Communication method, device, communication system and storage medium

Abstract

The present disclosure relates to a communication method, a device, a communication system and a storage medium. The method comprises: sending first information to a second device, wherein the first information comprises sidelink (SL) positioning request information of a terminal, the first information comprises identifier information, the identifier information is used for associating SL positioning interaction information between a first device and the second device or between the first device and a third device, and the second device is used for determining SL positioning result information of the terminal on the basis of the first information. Thus, positioning service interaction information between UEs processed by a second device is distinguished by assigning identifiers used for associating all location service interactions between the UEs, so as to ensure that the second device can simultaneously process positioning services between a plurality of UEs, thereby avoiding confusion in the positioning service processing of the second device, and improving the positioning processing performance of the second device.

Description

Communication method, device, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a communication method, device, communication system, and storage medium. Background Art

[0002] In the related technology, the UE-only operation mode of UE (User Equipment) in the absence of network signal coverage or weak coverage is defined. In this mode, the SL (Sidelink) Positioning Server UE can be discovered and selected by other UEs for the following SL positioning services: positioning result calculation, determination of positioning method, auxiliary data distribution, etc., to feedback the SL positioning service results of the target UE. When the LMF (Location Management Function) network element with ranging / sidelink positioning function is reachable to the target UE and / or SL reference UE, it can be determined by the LMF and the position calculation can be performed through the SL positioning server UE, the target UE, and the SL reference UE.

[0003] Summary of the Invention

[0004] In order to overcome the problem of disordered terminal positioning service information in related technologies, the present disclosure provides a communication method, device, communication system and storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a communication method is provided, which is performed by a first device. The method includes:

[0006] Send first information to the second device, the first information includes the side link SL positioning request information of the terminal, the first information includes identifier information, the identifier information is used to associate the SL positioning interaction information between the first device and the second device or the first device and the third device, the second device is used to determine the SL positioning result information of the terminal based on the first information.

[0007] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, which is performed by a second device. The method includes:

[0008] receiving first information sent by a first device, where the first information includes SL positioning request information of a terminal;

[0009] Based on the first information, second information is sent to the first device, where the second information includes identifier information, and the identifier information is used to associate SL positioning interaction information between the first device and the second device or the first device and the third device.

[0010] According to a third aspect of an embodiment of the present disclosure, a communication method is provided, the method comprising:

[0011] The first device sends first information to the second device, where the first information includes side link SL positioning request information of the terminal;

[0012] The second device sends second information to the first device based on the first information, and the first information and / or the second information include identifier information, and the identifier information is used to associate the SL positioning interaction information between the first device and the second device or the first device and the third device. The second information includes identifier information.

[0013] According to a fourth aspect of an embodiment of the present disclosure, a first device is provided, including:

[0014] The first transceiver module is configured to send first information to the second device, where the first information includes the side link SL positioning request information of the terminal, and the first information includes identifier information, where the identifier information is used to associate the SL positioning interaction information between the first device and the second device or the first device and the third device, and the second device is used to determine the SL positioning result information of the terminal based on the first information.

[0015] According to a fifth aspect of an embodiment of the present disclosure, a second device is provided, including:

[0016] A second transceiver module is configured to receive first information sent by the first device, where the first information includes SL positioning request information of the terminal;

[0017] The third transceiver module is configured to send second information to the first device based on the first information, where the second information includes identifier information, and the identifier information is used to associate SL positioning interaction information between the first device and the second device or the first device and the third device.

[0018] According to a sixth aspect of an embodiment of the present disclosure, there is provided a first device, including:

[0019] one or more processors;

[0020] The terminal is used to execute the communication method described in any one of the first aspects of this disclosure.

[0021] According to a seventh aspect of an embodiment of the present disclosure, a second device is provided, including:

[0022] one or more processors;

[0023] The network device is used to execute the communication method described in any one of the second aspects of this disclosure.

[0024] According to an eighth aspect of an embodiment of the present disclosure, a communication system is provided, comprising a first device and a second device, wherein the first device is configured to implement the communication method described in any one of the first aspects of the present disclosure, and the second device is configured to implement the communication method described in any one of the second aspects of the present disclosure.

[0025] According to the ninth aspect of an embodiment of the present disclosure, a storage medium is provided, which stores instructions. When the instructions are executed on a communication device, the communication device executes the communication method as described in any one of the first aspect of the present disclosure or the communication device executes the communication method as described in any one of the second aspect of the present disclosure.

[0026] In the above manner, the first information is sent to the second device, the first information including the side link SL positioning request information of the terminal, the first information including identifier information, the identifier information being used to associate the SL positioning interaction information between the first device and the second device or the first device and the third device, and the second device being used to determine the SL positioning result information of the terminal based on the first information. Thus, by allocating an identifier for associating all location service interactions between UEs, the positioning service interaction information between UEs processed by the second device is distinguished, ensuring that the second device can simultaneously process positioning services between multiple UEs, avoiding confusion in positioning service processing in the second device, and improving the positioning processing performance of the second device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0028] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0029] FIG1 b is a flow chart of an SL positioning service method according to an embodiment of the present disclosure.

[0030] FIG2 is an interactive schematic diagram illustrating a communication method according to an embodiment of the present disclosure.

[0031] FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure.

[0032] FIG4 is a flow chart showing a communication method according to an embodiment of the present disclosure.

[0033] FIG5 is an interactive diagram illustrating a communication method according to an embodiment of the present disclosure.

[0034] FIG6 is a schematic structural diagram of a first device proposed in an embodiment of the present disclosure.

[0035] FIG7 is a schematic structural diagram of a second device proposed in an embodiment of the present disclosure.

[0036] FIG8 is a schematic structural diagram of a communication device 8100 according to an embodiment of the present disclosure.

[0037] FIG9 is a schematic structural diagram of a chip 8200 according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0038] The embodiments of the present disclosure provide a communication method, a device, a communication system, and a storage medium.

[0039] In a first aspect, an embodiment of the present disclosure provides a communication method, which is performed by a first device. The method includes:

[0040] Send first information to the second device, the first information includes the side link SL positioning request information of the terminal, the first information includes identifier information, the identifier information is used to associate the SL positioning interaction information between the first device and the second device or the first device and the third device, the second device is used to determine the SL positioning result information of the terminal based on the first information.

[0041] Through the above scheme, a first message is sent to the second device, the first message including the terminal's side link SL positioning request information, the first message including identifier information, the identifier information being used to associate the SL positioning interaction information between the first device and the second device or between the first device and the third device, and the second device being used to determine the terminal's SL positioning result information based on the first information. Thus, by allocating an identifier for associating all location service interactions between UEs, the location service interaction information between UEs processed by the second device is distinguished, ensuring that the second device can simultaneously process positioning services between multiple UEs, avoiding confusion in positioning service processing in the second device, and improving the positioning processing performance of the second device.

[0042] In combination with some embodiments of the first aspect, the SL positioning interaction information includes at least one of the following:

[0043] The SL positioning request information;

[0044] first sidelink positioning capability information of the first device;

[0045] second side link positioning capability information of the third device;

[0046] SL measurement request information of the third device;

[0047] sidelink positioning measurement data of the first device and / or the third device.

[0048] In conjunction with some embodiments of the first aspect, the method further includes:

[0049] receiving second information sent by the second device, where the second information includes the identifier information;

[0050] Based on the second information, first sidelink positioning capability information of the first device is determined.

[0051] In combination with some embodiments of the first aspect, the second information is carried by service layer positioning protocol SLPP information.

[0052] In combination with some embodiments of the first aspect, the second information is carried by Supplementary Ranging / Sidelink Positioning Protocol RSPP information, and the method further includes:

[0053] Based on the supplementary RSPP information, third information is sent to the third device, where the third information is used to instruct the third device to feed back the second sidelink positioning capability information of the third device according to the third information, and the third information includes the identifier information.

[0054] In combination with some embodiments of the first aspect, the supplementary RSPP information includes application layer ID information of the third device.

[0055] In conjunction with some embodiments of the first aspect, the method further includes:

[0056] Send the first sidelink positioning capability information to the second device.

[0057] In conjunction with some embodiments of the first aspect, the method further includes:

[0058] Fourth information is sent to the second device, where the fourth information is used to indicate the first side link positioning capability information and the second side link positioning capability information, and the fourth information includes the identifier information.

[0059] In conjunction with some embodiments of the first aspect, the method further includes:

[0060] Receive SL positioning assistance data sent by the second device, where the SL positioning assistance data is carried by supplementary RSPP information, and the supplementary RSPP information includes the identifier information.

[0061] In conjunction with some embodiments of the first aspect, the method further includes:

[0062] receiving SL measurement request information sent by the second device, where the SL measurement request information includes the identifier information;

[0063] generating sidelink positioning measurement data according to the SL measurement request information and the SL positioning assistance data;

[0064] The sidelink positioning measurement data is sent to the second device, where the sidelink positioning measurement data includes the identifier information.

[0065] In conjunction with some embodiments of the first aspect, the method further includes:

[0066] Receive the SL positioning result information sent by the second device, the SL positioning result information.

[0067] In conjunction with some embodiments of the first aspect, the method further includes:

[0068] Send the SL positioning result information to the fourth device.

[0069] In combination with some embodiments of the first aspect, the first information includes supplementary RSPP information, and the first information also includes SL positioning result type and SL positioning service quality.

[0070] In conjunction with some embodiments of the first aspect, the method further includes:

[0071] receiving the first information sent by a fourth device; or,

[0072] The first information is obtained from an RSPP application layer of the first device.

[0073] In conjunction with some embodiments of the first aspect, the method further includes:

[0074] The identifier information is determined according to the first information.

[0075] In conjunction with some embodiments of the first aspect, the method further includes:

[0076] A third device is determined based on the first information.

[0077] In conjunction with some embodiments of the first aspect, the method further includes:

[0078] Determining that neither the first device nor the third device supports the SL positioning service or determining that neither the first service network of the first device nor the third device supports the SL positioning service, and obtaining first sidelink positioning capability information of the first device and second sidelink positioning capability information of the third device;

[0079] The second device is determined from the first device and the third device according to the first side chain positioning capability information and the second side chain positioning capability information.

[0080] In combination with some embodiments of the first aspect, determining the second device from the first device and the third device based on the first sidechain positioning capability information and the second sidechain positioning capability information includes:

[0081] Determining, based on the first side chain positioning capability information, that the first device does not support an SL positioning server function;

[0082] Based on the second side chain positioning capability information, the second device is determined from the third device, and the second device supports the SL positioning server function.

