CN114390688A

CN114390688A - Resource determining method, resource configuration method and device

Info

Publication number: CN114390688A
Application number: CN202011131032.7A
Authority: CN
Inventors: 张轶; 张静文
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2022-04-22
Also published as: WO2022083642A1

Abstract

The invention provides a resource determining method, a resource configuring method and a resource configuring device. The method comprises the following steps: determining a resource subset according to a first parameter or a first rule, wherein a high layer selects resources for physical side link shared channel PSSCH or physical side link control channel PSCCH transmission from the resource subset; the first parameter includes at least one of: at least one reference signal received power, RSRP, threshold list comprising RSRP thresholds for each priority combination; at least one first value, wherein the first value is an increase value of the RSRP threshold in the step of determining the resource subset by the terminal; at least one preemption-enabling parameter; the first rule includes: at least one terminal excludes the condition for candidate slot resources.

Description

Resource determining method, resource configuration method and device

Technical Field

The present invention relates to the field of wireless technologies, and in particular, to a resource determining method, a resource configuring method, and a device.

Background

The New air interface (NR) Vehicle outside link (V2X) supports two resource allocation methods: a Mode-1 resource allocation Mode and a Mode-2 resource allocation Mode, wherein Mode-1 is a resource allocation Mode controlled by the base station, and Mode-2 is a resource allocation Mode autonomous by the terminal. The Mode-2 resource selection Mode is "listen before send", and determines the resource that should be selected in the resource selection window (selection window) based on the sensing of the resource in the sensing window (sensing window).

Currently, the resource selection for the Mode-2 comprises a full sensing Mode, a partial sensing Mode and an autonomous resource selection Mode; for part of the perception modes, the resource selection window and the perception window are a subset of the corresponding resource selection window and the corresponding perception window of all the perception modes; for the autonomous resource selection mode, the terminal does not need to perform a sensing process, directly forms an available candidate single-slot resource set, reports the set to the MAC layer, and performs random resource selection by the MAC.

Because the terminal autonomous resource allocation modes comprise a plurality of types, when the terminal selects a part of sensing modes, the number of time slots required to be sensed by the terminal and the number of candidate single-time-slot resources are reduced compared with the number of all sensing modes, and the problem of increased resource collision probability exists; in addition, when the terminal selects the autonomous resource selection mode, since the sensing process is not required to be executed at all, the available candidate single-slot resource set is directly constructed and reported to the MAC layer, and the MAC layer performs random selection, the probability of resource collision is the highest.

At present, different resource selection modes coexist in the same resource pool, and how to protect resources selected by a terminal adopting autonomous resource selection from being interfered under the condition is necessary for improving transmission reliability.

Disclosure of Invention

The technical scheme of the invention aims to provide a resource determining method, a resource allocation method and a resource allocation device, which are used for resource selection when multiple resource selection modes coexist, and avoid the problem of resource collision.

The embodiment of the invention provides a resource determination method, which is applied to a terminal, wherein the method comprises the following steps:

determining a resource subset according to a first parameter or a first rule, wherein a high layer selects resources for physical side link shared channel PSSCH or physical side link control channel PSCCH transmission from the resource subset;

the first parameter includes at least one of:

at least one reference signal received power, RSRP, threshold list comprising RSRP thresholds for each priority combination;

at least one first value, wherein the first value is an increase value of the RSRP threshold in the step of determining the resource subset by the terminal;

at least one preemption-enabling parameter;

the first rule includes: at least one terminal excludes the condition for candidate slot resources.

Optionally, in the resource determining method, when the terminal determines the resource subset according to a first parameter, the first parameter is provided by a network-side high-level configuration parameter, or is provided by pre-configuration, or is agreed by a protocol;

wherein different first information corresponds to different RSRP threshold lists, or different first values, or different preemption enabling parameters.

Optionally, in the resource determining method, in the process of determining the resource subset by the terminal according to the first parameter:

the terminal excludes the candidate single-time slot resource meeting the first condition;

wherein the first condition comprises at least: a reference signal received power, RSRP, measurement for the received direct link control information, SCI, is above a first RSRP threshold;

the first RSRP threshold is included in one of the at least one RSRP threshold list, the one RSRP threshold list corresponding to or determined by the first information.

initializing the first set A into all candidate menu time slot resources, wherein the total number of the candidate menu time slot resources is M;

after the terminal excludes the single time slot resources meeting the first condition from the first set A, if the number of the remaining candidate single time slot resources in the first set A is less than the product of the total number M of the candidate single time slot resources and a second value, increasing the RSRP threshold value in the RSRP threshold value list by a first step length;

wherein the first step size is: one of the at least one first value corresponding to or determined by first information or the RSRP threshold list.

initializing the first set A into all candidate single-slot time slot resources, wherein the total number of the candidate single-slot time slot resources is M;

after the terminal excludes the single time slot resources meeting the first condition from the first set A, if the number of the remaining candidate single time slot resources in the first set A is smaller than the product of the total number M of the candidate single time slot resources and the second value, increasing the RSRP threshold value in the RSRP threshold value list corresponding to the first information by a first step length, wherein the first step length is one of the at least one first value.

