Information indication method and device, communication equipment and storage medium

Abstract

The embodiment of the invention provides an information indication method and device, communication equipment and a storage medium. The method comprises the following steps: selecting a second network element to obtain a selection result; wherein the selection result indicates one of the following: the first network element selects the appropriate second network element; the first network element does not select the appropriate second network element; based on the selection result, determining a positioning mode for ranging or sidelink SL positioning of the first terminal; wherein the positioning mode comprises one of the following modes: a first mode of executing SL positioning based on the terminal; and executing a second mode of SL positioning based on the network. Thus, the positioning mode can adapt to the selection result of the second network element, the positioning mode is more flexible, and the positioning of the terminal can be more reliable and accurate.

Description

Information indication method, device, communication equipment and storage medium Technical Field

[0001] The present disclosure relates to the field of wireless communication technology but is not limited to the field of wireless communication technology, and in particular to an information indication method, apparatus, communication equipment, and storage medium. Background Art

[0002] In wireless communication positioning technology, in one positioning scenario, the Access and Mobility Management Function (AMF) supports the selection of the Location Management Function (LMF). The LMF is used for target terminal position estimation, ranging between the target terminal and a sidelink (SL) reference terminal, or SL positioning.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure disclose an information indication method, apparatus, communication equipment, and storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, an information indication method is provided, wherein the method is performed by a first network element and includes:

[0006] Selecting a second network element to obtain a selection result; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element;

[0007] Based on the selection result, a positioning method for ranging or sidelink SL positioning of the first terminal is determined; wherein the positioning method includes one of the following: a first method based on performing SL positioning based on the terminal; a second method based on performing SL positioning based on the network.

[0008] According to a second aspect of an embodiment of the present disclosure, an information indication method is provided, wherein the method is performed by a second network element and includes:

[0009] receiving first information sent by a first network element;

[0010] The first information is used to request positioning of the first terminal based on a second method; the second method is a method of performing SL positioning based on the network.

[0011] According to a third aspect of an embodiment of the present disclosure, an information indication method is provided, wherein the method is performed by a first terminal and includes:

[0012] Sending first information to the first network element;

[0013] The first information is used to request positioning of the first terminal based on the second method; the second method is a method of performing SL positioning based on the network.

[0014] According to a fourth aspect of an embodiment of the present disclosure, there is provided an information indication device, wherein the device includes:

[0015] The selection module is configured to: select a second network element and obtain a selection result; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element;

[0016] The determination module is configured to: determine the positioning method for ranging or side link SL positioning of the first terminal based on the selection result; wherein the positioning method includes one of the following: a first method based on the terminal to perform SL positioning; a second method based on the network to perform SL positioning.

[0017] According to a fifth aspect of an embodiment of the present disclosure, there is provided an information indication device, wherein the device includes:

[0018] a receiving module, configured to receive first information sent by a first network element;

[0019] The first information is used to request positioning of the first terminal based on a second method; the second method is a method of performing SL positioning based on the network.

[0020] According to a sixth aspect of an embodiment of the present disclosure, there is provided an information indication device, wherein the device includes:

[0021] a sending module, configured to send first information to the first network element;

[0022] The first information is used to request positioning of the first terminal based on the second method; the second method is a method of performing SL positioning based on the network.

[0023] According to the seventh aspect of the embodiments of the present disclosure, an information indication system is provided, which includes a first network element, a second network element and a terminal; wherein the first network element is configured as an information indication method executed by any of the first network elements in the embodiments of the present disclosure; the second network element is configured as an information indication method executed by any of the second network elements in the embodiments of the present disclosure, and the terminal is configured as an information indication method executed by any of the terminals in the embodiments of the present disclosure.

[0024] According to an eighth aspect of an embodiment of the present disclosure, a communication device is provided, including:

[0025] processor;

[0026] a memory for storing instructions executable by the processor;

[0027] The processor is configured to implement the method described in any embodiment of the present disclosure when running the executable instructions.

[0028] According to a ninth aspect of an embodiment of the present disclosure, a computer storage medium is provided, wherein the computer storage medium stores a computer executable program, and when the executable program is executed by a processor, the method described in any embodiment of the present disclosure is implemented.

[0029] In an embodiment of the present disclosure, a second network element is selected to obtain a selection result; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element; based on the selection result, a positioning method for ranging or sidelink SL positioning of the first terminal is determined; wherein the positioning method includes one of the following: a first method based on terminal-based SL positioning; a second method based on network-based SL positioning. Here, the positioning method for ranging or sidelink SL positioning of the first terminal can be determined based on the selection result of the second network element. In this way, when a suitable second network element is selected, the first method can be used to position the terminal; or, when a suitable second network element is not selected, the second method can be used to position the terminal. In this way, the positioning method can adapt to the selection result of the second network element, and the positioning method is more flexible and can make the positioning of the terminal more reliable and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Fig. 1 is a schematic structural diagram showing a wireless communication system according to an exemplary embodiment.

[0031] Fig. 2 is a schematic flow chart showing an information indication method according to an exemplary embodiment.

[0032] Fig. 3 is a schematic flow chart showing an information indication method according to an exemplary embodiment.

[0033] Fig. 4 is a schematic flow chart showing an information indication method according to an exemplary embodiment.

[0034] Fig. 5 is a schematic flow chart showing an information indication method according to an exemplary embodiment.

[0035] Fig. 6 is a schematic flow chart showing an information indication method according to an exemplary embodiment.

[0036] Fig. 7 is a schematic flow chart showing an information indication method according to an exemplary embodiment.

[0037] Fig. 8 is a schematic flow chart showing an information indication method according to an exemplary embodiment.

[0038] Fig. 9 is a schematic flow chart showing an information indication method according to an exemplary embodiment.

[0039] Fig. 10 is a schematic flow chart showing an information indication method according to an exemplary embodiment.

[0040] Fig. 11 is a schematic flow chart showing an information indication method according to an exemplary embodiment.

[0041] Fig. 12 is a schematic flow chart showing an information indication method according to an exemplary embodiment.

[0042] Fig. 13 is a schematic flow chart showing an information indication method according to an exemplary embodiment.

[0043] Fig. 14 is a schematic flow chart showing an information indication method according to an exemplary embodiment.

[0044] Fig. 15 is a schematic flow chart showing an information indication method according to an exemplary embodiment.

[0045] Fig. 16 is a schematic diagram of an information indicating device according to an exemplary embodiment.

[0046] Fig. 17 is a schematic diagram showing an information indicating device according to an exemplary embodiment.

[0047] Fig. 18 is a schematic diagram of an information indicating device according to an exemplary embodiment.

[0048] Fig. 19 is a schematic structural diagram of a terminal according to an exemplary embodiment.

