CN113055936B

CN113055936B - Resource selection processing method and terminal

Info

Publication number: CN113055936B
Application number: CN201911374790.9A
Authority: CN
Inventors: 沈天珺; 王亚坤; 赵丽; 赵锐
Original assignee: CICTCI Technology Co Ltd
Current assignee: Datang Gaohong Zhilian Technology Chongqing Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2023-02-21
Anticipated expiration: 2039-12-27
Also published as: CN113055936A

Abstract

The embodiment of the invention provides a resource selection processing method and a terminal, which solve the problems of poor system performance and complex resource selection process processing caused by resource selection processing of services with different scenes and requirements. The method of the invention comprises the following steps: and under the condition that the service triggering the resource selection is the target service, adjusting the proportion of the remaining candidate resources excluded by the resources based on a preset proportion. The method of the embodiment of the invention considers the requirements of different scenes and services, reasonably sets the available resource proportion by adjusting the proportion of the remaining candidate resources excluded by the resources, can reduce the processing complexity of the resource selection process and improve the system performance.

Description

Resource selection processing method and terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a resource selection processing method and a terminal.

Background

In the current field of the application of the car networking V2X, services thereof have various types. For example, basic road security applications have the characteristics of periodicity, predictable service packet size, and the like; for example, some event-triggered services have characteristics of aperiodicity, unpredictable size of service packets, and the like, and different types of services may have different requirements, for example, some services may have different requirements for priority, delay, and retransmission times, and may have different congestion degrees in some scenarios.

The existing resource selection mechanism only considers the periodic service of basic road security application, does not consider the aperiodic service and different scenes and requirements of the service, and if the existing resource selection mechanism is still adopted, the problems of poor system performance and complex resource selection process processing can be caused.

Disclosure of Invention

The invention aims to provide a resource selection processing method and a terminal, which are used for solving the problems of poor system performance and complex resource selection process processing caused by resource selection processing of services with different scenes and requirements.

In order to achieve the above object, an embodiment of the present invention provides a resource selection processing method, applied to a terminal, including:

and under the condition that the service triggering the resource selection is the target service, adjusting the proportion of the remaining candidate resources excluded by the resources based on a preset proportion.

Wherein the target service comprises one of the following services:

a service in a high congestion scenario;

low latency services;

non-periodic service;

traffic with high retransmission times is required.

After the remaining resource candidate proportion of the resource exclusion is adjusted based on the preset proportion, the method further comprises the following steps:

stopping resource elimination under the condition that the proportion of the remaining candidate resources in the current resource selection window exceeds the adjusted target proportion;

and selecting candidate resources from the remaining candidate resources in a target resource selection interval, reporting the selected candidate resources to a high layer for resource selection, wherein the target resource selection interval is at least part of the resource selection interval of the resource selection window.

The target service is a service in a high congestion scene or a low delay service;

the adjusting the ratio of the remaining candidate resources excluded from the resources based on the preset ratio includes:

and reducing the proportion of the remaining candidate resources excluding the resources from the preset proportion to a first target proportion.

The target service is a service in a high congestion scene;

the reducing the ratio of the remaining candidate resources excluded from the resources from the preset ratio to a first target ratio includes:

reducing the remaining candidate resource proportion of the resource exclusion from the preset proportion to a first target proportion by one of the following methods:

pre-configuring;

configuring a high layer;

a first preset correspondence between the channel busy rate CBR and the remaining candidate resource proportion for resource exclusion.

Wherein, the target service is a low-delay service;

pre-configuring;

configuring a high layer;

and the first weighting coefficient X of the preset proportion is more than 0 and less than 1.

Before the remaining candidate resource proportion excluded from the resources is reduced from the preset proportion to the first target proportion by the first weighting coefficient X of the preset proportion, the method further includes:

obtaining the first weighting factor X by one of:

pre-configuring;

configuring a high layer;

a second preset corresponding relation between the ratio of the length of the low-delay resource selection window to the length of the resource selection window for basic road safety application and the weighting coefficient;

a third preset corresponding relation between the congestion proportion and the weighting coefficient;

and a fourth preset corresponding relation between the proportion of the resources to be sent in all the resources in the resource selection window and the weighting coefficient.

The target service is an aperiodic service; the resource selection interval of the resource selection window is [ n + T1, n + T2], wherein n is the moment when the terminal triggers resource selection;

the adjusting the ratio of the remaining candidate resources excluded by the resources based on the preset ratio includes:

determining the preset proportion as the proportion of the remaining candidate resources in a first resource selection interval in the resource selection window through pre-configuration or high-level configuration, wherein the first resource selection interval is (n + T3, n + T2), T3 is a hybrid automatic repeat request delay budget HARQ delay budget, and T1 is more than T3 and less than T2; or,

and according to a second weighting coefficient Y of the preset proportion S and a third weighting coefficient Z of the preset proportion S, respectively performing weighting processing on the remaining candidate resource proportion in a second resource selection interval in the resource selection window and the remaining candidate resource proportion in the first resource selection interval to obtain that the remaining candidate resource proportion in the second resource selection interval is S x Y, the remaining candidate resource proportion in the first resource selection interval is S x Z, wherein the second resource selection interval is [ n + T1, n + T3], Y is more than 0 and less than 1, and Z is not less than 1-Y.

Wherein, according to the second weighting coefficient Y of the preset ratio S and the third weighting coefficient Z of the preset ratio S, the method further includes weighting the remaining candidate resource ratio in the second resource selection interval in the resource selection window and the remaining candidate resource ratio in the first resource selection interval respectively to obtain that the remaining candidate resource ratio in the second resource selection interval is S × Y, and before the remaining candidate resource ratio in the first resource selection interval is S × Z:

obtaining the second weighting factor Y by one of:

pre-configuring;

configuring a high layer;

and a fifth preset corresponding relation between the ratio of the interval length of the second resource selection interval to the total resource selection interval length of the resource selection window and the weighting coefficient.

Wherein, in case that the preset proportion is determined as a proportion of remaining candidate resources in a first resource selection interval in the resource selection window through pre-configuration or high-level configuration,

the stopping resource elimination when the ratio of the remaining candidate resources in the current resource selection window exceeds the adjusted target ratio includes:

stopping resource exclusion when the ratio of the remaining candidate resources in the current first resource selection interval exceeds the preset ratio;

selecting candidate resources from the remaining candidate resources in the target resource selection interval and reporting the selected candidate resources to a high layer for resource selection, wherein the resource selection comprises the following steps:

selecting candidate resources from the remaining candidate resources in all resource selection intervals of the resource selection window, and reporting the selected candidate resources to a high layer for resource selection; or,

and selecting candidate resources from the remaining candidate resources in the first resource selection interval, and reporting the selected candidate resources to a high layer for resource selection.

