WO2024040413A1

WO2024040413A1 - Resource reselection method, apparatus, device, and storage medium

Info

Publication number: WO2024040413A1
Application number: PCT/CN2022/114064
Authority: WO
Inventors: 江小威
Original assignee: 北京小米移动软件有限公司
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2024-02-29
Also published as: CN115669136A

Abstract

The present disclosure provides a resource reselection method, an apparatus, a device, and a storage medium. The method comprises: acquiring a channel busy ratio (CBR) threshold value configured by a network device for resource selection and/or reselection; performing CBR measurement on a resource pool configured on an activated bandwidth part (BWP) of a carrier of a terminal device to obtain a CBR measurement result, wherein the BWP supports configuration of at least one resource pool; and on the basis of the CBR threshold value and the CBR measurement result, determining at least one selected and/or reselected candidate carrier and at least one candidate resource pool corresponding to the candidate carrier. The method of the present disclosure can be applied to the situation where one carrier supports configuration of a plurality of resource pools, that is, the method of the present disclosure can be applied to a terminal device of an NR sidelink system to perform carrier selection and/or reselection.

Description

A resource reselection method, device, equipment and storage medium

Technical field

The present disclosure relates to the field of communication technology, and in particular, to resource reselection methods, devices, equipment and storage media.

Background technique

In the communication system, in order to support direct communication between terminal devices, the sidelink communication method is introduced. Among them, sidelink has two transmission resource allocation methods, one is the network dynamic scheduling method, and the other is the network dynamic scheduling method. One is that the terminal device independently selects and sends resources in the network broadcast resource pool. In addition, Carrier Aggregation (CA) technology has been introduced into the communication system to effectively increase the uplink and downlink transmission rates.

Among related technologies, the Long Term Evolution Vehicle-to-Everything (LTE V2X) and New Radio (NR) sidelink systems have supported sidelink carrier aggregation technology. Among them, the independent resource selection method For example, terminal equipment in both the LTE V2X system and the NR sidelink system can select and reselect carriers. Specifically, one carrier in the LTE V2X system supports configuring a resource pool, in which the terminal device can measure the channel occupancy rate (channel busy ratio, CBR) and reselection threshold of the configured resource pool corresponding to a certain carrier. The size relationship between them determines whether to select and/or reselect the carrier.

However, one carrier in the NR sidelink system can support the configuration of multiple resource pools. When the terminal equipment in the NR sidelink system selects and/or reselects a carrier, in addition to determining which carrier to select and/or reselect, It is also necessary to determine which resource pool of which carrier to select and/or reselect. However, there is currently no method for selecting and/or reselecting carriers for terminal equipment in the NR sidelink system.

Contents of the invention

The resource reselection method, device, equipment and storage medium proposed by the present disclosure are used to provide a method for carrier selection and/or reselection for terminal equipment in an NR sidelink system.

In a first aspect, embodiments of the present disclosure provide a resource reselection method, which is executed by a terminal device and includes:

Obtain the channel occupancy CBR threshold configured by the network device for resource selection and/or reselection;

Perform CBR measurement on the resource pool configured on the BWP of the activated bandwidth part of the carrier of the terminal device to obtain a CBR measurement result; wherein, the BWP supports the configuration of at least one resource pool;

Based on the CBR threshold and the CBR measurement result, at least one candidate carrier to be selected and/or reselected and at least one candidate resource pool corresponding to the candidate carrier are determined.

In the present disclosure, a resource reselection method is provided. The terminal device will obtain the channel occupancy CBR threshold value configured by the network device for resource selection and/or reselection; and will determine the activated BWP of the carrier of the terminal device. Perform CBR measurement on the configured resource pool to obtain CBR measurement results; among them, BWP supports configuring at least one resource pool; then, based on the CBR threshold value and CBR measurement results, at least one candidate carrier and candidate carrier will be selected and/or reselected. Corresponding to at least one candidate resource pool. Among them, one BWP in this disclosure supports the configuration of at least one resource pool, that is, one carrier supports the configuration of multiple resource pools. From this, it can be seen that this disclosure provides resources based on "one carrier supports the configuration of multiple resource pools" Reselection method, so that the method of the present disclosure can be applied to the situation of "one carrier supports the configuration of multiple resource pools", that is, the method of the present disclosure can be applied to the terminal equipment of the NR sidelink system to select carriers and/or Reselect.

In the second aspect, embodiments of the present disclosure provide a resource reselection method, which is executed by a network device and includes:

Configuring a terminal device with a CBR threshold value for resource selection and/or reselection, so that the terminal device determines priority selection and/or reselection of a resource pool or priority selection and/or reselection according to the CBR threshold value. Reselect carrier.

In a third aspect, an embodiment of the present disclosure provides a communication device, which is configured in a terminal device and includes:

The transceiver module is used to obtain the CBR threshold value configured by the network device for resource selection and/or reselection;

A processing module configured to perform CBR measurement on the resource pool configured on the activated bandwidth part BWP of the carrier of the terminal device to obtain a CBR measurement result; wherein the BWP supports the configuration of at least one resource pool;

The processing module is configured to determine, based on the CBR threshold value and the CBR measurement result, at least one candidate carrier to be selected and/or reselected and at least one candidate resource pool corresponding to the candidate carrier.

In a fourth aspect, an embodiment of the present disclosure provides a communication device, which is configured in a network device and includes:

The transceiver module is used to configure the CBR threshold value for resource selection and/or reselection to the terminal device.

In a fifth aspect, an embodiment of the present disclosure provides a communication device. The communication device includes a processor. When the processor calls a computer program in a memory, it executes the method described in the first aspect.

