Resource determination method, resource configuration method and apparatus

Abstract

The present invention provides a resource determination method, a resource configuration method and an apparatus. The method includes: determining a resource subset according to a first parameter or a first rule, wherein a higher layer selects a resource from the resource subset for transmission of a physical sidelink shared channel (PSSCH) or a physical sidelink control channel (PSCCH); the first parameter includes at least one of the following: at least one reference signal received power (RSRP) threshold list, the RSRP threshold list including RSRP thresholds for each priority combination; at least one first value, the first value being an increment value of the RSRP threshold in the step of the terminal determining the resource subset; at least one preemption enabling parameter; the first rule includes: conditions for at least one terminal to exclude candidate single-slot resources.

Description

Technical Field

[0001] This invention relates to the field of wireless technology, and in particular to a resource determination method, resource allocation method, and apparatus. Background Technology

[0002] New Radio (NR) Vehicle to Everything (V2X) supports two resource allocation modes: Mode-1 and Mode-2. Mode-1 is a base station-controlled resource allocation mode, while Mode-2 is a terminal-autonomous resource allocation mode. Mode-2 resource selection is a "listen-before-send" mode, which uses resources within the sensing window to determine the resources to select in the selection window.

[0003] Currently, resource selection for Mode-2 includes full perception mode, partial perception mode, and autonomous resource selection mode. In partial perception mode, the resource selection window and perception window are a subset of the corresponding resource selection window and perception window in full perception mode. In autonomous resource selection mode, the terminal does not need to perform a perception process, but directly forms a set of available candidate single time slot resources, reports it to the MAC layer, and the MAC performs random resource selection.

[0004] Since the terminal has multiple autonomous resource allocation modes, when the terminal selects a partial sensing mode, the number of time slots that the terminal needs to sense and the number of candidate single time slot resources are reduced compared to the full sensing mode, which may increase the probability of resource collisions. In addition, when the terminal selects the autonomous resource selection mode, since there is no need to perform the sensing process at all, the available candidate single time slot resource set is directly constructed and reported to the MAC layer, and the MAC layer makes a random selection, so the probability of resource collisions is the highest.

[0005] Currently, there are situations where different resource selection methods coexist in the same resource pool. In this case, it is essential to protect the resources selected by terminals using autonomous resource selection from interference and reduce the probability of resource collisions in order to improve transmission reliability. Summary of the Invention

[0006] The purpose of this invention is to provide a resource determination method, resource allocation method, and apparatus for resource selection when multiple resource selection methods coexist, thereby avoiding resource collision problems.

[0007] This invention provides a resource determination method applied to a terminal, wherein the method includes:

[0008] Based on the first parameter or the first rule, a resource subset is determined, wherein the higher layer selects resources from the resource subset for transmission of the Physical Side Link Shared Channel (PSSCH) or the Physical Side Link Control Channel (PSCCH).

[0009] The first parameter includes at least one of the following:

[0010] At least one reference signal received power (RSRP) threshold list, the RSRP threshold list including RSRP thresholds for each priority combination;

[0011] At least one first value, wherein the first value is the increment of the RSRP threshold in the terminal determining resource subset step;

[0012] At least one preemption enable parameter;

[0013] The first rule includes: at least one terminal excluding candidate single-slot resources.

[0014] Optionally, in the resource determination method, when the terminal determines a subset of resources based on the first parameter, the first parameter is provided by a higher-layer configuration parameter on the network side, or by a pre-configuration, or by a protocol agreement;

[0015] Different first information corresponds to different RSRP threshold lists, or different first values, or different preemption enable parameters.

[0016] Optionally, in the resource determination method, during the process of the terminal determining a subset of resources based on the first parameter:

[0017] The terminal excludes candidate single-slot resources that meet the first condition;

[0018] The first condition includes at least: the reference signal received power (RSRP) measurement for the received pass-through control information (SCI) is higher than a first RSRP threshold.

[0019] The first RSRP threshold is included in one of the at least one RSRP threshold lists, wherein the RSRP threshold list corresponds to or is determined by the first information.

[0020] Optionally, in the resource determination method, during the process of the terminal determining a subset of resources based on the first parameter:

[0021] The first set A is initialized with all candidate single-slot resources, where the total number of candidate single-slot resources is M;

[0022] After the terminal excludes single-slot resources that meet the first condition from the first set A, if the number of remaining candidate single-slot resources in the first set A is less than the product of the total number of candidate single-slot resources M and the second value, then the RSRP threshold in the RSRP threshold list is increased by the first step length.

[0023] The first step length is: one of the first values ​​corresponding to the first information or the RSRP threshold list, or determined by the first information.

[0024] Optionally, in the resource determination method, during the process of the terminal determining a subset of resources based on the first parameter:

[0025] The first set A is initialized with all candidate single-slot resources, and the total number of candidate single-slot resources is M;

[0026] After the terminal excludes single-slot resources that meet the first condition from the first set A, if the number of remaining candidate single-slot resources in the first set A is less than the product of the total number of candidate single-slot resources M and the second value, then the RSRP threshold in the RSRP threshold list corresponding to the first information is increased by a first step length, wherein the first step length is one of the at least one first value.

[0027] Optionally, in the resource determination method, during the process of the terminal determining a subset of resources according to the first rule:

[0028] The terminal excludes candidate single-slot resources that meet the second condition, which is either corresponding to the first information or determined by the first information.

[0029] The second condition includes at least one of the following:

[0030] The resource blocks and time slots determined by the format of the SCI received in the first time slot, or the resource blocks and time slots determined by the format of the SCI received in the second time slot set that are the same as those of the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or the source reservation period.

[0031] The resource block and time slot determined by the format of the SCI received in the first time slot, or the resource block and time slot determined by the format of the SCI received in the second time slot set that is the same as the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or source reservation period, and the RSRP measurement for the SCI is higher than the first RSRP threshold.

[0032] The second time slot set is determined based on the resource reservation period indicated by the first time slot and / or the SCI.

[0033] Optionally, in the resource determination method, wherein,

[0034] The first information includes at least one of the following:

[0035] Resource selection mechanism;

[0036] The second information contained in the received direct link control information (SCI);

[0037] The format of the received SCI (Straight-through Link Control Information);

[0038] The RNTI of the CRC of the scrambled received direct link control information (SCI).

[0039] Optionally, in the resource determination method, 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.

[0040] Optionally, in the resource determination method, the resource selection mechanism can be determined in at least one of the following ways:

[0041] The second information contained in the received direct link control information (SCI);

[0042] The format of the received SCI (Straight-through Link Control Information);

[0043] The RNTI of the CRC of the scrambled received direct link control information (SCI).

[0044] Optionally, in the resource determination method, wherein,

[0045] The second information is used to determine the resource selection mechanism; or

[0046] The second information is used to determine whether the first RSRP threshold is included in one of the RSRP threshold lists in the at least one RSRP threshold list; or,

[0047] The second information is used to determine that the length of the first step is one of the at least one first value; or,

[0048] The second information is used to determine whether the terminal will increase at least one RSRP threshold in the RSRP threshold list by a first step length; or,

[0049] The second information is used to determine the preemption enable parameters; or

[0050] The second information is used to determine the conditions for the terminal to exclude candidate single-slot resources.

[0051] Optionally, the resource determination method further includes:

[0052] The terminal reports at least one of the following information to higher management:

[0053] Third information used to indicate the priority of candidate single-slot resources;

[0054] The fourth information is used to indicate whether a candidate single time slot resource overlaps with a first resource; wherein the first resource is: the resource block and time slot determined by the received SCI when the first information is a first preset information or a first preset value.