Wherein, in the case that the remaining candidate resource proportion in the second resource selection interval in the resource selection window and the remaining candidate resource proportion in the first resource selection interval are respectively weighted according to the second weighting coefficient Y of the preset proportion S and the third weighting coefficient Z of the preset proportion S, the remaining candidate resource proportion in the second resource selection interval is obtained as S x Y, and the remaining candidate resource proportion in the first resource selection interval is obtained as S x Z,

stopping resource exclusion when the proportion of the remaining candidate resources in the second resource selection interval exceeds S x Y and the proportion of the remaining candidate resources in the first resource selection interval exceeds S x Z;

or,

stopping resource exclusion when at least one of the remaining candidate resource proportion in the second resource selection interval and the remaining candidate resource proportion in the first resource selection interval exceeds the preset proportion S;

and selecting candidate resources from the remaining candidate resources in a target resource selection interval with a remaining candidate resource ratio exceeding the preset ratio S, and reporting the selected candidate resources to a high layer for resource selection, wherein the target resource selection interval is at least one of the first resource selection interval and the second resource selection interval.

The target service is a service requiring high retransmission times;

before adjusting the remaining candidate resource proportion for resource exclusion based on the preset proportion, the method further includes:

acquiring the resource retransmission times of the target service based on a pre-configured or physical direct link control channel (PSCCH);

if the resource retransmission times are larger than the retransmission times of the basic road safety application, acquiring a target sending resource random selection number through pre-configuration or high-level configuration, wherein the target sending resource random selection number is a lower limit of different combination numbers which can be selected from the remaining candidate resources after the resource elimination and meet the resource retransmission times;

and under the condition that the number of different combinations which can be selected from the remaining candidate resources after the resource exclusion and meet the resource retransmission times does not exceed the target sending resource random selection number, increasing the proportion of the remaining candidate resources after the resource exclusion from the preset proportion to a second target proportion so as to enable the number of different combinations which can be selected from the remaining candidate resources after the resource exclusion by the terminal and meet the resource retransmission times to exceed the target sending resource random selection number.

The target service is a service in a high congestion scene, a low delay service or a service requiring high retransmission times;

and selecting candidate resources from the remaining candidate resources in all resource selection intervals of the resource selection window, and reporting the selected candidate resources to a high layer for resource selection.

After the remaining resource candidate proportion of the resource exclusion is adjusted based on the preset proportion, the method further comprises the following steps: in the case that the remaining candidate resource proportion in the current resource selection window does not exceed the adjusted target proportion, performing one of the following steps:

giving up the transmission and performing resource reselection;

raising a Reference Signal Received Power (RSRP) threshold according to a preset mode, and repeating a resource exclusion process based on the raised RSRP threshold until the proportion of the remaining candidate resources in the resource selection window exceeds the target proportion;

the method comprises the steps that when a Reference Signal Receiving Power (RSRP) threshold is lifted according to a preset mode, and a resource elimination process is repeated based on the lifted RSRP threshold until the RSRP threshold cannot be lifted continuously according to the preset mode, the current sending is abandoned, and resource reselection is carried out;

under the condition that the priority of the target service is high priority, terminal resources with low priority are seized;

and under the condition that the priority of the target service is low, giving up the transmission and reselecting the resources.

Wherein the preset mode comprises at least one of the following modes:

a preset lifting step length of the RSRP threshold;

a preset maximum value of the RSRP threshold;

and presetting the lifting times of the RSRP threshold.

In order to achieve the above object, an embodiment of the present invention further provides a terminal, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; the processor is used for reading the program in the memory and executing the following processes:

Wherein the target service comprises one of the following services:

a service in a high congestion scenario;

low latency services;

non-periodic service;

traffic with high retransmission times is required.

Wherein the processor is further configured to:

The target service is a service in a high congestion scene or a low delay service; the processor is further configured to:

and reducing the proportion of the remaining candidate resources excluding the resources to a first target proportion from the preset proportion.

The target service is a service in a high congestion scene; the processor is further configured to:

pre-configuring;

configuring a high layer;

The target service is a low-delay service; the processor is further configured to:

reducing the ratio of the remaining candidate resources excluded from the resources to the first target ratio from the preset ratio by one of the following methods:

pre-configuring;

configuring a high layer;

Wherein the processor is further configured to:

obtaining the first weighting factor X by one of:

pre-configuring;

configuring a high layer;

a third preset corresponding relation between the congestion ratio and the weighting coefficient;

The target service is an aperiodic service; the resource selection interval of the resource selection window is [ n + T1, n + T2], wherein n is the moment when the terminal triggers resource selection; the processor is further configured to:

Wherein the processor is further configured to:

obtaining the second weighting factor Y by one of the following ways:

pre-configuring;

configuring a high layer;

Wherein the processor is further configured to:

in case that the preset ratio is determined as a ratio of remaining candidate resources in a first resource selection interval in the resource selection window through pre-configuration or high-level configuration,

Wherein the processor is further configured to:

respectively weighting the remaining candidate resource proportion in the second resource selection interval in the resource selection window and the remaining candidate resource proportion in the first resource selection interval according to the second weighting coefficient Y of the preset proportion S and the third weighting coefficient Z of the preset proportion S to obtain the remaining candidate resource proportion in the second resource selection interval as SxY and the remaining candidate resource proportion in the first resource selection interval as SxZ,

stopping resource exclusion when the proportion of the remaining candidate resources in the current second resource selection interval exceeds S x Y and the proportion of the remaining candidate resources in the current first resource selection interval exceeds S x Z;

or,

The target service is a service requiring high retransmission times; the processor is further configured to:

and under the condition that the number of different combinations which can be selected from the remaining candidate resources after the resource exclusion and meet the resource retransmission times does not exceed the target sending resource random selection number, increasing the proportion of the remaining candidate resources after the resource exclusion from the preset proportion to a second target proportion so that the number of different combinations which can be selected from the remaining candidate resources after the resource exclusion and meet the resource retransmission times by the terminal exceeds the target sending resource random selection number.

The target service is a service in a high congestion scene, a low delay service or a service requiring high retransmission times; the processor is further configured to:

Wherein the processor is further configured to:

in the case that the remaining candidate resource proportion in the current resource selection window does not exceed the adjusted target proportion, performing one of the following processes:

giving up the transmission and performing resource reselection;

the method comprises the steps that when a reference signal receiving power RSRP threshold is lifted according to a preset mode, and a resource elimination process is repeated based on the lifted RSRP threshold until the RSRP threshold cannot be lifted continuously according to the preset mode, the sending is abandoned, and resource reselection is carried out;

Wherein the preset mode comprises at least one of the following modes:

the preset lifting step length of the RSRP threshold;

a preset maximum value of the RSRP threshold;

and presetting the lifting times of the RSRP threshold.

In order to achieve the above object, an embodiment of the present invention further provides a terminal, including:

and the first processing module is used for adjusting the proportion of the remaining candidate resources excluded by the resources based on a preset proportion under the condition that the service for triggering the resource selection is a target service.

In order to achieve the above object, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the resource selection processing method as described above.

The technical scheme of the invention at least has the following beneficial effects:

in the technical scheme of the embodiment of the invention, under the condition that the service triggering resource selection is the target service, the ratio of the remaining candidate resources excluded by the resources is adjusted based on the preset ratio, so that the ratio of the available resources is reasonably set by adjusting the ratio of the remaining candidate resources excluded by the resources in consideration of the requirements of different scenes and services, the processing complexity of the resource selection process can be reduced, and the system performance is improved.

