An information transmission method, device, apparatus and non-transitory readable storage medium

Abstract

The application provides an information transmission method, device and equipment and a non-transient readable storage medium. The information transmission method comprises the following steps: receiving configuration information of a sidelink positioning reference signal (SL PRS) transmission time window sent by a first device; and transmitting SL PRS in the SL PRS transmission time window according to the configuration information. The application can support unified coordination and allocation of SL PRS resources in an out-of-coverage scenario, thereby supporting the use of double-difference technology to improve the measurement accuracy of phase, and further supporting the improvement of SL positioning performance.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to an information transmission method, apparatus, device, and non-transiently readable storage medium. Background Technology

[0002] Current positioning technologies based on carrier phase measurements can achieve centimeter-level accuracy, while SL (Sidelink) positioning, based on time or angle measurements, only achieves meter-level or decimeter-level accuracy, indicating that SL positioning performance needs improvement. Furthermore, in out-of-coverage scenarios, without a base station coordinating and allocating SL PRS (Sidelink Positioning Reference Signal) resources, the SL PRS transmitted autonomously by the SL UE (User Equipment) cannot utilize dual-differential technology to improve phase measurement accuracy.

[0003] As shown above, existing technologies have limitations such as the inability to support performance improvements in SL positioning. Summary of the Invention

[0004] The purpose of this application is to provide an information transmission method, apparatus, device, and non-transiently readable storage medium to solve the problem that the prior art cannot support the improvement of SL positioning performance.

[0005] To address the aforementioned technical problems, this application provides an information transmission method applied to a first terminal, comprising:

[0006] Receive the configuration information of the transmission time window of the direct link positioning reference signal (SL PRS) sent by the first device;

[0007] According to the configuration information, SL PRS is sent within the SL PRS sending time window.

[0008] In some embodiments, the configuration information includes at least one of the following:

[0009] Number of time windows;

[0010] Time window period;

[0011] Duration of the time window;

[0012] Time window location in the time domain;

[0013] Processing priority of SL PRS within the time window.

[0014] In some embodiments, sending SLPRS within the SLPRS transmission time window according to the configuration information includes:

[0015] According to the configuration information and transmission rules, SL PRS is transmitted within the SL PRS transmission time window;

[0016] The sending rules include at least one of the following:

[0017] The SL PRS may be sent or discarded depending on the processing priority;

[0018] The SL PRS is sent by default.

[0019] In some embodiments, sending or discarding the SL PRS according to processing priority includes:

[0020] The SL PRS is transmitted when its processing priority is higher than that of other pass-through channel information or other pass-through signals.

[0021] If the processing priority of SL PRS is lower than the processing priority of other direct link channel information or other direct link signals, the SL PRS is discarded and the other direct link channel information or other direct link signals are transmitted.

[0022] In some embodiments, the processing priority is the processing priority corresponding to the SL PRS carried in the configuration information, or the processing priority corresponding to the pre-configured SL PRS.

[0023] In some embodiments, the configuration information is configured by the first device based on first information; wherein the first information includes at least one of the following:

[0024] Configuration information for the resource selection window;

[0025] Information on reserved SL PRS transmission resources;

[0026] SL PRS periodic information;

[0027] SL PRS appointment information;

[0028] Pre-configuration information for SL PRS transmission time windows.

[0029] This application also provides an information transmission method applied to a second terminal, including:

[0030] The SL PRS transmitted by the first terminal is measured to obtain the direct link phase measurement; the SL PRS is transmitted by the first terminal within the SL PRS transmission time window;

[0031] Report the phase measurement of the direct link.

[0032] In some embodiments, the through-link phase measurement includes at least one of the following:

[0033] The first phase is the phase of the channel response of the first path or other path obtained based on the SL PRS resource element;

[0034] The second phase is the phase of the SL PRS direct link positioning frequency layer or the SL BWP center frequency of the direct link bandwidth portion;

[0035] The direct link reference signal phase difference SL RSCPD refers to the difference between the target terminal's direct link reference signal phase SL RSCP and the reference device's SL RSCP, where the reference device is a reference terminal or a positioning reference unit (PRU).

[0036] In some embodiments, reporting the through-link phase measurement includes:

[0037] The through-link phase measurements are reported periodically, semi-periodically, or aperiodically.

[0038] In some embodiments, reporting the through-link phase measurement includes:

[0039] Report the phase measurements of the direct link separately;

[0040] Alternatively, report the direct link phase measurement and the second information;

[0041] The second information includes at least one of the following:

[0042] Direct link positioning measurement;

[0043] Quality of phase measurement in through-link;

[0044] Antenna Reference Point Identifier (ARP ID);

[0045] Timestamp of the phase measurement of the through link;

[0046] Line-of-sight (LOS) or non-line-of-sight (NLOS) indication information;

[0047] SL PRS resource identifier or SL PRS resource set identifier.

[0048] This application also provides an information transmission method applied to a first device, including:

[0049] Configure the SL PRS transmission time window settings;

[0050] The configuration information is sent to the first terminal.

[0051] In some embodiments, the configuration information includes at least one of the following:

[0052] Number of time windows;

[0053] Time window period;

[0054] Duration of the time window;

[0055] Time window location in the time domain;

[0056] Processing priority of SL PRS within the time window.

[0057] In some embodiments, the configuration information for configuring the SL PRS transmission time window includes:

[0058] If the first terminal supports carrier phase positioning based on SL PRS, configure the SL PRS transmission time window configuration information.

[0059] In some embodiments, the configuration information for configuring the SL PRS transmission time window includes:

[0060] Based on the first information, configure the SL PRS transmission time window configuration information;

[0061] The first information includes at least one of the following:

[0062] Configuration information for the resource selection window;

[0063] Information on reserved SL PRS transmission resources;

[0064] SL PRS periodic information;

[0065] SL PRS appointment information;

[0066] Pre-configuration information for SL PRS transmission time windows.

[0067] In some embodiments, it also includes:

[0068] The system receives the direct link phase measurement corresponding to the SL PRS reported by the second terminal, wherein the SL PRS is sent by the first terminal within the SL PRS transmission time window.

[0069] In some embodiments, the through-link phase measurement includes at least one of the following:

[0070] The first phase is the phase of the channel response of the first path or other path obtained based on the SL PRS resource element;

[0071] The second phase is the phase of the SL PRS direct link positioning frequency layer or the SL BWP center frequency of the direct link bandwidth portion;

[0072] SL RSCPD, where SL RSCPD refers to the difference between the target terminal SL RSCP and the reference device SL RSCP, and the reference device is a reference terminal or PRU.

[0073] In some embodiments, receiving the pass-through link phase measurement corresponding to the SL PRS reported by the second terminal includes:

[0074] Receive the direct link phase measurement corresponding to the SL PRS reported periodically, semi-persistently, or non-periodically by the second terminal.

[0075] In some embodiments, receiving the pass-through link phase measurement corresponding to the SL PRS reported by the second terminal includes:

[0076] Receive the direct link phase measurement corresponding to the SL PRS reported separately by the second terminal;

[0077] Alternatively, receive the direct link phase measurement and second information corresponding to the SL PRS reported by the second terminal;

[0078] The second information includes at least one of the following:

[0079] Direct link positioning measurement;

[0080] Quality of phase measurement in through-link;

[0081] ARP ID;

[0082] Timestamp of the phase measurement of the through link;

[0083] LOS or NLOS indication information;

[0084] SL PRS resource identifier or SL PRS resource set identifier.

[0085] This application embodiment also provides an information transmission device, which is a first terminal, including a memory, a transceiver, and a processor:

[0086] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0087] The transceiver receives configuration information of the transmission time window for the direct link positioning reference signal (SL PRS) sent by the first device.

[0088] According to the configuration information, the transceiver transmits SL PRS within the SL PRS transmission time window.

[0089] In some embodiments, the configuration information includes at least one of the following:

[0090] Number of time windows;

[0091] Time window period;

[0092] Duration of the time window;

[0093] Time window location in the time domain;

[0094] Processing priority of SL PRS within the time window.

[0095] In some embodiments, transmitting SL PRS via the transceiver within the SL PRS transmission time window according to the configuration information includes:

[0096] According to the configuration information and transmission rules, the transceiver transmits SL PRS within the SL PRS transmission time window;

[0097] The sending rules include at least one of the following:

[0098] The SL PRS may be sent or discarded depending on the processing priority;

[0099] The SL PRS is sent by default.

[0100] In some embodiments, sending or discarding the SL PRS according to processing priority includes:

[0101] The SL PRS is transmitted when its processing priority is higher than that of other pass-through channel information or other pass-through signals.

[0102] If the processing priority of SL PRS is lower than the processing priority of other direct link channel information or other direct link signals, the SL PRS is discarded and the other direct link channel information or other direct link signals are transmitted.

[0103] In some embodiments, the processing priority is the processing priority corresponding to the SL PRS carried in the configuration information, or the processing priority corresponding to the pre-configured SL PRS.

[0104] In some embodiments, the configuration information is configured by the first device based on first information; wherein the first information includes at least one of the following:

[0105] Configuration information for the resource selection window;

[0106] Information on reserved SL PRS transmission resources;

[0107] SL PRS periodic information;

[0108] SL PRS appointment information;

[0109] Pre-configuration information for SL PRS transmission time windows.

[0110] This application embodiment also provides an information transmission device, which is a second terminal, including a memory, a transceiver, and a processor:

[0111] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0112] The SL PRS transmitted by the first terminal is measured to obtain the direct link phase measurement; the SL PRS is transmitted by the first terminal within the SL PRS transmission time window;

[0113] The transceiver reports the phase measurement of the direct link.

[0114] In some embodiments, the through-link phase measurement includes at least one of the following:

[0115] The first phase is the phase of the channel response of the first path or other path obtained based on the SL PRS resource element;

[0116] The second phase is the phase of the SL PRS direct link positioning frequency layer or the SL BWP center frequency of the direct link bandwidth portion;

[0117] The direct link reference signal phase difference SL RSCPD refers to the difference between the target terminal's direct link reference signal phase SL RSCP and the reference device's SL RSCP, where the reference device is a reference terminal or a positioning reference unit (PRU).

[0118] In some embodiments, reporting the through-link phase measurement includes:

[0119] The through-link phase measurements are reported periodically, semi-periodically, or aperiodically.

