Information indication method and device, information receiving method and device and storage medium

Abstract

Provided in the present application are an information indication method, an information receiving method and apparatus, and a storage medium, the information indication method comprising: a first communication device sending first control information to a terminal, the first control information comprising: first indication information for indicating whether direct link transmission associated with the first control information comprises SL PRS transmission; the second indication information is used for indicating SL PRS resource information carried in the first control information; the third indication information is used for indicating SL PRS measurement report information carried in the PSSCH associated with the first control information; the fourth indication information is used for indicating whether the PSSCH associated with the first control information bears the SL data or not; and the fifth indication information is used for indicating the SL PRS resource pool type information configured by the first communication equipment and / or the SL PRS resource pool type information configured by the terminal.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to an information indication method, an information receiving method, a device and a storage medium. Background Art

[0002] In the existing New Radio (NR) positioning technology, downlink positioning reference signals and uplink positioning reference signals are defined in the air interface between the base station and the terminal to complete the terminal positioning based on the downlink or uplink positioning reference signals. Considering the relative positioning between terminals, that is, the need for direct link positioning, a direct link positioning reference signal (sidelink Positioning Reference Signal, SL PRS) transmitted between terminals is also introduced, so that the terminal does not rely on the downlink positioning reference signal or the uplink positioning reference signal, but directly uses the SL-PRS to complete the relative positioning process between terminals.

[0003] Currently, there is no clear indication scheme for SL-PRS related information in direct link positioning. Summary of the invention

[0004] The present application provides an information indication method, an information receiving method, an apparatus and a storage medium, which are used to solve the problem of how to indicate SL-PRS related information in direct link positioning to a terminal.

[0005] In a first aspect, the present application provides an information indication method, applied to a first communication device, comprising:

[0006] Sending first control information to the terminal, where the first control information includes one or more of the following indication information:

[0007] first indication information, where the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission;

[0008] second indication information, where the second indication information is used to indicate the SL PRS resource information carried in the first control information;

[0009] third indication information, where the third indication information is used to indicate SL PRS measurement report information carried in a physical direct link shared channel PSSCH associated with the first control information;

[0010] Fourth indication information, where the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data;

[0011] The fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device and / or the SL PRS resource pool type information that the terminal should configure.

[0012] In some embodiments, the first indication information indicates any of the following via at least one bit:

[0013] The through link transmission associated with the first control information does not include SL PRS transmission;

[0014] The direct link transmission associated with the first control information includes SL PRS transmission.

[0015] In some embodiments, the first indication information indicates any of the following via at least 2 bits:

[0016] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool;

[0017] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool, but does not include SL PRS transmission in a shared resource pool;

[0018] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool, but includes SL PRS transmission in a shared resource pool;

[0019] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool.

[0020] In some embodiments, the second indication information is used to indicate any of the following:

[0021] The SL PRS resource information carried in the first control information is a SL PRS resource identifier ID;

[0022] The SL PRS resource information carried in the first control information is SL PRS time-frequency resource information.

[0023] In some embodiments, each of the SL PRS resource IDs is used to uniquely determine the resource occupancy of a SL PRS resource in a time slot.

[0024] In some embodiments, the SL PRS time-frequency resource information includes one or more of the following:

[0025] Information used to indicate the granularity of SL PRS resource allocation;

[0026] Information used to indicate SL PRS time domain resource allocation;

[0027] Information used to indicate SL PRS frequency domain resource allocation;

[0028] Information used to indicate SL PRS resource unit offset RE offset allocation.

[0029] In some embodiments, the granularity of the SL PRS resource allocation includes one or more of the following:

[0030] Subchannel level; resource block RB level; SL PRS resource level; SL PRS resource set level.

[0031] In some embodiments, the information for indicating SL PRS time domain resource allocation includes one or more of the following:

[0032] The starting time domain unit index number of the SL PRS resource; the ending time domain unit index number of the SL PRS resource; the number of continuous time domain units of the SL PRS resource.

[0033] In some embodiments, the information for indicating SL PRS frequency domain resource allocation includes one or more of the following:

[0034] The starting frequency domain unit index number of the SL PRS resource; the ending frequency domain unit index number of the SL PRS resource; the number of continuous frequency domain units of the SL PRS resource.

[0035] In some embodiments, the information indicating SL PRS RE offset allocation includes one or more of the following:

[0036] RE offset of SL PRS resources; Comb size of SL PRS resources.

[0037] In some embodiments, the third indication information indicates any of the following items through at least 2 bits:

[0038] The PSSCH associated with the first control information does not carry an SL PRS measurement report;

[0039] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the shared resource pool;

[0040] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the dedicated resource pool;

[0041] The SL PRS measurement report carried in the PSSCH associated with the first control information includes a measurement report corresponding to the SL PRS in the shared resource pool and a measurement report corresponding to the SL PRS in the dedicated resource pool.

[0042] In some embodiments, the third indication information further includes one or more of the following:

[0043] SLPP session ID; measurement report configuration information; corresponding PSSCH resource reservation information for measurement report.

[0044] In some embodiments, when the PSSCH associated with the first control information does not carry SL data, the PSSCH associated with the first control information carries a media access control layer control element MAC CE and a MAC header, and the MACCE or the MAC header contains a layer 2 source ID.

[0045] In some embodiments, the SL PRS resource pool type information configured by the first communication device includes any one of the following:

[0046] The SL PRS resource pool configured by the first communication device is a shared resource pool;

[0047] The SL PRS resource pool configured by the first communication device is a dedicated resource pool;

[0048] The SL PRS resource pool configured by the first communication device includes a shared resource pool and a dedicated resource pool.

[0049] In some embodiments, the SL PRS resource pool type information that the terminal should configure includes any of the following:

[0050] The terminal should be configured with a shared resource pool;

[0051] The terminal should be configured with a dedicated resource pool;

[0052] The terminal should be configured with a shared resource pool and a dedicated resource pool.

[0053] In some embodiments, the first control information further includes one or more of the following:

[0054] Source terminal ID; target terminal ID; resource reservation period; SL-PRS priority; broadcast type; SL-PRS request; terminal type.

[0055] In some embodiments, the dedicated resource pool is a resource pool dedicated to SL PRS transmission, and the shared resource pool is a resource pool shared by SL PRS transmission and SL data transmission.

[0056] In some embodiments, the first control information is carried by one or more of the following carriers:

[0057] First-level direct link control information SCI; second-level SCI; downlink control information DCI; radio resource control RRC signaling; SLPP signaling.

[0058] In a second aspect, the present application also provides an information receiving method, applied to a terminal, comprising:

[0059] Receive first control information sent by a first communication device, where the first control information includes one or more of the following indication information:

[0060] first indication information, where the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission;

[0061] second indication information, where the second indication information is used to indicate the SL PRS resource information carried in the first control information;

[0062] third indication information, where the third indication information is used to indicate SL PRS measurement report information carried in a physical direct link shared channel PSSCH associated with the first control information;

[0063] Fourth indication information, where the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data;

[0064] The fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device and / or the SL PRS resource pool type information that the terminal should configure.

[0065] In some embodiments, the first indication information indicates any of the following via at least one bit:

[0066] The through link transmission associated with the first control information does not include SL PRS transmission;

[0067] The direct link transmission associated with the first control information includes SL PRS transmission.

[0068] In some embodiments, the first indication information indicates any of the following via at least 2 bits:

[0069] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool;

[0070] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool, but does not include SL PRS transmission in a shared resource pool;

[0071] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool, but includes SL PRS transmission in a shared resource pool;

[0072] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool.

[0073] In some embodiments, the second indication information is used to indicate any of the following:

[0074] The SL PRS resource information carried in the first control information is a SL PRS resource identifier ID;

[0075] The SL PRS resource information carried in the first control information is SL PRS time-frequency resource information.

[0076] In some embodiments, each of the SL PRS resource IDs is used to uniquely determine the resource occupancy of a SL PRS resource in a time slot.

[0077] In some embodiments, the SL PRS time-frequency resource information includes one or more of the following:

[0078] Information used to indicate the granularity of SL PRS resource allocation;

[0079] Information used to indicate SL PRS time domain resource allocation;

[0080] Information used to indicate SL PRS frequency domain resource allocation;

[0081] Information used to indicate SL PRS resource unit offset RE offset allocation.

[0082] In some embodiments, the granularity of the SL PRS resource allocation includes one or more of the following:

[0083] Subchannel level; resource block RB level; SL PRS resource level; SL PRS resource set level.

[0084] In some embodiments, the information for indicating SL PRS time domain resource allocation includes one or more of the following:

[0085] The starting time domain unit index number of the SL PRS resource; the ending time domain unit index number of the SL PRS resource; the number of continuous time domain units of the SL PRS resource.

[0086] In some embodiments, the information for indicating SL PRS frequency domain resource allocation includes one or more of the following:

[0087] The starting frequency domain unit index number of the SL PRS resource; the ending frequency domain unit index number of the SL PRS resource; the number of continuous frequency domain units of the SL PRS resource.

[0088] In some embodiments, the information indicating SL PRS RE offset allocation includes one or more of the following:

[0089] RE offset of SL PRS resources; Comb size of SL PRS resources.

[0090] In some embodiments, the third indication information indicates any of the following items through at least 2 bits:

[0091] The PSSCH associated with the first control information does not carry an SL PRS measurement report;

[0092] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the shared resource pool;

[0093] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the dedicated resource pool;

[0094] The SL PRS measurement report carried in the PSSCH associated with the first control information includes a measurement report corresponding to the SL PRS in the shared resource pool and a measurement report corresponding to the SL PRS in the dedicated resource pool.

[0095] In some embodiments, the third indication information further includes one or more of the following:

[0096] SLPP session ID; measurement report configuration information; corresponding PSSCH resource reservation information for measurement report.

[0097] In some embodiments, when the PSSCH associated with the first control information does not carry SL data, the PSSCH associated with the first control information carries a media access control layer control element MAC CE and a MAC header, and the MACCE or the MAC header contains a layer 2 source ID.

[0098] In some embodiments, the SL PRS resource pool type information configured by the first communication device includes any one of the following:

[0099] The SL PRS resource pool configured by the first communication device is a shared resource pool;

[0100] The SL PRS resource pool configured by the first communication device is a dedicated resource pool;

[0101] The SL PRS resource pool configured by the first communication device includes a shared resource pool and a dedicated resource pool.

[0102] In some embodiments, the SL PRS resource pool type information that the terminal should configure includes any of the following:

[0103] The terminal should be configured with a shared resource pool;

[0104] The terminal should be configured with a dedicated resource pool;

[0105] The terminal should be configured with a shared resource pool and a dedicated resource pool.

[0106] In some embodiments, the first control information further includes one or more of the following:

[0107] Source terminal ID; target terminal ID; resource reservation period; SL-PRS priority; broadcast type; SL-PRS request; terminal type.

[0108] In some embodiments, the dedicated resource pool is a resource pool dedicated to SL PRS transmission, and the shared resource pool is a resource pool shared by SL PRS transmission and SL data transmission.

[0109] In some embodiments, the first control information is carried by one or more of the following carriers:

[0110] First-level direct link control information SCI; second-level SCI; downlink control information DCI; radio resource control RRC signaling; SLPP signaling.

[0111] In a third aspect, the present application further provides a first communication device, including a memory, a transceiver, and a processor;

[0112] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0113] Sending first control information to the terminal, where the first control information includes one or more of the following indication information:

[0114] first indication information, where the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission;

[0115] second indication information, where the second indication information is used to indicate the SL PRS resource information carried in the first control information;

[0116] third indication information, where the third indication information is used to indicate SL PRS measurement report information carried in a physical direct link shared channel PSSCH associated with the first control information;

[0117] Fourth indication information, where the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data;

[0118] The fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device and / or the SL PRS resource pool type information that the terminal should configure.

[0119] In some embodiments, the first indication information indicates any of the following via at least one bit:

[0120] The through link transmission associated with the first control information does not include SL PRS transmission;

[0121] The direct link transmission associated with the first control information includes SL PRS transmission.

[0122] In some embodiments, the first indication information indicates any of the following via at least 2 bits:

[0123] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool;

[0124] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool, but does not include SL PRS transmission in a shared resource pool;

[0125] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool, but includes SL PRS transmission in a shared resource pool;

[0126] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool.

[0127] In some embodiments, the second indication information is used to indicate any of the following:

[0128] The SL PRS resource information carried in the first control information is a SL PRS resource identifier ID;

[0129] The SL PRS resource information carried in the first control information is SL PRS time-frequency resource information.

[0130] In some embodiments, each of the SL PRS resource IDs is used to uniquely determine the resource occupancy of a SL PRS resource in a time slot.

[0131] In some embodiments, the SL PRS time-frequency resource information includes one or more of the following:

[0132] Information used to indicate the granularity of SL PRS resource allocation;

[0133] Information used to indicate SL PRS time domain resource allocation;

[0134] Information used to indicate SL PRS frequency domain resource allocation;

[0135] Information used to indicate SL PRS resource unit offset RE offset allocation.

[0136] In some embodiments, the granularity of the SL PRS resource allocation includes one or more of the following:

[0137] Subchannel level; resource block RB level; SL PRS resource level; SL PRS resource set level.

