Information processing method, device and equipment and readable storage medium

Abstract

The invention discloses an information processing method and device, equipment and a readable storage medium, relates to the technical field of communication, and aims to ensure RTT positioning performance. The method comprises the steps that an SCI is received, the SCI is located in a first time slot, and the SCI is associated with SL PRS transmission, or the SCI is associated with the SL PRS transmission and PSSCH transmission; determining at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located; performing resource selection in the at least one resource selection window; wherein the first terminal is a target terminal corresponding to the SL PRS resource associated with the SCI. According to the embodiment of the invention, the RTT positioning performance can be ensured.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an information processing method, device, equipment and readable storage medium. Background Art

[0002] The positioning enhancement of related technologies supports the terminal positioning capability in scenarios with / partial / no network coverage (in-coverage / partial coverage / out-of-coverage), and further enables relative positioning and ranging based on absolute positioning. In order to support the above new use case scenarios and new indicators, it is necessary to support direct link (sidelink) positioning to achieve positioning measurements between different terminals.

[0003] One of the positioning methods includes an RTT-type (Round trip time (RTT) type) sidelink positioning method. In this method, the selection of (sidelink) positioning reference signal (PRS) resources of two terminals performing sidelink communication is a mutually independent process, which affects the RTT positioning performance. Summary of the invention

[0004] The embodiments of the present application provide an information processing method, apparatus, device and readable storage medium to ensure RTT positioning performance.

[0005] In a first aspect, an embodiment of the present application provides an information processing method, which is applied to a first terminal, including:

[0006] Receiving Sidelink Control Information (SCI), wherein the SCI is located in a first time slot and the SCI is associated with a Sidelink (SL) Positioning Reference Signal (PRS) transmission, or the SCI is associated with an SL PRS transmission and a Physical SideLink Shared Channel (PSSCH) transmission;

[0007] Determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located;

[0008] Performing resource selection within the at least one resource selection window;

[0009] Among them, the first terminal is the target terminal corresponding to the SL PRS resources associated with the SCI.

[0010] Optionally, determining at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located includes one or more of the following:

[0011] Determine a resource selection window according to the first time slot and the time slot where the last reserved resource of the SCI is located;

[0012] Determine a resource selection window according to the first time slot, the time slot where the last reserved resource of the SCI is located, and the first delay parameter;

[0013] A resource selection window is determined according to the first time slot or the time slot where the last reserved resource of the SCI is located, and the second delay parameter.

[0014] Optionally, determining the resource selection window according to the first time slot and the time slot where the last reserved resource of the SCI is located includes:

[0015] The time interval between the first time slot and the time slot where the last reserved resource of the SCI is located is used as the resource selection window.

[0016] Optionally, determining the resource selection window according to the first time slot, the time slot where the last reserved resource of the SCI is located, and the first delay parameter includes:

[0017] The time interval between the first time slot and the first moment is used as the resource selection window, wherein the first moment is the time slot corresponding to the sum of the time slot where the last reserved resource of the SCI is located and the first delay parameter.

[0018] Optionally, determining the resource selection window according to the first time slot or the time slot where the last reserved resource of the SCI is located, and the second delay parameter, includes:

[0019] Using the time interval between the first time slot and a second moment as the resource selection window, wherein the second moment is a time slot corresponding to the sum of the first time slot and a second delay parameter; or

[0020] The time interval between the time slot where the last reserved resource of the SCI is located and the second moment is used as the resource selection window, wherein the second moment is the time slot corresponding to the sum of the time slot where the last reserved resource of the SCI is located and the second delay parameter.

[0021] Optionally, the performing resource selection in the at least one resource selection window includes:

[0022] Starting from the smallest resource selection window in the at least one resource selection window, the following process is performed:

[0023] S1. Select resources in a first resource selection window and execute a resource exclusion process; the first resource selection window is one of the at least one resource selection window;

[0024] S2. When the number of candidate resources remaining in the first resource selection window is less than a preset threshold, if the resource pool enables resource selection window switching and the priority of the SL PRS resource is higher than the preset threshold, select a second resource selection window from the at least one resource selection window, wherein the size of the second resource selection window is larger than the size of the first resource selection window;

[0025] S3. Perform resource selection in the second resource selection window; if the second resource selection window is the largest resource selection window among the at least one resource selection window, and if the number of candidate resources remaining in the second resource selection window is less than a preset threshold, raise the RSRP threshold and execute S1-S3; if the second resource selection window is not the largest resource selection window among the at least one resource selection window, and if the number of candidate resources remaining in the second resource selection window is less than a preset threshold, use the second resource selection window as the first resource selection window and execute S2-S3;

[0026] or

[0027] The following process is performed on the at least one resource selection window:

[0028] S4, selecting resources in a first resource selection window and executing a resource exclusion process; the first resource selection window is one of the at least one resource selection window;

[0029] S5. When the number of candidate resources remaining in the first resource selection window is less than the preset threshold, if the resource pool does not enable resource selection window switching and / or the priority of SL PRS resources is lower than or equal to the preset threshold, raise the reference signal received power RSRP threshold in the first resource selection window.

[0030] Optionally, the SCI also includes a first indication, wherein the first indication is used to indicate a transmission party of one or more reserved SL PRS resources;

[0031] The transmitting party includes the first terminal or the second terminal, and the one or more reserved SL PRS resources are SL PRS resources other than the current SL PRS resources and include the last SL PRS resource.

[0032] Optionally, the first indication is indicated by N1-1 bits, where N1 represents the total number of reserved SL PRS resources and has a value of 2 or 3.

[0033] Optionally, the method further includes:

[0034] If the transmitting party is the first terminal, a second indication is reported, wherein the second indication is used to indicate resource information of the one or more reserved SL PRS resources and information of a candidate resource set obtained after resource selection.

[0035] Optionally, one or more reserved SL PRS resources are indicated by a time resource indication (Time Resource Indicator Value, TRIV) and a resource identifier (Resource ID).

[0036] In a second aspect, an embodiment of the present application further provides an information processing method, which is applied to a second terminal, including:

[0037] Sending an SCI to instruct the first terminal to determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located, and to perform resource selection within the at least one resource selection window;

[0038] The SCI is located in the first time slot, and the SCI is associated with SL PRS transmission, or the SCI is associated with SL PRS transmission and PSSCH transmission, and the first terminal is the target terminal corresponding to the SL PRS resource associated with the SCI.

[0039] Optionally, the method further includes:

[0040] The SCI also includes a first indication, wherein the first indication is used to indicate a transmission party of one or more reserved SLPRS resources;

[0041] The transmitting party includes the first terminal or the second terminal, and the one or more reserved SLPRS resources are SL PRS resources other than the current SL PRS resources and include the last SL PRS resource.