[0083] In conjunction with some embodiments of the first aspect, determining the second device from the first device and the third device includes:

[0084] determining that the second device is different from the first device;

[0085] According to the second SL positioning capability information, the second device is determined from the third device, and the second device supports the SL positioning server function.

[0086] In conjunction with some embodiments of the first aspect, the first device is the terminal, and the method further includes:

[0087] receiving fifth information sent by the location management function LMF network element;

[0088] determining the identifier information based on the fifth information;

[0089] The first information is generated according to the identifier information and the fifth information.

[0090] In conjunction with some embodiments of the first aspect, the method further includes:

[0091] The second device is determined according to the fifth information.

[0092] In conjunction with some embodiments of the first aspect, the second device includes the terminal, and sending the first information to the second device includes:

[0093] receiving the fifth information sent by the LMF network element;

[0094] determining the identifier information and the terminal according to the fifth information;

[0095] generating the first information according to the identifier information and the fifth information;

[0096] The first information is sent to the terminal, where the first information is used to instruct the terminal to send the first information to the second device.

[0097] In a second aspect, an embodiment of the present disclosure provides a communication method, which is performed by a second device. The method includes:

[0098] receiving first information sent by a first device, where the first information includes SL positioning request information of a terminal;

[0099] Based on the first information, second information is sent to the first device, where the second information includes identifier information, and the identifier information is used to associate SL positioning interaction information between the first device and the second device or the first device and the third device.

[0100] In conjunction with some embodiments of the second aspect, the SL positioning interaction information includes at least one of the following:

[0101] The SL positioning request information;

[0102] first side chain positioning capability information of the first device;

[0103] second side link positioning capability information of the third device;

[0104] SL measurement request information of the third device;

[0105] sidelink positioning measurement data of the first device and / or the third device.

[0106] In conjunction with some embodiments of the second aspect, the method further includes:

[0107] The identifier information is determined according to the first information.

[0108] In combination with some embodiments of the second aspect, the second information is carried through an SLPP information bearer or an RSPP information bearer.

[0109] In conjunction with some embodiments of the second aspect, the method further includes:

[0110] SL positioning assistance data is sent to the first device, where the SL positioning assistance data is carried by supplementary RSPP information, and the supplementary RSPP information includes the identifier information.

[0111] In conjunction with some embodiments of the second aspect, the method further includes:

[0112] Sending SL measurement request information to the first device, where the SL measurement request information is carried by supplementary RSPP information, and the supplementary RSPP information includes the identifier information.

[0113] In conjunction with some embodiments of the second aspect, the method further includes:

[0114] Send SL positioning result information to the first device, where the SL positioning result information is carried by supplementary RSPP information, and the supplementary RSPP information includes the identifier information.

[0115] In a third aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0116] The first device sends first information to the second device, where the first information includes side link SL positioning request information of the terminal;

[0117] The second device sends second information to the first device based on the first information, and the first information and / or the second information include identifier information, and the identifier information is used to associate the SL positioning interaction information between the first device and the second device or the first device and the third device. The second information includes identifier information.

[0118] In a fourth aspect, an embodiment of the present disclosure provides a first device, including:

[0119] The first transceiver module is configured to send first information to the second device, where the first information includes the side link SL positioning request information of the terminal, and the first information includes identifier information, where the identifier information is used to associate the SL positioning interaction information between the first device and the second device or the first device and the third device, and the second device is used to determine the SL positioning result information of the terminal based on the first information.

[0120] In a fifth aspect, an embodiment of the present disclosure provides a second device, including:

[0121] A second transceiver module is configured to receive first information sent by the first device, where the first information includes SL positioning request information of the terminal;

[0122] The third transceiver module is configured to send second information to the first device based on the first information, where the second information includes identifier information, and the identifier information is used to associate SL positioning interaction information between the first device and the second device or the first device and the third device.

[0123] In a sixth aspect, an embodiment of the present disclosure provides a first device, including:

[0124] one or more processors;

[0125] The terminal is used to execute the communication method described in any one of the first aspects of this disclosure.

[0126] In a seventh aspect, an embodiment of the present disclosure provides a second device, including:

[0127] one or more processors;

[0128] The network device is used to execute the communication method described in any one of the second aspects of this disclosure.

[0129] In the eighth aspect, an embodiment of the present disclosure proposes a communication system, comprising a first device and a second device, wherein the first device is configured to implement the communication method described in any one of the first aspects of the present disclosure, and the second device is configured to implement the communication method described in any one of the second aspects of the present disclosure.

[0130] In the ninth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the communication method as described in any one of the first aspect of the present disclosure or the communication device executes the communication method as described in any one of the second aspect of the present disclosure.

[0131] In the above manner, the first information is sent to the second device, the first information including the side link SL positioning request information of the terminal, the first information including identifier information, the identifier information being used to associate the SL positioning interaction information between the first device and the second device or the first device and the third device, and the second device being used to determine the SL positioning result information of the terminal based on the first information. Thus, by allocating an identifier for associating all location service interactions between UEs, the positioning service interaction information between UEs processed by the second device is distinguished, ensuring that the second device can simultaneously process positioning services between multiple UEs, avoiding confusion in positioning service processing in the second device, and improving the positioning processing performance of the second device.

[0132] The present disclosure provides a communication method, device, communication system, and storage medium. In some embodiments, the terms "communication method," "information processing method," and "communication method" are interchangeable; the terms "communication device," "information processing device," and "communication device" are interchangeable; and the terms "information processing system," "communication system," and "communication system" are interchangeable.

[0133] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0134] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0135] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0136] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0137] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0138] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0139] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0140] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0141] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0142] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0143] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0144] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0145] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0146] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0147] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0148] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0149] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0150] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0151] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0152] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0153] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0154] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0155] FIG1a is a schematic diagram illustrating an architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1 , a communication system 100 includes a first device 101 and a second device 102 .

[0156] In some embodiments, the first device 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, 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 a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0157] In some embodiments, the second device 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, 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 a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0158] In some embodiments, the communication system 100 further includes a network device, which may include at least one of an access network device and a core network device.

[0159] Optionally, the access network device is, for example, a node or device that accesses the terminal to the wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0160] In some embodiments, the network device is a core network device. The core network device can be a single device including a first network element, a second network element, etc., or can be multiple devices or a group of devices, each including all or part of the first network element, the second network element, etc. The network element can be virtual or physical. The core network includes, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0161] In some embodiments, the network device is a base station. Optionally, the base station is, for example, a macro base station, a micro base station (also known as a small station), a relay station, an access point, a 5G base station or a future base station, a satellite, a transmission point (Transmitting and Receiving Point, TRP), a transmission point (Transmitting Point, TP), a mobile switching center, or other devices that perform base station functions in a communication system, etc., which are not specifically limited in the embodiments of the present disclosure. For ease of description, in all embodiments of the present disclosure, devices that provide wireless communication functions for terminal devices are collectively referred to as network devices or base stations.

[0162] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0163] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0164] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0165] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0166] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0167] In some embodiments, when the UE is provided with network services by NG-RAN (Next Generation Radio Access Network, next generation radio access network / 5G radio access network), and the current service network includes an LMF (Location Management Function) network element, but the LMF network element does not participate in SL positioning or ranging, UE-only Operation is used for SL positioning. There are two cases: the target UE acts as a SL Positioning Server UE and the target UE is not a SL Positioning Server UE. The target UE is a terminal whose position needs to be determined based on the SL Positioning Server UE.

[0168] In some embodiments, when the target UE is not a SL Positioning Server UE, the following principles apply: the target UE discovers and selects the SL Positioning Server UE; the target UE requests its absolute location information from the SL Positioning Server UE. The SL Positioning Server UE and the target UE perform SL positioning service interaction to exchange UE capability information, SL assistance data information, ranging information, SL positioning measurement data information, and SL positioning result information. The SL positioning result information includes at least one of the target UE's absolute location information, relative location information, or distance and direction information between paired UEs.

[0169] In some embodiments, the SL Positioning Server UE may also select the location information, ranging information, SL positioning measurement data and SL positioning result information of the positioned UE to determine the SL positioning result information of the target UE.

[0170] In some embodiments, the SL Positioning Server UE can return the measurement data or SL positioning results to the target UE, and the target UE can feedback the SL positioning results of the target UE to the SL Positioning Client UE (SL positioning client UE); the target UE can also send the SL positioning results to the application layer requesting the target UE position.

[0171] In some embodiments, ranging / SL positioning and positioning of the located UE may be scheduled within the same predetermined time to improve the positioning accuracy of the target UE.

[0172] In some embodiments, when the SL Positioning Server UE triggers the UE-only Operation of the UE, if the SL Reference UE receives the SL positioning service request from the SL Positioning Client UE, the above principles apply to the SL Reference UE that receives the SL server request from the client UE rather than the target UE.

[0173] In some embodiments, the SL Positioning Server UE can perform UE interactions related to LMF functions, such as SL result calculation, SL positioning method determination, SL assistance data distribution, SL positioning capability exchange, SL ranging, SL positioning data measurement and SL result exchange. The SL Positioning Server UE can process SL positioning services for multiple UEs at the same time, so the SL Positioning Server UE needs to associate multiple interaction information with the corresponding UE positioning services to avoid confusion between the SL positioning interaction information.

[0174] FIG1b is a flow chart of a SL positioning service method according to an embodiment of the present disclosure. As shown in FIG1b , the embodiment of the present disclosure relates to a SL positioning service method, which includes:

[0175] Before describing the method in this embodiment, the relevant names are explained:

[0176] Located UE: A UE with a known location or a SL Reference UE that can obtain its location information via the Uu interface (the UE accesses the fixed network portion of the WCDMA system via the Uu interface). A Located UE can be used for common SL positioning to determine the location of a target UE.

[0177] Network-based Operation: Ranging or SL positioning is performed with the participation of 5GC (5G Core Network)-NF (Network Functions) network elements to handle service requests and calculation results in the SL positioning process.

[0178] Positioning function: the function of detecting the geographical location of the UE and the speed of the UE (for example, the speed of the mobile terminal).

[0179] Ranging: Determine the distance between two or more UEs and / or the relative direction between one UE (i.e., target UE) and another UE (i.e., SL Reference UE) through the PC5 (Proximity Communication) interface.

[0180] Relative position: The estimated position of the UE relative to other network elements or other UEs.

[0181] Relative velocity: An estimate of the velocity of a UE relative to another UE.

[0182] SL Reference UE: A UE that supports the positioning of a target UE, for example, by transmitting and / or receiving SL positioning reference signals using sidelink, providing SL positioning related information, etc.

[0183] Sidelink Positioning: Use PC5 to locate the UE to obtain the UE's absolute position information, relative position information, or ranging information.