Drawings

FIG. 1 is a schematic flow chart illustrating a resource selection processing method according to an embodiment of the present invention;

fig. 2 is a schematic diagram of remaining candidate resources after the method of the present invention is applied to the resource exclusion of a service in a high congestion scenario;

FIG. 3 is a schematic diagram of remaining candidate resources after the resource exclusion of the low latency service according to the method of the present invention;

FIG. 4 is a schematic diagram of remaining candidate resources after the resource exclusion of the aperiodic service in the present invention;

fig. 5 is a schematic diagram of the remaining candidate resources before the ratio of the remaining candidate resources to be excluded from the resources of the service requiring the high retransmission times is increased;

FIG. 6 is a schematic diagram of the remaining candidate resources after the method of the present invention is applied to the resource elimination of the service requiring high retransmission times and the ratio of the remaining candidate resources is increased;

FIG. 7 is a resource diagram illustrating resource selection of remaining candidate resources after resource exclusion for a service requiring high retransmission times according to the method of the present invention;

fig. 8 is a block diagram of a terminal according to an embodiment of the present invention;

fig. 9 is a block diagram of a terminal according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic flow chart of a resource selection processing method provided in an embodiment of the present invention, and is applied to a terminal.

Here, in order to facilitate understanding of the method of the embodiment of the present invention, the following briefly describes an existing resource selection process.

Firstly, if a high-level request for triggering resource selection is received on a subframe n, a terminal UE (user equipment) needs to perform resource exclusion on all single subframe candidate resource sets in a resource selection window of a preset time interval; then, a resource set sent by a PSSCH (Physical Sidelink Shared Channel) is selected and determined from the remaining candidate resource sets (available resources) after the resource exclusion, and the resource set is reported to a high layer. Finally, the high layer provides the number of sub-channels for psch transmission, the time interval for resource reservation, the transmission priority in SCI (Sidelink Control Information), and the number of sub-frames of a time-frequency resource set on multiple psch transmission opportunities.

Specifically, in the resource exclusion process, the UE excludes the single subframe candidate resource set meeting the following conditions from all the single subframe candidate resource sets:

the method comprises the steps that a subframe and similar subframes are not monitored in a preset monitoring window before a subframe n and resources in a resource selection window collide after a plurality of periods;

receiving an SCI, wherein a resource reservation field and a priority field in the received SCI indicate the next resource reservation and priority;

the PSSCH-RSRP (Reference Signal Received Power) measured according to the Received SCI is higher than a PSSCH-RSRP threshold T determined according to the receiving and sending priorities;

one SCI is received and the transmission resource indicated by the "resource reservation" field in the received SCI is collided with the resource within the resource selection window after several SPS (Semi-Persistent Scheduling) periods.

It should be noted that the preset listening window is composed of a preset number of consecutive listening subframes, and the UE does not listen to the subframe that is sent by itself and the subframe that does not belong to the resource pool in the listening window. The UE performs receiving and sending priority to determine the psch-RSRP threshold according to the decoding of the psch and RSSI (Received Signal Strength Indication) measurement on the monitored subframe, and the above resource exclusion process.

In addition, for the remaining candidate resource set, the UE may move the single-subframe candidate resource with the smallest measurement value to the remaining candidate resource set by the linear average (i.e., the measurement value) of the subchannel RSSI measurements on the partial subframes monitored in the monitoring window. This step should be repeated until the ratio of the remaining candidate resources to all candidate resources in the resource selection window reaches the preset ratio.

The following is a detailed description of the implementation of the method of the embodiments of the present invention.

Step 101, under the condition that the service triggering the resource selection is the target service, based on the preset proportion, the proportion of the remaining candidate resources excluded by the resources is adjusted.

In this step, the preset proportion is a proportion of remaining candidate resources excluded by resources corresponding to the preset periodic service. For example, through pre-configuration or upper layer configuration, the terminal reuses the remaining candidate resource proportion excluded by the resource corresponding to the existing LTE (Long Term Evolution) periodic service.

Here, the target service is a service in a scene other than the preset periodic service.

Here, the ratio of the remaining candidate resources for resource exclusion specifically refers to that the terminal triggers resource selection, and after resource exclusion is performed, the remaining candidate resources in the resource selection window need to occupy the ratio of the total candidate resources in the resource selection window, so that the terminal can complete the resource selection.

According to the resource selection processing method provided by the embodiment of the invention, under the condition that the service triggering resource selection is the target service, the ratio of the remaining candidate resources excluded by the resources is adjusted based on the preset ratio, so that the ratio of the available resources is reasonably set by adjusting the ratio of the remaining candidate resources excluded by the resources in consideration of the requirements of different scenes and services, the processing complexity in the resource selection process can be reduced, and the system performance is improved.

Optionally, the target service comprises one of the following services:

a service in a high congestion scenario;

low latency services;

non-periodic service;

traffic with high retransmission times is required.

Here, the terminal obtains a CBR (Channel Busy Ratio) through a preset congestion measurement mechanism, and determines that a target service for triggering resource selection is a service in a high congestion scenario when the CBR is greater than or equal to a preset threshold. For example, the terminal reuses a congestion measurement mechanism of the existing LTE-V2X (vehicle to internet everything), obtains a CBR, and determines that a target service for triggering resource selection is a service in a high congestion scenario when the CBR is greater than or equal to 82%.

The low-delay service is a preset low-delay service and can meet the requirement of preset delay. That is, the service with the transmission delay less than the preset delay threshold is the low-delay service.

And the service requiring the high retransmission times is a service with the retransmission times larger than the preset retransmission times.

As an optional implementation manner, after step 101, the method of the present invention may further include:

before this step is performed, the terminal performs resource exclusion based on the adjusted remaining candidate resource ratio for resource exclusion. For a specific resource exclusion process, reference may be made to the description of the resource exclusion part in the foregoing embodiments, and details are not described here.

In this step, under the condition that the above condition is satisfied, that is, under the condition that the remaining candidate resource proportion in the current resource selection window exceeds the adjusted target proportion, the resource elimination may be stopped.

Optionally, the target service is a service in a high congestion scene, a low delay service, or a service requiring a high number of retransmissions; the step may specifically include:

and selecting candidate resources from the remaining candidate resources in all resource selection intervals of the resource selection window, and reporting the candidate resources to a high layer for resource selection.

It should be noted that, for a service in a high congestion scene, when a resource elimination process is performed, the resource selection window has less remaining resources, and there is a possibility that the ratio of remaining candidate resources after resource elimination is smaller than the preset ratio in the embodiment of the present invention, if the resource selection for the service in the high congestion scene is to be completed, the RSRP threshold needs to be raised many times in the existing adopted manner, so that the ratio of remaining candidate resources after resource elimination exceeds the preset ratio, but this may cause higher RSRP of the selected remaining candidate resources, and if these resources are selected in the subsequent resource selection process, interference by other terminal UEs is severe during transmission, so that reliability of the overall communication is reduced, and if retransmission is increased, congestion is more severe.