[0042] Optionally, the first indication is indicated by N1-1 bits, where N1 represents the total number of reserved SL PRS resources and has a value of 2 or 3.

[0043] Optionally, one or more reserved SL PRS resources are indicated by a time resource indicator value (Time Resource Indicator Value, TRIV) and a resource identifier (Resource ID).

[0044] In a third aspect, the present application further provides an information processing device, applied to a first terminal, comprising:

[0045] A first receiving module, configured to receive an SCI, wherein the SCI is located in a first time slot and the SCI is associated with an SL PRS transmission, or the SCI is associated with an SL PRS transmission and a PSSCH transmission;

[0046] A first determining module, configured to determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located;

[0047] A first selection module, configured to select resources within the at least one resource selection window;

[0048] Among them, the first terminal is the target terminal corresponding to the SL PRS resources associated with the SCI.

[0049] Optionally, the first determining module is further configured to perform one or more of the following:

[0050] Determine a resource selection window according to the first time slot and the time slot where the last reserved resource of the SCI is located;

[0051] Determine a resource selection window according to the first time slot, the time slot where the last reserved resource of the SCI is located, and the first delay parameter;

[0052] A resource selection window is determined according to the first time slot or the time slot where the last reserved resource of the SCI is located, and the second delay parameter.

[0053] Optionally, the first determining module is further used for:

[0054] The time interval between the first time slot and the time slot where the last reserved resource of the SCI is located is used as the resource selection window.

[0055] Optionally, the first determining module is further used for:

[0056] The time interval between the first time slot and the first moment is used as the resource selection window, wherein the first moment is the time slot corresponding to the sum of the time slot where the last reserved resource of the SCI is located and the first delay parameter.

[0057] Optionally, the first determining module is further used for:

[0058] Using the time interval between the first time slot and a second moment as the resource selection window, wherein the second moment is a time slot corresponding to the sum of the first time slot and a second delay parameter; or

[0059] The time interval between the time slot where the last reserved resource of the SCI is located and the second moment is used as the resource selection window, wherein the second moment is the time slot corresponding to the sum of the time slot where the last reserved resource of the SCI is located and the second delay parameter.

[0060] Optionally, the first selection module is further used to:

[0061] Starting from the smallest resource selection window in the at least one resource selection window, the following process is performed:

[0062] S1. Select resources in a first resource selection window and execute a resource exclusion process; the first resource selection window is one of the at least one resource selection window;

[0063] S2. When the number of candidate resources remaining in the first resource selection window is less than a preset threshold, if the resource pool enables resource selection window switching and the priority of the SL PRS resource is higher than the preset threshold, select a second resource selection window from the at least one resource selection window, wherein the size of the second resource selection window is larger than the size of the first resource selection window;

[0064] S3. Perform resource selection in the second resource selection window; if the second resource selection window is the largest resource selection window among the at least one resource selection window, and if the number of candidate resources remaining in the second resource selection window is less than a preset threshold, raise the RSRP threshold and execute S1-S3; if the second resource selection window is not the largest resource selection window among the at least one resource selection window, and if the number of candidate resources remaining in the second resource selection window is less than a preset threshold, use the second resource selection window as the first resource selection window and execute S2-S3;

[0065] or

[0066] The following process is performed on the at least one resource selection window:

[0067] S4, selecting resources in a first resource selection window and executing a resource exclusion process; the first resource selection window is one of the at least one resource selection window;

[0068] S5. When the number of candidate resources remaining in the first resource selection window is less than the preset threshold, if the resource pool does not enable resource selection window switching and / or the priority of SL PRS resources is lower than or equal to the preset threshold, raise the reference signal received power RSRP threshold in the first resource selection window.

[0069] Optionally, the SCI also includes a first indication, wherein the first indication is used to indicate a transmission party of one or more reserved SL PRS resources;

[0070] The transmitting party includes the first terminal or the second terminal, and the one or more reserved SL PRS resources are SL PRS resources other than the current SL PRS resources and include the last SL PRS resource.

[0071] Optionally, the first indication is indicated by N1-1 bits, where N1 represents the total number of reserved SL PRS resources and has a value of 2 or 3.

[0072] Optionally, the device may further include:

[0073] The first sending module is used to report a second indication if the transmitting party is the first terminal, wherein the second indication is used to indicate resource information of the one or more reserved SL PRS resources and information of a candidate resource set obtained after resource selection.

[0074] Optionally, one or more reserved SL PRS resources are indicated by TRIV and Resource ID.

[0075] In a fourth aspect, the present application further provides an information processing device, applied to a second terminal, comprising:

[0076] A first sending module, used to send an SCI, used to instruct the first terminal to determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located, and to perform resource selection in the at least one resource selection window;

[0077] The SCI is located in the first time slot, and the SCI is associated with a direct link positioning reference signal SL PRS transmission, or the SCI is associated with SL PRS transmission and PSSCH transmission, and the first terminal is the target terminal corresponding to the SL PRS resource associated with the SCI.

[0078] Optionally, the SCI also includes a first indication, wherein the first indication is used to indicate a transmission party of one or more reserved SL PRS resources;

[0079] The transmitting party includes the first terminal or the second terminal, and the one or more reserved SLPRS resources are SL PRS resources other than the current SL PRS resources and include the last SL PRS resource.

[0080] Optionally, the first indication is indicated by N1-1 bits, N1 indicates that the reserved SL PRS is available, and one or more reserved SL PRS resources are indicated by TRIV and Resource ID.

[0081] In a fifth aspect, the present application further provides an information processing device, applied to a first terminal, comprising: a processor and a transceiver;

[0082] The transceiver is configured to receive an SCI, wherein the SCI is located in a first time slot and the SCI is associated with an SL PRS transmission, or the SCI is associated with an SL PRS transmission and a PSSCH transmission;

[0083] The processor is configured to determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located; and perform resource selection in the at least one resource selection window;

[0084] Among them, the first terminal is the target terminal corresponding to the SL PRS resources associated with the SCI.

[0085] Optionally, the processor is further configured to perform one or more of the following:

[0086] Determine a resource selection window according to the first time slot and the time slot where the last reserved resource of the SCI is located;

[0087] Determine a resource selection window according to the first time slot, the time slot where the last reserved resource of the SCI is located, and the first delay parameter;

[0088] A resource selection window is determined according to the first time slot or the time slot where the last reserved resource of the SCI is located, and the second delay parameter.

