Random access method, device and equipment, terminal readable storage medium and computer program product

Abstract

The invention belongs to the technical field of communication, and particularly relates to a random access method, device and equipment, a terminal readable storage medium and a computer program product, and the method comprises the steps that a terminal receives first information from network side equipment; the terminal determines a target random access resource in at least one first target resource according to the first information; the terminal initiates random access according to the target random access resource; wherein the first information comprises configuration information related to random access of the first target resource.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a random access method, apparatus, device, terminal-readable storage medium, and computer program product. Background Technology

[0002] In existing random access methods, terminals typically use a single resource for random access; that is, the terminal uses whatever random access resource is configured for it by the network. It remains unclear how terminals select random access resources in scenarios with multiple random access resources. Summary of the Invention

[0003] This application provides a random access method, apparatus, device, terminal-readable storage medium, and computer program product, which can solve the problem of how a terminal selects random access resources in a multi-resource scenario.

[0004] Firstly, a random access method is provided, including:

[0005] The terminal receives the first information from the network-side device;

[0006] The terminal determines a target random access resource from at least one first target resource based on the first information;

[0007] The terminal initiates random access based on the target random access resource;

[0008] The first information includes configuration information related to random access to the first target resource.

[0009] Secondly, a random access method is provided, including:

[0010] The network-side device sends the first information to the terminal;

[0011] The first information includes configuration information related to random access to the first target resource.

[0012] Thirdly, a random access device is provided, comprising:

[0013] The first receiving module is used to receive first information from the network-side device;

[0014] A first processing module is used to determine a target random access resource from at least one first target resource based on the first information.

[0015] The second processing module is used to initiate random access based on the target random access resource;

[0016] The first information includes configuration information related to random access to the first target resource.

[0017] Fourthly, a random access device is provided, comprising:

[0018] The first sending module is used to send the first information to the terminal;

[0019] The first information includes configuration information related to random access to the first target resource.

[0020] Fifthly, a random access device is provided, the device being configured to perform the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0021] In a sixth aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0022] In a seventh aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used for the terminal to receive first information from a network-side device; the processor is used for the terminal to determine a target random access resource among at least one first target resource based on the first information; and the processor is used for the terminal to initiate random access based on the target random access resource.

[0023] Eighthly, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0024] In a ninth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used by the network-side device to send first information to a terminal; wherein the first information includes configuration information related to random access to the first target resource.

[0025] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0026] Eleventhly, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method as described in the first aspect, and the network-side device can be used to perform the steps of the method as described in the second aspect.

[0027] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0028] In a thirteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0029] In this embodiment, the terminal determines a target random access resource from at least one first target resource based on the random access configuration information of the first target resource provided by the network-side device, and initiates random access according to the target random access resource, thereby realizing how the terminal selects a random access resource in a multi-resource scenario. Attached Figure Description

[0030] Figure 1a This is a block diagram of a wireless communication system applicable to embodiments of this application;

[0031] Figure 1b This is a schematic diagram of existing Anchor cell / Non-anchor cell deployment scenarios;

[0032] Figure 2 This is one of the flowcharts illustrating the random access method provided in the embodiments of this application;

[0033] Figure 3 This is a second schematic flowchart of the random access method provided in the embodiments of this application;

[0034] Figure 4 This is the third flowchart illustrating the random access method provided in the embodiments of this application;

[0035] Figure 5 This is one of the structural schematic diagrams of the random access device provided in the embodiments of this application;

[0036] Figure 6 This is a second schematic diagram of the structure of the random access device provided in the embodiments of this application;

[0037] Figure 7 This is a schematic diagram of the structure of the communication device provided in the embodiments of this application;

[0038] Figure 8 This is a schematic diagram of the terminal structure provided in the embodiments of this application;

[0039] Figure 9 This is one of the structural schematic diagrams of the network-side device provided in the embodiments of this application;

[0040] Figure 10 This is the second schematic diagram of the network-side device provided in the embodiments of this application. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0042] The terms "first," "second," etc., used in 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, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0043] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0044] 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), or other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0045] Figure 1aThis 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 be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home devices (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game consoles, personal computers (PCs), ATMs, or self-service machines, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 may include access network equipment or core network equipment, wherein access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, or radio access network unit. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (AS), or Wireless Fidelity (WiFi) nodes, etc.The term "base station" can be referred to as Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The term "base station" is not limited to any specific technical terminology. It should be noted that this application embodiment only uses a base station in an NR system as an example for description and does not limit the specific type of base station.

[0046] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), and Binding Support Function. Support Functions (BSF), Application Functions (AF), Location Management Functions (LMF), Gateway Mobile Location Centres (GMLC), and Network Data Analytics Functions (NWDAF), etc. It should be noted that this application embodiment only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0047] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0048] To better understand the technical solution proposed in this application, the following content will be introduced first:

[0049] Anchor cell / Non-anchor cell

[0050] Network energy saving (NES) is a technology that has garnered significant attention. Potential NES technologies can be broadly categorized into time-domain energy saving, frequency-domain energy saving, and spatial-domain energy saving. Among these, the anchored cell concept, as a time-domain energy saving technology, has been researched and discussed by various companies. Through network configuration information, a terminal can identify one anchored cell and at least one non-anchored cell near its location. Regarding network energy saving scenarios, the following conclusions can be drawn:

[0051] 1. Non-anchored cells that do not send System Information Blocks (SIBs) are only applicable to multi-carrier scenarios;

[0052] 2. The UE is located within the coverage area of ​​one anchored cell and one or more non-anchored cells;

[0053] 3. A non-anchored cell that does not send SIBs refers to a cell in which a UE cannot receive SIBs; a non-anchored cell that does not send Synchronization Signal Blocks (SSBs) and SIBs refers to a cell in which a UE cannot receive either SIBs or SSBs.

[0054] 4. The UE may access the network solely through the anchored cell, or it may also be able to access it directly through a non-anchored cell. If direct access to a non-anchored cell is supported, the SIB of the anchored cell may also carry the information required for accessing the non-anchored cell;

[0055] 5. The timing, synchronization, and quasi-co-located (QCL) relationships of non-anchored cells that do not transmit SSB and SIB need to be determined through another cell;

[0056] 6. The UE is camped in the anchored cell; the UE is not camped in a non-anchored cell that does not send SIBs, or a non-anchored cell that does not send SSBs and SIBs.

[0057] 7. Paging functionality is not supported on non-anchored cells that do not transmit SIBs or SSBs and SIBs.

[0058] Specific deployment scenarios are as follows: Figure 1b As shown, there are two possible deployment scenarios for 6G:

[0059] Deployment Scenario 1: Anchor cells and non-anchor cells do not co-locate;

[0060] Deployment Scenario 2: Anchor cell / non-anchor cell co-location;

[0061] Narrow Band Internet of Things (NB-IoT) is built on cellular networks and consumes only about 180kHz of bandwidth. It can be directly deployed on Global System for Mobile Communications (GSM), Universal Mobile Telecommunications System (UMTS), or LTE networks to reduce deployment costs and enable smooth upgrades.

[0062] Because NB-IoT single-frequency cells only have a bandwidth of 180kHz, the remaining service channel capacity is very small after deducting the overhead of the NB-IoT Primary Synchronization Signal (NPSS), the NB-IoT Secondary Synchronization Signal (NSSS), and the SIB. To support a massive number of terminals, multiple frequency points are needed to increase network capacity; therefore, the concept of anchor carrier / non-anchor carrier is introduced.

[0063] In addition to anchored carriers containing NPSS, NSSS, and NPBCH, a cell may also contain at least one non-anchored carrier that does not contain NPSS, NSSS, and the NB-IoT Physical Broadcast Channel (NPBCH).

[0064] Non-anchored carriers can offload the load of anchored carriers, including SIB1 loads (only Time Division Duplexing (TDD) carriers can be offloaded), paging loads, and RACH loads.

[0065] When a UE is initially camped on a cell, signal quality measurements must be performed on the anchored carrier. Once the measurement relaxation conditions are met, the UE can switch to a non-anchored carrier for measurement.

[0066] When anchored and non-anchored carriers are deployed together, their coverage areas are nearly identical, both within the same 20MHz frequency band. The base station can configure Physical Random Access Channel (PRACH) resources for the UE on the anchored carrier and n non-anchored carriers, and assign an access probability 'a' to the anchored carrier. For the n non-anchored carriers configured, the access probability is (1-a) / n.

[0067] In existing anchor cell energy-saving technologies, there is no detailed standard discussion on how terminals determine the cell for random access.

[0068] In existing NB-IoT technology, anchor carriers and non-anchor carriers reside in the same 20MHz bandwidth frequency band, and are often co-located. Because the coverage of anchor and non-anchor carriers is similar, probabilistic RACH carrier selection can be performed. However, in future cross-band single-cell multi-carrier / multi-band scenarios, due to significant differences in coverage among RACH cells, probabilistic RACH carrier selection in NB-IoT cannot be directly used.

[0069] In some cases, such as NB-IoT, the network can configure multiple carriers for random access to the terminal, which then selects one. However, in NB-IoT scenarios, the uplink coverage of all available carriers for random access is approximately the same, and it's rare for one random access carrier to be available while another is unavailable. However, in scenarios with multiple frequency bands for random access resources, the uplink coverage of each band varies significantly, as do the types of terminal services and scenarios served by each band. Currently, it remains unclear how a terminal selects a random access resource in multi-frequency band, multi-random access resource scenarios.

[0070] Therefore, this application needs to address the complexity caused by the different frequency bands, coverage areas, and non-co-site deployments of multiple cells / carriers / BWPs in anchor cell / non-anchor cell scenarios, or scenarios where a single cell contains multiple cross-frequency band carriers / bandwidth parts (BWPs), and how a terminal can select the cell / carrier / BWP for random access.

[0071] The random access method provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0072] See Figure 2 This application provides a random access method, the main body of which is a terminal, and the method includes:

[0073] Step 201: The terminal receives the first information from the network-side device;

[0074] Step 202: The terminal determines the target random access resource from at least one first target resource based on the first information;

[0075] Step 203: The terminal initiates random access based on the target random access resources;

[0076] The first information includes configuration information related to random access to the first target resource.

[0077] It should be noted that there are multiple ways for a terminal to receive the first information from a network-side device. For example, the network-side device can configure the terminal in a semi-static way, or the network-side device can dynamically instruct the terminal in a dynamic way. Therefore, the first information can also be called the first configuration information or the first instruction information. This application embodiment does not limit the way the terminal receives the first information from the network-side device.

[0078] The aforementioned resources can be cells, carriers, BWPs, or frequency-domain related resources (frequency elements, cell combinations, carrier combinations, frequency band combinations), etc. The RACH resource refers to the random access configuration information configured for that resource by the network.

[0079] For example, if the network configures random access resources for the first target resource, such as PRACH occasions, it can be understood that the network instructs the terminal to use the first target resource for random access. For example, the network can dynamically activate the terminal to use the first target resource for random access via DCI. For example, the network can instruct the terminal to preferentially use the first target resource for random access via a protocol. For example, the network can use SIB / DCI to carry 1 bit information to instruct the terminal whether to use the first target resource or a resource other than the first target resource for random access. For example, the network can activate at least one first target resource for random access via a bitmap, and the terminal can select one of the at least one first target resource for random access.

[0080] The main idea of ​​this embodiment is that the terminal determines the target random access resource in at least one first target resource based on the first information. Specifically, the terminal can perform RACH carrier / cell / BWP selection based on the measurement of the first target resource or the measurement of the associated resources of the first target resource.

[0081] For example:

[0082] The first target resource is a TDD resource. The network configures reference signals for measurement on the TDD resource, such as the primary synchronization signal (PSS) / secondary synchronization signal (SSS), SSB, channel state information-reference signal (CSI-RS), tracking reference signal (TRS), and other reference signals for measurement.

[0083] The first target resource is a TDD resource. The network configures a reference signal for measurement on the associated resource of the TDD resource. The associated resource and the TDD resource may be related as intra-band (same band), inter-band, QuasiCo-located (e.g., co-site / co-address), the band with the closest frequency domain distance, the band using the same RF, the band in the same band combination / band group, etc.

[0084] The first target resource is a Frequency Division Duplex (FDD) uplink resource, and the network configures a reference signal for measurement on the downlink resource associated with the FDD uplink resource;

[0085] The first target resource is a Supplementary Uplink (SUL) or UL-only resource, and the network configures a reference signal for measurement on the reference downlink resource of the SUL resource;

[0086] The reference downlink resource for the SUL or UL only resource is a downlink resource associated with a normal uplink (NUL), or a downlink resource associated with a configured resource (NUL, SUL, UL only resource), or a downlink resource associated with a resource that meets a first condition, wherein the first condition is at least one of the following:

[0087] Resources that have an intra-band (same band) relationship with the first target resource and an inter-band relationship.