For the low-delay service, the interval length of the resource selection window corresponding to the low-delay service is smaller than that of the resource selection window corresponding to the non-delay service, the total selectable candidate resources are less than the selectable candidate resources of the non-delay service under the same threshold, the ratio of the remaining candidate resources after the resource elimination is smaller than the preset ratio in the embodiment of the invention, and if the resource selection of the low-delay service is to be completed, the existing adopted mode is the same as the service in the high-congestion scene, so that the problem also exists.

In order to solve the above problem and improve the reliability of the overall communication, as an optional implementation manner, in a case that the target service is a service in a high congestion scenario or a low latency service, step 101 of the method according to the embodiment of the present invention may specifically include:

Here, the target service is a service in a high congestion scenario; in this step, reducing the ratio of the remaining candidate resources excluding the resources from the preset ratio to a first target ratio may specifically include:

pre-configuring;

configuring a high layer;

a first preset correspondence between the channel busy rate CBR and the remaining candidate resource proportion of resource exclusions.

Optionally, the first preset correspondence between the channel busy rate CBR and the remaining candidate resource ratio for resource exclusion may be that the remaining candidate resource ratio for resource exclusion is processed by a function related to CBR. For example, the first target ratio S' = Y (1-CBR), where Y may be preconfigured or high level configured.

It should be noted that, for a service in a high congestion scenario, after reducing the ratio of the remaining candidate resources to be excluded from the resources from the preset ratio to the first target ratio, correspondingly, in a case that the ratio of the remaining candidate resources in the current resource selection window exceeds the adjusted target ratio, stopping resource exclusion may specifically include:

and stopping resource exclusion when the remaining candidate resource proportion in the current resource selection window exceeds a first target proportion.

Correspondingly, selecting candidate resources from the remaining candidate resources in the target resource selection interval, reporting to a high layer for resource selection, may specifically include:

For a service in a high congestion scenario, in an example, referring to fig. 2, an implementation process of the resource selection process of the method of the present invention is specifically described.

Suppose that the time for triggering the resource selection is n, the time interval between the front edge of the resource selection window and n is T1, and the time interval between the rear edge of the resource selection window is T2. Here, the selection of T1 and T2 depends on the UE implementation, and the selection of T2 by the UE should satisfy the delay requirement.

In the case that the system is congested, the remaining candidate resource proportion limit S of resource exclusion for reusing LTE is 20%, CBR =82% is detected, which indicates that congestion is detected, and the remaining candidate resource proportion value S of resource exclusion may be reduced to S ', S ' is a function processing on CBR, specifically, S ' =0.5 (1-CBR) =9%.

And stopping resource exclusion when the ratio of the remaining candidate resources in the [ n + T1, n + T2) exceeds 9%. Referring to the black square in fig. 2, the black square represents the remaining candidate resources, the white square represents the occupied resources, the proportion of the current remaining candidate resources reaches 18%, and exceeds 9%, the resource exclusion process is stopped, the RSRP measurement threshold does not need to be adjusted, and then, the candidate resources are selected from the remaining candidate resources (i.e., the black square in the figure) of [ n + T1, n + T2) and reported to the upper layer for resource selection.

Here, selecting a candidate resource from the remaining candidate resources of [ n + T1, n + T2) is specifically: and performing RSSI measurement on the candidate resource set in the remaining candidate resources, and selecting the candidate resource set meeting the preset conditions.

Here, the target service is a low latency service; in this step, reducing the ratio of the remaining candidate resources excluding the resources from the preset ratio to a first target ratio may specifically include:

pre-configuring;

configuring a high layer;

Further, before the remaining candidate resource proportion excluded from the resources is reduced from the preset proportion to the first target proportion by the first weighting coefficient X of the preset proportion, the method further includes:

obtaining the first weighting factor X by one of:

pre-configuring;

configuring a high layer;

a second preset corresponding relation between the ratio of the low-delay resource selection window length to the resource selection window length of basic road safety application and the weighting coefficient;

It should be noted that, alternatively, the second preset corresponding relationship between the ratio of the low-latency resource selection window length to the resource selection window length of the basic road safety application and the weighting coefficient may be obtained by processing the first weighting coefficient X through a correlation function with the ratio of the low-latency resource selection window length to the resource selection window length of the basic road safety application.

Alternatively, the third preset correspondence between the congestion ratio and the weighting coefficient may be obtained by processing the first weighting coefficient X by a function related to the congestion ratio.

Optionally, the fourth preset corresponding relationship between the proportion of the resource to be sent occupying the whole resource in the resource selection window and the weighting coefficient may be obtained by processing the first weighting coefficient X by a function related to the proportion of the resource to be sent occupying the whole resource in the resource selection window.

It should be noted that, for the service with low latency, after reducing the ratio of the remaining candidate resources excluded from the resources from the preset ratio to the first target ratio, correspondingly, in the case that the ratio of the remaining candidate resources in the current resource selection window exceeds the adjusted target ratio, stopping resource exclusion may specifically include:

For low latency service, in an example, referring to fig. 3, a process of implementing the resource selection process of the method of the present invention is specifically described.

The UE needs to send low-latency traffic, T1=4ms, T2=11ms. The remaining candidate resource fraction for resource exclusion for reuse of LTE is limited to S20%. The remaining candidate resources in the resource selection window, see the grid square in fig. 3, are only 4, and the other resources, see the white square in fig. 3, are all occupied by other UEs and RSRP is higher than the current RSRP threshold, and the ratio of the remaining candidate resources to all resources in the resource selection window is 4/21=19% < 20%, and resource exclusion is not completed. Since the service is a low-latency service, the ratio of the remaining candidate resources can be decreased to a weighting coefficient 20% smaller than 1, and the weighting coefficient is 0.5 in advance, the ratio of the remaining candidate resources after resource exclusion is 10%, the ratio of the remaining candidate resources to all resources in the resource selection window is 4/21=19% > 10%, the resource exclusion process is stopped, the RSRP measurement threshold does not need to be adjusted, and then, the candidate resources are selected from the remaining candidate resources (i.e., grid squares in the drawing) of [ n + T1, n + T2) and reported to the upper layer for resource selection. Therefore, the communication quality of the low-delay service can be ensured.

It should be further noted that, for the aperiodic service, when the UE triggers resource selection at n times, according to PSCCH information carried by the monitored initial transmission or partial retransmission of the aperiodic service, the resource occupied by the partial retransmission in the resource selection window is excluded, but the maximum time interval between the initial retransmission services cannot exceed the HARQ (Hybrid Automatic Repeat reQuest) delay budget (LTE-V2X is defined as 16 ms), the HARQ delay budget is denoted as T3, the existing resource exclusion and resource selection mechanism is adopted, and if the resource of the aperiodic service is excluded, the excluded resources all exist in the resource selection window interval of [ n + T1, n + T3], and the resource selection window interval of (n + T3, n + T2) does not occupy the resource of the perceived aperiodic service. This may be the case where resource non-uniformities are excluded from the resource selection window. In order to solve the problem of uneven resource elimination in a resource selection window when sending an aperiodic service, as an optional implementation manner, under the condition that the target service is the aperiodic service, a resource selection interval of the resource selection window is [ n + T1, n + T2], wherein n is the time when the terminal triggers resource selection; the method step 101 of the embodiment of the present invention may specifically include:

the first method is as follows: determining the preset proportion as the proportion of the remaining candidate resources in a first resource selection interval in the resource selection window through pre-configuration or high-level configuration, wherein the first resource selection interval is (n + T3, n + T2), T3 is a hybrid automatic repeat request delay budget HARQ delay budget, and T1 is more than T3 and less than T2;

in this implementation, the preset ratio is determined as the ratio of the remaining candidate resources in the first resource selection interval in the resource selection window, that is, the resource selection time domain interval is changed, and resource exclusion is stopped when the ratio of the remaining candidate resources that are not excluded in the first resource selection interval, that is, the (n + T3, n + T2) interval, exceeds the preset ratio, in consideration of whether the ratio of the remaining candidate resources that are not excluded in the first resource selection interval reaches the preset ratio. Thereby achieving the effect of uniform resource exclusion in the resource selection window.