[0089] Optionally, the processor is further used to: use the time interval between the first time slot and the time slot where the last reserved resource of the SCI is located as the resource selection window.

[0090] Optionally, the processor is further configured to:

[0091] The time interval between the first time slot and the first moment is used as the resource selection window, wherein the first moment is the time slot corresponding to the sum of the time slot where the last reserved resource of the SCI is located and the first delay parameter.

[0092] Optionally, the processor is further configured to:

[0093] Using the time interval between the first time slot and a second moment as the resource selection window, wherein the second moment is a time slot corresponding to the sum of the first time slot and a second delay parameter; or

[0094] The time interval between the time slot where the last reserved resource of the SCI is located and the second moment is used as the resource selection window, wherein the second moment is the time slot corresponding to the sum of the time slot where the last reserved resource of the SCI is located and the second delay parameter.

[0095] Optionally, the processor is further configured to:

[0096] Starting from the smallest resource selection window in the at least one resource selection window, the following process is performed:

[0097] S1. Select resources in a first resource selection window and execute a resource exclusion process; the first resource selection window is one of the at least one resource selection window;

[0098] S2. When the number of candidate resources remaining in the first resource selection window is less than a preset threshold, if the resource pool enables resource selection window switching and the priority of the SL PRS resource is higher than the preset threshold, select a second resource selection window from the at least one resource selection window, wherein the size of the second resource selection window is larger than the size of the first resource selection window;

[0099] S3. Perform resource selection in the second resource selection window; if the second resource selection window is the largest resource selection window among the at least one resource selection window, and if the number of candidate resources remaining in the second resource selection window is less than a preset threshold, raise the RSRP threshold and execute S1-S3; if the second resource selection window is not the largest resource selection window among the at least one resource selection window, and if the number of candidate resources remaining in the second resource selection window is less than a preset threshold, use the second resource selection window as the first resource selection window and execute S2-S3;

[0100] or

[0101] The following process is performed on the at least one resource selection window:

[0102] S4, selecting resources in a first resource selection window and executing a resource exclusion process; the first resource selection window is one of the at least one resource selection window;

[0103] S5. When the number of candidate resources remaining in the first resource selection window is less than the preset threshold, if the resource pool does not enable resource selection window switching and / or the priority of SL PRS resources is lower than or equal to the preset threshold, raise the reference signal received power RSRP threshold in the first resource selection window.

[0104] Optionally, the SCI also includes a first indication, wherein the first indication is used to indicate a transmission party of one or more reserved SL PRS resources;

[0105] The transmitting party includes the first terminal or the second terminal, and the one or more reserved SL PRS resources are SL PRS resources other than the current SL PRS resources and include the last SL PRS resource.

[0106] Optionally, the first indication is indicated by N1-1 bits, where N1 represents the total number of reserved SL PRS resources and has a value of 2 or 3.

[0107] Optionally, the processor is further configured to:

[0108] If the transmitting party is the first terminal, a second indication is reported, wherein the second indication is used to indicate resource information of the one or more reserved SL PRS resources and information of a candidate resource set obtained after resource selection.

[0109] Optionally, one or more reserved SL PRS resources are indicated by TRIV and Resource ID.

[0110] In a sixth aspect, the present application further provides an information processing device, applied to a second terminal, comprising: a processor and a transceiver;

[0111] The transceiver is used to send the SCI, which is used to instruct the first terminal to determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located, and to perform resource selection in the at least one resource selection window;

[0112] The SCI is located in the first time slot, and the SCI is associated with a direct link positioning reference signal SL PRS transmission, or the SCI is associated with SL PRS transmission and PSSCH transmission, and the first terminal is the target terminal corresponding to the SL PRS resource associated with the SCI.

[0113] Optionally, the SCI also includes a first indication, wherein the first indication is used to indicate a transmission party of one or more reserved SL PRS resources;

[0114] The transmitting party includes the first terminal or the second terminal, and the one or more reserved SLPRS resources are SL PRS resources other than the current SL PRS resources and include the last SL PRS resource.

[0115] Optionally, the first indication is indicated by N1-1 bits, where N1 represents the total number of reserved SL PRS resources and has a value of 2 or 3.

[0116] Optionally, one or more reserved SL PRS resources are indicated by TRIV and a resource identifier Resource ID.

[0117] In the seventh aspect, an embodiment of the present application also provides a communication device, including: a memory, a processor, and a program stored in the memory and executable on the processor, wherein the processor implements the steps in the information processing method as described above when executing the program.

[0118] In an eighth aspect, an embodiment of the present application further provides a readable storage medium, on which a program is stored, and when the program is executed by a processor, the steps in the information processing method as described above are implemented.

[0119] By using the solution of the embodiment of the present application, the first terminal can determine the resource selection window and perform resource selection according to the SCI. Therefore, the first terminal and the second terminal performing RTT positioning can select appropriate resources to ensure RTT positioning performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0120] Figure 1 It is one of the flow charts of the information processing method provided in the embodiment of the present application;

[0121] Figure 2(a), Figure 2(b) and Figure 2(c) are schematic diagrams of resource selection windows, respectively;

[0122] FIG3( a ) and FIG3( b ) are schematic diagrams of indications of the first indication, respectively;

[0123] Figure 4 is a schematic diagram indicating one or more reserved SL PRS resources;

[0124] Figure 5 This is the second flowchart of the information processing method provided in the embodiment of the present application;

[0125] Figure 6 This is the third flowchart of the information processing method provided in the embodiment of the present application;

[0126] Figure 7 It is one of the structural diagrams of the information processing device provided in the embodiment of the present application;

[0127] Figure 8 This is the second structural diagram of the information processing device provided in the embodiment of the present application;

[0128] Fig. 9 This is the third structural diagram of the information processing device provided in the embodiment of the present application;

[0129] Fig.10 This is the fourth structural diagram of the information processing device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0130] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0131] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0132] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0133] In the embodiment of the present application, the existing resource reservation mechanism is enhanced, that is, the first terminal determines the resource selection window according to the reserved resources of the second terminal, and further, a transmission indication of the reserved resources can be added to the SCI sent by the second terminal. The specific process of the embodiment of the present application is described in detail below.

[0134] See also Figure 1 , Figure 1 is a flowchart of an information processing method provided in an embodiment of the present application, which is applied to a first terminal, such as Figure 1 As shown, the following steps are included:

[0135] Step 101: Receive SCI, wherein the SCI is located in the first time slot and the SCI is associated with SL PRS transmission, or the SCI is associated with SL PRS transmission and PSSCH transmission.

