A method, apparatus, device and storage medium for transmitting SL positioning capability

Abstract

The present disclosure provides a method, device and storage medium for transmitting SL positioning capability. The method comprises: in the case that a network device participates in SL positioning between terminal devices, transmitting SL positioning capability information to the network device. The method of the present disclosure can transmit the SL positioning capability of the UE to the decision maker in the case that the network device participates in the SL positioning, so that the decision maker makes a decision.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to a transmission method, device and equipment of SL positioning capability and a storage medium. BACKGROUND

[0002] In a communication system, direct communication between terminal devices is realized by introducing a sidelink (SL). After the introduction of the SL, when positioning between terminal devices, a decision needs to be made based on the SL positioning capability of the terminal device. SUMMARY

[0003] The present disclosure provides a transmission method, device and equipment of SL positioning capability, so as to provide a method for interaction of SL positioning capability in the case that a network device participates in SL positioning between terminal devices.

[0004] In a first aspect, the present disclosure provides a transmission method of SL positioning capability, executed by a first terminal device, comprising:

[0005] In the case that a network device participates in SL positioning between terminal devices, SL positioning capability information is sent to the network device.

[0006] Therefore, in the present disclosure, a method for interaction of SL positioning capability in the case that a network device participates in SL positioning between terminal devices is provided, so as to send the SL positioning capability of the UE to the decision maker in the case that the network device participates in SL positioning, so that the decision maker makes a decision.

[0007] In a second aspect, the present disclosure provides a transmission method of SL positioning capability, executed by a network device, comprising:

[0008] In the case that a network device participates in SL positioning between terminal devices, SL positioning capability information sent by a first terminal device is received.

[0009] In a third aspect, the present disclosure provides a communication device, comprising:

[0010] A transceiver module is configured to send SL positioning capability information to a network device in the case that the network device participates in SL positioning between terminal devices.

[0011] In a fourth aspect, the present disclosure provides a communication device, comprising:

[0012] A transceiver module is configured to receive SL positioning capability information sent by a first terminal device in the case that a network device participates in SL positioning between terminal devices.

[0013] In a fifth aspect, an embodiment of the present disclosure provides a communication apparatus, which comprises a processor, and the processor executes a computer program in a memory to make the communication apparatus execute the method in the first aspect or the second aspect.

[0014] In a sixth aspect, an embodiment of the present disclosure provides a communication apparatus, which comprises a processor and a memory, and the memory stores a computer program; the processor executes the computer program stored in the memory to make the communication apparatus execute the method in the first aspect or the second aspect.

[0015] In a seventh aspect, an embodiment of the present disclosure provides a communication apparatus, which comprises a processor and an interface circuit, the interface circuit is configured to receive code instructions and transmit the code instructions to the processor, and the processor is configured to execute the code instructions to make the apparatus execute the method in the first aspect or the second aspect.

[0016] In an eighth aspect, an embodiment of the present disclosure provides a communication system, which comprises the communication apparatus in the third aspect or the fourth aspect, or the communication apparatus in the fifth aspect, or the communication apparatus in the sixth aspect, or the communication apparatus in the seventh aspect.

[0017] In a ninth aspect, an embodiment of the present disclosure provides a computer readable storage medium, which is configured to store instructions for the network device, and the instructions, when executed, make the terminal device execute the method in the first aspect or the second aspect.

[0018] In a tenth aspect, the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, causes the computer to execute the method in the first aspect or the second aspect.

[0019] In an eleventh aspect, the present disclosure provides a chip system, which comprises at least one processor and an interface, and the interface is configured to support the network device to implement functions related to the method in the first aspect or the second aspect, for example, at least one of determining or processing data and information related to the method. In a possible design, the chip system further comprises a memory, and the memory is configured to store computer programs and data necessary for the source secondary node. The chip system can be composed of a chip, or can comprise a chip and other discrete devices.

[0020] In a twelfth aspect, the present disclosure provides a computer program, which, when executed on a computer, causes the computer to execute the method in the first aspect or the second aspect. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above mentioned and / or additional aspects and advantages of the present disclosure will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

[0022] Figure 1 A schematic diagram of an architecture of a SL-TDOA positioning provided by an embodiment of the present disclosure;

[0023] Figure 2 A schematic diagram of an architecture of a communication system provided by an embodiment of the present disclosure;

[0024] Figure 3 A schematic diagram of a process of a transmission method of SL positioning capability provided by an embodiment of the present disclosure;

[0025] Figure 4 A schematic diagram of a process of a transmission method of SL positioning capability provided by another embodiment of the present disclosure;

[0026] Figure 5 A schematic diagram of a process of a transmission method of SL positioning capability provided by yet another embodiment of the present disclosure;

[0027] Figure 6 A schematic diagram of a process of a transmission method of SL positioning capability provided by yet another embodiment of the present disclosure;

[0028] Figure 7 A schematic diagram of a process of a transmission method of SL positioning capability provided by yet another embodiment of the present disclosure;

[0029] Figure 8 A schematic diagram of a process of a transmission method of SL positioning capability provided by yet another embodiment of the present disclosure;

[0030] Figure 9 A schematic diagram of a process of a transmission method of SL positioning capability provided by yet another embodiment of the present disclosure;

[0031] Figure 10 A schematic diagram of a process of a transmission method of SL positioning capability provided by yet another embodiment of the present disclosure;

[0032] Figure 11 A schematic diagram of a process of a transmission method of SL positioning capability provided by yet another embodiment of the present disclosure;

[0033] Figure 12 A schematic diagram of a process of a transmission method of SL positioning capability provided by yet another embodiment of the present disclosure;

[0034] Figure 13 A schematic diagram of a process of a transmission method of SL positioning capability provided by yet another embodiment of the present disclosure;

[0035] Figure 14A flowchart of a method for transmitting SL positioning capability according to another embodiment of the present disclosure;

[0036] Figure 15 A flowchart of a method for transmitting SL positioning capability according to another embodiment of the present disclosure;

[0037] Figure 16 A flowchart of a method for transmitting SL positioning capability according to another embodiment of the present disclosure;

[0038] Figure 17 An interaction diagram of a method for transmitting SL positioning capability according to an embodiment of the present disclosure;

[0039] Figure 18 An interaction diagram of a method for transmitting SL positioning capability according to another embodiment of the present disclosure;

[0040] Figure 19 A structure diagram of a communication apparatus according to another embodiment of the present disclosure;

[0041] Figure 20 A structure diagram of a communication apparatus according to another embodiment of the present disclosure;

[0042] Figure 21 A structure diagram of a communication apparatus according to another embodiment of the present disclosure;

[0043] Figure 22 A structure diagram of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0044] The exemplary embodiments will be described in detail herein below with reference to the drawings. In the following description, unless otherwise indicated, like numbers in the figures indicate similar or analogous elements and the description of the same number can be incorporated by reference among different figures. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present disclosure. Instead, they only describe apparatuses and methods consistent with some aspects of the embodiments of the present disclosure, as detailed in the appended claims.

[0045] The terminology used in the embodiments of the present disclosure is merely for the purpose of describing particular embodiments and is not intended to limit the embodiments of the present disclosure. As used in the embodiments of the present disclosure and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0046] It should be understood that although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish signals of the same type from each other. For example, first information may also be referred to as second information without departing from the scope of embodiments of this disclosure, and similarly, second information may also be referred to as first information. Depending on the context, the words “if” and “suppose” as used herein may be interpreted as “when”, “when”, or “in response to a determination”.

[0047] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0048] To facilitate understanding, the terminology used in this application will be introduced first.

[0049] 1. Sidelink (SL)

[0050] Links for direct communication between terminal devices.

[0051] 2. User to Network interface Universal (Uu) port

[0052] The wireless interface between the terminal device and the base station, where the terminal device is also called user equipment (UE).

[0053] 3. Sidelink positioning

[0054] Positioning based on the UE and its inter-UE sidelinks includes absolute positioning (SL), relative positioning (SL), and ranging. Absolute positioning determines the absolute coordinates of the UE. Relative positioning determines the coordinates of the UE relative to a reference point. Ranging determines the distance and / or angle of the UE relative to a reference point. Ranging typically involves only two UEs, but absolute and relative positioning may involve multiple UEs.

[0055] The SL, Uu, and Sidelink positioning mentioned above are examples described in this disclosure. This disclosure does not specifically limit these names, and other network elements that can achieve similar functions are also within the protection scope of this disclosure.

[0056] In a communication system, Uu interface-based positioning is referred to as Uu interface positioning, and positioning methods of Uu interface positioning include Time Difference Of Arrival (TDOA), Angle of Departure (AOD), Angle of Arrival (AOA), multi Round trip time (Multi-RTT), Assisted Global Navigation Satellite System (A-GNSS), Wireless Local Area Network (WLAN) positioning, Bluetooth positioning, sensor positioning, carrier phase positioning, Enhanced Cell identification (E-CID) positioning, and the like.

