs mapped to CD-SSBs and the ROs mapped to NCD-SSBs are located in different associated periods, the network-side device can configure a set of CD-SSBs (SS Burst set #1) and a set of NCD-SSBs (SS Burst set #2) using the parameters "ssb-PosistionsInBurst" and "ncdssb-PosistionsInBurst," respectively. These include 5 CD-SSBs (CD-SSB#0 to CD-SSB#4 in SS Burst set #1) and 5 NCD-SSBs (NCD-SSB#0 to NCD-SSB#4 in SS Burst set #2). Simultaneously, the network-side device configures the mapping relationship between CD-SSBs and ROs as "one-to-one" using the first parameter and the mapping relationship between NCD-SSBs and ROs as "one-to-one" using the second parameter. In this case, the mapping relationship between SSBs and ROs can be as follows: Figure 9 As shown, CD-SSB#0 to CD-SSB#4 are mapped or associated with RO#0 to RO#4 within association period 1, and NCD-SSB#0 to NCD-SSB#4 are mapped or associated with RO#0 to RO#4 within association period 2; or, it can be as follows Figure 10 As shown, NCD-SSB#0 to NCD-SSB#4 are mapped or associated with RO#0 to RO#4 within association period 1, and CD-SSB#0 to CD-SSB#4 are mapped or associated with RO#0 to RO#4 within association period 2.

[0146] It should be noted that when ROs mapped to multiple CD-SSBs and ROs mapped to multiple NCD-SSBs are located in different association periods, the number of ROs in the association period can be greater than or equal to the number of NCD-SSBs and / or the number of CD-SSBs. That is, idle RO resources are allowed in the association period (referring to ROs that are not mapped to NCD-SSBs in the association period corresponding to NCD-SSBs, and / or ROs that are not mapped to CD-SSBs in the association period corresponding to CD-SSBs).

[0147] For example, when the plurality of NCD-SSBs and the plurality of CD-SSBs correspond to at least two associated periods, the network-side device can configure a set of CD-SSBs (SS Burst set #1) and a set of NCD-SSBs (SS Burst set #2) using the parameters "ssb-PosistionsInBurst" and "ncdssb-PosistionsInBurst," respectively. These include four CD-SSBs (CD-SSB#0 to CD-SSB#3 in SS Burst set #1) and four NCD-SSBs (NCD-SSB#0 to NCD-SSB#3 in SS Burst set #2). Simultaneously, the network-side device configures the mapping relationship between CD-SSBs and ROs as one-to-one using the first parameter and the mapping relationship between NCD-SSBs and ROs as one-to-one using the second parameter. In this case, the mapping relationship between SSBs and ROs can be as follows: Figure 11 As shown, CD-SSB#0 to CD-SSB#3 are mapped or associated with RO#0 to RO#3 within association period 1; NCD-SSB#0 (which can be understood as the second NCD-SSB) is mapped or associated with RO#4 within association period 1; and NCD-SSB#1 to NCD-SSB#3 (which can be understood as the first NCD-SSB) are mapped or associated with RO#0 to RO#2 within association period 2. Alternatively, it can be as follows: Figure 12 As shown, NCD-SSB#0 to NCD-SSB#3 are mapped or associated with RO#0 to RO#3 within association period 1, CD-SSB#0 (which can be understood as the first CD-SSB) is mapped or associated with RO#4 within association period 1, and CD-SSB#1 to CD-SSB#3 (which can be understood as the second CD-SSB) are mapped or associated with RO#0 to RO#2 within association period 2.

[0148] As an optional implementation, the pre-configuration information also includes configuration information of multiple cell definition-synchronization information blocks (CD-SSBs) and mapping relationship between each CD-SSB and RO. When the quasi-co-address parameters of the target CD-SSB are the same as those of the target NCD-SSB, the time of the RO mapped to the target NCD-SSB overlaps with the time of the RO mapped to the target CD-SSB.

[0149] Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0150] The fact that the quasi-co-location parameters of the target CD-SSB are the same as those of the target NCD-SSB can be understood as the fact that each CD-SSB in the multiple CD-SSBs and each NCD-SSB in the multiple NCD-SSBs have the same quasi-co-location (QCL).

[0151] In this embodiment, when the quasi-co-address parameters of the target CD-SSB are the same as those of the target NCD-SSB, by setting the time of the RO mapped to the target NCD-SSB to overlap with the time of the RO mapped to the target CD-SSB, the existing mapping relationship between CD-SSB and RO can be changed, so that the NCD-SSB and RO can be fully mapped (not only mapping ROs already mapped to CD-SSB, but also mapping ROs not mapped to CD-SSB), thereby shortening the UE access time to the cell.

[0152] For example, network-side devices can configure a set of CD-SSBs (SS Burst set #1) and a set of NCD-SSBs (SS Burst set #2) using the parameters "ssb-PosistionsInBurst" and "ncdssb-PosistionsInBurst," respectively. These include three CD-SSBs (CD-SSB#0 to CD-SSB#2 in SS Burst set #1) and four NCD-SSBs (NCD-SSB#0 to NCD-SSB#3 in SS Burst set #2). Simultaneously, the network-side device configures the mapping relationship between CD-SSBs and ROs as one-to-one using the first parameter and the mapping relationship between NCD-SSBs and ROs as one-to-one using the second parameter. In this case, the mapping relationship between SSBs and ROs can be as follows: Figure 13As shown, CD-SSB#0~CD-SSB#2 are mapped or associated with RO#0~RO#2, and NCD-SSB#0~NCD-SSB#3 are mapped or associated with RO#1~RO#4.