[0136] Among them, the first terminal is the target terminal corresponding to the SL PRS resources associated with the SCI.

[0137] The solution of the embodiment of the present application is applicable to dedicated resource pool and sharedresource pool. The relevant technical positioning supports two types of SL PRS resource pools. Dedicated resource pool is a resource pool dedicated to SL PRS, which only contains SL PRS and its associated physical sidelink control channel (Physical Sidelink Control Channel, PSCCH) channel; shared resource pool is a shared resource pool for sidelink communication data and SL PRS. Considering backward compatibility, SL PRS is carried in the physical sidelink shared channel PSSCH, and the SCI associated with SL PRS is a new SCI format 2 format.

[0138] Step 102: Determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located.

[0139] In this step, the first terminal may perform one or more of the following to determine at least one resource selection window (or time interval):

[0140] 1) Determine a resource selection window according to the first time slot and the time slot where the last reserved resource of the SCI is located.

[0141] Specifically, the first terminal uses the time interval between the first time slot and the time slot where the last reserved resource of the SCI is located as the resource selection window.

[0142] For example, as shown in FIG. 2( a ), the first terminal determines that the resource selection window is: [A, B], where A is the first time slot; B is the Nth (= N max ) reserved resources (SL PRS resources) where the time slot (N max is the maximum value of N, which is configured by high-level parameters or pre-configured, and the typical value is 2 or 3).

[0143] 2) Determine a resource selection window according to the first time slot, the time slot where the last reserved resource of the SCI is located, and the first delay parameter.

[0144] Specifically, the first terminal uses the time interval between the first time slot and the first moment as the resource selection window, wherein the first moment is a time slot corresponding to the sum of a time slot where the last reserved resource of the SCI is located and a first delay parameter.

[0145] For example, as shown in FIG2(b), the first terminal determines that the resource selection window is: [A, B], where A is the first time slot; B = n + T bound1 , where n is the Nth (=N max ) (i.e. the last) reserved resource (SL PRS resource) in the time slot, T bound1 It is the first delay parameter, which represents the upper limit of a delay, and the unit is time slot or millisecond.

[0146] 3) Determine a resource selection window according to the first time slot or the time slot where the last reserved resource of the SCI is located, and the second delay parameter.

[0147] Specifically, the first terminal may use the time interval between the first time slot and the second moment as the resource selection window, wherein the second moment is a time slot corresponding to the sum of the first time slot and a second delay parameter, and the second delay parameter represents an upper limit of a delay, in units of time slots or milliseconds; or,

[0148] The first terminal may use the time interval between the time slot where the last reserved resource of the SCI is located and the second moment as the resource selection window, wherein the second moment is the time slot corresponding to the sum of the time slot where the last reserved resource of the SCI is located and the second delay parameter.

[0149] For example, as shown in FIG2(c), the first terminal determines that the resource selection window is: [A, B], where A is the first time slot; B = A + T bound2 , T bound2 is the second delay parameter.

[0150] For example, the first terminal determines that the resource selection window is: [A, B], where A is the first time slot; B = n + T bound2 , where n is the Nth (=N max ) reserved resources (SL PRS resources) in the time slot, T bound2 is the second delay parameter.

[0151] In the above-mentioned several modes, the first delay parameter and / or the second delay parameter is defined by a protocol, or pre-configured by a resource pool or configured by a resource pool, or configured by the second terminal, or defined and configured by a priority level.

[0152] The concept of "time slot" mentioned above can be understood as the time corresponding to the time slot.

[0153] The last reserved resource of the SCI is located within 32 logical time slots.

[0154] For the above methods of determining the resource selection window, the specific method used may be defined by the protocol, (pre)configured at the resource pool level, configured by the second terminal, or selected by the first terminal based on implementation. Afterwards, the first terminal excludes resources within the above resource selection window based on the perception result.

[0155] Step 103: Select a resource in the at least one resource selection window.

[0156] In the embodiment of the present application, resource selection may be performed in the following manner:

[0157] Starting from the smallest resource selection window in the at least one resource selection window, the following process is performed:

[0158] S1. Select resources in a first resource selection window and execute a resource exclusion process; the first resource selection window is one of the at least one resource selection window; when the resource selection process is executed for the first time, the first resource selection window is the minimum resource selection window; when the resource selection process is executed subsequently, the first resource selection window is the second resource selection window selected for the subsequent process.

[0159] S2. When the number of candidate resources remaining in the first resource selection window is less than a preset threshold, if the resource pool enables resource selection window switching and the priority of the SL PRS resource is higher than the preset threshold, select a second resource selection window from the at least one resource selection window, wherein the size of the second resource selection window is larger than the size of the first resource selection window;

[0160] S3. Perform resource selection in the second resource selection window; if the second resource selection window is the largest resource selection window among the at least one resource selection window, and if the number of candidate resources remaining in the second resource selection window is less than a preset threshold, raise the RSRP threshold and execute S1-S3; if the second resource selection window is not the largest resource selection window among the at least one resource selection window, and if the number of candidate resources remaining in the second resource selection window is less than a preset threshold, use the second resource selection window as the first resource selection window and execute S2-S3;

[0161] In the above process, the terminal may stop executing S1-S3 when the RSRP threshold after raising reaches a preset value based on implementation determination; and stop executing S2-S3 when the second resource selection window is the last resource selection window among the at least one resource selection window.

[0162] or

[0163] The following process is performed on the at least one resource selection window:

[0164] S4, selecting resources in a first resource selection window and executing a resource exclusion process; the first resource selection window is one of the at least one resource selection window;

[0165] S5. When the number of candidate resources remaining in the first resource selection window is less than the preset threshold, if the resource pool does not enable resource selection window switching and / or the priority of SL PRS resources is lower than or equal to the preset threshold, raise the reference signal received power RSRP threshold in the first resource selection window.

[0166] Among them, the above-mentioned preset threshold and preset threshold value can be set as needed.

[0167] Specifically, in an embodiment of the present application, in order to reduce the probability of resource conflicts caused by continuously increasing the RSRP threshold in resource exclusion, when the first terminal supports at least one resource selection window determination method, or the first delay parameter and / or the second delay parameter is a priority level definition and configuration, dynamic switching of the resource selection window can be supported.