[0057] Positioning methods of SL positioning include SL-RTT, SL-TDOA, SL-AOA, SL carrier phase, and the like. Further, the positioning methods of SL positioning can also be combined with the positioning methods of Uu interface positioning to improve positioning accuracy. In addition, if it is necessary to obtain the absolute position of a UE, the absolute position of a reference UE can be obtained through Uu interface positioning, the relative position of a target UE and the reference UE can be obtained through relative positioning, and then the absolute position of the target UE can be calculated based on the absolute position of the reference UE and the relative position of the two.

[0058] Figure 1 An architecture diagram of SL-TDOA positioning is provided for embodiments of the present disclosure. As shown in the figure, a UE can determine the specific position of the UE relative to a Road Side Unit (RSU) by measuring the positioning reference signal (PRS) sent by the RSU through SL. Figure 1

[0059] If the positioning result is not converted into absolute position coordinates based on absolute position information of the RSU, such as Global Positioning System (GPS), the positioning result is relative positioning. Conversely, it is absolute positioning. The UE to be positioned is a target UE, and other UEs supporting positioning of the target UE are anchor UEs. If positioning only involves two UEs, they are each other's anchor UE.

[0060] ​There are different types of anchor UEs, such as RSU type anchor UEs, which belong to a kind of infrastructure and can provide positioning services by cooperating with other RSUs; such as ordinary UEs, which can also serve as anchor UEs, and it is difficult to assist other UEs to provide positioning services; in addition, some anchor UEs have GPS and other location information, which can assist other UEs in absolute positioning; other anchor UEs may not have GPS and other location information.

[0061] SL positioning can have network (base station / Location Management Function, LMF) participation or no network (base station / LMF) participation. For example, in the case of out of coverage of the UE, SL positioning has no network participation. But if the UE is in coverage, network participation is possible.

[0062] In the case of network device participation in SL positioning, because the positioning decision (such as positioning method determination, positioning anchor UE selection, positioning SL-PRS resource selection, and who to do positioning calculation) can be located at the UE (target UE or anchor UE or server UE) or LMF, the SL positioning capability of the UE needs to be sent to the decision maker for decision making. Therefore, how to determine which UE's capability needs to be sent to the LMF, who sends it to the LMF, and how to handle it if part of the UE participating in positioning is out of coverage becomes the focus of attention.

[0063] In order to better understand the SL positioning capability transmission method disclosed in the embodiments of the present disclosure, the communication system to which the embodiments of the present disclosure are applicable will be described first.

[0064] Please refer to Figure 2 , Figure 2 A schematic diagram of the architecture of a communication system provided by the embodiments of the present disclosure is shown. The communication system can include but is not limited to network devices and UEs. Optionally, Figure 2 The number and form of devices shown are used for example and do not constitute a limitation on the embodiments of the present disclosure, and in actual applications, one or more network devices or one or more UEs can be included. Optionally, Figure 2 The communication system shown takes one network device and one UE as an example.

[0065] It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems. For example, long term evolution (LTE) system, 5th generation (5G) mobile communication system, 5G new radio (NR) system, or other future new mobile communication systems, etc.

[0066] The UE in the embodiments of the present disclosure can be an entity for receiving or transmitting signals on the user side, such as a mobile phone. It can also be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. The UE can be a car, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, etc. The embodiments of the present disclosure do not limit the specific technology and specific device form of the UE.

[0067] The network device in the embodiments of the present disclosure can be a base station, a core network device, or an LMF. Optionally, the core network device can be a device deployed in the core network. The functions of the core network device mainly include providing user connection, managing users, and completing bearer for services, and providing an interface to external networks as a bearer network. For example, the core network device in the 5G NR system can include at least one of an access and mobility management function (AMF) network element, a user plane function (UPF) network element, a session management function (SMF) network element, a mobility management entity (MME), etc.

[0068] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. Those skilled in the art can know that, with the evolution of system architecture and the appearance of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

[0069] The SL positioning capability transmission method, apparatus, device and storage medium provided by the embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0070] It should be noted that, in the present disclosure, each step in any embodiment or example can be implemented as an independent embodiment without contradiction, and any combination between steps can be implemented, for example, a scheme after removing part of the steps in an embodiment or example can be implemented as an independent embodiment, and the order of the steps in an embodiment or example can be arbitrarily exchanged, in addition, the optional mode or optional example in an embodiment or example can be arbitrarily combined; in addition, any combination between embodiments or examples can be implemented, for example, part or all of the steps of different embodiments or examples can be combined, an embodiment or example can be combined with the optional mode or optional example of other embodiments or examples. As for the description mode of the present disclosure, such as “A or B”, “A and / or B”, “at least one of A and B”, “A in one case and B in another case”, “A in response to one case and B in response to another case” and the like, at least one of the following schemes can be included according to the case: A is performed regardless of B, that is, A in some embodiments; B is performed regardless of A, that is, B in some embodiments; A and B are selectively performed, that is, A and B are selected to be performed in some embodiments; A and B are both performed, that is, A and B in some embodiments. In addition, each element, each row or each column in the table involved in the present disclosure can be implemented as an independent embodiment, and any combination of any element, any row or any column can also be implemented as an independent embodiment.

[0071] Figure 3 A flowchart of a SL positioning capability transmission method provided by an embodiment of the present disclosure is shown in the figure, and the method is executed by a first terminal device. As shown in the figure, the SL positioning capability transmission method can include the following steps: Figure 3

[0072] Step 301: In the case that a network device participates in SL positioning between terminal devices, SL positioning capability information is sent to the network device.

[0073] Optionally, in an embodiment of the present disclosure, the network device can include a base station, an LMF. ​

[0074] Optionally, in an embodiment of the present disclosure, the SL positioning capability information comprises at least one of the following information:

[0075] SL positioning capability information of the first terminal device;

[0076] SL positioning capability information of the other second terminal device.

[0077] Optionally, in an embodiment of the present disclosure, the first terminal device is one of the following types:

[0078] a terminal device initiating SL positioning;

[0079] a target terminal device;

[0080] an anchor terminal device.

[0081] Optionally, in an embodiment of the present disclosure, for UE-initiated positioning, the first terminal device can be a terminal device initiating SL positioning, which can be a target terminal device or an anchor terminal device.

[0082] Optionally, in an embodiment of the present disclosure, for network device-initiated positioning, the first terminal device can be an anchor terminal device or a target terminal device.

[0083] Optionally, in an embodiment of the present disclosure, the second terminal device is one or more terminal devices having SL positioning capability and located in the periphery of the first terminal device.

[0084] Optionally, in an embodiment of the present disclosure, the periphery of the first terminal device can refer to the coverage range of the first terminal device.

[0085] Optionally, in an embodiment of the present disclosure, the second terminal device can be one or more terminal devices having SL positioning capability and located in the periphery of the first terminal device, but not in network coverage; or the second terminal device can be one or more terminal devices having SL positioning capability and located in the periphery of the first terminal device, and in network coverage but not in a connected state.

[0086] Optionally, in an embodiment of the present disclosure, the SL positioning capability information comprises at least one of the following information:

[0087] identification information of a terminal device to be reported with SL positioning capability information, wherein the terminal device to be reported with SL positioning capability information includes the first terminal device and / or the second terminal device;

[0088] SL positioning modes supported by the terminal device to be reported with SL positioning capability information;

[0089] SL positioning bandwidth supported by the terminal device to be reported SL positioning capability information.

[0090] Optionally, in the embodiment or example, the SL positioning method includes SL-RTT, SL-AOA, SL-AOD, SL-carrier phase, SL-TDOA.

[0091] Optionally, in the embodiment or example, the identification information of the terminal device includes at least one of the following identifications:

[0092] The identification of the source layer 2 (source layer 2 ID) of the terminal device;

[0093] The identification of the target layer 2 (target layer 2 ID) of the terminal device;

[0094] The international mobile equipment identity (IMEI) of the terminal device;

[0095] The international mobile subscriber identity (IMSI) of the terminal device;

[0096] The temporary terminal equipment identification number S-TMSI / TMSI of the terminal device;

[0097] The identification of the application layer (application layer ID) of the terminal device.

[0098] Optionally, in the embodiment or example, the identification information of the terminal device can be understood as the identification information of the first terminal device, or as the identification information of the second terminal device.

[0099] Optionally, in an embodiment of the present disclosure, if the terminal device directly communicates with the LMF, the terminal device does not need to provide its own identification information.