Optionally, in the resource determining method, according to the first rule, in the process of determining the resource subset, the terminal:

the terminal excludes candidate single-slot resources satisfying a second condition, wherein the second condition is corresponding to or determined by the first information;

the second condition includes at least one of:

resource blocks and time slots determined by the format of the SCI received in the first time slot, or resource blocks and time slots determined by the format of the SCI received in the second time slot set and the same format as the SCI received in the first time slot are overlapped with resources determined according to candidate single-slot resources and/or a source reservation period;

resource blocks and slots determined by the format of the SCI received in the first slot, or resource blocks and slots determined by the format of the SCI received in the second slot set, which is the same as the format of the SCI received in the first slot, overlap with resources determined according to candidate single-slot resources and/or source reservation periods, and RSRP measurements for the SCIs are higher than a first RSRP threshold;

wherein the second set of slots is determined according to the first slot and/or the resource reservation period indicated by the SCI.

Optionally, the resource determination method, wherein,

the first information includes at least one of:

a resource selection mechanism;

second information contained in the received direct link control information SCI;

the format of the received direct link control information SCI;

and scrambling RNTI of CRC of the received direct link control information SCI.

Optionally, the resource determination method, wherein the resource selection mechanism includes at least one of random resource selection, partial sensing, full sensing, and other mechanisms except for random resource selection and partial sensing.

Optionally, the resource determination method may determine the resource selection mechanism by at least one of:

the format of the received direct link control information SCI;

and scrambling RNTI of CRC of the received direct link control information SCI.

Optionally, the resource determination method, wherein,

the second information is used for determining a resource selection mechanism; or

The second information is for determining that a first RSRP threshold is included in one of the at least one list of RSRP thresholds; alternatively, the first and second electrodes may be,

the second information is used for determining that the first step length is one of the at least one first value; alternatively, the first and second electrodes may be,

the second information is used for determining that the terminal increases the RSRP threshold value in at least one RSRP threshold value list in the RSRP threshold value list by a first step length; alternatively, the first and second electrodes may be,

the second information is used for determining the preemption enabling parameter; or

The second information is used for determining the condition that the terminal excludes the candidate list time slot resource.

Optionally, the resource determining method further includes:

the terminal reports to higher layers at least one of the following information:

third information indicating a priority of the candidate single slot resource;

fourth information indicating whether the candidate single-slot resource overlaps with the first resource; wherein the first resource is: and when the first information is first preset information or a first preset value, the resource block and the time slot determined by the received SCI.

Another aspect of the embodiments of the present invention further provides a resource allocation method, where the method includes:

configuring a first parameter and/or a first rule; the terminal determines a resource subset according to a first parameter or a first rule;

the first parameter includes at least one of:

at least one preemption-enabling parameter;

Optionally, in the resource configuration method, the first parameter is provided by a network-side higher-layer configuration parameter;

Optionally, the resource allocation method, wherein the first rule includes a second condition, and the second condition includes at least one of:

receiving resource blocks and time slots determined by the format of the SCI received in the first time slot, or receiving the resource blocks and the time slots determined by the SCI format which is the same as the format of the SCI received in the first time slot in the second time slot set, wherein the resource blocks and the time slots are overlapped with resources determined according to candidate single-slot resources and/or a source reservation period;

receiving resource blocks and slots determined by the format of SCI received in a first slot, or receiving resource blocks and slots determined by the format of SCI received in the first slot in a second slot set, wherein the resource blocks and slots are overlapped with resources determined according to candidate single-slot resources and/or source reservation periods, and the RSRP measurement for the SCI is higher than a first RSRP threshold value;

Optionally, the resource configuration method, wherein the first information includes at least one of:

a resource selection mechanism;

the second information contained in the direct link control information SCI received by the terminal;

the format of the direct link control information SCI received by the terminal;

and the terminal scrambles the RNTI of the CRC of the received direct link control information SCI.

Optionally, in the resource allocation method, the resource selection mechanism includes at least one of random resource selection, partial sensing, full sensing, and other mechanisms except for random resource selection and partial sensing.

Optionally, in the resource configuration method, the second information is used to determine a resource selection mechanism; or

The embodiment of the invention also provides a resource determining device, which is applied to a terminal, wherein the device comprises:

a determining module, configured to determine a resource subset according to a first parameter or a first rule, where a high layer selects a resource for transmission of a physical side link shared channel PSCCH or a physical side link control channel PSCCH from the resource subset;

the first parameter includes at least one of:

at least one preemption-enabling parameter;

The embodiment of the present invention further provides a resource allocation device, which is applied to a base station, wherein the device includes:

a configuration module for configuring a first parameter and/or a first rule; the terminal determines a resource subset according to a first parameter or a first rule;

the first parameter includes at least one of:

at least one preemption-enabling parameter;

An embodiment of the present invention further provides a network device, where the network device includes: a processor, a memory and a program stored on the memory and executable on the processor, the program, when executed by the processor, implementing a resource determination method as defined in any one of the above, or implementing a resource configuration method as defined in any one of the above.