[0168] First, the first terminal performs resource selection from the minimum resource selection window (i.e., the first resource selection window) in the at least one resource selection window. After resource exclusion, when the candidate resource selection set S_A (i.e., the number of remaining candidate resources) obtained by the physical layer does not meet X% (X can be pre-configured, such as 20, 30, etc.) of the total candidate resources M_total, the resource selection window is adjusted first (rather than raising the RSRP threshold) to switch the resource window to a longer window (i.e., the second resource selection window). If the resource pool enables resource selection window switching and the priority of the SL PRS resource is higher than the preset threshold, the resource exclusion process is performed in the adjusted resource selection window (i.e., the second resource selection window). If the resource pool does not enable resource selection window switching and / or the priority of the SL PRS resource is equal to or lower than the preset threshold, the RSRP threshold is raised.

[0169] By using the solution of the embodiment of the present application, the first terminal can determine the resource selection window and perform resource selection according to the SCI. Therefore, the first terminal and the second terminal performing RTT positioning can select appropriate resources to ensure RTT positioning performance.

[0170] In an embodiment of the present application, the SCI also includes a first indication, wherein the first indication is used to indicate a transmission party of one or more reserved SL PRS resources; wherein the transmission party includes the first terminal or the second terminal, and the one or more reserved SL PRS resources are SL PRS resources other than the current SL PRS resources, and include the last SL PRS resource. Optionally, the first indication is indicated by N1-1 bits, where N1 represents the total number of reserved SL PRS resources, and takes a value of 2 or 3.

[0171] For example, an N1-1bit (N1=2 or 3, indicating the total number of reserved SL PRS resources) SL PRS resource transmission indication may be added to the SCI associated with the SL PRS sent by the second terminal (Tx UE) to indicate to the first terminal (Rx UE) the transmission party of the N1-1 SL PRS resources reserved by the second terminal. The transmission party may be the first terminal or the second terminal.

[0172] For example, as shown in Figure 3(a), if N1=2, "0" means that the SL PRS resource is transmitted by the second terminal, and "1" means that the SL PRS resource is recommended by the second terminal (the resource is only used for recommendation, that is, the first terminal may not select the recommended resource for transmission) to the first terminal for transmission.

[0173] For example, as shown in Figure 3(b), if N1=3, "00" means that the second terminal uses the first reserved resources for transmission, and the second reserved resources are recommended (the resources are only used for recommendation, that is, the first terminal may not select the recommended resources for transmission) to the first terminal for transmission; "10" means that the first reserved resources are recommended to the first terminal for transmission, and the second terminal uses the second reserved resources for transmission; "11" means that the two reserved SL PRS resources are recommended by the second terminal to the first terminal for transmission.

[0174] Optionally, if the transmitting party is the first terminal, the first terminal may also report a second indication, wherein the second indication is used to indicate resource information of the one or more reserved SL PRS resources and information of a candidate resource set obtained after resource selection.

[0175] Specifically, if the transmission party corresponding to one or more SL PRS reserved resources is indicated as the first terminal, the resource information of the one or more reserved SL PRS resources is recorded as S_1, and the candidate resource set reported to the Medium Access Control (MAC) layer by the first terminal after performing resource exclusion is S_A (i.e., the information of the candidate resource set obtained after resource selection), then the MAC layer gives priority to the resources in S_1∩S_A.

[0176] In an embodiment of the present application, one or more reserved SL PRS resources are indicated by TRIV and Resource ID. In a shared resource pool, since SL PRS is sent together with PSSCH, the existing frequency domain resource indication value (Frequency Resource Indicator Value, FRIV) and TRIV indication method can be reused. For a dedicated resource pool, the bandwidth of the SL PRS resource is equal to the bandwidth of the dedicated RP (dedicated RP (ResourcePool)), and its occupied time domain position (starting symbol + length) and frequency domain parameters (comb size (comb size) + RE offset (RE (Resource element, resource unit) offset)) can be mapped one by one to the position of the PSCCH to which it is associated, so it can be indicated by combining TRIV (time domain unchanged) with Resource ID (resource identification), where the resource ID can uniquely determine a SL PRS transmission pattern in a time slot.

[0177] like Figure 4 As shown, the resource IDs in the dedicated resource pool are 0 to 5 (a total of N = 6 patterns), and the resource ID in the SCI indicates the number of bits. If the SCIresource ID indication field is 010100, it means that the patterns of the two SL PRS reserved resources other than the current transmission resources are Offset 2 and Offset 4 respectively.

[0178] See also Figure 5 , Figure 5 is a flowchart of an information processing method provided in an embodiment of the present application, which is applied to a second terminal, such as Figure 5 As shown, the following steps are included:

[0179] Step 501: Sending an SCI to instruct a first terminal to determine at least one resource selection window according to a first time slot and / or a time slot where a last reserved resource of the SCI is located, and to perform resource selection within the at least one resource selection window;

[0180] The SCI is located in the first time slot, and the SCI is associated with SL PRS transmission, or the SCI is associated with SL PRS transmission and PSSCH transmission, and the first terminal is the target terminal corresponding to the SL PRS resource associated with the SCI.

[0181] The one or more reserved SL PRS resources are indicated by TRIV and Resource ID. The specific indication method can refer to the description of the above method embodiment.

[0182] Optionally, the SCI also includes a first indication, wherein the first indication is used to indicate a transmission party of one or more reserved SL PRS resources; wherein the transmission party includes the first terminal or the second terminal, and the one or more reserved SL PRS resources are SL PRS resources other than the current SL PRS resources, and include the last SLPRS resource. For example, the first indication is indicated by N1-1 bits, where N1 represents the total number of reserved SL PRS resources and takes a value of 2 or 3.

[0183] By using the solution of the embodiment of the present application, the first terminal can determine the resource selection window and perform resource selection according to the SCI. Therefore, the first terminal and the second terminal performing RTT positioning can select appropriate resources to ensure RTT positioning performance.

[0184] In the embodiment of the present application, the existing resource reservation mechanism is enhanced, that is, the first terminal determines the resource selection window according to the reserved SL PRS resources of the second terminal, and further, the transmission indication of the reserved SL PRS resources can be added to the SCI sent by the second terminal. Figure 6 , Figure 6 is a flow chart of the information processing method provided in the embodiment of the present application, such as Figure 6 As shown, the following steps are included:

[0185] Step 601: The second terminal sends SCI to the first terminal. For further explanation of SCI, please refer to the description of the above method embodiment.

[0186] Step 602: The first terminal determines a resource selection window according to the SCI and performs a resource exclusion process. For further explanation of the resource selection window, please refer to the description of the above method embodiment.

[0187] Step 603: The first terminal reports a second indication to the MAC layer, wherein the second indication is used to indicate resource information of the one or more reserved SL PRS resources and information of the candidate resource set obtained after resource selection. The MAC layer may select a sending resource from the candidate resource set obtained after resource selection, or may select a resource from the intersection of resources of the one or more reserved SL PRS resources and the candidate resource set obtained after resource selection.