[0100] Optionally, the "SL positioning capability information" mentioned in the embodiment of the present disclosure is only a naming provided by the present disclosure, which can also be expressed as other words, and the present disclosure does not limit it.

[0101] Optionally, in the embodiment or example, the steps can be independent, arbitrarily combined or exchanged in order without contradiction, the optional modes or examples can be arbitrarily combined, and can be arbitrarily combined with other embodiments or examples.

[0102] To sum up, the SL positioning capability transmission method provided by the embodiments of the present disclosure includes the following steps.

[0103] Figure 4 A flowchart of a SL positioning capability transmission method provided by the embodiments of the present disclosure is shown in FIG. 4. The method is executed by a first terminal device. As shown in FIG. 4, the SL positioning capability transmission method can include the following steps: Figure 4

[0104] Step 401: In the case that a network device participates in SL positioning between terminal devices, SL positioning capability information is sent to the network device.

[0105] In one embodiment of the present disclosure, the description of step 401 can refer to the description of step 301, which is not limited in the embodiments of the present disclosure. The optional examples in the embodiments of the present disclosure can be combined arbitrarily, and the embodiments of the present disclosure can be combined with the steps of other embodiments, the optional examples in other embodiments, without contradiction.

[0106] Step 402: A candidate terminal device located in the periphery of the first terminal device and having SL positioning capability is determined.

[0107] Step 403: One or more terminal devices are selected from the candidate terminal devices as second terminal devices.

[0108] Optionally, in the present embodiment or embodiment, the candidate terminal device can refer to one or more terminal devices (target terminal device, anchor terminal device) selected from the terminal devices located in the periphery of the first terminal device and having SL positioning capability.

[0109] Optionally, in one embodiment of the present disclosure, the second terminal device is one or more terminal devices located in the periphery of the first terminal device and having SL positioning capability.

[0110] Optionally, in one embodiment of the present disclosure, the periphery of the first terminal device can refer to the coverage range of the first terminal device. Thus, the first terminal device can search other terminal devices in the coverage range to determine other terminal devices in the coverage range of the first terminal device. Further, the SL positioning capability of the other terminal devices in the coverage range of the first terminal device can be determined to obtain the candidate terminal devices. Further, the target terminal device and the anchor terminal device in the other terminal devices in the coverage range of the first terminal device can also be determined, and then the SL positioning capability of the target terminal device and the anchor terminal device is determined to obtain the candidate terminal devices.​

[0111] Optionally, in an embodiment of the present disclosure, the second terminal device can be one or more terminal devices located around the first terminal device and having SL positioning capability but not in network coverage; or the second terminal device can be one or more terminal devices located around the first terminal device and having SL positioning capability and in network coverage but not in a connected state.

[0112] In summary, in the SL positioning capability transmission method provided by the embodiments of the present disclosure, by providing an SL positioning capability interaction method in the case where the network device participates in the SL positioning between terminal devices, the SL positioning capability of the UE is sent to the decision maker for decision making in the case where the network device participates in the SL positioning.

[0113] Figure 5 A flowchart of an SL positioning capability transmission method provided by an embodiment of the present disclosure is shown in FIG. 5. The method is performed by a first terminal device. As shown in FIG. 5, the SL positioning capability transmission method can include the following steps: Figure 5

[0114] Step 501: In the case where a network device participates in SL positioning between terminal devices, SL positioning capability information is sent to the network device.

[0115] In an embodiment of the present disclosure, the description of step 501 can refer to the description of step 301, and the embodiments of the present disclosure are not limited herein. The optional examples in the embodiments of the present disclosure can be combined arbitrarily, and the embodiments of the present disclosure can be combined with the steps of other embodiments, the optional examples in other embodiments, without contradiction.

[0116] Step 502: The SL positioning capability information of a second terminal device is obtained and sent to the network device.

[0117] Optionally, in the present embodiment or embodiment, when the first terminal device obtains the SL positioning capability information of one or more second terminal devices, the SL positioning capability information of the one or more second terminal devices can be sent to the network device in one message, or can be sent to the network device through multiple messages respectively.

[0118] In summary, in the SL positioning capability transmission method provided by the embodiments of the present disclosure, by providing an SL positioning capability interaction method in the case where the network device participates in the SL positioning between terminal devices, the SL positioning capability of the UE is sent to the decision maker for decision making in the case where the network device participates in the SL positioning.

[0119] Figure 6 ​A flowchart of a SL positioning capability transmission method provided by an embodiment of the present disclosure is shown in FIG. 6, which is executed by a first terminal device. As shown in FIG. 6, the SL positioning capability transmission method can include the following steps: Figure 6

[0120] Step 601: In a case where a network device participates in SL positioning between terminal devices, SL positioning capability information is sent to the network device.

[0121] In one embodiment of the present disclosure, the description of step 601 can refer to the description of step 301, which is not limited in the present embodiment. The optional examples in the present embodiment can be combined arbitrarily, and the present embodiment can be combined with the steps of other embodiments, the optional examples in other embodiments, without contradiction.

[0122] Step 602: At the same time of sending the SL positioning capability information to the network device, indication information is sent to the network device, wherein the indication information is used to indicate the description information of the terminal device to be reported SL positioning capability information.

[0123] Optionally, in the present embodiment or embodiment, the terminal device to be reported SL positioning capability information includes one of the following types:

[0124] The first terminal device discovers a terminal device located in the periphery and having SL positioning capability.

[0125] The anchor terminal device determined by the first terminal device.

[0126] The target terminal device determined by the first terminal device.

[0127] Optionally, in the present embodiment or embodiment, the indication information is used to indicate at least one of the following description information:

[0128] Whether the terminal device to be reported SL positioning capability information is in the network coverage range;

[0129] The current state of the terminal device to be reported SL positioning capability information;

[0130] The identification information of the terminal device to be reported SL positioning capability information;

[0131] The terminal role supported by the terminal device to be reported SL positioning capability information;

[0132] The SL signal quality of the terminal device to be reported SL positioning capability information.

[0133] Optionally, in the present embodiment or embodiment, the current state of the terminal device includes the connected state, the inactive state, and the idle state. ​

[0134] Optionally, in the embodiment or example, the terminal role includes an anchor terminal device, a target terminal device, a service terminal device, etc.

[0135] Optionally, in the embodiment or example, when the terminal device directly communicates with the LMF, the terminal device does not need to provide its own identification information.

[0136] Optionally, in the embodiment or example, when the indication information is used to indicate the description information of the terminal device to be reported SL positioning capability information, the indication information can be used to indicate the description information of one or more terminal devices to be reported SL positioning capability information.

[0137] In summary, the SL positioning capability transmission method provided by the embodiment of the present disclosure includes the following steps:

[0138] Figure 7 A flowchart of a SL positioning capability transmission method provided by the embodiment of the present disclosure, the method is executed by a first terminal device, as shown in Figure 7 The SL positioning capability transmission method can include the following steps:

[0139] Step 701, in the case where the network device participates in the SL positioning between terminal devices, the SL positioning capability information is sent to the network device;

[0140] In one embodiment of the present disclosure, the description of step 701 can refer to the description of step 301, and the optional examples in the embodiment of the present disclosure are not limited herein. The optional examples in the embodiment of the present disclosure can be arbitrarily combined, and the embodiment of the present disclosure can be combined with the steps of other embodiments, the optional examples in other embodiments, without contradiction.

[0141] Step 702, a first positioning capability request sent by the network device is received, and the first positioning capability request is used to request the SL positioning capability information of one or more terminal devices.

[0142] Optionally, in the embodiment or example, when the first positioning capability request is used to request the SL positioning capability information of one or more terminal devices, the SL positioning capability information of the one or more terminal devices requested can include the SL positioning capability information of the first terminal device, or can not include the SL positioning capability information of the first terminal device.

[0143] Optionally, in the embodiment or example, when the first positioning capability request does not include the SL positioning capability information of the first terminal device, the first terminal device can report the SL positioning capability information of the first terminal device by default.

[0144] Optionally, in the embodiment or example, the first positioning capability request includes the identification information of the requested terminal device, that is, the second positioning capability request includes the identification information of the terminal device not in the network coverage. For the specific description of the identification information of the requested terminal device, please refer to the related content in the above-mentioned example, which will not be repeated here.

[0145] Optionally, in the embodiment or example, after the first terminal device receives the first positioning capability request sent by the network device, the first terminal device can feed back the SL positioning capability information of the requested terminal device to the network device.

[0146] Optionally, in the embodiment or example, before the first terminal device feeds back the SL positioning capability information of the requested terminal device to the network device, the first terminal device can obtain the SL positioning capability information of the requested terminal device from the requested terminal device.