[0088] Resources co-located with the first target resource Quasi

[0089] The resource with the closest frequency domain distance to the first target resource

[0090] Resources using the same RF as the first target resource

[0091] Resources that can use the same RF within the same band combination or group as the first target resource definition

[0092] In this embodiment, the terminal determines a target random access resource from at least one first target resource based on the random access configuration information of the first target resource provided by the network-side device, and initiates random access according to the target random access resource, thereby realizing how the terminal selects a random access resource in a multi-resource scenario.

[0093] In one possible implementation, the first information includes at least one of the following:

[0094] (1) Random access configuration information of the first target resource;

[0095] The random access configuration information includes random access resources such as PRACH occasions, random access power control parameters, random access failure decision parameters, first target resource selection probability, and other parameters used by the terminal to perform the random access process on the first target resource.

[0096] (2) Measurement and configuration information of the first target resource;

[0097] (3) Measurement and configuration information of the associated resources of the first target resource;

[0098] (4) On-demand reference signal configuration information for the first target resource;

[0099] The terminal can send an on-demand reference signal request to the network-side device. The network-side device can respond to the on-demand reference signal request by sending an on-demand reference signal to the terminal.

[0100] (5) On-demand reference signal configuration information of the associated resources of the first target resource;

[0101] (6) Measurement thresholds related to the selection of random access resources; specifically, these may include measurement thresholds related to the measurement results of the first target resource, measurement thresholds related to the measurement results of the associated resources of the first target resource, and measurement thresholds related to the difference between the measurement results of the first target resource and other resources.

[0102] The term "measuring threshold" can also be referred to as "threshold" or "threshold value".

[0103] Optionally, the measurement threshold may include at least one of the following features:

[0104] The measurement threshold is either the Reference Signal Receiving Power (RSRP) threshold, or the Reference Signal Received Quality (RSRQ) threshold, or the Cross Link Interference (CLI) threshold, or the Received Signal Strength Indication (RSSI) threshold.

[0105] For example, when the measurement threshold is the RSRP threshold, it is used to compare with the RSRP measurement result obtained by the terminal; when the measurement threshold is the RSRQ threshold, it is used to compare with the RSRQ measurement result obtained by the terminal; and so on.

[0106] The measurement threshold is configured for each resource granularity;

[0107] For example, the resource granularity includes band combination / band / cell / carrier / BWP / beam, etc.

[0108] The measurement threshold is configured for each resource / resource list / resource group;

[0109] For example, the resources / resource lists / resource groups include band / band group / carrier / carrierlist / carrier group / cell / cell group / BWP / BWP group / beam, etc.

[0110] (7) Packet Delay Budget (PDB) measurement threshold;

[0111] (8) First information, used to indicate whether the first target resource supports emergency services;

[0112] For example, the network has configured RACH resources for four carriers, but only indicates that carrier 1 supports emergency services. These emergency services include emergency call services.

[0113] (9) Priority of the first target resource;

[0114] When instructing the terminal to select random access resources, the selection priority of the first target resource among all resources is given.

[0115] For example, if a network is configured with four carriers that can all be used for random access, the network can indicate the priorities of carriers 1 through 4 as 1, 2, 3, and 4, with carrier 1 having the highest selection priority. The terminal then selects a random access carrier based on the priorities indicated by the network.

[0116] In one implementation, the terminal can first determine candidate random access carriers based on other conditions, and then select a random access carrier using the priority indicated by the network. For example, if the network configures four carriers that can be used for random access, the network can assign priorities of carriers 1 to 4 as 1, 2, 3, and 4, with the carrier with priority 1 having the highest selection priority. The network also instructs the terminal that the RSRP measurement result of the selected random access carrier must be greater than or equal to an RSRP threshold. The terminal then determines the RSRP condition based on the RSRP measurement result; for example, carriers 1 and 3 satisfy the RSRP condition. Subsequently, the terminal selects a random access carrier based on the priorities of carriers 1 and 3.

[0117] (10) The probability of selecting the first target resource;

[0118] For example, the network may be configured with four carriers, all of which can be used for random access. The network can indicate the selection probability of each carrier. The terminal selects a random access carrier based on the probabilities.

[0119] For example, the network indicates that all four carriers can be used for random access, and the selection probability of each carrier is 25%. When a terminal initiates random access, it randomly selects a cell from cell 1 to cell 4 for random access according to the aforementioned probabilities.

[0120] In one implementation, the terminal can first determine candidate random access carriers based on other conditions, and then select a random access carrier using the priority indicated by the network. For example, the network indicates that all four carriers can be used for random access, with each carrier having a selection probability of 25%. The network can also indicate the selection probabilities of other carrier combinations. For example, when the terminal selects from carrier 1 and carrier 2, the probabilities are {75%, 25%}, respectively; when the terminal selects from carrier 1 and carrier 3, the probabilities are {50%, 50%}, respectively; and so on. The network also indicates that the RSRP measurement result of the random access carrier selected by the terminal must be greater than or equal to an RSRP threshold value. The terminal then determines, for example, that carrier 1 and carrier 3 meet the RSRP condition based on the RSRP measurement result. Subsequently, the terminal randomly selects a random access carrier based on the carrier selection probabilities of carrier 1 and carrier 3, which are {50%, 50%}.

[0121] (11) Terminal type associated with the first target resource. Terminal types may include Reduced Capability (RedCap), Internet of Things (IoT), Non-Terrestrial Network (NTN), Unmanned Aerial Vehicle (UAV), Very Small Aperture Terminal (VSAT), etc.

[0122] In one possible implementation, the method further includes:

[0123] The terminal receives the second information from the network-side device;

[0124] The second piece of information is used to indicate at least one of the following:

[0125] (1) Use the first target resource to perform random access; that is, the network instructs the terminal to use the first target resource to perform random access through the second information.

[0126] (2) Priority thresholds related to the selection of random access resources. Used to select a target random access resource based on the priority of the first target resource.

[0127] In one possible implementation, the method further includes:

[0128] When the terminal receives the second information from the network-side device, the terminal determines the target random access resource based on the second information;

[0129] The second piece of information is used to directly instruct the target to access random resources;

[0130] The terminal determines a target random access resource from at least one first target resource based on the first information, including:

[0131] If the terminal does not receive the second information from the network-side device, the terminal determines the target random access resource from at least one first target resource based on the first information.

[0132] In one possible implementation, the terminal determines a target random access resource among at least one first target resource based on first information, including:

[0133] Based on the first information, the terminal determines a target candidate random access resource from at least one first target resource, and determines a target random access resource from the target candidate random access resources.

[0134] In one possible implementation, the terminal determines a target candidate random access resource from at least one first target resource based on first information, and determines a target random access resource from the target candidate random access resources, including:

[0135] (1) Based on the first information, the terminal determines that, under the condition of satisfying the first condition, one or more of the first target resources will be identified as target candidate random access resources;

[0136] (2) The terminal selects a target random access resource from the target candidate random access resources according to the first information and the first rule;

[0137] The first condition includes at least one of the following:

[0138] (1) The first information contains random access configuration information for the first target resource;

[0139] (2) The terminal's measurement result of the first target resource is greater than or equal to the first measurement threshold;

[0140] The first measurement threshold is used to indicate that when the measurement result of the terminal on the carrier / cell / BWP configured with random access resources is greater than or equal to the first measurement threshold after comparison with the measurement threshold, the terminal can initiate random access on the carrier / cell / BWP configured with random access resources.

[0141] This ensures that the terminal only performs random access to carriers / cells / BWPs with good signal strength / quality.

[0142] (3) The measurement result of the terminal on the associated resources of the first target resource is greater than or equal to the second measurement threshold;

[0143] (4) When the terminal initiates random access, there are measurement results for the first target resource;

[0144] (5) When the terminal initiates random access, there are measurement results of the associated resources of the first target resource;

[0145] (6) The priority of the first target resource indicated by the first information is higher than or equal to the first priority threshold indicated by the second information;

[0146] (7) The priority of the first target resource indicated by the first information is lower than or equal to the second priority threshold indicated by the second information;

[0147] (8) The target service for which the terminal initiates random access is an emergency service, and the first information indicates that the first target resource supports the emergency service;

[0148] (9) The PDB of the target service initiated by the terminal for random access is less than or equal to the PDB measurement threshold indicated by the first information.

[0149] (10) The terminal type of the terminal is included in the terminal type associated with the first target resource indicated by the first information;

[0150] The first rule includes at least one of the following:

[0151] (1) The terminal determines the target random access resource according to the priority of the target candidate random access resource indicated by the first information;

[0152] (2) The terminal determines the target random access resource based on the selection probability of the target candidate random access resource indicated by the first information;

[0153] (3) The terminal randomly selects a random access resource from at least one target candidate random access resource and determines it as the target random access resource.

[0154] It should be noted that the first condition and the first rule mentioned above can be used in combination.

[0155] In one possible implementation, at least one first target resource includes a second target resource;

[0156] The second target resource is either the resource corresponding to the anchored cell or the anchored frequency domain resource, or the first resource or the first non-anchored frequency domain resource corresponding to the non-anchored cell. It can be understood that in actual deployment scenarios, there may be one anchored cell and multiple non-anchored cells. The second target resource is either the resource corresponding to the anchored cell or the anchored frequency domain resource, or the second target resource may be the resource corresponding to a non-anchored cell or the non-anchored frequency domain resource.

[0157] As one possible implementation, the first target resource involved in the first condition and / or first rule mentioned above includes the second target resource.

[0158] As another possible implementation, the terminal determines a target random access resource from at least one first target resource based on the first information, including:

[0159] Based on the first information, the terminal determines, under the condition of satisfying the second condition, to identify at least one or more of the first target resources as the target candidate random access resources;

[0160] The terminal determines the target random access resource from the target candidate random access resources;

[0161] The second condition includes at least one of the following:

[0162] The difference between the measurement result of the third target resource and the measurement result of the second target resource is less than or equal to the third measurement threshold;

[0163] The difference between the measurement result of the associated resource of the third target resource and the measurement result of the second target resource is less than or equal to the fourth measurement threshold;

[0164] The difference between the measurement result of the third target resource and the measurement result of the associated resource of the second target resource is less than or equal to the fifth measurement threshold;

[0165] The difference between the measurement results of the associated resources of the third target resource and the measurement results of the associated resources of the second target resource is less than or equal to the sixth measurement threshold;

[0166] The terminal's measurement result of the second target resource is less than or equal to the seventh measurement threshold;

[0167] The third target resource is at least one second resource or a second non-anchored frequency domain resource corresponding to a non-anchored cell in the first target resource.

[0168] The second to seventh measurement thresholds mentioned above are used to compare the relevant measurement differences between different first target resources (or their associated resources), and then used by the terminal to determine the target resource for random access. For the associated resources, an example is given below: A base station carries carrier 1 and carrier 2. If carrier 2 does not send a reference signal, and it completes synchronization using the reference signal sent by carrier 1, then carrier 1 is the reference carrier of carrier 2.

[0169] This allows the terminal to randomly access the first target resource with better signal strength and quality.

[0170] In one possible implementation, the terminal determines a target random access resource among at least one first target resource based on the first information, including:

[0171] The terminal determines one or more of the first target resources as the target candidate random access resources based on the first information.

[0172] The terminal selects the target random access resource from the target candidate random access resources according to the first information and the second rule.

[0173] The second rule includes at least one of the following:

[0174] If the target service for which the terminal initiates random access is an emergency service, the terminal determines the second target resource as the target random access resource.

[0175] If the PDB of the target service for which the terminal initiates random access is less than or equal to the PDB measurement threshold indicated by the first information, the terminal determines the second target resource as the target random access resource.

[0176] When the terminal initiates random access, if there is only a measurement result for the second target resource, the terminal determines the second target resource as the target random access resource.

[0177] The second target resource is the resource corresponding to the anchored cell or the anchored frequency domain resource.

[0178] It should be noted that the second condition and the second rule mentioned above can be used in combination.

[0179] In one possible implementation, the method further includes:

[0180] When a terminal initiates random access, if there is no measurement result for the first target resource, the terminal requests the on-demand reference signal of the first target resource based on the on-demand reference signal configuration information of the first target resource, or requests the on-demand reference signal of the associated resource of the first target resource based on the on-demand reference signal configuration information of the associated resource of the first target resource.