[0188] It can be seen from the above description that the solution of the embodiment of the present application is applicable to the RTT-type SL positioning method, which can ensure that suitable resources are selected between two terminals performing RTT-type SL positioning, thereby ensuring RTT positioning performance.

[0189] See also Figure 7 , Figure 7 is a structural diagram of an information processing device provided in an embodiment of the present application, which is applied to a first terminal. Figure 7 As shown, the information processing device includes:

[0190] A first receiving module 701 is used to receive an SCI, wherein the SCI is located in a first time slot and the SCI is associated with an SLPRS transmission, or the SCI is associated with an SL PRS transmission and a PSSCH transmission; a first determining module 702 is used to determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located; a first selecting module 703 is used to perform resource selection within the at least one resource selection window;

[0191] Among them, the first terminal is the target terminal corresponding to the SL PRS resources associated with the SCI.

[0192] Optionally, the first determining module is further configured to perform one or more of the following:

[0193] Determine a resource selection window according to the first time slot and the time slot where the last reserved resource of the SCI is located;

[0194] Determine a resource selection window according to the first time slot, the time slot where the last reserved resource of the SCI is located, and the first delay parameter;

[0195] A resource selection window is determined according to the first time slot or the time slot where the last reserved resource of the SCI is located, and the second delay parameter.

[0196] Optionally, the first determining module is further used for:

[0197] The time interval between the first time slot and the time slot where the last reserved resource of the SCI is located is used as the resource selection window.

[0198] Optionally, the first determining module is further used for:

[0199] The time interval between the first time slot and the first moment is used as the resource selection window, wherein the first moment is the time slot corresponding to the sum of the time slot where the last reserved resource of the SCI is located and the first delay parameter.

[0200] Optionally, the first determining module is further used for:

[0201] Using the time interval between the first time slot and a second moment as the resource selection window, wherein the second moment is a time slot corresponding to the sum of the first time slot and a second delay parameter; or

[0202] The time interval between the time slot where the last reserved resource of the SCI is located and the second moment is used as the resource selection window, wherein the second moment is the time slot corresponding to the sum of the time slot where the last reserved resource of the SCI is located and the second delay parameter.

[0203] Optionally, the first selection module is further used to:

[0204] Starting from the smallest resource selection window in the at least one resource selection window, the following process is performed:

[0205] S1. Select resources in a first resource selection window and execute a resource exclusion process; the first resource selection window is one of the at least one resource selection window;

[0206] S2. When the number of candidate resources remaining in the first resource selection window is less than a preset threshold, if the resource pool enables resource selection window switching and the priority of the SL PRS resource is higher than the preset threshold, select a second resource selection window from the at least one resource selection window, wherein the size of the second resource selection window is larger than the size of the first resource selection window;

[0207] S3. Perform resource selection in the second resource selection window; if the second resource selection window is the largest resource selection window among the at least one resource selection window, and if the number of candidate resources remaining in the second resource selection window is less than a preset threshold, raise the RSRP threshold and execute S1-S3; if the second resource selection window is not the largest resource selection window among the at least one resource selection window, and if the number of candidate resources remaining in the second resource selection window is less than a preset threshold, use the second resource selection window as the first resource selection window and execute S2-S3;

[0208] or

[0209] The following process is performed on the at least one resource selection window:

[0210] S4, selecting resources in a first resource selection window and executing a resource exclusion process; the first resource selection window is one of the at least one resource selection window;

[0211] S5. When the number of candidate resources remaining in the first resource selection window is less than the preset threshold, if the resource pool does not enable resource selection window switching and / or the priority of SL PRS resources is lower than or equal to the preset threshold, raise the reference signal received power RSRP threshold in the first resource selection window.

[0212] Optionally, the SCI also includes a first indication, wherein the first indication is used to indicate a transmission party of one or more reserved SL PRS resources;

[0213] The transmitting party includes the first terminal or the second terminal, and the one or more reserved SL PRS resources are SL PRS resources other than the current SL PRS resources and include the last SL PRS resource.

[0214] Optionally, the first indication is indicated by N1-1 bits, where N1 represents the total number of reserved SL PRS resources and has a value of 2 or 3.

[0215] Optionally, the device may further include:

[0216] The first sending module is used to report a second indication if the transmitting party is the first terminal, wherein the second indication is used to indicate resource information of the one or more reserved SL PRS resources and information of a candidate resource set obtained after resource selection.

[0217] Optionally, one or more reserved SL PRS resources are indicated by TRIV and Resource ID.

[0218] The device provided in the embodiment of the present application can execute the above method embodiment, and its implementation principle and technical effect are similar, so this embodiment will not be repeated here.

[0219] See also Figure 8 , Figure 8 is a structural diagram of an information processing device provided in an embodiment of the present application, which is applied to a second terminal. Figure 8 As shown, the information processing device includes:

[0220] A first sending module 801 is used to send an SCI, which is used to instruct the first terminal to determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located, and to perform resource selection in the at least one resource selection window;

[0221] The SCI is located in the first time slot, and the SCI is associated with a direct link positioning reference signal SL PRS transmission, or the SCI is associated with SL PRS transmission and PSSCH transmission, and the first terminal is the target terminal corresponding to the SL PRS resource associated with the SCI.

[0222] Optionally, the SCI further includes a first indication, wherein the first indication is used to indicate a transmission party of one or more reserved SL PRS resources;

[0223] The transmitting party includes the first terminal or the second terminal, and the one or more reserved SLPRS resources are SL PRS resources other than the current SL PRS resources and include the last SL PRS resource.

[0224] The first indication is indicated by N1-1 bits, N1 indicates that the reserved SL PRS is pressable, and one or more reserved SL PRS resources are indicated by TRIV and Resource ID.

[0225] The device provided in the embodiment of the present application can execute the above method embodiment, and its implementation principle and technical effect are similar, so this embodiment will not be repeated here.

[0226] See also Fig. 9 , Fig. 9 is a structural diagram of an information processing device provided in an embodiment of the present application, which is applied to a first terminal. Fig. 9 As shown, the information processing device includes: a processor 901 and a transceiver 902;

[0227] The transceiver 902 is configured to receive an SCI, wherein the SCI is located in a first time slot and the SCI is associated with an SLPRS transmission, or the SCI is associated with an SL PRS transmission and a PSSCH transmission;

[0228] The processor 901 is configured to determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located; and perform resource selection in the at least one resource selection window;

[0229] Among them, the first terminal is the target terminal corresponding to the SL PRS resources associated with the SCI.