[0055] Another aspect of this invention provides a resource allocation method, wherein the method includes:

[0056] Configure a first parameter and / or a first rule; wherein, the terminal determines a subset of resources based on the first parameter or the first rule;

[0057] The first parameter includes at least one of the following:

[0058] At least one reference signal received power (RSRP) threshold list, the RSRP threshold list including RSRP thresholds for each priority combination;

[0059] At least one first value, wherein the first value is the increment of the RSRP threshold in the terminal determining resource subset step;

[0060] At least one preemption enable parameter;

[0061] The first rule includes: at least one terminal excluding candidate single-slot resources.

[0062] Optionally, in the resource configuration method, the first parameter is provided by higher-layer configuration parameters on the network side;

[0063] Different first information corresponds to different RSRP threshold lists, or different first values, or different preemption enable parameters.

[0064] Optionally, in the resource allocation method, the first rule includes a second condition, and the second condition includes at least one of the following:

[0065] The resource blocks and time slots determined by the format of the SCI received in the first time slot, or the resource blocks and time slots determined by the format of the SCI received in the second time slot set having the same format as the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or source reservation period.

[0066] The resource block and time slot determined by the format of the SCI received in the first time slot, or the resource block and time slot determined by the format of the SCI received in the second time slot set having the same format as the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or source reservation period, and the RSRP measurement for the SCI is higher than the first RSRP threshold.

[0067] The second time slot set is determined based on the resource reservation period indicated by the first time slot and / or the SCI.

[0068] Optionally, in the resource allocation method, the first information includes at least one of the following:

[0069] Resource selection mechanism;

[0070] The second information contained in the SCI (Straight-through Link Control Information) received by the terminal;

[0071] The format of the SCI (Straight-through Link Control Information) received by the terminal;

[0072] The RNTI of the CRC of the SCI received by the terminal after scrambling.

[0073] 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 besides random resource selection and partial sensing.

[0074] Optionally, in the resource allocation method, the second information is used to determine the resource selection mechanism; or

[0075] The second information is used to determine whether the first RSRP threshold is included in one of the RSRP threshold lists in the at least one RSRP threshold list; or,

[0076] The second information is used to determine that the length of the first step is one of the at least one first value; or,

[0077] The second information is used to determine whether the terminal will increase at least one RSRP threshold in the RSRP threshold list by a first step length; or,

[0078] The second information is used to determine the preemption enable parameters; or

[0079] The second information is used to determine the conditions for the terminal to exclude candidate single-slot resources.

[0080] This invention also provides a resource determination device applied to a terminal, wherein the device includes:

[0081] The determination module is used to determine a subset of resources based on a first parameter or a first rule, wherein the higher layer selects resources from the subset of resources for transmission of the Physical Side Link Shared Channel (PSSCH) or the Physical Side Link Control Channel (PSCCH).

[0082] The first parameter includes at least one of the following:

[0083] At least one reference signal received power (RSRP) threshold list, the RSRP threshold list including RSRP thresholds for each priority combination;

[0084] At least one first value, wherein the first value is the increment of the RSRP threshold in the terminal determining resource subset step;

[0085] At least one preemption enable parameter;

[0086] The first rule includes: at least one terminal excluding candidate single-slot resources.

[0087] This invention also provides a resource allocation device applied to a base station, wherein the device includes:

[0088] A configuration module is used to configure a first parameter and / or a first rule; wherein, the terminal determines a subset of resources based on the first parameter or the first rule;

[0089] The first parameter includes at least one of the following:

[0090] At least one reference signal received power (RSRP) threshold list, the RSRP threshold list including RSRP thresholds for each priority combination;

[0091] At least one first value, wherein the first value is the increment of the RSRP threshold in the terminal determining resource subset step;

[0092] At least one preemption enable parameter;

[0093] The first rule includes: at least one terminal excluding candidate single-slot resources.

[0094] This invention also provides a network device, comprising: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the resource determination method as described in any of the preceding claims, or implements the resource configuration method as described in any of the preceding claims.

[0095] This invention also provides a readable storage medium, wherein a program is stored on the readable storage medium, and when the program is executed by a processor, it implements the steps in the resource determination method as described in any of the preceding claims, or implements the steps in the resource configuration method as described in any of the preceding claims.

[0096] At least one of the above technical solutions of the present invention has the following beneficial effects:

[0097] The resource allocation method described in this embodiment of the invention, when determining a resource subset using a corresponding first parameter or first rule, enables terminals that select resources in a perceptual manner to more easily exclude resources selected by terminals that use autonomous resource selection, thereby reducing the probability of resource collisions. Attached Figure Description

[0098] Figure 1 This is a flowchart illustrating the resource determination method described in an embodiment of the present invention;

[0099] Figure 2 A schematic diagram of the time slot structure for resource selection based on perception;

[0100] Figure 3 This is a flowchart illustrating the resource allocation method described in an embodiment of the present invention;

[0101] Figure 4 This is a schematic diagram of the resource determination device according to an embodiment of the present invention;

[0102] Figure 5 This is a schematic diagram of the resource allocation device according to an embodiment of the present invention;

[0103] Figure 6 This is a schematic diagram of the structure of the terminal described in an embodiment of the present invention;

[0104] Figure 7 This is a schematic diagram of the base station structure according to an embodiment of the present invention. Detailed Implementation

[0105] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0106] To avoid resource collisions caused by interference when terminals using autonomous resource selection are in the same resource pool with different resource selection methods, this invention provides a resource determination method. By using a first parameter or a first rule for resource selection, the terminal can select resources according to the determined resource selection method, thereby making it easier for terminals that select resources in a sensing manner to exclude resources selected by terminals using autonomous resource selection, thus reducing the probability of resource collisions and improving the reliability of data transmission.

[0107] One embodiment of the present invention provides a resource determination method applied to a terminal, wherein the method includes:

[0108] S110, determine a subset of resources according to the first parameter or the first rule, wherein the higher layer selects resources from the subset of resources for transmission of the Physical Sidelink Shared Channel (PSSCH) or the Physical Sidelink Control Channel (PSCCH).

[0109] The first parameter includes at least one of the following:

[0110] At least one reference signal receiving power (RSRP) threshold list, the RSRP threshold list including RSRP thresholds for each priority combination;

[0111] At least one first value, wherein the first value is the increment of the RSRP threshold in the terminal determining resource subset step;

[0112] At least one preemption enable parameter;

[0113] The first rule includes: at least one terminal excluding candidate single-slot resources.

[0114] In this embodiment of the invention, the first parameter mentioned above includes the resource exclusion condition and the preemption enabling parameter in the resource exclusion process, and the first rule is the resource exclusion principle in the resource exclusion process. Corresponding to different resource selection methods, the corresponding first parameter or first rule can be configured respectively. When the corresponding first parameter or first rule is used to determine the resource subset, the terminal that selects resources in a sensing manner can more easily exclude the resources selected by the terminal that selects resources autonomously, so as to reduce the probability of resource collision.

[0115] To clearly illustrate the specific manner in which the resource determination method described in the embodiments of the present invention is employed, the following will first describe the autonomous resource selection methods that the terminal may adopt in the embodiments of the present invention.

[0116] like Figure 2 As shown, when using perception-based resource selection, the resources in the sensing window are sensed to determine the resources to be selected in the selection window. The specific process is as follows:

[0117] Resource selection window and perception window determined: such as Figure 2 As shown, if resource selection is triggered at time n, the resource selection window is [n+T1, n+T2], and the perception window is [n-T0, nT]. proc,0]; where T1 and T2 are the times after time n, and T0 and T... proc These are the times preceding time n.

[0118] Sensing process: This involves demodulating the PSCCH sent by other terminals within the sensing window and collecting RSRP information.

[0119] Resource exclusion process:

[0120] V2X is half-duplex, and the terminal UE cannot listen in its own transmission time slot. Therefore, it can only be assumed that when the one or more resources reserved by other UEs in the time slot with all possible periods configured by the system overlap with the candidate resources in the resource selection window, or the periodically reserved resources after the candidate resources, the resources are excluded.

[0121] If the resource occupied by the SCI and the subsequent one or more reserved resources overlap with the candidate resources in the resource selection window or the one or more reserved resources after the candidate resources, and the RSRP is higher than a certain threshold, then the resource is excluded.