In a sixth aspect, an embodiment of the present disclosure provides a communication device. The communication device includes a processor. When the processor calls a computer program in a memory, it executes the method described in the second aspect.

In a seventh aspect, an embodiment of the present disclosure provides a communication device. The communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the first aspect above.

In an eighth aspect, an embodiment of the present disclosure provides a communication device. The communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the second aspect above.

In a ninth aspect, an embodiment of the present disclosure provides a communication device. The device includes a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to run the code instructions to cause the The device performs the method described in the first aspect.

In a tenth aspect, an embodiment of the present disclosure provides a communication device. The device includes a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor. The processor is used to run the code instructions to cause the The device performs the method described in the second aspect above.

In an eleventh aspect, an embodiment of the present disclosure provides a communication system, which includes the communication device described in the third aspect to the communication device described in the fourth aspect, or the system includes the communication device described in the fifth aspect to The communication device according to the sixth aspect, or the system includes the communication device according to the seventh aspect to the communication device according to the eighth aspect, or the system includes the communication device according to the ninth aspect to the tenth aspect. the above-mentioned communication device.

In a twelfth aspect, embodiments of the present invention provide a computer-readable storage medium for storing instructions used by the above-mentioned network device and/or the above-mentioned terminal device. When the instructions are executed, the network device is caused to execute the above-mentioned The method described in the first aspect, and/or causing the terminal device to perform the method described in the second aspect.

In a thirteenth aspect, the present disclosure also provides a computer program product including a computer program, which, when run on a computer, causes the computer to execute the method described in any one of the above first to second aspects.

In a fourteenth aspect, the present disclosure provides a chip system. The chip system includes at least one processor and an interface, and is used to support a network device to implement the functions involved in the method described in the first aspect, and/or to support a terminal device. Implement the functions involved in the method described in the second aspect, for example, determine or process at least one of the data and information involved in the above method. In a possible design, the chip system further includes a memory, and the memory is used to store necessary computer programs and data of the source secondary node. The chip system may be composed of chips, or may include chips and other discrete devices.

In a fifteenth aspect, the present disclosure provides a computer program that, when run on a computer, causes the computer to perform the method described in any one of the above first to second aspects.

Description of drawings

The above and/or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure;

Figure 2 is a schematic flowchart of a resource reselection method provided by another embodiment of the present disclosure;

Figure 3 is a schematic flowchart of a resource reselection method provided by yet another embodiment of the present disclosure;

Figure 4 is a schematic flowchart of a resource reselection method provided by yet another embodiment of the present disclosure;

Figure 5 is a schematic flowchart of a resource reselection method provided by another embodiment of the present disclosure;

Figure 6 is a schematic flowchart of a resource reselection method provided by yet another embodiment of the present disclosure;

Figure 7 is a schematic flowchart of a resource reselection method provided by yet another embodiment of the present disclosure;

Figure 8 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

Figure 9 is a schematic structural diagram of a communication device provided by another embodiment of the present disclosure;

Figure 10 is a block diagram of a communication device provided by an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of a chip provided by an embodiment of the present disclosure.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with aspects of embodiments of the present disclosure as detailed in the appended claims.

The terminology used in the embodiments of the present disclosure is for the purpose of describing specific embodiments only and is not intended to limit the embodiments of the present disclosure. As used in the embodiments of the present disclosure and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be called second information, and similarly, the second information may also be called first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "when" or "when" or "in response to determining."

Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present disclosure and are not to be construed as limitations of the present disclosure.

To facilitate understanding, the terminology involved in this application is first introduced.

1. Channel busy ratio (CBR)

It is a physical layer measurement that measures the current congestion level of the resource pool.

2. Resource pool

The resource pool of PSSCH is divided into multiple sub-channels in the frequency domain. These sub-channels are a set of no less than 4 PRBs that are continuous and non-overlapping in the sub-frame. The sub-channel size is (pre)configured. Resource allocation, sensing, and resource selection are performed on a sub-channel basis.

The resource pool definition of PSCCH depends on whether the (pre)configured PSCCH and PSSCH are adjacent. In the case of adjacency, the bottom pair of PRBs in each subchannel is a candidate for PSCCH, and the consecutive PRBs above this pair of PRBs in the allocated subchannel are used to transmit PSSCH. If they are not adjacent, there are other definitions.

Each UE is independently (pre)configured with a transmitting resource pool and a receiving resource pool, and is also configured with a special resource pool. .

3. Carrier wave

It is a radio wave generated by an oscillator and transmitted on a communication channel. It is modulated and used to transmit voice or other information.

In order to better understand a resource reselection method disclosed in the embodiment of the present application, the communication system to which the embodiment of the present application is applicable is first described below.

Please refer to FIG. 1 , which is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure. The communication system may include but is not limited to one network device and one terminal device. The number and form of devices shown in Figure 1 are only for examples and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more devices may be included. Network equipment, two or more terminal devices. The communication system shown in Figure 1 includes a network device 11 and a terminal device 12 as an example.

It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems. For example: long term evolution (LTE) system, fifth generation (5th generation, 5G) mobile communication system, 5G new radio (NR) system, or other future new mobile communication systems.