[0153] It should be noted that the RO mapped to the target CD-SSB can also be a subset of the RO mapped to the target NCD-SSB. In this case, the mapping relationship between SSB and RO in the above example can be that CD-SSB#0~CD-SSB#2 is mapped or associated with RO#0~RO#2, and NCD-SSB#0~NCD-SSB#3 is mapped or associated with RO#0~RO#3.

[0154] As an optional implementation, the pre-configuration information also includes configuration information for multiple cell definition-synchronization information blocks (CD-SSBs), and the mapping relationship between each CD-SSB and the RO; the time of the RO mapped to the target NCD-SSB and the time of the RO mapped to the target CD-SSB do not overlap.

[0155] Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0156] In this implementation, CD-SSB and NCD-SSB are mapped to different ROs (e.g., cross-mapping) to make full use of RO resources that are not mapped by CD-SSB and to facilitate the addition of new mapping schemes between NCD-SSB and RO.

[0157] Optionally, the ROs mapped to the target NCD-SSB and the ROs mapped to the target CD-SSB are alternately set in the same time slot.

[0158] In this optional approach, assuming that both the ROs mapped to NCD-SSB and the ROs mapped to CD-SSB are located in RO time slots, the method of interleaving the ROs mapped to NCD-SSB and CD-SSB within the RO time slots can adapt to the changing mapping schemes between CD-SSB and RO in real-world scenarios without changing the existing mapping scheme between CD-SSB and RO. This allows for the full utilization of RO resources that are not mapped to CD-SSB in the existing configuration. This not only reduces the waste of RO resources and shortens the time for terminals to access the cell, but also reduces the difficulty of adding a mapping scheme between NCD-SSB and RO in the existing network configuration.

[0159] For example, see Figure 14 and Figure 15A single RO slot contains 12 ROs. Network-side devices can configure a CD-SSB (SS Burst set #1) and a NCD-SSB (SS Burst set #2) using the parameters "ssb-PosistionsInBurst" and "ncdssb-PosistionsInBurst," respectively. These include three CD-SSBs (CD-SSB#0 to CD-SSB#2 in SS Burst set #1) and three NCD-SSBs (NCD-SSB#0 to NCD-SSB#2 in SS Burst set #2). Simultaneously, the network-side device configures the mapping relationship between CD-SSBs and ROs as "one-to-many" using the first parameter and the mapping relationship between NCD-SSBs and ROs as "one-to-many" using the second parameter. At this point, as... Figure 14 As shown, CD-SSB#0 to CD-SSB#2 are mapped or associated with RO#0, RO#1, RO#4, RO#5, RO#8, and RO#9, and NCD-SSB#0 to NCD-SSB#2 are mapped or associated with RO#2, RO#3, RO#6, RO#7, RO#10, and RO#11, or, as... Figure 15 As shown, NCD-SSB#0~NCD-SSB#2 are mapped or associated with RO#0, RO#1, RO#4, RO#5, RO#8, and RO#9, and CD-SSB#0~CD-SSB#2 are mapped or associated with RO#2, RO#3, RO#6, RO#7, RO#10, and RO#11.

[0160] For example, a single RO slot contains 12 ROs. The network-side equipment is configured with one set of CD-SSBs (SSBurst set #1) and one set of NCD-SSBs (SS Burst set #2), comprising 6 CD-SSBs (CD-SSB#0 to CD-SSB#5 in SS Burst set #1) and 6 NCD-SSBs (NCD-SSB#0 to NCD-SSB#5 in SS Burst set #2), respectively. The mapping relationship between CD-SSBs and ROs is one-to-one, and the mapping relationship between NCD-SSBs and ROs is also one-to-one. In this case, such as... Figure 16As shown, CD-SSB#0 to CD-SSB#5 are mapped or associated with RO#0, RO#2, RO#4, RO#6, RO#8, and RO#10 in sequence, and NCD-SSB#0 to NCD-SSB#5 are mapped or associated with RO#1, RO#3, RO#5, RO#7, RO#9, and RO#11 in sequence (in actual applications, the mapping order between NCD-SSB and CD-SSB and RO is not restricted; it is also possible to set NCD-SSB#0 to NCD-SSB#5 to be mapped or associated with RO#0, RO#2, RO#4, RO#6, RO#8, and RO#10 in sequence, and CD-SSB#0 to CD-SSB#5 to be mapped or associated with RO#1, RO#3, RO#5, RO#7, RO#9, and RO#11 in sequence).

[0161] For example, a single RO slot contains 12 ROs. The network-side equipment is configured with one set of CD-SSBs (SSBurst set #1) and one set of NCD-SSBs (SS Burst set #2), comprising 5 CD-SSBs (CD-SSB#0 to CD-SSB#4 in SS Burst set #1) and 7 NCD-SSBs (NCD-SSB#0 to NCD-SSB#6 in SS Burst set #2), respectively. The mapping relationship between CD-SSBs and ROs is one-to-one, and the mapping relationship between NCD-SSBs and ROs is also one-to-one. In this case, the mapping relationship between SSBs and ROs can be as follows: Figure 17 As shown, CD-SSB#0 to CD-SSB#4 are mapped or associated with RO#0, RO#1, RO#3, RO#8, and RO#10 respectively, and NCD-SSB#0 to NCD-SSB#6 are mapped or associated with RO#2, RO#4, RO#5, RO#6, RO#7, RO#9, and RO#11 respectively; or, as Figure 18 As shown, CD-SSB#0 to CD-SSB#4 are mapped or associated with RO#0, RO#1, RO#2, RO#3, and RO#5 respectively, and NCD-SSB#0 to NCD-SSB#6 are mapped or associated with RO#4, RO#6, RO#7, RO#8, RO#9, RO#10, and RO#11 respectively.