[0147] Optionally, in the embodiment or example, if the first terminal device does not obtain the SL positioning capability information of the terminal device requested by the network device, the first terminal device sends the network device with the unobtainable indication information. The unobtainable indication information is used to indicate that the SL positioning capability information of the requested terminal device cannot be obtained.

[0148] In summary, the SL positioning capability transmission method provided by the embodiment of the present disclosure includes a SL positioning capability interaction method in the case that the network device participates in the SL positioning between terminal devices, so as to send the SL positioning capability of the UE to the decision maker for decision making in the case that the network device participates in the SL positioning.

[0149] Figure 8 A flowchart of a SL positioning capability transmission method provided by the embodiment of the present disclosure is shown in FIG. 8. The method is executed by a first terminal device, and the SL positioning capability transmission method can include the following steps: Figure 8

[0150] Step 801: In the case that the network device participates in the SL positioning between terminal devices, SL positioning capability information is sent to the network device.

[0151] ​Among them, in one embodiment of the present disclosure, the introduction about step 801 can refer to the description of step 301, and the optional examples in the embodiment of the present disclosure can be combined arbitrarily, and the steps of other embodiments and the optional examples in other embodiments can be combined without contradiction.

[0152] Step 802, receiving the second positioning capability request of the terminal device not in network coverage sent by the network device, the second positioning capability request is used to request the first terminal device to provide the SL positioning capability information of the terminal device not in network coverage.

[0153] Optionally, in the present embodiment or embodiment, the identification information of the requested terminal device is included in the second positioning capability request, that is, the identification information of the terminal device not in network coverage is included in the second positioning capability request. Wherein, the specific introduction of the identification information of the requested terminal device can refer to the description of the related content in the above embodiment, which will not be repeated here.

[0154] Optionally, in the present embodiment or embodiment, after the first terminal device receives the second positioning capability request of the terminal device not in network coverage sent by the network device, the first terminal device can feed back the SL positioning capability information of the requested terminal device not in network coverage to the network device.

[0155] Optionally, in the present embodiment or embodiment, if the first terminal device does not obtain the SL positioning capability information of the terminal device not in network coverage requested by the network device, the first terminal device sends the network device with the indication information that cannot be obtained. The indication information that cannot be obtained is used to indicate that the SL positioning capability information of the terminal device not in network coverage requested cannot be obtained.

[0156] In summary, the SL positioning capability transmission method provided by the embodiment of the present disclosure, by providing a SL positioning capability interaction method in the case that the network device participates in the SL positioning between terminal devices, so as to send the SL positioning capability of the UE to the decision maker in the case that the network device participates in the SL positioning, so that the decision maker makes a decision.

[0157] Figure 9 A flowchart of a SL positioning capability transmission method provided by the embodiment of the present disclosure, the method is executed by a first terminal device, as shown in Figure 9 The SL positioning capability transmission method can include the following steps:

[0158] Step 901, in the case that the network device participates in the SL positioning between terminal devices, when the first terminal device is in network coverage, directly sending the SL positioning capability information to the network device.

[0159] Among them, in one embodiment of the present disclosure, the introduction about step 901 can refer to the description of step 301, and the embodiments of the present disclosure are not limited herein. The optional examples in the embodiments of the present disclosure can be combined arbitrarily, and the embodiments of the present disclosure can be combined with the steps of other embodiments, the optional examples in other embodiments, without contradiction.

[0160] In summary, the SL positioning capability transmission method provided by the embodiments of the present disclosure includes an SL positioning capability interaction method when a network device participates in SL positioning between terminal devices, so as to send the SL positioning capability of the UE to the decision maker for decision making when the network device participates in SL positioning.

[0161] Figure 10 A flowchart of an SL positioning capability transmission method provided by an embodiment of the present disclosure is shown in the figure, and the method is executed by a first terminal device. As shown in the figure, the SL positioning capability transmission method can include the following steps: Figure 10

[0162] Step 1001: In the case where a network device participates in SL positioning between terminal devices, when the first terminal device is not in network coverage, the SL positioning capability information is sent to the network device through a third terminal device.

[0163] Among them, in one embodiment of the present disclosure, the introduction about step 1001 can refer to the description of step 301, and the embodiments of the present disclosure are not limited herein. The optional examples in the embodiments of the present disclosure can be combined arbitrarily, and the embodiments of the present disclosure can be combined with the steps of other embodiments, the optional examples in other embodiments, without contradiction.

[0164] Optionally, in the present embodiment or embodiment, when the first terminal device sends the SL positioning capability information to the network device through the third terminal device, the first terminal device can select a terminal device in network coverage from the terminal devices discovered by the first terminal device and supporting SL positioning as the third terminal device. Then, the first terminal device can send the SL positioning capability information to the third terminal device, and the third terminal device forwards the SL positioning capability information to the network device.

[0165] Optionally, in the present embodiment or embodiment, when the first terminal device sends the SL positioning capability information to the third terminal device, the SL positioning capability information of one or more terminal devices can be sent to the third terminal device.

[0166] Optionally, in the present embodiment or embodiment, when the third terminal device sends the SL positioning capability information to the network device, the SL positioning capability information of the third terminal device can be sent to the network device at the same time. ​

[0167] Optionally, in the embodiment or example, the first terminal device can also send the first forwarding indication information to the third terminal device when sending the SL positioning capability information to the third terminal device, and the first forwarding indication information is used to instruct the third terminal device to forward the SL positioning capability information to the network device.

[0168] Optionally, in the embodiment or example, the first terminal device can also send the second forwarding indication information to the third terminal device when sending the SL positioning capability information to the third terminal device, and the second forwarding indication information is used to instruct the third terminal device whether to forward the SL positioning capability information to the network device.

[0169] Optionally, in the embodiment or example, the first terminal device can send the information needed to be provided to the network device to the third terminal device in an explicit indication manner when sending the SL positioning capability information to the third terminal device. The information needed to be provided to the network device can also be sent to the third terminal device in an implicit indication manner.

[0170] In some implementations, the first terminal device can also encapsulate the information needed to be provided to the network device in a special container, for example, a Lightweight Presentation Protocol (LPP) message can be encapsulated in the container, and at this time, the third terminal device can directly send the information in the container to the network device.

[0171] In summary, in the SL positioning capability transmission method provided by the embodiment of the present disclosure, by providing an SL positioning capability interaction method in the case that the network device participates in the SL positioning between terminal devices, the UE SL positioning capability is sent to the decision maker for decision making in the case that the network device participates in the SL positioning. At the same time, by forwarding the SL positioning capability information to the network device through the third terminal device, the case that the network device cannot obtain the SL positioning capability information due to the first terminal device not being in network coverage can be reduced.

[0172] Figure 11 A flowchart of an SL positioning capability transmission method provided by the embodiment of the present disclosure is shown in the figure, and the method is executed by a network device. As shown in the figure, the SL positioning capability transmission method can include the following steps: Figure 11

[0173] Step 1101, in the case that the network device participates in the SL positioning between terminal devices, receiving the SL positioning capability information sent by the first terminal device.

[0174] ​Among them, in one embodiment of the present disclosure, the introduction about step 1101 can refer to the description of step 301, and the embodiments of the present disclosure are not limited herein. The optional examples in the embodiments of the present disclosure can be combined arbitrarily, and the embodiments of the present disclosure can be combined with the steps of other embodiments, the optional examples in other embodiments, without contradiction.

[0175] In summary, among the SL positioning capability transmission methods provided by the embodiments of the present disclosure, by providing an SL positioning capability interaction method in the case that the network device participates in the SL positioning between terminal devices, the SL positioning capability of the UE is sent to the decision maker for decision making in the case that the network device participates in the SL positioning.

[0176] Figure 12 For a flowchart of an SL positioning capability transmission method provided by an embodiment of the present disclosure, the method is executed by a network device, as shown in Figure 12 The SL positioning capability transmission method can include the following steps:

[0177] Step 1201, in the case that the network device participates in the SL positioning between terminal devices, receiving the SL positioning capability information sent by the first terminal device;

[0178] Step 1202, while receiving the SL positioning capability information sent by the terminal device, receiving the indication information sent by the terminal device, wherein the indication information is used to indicate the description information of the terminal device to be reported SL positioning capability information.

[0179] Among them, in one embodiment of the present disclosure, the introduction about steps 1201-1202 can refer to the description of steps 601-602, and the embodiments of the present disclosure are not limited herein. The optional examples in the embodiments of the present disclosure can be combined arbitrarily, and the embodiments of the present disclosure can be combined with the steps of other embodiments, the optional examples in other embodiments, without contradiction.