An embodiment of the present invention further provides a readable storage medium, where the readable storage medium stores a program, and the program, when executed by a processor, implements the steps in the resource determination method described in any one of the above, or implements the steps in the resource configuration method described in any one of the above.

At least one of the above technical solutions of the present invention has the following beneficial effects:

according to the resource allocation method provided by the embodiment of the invention, when the resource subset is determined by adopting the corresponding first parameter or first rule, the terminal which selects the resources in a perception mode can more easily exclude the resources selected by the terminal which selects the autonomous resources, so that the resource collision probability is reduced.

Drawings

Fig. 1 is a schematic flowchart of a resource determination method according to an embodiment of the present invention;

FIG. 2 is a diagram of a timeslot structure for resource selection based on sensing;

FIG. 3 is a flowchart illustrating a resource allocation method according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a resource determination apparatus according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a resource allocation apparatus according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a base station 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.

In order to avoid the resource collision probability caused by interference of a terminal adopting autonomous resource selection when different resource selection modes coexist in the same resource pool, embodiments of the present invention provide a resource determining method, which enables the terminal to select resources according to the determined resource selection mode by using a first parameter or a first rule for resource selection, so that the terminal selecting resources by using autonomous resource selection in a sensing mode can more easily exclude the resources selected by the terminal adopting autonomous resource selection, thereby reducing the resource collision probability and improving the reliability of data transmission.

One embodiment of the present invention provides a resource determining method, which is applied to a terminal, and the method includes:

s110, determining a resource subset according to a first parameter or a first rule, wherein a high layer selects a resource for Physical side link shared Channel (PSCCH) or Physical side link Control Channel (PSCCH) transmission from the resource subset;

the first parameter includes at least one of:

at least one Reference Signal Received Power (RSRP) threshold list comprising RSRP thresholds for each priority combination;

at least one preemption-enabling parameter;

In the embodiment of the present invention, the first parameters respectively include a resource exclusion condition and a preemption enabling parameter in a resource exclusion process, the first rule is a resource exclusion principle in the resource exclusion process, wherein corresponding first parameters or first rules may be respectively configured corresponding to different resource selection manners, and when a resource subset is determined by using the corresponding first parameters or first rules, a terminal performing resource selection in a perceptual manner can more easily exclude resources selected by a terminal using autonomous resource selection, so as to reduce resource collision probability.

In order to clearly illustrate a specific manner of using the resource determining method according to the embodiment of the present invention, an autonomous resource selecting manner that may be used by a terminal according to the embodiment of the present invention is described below.

As shown in fig. 2, when selecting a resource based on sensing, the sensing is performed by using the resource in the sensing window (sensing window) to determine the resource to be selected in the resource selection window (selection window), and the specific process is as follows:

resource selection window and perception window determination: as shown in FIG. 2, if resource selection is triggered at time n, the resource selection window is [ n + T ]₁,n+T₂]The sensing window is [ n-T ]₀,n-T_proc,0](ii) a Wherein, T₁And T₂Respectively, at a time instant T after the time instant n₀And T_procRespectively, at a time before time n.

And (3) a perception process: the PSCCH sent by other terminals is demodulated in a sensing window, and RSRP information is collected;

and (3) resource elimination process:

V2X is half duplex, and the UE cannot monitor in its own transmission timeslot, so it can only be assumed that one or more resources reserved by other UEs in all possible periods configured by the system in the timeslot overlap with the candidate resources in the resource selection window or the periodically reserved resources after the candidate resources, and the resources are excluded;

decoding the occupied resource and the subsequent reserved resource for one or more times indicated by the SCI, overlapping with the candidate resource in the resource selection window or the reserved resource for one or more times after the candidate resource, and if the RSRP is higher than a certain threshold value, excluding the resource;

if the residual resources in the resource selection window are smaller than the preset percentage value (such as X%) of the full set, the RSRP threshold value is improved by 3dB, and the resource elimination step is repeated;

the available candidate set of one-slot resources is reported to a Media Access Control (MAC) layer, which performs random selection.

The resource selection process of the perception mode is a whole perception resource selection process, and all resources in the perception window are used for perception, and the resources are selected from all resources in the resource selection window.

In addition, the resource selection process of the perception mode also comprises a part of perception resource selection mode. In the partial sensing resource selection mode, the resource selection window and the resources used for resource selection in the sensing window are all the resource selection windows in the whole sensing resource selection mode and the subsets of the resources in the sensing window.

The autonomous resource selection mode possibly adopted by the terminal can also comprise a random resource selection mode, the random resource selection mode does not need to execute a sensing process, the terminal directly forms an available candidate single-time-slot resource set and reports the available candidate single-time-slot resource set to the MAC layer, and the MAC layer selects random resources.