[0138] In some embodiments, the information for indicating SL PRS time domain resource allocation includes one or more of the following:

[0139] The starting time domain unit index number of the SL PRS resource; the ending time domain unit index number of the SL PRS resource; the number of continuous time domain units of the SL PRS resource.

[0140] In some embodiments, the information for indicating SL PRS frequency domain resource allocation includes one or more of the following:

[0141] The starting frequency domain unit index number of the SL PRS resource; the ending frequency domain unit index number of the SL PRS resource; the number of continuous frequency domain units of the SL PRS resource.

[0142] In some embodiments, the information indicating SL PRS RE offset allocation includes one or more of the following:

[0143] RE offset of SL PRS resources; Comb size of SL PRS resources.

[0144] In some embodiments, the third indication information indicates any of the following items through at least 2 bits:

[0145] The PSSCH associated with the first control information does not carry an SL PRS measurement report;

[0146] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the shared resource pool;

[0147] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the dedicated resource pool;

[0148] The SL PRS measurement report carried in the PSSCH associated with the first control information includes a measurement report corresponding to the SL PRS in the shared resource pool and a measurement report corresponding to the SL PRS in the dedicated resource pool.

[0149] In some embodiments, the third indication information further includes one or more of the following:

[0150] SLPP session ID; measurement report configuration information; corresponding PSSCH resource reservation information for measurement report.

[0151] In some embodiments, when the PSSCH associated with the first control information does not carry SL data, the PSSCH associated with the first control information carries a media access control layer control element MAC CE and a MAC header, and the MACCE or the MAC header contains a layer 2 source ID.

[0152] In some embodiments, the SL PRS resource pool type information configured by the first communication device includes any one of the following:

[0153] The SL PRS resource pool configured by the first communication device is a shared resource pool;

[0154] The SL PRS resource pool configured by the first communication device is a dedicated resource pool;

[0155] The SL PRS resource pool configured by the first communication device includes a shared resource pool and a dedicated resource pool.

[0156] In some embodiments, the SL PRS resource pool type information that the terminal should configure includes any of the following:

[0157] The terminal should be configured with a shared resource pool;

[0158] The terminal should be configured with a dedicated resource pool;

[0159] The terminal should be configured with a shared resource pool and a dedicated resource pool.

[0160] In some embodiments, the first control information further includes one or more of the following:

[0161] Source terminal ID; target terminal ID; resource reservation period; SL-PRS priority; broadcast type; SL-PRS request; terminal type.

[0162] In some embodiments, the dedicated resource pool is a resource pool dedicated to SL PRS transmission, and the shared resource pool is a resource pool shared by SL PRS transmission and SL data transmission.

[0163] In some embodiments, the first control information is carried by one or more of the following carriers:

[0164] First-level direct link control information SCI; second-level SCI; downlink control information DCI; radio resource control RRC signaling; SLPP signaling.

[0165] In a fourth aspect, the present application further provides a terminal, including a memory, a transceiver, and a processor;

[0166] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0167] Receive first control information sent by a first communication device, where the first control information includes one or more of the following indication information:

[0168] first indication information, where the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission;

[0169] second indication information, where the second indication information is used to indicate the SL PRS resource information carried in the first control information;

[0170] third indication information, where the third indication information is used to indicate SL PRS measurement report information carried in a physical direct link shared channel PSSCH associated with the first control information;

[0171] Fourth indication information, where the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data;

[0172] The fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device and / or the SL PRS resource pool type information that the terminal should configure.

[0173] In some embodiments, the first indication information indicates any of the following via at least one bit:

[0174] The through link transmission associated with the first control information does not include SL PRS transmission;

[0175] The direct link transmission associated with the first control information includes SL PRS transmission.

[0176] In some embodiments, the first indication information indicates any of the following via at least 2 bits:

[0177] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool;

[0178] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool, but does not include SL PRS transmission in a shared resource pool;

[0179] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool, but includes SL PRS transmission in a shared resource pool;

[0180] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool.

[0181] In some embodiments, the second indication information is used to indicate any of the following:

[0182] The SL PRS resource information carried in the first control information is a SL PRS resource identifier ID;

[0183] The SL PRS resource information carried in the first control information is SL PRS time-frequency resource information.

[0184] In some embodiments, each of the SL PRS resource IDs is used to uniquely determine the resource occupancy of a SL PRS resource in a time slot.

[0185] In some embodiments, the SL PRS time-frequency resource information includes one or more of the following:

[0186] Information used to indicate the granularity of SL PRS resource allocation;

[0187] Information used to indicate SL PRS time domain resource allocation;

[0188] Information used to indicate SL PRS frequency domain resource allocation;

[0189] Information used to indicate SL PRS resource unit offset RE offset allocation.

[0190] In some embodiments, the granularity of the SL PRS resource allocation includes one or more of the following:

[0191] Subchannel level; resource block RB level; SL PRS resource level; SL PRS resource set level.

[0192] In some embodiments, the information for indicating SL PRS time domain resource allocation includes one or more of the following:

[0193] The starting time domain unit index number of the SL PRS resource; the ending time domain unit index number of the SL PRS resource; the number of continuous time domain units of the SL PRS resource.

[0194] In some embodiments, the information for indicating SL PRS frequency domain resource allocation includes one or more of the following:

[0195] The starting frequency domain unit index number of the SL PRS resource; the ending frequency domain unit index number of the SL PRS resource; the number of continuous frequency domain units of the SL PRS resource.

[0196] In some embodiments, the information indicating SL PRS RE offset allocation includes one or more of the following:

[0197] RE offset of SL PRS resources; Comb size of SL PRS resources.

[0198] In some embodiments, the third indication information indicates any of the following items through at least 2 bits:

[0199] The PSSCH associated with the first control information does not carry an SL PRS measurement report;

[0200] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the shared resource pool;

[0201] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the dedicated resource pool;

[0202] The SL PRS measurement report carried in the PSSCH associated with the first control information includes a measurement report corresponding to the SL PRS in the shared resource pool and a measurement report corresponding to the SL PRS in the dedicated resource pool.

[0203] In some embodiments, the third indication information further includes one or more of the following:

[0204] SLPP session ID; measurement report configuration information; corresponding PSSCH resource reservation information for measurement report.

[0205] In some embodiments, when the PSSCH associated with the first control information does not carry SL data, the PSSCH associated with the first control information carries a media access control layer control element MAC CE and a MAC header, and the MACCE or the MAC header contains a layer 2 source ID.

[0206] In some embodiments, the SL PRS resource pool type information configured by the first communication device includes any one of the following:

[0207] The SL PRS resource pool configured by the first communication device is a shared resource pool;

[0208] The SL PRS resource pool configured by the first communication device is a dedicated resource pool;

[0209] The SL PRS resource pool configured by the first communication device includes a shared resource pool and a dedicated resource pool.

[0210] In some embodiments, the SL PRS resource pool type information that the terminal should configure includes any of the following:

[0211] The terminal should be configured with a shared resource pool;

[0212] The terminal should be configured with a dedicated resource pool;

[0213] The terminal should be configured with a shared resource pool and a dedicated resource pool.

[0214] In some embodiments, the first control information further includes one or more of the following:

[0215] Source terminal ID; target terminal ID; resource reservation period; SL-PRS priority; broadcast type; SL-PRS request; terminal type.

[0216] In some embodiments, the dedicated resource pool is a resource pool dedicated to SL PRS transmission, and the shared resource pool is a resource pool shared by SL PRS transmission and SL data transmission.

[0217] In some embodiments, the first control information is carried by one or more of the following carriers:

[0218] First-level direct link control information SCI; second-level SCI; downlink control information DCI; radio resource control RRC signaling; SLPP signaling.

[0219] In a fifth aspect, the present application further provides an information indication device, comprising:

[0220] A sending unit, configured to send first control information to a terminal, where the first control information includes one or more of the following indication information:

[0221] first indication information, where the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission;

[0222] second indication information, where the second indication information is used to indicate the SL PRS resource information carried in the first control information;

[0223] third indication information, where the third indication information is used to indicate SL PRS measurement report information carried in a physical direct link shared channel PSSCH associated with the first control information;

[0224] Fourth indication information, where the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data;

[0225] The fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device and / or the SL PRS resource pool type information that the terminal should configure.

[0226] In some embodiments, the first indication information indicates any of the following via at least one bit:

[0227] The through link transmission associated with the first control information does not include SL PRS transmission;

[0228] The direct link transmission associated with the first control information includes SL PRS transmission.

[0229] In some embodiments, the first indication information indicates any of the following via at least 2 bits:

[0230] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool;

[0231] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool, but does not include SL PRS transmission in a shared resource pool;

[0232] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool, but includes SL PRS transmission in a shared resource pool;

[0233] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool.

[0234] In some embodiments, the second indication information is used to indicate any of the following:

[0235] The SL PRS resource information carried in the first control information is a SL PRS resource identifier ID;

[0236] The SL PRS resource information carried in the first control information is SL PRS time-frequency resource information.

[0237] In some embodiments, each of the SL PRS resource IDs is used to uniquely determine the resource occupancy of a SL PRS resource in a time slot.

[0238] In some embodiments, the SL PRS time-frequency resource information includes one or more of the following:

[0239] Information used to indicate the granularity of SL PRS resource allocation;

[0240] Information used to indicate SL PRS time domain resource allocation;

[0241] Information used to indicate SL PRS frequency domain resource allocation;

[0242] Information used to indicate SL PRS resource unit offset RE offset allocation.

[0243] In some embodiments, the granularity of the SL PRS resource allocation includes one or more of the following:

[0244] Subchannel level; resource block RB level; SL PRS resource level; SL PRS resource set level.

[0245] In some embodiments, the information for indicating SL PRS time domain resource allocation includes one or more of the following:

[0246] The starting time domain unit index number of the SL PRS resource; the ending time domain unit index number of the SL PRS resource; the number of continuous time domain units of the SL PRS resource.

[0247] In some embodiments, the information for indicating SL PRS frequency domain resource allocation includes one or more of the following:

[0248] The starting frequency domain unit index number of the SL PRS resource; the ending frequency domain unit index number of the SL PRS resource; the number of continuous frequency domain units of the SL PRS resource.

[0249] In some embodiments, the information indicating SL PRS RE offset allocation includes one or more of the following:

[0250] RE offset of SL PRS resources; Comb size of SL PRS resources.

[0251] In some embodiments, the third indication information indicates any of the following items through at least 2 bits:

[0252] The PSSCH associated with the first control information does not carry an SL PRS measurement report;

[0253] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the shared resource pool;

[0254] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the dedicated resource pool;

[0255] The SL PRS measurement report carried in the PSSCH associated with the first control information includes a measurement report corresponding to the SL PRS in the shared resource pool and a measurement report corresponding to the SL PRS in the dedicated resource pool.

[0256] In some embodiments, the third indication information further includes one or more of the following:

[0257] SLPP session ID; measurement report configuration information; corresponding PSSCH resource reservation information for measurement report.

[0258] In some embodiments, when the PSSCH associated with the first control information does not carry SL data, the PSSCH associated with the first control information carries a media access control layer control element MAC CE and a MAC header, and the MACCE or the MAC header contains a layer 2 source ID.

[0259] In some embodiments, the SL PRS resource pool type information configured by the first communication device includes any one of the following:

[0260] The SL PRS resource pool configured by the first communication device is a shared resource pool;

[0261] The SL PRS resource pool configured by the first communication device is a dedicated resource pool;

[0262] The SL PRS resource pool configured by the first communication device includes a shared resource pool and a dedicated resource pool.

[0263] In some embodiments, the SL PRS resource pool type information that the terminal should configure includes any of the following:

[0264] The terminal should be configured with a shared resource pool;

[0265] The terminal should be configured with a dedicated resource pool;

[0266] The terminal should be configured with a shared resource pool and a dedicated resource pool.

[0267] In some embodiments, the first control information further includes one or more of the following:

[0268] Source terminal ID; target terminal ID; resource reservation period; SL-PRS priority; broadcast type; SL-PRS request; terminal type.

[0269] In some embodiments, the dedicated resource pool is a resource pool dedicated to SL PRS transmission, and the shared resource pool is a resource pool shared by SL PRS transmission and SL data transmission.

[0270] In some embodiments, the first control information is carried by one or more of the following carriers:

[0271] First-level direct link control information SCI; second-level SCI; downlink control information DCI; radio resource control RRC signaling; SLPP signaling.

[0272] In a sixth aspect, the present application further provides an information receiving device, comprising:

[0273] A receiving unit, configured to receive first control information sent by a first communication device, wherein the first control information includes one or more of the following indication information:

[0274] first indication information, where the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission;

[0275] second indication information, where the second indication information is used to indicate the SL PRS resource information carried in the first control information;

[0276] third indication information, where the third indication information is used to indicate SL PRS measurement report information carried in a physical direct link shared channel PSSCH associated with the first control information;

[0277] Fourth indication information, where the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data;

[0278] The fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device and / or the SL PRS resource pool type information that the terminal should configure.

[0279] In some embodiments, the first indication information indicates any of the following via at least one bit:

[0280] The through link transmission associated with the first control information does not include SL PRS transmission;

[0281] The direct link transmission associated with the first control information includes SL PRS transmission.