[0120] In some embodiments, reporting the through-link phase measurement includes:

[0121] Report the phase measurements of the direct link separately;

[0122] Alternatively, report the direct link phase measurement and the second information;

[0123] The second information includes at least one of the following:

[0124] Direct link positioning measurement;

[0125] Quality of phase measurement in through-link;

[0126] Antenna Reference Point Identifier (ARP ID);

[0127] Timestamp of the phase measurement of the through link;

[0128] Line-of-sight (LOS) or non-line-of-sight (NLOS) indication information;

[0129] SL PRS resource identifier or SL PRS resource set identifier.

[0130] This application embodiment also provides an information transmission device, which is a first device including a memory, a transceiver, and a processor.

[0131] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0132] Configure the SL PRS transmission time window settings;

[0133] The configuration information is sent to the first terminal via the transceiver.

[0134] In some embodiments, the configuration information includes at least one of the following:

[0135] Number of time windows;

[0136] Time window period;

[0137] Duration of the time window;

[0138] Time window location in the time domain;

[0139] Processing priority of SL PRS within the time window.

[0140] In some embodiments, the configuration information for configuring the SL PRS transmission time window includes:

[0141] If the first terminal supports carrier phase positioning based on SL PRS, configure the SL PRS transmission time window configuration information.

[0142] In some embodiments, the configuration information for configuring the SL PRS transmission time window includes:

[0143] Based on the first information, configure the SL PRS transmission time window configuration information;

[0144] The first information includes at least one of the following:

[0145] Configuration information for the resource selection window;

[0146] Information on reserved SL PRS transmission resources;

[0147] SL PRS periodic information;

[0148] SL PRS appointment information;

[0149] Pre-configuration information for SL PRS transmission time windows.

[0150] In some embodiments, the operation further includes:

[0151] The transceiver receives the pass-through link phase measurement corresponding to the SL PRS reported by the second terminal, wherein the SL PRS is sent by the first terminal within the SL PRS transmission time window.

[0152] In some embodiments, the through-link phase measurement includes at least one of the following:

[0153] The first phase is the phase of the channel response of the first path or other path obtained based on the SL PRS resource element;

[0154] The second phase is the phase of the SL PRS direct link positioning frequency layer or the SL BWP center frequency of the direct link bandwidth portion;

[0155] SL RSCPD, where SL RSCPD refers to the difference between the target terminal SL RSCP and the reference device SL RSCP, and the reference device is a reference terminal or PRU.

[0156] In some embodiments, receiving the pass-through link phase measurement corresponding to the SL PRS reported by the second terminal includes:

[0157] Receive the direct link phase measurement corresponding to the SL PRS reported periodically, semi-persistently, or non-periodically by the second terminal.

[0158] In some embodiments, receiving the pass-through link phase measurement corresponding to the SL PRS reported by the second terminal includes:

[0159] Receive the direct link phase measurement corresponding to the SL PRS reported separately by the second terminal;

[0160] Alternatively, receive the direct link phase measurement and second information corresponding to the SL PRS reported by the second terminal;

[0161] The second information includes at least one of the following:

[0162] Direct link positioning measurement;

[0163] Quality of phase measurement in through-link;

[0164] ARP ID;

[0165] Timestamp of the phase measurement of the through link;

[0166] LOS or NLOS indication information;

[0167] SL PRS resource identifier or SL PRS resource set identifier.

[0168] This application embodiment also provides an information transmission device, applied to a first terminal, including:

[0169] The first receiving unit is used to receive the configuration information of the transmission time window of the direct link positioning reference signal (SL PRS) sent by the first device;

[0170] The first transmitting unit is configured to transmit SL PRS within the SL PRS transmission time window according to the configuration information.

[0171] In some embodiments, the configuration information includes at least one of the following:

[0172] Number of time windows;

[0173] Time window period;

[0174] Duration of the time window;

[0175] Time window location in the time domain;

[0176] Processing priority of SL PRS within the time window.

[0177] In some embodiments, sending SLPRS within the SLPRS transmission time window according to the configuration information includes:

[0178] According to the configuration information and transmission rules, SL PRS is transmitted within the SL PRS transmission time window;

[0179] The sending rules include at least one of the following:

[0180] The SL PRS may be sent or discarded depending on the processing priority;

[0181] The SL PRS is sent by default.

[0182] In some embodiments, sending or discarding the SL PRS according to processing priority includes:

[0183] The SL PRS is transmitted when its processing priority is higher than that of other pass-through channel information or other pass-through signals.

[0184] If the processing priority of SL PRS is lower than the processing priority of other direct link channel information or other direct link signals, the SL PRS is discarded and the other direct link channel information or other direct link signals are transmitted.

[0185] In some embodiments, the processing priority is the processing priority corresponding to the SL PRS carried in the configuration information, or the processing priority corresponding to the pre-configured SL PRS.

[0186] In some embodiments, the configuration information is configured by the first device based on first information; wherein the first information includes at least one of the following:

[0187] Configuration information for the resource selection window;

[0188] Information on reserved SL PRS transmission resources;

[0189] SL PRS periodic information;

[0190] SL PRS appointment information;

[0191] Pre-configuration information for SL PRS transmission time windows.

[0192] This application also provides an information transmission device applied to a second terminal, comprising:

[0193] The first measurement unit is used to measure the SL PRS sent by the first terminal to obtain the direct link phase measurement; the SL PRS is sent by the first terminal within the SL PRS transmission time window;

[0194] The first reporting unit is used to report the phase measurement of the direct link.

[0195] In some embodiments, the through-link phase measurement includes at least one of the following:

[0196] The first phase is the phase of the channel response of the first path or other path obtained based on the SL PRS resource element;

[0197] The second phase is the phase of the SL PRS direct link positioning frequency layer or the SL BWP center frequency of the direct link bandwidth portion;

[0198] The direct link reference signal phase difference SL RSCPD refers to the difference between the target terminal's direct link reference signal phase SL RSCP and the reference device's SL RSCP, where the reference device is a reference terminal or a positioning reference unit (PRU).

[0199] In some embodiments, reporting the through-link phase measurement includes:

[0200] The through-link phase measurements are reported periodically, semi-periodically, or aperiodically.

[0201] In some embodiments, reporting the through-link phase measurement includes:

[0202] Report the phase measurements of the direct link separately;

[0203] Alternatively, report the direct link phase measurement and the second information;

[0204] The second information includes at least one of the following:

[0205] Direct link positioning measurement;

[0206] Quality of phase measurement in through-link;

[0207] Antenna Reference Point Identifier (ARP ID);

[0208] Timestamp of the phase measurement of the through link;

[0209] Line-of-sight (LOS) or non-line-of-sight (NLOS) indication information;

[0210] SL PRS resource identifier or SL PRS resource set identifier.

[0211] This application embodiment also provides an information transmission device, applied to a first device, including:

[0212] The first configuration unit is used to configure the configuration information of the SL PRS transmission time window;

[0213] The second sending unit is used to send the configuration information to the first terminal.

[0214] In some embodiments, the configuration information includes at least one of the following:

[0215] Number of time windows;

[0216] Time window period;

[0217] Duration of the time window;

[0218] Time window location in the time domain;

[0219] Processing priority of SL PRS within the time window.

[0220] In some embodiments, the configuration information for configuring the SL PRS transmission time window includes:

[0221] If the first terminal supports carrier phase positioning based on SL PRS, configure the SL PRS transmission time window configuration information.

[0222] In some embodiments, the configuration information for configuring the SL PRS transmission time window includes:

[0223] Based on the first information, configure the SL PRS transmission time window configuration information;

[0224] The first information includes at least one of the following:

[0225] Configuration information for the resource selection window;

[0226] Information on reserved SL PRS transmission resources;

[0227] SL PRS periodic information;

[0228] SL PRS appointment information;

[0229] Pre-configuration information for SL PRS transmission time windows.

[0230] In some embodiments, it also includes:

[0231] The second receiving unit is used to receive the direct link phase measurement corresponding to the SL PRS reported by the second terminal, wherein the SL PRS is sent by the first terminal within the SL PRS transmission time window.

[0232] In some embodiments, the through-link phase measurement includes at least one of the following:

[0233] The first phase is the phase of the channel response of the first path or other path obtained based on the SL PRS resource element;

[0234] The second phase is the phase of the SL PRS direct link positioning frequency layer or the SL BWP center frequency of the direct link bandwidth portion;

[0235] SL RSCPD, where SL RSCPD refers to the difference between the target terminal SL RSCP and the reference device SL RSCP, and the reference device is a reference terminal or PRU.

[0236] In some embodiments, receiving the pass-through link phase measurement corresponding to the SL PRS reported by the second terminal includes:

[0237] Receive the direct link phase measurement corresponding to the SL PRS reported periodically, semi-persistently, or non-periodically by the second terminal.

[0238] In some embodiments, receiving the pass-through link phase measurement corresponding to the SL PRS reported by the second terminal includes:

[0239] Receive the direct link phase measurement corresponding to the SL PRS reported separately by the second terminal;

[0240] Alternatively, receive the direct link phase measurement and second information corresponding to the SL PRS reported by the second terminal;

[0241] The second information includes at least one of the following:

[0242] Direct link positioning measurement;

[0243] Quality of phase measurement in through-link;

[0244] ARP ID;

[0245] Timestamp of the phase measurement of the through link;

[0246] LOS or NLOS indication information;

[0247] SL PRS resource identifier or SL PRS resource set identifier.

[0248] This application embodiment also provides a non-transient readable storage medium storing a program for causing a processor to execute the above-described information transmission method on the first terminal side, the second terminal side, or the first device side.