In addition, it should be noted that, during resource selection, NR V2X supports resource preemption pre-empt, that is, after a sending end sends SCI to perform resource reservation and before transmission, based on an updated sensing result, if SCI sent by other terminals is sensed and a certain condition is met, the sending end may preempt pre-empt for transmission that has not been performed, and perform resource reselection, so as to avoid interference to other terminals.

The specific implementation mode is as follows:

if the higher layer requesting terminal determines the subset of resources, the higher layer will select resources from the subset of resources for PSSCH/PSCCH transmission as part of the preemption process and will provide a set of resources (r'₀,r′₁,r′₂,…)；

Terminating at r ″)_i-T₃(r″_iIs (r'₀,r′₁,r′₂…), the slot of the smallest slot index) to obtain the available candidate single-slot resource set reported to the MAC layer, where T3 is the processing time agreed by the protocol or (pre-) configured; if (r'₀,r′₁,r′₂…) of a resource r'_iSince the first condition is not among the set of available candidate single-slot resources reported to the MAC layer, (optionally, the first condition is that in the first slot

Received SCI and hypothesis in time slot

Slot and Resource Block (RB), and r 'determined by the received SCI'_iOr r'_iThe reserved resources in the subsequent period are overlapped, the RSRP is greater than a certain threshold, the priority of the received SCI indication is lower than the priority of the data sent by the terminal, and the priority of the received SCI indication is greater than the configured threshold), the terminal reports the resource r'_iPreemption is given to higher layers. Wherein, the threshold value can be configured by RRC parameter; optionally, the above threshold of the RRC parameter configuration may also be referred to as a preemption-enabling parameter.

It should be noted that the above-mentioned random resource selection manner, partial sensing resource selection manner, and all sensing resource selection manners are merely examples of autonomous resource selection manners that may be adopted, and are not limited thereto.

When the terminal selects a part of sensing modes, the number of time slots needing sensing and the number of candidate single-time-slot resources are less than the number of resources of all sensing resource selection modes, so that the resource collision probability is increased compared with all sensing resource selection modes, and when the terminal selects a random resource selection mode, because sensing is not needed at all, an available candidate single-time-slot resource set is directly constructed and reported to an MAC layer, and random selection is performed by the MAC layer, so that the probability of resource collision is highest.

Based on the above-mentioned multiple resource selection manners, the resource determining method according to the embodiment of the present invention configures the first parameter or the first rule for resource selection, so that when different resource selection manners are selected, different first parameters or different first rules are adopted to determine the resource subset, so that the terminal performing resource selection in a perceptual manner can more easily exclude the resource selected by the terminal using autonomous resource selection.

In step S110, when the terminal determines the resource subset according to a first parameter, the first parameter is provided by a network-side high-level configuration parameter, or is provided by pre-configuration, or is agreed by a protocol;

Optionally, the network side higher layer configuring the first parameter includes, but is not limited to, being capable of only including at least one of a System Information Block (SIB), a Radio Resource Control (RRC) message, and a Medium Access Control (MAC) message.

It should be noted that, the "different" RSRP threshold list, the first value, and the preemption enabling parameter refer to that the higher layer configures, or pre-configures, or the protocol agrees on the above first parameter, which is a different Information Element (IE), or at least two values agreed on by the protocol, but the values are not necessarily different, and may be the same or different.

Optionally, the first information includes at least one of:

a resource selection mechanism;

the format of the received direct link control information SCI;

radio Network Temporary Identity (RNTI) for scrambling Cyclic Redundancy Check (CRC) of received direct link control information (SCI).

In this embodiment of the present invention, optionally, the resource selection mechanism includes at least one of random resource selection, partial sensing, full sensing, and other mechanisms besides random resource selection and partial sensing.

Wherein the resource selection mechanism may be determined by at least one of:

the format of the received direct link control information SCI;

and scrambling RNTI of CRC of the received direct link control information SCI.

In this embodiment of the present invention, optionally, the second information is used to determine a resource selection mechanism; or

The second information is for determining that a first RSRP threshold used in a resource exclusion procedure is included in one of the at least one list of RSRP thresholds; alternatively, the first and second electrodes may be,

the second information is used for determining that a first step size used in a resource exclusion process is one of the at least one first value; alternatively, the first and second electrodes may be,

In the embodiment of the present invention, in the configured first parameter, the RSRP threshold list includes RSRP thresholds corresponding to each priority combination. Specifically, each RSRP threshold in the RSRP threshold list corresponds to a priority combination (p)_i,p_j) Wherein p is_iA value for a priority field in the received SCI format; p is a radical of_jAnd selecting the priority of the resources for the terminal to transmit.

Optionally, different resource selection manners configure corresponding different RSRP threshold lists, respectively. For example, the different resource selection manners include, but are not limited to, only a random resource selection manner, a partial sensing resource selection manner, and other resource selection manners (e.g., all sensing resource selection manners may be included).