[0162] It should be noted that the above examples are only used to illustrate a partial scheme for interleaving the ROs mapped to NCD-SSB and CD-SSB within the RO time slot. In practical applications, please refer to... Figure 14 , 15 Alternatively, as shown in scheme 16, the ROs mapped to NCD-SSB and the ROs mapped to CD-SSB are sequentially staggered within the RO time slot; reference can also be made to...Figure 17 or Figure 18 The scheme shown involves randomly misaligning the ROs mapped to NCD-SSB and the ROs mapped to CD-SSB within the RO time slot. This application does not limit this aspect.

[0163] Optionally, the pre-configuration information may also include configuration information for multiple cell definition-synchronization information blocks (CD-SSBs) and the mapping relationship between each CD-SSB and the RO; in the case where the multiple CD-SSBs and the multiple NCD-SSBs correspond to reference time slots, and the reference time slots include adjacent first and second time slots.

[0164] The ROs mapped to the plurality of NCD-SSBs are located in the first time slot, and the ROs mapped to the plurality of CD-SSBs are located in the second time slot;

[0165] or,

[0166] The ROs mapped to a portion of NCD-SSB and the ROs mapped to a portion of CD-SSB are interleaved in the first time slot, and the ROs mapped to another portion of NCD-SSB and the ROs mapped to another portion of CD-SSB are interleaved in the second time slot.

[0167] It should be noted that in Frequency Range 1 (FR1), the reference time slot should be understood as the time slot length occupied when the sub-carrier spacing (SCS) is 15kHz; in Frequency Range 2 (FR2), the reference time slot should be understood as the time slot length occupied when the sub-carrier spacing is 60kHz.

[0168] Meanwhile, in band 1, if one set of RO resources is configured in the reference time slot, two sets of RO resources can be configured in the time slot length occupied when the sub-carrier spacing (SCS) is 30kHz. Similarly, in band 2, if one set of RO resources is configured in the reference time slot, two sets of RO resources can be configured in the time slot length occupied when the sub-carrier spacing (SCS) is 120kHz.

[0169] For example, such as Figure 19As shown, when the reference time slot includes RO time slot 1 and RO time slot 2, CD-SSB#0 to CD-SSB#2 are mapped or associated with RO#0 to RO#5 in RO time slot 1, respectively, and NCD-SSB#0 to NCD-SSB#2 are mapped or associated with RO#6 to RO#11 in RO time slot 2, respectively. It should be noted that NCD-SSB#0 to NCD-SSB#2 can also be set to be mapped or associated with RO#0 to RO#5 in RO time slot 1, and CD-SSB#0 to CD-SSB#2 can be mapped or associated with RO#6 to RO#11 in RO time slot 2, respectively. Through the above settings (meaning that the RO mapped with the multiple NCD-SSBs is located in the first time slot, and the RO mapped with the multiple CD-SSBs is located in the second time slot), the RO mapped with CD-SSBs and the RO mapped with NCD-SSBs are located in different sub-time slots of the reference time slot.

[0170] For example, such as Figure 20 As shown, when the reference time slots include RO time slot 1 and RO time slot 2, CD-SSB#0 to CD-SSB#1 are mapped or associated with RO#0 to RO#1 and RO#4 to RO#5 in RO time slot 1, respectively; NCD-SSB#0 is mapped or associated with RO#2 to RO#3 in RO time slot 1; NCD-SSB#1 to NCD-SSB#2 are mapped or associated with RO#6 to RO#7 and RO#10 to RO#11 in RO time slot 2, respectively; and CD-SSB#2 is mapped or associated with RO#8 to RO#9 in RO time slot 2. It should be noted that NCD-SSB#0 to NCD-SSB#1 can also be set to be mapped or associated with RO#0 to RO#1 and RO#4 to RO#5 in RO time slot 1, respectively. The RO#2 to RO#3 in RO time slot 1 are mapped or associated with each other; CD-SSB#1 to CD-SSB#2 are mapped or associated with RO#6 to RO#7 and RO#10 to RO#11 in RO time slot 2, respectively; NCD-SSB#2 is mapped or associated with RO#8 to RO#9 in RO time slot 2. Through the above settings (referring to the RO mapped with a part of NCD-SSB and the RO mapped with a part of CD-SSB being alternately set in the first time slot, and the RO mapped with another part of NCD-SSB and the RO mapped with another part of CD-SSB being alternately set in the second time slot), each sub-time slot (such as RO time slot 1 or RO time slot 2) included in the reference time slot includes both RO mapped with CD-SSB and RO mapped with NCD-SSB.

[0171] Optionally, if the ROs mapped to a portion of NCD-SSBs and the ROs mapped to a portion of CD-SSBs are interleaved in the first time slot, and the ROs mapped to another portion of NCD-SSBs and the ROs mapped to another portion of CD-SSBs are interleaved in the second time slot:

[0172] The portion of CD-SSB includes a first header CD-SSB, and the RO mapped to the first header CD-SSB is the earliest corresponding RO among the multiple ROs included in the first time slot.

[0173] The other part of the CD-SSB includes a second head CD-SSB, and the RO mapped to the second head CD-SSB is the earliest corresponding RO among the multiple ROs included in the second time slot.

[0174] In this implementation, the first RO of each sub-time slot within the reference time slot is mapped or associated with the CD-SSB. This is to adapt to the network-side equipment's measure of uniformly configuring the mapping scheme between the CD-SSB and RO for each sub-time slot within the reference time slot, thus facilitating the addition of new mapping schemes between the NCD-SSB and RO.