[0249] The beneficial effects of the above technical solution in this application are as follows:

[0250] In the above scheme, the information transmission method receives configuration information of the direct link positioning reference signal (SL PRS) transmission time window sent by the first device; according to the configuration information, the SL PRS is transmitted within the SL PRS transmission time window; this can support the unified and coordinated allocation of SL PRS resources in out-of-coverage scenarios, thereby supporting the use of dual differential technology to improve the phase measurement accuracy, and thus supporting the improvement of SL positioning performance. Attached Figure Description

[0251] Figure 1 This is a schematic diagram of the wireless communication system architecture according to an embodiment of this application;

[0252] Figure 2 This is a schematic flowchart of the information transmission method according to an embodiment of this application. Figure 1 ;

[0253] Figure 3 This is a schematic flowchart of the information transmission method according to an embodiment of this application. Figure 2 ;

[0254] Figure 4 This is a schematic flowchart of the information transmission method according to an embodiment of this application. Figure 3 ;

[0255] Figure 5 This is a schematic diagram of the information transmission device structure according to an embodiment of this application. Figure 1 ;

[0256] Figure 6 This is a schematic diagram of the information transmission device structure according to an embodiment of this application. Figure 2 ;

[0257] Figure 7 This is a schematic diagram of the information transmission device structure according to an embodiment of this application. Figure 3 ;

[0258] Figure 8 This is a schematic diagram of the information transmission device structure according to an embodiment of this application. Figure 1 ;

[0259] Figure 9 This is a schematic diagram of the information transmission device structure according to an embodiment of this application. Figure 2 ;

[0260] Figure 10 This is a schematic diagram of the information transmission device structure according to an embodiment of this application. Figure 3 . Detailed Implementation

[0261] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0262] In the embodiments of this application, the term "and / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0263] In the embodiments of this application, the term "multiple" refers to two or more, and other quantifiers are similar.

[0264] It should be noted that the technical solutions provided in this application can be applied to a variety of systems. For example, applicable systems may include Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Long Term Evolution Advanced (LTE-A), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), 5G New Radio (NR) and its evolutionary communication systems, and 6G (sixth generation mobile communication technology) systems. All of these systems include terminal equipment and network equipment. The system may also include a core network component, such as the Evolved Packet System (EPS) or the 5G system (5GS).

[0265] Figure 1 This diagram illustrates a block diagram of a wireless communication system to which embodiments of this application may be applied. The wireless communication system includes a terminal device (also referred to simply as a terminal) and a network device.

[0266] The terminal devices involved in the embodiments of this application can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in 5G or 6G systems, the terminal device may be called User Equipment (UE). Wireless terminal devices can be USB storage devices, other personal computer memory devices, and dongles. They can also communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices. For example, they can be portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the radio access network. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), personal computers, tablets, and Machine-type Communication (MTC) terminal devices. Wireless terminal devices can also be referred to as systems, subscriber units, subscriber stations, mobile stations, mobile devices, remote stations, access points, remote terminals, access terminals, user terminals, user agents, user devices, and wireless access devices and routers / modems that meet the limitations of this definition; however, this application does not limit the scope of the embodiments.

[0267] The network device involved in this application embodiment can be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, a base station may also be called an access point, or a device in the access network that communicates with wireless terminal devices through one or more sectors on the air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network equipment involved in the embodiments of this application can be a base transceiver station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a NodeB in a Wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, network testing equipment, etc., and is not limited in the embodiments of this application. In some network structures, the network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and distributed unit may also be geographically separated.

[0268] Network devices and terminal devices can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multiple-user MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, and can also be diversity transmission, precoding transmission, or beamforming transmission, etc.

[0269] The following section will first introduce the content related to the solutions provided in the embodiments of this application.

[0270] Currently, direct link positioning only supports positioning methods based on time and angle measurements, and its accuracy can only reach the meter and sub-meter levels.

[0271] Carrier phase positioning (CPP) can effectively improve positioning accuracy. However, non-ideal factors such as time offset, frequency offset, and antenna reference point in CPP can affect its positioning accuracy. To address this, dual-differential technology can be used to suppress the degradation of positioning performance caused by these non-ideal factors. The condition for using dual-differential technology is that both the terminal to be positioned and the PRU (positioning reference unit) are restricted from simultaneously receiving the measurement DL PRS (Downlink Positioning Reference Signal).

[0272] Among them, SL positioning supports both in-coverage and out-of-coverage scenarios. However, in out-of-coverage scenarios, there are no base stations or positioning servers (LMF (Location Management Function)) in the positioning scenario. The terminal autonomously selects time-frequency resources from the resource pool to send SL PRS (SL PRS sent by the SL UE autonomously selecting time-frequency resources cannot utilize double differential technology to improve the phase measurement accuracy).

[0273] Based on the above, embodiments of this application provide an information transmission method, apparatus, device, and non-transient readable storage medium to solve the problem that the prior art cannot support the improvement of SL positioning performance. The method, apparatus, device, and non-transient readable storage medium are based on the same application concept. Since the principles by which the method, apparatus, device, and non-transient readable storage medium solve the problem are similar, their implementations can be referred to interchangeably, and repeated details will not be repeated.

[0274] The information transmission method provided in this application embodiment is applied to a first terminal (which can be implemented as a sending terminal), such as... Figure 2 As shown, it includes:

[0275] Step 21: Receive the configuration information of the transmission time window of the direct link positioning reference signal (SL PRS) sent by the first device;

[0276] Step 22: Send SL PRS within the SL PRS sending time window according to the configuration information.

[0277] The information transmission method provided in this application embodiment receives configuration information of the SL PRS transmission time window sent by the first device; and transmits SL PRS within the SL PRS transmission time window according to the configuration information; it can support the unified and coordinated allocation of SL PRS resources in out-of-coverage scenarios, thereby supporting the use of dual differential technology to improve the phase measurement accuracy, and thus supporting the improvement of SL positioning performance.

[0278] The configuration information includes at least one of the following, or the configuration information may be at least one of the following: number of time windows; time window period; time window duration; time window time domain position (e.g., time slot number and / or start symbol); processing priority of SL PRS within the time window. This clarifies the above configuration information. The processing priority may include: transmission priority, or the processing priority may be a transmission priority, such as transmission priority rules between SL-PRS and other direct link channels or signals (e.g., PSCCH, PSSCH, PSFCH and / or SL CSI-RS) within the transmission time window, but is not limited to this.

[0279] In this embodiment of the application, sending SLPRS within the SL PRS sending time window according to the configuration information includes: sending SL PRS within the SL PRS sending time window according to the configuration information and sending rules; wherein, the sending rules include at least one of the following or the sending rules are at least one of the following: sending or discarding the SL PRS according to the processing priority; if no processing priority is configured, the SL PRS is sent by default. This can specifically implement the sending control of SL PRS.

[0280] The step of sending or discarding the SL PRS according to processing priority includes: sending the SL PRS when its processing priority is higher than that of other direct-link channel information or other direct-link signals; and discarding the SL PRS and sending the other direct-link channel information or other direct-link signals when its processing priority is lower than that of other direct-link channel information or other direct-link signals. This allows for specific control of SL PRS transmission based on processing priority. The processing priority can be implemented as a priority indicator, such as indicating that SL PRS takes precedence over PSSCH, and PSSCH takes precedence over SL CSI. In this case, when SL PRS and PSSCH appear in the same subframe or symbol, the transmitter only sends SL PRS and discards PSSCH, but this is not a limitation.

[0281] In this embodiment, the processing priority is either the processing priority corresponding to the SL PRS carried in the configuration information, or the pre-configured processing priority corresponding to the SL PRS. This allows for obtaining the processing priority in multiple ways.

[0282] The configuration information is configured by the first device based on the first information; wherein the first information includes at least one of the following or is at least one of the following: configuration information of the resource selection window; information of reserved SLPRS transmission resources; periodic information of SLPRS; reservation information of SLPRS; and pre-configuration information of SLPRS transmission time window. This allows for the accurate acquisition of the above configuration information.

[0283] This application also provides an information transmission method, applied to a second terminal (e.g., implemented as a receiving terminal), such as... Figure 3 As shown, it includes:

[0284] Step 31: Measure the SL PRS sent by the first terminal to obtain the direct link phase measurement; the SL PRS is sent by the first terminal within the SL PRS transmission time window;

[0285] Step 32: Report the phase measurement of the direct link.

[0286] Step 32 may include reporting the direct link phase measurement to the device performing the positioning calculation (such as the target terminal or head node), but is not limited to this.

[0287] The information transmission method provided in this application embodiment obtains the direct link phase measurement by measuring the SL PRS sent by the first terminal; the SL PRS is sent by the first terminal within the SL PRS transmission time window; the direct link phase measurement is reported; it can support the unified and coordinated allocation of SL PRS resources in out-of-coverage scenarios, thereby supporting the use of dual differential technology to improve the phase measurement accuracy, and thus supporting the improvement of SL positioning performance.

[0288] The direct link phase measurement includes at least one of the following, or the direct link phase measurement is at least one of the following: a first phase, which is the phase of the channel response of a first path or other path obtained based on the carrying SL PRS resource unit; a second phase, which is the phase of the direct link positioning frequency layer of the SL PRS or the center frequency of the direct link bandwidth portion SL BWP; and a direct link reference signal phase difference SL RSCPD, where SL RSCPD refers to the difference between the target terminal's direct link reference signal phase SL RSCP and the reference device's SL RSCP, and the reference device is a reference terminal or a positioning reference unit (PRU). This allows for explicit definition of the direct link phase measurement content.

[0289] In this embodiment of the application, reporting the through-link phase measurement includes: periodically, semi-continuously, or non-periodically reporting the through-link phase measurement. This allows for multiple methods of reporting the through-link phase measurement.

[0290] The reporting of the direct link phase measurement includes: reporting the direct link phase measurement alone; or reporting the direct link phase measurement and second information; wherein the second information includes at least one of the following or is at least one of the following: direct link positioning measurement; direct link phase measurement quality; antenna reference point identifier (ARP ID); timestamp of direct link phase measurement; line-of-sight (LOS) or non-line-of-sight (NLOS) indication information; SL PRS resource identifier or SL PRS resource set identifier. This also supports multiple methods for reporting direct link phase measurements. The direct link positioning measurement may include at least one of the following or may be at least one of the following: direct link angle of arrival (SL AOA), relative signal arrival time difference (SL RSTD), reference signal received power (SL PRS-RSRP) of the direct link positioning reference signal, reference signal received path power (SL PRS-RSRPP) of the direct link positioning reference signal, and transmit / receive time difference (SL PRS-Rx-Tx) of the direct link positioning reference signal; but is not limited to these.

[0291] This application also provides an information transmission method, applied to a first device (e.g., a head node), such as... Figure 4 As shown, it includes:

[0292] Step 41: Configure the SL PRS transmission time window settings;

[0293] Step 41 may include configuring SL PRS transmission time window configuration information for at least one terminal, such as the first terminal; however, it is not limited to this.