In the embodiment of the invention, in order to ensure that a terminal using a partial sensing resource selection mode and a terminal using other resource selection modes can eliminate resources selected by a terminal using a random resource selection mode more easily, and reduce the resource collision probability, when a first priority value of a priority domain in an SCI format and a second priority value of a priority for transmission of terminal selection resources are corresponded to RSRP threshold lists respectively corresponding to different resource selection modes, a first RSRP threshold value is configured in the RSRP threshold list corresponding to the random resource selection mode, a second RSRP threshold value is configured in the RSRP threshold list corresponding to the partial sensing resource selection mode, and a third RSRP threshold value is configured in the RSRP threshold lists corresponding to other resource selection modes.

In addition to configuring different RSRP threshold lists according to the different resource selection mechanisms, different RSRP threshold lists may be configured according to at least one of the second information contained in the received SCI, the format of the SCI, and the RNTI scrambling the CRC of the received SCI.

With the resource determination method according to the embodiment of the present invention, in step S110, in the process of determining the resource subset by the terminal according to the first parameter:

And when determining the resource subset, the terminal determines the resource subset according to the excluded candidate single-slot resource meeting the first condition.

Specifically, in the method for determining resources according to the embodiment of the present invention, in the process of determining the resource subset and excluding the candidate single slot resource, according to one RSRP threshold list corresponding to or determined by the first information, the reference signal received power of the SCI is compared with the RSRP threshold (the first RSRP threshold) in the one RSRP threshold list, so as to determine whether the candidate single slot resource satisfies the first condition for resource exclusion.

In another embodiment, for the first value in the first parameter, that is, the increased value of the RSRP threshold in the step of determining the resource subset by the terminal, different first information corresponds to different first values.

Specifically, in the process of resource selection, a first set a is initialized to all candidate menu time slot resources, wherein the total number of the candidate menu time slot resources is M;

wherein the first step size is: one of the at least one first value corresponding to or determined by the first information.

Optionally, the resources in the first set a are resources within a resource selection window.

By adopting the embodiment, according to at least one RSRP threshold list in the first parameter and the first information, when one of the RSRP threshold list and the first information is determined to be a received SCI or a resource selection mode is selected, the RSRP threshold list is used for RSRP threshold determination during resource determination; at least one RSRP threshold list in the first parameter may also be directly determined as an RSRP threshold list for RSRP threshold determination in resource determination.

Therefore, the RSRP threshold list may be an RSRP threshold list corresponding to the first information or determined by the first information, or may be at least one RSRP threshold list included in the first parameter.

In particular according to the above-mentioned priority combinations (p)_i,p_j) And determining one RSRP threshold in the RSRP threshold list as a first RSRP threshold.

Further, the terminal determines the added value of the RSRP threshold, that is, the first step size, in the resource subset determining step, according to the mode corresponding to the first information, or directly according to the indication of the first information.

For example, when different resource selection mechanisms, or different second information contained in the received SCI, or different SCI formats, or different RNTIs scrambling CRC of the received SCI are different, the selected first value is different, for example, for the random resource selection mode, the first value is 0dB, and for other resource selection modes, the second value is 3 dB. For another example, when the second information included in the SCI is 0 or 00, the first value is 0dB, and when the second information included in the SCI is another value, the first value is 3 dB. In this embodiment, the first value includes at least two.

The above manner for selecting the first value according to different resource selection mechanisms or different second information contained in the received SCI is only an example, and is not particularly limited thereto, and the manner for selecting the first value when the RNTIs of CRCs of different SCI formats and scrambled received SCIs are different can be referred to above, and is not illustrated here. In this embodiment of the present invention, optionally, the second value is a predetermined percentage value, and is used in the step of determining the resource subset by the terminal, where the number of the remaining candidate single slot resources is compared with a product of the total number M of the candidate single slot resources and the second value, to determine whether the RSRP threshold needs to be increased, and then the step of removing the resource is repeated.

In another embodiment, in the process of determining the resource subset by the terminal according to the first parameter:

With this embodiment, in the step of determining the resource subset by the terminal, a corresponding RSRP threshold list may be determined according to the first information, and the RSRP threshold in the determined RSRP threshold list is increased by a first step length, where the first step length selects one of at least one first value in the first parameter. In this embodiment, the first value may be only one, and RSRP thresholds in other configured RSRP threshold lists are not increased except for the corresponding RSRP threshold list determined by the first information

In the embodiment of the present invention, optionally, for different resource selection manners, different first values may be determined in a manner of protocol agreement, configuration, or pre-configuration. For example, for the random resource selection mode, the first value is 0dB, for the partial sensing resource selection mode, the first value is 2dB, and for the other resource selection modes, the second value is 3 dB.

Optionally, in another embodiment, in the step of determining the resource subset by the terminal, after the terminal excludes the one-slot resource satisfying the first condition from the first set a, if the number of remaining candidate one-slot resources in the first set a is less than a product of the total number M of candidate one-slot resources and a second value, increasing an RSRP threshold in an RSRP threshold list corresponding to the first information by a first step, where the RSRP threshold list does not include an RSRP threshold configured for the random resource selection manner. For example, the RSRP threshold list is an RSRP threshold list corresponding to other resource selection manners except for the random resource selection manner, or an RSRP threshold list when the second information included in the received SCI is the second preset information or the second preset value, and the like.