It should be noted that, for the aperiodic service, after the preset ratio is determined as the ratio of the remaining candidate resources in the first resource selection interval in the resource selection window through pre-configuration or high-level configuration, correspondingly, in the case that the ratio of the remaining candidate resources in the current resource selection window exceeds the adjusted target ratio, stopping resource exclusion may specifically include:

and when the proportion of the remaining candidate resources in the current first resource selection interval exceeds the preset proportion, stopping resource elimination.

For the aperiodic service, in an example, referring to fig. 4, a process of implementing the resource selection process of the method of the present invention is specifically described.

When aperiodic traffic exists in the NR-V2X communication system, T1=4ms, T3=15ms, and T2=20ms. The ratio of remaining candidate resources excluded by pre-configured (n + T3, n + T2) interval resources is 20%, the resource selection window, see fig. 4, a white square is occupied resources, a square filled with oblique lines is available remaining candidate resources between (n + T1, n + T3), and a square filled with many points is available remaining candidate resources between (n + T3, n + T2). It can be known from the figure that the available remaining candidate resources in the (n + T3, n + T2) resource selection interval account for 25% of all resources in the resource selection window, which exceeds 20%, the resource exclusion process is stopped, and the candidate resources are selected from the remaining candidate resources of (n + T3, n + T2) and reported to the upper layer for resource selection.

The second method comprises the following steps: and according to a second weighting coefficient Y of the preset proportion S and a third weighting coefficient Z of the preset proportion S, respectively performing weighting processing on the remaining candidate resource proportion in a second resource selection interval in the resource selection window and the remaining candidate resource proportion in the first resource selection interval to obtain that the remaining candidate resource proportion in the second resource selection interval is S x Y, the remaining candidate resource proportion in the first resource selection interval is S x Z, wherein the second resource selection interval is [ n + T1, n + T3], Y is more than 0 and less than 1, and Z is not less than 1-Y.

In this implementation, the remaining candidate resource ratios in the second resource selection interval [ n + T1, n + T3] and the first resource selection interval (n + T3, n + T2) are weighted, so that the resource exclusion in the resource selection window is uniform.

Further, before performing weighting processing on the remaining candidate resource proportion in the second resource selection interval in the resource selection window and the remaining candidate resource proportion in the first resource selection interval according to the second weighting coefficient Y of the preset proportion S and the third weighting coefficient Z of the preset proportion S, respectively, to obtain that the remaining candidate resource proportion in the second resource selection interval is S × Y, and the remaining candidate resource proportion in the first resource selection interval is S × Z, the method of the present invention may further include:

obtaining the second weighting factor Y by one of:

pre-configuring;

configuring a high layer;

It should be noted that, the fifth preset correspondence between the weighting coefficient and the ratio of the interval length of the second resource selection interval to the total resource selection interval length of the resource selection window may be obtained by processing the second weighting coefficient Y by a function related to the ratio of the interval length of the second resource selection interval to the total resource selection interval length of the resource selection window. For example, Y = (T3-T1)/(T2-T1).

It should be noted that, for the non-periodic service, after the remaining candidate resource proportion in the second resource selection interval in the resource selection window and the remaining candidate resource proportion in the first resource selection interval are respectively weighted according to the second weighting coefficient Y of the preset proportion S and the third weighting coefficient Z of the preset proportion S to obtain that the remaining candidate resource proportion in the second resource selection interval is S × Y, and the remaining candidate resource proportion in the first resource selection interval is S × Z, correspondingly, in the case that the remaining candidate resource proportion in the current resource selection window exceeds the adjusted target proportion, stopping resource exclusion may specifically include:

or,

stopping resource exclusion when at least one of a remaining candidate resource proportion in the second resource selection interval and a remaining candidate resource proportion in the first resource selection interval exceeds the preset proportion S.

In addition, in order to meet the reliability requirement, the service with high retransmission times needs to be transmitted, but the high retransmission times also causes the problem that enough transmission resources cannot be selected in the resource selection window or the randomness of the selected transmission resources is insufficient. In order to solve this problem, as an optional implementation manner, in a case that the target service is a service with a high retransmission number, before step 101, the method in the embodiment of the present invention may further include:

accordingly, step 101 of the method of the present invention may specifically include:

In this step, under the condition that the number of different combinations that can be selected from the remaining candidate resources after resource exclusion and satisfy the resource retransmission times does not exceed the target transmission resource random selection number, it is described that the randomness of the transmission resource selected from the remaining candidate resources after resource exclusion is insufficient, that is, the ratio of the remaining candidate resources after resource exclusion is low, and by executing this step, that is, increasing the ratio of the remaining candidate resources after resource exclusion, the number of different combinations that can be selected from the remaining candidate resources after resource exclusion and satisfy the resource retransmission times by the terminal exceeds the target transmission resource random selection number.

It should be noted that increasing the ratio of the remaining candidate resources excluded from the resources from the preset ratio to the second target ratio may specifically include:

and increasing the proportion of the remaining candidate resources for resource exclusion according to a preset step length, and repeating the resource exclusion process until the number of different combinations which can be selected from the remaining candidate resources after the resource exclusion and meet the resource retransmission times exceeds the target sending resource random selection number, wherein the proportion of the remaining candidate resources for the corresponding resource exclusion is a second target proportion.

Here, for the service requiring high retransmission times, after increasing the ratio of the remaining candidate resources for resource exclusion from the preset ratio to the second target ratio, correspondingly, in the case that the ratio of the remaining candidate resources in the current resource selection window exceeds the adjusted target ratio, stopping resource exclusion may specifically include:

and stopping resource exclusion when the remaining candidate resource proportion in the current resource selection window exceeds a second target proportion.

It should be noted that, the ratio of the remaining candidate resources in the current resource selection window exceeds the second target ratio, which indicates that the number of different combinations that can be selected by the terminal in the remaining candidate resources after resource exclusion and satisfy the resource retransmission times exceeds the target random selection number of the transmission resources, and sufficient transmission resources can be selected.

For a service requiring a high number of retransmissions, in an example, refer to fig. 5 to 7, which specifically describe an implementation process of the resource selection process of the method of the present invention.