[0184] SL Positioning Client UE: A third-party UE other than the SL Reference UE and Target UE, which initiates a Ranging / SL positioning service request on behalf of the applications residing on it to obtain the SL positioning information of the target UE.

[0185] SL Positioning Server UE: A UE that provides positioning method determination, positioning assistance data distribution, and / or position calculation capabilities for SL positioning and ranging services. It interacts with other UEs for SL positioning services via PC5 as needed to determine ranging / SL positioning methods, distribute assistance data, and calculate the position of the target UE. If the UE supports the SL positioning functionality of the SL Positioning Client UE, the target UE or SL Reference UE can also act as a SL Positioning Server UE.

[0186] Target UE: A UE whose distance, direction and / or position is measured using the SL with the support of one or more SL Reference UEs in ranging-based service and SL positioning procedures.

[0187] During the ranging / SL positioning service process, if the current UE's serving network does not support ranging / SL positioning (Ranging / SL Positioning), or when the UE is out of coverage of the serving network or in UE-only operation, the SL Reference UE is selected through PC5 to perform the SL positioning service. If the target UE and / or SL Reference UE can reach the LMF (location management function network element) with the Ranging / SL positioning (ranging / SL positioning) function, the LMF can still decide whether the result calculation is performed by the SL Positioning Server UE, the target UE or the SL Reference UE. At this time, the SL Positioning Server UE can be located in the same place as the target UE or SL Reference UE.

[0188] 1. UE1 (including target UE or SL Reference UE) can receive Ranging / SL positioning service requests from the following devices:

[0189] 1a. During the ranging / SL positioning service via the PC5 interface, the SL Positioning Client UE sends a Ranging / SL positioning service request via the PC5;

[0190] 1b. RSPP (Ranging / Sidelink Positioning Protocol) application layer of UE1.

[0191] For example, in some embodiments, the Ranging / SL positioning service request includes the ID information of the target UE, and UE1 searches for the target UE within the communication range of UE1 according to the ID information.

[0192] 2. Discover UE2-UEn (i.e., SL Reference UE / Positioning UE) within the coverage of UE1, where UE2-UEn includes the SL Reference UE, the Located UE, and the target UE. For example, in some embodiments, the Ranging / SL Positioning Service Request includes a candidate UE sequence, and UE1 can determine UE2-UEn from within the coverage based on the PC5 interface based on the candidate UE sequence.

[0193] 3. If neither UE1 nor UEn is served by NG-RAN or the current serving network does not support Ranging / SL Positioning, it is determined that the current operating modes of UE1-UEn are both UE-only Operation.

[0194] 4. UE1 and UE2-UEn exchange SL positioning service capabilities, and UE2-UEn reports the corresponding SL positioning service capabilities to UE1 through the PC5 interface. This step can also be completed in step 7 under the coordination of the SL Positioning Server UE.

[0195] 5. If UE1 does not support the SL Positioning Server function or UE1 selects a different SL Positioning Server UE from UE1, that is, UE1 cannot serve as the SL Positioning Server UE, it will discover and select a UE from UE2-UEn as the SL Positioning Server UE (co-located with the SL Reference UE / Located UE or performed by a separate UE). If the SL Positioning Server UE is co-located with the SL Reference UE / Target UE or operated by a separate UE, UE1 discovers and selects the SL Positioning Server UE, and a secure PC5 link is established between UE1 and the selected SL Positioning Server UE, and SL positioning service interaction is performed based on the PC5 link.

[0196] For example, in some embodiments, if the positioning UE is provided with network services by NG-RAN, the absolute location information of the UE1 can be obtained using the 5GC-MO-LR (5G Core Network Mobile Originated Location Request) process in the NG-RAN network service.

[0197] 6. If a SL Positioning Server UE is selected in the above steps, UE1 will send a Ranging / SL Positioning Request to the selected SL Positioning Server UE using a supplementary RSPP (Ranging / Sidelink Positioning Protocol) signaling message. This request uses the application layer ID to identify the other UE2-UEn and specifies the type of positioning result required for the Ranging / SL positioning request (such as absolute position, relative position, or distance and direction between paired UEs). The supplementary RSPP signaling also specifies the QoS (Quality of Service) required for Ranging / SL positioning.

[0198] 7. The SL Positioning Server UE uses an SLPP (Sidelink Positioning Protocol) message to send UE1's capability request information to UE1, and uses supplementary RSPP signaling (for example, including the SL Positioning capability request for UE2-UEn in the SLPP container) to send UE2-UEn's capability request to UE1, and attaches the corresponding application layer ID information of UE2-UEn. UE1 responds to the SL Positioning Server UE with its own capabilities using an SLPP message, and responds to the capabilities of UE2-UEn using a supplementary RSPP signaling message, wherein the supplementary RSPP signaling message carries the ID information of the application layer corresponding to UE2-UEn. For example, in some embodiments, if step 4 does not occur, UE1 uses an SLPP message in this step to obtain the positioning capability information of UE2-UEn.

[0199] For example, in some embodiments, the SL Positioning Server UE may select UEx-UEy for communication interaction from UE2-UEn based on the positioning capability information of UE1-UEn reported by UE1, for subsequent SL positioning / ranging operations, where UEx-UEy are UEs that support Ranging / SL positioning.

[0200] 8. The SL Positioning Server UE provides SL positioning assistance data to UE1. For example, in some embodiments, the SL positioning assistance data used by UE1 can be transmitted via SLPP messages. The SL positioning assistance data used by UEx-UEy can be transmitted using supplementary RSPP signaling messages, and the RSPP message carries the ID information of the application layer corresponding to UEx-UEy. Then, based on the ID information of UEx-UEy, UE1 sends the SL positioning assistance data of UEx-UEy to the corresponding UEx-UEy via SLPP messages.

[0201] 9. After the SL Positioning Server UE calculates the positioning results, it sends SL measurement request information for UE1 and UEx-UEy to UE1. The SL measurement request information for UE1 is carried in an SLPP message. The SL measurement request information for UEx-UEy is carried in a supplementary RSPP signaling message with the application layer ID corresponding to UEx-UEy. Furthermore, the SL Positioning Server UE can also request the absolute position information of UEx-UEy from UE1 using a supplementary RSPP signaling message with the application layer ID corresponding to UEx-UEy. UE1 then requests the absolute position information of UEx-UEy based on the supplementary RSPP signaling message.

[0202] 10. SL-PRS (SL-Positioning Reference Signal) measurements are performed between UE1 and UEx-UEy, and may also be performed between UEx-UEy. If the SL Positioning Server UE makes a measurement request in step 9, UE1 requests SL measurement information from UEx-UEy via an SLPP message and / or requests the absolute position information of UEx-UEy from UEx-UEy via a supplementary RSPP signaling message. If UE1 supports the SL positioning server function and UE1 does not select an SL Positioning Server UE in step 5 (the SL Positioning Server UE is different from UE1), the SL-PRS measurement data of UEx-UEy will be transmitted to UE1.

[0203] 11. Transmit UE1's SL-PRS measurement data to the SL Positioning Server UE via an SLPP message. If a measurement / SL positioning request is made in step 9, UE1 transmits the SL-PRS measurement data of UEx-UEy to the SL Positioning Server UE using a supplementary RSPP signaling message, so that the SL Positioning Server UE can calculate the positioning measurement results based on the SL-PRS measurement data. UE1 transmits the absolute position of UEx-UEy to the SL Positioning Server UE via a supplementary RSPP signaling message. For example, the supplementary RSPP signaling message carries the application layer ID information corresponding to UEx-UEy.

[0204] 12. Based on the positioning result type received in step 6 (such as UE absolute position, UE relative position, or distance and direction between paired UEs), calculate the SL positioning result on the SL Positioning Server UE, and the SL positioning result matches the positioning result type.

[0205] 13. After the SL Positioning Server UE determines the SL positioning result, it uses a supplementary RSPP signaling message to send a Ranging / SL positioning response to UE1. For example, the Ranging / SL positioning response includes the positioning result information required in step 6.

[0206] 14. UE1 sends the received Ranging / SL Positioning Response to the corresponding terminal that requested the positioning. For example, when requesting the Ranging / SL positioning service through PC5, UE1 sends the Ranging / SL Positioning Response to the SL Positioning Client UE through PC5. If UE1 is the positioning message requester, UE1 sends the Ranging / SL Positioning Response to the corresponding application layer of UE1.

[0207] For example, in the above embodiment, the interaction between the SL Positioning Client UE and UE1 is one-way, and the SL positioning interaction information of UE1 is not marked. If there is SL positioning interaction information between other UEs in the SL Positioning Client UE, the SL Positioning Client UE will be confused, resulting in the SL Positioning Client UE being unable to identify the associated UE1 of the SL positioning interaction information, causing positioning disorder problems in the SL Positioning Client UE.

[0208] Figure 2 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2, the embodiment of the present disclosure relates to a communication method, which is performed by a first device and a second device, and the method includes:

[0209] Step S2101: Send first information to the second device.

[0210] In some embodiments, the first information includes SL positioning request information of the terminal.

[0211] In some embodiments, the name of the first information is not limited, and it can be, for example, SL positioning request information.

[0212] In some embodiments, the first information includes identifier information. For example, the identifier information is used to associate SL positioning interaction information between the first device and the second device, or SL positioning interaction information between the first device and the third device.

[0213] In some embodiments, the name of the identifier information is not limited, and it can be, for example, SL positioning interaction identification information.

[0214] For example, in this embodiment, there may be SL positioning request information of multiple terminals in the second device at the same time. In order to avoid confusion of SL positioning service in the second device, in the first information sent by the first device to the second device, the SL positioning interaction information between the first device and the second device is associated through identifier information, so as to avoid the second device applying the positioning service information of other devices to the SL positioning service of the first device during the SL positioning service. In this way, the second device can process the SL positioning services of multiple UEs at the same time, thereby providing the SL positioning service performance of the second device.

[0215] For example, after the first device UE1 receives the SL positioning request information, it finds that UE2-UEn is a third device within the communication radiation range of PC5 of the first device UE1. The UE2-UEn may include SL Positioning Server UE, SL Positioning Client UE, SL Reference UE, Target UE, etc., and determines the UE with SL server function in UE2-UEn as the second device. During the SL positioning interaction process between the first device and the second device, the second device obtains relevant information of the third device through the first device. The relevant information includes SL positioning capability information of the third device, SL measurement information, etc. Therefore, SL positioning interaction is required between the first device and the third device, and the first device sends the obtained SL positioning information related to the third device to the second device. During the communication interaction process between the first device and the third device, the disorder of SL positioning service information in the device is also avoided, and the SL positioning interaction information between the first device and the third device is associated through the identifier.