The second preset information or the second preset value is preset field information or a preset numerical value, wherein the first information is used for indicating other resource selection modes except the random resource selection mode. Further, optionally, in the embodiment of the present invention, the first parameter further includes at least one preemption enabling parameter, that is, a threshold value for resource preemption. Wherein different first information may correspond to different preemption-enabling parameters.

In another implementation manner of the resource determining method according to the embodiment of the present invention, in the process of determining the resource subset, according to the first rule, the terminal:

the second condition includes at least one of:

the first method comprises the following steps: receiving resource blocks and time slots determined by the format of the SCI received in the first time slot, or receiving the resource blocks and the time slots determined by the SCI format which is the same as the format of the SCI received in the first time slot in the second time slot set, wherein the resource blocks and the time slots are overlapped with resources determined according to candidate single-slot resources and/or a source reservation period;

and the second method comprises the following steps: receiving resource blocks and slots determined by the format of SCI received in a first slot, or receiving resource blocks and slots determined by the format of SCI received in the first slot in a second slot set, wherein the resource blocks and slots are overlapped with resources determined according to candidate single-slot resources and/or source reservation periods, and the RSRP measurement for the SCI is higher than a first RSRP threshold value;

Specifically, the second condition described above is different for different resource selection methods.

For example, when different resource selection mechanisms, or different second information contained in the received SCI, or different SCI formats, or different RNTIs scrambling CRC of the received SCI are different, the selected second condition is different, and one of the first and second conditions may be selected respectively. For example, for a random resource selection approach, a first one of the second conditions may be selected; for other resource selection approaches, a second one of the second conditions may be selected. For another example, when the second information included in the SCI is 0 or 00, the first of the second conditions may be selected; a second type of second condition may be selected when the second information contained in the SCI is another value.

The above-mentioned manner for selecting the second condition according to different resource selection mechanisms or different second information contained in the received SCI is only an example, and is not particularly limited thereto, and the manner for selecting the second condition when the RNTIs of CRCs of different SCI formats and scrambled received SCIs are different can be referred to above, and is not illustrated here.

Further, it should be noted that, in the process of determining the resource subset by the terminal according to the first rule, the candidate single-slot resource is determined by combining the first condition and the second condition, which are two different aspects for resource exclusion in the resource exclusion process.

Optionally, the resource determining method further includes:

third information indicating a priority of the candidate single slot resource;

Optionally, the first preset information or the first preset value is preset field information used by the first information to indicate a random resource selection manner or a preset value.

Specifically, when reporting the candidate single-slot resource set to the high level, the terminal reports third information for each candidate single-slot resource of the candidate single-slot resource set, where the third information is used to indicate the priority of the corresponding candidate single-slot resource; or reporting fourth information, configured to indicate whether a corresponding candidate single-slot resource overlaps with a first resource, where the first resource is: the SCI format received in the first slot, or assuming the same SCI format received in the second set of slots.

In this embodiment of the present invention, optionally, the resource selection mechanism may be determined by at least one of the following manners:

the format of the received direct link control information SCI;

and scrambling RNTI of CRC of the received direct link control information SCI.

Wherein, when the resource selection mechanism is indicated by the second information contained in the received SCI, the second information may be information for indicating the resource selection mechanism.

Alternatively, the second information may be an indication of an increase in SCI. For example, a reserved bit field in SCI format 1-a is used, or a specific indication field is added to indicate the resource selection manner used for the transmission, where the indication manner of the reserved bit field or the specific indication field may be as shown in the following table:

when the resource selection mechanism is indicated by the format of the received SCI, different resource selection mechanisms may be indicated by way of different SCI formats, for example: when the terminal uses the random resource selection mode, using a first SCI format indication, when the terminal uses the partial sensing resource selection mode, using a second SCI format indication, and when other resource selection modes are used, using a third SCI format; or, when the terminal uses the random resource selection mode, the first SCI format is used, and when other resource selection modes are used, the second SCI format is used.

When the RNTI indication of CRC of received SCI is scrambled, the scrambling mode of SCI can be different by different RNTI; for example, the way of scrambling SCI with different RNTIs is as follows: when the terminal uses a random resource selection mode, scrambling is carried out by using a first RNTI, when a partial sensing resource selection mode is used, scrambling is carried out by using a second RNTI, and when other resource selection modes are used, scrambling is carried out by using a third RNTI; or, when the terminal uses the random resource selection mode, the terminal uses the first SCI format for scrambling, and when the terminal uses other resource selection modes, the terminal uses the second RNTI for scrambling.

In this embodiment of the present invention, optionally, the SCI includes SCI format 1 or SCI format 2.

It should be noted that, in the embodiment of the present invention, optionally, other resource selection manners may be described as if the terminal is not configured or does not use the partial sensing manner and the random resource selection manner.