The network device 11 in the embodiment of the present disclosure is an entity on the network side that is used to transmit or receive signals. For example, the network device 11 may be an evolved base station (evolved NodeB, eNB), a transmission reception point (TRP), a next generation base station (next generation NodeB, gNB) in an NR system, or other base stations in future mobile communication systems. Base stations or access nodes in wireless fidelity (WiFi) systems, etc. The embodiments of the present disclosure do not limit the specific technologies and specific equipment forms used by network equipment. The network equipment provided by the embodiments of the present disclosure may be composed of a centralized unit (CU) and a distributed unit (DU). The CU may also be called a control unit (control unit). CU-DU is used. The structure can separate the protocol layers of network equipment, such as base stations, and place some protocol layer functions under centralized control on the CU. The remaining part or all protocol layer functions are distributed in the DU, and the CU centrally controls the DU.

The terminal device 12 in the embodiment of the present disclosure may be an entity on the user side for receiving or transmitting signals, such as a mobile phone. Terminal equipment can also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT), etc. The terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality ( augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical surgery, smart grid ( Wireless terminal equipment in smart grid, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, etc. The embodiments of the present disclosure do not limit the specific technology and specific equipment form used by the terminal equipment.

It can be understood that the communication system described in the embodiments of the present disclosure is to more clearly illustrate the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. As those of ordinary skill in the art will know, With the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

The resource reselection method, apparatus, equipment and storage medium provided by the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

Figure 2 is a schematic flowchart of a resource reselection method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 2, the resource reselection method may include the following steps:

Step 201: Obtain the CBR threshold configured by the network device for resource selection and/or reselection.

Among them, the method of the present disclosure can be applied to the NR sidelink system.

And, in one embodiment of the present disclosure, the CBR threshold value can be used as a criterion to determine whether a certain carrier can be used as a candidate carrier for selection and/or reselection by the terminal device, and to determine whether a certain candidate resource pool Can be used as a candidate resource pool for terminal device selection and/or reselection. Among them, the CBR threshold specifically determines whether a certain carrier can be used as a candidate carrier for selection and/or reselection by the terminal equipment, and determines whether a certain candidate resource pool can be used as a candidate resource pool for selection and/or reselection by the terminal equipment. Detailed introduction will be explained in subsequent embodiments.

And, in one embodiment of the present disclosure, the method of obtaining the CBR threshold value configured by the network device for resource selection and/or reselection may include at least one of the following:

Obtain the CBR threshold value configured by the network device for each cell (that is, different cells correspond to different CBR threshold values);

Obtain the CBR threshold value configured by the network device for each BWP (that is, different BWPs correspond to different CBR threshold values);

Obtain the CBR threshold values configured by the network device for each frequency (that is, different frequencies correspond to different CBR threshold values);

Obtain the CBR threshold value configured by the network device for the terminal device; among them, the CBR threshold value corresponding to the terminal device and the CBR threshold value corresponding to other terminal devices are respectively configured by the network device (that is, different terminal devices correspond to different CBR thresholds) value);

Obtain the CBR threshold values configured by the network device for each logical channel priority (that is, the priorities of different logical channels correspond to different CBR threshold values).

It should be noted that, in an embodiment of the present disclosure, the above-mentioned different granularities can also be combined in twos, threes, or fours, etc. For example, take the above two combinations of different granularities as an example. Assume the combination of "each cell" and "each logical channel priority". At this time, the terminal device will obtain the network device's logical channel priority for each cell respectively. The configured CBR threshold value. Different logical channel priorities in different cells correspond to different configured CBR threshold values. For example, the CBR threshold configured with the first priority of the logical channel in cell #1 is A, and the CBR threshold configured with the first priority of the logical channel in cell #2 is B.

And, in one embodiment of the present disclosure, the above-mentioned CBR threshold value may be configured by the network device through a Radio Resource Control (Radio Resource Control, RRC) message and/or a System Information Block (System Information Blocks, SIB) message. . In another embodiment of the present disclosure, the above-mentioned CBR threshold value may also be preconfigured.

Step 202: Perform CBR measurement on the resource pool configured on the activated bandwidth part (BWP) of the carrier of the terminal device to obtain a CBR measurement result.

In one embodiment of the present disclosure, a carrier may be configured with at least one BWP, and there is only one activated BWP on each carrier. At the same time, each BWP supports the configuration of at least one resource pool.

And, in one embodiment of the present disclosure, the terminal device can perform CBR measurement on the resource pool configured on the activated BWP of all carriers.

And, in one embodiment of the present disclosure, the CBR measurement result of the resource pool is specifically a CBR measurement value, which can be used to reflect the occupation status of a sub-channel in a resource pool. Among them, when the CBR measurement result is lower, it means that there are fewer sub-channels used to transmit data in the resource pool, and the possibility of conflict when selecting and/or reselecting the resource pool to transmit data is lower. When the CBR measurement result is lower, If it is high, it means that the more sub-channels used to transmit data in the resource pool, the higher the possibility of conflicts when selecting and/or re-selecting the resource pool to transmit data.

Step 203: Determine at least one candidate carrier to be selected and/or reselected and at least one candidate resource pool corresponding to the candidate carrier based on the CBR threshold value and the CBR measurement result.

In one embodiment of the present disclosure, step 203 may be executed when resource selection (or primary selection) and/or reselection is triggered, such as when a Hybrid Automatic Retransmission request response (Hybrid Automatic Retransmission) is triggered. Request, HARQ) process triggers resource selection (or primary selection) and/or reselection, step 203 is executed.

And, in one embodiment of the present disclosure, when performing step 203, at least one candidate resource pool for selection and/or reselection may be determined based on the CBR threshold value and the CBR measurement result, and then the candidate resource pool The corresponding carrier is determined as a candidate carrier. Alternatively, in an embodiment of the present disclosure, at least one candidate carrier for selection and/or reselection may be determined based on the CBR threshold value and the CBR measurement result, and then at least one candidate carrier is determined from the resource pool corresponding to the candidate carrier. A pool of candidate resources. The specific implementation of this part will be introduced in detail in subsequent embodiments.