[0122] If the remaining resources in the resource selection window are less than the preset percentage value of the entire set (e.g., X%), then the RSRP threshold will be increased by 3dB and the resource exclusion step will be repeated.

[0123] The available candidate single-slot resource set is reported to the Media Access Control (MAC) layer, which then makes a random selection.

[0124] The resource selection process of the above-mentioned sensing method is a full sensing resource selection process, which senses all resources in the sensing window and selects resources from all resources in the resource selection window.

[0125] In addition, the resource selection process of the perception method also includes a partial perception resource selection method. In the partial perception resource selection method, the resources used for resource selection in the resource selection window and the perception window are subsets of the resources in the resource selection window and the perception window of the full perception resource selection method.

[0126] The autonomous resource selection method that the terminal may adopt may also include a random resource selection method. This random resource selection method does not require the execution of a sensing process. The terminal directly forms a set of available candidate single time slot resources and reports it to the MAC layer, which then performs random resource selection.

[0127] Additionally, it should be noted that NR V2X supports resource pre-emption during resource selection. That is, after the sender sends an SCI to reserve resources, before transmission, it can pre-empt its own uncompleted transmissions based on the updated sensing results. If it senses an SCI sent by another terminal and meets certain conditions, the sender can reselect resources to avoid interfering with other terminals.

[0128] The specific implementation method is as follows:

[0129] If the higher layer requests the terminal to determine a subset of resources, the higher layer will select resources from the subset of resources for PSSCH / PSCCH transmission. As part of the preemption process, the higher layer will provide a set of resources (r′0,r′1,r′2,…) that may be preempted.

[0130] Terminal at r″ i -T3(r″ i The resource subset determination step is performed on the slot with the smallest slot index in (r′0,r′1,r′2,…), resulting in a set of available candidate single-slot resources reported to the MAC layer, where T3 is the processing time agreed upon by the protocol or (pre)configured; if a resource r′ in (r′0,r′1,r′2,…) is selected, the resource subset determination step is performed to obtain a set of available candidate single-slot resources. i Since the first condition is not in the set of available candidate single-slot resources reported to the MAC layer (optionally, the first condition is: in the first time slot) Received SCIs and hypotheses in time slots The received SCI-determined time slots and resource blocks (RBs), compared with r′ i Or r′ i If the resources reserved in subsequent cycles overlap, and the RSRP is greater than a certain threshold, and 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, then the terminal reports resource r′. i The preemption is granted to higher levels. The aforementioned threshold can be configured via RRC parameters; optionally, the threshold configured via RRC parameters can also be referred to as the preemption enable parameter.

[0131] It should be noted that the random resource selection method, partial sensing resource selection method, and full sensing resource selection method mentioned above are only examples of possible autonomous resource selection methods, and are not limited to these.

[0132] When the terminal selects a partial sensing method, the number of time slots to be sensed and the number of candidate single time slot resources are less than the number of resources in the full sensing resource selection method. Therefore, the probability of resource collision increases compared to the full sensing resource selection method. However, when the terminal selects a random resource selection method, since there is no need to sense at all, a set of available candidate single time slot resources is directly constructed and reported to the MAC layer, which then makes a random selection. Therefore, the probability of resource collision is the highest.

[0133] Based on the various resource selection methods mentioned above, the resource determination method described in this embodiment of the invention configures a first parameter or a first rule for resource selection, so that different first parameters or first rules are used when different resource selection methods are selected to determine a resource subset, so that terminals that select resources in a sensing manner can more easily exclude resources selected by terminals that use autonomous resource selection.

[0134] In step S110, when the terminal determines the resource subset based on the first parameter, the first parameter is provided by the network side higher-layer configuration parameters, or by pre-configuration, or by a protocol agreement.

[0135] Different first information corresponds to different RSRP threshold lists, or different first values, or different preemption enable parameters.

[0136] Optionally, the higher-layer network side configuring the first parameter may include, but is not limited to, at least one of System Information Block (SIB), Radio Resource Control (RRC) messages, and Medium Access Control (MAC) messages.

[0137] It should be noted that "different" RSRP threshold list, the first value and the preemption enable parameter refer to different information elements (IEs) configured, pre-configured or agreed upon by the higher layer or by the protocol for the first parameter, or at least two values ​​agreed upon by the protocol, but the values ​​are not necessarily different, they can be the same or different.

[0138] Optionally, the first information includes at least one of the following:

[0139] Resource selection mechanism;

[0140] The second information contained in the received direct link control information (SCI);

[0141] The format of the received SCI (Straight-through Link Control Information);

[0142] The scrambled received pass-through control information (SCI) is used to obtain the Radio Network Temporary Identity (RNTI) for Cyclic Redundancy Check (CRC).

[0143] In this embodiment of the 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.

[0144] The resource selection mechanism can be determined in at least one of the following ways:

[0145] The second information contained in the received direct link control information (SCI);

[0146] The format of the received SCI (Straight-through Link Control Information);

[0147] The RNTI of the CRC of the scrambled received direct link control information (SCI).

[0148] In this embodiment of the invention, optionally, the second information is used to determine the resource selection mechanism; or

[0149] The second information is used to determine that the first RSRP threshold used in the resource exclusion process includes one of the RSRP threshold lists in the at least one RSRP threshold list; or,

[0150] The second information is used to determine that the length of the first step in the resource exclusion process is one of the at least one first value; or,

[0151] The second information is used to determine whether the terminal will increase at least one RSRP threshold in the RSRP threshold list by a first step length; or,

[0152] The second information is used to determine the preemption enable parameters; or

[0153] The second information is used to determine the conditions for the terminal to exclude candidate single-slot resources.

[0154] In this embodiment of the invention, the configured first parameter includes an RSRP threshold list comprising 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 ), where p i The value of the priority field in the received SCI format; p j Prioritize the resources for transmission to the terminal.

[0155] Optionally, different resource selection methods can be configured with corresponding RSRP threshold lists. For example, different resource selection methods include, but are not limited to, only random resource selection, partially sensed resource selection, and other resource selection methods (such as full sensed resource selection).

[0156] In this embodiment of the invention, to ensure that terminals using partial sensing resource selection and other resource selection methods can more easily exclude resources selected by terminals using random resource selection methods, thereby reducing the probability of resource collisions, in the RSRP threshold lists corresponding to different resource selection methods, when the first priority value of the priority field in the SCI format and the second priority value of the priority of the terminal selecting resources for transmission are considered, a first RSRP threshold is configured in the RSRP threshold list corresponding to the random resource selection method, a second RSRP threshold is configured in the RSRP threshold list corresponding to the partial sensing resource selection method, and a third RSRP threshold is configured in the RSRP threshold list corresponding to other resource selection methods.

[0157] In addition to configuring different RSRP threshold lists according to the different resource selection mechanisms mentioned above, in this embodiment of the invention, different RSRP threshold lists can also be configured according to at least one of the differences in the second information contained in the received SCI, the format of the SCI, and the RNTI of the CRC of the scrambled received SCI.

[0158] Using the resource determination method described in this embodiment of the invention, in step S110, during the process of the terminal determining a resource subset based on the first parameter:

[0159] The terminal excludes candidate single-slot resources that meet the first condition;

[0160] The first condition includes at least: the reference signal received power (RSRP) measurement for the received pass-through control information (SCI) is higher than a first RSRP threshold.

[0161] The first RSRP threshold is included in one of the at least one RSRP threshold lists, wherein the RSRP threshold list corresponds to or is determined by the first information.

[0162] When determining the resource subset, the terminal determines the resource subset based on the candidate single-slot resources that meet the first condition that have been excluded.

[0163] Specifically, in the resource determination method described in this embodiment of the invention, during the process of determining a subset of resources and excluding candidate single-slot resources, the reference signal received power of the SCI is compared with the RSRP threshold (first RSRP threshold) in one of the RSRP threshold lists corresponding to or determined by the first information, to determine whether the candidate single-slot resource meets the first condition for resource exclusion.