According to the resource determining method, the terminal can select the resources by adopting the corresponding first parameter or first rule according to the determined resource selection mode through the first parameter or first rule for resource selection, so that the terminal which selects the resources in a perception mode can easily exclude the resources selected by the terminal which selects the autonomous resources, the resource collision probability is reduced, and the reliability of data transmission is improved.

Another aspect of the embodiments of the present invention further provides a resource allocation method, which is applied to a base station, and as shown in fig. 3, the method includes:

s310, configuring a first parameter and/or a first rule; the terminal determines a resource subset according to a first parameter or a first rule;

the first parameter includes at least one of:

at least one preemption-enabling parameter;

a resource selection mechanism;

the format of the direct link control information SCI received by the terminal;

An embodiment of the present invention further provides a resource determining apparatus, which is applied to a terminal, and as shown in fig. 4, the apparatus includes:

a determining module 410, configured to determine a resource subset according to a first parameter or a first rule, wherein a higher layer selects resources for physical side link shared channel PSCCH or physical side link control channel PSCCH transmission from the resource subset;

the first parameter includes at least one of:

at least one preemption-enabling parameter;

Optionally, in the resource determining apparatus, when the determining module 410 determines the resource subset according to a first parameter, the first parameter is provided by a network-side higher-layer configuration parameter, or is provided by pre-configuration, or is agreed by a protocol;

Optionally, the resource determining apparatus, wherein, in the process of determining the resource subset by the determining module 410 according to the first parameter:

Optionally, the resource determining apparatus, wherein, in the process of determining the resource subset by the determining module 410 according to the first rule:

the determining module 410 excludes candidate single-slot resources that satisfy a second condition corresponding to or determined by the first information;

the second condition includes at least one of:

Optionally, the resource determining apparatus, wherein,

the first information includes at least one of:

a resource selection mechanism;

the format of the received direct link control information SCI;

and scrambling RNTI of CRC of the received direct link control information SCI.

Optionally, the resource determining apparatus, wherein the resource selection mechanism includes at least one of random resource selection, partial sensing, full sensing, and other mechanisms besides random resource selection and partial sensing.

Optionally, the resource determining apparatus may determine the resource selection mechanism by at least one of:

the format of the received direct link control information SCI;

and scrambling RNTI of CRC of the received direct link control information SCI.

Optionally, the resource determining apparatus, wherein,

Optionally, the resource determining apparatus, wherein the determining module 410 is further configured to:

third information indicating a priority of the candidate single slot resource;

An embodiment of the present invention further provides a resource allocation apparatus, which is applied to a base station, and as shown in fig. 5, the apparatus includes:

a configuration module 510 for configuring a first parameter and/or a first rule; the terminal determines a resource subset according to a first parameter or a first rule;

the first parameter includes at least one of:

at least one preemption-enabling parameter;

Optionally, the resource configuration apparatus, wherein the first parameter is provided by a network-side higher-layer configuration parameter;

Optionally, the resource configuration apparatus, wherein the first rule includes a second condition, and the second condition includes at least one of:

Optionally, the resource configuration apparatus, wherein the first information includes at least one of:

a resource selection mechanism;

the format of the direct link control information SCI received by the terminal;

Optionally, the resource configuration apparatus, wherein the resource selection mechanism includes at least one of random resource selection, partial sensing, full sensing, and other mechanisms except for random resource selection and partial sensing.

Optionally, the resource configuration apparatus, wherein the second information is used to indicate a resource selection mechanism; or

Another aspect of the embodiments of the present invention further provides a network device, where the network device is a terminal, as shown in fig. 6, and the network device includes: a processor 601; and a memory 603 connected to the processor 601 through a bus interface 602, where the memory 603 is used for storing programs and data used by the processor 601 when executing operations, and the processor 601 calls and executes the programs and data stored in the memory 603.

The transceiver 604 is connected to the bus interface 602, and is configured to receive and transmit data under the control of the processor 601, and specifically, the processor 601 is configured to read a program in the memory 603 and execute the following processes:

the first parameter includes at least one of:

at least one preemption-enabling parameter;

Optionally, in the network device, when the processor 601 determines the resource subset according to a first parameter, the first parameter is provided by a network-side higher-layer configuration parameter, or is provided by pre-configuration, or is a protocol agreement;

Optionally, in the network device, in the process of determining the resource subset by the processor 601 according to the first parameter:

Optionally, in the network device, in the process of determining the resource subset by the processor 601 according to the first rule:

the second condition includes at least one of:

Optionally, the network device, wherein the first information includes at least one of:

a resource selection mechanism;

the format of the received direct link control information SCI;

and scrambling RNTI of CRC of the received direct link control information SCI.

Optionally, the network device, wherein the resource selection mechanism includes at least one of random resource selection, partial awareness, full awareness, and other mechanisms besides random resource selection and partial awareness.

Optionally, the network device, wherein the resource selection mechanism may be determined by at least one of:

the format of the received direct link control information SCI;

and scrambling RNTI of CRC of the received direct link control information SCI.