[0216] In some embodiments, the second device is a SL Positioning Server UE, which is used to determine the SL positioning result information of the terminal based on the first information. For example, the explanations of the names such as SL Positioning Server UE, SL Positioning Client UE, SL Reference UE, and Target UE in this embodiment are the same as those in the above embodiment, and can be referred to the above embodiment, and will not be repeated here.

[0217] For example, in this embodiment, the second device is a UE with SL server function, and the second device is a UE that provides positioning method determination, positioning auxiliary data distribution and / or position calculation functions based on SL positioning and ranging services. It interacts with other UEs for SL positioning services through PC5 as needed to determine the ranging / SL positioning method, distribute auxiliary data and calculate the position of the target UE. If the UE supports the SL positioning function of the SL positioning client UE, the target UE or SL Reference UE can also act as the SL Positioning Server UE. The first device can be any one of the Client UE, SL Reference UE and Target UE. When the first device receives the SL positioning request information of the terminal (Target UE), the SL positioning request information is sent to the second device. The first device can receive the SL positioning request information from the SL Positioning Client UE, and can also receive the SL positioning request information of the terminal from the application layer of the first device.

[0218] For example, in this embodiment, the terminal is the target UE, and the second device starts the positioning service process of the terminal according to the SL positioning request information, and obtains the SL positioning result information of the terminal through the SL positioning interaction between the first device and the second device. The SL positioning result information is used to indicate the location information of the terminal, and the location information may include absolute location information, relative location information, location and angle information between the terminal and other UEs, etc. Optionally, in some embodiments, the first device may also be a terminal, and the SL positioning result information of the first device is obtained through the interaction between the first device and the second device.

[0219] In some embodiments, the SL positioning interaction information includes at least one of the following:

[0220] SL positioning request information;

[0221] first sidelink positioning capability information of the first device;

[0222] second side link positioning capability information of the third device;

[0223] SL measurement request information of the first device and / or the third device;

[0224] Sidelink positioning measurement data of the first device and / or the third device.

[0225] For example, the SL positioning interaction information between the first device and the second device includes: terminal-based SL positioning request information sent by the first device to the second device; first side link positioning capability information of the first device reported by the first device to the second device; second side link positioning capability information of the third device reported by the first device to the second device; SL measurement request information of the first device and / or the third device; side link positioning measurement data information of the first device and / or the third device.

[0226] Step S2102: The second device receives the first information sent by the first device.

[0227] Step S2103: The second device sends second information to the first device based on the first information.

[0228] In some embodiments, the name of the second information is not limited, and it can be, for example, capability request information.

[0229] For example, after receiving the first information from the first device, the second device requests the first device for the SL positioning capability information of the first device and / or the third device, so as to send SL positioning auxiliary measurement data for assisted positioning to the first device.

[0230] In some embodiments, the second information includes identifier information. The definition of the identifier information is the same as in the above embodiment and is not further described herein with reference to the above embodiment. For example, when the second device determines that the identifier information is not present in the first information, it assigns an identifier to the first information to associate the SL positioning interaction information between the first device and the second device.

[0231] Step S2104: The first device determines first sidelink positioning capability information of the first device based on the second information.

[0232] For example, the second information is SL positioning capability request information. The second device requests SL positioning capability from the first device through the second information. The first device sends the corresponding first side link positioning capability information to the second device based on the second information. The second device can determine the interaction mode of the SL positioning service based on the first side link positioning capability reported by the first device.

[0233] Optionally, in some embodiments, the second information is carried via SLPP information. For example, the second device carries the second information via SLPP information. After the first device determines the first side link positioning capability information based on the second information, it also feeds back the first side link positioning capability information of the first device to the second device via SLPP information. It should be noted that the SLPP information includes an identifier of the SL positioning service. The first device and the second device can determine the corresponding first side link positioning capability information through the identifier in the SLPP information for processing the SL positioning service between the first device and the second device.

[0234] Optionally, in some embodiments, the second information is carried by Supplementary Ranging / Sidelink Positioning Protocol (RSPP) information, and the method further includes:

[0235] Based on the supplementary RSPP information, third information is sent to the third device, where the third information is used to instruct the third device to feed back the second side link positioning capability information of the third device according to the third information, and the third information includes identifier information.

[0236] For example, the second information is carried by supplementary RSPP information, and the corresponding first device carries the first side link positioning capability information of the first device and the second side link positioning capability information of the third device through the supplementary RSPP information. The supplementary RSPP information includes identifier information for identifying the SL positioning interaction information between the first device and the second device. The supplementary RSPP information is used to carry the capability request information of the third device. After receiving the supplementary RSPP information, the first device determines the corresponding third device through the identifier in the supplementary RSPP information, and then carries the capability request information of the third device through the supplementary RSPP information through the PC5 interface, so that the third device feeds back the second side link positioning capability information of the third device based on the supplementary RSPP information. The first device then sends the second side link positioning capability information to the second device without carrying it in the RSPP information.

[0237] Optionally, in some embodiments, the supplementary RSPP information includes application layer ID information of the third device.

[0238] For example, the supplementary RSPP information includes application layer ID information corresponding to the third device, and the first device can determine the corresponding third device from multiple UEs through the application layer ID information.

[0239] Step S2105: The first device sends first side link positioning capability information to the second device.

[0240] For example, after the first device determines the first side link positioning capability information, it reports the information to the second device, so that the second device determines the SL positioning service method of the terminal based on the capability information.

[0241] Optionally, in some embodiments, the method further comprises:

[0242] Fourth information is sent to the second device, where the fourth information is used to indicate the first side link positioning capability information and the second side link positioning capability information, and the fourth information includes identifier information.

[0243] For example, in this embodiment, the second message carries capability request information for the first device via SLPP information and requests capability request information for the third device via supplementary RSPP information. Based on the capability request information carried in the SLPP information, the first device determines the corresponding first sidelink positioning capability. Based on the capability information carried in the supplementary RSPP information, the first device sends the supplementary RSPP information to the corresponding third device, causing the third device to provide feedback on the corresponding second sidelink positioning capability. A fourth message is sent to the second device, where the fourth message includes the first sidelink positioning capability information and the second sidelink positioning capability information. This fourth message also carries the first sidelink positioning capability information via SLPP information, and the second sidelink positioning capability information via supplementary RSPP information. The supplementary RSPP information includes identifier information.

[0244] Step S2106: The second device sends SL positioning assistance data to the first device according to the first side link positioning capability information.

[0245] For example, the second device may generate SL positioning assistance data based on the first side link positioning capability information reported by the first device, where the SL positioning assistance data is used to assist the first device in performing SL measurement.

[0246] Optionally, in some embodiments, the above step S2106 includes:

[0247] The second device sends the SL positioning assistance data to the first device according to the fourth information.

[0248] By way of example, in this embodiment, SL positioning assistance data for a first device is carried via SLPP information, and SL positioning assistance data for a third device is carried via supplemental RSPP information. The supplemental RSPP information includes identifier information. After receiving the SL positioning assistance data carried by the supplemental RSPP information, the first device sends the SL positioning assistance data to the third device via the supplemental RSPP information.

[0249] Step S2107: The first device receives the SL measurement request information sent by the second device.

[0250] For example, the SL measurement request information includes identifier information. For example, the SL measurement request information of the first device can be carried by SLPP information, and the SL measurement request information of the third device can be carried by supplementary RSPP information, wherein the supplementary RSPP information includes identifier information.

[0251] Step S2108: The first device generates side link positioning measurement data according to the SL measurement request information and the SL positioning assistance data, and sends the side link positioning measurement data to the second device.

[0252] For example, similar to the above embodiment, after the first device receives the SL measurement request sent by the second device, it measures the current SL-PRS data based on the SL positioning assistance data obtained in the above steps, and sends the SL-PRS data to the second device through SLPP information.

[0253] Optionally, the SL measurement request information includes measurement request information of a third device. The first device sends the measurement request information to the third device using supplemental RSPP information, so that the third device feeds back SL-PRS measurement data of the third device based on the supplemental RSPP information. The first device sends the SL-PRS measurement data of the third device to the second device using the supplemental RSPP information. The supplemental RSPP information includes identifier information.

[0254] Step S2109: The second device generates SL positioning result information based on the side link positioning measurement data and sends it to the first device.

[0255] For example, in this embodiment, SL positioning result information is carried via supplementary RSPP information, which includes identifier information. A second device generates SL positioning result information for the terminal based on the sidelink positioning measurement data, and carries the SL positioning result information via supplementary RSPP information. After receiving the SL positioning result information, the second device sends the SL positioning result information to a third device. For example, if the SL positioning result information is carried via SLPP information, then after receiving the SL positioning result information, the first device sends the SL positioning result information to the corresponding requesting end.

[0256] Optionally, the requester of the terminal positioning result may be the SL Reference UE or the application layer of the UE.

[0257] Optionally, in some embodiments the method further comprises:

[0258] Send SL positioning result information to the fourth device.

[0259] For example, in this embodiment, the fourth device may be a SL Reference UE, which is used to request the SL positioning result of the terminal. After the first device receives the SL positioning result sent by the second device, it sends the SL positioning result to the fourth device.

[0260] Optionally, in some embodiments, the first information includes supplementary RSPP information, and the first information also includes SL positioning result type and SL positioning service quality.

[0261] In an example, the first information is supplementary RSPP information, which includes identifier information for associating SL positioning interaction information between the first device and the second device. The first device also includes the SL positioning result type and the SL positioning service quality. Based on the SL positioning result type, the second device can feedback SL positioning result information of the corresponding type to the first device. It can also feedback SL positioning result information of corresponding accuracy to the first device based on the SL positioning service quality.

[0262] In some embodiments, the method further comprises:

[0263] receiving the first information sent by the fourth device; or,

[0264] The first information is obtained from the RSPP application layer of the first device.

[0265] For example, in this embodiment, the first device obtains the first information from the fourth device, or obtains the first information from the RSPP application layer of the first device.

[0266] In some embodiments, the method further comprises:

[0267] Identifier information is determined based on the first information.

[0268] For example, in this embodiment, after receiving the first information, the first device allocates corresponding identifier information based on the first information. This identifier information is used to associate all interaction information between the first device and the second device, or between the first device and the third device, during the SL positioning request process of the associated terminal. This identifier information can be new identifier information generated based on the first information, or it can be identifier information already in the first device that is used to identify the first device.

[0269] Optionally, in some embodiments, the method further comprises:

[0270] Based on the first information, a third device is determined.