[0049] Fig. 20 is a block diagram of a base station according to an exemplary embodiment. DETAILED DESCRIPTION

[0050] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0051] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present disclosure. The singular forms "a," "an," and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0052] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0053] For the purpose of brevity and ease of understanding, the terms "greater than" or "less than" are used herein to describe magnitude relationships. However, those skilled in the art will understand that the term "greater than" also encompasses the meaning of "greater than or equal to," and "less than" also encompasses the meaning of "less than or equal to."

[0054] In related technologies, the terminal can be positioned according to a network-based SL positioning method or a terminal-based SL positioning method.

[0055] Please refer to Figure 1, which shows a schematic diagram of the structure of a wireless communication system provided by an embodiment of the present disclosure. As shown in Figure 1, the wireless communication system is a communication system based on mobile communication technology, and the wireless communication system may include: a plurality of user equipments 110 and a plurality of base stations 120.

[0056] The user device 110 may be a device that provides voice and / or data connectivity to a user. The user device 110 may communicate with one or more core networks via a radio access network (RAN). The user device 110 may be an Internet of Things user device, such as a sensor device, a mobile phone, and a computer with an Internet of Things user device. For example, the user device 110 may be a fixed, portable, pocket-sized, handheld, computer-built-in, or vehicle-mounted device. For example, a station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote user device, an access terminal, a user terminal, a user agent, a user device, or user equipment. Alternatively, the user device 110 may be a device of an unmanned aerial vehicle. Alternatively, the user device 110 may be an in-vehicle device, such as a driving computer with wireless communication capabilities, or a wireless user device connected to an external driving computer. Alternatively, the user equipment 110 may also be a roadside device, for example, a street lamp, a traffic light, or other roadside device with a wireless communication function.

[0057] The base station 120 may be a network-side device in a wireless communication system. The wireless communication system may be a fourth-generation mobile communication technology (4G) system, also known as a long-term evolution (LTE) system; or, the wireless communication system may be a 5G system, also known as a new air interface system or a 5G NR system. Alternatively, the wireless communication system may be a next-generation system of the 5G system. The access network in the 5G system may be referred to as a New Generation-Radio Access Network (NG-RAN).

[0058] Among them, the base station 120 can be an evolved base station (eNB) adopted in a 4G system. Alternatively, the base station 120 can also be a base station (gNB) adopting a centralized distributed architecture in a 5G system. When the base station 120 adopts a centralized distributed architecture, it usually includes a centralized unit (CU) and at least two distributed units (DU). The centralized unit is provided with a protocol stack of a packet data convergence protocol (PDCP) layer, a radio link layer control protocol (RLC) layer, and a media access control (MAC) layer; the distributed unit is provided with a physical (PHY) layer protocol stack. The embodiment of the present disclosure does not limit the specific implementation method of the base station 120.

[0059] A wireless connection can be established between the base station 120 and the user equipment 110 via a wireless air interface. In various implementations, the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; or, the wireless air interface can also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.

[0060] In some embodiments, E2E (End to End) connections may also be established between user devices 110. For example, in vehicle-to-everything (V2X) communication scenarios such as V2V (vehicle to vehicle), V2I (vehicle to infrastructure), and V2P (vehicle to pedestrian).

[0061] Here, the above user equipment can be considered as the terminal equipment in the following embodiments.

[0062] In some embodiments, the wireless communication system may further include a network management device 130 .

[0063] Several base stations 120 are respectively connected to a network management device 130. The network management device 130 may be a core network device in a wireless communication system. For example, the network management device 130 may be a mobility management entity (MME) in an evolved packet core (EPC). Alternatively, the network management device may be other core network devices, such as a serving gateway (SGW), a public data network gateway (PGW), a policy and charging rules function (PCRF), or a home subscriber server (HSS). The embodiments of the present disclosure do not limit the implementation form of the network management device 130.

[0064] To facilitate understanding by those skilled in the art, the embodiments of the present disclosure list multiple implementation methods to clearly illustrate the technical solutions of the embodiments of the present disclosure. Of course, those skilled in the art will understand that the multiple embodiments provided in the embodiments of the present disclosure can be implemented individually, or can be implemented together with the methods of other embodiments in the embodiments of the present disclosure, or can be implemented together with some methods in other related technologies individually or in combination; the embodiments of the present disclosure do not limit this.

[0065] To better understand the embodiments of the present disclosure, the following describes a wireless communication scenario:

[0066] In some embodiments, the AMF supports an LMF selection function for determining the LMF used for position estimation of the target UE or ranging / SL positioning between the target UE and a SL reference UE. The LMF also supports the LMF selection function if the LMF determines that it is not suitable or cannot support positioning of the current UE access network or serving cell for a delayed 5GC Mobile Terminated Location Request (5GC-MT-LR) procedure for periodic or triggered positioning events.

[0067] In some embodiments, LMF reselection is a function supported by the AMF when necessary, e.g., UE mobility.

[0068] In some embodiments, LMF selection or reselection can be performed at the AMF or LMF based on local configuration information, that is, the configuration information of the LMF can be configured at the AMF or LMF, or the configuration information of the LMF can be obtained by querying the network storage function (NRF, Network Repository Function).

[0069] In some embodiments, when selecting an LMF, at least one of the following factors may be considered:

[0070] Location Services (LCS) client type;

[0071] Requested quality of service information, e.g., LCS accuracy, response time (latency) and / or access type (3GPP / N3GPP);

[0072] Radio Access Type (RAT) and / or serving access node of the target UE;

[0073] Radio access network RAN ​​configuration information;

[0074] LMF capabilities;

[0075] LMF load;

[0076] LMF position;

[0077] Indication for single incident reporting or multiple incident reporting;

[0078] reporting period for incidents;

[0079] Network slicing information;

[0080] LMF service area consists of one or more tracking areas (TA);

[0081] Supported Geographical Area Description (GAD) shapes;

[0082] LMF identification (ID);

[0083] Each group ID and its related LMF ID. Here, the group ID may be an ID used to indicate multiple UEs when making positioning requests for the multiple UEs.

[0084] In some embodiments, when the Gateway Mobile Location Center (GMLC) receives an MT positioning request from an LCS client or an Application Function (AF), the GMLC determines the LMF ID based on the LCS data of the LCS client or AF. In the case where the group ID is provided or derived from the location request, the GMLC determines the LMF ID based on the provided group ID.

[0085] In some embodiments, the GMLC may be configured with an LMF ID that is not associated with any LCS client or AF. When the GMLC receives a mobile terminal (MT) location request from an LCS client / AF, the GMLC determines the LMF IDs of all LCS clients or AFs.