[0180] In summary, among the SL positioning capability transmission methods provided by the embodiments of the present disclosure, by providing an SL positioning capability interaction method in the case that the network device participates in the SL positioning between terminal devices, the SL positioning capability of the UE is sent to the decision maker for decision making in the case that the network device participates in the SL positioning.

[0181] Figure 13 For a flowchart of an SL positioning capability transmission method provided by an embodiment of the present disclosure, the method is executed by a network device, as shown in Figure 13

[0182] ​In a case where the network device participates in SL positioning between terminal devices, SL positioning capability information sent by a first terminal device is received, step 1301.

[0183] A first positioning capability request is sent to the terminal devices, step 1302. The first positioning capability request is used to request SL positioning capability information of one or more terminal devices.

[0184] In an embodiment of the present disclosure, the description of steps 1301-1302 can refer to the description of steps 701-702, and the embodiments of the present disclosure are not limited herein. The optional examples in the embodiments of the present disclosure can be combined arbitrarily, and the embodiments of the present disclosure can be combined with the steps of other embodiments and the optional examples in other embodiments without contradiction.

[0185] Optionally, in the present embodiment or embodiment, in a case where the network device has received SL positioning capability information of one or more terminal devices sent by the first terminal device, if the network device still needs to obtain SL positioning capability information of other terminal devices in addition to the received SL positioning capability information, the network device can continue to send the first positioning capability request to the terminal devices. At this time, the one or more terminal devices requested in the first positioning capability request are terminal devices in the candidate terminal devices provided by the first terminal device to the network device.

[0186] Optionally, in the present embodiment or embodiment, if the first terminal device does not obtain the SL positioning capability information of the terminal device requested by the network device, the network device can receive the unobtainable indication information sent by the terminal device.

[0187] In summary, the SL positioning capability transmission method provided by the embodiments of the present disclosure includes a SL positioning capability interaction method in a case where the network device participates in SL positioning between terminal devices, so as to send the SL positioning capability of the UE to the decision maker for decision making in a case where the network device participates in SL positioning.

[0188] Figure 14 A flowchart of a SL positioning capability transmission method provided by the embodiments of the present disclosure is shown in FIG. 14. The method is performed by a network device, as shown in FIG. 14. Figure 14

[0189] In a case where the network device participates in SL positioning between terminal devices, SL positioning capability information sent by a first terminal device is received, step 1401.

[0190] A second positioning capability request is sent to a terminal device not in network coverage, step 1402. The second positioning capability request is used to request the first terminal device to provide SL positioning capability information of the terminal device not in network coverage.​

[0191] In an embodiment of the present disclosure, the description of steps 1401-1402 can refer to the description of steps 801-802, and the embodiments of the present disclosure are not limited herein. The optional examples in the embodiments of the present disclosure can be combined arbitrarily, and the embodiments of the present disclosure can be combined with the steps of other embodiments, the optional examples in other embodiments, without contradiction.

[0192] Optionally, in the present embodiment or embodiment, if the first terminal device does not obtain the SL positioning capability information of the terminal device requested by the network device, the network device can receive the indication information that the terminal device cannot obtain.

[0193] In summary, the SL positioning capability transmission method provided by the embodiments of the present disclosure provides an SL positioning capability interaction method in the case where the network device participates in the SL positioning between terminal devices, so as to send the SL positioning capability of the UE to the decision maker for decision making in the case where the network device participates in the SL positioning.

[0194] Figure 15 A flowchart of an SL positioning capability transmission method provided by the embodiments of the present disclosure is shown in FIG. 15. The method is performed by a network device, as shown in FIG. 15. Figure 15

[0195] Step 1501: In the case where the network device participates in the SL positioning between terminal devices, receiving SL positioning capability information sent by a first terminal device;

[0196] In an embodiment of the present disclosure, the description of step 1501 can refer to the description of step 301, and the embodiments of the present disclosure are not limited herein. The optional examples in the embodiments of the present disclosure can be combined arbitrarily, and the embodiments of the present disclosure can be combined with the steps of other embodiments, the optional examples in other embodiments, without contradiction.

[0197] Step 1502: determining a terminal device in network coverage, and directly sending a positioning capability request to the terminal device in network coverage; or

[0198] determining a terminal device in network coverage and in a connected state or an inactive state, and directly sending a positioning capability request to the terminal device in network coverage and in a connected state or an inactive state.

[0199] In summary, the SL positioning capability transmission method provided by the embodiments of the present disclosure provides an SL positioning capability interaction method in the case where the network device participates in the SL positioning between terminal devices, so as to send the SL positioning capability of the UE to the decision maker for decision making in the case where the network device participates in the SL positioning. ​

[0200] Figure 16 A flowchart of a SL positioning capability transmission method provided by an embodiment of the present disclosure is shown in FIG. 17. The method is performed by a network device, and the method comprises the following steps: Figure 16

[0201] Step 1601: In a case where the network device participates in SL positioning between terminal devices, SL positioning capability information sent by a first terminal device is received.

[0202] Step 1602: In a case where the first terminal device is not in network coverage, SL positioning capability information forwarded by a third terminal device is received.

[0203] In one embodiment of the present disclosure, the description of steps 1601-1602 can refer to the description of step 1001, and the embodiments of the present disclosure are not limited herein. The optional examples in the embodiments of the present disclosure can be combined arbitrarily, and the embodiments of the present disclosure can be combined with the steps of other embodiments and the optional examples in other embodiments without contradiction.

[0204] In summary, in the SL positioning capability transmission method provided by the embodiments of the present disclosure, a SL positioning capability interaction method is provided in a case where the network device participates in SL positioning between terminal devices, so that the SL positioning capability of the UE is sent to the decision maker for decision making in the case where the network device participates in SL positioning. At the same time, by receiving the SL positioning capability information forwarded by the third terminal device, the case where the network device cannot obtain the SL positioning capability information due to the first terminal device not being in network coverage can be reduced.

[0205] Figure 17 An interaction diagram of a SL positioning capability transmission method provided by an embodiment of the present disclosure is shown in FIG. 17. The SL positioning capability transmission method comprises the following steps: Figure 17

[0206] Step 1701: In a case where the first terminal device is in network coverage, the network device sends a positioning capability request to the first terminal device.

[0207] Optionally, in the present embodiment or embodiment, the positioning capability request can be a first positioning capability request or a second positioning capability request. For specific description of the first positioning capability request or the second positioning capability request, please refer to the description of the related content in the above embodiments, which will not be repeated here.

[0208] Step 1702: The first terminal device sends SL positioning capability information to the network device.

[0209] ​​Among them, in one embodiment of the present disclosure, the introduction about step 1702 can refer to the description of step 901, and the embodiments of the present disclosure are not limited herein. The optional examples in the embodiments of the present disclosure can be combined arbitrarily, and the embodiments of the present disclosure can be combined with the steps of other embodiments, the optional examples in other embodiments, without contradiction.

[0210] Figure 18 The interaction schematic diagram of the SL positioning capability transmission method provided by the embodiments of the present disclosure is shown in Figure 18 The SL positioning capability transmission method specifically includes the following steps:

[0211] Step 1801, when the first terminal device is not in network coverage, the network device sends a positioning capability request to the third terminal device;

[0212] Optionally, in the present embodiment or embodiment, the positioning capability request can be a first positioning capability request or a second positioning capability request. Wherein, the specific introduction of the first positioning capability request or the second positioning capability request can refer to the description of the related content in the above embodiments, which will not be repeated here.

[0213] Step 1802, the third terminal device sends a positioning capability request to the first terminal device;

[0214] Optionally, in the present embodiment or embodiment, the third terminal device sending a positioning capability request to the first terminal device can mean that the network device sends a positioning capability request to the third terminal device, that is, the third terminal device forwards the positioning capability request sent by the network device to the first terminal device.

[0215] Step 1803, the first terminal device sends SL positioning capability information to the third terminal device;

[0216] Step 1804, the third terminal device sends SL positioning capability information to the network device.

[0217] Among them, in one embodiment of the present disclosure, the introduction about steps 1803-1804 can refer to the description of step 1001, and the embodiments of the present disclosure are not limited herein. The optional examples in the embodiments of the present disclosure can be combined arbitrarily, and the embodiments of the present disclosure can be combined with the steps of other embodiments, the optional examples in other embodiments, without contradiction.

[0218] Figure 19 The structure schematic diagram of a communication device provided by the embodiments of the present disclosure is shown in Figure 19 The device can include:

[0219] The transceiver module is configured to send SL positioning capability information to the network device in the case that the network device participates in SL positioning between terminal devices.

[0220] In conclusion, the communication device provided in the embodiments of the present disclosure provides a method for interacting SL positioning capability in the case that a network device participates in SL positioning between terminal devices, so as to send the SL positioning capability of the UE to the decision maker for decision making in the case that the network device participates in SL positioning.