[0181] In one possible implementation, when a target candidate random access resource is determined among at least one first target resource, the method further includes at least one of the following:

[0182] The terminal determines the target associated resource based on the measurement result of performing a measurement on the associated resource of at least one first target resource; wherein the measurement result of the terminal on the associated resource of the first target resource is greater than or equal to an eighth measurement threshold;

[0183] The terminal determines at least one first target resource associated with the target associated resource as a target candidate random access resource;

[0184] Optionally, the eighth measurement threshold is configured for all associated resources of the first target resource, or for each associated resource of the first target resource.

[0185] See Figure 3 This application provides a random access method, the execution subject of which is a network-side device, and the method includes:

[0186] Step 301: The network-side device sends the first information to the terminal;

[0187] The first information includes configuration information related to random access to the first target resource.

[0188] It should be noted that, as the counterpart device interacting with the terminal, the execution steps and interactive information content involved in the method of the network-side device should be understood in the same way as those of the terminal side. Therefore, the understanding of the various technical features in the network-side method can refer to the relevant content on the terminal side, and the embodiments of this application will not repeat them here.

[0189] In one possible implementation, the first information includes at least one of the following:

[0190] Random access configuration information for the first target resource;

[0191] Measurement and configuration information of the primary target resource;

[0192] Measurement and configuration information of the associated resources of the first target resource;

[0193] On-demand reference signal configuration information for the first target resource;

[0194] On-demand reference signal configuration information for the associated resources of the first target resource;

[0195] Measurement thresholds related to the selection of random access resources;

[0196] PDB measurement threshold;

[0197] The first piece of information is used to indicate whether the first target resource supports emergency operations;

[0198] The primary priority of the target resource;

[0199] The probability of selecting the first target resource;

[0200] The terminal type associated with the first target resource.

[0201] In one possible implementation, the method further includes:

[0202] The network-side device sends a second message to the terminal;

[0203] The second piece of information is used to indicate at least one of the following:

[0204] Perform random access using the first target resource;

[0205] Priority thresholds related to the selection of random access resources.

[0206] In one possible implementation, when the network-side device sends second information to the terminal, the second information is used to directly indicate the target random access resource.

[0207] The technical solution of this application is described below with reference to specific application embodiments:

[0208] Example 1: Measurement-based RACH resource selection (without distinguishing between anchored and non-anchored resources), the specific process is as follows: Figure 4 As shown, it should be noted that the first configuration information and the first indication information in steps 1 and 2 of the figure refer to the first information or the second information mentioned above. They can be understood as different names used for different ways of obtaining the first information.

[0209] Step 1

[0210] The terminal receives first configuration information from a network-side device, the first configuration information including at least one of the following:

[0211] a1: Random access configuration information for at least one primary target resource;

[0212] The random access configuration information includes random access resources such as PRACH occasions, random access power control parameters, random access failure decision parameters, first target resource selection probability, and other parameters used by the terminal to perform the random access process on the first target resource.

[0213] a2: Measurement configuration information for at least one primary target resource;

[0214] a3: Measurement configuration information of at least one associated resource of the first target resource;

[0215] a4: On-demand reference signal configuration information for at least one primary target resource;

[0216] The terminal can send an on-demand reference signal request to the network-side device. The network-side device can respond to the on-demand reference signal request by sending an on-demand reference signal to the terminal.

[0217] a5: On-demand reference signal configuration information for at least one associated resource of the first target resource;

[0218] b1: Random access configuration information for the second target resource

[0219] b2: Measurement and configuration information for the second target resource;

[0220] For example, the second target resource is a campable cell. For example, the network sends an SSB or SIB on the second target resource. For example, the network configures random access configuration information for the second target resource. For example, the second target resource is at least one of the base cell, primary cell, or anchor cell of the first target resource.

[0221] c1: First measurement threshold;

[0222] The first measurement threshold is used to indicate that when the terminal's measurement results for the carrier / cell / BWP configured with random access resources meet the conditions described in each embodiment of step 3 after comparison with the measurement threshold, it can initiate random access on the carrier / cell / BWP configured with random access resources.

[0223] Beneficial effect: The advantage of the network including this instruction in the first instruction information is that it enables the terminal to randomly access only the carrier / cell / BWP with better signal strength / signal quality.

[0224] c2: Second measurement threshold;

[0225] c3: Third measurement threshold;

[0226] c4: Fourth measurement threshold;

[0227] The second / third / fourth measurement thresholds are used to compare the relevant measurement differences between different first target resources (or their associated resources), and then used by the terminal to determine the target resource for random access. As described in step 3.

[0228] For the aforementioned associated resources, an example is as follows: A base station is equipped with carrier 1 and carrier 2. If carrier 2 does not send a reference signal, it completes synchronization using the reference signal sent by carrier 1. In this case, carrier 1 is the reference carrier of carrier 2.

[0229] Beneficial effect: The advantage of including b3-b5 in the first configuration information of the network is that it enables the terminal to randomly access the first target resource with better signal strength / signal quality.

[0230] c5 Fifth Measurement Threshold;

[0231] The term "measuring threshold" can also be referred to as "threshold" or "threshold value".

[0232] Optionally, the first / second / third / fourth / fifth measurement thresholds may include at least one of the following features:

[0233] The measurement threshold is the RSRP threshold, or the RSRQ threshold, or the CLI threshold, or the RSSI threshold;

[0234] For example, when the measurement threshold is the RSRP threshold, it is used to compare with the RSRP measurement result obtained by the terminal; when the measurement threshold is the RSRQ threshold, it is used to compare with the RSRQ measurement result obtained by the terminal; and so on.

[0235] The measurement threshold is configured for each resource granularity;

[0236] For example, the resource granularity includes band combination / band / cell / carrier / BWP / beam, etc.

[0237] The measurement threshold is configured for each resource / resource list / resource group;

[0238] For example, the resources / resource lists / resource groups include band / band group / carrier / carrierlist / carrier group / cell / cell group / BWP / BWP group / beam, etc.

[0239] d: First package delay budget measurement threshold;

[0240] e: Does the primary target resource support emergency operations?

[0241] For example, the network has configured RACH resources for four carriers, but only indicates that carrier 1 supports emergency services. These emergency services include emergency call services.

[0242] f: Priority of the first target resource;

[0243] When instructing the terminal to select random access resources, the selection priority of the first target resource among all resources is given.

[0244] For example, if a network is configured with four carriers that can all be used for random access, the network can indicate the priorities of carriers 1 through 4 as 1, 2, 3, and 4, with carrier 1 having the highest selection priority. The terminal then selects a random access carrier based on the priorities indicated by the network.

[0245] In one implementation, the terminal can first determine candidate random access carriers based on other conditions, and then select a random access carrier using the priority indicated by the network. For example, if the network configures four carriers that can be used for random access, the network can assign priorities of carriers 1 to 4 as 1, 2, 3, and 4, with the carrier with priority 1 having the highest selection priority. The network also instructs the terminal that the RSRP measurement result of the selected random access carrier must be greater than or equal to an RSRP threshold. The terminal then determines the RSRP condition based on the RSRP measurement result; for example, carriers 1 and 3 satisfy the RSRP condition. Subsequently, the terminal selects a random access carrier based on the priorities of carriers 1 and 3.

[0246] g: Probability of selecting the first target resource;

[0247] For example, the network may be configured with four carriers, all of which can be used for random access. The network can indicate the selection probability of each carrier. The terminal selects a random access carrier based on the probabilities.

[0248] For example, the network indicates that all four carriers can be used for random access, and the selection probability of each carrier is 25%. When a terminal initiates random access, it randomly selects a cell from cell 1 to cell 4 for random access according to the aforementioned probabilities.

[0249] In one implementation, the terminal can first determine candidate random access carriers based on other conditions, and then select a random access carrier using the priority indicated by the network. For example, the network indicates that all four carriers can be used for random access, with each carrier having a selection probability of 25%. The network can also indicate the selection probabilities of other carrier combinations. For example, when the terminal selects from carrier 1 and carrier 2, the probabilities are {75%, 25%}, respectively; when the terminal selects from carrier 1 and carrier 3, the probabilities are {50%, 50%}, respectively; and so on. The network also indicates that the RSRP measurement result of the random access carrier selected by the terminal must be greater than or equal to an RSRP threshold value. The terminal then determines, for example, that carrier 1 and carrier 3 meet the RSRP condition based on the RSRP measurement result. Subsequently, the terminal randomly selects a random access carrier based on the carrier selection probabilities of carrier 1 and carrier 3, which are {50%, 50%}.

[0250] h: The terminal type associated with the carrier / cell / BWP. The terminal type may include RedCap, IoT, NTN, UAV, VSAT, and other terminal types.

[0251] Step 2

[0252] The terminal receives first indication information from the network-side equipment. The first indication information can be carried through SIB / RRC dedicated signalling / MAC CE / DCI (egpaging, UE dedicated signalling, group common signalling).

[0253] The first indication information may be the first configuration information. For example, as described in a below, when the network is configured with random access configuration information on the first target resource, it can be understood as instructing the terminal to perform random access using the first target resource.

[0254] The first indication information can also be indication information independent of the first configuration information. For example, as described in a below, when the network uses SIB to configure random access configuration information on the first target resource, it can also indicate in the random access configuration information that the random access resource on the first target resource is in a deactivated state. Subsequently, the network can use DCI to dynamically activate or deactivate the random access resource on the first target resource.

[0255] The first indication information includes at least one of the following:

[0256] a: Instruct the terminal to perform random access using the first target resource.

[0257] The term "instruction" can also be understood as "allow", "activate", or "enable".

[0258] The term "use" can also be understood as "use only", "use preferentially", or "can be used".

[0259] For example, if the network configures random access resources for the first target resource, such as PRACH occasions, it can be understood that the network instructs the terminal to use the first target resource for random access. For example, the network can dynamically activate the terminal to use the first target resource for random access via DCI. For example, the network can instruct the terminal to preferentially use the first target resource for random access via a protocol. For example, the network can use SIB / DCI to carry 1 bit information to instruct the terminal whether to use the first target resource or a resource other than the first target resource for random access. For example, the network can activate at least one first target resource for random access via a bitmap, and the terminal can select one of the at least one first target resource for random access.

[0260] Optionally, the first target resource is related to UE capabilities or UE characteristics.

[0261] For example, the first target resource is a RACH carrier list. One carrier in the RACH carrier list requires the UE to support a bandwidth of 40MHz or greater. If the terminal only supports a bandwidth of 20MHz, the UE cannot use that carrier for random access, even if that carrier is included in the RACH carrier list. The UE can only use other carriers in the RACH carrier list whose bandwidth meets the UE's capabilities for random access.

[0262] For example, if a carrier in the RACH BWP list requires RedCap UEs to use it, then non-RedCap UEs cannot use that BWP for random access, even if the BWP is included in the RACH BWP list.

[0263] Optionally, the first target resource is represented in bitmap form.

[0264] For example, each bit in the bitmap corresponds to a carrier / cell / BWP. When a bit is set to 1, it means that the carrier / cell / BWP corresponding to that bit is available for RACH; otherwise, the carrier / cell / BWP corresponding to that bit is excluded from RACH. For example, when the NW sends a paging message to the UE, the paging message indicates the RACH carrier / cell / BWP list. That is, the NW uses DCI to dynamically indicate to the UE which carrier / cell / BWPs are available for random access.

[0265] Beneficial effect: The advantage of the network including this instruction in the first instruction information is that the network can dynamically control the resources used by IDLE UE for random access over a period of time.

[0266] b1: First priority threshold;

[0267] b2: Second priority threshold;

[0268] Step 3a

[0269] It should be noted that step 3a is an optional step, and the agreement may stipulate that step 3b will be executed directly.

[0270] A typical example is deploying only one base station, which carries only one DL carrier and N UL carriers. In this case, the terminal does not need to go through step 3a to filter candidate RACH resources first, and then go to step 3b to select the final target random access resource.

[0271] Scenarios requiring a combination of 3a / 3b include: (1) Two base stations are deployed, one as the primary / anchored base station and the other as the secondary / non-anchored base station. Each base station transmits its own downlink reference signal, so as described in steps e1-e4 of 3a, it is necessary to first determine whether the primary and secondary base stations can provide similar services; (2) One base station is deployed, with M DL carriers and N UL carriers mounted. Each DL carrier is associated with one or more UL carriers.