[0175] For example, such as Figure 21 As shown, when the reference time slots include RO time slot 1 and RO time slot 2, CD-SSB#0 to CD-SSB#1 are mapped or associated with RO#0 to RO#1 and RO#4 to RO#5 in RO time slot 1, respectively. NCD-SSB#0 is mapped or associated with RO#2 to RO#3 in RO time slot 1. CD-SSB#2 to CD-SSB#3 are mapped or associated with RO#6 to RO#7 and RO#10 to RO#11 in RO time slot 2, respectively. NCD-SSB#1 is mapped or associated with RO#8 to RO#9 in RO time slot 2 (RO#0 in RO time slot 1 and RO#6 in RO time slot 2 can be understood as ROs mapped to the first header CD-SSB or the second header CD-SSB).

[0176] As an optional implementation, before sending the pre-configuration information to the terminal, the method further includes:

[0177] Based on the pre-configured Radio Resource Control (RRC) parameters, multiple NCD-SSBs and multiple ROs are mapped to generate pre-configured information.

[0178] In this implementation, the mapping scheme between NCD-SSB and RO is configured through the relevant parameters already set in the RRC parameters to avoid the problem of RO resource waste and shorten the time for the terminal to access the cell.

[0179] Please see Figure 22 ,Figure 22 This is a flowchart of another random access method provided in an embodiment of this application, applied to a terminal, such as... Figure 22 As shown, it includes the following steps:

[0180] Step 2201: Receive pre-configuration information sent by the network-side device.

[0181] The pre-configuration information includes configuration information for multiple Non-Cell Definition-Synchronization Information Blocks (NCD-SSBs), configuration information for multiple Random Access Contexts (ROs), and the mapping relationship between each NCD-SSB and RO.

[0182] Step 2202: Send message 1 to the network-side device on the RO mapped to NCD-SSB according to the pre-configuration information, so that the network-side device completes the random access process according to message 1.

[0183] Optionally, the pre-configuration information may also include configuration information for multiple cell definition-synchronization information blocks (CD-SSBs) and the mapping relationship between each CD-SSB and the RO.

[0184] When the quasi-co-address parameters of the target CD-SSB are different from those of the target NCD-SSB:

[0185] The time of the RO mapped to the target CD-SSB is earlier than the time of the RO mapped to the target NCD-SSB, or the time of the RO mapped to the target CD-SSB is later than the time of the RO mapped to the target NCD-SSB.

[0186] Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0187] Optionally, the pre-configuration information also includes configuration information for multiple Cell Definition-Synchronization Information Blocks (CD-SSBs) and the mapping relationship between each CD-SSB and the RO. In the case where the multiple CD-SSBs and the multiple NCD-SSBs correspond to at least two association periods, the association period is one or more transmission periods of the Physical Random Access Channel (PRACH) of the associated synchronization information block SSB.

[0188] The ROs mapped to the plurality of NCD-SSBs are located within a first association period, and the ROs mapped to the plurality of CD-SSBs are located within a second association period;

[0189] or,

[0190] The ROs mapped to a portion of NCD-SSBs are located within the first association period, while the ROs mapped to another portion of NCD-SSBs and the ROs mapped to the plurality of CD-SSBs are located within the second association period.

[0191] or,

[0192] The ROs mapped to the plurality of NCD-SSBs and the ROs mapped to a portion of CD-SSBs are located within the first association period, while the ROs mapped to another portion of CD-SSBs are located within the second association period.

[0193] Optionally, the pre-configuration information may also include configuration information for multiple cell definition-synchronization information blocks (CD-SSBs) and the mapping relationship between each CD-SSB and the RO.

[0194] When the quasi-co-address parameters of the target CD-SSB are the same as those of the target NCD-SSB, the time of the RO mapped to the target NCD-SSB overlaps with the time of the RO mapped to the target CD-SSB.

[0195] Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0196] Optionally, the pre-configuration information may also include configuration information for multiple cell definition-synchronization information blocks (CD-SSBs) and the mapping relationship between each CD-SSB and the RO.

[0197] The time of RO mapped to the target NCD-SSB does not overlap with the time of RO mapped to the target CD-SSB;

[0198] Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0199] Optionally, the ROs mapped to the target NCD-SSB and the ROs mapped to the target CD-SSB are alternately set in the same time slot.

[0200] Optionally, the pre-configuration information also includes configuration information for multiple Cell Definition-Synchronization Information Blocks (CD-SSBs), and the mapping relationship between each CD-SSB and the RO; in the case where the multiple CD-SSBs and the multiple NCD-SSBs correspond to reference time slots, and the reference time slots include adjacent first and second time slots:

[0201] The ROs mapped to the plurality of NCD-SSBs are located in the first time slot, and the ROs mapped to the plurality of CD-SSBs are located in the second time slot;

[0202] or,

[0203] The ROs mapped to a portion of NCD-SSB and the ROs mapped to a portion of CD-SSB are interleaved in the first time slot, and the ROs mapped to another portion of NCD-SSB and the ROs mapped to another portion of CD-SSB are interleaved in the second time slot.

[0204] Optionally, if the ROs mapped to a portion of NCD-SSBs and the ROs mapped to a portion of CD-SSBs are interleaved in the first time slot, and the ROs mapped to another portion of NCD-SSBs and the ROs mapped to another portion of CD-SSBs are interleaved in the second time slot:

[0205] The portion of CD-SSB includes a first header CD-SSB, and the RO mapped to the first header CD-SSB is the earliest corresponding RO among the multiple ROs included in the first time slot.