To sum up, in the resource reselection method provided by the embodiments of the present disclosure, the terminal device will obtain the channel occupancy CBR threshold value configured by the network device for resource selection and/or reselection; and will perform the resource reselection on the terminal device. The resource pool configured on the activated BWP of the carrier performs CBR measurement to obtain the CBR measurement result; among which, the BWP supports the configuration of at least one resource pool; after that, at least one selection and/or reselection will be determined based on the CBR threshold value and the CBR measurement result. The candidate carrier and at least one candidate resource pool corresponding to the candidate carrier. Among them, one BWP in this disclosure supports the configuration of at least one resource pool, that is, one carrier supports the configuration of multiple resource pools. From this, it can be seen that this disclosure provides resources based on "one carrier supports the configuration of multiple resource pools" Reselection method, so that the method of the present disclosure can be applied to the situation of "one carrier supports the configuration of multiple resource pools", that is, the method of the present disclosure can be applied to the terminal equipment of the NR sidelink system to select carriers and/or Reselect.

Figure 3 is a schematic flowchart of a resource reselection method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 3, the resource reselection method may include the following steps:

Step 301: Determine at least one candidate resource pool based on the CBR threshold and CBR measurement results.

In one embodiment of the present disclosure, at least one candidate resource pool may be determined by performing the following steps:

Step a: Determine the resource pool whose CBR measurement result is lower than or equal to the CBR threshold as the candidate resource pool.

Among them, in an embodiment of the present disclosure, when the CBR measurement result of a certain resource pool is lower than or equal to the CBR threshold value, it means that the CBR measurement result of the resource pool is low, that is, the resource pool There are fewer sub-channels in the resource pool used to transmit data. At this time, the possibility of conflict when selecting and/or re-selecting this resource pool to transmit data is also low. Based on this, the resource pool can be determined as a candidate resource pool, so that when a candidate resource pool is subsequently determined from the candidate resource pool, it can be ensured that the determined candidate resource pool has a low probability of conflict when transmitting data, thereby ensuring Stability of data transfer after resource selection and/or reselection.

And, it should be noted that, in an embodiment of the present disclosure, if the configuration method of the CBR threshold value is different, the execution method of step a will also be different. Specifically, in one embodiment of the present disclosure, if the CBR threshold is configured for each cell or for each BWP or for each frequency or for the terminal device, then in step a, the CBR measurement result is specifically set to be less than or The resource pool equal to the corresponding CBR threshold value is determined as the candidate resource pool.

For example, assuming that the CBR threshold is set for each cell, when the CBR measurement result of a certain resource pool is less than or equal to the CBR threshold corresponding to the cell to which the resource pool belongs, the resource pool is determined to be a candidate resource. pool; or, assuming that the CBR threshold is set for each BWP, when the CBR measurement result of a certain resource pool is less than or equal to the CBR threshold corresponding to the BWP to which the resource pool belongs, the resource pool is determined to be candidate. Resource pool.

In another embodiment of the present disclosure, if the CBR threshold value is configured separately for each logical channel priority, in step a, the CBR measurement result is specifically set to be less than or equal to each carrier that has data to be transmitted and triggered The resource pool with the CBR threshold value corresponding to the priority of the logical channel selected and/or carrier reselected is determined as the candidate resource pool.

For example, it is assumed that the CBR threshold value is configured separately for each logical channel priority, where it is assumed that the logical channel priority includes the first priority, the second priority, and the third priority, where for the first priority, The CBR thresholds configured for the second priority and the third priority are respectively: CBR threshold #1, CBR threshold #2, and CBR threshold #3. At this time, if logical channel #1 and logical channel #2 trigger carrier reselection, at the same time, logical channel #1, logical channel #2, and logical channel #3 all have data to be transmitted. Among them, the priority of logical channel #1 is The first priority level, the priority level of logical channel #2 is the second priority level, and the priority level of logical channel #3 is the third priority level. Then only when the CBR measurement result of the resource pool is less than or equal to the CBR threshold value #1 corresponding to the first priority of the logical channel #1 that has data to be transmitted and triggered carrier selection and/or reselection, and at the same time, is less than or The resource pool is determined as a candidate resource pool only when it is equal to the CBR threshold value #2 corresponding to the second priority of logical channel #2 that has data to be transmitted and has triggered carrier selection and/or reselection.

In another embodiment of the present disclosure, if the CBR threshold value is configured separately for each cell and each logical channel priority, then step a specifically sets the CBR measurement result to be less than or equal to the resource pool corresponding to the measurement result. The resource pool with the CBR threshold value corresponding to the priority of each logical channel in the cell to which data is to be transmitted and triggers carrier selection and/or carrier reselection is determined as the candidate resource pool.

For example, it is assumed that the CBR threshold value is configured for each cell and each logical channel priority, where it is assumed that the logical channel priority includes the first priority, the second priority, and the third priority, where, for cell # The CBR threshold values configured for the first priority of the logical channel, the second priority of the logical channel, and the third priority of the logical channel in 1 are respectively: CBR threshold value #1, CBR threshold value #2, CBR gate Limit #3, the CBR thresholds configured for the first priority of the logical channel, the second priority of the logical channel, and the third priority of the logical channel in cell #2 are respectively: CBR threshold #4, CBR Threshold #5, CBR threshold #6. At this time, if logical channel #1 and logical channel #2 in cell #2 trigger carrier reselection, and at the same time, logical channel #1, logical channel #2, and logical channel #3 in cell #2 all have data to be transmitted, Among them, the priority of logical channel #1 is the first priority, the priority of logical channel #2 is the second priority, and the priority of logical channel #3 is the third priority. At this time, the resource pool belonging to cell #2 can only be accessed when its CBR measurement result is less than or equal to the first priority of logical channel #1 that has data to be transmitted in cell #2 and triggered carrier selection and/or reselection. CBR threshold value #4, and at the same time, it is also less than or equal to the CBR threshold value #5 corresponding to the second priority of logical channel #2 that has data to be transmitted in cell #2 and triggered carrier selection and/or reselection. , the resource pool is determined as a candidate resource pool.