[0086] In some embodiments, the AMF may locally configure a mapping table of UE identifiers, for example, a mapping table of the relationship between a Mobile Station Integrated Services Digital Network (MSISDN) identifier (a type of UE identifier) ​​and an LMF address. When a Mobile Originated Location Request (MO-LR) is received, the AMF may determine the LMF based on the locally configured mapping table, that is, determine the LMF address corresponding to the UE identifier from the mapping table according to the UE identifier indicated in the MO-LR. In this way, the LMF is determined.

[0087] In some embodiments, when one of the UEs participating in ranging or SL positioning is within network coverage, the LMF can be used to support SL-MO-LR. Referring to Figure 2, a process is shown that enables a UE designated as UE1 to obtain UE1's ranging SL positioning results using one or more other UEs designated as UE2, UE3, ..., UEn, with the help of the LMF in UE1's serving public land mobile network (PLMN). The ranging or SL positioning results may include absolute position, relative position, or distance and direction, depending on the service request.

[0088] Referring to FIG. 2 , a positioning method provided by an embodiment of the present disclosure includes:

[0089] Step 201: Ranging or SL positioning service authorization, and measurement or parameter configuration;

[0090] Step 202: UE1 determines whether to use SL-MO-LR or only UE SL positioning;

[0091] Step 203: If only SL positioning of the UE is used, perform ranging / SL positioning control procedures;

[0092] Step 204: Terminal triggers service request. If SL-MO-LR is used and UE1 is in the Connection Management IDLE (CM-IDLE) state, UE1 initiates a UE-triggered service request to establish a signaling connection with UE1's serving AMF.

[0093] Step 205: UE1 sends a supplementary service SL-MO-LR request to the serving AMF in an uplink connection non-access layer report message. The SL-MO-LR request indicates the other UEs 2 to UEn (using application layer IDs, such as GPSI), any assistance data required, whether position calculation assistance is required, and whether the position result should be transmitted to the LCS client or AF. It also includes details of the LCS client or AF (and possible GMLC) and the application layer IDs of all UEs. For position calculation assistance from the LMF, the preferred type of sidelink positioning / ranging position result (for example, absolute position, relative position, or distance and direction between UE pairs) and the required quality of service (QoS) are included.

[0094] Step 206: Send an Nlmf_Location_DetermineLocation Request. The serving AMF selects the LMF serving UE1 (e.g., an LMF that supports sidelink positioning / ranging) and sends an Nmf_Location_DetermineLocation service operation to the LMF using the information from the SL-MO-LR request. Here, the Nlmf_Location_DetermineLocation Request may include the information in the SL-MO-LR request.

[0095] Step 207: If the user plane connection is used, the LMF or UE1 may initiate user connection establishment, and subsequent interactions between UE1 and LMF will be performed on the user plane (UP).

[0096] Step 208: Send capability request: The LMF sends a request for the capabilities of all UE1 to UEn to UE1.

[0097] Step 209: Send capability response: UE 1 to UEn return their capabilities to the LMF.

[0098] Step 210: UE1 may send a request for specific assistance data to the LMF.

[0099] Step 211: Share assistance data. The LMF sends the requested assistance data to UE 1 to UEn. In step 213, the assistance data can help UE 1 to UEn obtain edge link location measurements and / or in step 214, can help UE1 calculate edge link positioning / ranging results. It should be noted that if UE1 includes a message including the capabilities of UE1 to n in the SL-MO-LR request in step 205, steps 208 and 209 can be omitted. If UE1 includes a message including a request for specific assistance data in the SL-MO-LR request in step 205, step 210 can be omitted.

[0100] Step 212: Request positioning information. If the SL-MO-LR request in step 205 indicates that position calculation assistance is required and / or indicates that edge link positioning / ranging position results are transmitted to the LCS client or AF, the LMF sends a request for position information to UE1 and may also send requests for position information to UE2 to UEn.

[0101] Step 213: Perform ranging or SL positioning control procedures. UE1 initiates an edge link positioning / ranging procedure between UE1 to UEn, where UE1 to UEn obtain edge link position measurements, and UE2 to UEn transmit their edge link position measurements to UE1 and / or LMF (depending on the requested assistance).

[0102] Step 214: Execute the 5GC-MO-LR procedure from UE2 to UEn. If the absolute location information of UE1 is required in step 205, and if the absolute locations of UE2...UEn are not available, UE2...UEn may perform the 5GC-MO-LR procedure to obtain their absolute locations.

[0103] Step 215: Calculate positioning results. If UE1 does not determine to request assistance from the LMF or the LMF determines to use UE-based calculation, UE1 calculates edge link positioning / ranging results for itself and each of UEs 2 to UEn based on the edge link position measurements obtained in step 213 and possibly using the assistance data received in step 213. The sidelink positioning / ranging results may include absolute positions, relative positions, or ranges and directions associated with UEs 1 to UEn.

[0104] Step 216: Provide positioning information. If UE1 receives a request for location information at step 214, UE1 sends a response to the LMF, including the edge link location measurement obtained at step 215 or the edge link positioning / ranging position result obtained at step 215 if step 215 is executed.

[0105] Step 217: Execute the 5GC-MT-LR procedure for UE2 to UEn. If the absolute location information of UE1 is required in step 215, and if the absolute locations of UE2...UEn are not available, the LMF may perform the 5GC-MT-LR procedure to obtain their absolute locations.

[0106] Step 218: Calculate positioning results. If step 216 occurs, and if position calculation assistance is requested from the LMF in step 208, the LMF calculates edge link positioning / ranging results for UEs 1 to UEn based on the edge link position measurements received in step 215. The sidelink positioning / ranging results may include absolute positions, relative positions, or range and direction associated with UEs 1 to UEn.

[0107] Step 219: Send Nmmf_Location_DetermineLocation. The LMF returns an Nmmf_Location_DetermineLocation service operation response to the AMF, including any edge link positioning / ranging results received in step 16 or calculated in step 18.

[0108] Step 220: Transmit the positioning result to the GMLC and optionally the AF or LCS client. If the edge link positioning / ranging position result is received in step 219, the AMF sends the edge link positioning or ranging position result to the GMLC, and if requested in step 205, to the AF or LCS client. The edge link positioning / ranging position result includes the global identity of UE 1 to UEn received in step 208. It should be noted that sending the position result and global identity of UE 1 to UEn to the AF or LCS client may require privacy verification from UE 1 to UEn and / or from the Home Public Land Mobile Network (HPLMN) of UE 1 to n.

[0109] Step 221. Send a DL NAS TRANSPORT message. The LMF returns a supplementary service SL-MO-LR response to UE1 in the DL NAS TRANSPORT message, and if step 218 is performed, the LMF includes any edge link positioning / ranging position results calculated in step 218. UE1 can then transmit any edge link positioning or SL position results to UE2 to n. The solution needs to be updated to cover the following case: when the target UE (UE1) has a NAS connection and can communicate with the LMF, and requests absolute positioning of UE1 and performs position estimation, the LMF. The LMF can retrieve the position of the positioned UE (UE2-n) from a locally stored position, from the positioned UE, or by using the services provided by the GMLC to request a new position estimate. The solution can also include the option of UE1 performing UE1 position estimation with the assistance of the LMF.