[0282] In some embodiments, the first indication information indicates any of the following via at least 2 bits:

[0283] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool;

[0284] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool, but does not include SL PRS transmission in a shared resource pool;

[0285] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool, but includes SL PRS transmission in a shared resource pool;

[0286] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool.

[0287] In some embodiments, the second indication information is used to indicate any of the following:

[0288] The SL PRS resource information carried in the first control information is a SL PRS resource identifier ID;

[0289] The SL PRS resource information carried in the first control information is SL PRS time-frequency resource information.

[0290] In some embodiments, each of the SL PRS resource IDs is used to uniquely determine the resource occupancy of a SL PRS resource in a time slot.

[0291] In some embodiments, the SL PRS time-frequency resource information includes one or more of the following:

[0292] Information used to indicate the granularity of SL PRS resource allocation;

[0293] Information used to indicate SL PRS time domain resource allocation;

[0294] Information used to indicate SL PRS frequency domain resource allocation;

[0295] Information used to indicate SL PRS resource unit offset RE offset allocation.

[0296] In some embodiments, the granularity of the SL PRS resource allocation includes one or more of the following:

[0297] Subchannel level; resource block RB level; SL PRS resource level; SL PRS resource set level.

[0298] In some embodiments, the information for indicating SL PRS time domain resource allocation includes one or more of the following:

[0299] The starting time domain unit index number of the SL PRS resource; the ending time domain unit index number of the SL PRS resource; the number of continuous time domain units of the SL PRS resource.

[0300] In some embodiments, the information for indicating SL PRS frequency domain resource allocation includes one or more of the following:

[0301] The starting frequency domain unit index number of the SL PRS resource; the ending frequency domain unit index number of the SL PRS resource; the number of continuous frequency domain units of the SL PRS resource.

[0302] In some embodiments, the information indicating SL PRS RE offset allocation includes one or more of the following:

[0303] RE offset of SL PRS resources; Comb size of SL PRS resources.

[0304] In some embodiments, the third indication information indicates any of the following items through at least 2 bits:

[0305] The PSSCH associated with the first control information does not carry an SL PRS measurement report;

[0306] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the shared resource pool;

[0307] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the dedicated resource pool;

[0308] The SL PRS measurement report carried in the PSSCH associated with the first control information includes a measurement report corresponding to the SL PRS in the shared resource pool and a measurement report corresponding to the SL PRS in the dedicated resource pool.

[0309] In some embodiments, the third indication information further includes one or more of the following:

[0310] SLPP session ID; measurement report configuration information; corresponding PSSCH resource reservation information for measurement report.

[0311] In some embodiments, when the PSSCH associated with the first control information does not carry SL data, the PSSCH associated with the first control information carries a media access control layer control element MAC CE and a MAC header, and the MACCE or the MAC header contains a layer 2 source ID.

[0312] In some embodiments, the SL PRS resource pool type information configured by the first communication device includes any one of the following:

[0313] The SL PRS resource pool configured by the first communication device is a shared resource pool;

[0314] The SL PRS resource pool configured by the first communication device is a dedicated resource pool;

[0315] The SL PRS resource pool configured by the first communication device includes a shared resource pool and a dedicated resource pool.

[0316] In some embodiments, the SL PRS resource pool type information that the terminal should configure includes any of the following:

[0317] The terminal should be configured with a shared resource pool;

[0318] The terminal should be configured with a dedicated resource pool;

[0319] The terminal should be configured with a shared resource pool and a dedicated resource pool.

[0320] In some embodiments, the first control information further includes one or more of the following:

[0321] Source terminal ID; target terminal ID; resource reservation period; SL-PRS priority; broadcast type; SL-PRS request; terminal type.

[0322] In some embodiments, the dedicated resource pool is a resource pool dedicated to SL PRS transmission, and the shared resource pool is a resource pool shared by SL PRS transmission and SL data transmission.

[0323] In some embodiments, the first control information is carried by one or more of the following carriers:

[0324] First-level direct link control information SCI; second-level SCI; downlink control information DCI; radio resource control RRC signaling; SLPP signaling.

[0325] In the seventh aspect, the present application also provides a non-transitory readable storage medium, which stores a computer program, and the computer program is used to enable a processor to execute the information indication method described in the first aspect as described above, or execute the information receiving method described in the second aspect as described above.

[0326] In an eighth aspect, the present application also provides a communication device, in which a computer program is stored, and the computer program is used to enable the communication device to execute the information indication method described in the first aspect, or execute the information receiving method described in the second aspect.

[0327] In the ninth aspect, the present application also provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the information indication method described in the first aspect as described above, or execute the information receiving method described in the second aspect as described above.

[0328] In the tenth aspect, the present application also provides a chip product, in which a computer program is stored, and the computer program is used to enable the chip product to execute the information indication method described in the first aspect as described above, or execute the information receiving method described in the second aspect as described above.

[0329] The information indication method, information receiving method, device and storage medium provided in the present application, the first communication device can send first control information to the terminal, and the first control information includes at least one of the first indication information, the second indication information, the third indication information, the fourth indication information and the fifth indication information, so that after the terminal receives the first control information, it can determine SL-PRS transmission related information, SL-PRS measurement report related information, SL-PRS resource pool related information, etc. according to the first control information and the indication information carried therein, thereby effectively improving the SL-PRS reception success rate and improving the direct link positioning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0330] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technical descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0331] Figure 1 A schematic diagram of positioning using SL-PRS provided for related technologies;

[0332] Figure 2 A flowchart of an information indication method provided in an embodiment of the present application;

[0333] Figure 3 A schematic diagram of direct link resources provided in an embodiment of the present application;

[0334] Figure 4 A schematic diagram of second indication information provided in an embodiment of the present application;

[0335] Figure 5 A schematic diagram of SL PRS measurement report transmission provided in an embodiment of the present application;

[0336] Figure 6 A schematic diagram of PSSCH transmission provided in an embodiment of the present application;

[0337] Figure 7 A schematic diagram of sending the first control information provided in an embodiment of the present application;

[0338] Figure 8 A flowchart of an information receiving method provided in an embodiment of the present application;

[0339] Fig. 9 A schematic diagram of the structure of a first communication device provided in an embodiment of the present application;

[0340] Fig.10 A schematic diagram of the structure of a terminal provided in an embodiment of the present application;

[0341] Fig.11 A schematic diagram of the structure of an information indication device provided in an embodiment of the present application;

[0342] Fig.12 A schematic diagram of the structure of an information receiving device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0343] 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.

[0344] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0345] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more.

[0346] 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.

[0347] Figure 1 A schematic diagram of positioning using SL-PRS provided for related technologies, such as Figure 1 As shown, terminal 1 uses time-frequency resources to send SL-PRS to terminal 2, terminal 3 and terminal 4 respectively. After receiving SL-PRS, terminal 2, terminal 3 and terminal 4 send the measurement results to terminal 1 to assist terminal 1 in completing positioning solution.

[0348] When the terminal completes SL positioning according to SL-PRS, it needs to determine whether the current direct link transmission contains SLPRS, and also needs to determine SL PRS resource-related information and SL PRS measurement report information. In addition, the resource pool type information configured by the terminal is also helpful for completing SL positioning. However, there is currently no relevant technical solution for how to send indication information to the terminal so that the terminal can obtain this information.

[0349] Figure 2 A flow chart of an information indication method provided in an embodiment of the present application, which method can be applied to a first communication device, such as Figure 2 As shown, the method comprises the following steps:

[0350] Step 200: Send first control information to the terminal, where the first control information includes one or more of the following indication information:

[0351] first indication information, where the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission;

[0352] second indication information, where the second indication information is used to indicate the SL PRS resource information carried in the first control information;

[0353] third indication information, where the third indication information is used to indicate SL PRS measurement report information carried in a physical direct link shared channel PSSCH associated with the first control information;

[0354] Fourth indication information, where the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data;

[0355] The fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device and / or the SL PRS resource pool type information that the terminal should configure.

[0356] Specifically, the first communication device may be a network device (eg, a base station) or a terminal.

[0357] The first control information may be any control information, and this application does not impose any limitation on this.

[0358] In some embodiments, the first control information may be carried by one or more of the following carriers: first-level sidelink control information (Sidelink Control Information, SCI), such as SCI format 1A or 1B; second-level SCI, such as SCI format 2C or 2D; downlink control information (Downlink Control Information, DCI); radio resource control (Radio Resource Control, RRC) signaling, such as Uu RRC signaling or PC5 RRC signaling; sidelink positioning protocol (Sidelink Positioning Protocol, SLPP) signaling.

[0359] The first communication device can send first control information to the terminal, and the first control information includes at least one of first indication information, second indication information, third indication information, fourth indication information and fifth indication information, so that after the terminal receives the first control information, it can determine SL-PRS transmission related information, SL-PRS measurement report related information, SL-PRS resource pool related information, etc. according to the first control information and the indication information carried therein, thereby effectively improving the SL-PRS reception success rate and improving the direct link positioning accuracy.

[0360] In some embodiments, the first indication information indicates any of the following via at least one bit:

[0361] The through link transmission associated with the first control information does not include SL PRS transmission;

[0362] The direct link transmission associated with the first control information includes SL PRS transmission.

[0363] Specifically, the first indication information may be used to indicate whether the direct link transmission associated with the first control information includes SL PRS transmission. There may be multiple indication methods.

[0364] In some embodiments, resource pools may not be distinguished during indication to reduce signaling overhead, and at least one bit may be used in the first indication information to indicate whether the direct link transmission associated with the first control information includes SL PRS transmission or does not include SL PRS transmission.

[0365] For example, one bit may be used. The bit is set to 0 to indicate that the direct link transmission associated with the first control information does not include SL PRS transmission. The bit is set to 1 to indicate that the direct link transmission associated with the first control information includes SL PRS transmission.

[0366] For example, multiple bits may be used, where all the bits are 0 to indicate that the direct link transmission associated with the first control information does not include SL PRS transmission, and all the bits are 1 to indicate that the direct link transmission associated with the first control information includes SLPRS transmission.

[0367] In some embodiments, the first indication information indicates any of the following via at least 2 bits:

[0368] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool;

[0369] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool, but does not include SL PRS transmission in a shared resource pool;

[0370] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool, but includes SL PRS transmission in a shared resource pool;

[0371] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool.

[0372] Specifically, SL-PRS may be transmitted in a dedicated resource pool or in a shared resource pool. Dedicated resource pools and shared resource pools are two types of resource pools that can be used for SL-PRS transmission. In the present application, a dedicated resource pool is a resource pool dedicated to SLPRS transmission, and a shared resource pool is a resource pool shared by SL PRS transmission and SL data transmission. In a dedicated resource pool, only SL-PRS and its associated physical sidelink control channel (PSCCH) can be transmitted. In a shared resource pool, SL-PRS can be transmitted, as well as SL data that is not related to positioning, such as a physical sidelink shared channel (PSSCH) or a physical sidelink feedback channel (PSFCH).

[0373] In some embodiments, dedicated resource pools and shared resource pools can be distinguished during indication to indicate more detailed information, and at least 2 bits can be used in the first indication information to indicate whether the direct link transmission associated with the first control information includes SL PRS transmission or does not include SL PRS transmission, and to indicate whether SLPRS transmission is included in the dedicated resource pool and the shared resource pool.

[0374] For example, 2 bits may be used, and the 2 bits are set to 00 to indicate that the direct link transmission associated with the first control information does not include SL PRS transmission in the dedicated resource pool and SL PRS transmission in the shared resource pool; the 2 bits are set to 01 to indicate that the direct link transmission associated with the first control information includes SL PRS transmission in the dedicated resource pool but does not include SL PRS transmission in the shared resource pool; the 2 bits are set to 10 to indicate that the direct link transmission associated with the first control information does not include SL PRS transmission in the dedicated resource pool but includes SL PRS transmission in the shared resource pool; the 2 bits are set to 11 to indicate that the direct link transmission associated with the first control information includes SL PRS transmission in the dedicated resource pool and SLPRS transmission in the shared resource pool.

[0375] For example, multiple bits may be used, wherein at least one bit indicates whether the direct link transmission associated with the first control information includes SL PRS transmission or does not include SL PRS transmission, and at least one bit indicates the resource pool type corresponding to the SL PRS transmission.

[0376] In some embodiments, the second indication information is used to indicate any of the following:

[0377] The SL PRS resource information carried in the first control information is a SL PRS resource identifier ID;

[0378] The SL PRS resource information carried in the first control information is SL PRS time-frequency resource information.

[0379] Specifically, the second indication information may be used to indicate the SL PRS resource information carried in the first control information.

[0380] In some embodiments, the second indication information may indicate that the SL PRS resource information carried in the first control information is a SL PRS resource identifier (ID), and the first control information carries the SL PRS resource ID, which can reduce signaling overhead. In some embodiments, each SL PRS resource ID can uniquely determine the resource occupancy of a SL PRS resource in a time slot, so that the terminal can determine the SL PRS resource based on the SL PRS resource ID.

[0381] In some embodiments, the second indication information may indicate that the SL PRS resource information carried in the first control information is SL PRS time-frequency resource information. The first control information carries SL PRS time-frequency resource information, which can provide the terminal with more detailed SL PRS resource information, which is conducive to improving the SL PRS reception success rate.