[0271] For example, after receiving the first information, the first device may determine the third device within the coverage range of PC5 of the first device according to the terminal identifier indicated in the first information.

[0272] In some embodiments, the method further comprises:

[0273] Determining that neither the first device nor the third device supports the SL positioning service or determining that neither the first service network of the first device nor the third device supports the SL positioning service, and obtaining first sidechain positioning capability information of the first device and second sidechain positioning capability information of the third device;

[0274] The second device is determined from the first device and the third device according to the first side chain positioning capability information and the second side chain positioning capability information.

[0275] For example, when it is determined that neither the first device nor the third device supports the SL positioning service or it is determined that the first service network of the first device and the third device does not support the SL positioning service, it is determined that the first device and the third device are in UE-only Operation, in which the first device and the third device determine the SL positioning location information through PC5 communication. The first device obtains the side link capability information of the third device through PC5 communication, and determines the UE with SL positioning service function from the third device as the second device through the side link capability information.

[0276] In some embodiments, the step of “determining the second device from the first device and the third device based on the first sidechain positioning capability information and the second sidechain positioning capability information” includes:

[0277] Determining, based on the first side chain positioning capability information, that the first device does not support the SL positioning server function;

[0278] Based on the second side chain positioning capability information, the second device is determined from the third device, and the second device supports the SL positioning server function.

[0279] For example, when it is determined that the first device supports the SL positioning server function based on the first side link positioning capability information corresponding to the first device, the second device can be determined from the third devices based on the second side link positioning capability information corresponding to the second device, wherein the second device supports the SL positioning server function.

[0280] In some embodiments, the step of “determining the second device from the first device and the third device” includes:

[0281] determining that the second device is different from the first device;

[0282] According to the second SL positioning capability information, the second device is determined from the third device, and the second device supports the SL positioning server function.

[0283] For example, the first device selects a UE different from the first device from the third device as the third device, where the second device supports the SL positioning server function.

[0284] Optionally, in some embodiments, the first device is a terminal, and the method further includes:

[0285] receiving fifth information sent by the location management function LMF network element;

[0286] determining identifier information based on the fifth information;

[0287] The first information is generated based on the identifier information and the fifth information.

[0288] In some embodiments, the method is also applicable to scenarios where the UE is served by NG-RAN and absolute location information is provided by the LMF network element of the current service network. For example, in this scenario, the SL Positioning Server UE can be determined by the LMF network element, and the positioning result can be calculated by the SL Positioning Server UE. The SL Positioning Server UE can also be selected by the target UE connected to the LMF network element, wherein the selected SL Positioning Server UE can be used to calculate the positioning result, confirm the positioning method, distribute positioning assistance data, exchange positioning capabilities, and exchange Ranging / SL positioning measurement data / positioning response results.

[0289] In some embodiments, for a UE with a NAS (Non-Access Stratum) connection, the LMF network can assist in the SL positioning of the UE. In this case, the first device is a terminal connected to the LMF network element. For example, the LMF sends a location request message to UE1 (i.e., the target UE). UE1 (i.e., the target UE) can assign an identifier to the location request information (the identifier code can be an existing identifier or a new identifier code generated in response to the currently received location request information) to associate all positioning service interaction information between the UE and the SL Positioning Server UE, and use a supplementary RSPP signaling message to send a Ranging / SL positioning request containing the identifier to the selected SL Positioning Server UE.

[0290] Optionally, if the SL Positioning Server UE does not receive an identifier for identifying the location service from UE1, the SL Positioning Server UE may allocate an identifier to UE1 upon receiving a Ranging / SL positioning request from UE1 for use in identifying the location service between the SL Positioning Server UE and UE1. The identifier is included in the supplementary RSPP signaling between UE1 and the SL Positioning Server UE, and may also be carried in the supplementary RSPP signaling between UE1 and UEx-UEy to indicate the location service between the SL Positioning Server UE and UE1-UEy.

[0291] Optionally, in some embodiments, if the SL Positioning Server UE does not detect an identifier from UE1 in the positioning request information sent by UE1, the SL Positioning Server UE may allocate an identifier and include it in the supplementary RSPP signaling message of the SL Positioning Server UE.

[0292] In some embodiments, for network service SL positioning of UEs without NAS connection, the LMF sends a location information request to UE1. If neither UE1 nor the target UE allocates an identifier in the positioning request information, the SL Positioning Server UE may allocate an identifier to identify the positioning service between the SL Positioning Server UE and the target UE upon receiving the Ranging / SL positioning request from the target UE. The identifier is included in the supplementary RSPP signaling between the target UE and the SL Positioning Server UE, and may also be included in the supplementary RSPP signaling between the target UE and the SL Reference UE or positioning UE (including UE1).

[0293] In some embodiments, the method further comprises:

[0294] The second device is determined according to the fifth information.

[0295] For example, in a scenario where the UE is served by NG-RAN and absolute location information is provided by an LMF network element of the current serving network, when the first device receives the fifth information sent by the LMF network element, the first device determines the corresponding second device through the fifth information. For example, the fifth information sent by the LMF network element may indicate the corresponding second device; the first device may also use the fifth information as a reference to determine the corresponding second device through the PC5 interface.

[0296] In some embodiments, the second device includes a terminal, and the above step of sending the first information to the second device includes:

[0297] receiving the fifth information sent by the LMF network element;

[0298] Determining the identifier information and the terminal according to the fifth information;

[0299] generating first information according to the identifier information and the fifth information;

[0300] The first information is sent to the terminal, where the first information is used to instruct the terminal to send the first information to the second device.

[0301] For example, in this embodiment, the first device is a terminal connected to the LMF network element. After receiving the fifth information sent by the LMF network element, the first device assigns identifier information to the SL interaction information between the first device and the second device in response to the fifth information, and determines the corresponding terminal based on the fifth information. After generating the first information based on the identifier information and the fifth information, the first information is sent to the terminal. The first information is used to instruct the terminal to send the first information to the second device.

[0302] In some embodiments, for network-assisted SL positioning of UEs without NAS connections, the LMF connected to UE1 sends a location request message to UE1 (i.e., the SL Reference UE). UE1 (i.e., the SL Reference UE) may allocate a new identifier (or an existing identifier) ​​to associate all positioning interaction information between UE1 and the SL Positioning Server UE, and use a supplementary RSPP signaling message to send a Ranging / SL positioning request to the target UE. After receiving the Ranging / SL positioning request from UE1, the target UE sends a location request message containing the identifier to the selected SL Positioning Server UE.

[0303] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0304] In some embodiments, the terms "codebook," "codeword," and "precoding matrix" may be used interchangeably. For example, a codebook may be a collection of one or more codewords / precoding matrices.

[0305] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0306] In some embodiments, terms such as "synchronization signal (SS)", "synchronization signal block (SSB)", "reference signal (RS)", "pilot", and "pilot signal" can be used interchangeably.

[0307] In some embodiments, terms such as wireless access scheme and waveform may be used interchangeably.

[0308] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0309] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0310] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0311] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0312] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.

[0313] In the above manner, the first device sends the first information to the second device, the first information including the side link SL positioning request information of the terminal, the first information including identifier information, the identifier information being used to associate the SL positioning interaction information between the first device and the second device or the first device and the third device, and the second device being used to determine the SL positioning result information of the terminal based on the first information. Thus, by allocating an identifier for associating all location service interactions between UEs, the positioning service interaction information between UEs processed by the second device is distinguished, ensuring that the second device can simultaneously process positioning services between multiple UEs, avoiding confusion in positioning service processing in the second device, and improving the positioning processing performance of the second device.

[0314] The communication method according to the embodiments of the present disclosure may include at least one of steps S2101 to S2109. For example, step 2101 may be implemented as an independent embodiment, step 2102 may be implemented as an independent embodiment, steps 2101+2102 may be implemented as an independent embodiment, and steps 2101+2102+2103 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0315] In some embodiments, steps 2102 and 2103 may be executed in an exchanged order or simultaneously. Steps 2102 and 2103 may be executed in an exchanged order or simultaneously.

[0316] In some embodiments, steps 2102-2109 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0317] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0318] FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3 , the embodiment of the present disclosure relates to a communication method, which is executed by a first device and includes:

[0319] Step S3101: Send first information to the second device.

[0320] In some embodiments, the first information includes side link SL positioning request information of the terminal, and the first information includes identifier information, and the identifier information is used to associate SL positioning interaction information between the first device and the second device or the first device and the third device.

[0321] In some embodiments, the second device is used to determine the SL positioning result information of the terminal based on the first information.

[0322] In some embodiments, the SL positioning interaction information includes at least one of the following:

[0323] SL positioning request information;

[0324] first sidelink positioning capability information of the first device;

[0325] second side link positioning capability information of the third device;

[0326] SL measurement request information of the first device and / or the third device;

[0327] Sidelink positioning measurement data of the first device and / or the third device.

[0328] In some embodiments, the method further comprises:

[0329] receiving second information sent by a second device, where the second information includes identifier information;

[0330] Based on the second information, first sidelink positioning capability information of the first device is determined.

[0331] In some embodiments, the second information is carried via Service Layer Positioning Protocol (SLPP) information.

[0332] In some embodiments, the second information is carried via Supplementary Ranging / Sidelink Positioning Protocol (RSPP) information, and the method further includes:

[0333] Based on the supplementary RSPP information, third information is sent to the third device, where the third information is used to instruct the third device to feed back the second side link positioning capability information of the third device according to the third information, and the third information includes identifier information.

[0334] In some embodiments, the supplemental RSPP information includes application layer ID information of the third device.

[0335] In some embodiments, the method further comprises:

[0336] Send the first side link positioning capability information to the second device.

[0337] In some embodiments, the method further comprises:

[0338] Fourth information is sent to the second device, where the fourth information is used to indicate the first side link positioning capability information and the second side link positioning capability information, and the fourth information includes identifier information.

[0339] In some embodiments, the method further comprises:

[0340] Receive SL positioning assistance data sent by the second device, where the SL positioning assistance data is carried by supplementary RSPP information, and the supplementary RSPP information includes identifier information.

[0341] In some embodiments, the method further comprises:

[0342] receiving SL measurement request information sent by the second device, where the SL measurement request information is carried by supplementary RSPP information, and the supplementary RSPP information includes identifier information;

[0343] Generate sidelink positioning measurement data based on the SL measurement request information and the SL positioning assistance data;

[0344] The sidelink positioning measurement data is sent to the second device, where the sidelink positioning measurement data includes identifier information.

[0345] In some embodiments, the method further comprises:

[0346] The receiving device sends SL positioning result information, where the SL positioning result information is carried by supplementary RSPP information, and the supplementary RSPP information includes identifier information.