[0221] Optionally, in an embodiment of the present disclosure, the first terminal device is one of the following types:

[0222] a terminal device initiating SL positioning;

[0223] a target terminal device;

[0224] an anchor terminal device.

[0225] Optionally, in an embodiment of the present disclosure, the SL positioning capability information includes at least one of the following information:

[0226] SL positioning capability information of the first terminal device;

[0227] SL positioning capability information of the other second terminal device.

[0228] Optionally, in an embodiment of the present disclosure, the SL positioning capability information includes at least one of the following information:

[0229] identification information of the terminal device to be reported with SL positioning capability information, wherein the terminal device to be reported with SL positioning capability information includes the first terminal device and / or the second terminal device;

[0230] SL positioning mode supported by the terminal device to be reported with SL positioning capability information;

[0231] SL positioning bandwidth supported by the terminal device to be reported with SL positioning capability information.

[0232] Optionally, in an embodiment of the present disclosure, the second terminal device is one or more terminal devices located around the first terminal device and having SL positioning capability.

[0233] Optionally, in an embodiment of the present disclosure, the second terminal device is one or more terminal devices located around the first terminal device and having SL positioning capability, but not in network coverage; or,

[0234] the second terminal device is one or more terminal devices located around the first terminal device and having SL positioning capability, and in network coverage but not in a connected state.

[0235] Optionally, in an embodiment of the present disclosure, the apparatus is further configured to:

[0236] determining a candidate terminal device located in the periphery of the first terminal device and having SL positioning capability;

[0237] selecting one or more terminal devices from the candidate terminal devices as the second terminal device.

[0238] Optionally, in an embodiment of the present disclosure, the apparatus is further configured to:

[0239] obtain SL positioning capability information of the second terminal device and send the SL positioning capability information to the network device.

[0240] Optionally, in an embodiment of the present disclosure, the apparatus is further configured to:

[0241] send, to the network device, indication information while sending the SL positioning capability information to the network device, wherein the indication information is used to indicate description information of the terminal device to be reported with the SL positioning capability information.

[0242] Optionally, in an embodiment of the present disclosure, the indication information is used to indicate at least one of the following description information:

[0243] whether the terminal device to be reported with the SL positioning capability information is in a network coverage range;

[0244] a current state of the terminal device to be reported with the SL positioning capability information;

[0245] identification information of the terminal device to be reported with the SL positioning capability information;

[0246] a terminal role supported by the terminal device to be reported with the SL positioning capability information;

[0247] SL signal quality of the terminal device to be reported with the SL positioning capability information.

[0248] Optionally, in an embodiment of the present disclosure, the terminal device to be reported with the SL positioning capability information includes one of the following types:

[0249] the first terminal device discovers a terminal device located in the periphery and having SL positioning capability;

[0250] an anchor terminal device determined by the first terminal device;

[0251] a target terminal device determined by the first terminal device.

[0252] Optionally, in an embodiment of the present disclosure, the identification information of the terminal device includes at least one of the following identifications:

[0253] an identification of a source Layer 2 of the terminal device;

[0254] an identity of a target layer 2 of the terminal device;

[0255] an international mobile equipment identity (IMEI) of the terminal device;

[0256] an international mobile subscriber identity (IMSI) of the terminal device;

[0257] a temporary terminal equipment identity (S-TMSI / TMSI) of the terminal device;

[0258] an identity of an application layer of the terminal device.

[0259] Optionally, in an embodiment of the present disclosure, the apparatus is further configured to:

[0260] receive a first positioning capability request sent by the network device, the first positioning capability request being used to request SL positioning capability information of one or more terminal devices.

[0261] Optionally, in an embodiment of the present disclosure, the apparatus is further configured to:

[0262] receive a second positioning capability request sent by the network device for a terminal device not in network coverage, the second positioning capability request being used to request the first terminal device to provide SL positioning capability information of the terminal device not in network coverage.

[0263] Optionally, in an embodiment of the present disclosure, the identity information of the requested terminal device is included in the positioning capability request.

[0264] Optionally, in an embodiment of the present disclosure, the apparatus is further configured to:

[0265] if the first terminal device fails to acquire the SL positioning capability information of the terminal device requested by the network device, send, to the network device, an indication that acquisition is impossible.

[0266] Optionally, in an embodiment of the present disclosure, the apparatus is further configured to:

[0267] when the first terminal device is in network coverage, directly send, to the network device, the SL positioning capability information; or

[0268] when the first terminal device is not in network coverage, send, to the network device, the SL positioning capability information through a third terminal device.

[0269] Optionally, in an embodiment of the present disclosure, when the apparatus is configured to send, to the network device, the SL positioning capability information through the third terminal device, the apparatus is specifically configured to:

[0270] From the terminal devices surrounding the first terminal device and supporting SL positioning, a terminal device in network coverage is selected as a third terminal device;

[0271] The SL positioning capability information is sent to the third terminal device, and the third terminal device forwards the SL positioning capability information to the network device.

[0272] Optionally, in an embodiment of the present disclosure, the apparatus is further configured to:

[0273] The first forwarding indication information is sent to the third terminal device at the same time as the SL positioning capability information, and the first forwarding indication information is used to instruct the third terminal device to forward the SL positioning capability information to the network device; or

[0274] The second forwarding indication information is sent to the third terminal device at the same time as the SL positioning capability information, and the second forwarding indication information is used to instruct the third terminal device whether to forward the SL positioning capability information to the network device.

[0275] Figure 20 A structural schematic diagram of a communication apparatus provided by an embodiment of the present disclosure is shown in FIG. 1. Figure 20 As shown in FIG. 1, the apparatus can include:

[0276] The transceiver is configured to receive the SL positioning capability information sent by the first terminal device in the case that the network device participates in SL positioning between terminal devices.

[0277] In summary, in the communication apparatus provided by the embodiment of the present disclosure, a method for SL positioning capability interaction in the case that the network device participates in SL positioning between terminal devices is provided, so as to send the SL positioning capability of the UE to the decision maker in the case that the network device participates in SL positioning, for the decision maker to make a decision.

[0278] Optionally, in an embodiment of the present disclosure, the first terminal device is one of the following types:

[0279] The terminal device that initiates SL positioning;

[0280] The target terminal device;

[0281] The anchor terminal device.

[0282] Optionally, in an embodiment of the present disclosure, the SL positioning capability information includes at least one of the following information:

[0283] The SL positioning capability information of the first terminal device;

[0284] The SL positioning capability information of the other second terminal device.

[0285] Optionally, in an embodiment of the present disclosure, the SL positioning capability information comprises at least one of the following information:

[0286] identification information of the terminal device to be reported with the SL positioning capability information, wherein the terminal device to be reported with the SL positioning capability information comprises the first terminal device and / or the second terminal device;

[0287] SL positioning mode supported by the terminal device to be reported with the SL positioning capability information;

[0288] SL positioning bandwidth supported by the terminal device to be reported with the SL positioning capability information.

[0289] Optionally, in an embodiment of the present disclosure, the second terminal device is one or more terminal devices located around the first terminal device and having SL positioning capability.

[0290] Optionally, in an embodiment of the present disclosure, the second terminal device is one or more terminal devices located around the first terminal device and having SL positioning capability, but not in network coverage; or,

[0291] the second terminal device is one or more terminal devices located around the first terminal device and having SL positioning capability, although in network coverage but not in a connected state.

[0292] Optionally, in an embodiment of the present disclosure, the apparatus is further configured to:

[0293] receive, at the same time as receiving the SL positioning capability information sent by the terminal device, indication information sent by the terminal device, wherein the indication information is used to indicate description information of the terminal device to be reported with the SL positioning capability information.

[0294] Optionally, in an embodiment of the present disclosure, the indication information is used to indicate at least one of the following description information:

[0295] whether the terminal device to be reported with the SL positioning capability information is in network coverage;

[0296] a current state of the terminal device to be reported with the SL positioning capability information;

[0297] identification information of the terminal device to be reported with the SL positioning capability information;

[0298] a terminal role supported by the terminal device to be reported with the SL positioning capability information;

[0299] SL signal quality of the terminal device to be reported with the SL positioning capability information.

[0300] Optionally, in an embodiment of the present disclosure, the terminal device to be reported SL positioning capability information includes one of the following types:

[0301] The first terminal device discovers a terminal device located in the periphery and having SL positioning capability;

[0302] The anchor terminal device determined by the first terminal device;

[0303] The target terminal device determined by the first terminal device.