[0294] Step 42: Send the configuration information to the first terminal.

[0295] The information transmission method provided in this application embodiment configures the SL PRS transmission time window configuration information and sends the configuration information to the first terminal; it can support the unified and coordinated allocation of SL PRS resources in out-of-coverage scenarios, thereby supporting the use of dual differential technology to improve the phase measurement accuracy, and thus supporting the improvement of SL positioning performance.

[0296] The configuration information includes at least one of the following, or the configuration information is at least one of the following: number of time windows; time window period; time window duration; time window time domain position; processing priority of SL PRS within the time window. This clarifies the above configuration information.

[0297] In this embodiment of the application, the configuration information for configuring the SL PRS transmission time window includes: configuring the SL PRS transmission time window when the first terminal (or at least one other terminal) supports carrier phase positioning based on SL PRS. This can maximize the success rate of the configuration.

[0298] The configuration information for configuring the SL PRS transmission time window includes: configuring the SL PRS transmission time window configuration information according to first information; wherein the first information includes at least one of the following or is at least one of the following: resource selection window configuration information; reserved SL PRS transmission resource information; SL PRS period information; SL PRS reservation information; and SL PRS transmission time window pre-configuration information. This allows for accurate acquisition of the above configuration information.

[0299] Furthermore, the information transmission method further includes: receiving the direct link phase measurement corresponding to the SL PRS reported by the second terminal, wherein the SL PRS is sent by the first terminal within the SL PRS transmission time window. This allows for accurate acquisition of the aforementioned direct link phase measurement.

[0300] The direct link phase measurement includes at least one of the following, or the direct link phase measurement is at least one of the following: a first phase, which is the phase of the channel response of a first path or other path obtained based on the carrying SL PRS resource unit; a second phase, which is the phase of the direct link positioning frequency layer of the SL PRS or the center frequency of the direct link bandwidth portion SL BWP; and SL RSCPD, which refers to the difference between the target terminal's SL RSCP and the reference device's SL RSCP, where the reference device is a reference terminal or PRU. This clarifies the aforementioned direct link phase measurement.

[0301] In this embodiment of the application, receiving the direct link phase measurement corresponding to the SL PRS reported by the second terminal includes: receiving the direct link phase measurement corresponding to the SL PRS reported periodically, semi-persistently, or non-periodically by the second terminal. This supports multiple modes of transmission of the aforementioned direct link phase measurement.

[0302] The receiving of the SL PRS corresponding direct link phase measurement reported by the second terminal includes: receiving the SL PRS corresponding direct link phase measurement reported separately by the second terminal; or, receiving the SL PRS corresponding direct link phase measurement and second information reported by the second terminal; wherein the second information includes at least one of the following or is at least one of the following: direct link positioning measurement; direct link phase measurement quality; ARP ID; timestamp of direct link phase measurement; LOS or NLOS indication information; SL PRS resource identifier or SL PRS resource set identifier. This also supports multiple modes of transmission of the above-mentioned direct link phase measurement.

[0303] It should be noted that the relevant content on the first terminal side, the second terminal side, and the first device side can be referred to each other, and repeated parts will not be repeated. Similar descriptions can be referred to each other (for example, "including at least one of the following" can be replaced with: "The first information is at least one of the following"), and repeated parts will not be repeated.

[0304] The information transmission method provided in the embodiments of this application will be illustrated by examples below.

[0305] To address the aforementioned technical problems, this application provides an information transmission method, specifically a measurement and reporting scheme for direct-link phase measurements. This involves a time window configuration method for scenarios outside coverage. The sending UE (corresponding to the first terminal) transmits SL PRS within the time window, and the receiving UE (corresponding to the second terminal) receives and measures the SL PRS to obtain the direct-link phase measurement. Subsequently, the positioning accuracy of SL can be improved based on this phase measurement. Examples of the contents involved in this application are provided below:

[0306] (1) The UE (which may include the sending UE, etc.) reports its positioning capability (to the head node). The positioning capability depends on the UE's capability. This makes it easier for the head node (corresponding to the first device mentioned above) to determine that the UE supports the carrier phase positioning method based on SL PRS.

[0307] (2) In the scenario outside the coverage, the head node configures the SL PRS transmission time window according to the positioning capability reported by the UE (when the UE supports the carrier phase positioning method based on SL PRS); this can correspond to the configuration information of configuring the SL PRS transmission time window when the first terminal supports carrier phase positioning based on SL PRS.

[0308] The head node can be a serving UE, an anchor UE, a PRU, or other devices (such as network devices that do not provide network coverage).

[0309] (3) The configuration information of the SL PRS transmission time window may include one or more combinations of information such as quantity, period, duration, and time domain position (such as time slot number and / or start symbol); corresponding to the above configuration information may include at least one of the following: number of time windows; time window period; time window duration; time window time domain position; processing priority of SL PRS in the time window (such as transmission priority).

[0310] 1) The transmission priority rules between SL-PRS and other direct link channels or signals (such as PSCCH (Physical Sidelink Control Channel), PSSCH (Physical Sidelink Shared Channel), PSFCH (Physical Sidelink Feedback Channel), and / or SL (Sidelink) CSI-RS (Channel State Information Reference Signal)) can be specified within the transmission time window (which can correspond to transmitting SL PRS within the SL PRS transmission time window according to the configuration information and transmission rules described above), for example:

[0311] a) When the priority of SL-PRS is higher than that of PSCCH, PSSCH, PSFCH and / or SL CSI-RS, the terminal prioritizes sending SL-PRS; this may correspond to the above-mentioned sending rules, including sending or discarding the SL PRS according to the processing priority; the sending or discarding of the SL PRS according to the processing priority includes: sending the SL PRS when the processing priority of SL PRS is higher than the processing priority of other direct link channel information or the processing priority of other direct link signals;

[0312] b) When the priority of SL-PRS is lower than that of PSCCH, PSSCH, PSFCH and / or SL CSI-RS, the terminal prioritizes sending PSCCH, PSSCH, PSFCH and / or SL CSI-RS; this may correspond to the above-mentioned transmission rules, including sending or discarding the SL PRS according to the processing priority; the sending or discarding of the SL PRS according to the processing priority includes: when the processing priority of SL PRS is lower than that of other direct link channel information or other direct link signals, discarding the SL PRS and sending the other direct link channel information or other direct link signals.

[0313] The priority rule can be notified to other nodes (e.g., the UE) by the head node via signaling, or it can be a pre-configured rule; it can correspond to the processing priority of the SL PRS carried in the configuration information, or it can be the pre-configured processing priority of the SL PRS.

[0314] 2) If the above priority rules are not configured, the UE will send SL PRS by default and will not send other direct link channels or signals; the corresponding transmission rules include: if no processing priority is configured, the UE will send the SLPRS by default.

[0315] (4) SL PRS transmission time window configuration method 1: The head node configures the SL PRS transmission time window based on the configuration information of the resource selection window; the transmitting UE selects SL PRS transmission resources within the resource selection window. Specifically, the time domain information of the resource selection window can be used to configure the SL PRS transmission time window for transmitting SL PRS at overlapping time domain positions (i.e., within the resource selection window); this can correspond to the configuration information of the SL PRS transmission time window for the first terminal receiving the direct link positioning reference signal sent by the first device; according to the configuration information, SL PRS is transmitted within the SL PRS transmission time window. The configuration information is configured by the first device based on first information; wherein, the first information includes: the configuration information of the resource selection window.

[0316] Among them, the duration of the resource selection window is relatively long. If no transmission time window is configured, the transmitting UE will be unable to use the double differential technique to eliminate non-ideal factors in the phase measurement process if it directly transmits SL PRS within the resource selection window.

[0317] (5) SL PRS transmission time window configuration method 2: The head node reserves SL PRS transmission resources for the transmitting UE, and the head node configures an SL PRS transmission time window for the transmitting UE based on the reserved SL PRS transmission resources; this can correspond to the configuration information of the SL PRS transmission time window for the first terminal receiving the direct link positioning reference signal sent by the first device; according to the configuration information, SL PRS is transmitted within the SL PRS transmission time window. The configuration information is configured by the first device according to first information; wherein, the first information includes: information on the reserved SL PRS transmission resources.

[0318] (6) SL PRS transmission time window configuration method 3: The head node configures the time window based on the SL PRS periodic information (or reservation information); the time domain position of SL PRS transmission is determined based on the SL PRS periodic information or reservation information (reserving the next transmission), thereby completing the configuration of the SL PRS transmission time window; this can correspond to the configuration information of the SL PRS transmission time window for the first terminal receiving the direct link positioning reference signal sent by the first device; according to the configuration information, SL PRS is transmitted within the SL PRS transmission time window. The configuration information is configured by the first device based on first information; wherein, the first information includes at least one of the following: SL PRS periodic information; SL PRS reservation information.

[0319] (7) SL PRS transmission time window configuration method 4: Pre-configured time window; the head node can select an SL PRS transmission time window for the transmitting UE from a pre-configured time window set; this corresponds to the configuration information of the SL PRS transmission time window for the first terminal receiving the direct link positioning reference signal sent by the first device; according to the configuration information, SL PRS is transmitted within the SL PRS transmission time window. The configuration information is configured by the first device based on first information; wherein, the first information includes: pre-configuration information of the SL PRS transmission time window.

[0320] After configuring the time window using the above four methods, the head node can send the relevant information of the time window configuration to the sending UE, but it is not limited to this.

[0321] (8) Receive the UE receive the SL PRS measurement and obtain the direct link phase measurement (which can correspond to the SL PRS sent by the first terminal mentioned above, and obtain the direct link phase measurement; the SL PRS is sent by the first terminal within the SL PRS transmission time window):

[0322] 1) Definition 1 (time domain) of the straight-link phase measurement SL RSCP (Sidelink Reference Signal Carrier Phase): The phase of the channel response of the first path or other path obtained based on the SL PRS resource unit; it can correspond to the first phase mentioned above, which is the phase of the channel response of the first path or other path obtained based on the SL PRS resource unit.

[0323] 2) Definition 2 (frequency domain) of the through-link phase measurement SL RSCP: The phase of the center frequency of the SL positioning frequency layer or the SLBWP (Bandwith Part) of the SL PRS; which can correspond to the second phase mentioned above, which is the phase of the center frequency of the through-link positioning frequency layer or the through-link bandwidth part SL BWP of the SL PRS.