Step b: Determine a first preset number of candidate resource pools from the candidate resource pools as candidate resource pools.

In one embodiment of the present disclosure, the method for determining the first preset value may include at least one of the following:

The first preset value is determined independently by the terminal device based on implementation;

The first preset value is configured by the network device (for example, the network device is configured through RRC messages and/or SIB messages);

The first preset value is preconfigured;

The first preset value is determined by the agreement.

And, in one embodiment of the present disclosure, the terminal device can randomly select a first preset value of candidate resource pools as candidate resource pools based on implementation from the candidate resource pools. Or, in another embodiment of the present disclosure, the terminal device can sort the selected resource pool based on the CBR measurement result, such as sorting the selected resource pool from high to low based on the CBR measurement result; or, based on the CBR measurement result, sort the selected resource pool from high to low. The candidate resource pools are sorted from low to high, and then a first preset number of candidate resource pools are determined from the sorted candidate resource pools as candidate resource pools, where the first preset number of candidate resource pools are It can be the first first preset value candidate resource pool with the lowest CBR measurement result among the sorted candidate resource pools; or the first preset value candidate resource pool can be the first preset value candidate resource pool among the sorted candidate resource pools. The first first preset value candidate resource pools with the highest CBR measurement results; alternatively, the first preset value candidate resource pools may be randomly selected by the terminal device from the sorted candidate resource pools.

Step 302: Determine a carrier corresponding to at least one candidate resource pool as a candidate carrier.

For example, in one embodiment of the present disclosure, it is assumed that the determined candidate resource pools include: candidate resource pool #1, candidate resource pool #2, and candidate resource pool #3, where candidate resource pool #1 and candidate resource pool #2 corresponds to carrier #A, and candidate resource pool #3 corresponds to carrier #B. Then carrier #A and carrier #B can be determined as candidate carriers.

As can be seen from the above content, the present disclosure provides a resource reselection method: when a carrier supports the configuration of multiple resource pools, at this time, if resource selection and/or reselection is to be performed, carrier selection and/or reselection is triggered. , you can first select a candidate resource pool, and then determine candidate carriers based on the candidate resource pool.

Figure 4 is a schematic flowchart of a resource reselection method provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Figure 4, the resource reselection method may include the following steps:

Step 401: Determine at least one candidate carrier based on the CBR threshold and CBR measurement results.

In one embodiment of the present disclosure, at least one candidate carrier may be determined by performing the following steps:

Step 1: Determine the resource pool whose CBR measurement result is lower than or equal to the CBR threshold as the candidate resource pool.

For detailed introduction to step 1, please refer to the above embodiment description.

Step 2: Sort each carrier based on the number of candidate resource pools included in each carrier.

In one embodiment of the present disclosure, each carrier may be sorted in ascending order based on the number of candidate resource pools included in each carrier. For example, there are 3 candidate resource pools included in carrier #A, 2 candidate resource pools included in carrier #B, and 1 candidate resource pool included in carrier #C. At this time, based on the candidate resource pools included in each carrier, The number of resource pools, after sorting each carrier in ascending order, is: carrier #C, carrier #B, carrier #A.

In another embodiment of the present disclosure, each carrier may be sorted in descending order based on the number of candidate resource pools included in each carrier. For example, there are 3 candidate resource pools included in carrier #A, 2 candidate resource pools included in carrier #B, and 1 candidate resource pool included in carrier #C. At this time, based on the candidate resource pools included in each carrier, The number of resource pools, after sorting each carrier in descending order, is: carrier #A, carrier #B, and carrier #C.

Step 3: Determine a second preset number of carriers from the sorted carriers as candidate carriers.

Wherein, in an embodiment of the present disclosure, the method for determining the second preset value may include at least one of the following:

The second preset value is determined independently by the terminal device based on implementation;

The second preset value is configured by the network device (for example, the network device is configured through RRC messages and/or SIB messages);

The second preset value is preconfigured;

The second default value is determined by the agreement.

And, in one embodiment of the present disclosure, the second preset number of carriers may be the first and second preset number of carriers that contain the smallest number of candidate resource pools among the sorted carriers; or, the second preset number of carriers may be the second preset number of carriers. The preset number of carriers may be the first and second preset number of carriers that contain the largest number of candidate resource pools among the sorted carriers; or the second preset number of carriers may be the terminal device selected from the sorted carriers. Based on random selection.

Step 402: Determine at least one candidate resource pool from the resource pool corresponding to at least one candidate carrier.

At least one candidate resource pool may be randomly selected based on implementation from the resource pool corresponding to at least one candidate carrier, or the first few resource pools with lower CBR measurement results among the resource pools corresponding to at least one candidate carrier may be determined as candidates. resource pool, or the first few resource pools with higher CBR measurement results among the resource pools corresponding to at least one candidate carrier may be determined as candidate resource pools.