[0206] The other part of the CD-SSB includes a second head CD-SSB, and the RO mapped to the second head CD-SSB is the earliest corresponding RO among the multiple ROs included in the second time slot.

[0207] Optionally, the pre-configuration information is generated by the network-side device based on pre-configured Radio Resource Control (RRC) parameters.

[0208] It should be noted that this embodiment is used as a reference for... Figure 2 The implementation method of the terminal corresponding to the illustrated embodiment can be found in the following examples. Figure 2 To avoid repetition, the relevant descriptions of the embodiments shown will not be repeated in this embodiment. In this embodiment, since the terminal can send msg.1 to the network-side device through the RO mapped to the NCD-SSB, so that the network side can complete the random access procedure with the terminal based on msg.1, this can enrich the RO resources available to the terminal, improve the efficiency of establishing a communication link between the terminal and the network-side device, and shorten the time for the terminal to access the cell.

[0209] It should be noted that the random access method provided in this application embodiment can be executed by a random access device or a control module within that random access device for executing the random access method. This application embodiment uses the execution of the random access method by a random access device as an example to illustrate the random access device provided in this application embodiment.

[0210] Please see Figure 23 ,Figure 23 This is a schematic diagram of the structure of a random access device 2300 provided in an embodiment of this application, applied to network-side equipment, such as... Figure 23 As shown, it includes:

[0211] The first network sending module 2301 is used to send pre-configuration information to the terminal. The pre-configuration information includes configuration information of multiple non-cell definition-synchronization information blocks (NCD-SSB), configuration information of multiple random access opportunities (RO), and mapping relationship between each NCD-SSB and RO.

[0212] The first network receiving module 2302 is used to receive message 1 sent by the terminal on the RO mapped to the NCD-SSB according to the pre-configuration information. The message 1 is used to complete the random access process.

[0213] Optionally, the pre-configuration information may also include configuration information for multiple cell definition-synchronization information blocks (CD-SSBs) and the mapping relationship between each CD-SSB and the RO.

[0214] When the quasi-co-address parameters of the target CD-SSB are different from those of the target NCD-SSB:

[0215] The time of the RO mapped to the target CD-SSB is earlier than the time of the RO mapped to the target NCD-SSB, or the time of the RO mapped to the target CD-SSB is later than the time of the RO mapped to the target NCD-SSB.

[0216] Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0217] Optionally, the pre-configuration information also includes configuration information for multiple Cell Definition-Synchronization Information Blocks (CD-SSBs) and the mapping relationship between each CD-SSB and the RO. In the case where the multiple CD-SSBs and the multiple NCD-SSBs correspond to at least two association periods, the association period is one or more transmission periods of the Physical Random Access Channel (PRACH) of the associated synchronization information block SSB.

[0218] The ROs mapped to the plurality of NCD-SSBs are located within a first association period, and the ROs mapped to the plurality of CD-SSBs are located within a second association period;

[0219] or,

[0220] The ROs mapped to a portion of NCD-SSBs are located within the first association period, while the ROs mapped to another portion of NCD-SSBs and the ROs mapped to the plurality of CD-SSBs are located within the second association period.

[0221] or,

[0222] The ROs mapped to the plurality of NCD-SSBs and the ROs mapped to a portion of CD-SSBs are located within the first association period, while the ROs mapped to another portion of CD-SSBs are located within the second association period.

[0223] Optionally, the pre-configuration information may also include configuration information for multiple cell definition-synchronization information blocks (CD-SSBs) and the mapping relationship between each CD-SSB and the RO.

[0224] When the quasi-co-address parameters of the target CD-SSB are the same as those of the target NCD-SSB, the time of the RO mapped to the target NCD-SSB overlaps with the time of the RO mapped to the target CD-SSB.

[0225] Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0226] Optionally, the pre-configuration information may also include configuration information for multiple cell definition-synchronization information blocks (CD-SSBs) and the mapping relationship between each CD-SSB and the RO.

[0227] The time of RO mapped to the target NCD-SSB does not overlap with the time of RO mapped to the target CD-SSB;

[0228] Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0229] Optionally, the ROs mapped to the target NCD-SSB and the ROs mapped to the target CD-SSB are alternately set in the same time slot.

[0230] Optionally, the pre-configuration information also includes configuration information for multiple Cell Definition-Synchronization Information Blocks (CD-SSBs), and the mapping relationship between each CD-SSB and the RO; in the case where the multiple CD-SSBs and the multiple NCD-SSBs correspond to reference time slots, and the reference time slots include adjacent first and second time slots:

[0231] The ROs mapped to the plurality of NCD-SSBs are located in the first time slot, and the ROs mapped to the plurality of CD-SSBs are located in the second time slot;

[0232] or,

[0233] The ROs mapped to a portion of NCD-SSB and the ROs mapped to a portion of CD-SSB are interleaved in the first time slot, and the ROs mapped to another portion of NCD-SSB and the ROs mapped to another portion of CD-SSB are interleaved in the second time slot.

[0234] Optionally, if the ROs mapped to a portion of NCD-SSBs and the ROs mapped to a portion of CD-SSBs are interleaved in the first time slot, and the ROs mapped to another portion of NCD-SSBs and the ROs mapped to another portion of CD-SSBs are interleaved in the second time slot:

[0235] The portion of CD-SSB includes a first header CD-SSB, and the RO mapped to the first header CD-SSB is the earliest corresponding RO among the multiple ROs included in the first time slot.