[0164] In another implementation, for the first value in the first parameter, that is, the increase value of the RSRP threshold in the terminal determining the resource subset step, different first information corresponds to different first values.

[0165] Specifically, during the resource selection process, the first set A is initialized with all candidate single-slot resources, where the total number of candidate single-slot resources is M;

[0166] After the terminal excludes single-slot resources that meet the first condition from the first set A, if the number of remaining candidate single-slot resources in the first set A is less than the product of the total number of candidate single-slot resources M and the second value, then the RSRP threshold in the RSRP threshold list is increased by the first step length.

[0167] The first step length is: one of the at least one first value corresponding to the first information or determined by the first information.

[0168] Optionally, the resources in the first set A are the resources in the resource selection window.

[0169] Using this implementation, one of the RSRP threshold lists in the first parameter and the first information can be determined as an RSRP threshold list used for determining RSRP thresholds when receiving a certain SCI or selecting a certain resource selection method; alternatively, at least one RSRP threshold list in the first parameter can be directly determined as an RSRP threshold list used for determining RSRP thresholds when determining resources.

[0170] Therefore, the RSRP threshold list can be the RSRP threshold list corresponding to the first information, or the RSRP threshold list determined by the first information, or at least one RSRP threshold list included in the first parameter.

[0171] Specifically, based on the above priority combination (p) i ,p j ), determine one of the RSRP thresholds in the RSRP threshold list as the first RSRP threshold.

[0172] Furthermore, the increase in the RSRP threshold in the resource subset determination step, i.e. the first step length, is determined according to the method corresponding to the first information, or directly according to the indication of the first information.

[0173] For example, the first value selected will differ depending on the resource selection mechanism, the second information contained in the received SCI, the SCI format, or the RNTI of the CRC of the scrambled received SCI. For instance, the first value is 0dB for random resource selection, and 3dB for other resource selection methods. Or, for example, the first value is 0dB when the second information in the SCI is 0 or 00, and 3dB when the second information in the SCI is other values. In this implementation, the first value includes at least two values.

[0174] The above-described methods for selecting different first values ​​based on different resource selection mechanisms or different second information contained in the received SCI are merely illustrative examples and are not intended to limit the scope. For different SCI formats and CRC RNTIs of scrambled received SCIs, the methods for selecting the first value can be found above and will not be exemplified here. Optionally, in this embodiment, the second value is a predetermined percentage value, used in the terminal's resource subset determination step to compare the remaining number of candidate single-slot resources with the product of the total number M of candidate single-slot resources and the second value, to determine whether the RSRP threshold needs to be increased, and thus repeat the resource exclusion step.

[0175] In another implementation, during the process of determining the resource subset based on the first parameter:

[0176] The first set A is initialized with all candidate single-slot resources, and the total number of candidate single-slot resources is M;

[0177] After the terminal excludes single-slot resources that meet the first condition from the first set A, if the number of remaining candidate single-slot resources in the first set A is less than the product of the total number of candidate single-slot resources M and the second value, then the RSRP threshold in the RSRP threshold list corresponding to the first information is increased by a first step length, wherein the first step length is one of the at least one first value.

[0178] In this implementation, during the step of determining the resource subset at the terminal, a corresponding RSRP threshold list can be determined based on the first information. The RSRP thresholds in the determined RSRP threshold list are then increased by a first step length, where the first step length is selected from at least one of the first values ​​in the first parameters. In this implementation, the first value may be only one; the RSRP thresholds in other configured RSRP threshold lists besides the corresponding RSRP threshold list determined by the first information are not increased.

[0179] In this embodiment of the invention, optionally, different first values ​​can be determined through protocol agreement, configuration, or pre-configuration for different resource selection methods. For example, for a random resource selection method, the first value is 0dB; for a partially sensing resource selection method, the first value is 2dB; and for other resource selection methods, the second value is 3dB.

[0180] Optionally, in another embodiment, during the terminal's resource subset determination step, after excluding single-slot resources that meet the first condition from the first set A, if the number of remaining candidate single-slot resources in the first set A is less than the product of the total number of candidate single-slot resources M and the second value, then the RSRP threshold in the RSRP threshold list corresponding to the first information is increased by the first step length. This RSRP threshold list does not include RSRP thresholds configured for random resource selection. For example, this RSRP threshold list is an RSRP threshold list corresponding to resource selection methods other than random resource selection, or an RSRP threshold list when the second information contained in the received SCI is the second preset information or the second preset value, etc.

[0181] The second preset information or the second preset value is a preset field information or preset value used by the first information to indicate resource selection methods other than random resource selection. Further, optionally, in this embodiment of the invention, the first parameter also includes at least one preemption enabling parameter, which is a threshold for resource preemption. Different pieces of the first information can correspond to different preemption enabling parameters.

[0182] In another embodiment of the resource determination method described in this invention, during the process of the terminal determining a resource subset according to a first rule:

[0183] The terminal excludes candidate single-slot resources that meet the second condition, which is either corresponding to the first information or determined by the first information.

[0184] The second condition includes at least one of the following:

[0185] The first type: 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 same SCI format as the SCI received in the first time slot in the second time slot set, overlapping with resources determined according to candidate single time slot resources and / or source reservation period.

[0186] The second type: 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 having the same format as the SCI received in the first time slot, overlapping with resources determined according to candidate single time slot resources and / or source reservation period, and the RSRP measurement for the SCI is higher than the first RSRP threshold.

[0187] The second time slot set is determined based on the resource reservation period indicated by the first time slot and / or the SCI.

[0188] Specifically, the second condition mentioned above differs depending on the resource selection method.

[0189] For example, different resource selection mechanisms, different second information contained in the received SCI, different SCI formats, or different RNTIs of the CRC of the scrambled received SCI all lead to different second conditions. One of the first and second conditions can be selected respectively. For instance, for a random resource selection method, the first condition can be selected; for other resource selection methods, the second condition can be selected. As another example, when the second information in the SCI is 0 or 00, the first condition can be selected; when the second information in the SCI is other values, the second condition can be selected.

[0190] The above-mentioned methods for selecting different second conditions based on different resource selection mechanisms or different second information contained in the received SCI are merely illustrative examples and are not limited to this. For the selection of second conditions when the RNTI of the CRC of different SCI formats and scrambled SCIs are different, please refer to the above-mentioned methods, which will not be illustrated here.

[0191] Furthermore, it should be noted that during the process of the terminal determining the resource subset according to the first rule, the candidate single-slot resources are determined by combining the first condition and the second condition. These two are two different aspects used for resource exclusion during the resource exclusion process.

[0192] Optionally, the resource determination method further includes:

[0193] The terminal reports at least one of the following information to higher management:

[0194] Third information used to indicate the priority of candidate single-slot resources;

[0195] The fourth information is used to indicate whether a candidate single time slot resource overlaps with a first resource; wherein the first resource is: the resource block and time slot determined by the received SCI when the first information is a first preset information or a first preset value.

[0196] Optionally, the first preset information or the first preset value is a preset field information or a preset value used to indicate the random resource selection method.

[0197] Specifically, when the terminal reports the candidate single time slot resource set to the higher layer, for each candidate single time slot resource in the candidate single time slot resource set, it reports third information to indicate the priority of the corresponding candidate single time slot resource; or reports fourth information to indicate whether the corresponding candidate single time slot resource overlaps with the first resource, which is: the SCI format received in the first time slot, or determined assuming the same SCI format received in the second time slot set.

[0198] In this embodiment of the invention, the resource selection mechanism may optionally be determined by at least one of the following methods:

[0199] The second information contained in the received direct link control information (SCI);

[0200] The format of the received SCI (Straight-through Link Control Information);

[0201] The RNTI of the CRC of the scrambled received direct link control information (SCI).