As can be seen from the above content, the present disclosure provides a resource reselection method: when a carrier supports the configuration of multiple resource pools, at this time, if resource selection and/or reselection is to be performed, carrier selection and/or reselection is triggered. , candidate carriers can be selected first, and then candidate resource pools are determined based on the candidate carriers.

Figure 5 is a schematic flowchart of a resource reselection method provided by an embodiment of the present disclosure. The method is executed by a network device. As shown in Figure 5, the resource reselection method may include the following steps:

Step 501: Configure a CBR threshold for resource selection and/or reselection to the terminal device.

Among them, in one embodiment of the present disclosure, the method for the network device to configure the CBR threshold value to the terminal device may include at least one of the following:

Configuring the CBR threshold value corresponding to each cell to the terminal device;

Configuring the CBR threshold value corresponding to each BWP to the terminal device;

Configuring the CBR threshold value corresponding to each frequency to the terminal device;

Configuring the CBR threshold value corresponding to the terminal device to the terminal device; wherein the network device configures the corresponding CBR threshold value to the terminal device and other terminal devices respectively;

Configure the CBR threshold value corresponding to each logical channel priority to the terminal device.

For detailed introduction to this part, please refer to the above embodiment description.

Figure 6 is a schematic flowchart of a resource reselection method provided by an embodiment of the present disclosure. The method is executed by a network device. As shown in Figure 6, the resource reselection method may include the following steps:

Step 601: Configure a first preset value to the terminal device. The first preset value is used by the terminal device to determine a candidate resource pool.

The network device may configure the first preset value to the terminal device through an RRC message and/or a SIB message. Alternatively, the first preset value may also be preconfigured.

Figure 7 is a schematic flowchart of a resource reselection method provided by an embodiment of the present disclosure. The method is executed by a network device. As shown in Figure 7, the resource reselection method may include the following steps:

Step 701: Configure a second preset value to the terminal device. The second preset value is used by the terminal device to determine candidate carriers.

The network device may configure the second preset value to the terminal device through an RRC message and/or a SIB message. Alternatively, the second preset value may also be preconfigured.

Figure 8 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure. As shown in Figure 8, the device may include:

To sum up, in the communication device provided by the embodiment of the present disclosure, the terminal device will obtain the channel occupancy CBR threshold value configured by the network device for resource selection and/or reselection; and will perform the carrier configuration of the terminal device. Perform CBR measurement on the resource pool configured on the activated BWP to obtain the CBR measurement result; among which, BWP supports the configuration of at least one resource pool; after that, at least one candidate for selection and/or reselection will be determined based on the CBR threshold value and the CBR measurement result. The carrier and at least one candidate resource pool corresponding to the candidate carrier. Among them, one BWP in this disclosure supports the configuration of at least one resource pool, that is, one carrier supports the configuration of multiple resource pools. From this, it can be seen that this disclosure provides resources based on "one carrier supports the configuration of multiple resource pools" Reselection method, so that the method of the present disclosure can be applied to the situation of "one carrier supports the configuration of multiple resource pools", that is, the method of the present disclosure can be applied to the terminal equipment of the NR sidelink system to select carriers and/or Reselect.

Optionally, in an embodiment of the present disclosure, the transceiver module is also used for at least one of the following:

Obtain the CBR threshold configured by the network device for each cell;

Obtain the CBR threshold value configured by the network device for each BWP;

Obtain the CBR threshold value configured by the network device for each frequency;

Obtain the CBR threshold value configured by the network device for the terminal device; wherein the CBR threshold value corresponding to the terminal device and the CBR threshold value corresponding to other terminal devices are respectively configured by the network device;

Obtain the CBR threshold value respectively configured by the network device for each logical channel priority.

Optionally, in one embodiment of the present disclosure, the processing module is also used to:

Determine at least one candidate resource pool based on the CBR threshold and the CBR measurement result;

A carrier corresponding to the at least one candidate resource pool is determined as the candidate carrier.

Determine the resource pool whose CBR measurement result is lower than or equal to the CBR threshold value as the candidate resource pool;

Sort the candidate resource pools based on CBR measurement results;

Determine a first preset number of candidate resource pools from the sorted candidate resource pools as the candidate resource pools.

Optionally, in one embodiment of the present disclosure, the first preset value candidate resource pools are the first first preset value candidate resources with the lowest CBR measurement results in the sorted candidate resource pools. pool; or

The first preset value candidate resource pools are the first first preset value candidate resource pools with the highest CBR measurement results among the sorted candidate resource pools.

Determine at least one candidate carrier based on the CBR threshold and the CBR measurement result;

At least one candidate resource pool is determined from the resource pool corresponding to the at least one candidate carrier.

Sort each carrier based on the number of candidate resource pools included in each carrier;

Determine a second preset number of carriers from the sorted carriers as the candidate carriers.

Optionally, in an embodiment of the present disclosure, the second preset value carriers are the first second preset value carriers that contain the smallest number of candidate resource pools among the sorted carriers; or

The second preset value carriers are the first second preset value carriers that contain the largest number of candidate resource pools among the sorted carriers.

Optionally, in one embodiment of the present disclosure, the method for determining the first preset value or the second preset value includes at least one of the following:

The terminal device determines independently based on implementation;

configured by said network device;

preconfigured;

As stipulated in the agreement.

In response to the CBR threshold being configured for each cell or for each BWP or for each frequency or for the terminal device, determine the resource pool whose CBR measurement result is less than or equal to the corresponding CBR threshold as the resource pool. Describe the resource pool to be selected; or,

In response to the CBR threshold being configured separately for each logical channel priority, the CBR measurement result is less than or equal to the priority of each logical channel that has data to be transmitted and triggers carrier selection and/or carrier reselection. The resource pool corresponding to the CBR threshold value is determined as the candidate resource pool.