[0347] In some embodiments, the method further comprises:

[0348] Send SL positioning result information to the fourth device.

[0349] In some embodiments, the first information includes supplementary RSPP information, and the first information also includes SL positioning result type and SL positioning service quality.

[0350] In some embodiments, the method further comprises:

[0351] receiving the first information sent by the fourth device; or,

[0352] The first information is obtained from the RSPP application layer of the first device.

[0353] In some embodiments, the method further comprises:

[0354] Identifier information is determined based on the first information.

[0355] In some embodiments, the method further comprises:

[0356] Based on the first information, a third device is determined.

[0357] In some embodiments, the method further comprises:

[0358] Determining that neither the first device nor the third device supports the SL positioning service or determining that neither the first service network of the first device nor the third device supports the SL positioning service, and obtaining first sidechain positioning capability information of the first device and second sidechain positioning capability information of the third device;

[0359] The second device is determined from the first device and the third device according to the first side chain positioning capability information and the second side chain positioning capability information.

[0360] In some embodiments, the above steps of determining the second device from the first device and the third device based on the first sidechain positioning capability information and the second sidechain positioning capability information include:

[0361] Determining, based on the first side chain positioning capability information, that the first device does not support the SL positioning server function;

[0362] Based on the second side chain positioning capability information, the second device is determined from the third device, and the second device supports the SL positioning server function.

[0363] In some embodiments, the above steps of determining the second device from the first device and the third device include:

[0364] determining that the second device is different from the first device;

[0365] According to the second SL positioning capability information, the second device is determined from the third device, and the second device supports the SL positioning server function.

[0366] In some embodiments, the first device is a terminal, and the method further includes:

[0367] receiving fifth information sent by the location management function LMF network element;

[0368] determining identifier information based on the fifth information;

[0369] The first information is generated based on the identifier information and the fifth information.

[0370] In some embodiments, the method further comprises:

[0371] The second device is determined according to the fifth information.

[0372] In some embodiments, the second device includes a terminal, and the above step of sending the first information to the second device includes:

[0373] receiving the fifth information sent by the LMF network element;

[0374] Determining the identifier information and the terminal according to the fifth information;

[0375] generating first information according to the identifier information and the fifth information;

[0376] The first information is sent to the terminal, where the first information is used to instruct the terminal to send the first information to the second device.

[0377] In the embodiments of the present disclosure, the implementation of step S3101 can refer to the embodiments of the aforementioned steps S2101-S2109, which will not be repeated here.

[0378] In the above technical solution, a first message is sent to the second device, the first message including the terminal's side link SL positioning request information, the first message including identifier information, the identifier information being used to associate the SL positioning interaction information between the first device and the second device or between the first device and the third device, and the second device being used to determine the terminal's SL positioning result information based on the first information. Thus, by allocating an identifier for associating all location service interactions between UEs, the positioning service interaction information between UEs processed by the second device is distinguished, ensuring that the second device can simultaneously process positioning services between multiple UEs, avoiding confusion in positioning service processing in the second device, and improving the positioning processing performance of the second device.

[0379] FIG4 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4 , the embodiment of the present disclosure relates to a communication method, which is executed by a second device and includes:

[0380] Step S4101: Receive first information sent by a first device.

[0381] In some embodiments, the first information includes SL positioning request information of the terminal.

[0382] Step S4102: Send second information to the first device based on the first information.

[0383] In some embodiments, the second information includes identifier information, and the identifier information is used to associate SL positioning interaction information between the first device and the second device or the first device and the third device.

[0384] In some embodiments, the SL positioning interaction information includes at least one of the following:

[0385] SL positioning request information;

[0386] first side chain positioning capability information of the first device;

[0387] second side link positioning capability information of the third device;

[0388] SL measurement request information of the third device;

[0389] Sidelink positioning measurement data of the first device and / or the third device.

[0390] In some embodiments, the method further comprises:

[0391] Identifier information is determined based on the first information.

[0392] For example, in this embodiment, the second device may be a SL positioning service UE. When the second device receives the first information sent by the first device and determines that there is no identifier information in the first information, it may configure identifier information for the first information. The identifier information is used to associate all SL positioning service interactions between the first device and the second device. The identifier information may be new identifier information generated based on the first information, or it may be identifier information already existing in the second device for identifying the first device and the second device.

[0393] In some embodiments, the second information is carried via SLPP information or RSPP information.

[0394] In some embodiments, the method further comprises:

[0395] The SL positioning assistance data is sent to the first device, where the SL positioning assistance data is carried by the supplementary RSPP information, and the supplementary RSPP information includes identifier information.

[0396] In some embodiments, the method further comprises:

[0397] Sending SL measurement request information to the first device, where the SL measurement request information is carried by the supplementary RSPP information, and the supplementary RSPP information includes identifier information.

[0398] In some embodiments, the method further comprises:

[0399] The SL positioning result information is sent to the first device, where the SL positioning result information is carried by the supplementary RSPP information, and the supplementary RSPP information includes identifier information.

[0400] In the above technical solution, first information sent by the first device is received, where the first information includes SL positioning request information of the terminal;

[0401] Based on the first information, second information is sent to the first device, where the second information includes identifier information, and the identifier information is used to associate SL positioning interaction information between the first device and the second device, or between the first device and the third device. Thus, by allocating an identifier for associating all location service interactions between UEs, positioning service interaction information between UEs processed by the second device is distinguished, ensuring that the second device can simultaneously process positioning services between multiple UEs, avoiding confusion in positioning service processing in the second device, and improving the positioning processing performance of the second device.

[0402] FIG5 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG5 , the embodiment of the present disclosure relates to a communication method, and the method includes:

[0403] For example, in this embodiment, a positioning service solution involving SL Positioning Server UE is provided, so that SL Positioning Server UE can associate SL positioning interaction information with SL positioning request information, so that SL Positioning Server UE can process multiple positioning services at the same time, avoiding the problem of SL positioning service process disorder caused by the inability of SL Positioning Server UE to identify multiple SL interaction information between different UEs when performing positioning service processing. It should be noted that in this embodiment, the definitions of related names such as SL Reference UE, SL Positioning Client UE, SL Positioning Server UE, Target UE, etc. are the same as those in the above embodiment, and can be referred to the above embodiment, and will not be repeated here.

[0404] In some embodiments, the method is divided into two application scenarios. When UE1-UEn receiving SL positioning request information are not served by NG-RAN or the current service network does not support the Ranging / SL Positioning function, it is determined that the current operating modes of UE1-UEn are all UE-only Operation. For the UE1-UEn, an identifier for associating all SL positioning interaction information between UEs can be allocated in the following manner: the UE (such as the target UE, SL Reference UE or positioning UE) allocates an identifier for the positioning service request information before sending the first message for positioning service interaction information to the SL Positioning Server UE. Through this identifier, all interaction information for positioning service between the UE and the SL Positioning Server UE can be associated. For example, based on the UE's device ID information, an identifier can be configured for the positioning request information sent by the UE to the SL Positioning Server UE, and the identifier is used to associate all positioning interaction information between the UE and the SL Positioning Server UE; an identifier can also be allocated for the positioning interaction information of the UE in the SL Positioning Server UE. For example, when the SL Positioning Server UE receives the positioning request information sent by the UE, it allocates an identifier for the positioning request information to associate all location service interaction information between the SL Positioning Server UE and the UE.

[0405] Optionally, the method is also applicable to scenarios where the UE is served by NG-RAN and absolute location information is provided by the LMF network element of the NG-RAN network. For example, in this scenario, the SL Positioning Server UE can be determined by the LMF network element, and the positioning result can be calculated by the SL Positioning Server UE. The SL Positioning Server UE can also be selected by the target UE connected to the LMF network element, wherein the selected SL Positioning Server UE can be used for positioning result calculation, positioning method confirmation, positioning assistance data distribution, positioning capability exchange, and Ranging / SL positioning measurement data / positioning response result exchange, etc.

[0406] In some embodiments, for a UE with a NAS (Non-Access Stratum) connection, the LMF network can assist in the SL positioning of the UE. For example, the LMF sends a location request message to UE1 (i.e., the target UE). UE1 (i.e., the target UE) can assign an identifier to the location request message (the identifier code can be an existing identifier or a new identifier code generated in response to the currently received location request information) to associate all positioning service interaction information between the UE and the SL Positioning Server UE, and use a supplementary RSPP signaling message to send a Ranging / SL positioning request containing the identifier to the selected SL Positioning Server UE.

[0407] Optionally, if the SL Positioning Server UE does not receive an identifier for identifying the location service from UE1, the SL Positioning Server UE may allocate an identifier to UE1 upon receiving a Ranging / SL positioning request from UE1 for use in identifying the location service between the SL Positioning Server UE and UE1. The identifier is included in the supplementary RSPP signaling between UE1 and the SL Positioning Server UE, and may also be carried in the supplementary RSPP signaling between UE1 and UEx-UEy to indicate the location service between the SL Positioning Server UE and UE1-UEy.

[0408] In some embodiments, for network-assisted SL positioning of UEs without NAS connections, the LMF connected to UE1 sends a location request message to UE1 (i.e., the SL Reference UE). UE1 (i.e., the SL Reference UE) may allocate a new identifier (or an existing identifier) ​​to associate all positioning interaction information between UE1 and the SL Positioning Server UE, and use a supplementary RSPP signaling message to send a Ranging / SL positioning request to the target UE. After receiving the Ranging / SL positioning request from UE1, the target UE sends a location request message containing the identifier to the selected SL Positioning Server UE.

[0409] Optionally, in some embodiments, if the SL Positioning Server UE does not detect an identifier from UE1 in the positioning request information sent by UE1, the SL Positioning Server UE may allocate an identifier and include it in the supplementary RSPP signaling message of the SL Positioning Server UE.

[0410] In some embodiments, if neither UE1 nor the target UE allocates an identifier in the positioning request information, the SL Positioning Server UE may allocate an identifier to identify the positioning service between the SL Positioning Server UE and the target UE upon receiving the Ranging / SL positioning request from the target UE. The identifier is included in the supplementary RSPP signaling between the target UE and the SL Positioning Server UE, and may also be included in the supplementary RSPP signaling between the target UE and the SL Reference UE or positioning UE (including UE1).

[0411] As shown in FIG5 , the communication method is applicable when UE1-UEn are all in UE-only operation mode. The communication method includes the following steps:

[0412] 1. UE1 (including target UE or SL Reference UE) can receive Ranging / SL positioning service requests from the following devices:

[0413] 1a. During the ranging / SL positioning service via the PC5 interface, the SL Positioning Client UE sends a Ranging / SL positioning service request via the PC5;

[0414] 1b. RSPP application layer of UE1.