[0272] Step 3a is as follows:

[0273] Based on the first configuration information or first indication information sent by the network-side device, if the first target resource meets at least one of the following conditions, the terminal determines at least one first target resource as a candidate random access resource:

[0274] a1: The first configuration information includes the random access configuration information of the first target resource;

[0275] a2: The first instruction information instructs the terminal to perform random access using the first target resource;

[0276] b1: The terminal's measurement result of the first target resource is greater than or equal to the first measurement threshold;

[0277] b2: The measurement result of the terminal on the associated resources of the first target resource is greater than or equal to the second measurement threshold;

[0278] c1: When a terminal initiates random access, there are measurement results for the first target resource;

[0279] c2: When a terminal initiates random access, there are measurement results of the associated resources of the first target resource;

[0280] d1: The priority of the first target resource indicated by the first configuration information is higher than or equal to the first priority threshold indicated by the first indication information;

[0281] d2: The priority of the first target resource indicated by the first configuration information is lower than or equal to the first priority threshold indicated by the first indication information;

[0282] e1: The difference between the measurement results of the first target resource and the measurement results of the second target resource is less than or equal to the third measurement threshold;

[0283] e2: The difference between the measurement result of the associated resource of the first target resource and the measurement result of the second target resource is less than or equal to the fourth measurement threshold;

[0284] e3: The difference between the measurement result of the first target resource and the measurement result of the associated resource of the second target resource is less than or equal to the fifth measurement threshold;

[0285] e4: The difference between the measurement results of the associated resources of the first target resource and the measurement results of the associated resources of the second target resource is less than or equal to the sixth measurement threshold;

[0286] e5: The terminal's measurement result of the second target resource is less than or equal to the seventh measurement threshold;

[0287] f: If the target service for which the terminal initiates random access is an emergency service, and the first configuration information indicates that the first target resource supports the emergency service;

[0288] g: If the PDB of the target service initiated by the terminal for random access is less than or equal to the first packet delay budget measurement threshold of the first target resource indicated by the first configuration information;

[0289] Step 3b

[0290] The terminal determines the target random access resource from at least one candidate random access resource determined in step 3b, based on the first configuration information or the first indication information. This includes at least one of the following:

[0291] a: The terminal determines the target random access resource based on the priority of the candidate random access resources indicated by the first configuration information;

[0292] b: The terminal determines the target random access resource based on the selection probability of the candidate random access resource indicated by the first configuration information;

[0293] c: The terminal randomly selects one candidate random access resource from at least one candidate random access resource and determines it as the target random access resource;

[0294] Step 4

[0295] The terminal initiates a random access procedure based on the target random access resource determined in steps 3a / 3b.

[0296] Example 2: Measurement-based RACH carrier / cell / BWP selection (distinguishing between anchored and non-anchored resources)

[0297] The main idea of ​​this embodiment is that the terminal performs RACH carrier / cell / BWP selection based on the reference signal measurement on the RACH carrier / cell / BWP, or the reference signal measurement of the carrier / cell / BWP associated with the RACH carrier / cell / BWP.

[0298] The terms “non-anchor cell” or “non-anchor carrier” used in this application can be understood as terms used in different scenarios, but in this application, these terms are mainly used to describe non-anchor resources corresponding to “anchor cell” or “anchor carrier”. Within the scope of these non-anchor resources, the terminal can perform random access on the non-anchor resources.

[0299] To simplify the description of this application, the embodiments do not use specific examples of "anchor cell / non-anchor cell" or "anchor carrier / non-anchor carrier", but only use the terms "anchor resource" and "non-anchor resource" to describe the method. The resource can be a cell, a carrier, a BWP, or frequency domain related resources (frequency unit, carrier group), etc.

[0300] The terms “anchor / non-anchor” used in this application may also be replaced by terms with similar or identical meanings such as “Primary / Secondary”, “primary / secondary”, “major / minor”, ​​etc.

[0301] The "measurement configuration information" described in this application indicates the configuration information of the reference signal used for measurement, and its applicable scenarios include at least one of the following. Further details of the embodiments are omitted:

[0302] The non-anchored carrier is a time division duplex (TDD) carrier. The network configures reference signals for measurement on the TDD carrier, such as primary synchronization signal (PSS) / secondary synchronization signal (SSS), SSB, channel state information-reference signal (CSI-RS), tracking reference signal (TRS), etc.

[0303] The non-anchored carrier is a TDD carrier, and the network configures a reference signal for measurement on the associated carrier of the TDD carrier. The associated carrier and the TDD carrier may have an intra-band, inter-band, quasi-co-located, or other relationships.

[0304] The non-anchored carrier is a frequency division duplex (FDD) uplink carrier, and the network configures a reference signal for measurement on the downlink carrier associated with the FDD uplink carrier;

[0305] The non-anchored resource is a supplementary uplink (SUL) or UL only resource, and the network configures a reference signal for measurement on the reference downlink resource (anchored resource or non-anchored resource) of the SUL resource;

[0306] The reference downlink resource for the SUL or UL only resource is a downlink resource associated with an anchored resource, or a downlink resource associated with a configured resource (anchored or non-anchored resource), or a downlink resource associated with a resource that satisfies a first condition, wherein the first condition is at least one of the following:

[0307] Resources in the same band as the non-anchored resource;

[0308] The resource that is closest to the non-anchored resource in the frequency domain;

[0309] Resources that use the same radio frequency (RF) as the non-anchored resource;

[0310] Resources that can use the same RF within the same band combination or group as the non-anchored resource definition;

[0311] To simplify the description of the embodiments, the term "the terminal performs measurement for non-anchored resources" is used. This can be understood as the terminal measuring the reference signal of the target non-anchored resource, the reference signal of the resource associated with the target non-anchored resource, or the reference signal of the anchored resource in the above scenarios.

[0312] For example, the non-anchored resource is a TDD band, on which the terminal performs uplink and downlink transmissions and measurements. For example, the non-anchored resource is an FDD UL band, on which the terminal performs downlink measurements on its paired FDD DL band. For example, the non-anchored resource is a TDD band, but no SSB is transmitted on it; the terminal performs measurements on an associated band (e.g., the associated band is the anchored resource's band; or, the associated band is another non-anchored resource that is also an associated resource). For example, no downlink synchronization / reference signal is transmitted on the non-anchored resource; the terminal synchronizes the downlink synchronization of the non-anchored resource using the anchored resource's synchronization / reference signal. Therefore, performing measurements on the non-anchored resource actually measures the synchronization / reference signal on its corresponding anchored resource.

[0313] The specific process is the same as... Figure 4 ;

[0314] Step 1:

[0315] The terminal receives first configuration information sent by the network-side device, the first configuration information including at least one of the following:

[0316] Random access resource configuration information;

[0317] Carrier / cell / BWP configuration information containing the random access resource configuration information;

[0318] The measurement configuration information of the carrier / cell / BWP;

[0319] The measurement configuration information of the associated carrier / cell / BWP;

[0320] The on-demand reference signal configuration information for the carrier / cell / BWP;

[0321] The on-demand reference signal configuration information of the associated carrier / cell / BWP;

[0322] Random access configuration information anchored to carrier / cell / BWP;

[0323] Measurement configuration information for anchoring carrier / cell / BWP;

[0324] First measurement threshold;

[0325] Second measurement threshold;

[0326] Third measurement threshold;

[0327] Fourth measurement threshold;

[0328] Fifth measurement threshold;

[0329] The term "measurement threshold" can also be referred to as "threshold" or "threshold value". For a detailed explanation, please refer to the relevant description in Example 1.

[0330] First package delayed budget measurement threshold;

[0331] Does the carrier / cell / BWP support emergency services?

[0332] The priority of the carrier / cell / BWP;

[0333] The RSRP conditions are met. Subsequently, the terminal selects a random access carrier based on the priority of carrier 1 and carrier 3.

[0334] The selection probability of the carrier / cell / BWP;

[0335] The terminal type associated with the carrier / cell / BWP may include RedCap, IoT, NTN, UAV, VSAT, and other terminal types.

[0336] Step 2 (Step 2 is optional; some methods in Step 3 do not require the information indicated in Step 2):

[0337] The terminal receives first indication information sent by the network-side device. (For example, the first indication information is carried via SIB / RRC dedicated signalling / MAC CE / DCI (egpaging, UE dedicated signalling, group common signalling)).

[0338] The first indication information can be the first configuration information. For example, as described in a below, when the network is configured with random access configuration information on the carrier / cell / BWP, it can be understood as instructing the terminal to use the carrier / cell / BWP to perform random access.

[0339] The first indication information can also be indication information independent of the first configuration information. For example, as described in a below, when the network uses SIB to configure random access configuration information on the carrier / cell / BWP, it can also indicate in the random access configuration information that the random access resources on the carrier / cell / BWP are in a deactivated state. Subsequently, the network can use DCI to dynamically activate or deactivate the random access resources on the carrier / cell / BWP.

[0340] The first indication information includes at least one of the following:

[0341] Instruct the terminal to perform random access using carrier / cell / BWP

[0342] The term "instruction" can also be understood as "allow", "activate", or "enable".

[0343] The term "use" can also be understood as "use only", "use preferentially", or "can be used".

[0344] Some examples are as follows:

[0345] a: Instructs the terminal to perform random access only on the anchored resource.

[0346] For example, the network can directly or indirectly instruct, either by disallowing / deactivating / disabling the terminal from performing random access on a non-anchored carrier / cell / BWP, or by not configuring any non-anchored carrier / cell / BWP containing random access resources, to indicate that "the terminal performs random access only on the anchored carrier / cell / BWP".

[0347] Beneficial effects: Including this instruction in the first instruction message has the advantage that the network only needs to enable anchored resources and disable all non-anchored resources when under low load. Therefore, the network does not need to transmit non-anchored resources, and the terminal does not need to maintain related measurements for non-anchored resource transmission, which is beneficial for both network and terminal energy saving.

[0348] b: Instruct / allow / activate / enable the terminal to perform random access only on non-anchored resources;

[0349] For example, the network can directly or indirectly instruct that "the terminal performs random access only on the anchor carrier / cell / BWP" by configuring a non-anchored carrier / cell / BWP that contains random access resources.

[0350] For example, anchor cells can be pre-configured with semi-static anchor cell / non-anchor cell random access resources in the SIB, and then DCI can be used to dynamically instruct the terminal whether to perform random access only on non-anchor cells.

[0351] Beneficial effect: The advantage of including this instruction in the first instruction information is that when the anchor resource is under high load, the network can offload the transmission to non-anchor resources for a period of time, preventing the terminal from performing transmission on the anchor resource during this period, thus obtaining the benefits of random access load balancing.

[0352] c: Instruct / allow / activate / enable terminals to preferentially perform random access on non-anchored resources;

[0353] For example, implementation c can be indicated through protocol agreement or directly over the network.

[0354] For example, anchor cells can be pre-configured with semi-static anchor cell / non-anchor cell random access resources in the SIB, and then DCI can be used to dynamically instruct the terminal whether to prioritize random access on the non-anchor cell.

[0355] Beneficial effects: The advantage of including this instruction in the first instruction information is that when the anchor resource is under high load, the network can offload subsequent transmissions to non-anchor resources for a period of time, thus gaining the benefits of random access load balancing. At the same time, the network still allows terminals to perform random access from the anchor resource, preventing terminals from being unable to use the non-anchor resource for random access because they are located outside the coverage area of ​​the non-anchor resource.

[0356] d: Indicates / allows / activates / enables the terminal to perform random access on non-anchored resources;

[0357] For example, the network can directly or indirectly instruct / allow / activate / enable "the terminal can perform random access on the anchored carrier / cell / BWP" by configuring a carrier / cell / BWP that contains random access resources.

[0358] e1: Candidate / Activated RACH resource;

[0359] The Candidate / Activated RACH resource can be a single resource or a list of resources. For example, the network indicates a list of candidate RACH carriers.

[0360] Optionally, the Candidate / Activated RACH resource may include at least an anchor resource.

[0361] Optionally, the Candidate / Activated RACH resource is related to UE capabilities or UE characteristics.

[0362] For example, if a carrier in the RACH carrier list requires the UE to support a bandwidth of 40MHz or higher, and the terminal only supports a bandwidth of 20MHz, the UE cannot use that carrier for random access, even if that carrier is included in the RACH carrier list. The UE can only use other carriers in the RACH carrier list whose bandwidth meets the UE's capabilities for random access.

[0363] For example, if a carrier in the RACH BWP list requires RedCap UEs to use it, then non-RedCap UEs cannot use that BWP for random access, even if the BWP is included in the RACH BWP list.

[0364] Optionally, the RACH carrier / cell / BWP list is represented in bitmap form. For example, each bit in the bitmap corresponds to a carrier / cell / BWP. When a bit is set to 1, it means that the carrier / cell / BWP corresponding to that bit is available for RACH; otherwise, the carrier / cell / BWP corresponding to that bit is excluded from RACH. For example, when the NW sends a paging message to the UE, the paging message indicates the RACH carrier / cell / BWP list. That is, the NW uses DCI to dynamically indicate to the UE which carrier / cell / BWPs are available for random access.