[0202] Wherein, when the resource selection mechanism is indicated by the second information contained in the received SCI, the second information may be information used to indicate the resource selection mechanism.

[0203] Optionally, the second information can be an indication information added to the SCI. For example, it can use the reserved bit field in SCI format 1-A, or add a specific indication field to indicate the resource selection method used in this transmission. The indication method of the reserved bit field or the specific indication field can be as shown in the following table:

[0204]

[0205] When the resource selection mechanism is indicated by the received SCI format, different SCI formats can indicate different resource selection mechanisms. For example, when the terminal uses the random resource selection method, the first SCI format is used; when the terminal uses the partially perceptual resource selection method, the second SCI format is used; and when using other resource selection methods, the third SCI format is used. Alternatively, when the terminal uses the random resource selection method, the first SCI format is used; and when using other resource selection methods, the second SCI format is used.

[0206] When the RNTI indication of the CRC of the received SCI is obtained through scrambling, the scrambling method of the SCI can be different for different RNTIs; for example, the scrambling method of the SCI for different RNTIs is as follows: when the terminal uses the random resource selection method, the first RNTI is used for scrambling; when the terminal uses the partially perceptual resource selection method, the second RNTI is used for scrambling; and when the terminal uses other resource selection methods, the third RNTI is used for scrambling; or, when the terminal uses the random resource selection method, the first SCI format is used for scrambling; and when the terminal uses other resource selection methods, the second RNTI is used for scrambling.

[0207] In this embodiment of the invention, the SCI may optionally include SCI format 1 or SCI format 2.

[0208] It should be noted that, in this embodiment of the invention, alternatively, other resource selection methods can be described as if the terminal is not configured or does not use partial sensing methods and random resource selection methods.

[0209] The resource determination method described in this embodiment of the invention enables the terminal to select resources according to the determined resource selection method by using a first parameter or a first rule. This allows the terminal that selects resources in a perceptual manner to more easily exclude resources selected by the terminal that selects resources autonomously, thereby reducing the probability of resource collisions and improving the reliability of data transmission.

[0210] Another aspect of this invention provides a resource allocation method applied to a base station, such as... Figure 3 As shown, the method includes:

[0211] S310, Configure the first parameter and / or the first rule; wherein, the terminal determines the resource subset according to the first parameter or the first rule;

[0212] The first parameter includes at least one of the following:

[0213] At least one reference signal received power (RSRP) threshold list, the RSRP threshold list including RSRP thresholds for each priority combination;

[0214] At least one first value, wherein the first value is the increment of the RSRP threshold in the terminal determining resource subset step;

[0215] At least one preemption enable parameter;

[0216] The first rule includes: at least one terminal excluding candidate single-slot resources.

[0217] Optionally, in the resource configuration method, the first parameter is provided by higher-layer configuration parameters on the network side;

[0218] Different first information corresponds to different RSRP threshold lists, or different first values, or different preemption enable parameters.

[0219] Optionally, in the resource allocation method, the first rule includes a second condition, and the second condition includes at least one of the following:

[0220] The resource blocks and time slots determined by the format of the SCI received in the first time slot, or the resource blocks and time slots determined by the format of the SCI received in the second time slot set having the same format as the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or source reservation period.

[0221] The resource block and time slot determined by the format of the SCI received in the first time slot, or the resource block and time slot determined by the format of the SCI received in the second time slot set having the same format as the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or source reservation period, and the RSRP measurement for the SCI is higher than the first RSRP threshold.

[0222] The second time slot set is determined based on the resource reservation period indicated by the first time slot and / or the SCI.

[0223] Optionally, in the resource allocation method, the first information includes at least one of the following:

[0224] Resource selection mechanism;

[0225] The second information contained in the SCI (Straight-through Link Control Information) received by the terminal;

[0226] The format of the SCI (Straight-through Link Control Information) received by the terminal;

[0227] The RNTI of the CRC of the SCI received by the terminal after scrambling.

[0228] 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 besides random resource selection and partial sensing.

[0229] Optionally, in the resource allocation method, the second information is used to determine the resource selection mechanism; or

[0230] The second information is used to determine whether the first RSRP threshold is included in one of the RSRP threshold lists in the at least one RSRP threshold list; or,

[0231] The second information is used to determine that the length of the first step is one of the at least one first value; or,

[0232] The second information is used to determine whether the terminal will increase at least one RSRP threshold in the RSRP threshold list by a first step length; or,

[0233] The second information is used to determine the preemption enable parameters; or

[0234] The second information is used to determine the conditions for the terminal to exclude candidate single-slot resources.

[0235] This invention also provides a resource determination device, applied to a terminal, such as... Figure 4 As shown, the device includes:

[0236] The determining module 410 is used to determine a resource subset according to a first parameter or a first rule, wherein the higher layer selects resources from the resource subset for transmission of the Physical Side Link Shared Channel (PSSCH) or the Physical Side Link Control Channel (PSCCH).

[0237] The first parameter includes at least one of the following:

[0238] At least one reference signal received power (RSRP) threshold list, the RSRP threshold list including RSRP thresholds for each priority combination;

[0239] At least one first value, wherein the first value is the increment of the RSRP threshold in the terminal determining resource subset step;

[0240] At least one preemption enable parameter;

[0241] The first rule includes: at least one terminal excluding candidate single-slot resources.

[0242] Optionally, in the resource determination device, when the determination module 410 determines a resource subset based on the first parameter, the first parameter is provided by a higher-layer configuration parameter on the network side, or by a pre-configuration, or by a protocol agreement;

[0243] Different first information corresponds to different RSRP threshold lists, or different first values, or different preemption enable parameters.

[0244] Optionally, in the resource determination device, during the process of determining a resource subset based on the first parameter:

[0245] The terminal excludes candidate single-slot resources that meet the first condition;

[0246] The first condition includes at least: the reference signal received power (RSRP) measurement for the received pass-through control information (SCI) is higher than a first RSRP threshold.

[0247] The first RSRP threshold is included in one of the at least one RSRP threshold lists, wherein the RSRP threshold list corresponds to or is determined by the first information.

[0248] Optionally, in the resource determination device, during the process of determining a resource subset based on the first parameter:

[0249] The first set A is initialized with all candidate single-slot resources, where the total number of candidate single-slot resources is M;

[0250] After the terminal excludes single-slot resources that meet the first condition from the first set A, if the number of remaining candidate single-slot resources in the first set A is less than the product of the total number of candidate single-slot resources M and the second value, then the RSRP threshold in the RSRP threshold list is increased by the first step length.

[0251] The first step length is: one of the first values ​​corresponding to the first information or the RSRP threshold list, or determined by the first information.

[0252] Optionally, in the resource determination device, during the process of determining a resource subset based on the first parameter:

[0253] The first set A is initialized with all candidate single-slot resources, and the total number of candidate single-slot resources is M;

[0254] After the terminal excludes single-slot resources that meet the first condition from the first set A, if the number of remaining candidate single-slot resources in the first set A is less than the product of the total number of candidate single-slot resources M and the second value, then the RSRP threshold in the RSRP threshold list corresponding to the first information is increased by a first step length, wherein the first step length is one of the at least one first value.

[0255] Optionally, in the resource determination device, during the process of determining a resource subset according to the first rule:

[0256] The determination module 410 excludes candidate single-slot resources that meet the second condition, which is either corresponding to the first information or determined by the first information.

[0257] The second condition includes at least one of the following:

[0258] The resource blocks and time slots determined by the format of the SCI received in the first time slot, or the resource blocks and time slots determined by the format of the SCI received in the second time slot set having the same format as the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or source reservation period.

[0259] The resource block and time slot determined by the format of the SCI received in the first time slot, or the resource block and time slot determined by the format of the SCI received in the second time slot set having the same format as the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or source reservation period, and the RSRP measurement for the SCI is higher than the first RSRP threshold.