[0324] 3) Definition of the direct link phase measurement SL RSCPD (Sidelink Reference Signal Carrier Phase Difference): The difference between the target UE's SL RSCP and the reference UE's (or PRU's) SL RSCP; it can correspond to the above-mentioned direct link reference signal phase difference SL RSCPD, where SL RSCPD refers to the difference between the target terminal's direct link reference signal phase SL RSCP and the reference device's SL RSCP, and the reference device is a reference terminal or positioning reference unit PRU.

[0325] (9) The phase measurement of the direct link can be reported periodically, semi-continuously, or aperiodically; the phase measurement of the direct link can be reported periodically, semi-continuously, or aperiodically by the second terminal mentioned above.

[0326] (10) Straight-through link phase measurements can be reported independently or in conjunction with SL legacy positioning measurements. Legacy positioning measurements include: SL (Straight-through link) AOA (Sidelink Angle of Arrival), SL RSTD (Relative Signal Time Difference), SL PRS-RSRP (Reference Signal Received Power), SL PRS-RSRPP (Reference Signal Received Path Power / Received Power of the i-th Path of the Reference Signal), SLPRS-Rx-Tx (transmit and receive) time difference, etc. The direct link phase measurement can be reported separately by the second terminal mentioned above; or, the direct link phase measurement and second information can be reported. The second information includes the following: direct link positioning measurement; the positioning measurement includes at least one of the following: direct link angle of arrival (SL AOA), relative signal time difference (SLRSTD), reference signal received power (SL PRS-RSRP) of the direct link positioning reference signal, reference signal received path power (SL PRS-RSRPP) of the direct link positioning reference signal, and transmit / receive time difference (SL PRS-Rx-Tx) of the direct link positioning reference signal. The receiving UE can report the above measurements to the target UE or the head node (i.e., the entity used to calculate the positioning, which is not limited here).

[0327] (11) Straight-through link phase measurements can be reported in conjunction with one or more of the following information:

[0328] 1) Quality of phase measurement in the through link;

[0329] 2) ARP (Antenna Reference Point) ID (Identification);

[0330] 3) (Measurement quantity) timestamp;

[0331] 4) LOS (Line of Sight) or NLOS (Non-Line of Sight) indication information;

[0332] 5) SL PRS resource ID or SL PRS resource set ID;

[0333] The above (11) may correspond to the direct link phase measurement and the second information reported by the second terminal; wherein the second information includes at least one of the following: quality of direct link phase measurement; antenna reference point identifier (ARP ID); timestamp of direct link phase measurement; line-of-sight (LOS) or non-line-of-sight (NLOS) indication information; SL PRS resource identifier or SL PRS resource set identifier.

[0334] The following are specific examples of this application.

[0335] Example 1 (Configuring the SL PRS transmission time window based on the configuration information of the resource selection window):

[0336] This application provides a method for configuring an SL PRS transmission time window in scenarios outside coverage. It mainly involves configuring the SL PRS transmission time window according to the configuration information of the resource selection window, transmitting SL PRS within the SL PRS transmission time window, receiving SL PRS and measuring SL PRS to obtain the direct link phase measurement, thereby improving the positioning accuracy of the direct link.

[0337] In the direct link, the transmitting UE selects time-frequency resources from the candidate SL PRS resource set within the resource selection window for transmitting SL PRS. The configuration information of the resource selection window may include: the size of the resource selection window [n+T1, n+T2], where T1≤T proc,1 T1 is related to the UE's capabilities, T proc,1 This refers to the transmission processing delay; T2 is related to the UE's capabilities, T2 ≥ T2 min T2 min T2 is the shortest time that the UE needs to wait before it can reselect resources. min Candidate values ​​include, for example, {1, 5, 10, 20} × 2μ, in milliseconds, where the μ values ​​corresponding to subcarrier frequencies of 15, 30, 60, and 120 kHz are 0, 1, 2, and 3, respectively; if T2 min >PDB, then modify T2 min =PDB, where PDB stands for Packet Delay Budget; n is the timeslot number. In this application, the head node determines the time domain position of SL PRS based on the resource selection window configuration information and configures the SL PRS transmission time window. The configuration information of the SL PRS transmission time window may include one or more of the following combinations: the number of SL PRS transmission time windows, the period, the duration, and the time domain position (such as timeslot number and start symbol).

[0338] In this application, the transmitting UE can, within the SL PRS transmission time window, choose to discard the SL PRS signal or other direct-link signals or channels according to the collision handling rules. The receiving UE completes the reception and measurement of the SL PRS, obtains the direct-link phase measurement, and reports it. Specifically, the transmission priority rules between SL-PRS and other direct-link channels or signals (such as PSCCH, PSSCH, PSFCH, and / or SL CSI-RS) within the time window can be specified: when the priority of SL-PRS is higher than that of PSCCH, PSSCH, PSFCH, and / or SL CSI-RS, the terminal prioritizes transmitting SL-PRS; when the priority of SL-PRS is lower than that of PSCCH, PSSCH, PSFCH, and / or SL CSI-RS, the terminal prioritizes transmitting PSCCH, PSSCH, PSFCH, and / or SL CSI-RS.

[0339] This embodiment enables the configuration of the SL PRS transmission time window based on the configuration information of the resource selection window, which simplifies the configuration process of the SL PRS transmission time window and ensures that the SL PRS time and frequency resources selected by the transmitting UE fall within the SL PRS transmission time window.

[0340] Example 2 (Configuring SL PRS transmission time window based on reserved SL PRS transmission resources):

[0341] This application provides a method for configuring an SL PRS transmission time window in scenarios outside coverage. It mainly involves configuring an SL PRS transmission time window based on reserved SL PRS transmission resources, transmitting SL PRS within the SL PRS transmission time window, and receiving SL PRS to receive and measure the SL PRS, thereby obtaining the phase measurement of the direct link and improving the positioning accuracy of the direct link.

[0342] The head node can determine the time domain location of SL PRS based on the SL PRS transmission resources reserved by the third device, and then configure the SL PRS transmission time window. The configuration information of the SL PRS transmission time window may include one or more combinations of the following: the number of SL PRS transmission time windows, the period, the duration, and the time domain location (such as the timeslot number and start symbol). The third device can be the head node, the transmitting UE, or any UE other than the head node and the transmitting UE. The transmitting UE can transmit SL PRS on the reserved SL PRS transmission resources. The receiving UE can, within the SL PRS transmission time window, choose to discard the SL PRS signal or discard other direct link signals or channels according to the collision handling rules, complete the reception and measurement of SL PRS, obtain the direct link phase measurement, and report it. The transmission priority rules between SL-PRS and other direct link channels or signals (such as PSCCH, PSSCH, PSFCH and / or SL CSI-RS) can be specified within the time window: when the priority of SL-PRS is higher than that of PSCCH, PSSCH, PSFCH and / or SL CSI-RS, the terminal transmits SL-PRS first; when the priority of SL-PRS is lower than that of PSCCH, PSSCH, PSFCH and / or SL CSI-RS, the terminal transmits PSCCH, PSSCH, PSFCH and / or SL CSI-RS first.

[0343] In this embodiment, the head node acts as an intermediate node. Combined with the reserved SL PRS transmission resources configured with the SL PRS transmission time window, it can be guaranteed that the measurement SL PRS signal will be received 100% within the SL PRS transmission time window.

[0344] Example 3 (Configuring the SL PRS transmission time window based on SL PRS periodic information):

[0345] This application provides a method for configuring the SL PRS transmission time window in scenarios with coverage outside the coverage area. It mainly involves configuring the SL PRS transmission time window according to the periodic information of the SL PRS, transmitting the SL PRS within the SL PRS transmission time window, receiving the SL PRS measurement by the receiving UE, obtaining the direct link phase measurement, and improving the positioning accuracy of the direct link.

[0346] The head node can determine the time domain position of SL PRS based on the transmission period of SL PRS to configure the SL PRS transmission time window. The transmitting UE can periodically transmit SL PRS signals according to the periodic information. The receiving UE can, within the SL PRS transmission time window, choose to discard the SL PRS signal or other direct link signals or channels according to the collision handling rules, to complete the reception and measurement of SL PRS, obtain the direct link phase measurement, and report it. The transmission priority rules between SL-PRS and other direct link channels or signals (such as PSCCH, PSSCH, PSFCH, and / or SL CSI-RS) within the time window can be specified: when the priority of SL-PRS is higher than that of PSCCH, PSSCH, PSFCH, and / or SL CSI-RS, the terminal transmits SL-PRS first; when the priority of SL-PRS is lower than that of PSCCH, PSSCH, PSFCH, and / or SL CSI-RS, the terminal transmits PSCCH, PSSCH, PSFCH, and / or SL CSI-RS first.

[0347] This embodiment provides a solution applicable to SL PRS periodic positioning.

[0348] Example 4 (Configuring the SL PRS transmission time window based on pre-configuration information of the SL PRS transmission time window):

[0349] This application provides a method for configuring SL PRS transmission time windows in scenarios outside coverage. It mainly involves selecting a suitable SL PRS transmission time window from a pre-configured set of SL PRS transmission time windows, transmitting SL PRS within the SL PRS transmission time window, and receiving SL PRS to obtain the phase measurement of the direct link, thereby improving the positioning accuracy of the direct link.

[0350] The head node can select a suitable SL PRS transmission time window from a pre-configured set of SL PRS transmission time windows to receive SL PRS measurements from the UE. The pre-configured set of SL PRS transmission time windows can be configured at the factory; or it can be configured by the network (such as gNB (the next generation NodeB) or LMF) based on a resource pool when the terminal moves into a coverage area, but it is not limited to these. The transmitting UE can autonomously select SL PRS transmission resources according to the SL PRS transmission time window. Within the SL PRS transmission time window, the transmitting UE can choose to discard the SL PRS signal or discard other direct link signals or channels according to collision handling rules. The receiving UE completes the reception and measurement of SL PRS, obtains the direct link phase measurement, and reports it. The transmission priority rules between SL-PRS and other direct link channels or signals (such as PSCCH, PSSCH, PSFCH and / or SL CSI-RS) can be specified within the time window: when the priority of SL-PRS is higher than that of PSCCH, PSSCH, PSFCH and / or SL CSI-RS, the terminal transmits SL-PRS first; when the priority of SL-PRS is lower than that of PSCCH, PSSCH, PSFCH and / or SL CSI-RS, the terminal transmits PSCCH, PSSCH, PSFCH and / or SL CSI-RS first.