[0304] Optionally, in an embodiment of the present disclosure, the identification information of the terminal device includes at least one of the following identifications:

[0305] The identification of the source layer 2 of the terminal device;

[0306] The identification of the target layer 2 of the terminal device;

[0307] The international mobile equipment identity (IMEI) of the terminal device;

[0308] The international mobile subscriber identity (IMSI) of the terminal device;

[0309] The temporary terminal equipment identity (S-TMSI / TMSI) of the terminal device;

[0310] The identification of the application layer of the terminal device.

[0311] Optionally, in an embodiment of the present disclosure, the apparatus is further configured to:

[0312] Send a first positioning capability request to the terminal device, the first positioning capability request being used to request SL positioning capability information of one or more terminal devices.

[0313] Optionally, in an embodiment of the present disclosure, the apparatus is further configured to:

[0314] Send a second positioning capability request to the terminal device, the second positioning capability request being used to request the first terminal device to provide SL positioning capability information of the terminal device not in network coverage.

[0315] Optionally, in an embodiment of the present disclosure, the apparatus is further configured to:

[0316] Determine the terminal device in network coverage, and directly send a positioning capability request to the terminal device in network coverage; or,

[0317] Determine the terminal device in network coverage and in a connected state or an inactive state, and directly send a positioning capability request to the terminal device in network coverage and in a connected state or an inactive state.

[0318] Optionally, in an embodiment of the present disclosure, the requested terminal device identification information is included in the positioning capability request.

[0319] Optionally, in an embodiment of the present disclosure, the apparatus is further configured to:

[0320] If the first terminal device fails to obtain the SL positioning capability information of the terminal device requested by the network device, the apparatus receives the indication information that the terminal device fails to obtain.

[0321] Optionally, in an embodiment of the present disclosure, the apparatus is further configured to:

[0322] When the first terminal device is not in network coverage, the apparatus receives the SL positioning capability information forwarded by the third terminal device.

[0323] Please refer to Figure 21 , Figure 21 FIG. 10 is a structural schematic diagram of a communication apparatus 2100 provided by an embodiment of the present disclosure. The communication apparatus 2100 can be a network device, a terminal device, a chip, a chip system, or a processor supporting the network device to implement the method described above, or a chip, a chip system, or a processor supporting the terminal device to implement the method described above. The apparatus can be used to implement the method described in the above method embodiments, and specific descriptions can be made by referring to the descriptions in the above method embodiments.

[0324] The communication apparatus 2100 can include one or more processors 2101. The processor 2101 can be a general-purpose processor or a special-purpose processor, etc. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication apparatus (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process data of the computer program.

[0325] Optionally, the communication apparatus 2100 can further include one or more memories 2102, which can have a computer program 2104 stored thereon. The processor 2101 executes the computer program 2104, so that the communication apparatus 2100 performs the method described in the above method embodiments. Optionally, the memory 2102 can also store data. The communication apparatus 2100 and the memory 2102 can be separately arranged or integrated together.

[0326] Optionally, the communication apparatus 2100 can further include a transceiver 2105, an antenna 2106. The transceiver 2105 can be referred to as a transceiving unit, a transceiver, or a transceiving circuit, etc., for implementing the transceiving function. The transceiver 2105 can include a receiver and a transmitter. The receiver can be referred to as a receiver or a receiving circuit, etc., for implementing the receiving function; the transmitter can be referred to as a transmitter or a transmitting circuit, etc., for implementing the transmitting function.

[0327] Optionally, the communication apparatus 2100 can further include one or more interface circuits 2106. The interface circuit 2106 is used to receive code instructions and transmit to the processor 2101. The processor 2101 runs the code instructions to make the communication apparatus 2100 perform the methods described in the above method embodiments.

[0328] In an implementation manner, the processor 2101 can include a transceiver for implementing the receiving and transmitting functions. For example, the transceiver can be a transceiving circuit, or an interface, or an interface circuit. The transceiving circuit, the interface, or the interface circuit for implementing the receiving and transmitting functions can be separate or integrated together. The above transceiving circuit, interface, or interface circuit can be used for reading and writing of code / data, or the above transceiving circuit, interface, or interface circuit can be used for transmission or transfer of signals.

[0329] In an implementation manner, the processor 2101 can store a computer program 2103. The computer program 2103 runs on the processor 2101, and can make the communication apparatus 2100 perform the methods described in the above method embodiments. The computer program 2103 can be fixed in the processor 2101. In this case, the processor 2101 can be implemented by hardware.

[0330] In an implementation, the communication device 2100 can include circuitry that can implement the functions of transmitting or receiving or communicating in the foregoing method embodiments. The processor and transceiver described in the present application can be implemented on an integrated circuit (IC), an analog IC, a radio frequency integrated circuit (RFIC), a mixed-signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), positive channel metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0331] The communication device described in the above embodiments can be a network device or a terminal device, but the scope of the communication device described in the present application is not limited thereto, and the structure of the communication device can not be limited by Figure 21 The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be:

[0332] (1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem;

[0333] (2) a set of one or more ICs, optionally including storage components for storing data, computer programs, etc.

[0334] (3) an ASIC, such as a modem;

[0335] (4) a module that can be embedded in other devices;

[0336] (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a car-mounted device, a network device, a cloud device, an artificial intelligence device, etc.

[0337] (6) and others.

[0338] For the case that the communication device can be a chip or a chip system, reference can be made to Figure 22 a structural diagram of the chip is shown. Figure 22 The chip shown includes a processor 2201 and an interface 2202. Optionally, the number of the processor 2201 can be one or more, and the number of the interface 2202 can be multiple.

[0339] Optionally, the chip further includes a memory 2203, which is used to store necessary computer programs and data.

[0340] Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. Whether the function is implemented by hardware or software depends on the specific application and design requirements of the whole system. Those skilled in the art can use various methods to implement the functions for each specific application, but such implementation should not be understood as beyond the scope of protection of the embodiments of the present application.

[0341] The present application also provides a readable storage medium having instructions stored thereon, which, when executed by a computer, implement the functions of any of the above method embodiments.

[0342] The present application also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.

[0343] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer programs are loaded on a computer and executed, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer programs can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer programs can be transferred from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be magnetic media (such as floppy disk, hard disk, magnetic tape), optical media (such as high-density digital video disc (digital video disc, DVD)), or semiconductor media (such as solid state disk (solid state disk, SSD)) and the like.

[0344] Those skilled in the art can understand that the first, second, etc. various numerical designations involved in the present application are only for the convenience of description, and do not limit the scope of the embodiments of the present application, nor indicate the order.

[0345] At least one of the present application can also be described as one or more, and the plurality can be two, three, four or more, which is not limited in the present application. In the embodiments of the present application, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D". There is no order or size order between the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0346] The correspondence relationship shown in each table in the present application can be configured or predefined. The values of the signals in each table are merely examples, and other values can be configured, and the present application is not limited thereto. When configuring the correspondence relationship of the information and each parameter, it is not necessarily required to configure all the correspondence relationships shown in each table. For example, the correspondence relationship shown in some rows in the table in the present application can also not be configured. For another example, the above tables can be appropriately deformed, for example, split, merged, and the like. The names of the parameters shown in the titles of the above tables can also use other names understandable by the communication device, and the values or representations of the parameters can also use other values or representations understandable by the communication device. The above tables can also use other data structures when implemented, for example, arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or the like.

[0347] The predefinition in the present application can be understood as definition, predefinition, storage, prestorage, prenegotiation, preconfiguration, solidification, or pre-burning.

[0348] Those skilled in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0349] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0350] The above is merely a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for transmission of sidelink, SL, positioning capability, the method comprising: The method is performed by a first terminal device, and the method comprises: In a case where a network device participates in SL positioning between terminal devices, sending SL positioning capability information to the network device; The SL positioning capability information comprises SL positioning capability information of other second terminal devices; The second terminal devices are one or more terminal devices located in a periphery of the first terminal device and having SL positioning capability; The method further comprises: Determining candidate terminal devices located in the periphery of the first terminal device and having SL positioning capability; Selecting one or more terminal devices from the candidate terminal devices as the second terminal devices.

2. The method of claim 1, wherein, The first terminal device is one of the following types: A terminal device initiating SL positioning; A target terminal device; An anchor terminal device.

3. The method of claim 1, wherein, The SL positioning capability information further comprises: SL positioning capability information of the first terminal device.

4. The method of claim 3, wherein, The SL positioning capability information comprises at least one of the following information: Identification information of a terminal device to be reported with SL positioning capability information, wherein the terminal device to be reported with SL positioning capability information comprises the first terminal device and / or the second terminal device; An SL positioning manner supported by the terminal device to be reported with SL positioning capability information; An SL positioning bandwidth supported by the terminal device to be reported with SL positioning capability information.