[0382] In some embodiments, the SL PRS time-frequency resource information includes one or more of the following:

[0383] (1) Information used to indicate the granularity of SL PRS resource allocation.

[0384] In some embodiments, the granularity of SL PRS resource allocation includes one or more of the following: sub-channel level; resource block (RB) level; SL PRS resource level; SL PRS resource set level.

[0385] (2) Information used to indicate SL PRS time domain resource allocation.

[0386] In some embodiments, the information used to indicate the SL PRS time domain resource allocation includes one or more of the following: the starting time domain unit index number of the SLPRS resource; the ending time domain unit index number of the SL PRS resource; and the number of continuous time domain units of the SL PRS resource.

[0387] Among them, the time domain unit may include units divided in the time domain such as subframes, time slots, symbols, etc., and is not specifically limited.

[0388] (3) Information used to indicate SL PRS frequency domain resource allocation.

[0389] In some embodiments, the information used to indicate the SL PRS frequency domain resource allocation includes one or more of the following: the starting frequency domain unit index number of the SLPRS resource; the ending frequency domain unit index number of the SL PRS resource; and the number of continuous frequency domain units of the SL PRS resource.

[0390] The frequency domain unit may include units divided in the frequency domain such as subchannels, RBs, and subcarriers, which are not specifically limited.

[0391] (4) Information used to indicate SL PRS resource element (RE) offset allocation.

[0392] In some embodiments, the information indicating the allocation of SL PRS RE offset includes one or more of the following: RE offset of SL PRS resources; Comb size of SL PRS resources.

[0393] In some embodiments, the third indication information indicates any of the following items through at least 2 bits:

[0394] The PSSCH associated with the first control information does not carry an SL PRS measurement report;

[0395] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the shared resource pool;

[0396] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the dedicated resource pool;

[0397] The SL PRS measurement report carried in the PSSCH associated with the first control information includes a measurement report corresponding to the SL PRS in the shared resource pool and a measurement report corresponding to the SL PRS in the dedicated resource pool.

[0398] Specifically, since the SL PRS dedicated resource pool can be used to transmit SL PRS but cannot transmit PSSCH, the measurement report corresponding to the SL PRS in the dedicated resource pool can only be transmitted in the PSSCH in the shared resource pool, and the third indication information can be used to indicate the SL PRS measurement report information carried in the PSSCH associated with the first control information, for example, whether the PSSCH associated with the first control information carries the SL PRS measurement report, and whether the carried SL PRS measurement report corresponds to the SL PRS measurement report of the dedicated resource pool or the SL PRS measurement report of the shared resource pool, etc.

[0399] For example, two bits can be used, and the two bits are set to 00 to indicate that the PSSCH associated with the first control information does not carry a SL PRS measurement report; the two bits are set to 01 to indicate that the SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the shared resource pool; the two bits are set to 10 to indicate that the SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the dedicated resource pool; the two bits are set to 11 to indicate that the SL PRS measurement report carried in the PSSCH associated with the first control information includes a measurement report corresponding to the SLPRS in the shared resource pool and a measurement report corresponding to the SL PRS in the dedicated resource pool.

[0400] For example, multiple bits may be used, wherein at least one bit indicates whether the PSSCH associated with the first control information carries the SL PRS measurement report or does not carry the SL PRS measurement report, and at least one bit indicates the resource pool type corresponding to the SL PRS measurement report.

[0401] In some embodiments, the third indication information may also include one or more of the following:

[0402] (1) SLPP session ID: This ID is associated with the SL PRS and the measurement report corresponding to the SL PRS.

[0403] (2) Measurement report configuration information: This information indicates the configuration of the measurement report, including information such as the period.

[0404] (3) Corresponding PSSCH resource reservation information for measurement reporting, i.e., the time-frequency resource information of the corresponding PSSCH.

[0405] In some embodiments, when the PSSCH associated with the first control information does not carry SL data, the PSSCH associated with the first control information carries a media access control layer control element MAC CE and a MAC header, and the MACCE or the MAC header contains a layer 2 source ID.

[0406] Specifically, the fourth indication information can be used to indicate whether the PSSCH associated with the first control information carries SL data, so that the terminal can determine the priority of SL PRS processing according to the fourth indication information. For example, if the PSSCH carries SL data, the terminal can give priority to receiving and processing the PSSCH, because in most cases the priority of SL data in the PSSCH is higher than SL positioning; and if the PSSCH does not carry SL data, but only carries some MAC CE and MAC headers, the terminal can give priority to processing the SL PRS, because in the absence of SL data, the priority of SL positioning is higher.

[0407] When the PSSCH associated with the first control information does not carry SL data, the PSSCH associated with the first control information may carry a media access control layer control element (MAC CE) and a MAC header. The MAC CE or the MAC header includes a layer 2 source ID. The layer 2 source ID may be, for example, a layer 2 source ID related to SL PRS, terminal, service, etc., and is not specifically limited in this application.

[0408] In some embodiments, the SL PRS resource pool type information configured by the first communication device includes any one of the following:

[0409] The SL PRS resource pool configured by the first communication device is a shared resource pool;

[0410] The SL PRS resource pool configured by the first communication device is a dedicated resource pool;

[0411] The SL PRS resource pool configured by the first communication device includes a shared resource pool and a dedicated resource pool.

[0412] Specifically, the fifth indication information may be used to indicate the resource pool type information configured by the first communication device or to indicate the resource pool type that the terminal should configure.

[0413] For example, the fifth indication information may indicate that the SL PRS resource pool configured by the first communication device is a shared resource pool; or, the fifth indication information may indicate that the SL PRS resource pool configured by the first communication device is a dedicated resource pool; or, the fifth indication information may indicate that the SL PRS resource pool configured by the first communication device includes a shared resource pool and a dedicated resource pool. Thus, the terminal can determine the type of resource pool configured in the first communication device according to the fifth indication information, which helps the terminal to better receive the SL PRS.

[0414] In some embodiments, the SL PRS resource pool type information that the terminal should configure includes any of the following:

[0415] The terminal should be configured with a shared resource pool;

[0416] The terminal should be configured with a dedicated resource pool;

[0417] The terminal should be configured with a shared resource pool and a dedicated resource pool.

[0418] Specifically, the SL PRS resource pool type information that the terminal should configure refers to the resource pool configuration scheme of the terminal recommended by the first communication device, thereby helping the terminal to better send the SL PRS.

[0419] For example, the fifth indication information may indicate that the terminal should configure a shared resource pool, that is, recommend that the terminal configure a shared resource pool; or, the fifth indication information may indicate that the terminal should configure a dedicated resource pool, that is, recommend that the terminal configure a dedicated resource pool; or, the fifth indication information may indicate that the terminal should configure a shared resource pool and a dedicated resource pool, that is, recommend that the terminal configure both a shared resource pool and a dedicated resource pool. This helps the terminal to better send the SL PRS.

[0420] In some embodiments, the first control information may also include one or more of the following: source terminal ID; target terminal ID; resource reservation period; SL-PRS priority; broadcast type; SL-PRS request; terminal type. The content of each information corresponds to the function of the first control information, and this application does not specifically limit it.

[0421] The following describes the methods provided in the above embodiments of the present application by using examples of specific application scenarios.

[0422] Example 1: An example related to the first indication information, taking terminal A sending the first control information to terminal B as an example.

[0423] Terminal A sends first control information to terminal B, the first control information including first indication information. The first indication information indicates whether the direct link transmission associated with the first control information includes SL PRS. Terminal B receives SL PRS sent by terminal A according to the first control information.

[0424] As described above, the first indication information indicates whether the direct link transmission associated with the first control information includes SL PRS transmission. This indication includes the following two indication schemes:

[0425] Indication scheme 1: at least one bit is used in the first indication information to indicate whether the direct link transmission associated with the first control information includes SL PRS transmission (this indication scheme does not distinguish between a dedicated resource pool and a shared resource pool).

[0426] Option 1: indicating that the through link transmission associated with the first control information does not include SL PRS transmission;

[0427] Option 2: Indicates that the direct link transmission associated with the first control information includes SL PRS transmission.

[0428] Among them, option 1 and option 2 in indication scheme 1 refer to two different bit values ​​represented by at least one bit, for example: assuming that one bit is used to indicate whether the direct link transmission associated with the first control information includes SLPRS transmission, option 1 can be the value of the one bit is 0, option 2 can be the value of the one bit is 1, and the value can also be 1 bit with a value of 1 to represent option 1, and 1 bit with a value of 0 to represent option 2. This is for exemplary purposes, and other values ​​and corresponding methods known to those skilled in the art can be applied here; and for the bit value examples mentioned in this article, the specific value is 0 or 1, and the corresponding relationship between the value and the meaning represented by the value can be interchanged, such as in the example where bit 0 represents meaning A and bit 1 represents B, they are all replaced with bit 0 representing meaning B and bit 1 representing A; for other numbers of bits, such as 2 bits, 3 bits or even more bits, it should also be understood in this way.

[0429] Indication scheme 2: At least 2 bits are used in the first indication information to indicate whether the direct link transmission associated with the first control information includes SL PRS transmission (this indication scheme distinguishes between a dedicated resource pool and a shared resource pool). Option 1: Indicates that the direct link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool and a shared resource pool;

[0430] Option 2: indicates that the through link transmission associated with the first control information includes SLPRS transmission in the dedicated resource pool, but does not include SL PRS transmission in the shared resource pool;

[0431] Option 3: indicates that the through link transmission associated with the first control information does not include SLPRS transmission in the dedicated resource pool, but includes SL PRS transmission in the shared resource pool;

[0432] Option 4: indicates that the through link transmission associated with the first control information includes SL PRS transmission in the dedicated resource pool and the shared resource pool.

[0433] Among them, option 1, option 2, option 3 and option 4 in indication scheme 2 respectively refer to 4 different bit values ​​represented by at least 2 bits. For example, assuming that 2 bits are used to indicate whether SL PRS transmission is included in the direct link transmission associated with the first control information, option 1 can be the value of the 2 bits as 00, option 2 can be the value of the 2 bits as 01, option 3 can be the value of the 2 bits as 10, and option 4 can be the value of the 2 bits as 11.

[0434] Figure 3 A schematic diagram of direct link resources provided in an embodiment of the present application, such as Figure 3 As shown in the figure, each long square represents a time slot, and there are 20 time slots in total as shown in the fourth row of "all available time slots for direct link" in the figure. The time slots represented by the long squares filled with horizontal lines in the figure represent the time slot set used for S-SSB transmission (i.e., the direct link synchronization time slot set {3,7,11,15,19}, the time slots shown in the first row of the figure). These time slots can only be used to transmit S-SSB and cannot be used to transmit other signals or channels. The time slots represented by the long squares filled with vertical lines in the figure represent the time slot set of the dedicated resource pool for direct link positioning (i.e., the time slot set of the dedicated resource pool for direct link positioning {1,5,9,13,17}, the time slots shown in the second row of the figure can only be used to transmit SL-PRS). The time slots represented by the long squares filled with diagonal lines in the figure are the time slot sets of the direct link shared resource pool (i.e., the time slots of the direct link resource pool {0, 2, 4, 6, 8, 10, 12, 14, 16, 18}, the time slots shown in the third row of the figure). These time slots can be used for direct link data communication (transmission of PSSCH) and direct link positioning (transmission of SL-PRS). Since the dedicated resource pool for the direct link can only be used to transmit SL-PRS and cannot transmit other direct link communication channels or signals, transmitting SL-PRS in the dedicated resource pool can avoid collision between SL-PRS and direct link communication channels or signals such as PSCCH / PSSCH / PSFCH / SLCSI-RS. However, in the dedicated resource pool, collision between two SL-PRS may occur, that is, both parties transmit at the same time in the same time slot. In the shared resource pool, a collision may occur between the SL-PRS and a direct link communication channel or signal such as PSCCH / PSSCH / PSFCH / SL CSI-RS, or between two SL-PRSs.

[0435] For indication scheme 1, if 1 bit indicates option 2, it means that the direct link transmission associated with the first control information includes SL PRS transmission, and the SL PRS transmission may be in the SL PRS dedicated resource pool or in the SLPRS shared resource pool.

[0436] For indication scheme 2, if 2 bits indicate option 3, it means that the direct link transmission associated with the first control information includes SL PRS transmission, and the SL PRS transmission occurs in the SL PRS shared resource pool rather than the SL PRS dedicated resource pool.

[0437] By adopting the indication method of Example 1, the terminal can determine whether the direct link transmission associated with the first control information includes SL PRS according to the first indication information, and if included, the resource pool type information used for the SL-PRS transmission, so that the terminal can complete the reception and decoding of SL-PRS according to the first indication information, and complete the direct link positioning based on SL-PRS.

[0438] Example 2: An example related to the second indication information, taking terminal A sending first control information to terminal B as an example.

[0439] Terminal A sends first control information to terminal B, and the first control information includes second indication information. The second indication information indicates SL PRS resource information carried by the first control information. Terminal B receives the SL PRS sent by terminal A according to the first control information.

[0440] The specific second instruction information is as follows:

[0441] The second indication information indicates the SL PRS resource information carried by the first control information. The second indication information may indicate whether the first control information carries the SL PRS resource ID information or the SL PRS time-frequency resource information.