[0110] As shown in FIG3 , this embodiment provides an information indication method, wherein the method is performed by a first network element and includes:

[0111] Step 31: Determine a selection result of the second network element; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element;

[0112] Step 32: Based on the selection result, determine the positioning method for ranging or sidelink SL positioning of the first terminal; wherein the positioning method includes one of the following: a first method based on terminal-based SL positioning; a second method based on network-based SL positioning.

[0113] In one embodiment, a second network element is selected to obtain a selection result; wherein, the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element; based on the selection result, a positioning method for ranging or sidelink SL positioning of the first terminal is determined; wherein, the positioning method includes one of the following: a first method based on the terminal to perform SL positioning; a second method based on the network to perform SL positioning.

[0114] In an embodiment of the present disclosure, a suitable second network element may be a second network element that meets a predetermined condition, where the predetermined condition may be determined based on at least one of the following: LCS client type; requested quality of service information; serving access node of the RAT and / or target UE; RAN configuration information; LMF capability; LMF payload; LMF location; indication of a single event report or multiple event reports; event reporting period; network slice information; LMF service area consisting of one or more TAs; supported GAD shapes; LMF identifier; each group identifier and its associated LMF identifier. For example, a suitable second network element is a second network element whose corresponding LCS server is a first type LCS server and whose service quality corresponds to Grade A quality of service.

[0115] It should be noted that in the embodiments of the present disclosure, "ranging positioning", "SL positioning" and "ranging or SL positioning" can be interchangeable, and can all be positioning based on the PC5 protocol.

[0116] Here, the terminal involved in the present disclosure may be, but is not limited to, a mobile phone, a wearable device, a vehicle-mounted terminal, a roadside unit (RSU), a smart home terminal, an industrial sensor device, and / or a medical device. In some embodiments, the terminal may be a Redcap terminal or a predetermined version of a new air interface NR terminal (for example, an R17 NR terminal). This is not limited here.

[0117] The access network device involved in the present disclosure may be a base station, which may be a base station in the fifth generation mobile communication technology or other evolved base stations, and is not limited here.

[0118] The first network element involved in the present disclosure may be an access and mobility management function (AMF); the second network element may be a location management function (LMF).

[0119] In one embodiment, first information sent by the first terminal is received; wherein the first information is used to request positioning of the first terminal based on the second method. In response to receiving the first information, the second network element is selected to obtain the selection result; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element; based on the selection result, a positioning method for ranging or sidelink SL positioning of the first terminal is determined; wherein the positioning method includes one of the following: a first method based on terminal-based SL positioning (UE only SL Positioning); a second method based on network-based SL positioning (the Network based SL positioning). Exemplarily, the first information includes ranging positioning terminal-originated positioning request information or sidelink positioning terminal-originated positioning request information (SL-MO-LR Request, SL Mobile Originated Location Request).

[0120] In one embodiment, first information sent by the first terminal is received; wherein the first information is used to request positioning of the first terminal based on the second method. In response to receiving the first information, the second network element is selected to obtain the selection result; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element; based on the selection result, a positioning method for ranging or sidelink (SL) positioning of the first terminal is determined; wherein the positioning method includes one of the following: a first method based on terminal-based SL positioning; a second method based on network-based SL positioning. In response to the first network element selecting a suitable second network element, the positioning method is determined to be the second method.

[0121] In one embodiment, first information sent by the first terminal is received; wherein the first information is used to request positioning of the first terminal based on the second method. In response to receiving the first information, the second network element is selected to obtain the selection result; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element; based on the selection result, a positioning method for ranging or sidelink SL positioning of the first terminal is determined; wherein the positioning method includes one of the following: a first method based on terminal-based SL positioning; a second method based on network-based SL positioning. In response to the first network element not selecting a suitable second network element, second information is sent to the first terminal; wherein the second information indicates a rejection of positioning of the first terminal based on the second method. Here, the second information can be SL-MO-LR rejection information.

[0122] In one embodiment, a second network element is selected to obtain a selection result, wherein the selection result indicates one of the following: the first network element selects a suitable second network element; or the first network element does not select a suitable second network element; based on the selection result, a positioning mode for ranging or sidelink (SL) positioning of the first terminal is determined; wherein the positioning mode includes one of the following: a first mode in which SL positioning is performed based on the terminal; or a second mode in which SL positioning is performed based on the network. In response to determining the suitable second network element, the first information is sent to the second network element.

[0123] In one embodiment, a second network element is selected based on predetermined information to obtain a selection result; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element; based on the selection result, a positioning method for ranging or sidelink SL positioning of the first terminal is determined; wherein the positioning method includes one of the following: a first method based on terminal-based SL positioning; a second method based on network-based SL positioning. Here, the predetermined information may include at least one of the following: LCS client type; requested quality of service information; serving access node of the RAT and / or target UE; RAN configuration information; LMF capability; LMF load; LMF location; indication of single event report or multiple event reports; reporting period of events; network slice information; LMF service area consisting of one or more TAs; supported GAD shapes; LMF identifier; each group identifier and its associated LMF identifier.

[0124] In an embodiment of the present disclosure, a second network element is selected to obtain a selection result; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element; based on the selection result, a positioning method for ranging or sidelink SL positioning of the first terminal is determined; wherein the positioning method includes one of the following: a first method based on terminal-based SL positioning; a second method based on network-based SL positioning. Here, the positioning method for ranging or sidelink SL positioning of the first terminal can be determined based on the selection result of the second network element. In this way, when a suitable second network element is selected, the first method can be used to position the terminal; or, when a suitable second network element is not selected, the second method can be used to position the terminal. In this way, the positioning method can adapt to the selection result of the second network element, and the positioning method is more flexible and can make the positioning of the terminal more reliable and accurate.

[0125] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0126] As shown in FIG4 , this embodiment provides an information indication method, wherein the method is performed by a first network element and includes:

[0127] Step 41: Receive first information sent by a first terminal;

[0128] The first information is used to request positioning of the first terminal based on a second method; the second method is a method of performing SL positioning based on the network.

[0129] In one embodiment, first information sent by the first terminal is received; wherein the first information is used to request positioning of the first terminal based on the second method. In response to receiving the first information, the second network element is selected to obtain the selection result; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element; based on the selection result, a positioning method for ranging or sidelink SL positioning of the first terminal is determined; wherein the positioning method includes one of the following: a first method based on terminal-based SL positioning (UE only SL Positioning); a second method based on network-based SL positioning (the Network based SL positioning). Here, the first information is ranging or sidelink terminal-originated positioning request information (SL-MO-LR Request, SL Mobile Originated Location Request).