The UE obtains the ratio of the remaining candidate resources excluded by the resource according to the high-level configuration as 20% of the preset ratio, obtains the number of transmission retransmissions as 4 according to the PSCCH, that is, the number of transmission is 5 in total, and the remaining candidate resources after the resource exclusion are shown before the ratio is increased in fig. 5, where squares filled with oblique lines indicate available remaining candidate resources, although the number of available resources is 10, the ratio of the remaining candidate resources excluded by the corresponding resource is 20.8% and exceeds 20%, the number of available slot resources in the available resources is only 4, and a slot that can satisfy the transmission for 5 times and the retransmission for 4 times cannot be found, that is, the number of transmission satisfying the retransmission for four times is 0 at present.

Therefore, the ratio of the remaining candidate resources for resource exclusion is increased by 5% step length, and in this way, the ratio of the remaining candidate resources for resource exclusion is increased, as shown in fig. 6, at this time, a plurality of resources satisfying four retransmissions can be selected, as shown in transmission selection 1 (shown by black square on the left side in the figure) and transmission selection 2 (shown by black square on the right side in the figure) in fig. 7, and the number of the selected resources is the random selection number 2, so that the resource exclusion process is stopped, and the resource set with the increased ratio is reported to the upper layer as the candidate resource set for resource selection.

Based on the embodiment shown in fig. 1, as an optional implementation manner, after step 101 of the method of the present invention, the method may further include:

in the case that the remaining candidate resource proportion in the current resource selection window does not exceed the adjusted target proportion, performing one of the following steps:

giving up the transmission and performing resource reselection;

Optionally, the preset manner includes at least one of the following manners:

the preset lifting step length of the RSRP threshold;

a preset maximum value of the RSRP threshold;

and presetting the lifting times of the RSRP threshold.

It should be noted that, when the preset manner is the preset lifting step of the RSRP threshold, the RSRP threshold is lifted according to the preset lifting step of the RSRP threshold, for example, 3dB, and the resource excluding process is repeated, if the remaining candidate resources meeting the ratio requirement are not successfully selected, the process is continued until the remaining candidate resources meeting the ratio requirement are selected, that is, until the ratio of the remaining candidate resources in the resource selection window exceeds the target ratio.

And if the preset mode is the preset highest value of the RSRP threshold and the preset lifting step length of the RSRP threshold, for example, the highest value of the RSRP threshold is set to be 0dBm, the RSRP threshold is lifted according to the preset lifting step length, for example, 3dB, the resource exclusion process is repeated, if the remaining candidate resources meeting the proportion requirement are not successfully selected, the process is continued until the threshold reaches the highest value.

It should be noted that, when the threshold reaches the maximum value, the remaining candidate resources that meet the proportion requirement are not successfully selected, the current transmission may be abandoned, and the resource reselection is performed; or, a resource preemption mechanism is adopted, and if the priority of the target service is the high priority, the terminal resource with the low priority is preempted; and if the priority of the target service is low, giving up the transmission and reselecting the resources.

And if the preset mode is the preset lifting times of the RSRP threshold and the preset lifting step length of the RSRP threshold, namely the lifting times R of the RSRP threshold are limited, if R =5, the RSRP threshold is lifted according to the preset lifting step length, such as 3dB, the resource exclusion process is repeated, if the remaining candidate resources meeting the proportion requirement are not successfully selected, the process is continued until the times reach the limiting times.

It should be noted that when the threshold lifting frequency reaches the limit frequency, the remaining candidate resources meeting the proportion requirement are not successfully selected, and the current transmission may be abandoned for resource reselection; or, a resource preemption mechanism is adopted, and if the priority of the target service is the high priority, the terminal resource with the low priority is preempted; and if the priority of the target service is low, giving up the transmission and reselecting the resource.

As shown in fig. 8, an embodiment of the present invention further provides a terminal, including: including memory 820, processor 800, transceiver 810, bus interface, and programs stored on memory 820 and executable on processor 800, perform the following processes:

Where in fig. 8, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 800 and memory represented by memory 820. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 810 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The user interface 830 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 800 in performing operations.

Optionally, the target service comprises one of the following services:

a service in a high congestion scenario;

low latency services;

non-periodic service;

traffic with high retransmission times is required.

Optionally, the processor 800 is further configured to:

and selecting candidate resources from the remaining candidate resources in a target resource selection interval, and reporting the candidate resources to a high layer for resource selection, wherein the target resource selection interval is at least part of resource selection intervals of the resource selection window.

Optionally, the target service is a service in a high congestion scene or a low delay service; the processor 800 is further configured to:

Optionally, the target service is a service in a high congestion scenario; the processor 800 is further configured to:

pre-configuring;

configuring a high layer;

Optionally, the target service is a low latency service; the processor 800 is further configured to:

pre-configuring;

configuring a high layer;

Optionally, the processor 800 is further configured to:

obtaining the first weighting factor X by one of:

pre-configuring;

configuring a high layer;

and a fourth preset corresponding relation between the proportion of the resource to be sent in the resource selection window and all the resources and the weighting coefficient.

Optionally, the target service is an aperiodic service; the resource selection interval of the resource selection window is [ n + T1, n + T2], wherein n is the moment when the terminal triggers resource selection; the processor 800 is further configured to:

Optionally, the processor 800 is further configured to:

obtaining the second weighting factor Y by one of:

pre-configuring;

configuring a high layer;

a fifth preset correspondence between the weighting coefficient and a ratio of the interval length of the second resource selection interval to the total resource selection interval length of the resource selection window.

Optionally, the processor 800 is further configured to:

or,

Optionally, the target service is a service requiring a high number of retransmissions; the processor 800 is further configured to:

Optionally, the target service is a service in a high congestion scene, a low delay service, or a service requiring a high number of retransmissions; the processor 800 is further configured to:

Optionally, the processor 800 is further configured to:

giving up the transmission and performing resource reselection;

Optionally, the preset manner includes at least one of the following manners:

the preset lifting step length of the RSRP threshold;

a preset maximum value of the RSRP threshold;

and presetting the lifting times of the RSRP threshold.

The embodiment of the invention also provides a terminal, and as the principle of solving the problem of the terminal is similar to the resource selection processing method in the embodiment of the invention, the implementation of the terminal can refer to the implementation of the method, and the repeated parts are not described again.

According to the terminal provided by the embodiment of the invention, under the condition that the service triggering resource selection is the target service, the ratio of the remaining candidate resources excluded by the resources is adjusted based on the preset ratio, so that the ratio of the available resources is reasonably set by adjusting the ratio of the remaining candidate resources excluded by the resources in consideration of the requirements of different scenes and services, the processing complexity in the resource selection process can be reduced, and the system performance is improved.

It should be noted that, the terminal provided in the embodiments of the present invention is a terminal capable of executing the resource selection processing method, and all embodiments of the resource selection processing method are applicable to the terminal and can achieve the same or similar beneficial effects.

As shown in fig. 9, an embodiment of the present invention further provides a terminal, including:

a first processing module 901, configured to adjust a ratio of remaining candidate resources excluded by the resources based on a preset ratio when a service triggering resource selection is a target service.

Optionally, the target service comprises one of the following services:

a service in a high congestion scenario;

low latency services;

non-periodic service;

traffic with high retransmission times is required.