[0442] The SL PRS resource ID can uniquely determine the resource occupancy of a SL PRS resource in a time slot.

[0443] The time-frequency resource information of SL PRS may contain information used to indicate the granularity of SL PRS resource allocation, including at least one of the following granularities: subchannel level; RB level; SL PRS resource level; SL PRS resource set level.

[0444] The time-frequency resource information of SL PRS may contain information used to indicate the time domain resource allocation of SL PRS, including at least one of the following information: the starting symbol index number of SL PRS resources, the ending symbol index number of SL PRS resources, and the number of continuous symbols of SLPRS resources.

[0445] The time-frequency resource information of SL PRS may contain information used to indicate the frequency domain resource allocation of SL PRS, including at least one of the following information: the starting RB index number of SL PRS resource, the ending RB index number of SL PRS resource, and the number of continuous RBs of SL PRS resource.

[0446] The time-frequency resource information of the SL PRS may contain information for indicating the allocation of SL PRS RE offset, including at least one of the following information: RE offset of SL PRS resources, Comb size of SL PRS resources.

[0447] Figure 4 A schematic diagram of the second indication information provided in the embodiment of the present application, such as Figure 4 As shown in (a), if the second indication information indicates that the first control information carries SL PRS resource ID information, then since the SL PRS resource ID corresponds to the time-frequency resource configuration information of the SLPRS one-to-one, the SL PRS resource ID uniquely determines the resource occupancy of a SL PRS resource in a time slot. Therefore, through the mapping relationship between the pre-configured SL PRS resource ID and the time-frequency resource configuration information of the SL PRS, terminal B can obtain the time-frequency resource configuration information of the SL PRS through the SL PRS resource ID information in the second indication information.

[0448] like Figure 4 As shown in (b) in FIG. 1 , if the second indication information indicates that the first control information carries SL PRS resource configuration information, the time-frequency resource information of the SL PRS contains information used to indicate the granularity of SL PRS resource allocation. The granularity shown in the figure is the sub-channel level. As shown in the figure, the resources of the first SL-PRS can be divided into three resources at the sub-channel granularity (resources corresponding to sub-channel #1, resources corresponding to sub-channel #2, and resources corresponding to sub-channel #3). Figure 4 (a) and (b) in FIG. 1 show the division of the resources of the first SL-PRS at the subchannel granularity. The difference is that Figure 4 (a) indicates the SL PRS resource ID, but does not indicate the granularity of SL PRS resource allocation. Figure 4 (b) in FIG. 1 indicates the granularity of SL PRS resource allocation.

[0449] When the second indication information indicates the time-frequency resource information of the SL PRS, the specific time-frequency resource configuration information of the SL PRS may also be carried in the first control information, taking the information of time domain resource allocation as an example:

[0450] The index number of the starting OFDM symbol occupied by the SL-PRS is #5, the index number of the ending OFDM symbol is #8, and the number of OFDM symbols is 4. This OFDM symbol index number refers to the OFDM index number within the time slot.

[0451] The time domain information may also be the OFDM symbol index number in the subframe. Since a subframe may contain 1 time slot (SCS=15KHz), 2 time slots (SCS=30KHz), 4 time slots (SCS=60KHz), 8 time slots (SCS=120KHz), etc., if the time domain information is the OFDM symbol index number in the subframe, it is necessary to add the time slot index number before the OFDM symbol index number in the time slot. Assuming that the current time slot of the SL-PRS is #3, then the index number of the starting OFDM symbol occupied by the first SL-PRS is: symbol #5 in time slot #3, and the index number of the ending OFDM symbol is symbol #8 in time slot #3.

[0452] The time domain information may also be the OFDM symbol index number in the wireless frame. Since a wireless frame contains 10 subframes, and a subframe may contain 1 time slot (SCS=15KHz), 2 time slots (SCS=30KHz), 4 time slots (SCS=60KHz), 8 time slots (SCS=120KHz), etc., if the time domain information is the OFDM symbol index number in the wireless frame, it is necessary to add the subframe index number before the OFDM symbol index number in the subframe. Assuming that the subframe where the SL-PRS is currently located is #6 and the time slot where it is located is #3, then the index number of the starting OFDM symbol occupied by the first SL-PRS is: {subframe #6, time slot #3, symbol #5}, and the index number of the ending OFDM symbol is {subframe #6, time slot #3, symbol #8}.

[0453] In addition, it may also include information on SL PRS frequency domain resource allocation, information on SL PRS RE offset allocation, etc.

[0454] By adopting the indication method of Example 2, the terminal can determine whether the first control information carries the SL PRS resource ID information or the time-frequency resource information of the SL PRS based on the second indication information, so that the terminal can complete the reception and decoding of the SL-PRS and complete the direct link positioning based on the SL-PRS.

[0455] Example 3: An example related to the third indication information, taking terminal A sending first control information to terminal B as an example.

[0456] Terminal A sends first control information to terminal B, and the first control information includes third indication information. The third indication information indicates the SL PRS measurement report information carried in the PSSCH associated with the first control information. Terminal B receives the SL PRS measurement report sent by terminal A according to the first control information.

[0457] The specific third instruction information is as follows:

[0458] The third indication information indicates the SL PRS measurement report information carried in the PSSCH associated with the first control information. The third indication information may indicate whether the SL PRS measurement report carried by the PSSCH corresponds to a measurement report of the SL PRS in the shared resource pool or a measurement report of the SL PRS in the dedicated resource pool.

[0459] Indication scheme 3: at least 2 bits are used in the third indication information to indicate the SL PRS measurement report information carried in the PSSCH associated with the first control information (this indication scheme distinguishes between a dedicated resource pool and a shared resource pool).

[0460] Option 1: Indicates that the PSSCH associated with the first control information does not carry the SL PRS measurement report;

[0461] Option 2: Indicates that the SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the shared resource pool;

[0462] Option 3: Indicates that the SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the dedicated resource pool;

[0463] Option 4: indicates that the PSSCH associated with the first control information carries a measurement report corresponding to the SL PRS in the shared resource pool and also carries a measurement report corresponding to the SL PRS in the dedicated resource pool.

[0464] Among them, option 1, option 2, option 3 and option 4 in the indication scheme 3 respectively refer to 4 different bit values ​​represented by at least 2 bits. For example: assuming that 2 bits are used to indicate the SL PRS measurement report information carried in the PSSCH associated with the first control information, option 1 can be the value of the 2 bits as 00, option 2 can be the value of the 2 bits as 01, option 3 can be the value of the 2 bits as 10, and option 4 can be the value of the 2 bits as 11.

[0465] The third indication information may also carry the SLPP session ID, measurement report configuration information, and corresponding PSSCH resource reservation information for measurement reporting.

[0466] Figure 5 A schematic diagram of SL PRS measurement report transmission provided in an embodiment of the present application, Figure 5 The time slots represented by the long bars have the same meaning as Figure 3 The same, no further description is given here, such as Figure 5 As shown, the SL PRS dedicated resource pool transmits the SL PRS but cannot transmit the PSSCH. Therefore, the measurement report corresponding to the SL PRS in the dedicated resource pool can only be transmitted in the PSSCH in the shared resource pool (as shown in the figure, the long square marked with PSSCH). Assuming that the third indication information uses 2 bits to indicate the SL PRS measurement report information carried in the PSSCH, the dedicated and shared resource pools can be distinguished. Assuming that these 2 bits indicate option 3, that is, indicating that the SL PRS measurement report carried by the PSSCH is the measurement report corresponding to the SL PRS in the dedicated resource pool, then the PSSCH sent in the shared resource pool actually carries the measurement report of the SL PRS in the dedicated resource pool.

[0467] In addition, the third indication information may also carry the following information so that terminal B can accurately receive the measurement report information:

[0468] SLPP session ID: This ID is associated with the SL PRS and the measurement report corresponding to the SL PRS;

[0469] Measurement report configuration information: indicates the configuration of the measurement report, including information such as period;

[0470] Corresponding PSSCH resource reservation information for measurement reporting: that is, the time-frequency resource information of PSSCH.

[0471] Using the indication method of Example 3, the terminal can determine the SLPRS measurement report information carried in the PSSCH according to the third indication information, so that the terminal can complete the reception of the SL-PRS measurement report according to the third indication information, and complete the direct link positioning based on the SL-PRS measurement report information.

[0472] Example 4: An example related to the fourth indication information, taking terminal A sending first control information to terminal B as an example.

[0473] Terminal A sends first control information to terminal B, and the first control information contains fourth indication information. The fourth indication information indicates whether the PSSCH associated with the first control information carries SL data. Terminal B receives the PSSCH sent by terminal A according to the first control information.

[0474] The specific fourth instruction information is as follows:

[0475] The fourth indication information indicates whether the PSSCH associated with the first control information carries SL data.

[0476] When no SL data is carried in the PSSCH, the PSSCH carries the MAC CE and MAC header, which includes the layer 2 source ID.

[0477] Figure 6 A schematic diagram of PSSCH transmission provided in an embodiment of the present application is shown in FIG. Figure 6 As shown in (a), a time slot contains 14 OFDM symbols, of which PSCCH occupies 4 symbols, PSSCH occupies 4 symbols, and SL PRS occupies 4 symbols. According to the fourth indication information, PSSCH carries SL data at this time. Figure 6 As shown in (b), according to the information of the fourth indication information, the PSSCH does not carry SL data at this time, so the PSSCH only occupies 2 symbols. Although the PSSCH does not carry SL data, it still carries the MAC CE and MAC header, which contain the layer 2 source ID information.

[0478] If PSSCH carries SL data, terminal B will give priority to receiving and processing PSSCH, because in most cases the priority of SL data in PSSCH is higher than SL positioning. If PSSCH does not carry SL data, but only carries some MAC CE and MAC header, terminal B will give priority to processing SL PRS, because in the absence of SL data, SL positioning has a higher priority.

[0479] Using the indication method of Example 4, the terminal determines whether the PSSCH associated with the first control information carries SL data based on the fourth indication information, so that the terminal can complete the reception of PSSCH and SL PRS based on the fourth indication information, and complete the direct link positioning based on SL-PRS.

[0480] Example 5: An example related to the fifth indication information, taking terminal A sending first control information to terminal B as an example.

[0481] Terminal A sends first control information to terminal B, and the first control information includes fifth indication information. The fifth indication information indicates the resource pool type information configured by terminal A and / or indicates the resource pool type information that terminal B should configure. Terminal B receives or sends SL PRS and / or PSSCH according to the first control information.

[0482] The specific fifth indication information is as follows (1) and / or (2):

[0483] (1) The resource pool type information configured by terminal A includes: information that terminal A is configured with an SL PRS dedicated resource pool and / or an SLPRS shared resource pool.

[0484] Option 1: indicates that terminal A is configured with an SL PRS shared resource pool;

[0485] Option 2: indicates that terminal A is configured with a dedicated SL PRS resource pool;

[0486] Option 3: indicates that terminal A is configured with an SL PRS shared resource pool and an SL PRS dedicated resource pool.

[0487] Among them, option 1, option 2 and option 3 respectively refer to three different options that the fifth indication information can indicate for the resource pool type information configured for terminal A.

[0488] In some implementations, at least 2 bits may be used to indicate the resource pool type information configured for terminal A, and option 1, option 2, and option 3 respectively refer to 3 different bit values ​​represented by at least 2 bits. For example, assuming that 2 bits are used to indicate the resource pool type information configured for terminal A, option 1 may be the value of the 2 bits being 01, option 2 may be the value of the 2 bits being 10, and option 3 may be the value of the 2 bits being 11.

[0489] (2) The resource pool type information that terminal B should configure includes: information that terminal B should configure an SL PRS dedicated resource pool and / or an SL PRS shared resource pool.

[0490] Option 1: indicates that terminal B should configure the SL PRS shared resource pool;

[0491] Option 2: indicates that terminal B should configure a dedicated SL PRS resource pool;

[0492] Option 3: Indicates that terminal B should configure an SL PRS shared resource pool and an SL PRS dedicated resource pool.

[0493] Among them, option 1, option 2 and option 3 respectively refer to three different options that the fifth indication information can indicate for the resource pool type information that terminal B should configure.

[0494] In some implementations, at least 2 bits may be used to indicate the resource pool type information that terminal B should configure, and option 1, option 2, and option 3 respectively refer to 3 different bit values ​​represented by at least 2 bits. For example, assuming that 2 bits are used to indicate the resource pool type information that terminal B should configure, option 1 may be the value of the 2 bits being 01, option 2 may be the value of the 2 bits being 10, and option 3 may be the value of the 2 bits being 11.

[0495] For terminal B, the SL PRS resource pool type information configured by terminal A can be obtained through the fifth indication information, which helps to better receive SL PRS. Alternatively, for terminal B, the SL PRS resource pool type information that terminal B should configure can be obtained through the fifth indication information, which is the resource pool configuration scheme of terminal B recommended by terminal A, which helps to better send SL PRS.

[0496] Using the indication method of Example 5, terminal B can determine the SLPRS resource pool type information configured by terminal A based on the fifth indication information, thereby facilitating better reception of the SL PRS, or terminal B can determine the SL PRS resource pool type information that terminal B should configure based on the fifth indication information, thereby facilitating better sending of the SL PRS and completing the direct link positioning based on the SL-PRS.