[0351] The solution provided in this embodiment can select an SLPRS transmission time window based on the factory-set SL PRS transmission time window set for UE to receive and measure SL PRS.

[0352] Based on the above, this application provides a method for configuring the SL PRS transmission time window in out-of-coverage scenarios: For direct link positioning in out-of-coverage (no network coverage) scenarios, the SL PRS transmission time window can be configured according to the configuration information of the resource selection window, the reserved SL PRS transmission resources, the SL PRS period information, the SL PRS reservation information and / or (the pre-configuration information of the SL PRS transmission time window); the transmitting UE can choose to discard the SL PRS signal or discard other direct link signals or channels according to the collision handling rules within the SL PRS transmission time window; the receiving UE completes the reception and measurement of SL PRS, obtains the direct link phase measurement, and thus completes SL positioning.

[0353] This application also provides an information transmission device, which is a first terminal, such as... Figure 5 As shown, it includes a memory 51, a transceiver 52, and a processor 53:

[0354] Memory 51 is used to store computer programs; transceiver 52 is used to send and receive data under the control of processor 53; processor 53 is used to read the computer program in memory 51 and perform the following operations:

[0355] The transceiver 52 receives the configuration information of the transmission time window of the direct link positioning reference signal SL PRS sent by the first device.

[0356] According to the configuration information, the transceiver 52 transmits SL PRS within the SL PRS transmission time window.

[0357] The information transmission device provided in this application embodiment receives configuration information of the direct link positioning reference signal (SL PRS) transmission time window sent by a first device; and transmits SL PRS within the SL PRS transmission time window according to the configuration information; it can support the unified and coordinated allocation of SL PRS resources in out-of-coverage scenarios, thereby supporting the use of dual differential technology to improve the phase measurement accuracy, and thus supporting the improvement of SL positioning performance.

[0358] Specifically, transceiver 52 is used to receive and send data under the control of processor 53.

[0359] Among them, Figure 5 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 53 and memory represented by memory 51 together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 52 can be multiple components, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. For different user equipment, the user interface 54 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0360] The processor 53 is responsible for managing the bus architecture and general processing, while the memory 51 can store the data used by the processor 53 when performing operations.

[0361] In some embodiments, the processor 53 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), and the processor may also adopt a multi-core architecture.

[0362] The processor executes any of the methods described in the embodiments of this application according to the obtained executable instructions by calling a computer program stored in memory. The processor and memory may also be physically separated.

[0363] The configuration information includes at least one of the following: number of time windows; time window period; time window duration; time window time domain position; and processing priority of SL PRS within the time window.

[0364] In this embodiment of the application, the step of sending SL PRS through the transceiver within the SL PRS transmission time window according to the configuration information includes: sending SL PRS through the transceiver within the SL PRS transmission time window according to the configuration information and transmission rules; wherein, the transmission rules include at least one of the following: sending or discarding the SL PRS according to the processing priority; if no processing priority is configured, the SL PRS is sent by default.

[0365] The step of sending or discarding the SL PRS according to processing priority includes: sending the SL PRS when the processing priority of the SL PRS is higher than the processing priority of other direct link channel information or other direct link signals; and discarding the SL PRS and sending the other direct link channel information or other direct link signals when the processing priority of the SL PRS is lower than the processing priority of other direct link channel information or other direct link signals.

[0366] In this embodiment of the application, the processing priority is the processing priority corresponding to the SL PRS carried in the configuration information, or the processing priority corresponding to the pre-configured SL PRS.

[0367] The configuration information is configured by the first device based on the first information; wherein the first information includes at least one of the following: configuration information of the resource selection window; information of the reserved SL PRS transmission resources; periodic information of SL PRS; reservation information of SL PRS; and pre-configuration information of the SL PRS transmission time window.

[0368] It should be noted that the device provided in this application embodiment can implement all the method steps implemented in the first terminal side method embodiment and achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0369] This application also provides an information transmission device, which is a second terminal, such as... Figure 6 As shown, it includes a memory 61, a transceiver 62, and a processor 63:

[0370] Memory 61 is used to store computer programs; transceiver 62 is used to send and receive data under the control of processor 63; processor 63 is used to read the computer programs in memory 61 and perform the following operations:

[0371] The SL PRS transmitted by the first terminal is measured to obtain the direct link phase measurement; the SL PRS is transmitted by the first terminal within the SL PRS transmission time window;

[0372] The transceiver 62 reports the phase measurement of the direct link.

[0373] The information transmission device provided in this application embodiment obtains the direct link phase measurement by measuring the SL PRS sent by the first terminal; the SL PRS is sent by the first terminal within the SL PRS transmission time window; the direct link phase measurement is reported; it can support the unified and coordinated allocation of SL PRS resources in out-of-coverage scenarios, thereby supporting the use of dual differential technology to improve the phase measurement accuracy, and thus supporting the improvement of SL positioning performance.

[0374] Specifically, transceiver 62 is used to receive and send data under the control of processor 63.

[0375] Among them, Figure 6In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 63 and memory represented by memory 61 together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. Transceiver 62 can be multiple components, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. For different user equipment, user interface 64 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0376] The processor 63 is responsible for managing the bus architecture and general processing, and the memory 61 can store the data used by the processor 63 when performing operations.

[0377] In some embodiments, the processor 63 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), and the processor may also adopt a multi-core architecture.

[0378] The processor executes any of the methods described in the embodiments of this application according to the obtained executable instructions by calling a computer program stored in memory. The processor and memory may also be physically separated.

[0379] The direct link phase measurement includes at least one of the following: a first phase, which is the phase of the channel response of a first path or other path obtained based on the carrying SL PRS resource unit; a second phase, which is the phase of the center frequency of the direct link positioning frequency layer or the direct link bandwidth portion SL BWP of the SL PRS; and a direct link reference signal phase difference SL RSCPD, which is the difference between the target terminal direct link reference signal phase SL RSCP and the reference device SL RSCP, wherein the reference device is a reference terminal or a positioning reference unit PRU.

[0380] In this embodiment of the application, the reporting of the direct link phase measurement includes: periodically, semi-continuously, or non-periodically reporting the direct link phase measurement.

[0381] The reporting of the direct link phase measurement includes: reporting the direct link phase measurement alone; or reporting the direct link phase measurement and second information; wherein the second information includes at least one of the following: direct link positioning measurement; direct link phase measurement quality; antenna reference point identifier (ARP ID); timestamp of direct link phase measurement; line-of-sight (LOS) or non-line-of-sight (NLOS) indication information; SL PRS resource identifier or SL PRS resource set identifier.

[0382] It should be noted that the device provided in this application embodiment can implement all the method steps implemented in the above second terminal side method embodiment and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.

[0383] This application also provides an information transmission device, which is a first device, such as... Figure 7 As shown, it includes a memory 71, a transceiver 72, and a processor 73.

[0384] Memory 71 is used to store computer programs; transceiver 72 is used to send and receive data under the control of processor 73; processor 73 is used to read the computer program in memory 71 and perform the following operations:

[0385] Configure the SL PRS transmission time window settings;

[0386] The configuration information is sent to the first terminal via the transceiver 72.

[0387] The information transmission device provided in this application embodiment configures the SL PRS transmission time window configuration information and sends the configuration information to the first terminal; it can support the unified and coordinated allocation of SL PRS resources in out-of-coverage scenarios, thereby supporting the use of dual differential technology to improve the phase measurement accuracy, and thus supporting the improvement of SL positioning performance.

[0388] Transceiver 72 is used to receive and send data under the control of processor 73.

[0389] In the case where the first device is implemented as a network device, Figure 7In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 73) and memory (memory 71). The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 72 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. The processor 73 is responsible for managing the bus architecture and general processing, and the memory 71 can store data used by the processor 73 during operation.

[0390] The processor 73 can 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 can also adopt a multi-core architecture.

[0391] It should be noted that, if the first device is implemented as a terminal, the architecture details can be found in the relevant architecture explanations for the first terminal side and / or the second terminal side, and will not be repeated here.

[0392] The configuration information includes at least one of the following: number of time windows; time window period; time window duration; time window time domain position; and processing priority of SL PRS within the time window.

[0393] In this embodiment of the application, the configuration information for configuring the SL PRS transmission time window includes: configuring the configuration information for the SL PRS transmission time window when the first terminal supports carrier phase positioning based on SL PRS.

[0394] The configuration information for configuring the SL PRS transmission time window includes: configuring the configuration information for the SL PRS transmission time window according to the first information; wherein the first information includes at least one of the following: configuration information for the resource selection window; information on the reserved SL PRS transmission resources; periodic information for SL PRS; reservation information for SL PRS; and pre-configuration information for the SL PRS transmission time window.

[0395] Furthermore, the operation also includes: receiving, via the transceiver, the direct link phase measurement quantity corresponding to the SL PRS reported by the second terminal, wherein the SL PRS is sent by the first terminal within the SL PRS transmission time window.

[0396] The direct link phase measurement includes at least one of the following: a first phase, which is the phase of the channel response of the first path or other path obtained based on the SL PRS resource unit; a second phase, which is the phase of the direct link positioning frequency layer or the center frequency of the direct link bandwidth portion SL BWP of the SL PRS; and SLRSCPD, where SL RSCPD refers to the difference between the target terminal SL RSCP and the reference device SL RSCP, and the reference device is a reference terminal or PRU.

[0397] In this embodiment of the application, receiving the direct link phase measurement corresponding to the SL PRS reported by the second terminal includes: receiving the direct link phase measurement corresponding to the SL PRS reported by the second terminal periodically, semi-persistently, or non-periodically.

[0398] The step of receiving the through-link phase measurement data corresponding to the SL PRS reported by the second terminal includes: receiving the through-link phase measurement data corresponding to the SL PRS reported by the second terminal alone; or receiving the through-link phase measurement data corresponding to the SL PRS reported by the second terminal and second information; wherein the second information includes at least one of the following: through-link positioning measurement data; through-link phase measurement data quality; ARP ID; through-link phase measurement data timestamp; LOS or NLOS indication information; SL PRS resource identifier or SL PRS resource set identifier.