Figure 9 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure. As shown in Figure 9, the device may include:

A transceiver module configured to configure a CBR threshold value for resource selection and/or reselection to the terminal device, so that the terminal device determines the priority selection and/or reselection of the resource pool according to the CBR threshold value, or Prioritize and/or reselect carriers.

Optionally, in one embodiment of the present disclosure, the device is also used for:

Configuring a first preset value to the terminal device, the first preset value being used by the terminal device to determine a candidate resource pool; or,

A second preset value is configured to the terminal device, and the second preset value is used by the terminal device to determine a candidate carrier.

Please refer to FIG. 10 , which is a schematic structural diagram of a communication device 1000 provided by an embodiment of the present application. The communication device 1000 may be a network device, a terminal device, a chip, a chip system, or a processor that supports a network device to implement the above method, or a chip, a chip system, or a processor that supports a terminal device to implement the above method. Processor etc. The device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.

Communication device 1000 may include one or more processors 1001. The processor 1001 may be a general-purpose processor or a special-purpose processor, or the like. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data. The central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.

Optionally, the communication device 1000 may also include one or more memories 1002, on which a computer program 1004 may be stored. The processor 1001 executes the computer program 1004, so that the communication device 1000 performs the steps described in the above method embodiments. method. Optionally, data may also be stored in the memory 1002. The communication device 1000 and the memory 1002 can be provided separately or integrated together.

Optionally, the communication device 1000 may also include a transceiver 1005 and an antenna 1006. The transceiver 1005 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions. The transceiver 1005 may include a receiver and a transmitter. The receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function; the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.

Optionally, the communication device 1000 may also include one or more interface circuits 1007. The interface circuit 1007 is used to receive code instructions and transmit them to the processor 1001 . The processor 1001 executes the code instructions to cause the communication device 1000 to perform the method described in the above method embodiment.

In one implementation, the processor 1001 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together. The above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.

In one implementation, the processor 1001 may store a computer program 1003, and the computer program 1003 runs on the processor 1001, causing the communication device 1000 to perform the method described in the above method embodiment. The computer program 1003 may be solidified in the processor 1001, in which case the processor 1001 may be implemented by hardware.

In one implementation, the communication device 1000 may include a circuit, and the circuit may implement the functions of sending or receiving or communicating in the foregoing method embodiments. The processor and transceiver described in this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board (PCB), electronic equipment, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication device described in the above embodiments may be a network device or a terminal device, but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited by FIG. 10 . The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) Independent integrated circuit IC, or chip, or chip system or subsystem;

(2) A collection of one or more ICs. Optionally, the IC collection may also include storage components for storing data and computer programs;

(3)ASIC, such as modem;

(4) Modules that can be embedded in other devices;

(5) Receivers, terminal equipment, intelligent terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network equipment, cloud equipment, artificial intelligence equipment, etc.;

(6) Others, etc.

For the case where the communication device may be a chip or a chip system, refer to the schematic structural diagram of the chip shown in FIG. 11 . The chip shown in Figure 11 includes a processor 1101 and an interface 1102. The number of processors 1101 may be one or more, and the number of interfaces 1102 may be multiple.

Optionally, the chip also includes a memory 1103, which is used to store necessary computer programs and data.

Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of this application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and overall system design requirements. Those skilled in the art can use various methods to implement the described functions for each specific application, but such implementation should not be understood as exceeding the protection scope of the embodiments of the present application.

This application also provides a readable storage medium on which instructions are stored. When the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.

This application also provides a computer program product, which when executed by a computer implements the functions of any of the above method embodiments.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated. The usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.

Persons of ordinary skill in the art can understand that the first, second, and other numerical numbers involved in this application are only for convenience of description and are not used to limit the scope of the embodiments of this application and also indicate the order.

At least one in this application can also be described as one or more, and the plurality can be two, three, four or more, which is not limited by this application. In the embodiment of this application, for a technical feature, the technical feature is distinguished by "first", "second", "third", "A", "B", "C" and "D", etc. The technical features described in "first", "second", "third", "A", "B", "C" and "D" are in no particular order or order.

The corresponding relationships shown in each table in this application can be configured or predefined. The values of the information in each table are only examples and can be configured as other values, which are not limited by this application. When configuring the correspondence between information and each parameter, it is not necessarily required to configure all the correspondences shown in each table. For example, in the table in this application, the corresponding relationships shown in some rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables. wait.

Predefinition in this application can be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A resource reselection method, characterized in that it is executed by a terminal device and includes:

Obtain the channel occupancy CBR threshold configured by the network device for resource selection and/or reselection;

Perform CBR measurement on the resource pool configured on the BWP of the activated bandwidth part of the carrier of the terminal device to obtain a CBR measurement result; wherein, the BWP supports the configuration of at least one resource pool;

Based on the CBR threshold and the CBR measurement result, at least one candidate carrier to be selected and/or reselected and at least one candidate resource pool corresponding to the candidate carrier are determined.
The method of claim 1, wherein the obtaining the CBR threshold configured by the network device for resource selection and/or reselection includes at least one of the following:

Obtain the CBR threshold configured by the network device for each cell;

Obtain the CBR threshold value configured by the network device for each BWP;

Obtain the CBR threshold value configured by the network device for each frequency;

Obtain the CBR threshold value configured by the network device for the terminal device; wherein the CBR threshold value corresponding to the terminal device and the CBR threshold value corresponding to other terminal devices are respectively configured by the network device;