The terminal of the embodiment of the invention further comprises:

the second processing module is used for stopping resource elimination under the condition that the proportion of the remaining candidate resources in the current resource selection window exceeds the adjusted target proportion;

and the resource reporting module is used for selecting candidate resources from the remaining candidate resources in a target resource selection interval and reporting the candidate resources to a high layer for resource selection, wherein the target resource selection interval is at least part of the resource selection interval of the resource selection window.

Optionally, the target service is a service in a high congestion scene or a low delay service; accordingly, the first processing module 901 may include:

and the first processing unit is used for reducing the proportion of the residual candidate resources excluding the resources from the preset proportion to a first target proportion.

Optionally, the target service is a service in a high congestion scenario; the first processing unit is specifically configured to:

pre-configuring;

configuring a high layer;

Optionally, the target service is a low latency service; the first processing unit is specifically configured to:

pre-configuring;

configuring a high layer;

The terminal of the embodiment of the invention can also comprise:

a first obtaining module, configured to obtain a first weighting coefficient X by one of the following manners before reducing, by the first weighting coefficient X of the preset ratio, a ratio of remaining candidate resources excluded from resources from the preset ratio to a first target ratio:

pre-configuring;

configuring a high layer;

Optionally, the target service is an aperiodic service; the resource selection interval of the resource selection window is [ n + T1, n + T2], wherein n is the moment when the terminal triggers resource selection; accordingly, the first processing module 901 may include:

a second processing unit, configured to determine, through pre-configuration or high-level configuration, the preset ratio as a ratio of remaining candidate resources in a first resource selection interval in the resource selection window, where the first resource selection interval is (n + T3, n + T2), T3 is a hybrid automatic repeat request delay budget HARQ delay budget, and T1 < T3 < T2; or,

and a third processing unit, configured to perform weighting processing on a remaining candidate resource proportion in a second resource selection interval in the resource selection window and a remaining candidate resource proportion in the first resource selection interval respectively according to the second weighting coefficient Y of the preset proportion S and a third weighting coefficient Z of the preset proportion S, so as to obtain a remaining candidate resource proportion in the second resource selection interval as S x Y, and a remaining candidate resource proportion in the first resource selection interval as S Z, where the second resource selection interval is [ n + T1, n + T3],0 < Y < 1, Z =1-Y.

The terminal of the embodiment of the invention can also comprise:

a second obtaining module, configured to respectively perform weighting processing on a remaining candidate resource proportion in a second resource selection interval in the resource selection window and a remaining candidate resource proportion in the first resource selection interval according to a second weighting coefficient Y of the preset proportion S and a third weighting coefficient Z of the preset proportion S, so as to obtain a remaining candidate resource proportion in the second resource selection interval as S Y, and obtain the second weighting coefficient Y before the remaining candidate resource proportion in the first resource selection interval is as S Z by one of the following manners:

pre-configuring;

configuring a high layer;

Optionally, the second processing module may include:

a fourth processing unit, configured to, when the preset ratio is determined as a ratio of remaining candidate resources in a first resource selection interval in the resource selection window through pre-configuration or high-level configuration, stop resource elimination when the ratio of remaining candidate resources in the current first resource selection interval exceeds the preset ratio.

Correspondingly, the resource reporting module may include:

a first resource reporting unit, configured to select candidate resources from remaining candidate resources in all resource selection intervals of the resource selection window and report the selected candidate resources to a high layer for resource selection; or,

and a second resource reporting unit, configured to select a candidate resource from the remaining candidate resources in the first resource selection interval and report the selected candidate resource to a higher layer for resource selection.

Optionally, the second processing module may include:

a fifth processing unit, configured to perform weighting processing on a remaining candidate resource proportion in a second resource selection interval in the resource selection window and a remaining candidate resource proportion in the first resource selection interval respectively according to a second weighting coefficient Y of the preset proportion S and a third weighting coefficient Z of the preset proportion S, to obtain that the remaining candidate resource proportion in the second resource selection interval is S x Y, and when the remaining candidate resource proportion in the first resource selection interval is S Z, stop resource exclusion when the remaining candidate resource proportion in the second resource selection interval exceeds S x Y and the remaining candidate resource proportion in the first resource selection interval exceeds S Z currently; or,

a sixth processing unit, configured to stop resource exclusion when at least one of a remaining candidate resource proportion in the second resource selection interval and a remaining candidate resource proportion in the first resource selection interval currently exceeds the preset proportion S;

correspondingly, the resource reporting module may include:

a third resource reporting unit, configured to select a candidate resource from the remaining candidate resources in all resource selection intervals of the resource selection window and report the selected candidate resource to a higher layer for resource selection; or,

a fourth resource reporting unit, configured to select a candidate resource from remaining candidate resources in a target resource selection interval in which a remaining candidate resource ratio exceeds the preset ratio S, and report the candidate resource to a higher layer for resource selection, where the target resource selection interval is at least one of the first resource selection interval and the second resource selection interval.

Optionally, the target service is a service requiring a high number of retransmissions; the terminal of the embodiment of the invention can also comprise:

a third obtaining module, configured to obtain, based on a preset ratio, resource retransmission times of the target service based on a pre-configured or physical direct link control channel PSCCH before adjusting a ratio of remaining candidate resources excluded by the resources;

a fourth obtaining module, configured to, when the resource retransmission times are greater than retransmission times of basic road security applications, obtain, through pre-configuration or high-level configuration, a target transmission resource random selection number, where the target transmission resource random selection number is a lower limit of different combinations that can be selected from remaining candidate resources after resource exclusion and satisfy the resource retransmission times; accordingly, the first processing module 901 may include:

a seventh processing unit, configured to, when the number of different combinations that can be selected in the remaining candidate resources after resource exclusion and satisfy the resource retransmission times does not exceed the target transmission resource random selection number, increase the ratio of the remaining candidate resources after resource exclusion from the preset ratio to a second target ratio, so that the number of different combinations that can be selected by the terminal in the remaining candidate resources after resource exclusion and satisfy the resource retransmission times exceeds the target transmission resource random selection number.

Optionally, the target service is a service in a high congestion scene, a low delay service, or a service requiring a high number of retransmissions; correspondingly, the resource reporting module may include:

and a fifth resource reporting unit, configured to select a candidate resource from the remaining candidate resources in all resource selection intervals of the resource selection window and report the selected candidate resource to a higher layer for resource selection.

The terminal of the embodiment of the invention can also comprise:

a third processing module, configured to, after adjusting the remaining resource candidate proportion for resource exclusion based on the preset proportion, and in a case that the remaining candidate resource proportion in the current resource selection window does not exceed the adjusted target proportion, perform one of the following steps:

giving up the transmission and performing resource reselection;

Optionally, the preset manner includes at least one of the following manners:

the preset lifting step length of the RSRP threshold;

a preset maximum value of the RSRP threshold;

and presetting the lifting times of the RSRP threshold.

The embodiment of the invention also provides a terminal, and as the principle of solving the problem of the terminal is similar to the resource selection processing method in the embodiment of the invention, the implementation of the terminal can refer to the implementation of the method, and repeated parts are not described again.