5. The method of claim 1, wherein, The second terminal devices are one or more terminal devices located in the periphery of the first terminal device and having SL positioning capability but not being in network coverage; or The second terminal devices are one or more terminal devices located in the periphery of the first terminal device and having SL positioning capability and being in network coverage but not being in a connected state.

6. The method of claim 3, wherein, The method further comprises: Obtaining SL positioning capability information of the second terminal devices and sending the SL positioning capability information to the network device.

7. The method of claim 1, wherein, The method further comprises: Simultaneously with sending the SL positioning capability information to the network device, sending indication information to the network device, wherein the indication information is used to indicate description information of the terminal device to be reported with SL positioning capability information.

8. The method of claim 7, wherein, The indication information is used to indicate at least one of the following description information: Information used to indicate whether the terminal device to be reported with SL positioning capability information is in network coverage; Information used to indicate a current state of the terminal device to be reported with SL positioning capability information; Information used to indicate identification information of the terminal device to be reported with SL positioning capability information; Information used to indicate a terminal role supported by the terminal device to be reported with SL positioning capability information; Information used to indicate SL signal quality of the terminal device to be reported with SL positioning capability information.

9. The method of claim 7, wherein, The terminal device to be reported with SL positioning capability information is one of the following types: A terminal device discovered by the first terminal device and having SL positioning capability; An anchor terminal device determined by the first terminal device; A target terminal device determined by the first terminal device.

10. The method of claim 4 or 8, wherein, The identification information of the terminal device comprises at least one of the following identifications: An identification of a source layer 2 of the terminal device; An identification of a target layer 2 of the terminal device; An international mobile equipment identity (IMEI) of the terminal device; An international mobile subscriber identity (IMSI) of the terminal device; A temporary terminal device identity (S-TMSI / TMSI) of the terminal device; An identity of an application layer of the terminal device.

11. The method of claim 1, wherein, The method further includes: receiving a first positioning capability request sent by the network device, the first positioning capability request being used to request SL positioning capability information of one or more terminal devices.

12. The method of claim 1, wherein, The method further includes: receiving a second positioning capability request sent by the network device for a terminal device not in network coverage, the second positioning capability request being used to request the first terminal device to provide SL positioning capability information of the terminal device not in network coverage.

13. The method according to claim 11 or 12, characterized in that, The identity information of the requested terminal device is included in any positioning capability request.

14. The method of claim 11 or 12, wherein, The method further includes: if the first terminal device fails to acquire the SL positioning capability information of the terminal device requested by the network device, sending, to the network device, acquisition failure indication information.

15. The method of claim 1, wherein, The method further includes: when the first terminal device is in network coverage, directly sending the SL positioning capability information to the network device; or when the first terminal device is not in network coverage, sending the SL positioning capability information to the network device through a third terminal device.

16. The method of claim 15, wherein, The sending of the SL positioning capability information to the network device through the third terminal device includes: selecting, from terminal devices surrounding the first terminal device and supporting SL positioning, a terminal device in network coverage as the third terminal device; sending the SL positioning capability information to the third terminal device, and forwarding, by the third terminal device, the SL positioning capability information to the network device.

17. The method according to claim 15 or 16, characterized in that, The method further includes: when the SL positioning capability information is sent to the third terminal device, sending first forwarding indication information to the third terminal device, the first forwarding indication information being used to instruct the third terminal device to forward the SL positioning capability information to the network device; or when the SL positioning capability information is sent to the third terminal device, sending second forwarding indication information to the third terminal device, the second forwarding indication information being used to instruct the third terminal device whether to forward the SL positioning capability information to the network device.

18. A method for transmission of sidelink, SL, positioning capability, the method comprising: The method is performed by a network device, and includes: in a case where the network device participates in SL positioning between terminal devices, receiving SL positioning capability information sent by a first terminal device; the SL positioning capability information includes SL positioning capability information of other second terminal devices; the second terminal devices are one or more terminal devices surrounding the first terminal device and having SL positioning capability, and the second terminal devices are one or more terminal devices selected by the first terminal device from candidate terminal devices surrounding the first terminal device and having SL positioning capability.

19. The method of claim 18, wherein, The first terminal device is one of the following types: a terminal device initiating SL positioning; a target terminal device; an anchor terminal device.

20. The method of claim 18, wherein, The SL positioning capability information further includes: SL positioning capability information of the first terminal device.

21. The method of claim 20, wherein, The SL positioning capability information comprises at least one of the following information: Identity information of a terminal device to be reported with SL positioning capability information, wherein the terminal device to be reported with SL positioning capability information comprises the first terminal device and / or the second terminal device; An SL positioning mode supported by the terminal device to be reported with SL positioning capability information; An SL positioning bandwidth supported by the terminal device to be reported with SL positioning capability information.

22. The method of claim 18, wherein, The second terminal device is one or more terminal devices located around the first terminal device and having SL positioning capability, but not in network coverage; or The second terminal device is one or more terminal devices located around the first terminal device and having SL positioning capability, although in network coverage, but not in a connected state.

23. The method of claim 18, wherein, The method further comprises: While receiving the SL positioning capability information sent by the terminal device, receiving indication information sent by the terminal device, wherein the indication information is used to indicate description information of a terminal device to be reported with SL positioning capability information.

24. The method of claim 23, wherein, The indication information is used to indicate at least one of the following description information: Information used to indicate whether the terminal device to be reported with SL positioning capability information is in network coverage; Information used to indicate the current state of the terminal device to be reported with SL positioning capability information; Information used to indicate the identity information of the terminal device to be reported with SL positioning capability information; Information used to indicate the terminal role supported by the terminal device to be reported with SL positioning capability information; Information used to indicate the SL signal quality of the terminal device to be reported with SL positioning capability information.

25. The method of claim 23, wherein, The terminal device to be reported with SL positioning capability information comprises one of the following types: The first terminal device discovers a terminal device located around and having SL positioning capability; An anchor terminal device determined by the first terminal device; A target terminal device determined by the first terminal device.

26. The method of claim 21 or 24, wherein, The identity information of the terminal device comprises at least one of the following identities: Identity of a source layer 2 of the terminal device; Identity of a target layer 2 of the terminal device; International mobile equipment identity (IMEI) of the terminal device; International mobile subscriber identity (IMSI) of the terminal device; Temporary terminal device identification number (S-TMSI / TMSI) of the terminal device; Identity of an application layer of the terminal device.

27. The method of claim 18, wherein, The method further comprises: Sending a first positioning capability request to the terminal device, wherein the first positioning capability request is used to request SL positioning capability information of one or more terminal devices.

28. The method of claim 18, wherein, The method further comprises: Sending a second positioning capability request of a terminal device not in network coverage to the terminal device, wherein the second positioning capability request is used to request the first terminal device to provide SL positioning capability information of the terminal device not in network coverage.

29. The method of claim 18, wherein, The method further comprises: Determining a terminal device in network coverage, and directly sending a positioning capability request to the terminal device in network coverage; or Determining a terminal device in network coverage and in a connected state or an inactive state, and directly sending a positioning capability request to the terminal device in network coverage and in a connected state or an inactive state.

30. The method of any one of claims 27-29, wherein, The identity information of the requested terminal device is included in the positioning capability request.

31. The method of claim 27, wherein, The method further includes: If the first terminal device fails to acquire the SL positioning capability information of the terminal device requested by the network device, receiving indication information that acquisition fails sent by the terminal device.

32. The method of claim 18, wherein, The method further includes: When the first terminal device is not in network coverage, receiving the SL positioning capability information forwarded by a third terminal device.

33. A communications device, characterized by The apparatus is applied to a first terminal device and includes: A transceiver module, configured to send SL positioning capability information to a network device in a case where the network device participates in SL positioning between terminal devices. The SL positioning capability information includes SL positioning capability information of other second terminal devices. The second terminal devices are one or more terminal devices located around the first terminal device and having SL positioning capability. The apparatus is further configured to: Determine candidate terminal devices located around the first terminal device and having SL positioning capability. Select one or more terminal devices from the candidate terminal devices as the second terminal devices.

34. A communications device, characterized by The apparatus is applied to a network device and includes: A transceiver module, configured to receive SL positioning capability information sent by a first terminal device in a case where the network device participates in SL positioning between terminal devices. The SL positioning capability information includes SL positioning capability information of other second terminal devices. The second terminal devices are one or more terminal devices located around the first terminal device and having SL positioning capability, and the second terminal devices are one or more terminal devices selected by the first terminal device from candidate terminal devices located around the first terminal device and having SL positioning capability.

35. A communications device, characterized by The apparatus includes a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory, so that the apparatus performs the method in any one of claims 1 to 17, or the processor executes the computer program stored in the memory, so that the apparatus performs the method in any one of claims 18 to 32.

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