[0260] The second time slot set is determined based on the resource reservation period indicated by the first time slot and / or the SCI.

[0261] Optionally, in the resource determination device, wherein,

[0262] The first information includes at least one of the following:

[0263] Resource selection mechanism;

[0264] The second information contained in the received direct link control information (SCI);

[0265] The format of the received SCI (Straight-through Link Control Information);

[0266] The RNTI of the CRC of the scrambled received direct link control information (SCI).

[0267] Optionally, the resource determination 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.

[0268] Optionally, in the resource determination apparatus, the resource selection mechanism can be determined through at least one of the following methods:

[0269] The second information contained in the received direct link control information (SCI);

[0270] The format of the received SCI (Straight-through Link Control Information);

[0271] The RNTI of the CRC of the scrambled received direct link control information (SCI).

[0272] Optionally, in the resource determination device, wherein,

[0273] The second information is used to determine the resource selection mechanism; or

[0274] The second information is used to determine whether the first RSRP threshold is included in one of the RSRP threshold lists in the at least one RSRP threshold list; or,

[0275] The second information is used to determine that the length of the first step is one of the at least one first value; or,

[0276] The second information is used to determine whether the terminal will increase at least one RSRP threshold in the RSRP threshold list by a first step length; or,

[0277] The second information is used to determine the preemption enable parameters; or

[0278] The second information is used to determine the conditions for the terminal to exclude candidate single-slot resources.

[0279] Optionally, in the resource determination device, the determination module 410 is further configured to:

[0280] The terminal reports at least one of the following information to higher management:

[0281] Third information used to indicate the priority of candidate single-slot resources;

[0282] The fourth information is used to indicate whether a candidate single time slot resource overlaps with a first resource; wherein the first resource is: the resource block and time slot determined by the received SCI when the first information is a first preset information or a first preset value.

[0283] This invention also provides a resource allocation device applied to a base station, such as... Figure 5 As shown, the device includes:

[0284] Configuration module 510 is used to configure first parameters and / or first rules; wherein, the terminal determines a subset of resources based on the first parameters or the first rules;

[0285] The first parameter includes at least one of the following:

[0286] At least one reference signal received power (RSRP) threshold list, the RSRP threshold list including RSRP thresholds for each priority combination;

[0287] At least one first value, wherein the first value is the increment of the RSRP threshold in the terminal determining resource subset step;

[0288] At least one preemption enable parameter;

[0289] The first rule includes: at least one terminal excluding candidate single-slot resources.

[0290] Optionally, in the resource configuration device, the first parameter is provided by higher-layer configuration parameters on the network side;

[0291] Different first information corresponds to different RSRP threshold lists, or different first values, or different preemption enable parameters.

[0292] Optionally, in the resource allocation device, the first rule includes a second condition, which includes at least one of the following:

[0293] The resource blocks and time slots determined by the format of the SCI received in the first time slot, or the resource blocks and time slots determined by the format of the SCI received in the second time slot set having the same format as the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or source reservation period.

[0294] The resource block and time slot determined by the format of the SCI received in the first time slot, or the resource block and time slot determined by the format of the SCI received in the second time slot set having the same format as the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or source reservation period, and the RSRP measurement for the SCI is higher than the first RSRP threshold.

[0295] The second time slot set is determined based on the resource reservation period indicated by the first time slot and / or the SCI.

[0296] Optionally, in the resource allocation device, the first information includes at least one of the following:

[0297] Resource selection mechanism;

[0298] The second information contained in the SCI (Straight-through Link Control Information) received by the terminal;

[0299] The format of the SCI (Straight-through Link Control Information) received by the terminal;

[0300] The RNTI of the CRC of the SCI received by the terminal after scrambling.

[0301] Optionally, in the resource allocation device, 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.

[0302] Optionally, in the resource allocation device, the second information is used to instruct a resource selection mechanism; or

[0303] The second information is used to determine whether the first RSRP threshold is included in one of the RSRP threshold lists in the at least one RSRP threshold list; or,

[0304] The second information is used to determine that the length of the first step is one of the at least one first value; or,

[0305] The second information is used to determine whether the terminal will increase at least one RSRP threshold in the RSRP threshold list by a first step length; or,

[0306] The second information is used to determine the preemption enable parameters; or

[0307] The second information is used to determine the conditions for the terminal to exclude candidate single-slot resources.

[0308] Another aspect of this invention provides a network device, which is a terminal, such as... Figure 6 As shown, it includes: a processor 601; and a memory 603 connected to the processor 601 via a bus interface 602. The memory 603 is used to store programs and data used by the processor 601 when performing operations. The processor 601 calls and executes the programs and data stored in the memory 603.

[0309] The transceiver 604 is connected to the bus interface 602 and is used to receive and send data under the control of the processor 601. Specifically, the processor 601 reads the program from the memory 603 and executes the following processes:

[0310] Based on the first parameter or the first rule, a resource subset is determined, wherein the higher layer selects resources from the resource subset for transmission of the Physical Side Link Shared Channel (PSSCH) or the Physical Side Link Control Channel (PSCCH).

[0311] The first parameter includes at least one of the following:

[0312] At least one reference signal received power (RSRP) threshold list, the RSRP threshold list including RSRP thresholds for each priority combination;

[0313] At least one first value, wherein the first value is the increment of the RSRP threshold in the terminal determining resource subset step;

[0314] At least one preemption enable parameter;

[0315] The first rule includes: at least one terminal excluding candidate single-slot resources.

[0316] Optionally, in the network device, when the processor 601 determines the resource subset according to the first parameter, the first parameter is provided by the higher-layer configuration parameters on the network side, or by pre-configuration, or by a protocol agreement;

[0317] Different first information corresponds to different RSRP threshold lists, or different first values, or different preemption enable parameters.

[0318] Optionally, in the network device, during the process of processor 601 determining a subset of resources based on the first parameter:

[0319] The terminal excludes candidate single-slot resources that meet the first condition;

[0320] The first condition includes at least: the reference signal received power (RSRP) measurement for the received pass-through control information (SCI) is higher than a first RSRP threshold.

[0321] The first RSRP threshold is included in one of the at least one RSRP threshold lists, wherein the RSRP threshold list corresponds to or is determined by the first information.

[0322] Optionally, in the network device, during the process of processor 601 determining a subset of resources based on the first parameter:

[0323] The first set A is initialized with all candidate single-slot resources, where the total number of candidate single-slot resources is M;

[0324] After the terminal excludes single-slot resources that meet the first condition from the first set A, if the number of remaining candidate single-slot resources in the first set A is less than the product of the total number of candidate single-slot resources M and the second value, then the RSRP threshold in the RSRP threshold list is increased by the first step length.

[0325] The first step length is: one of the first values ​​corresponding to the first information or the RSRP threshold list, or determined by the first information.

[0326] Optionally, in the network device, during the process of processor 601 determining a subset of resources based on the first parameter:

[0327] The first set A is initialized with all candidate single-slot resources, and the total number of candidate single-slot resources is M;

[0328] After the terminal excludes single-slot resources that meet the first condition from the first set A, if the number of remaining candidate single-slot resources in the first set A is less than the product of the total number of candidate single-slot resources M and the second value, then the RSRP threshold in the RSRP threshold list corresponding to the first information is increased by a first step length, wherein the first step length is one of the at least one first value.

[0329] Optionally, in the process of determining a subset of resources according to the first rule, the processor 601 of the network device:

[0330] The terminal excludes candidate single-slot resources that meet the second condition, which is either corresponding to the first information or determined by the first information.

[0331] The second condition includes at least one of the following:

[0332] The resource blocks and time slots determined by the format of the SCI received in the first time slot, or the resource blocks and time slots determined by the format of the SCI received in the second time slot set having the same format as the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or source reservation period.

[0333] The resource block and time slot determined by the format of the SCI received in the first time slot, or the resource block and time slot determined by the format of the SCI received in the second time slot set having the same format as the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or source reservation period, and the RSRP measurement for the SCI is higher than the first RSRP threshold.