[0365] Beneficial effect: The advantage of the network including this instruction in the first instruction information is that the network can dynamically control the resources used by IDLE UE for random access over a period of time.

[0366] e2: Exclude / Deactivated RACH resource;

[0367] The excluded / deactivated RACH resource can be a single resource or a list of resources. For example, the network indicates an excluded RACH cell list.

[0368] Optionally, the Excluded / Deactivated RACH resource may contain only non-anchored resources.

[0369] Optionally, the Excluded / Deactivated RACH resource is related to UE capabilities or UE characteristics.

[0370] Optionally, the excluded / deactivated RACH resource is represented in the form of a bitmap. For example, each bit in the bitmap corresponds to a resource. When a bit is set to 0, it means that the resource corresponding to that bit is excluded from RACH; otherwise, the resource corresponding to that bit can be used for RACH.

[0371] Beneficial effect: The advantage of the network including this instruction in the first instruction information is that the network can dynamically control the random access of IDLE UE to prohibited resources within a certain period of time.

[0372] f: First measurement threshold;

[0373] The first measurement threshold is used to indicate that when the terminal's measurement results for the carrier / cell / BWP configured with random access resources meet the conditions described in each embodiment of step 3 after comparison with the measurement threshold, it can initiate random access on the carrier / cell / BWP configured with random access resources.

[0374] Beneficial effect: The advantage of the network including this instruction in the first instruction information is that it enables the terminal to randomly access only the carrier / cell / BWP with better signal strength / signal quality.

[0375] g1: Second measurement threshold;

[0376] g2: Third measurement threshold;

[0377] g3: Fourth measurement threshold;

[0378] The second / third / fourth measurement thresholds are used to compare the relevant measurement differences between the anchored carrier / cell / BWP and the non-anchored carrier / cell / BWP, or to refer to the relevant measurement differences between the carrier / cell / BWP and the non-anchored carrier / cell / BWP, and then used by the terminal to determine the target resource for random access. As described in steps 3, implementation methods e1-e3.

[0379] The reference carrier / cell / BWP can be a non-anchored carrier / cell / BWP. For example, there are two non-co-located sites, site 1 and site 2. Site 1 carries one anchored carrier / cell / BWP and one non-anchored carrier / cell / BWP. Site 2 carries two non-anchored carrier / cell / BWPs, one of which is the reference carrier / cell / BWP for the other non-anchored carrier / cell / BWP.

[0380] Beneficial effect: The advantage of the network including this instruction in the first instruction information is that it enables the terminal to make random access in non-anchored carriers / cells / BWPs with good signal strength / signal quality.

[0381] The term "measuring threshold" can also be referred to as "threshold" or "threshold value".

[0382] Optionally, the first / second / third / fourth measurement threshold features include at least one of the following:

[0383] The measurement threshold is the RSRP threshold, or the RSRQ threshold, or the CLI threshold, or the RSSI threshold;

[0384] For example, when the measurement threshold is the RSRP threshold, it is used to compare with the RSRP measurement result obtained by the terminal; when the measurement threshold is the RSRQ threshold, it is used to compare with the RSRQ measurement result obtained by the terminal; and so on.

[0385] The measurement threshold is configured for each resource granularity; the resource granularity includes band / / cell / carrier / BWP / beam.

[0386] The measurement threshold is configured for each resource / resource group; the resource / resource group includes band / bandgroup / carrier / carrier group / cell / cell group / BWP / BWP group / beam.

[0387] h1: Whether the terminal initiates random access only for emergency call / emergency service on the anchored resource;

[0388] For example, an anchored cell (cell 1) has three associated non-anchored cells (cell 2, cell 3, cell 4). The network instructs the terminal to only initiate an emergency call in cell 1.

[0389] For example, an SIB can specify that the emergency call cell = {anchor, all}. If the emergency call cell = anchor, the terminal can only initiate random access for an emergency call in the anchor cell; if the emergency call cell = all, the terminal can initiate random access for an emergency call in any cell.

[0390] h2: The target resource for which the terminal initiates random access for an emergency call / emergency service;

[0391] For example, an anchored cell (cell 1) has three associated non-anchored cells (cell 2, cell 3, cell 4). The network instructs cell 1 and cell 2 to initiate an emergency call (e.g., cell 2 is sending an Always OnSSB, and the terminal can easily obtain the measurement results from cell 2).

[0392] Beneficial effect: The advantage of the network including h1 / h2 in the first indication information is that when the terminal needs to initiate random access for emergency services, it can directly initiate random access on the anchored resource or the target resource indicated by the network.

[0393] i: First package delay budget measurement threshold;

[0394] Note: Packet Delay Budget (PDB).

[0395] j: Resource selection priority;

[0396] For example, an anchored cell (cell 1) has three associated non-anchored cells (cell 2, cell 3, cell 4). If all three non-anchored cells can be used for random access, the terminal selects the cell for random access according to the selection priority of each non-anchored cell indicated by the network.

[0397] For example, cell 2 has a priority of 1 (priority 1 is the highest priority), cell 3 has a priority of 2, and cell 4 has a priority of 3. If the terminal selects a non-anchored cell for random access, cell 2 is selected first. If cell 2 is unavailable when the terminal selects a non-anchored cell for random access (e.g., the network dynamically prohibits cell 2 from being used for random access, or the measurement result of the terminal performing a measurement on cell 2 is lower than the first measurement threshold), and only cell 3 and cell 4 are available, then the terminal selects cell 3 first according to priority.

[0398] k: Resource selection probability;

[0399] For example, an anchored cell (cell 1) has three associated non-anchored cells (cell 2, cell 3, cell 4). If all three non-anchored cells can be used for random access, the terminal selects the cell for random access based on the selection probability of each non-anchored cell indicated by the network.

[0400] For example, the network indicates that cells 1 through 4 can all be used for random access, and the selection probability of each cell is 25%. When a terminal initiates random access, it randomly selects a cell from cells 1 through 4 for random access according to the aforementioned probabilities.

[0401] For example, the network instructs the terminal to use only non-anchored cells for random access. The network configures cell selection probabilities {cell 2 = 30%, cell 3 = 30%, cell 4 = 40%} for the cell list containing cells 2 / 3 / 4. When the terminal initiates random access, it randomly selects a cell from cells 2 / 3 / 4 for random access according to these probabilities.

[0402] Step 3:

[0403] The terminal determines random access resources based on the first configuration information or first indication information sent by the network-side device. Some examples are as follows:

[0404] a: If the first indication information indicates that the terminal performs random access only on the anchored resource, then the terminal determines to use the anchored resource to perform random access.

[0405] For example, the network can semi-statically pre-configure cells containing random access resource configurations, including anchor cells and non-anchor cells, using SIBs. Subsequently, the network can dynamically instruct the terminal to perform random access only through the anchor cell using DCI. If the terminal receives the instruction from the DCI, then when the terminal initiates random access, it determines that it will initiate random access through the anchor cell.

[0406] b: If the first indication information indicates / allows / activates / enables the terminal to perform random access only on non-anchored resources, then the terminal determines to use the target non-anchored resource to perform random access;

[0407] For example, the base station indicates RACH cell = {anchor} or {non-anchor} via SIB or group common DCI.

[0408] For example, in a network deployment scenario, all carriers / cells / BWPs are co-located. If the base station confirms that all carriers / cells / BWPs configured with random access resources are available (e.g., these carriers / cells / BWPs have similar coverage areas), the base station can instruct the terminal to perform random access only on non-anchored carriers / cells / BWPs without worrying that the terminal will not have available non-anchored carriers / cells / BWPs.

[0409] Optionally, the non-anchor resource is configured with random access resources; for example, there are two non-anchor cells, one configured with RACH resources and the other without RACH resources, and the terminal determines to use the non-anchor cell configured with RACH resources to perform random access.

[0410] Optionally, if there are multiple non-anchored resources that contain random access resources, the terminal determines the target non-anchored resource for performing random access by using at least one of the following:

[0411] The measurement result performed by the terminal on the target non-anchored resource is greater than or equal to the first measurement threshold;

[0412] The terminal determines the target non-anchored resource based on the resource priority indicated by the network;

[0413] The terminal determines the target non-anchored resource based on the resource selection probability indicated by the network;

[0414] The terminal randomly selects a non-anchored resource as the target.

[0415] c: If the first indication information indicates / allows / activates / enables the terminal to preferentially perform random access on non-anchored resources, or the protocol stipulates that the terminal preferentially performs random access on non-anchored resources, then the terminal performs at least one of the following:

[0416] If the terminal has at least one measurement result for non-anchored resources that is greater than or equal to the first measurement threshold, the terminal determines to use the target non-anchored resource to perform random access.

[0417] Optionally, if there are multiple non-anchored resources that contain random access resources, the terminal determines the target non-anchored resource for performing random access by using at least one of the following:

[0418] The measurement result performed by the terminal on the target non-anchored resource is greater than or equal to the first measurement threshold;

[0419] The terminal determines the target non-anchored resource based on the resource priority indicated by the network;

[0420] The terminal determines the target non-anchored resource based on the resource selection probability indicated by the network;

[0421] The terminal randomly selects a non-anchored resource as the target.

[0422] Otherwise, the terminal determines to use anchored resources to perform random access;

[0423] d: If the first indication information indicates / allows / activates / enables the terminal to perform random access on a non-anchored resource, the terminal determines the target resource for performing random access by at least one of the following:

[0424] The measurement result performed by the terminal on the target resource is greater than or equal to the first measurement threshold;

[0425] The terminal determines the target resource according to the resource priority agreed upon in the protocol or indicated by the network;

[0426] For example, the protocol can stipulate that when a terminal has available anchored and non-anchored resources to perform random access, the terminal will preferentially perform random access through non-anchored resources.

[0427] The terminal determines the target resource based on the resource selection probability indicated by the network;

[0428] The terminal randomly selects the target resource;

[0429] e1: If the difference between the measurement result of the anchored resource or reference resource and the measurement result of the non-anchored resource is greater than or equal to the second measurement threshold, the terminal uses the anchored resource to perform random access.

[0430] For example, if the difference between RSRP1 measured by the anchor cell and RSRP2 measured by the non-anchor cell (RSRP1-RSRP2) is greater than or equal to the second measurement threshold (RSRP-threshold-2), then the terminal uses the anchor cell for random access.

[0431] The comparison between RSRP measured with reference cells and RSRP measured with non-anchor cells is similar and will not be elaborated further.

[0432] e2: If the difference between the measurement result of the non-anchored resource or reference resource and the measurement result of the anchored resource is greater than or equal to the third measurement threshold, the terminal uses the anchored resource to perform random access.

[0433] For example, if the difference between RSRP2 measured by the non-anchor cell and RSRP1 measured by the anchor cell (RSRP2-RSRP1) is greater than or equal to the third measurement threshold (RSRP-threshold-3), then the terminal uses the non-anchor cell for random access.

[0434] The comparison between RSRP measured with reference cells and RSRP measured with non-anchor cells is similar and will not be elaborated further.

[0435] e3: If the difference between the measurement result of the anchored resource or reference resource and the measurement result of the non-anchored resource is less than or equal to the fourth measurement threshold, the terminal determines the target resource for performing random access by at least one of the following:

[0436] The measurement result performed by the terminal on the target resource is greater than or equal to the first measurement threshold;

[0437] The terminal determines the target resource according to the resource priority agreed upon in the protocol or indicated by the network;

[0438] For example, the protocol can stipulate that when a terminal has available anchored and non-anchored resources to perform random access, the terminal will preferentially perform random access through non-anchored resources.

[0439] The terminal determines the target resource based on the resource selection probability indicated by the network;

[0440] The terminal randomly selects the target resource;

[0441] For example, the difference between RSRP2 measured by non-anchor cells and RSRP1 measured by anchor cells.

[0442] |RSRP2-RSRP1|<=the fourth measurement threshold RSRP-threshold-4, indicating that the quality of the anchor cell and the non-anchor cell is similar. The terminal understands that both the anchor cell and the non-anchor cell are usable, so the target resource can be determined by referring to the methods in implementation d.

[0443] The comparison between RSRP measured with reference cells and RSRP measured with non-anchor cells is similar and will not be elaborated further.