[0230] Optionally, the processor 901 is further configured to perform one or more of the following:

[0231] Determine a resource selection window according to the first time slot and the time slot where the last reserved resource of the SCI is located;

[0232] Determine a resource selection window according to the first time slot, the time slot where the last reserved resource of the SCI is located, and the first delay parameter;

[0233] A resource selection window is determined according to the first time slot or the time slot where the last reserved resource of the SCI is located, and the second delay parameter.

[0234] Optionally, the processor 901 is further configured to: use a time interval between the first time slot and a time slot where a last reserved resource of the SCI is located as the resource selection window.

[0235] Optionally, the processor 901 is further configured to:

[0236] The time interval between the first time slot and the first moment is used as the resource selection window, wherein the first moment is the time slot corresponding to the sum of the time slot where the last reserved resource of the SCI is located and the first delay parameter.

[0237] Optionally, the processor 901 is further configured to:

[0238] Using the time interval between the first time slot and a second moment as the resource selection window, wherein the second moment is a time slot corresponding to the sum of the first time slot and a second delay parameter; or

[0239] The time interval between the time slot where the last reserved resource of the SCI is located and the second moment is used as the resource selection window, wherein the second moment is the time slot corresponding to the sum of the time slot where the last reserved resource of the SCI is located and the second delay parameter.

[0240] Optionally, the processor 901 is further configured to:

[0241] Starting from the smallest resource selection window in the at least one resource selection window, the following process is performed:

[0242] S1. Select resources in a first resource selection window and execute a resource exclusion process; the first resource selection window is one of the at least one resource selection window;

[0243] S2. When the number of candidate resources remaining in the first resource selection window is less than a preset threshold, if the resource pool enables resource selection window switching and the priority of the SL PRS resource is higher than the preset threshold, select a second resource selection window from the at least one resource selection window, wherein the size of the second resource selection window is larger than the size of the first resource selection window;

[0244] S3. Perform resource selection in the second resource selection window; if the second resource selection window is the largest resource selection window among the at least one resource selection window, and if the number of candidate resources remaining in the second resource selection window is less than a preset threshold, raise the RSRP threshold and execute S1-S3; if the second resource selection window is not the largest resource selection window among the at least one resource selection window, and if the number of candidate resources remaining in the second resource selection window is less than a preset threshold, use the second resource selection window as the first resource selection window and execute S2-S3;

[0245] or

[0246] The following process is performed on the at least one resource selection window:

[0247] S4, selecting resources in a first resource selection window and executing a resource exclusion process; the first resource selection window is one of the at least one resource selection window;

[0248] S5. When the number of candidate resources remaining in the first resource selection window is less than the preset threshold, if the resource pool does not enable resource selection window switching and / or the priority of SL PRS resources is lower than or equal to the preset threshold, raise the reference signal received power RSRP threshold in the first resource selection window.

[0249] Optionally, the SCI also includes a first indication, wherein the first indication is used to indicate a transmission party of one or more reserved SL PRS resources;

[0250] The transmitting party includes the first terminal or the second terminal, and the one or more reserved SL PRS resources are SL PRS resources other than the current SL PRS resources and include the last SL PRS resource.

[0251] Optionally, the first indication is indicated by N1-1 bits, where N1 represents the total number of reserved SL PRS resources and has a value of 2 or 3.

[0252] Optionally, the processor 901 is further configured to:

[0253] If the transmitting party is the first terminal, a second indication is reported, wherein the second indication is used to indicate resource information of the one or more reserved SL PRS resources and information of a candidate resource set obtained after resource selection.

[0254] Optionally, one or more reserved SL PRS resources are indicated by TRIV and Resource ID.

[0255] The device provided in the embodiment of the present application can execute the above method embodiment, and its implementation principle and technical effect are similar, so this embodiment will not be repeated here.

[0256] See also Fig.10 , Fig.10 is a structural diagram of an information processing device provided in an embodiment of the present application, which is applied to a second terminal. Fig.10 As shown, the information processing device includes: a processor 1001 and a transceiver 1002;

[0257] The transceiver 1002 is used to send the SCI, which is used to instruct the first terminal to determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located, and to perform resource selection in the at least one resource selection window;

[0258] The SCI is located in the first time slot, and the SCI is associated with a direct link positioning reference signal SL PRS transmission, or the SCI is associated with SL PRS transmission and PSSCH transmission, and the first terminal is the target terminal corresponding to the SL PRS resource associated with the SCI.

[0259] Optionally, the SCI also includes a first indication, wherein the first indication is used to indicate a transmission party of one or more reserved SL PRS resources;

[0260] The transmitting party includes the first terminal or the second terminal, and the one or more reserved SLPRS resources are SL PRS resources other than the current SL PRS resources and include the last SL PRS resource.

[0261] Optionally, the first indication is indicated by N1-1 bits, where N1 represents the total number of reserved SL PRS resources and has a value of 2 or 3.

[0262] Optionally, one or more reserved SL PRS resources are indicated by TRIV and a resource identifier Resource ID.

[0263] The device provided in the embodiment of the present application can execute the above method embodiment, and its implementation principle and technical effect are similar, so this embodiment will not be repeated here.

[0264] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0265] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0266] An embodiment of the present application provides a communication device, including: a memory, a processor, and a program stored in the memory and executable on the processor; the processor is used to read the program in the memory to implement the steps in the information processing method described above.

[0267] The embodiment of the present application also provides a readable storage medium, on which a program is stored. When the program is executed by the processor, each process of the above-mentioned information processing method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. Among them, the readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.

[0268] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0269] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD), and includes a number of instructions for a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0270] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An information processing method, applied to a first terminal, characterized in that: include: Receive direct link control information SCI, wherein the SCI is located in the first time slot, and the SCI is associated with direct link positioning reference signal SL PRS transmission, or the SCI is associated with SL PRS transmission and physical direct link shared channel PSSCH transmission; Determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located; Performing resource selection within the at least one resource selection window; Among them, the first terminal is the target terminal corresponding to the SL PRS resources associated with the SCI.

2. The method according to claim 1, characterized in that Determining at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located includes one or more of the following: Determine a resource selection window according to the first time slot and the time slot where the last reserved resource of the SCI is located; Determine a resource selection window according to the first time slot, the time slot where the last reserved resource of the SCI is located, and the first delay parameter; A resource selection window is determined according to the first time slot or the time slot where the last reserved resource of the SCI is located, and the second delay parameter.

3. The method according to claim 2, characterized in that The determining of the resource selection window according to the first time slot and the time slot where the last reserved resource of the SCI is located comprises: The time interval between the first time slot and the time slot where the last reserved resource of the SCI is located is used as the resource selection window.