[0497] Example 6: An example related to the carrier of the first control information, taking terminal A sending the first control information to terminal B as an example.

[0498] Terminal A sends first control information to terminal B, the first control information including at least one of first indication information, second indication information, third indication information, fourth indication information and fifth indication information. Terminal B receives or sends SL PRS and / or PSSCH according to the first control information.

[0499] The specific carrier information of the first control information may include the following situations:

[0500] The first control information is carried by the first level SCI, such as SCI format 1A or 1B;

[0501] The first control information is carried by the second-level SCI, such as SCI format 2C or 2D;

[0502] The first control information is carried by RRC signaling, such as Uu RRC or PC5 RRC signaling;

[0503] The first control information is carried by SLPP signaling;

[0504] The first control information is carried by a mixed combination of the above multiple carriers, such as the first indication information is indicated by the first-level SCI, the second indication information is indicated by the PC5 RRC signaling, and the third indication information is carried by the SLPP signaling.

[0505] Figure 7 A schematic diagram of sending the first control information provided in an embodiment of the present application is shown in FIG. Figure 7As shown, terminal A sends the first control information to terminal B. If SCI is used for carrying, since SCI is directly carried through the physical layer channel, the latency is low, but the physical layer signaling overhead is high. If RRC or SLPP high-level signaling is used for carrying, the physical layer signaling will not be occupied, but the latency is high. The first control information can also be carried by a mixture of the above multiple carriers, such as the first indication information is indicated by the first-level SCI, the second indication information is indicated by the PC5 RRC signaling, and the third indication information is carried by the SLPP signaling, so that a balance can be achieved between the physical layer signaling overhead and the latency.

[0506] By adopting the first control information carrying method of Example 6, the terminal can select a suitable first control information carrying method based on a comprehensive consideration of the physical layer signaling overhead and delay, so that the terminal can send or receive SL PRS and complete direct link positioning according to the first control information, while meeting the physical layer signaling overhead and delay requirements.

[0507] Figure 8 The flowchart of the information receiving method provided in the embodiment of the present application is as follows. The method can be applied to a terminal, such as Figure 8 As shown, the method comprises the following steps:

[0508] Step 800: Receive first control information sent by a first communication device, where the first control information includes one or more of the following indication information:

[0509] first indication information, where the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission;

[0510] second indication information, where the second indication information is used to indicate the SL PRS resource information carried in the first control information;

[0511] third indication information, where the third indication information is used to indicate SL PRS measurement report information carried in a physical direct link shared channel PSSCH associated with the first control information;

[0512] Fourth indication information, where the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data;

[0513] The fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device and / or the SL PRS resource pool type information that the terminal should configure.

[0514] In some embodiments, the first indication information indicates any of the following via at least one bit:

[0515] The through link transmission associated with the first control information does not include SL PRS transmission;

[0516] The direct link transmission associated with the first control information includes SL PRS transmission.

[0517] In some embodiments, the first indication information indicates any of the following via at least 2 bits:

[0518] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool;

[0519] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool, but does not include SL PRS transmission in a shared resource pool;

[0520] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool, but includes SL PRS transmission in a shared resource pool;

[0521] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool.

[0522] In some embodiments, the second indication information is used to indicate any of the following:

[0523] The SL PRS resource information carried in the first control information is a SL PRS resource identifier ID;

[0524] The SL PRS resource information carried in the first control information is SL PRS time-frequency resource information.

[0525] In some embodiments, each of the SL PRS resource IDs is used to uniquely determine the resource occupancy of a SL PRS resource in a time slot.

[0526] In some embodiments, the SL PRS time-frequency resource information includes one or more of the following:

[0527] Information used to indicate the granularity of SL PRS resource allocation;

[0528] Information used to indicate SL PRS time domain resource allocation;

[0529] Information used to indicate SL PRS frequency domain resource allocation;

[0530] Information used to indicate SL PRS resource unit offset RE offset allocation.

[0531] In some embodiments, the granularity of the SL PRS resource allocation includes one or more of the following:

[0532] Subchannel level; resource block RB level; SL PRS resource level; SL PRS resource set level.

[0533] In some embodiments, the information for indicating SL PRS time domain resource allocation includes one or more of the following:

[0534] The starting time domain unit index number of the SL PRS resource; the ending time domain unit index number of the SL PRS resource; the number of continuous time domain units of the SL PRS resource.

[0535] In some embodiments, the information for indicating SL PRS frequency domain resource allocation includes one or more of the following:

[0536] The starting frequency domain unit index number of the SL PRS resource; the ending frequency domain unit index number of the SL PRS resource; the number of continuous frequency domain units of the SL PRS resource.

[0537] In some embodiments, the information indicating SL PRS RE offset allocation includes one or more of the following:

[0538] RE offset of SL PRS resources; Comb size of SL PRS resources.

[0539] In some embodiments, the third indication information indicates any of the following items through at least 2 bits:

[0540] The PSSCH associated with the first control information does not carry an SL PRS measurement report;

[0541] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the shared resource pool;

[0542] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the dedicated resource pool;

[0543] The SL PRS measurement report carried in the PSSCH associated with the first control information includes a measurement report corresponding to the SL PRS in the shared resource pool and a measurement report corresponding to the SL PRS in the dedicated resource pool.

[0544] In some embodiments, the third indication information further includes one or more of the following:

[0545] SLPP session ID; measurement report configuration information; corresponding PSSCH resource reservation information for measurement report.

[0546] In some embodiments, when the PSSCH associated with the first control information does not carry SL data, the PSSCH associated with the first control information carries a media access control layer control element MAC CE and a MAC header, and the MACCE or the MAC header contains a layer 2 source ID.

[0547] In some embodiments, the SL PRS resource pool type information configured by the first communication device includes any one of the following:

[0548] The SL PRS resource pool configured by the first communication device is a shared resource pool;

[0549] The SL PRS resource pool configured by the first communication device is a dedicated resource pool;

[0550] The SL PRS resource pool configured by the first communication device includes a shared resource pool and a dedicated resource pool.

[0551] In some embodiments, the SL PRS resource pool type information that the terminal should configure includes any of the following:

[0552] The terminal should be configured with a shared resource pool;

[0553] The terminal should be configured with a dedicated resource pool;

[0554] The terminal should be configured with a shared resource pool and a dedicated resource pool.

[0555] In some embodiments, the first control information further includes one or more of the following:

[0556] Source terminal ID; target terminal ID; resource reservation period; SL-PRS priority; broadcast type; SL-PRS request; terminal type.

[0557] In some embodiments, the dedicated resource pool is a resource pool dedicated to SL PRS transmission, and the shared resource pool is a resource pool shared by SL PRS transmission and SL data transmission.

[0558] In some embodiments, the first control information is carried by one or more of the following carriers:

[0559] First-level direct link control information SCI; second-level SCI; downlink control information DCI; radio resource control RRC signaling; SLPP signaling.

[0560] The methods provided in the embodiments of the present application are based on the same application concept, so the implementation of each method can refer to each other, and the repeated parts will not be repeated.

[0561] The methods and devices provided in the various embodiments of the present application are based on the same application concept. Since the methods and devices solve problems based on similar principles, the implementation of the devices and methods can refer to each other, and the repeated parts will not be repeated.

[0562] Fig. 9 A schematic diagram of the structure of a first communication device provided in an embodiment of the present application, such as Fig. 9 As shown, the first communication device includes a memory 920, a transceiver 910 and a processor 900; wherein the processor 900 and the memory 920 may also be arranged physically separately.

[0563] The memory 920 is used to store computer programs; the transceiver 910 is used to send and receive data under the control of the processor 900.

[0564] Specifically, the transceiver 910 is used to receive and send data under the control of the processor 900 .

[0565] Among them, Fig. 9 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 900 and memory represented by memory 920. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described in this application. The bus interface provides an interface. The transceiver 910 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which may include a wireless channel, a wired channel, an optical cable, and other transmission media.

[0566] The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 900 when performing operations.

[0567] The processor 900 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0568] The processor 900 calls the computer program stored in the memory 920 to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions, for example: sending first control information to the terminal, the first control information including one or more of the following indication information: first indication information, the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission; second indication information, the second indication information is used to indicate the SL PRS resource information carried in the first control information; third indication information, the third indication information is used to indicate the SL PRS measurement report information carried in the physical direct link shared channel PSSCH associated with the first control information; fourth indication information, the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data; fifth indication information, the fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device, and / or the SL PRS resource pool type information to be configured by the terminal.

[0569] In some embodiments, the first indication information indicates any of the following via at least one bit:

[0570] The through link transmission associated with the first control information does not include SL PRS transmission;

[0571] The direct link transmission associated with the first control information includes SL PRS transmission.

[0572] In some embodiments, the first indication information indicates any of the following via at least 2 bits:

[0573] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool;

[0574] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool, but does not include SL PRS transmission in a shared resource pool;

[0575] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool, but includes SL PRS transmission in a shared resource pool;

[0576] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool.

[0577] In some embodiments, the second indication information is used to indicate any of the following:

[0578] The SL PRS resource information carried in the first control information is a SL PRS resource identifier ID;

[0579] The SL PRS resource information carried in the first control information is SL PRS time-frequency resource information.

[0580] In some embodiments, each of the SL PRS resource IDs is used to uniquely determine the resource occupancy of a SL PRS resource in a time slot.

[0581] In some embodiments, the SL PRS time-frequency resource information includes one or more of the following:

[0582] Information used to indicate the granularity of SL PRS resource allocation;

[0583] Information used to indicate SL PRS time domain resource allocation;

[0584] Information used to indicate SL PRS frequency domain resource allocation;

[0585] Information used to indicate SL PRS resource unit offset RE offset allocation.

[0586] In some embodiments, the granularity of the SL PRS resource allocation includes one or more of the following:

[0587] Subchannel level; resource block RB level; SL PRS resource level; SL PRS resource set level.

[0588] In some embodiments, the information indicating the SL PRS time domain resource allocation includes one or more of the following:

[0589] The starting time domain unit index number of the SL PRS resource; the ending time domain unit index number of the SL PRS resource; the number of continuous time domain units of the SL PRS resource.

[0590] In some embodiments, the information for indicating SL PRS frequency domain resource allocation includes one or more of the following:

[0591] The starting frequency domain unit index number of the SL PRS resource; the ending frequency domain unit index number of the SL PRS resource; the number of continuous frequency domain units of the SL PRS resource.

[0592] In some embodiments, the information indicating SL PRS RE offset allocation includes one or more of the following:

[0593] RE offset of SL PRS resources; Comb size of SL PRS resources.

[0594] In some embodiments, the third indication information indicates any of the following items through at least 2 bits:

[0595] The PSSCH associated with the first control information does not carry an SL PRS measurement report;

[0596] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the shared resource pool;

[0597] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the dedicated resource pool;

[0598] The SL PRS measurement report carried in the PSSCH associated with the first control information includes a measurement report corresponding to the SL PRS in the shared resource pool and a measurement report corresponding to the SL PRS in the dedicated resource pool.

[0599] In some embodiments, the third indication information further includes one or more of the following:

[0600] SLPP session ID; measurement report configuration information; corresponding PSSCH resource reservation information for measurement report.

[0601] In some embodiments, when the PSSCH associated with the first control information does not carry SL data, the PSSCH associated with the first control information carries a media access control layer control element MAC CE and a MAC header, and the MACCE or the MAC header contains a layer 2 source ID.

[0602] In some embodiments, the SL PRS resource pool type information configured by the first communication device includes any one of the following:

[0603] The SL PRS resource pool configured by the first communication device is a shared resource pool;

[0604] The SL PRS resource pool configured by the first communication device is a dedicated resource pool;

[0605] The SL PRS resource pool configured by the first communication device includes a shared resource pool and a dedicated resource pool.

[0606] In some embodiments, the SL PRS resource pool type information that the terminal should configure includes any of the following:

[0607] The terminal should be configured with a shared resource pool;

[0608] The terminal should be configured with a dedicated resource pool;

[0609] The terminal should be configured with a shared resource pool and a dedicated resource pool.

[0610] In some embodiments, the first control information further includes one or more of the following:

[0611] Source terminal ID; target terminal ID; resource reservation period; SL-PRS priority; broadcast type; SL-PRS request; terminal type.

[0612] In some embodiments, the dedicated resource pool is a resource pool dedicated to SL PRS transmission, and the shared resource pool is a resource pool shared by SL PRS transmission and SL data transmission.

[0613] In some embodiments, the first control information is carried by one or more of the following carriers:

[0614] First-level direct link control information SCI; second-level SCI; downlink control information DCI; radio resource control RRC signaling; SLPP signaling.

[0615] Fig.10 A schematic diagram of the structure of a terminal provided in an embodiment of the present application, such as Fig.10 As shown, the terminal includes a memory 1020, a transceiver 1010 and a processor 1000; wherein the processor 1000 and the memory 1020 may also be arranged physically separately.

[0616] The memory 1020 is used to store computer programs; the transceiver 1010 is used to send and receive data under the control of the processor 1000.

[0617] Specifically, the transceiver 1010 is used to receive and send data under the control of the processor 1000 .

[0618] Among them, Fig.10 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1000 and various circuits of memory represented by memory 1020 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described in this application. The bus interface provides an interface. The transceiver 1010 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which may include a wireless channel, a wired channel, an optical cable, and other transmission media. For different user devices, the user interface 1030 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0619] The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 can store data used by the processor 1000 when performing operations.