[0444] Regarding the implementation method of step 3 above:

[0445] Optionally, the target non-anchored resource or the target resource is included in the Candidate / Activated RACH resource indicated by the first indication information;

[0446] Optionally, the target non-anchored resource or the target resource is not included in the Excluded / Deactivated RACH resource indicated by the first indication information;

[0447] f: If the terminal initiates a random access procedure for an emergency call / emergency service, the terminal performs at least one of the following:

[0448] The terminal determines to use anchored resources to initiate random access;

[0449] In other words, the terminal always initiates random access for emergency calls / emergency services on the anchored resource.

[0450] The beneficial effect is that the terminal can directly use the anchored resources to initiate random access, which can potentially reduce the latency of the terminal initiating random access for emergency calls.

[0451] If the terminal does not have measurement results for non-anchored resources, the terminal determines to initiate random access using anchored resources;

[0452] The beneficial effect is that the terminal can directly use the anchored resource to initiate random access without having to perform measurement for the non-anchored resource first, and then initiate random access, which can reduce the latency of the terminal initiating random access for emergency calls.

[0453] If the network instructs the terminal to initiate random access only for emergency call / emergency service on the anchor resource, the terminal determines to use the anchor resource to initiate random access;

[0454] If the network indicates that the terminal can initiate random access for emergency call / emergency service on any resource, the terminal determines to use the anchored resource to initiate random access through the various sub-implementations of implementation method d;

[0455] If the network instructs the terminal to initiate random access to the target resource for an emergency call / emergency service, the terminal determines to use the target resource to initiate random access.

[0456] Optionally, if the network indicates multiple target resources, the terminal determines to initiate random access using anchor resources through each sub-implementation of implementation d;

[0457] g: If the PDB of the service initiated by the terminal for random access is less than the delay budget measurement threshold of the first packet, the terminal shall perform at least one of the following:

[0458] Determine whether to use anchor resources to initiate random access;

[0459] If the terminal does not have measurement results for non-anchored resources, the terminal determines to initiate random access using anchored resources;

[0460] Step 4:

[0461] The terminal initiates a random access procedure based on the random access resources determined in step 3.

[0462] Example 3: Measurement-based RACH carrier / cell / BWP selection (distinguishing between anchored and non-anchored resources)

[0463] The process of Example 3 is the same. Figure 4 Steps 1, 2, and 4 can be referred to the corresponding descriptions in Example 2. Regarding step 3:

[0464] The terminal determines random access resources based on the first configuration information or first indication information sent by the network-side device. This includes:

[0465] Step 3a: Based on the first configuration information or first indication information sent by the network-side device, if the non-anchored resource meets at least one of the following conditions, the terminal determines at least one non-anchored resource as a candidate random access resource.

[0466] a1: The first configuration information includes random access configuration information for non-anchored resources;

[0467] a2: The first indication information indicates that the terminal uses non-anchored resources to perform random access;

[0468] b1: The terminal's measurement result for non-anchored resources is greater than or equal to the first measurement threshold;

[0469] b2: The terminal's measurement result of the reference resource for the non-anchored resource is greater than or equal to the second measurement threshold;

[0470] c1: When a terminal initiates random access, there are measurement results for non-anchored resources;

[0471] c2: When a terminal initiates random access, it has measurement results of reference resources for non-anchored resources;

[0472] d1: The priority of the non-anchored resource indicated by the first configuration information is higher than or equal to the first priority threshold indicated by the first indication information;

[0473] d2: The priority of the non-anchored resource indicated by the first configuration information is lower than or equal to the first priority threshold indicated by the first indication information;

[0474] e1: The difference between the measurement results of non-anchored resources and the measurement results of anchored resources is less than or equal to the third measurement threshold;

[0475] e2: The difference between the measurement results of the reference resource and the measurement results of the anchor resource is less than or equal to the fourth measurement threshold.

[0476] e3: The difference between the measurement result of the non-anchored resource and the measurement result of the reference resource of the anchored resource is less than or equal to the fifth measurement threshold;

[0477] e4: The difference between the measurement result of the reference resource of the non-anchored resource and the measurement result of the reference resource of the anchored resource is less than or equal to the sixth measurement threshold.

[0478] e5: The terminal's measurement result of the anchored resource is less than or equal to the seventh measurement threshold;

[0479] f: If the target service for the random access initiated by the terminal is an emergency service, and the first configuration information indicates that the non-anchored resource supports the emergency service;

[0480] g: If the PDB of the target service initiated by the terminal for random access is less than or equal to the first packet delay budget measurement threshold of the non-anchored resource indicated by the first configuration information;

[0481] Step 3b

[0482] The terminal determines the target random access resource from at least one candidate random access resource determined in step 3b, based on the first configuration information or the first indication information. This includes at least one of the following:

[0483] a: The terminal determines the target random access resource based on the priority of the candidate random access resources indicated by the first configuration information;

[0484] b: The terminal determines the target random access resource based on the selection probability of the candidate random access resource indicated by the first configuration information;

[0485] c: The terminal randomly selects one candidate random access resource from at least one candidate random access resource and determines it as the target random access resource.

[0486] This application provides a random access device. As an example, the random access device may be a communication device or a component within a communication device, such as a chip. The communication device may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0487] The random access device includes a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor can include general-purpose processors, special-purpose processors, such as a Central Processing Unit (CPU), microprocessor, Digital Signal Processor (DSP), Artificial Intelligence (AI) processor, Graphics Processing Unit (GPU), Application Specific Integrated Circuit (ASIC), Network Processor (NP), Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules can be implemented by a communication interface, which can include one or more of the following: transceiver, pins, circuits, bus, radio frequency unit, etc.

[0488] For details, see Figure 5 When the random access device is a terminal or a component within a terminal, the random access device 500 includes:

[0489] The first receiving module 501 is used to receive first information from the network-side device;

[0490] The first processing module 502 is used to determine a target random access resource from at least one first target resource based on the first information.

[0491] The second processing module 503 is used to initiate random access based on the target random access resource;

[0492] The first information includes configuration information related to random access to the first target resource.

[0493] Optionally, the first information includes at least one of the following:

[0494] The random access configuration information of the first target resource;

[0495] Measurement configuration information of the first target resource;

[0496] Measurement configuration information of the associated resources of the first target resource;

[0497] On-demand reference signal configuration information for the first target resource;

[0498] On-demand reference signal configuration information of the associated resources of the first target resource;

[0499] Measurement thresholds related to the selection of random access resources;

[0500] PDB measurement threshold;

[0501] The first piece of information is used to indicate whether the first target resource supports emergency services.

[0502] The priority of the first target resource;

[0503] The probability of selecting the first target resource;

[0504] The terminal type associated with the first target resource.

[0505] Optionally, the device further includes:

[0506] The second receiving module is used to receive second information from the network-side device;

[0507] The second information is used to indicate at least one of the following:

[0508] Perform random access using the first target resource;

[0509] Priority thresholds related to the selection of random access resources.

[0510] Optionally, the device further includes:

[0511] The third processing module is used to determine the target random access resource based on the second information when receiving the second information from the network-side device;

[0512] The second information is used to directly indicate the target random access resource;

[0513] The first processing module is used for:

[0514] If the second information is not received from the network-side device, a target random access resource is determined in at least one of the first target resources based on the first information.

[0515] Optionally, the first processing module is configured to:

[0516] Based on the first information, a target candidate random access resource is determined in at least one of the first target resources, and the target random access resource is determined in the target candidate random access resource.

[0517] Optionally, the first processing module is configured to:

[0518] Based on the first information, it is determined that, under the condition of satisfying the first condition, at least one or more of the first target resources will be identified as the target candidate random access resources;

[0519] Based on the first information, the target random access resource is selected from the target candidate random access resources according to the first rule;

[0520] The first condition includes at least one of the following:

[0521] The first information includes the random access configuration information of the first target resource;

[0522] The measurement result of the first target resource is greater than or equal to the first measurement threshold;

[0523] The measurement result of the associated resources of the first target resource is greater than or equal to the second measurement threshold;

[0524] When initiating random access, there are measurement results for the first target resource;

[0525] When initiating random access, there are measurement results for the associated resources of the first target resource;

[0526] The priority of the first target resource indicated by the first information is higher than or equal to the first priority threshold indicated by the second information;

[0527] The priority of the first target resource indicated by the first information is lower than or equal to the second priority threshold indicated by the second information;

[0528] The target service for which random access is initiated is an emergency service, and the first information indicates that the first target resource supports emergency services;

[0529] The PDB of the target service initiating random access is less than or equal to the PDB measurement threshold indicated by the first information;

[0530] The terminal type is included in the terminal type associated with the first target resource indicated by the first information;

[0531] The first rule includes at least one of the following:

[0532] The target random access resource is determined based on the priority of the target candidate random access resource indicated by the first information;

[0533] The target random access resource is determined based on the selection probability of the target candidate random access resource indicated by the first information;

[0534] Randomly select one random access resource from at least one of the target candidate random access resources and determine it as the target random access resource.

[0535] Optionally, at least one of the first target resources includes a second target resource;

[0536] Wherein, the second target resource is the resource corresponding to the anchored cell or the anchored frequency domain resource, or the resource corresponding to the non-anchored cell or the non-anchored frequency domain resource;

[0537] Wherein, at least one of the first target resources, other than the second target resource, is a first resource corresponding to a non-anchored cell or a first non-anchored frequency domain resource.

[0538] Optionally, the first processing module is configured to:

[0539] Based on the first information, it is determined that, under the condition of satisfying the second condition, at least one or more of the first target resources will be identified as the target candidate random access resources;

[0540] The target random access resource is determined from the target candidate random access resources;

[0541] The second condition includes at least one of the following:

[0542] The difference between the measurement result of the third target resource and the measurement result of the second target resource is less than or equal to the third measurement threshold;

[0543] The difference between the measurement result of the associated resource of the third target resource and the measurement result of the second target resource is less than or equal to the fourth measurement threshold;

[0544] The difference between the measurement result of the third target resource and the measurement result of the associated resource of the second target resource is less than or equal to the fifth measurement threshold;

[0545] The difference between the measurement results of the associated resources of the third target resource and the measurement results of the associated resources of the second target resource is less than or equal to the sixth measurement threshold;

[0546] The terminal's measurement result of the second target resource is less than or equal to the seventh measurement threshold;

[0547] The third target resource is at least one second resource or a second non-anchored frequency domain resource corresponding to a non-anchored cell in the first target resource.

[0548] Optionally, the first processing module is configured to:

[0549] Based on the first information, one or more resources from at least one of the first target resources are identified as the target candidate random access resources;

[0550] Based on the first information, the target random access resource is selected from the target candidate random access resources according to the second rule;

[0551] The second rule includes at least one of the following:

[0552] If the target service for which the terminal initiates random access is an emergency service, the terminal determines the second target resource as the target random access resource.

[0553] If the PDB of the target service for which the terminal initiates random access is less than or equal to the PDB measurement threshold indicated by the first information, the terminal determines the second target resource as the target random access resource.

[0554] When the terminal initiates random access, if there is only a measurement result for the second target resource, the terminal determines the second target resource as the target random access resource.

[0555] The second target resource is the resource corresponding to the anchored cell or the anchored frequency domain resource.

[0556] Optionally, the device further includes:

[0557] The fourth processing module is used to request the on-demand reference signal of the first target resource based on the on-demand reference signal configuration information of the first target resource when a random access is initiated and there is no measurement result for the first target resource, or to request the on-demand reference signal of the associated resource of the first target resource based on the on-demand reference signal configuration information of the associated resource of the first target resource.

[0558] Optionally, the device further includes:

[0559] The fifth processing module is configured to, when a target candidate random access resource is determined among at least one of the first target resources, perform at least one of the following:

[0560] A target associated resource is determined based on the measurement results of measurements performed on at least one associated resource of the first target resource; wherein the measurement result of the associated resource of the first target resource is greater than or equal to an eighth measurement threshold.

[0561] At least one of the first target resources associated with the target associated resource is identified as the target candidate random access resource.

[0562] See Figure 6When the random access device is a network-side device or a component of a network-side device, the random access device 600 includes:

[0563] The first sending module 601 is used to send first information to the terminal;

[0564] The first information includes configuration information related to random access to the first target resource.

[0565] Optionally, the first information includes at least one of the following:

[0566] The random access configuration information of the first target resource;

[0567] Measurement configuration information of the first target resource;

[0568] Measurement configuration information of the associated resources of the first target resource;

[0569] On-demand reference signal configuration information for the first target resource;

[0570] On-demand reference signal configuration information of the associated resources of the first target resource;

[0571] Measurement thresholds related to the selection of random access resources;

[0572] PDB measurement threshold;

[0573] The first piece of information is used to indicate whether the first target resource supports emergency services.