[0334] The second time slot set is determined based on the resource reservation period indicated by the first time slot and / or the SCI.

[0335] Optionally, in the network device, the first information includes at least one of the following:

[0336] Resource selection mechanism;

[0337] The second information contained in the received direct link control information (SCI);

[0338] The format of the received SCI (Straight-through Link Control Information);

[0339] The RNTI of the CRC of the scrambled received direct link control information (SCI).

[0340] Optionally, in the network device, 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.

[0341] Optionally, in the network device, the resource selection mechanism can be determined in at least one of the following ways:

[0342] The second information contained in the received direct link control information (SCI);

[0343] The format of the received SCI (Straight-through Link Control Information);

[0344] The RNTI of the CRC of the scrambled received direct link control information (SCI).

[0345] Optionally, the network device, wherein,

[0346] The second information is used to determine the resource selection mechanism; or

[0347] The second information is used to determine whether the first RSRP threshold is included in one of the RSRP threshold lists in the at least one RSRP threshold list; or,

[0348] The second information is used to determine that the length of the first step is one of the at least one first value; or,

[0349] The second information is used to determine whether the terminal will increase at least one RSRP threshold in the RSRP threshold list by a first step length; or,

[0350] The second information is used to determine the preemption enable parameters; or

[0351] The second information is used to determine the conditions for the terminal to exclude candidate single-slot resources.

[0352] Optionally, in the network device, the processor 601 is further configured to:

[0353] The terminal reports at least one of the following information to higher management:

[0354] Third information used to indicate the priority of candidate single-slot resources;

[0355] The fourth information is used to indicate whether a candidate single time slot resource overlaps with a first resource; wherein the first resource is: the resource block and time slot determined by the received SCI when the first information is a first preset information or a first preset value.

[0356] It should be noted that, in Figure 6 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 601) and memory (memory 603). The bus architecture can also link various other circuits, such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 604 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. For different terminals, the user interface 605 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc. The processor 601 is responsible for managing the bus architecture and general processing, and the memory 603 can store data used by the processor 601 during operation.

[0357] Another aspect of this invention provides a network device, which can be a base station, such as... Figure 7 As shown, it includes: a processor 701; and a memory 703 connected to the processor 701 via a bus interface 702. The memory 703 is used to store programs and data used by the processor 701 when performing operations. The processor 701 calls and executes the programs and data stored in the memory 703.

[0358] The transceiver 704 is connected to the bus interface 702 and is used to receive and send data under the control of the processor 701. Specifically, the processor 701 reads the program from the memory 703 and executes the following processes:

[0359] Configure a first parameter and / or a first rule; wherein, the terminal determines a subset of resources based on the first parameter or the first rule;

[0360] The first parameter includes at least one of the following:

[0361] At least one reference signal received power (RSRP) threshold list, the RSRP threshold list including RSRP thresholds for each priority combination;

[0362] At least one first value, wherein the first value is the increment of the RSRP threshold in the terminal determining resource subset step;

[0363] At least one preemption enable parameter;

[0364] The first rule includes: at least one terminal excluding candidate single-slot resources.

[0365] Optionally, in the network device, the first parameter is provided by higher-layer configuration parameters on the network side;

[0366] Different first information corresponds to different RSRP threshold lists, or different first values, or different preemption enable parameters.

[0367] Optionally, in the network device, the first rule includes a second condition, which includes at least one of the following:

[0368] The resource blocks and time slots determined by the format of the SCI received in the first time slot, or the resource blocks and time slots determined by the format of the SCI received in the second time slot set having the same format as the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or source reservation period.

[0369] The resource block and time slot determined by the format of the SCI received in the first time slot, or the resource block and time slot determined by the format of the SCI received in the second time slot set having the same format as the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or source reservation period, and the RSRP measurement for the SCI is higher than the first RSRP threshold.

[0370] The second time slot set is determined based on the resource reservation period indicated by the first time slot and / or the SCI.

[0371] Optionally, in the network device, the first information includes at least one of the following:

[0372] Resource selection mechanism;

[0373] The second information contained in the SCI (Straight-through Link Control Information) received by the terminal;

[0374] The format of the SCI (Straight-through Link Control Information) received by the terminal;

[0375] The RNTI of the CRC of the SCI received by the terminal after scrambling.

[0376] Optionally, in the network device, 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.

[0377] Optionally, in the network device, the second information is used to indicate a resource selection mechanism; or

[0378] The second information is used to determine whether the first RSRP threshold is included in one of the RSRP threshold lists in the at least one RSRP threshold list; or,

[0379] The second information is used to determine that the length of the first step is one of the at least one first value; or,

[0380] The second information is used to determine whether the terminal will increase at least one RSRP threshold in the RSRP threshold list by a first step length; or,

[0381] The second information is used to determine the preemption enable parameters; or

[0382] The second information is used to determine the conditions for the terminal to exclude candidate single-slot resources.

[0383] Among them, Figure 7In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 701) and memory (memory 703). The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 704 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. Processor 701 is responsible for managing the bus architecture and general processing, and memory 703 can store data used by processor 701 during operation.

[0384] In addition, specific embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, wherein when the program is executed by a processor, it implements the resource determination method as described above or the steps in the resource allocation method as described above.

[0385] Specifically, the computer-readable storage medium is applied to the aforementioned terminal or base station. When applied to a terminal, the execution steps in the corresponding resource determination method are as described in detail above; when applied to a base station, the execution steps in the corresponding resource configuration method are as described in detail above, and will not be repeated here.

[0386] In the several embodiments provided in this application, it should be understood that the disclosed methods and apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0387] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can be physically comprised separately, or two or more units can be integrated into one unit. The integrated unit described above can be implemented in hardware or in the form of hardware plus software functional units.

[0388] The integrated units implemented as software functional units described above can be stored in a computer-readable storage medium. These software functional units, stored in a storage medium, include several instructions that cause a computer device (which may be a personal computer, server, or network device, etc.) to execute some steps of the transmission and reception methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0389] The above describes the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A resource determination method applied to a terminal, characterized in that, The method includes: Based on the first parameter or the first rule, a resource subset is determined, wherein the higher layer selects resources from the resource subset for transmission of the Physical Side Link Shared Channel (PSSCH) or the Physical Side Link Control Channel (PSCCH). The first parameter includes: At least one reference signal received power (RSRP) threshold list, the RSRP threshold list including RSRP thresholds corresponding to each priority combination; The first rule includes: at least one terminal excluding candidate single-slot resources; When the terminal determines a resource subset based on the first parameter, different first information corresponds to different RSRP threshold lists; In the process of determining the resource subset according to the first rule: The terminal excludes candidate single-slot resources that meet the second condition, which is either corresponding to or determined by the first information; different first information corresponds to different second conditions. The first information includes: Resource selection mechanism.

2. The resource determination method of claim 1, wherein, The first parameter also includes at least one of the following: At least one first value, wherein the first value is the increment of the RSRP threshold in the terminal determining resource subset step; At least one preemption enable parameter; Different first information corresponds to different first values, or to different preemption enable parameters.

3. The resource determination method of claim 1, wherein, The first information also includes at least one of the following: The second information contained in the received direct link control information (SCI); The format of the received SCI (Straight-through Link Control Information); The RNTI of the CRC of the scrambled received direct link control information (SCI).

4. The resource determination method of claim 3, wherein, The second condition is different when the received SCI contains different second information, or when different SCI formats are received, or when the RNTI of the CRC of the scrambled received SCI is different.

5. The resource determination method according to claim 1, characterized in that, The first parameter is provided by the network-side higher-layer configuration parameters, or by pre-configuration, or by protocol agreement.