[0399] It should be noted that the device provided in this application embodiment can implement all the method steps implemented in the first device-side method embodiment and achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0400] This application embodiment also provides an information transmission device, applied to a first terminal, such as... Figure 8 As shown, it includes:

[0401] The first receiving unit 81 is used to receive the configuration information of the transmission time window of the direct link positioning reference signal SL PRS sent by the first device;

[0402] The first transmitting unit 82 is used to transmit SLPRS within the SLPRS transmission time window according to the configuration information.

[0403] The information transmission device provided in this application embodiment receives configuration information of the direct link positioning reference signal (SL PRS) transmission time window sent by a first device; and transmits SL PRS within the SL PRS transmission time window according to the configuration information; it can support the unified and coordinated allocation of SL PRS resources in out-of-coverage scenarios, thereby supporting the use of dual differential technology to improve the phase measurement accuracy, and thus supporting the improvement of SL positioning performance.

[0404] The configuration information includes at least one of the following: number of time windows; time window period; time window duration; time window time domain position; and processing priority of SL PRS within the time window.

[0405] In this embodiment of the application, sending SLPRS within the SL PRS sending time window according to the configuration information includes: sending SL PRS within the SL PRS sending time window according to the configuration information and the sending rules; wherein, the sending rules include at least one of the following: sending or discarding the SL PRS according to the processing priority; if no processing priority is configured, the SL PRS is sent by default.

[0406] The step of sending or discarding the SL PRS according to processing priority includes: sending the SL PRS when the processing priority of the SL PRS is higher than the processing priority of other direct link channel information or other direct link signals; and discarding the SL PRS and sending the other direct link channel information or other direct link signals when the processing priority of the SL PRS is lower than the processing priority of other direct link channel information or other direct link signals.

[0407] In this embodiment of the application, the processing priority is the processing priority corresponding to the SL PRS carried in the configuration information, or the processing priority corresponding to the pre-configured SL PRS.

[0408] The configuration information is configured by the first device based on the first information; wherein the first information includes at least one of the following: configuration information of the resource selection window; information of the reserved SL PRS transmission resources; periodic information of SL PRS; reservation information of SL PRS; and pre-configuration information of the SL PRS transmission time window.

[0409] It should be noted that the apparatus provided in this application embodiment can implement all the method steps implemented in the first terminal side method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0410] This application also provides an information transmission device for use in a second terminal, such as... Figure 9 As shown, it includes:

[0411] The first measurement unit 91 is used to measure the SL PRS sent by the first terminal to obtain the direct link phase measurement; the SL PRS is sent by the first terminal within the SL PRS transmission time window;

[0412] The first reporting unit 92 is used to report the phase measurement of the direct link.

[0413] The information transmission device provided in this application embodiment obtains the direct link phase measurement by measuring the SL PRS sent by the first terminal; the SL PRS is sent by the first terminal within the SL PRS transmission time window; the direct link phase measurement is reported; it can support the unified and coordinated allocation of SL PRS resources in out-of-coverage scenarios, thereby supporting the use of dual differential technology to improve the phase measurement accuracy, and thus supporting the improvement of SL positioning performance.

[0414] The direct link phase measurement includes at least one of the following: a first phase, which is the phase of the channel response of a first path or other path obtained based on the carrying SL PRS resource unit; a second phase, which is the phase of the center frequency of the direct link positioning frequency layer or the direct link bandwidth portion SL BWP of the SL PRS; and a direct link reference signal phase difference SL RSCPD, which is the difference between the target terminal direct link reference signal phase SL RSCP and the reference device SL RSCP, wherein the reference device is a reference terminal or a positioning reference unit PRU.

[0415] In this embodiment of the application, the reporting of the direct link phase measurement includes: periodically, semi-continuously, or non-periodically reporting the direct link phase measurement.

[0416] The reporting of the direct link phase measurement includes: reporting the direct link phase measurement alone; or reporting the direct link phase measurement and second information; wherein the second information includes at least one of the following: direct link positioning measurement; direct link phase measurement quality; antenna reference point identifier (ARP ID); timestamp of direct link phase measurement; line-of-sight (LOS) or non-line-of-sight (NLOS) indication information; SL PRS resource identifier or SL PRS resource set identifier.

[0417] It should be noted that the apparatus provided in this application embodiment can implement all the method steps implemented in the above second terminal side method embodiment and can achieve the same technical effect. Here, the parts that are the same as those in the method embodiment and the beneficial effects will not be described in detail.

[0418] This application embodiment also provides an information transmission device, applied to a first device, such as... Figure 10 As shown, it includes:

[0419] The first configuration unit 101 is used to configure the configuration information of the SL PRS transmission time window;

[0420] The second sending unit 102 is used to send the configuration information to the first terminal.

[0421] The information transmission device provided in this application embodiment configures the SL PRS transmission time window configuration information and sends the configuration information to the first terminal; it can support the unified and coordinated allocation of SL PRS resources in out-of-coverage scenarios, thereby supporting the use of dual differential technology to improve the phase measurement accuracy, and thus supporting the improvement of SL positioning performance.

[0422] The configuration information includes at least one of the following: number of time windows; time window period; time window duration; time window time domain position; and processing priority of SL PRS within the time window.

[0423] In this embodiment of the application, the configuration information for configuring the SL PRS transmission time window includes: configuring the configuration information for the SL PRS transmission time window when the first terminal supports carrier phase positioning based on SL PRS.

[0424] The configuration information for configuring the SL PRS transmission time window includes: configuring the configuration information for the SL PRS transmission time window according to the first information; wherein the first information includes at least one of the following: configuration information for the resource selection window; information on the reserved SL PRS transmission resources; periodic information for SL PRS; reservation information for SL PRS; and pre-configuration information for the SL PRS transmission time window.

[0425] Furthermore, the information transmission device further includes: a second receiving unit, used to receive the direct link phase measurement quantity corresponding to the SL PRS reported by the second terminal, wherein the SL PRS is sent by the first terminal within the SL PRS transmission time window.

[0426] The direct link phase measurement includes at least one of the following: a first phase, which is the phase of the channel response of the first path or other path obtained based on the SL PRS resource unit; a second phase, which is the phase of the direct link positioning frequency layer or the center frequency of the direct link bandwidth portion SL BWP of the SL PRS; and SLRSCPD, where SL RSCPD refers to the difference between the target terminal SL RSCP and the reference device SL RSCP, and the reference device is a reference terminal or PRU.

[0427] In this embodiment of the application, receiving the direct link phase measurement corresponding to the SL PRS reported by the second terminal includes: receiving the direct link phase measurement corresponding to the SL PRS reported by the second terminal periodically, semi-persistently, or non-periodically.

[0428] The step of receiving the through-link phase measurement data corresponding to the SL PRS reported by the second terminal includes: receiving the through-link phase measurement data corresponding to the SL PRS reported by the second terminal alone; or receiving the through-link phase measurement data corresponding to the SL PRS reported by the second terminal and second information; wherein the second information includes at least one of the following: through-link positioning measurement data; through-link phase measurement data quality; ARP ID; through-link phase measurement data timestamp; LOS or NLOS indication information; SL PRS resource identifier or SL PRS resource set identifier.

[0429] It should be noted that the apparatus provided in this application embodiment can implement all the method steps implemented in the first device-side method embodiment and achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0430] It should be noted that the division of units in the embodiments of this application is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0431] If the integrated unit is implemented as 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 this application, in essence, 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. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0432] This application embodiment also provides a non-transient readable storage medium storing a program for causing a processor to execute the above-described information transmission method on the first terminal side, the second terminal side, or the first device side.

[0433] The non-transiently readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to magnetic memory (e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO)), optical memory (e.g., compact disc (CD), digital video disc (DVD), Blu-ray disc (BD), high-definition versatile disc (HVD)), and semiconductor memory (e.g., ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND (Non-volatile Memory Device) FLASH), solid state hard disk (SSD)).

[0434] The implementation embodiments of the information transmission method on the first terminal side, the second terminal side, or the first device side described above are all applicable to the embodiments of the non-transiently readable storage medium and can achieve the same technical effect.

[0435] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take 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) containing computer-usable program code.

[0436] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0437] 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 particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0438] These processors can execute instructions that can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable device for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0439] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. An information transmission method, applied to a first terminal, characterized in that, include: Receive the configuration information of the transmission time window of the direct link positioning reference signal (SL PRS) sent by the first device; According to the configuration information, SL PRS is sent within the SL PRS sending time window.

2. The information transmission method according to claim 1, characterized in that, The configuration information includes at least one of the following: Number of time windows; Time window period; Duration of the time window; Time window location in the time domain; Processing priority of SL PRS within the time window.

3. The information transmission method according to claim 1 or 2, characterized in that, The step of sending SL PRS within the SL PRS transmission time window according to the configuration information includes: According to the configuration information and transmission rules, SL PRS is transmitted within the SL PRS transmission time window; The sending rules include at least one of the following: The SL PRS may be sent or discarded depending on the processing priority; The SL PRS is sent by default.

4. The information transmission method according to claim 3, characterized in that, The step of sending or discarding the SL PRS according to processing priority includes: The SL PRS is transmitted when its processing priority is higher than that of other pass-through channel information or other pass-through signals. If the processing priority of SL PRS is lower than the processing priority of other direct link channel information or other direct link signals, the SL PRS is discarded and the other direct link channel information or other direct link signals are transmitted.

5. The information transmission method according to claim 3, characterized in that, The processing priority is the processing priority corresponding to the SL PRS carried in the configuration information, or the processing priority corresponding to the pre-configured SL PRS.

6. The information transmission method according to claim 1, characterized in that, The configuration information is configured by the first device based on the first information; wherein the first information includes at least one of the following: Configuration information for the resource selection window; Information on reserved SL PRS transmission resources; SL PRS periodic information; SL PRS appointment information; Pre-configuration information for SL PRS transmission time windows.

7. An information transmission method applied to a second terminal, characterized in that, include: The SL PRS transmitted by the first terminal is measured to obtain the direct link phase measurement; the SL PRS is transmitted by the first terminal within the SL PRS transmission time window; Report the phase measurement of the direct link.