[0574] The priority of the first target resource;

[0575] The probability of selecting the first target resource;

[0576] The terminal type associated with the first target resource.

[0577] Optionally, the device further includes:

[0578] The second sending module is used to send second information to the terminal;

[0579] The second information is used to indicate at least one of the following:

[0580] Perform random access using the first target resource;

[0581] Priority thresholds related to the selection of random access resources.

[0582] Optionally, when the second information is sent to the terminal, the second information is used to directly indicate the target random access resource.

[0583] The embodiments provided in this application are capable of achieving... Figures 2 to 4 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0584] like Figure 7 As shown in the illustration, this application also provides a communication device 700, including a processor 701 and a memory 702. The memory 702 stores programs or instructions that can run on the processor 701. For example, when the communication device 700 is a terminal, the program or instructions executed by the processor 701 implement the various steps of the above-described method embodiments and achieve the same technical effect. When the communication device 700 is a network-side device, the program or instructions executed by the processor 701 implement the various steps of the above-described method embodiments and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0585] This application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps as described in the method embodiment. This terminal embodiment corresponds to the above-described terminal-side method embodiment; all implementation processes and methods of the above method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal can be... Figure 5 The apparatus shown. Specifically, Figure 8 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0586] The terminal 800 includes, but is not limited to, at least some of the following components: radio frequency unit 801, network module 802, audio output unit 803, input unit 804, sensor 805, display unit 806, user input unit 807, interface unit 808, memory 809, and processor 810.

[0587] Those skilled in the art will understand that the terminal 800 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 810 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 8 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0588] It should be understood that, in this embodiment, the input unit 804 may include a graphics processor 8041 and a microphone 8042. The graphics processor 8041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 806 may include a display panel 8061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 807 includes at least one of a touch panel 8071 and other input devices 8072. The touch panel 8071 is also called a touch screen. The touch panel 8071 may include two parts: a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0589] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 801 can transmit it to the processor 810 for processing; in addition, the radio frequency unit 801 can send uplink data to the network-side device. Typically, the radio frequency unit 801 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0590] The memory 809 can be used to store software programs or instructions, as well as various data. The memory 809 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 809 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 809 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0591] Processor 810 may include one or more processing units; optionally, processor 810 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 810.

[0592] The processor 810 is used to receive first information from the network-side device;

[0593] Processor 810 is used to determine a target random access resource in at least one first target resource based on the first information;

[0594] Processor 810 is configured to initiate random access based on the target random access resource;

[0595] The first information includes configuration information related to random access to the first target resource.

[0596] Optionally, the first information includes at least one of the following:

[0597] The random access configuration information of the first target resource;

[0598] Measurement configuration information of the first target resource;

[0599] Measurement configuration information of the associated resources of the first target resource;

[0600] On-demand reference signal configuration information for the first target resource;

[0601] On-demand reference signal configuration information of the associated resources of the first target resource;

[0602] Measurement thresholds related to the selection of random access resources;

[0603] PDB measurement threshold;

[0604] The first piece of information is used to indicate whether the first target resource supports emergency services.

[0605] The priority of the first target resource;

[0606] The probability of selecting the first target resource;

[0607] The terminal type associated with the first target resource.

[0608] Optionally, the processor 810 is configured to receive second information from the network-side device;

[0609] The second information is used to indicate at least one of the following:

[0610] Perform random access using the first target resource;

[0611] Priority thresholds related to the selection of random access resources.

[0612] Optionally, the processor 810 is configured to determine the target random access resource based on the second information when receiving the second information from the network-side device;

[0613] The second information is used to directly indicate the target random access resource;

[0614] Processor 810, used for:

[0615] If the second information is not received from the network-side device, a target random access resource is determined in at least one of the first target resources based on the first information.

[0616] Optionally, the processor 810 is used for:

[0617] Based on the first information, a target candidate random access resource is determined in at least one of the first target resources, and the target random access resource is determined in the target candidate random access resource.

[0618] Optionally, the processor 810 is used for:

[0619] Based on the first information, it is determined that, under the condition of satisfying the first condition, at least one or more of the first target resources will be identified as the target candidate random access resources;

[0620] Based on the first information, the target random access resource is selected from the target candidate random access resources according to the first rule;

[0621] The first condition includes at least one of the following:

[0622] The first information includes the random access configuration information of the first target resource;

[0623] The measurement result of the first target resource is greater than or equal to the first measurement threshold;

[0624] The measurement result of the associated resources of the first target resource is greater than or equal to the second measurement threshold;

[0625] When initiating random access, there are measurement results for the first target resource;

[0626] When initiating random access, there are measurement results for the associated resources of the first target resource;

[0627] The priority of the first target resource indicated by the first information is higher than or equal to the first priority threshold indicated by the second information;

[0628] The priority of the first target resource indicated by the first information is lower than or equal to the second priority threshold indicated by the second information;

[0629] The target service for which random access is initiated is an emergency service, and the first information indicates that the first target resource supports emergency services;

[0630] The PDB of the target service initiating random access is less than or equal to the PDB measurement threshold indicated by the first information;

[0631] The terminal type is included in the terminal type associated with the first target resource indicated by the first information;

[0632] The first rule includes at least one of the following:

[0633] The target random access resource is determined based on the priority of the target candidate random access resource indicated by the first information;

[0634] The target random access resource is determined based on the selection probability of the target candidate random access resource indicated by the first information;

[0635] Randomly select one random access resource from at least one of the target candidate random access resources and determine it as the target random access resource.

[0636] Optionally, at least one of the first target resources includes a second target resource;

[0637] Wherein, the second target resource is the resource corresponding to the anchored cell or the anchored frequency domain resource, or the first resource corresponding to the non-anchored cell or the first non-anchored frequency domain resource;

[0638] Wherein, at least one of the first target resources, other than the second target resource, is a resource corresponding to a non-anchored cell or a non-anchored frequency domain resource.

[0639] Optionally, the processor 810 is used for:

[0640] Based on the first information, it is determined that, under the condition of satisfying the second condition, at least one or more of the first target resources will be identified as the target candidate random access resources;

[0641] The target random access resource is determined from the target candidate random access resources;

[0642] The second condition includes at least one of the following:

[0643] The difference between the measurement result of the third target resource and the measurement result of the second target resource is less than or equal to the third measurement threshold;

[0644] The difference between the measurement result of the associated resource of the third target resource and the measurement result of the second target resource is less than or equal to the fourth measurement threshold;

[0645] The difference between the measurement result of the third target resource and the measurement result of the associated resource of the second target resource is less than or equal to the fifth measurement threshold;

[0646] The difference between the measurement results of the associated resources of the third target resource and the measurement results of the associated resources of the second target resource is less than or equal to the sixth measurement threshold;

[0647] The terminal's measurement result of the second target resource is less than or equal to the seventh measurement threshold;

[0648] The third target resource is at least one second resource or a second non-anchored frequency domain resource corresponding to a non-anchored cell in the first target resource.

[0649] Optionally, the processor 810 is used for:

[0650] Based on the first information, one or more resources from at least one of the first target resources are identified as the target candidate random access resources;

[0651] Based on the first information, the target random access resource is selected from the target candidate random access resources according to the second rule;

[0652] The second rule includes at least one of the following:

[0653] If the target service for which the terminal initiates random access is an emergency service, the terminal determines the second target resource as the target random access resource.

[0654] If the PDB of the target service for which the terminal initiates random access is less than or equal to the PDB measurement threshold indicated by the first information, the terminal determines the second target resource as the target random access resource.

[0655] When the terminal initiates random access, if there is only a measurement result for the second target resource, the terminal determines the second target resource as the target random access resource.

[0656] The second target resource is the resource corresponding to the anchored cell or the anchored frequency domain resource.

[0657] Optionally, the processor 810 is configured to, when initiating random access and there is no measurement result for the first target resource, request an on-demand reference signal for the first target resource based on the on-demand reference signal configuration information of the first target resource, or request an on-demand reference signal for an associated resource of the first target resource based on the on-demand reference signal configuration information of the associated resource of the first target resource.

[0658] Optionally, the processor 810 is configured to perform at least one of the following when a target candidate random access resource is determined in at least one of the first target resources:

[0659] A target associated resource is determined based on the measurement results of measurements performed on at least one associated resource of the first target resource; wherein the measurement result of the associated resource of the first target resource is greater than or equal to an eighth measurement threshold.

[0660] At least one of the first target resources associated with the target associated resource is determined as the target candidate random access resource;

[0661] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be described again here.

[0662] This application also provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in the figure. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and achieve the same technical effects.

[0663] Specifically, embodiments of this application also provide a network-side device, which can be... Figure 6 The apparatus shown. (As shown) Figure 9 As shown, the network-side device 900 includes: an antenna 91, a radio frequency (RF) device 92, a baseband device 93, a processor 94, and a memory 95. The antenna 91 is connected to the RF device 92. In the uplink direction, the RF device 92 receives information through the antenna 91 and sends the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes the information to be transmitted and sends it to the RF device 92. The RF device 92 processes the received information and then transmits it through the antenna 91.

[0664] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 93, which includes a baseband processor.

[0665] Baseband device 93 may include, for example, at least one baseband board on which multiple chips are disposed, such as Figure 9 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 95 via a bus interface to call the program in the memory 95 and execute the network device operations shown in the above method embodiment.

[0666] The network-side device may also include a network interface 96, such as a Common Public Radio Interface (CPRI).

[0667] Specifically, the network-side device 900 in this application embodiment further includes: instructions or programs stored in memory 95 and executable on processor 104, wherein processor 94 calls the instructions or programs in memory 95 to execute. Figure 6The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0668] Specifically, embodiments of this application also provide a network-side device. For example... Figure 10 As shown, the network-side device 1000 includes: a processor 1001, a network interface 1002, and a memory 1003. This network-side device can be... Figure 6 The device shown. The network interface 1002 is, for example, a common public radio interface (CPRI).

[0669] Specifically, the network-side device 1000 in this application embodiment further includes: instructions or programs stored in memory 1003 and executable on processor 1001, wherein processor 1001 calls the instructions or programs in memory 1003 to execute. Figure 6 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0670] 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 method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0671] The processor mentioned above is the processor in the terminal described in the above embodiments. 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. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0672] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above method embodiments and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0673] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0674] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above method embodiments and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0675] This application also provides a wireless communication system, including: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the terminal-side method as described above, and the network-side device can be used to perform the steps of the network-side method as described above.

[0676] 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.

[0677] From 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 computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0678] 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 implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A random access method, characterized in that, include: The terminal receives the first information from the network-side device; The terminal determines a target random access resource from at least one first target resource based on the first information; The terminal initiates random access based on the target random access resource; The first information includes configuration information related to random access to the first target resource.

2. The method according to claim 1, characterized in that, The first information includes at least one of the following: The random access configuration information of the first target resource; Measurement configuration information of the first target resource; Measurement configuration information of the associated resources of the first target resource; On-demand reference signal configuration information for the first target resource; On-demand reference signal configuration information of the associated resources of the first target resource; Measurement thresholds related to the selection of random access resources; Package delay budget PDB measurement threshold; The first piece of information is used to indicate whether the first target resource supports emergency services. The priority of the first target resource; The probability of selecting the first target resource; The terminal type associated with the first target resource.

3. The method according to claim 1 or 2, characterized in that, The method further includes: The terminal receives second information from the network-side device; The second information is used to indicate at least one of the following: Perform random access using the first target resource; Priority thresholds related to the selection of random access resources.

4. The method according to any one of claims 1 to 3, characterized in that, The method further includes: When the terminal receives the second information from the network-side device, the terminal determines the target random access resource based on the second information; The second information is used to directly indicate the target random access resource; The terminal determines a target random access resource from at least one first target resource based on the first information, including: If the terminal does not receive the second information from the network-side device, the terminal determines a target random access resource from at least one of the first target resources based on the first information.

5. The method according to any one of claims 1 to 4, characterized in that, The terminal determines a target random access resource from at least one first target resource based on the first information, including: The terminal determines a target candidate random access resource from at least one of the first target resources based on the first information; The terminal determines the target random access resource from the target candidate random access resources.