[0130] In one embodiment, first information sent by the first terminal is received; wherein the first information is used to request positioning of the first terminal based on the second method. In response to receiving the first information, the second network element is selected to obtain the selection result; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element; based on the selection result, a positioning method for ranging or sidelink (SL) positioning of the first terminal is determined; wherein the positioning method includes one of the following: a first method based on terminal-based SL positioning; a second method based on network-based SL positioning. In response to the first network element selecting a suitable second network element, the positioning method is determined to be the second method.

[0131] In one embodiment, first information sent by the first terminal is received; wherein the first information is used to request positioning of the first terminal based on the second method. In response to receiving the first information, the second network element is selected to obtain the selection result; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element; based on the selection result, a positioning method for ranging or sidelink SL positioning of the first terminal is determined; wherein the positioning method includes one of the following: a first method based on terminal-based SL positioning; a second method based on network-based SL positioning. In response to the first network element not selecting a suitable second network element, second information is sent to the first terminal; wherein the second information indicates a rejection of positioning of the first terminal based on the second method. Here, the second information can be SL-MO-LR rejection information.

[0132] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0133] As shown in FIG5 , this embodiment provides an information indication method, wherein the method is performed by a first network element and includes:

[0134] Step 51: In response to the first network element failing to select a suitable second network element, sending second information to the first terminal;

[0135] The second information indicates a refusal to locate the first terminal based on the second method; the second method is a method of performing SL positioning based on the network.

[0136] In one embodiment, first information sent by the first terminal is received; wherein the first information is used to request positioning of the first terminal based on the second method. In response to receiving the first information, the second network element is selected to obtain the selection result; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element; based on the selection result, a positioning method for ranging or sidelink SL positioning of the first terminal is determined; wherein the positioning method includes one of the following: a first method based on terminal-based SL positioning; a second method based on network-based SL positioning. In response to the first network element not selecting a suitable second network element, second information is sent to the first terminal; wherein the second information indicates a rejection of positioning of the first terminal based on the second method. Here, the second information can be SL-MO-LR rejection information.

[0137] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0138] As shown in FIG6 , this embodiment provides an information indication method, wherein the method is performed by a first network element and includes:

[0139] Step 61: In response to determining a suitable second network element, sending first information to the second network element;

[0140] The first information is used to request positioning of the first terminal based on a second method; the second method is a method of performing SL positioning based on the network.

[0141] In one embodiment, a second network element is selected to obtain a selection result, wherein the selection result indicates one of the following: the first network element selects a suitable second network element; or the first network element does not select a suitable second network element; based on the selection result, a positioning mode for ranging or sidelink (SL) positioning of the first terminal is determined; wherein the positioning mode includes one of the following: a first mode in which SL positioning is performed based on the terminal; or a second mode in which SL positioning is performed based on the network. In response to determining the suitable second network element, the first information is sent to the second network element.

[0142] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0143] As shown in FIG7 , this embodiment provides an information indication method, wherein the method is performed by a second network element and includes:

[0144] Step 71: Receive first information sent by a first network element;

[0145] The first information is used to request positioning of the first terminal based on a second method; the second method is a method of performing SL positioning based on the network.

[0146] Here, the terminal involved in the present disclosure may be, but is not limited to, a mobile phone, a wearable device, a vehicle-mounted terminal, a roadside unit (RSU), a smart home terminal, an industrial sensor device, and / or a medical device. In some embodiments, the terminal may be a Redcap terminal or a predetermined version of a new air interface NR terminal (for example, an R17 NR terminal). This is not limited here.

[0147] The access network device involved in the present disclosure may be a base station, which may be a base station in the fifth generation mobile communication technology or other evolved base stations, and is not limited here.

[0148] The first network element involved in the present disclosure may be an access and mobility management function (AMF); the second network element may be a location management function (LMF).

[0149] In one embodiment, a first network element selects a second network element and obtains a selection result; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; or the first network element does not select a suitable second network element; based on the selection result, the first network element determines a positioning method for ranging or sidelink (SL) positioning of the first terminal; wherein the positioning method includes one of the following: a first method for performing SL positioning based on the terminal; or a second method for performing SL positioning based on the network. In response to determining the suitable second network element, the first network element sends the first information to the second network element. The second network element receives the first information sent by the first network element.

[0150] In one embodiment, first information sent by a first network element is received; wherein the first information is used to request positioning of the first terminal based on a second method; the second method is a method of performing SL positioning based on the network. A user plane connection is established between the first terminal and the second network element. Here, the first information may be SL-MO-LR information.

[0151] In one embodiment, first information sent by a first network element is received; the first information is used to request positioning of the first terminal based on a second method; the second method is a method of performing SL positioning based on the network. A user plane connection is established between the first terminal and the second network element. In response to a determination to use the user plane connection, a data transmission positioning operation is performed on the user plane connection; and in response to a determination not to use the user plane connection, the data transmission positioning operation is performed on a control plane connection.

[0152] In one embodiment, first information sent by a first network element is received, wherein the first information is used to request positioning of the first terminal based on a second method, wherein the second method is a method of performing SL positioning based on a network. In response to positioning the first terminal based on the second method, positioning calculation is performed for the first terminal.

[0153] In one embodiment, first information sent by a first network element is received, wherein the first information is used to request positioning of the first terminal based on a second method, wherein the second method is a method of performing SL positioning based on a network. In response to positioning the first terminal based on the second method, positioning calculation is performed for the first terminal.

[0154] In one embodiment, first information sent by a first network element is received; wherein the first information is used to request positioning of the first terminal based on a second method; wherein the second method is a method of performing SL positioning based on the network. In response to positioning the first terminal based on the second method, a positioning calculation is performed for the first terminal. In response to the request to determine the absolute position of the first terminal, a positioning calculation is performed for the first terminal based on a first result and a second result; wherein the first result is a positioning result obtained during ranging or SL positioning control; and the second result is a positioning result of the second terminal obtained based on a terminal-initiated positioning request MO-LR and / or a terminal-terminated positioning request MT-LR.

[0155] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0156] As shown in FIG8 , this embodiment provides an information indication method, wherein the method is performed by a second network element and includes:

[0157] Step 81: Establish a user plane connection between a first terminal and a second network element.

[0158] In one embodiment, a user plane connection is established between the first terminal and the second network element. In response to determining to use the user plane connection, a data transmission positioning operation is performed on the user plane connection; and in response to determining not to use the user plane connection, the data transmission positioning operation is performed on a control plane connection.

[0159] In one embodiment, first information sent by a first network element is received; wherein the first information is used to request positioning of the first terminal based on a second method; the second method is a method of performing SL positioning based on the network. A user plane connection is established between the first terminal and the second network element. Here, the first information may be SL-MO-LR information.