6. The resource determination method according to claim 1, characterized in that, During the process of determining the resource subset based on the first parameter: The terminal excludes candidate single-slot resources that meet the first condition; The first condition includes at least: the reference signal received power (RSRP) measurement for the received pass-through control information (SCI) is higher than a first RSRP threshold. The first RSRP threshold is included in one of the at least one RSRP threshold lists, wherein the RSRP threshold list corresponds to or is determined by the first information.

7. The resource determination method according to claim 2, characterized in that, During the process of determining the resource subset based on the first parameter: The first set A is initialized with all candidate single-slot resources, where the total number of candidate single-slot resources is M; After the terminal excludes single-slot resources that meet the first condition from the first set A, if the number of remaining candidate single-slot resources in the first set A is less than the product of the total number of candidate single-slot resources M and the second value, then the RSRP threshold in the RSRP threshold list is increased by the first step length. The first step length is: one of the first values ​​corresponding to the first information or the RSRP threshold list, or determined by the first information.

8. The resource determination method according to claim 2, characterized in that, During the process of determining the resource subset based on the first parameter: The first set A is initialized with all candidate single-slot resources, and the total number of candidate single-slot resources is M; After the terminal excludes single-slot resources that meet the first condition from the first set A, if the number of remaining candidate single-slot resources in the first set A is less than the product of the total number of candidate single-slot resources M and the second value, then the RSRP threshold in the RSRP threshold list corresponding to the first information is increased by a first step length, wherein the first step length is one of the at least one first value.

9. The resource determination method according to claim 3, characterized in that, The second condition includes at least one of the following: The resource blocks and time slots determined by the format of the SCI received in the first time slot, or the resource blocks and time slots determined by the format of the SCI received in the second time slot set that is the same as the format of the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or resource reservation period. The resource block and time slot determined by the format of the SCI received in the first time slot, or the resource block and time slot determined by the format of the SCI received in the second time slot set that is the same as the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or resource reservation period, and the RSRP measurement for the SCI is higher than the first RSRP threshold. The second time slot set is determined based on the resource reservation period indicated by the first time slot and / or the SCI.

10. The resource determination method according to claim 1, characterized in that, The resource selection mechanism includes at least one of random resource selection, partial perception, and full perception.

11. The resource determination method according to claim 1, characterized in that, The resource selection mechanism is determined through at least one of the following methods: The second information contained in the received direct link control information (SCI); The format of the received SCI (Straight-through Link Control Information); The RNTI of the CRC of the scrambled received direct link control information (SCI).

12. The resource determination method according to claim 3 or 11, characterized in that, The second information is used to determine the resource selection mechanism; or The second information is used to determine whether the first RSRP threshold is included in one of the RSRP threshold lists in the at least one RSRP threshold list; or, The second information is used to determine that the length of the first step is one of the at least one first value; or, The second information is used to determine that the terminal will increase at least one RSRP threshold in the RSRP threshold list by a first step length; or, The second information is used to determine the preemption enable parameters; or The second information is used to determine the conditions for the terminal to exclude candidate single-slot resources.

13. The resource determination method according to claim 1, characterized in that, The method further includes: The terminal reports at least one of the following information to higher management: Third information used to indicate the priority of candidate single-slot resources; The fourth information is used to indicate whether a candidate single time slot resource overlaps with a first resource; wherein the first resource is: the resource block and time slot determined by the received SCI when the first information is a first preset information or a first preset value.

14. A resource allocation method applied to a base station, characterized in that, The method includes: Configure a first parameter and / or a first rule; wherein, the terminal determines a subset of resources based on the first parameter or the first rule; The first parameter includes: At least one reference signal received power (RSRP) threshold list, the RSRP threshold list including RSRP thresholds corresponding to each priority combination; The first rule includes: at least one terminal excluding candidate single-slot resources, wherein the condition is a second condition corresponding to the first information or determined by the first information; different first information corresponds to different second conditions; Among them, when configuring the first parameter, different first information corresponds to different RSRP threshold lists; The first information includes: Resource selection mechanism.

15. The resource allocation method according to claim 14, characterized in that, The first parameter also includes at least one of the following: At least one first value, wherein the first value is the increment of the RSRP threshold in the terminal determining resource subset step; At least one preemption enable parameter; When configuring the first parameter, different first information corresponds to different first values, or to different preemption enable parameters.

16. The resource allocation method according to claim 14, characterized in that, The first information also includes at least one of the following: The second information contained in the received direct link control information (SCI); The format of the received SCI (Straight-through Link Control Information); The RNTI of the CRC of the scrambled received direct link control information (SCI).

17. The resource allocation method according to claim 16, characterized in that, The second condition is different when the received SCI contains different second information, or when different SCI formats are received, or when the RNTI of the CRC of the scrambled received SCI is different.

18. The resource allocation method according to claim 14, characterized in that, The first parameter is provided by the network-side higher-layer configuration parameters.

19. The resource allocation method according to claim 14, characterized in that, The first rule includes a second condition, which includes at least one of the following: The resource blocks and time slots determined by the format of the SCI received in the first time slot, or the resource blocks and time slots determined by the format of the SCI received in the second time slot set having the same format as the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or resource reservation period. The resource block and time slot determined by the format of the SCI received in the first time slot, or the resource block and time slot determined by the format of the SCI received in the second time slot set having the same format as the SCI received in the first time slot, overlap with the resources determined according to the candidate single time slot resources and / or resource reservation period, and the RSRP measurement for the SCI is higher than the first RSRP threshold. The second time slot set is determined based on the resource reservation period indicated by the first time slot and / or the SCI.

20. The resource allocation method according to claim 14, characterized in that, The resource selection mechanism includes at least one of random resource selection, partial perception, and full perception.

21. The resource allocation method according to claim 16, characterized in that, The second information is used to determine the resource selection mechanism; or The second information is used to determine whether the first RSRP threshold is included in one of the RSRP threshold lists in the at least one RSRP threshold list; or, The second information is used to determine that the length of the first step is one of the at least one first value; or, The second information is used to determine that the terminal will increase at least one RSRP threshold in the RSRP threshold list by a first step length; or, The second information is used to determine the preemption enable parameters; or The second information is used to determine the conditions for the terminal to exclude candidate single-slot resources.

22. A resource determination device, applied to a terminal, characterized in that, The device includes: The determination module is used to determine a subset of resources based on a first parameter or a first rule, wherein the higher layer selects resources from the subset of resources for transmission of the Physical Side Link Shared Channel (PSSCH) or the Physical Side Link Control Channel (PSCCH). The first parameter includes: At least one reference signal received power (RSRP) threshold list, the RSRP threshold list including RSRP thresholds corresponding to each priority combination; The first rule includes: at least one terminal excluding candidate single-slot resources; When determining a resource subset based on the first parameter, different first information corresponds to different RSRP threshold lists; In the process of determining the resource subset according to the first rule: The terminal excludes candidate single-slot resources that meet the second condition, which is either corresponding to or determined by the first information; different first information corresponds to different second conditions. The first information includes: Resource selection mechanism.

23. A resource allocation device, applied to a base station, characterized in that, The device includes: A configuration module is used to configure a first parameter and / or a first rule; wherein, the terminal determines a subset of resources based on the first parameter or the first rule; The first parameter includes: At least one reference signal received power (RSRP) threshold list, the RSRP threshold list including RSRP thresholds corresponding to each priority combination; The first rule includes: a condition for at least one terminal to exclude candidate single-slot resources; the condition is a second condition corresponding to the first information or determined by the first information; different first information corresponds to different second conditions; Among them, when configuring the first parameter, different first information corresponds to different RSRP threshold lists; The first information includes: Resource selection mechanism.

24. A network device, characterized in that, include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the resource determination method as described in any one of claims 1 to 13, or implements the resource allocation method as described in any one of claims 14 to 21.

25. A readable storage medium, characterized in that, The readable storage medium stores a program that, when executed by a processor, implements the steps of the resource determination method as described in any one of claims 1 to 13, or the steps of the resource allocation method as described in any one of claims 14 to 21.

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