[0236] The other part of the CD-SSB includes a second head CD-SSB, and the RO mapped to the second head CD-SSB is the earliest corresponding RO among the multiple ROs included in the second time slot.

[0237] Optionally, the random access device 2300 further includes a configuration module, which is used for:

[0238] Based on the pre-configured Radio Resource Control (RRC) parameters, multiple NCD-SSBs and multiple ROs are mapped to generate pre-configured information.

[0239] The random access device in the embodiments of this application can be a device, such as a device with an operating system or an electronic device, or a component, integrated circuit or chip in a network-side device. The embodiments of this application do not specifically limit it.

[0240] The random access device in this application embodiment can reduce the waste of RO resources and shorten the time for the terminal to access the cell by adding a mapping scheme between NCD-SSB and RO.

[0241] The random access device provided in this application embodiment can achieve... Figure 2 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0242] Please see Figure 24 , Figure 24This is a schematic diagram of another random access device 2400 provided in this application embodiment, applied to a terminal, such as... Figure 24 As shown, it includes:

[0243] 2401. First terminal receiving module, used to receive pre-configuration information sent by network-side devices.

[0244] The pre-configuration information includes configuration information for multiple Non-Cell Definition-Synchronization Information Blocks (NCD-SSBs), configuration information for multiple Random Access Contexts (ROs), and the mapping relationship between each NCD-SSB and RO.

[0245] 2402. A first terminal sending module is used to send message 1 to the network-side device on the RO mapped to NCD-SSB according to the pre-configuration information, so that the network-side device completes the random access process according to message 1.

[0246] Optionally, the pre-configuration information may also include configuration information for multiple cell definition-synchronization information blocks (CD-SSBs) and the mapping relationship between each CD-SSB and the RO.

[0247] When the quasi-co-address parameters of the target CD-SSB are different from those of the target NCD-SSB:

[0248] The time of the RO mapped to the target CD-SSB is earlier than the time of the RO mapped to the target NCD-SSB, or the time of the RO mapped to the target CD-SSB is later than the time of the RO mapped to the target NCD-SSB.

[0249] Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0250] Optionally, the pre-configuration information also includes configuration information for multiple Cell Definition-Synchronization Information Blocks (CD-SSBs) and the mapping relationship between each CD-SSB and the RO. In the case where the multiple CD-SSBs and the multiple NCD-SSBs correspond to at least two association periods, the association period is one or more transmission periods of the Physical Random Access Channel (PRACH) of the associated synchronization information block SSB.

[0251] The ROs mapped to the plurality of NCD-SSBs are located within a first association period, and the ROs mapped to the plurality of CD-SSBs are located within a second association period;

[0252] or,

[0253] The ROs mapped to a portion of NCD-SSBs are located within the first association period, while the ROs mapped to another portion of NCD-SSBs and the ROs mapped to the plurality of CD-SSBs are located within the second association period.

[0254] or,

[0255] The ROs mapped to the plurality of NCD-SSBs and the ROs mapped to a portion of CD-SSBs are located within the first association period, while the ROs mapped to another portion of CD-SSBs are located within the second association period.

[0256] Optionally, the pre-configuration information may also include configuration information for multiple cell definition-synchronization information blocks (CD-SSBs) and the mapping relationship between each CD-SSB and the RO.

[0257] When the quasi-co-address parameters of the target CD-SSB are the same as those of the target NCD-SSB, the time of the RO mapped to the target NCD-SSB overlaps with the time of the RO mapped to the target CD-SSB.

[0258] Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0259] Optionally, the pre-configuration information may also include configuration information for multiple cell definition-synchronization information blocks (CD-SSBs) and the mapping relationship between each CD-SSB and the RO.

[0260] The time of RO mapped to the target NCD-SSB does not overlap with the time of RO mapped to the target CD-SSB;

[0261] Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

[0262] Optionally, the ROs mapped to the target NCD-SSB and the ROs mapped to the target CD-SSB are alternately set in the same time slot.

[0263] Optionally, the pre-configuration information also includes configuration information for multiple Cell Definition-Synchronization Information Blocks (CD-SSBs), and the mapping relationship between each CD-SSB and the RO; in the case where the multiple CD-SSBs and the multiple NCD-SSBs correspond to reference time slots, and the reference time slots include adjacent first and second time slots:

[0264] The ROs mapped to the plurality of NCD-SSBs are located in the first time slot, and the ROs mapped to the plurality of CD-SSBs are located in the second time slot;

[0265] or,

[0266] The ROs mapped to a portion of NCD-SSB and the ROs mapped to a portion of CD-SSB are interleaved in the first time slot, and the ROs mapped to another portion of NCD-SSB and the ROs mapped to another portion of CD-SSB are interleaved in the second time slot.

[0267] Optionally, if the ROs mapped to a portion of NCD-SSBs and the ROs mapped to a portion of CD-SSBs are interleaved in the first time slot, and the ROs mapped to another portion of NCD-SSBs and the ROs mapped to another portion of CD-SSBs are interleaved in the second time slot:

[0268] The portion of CD-SSB includes a first header CD-SSB, and the RO mapped to the first header CD-SSB is the earliest corresponding RO among the multiple ROs included in the first time slot.

[0269] The other part of the CD-SSB includes a second head CD-SSB, and the RO mapped to the second head CD-SSB is the earliest corresponding RO among the multiple ROs included in the second time slot.

[0270] Optionally, the pre-configuration information is generated by the network-side device based on pre-configured Radio Resource Control (RRC) parameters.

[0271] The random access device in this application embodiment can reduce the waste of RO resources and shorten the time for the terminal to access the cell by receiving the new NCD-SSB and RO mapping scheme from the network-side equipment.