[0160] In one embodiment, first information sent by a first network element is received; the first information is used to request positioning of the first terminal based on a second method; the second method is a method of performing SL positioning based on the network. A user plane connection is established between the first terminal and the second network element. In response to a determination to use the user plane connection, a data transmission positioning operation is performed on the user plane connection; and in response to a determination not to use the user plane connection, the data transmission positioning operation is performed on a control plane connection.

[0161] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0162] As shown in FIG9 , this embodiment provides an information indication method, wherein the method is performed by a second network element and includes:

[0163] Step 91: In response to positioning the first terminal based on the second method, performing positioning calculation for the first terminal;

[0164] Among them, the second method is a method of performing SL positioning based on the network.

[0165] In one embodiment, first information sent by a first network element is received, wherein the first information is used to request positioning of the first terminal based on a second method, wherein the second method is a method of performing SL positioning based on a network. In response to positioning the first terminal based on the second method, positioning calculation is performed for the first terminal.

[0166] In one embodiment, first information sent by a first network element is received; wherein the first information is used to request positioning of the first terminal based on a second method; wherein the second method is a method of performing SL positioning based on the network. In response to positioning the first terminal based on the second method, a positioning calculation is performed for the first terminal. In response to the request to determine the absolute position of the first terminal, a positioning calculation is performed for the first terminal based on a first result and a second result; wherein the first result is a positioning result obtained during ranging or SL positioning control; and the second result is a positioning result of the second terminal obtained based on a terminal-initiated positioning request MO-LR and / or a terminal-terminated positioning request MT-LR.

[0167] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0168] As shown in FIG10 , this embodiment provides an information indication method, where the method is performed by a first terminal and includes:

[0169] Step 101: Send first information to a first network element;

[0170] The first information is used to request positioning of the first terminal based on the second method; the second method is a method of performing SL positioning based on the network.

[0171] Here, the terminal involved in the present disclosure may be, but is not limited to, a mobile phone, a wearable device, a vehicle-mounted terminal, a roadside unit (RSU), a smart home terminal, an industrial sensor device, and / or a medical device. In some embodiments, the terminal may be a Redcap terminal or a predetermined version of a new air interface NR terminal (for example, an R17 NR terminal). This is not limited here.

[0172] The access network device involved in the present disclosure may be a base station, which may be a base station in the fifth generation mobile communication technology or other evolved base stations, and is not limited here.

[0173] The first network element involved in the present disclosure may be an access and mobility management function (AMF); the second network element may be a location management function (LMF).

[0174] In one embodiment, first information is sent to a first network element; wherein the first information is used to request positioning of the first terminal based on a second method; the second method is a method of performing SL positioning based on the network. Here, the first information is ranging or sidelink terminal originated location request information (SL-MO-LR Request, SL Mobile Originated Location Request).

[0175] In one embodiment, first information is sent to a first network element, wherein the first information is used to request positioning of the first terminal based on a second method, wherein the second method is a method of performing SL positioning based on a network. Second information is received from the first network element, wherein the second information indicates a rejection of positioning of the first terminal based on the second method. Here, the second information may be SL-MO-LR rejection information.

[0176] In one embodiment, first information is sent to a first network element, wherein the first information is used to request positioning of the first terminal based on a second method, wherein the second method is a method of performing SL positioning based on a network. Second information is received from the first network element, wherein the second information indicates a refusal to position the first terminal based on the second method. In response to receiving the second information, the terminal is positioned based on a first method, wherein the first method is a method of performing SL positioning based on a terminal.

[0177] In one embodiment, first information is sent to a first network element, wherein the first information is used to request positioning of the first terminal based on a second method, wherein the second method is a method of performing SL positioning based on a network. Second information is received from the first network element, wherein the second information indicates a rejection of positioning of the first terminal based on the second method. In response to receiving the second information, the terminal is positioned based on a first method, wherein the first method is a method of performing SL positioning based on a terminal. In response to positioning the terminal based on the first method, positioning calculations are performed for the first terminal.

[0178] In one embodiment, first information is sent to a first network element; wherein the first information is used to request positioning of the first terminal based on the second method; the second method is a method of performing SL positioning based on the network. Second information sent by the first network element is received; wherein the second information indicates a refusal to position the first terminal based on the second method. In response to receiving the second information, the terminal is positioned based on the first method; wherein the first method is a method of performing SL positioning based on the terminal. In response to positioning the terminal based on the first method, a positioning calculation is performed for the first terminal. In response to a request to determine the absolute position of the first terminal, a positioning calculation is performed for the first terminal based on a first result and a second result; wherein the first result is a positioning result obtained during ranging or SL positioning control; and the second result is a positioning result of the second terminal obtained based on the MO-LR and / or the Mobile Terminated Location Request (MT-LR).

[0179] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0180] As shown in FIG11 , this embodiment provides an information indication method, where the method is performed by a first terminal and includes:

[0181] Step 111: Receive second information sent by the first network element;

[0182] The second information indicates a refusal to locate the first terminal based on a second method; the second method is a method of performing SL positioning based on the network.

[0183] In one embodiment, first information is sent to a first network element, wherein the first information is used to request positioning of the first terminal based on a second method, wherein the second method is a method of performing SL positioning based on a network. Second information is received from the first network element, wherein the second information indicates a rejection of positioning of the first terminal based on the second method. Here, the second information may be SL-MO-LR rejection information.

[0184] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0185] As shown in FIG12 , this embodiment provides an information indication method, where the method is performed by a first terminal and includes:

[0186] Step 121: In response to receiving the second information, locate the terminal based on the first method; wherein the second information indicates a refusal to locate the first terminal based on the second method; the first method is a method of performing SL positioning based on the terminal.

[0187] In one embodiment, first information is sent to a first network element, wherein the first information is used to request positioning of the first terminal based on a second method, wherein the second method is a method of performing SL positioning based on a network. Second information is received from the first network element, wherein the second information indicates a refusal to position the first terminal based on the second method. In response to receiving the second information, the terminal is positioned based on a first method, wherein the first method is a method of performing SL positioning based on a terminal.

[0188] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0189] As shown in FIG13 , this embodiment provides an information indication method, where the method is performed by a first terminal and includes:

[0190] Step 131: In response to positioning the terminal based on the first method, performing positioning calculation for the first terminal;

[0191] Among them, the first method is a method of performing SL positioning based on the terminal.

[0192] In one embodiment, first information is sent to a first network element, wherein the first information is used to request positioning of the first terminal based on a second method, wherein the second method is a method of performing SL positioning based on a network. Second information is received from the first network element, wherein the second information indicates a rejection of positioning of the first terminal based on the second method. In response to receiving the second information, the terminal is positioned based on a first method, wherein the first method is a method of performing SL positioning based on a terminal. In response to positioning the terminal based on the first method, positioning calculations are performed for the first terminal.