6. The method according to claim 5, characterized in that, The terminal determines a target candidate random access resource from at least one of the first target resources based on the first information, including: Based on the first information, the terminal determines, under the condition of satisfying the first condition, to identify one or more resources from at least one of the first target resources as the target candidate random access resources; The first condition includes at least one of the following: The first information includes the random access configuration information of the first target resource; The measurement result of the terminal on the first target resource is greater than or equal to the first measurement threshold; The measurement result of the terminal on the associated resources of the first target resource is greater than or equal to the second measurement threshold; When the terminal initiates random access, there are measurement results for the first target resource; When the terminal initiates random access, there are measurement results of associated resources of the first target resource; The priority of the first target resource indicated by the first information is higher than or equal to the first priority threshold indicated by the second information; The priority of the first target resource indicated by the first information is lower than or equal to the second priority threshold indicated by the second information; The target service for which the terminal initiates random access is an emergency service, and the first information indicates that the first target resource supports emergency services. The PDB of the target service for which the terminal initiates random access is less than or equal to the PDB measurement threshold indicated by the first information. The terminal type of the terminal is included in the terminal type associated with the first target resource indicated by the first information.

7. The method according to claim 5 or 6, characterized in that, The terminal determines the target random access resource from the target candidate random access resources, including: The terminal selects the target random access resource from the target candidate random access resources according to the first information and the first rule. The first rule includes at least one of the following: The terminal determines the target random access resource based on the priority of the target candidate random access resource indicated by the first information; The terminal determines the target random access resource based on the selection probability of the target candidate random access resource indicated by the first information; The terminal randomly selects one random access resource from at least one of the target candidate random access resources and determines it as the target random access resource.

8. The method according to any one of claims 1 to 4, characterized in that, At least one of the first target resources contains a second target resource; The second target resource is either the resource corresponding to the anchored cell or the anchored frequency domain resource, or the first resource or the first non-anchored frequency domain resource corresponding to the non-anchored cell.

9. The method according to claim 8, characterized in that, The terminal determines a target random access resource from at least one first target resource based on the first information, including: Based on the first information, the terminal determines, under the condition of satisfying the second condition, to identify at least one or more of the first target resources as the target candidate random access resources; The terminal determines the target random access resource from the target candidate random access resources; The second condition includes at least one of the following: The difference between the measurement result of the third target resource and the measurement result of the second target resource is less than or equal to the third measurement threshold; The difference between the measurement result of the associated resource of the third target resource and the measurement result of the second target resource is less than or equal to the fourth measurement threshold; The difference between the measurement result of the third target resource and the measurement result of the associated resource of the second target resource is less than or equal to the fifth measurement threshold; The difference between the measurement results of the associated resources of the third target resource and the measurement results of the associated resources of the second target resource is less than or equal to the sixth measurement threshold; The terminal's measurement result of the second target resource is less than or equal to the seventh measurement threshold; The third target resource is at least one second resource or a second non-anchored frequency domain resource corresponding to a non-anchored cell in the first target resource.

10. The method according to claim 8, characterized in that, The terminal determines a target random access resource from at least one first target resource based on the first information, including: The terminal determines one or more of the first target resources as the target candidate random access resources based on the first information. The terminal selects the target random access resource from the target candidate random access resources according to the first information and the second rule. The second rule includes at least one of the following: If the target service for which the terminal initiates random access is an emergency service, the terminal determines the second target resource as the target random access resource. If the PDB of the target service for which the terminal initiates random access is less than or equal to the PDB measurement threshold indicated by the first information, the terminal determines the second target resource as the target random access resource. When the terminal initiates random access, if there is only a measurement result for the second target resource, the terminal determines the second target resource as the target random access resource. The second target resource is the resource corresponding to the anchored cell or the anchored frequency domain resource.

11. The method according to any one of claims 1 to 10, characterized in that, The method further includes: When the terminal initiates random access, if there is no measurement result for the first target resource, the terminal requests the on-demand reference signal of the first target resource according to the on-demand reference signal configuration information of the first target resource, or requests the on-demand reference signal of the associated resource of the first target resource according to the on-demand reference signal configuration information of the associated resource of the first target resource.

12. The method according to any one of claims 5 to 11, characterized in that, When a target candidate random access resource is determined in at least one of the first target resources, the method further includes at least one of the following: The terminal determines the target associated resource based on the measurement result of performing a measurement on at least one associated resource of the first target resource; wherein the measurement result of the terminal on the associated resource of the first target resource is greater than or equal to an eighth measurement threshold; The terminal determines at least one of the first target resources associated with the target associated resource as the target candidate random access resource.

13. A random access method, characterized in that, include: The network-side device sends the first information to the terminal; The first information includes configuration information related to random access to the first target resource.

14. The method according to claim 13, characterized in that, The first information includes at least one of the following: The random access configuration information of the first target resource; Measurement configuration information of the first target resource; Measurement configuration information of the associated resources of the first target resource; On-demand reference signal configuration information for the first target resource; On-demand reference signal configuration information of the associated resources of the first target resource; Measurement thresholds related to the selection of random access resources; PDB measurement threshold; The first piece of information is used to indicate whether the first target resource supports emergency services. The priority of the first target resource; The probability of selecting the first target resource; The terminal type associated with the first target resource.

15. The method according to claim 13 or 14, characterized in that, The method further includes: The network-side device sends the second information to the terminal; The second information is used to indicate at least one of the following: Perform random access using the first target resource; Priority thresholds related to the selection of random access resources.

16. The method according to any one of claims 13 to 15, characterized in that, in, When the network-side device sends the second information to the terminal, the second information is used to directly indicate the target random access resource.

17. A random access device, characterized in that, include: The first receiving module is used to receive first information from the network-side device; A first processing module is used to determine a target random access resource from at least one first target resource based on the first information. The second processing module is used to initiate random access based on the target random access resource; The first information includes configuration information related to random access to the first target resource.

18. The apparatus according to claim 17, characterized in that, The first information includes at least one of the following: The random access configuration information of the first target resource; Measurement configuration information of the first target resource; Measurement configuration information of the associated resources of the first target resource; On-demand reference signal configuration information for the first target resource; On-demand reference signal configuration information of the associated resources of the first target resource; Measurement thresholds related to the selection of random access resources; PDB measurement threshold; The first piece of information is used to indicate whether the first target resource supports emergency services. The priority of the first target resource; The probability of selecting the first target resource; The terminal type associated with the first target resource.

19. The apparatus according to claim 17 or 18, characterized in that, The device further includes: The second receiving module is used to receive second information from the network-side device; The second information is used to indicate at least one of the following: Perform random access using the first target resource; Priority thresholds related to the selection of random access resources.

20. The method according to any one of claims 17 to 19, characterized in that, The device further includes: The third processing module is used to determine the target random access resource based on the second information when receiving the second information from the network-side device; The second information is used to directly indicate the target random access resource; The first processing module is used for: If the second information is not received from the network-side device, a target random access resource is determined in at least one of the first target resources based on the first information.

21. The apparatus according to any one of claims 17 to 20, characterized in that, The first processing module is used for: Based on the first information, a target candidate random access resource is determined from at least one of the first target resources; The target random access resource is determined from the target candidate random access resources.

22. The apparatus according to claim 21, characterized in that, The first processing module is used for: Based on the first information, it is determined that, under the condition of satisfying the first condition, at least one or more of the first target resources will be identified as the target candidate random access resources; The first condition includes at least one of the following: The first information includes the random access configuration information of the first target resource; The measurement result of the first target resource is greater than or equal to the first measurement threshold; The measurement result of the associated resources of the first target resource is greater than or equal to the second measurement threshold; When initiating random access, there are measurement results for the first target resource; When initiating random access, there are measurement results for the associated resources of the first target resource; The priority of the first target resource indicated by the first information is higher than or equal to the first priority threshold indicated by the second information; The priority of the first target resource indicated by the first information is lower than or equal to the second priority threshold indicated by the second information; The target service for which random access is initiated is an emergency service, and the first information indicates that the first target resource supports emergency services; The PDB of the target service initiating random access is less than or equal to the PDB measurement threshold indicated by the first information; The terminal type is included in the terminal type associated with the first target resource indicated by the first information.

23. The apparatus according to claim 21 or 22, characterized in that, The first processing module is used for: Based on the first information, the target random access resource is selected from the target candidate random access resources according to the first rule; The first rule includes at least one of the following: The target random access resource is determined based on the priority of the target candidate random access resource indicated by the first information; The target random access resource is determined based on the selection probability of the target candidate random access resource indicated by the first information; Randomly select one random access resource from at least one of the target candidate random access resources and determine it as the target random access resource.

24. The apparatus according to any one of claims 17 to 20, characterized in that, At least one of the first target resources contains a second target resource; Wherein, the second target resource is the resource corresponding to the anchored cell or the anchored frequency domain resource, or the first resource corresponding to the non-anchored cell or the first non-anchored frequency domain resource; Wherein, at least one of the first target resources, other than the second target resource, is a first resource corresponding to a non-anchored cell or a first non-anchored frequency domain resource.

25. The apparatus according to claim 24, characterized in that, The first processing module is used for: Based on the first information, it is determined that, under the condition of satisfying the second condition, at least one or more of the first target resources will be identified as the target candidate random access resources; The target random access resource is determined from the target candidate random access resources; The second condition includes at least one of the following: The difference between the measurement result of the third target resource and the measurement result of the second target resource is less than or equal to the third measurement threshold; The difference between the measurement result of the associated resource of the third target resource and the measurement result of the second target resource is less than or equal to the fourth measurement threshold; The difference between the measurement result of the third target resource and the measurement result of the associated resource of the second target resource is less than or equal to the fifth measurement threshold; The difference between the measurement results of the associated resources of the third target resource and the measurement results of the associated resources of the second target resource is less than or equal to the sixth measurement threshold; The terminal's measurement result of the second target resource is less than or equal to the seventh measurement threshold; The third target resource is at least one second resource or a second non-anchored frequency domain resource corresponding to a non-anchored cell in the first target resource.

26. The method according to claim 24, characterized in that, The first processing module is used for: Based on the first information, one or more resources from at least one of the first target resources are identified as the target candidate random access resources; Based on the first information, the target random access resource is selected from the target candidate random access resources according to the second rule; The second rule includes at least one of the following: If the target service for which the terminal initiates random access is an emergency service, the terminal determines the second target resource as the target random access resource. If the PDB of the target service for which the terminal initiates random access is less than or equal to the PDB measurement threshold indicated by the first information, the terminal determines the second target resource as the target random access resource. When the terminal initiates random access, if there is only a measurement result for the second target resource, the terminal determines the second target resource as the target random access resource. The second target resource is the resource corresponding to the anchored cell or the anchored frequency domain resource.

27. The apparatus according to any one of claims 17 to 26, characterized in that, The device further includes: The fourth processing module is used to request the on-demand reference signal of the first target resource based on the on-demand reference signal configuration information of the first target resource when a random access is initiated and there is no measurement result for the first target resource, or to request the on-demand reference signal of the associated resource of the first target resource based on the on-demand reference signal configuration information of the associated resource of the first target resource.

28. The apparatus according to any one of claims 21 to 27, characterized in that, The device further includes: The fifth processing module is configured to, when a target candidate random access resource is determined among at least one of the first target resources, perform at least one of the following: A target associated resource is determined based on the measurement results of measurements performed on at least one associated resource of the first target resource; wherein the measurement result of the associated resource of the first target resource is greater than or equal to an eighth measurement threshold. At least one of the first target resources associated with the target associated resource is identified as the target candidate random access resource.

29. A random access device, characterized in that, include: The first sending module is used to send the first information to the terminal; The first information includes configuration information related to random access to the first target resource.

30. The apparatus according to claim 29, characterized in that, The first information includes at least one of the following: The random access configuration information of the first target resource; Measurement configuration information of the first target resource; Measurement configuration information of the associated resources of the first target resource; On-demand reference signal configuration information for the first target resource; On-demand reference signal configuration information of the associated resources of the first target resource; Measurement thresholds related to the selection of random access resources; PDB measurement threshold; The first piece of information is used to indicate whether the first target resource supports emergency services. The priority of the first target resource; The probability of selecting the first target resource; The terminal type associated with the first target resource.

31. The apparatus according to claim 29 or 30, characterized in that, The device further includes: The second sending module is used to send second information to the terminal; The second information is used to indicate at least one of the following: Perform random access using the first target resource; Priority thresholds related to the selection of random access resources.

32. The apparatus according to any one of claims 29 to 31, characterized in that, in, When the second information is sent to the terminal, the second information is used to directly instruct the target random access resource.

33. A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the random access method as described in any one of claims 1 to 12.

34. A network-side device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the random access method as described in any one of claims 13 to 16.

35. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the random access method as described in any one of claims 1 to 12, or implement the steps of the random access method as described in any one of claims 13 to 16.

36. A computer program product, characterized in that, Includes computer instructions that, when executed by a processor, implement the steps of the random access method as described in any one of claims 1 to 12, or implement the steps of the random access method as described in any one of claims 13 to 16.

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