According to the terminal provided by the embodiment of the invention, under the condition that the service for triggering resource selection is a target service, the proportion of the remaining candidate resources excluded by resources is adjusted based on the preset proportion through the first processing module, so that the proportion of the available resources is reasonably set by adjusting the proportion of the remaining candidate resources excluded by resources in consideration of different scenes and service requirements, the processing complexity in the resource selection process can be reduced, and the system performance is improved.

In some embodiments of the invention, there is also provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:

When executed by the processor, the program can implement all the implementation manners applied to the method embodiments of the terminal side shown in fig. 1 to fig. 7, and details are not described here for avoiding repetition.

In various embodiments of the present invention, it should be understood that the sequence numbers of the above-mentioned processes do not imply an order of execution, and the order of execution of the processes should be determined by their functions and inherent logic, and should not limit the implementation process of the embodiments of the present invention in any way.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A resource selection processing method is applied to a terminal, and is characterized by comprising the following steps:

under the condition that the service triggering the resource selection is the target service, the proportion of the remaining candidate resources excluded by the resources is adjusted based on a preset proportion;

giving up the transmission and performing resource reselection;

raising a Reference Signal Received Power (RSRP) threshold according to a preset mode, and repeating a resource exclusion process based on the raised RSRP threshold until the proportion of the remaining candidate resources in the resource selection window exceeds the target proportion; the preset mode comprises the following steps: at least one of a preset lifting step length of the RSRP threshold, a preset maximum value of the RSRP threshold and a preset lifting frequency of the RSRP threshold;

giving up the sending and performing resource reselection under the condition that the priority of the target service is low;

stopping resource elimination under the condition that the proportion of the remaining candidate resources in the current resource selection window exceeds the adjusted target proportion; and selecting candidate resources from the remaining candidate resources in a target resource selection interval, reporting the selected candidate resources to a high layer for resource selection, wherein the target resource selection interval is at least part of the resource selection interval of the resource selection window.

2. The method of claim 1, wherein the target service comprises one of:

a service in a high congestion scenario;

low latency services;

non-periodic service;

traffic with high retransmission times is required.

3. The method of claim 1, wherein the target service is a service in a high congestion scenario or a low latency service;

and reducing the proportion of the remaining candidate resources excluded by the resources from the preset proportion to a first target proportion.

4. The method of claim 3, wherein the target traffic is traffic in a high congestion scenario;

pre-configuring;

configuring a high layer;

5. The method of claim 3, wherein the target traffic is low latency traffic;

pre-configuring;

configuring a high layer;

6. The method according to claim 5, wherein before reducing the remaining candidate resource proportion of resource exclusion from the preset proportion to the first target proportion by the first weighting factor X of the preset proportion, the method further comprises:

obtaining the first weighting factor X by one of:

pre-configuring;

configuring a high layer;

7. The method of claim 1, wherein the target traffic is aperiodic traffic; the resource selection interval of the resource selection window is [ n + T1, n + T2], wherein n is the moment when the terminal triggers resource selection;

8. The method according to claim 7, wherein the remaining candidate resource proportion in the second resource selection interval in the resource selection window and the remaining candidate resource proportion in the first resource selection interval are weighted according to a second weighting coefficient Y of the preset proportion S and a third weighting coefficient Z of the preset proportion S, respectively, so as to obtain the remaining candidate resource proportion in the second resource selection interval as S x Y, and before the remaining candidate resource proportion in the first resource selection interval is as S x Z, the method further comprises:

obtaining the second weighting factor Y by one of:

pre-configuring;

configuring a high layer;

9. The method of claim 7, wherein in case that the preset ratio is determined as the ratio of remaining candidate resources in the first resource selection interval in the resource selection window through pre-configuration or high-layer configuration,

10. The method according to claim 7, wherein in a case that the remaining candidate resource proportion in a second resource selection interval in the resource selection window and the remaining candidate resource proportion in the first resource selection interval are weighted according to a second weighting coefficient Y of the preset proportion S and a third weighting coefficient Z of the preset proportion S to obtain the remaining candidate resource proportion in the second resource selection interval as S Y and the remaining candidate resource proportion in the first resource selection interval as S Z respectively,

or,

11. The method of claim 1, wherein the target traffic is traffic requiring a high number of retransmissions;

12. The method according to claim 1, wherein the target service is a service in a high congestion scenario, a low latency service, or a service requiring a high number of retransmissions;

13. A terminal, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; wherein the processor is configured to read a program in the memory and execute the following processes:

under the condition that the service for triggering resource selection is a target service, the proportion of the remaining candidate resources excluded by the resources is adjusted based on a preset proportion;

giving up the transmission and performing resource reselection;

the processor is further configured to: stopping resource elimination under the condition that the proportion of the remaining candidate resources in the current resource selection window exceeds the adjusted target proportion; and selecting candidate resources from the remaining candidate resources in a target resource selection interval, reporting the selected candidate resources to a high layer for resource selection, wherein the target resource selection interval is at least part of the resource selection interval of the resource selection window.

14. The terminal of claim 13, wherein the target service comprises one of the following services:

a service in a high congestion scenario;

low latency services;

non-periodic service;

traffic with high retransmission times is required.

15. The terminal of claim 13, wherein the target service is a service in a high congestion scenario or a low latency service; the processor is further configured to:

16. The terminal of claim 15, wherein the target traffic is traffic in a high congestion scenario; the processor is further configured to:

pre-configuring;

configuring a high layer;

17. The terminal of claim 15, wherein the target traffic is low latency traffic; the processor is further configured to:

pre-configuring;

configuring a high layer;

18. The terminal of claim 17, wherein the processor is further configured to:

obtaining the first weighting factor X by one of:

pre-configuring;

configuring a high layer;

19. The terminal of claim 13, wherein the target traffic is aperiodic traffic; the resource selection interval of the resource selection window is [ n + T1, n + T2], wherein n is the moment when the terminal triggers resource selection; the processor is further configured to:

20. The terminal of claim 19, wherein the processor is further configured to:

obtaining the second weighting factor Y by one of the following ways:

pre-configuring;

configuring a high layer;

21. The terminal of claim 19, wherein the processor is further configured to:

22. The terminal of claim 19, wherein the processor is further configured to:

or,

selecting candidate resources from the remaining candidate resources in all resource selection intervals of the resource selection window and reporting the selected candidate resources to a high layer for resource selection; or,

23. The terminal of claim 13, wherein the target service is a service requiring a high number of retransmissions; the processor is further configured to:

24. The terminal of claim 13, wherein the target service is a service in a high congestion scenario, a low latency service, or a service requiring a high number of retransmissions; the processor is further configured to:

25. A terminal, comprising:

the first processing module is used for adjusting the proportion of the remaining candidate resources excluded by the resources based on a preset proportion under the condition that the service for triggering the resource selection is a target service;

wherein the target service comprises one of the following services:

a service in a high congestion scenario;

low latency services;

non-periodic service;

services requiring high retransmission times;

wherein, under the condition that the ratio of the remaining candidate resources in the current resource selection window does not exceed the adjusted target ratio, one of the following processes is executed:

giving up the transmission and performing resource reselection;

26. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the resource selection processing method according to any one of claims 1 to 12.