[0193] In one embodiment, first information is sent to a first network element; wherein the first information is used to request positioning of the first terminal based on the second method; and the second method is a method of performing SL positioning based on the network. Second information sent by the first network element is received; wherein the second information indicates a refusal to position the first terminal based on the second method. In response to receiving the second information, the terminal is positioned based on the first method; wherein the first method is a method of performing SL positioning based on the terminal. In response to positioning the terminal based on the first method, a positioning calculation is performed for the first terminal. In response to a request to determine the absolute position of the first terminal, a positioning calculation is performed for the first terminal based on a first result and a second result; wherein the first result is a positioning result obtained during ranging or SL positioning control; and the second result is a positioning result of the second terminal obtained based on MO-LR and / or MT-LR.

[0194] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0195] In order to better understand the embodiments of the present disclosure, the technical solution of the present disclosure is further described below through two exemplary embodiments:

[0196] Example 1:

[0197] Referring to FIG. 14 , a positioning method provided by an embodiment of the present disclosure includes:

[0198] Step 1401: The network performs service authorization and corresponding parameter configuration;

[0199] Step 1402: The terminal sends an SL-MO-LR (corresponding to the first information in this disclosure) to the AMF.

[0200] Step 1403: The AMF determines whether a suitable LMF can be selected. If a suitable LMF is selected, step 1405 is executed. If no suitable LMF is selected (in this case, the second information can be sent to the terminal), step 1404 is executed.

[0201] Step 1404: perform ranging or SL positioning control (corresponding to the first method in this disclosure);

[0202] Step 1405: The LMF and / or UE determines whether to use the user plane connection of the LMF; if so, execute step 1406; if not, execute step 1407;

[0203] Step 1406: Execute the positioning procedure through the user plane connection between the terminal and the LMF, and then execute step 1407;

[0204] Step 1407: Execute ranging or SL positioning control program;

[0205] Step 1408: Determine whether to perform terminal-based positioning; if yes, execute step 1409; if not, execute step 1413;

[0206] Step 1409: Determine whether an absolute positioning request is received; if yes, execute step 1410; if not, execute step 1412;

[0207] Step 1410: Determine whether the absolute positioning result of the positioning terminal is valid. If so, execute step 1412; if not, execute step 1411;

[0208] Step 1411: Execute the terminal-based 5GC-MO-LR procedure;

[0209] Step 1412: The terminal calculates the positioning result; then executes step 1417.

[0210] Step 1413: Determine whether an absolute positioning request is received; if yes, execute step 1414; if no, execute step 1416;

[0211] Step 1414: Determine whether the absolute positioning result of the positioning terminal is valid. If so, execute step 1416; if not, execute step 1415.

[0212] Step 1415: Execute the LMF-based 5GC-MT-LR procedure;

[0213] Step 1416: LMF performs positioning result calculation; then executes step 1417;

[0214] Step 1417: Determine whether to send the calculated positioning result to the AF; if so, execute step 1418; if not, execute step 1419;

[0215] Step 1418: Send the calculated positioning result to the AF.

[0216] Step 1419: Send the calculated positioning result to the terminal.

[0217] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0218] Example 2:

[0219] Referring to FIG. 15 , a positioning method provided by an embodiment of the present disclosure includes:

[0220] Step 1501 is the same as step 201 in FIG. 2 .

[0221] Step 1502 to step 1503 are the same as step 204 to step 205 in FIG. 2 .

[0222] Step 1504: AMF performs LMF selection.

[0223] Steps 1505 to 1506: If no suitable LMF is found, the AMF sends an SL-MO-LR reject to UE1 and UE-only operation will be used.

[0224] Step 1507: If an appropriate LMF is selected, the AMF sends a request to it, as shown in step 206 in Figure 2.

[0225] Steps 1508 to 1522 are the same as steps 207 to 221 in FIG. 2 .

[0226] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0227] As shown in FIG16 , an embodiment of the present disclosure provides an information indication device, wherein the device includes:

[0228] The selection module 161 is configured to: select a second network element and obtain a selection result; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element;

[0229] The determination module 162 is configured to: determine the positioning method for ranging or side link SL positioning of the first terminal based on the selection result; wherein the positioning method includes one of the following: a first method based on the terminal to perform SL positioning; a second method based on the network to perform SL positioning.

[0230] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0231] As shown in FIG17 , an embodiment of the present disclosure provides an information indication device, wherein the device includes:

[0232] The receiving module 171 is configured to receive first information sent by the first network element;

[0233] The first information is used to request positioning of the first terminal based on a second method; the second method is a method of performing SL positioning based on the network.

[0234] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0235] As shown in FIG18 , an embodiment of the present disclosure provides an information indication device, wherein the device includes:

[0236] The sending module 181 is configured to send the first information to the first network element;

[0237] The first information is used to request positioning of the first terminal based on the second method; the second method is a method of performing SL positioning based on the network.

[0238] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0239] An embodiment of the present disclosure provides an information indication system, which includes a first network element, a second network element and a terminal; wherein the first network element is configured as an information indication method executed by any of the first network elements in the embodiments of the present disclosure; the second network element is configured as an information indication method executed by any of the second network elements in the embodiments of the present disclosure, and the terminal is configured as an information indication method executed by any of the terminals in the embodiments of the present disclosure.

[0240] An embodiment of the present disclosure provides a communication device, the communication device including:

[0241] processor;

[0242] a memory for storing processor-executable instructions;

[0243] The processor is configured to implement the method applied to any embodiment of the present disclosure when running the executable instructions.

[0244] The processor may include various types of storage media, which are non-temporary computer storage media that can continue to store information after the communication device loses power.

[0245] The processor may be connected to the memory via a bus or the like to read the executable program stored in the memory.

[0246] An embodiment of the present disclosure further provides a computer storage medium, wherein the computer storage medium stores a computer executable program, and when the executable program is executed by a processor, the method of any embodiment of the present disclosure is implemented.

[0247] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0248] As shown in FIG19 , an embodiment of the present disclosure provides a structure of a terminal.

[0249] 19 , this embodiment provides a terminal 800 , which may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like.

[0250] 19 , the terminal 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0251] The processing component 802 generally controls the overall operation of the terminal 800, such as operations associated with display, phone calls, data communications, camera operation, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 802 may include one or more modules to facilitate interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

[0252] The memory 804 is configured to store various types of data to support operations on the device 800. Examples of such data include instructions for any application or method operating on the terminal 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0253] Power supply component 806 provides power to various components of terminal 800. Power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to terminal 800.

[0254] The multimedia component 808 includes a screen that provides an output interface between the terminal 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor can not only sense the boundaries of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have a focal length and optical zoom capability.