[0272] The random access device in this application embodiment can be a device, a device with an operating system, or an electronic device, or it can be a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the type of terminal.

[0273] The random access device provided in this application embodiment can achieve... Figure 22The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0274] This application also provides a communication device. Please refer to [link to relevant documentation]. Figure 25 The communication device 2500 may include a processor 2501, a memory 2502, and a program stored in the memory 2502 and executable on the processor 2501.

[0275] This program can be implemented when executed by processor 2501. Figure 2 or Figure 22 To avoid repetition, any steps in the corresponding method embodiments and the achievement of the same beneficial effects will not be described again here.

[0276] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described random access method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0277] The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0278] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0279] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0280] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A random access method, applied to network-side equipment, characterized in that, The method includes: Send pre-configuration information to the terminal. The pre-configuration information includes configuration information of multiple non-cell definition-synchronization information blocks (NCD-SSB), configuration information of multiple random access opportunities (RO), and the mapping relationship between each NCD-SSB and RO. The terminal receives message 1 sent on the RO mapped to the NCD-SSB according to the pre-configuration information. Message 1 is used to complete the random access procedure.

2. The method according to claim 1, characterized in that, The pre-configuration information also includes configuration information for multiple cell definition-synchronization information blocks (CD-SSBs), as well as the mapping relationship between each CD-SSB and the RO. When the quasi-co-address parameters of the target CD-SSB are different from those of the target NCD-SSB: The time of the RO mapped to the target CD-SSB is earlier than the time of the RO mapped to the target NCD-SSB, or the time of the RO mapped to the target CD-SSB is later than the time of the RO mapped to the target NCD-SSB. Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

3. The method according to claim 1, characterized in that, The pre-configuration information also includes configuration information for multiple Cell Definition-Synchronization Information Blocks (CD-SSBs), and the mapping relationship between each CD-SSB and the RO. In cases where the multiple CD-SSBs and the multiple NCD-SSBs correspond to at least two associated periods, the associated period is one or more transmission periods of the Physical Random Access Channel (PRACH) of the associated synchronization information block SSB. The ROs mapped to the plurality of NCD-SSBs are located within a first association period, and the ROs mapped to the plurality of CD-SSBs are located within a second association period; or, The ROs mapped to a portion of NCD-SSBs are located within the first association period, while the ROs mapped to another portion of NCD-SSBs and the ROs mapped to the plurality of CD-SSBs are located within the second association period. or, The ROs mapped to the plurality of NCD-SSBs and the ROs mapped to a portion of CD-SSBs are located within the first association period, while the ROs mapped to another portion of CD-SSBs are located within the second association period.

4. The method according to claim 1, characterized in that, The pre-configuration information also includes configuration information for multiple cell definition-synchronization information blocks (CD-SSBs), as well as the mapping relationship between each CD-SSB and the RO. When the quasi-co-address parameters of the target CD-SSB are the same as those of the target NCD-SSB, the time of the RO mapped to the target NCD-SSB overlaps with the time of the RO mapped to the target CD-SSB. Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

5. The method according to claim 1, characterized in that, The pre-configuration information also includes configuration information for multiple cell definition-synchronization information blocks (CD-SSBs), as well as the mapping relationship between each CD-SSB and the RO. The time of RO mapped to the target NCD-SSB does not overlap with the time of RO mapped to the target CD-SSB; Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

6. The method according to claim 5, characterized in that, The ROs mapped to the target NCD-SSB and the ROs mapped to the target CD-SSB are alternately set in the same time slot.

7. The method according to claim 1, characterized in that, The pre-configuration information also includes configuration information for multiple Cell Definition-Synchronization Information Blocks (CD-SSBs), and the mapping relationship between each CD-SSB and the RO; in the case where the multiple CD-SSBs and the multiple NCD-SSBs correspond to reference time slots, and the reference time slots include adjacent first and second time slots: The ROs mapped to the plurality of NCD-SSBs are located in the first time slot, and the ROs mapped to the plurality of CD-SSBs are located in the second time slot; or, The ROs mapped to a portion of NCD-SSB and the ROs mapped to a portion of CD-SSB are interleaved in the first time slot, and the ROs mapped to another portion of NCD-SSB and the ROs mapped to another portion of CD-SSB are interleaved in the second time slot.

8. The method according to claim 7, characterized in that, In the case where ROs mapped to a portion of NCD-SSB and ROs mapped to a portion of CD-SSB are interleaved in the first time slot, and ROs mapped to another portion of NCD-SSB and ROs mapped to another portion of CD-SSB are interleaved in the second time slot: The portion of CD-SSB includes a first header CD-SSB, and the RO mapped to the first header CD-SSB is the earliest corresponding RO among the multiple ROs included in the first time slot. The other part of the CD-SSB includes a second head CD-SSB, and the RO mapped to the second head CD-SSB is the earliest corresponding RO among the multiple ROs included in the second time slot.

9. The method according to claim 1, characterized in that, Before sending the pre-configuration information to the terminal, the method further includes: Based on the pre-configured Radio Resource Control (RRC) parameters, multiple NCD-SSBs and multiple ROs are mapped to generate pre-configured information.

10. A random access method, applied to a terminal, characterized in that, include: The device receives pre-configuration information sent by the network side device. The pre-configuration information includes configuration information of multiple non-cell definition-synchronization information blocks (NCD-SSB), configuration information of multiple random access times (RO), and mapping relationship between each NCD-SSB and RO. According to the pre-configuration information, message 1 is sent to the network-side device on the RO mapped to NCD-SSB, so that the network-side device completes the random access procedure according to message 1.