[0415] For example, in some embodiments, the Ranging / SL positioning service request includes the ID information of the target UE, and UE1 searches for the target UE within the communication range of UE1 according to the ID information.

[0416] 2. Discover UE2-UEn (i.e., SL Reference UE / Positioning UE) within the coverage of UE1, where UE2-UEn includes the SL Reference UE, the Located UE, and the target UE. For example, in some embodiments, the Ranging / SL Positioning Service Request includes a candidate UE sequence, and UE1 can determine UE2-UEn from within the coverage based on the PC5 interface based on the candidate UE sequence.

[0417] 3. If neither UE1 nor UEn is served by NG-RAN or the current serving network does not support Ranging / SL Positioning, it is determined that the current operating modes of UE1-UEn are both UE-only Operation.

[0418] 4. UE1 and UE2-UEn exchange SL positioning service capabilities, and UE2-UEn reports the corresponding SL positioning service capabilities to UE1 through the PC5 interface. This step can also be completed in step 7 under the coordination of the SL Positioning Server UE.

[0419] 5. If UE1 does not support the SL Positioning Server function or UE1 selects a different SL Positioning Server UE from UE1, that is, UE1 cannot serve as the SL Positioning Server UE, it will discover and select a UE from UE2-UEn as the SL Positioning Server UE (co-located with the SL Reference UE / Located UE or performed by a separate UE). If the SL Positioning Server UE is co-located with the SL Reference UE / Target UE or operated by a separate UE, UE1 discovers and selects the SL Positioning Server UE, and a secure PC5 link is established between UE1 and the selected SL Positioning Server UE, and SL positioning service interaction is performed based on the PC5 link.

[0420] For example, in some embodiments, if the positioning UE is provided with network services by NG-RAN, the absolute location information of the UE1 can be obtained using the 5GC-MO-LR (5G Core Network Mobile Originated Location Request) process in the NG-RAN network service.

[0421] 6. If the SL Positioning Server UE is selected in the above steps, UE1 will use the supplementary RSPP signaling message to send a Ranging / SL positioning request to the selected SL Positioning Server UE. The request uses the application layer ID to indicate other UE2-UEn, and indicates the type of positioning result of the required Ranging / SL positioning request (such as absolute position, relative position, or distance and direction between paired UEs). The supplementary RSPP signaling also describes the QoS (Quality of Service) required for Ranging / SL positioning. For example, in this embodiment, the RSPP signaling message is allocated with identifier information or identification information by UE1, and the identifier or identification information is used to identify all location service interaction information between UE1 and the SL Positioning Server UE, so that the SL Positioning Server UE can distinguish the location service interaction information between it and UE1 from the location service interaction information between other UEs based on the identifier or identification information.

[0422] 7. The SL Positioning Server UE uses an SLPP message to send UE1's capability request information, and uses supplementary RSPP signaling (for example, including the SL Positioning capability request for UE2-UEn in the SLPP container) to send UE2-UEn's capability request to UE1, and attaches the corresponding application layer ID information of UE2-UEn. UE1 responds to the SL Positioning Server UE with its own capabilities using an SLPP message, and responds to the capabilities of UE2-UEn using a supplementary RSPP signaling message, wherein the supplementary RSPP signaling message carries the ID information of the application layer corresponding to UE2-UEn. For example, in some embodiments, if step 4 does not occur, UE1 uses an SLPP message in this step to obtain the positioning capability information of UE2-UEn.

[0423] For example, in some embodiments, the SL Positioning Server UE may select UEx-UEy for communication interaction from UE2-UEn based on the positioning capability information of UE1-UEn reported by UE1, for subsequent SL positioning / ranging operations, where UEx-UEy are UEs that support Ranging / SL positioning.

[0424] For example, in this embodiment, if an identifier for identifying the location service between UE1 and SL Positioning Server UE is received from UE1, the identifier may be included in the supplementary RSPP signaling between UE1 and SL Positioning Server UE. If no identifier for identifying the location service is received from UE1, when the SL Positioning Server UE receives the positioning request information sent by UE1, the SL Positioning Server UE allocates an identifier or identification information for identifying all location service interaction information between it and UE1, and the identifier may be included in the supplementary RSPP signaling between UE1 and SL Positioning Server UE.

[0425] 8. The SL Positioning Server UE provides SL positioning assistance data to UE1. For example, in some embodiments, the SL positioning assistance data used by UE1 can be transmitted via SLPP messages. For the SL positioning assistance data used by UEx-UEy, a supplementary RSPP signaling message can be used for transmission, and the ID information of the corresponding application layer of UEx-UEy can be carried in the RSPP message. Then, based on the ID information of UEx-UEy, UE1 sends the SL positioning assistance data of UEx-UEy to the corresponding UEx-UEy via SLPP message. For example, in the steps of this embodiment, the supplementary RSPP signaling between UE1 and the SL Positioning Server UE includes an identifier for identifying the positioning service. Optionally, the identifier or identification information can also be included in the SLPP message between UE1 and UEx-UEy.

[0426] 9. When the SL Positioning Server UE performs the positioning result calculation, the SL Positioning Server UE will send the SL measurement request information of UE1 and UEx-UEy to UE1. The SL measurement request information of UE1 is carried by the SLPP message. The SL measurement request information of UEx-UEy is carried by a supplementary RSPP signaling message with the application layer ID corresponding to UEx-UEy. In addition, the SL Positioning Server UE can also use the supplementary RSPP signaling message with the application layer ID corresponding to UEx-UEy to request the absolute position information of UEx-UEy from UE1, and UE1 requests the absolute position from UEx-UEy based on the supplementary RSPP signaling message. For example, in the steps of this embodiment, an identifier for identifying the positioning service can be included in the supplementary RSPP signaling between UE1 and the SL Positioning Server UE. The identifier or identification information can also be included in the SLPP message between UE1 and UEx-UEy.

[0427] 10. SL-PRS (SL-Positioning Reference Signal) measurement is performed between UE1 and UEx-UEy, and may also be performed between UEx-UEy. If the SL Positioning Server UE makes a measurement request in step 9, UE1 requests SL measurement information from UEx-UEy through an SLPP message, and / or requests the absolute position information of UEx-UEy from UEx-UEy through a supplementary RSPP signaling message. If UE1 supports the SL positioning server function and UE1 does not select the SL Positioning Server UE in step 5 (the SL Positioning Server UE is different from UE1), the SL-PRS measurement data of UEx-UEy will be transmitted to UE1. For example, in the steps of this embodiment, the supplementary RSPP signaling between UE1 and the SL Positioning Server UE contains an identifier for identifying the positioning service, and the supplementary RSPP signaling between UE1 and UEx-UEy may also use the identifier or identification information to identify the positioning service data interaction between UE1 and UEx-UEy.

[0428] 11. Transmit UE1's SL-PRS measurement data to the SL Positioning Server UE via an SLPP message. If a measurement / SL positioning request is made in step 9, UE1 transmits the SL-PRS measurement data of UEx-UEy to the SL Positioning Server UE using a supplementary RSPP signaling message, so that the SL Positioning Server UE calculates the positioning measurement result using the SL-PRS measurement data. UE1 transmits the absolute position of UEx-UEy to the SL Positioning Server UE via a supplementary RSPP signaling message. For example, the supplementary RSPP signaling message carries the ID information of the application layer corresponding to UEx-UEy. For example, in the steps of this embodiment, the supplementary RSPP signaling between UE1 and the SL Positioning Server UE includes an identifier or identification information for identifying the positioning service.

[0429] 12. Based on the positioning result type received in step 6 (such as UE absolute position, UE relative position, or distance and direction between paired UEs), calculate the SL positioning result on the SL Positioning Server UE, and the SL positioning result matches the positioning result type.

[0430] 13. After the SL Positioning Server UE determines the SL positioning result, it uses a supplementary RSPP signaling message to send a Ranging / SL Positioning Response to UE1. Illustratively, the Ranging / SL Positioning Response includes the positioning result information required in step 6. Illustratively, in the steps of this embodiment, the supplementary RSPP signaling between UE1 and the SL Positioning Server UE that includes the Ranging / SL Positioning Response information includes an identifier or identification information for identifying the positioning service.

[0431] 14. UE1 sends the received Ranging / SL Positioning Response to the corresponding terminal that requested the positioning. For example, when requesting the Ranging / SL positioning service through PC5, UE1 sends the Ranging / SL Positioning Response to the SL Positioning Client UE through PC5. If UE1 is the positioning message requester, UE1 sends the Ranging / SL Positioning Response to the corresponding application layer of UE1.

[0432] Through the above method, a positioning service solution involving SL Positioning Server UE is proposed, in which an identifier for associating all location service interactions between UEs is allocated by the target UE, SL Positioning Server UE or SL Reference UE. The identifier is included in the continuous interaction information between the SL Positioning Server UE and the UE (such as the target UE, SL Reference UE or positioning UE), wherein the identifier can be newly allocated or the existing identifier of the UE. Thus, the positioning service interaction information between multiple UEs processed simultaneously by the SL Positioning Server UE is distinguished by the identifier, so as to ensure that the SL Positioning Server UE can process positioning services between multiple UEs simultaneously, thereby improving the positioning processing performance of the SL Positioning Server UE.

[0433] Figure 6 is a structural diagram of the first device proposed in an embodiment of the present disclosure. As shown in Figure 6, the first device 6100 may include: a first transceiver module 6101. In some embodiments, the above-mentioned first transceiver module 6101 is configured to send a first message to the second device, the first information including the side link SL positioning request information of the terminal, the first information including identifier information, the identifier information is used to associate the SL positioning interaction information between the first device and the second device or the first device and the third device, and the second device is used to determine the SL positioning result information of the terminal based on the first information. Optionally, the above-mentioned first transceiver module 6101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the first device in any of the above methods, which will not be repeated here.

[0434] In some embodiments, the first transceiver module 6101 may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transmitting module and the receiving module may be interchangeable with the transceiver.

[0435] Figure 7 is a structural diagram of the second device proposed in an embodiment of the present disclosure. As shown in Figure 7, the second device 7100 may include: a second transceiver module 7101 and a third transceiver module 7102. In some embodiments, the second transceiver module 7101 is configured to receive first information sent by the first device, the first information including the SL positioning request information of the terminal, and the third transceiver module 7102 is configured to send second information to the first device based on the first information, the second information including identifier information, and the identifier information is used to associate the SL positioning interaction information between the first device and the second device or the first device and the third device. Optionally, the transceiver module 7101 is used to perform at least one of the communication steps such as sending and / or receiving performed by the second device in any of the above methods, which will not be repeated here.