8. The information transmission method according to claim 7, characterized in that, The through-link phase measurement includes at least one of the following: The first phase is the phase of the channel response of the first path or other path obtained based on the SL PRS resource element; The second phase is the phase of the SLBWP center frequency of the direct link positioning frequency layer of the SLBWP or the direct link bandwidth portion of the SLBWP. The direct link reference signal phase difference SL RSCPD refers to the difference between the target terminal's direct link reference signal phase SL RSCP and the reference device's SL RSCP, where the reference device is a reference terminal or a positioning reference unit (PRU).

9. The information transmission method according to claim 7, characterized in that, The reported direct link phase measurement includes: The through-link phase measurements are reported periodically, semi-periodically, or aperiodically.

10. The information transmission method according to claim 7, characterized in that, The reported direct link phase measurement includes: Report the phase measurements of the direct link separately; Alternatively, report the direct link phase measurement and the second information; The second information includes at least one of the following: Direct link positioning measurement; Quality of phase measurement in through-link; Antenna Reference Point Identifier (ARP ID); Timestamp of the phase measurement of the through link; Line-of-sight (LOS) or non-line-of-sight (NLOS) indication information; SL PRS resource identifier or SL PRS resource set identifier.

11. An information transmission method, applied to a first device, characterized in that, include: Configure the SL PRS transmission time window settings; The configuration information is sent to the first terminal.

12. The information transmission method according to claim 11, characterized in that, The configuration information includes at least one of the following: Number of time windows; Time window period; Duration of the time window; Time window location in the time domain; Processing priority of SL PRS within the time window.

13. The information transmission method according to claim 11, characterized in that, The configuration information for configuring the SL PRS transmission time window includes: If the first terminal supports carrier phase positioning based on SL PRS, configure the SL PRS transmission time window configuration information.

14. The information transmission method according to claim 11, characterized in that, The configuration information for configuring the SL PRS transmission time window includes: Based on the first information, configure the SL PRS transmission time window configuration information; The first information includes at least one of the following: Configuration information for the resource selection window; Information on reserved SL PRS transmission resources; SL PRS periodic information; SL PRS appointment information; Pre-configuration information for SL PRS transmission time windows.

15. The information transmission method according to claim 14, characterized in that, Also includes: The system receives the direct link phase measurement corresponding to the SL PRS reported by the second terminal, wherein the SL PRS is sent by the first terminal within the SL PRS transmission time window.

16. The information transmission method according to claim 15, characterized in that, The through-link phase measurement includes at least one of the following: The first phase is the phase of the channel response of the first path or other path obtained based on the SL PRS resource element; The second phase is the phase of the SLBWP center frequency of the direct link positioning frequency layer of the SLBWP or the direct link bandwidth portion of the SLBWP. SL RSCPD, where SL RSCPD refers to the difference between the target terminal SL RSCP and the reference device SL RSCP, and the reference device is a reference terminal or PRU.

17. The information transmission method according to claim 15, characterized in that, The received SLPRS corresponding pass-through link phase measurement data reported by the second terminal includes: Receive the direct link phase measurement corresponding to the SL PRS reported periodically, semi-persistently, or non-periodically by the second terminal.

18. The information transmission method according to claim 15, characterized in that, The received SLPRS corresponding pass-through link phase measurement data reported by the second terminal includes: Receive the direct link phase measurement corresponding to the SL PRS reported separately by the second terminal; Alternatively, receive the direct link phase measurement and second information corresponding to the SL PRS reported by the second terminal; The second information includes at least one of the following: Direct link positioning measurement; Quality of phase measurement in through-link; ARP ID; Timestamp of the phase measurement of the through link; LOS or NLOS indication information; SL PRS resource identifier or SL PRS resource set identifier.

19. An information transmission device, wherein the information transmission device is a first terminal, characterized in that, Includes memory, transceiver, and processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: The transceiver receives configuration information of the transmission time window for the direct link positioning reference signal (SL PRS) sent by the first device. According to the configuration information, the transceiver transmits SL PRS within the SL PRS transmission time window.

20. The information transmission device according to claim 19, characterized in that, The configuration information includes at least one of the following: Number of time windows; Time window period; Duration of the time window; Time window location in the time domain; Processing priority of SL PRS within the time window.

21. The information transmission device according to claim 19 or 20, characterized in that, The step of transmitting SL PRS via the transceiver within the SL PRS transmission time window according to the configuration information includes: According to the configuration information and transmission rules, the transceiver transmits SLPRS within the SLPRS transmission time window; The sending rules include at least one of the following: The SL PRS may be sent or discarded depending on the processing priority; The SL PRS is sent by default.

22. The information transmission device according to claim 21, characterized in that, The step of sending or discarding the SL PRS according to processing priority includes: The SL PRS is transmitted when its processing priority is higher than that of other pass-through channel information or other pass-through signals. If the processing priority of SL PRS is lower than the processing priority of other direct link channel information or other direct link signals, the SL PRS is discarded and the other direct link channel information or other direct link signals are transmitted.

23. The information transmission device according to claim 21, characterized in that, The processing priority is the processing priority corresponding to the SL PRS carried in the configuration information, or the processing priority corresponding to the pre-configured SL PRS.

24. The information transmission device according to claim 19, characterized in that, The configuration information is configured by the first device based on the first information; wherein the first information includes at least one of the following: Configuration information for the resource selection window; Information on reserved SL PRS transmission resources; SL PRS periodic information; SL PRS appointment information; Pre-configuration information for SL PRS transmission time windows.

25. An information transmission device, wherein the information transmission device is a second terminal, characterized in that, Includes memory, transceiver, and processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: The SL PRS transmitted by the first terminal is measured to obtain the direct link phase measurement; the SL PRS is transmitted by the first terminal within the SL PRS transmission time window; The transceiver reports the phase measurement of the direct link.

26. The information transmission device according to claim 25, characterized in that, The through-link phase measurement includes at least one of the following: The first phase is the phase of the channel response of the first path or other path obtained based on the SL PRS resource element; The second phase is the phase of the SLBWP center frequency of the direct link positioning frequency layer of the SLBWP or the direct link bandwidth portion of the SLBWP. The direct link reference signal phase difference SL RSCPD refers to the difference between the target terminal's direct link reference signal phase SL RSCP and the reference device's SL RSCP, where the reference device is a reference terminal or a positioning reference unit (PRU).

27. The information transmission device according to claim 25, characterized in that, The reported direct link phase measurement includes: The through-link phase measurements are reported periodically, semi-periodically, or aperiodically.

28. The information transmission device according to claim 25, characterized in that, The reported direct link phase measurement includes: Report the phase measurements of the direct link separately; Alternatively, report the direct link phase measurement and the second information; The second information includes at least one of the following: Direct link positioning measurement; Quality of phase measurement in through-link; Antenna Reference Point Identifier (ARP ID); Timestamp of the phase measurement of the through link; Line-of-sight (LOS) or non-line-of-sight (NLOS) indication information; SL PRS resource identifier or SL PRS resource set identifier.

29. An information transmission device, wherein the information transmission device is a first device, characterized in that, Includes memory, transceiver, and processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: Configure the SL PRS transmission time window settings; The configuration information is sent to the first terminal via the transceiver.

30. The information transmission device according to claim 29, characterized in that, The configuration information includes at least one of the following: Number of time windows; Time window period; Duration of the time window; Time window location in the time domain; Processing priority of SL PRS within the time window.

31. The information transmission device according to claim 29, characterized in that, The configuration information for configuring the SL PRS transmission time window includes: If the first terminal supports carrier phase positioning based on SL PRS, configure the SL PRS transmission time window configuration information.

32. The information transmission device according to claim 29, characterized in that, The configuration information for configuring the SL PRS transmission time window includes: Based on the first information, configure the SL PRS transmission time window configuration information; The first information includes at least one of the following: Configuration information for the resource selection window; Information on reserved SL PRS transmission resources; SL PRS periodic information; SL PRS appointment information; Pre-configuration information for SL PRS transmission time windows.

33. The information transmission device according to claim 32, characterized in that, The operation also includes: The transceiver receives the direct link phase measurement corresponding to the SL PRS reported by the second terminal, wherein the SL PRS is sent by the first terminal within the SL PRS transmission time window.

34. The information transmission device according to claim 33, characterized in that, The through-link phase measurement includes at least one of the following: The first phase is the phase of the channel response of the first path or other path obtained based on the SL PRS resource element; The second phase is the phase of the SLBWP center frequency of the direct link positioning frequency layer of the SLBWP or the direct link bandwidth portion of the SLBWP. SL RSCPD, where SL RSCPD refers to the difference between the target terminal SL RSCP and the reference device SL RSCP, and the reference device is a reference terminal or PRU.

35. The information transmission device according to claim 33, characterized in that, The received SLPRS corresponding pass-through link phase measurement data reported by the second terminal includes: Receive the direct link phase measurement corresponding to the SL PRS reported periodically, semi-persistently, or non-periodically by the second terminal.

36. The information transmission device according to claim 33, characterized in that, The received SLPRS corresponding pass-through link phase measurement data reported by the second terminal includes: Receive the direct link phase measurement corresponding to the SL PRS reported separately by the second terminal; Alternatively, receive the direct link phase measurement and second information corresponding to the SL PRS reported by the second terminal; The second information includes at least one of the following: Direct link positioning measurement; Quality of phase measurement in through-link; ARP ID; Timestamp of the phase measurement of the through link; LOS or NLOS indication information; SL PRS resource identifier or SL PRS resource set identifier.

37. An information transmission device, applied to a first terminal, characterized in that, include: The first receiving unit is used to receive the configuration information of the transmission time window of the direct link positioning reference signal (SL PRS) sent by the first device; The first transmitting unit is configured to transmit SL PRS within the SL PRS transmission time window according to the configuration information.

38. An information transmission device applied to a second terminal, characterized in that, include: The first measurement unit is used to measure the SL PRS sent by the first terminal to obtain the direct link phase measurement; the SL PRS is sent by the first terminal within the SL PRS transmission time window; The first reporting unit is used to report the phase measurement of the direct link.

39. An information transmission device, applied to a first device, characterized in that, include: The first configuration unit is used to configure the configuration information of the SL PRS transmission time window; The second sending unit is used to send the configuration information to the first terminal.

40. A non-transiently readable storage medium, characterized in that, The non-transiently readable storage medium stores a program for causing a processor to execute the information transmission method according to any one of claims 1 to 18.

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