4. The method according to claim 2, characterized in that: The determining of the resource selection window according to the first time slot, the time slot where the last reserved resource of the SCI is located, and the first delay parameter includes: The time interval between the first time slot and the first moment is used as the resource selection window, wherein the first moment is the time slot corresponding to the sum of the time slot where the last reserved resource of the SCI is located and the first delay parameter.

5. The method according to claim 2, characterized in that: The determining of the resource selection window according to the first time slot or the time slot where the last reserved resource of the SCI is located, and the second delay parameter, comprises: Using the time interval between the first time slot and a second moment as the resource selection window, wherein the second moment is a time slot corresponding to the sum of the first time slot and a second delay parameter; or The time interval between the time slot where the last reserved resource of the SCI is located and the second moment is used as the resource selection window, wherein the second moment is the time slot corresponding to the sum of the time slot where the last reserved resource of the SCI is located and the second delay parameter.

6. The method according to claim 1, characterized in that The performing resource selection in the at least one resource selection window comprises: Starting from the smallest resource selection window in the at least one resource selection window, the following process is performed: S1. Select resources in a first resource selection window and execute a resource exclusion process; the first resource selection window is one of the at least one resource selection window; S2. When the number of candidate resources remaining in the first resource selection window is less than a preset threshold, if the resource pool enables resource selection window switching and the priority of the SL PRS resource is higher than the preset threshold, select a second resource selection window from the at least one resource selection window, wherein the size of the second resource selection window is larger than the size of the first resource selection window; S3. Perform resource selection in the second resource selection window; if the second resource selection window is the largest resource selection window among the at least one resource selection window, and if the number of candidate resources remaining in the second resource selection window is less than a preset threshold, raise the RSRP threshold and execute S1-S3; or, if the second resource selection window is not the largest resource selection window among the at least one resource selection window, and if the number of candidate resources remaining in the second resource selection window is less than a preset threshold, use the second resource selection window as the first resource selection window and execute S2-S3; or The following process is performed on the at least one resource selection window: S4, selecting resources in a first resource selection window and executing a resource exclusion process; the first resource selection window is one of the at least one resource selection window; S5. When the number of candidate resources remaining in the first resource selection window is less than the preset threshold, if the resource pool does not enable resource selection window switching and / or the priority of SL PRS resources is lower than or equal to the preset threshold, raise the reference signal received power RSRP threshold in the first resource selection window.

7. The method according to claim 1, characterized in that The SCI also includes a first indication, wherein the first indication is used to indicate a transmission party of one or more reserved SL PRS resources; The transmitting party includes the first terminal or the second terminal, and the one or more reserved SL PRS resources are SL PRS resources other than the current SL PRS resources and include the last SL PRS resource.

8. The method according to claim 7, characterized in that The first indication is indicated by N1-1 bits, where N1 represents the total number of reserved SL PRS resources and has a value of 2 or 3.

9. The method according to claim 7, characterized in that: The method further comprises: If the transmitting party is the first terminal, a second indication is reported, wherein the second indication is used to indicate resource information of the one or more reserved SL PRS resources and information of a candidate resource set obtained after resource selection.

10. The method according to any one of claims 1 to 9, characterized in that: One or more reserved SL PRS resources are indicated by a time domain resource indication TRIV and a resource identifier Resource ID.

11. An information processing method, applied to a second terminal, characterized in that: include: Sending an SCI to instruct the first terminal to determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located, and to perform resource selection within the at least one resource selection window; The SCI is located in the first time slot, and the SCI is associated with SL PRS transmission, or the SCI is associated with SLPRS transmission and PSSCH transmission, and the first terminal is the target terminal corresponding to the SL PRS resource associated with the SCI.

12. The method according to claim 11, characterized in that The SCI also includes a first indication, wherein the first indication is used to indicate a transmission party of one or more reserved SL PRS resources; The transmitting party includes the first terminal or the second terminal, and the one or more reserved SL PRS resources are SL PRS resources other than the current SL PRS resources and include the last SL PRS resource.

13. The method according to claim 12, characterized in that The first indication is indicated by N1-1 bits, where N1 represents the total number of reserved SL PRS resources and has a value of 2 or 3.

14. The method according to any one of claims 11 to 13, characterized in that: One or more reserved SL PRS resources are indicated by TRIV and Resource ID.

15. An information processing device, applied to a first terminal, characterized in that: include: A first receiving module, configured to receive an SCI, wherein the SCI is located in a first time slot and the SCI is associated with an SL PRS transmission, or the SCI is associated with an SL PRS transmission and a PSSCH transmission; A first determining module, configured to determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located; A first selection module, configured to select resources within the at least one resource selection window; Among them, the first terminal is the target terminal corresponding to the SL PRS resources associated with the SCI.

16. An information processing device, applied to a second terminal, characterized in that: include: A first sending module, used to send an SCI, used to instruct the first terminal to determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located, and to perform resource selection in the at least one resource selection window; The SCI is located in the first time slot, and the SCI is associated with a direct link positioning reference signal SL PRS transmission, or the SCI is associated with SL PRS transmission and PSSCH transmission, and the first terminal is the target terminal corresponding to the SL PRS resource associated with the SCI.

17. An information processing device, applied to a first terminal, characterized in that: include: processors and transceivers; The transceiver is configured to receive an SCI, wherein the SCI is located in a first time slot and the SCI is associated with an SL PRS transmission, or the SCI is associated with an SL PRS transmission and a PSSCH transmission; The processor is configured to determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located; and perform resource selection in the at least one resource selection window; Among them, the first terminal is the target terminal corresponding to the SL PRS resources associated with the SCI.

18. An information processing device, applied to a second terminal, characterized in that: include: processors and transceivers; The transceiver is used to send the SCI, which is used to instruct the first terminal to determine at least one resource selection window according to the first time slot and / or the time slot where the last reserved resource of the SCI is located, and to perform resource selection in the at least one resource selection window; The SCI is located in the first time slot, and the SCI is associated with a direct link positioning reference signal SL PRS transmission, or the SCI is associated with SL PRS transmission and PSSCH transmission, and the first terminal is the target terminal corresponding to the SL PRS resource associated with the SCI.

19. A communication device comprising: A memory, a processor, and a program stored in the memory and executable on the processor; wherein the processor is used to read the program in the memory to implement the steps of the information processing method as described in any one of claims 1 to 14.

20. A readable storage medium for storing a program, characterized in that: When the program is executed by a processor, the steps of the information processing method according to any one of claims 1 to 14 are implemented.

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