Obtain the CBR threshold value respectively configured by the network device for each logical channel priority.
The method according to claim 1 or 2, characterized in that, based on the CBR threshold value and the CBR measurement result, at least one candidate carrier to be selected and/or re-selected and the candidate carrier corresponding to the candidate carrier are determined. At least one candidate resource pool, including:

Determine at least one candidate resource pool based on the CBR threshold and the CBR measurement result;

A carrier corresponding to the at least one candidate resource pool is determined as the candidate carrier.
The method of claim 3, wherein determining at least one candidate resource pool based on the CBR threshold and the CBR measurement result includes:

Determine the resource pool whose CBR measurement result is lower than or equal to the CBR threshold value as the candidate resource pool;

Sort the candidate resource pools based on CBR measurement results;

Determine a first preset number of candidate resource pools from the sorted candidate resource pools as the candidate resource pools.
The method of claim 4, wherein the first preset value candidate resource pools are the first first preset value candidate resource pools with the lowest CBR measurement results among the sorted candidate resource pools. ;or

The first preset value candidate resource pools are the first first preset value candidate resource pools with the highest CBR measurement results among the sorted candidate resource pools.
The method according to claim 1 or 2, characterized in that, based on the CBR threshold value and the CBR measurement result, at least one candidate carrier to be selected and/or re-selected and the candidate carrier corresponding to the candidate carrier are determined. At least one candidate resource pool, including:

Determine at least one candidate carrier based on the CBR threshold and the CBR measurement result;

At least one candidate resource pool is determined from the resource pool corresponding to the at least one candidate carrier.
The method of claim 6, wherein determining at least one candidate carrier based on the CBR threshold and the CBR measurement result includes:

Determine the resource pool whose CBR measurement result is lower than or equal to the CBR threshold value as the candidate resource pool;

Sort each carrier based on the number of candidate resource pools included in each carrier;

Determine a second preset number of carriers from the sorted carriers as the candidate carriers.
The method of claim 7, wherein the second preset value carriers are the first second preset value carriers among the sorted carriers that contain the smallest number of candidate resource pools; or

The second preset value carriers are the first second preset value carriers that contain the largest number of candidate resource pools among the sorted carriers.
The method of claim 4 or 7, wherein the method for determining the first preset value or the second preset value includes at least one of the following:

The terminal device determines independently based on implementation;

configured by said network device;

preconfigured;

As stipulated in the agreement.
The method of claim 4 or 7, wherein determining a resource pool whose CBR measurement result is lower than or equal to the CBR threshold as a candidate resource pool includes:

In response to the CBR threshold being configured for each cell or for each BWP or for each frequency or for the terminal device, determine the resource pool whose CBR measurement result is less than or equal to the corresponding CBR threshold as the resource pool. Describe the resource pool to be selected; or,

In response to the CBR threshold being configured separately for each logical channel priority, the CBR measurement result is less than or equal to the priority of each logical channel that has data to be transmitted and triggers carrier selection and/or carrier reselection. The resource pool corresponding to the CBR threshold value is determined as the candidate resource pool.
A resource reselection method, characterized in that it is executed by a network device and includes:

Configuring a terminal device with a CBR threshold value for resource selection and/or reselection, so that the terminal device determines priority selection and/or reselection of a resource pool or priority selection and/or reselection according to the CBR threshold value. Reselect carrier.
The method of claim 11, wherein configuring a CBR threshold value for resource selection and/or reselection to the terminal device includes at least one of the following:

Configuring the CBR threshold value corresponding to each cell to the terminal device;

Configuring the CBR threshold value corresponding to each BWP to the terminal device;

Configuring the CBR threshold value corresponding to each frequency to the terminal device;

Configuring the CBR threshold value corresponding to the terminal device to the terminal device; wherein the network device configures the corresponding CBR threshold value to the terminal device and other terminal devices respectively;

Configure the CBR threshold value corresponding to each logical channel priority to the terminal device.
The method of claim 11, further comprising:

Configuring a first preset value to the terminal device, the first preset value being used by the terminal device to determine a candidate resource pool; or,

Configuring a second preset value to the terminal device, the second preset value is used by the terminal device to determine candidate carriers.
A communication device, characterized in that the device is configured in a terminal device, including:

The transceiver module is used to obtain the CBR threshold value configured by the network device for resource selection and/or reselection;

A processing module configured to perform CBR measurement on the resource pool configured on the activated bandwidth part BWP of the carrier of the terminal device to obtain a CBR measurement result; wherein the BWP supports the configuration of at least one resource pool;

The processing module is configured to determine, based on the CBR threshold value and the CBR measurement result, at least one candidate carrier to be selected and/or reselected and at least one candidate resource pool corresponding to the candidate carrier.
A communication device, characterized in that the device is configured in a network device, including:

A transceiver module configured to configure a CBR threshold value for resource selection and/or reselection to the terminal device, so that the terminal device determines the priority selection and/or reselection of the resource pool according to the CBR threshold value, or Prioritize and/or reselect carriers.
A communication device, characterized in that the device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the device executes: The method of any one of claims 1 to 10, or the processor executes a computer program stored in the memory, so that the device performs the method of claims 11 to 13.
A communication device, characterized by comprising: a processor and an interface circuit, wherein

The interface circuit is used to receive code instructions and transmit them to the processor;

The processor is configured to run the code instructions to perform the method as claimed in any one of claims 1 to 10, or to run the code instructions to perform the method as claimed in claims 11 to 13.
A computer-readable storage medium for storing instructions, which when executed, enable the method according to any one of claims 1 to 10 to be implemented, or when the instructions are executed, enable The method as claimed in claims 11 to 13 is implemented.