Optionally, the network device, wherein,

Optionally, in the network device, the processor 601 is further configured to:

third information indicating a priority of the candidate single slot resource;

It should be noted that in fig. 6, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 601 and various circuits of memory represented by memory 603 being linked together. 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 604 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different terminals, the user interface 605 may also be an interface capable of interfacing with desired devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, etc. The processor 601 is responsible for managing the bus architecture and general processing, and the memory 603 may store data used by the processor 601 in performing operations.

Another aspect of the embodiments of the present invention further provides a network device, where the network device may be a base station, as shown in fig. 7, and the network device includes: a processor 701; and a memory 703 connected to the processor 701 through a bus interface 702, where the memory 703 is used to store programs and data used by the processor 701 in executing operations, and the processor 701 calls and executes the programs and data stored in the memory 703.

The transceiver 704 is connected to the bus interface 702, and is configured to receive and transmit data under the control of the processor 701, and specifically, the processor 701 is configured to read a program in the memory 703 and execute the following processes:

the first parameter includes at least one of:

at least one preemption-enabling parameter;

Optionally, the network device, wherein the first parameter is provided by a network-side higher-layer configuration parameter;

Optionally, the network device, wherein the first rule includes a second condition, and the second condition includes at least one of:

a resource selection mechanism;

the format of the direct link control information SCI received by the terminal;

Optionally, the network device, wherein the second information is used to indicate a resource selection mechanism; or

Where in fig. 7 the bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented by processor 701 and various circuits of memory represented by memory 703 are linked together. 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 704 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The processor 701 is responsible for managing the bus architecture and general processing, and the memory 703 may store data used by the processor 701 in performing operations.

In addition, the specific embodiment of the present invention further provides a computer readable storage medium, on which a computer program is stored, where the program, when executed by a processor, implements the resource determination method as described in any one of the above or implements the steps in the resource configuration method as described in any one of the above.

Specifically, the computer-readable storage medium is applied to the terminal or the base station described above, and when applied to the terminal, the execution steps in the corresponding resource determination method are as described in detail above; when applied to the base station, the execution steps in the corresponding resource allocation method are described in detail above, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the transceiving method according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

While the preferred embodiments of the present invention have been described, 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.

Claims

1. A resource determination method is applied to a terminal, and is characterized in that the method comprises the following steps:

the first parameter includes at least one of:

at least one preemption-enabling parameter;

2. The method according to claim 1, wherein when the terminal determines the resource subset according to the first parameter, the first parameter is provided by a network-side higher-layer configuration parameter, or is provided by pre-configuration, or is agreed by a protocol;

3. The method according to claim 1, wherein in the process of determining the resource subset by the terminal according to the first parameter:

4. The method according to claim 1, wherein in the process of determining the resource subset by the terminal according to the first parameter:

5. The method according to claim 1, wherein in the process of determining the resource subset by the terminal according to the first parameter:

6. The resource determining method according to claim 1, wherein in the process of determining the resource subset by the terminal according to the first rule:

the second condition includes at least one of:

7. The resource determination method according to any one of claims 2 to 6,

the first information includes at least one of:

a resource selection mechanism;

the format of the received direct link control information SCI;

and scrambling RNTI of CRC of the received direct link control information SCI.

8. The method of claim 7, wherein the resource selection mechanism comprises at least one of random resource selection, partial awareness, full awareness, and other mechanisms besides random resource selection and partial awareness.

9. The method of claim 7, wherein the resource selection mechanism is determined by at least one of:

the format of the received direct link control information SCI;

and scrambling RNTI of CRC of the received direct link control information SCI.

10. The resource determination method according to claim 7 or 9,

11. The method of claim 1, further comprising:

third information indicating a priority of the candidate single slot resource;

12. A resource allocation method is applied to a base station, and is characterized in that the method comprises the following steps:

the first parameter includes at least one of:

at least one preemption-enabling parameter;

13. The method according to claim 12, wherein the first parameter is provided by a network-side higher layer configuration parameter;

14. The method of claim 12, wherein the first rule comprises a second condition, and wherein the second condition comprises at least one of:

15. The method according to claim 13, wherein the first information comprises at least one of:

a resource selection mechanism;

the format of the direct link control information SCI received by the terminal;

16. The method according to claim 15, wherein the resource selection mechanism comprises at least one of random resource selection, partial awareness, full awareness, and other mechanisms besides random resource selection and partial awareness.

17. The method of claim 15, wherein the second information is used to determine a resource selection mechanism; or

18. A resource determination device applied to a terminal, the device comprising:

the first parameter includes at least one of:

at least one preemption-enabling parameter;

19. A resource allocation device applied to a base station, the device comprising:

the first parameter includes at least one of:

at least one preemption-enabling parameter;

20. A network device, comprising: a processor, a memory and a program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the resource determination method of any one of claims 1 to 11 or implementing the resource configuration method of any one of claims 12 to 17.

21. A readable storage medium, characterized in that the readable storage medium has stored thereon a program which, when being executed by a processor, carries out the steps in the resource determination method according to any one of claims 1 to 11, or carries out the steps in the resource configuration method according to any one of claims 12 to 17.