[0255] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), which is configured to receive external audio signals when the terminal 800 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0256] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as a keyboard, click wheel, buttons, etc. These buttons may include but are not limited to: a home button, volume buttons, a start button, and a lock button.

[0257] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the terminal 800. For example, the sensor assembly 814 can detect the open / closed state of the device 800, the relative positioning of components, such as the display and keypad of the terminal 800. The sensor assembly 814 can also detect changes in the position of the terminal 800 or a component of the terminal 800, the presence or absence of user contact with the terminal 800, the orientation or acceleration / deceleration of the terminal 800, and temperature changes of the terminal 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an accelerometer, a gyroscope, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0258] The communication component 816 is configured to facilitate wired or wireless communication between the terminal 800 and other devices. The terminal 800 can access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0259] In an exemplary embodiment, the terminal 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above methods.

[0260] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, which can be executed by the processor 820 of the terminal 800 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0261] As shown in Figure 20, an embodiment of the present disclosure shows the structure of a base station. For example, the base station 900 can be provided as a network-side device. Referring to Figure 20, the base station 900 includes a processing component 922, which further includes one or more processors, and a memory resource represented by a memory 932 for storing instructions that can be executed by the processing component 922, such as an application. The application stored in the memory 932 may include one or more modules, each corresponding to a set of instructions. In addition, the processing component 922 is configured to execute instructions to perform any of the aforementioned methods applied to the base station.

[0262] The base station 900 may also include a power supply component 926 configured to perform power management for the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to a network, and an input / output (I / O) interface 958. The base station 900 may operate based on an operating system stored in the memory 932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or the like.

[0263] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow from the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0264] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. An information indication method, wherein: The method is performed by a first network element, and the method includes: Selecting a second network element to obtain a selection result; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element; Based on the selection result, a positioning method for ranging or sidelink SL positioning of the first terminal is determined; wherein the positioning method includes one of the following: a first method based on performing SL positioning based on the terminal; a second method based on performing SL positioning based on the network.

2. The method according to claim 1, wherein: The method further comprises: receiving first information sent by the first terminal; The first information is used to request positioning of the first terminal based on the second method.

3. The method according to claim 2, wherein: The first information is ranging or sidelink terminal initiated positioning request SL-MO-LR information.

4. The method according to claim 2, wherein the selecting the second network element and obtaining the selection result comprises: In response to receiving the first information, the second network element is selected to obtain the selection result.

5. The method according to claim 1, wherein: The determining, based on the selection result, a positioning mode for sidelink SL positioning of the first terminal comprises one of the following: In response to the first network element selecting a suitable second network element, the positioning mode is determined to be the second mode.

6. The method according to claim 1, wherein: The method further comprises: In response to the first network element failing to select a suitable second network element, sending second information to the first terminal; The second information indicates a refusal to locate the first terminal based on the second method.

7. The method according to claim 6, wherein: The second information is SL-MO-LR rejection information.

8. The method according to claim 1, wherein: The method further comprises: In response to determining a suitable second network element, sending the first information to the second network element.

9. An information indication method, wherein: The method is performed by a second network element, and the method includes: Receiving first information sent by a first network element; The first information is used to request positioning of the first terminal based on a second method; the second method is a method of performing SL positioning based on the network.

10. The method according to claim 9, wherein: The first information is SL-MO-LR information.

11. The method according to claim 9, wherein: The method further comprises: Establish a user plane connection between the first terminal and the second network element.

12. The method according to claim 9, wherein: The method further comprises one of the following: In response to determining to use a user plane connection, performing a positioning operation on the user plane connection; In response to determining not to use the user plane connection, a positioning operation is performed on the control plane connection.

13. The method according to claim 9, wherein: The method further comprises: In response to positioning the first terminal based on the second method, a positioning calculation for the first terminal is performed.

14. The method according to claim 13, wherein: The performing of positioning calculation for the first terminal includes: In response to the request to determine the absolute position of the first terminal, performing a positioning calculation for the first terminal based on the first result and the second result; Among them, the first result is the positioning result obtained during ranging or SL positioning control; the second result is the positioning result of the second terminal obtained based on the terminal-initiated positioning request MO-LR and / or the terminal-terminated positioning request MT-LR.

15. An information indication method, wherein: The method is performed by a first terminal, and includes: Sending first information to the first network element; The first information is used to request positioning of the first terminal based on the second method; the second method is a method of performing SL positioning based on the network.

16. The method according to claim 15, wherein: The first information is SL-MO-LR information.

17. The method according to claim 15, wherein: The method further comprises: receiving second information sent by the first network element; The second information indicates a refusal to locate the first terminal based on the second method.

18. The method according to claim 17, wherein: The second information is SL-MO-LR rejection information.

19. The method according to claim 17, wherein: The method further comprises: In response to receiving the second information, the terminal is positioned based on a first method; wherein the first method is a method based on performing SL positioning on the terminal.

20. The method according to claim 19, wherein: The method further comprises: In response to positioning the terminal based on the first manner, a positioning calculation for the first terminal is performed.

21. The method according to claim 20, wherein: The performing of positioning calculation for the first terminal includes: In response to the request to determine the absolute position of the first terminal, performing a positioning calculation for the first terminal based on the first result and the second result; Among them, the first result is the positioning result obtained during ranging or SL positioning control; the second result is the positioning result of the second terminal obtained based on MO-LR and / or MT-LR.

22. An information indicating device, wherein: The device comprises: The selection module is configured to: select a second network element and obtain a selection result; wherein the selection result indicates one of the following: the first network element selects a suitable second network element; the first network element does not select a suitable second network element; The determination module is configured to: determine the positioning method for ranging or sidelink SL positioning of the first terminal based on the selection result; wherein the positioning method includes one of the following: a first method based on the terminal to perform SL positioning; a second method based on the network to perform SL positioning.

23. An information indicating device, wherein: The device comprises: A receiving module, configured to receive first information sent by a first network element; The first information is used to request positioning of the first terminal based on a second method; the second method is a method of performing SL positioning based on the network.

24. An information indicating device, wherein: The device comprises: A sending module, configured to send first information to the first network element; The first information is used to request positioning of the first terminal based on the second method; the second method is a method of performing SL positioning based on the network.

25. An information indication system, wherein: It includes a first network element, a second network element and a terminal; wherein the first network element is configured to implement the information indication method described in any one of claims 1 to 8; the second network element is configured to implement the information indication method described in any one of claims 9 to 14, and the terminal is configured to implement the information indication method described in any one of claims 15 to 21.

26. A communication device, wherein: include: one or more processors; The processor is used to call instructions so that the communication device executes the information indication method described in any one of claims 1 to 8, claims 9 to 14 or 15 to 21.

27. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device executes the information indication method according to any one of claims 1 to 8, claims 9 to 14, or 15 to 21.

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