[0620] The processor 1000 may be a CPU, an ASIC, an FPGA or a CPLD, and the processor may also adopt a multi-core architecture.

[0621] The processor 1000 calls the computer program stored in the memory 1020 to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions, for example: receiving first control information sent by a first communication device, the first control information including one or more of the following indication information: first indication information, the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission; second indication information, the second indication information is used to indicate the SL PRS resource information carried in the first control information; third indication information, the third indication information is used to indicate the SL PRS measurement report information carried in the physical direct link shared channel PSSCH associated with the first control information; fourth indication information, the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data; fifth indication information, the fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device, and / or the SL PRS resource pool type information to be configured by the terminal.

[0622] In some embodiments, the first indication information indicates any of the following via at least one bit:

[0623] The through link transmission associated with the first control information does not include SL PRS transmission;

[0624] The direct link transmission associated with the first control information includes SL PRS transmission.

[0625] In some embodiments, the first indication information indicates any of the following via at least 2 bits:

[0626] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool;

[0627] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool, but does not include SL PRS transmission in a shared resource pool;

[0628] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool, but includes SL PRS transmission in a shared resource pool;

[0629] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool.

[0630] In some embodiments, the second indication information is used to indicate any of the following:

[0631] The SL PRS resource information carried in the first control information is a SL PRS resource identifier ID;

[0632] The SL PRS resource information carried in the first control information is SL PRS time-frequency resource information.

[0633] In some embodiments, each of the SL PRS resource IDs is used to uniquely determine the resource occupancy of a SL PRS resource in a time slot.

[0634] In some embodiments, the SL PRS time-frequency resource information includes one or more of the following:

[0635] Information used to indicate the granularity of SL PRS resource allocation;

[0636] Information used to indicate SL PRS time domain resource allocation;

[0637] Information used to indicate SL PRS frequency domain resource allocation;

[0638] Information used to indicate SL PRS resource unit offset RE offset allocation.

[0639] In some embodiments, the granularity of the SL PRS resource allocation includes one or more of the following:

[0640] Subchannel level; resource block RB level; SL PRS resource level; SL PRS resource set level.

[0641] In some embodiments, the information for indicating SL PRS time domain resource allocation includes one or more of the following:

[0642] The starting time domain unit index number of the SL PRS resource; the ending time domain unit index number of the SL PRS resource; the number of continuous time domain units of the SL PRS resource.

[0643] In some embodiments, the information for indicating SL PRS frequency domain resource allocation includes one or more of the following:

[0644] The starting frequency domain unit index number of the SL PRS resource; the ending frequency domain unit index number of the SL PRS resource; the number of continuous frequency domain units of the SL PRS resource.

[0645] In some embodiments, the information indicating SL PRS RE offset allocation includes one or more of the following:

[0646] RE offset of SL PRS resources; Comb size of SL PRS resources.

[0647] In some embodiments, the third indication information indicates any of the following items through at least 2 bits:

[0648] The PSSCH associated with the first control information does not carry an SL PRS measurement report;

[0649] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the shared resource pool;

[0650] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the dedicated resource pool;

[0651] The SL PRS measurement report carried in the PSSCH associated with the first control information includes a measurement report corresponding to the SL PRS in the shared resource pool and a measurement report corresponding to the SL PRS in the dedicated resource pool.

[0652] In some embodiments, the third indication information further includes one or more of the following:

[0653] SLPP session ID; measurement report configuration information; corresponding PSSCH resource reservation information for measurement report.

[0654] In some embodiments, when the PSSCH associated with the first control information does not carry SL data, the PSSCH associated with the first control information carries a media access control layer control element MAC CE and a MAC header, and the MACCE or the MAC header contains a layer 2 source ID.

[0655] In some embodiments, the SL PRS resource pool type information configured by the first communication device includes any one of the following:

[0656] The SL PRS resource pool configured by the first communication device is a shared resource pool;

[0657] The SL PRS resource pool configured by the first communication device is a dedicated resource pool;

[0658] The SL PRS resource pool configured by the first communication device includes a shared resource pool and a dedicated resource pool.

[0659] In some embodiments, the SL PRS resource pool type information that the terminal should configure includes any of the following:

[0660] The terminal should be configured with a shared resource pool;

[0661] The terminal should be configured with a dedicated resource pool;

[0662] The terminal should be configured with a shared resource pool and a dedicated resource pool.

[0663] In some embodiments, the first control information further includes one or more of the following:

[0664] Source terminal ID; target terminal ID; resource reservation period; SL-PRS priority; broadcast type; SL-PRS request; terminal type.

[0665] In some embodiments, the dedicated resource pool is a resource pool dedicated to SL PRS transmission, and the shared resource pool is a resource pool shared by SL PRS transmission and SL data transmission.

[0666] In some embodiments, the first control information is carried by one or more of the following carriers:

[0667] First-level direct link control information SCI; second-level SCI; downlink control information DCI; radio resource control RRC signaling; SLPP signaling.

[0668] It should be noted here that the above-mentioned first communication device and terminal provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0669] Fig.11 A schematic diagram of the structure of the information indication device provided in the embodiment of the present application, such as Fig.11 As shown, the device comprises:

[0670] The sending unit 1100 is configured to send first control information to a terminal, where the first control information includes one or more of the following indication information:

[0671] first indication information, where the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission;

[0672] second indication information, where the second indication information is used to indicate the SL PRS resource information carried in the first control information;

[0673] third indication information, where the third indication information is used to indicate SL PRS measurement report information carried in a physical direct link shared channel PSSCH associated with the first control information;

[0674] Fourth indication information, where the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data;

[0675] The fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device and / or the SL PRS resource pool type information that the terminal should configure.

[0676] In some embodiments, the first indication information indicates any of the following via at least one bit:

[0677] The through link transmission associated with the first control information does not include SL PRS transmission;

[0678] The direct link transmission associated with the first control information includes SL PRS transmission.

[0679] In some embodiments, the first indication information indicates any of the following via at least 2 bits:

[0680] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool;

[0681] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool, but does not include SL PRS transmission in a shared resource pool;

[0682] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool, but includes SL PRS transmission in a shared resource pool;

[0683] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool.

[0684] In some embodiments, the second indication information is used to indicate any of the following:

[0685] The SL PRS resource information carried in the first control information is a SL PRS resource identifier ID;

[0686] The SL PRS resource information carried in the first control information is SL PRS time-frequency resource information.

[0687] In some embodiments, each of the SL PRS resource IDs is used to uniquely determine the resource occupancy of a SL PRS resource in a time slot.

[0688] In some embodiments, the SL PRS time-frequency resource information includes one or more of the following:

[0689] Information used to indicate the granularity of SL PRS resource allocation;

[0690] Information used to indicate SL PRS time domain resource allocation;

[0691] Information used to indicate SL PRS frequency domain resource allocation;

[0692] Information used to indicate SL PRS resource unit offset RE offset allocation.

[0693] In some embodiments, the granularity of the SL PRS resource allocation includes one or more of the following:

[0694] Subchannel level; resource block RB level; SL PRS resource level; SL PRS resource set level.

[0695] In some embodiments, the information for indicating SL PRS time domain resource allocation includes one or more of the following:

[0696] The starting time domain unit index number of the SL PRS resource; the ending time domain unit index number of the SL PRS resource; the number of continuous time domain units of the SL PRS resource.

[0697] In some embodiments, the information for indicating SL PRS frequency domain resource allocation includes one or more of the following:

[0698] The starting frequency domain unit index number of the SL PRS resource; the ending frequency domain unit index number of the SL PRS resource; the number of continuous frequency domain units of the SL PRS resource.

[0699] In some embodiments, the information indicating SL PRS RE offset allocation includes one or more of the following:

[0700] RE offset of SL PRS resources; Comb size of SL PRS resources.

[0701] In some embodiments, the third indication information indicates any of the following items through at least 2 bits:

[0702] The PSSCH associated with the first control information does not carry an SL PRS measurement report;

[0703] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the shared resource pool;

[0704] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the dedicated resource pool;

[0705] The SL PRS measurement report carried in the PSSCH associated with the first control information includes a measurement report corresponding to the SL PRS in the shared resource pool and a measurement report corresponding to the SL PRS in the dedicated resource pool.

[0706] In some embodiments, the third indication information further includes one or more of the following:

[0707] SLPP session ID; measurement report configuration information; corresponding PSSCH resource reservation information for measurement report.

[0708] In some embodiments, when the PSSCH associated with the first control information does not carry SL data, the PSSCH associated with the first control information carries a media access control layer control element MAC CE and a MAC header, and the MACCE or the MAC header contains a layer 2 source ID.

[0709] In some embodiments, the SL PRS resource pool type information configured by the first communication device includes any one of the following:

[0710] The SL PRS resource pool configured by the first communication device is a shared resource pool;

[0711] The SL PRS resource pool configured by the first communication device is a dedicated resource pool;

[0712] The SL PRS resource pool configured by the first communication device includes a shared resource pool and a dedicated resource pool.

[0713] In some embodiments, the SL PRS resource pool type information that the terminal should configure includes any of the following:

[0714] The terminal should be configured with a shared resource pool;

[0715] The terminal should be configured with a dedicated resource pool;

[0716] The terminal should be configured with a shared resource pool and a dedicated resource pool.

[0717] In some embodiments, the first control information further includes one or more of the following:

[0718] Source terminal ID; target terminal ID; resource reservation period; SL-PRS priority; broadcast type; SL-PRS request; terminal type.

[0719] In some embodiments, the dedicated resource pool is a resource pool dedicated to SL PRS transmission, and the shared resource pool is a resource pool shared by SL PRS transmission and SL data transmission.

[0720] In some embodiments, the first control information is carried by one or more of the following carriers:

[0721] First-level direct link control information SCI; second-level SCI; downlink control information DCI; radio resource control RRC signaling; SLPP signaling.

[0722] Fig.12 A schematic diagram of the structure of an information receiving device provided in an embodiment of the present application, such as Fig.12 As shown, the device comprises:

[0723] The receiving unit 1200 is configured to receive first control information sent by a first communication device, where the first control information includes one or more of the following indication information:

[0724] first indication information, where the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission;

[0725] second indication information, where the second indication information is used to indicate the SL PRS resource information carried in the first control information;

[0726] third indication information, where the third indication information is used to indicate SL PRS measurement report information carried in a physical direct link shared channel PSSCH associated with the first control information;

[0727] Fourth indication information, where the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data;

[0728] The fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device and / or the SL PRS resource pool type information that the terminal should configure.

[0729] In some embodiments, the first indication information indicates any of the following via at least one bit:

[0730] The through link transmission associated with the first control information does not include SL PRS transmission;

[0731] The direct link transmission associated with the first control information includes SL PRS transmission.

[0732] In some embodiments, the first indication information indicates any of the following via at least 2 bits:

[0733] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool;

[0734] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool, but does not include SL PRS transmission in a shared resource pool;

[0735] The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool, but includes SL PRS transmission in a shared resource pool;

[0736] The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool.

[0737] In some embodiments, the second indication information is used to indicate any of the following:

[0738] The SL PRS resource information carried in the first control information is a SL PRS resource identifier ID;

[0739] The SL PRS resource information carried in the first control information is SL PRS time-frequency resource information.

[0740] In some embodiments, each of the SL PRS resource IDs is used to uniquely determine the resource occupancy of a SL PRS resource in a time slot.

[0741] In some embodiments, the SL PRS time-frequency resource information includes one or more of the following:

[0742] Information used to indicate the granularity of SL PRS resource allocation;

[0743] Information used to indicate SL PRS time domain resource allocation;

[0744] Information used to indicate SL PRS frequency domain resource allocation;

[0745] Information used to indicate SL PRS resource unit offset RE offset allocation.

[0746] In some embodiments, the granularity of the SL PRS resource allocation includes one or more of the following:

[0747] Subchannel level; resource block RB level; SL PRS resource level; SL PRS resource set level.

[0748] In some embodiments, the information for indicating SL PRS time domain resource allocation includes one or more of the following:

[0749] The starting time domain unit index number of the SL PRS resource; the ending time domain unit index number of the SL PRS resource; the number of continuous time domain units of the SL PRS resource.

[0750] In some embodiments, the information for indicating SL PRS frequency domain resource allocation includes one or more of the following:

[0751] The starting frequency domain unit index number of the SL PRS resource; the ending frequency domain unit index number of the SL PRS resource; the number of continuous frequency domain units of the SL PRS resource.

[0752] In some embodiments, the information indicating SL PRS RE offset allocation includes one or more of the following:

[0753] RE offset of SL PRS resources; Comb size of SL PRS resources.

[0754] In some embodiments, the third indication information indicates any of the following items through at least 2 bits:

[0755] The PSSCH associated with the first control information does not carry an SL PRS measurement report;

[0756] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the shared resource pool;

[0757] The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SL PRS in the dedicated resource pool;

[0758] The SL PRS measurement report carried in the PSSCH associated with the first control information includes a measurement report corresponding to the SL PRS in the shared resource pool and a measurement report corresponding to the SL PRS in the dedicated resource pool.