11. The method according to claim 10, characterized in that, The pre-configuration information also includes configuration information for multiple cell definition-synchronization information blocks (CD-SSBs), as well as the mapping relationship between each CD-SSB and the RO. When the quasi-co-address parameters of the target CD-SSB are different from those of the target NCD-SSB: The time of the RO mapped to the target CD-SSB is earlier than the time of the RO mapped to the target NCD-SSB, or the time of the RO mapped to the target CD-SSB is later than the time of the RO mapped to the target NCD-SSB. Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

12. The method according to claim 10, characterized in that, The pre-configuration information also includes configuration information for multiple Cell Definition-Synchronization Information Blocks (CD-SSBs), and the mapping relationship between each CD-SSB and the RO. In cases where the multiple CD-SSBs and the multiple NCD-SSBs correspond to at least two associated periods, the associated period is one or more transmission periods of the Physical Random Access Channel (PRACH) of the associated synchronization information block SSB. The ROs mapped to the plurality of NCD-SSBs are located within a first association period, and the ROs mapped to the plurality of CD-SSBs are located within a second association period; or, The ROs mapped to a portion of NCD-SSBs are located within the first association period, while the ROs mapped to another portion of NCD-SSBs and the ROs mapped to the plurality of CD-SSBs are located within the second association period. or, The ROs mapped to the plurality of NCD-SSBs and the ROs mapped to a portion of CD-SSBs are located within the first association period, while the ROs mapped to another portion of CD-SSBs are located within the second association period.

13. The method according to claim 10, characterized in that, The pre-configuration information also includes configuration information for multiple cell definition-synchronization information blocks (CD-SSBs), as well as the mapping relationship between each CD-SSB and the RO; when the quasi-co-address parameters of the target CD-SSB are the same as those of the target NCD-SSB, the time of the RO mapped to the target NCD-SSB overlaps with the time of the RO mapped to the target CD-SSB. Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

14. The method according to claim 10, characterized in that, The pre-configuration information also includes configuration information for multiple cell definition-synchronization information blocks (CD-SSBs), as well as the mapping relationship between each CD-SSB and the RO; the time of the RO mapped to the target NCD-SSB and the time of the RO mapped to the target CD-SSB do not overlap. Wherein, the target CD-SSB is any one of the plurality of CD-SSBs, and the target NCD-SSB is any one of the plurality of NCD-SSBs.

15. The method according to claim 14, characterized in that, The ROs mapped to the target NCD-SSB and the ROs mapped to the target CD-SSB are alternately set in the same time slot.

16. The method according to claim 10, characterized in that, The pre-configuration information also includes configuration information for multiple Cell Definition-Synchronization Information Blocks (CD-SSBs), and the mapping relationship between each CD-SSB and the RO; in the case where the multiple CD-SSBs and the multiple NCD-SSBs correspond to reference time slots, and the reference time slots include adjacent first and second time slots: The ROs mapped to the plurality of NCD-SSBs are located in the first time slot, and the ROs mapped to the plurality of CD-SSBs are located in the second time slot; or, The ROs mapped to a portion of NCD-SSB and the ROs mapped to a portion of CD-SSB are interleaved in the first time slot, and the ROs mapped to another portion of NCD-SSB and the ROs mapped to another portion of CD-SSB are interleaved in the second time slot.

17. The method according to claim 16, characterized in that, In the case where ROs mapped to a portion of NCD-SSB and ROs mapped to a portion of CD-SSB are interleaved in the first time slot, and ROs mapped to another portion of NCD-SSB and ROs mapped to another portion of CD-SSB are interleaved in the second time slot: The portion of CD-SSB includes a first header CD-SSB, and the RO mapped to the first header CD-SSB is the earliest corresponding RO among the multiple ROs included in the first time slot. The other part of the CD-SSB includes a second head CD-SSB, and the RO mapped to the second head CD-SSB is the earliest corresponding RO among the multiple ROs included in the second time slot.

18. The method according to claim 10, characterized in that, The pre-configuration information is generated by the network-side device based on the pre-configured Radio Resource Control (RRC) parameters.

19. A random access device, applied to network-side equipment, characterized in that, include: The first network sending module is used to send pre-configuration information to the terminal. The pre-configuration information includes configuration information of multiple non-cell definition-synchronization information blocks (NCD-SSB), configuration information of multiple random access times (RO), and mapping relationship between each NCD-SSB and RO. The first network receiving module is used to receive message 1 sent by the terminal on the RO mapped to the NCD-SSB according to the pre-configuration information. Message 1 is used to complete the random access process.

20. A random access device, applied to a terminal, characterized in that, include: The first terminal receiving module is used to receive pre-configuration information sent by the network side device. The pre-configuration information includes configuration information of multiple non-cell definition-synchronization information blocks (NCD-SSB), configuration information of multiple random access opportunities (RO), and mapping relationship between each NCD-SSB and RO. The first terminal sending module is used to send message 1 to the network-side device on the RO mapped to NCD-SSB according to the pre-configuration information, so that the network-side device can complete the random access process according to message 1.

21. A communication device, comprising a processor, a memory, and a program or instructions stored in the memory and executable on the processor, characterized in that, When the program or instructions are executed by the processor, they implement the steps of the random access method as described in any one of claims 1-9, or implement the steps of the random access method as described in any one of claims 10-18.

22. A readable storage medium on which a program or instructions are stored, wherein, When the program or instructions are executed by the processor, they implement the steps of the random access method as described in any one of claims 1-9, or implement the steps of the random access method as described in any one of claims 10-18.

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