[0436] In some embodiments, the second transceiver module 7101 may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0437] In some embodiments, the third transceiver module 7102 may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transmitting module and the receiving module may be interchangeable with the transceiver.

[0438] Figure 8 is a schematic diagram of the structure of a communication device 8100 according to an embodiment of the present disclosure. Communication device 8100 can be a second device (e.g., an access network device, a core network device, etc.), or a first device (e.g., a user device, etc.), or a chip, chip system, or processor that supports the second device in implementing any of the above methods, or a chip, chip system, or processor that supports the first device in implementing any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0439] As shown in Figure 8, the communication device 8100 includes one or more third processors 8101. The third processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 8100 is used to perform any of the above methods. Optionally, one or more third processors 8101 are used to call instructions to cause the communication device 8100 to perform any of the above methods.

[0440] In some embodiments, the communication device 8100 further includes one or more third transceivers 8102. When the communication device 8100 includes one or more third transceivers 8102, the third transceiver 8102 performs at least one of the communication steps, such as sending and / or receiving, in the above method, and the third processor 8101 performs at least one of the other steps. In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be interchangeable, the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be interchangeable, and the terms receiver, receiving unit, receiver, and receiving circuit may be interchangeable.

[0441] In some embodiments, the communication device 8100 further includes one or more third memories 8103 for storing data. Alternatively, all or part of the third memories 8103 may be located outside the communication device 8100. In an alternative embodiment, the communication device 8100 may include one or more first interface circuits 8104. Optionally, the first interface circuit 8104 is connected to the third memories 8103. The first interface circuit 8104 may be configured to receive data from the third memories 8103 or other devices, and to send data to the third processor 8101 or other devices. For example, the first interface circuit 8104 may read data stored in the third memories 8103 and send the data to the third processor 8101.

[0442] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG8 . The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0443] FIG9 is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG9 , but the present invention is not limited thereto.

[0444] The chip 8200 includes one or more fourth processors 8201. The chip 8200 is configured to execute any one of the above methods.

[0445] In some embodiments, the chip 8200 further includes one or more second interface circuits 8202. The terms interface circuit, interface, and transceiver pins are optionally interchangeable. In some embodiments, the chip 8200 further includes one or more fourth memories 8203 for storing data. Optionally, all or part of the fourth memories 8203 may be located external to the chip 8200. Optionally, the second interface circuit 8202 is connected to the fourth memory 8203. The second interface circuit 8202 can be used to receive data from the fourth memory 8203 or other devices, or to send data to the fourth memory 8203 or other devices. For example, the second interface circuit 8202 can read data stored in the fourth memory 8203 and send the data to the fourth processor 8201.

[0446] In some embodiments, the second interface circuit 8202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the second interface circuit 8202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the second interface circuit 8202 performs data exchange between the fourth processor 8201, the chip 8200, the fourth memory 8203, or the transceiver device. In some embodiments, the fourth processor 8201 performs at least one of the other steps.

[0447] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0448] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0449] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0450] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A communication method, characterized in that, Performed by a first device, the method includes: Sending first information to a second device, the first information including sidelink (SL) positioning request information of a terminal, the first information including identifier information for associating SL positioning interaction information between the first device and the second device or between the first device and a third device, and the second device being configured to determine SL positioning result information of the terminal based on the first information.

2. The method according to claim 1, characterized in that, The SL positioning interaction information includes at least one of the following: The SL positioning request information; First sidelink positioning capability information of the first device; Second sidelink positioning capability information of the third device; SL measurement request information of the first device and / or the third device; Sidelink positioning measurement data of the first device and / or the third device.

3. The method according to claim 1, characterized in that, The method further includes: Receiving second information sent by the second device, the second information including the identifier information; Determining first sidelink positioning capability information of the first device based on the second information.

4. The method according to claim 3, characterized in that, The second information is carried by service layer positioning protocol (SLPP) information.

5. The method according to claim 3, characterized in that The second information is carried by supplementary ranging / sidelink positioning protocol (RSPP) information, and the method further includes: Sending third information to the third device based on the supplementary RSPP information, the third information being used to instruct the third device to feedback second sidelink positioning capability information of the third device according to the third information, and the third information including the identifier information.

6. The method according to claim 5, wherein The supplementary RSPP information includes application layer ID information of the third device.

7. The method according to claim 3, characterized in that The method further includes: Sending the first sidelink positioning capability information to the second device.

8. The method according to claim 5, wherein The method further includes: Sending fourth information to the second device, the fourth information being used to indicate the first sidelink positioning capability information and the second sidelink positioning capability information, and the fourth information including the identifier information.

9. The method according to claim 7 or 8, characterized in that, The method further includes: Receiving sidelink positioning assistance data sent by the second device, the sidelink positioning assistance data being carried by supplementary RSPP information, and the supplementary RSPP information including the identifier information.

10. The method according to claim 9, wherein The method further includes: Receiving sidelink measurement request information sent by the second device, the sidelink measurement request information being carried by supplementary RSPP information, and the supplementary RSPP information including the identifier information; Generating sidelink positioning measurement data according to the sidelink measurement request information and the sidelink positioning assistance data; Sending the sidelink positioning measurement data to the second device, the sidelink positioning measurement data including the identifier information.

11. The method according to claim 10, wherein The method further includes: Receiving the sidelink positioning result information sent by the second device, the sidelink positioning result information being carried by supplementary RSPP information, and the supplementary RSPP information including the identifier information.

12. The method according to claim 11, wherein The method further includes: Sending the sidelink positioning result information to a fourth device.

13. The method according to any one of claims 1 to 12, characterized in that The first information includes supplementary RSPP information, and the first information further includes sidelink positioning result type and sidelink positioning service quality.

14. The method according to claim 1, characterized in that, The method further includes: Receive the first information sent by the fourth device; or, Obtain the first information from the RSPP application layer of the first device.

15. The method according to claim 14, wherein The method further includes: Determine the identifier information according to the first information.

16. The method according to claim 1, wherein The method further includes: Determine the third device based on the first information.

17. The method according to claim 14, characterized in that The method further includes: Determine that neither the first device nor the third device supports the SL positioning service or determine that the first service networks of the first device and the third device do not support the SL positioning service, and obtain the first sidelink positioning capability information of the first device and the second sidelink positioning capability information of the third device; Determine the second device from the first device and the third device according to the first sidelink positioning capability information and the second sidelink positioning capability information.

18. The method according to claim 17, wherein The determining the second device from the first device and the third device according to the first sidelink positioning capability information and the second sidelink positioning capability information includes: Determine that the first device does not support the SL positioning server function according to the first sidelink positioning capability information; Determine the second device from the third device based on the second sidelink positioning capability information, and the second device supports the SL positioning server function.

19. The method according to claim 17, characterized in that, The determining the second device from the first device and the third device includes: Determine that the second device is different from the first device; Determine the second device from the third device according to the second SL positioning capability information, and the second device supports the SL positioning server function.

20. The method according to claim 1, wherein The first device is the terminal, and the method further includes: Receive the fifth information sent by the Location Management Function (LMF) network element; Determine the identifier information based on the fifth information; Generate the first information according to the identifier information and the fifth information.

21. The method according to claim 20, wherein The method further includes: Determine the second device according to the fifth information.

22. The method according to claim 1, characterized in that, The second device includes the terminal, and the sending the first information to the second device includes: Receive the fifth information sent by the LMF network element; Determine the identifier information and the terminal according to the fifth information; Generate the first information according to the identifier information and the fifth information; Send the first information to the terminal, and the first information is used to instruct the terminal to send the first information to the second device.

23. A communication method, characterized in that, Executed by the second device, the method includes: Receive the first information sent by the first device, and the first information includes the SL positioning request information of the terminal; Send the second information to the first device based on the first information, and the second information includes the identifier information, and the identifier information is used to associate the SL positioning interaction information between the first device and the second device or between the first device and the third device.

24. The method according to claim 23, wherein The SL positioning interaction information includes at least one of the following: The SL positioning request information; The first sidelink positioning capability information of the first device; The second sidelink positioning capability information of the third device; The SL measurement request information of the third device; The sidelink positioning measurement data of the first device and / or the third device.

25. The method according to claim 23, wherein The method further includes: Determine the identifier information according to the first information.

26. The method according to claim 23, characterized in that, The second information is carried by SLPP information or RSPP information.

27. The method according to claim 23, wherein The method further includes: Send SL positioning assistance data to the first device, where the SL positioning assistance data is carried by supplementary RSPP information, and the supplementary RSPP information includes the identifier information.

28. The method according to claim 23, wherein The method further includes: Send an SL measurement request message to the first device, where the SL measurement request message is carried by supplementary RSPP information, and the supplementary RSPP information includes the identifier information.

29. The method according to claim 23, characterized in that, The method further includes: Send SL positioning result information to the first device, where the SL positioning result information is carried by supplementary RSPP information, and the supplementary RSPP information includes the identifier information.

30. A communication method, characterized in that, The method includes: A first device sends first information to a second device, where the first information includes side link (SL) positioning request information of a terminal. Based on the first information, the second device sends second information to the first device, where the first information and / or the second information includes identifier information, and the identifier information is used to associate SL positioning interaction information between the first device and the second device or between the first device and a third device. The second information includes identifier information.

31. A first device, characterized in that, Includes: A first transceiver module, configured to send first information to a second device, where the first information includes side link (SL) positioning request information of a terminal, the first information includes identifier information, and the identifier information is used to associate SL positioning interaction information between the first device and the second device or between the first device and a third device. The second device is used to determine the SL positioning result information of the terminal according to the first information.

32. A second device, characterized in that, Includes: A second transceiver module, configured to receive first information sent by a first device, where the first information includes SL positioning request information of a terminal. A third transceiver module, configured to send second information to the first device based on the first information, where the second information includes identifier information, and the identifier information is used to associate SL positioning interaction information between the first device and the second device or between the first device and a third device.

33. A first device, characterized in that, Includes: One or more processors; Wherein, the terminal is used to execute the communication method according to any one of claims 1-22.

34. A second device, characterized in that, Includes: One or more processors; Wherein, the network device is used to execute the communication method according to any one of claims 23-29.

35. A communication system, characterized in that, Includes a first device and a second device, where the first device is configured to implement the communication method according to any one of claims 1-22, and the second device is configured to implement the communication method according to any one of claims 23-29.

36. A storage medium, the storage medium stores instructions, characterized in that, When the instruction runs on a communication device, it causes the communication device to execute the communication method according to any one of claims 1-22 or causes the communication device to execute the communication method according to any one of claims 23-29.

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