[0759] In some embodiments, the third indication information further includes one or more of the following:

[0760] SLPP session ID; measurement report configuration information; corresponding PSSCH resource reservation information for measurement report.

[0761] In some embodiments, when the PSSCH associated with the first control information does not carry SL data, the PSSCH associated with the first control information carries a media access control layer control element MAC CE and a MAC header, and the MACCE or the MAC header contains a layer 2 source ID.

[0762] In some embodiments, the SL PRS resource pool type information configured by the first communication device includes any one of the following:

[0763] The SL PRS resource pool configured by the first communication device is a shared resource pool;

[0764] The SL PRS resource pool configured by the first communication device is a dedicated resource pool;

[0765] The SL PRS resource pool configured by the first communication device includes a shared resource pool and a dedicated resource pool.

[0766] In some embodiments, the SL PRS resource pool type information that the terminal should configure includes any of the following:

[0767] The terminal should be configured with a shared resource pool;

[0768] The terminal should be configured with a dedicated resource pool;

[0769] The terminal should be configured with a shared resource pool and a dedicated resource pool.

[0770] In some embodiments, the first control information further includes one or more of the following:

[0771] Source terminal ID; target terminal ID; resource reservation period; SL-PRS priority; broadcast type; SL-PRS request; terminal type.

[0772] In some embodiments, the dedicated resource pool is a resource pool dedicated to SL PRS transmission, and the shared resource pool is a resource pool shared by SL PRS transmission and SL data transmission.

[0773] In some embodiments, the first control information is carried by one or more of the following carriers:

[0774] First-level direct link control information SCI; second-level SCI; downlink control information DCI; radio resource control RRC signaling; SLPP signaling.

[0775] 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.

[0776] 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.

[0777] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0778] On the other hand, an embodiment of the present application further provides a non-transitory readable storage medium, wherein the non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the methods provided in the above embodiments.

[0779] It should be noted here that the non-transitory readable storage medium provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0780] The non-transitory readable storage medium can be any available medium or data storage device that can be accessed by a computer, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drive (SSD)), etc.

[0781] The technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0782] The terminal involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal may also be different. For example, in a 5G system, the terminal may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs) and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited in the embodiments of the present application.

[0783] The network device involved in the embodiment of the present application may be a base station, which may include multiple cells providing services for the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, and serve as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (Global System for Mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (evolutional Node B, eNB or e-NodeB) in the long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (Home evolved Node B, HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

[0784] Network devices and terminals can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.

[0785] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0786] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0787] These processor executable instructions may also be stored in a processor readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0788] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0789] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. An information indication method, characterized in that: Applied to a first communication device, comprising: Sending first control information to the terminal, where the first control information includes one or more of the following indication information: first indication information, where the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission; second indication information, where the second indication information is used to indicate the SL PRS resource information carried in the first control information; third indication information, where the third indication information is used to indicate SL PRS measurement report information carried in a physical direct link shared channel PSSCH associated with the first control information; Fourth indication information, where the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data; The fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device and / or the SL PRS resource pool type information that the terminal should configure.

2. The information indication method according to claim 1, characterized in that: The first indication information indicates any of the following items through at least one bit: The through link transmission associated with the first control information does not include SL PRS transmission; The direct link transmission associated with the first control information includes SL PRS transmission.

3. The information indication method according to claim 1, characterized in that: The first indication information indicates any of the following items through at least 2 bits: The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool; The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool, but does not include SL PRS transmission in a shared resource pool; The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool, but includes SL PRS transmission in a shared resource pool; The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool.

4. The information indication method according to claim 1, characterized in that: The second indication information is used to indicate any of the following: The SL PRS resource information carried in the first control information is a SL PRS resource identifier ID; The SL PRS resource information carried in the first control information is SL PRS time-frequency resource information.

5. The information indication method according to claim 4, characterized in that: Each of the SL PRS resource IDs is used to uniquely determine the resource occupancy of a SL PRS resource in a time slot.

6. The information indication method according to claim 4, characterized in that: The SL PRS time-frequency resource information includes one or more of the following: Information used to indicate the granularity of SL PRS resource allocation; Information used to indicate SL PRS time domain resource allocation; Information used to indicate SL PRS frequency domain resource allocation; Information used to indicate SL PRS resource unit offset RE offset allocation.

7. The information indicating method according to claim 6, characterized in that: The granularity of the SL PRS resource allocation includes one or more of the following: Subchannel level; resource block RB level; SL PRS resource level; SL PRS resource set level.

8. The information indication method according to claim 6, characterized in that: The information used to indicate the SL PRS time domain resource allocation includes one or more of the following: The starting time domain unit index number of the SL PRS resource; the ending time domain unit index number of the SL PRS resource; the number of continuous time domain units of the SL PRS resource.

9. The information indicating method according to claim 6, characterized in that: The information used to indicate the SL PRS frequency domain resource allocation includes one or more of the following: The starting frequency domain unit index number of the SL PRS resource; the ending frequency domain unit index number of the SL PRS resource; the number of continuous frequency domain units of the SL PRS resource.

10. The information indication method according to claim 6, characterized in that: The information used to indicate SL PRS REoffset allocation includes one or more of the following: RE offset of SL PRS resources; Comb size of SL PRS resources.

11. The information indicating method according to claim 1, characterized in that: The third indication information indicates any of the following items through at least 2 bits: The PSSCH associated with the first control information does not carry an SL PRS measurement report; The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SLPRS in the shared resource pool; The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SLPRS in the dedicated resource pool; The SL PRS measurement report carried in the PSSCH associated with the first control information includes a measurement report corresponding to the SLPRS in the shared resource pool and a measurement report corresponding to the SL PRS in the dedicated resource pool.

12. The information indication method according to claim 1 or 11, characterized in that: The third indication information may further include one or more of the following: SLPP session ID; measurement report configuration information; corresponding PSSCH resource reservation information for measurement report.

13. The information indicating method according to claim 1, characterized in that: In a case where the PSSCH associated with the first control information does not carry SL data, the PSSCH associated with the first control information carries a media access control layer control element MAC CE and a MAC header, and the MAC CE or the MAC header includes a layer 2 source ID.

14. The information indication method according to claim 1, characterized in that: The first control information further includes one or more of the following: Source terminal ID; target terminal ID; resource reservation period; SL-PRS priority; broadcast type; SL-PRS request; terminal type.

15. The information indication method according to claim 1, characterized in that: The first control information is carried by one or more of the following carriers: First-level direct link control information SCI; second-level SCI; downlink control information DCI; radio resource control RRC signaling; SLPP signaling.

16. A method for receiving information, characterized in that: Applied to terminals, including: Receive first control information sent by a first communication device, where the first control information includes one or more of the following indication information: first indication information, where the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission; second indication information, where the second indication information is used to indicate the SL PRS resource information carried in the first control information; third indication information, where the third indication information is used to indicate SL PRS measurement report information carried in a physical direct link shared channel PSSCH associated with the first control information; Fourth indication information, where the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data; The fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device and / or the SL PRS resource pool type information that the terminal should configure.

17. The information receiving method according to claim 16, characterized in that: The first indication information indicates any of the following items through at least one bit: The through link transmission associated with the first control information does not include SL PRS transmission; The direct link transmission associated with the first control information includes SL PRS transmission.

18. The information receiving method according to claim 16, characterized in that: The first indication information indicates any of the following items through at least 2 bits: The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool; The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool, but does not include SL PRS transmission in a shared resource pool; The through link transmission associated with the first control information does not include SL PRS transmission in a dedicated resource pool, but includes SL PRS transmission in a shared resource pool; The through link transmission associated with the first control information includes SL PRS transmission in a dedicated resource pool and SL PRS transmission in a shared resource pool.

19. The information receiving method according to claim 16, characterized in that: The second indication information is used to indicate any of the following: The SL PRS resource information carried in the first control information is a SL PRS resource identifier ID; The SL PRS resource information carried in the first control information is SL PRS time-frequency resource information.

20. The information receiving method according to claim 19, characterized in that: Each of the SL PRS resource IDs is used to uniquely determine the resource occupancy of a SL PRS resource in a time slot.

21. The information receiving method according to claim 19, characterized in that: The SL PRS time-frequency resource information includes one or more of the following: Information used to indicate the granularity of SL PRS resource allocation; Information used to indicate SL PRS time domain resource allocation; Information used to indicate SL PRS frequency domain resource allocation; Information used to indicate SL PRS resource unit offset RE offset allocation.

22. The information receiving method according to claim 21, characterized in that: The granularity of the SL PRS resource allocation includes one or more of the following: Subchannel level; resource block RB level; SL PRS resource level; SL PRS resource set level.

23. The information receiving method according to claim 21, characterized in that: The information used to indicate the SL PRS time domain resource allocation includes one or more of the following: The starting time domain unit index number of the SL PRS resource; the ending time domain unit index number of the SL PRS resource; the number of continuous time domain units of the SL PRS resource.

24. The information receiving method according to claim 21, characterized in that: The information used to indicate the SL PRS frequency domain resource allocation includes one or more of the following: The starting frequency domain unit index number of the SL PRS resource; the ending frequency domain unit index number of the SL PRS resource; the number of continuous frequency domain units of the SL PRS resource.

25. The information receiving method according to claim 21, characterized in that: The information used to indicate SL PRS REoffset allocation includes one or more of the following: RE offset of SL PRS resources; Comb size of SL PRS resources.

26. The information receiving method according to claim 16, characterized in that: The third indication information indicates any of the following items through at least 2 bits: The PSSCH associated with the first control information does not carry an SL PRS measurement report; The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SLPRS in the shared resource pool; The SL PRS measurement report carried in the PSSCH associated with the first control information is a measurement report corresponding to the SLPRS in the dedicated resource pool; The SL PRS measurement report carried in the PSSCH associated with the first control information includes a measurement report corresponding to the SLPRS in the shared resource pool and a measurement report corresponding to the SL PRS in the dedicated resource pool.

27. The information receiving method according to claim 16 or 26, characterized in that: The third indication information may further include one or more of the following: SLPP session ID; measurement report configuration information; corresponding PSSCH resource reservation information for measurement report.

28. The information receiving method according to claim 16, characterized in that: In a case where the PSSCH associated with the first control information does not carry SL data, the PSSCH associated with the first control information carries a media access control layer control element MAC CE and a MAC header, and the MAC CE or the MAC header includes a layer 2 source ID.

29. The information receiving method according to claim 16, characterized in that: The first control information further includes one or more of the following: Source terminal ID; target terminal ID; resource reservation period; SL-PRS priority; broadcast type; SL-PRS request; terminal type.

30. The information receiving method according to claim 16, characterized in that: The first control information is carried by one or more of the following carriers: First-level direct link control information SCI; second-level SCI; downlink control information DCI; radio resource control RRC signaling; SLPP signaling.

31. A first communication device, characterized in that: Including memory, transceiver, processor; A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Sending first control information to the terminal, where the first control information includes one or more of the following indication information: first indication information, where the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission; second indication information, where the second indication information is used to indicate the SL PRS resource information carried in the first control information; third indication information, where the third indication information is used to indicate SL PRS measurement report information carried in a physical direct link shared channel PSSCH associated with the first control information; Fourth indication information, where the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data; The fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device and / or the SL PRS resource pool type information that the terminal should configure.

32. A terminal, characterized in that: Including memory, transceiver, processor; A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Receive first control information sent by a first communication device, where the first control information includes one or more of the following indication information: first indication information, where the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission; second indication information, where the second indication information is used to indicate the SL PRS resource information carried in the first control information; third indication information, where the third indication information is used to indicate SL PRS measurement report information carried in a physical direct link shared channel PSSCH associated with the first control information; Fourth indication information, where the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data; The fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device and / or the SL PRS resource pool type information that the terminal should configure.

33. An information indicating device, characterized in that: include: A sending unit, configured to send first control information to a terminal, where the first control information includes one or more of the following indication information: first indication information, where the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission; second indication information, where the second indication information is used to indicate the SL PRS resource information carried in the first control information; third indication information, where the third indication information is used to indicate SL PRS measurement report information carried in a physical direct link shared channel PSSCH associated with the first control information; Fourth indication information, where the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data; The fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device and / or the SL PRS resource pool type information that the terminal should configure.

34. An information receiving device, characterized in that: include: A receiving unit, configured to receive first control information sent by a first communication device, wherein the first control information includes one or more of the following indication information: first indication information, where the first indication information is used to indicate whether the direct link transmission associated with the first control information includes a direct link positioning reference signal SL PRS transmission; second indication information, where the second indication information is used to indicate the SL PRS resource information carried in the first control information; third indication information, where the third indication information is used to indicate SL PRS measurement report information carried in a physical direct link shared channel PSSCH associated with the first control information; Fourth indication information, where the fourth indication information is used to indicate whether the PSSCH associated with the first control information carries SL data; The fifth indication information is used to indicate the SL PRS resource pool type information configured by the first communication device and / or the SL PRS resource pool type information that the terminal should configure.

35. A non-transitory readable storage medium, characterized in that The non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the method according to any one of claims 1 to 15.

36. A non-transitory readable storage medium, characterized in that The non-transitory readable storage medium stores a computer program, and the computer program is used to cause a processor to execute the method according to any one of claims 16 to 30.

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