A method, user equipment, apparatus, and computer program product for wireless communication

Abstract

A method, a user equipment, an apparatus and a computer program product for wireless communication are disclosed herein. The method for wireless communication comprises receiving, by a user equipment (UE), sidelink positioning information via a first signaling, wherein the first signaling comprises at least one of a PC5-RRC signaling, a sidelink control information (SCI), a radio resource control (RRC) signaling, a signaling generated at a logical layer, and wherein the sidelink positioning information comprises at least one of a sidelink positioning capability request, a sidelink positioning capability response, a sidelink assistance data request, a sidelink assistance data response, a sidelink measurement request, a sidelink measurement report.

Description

[0001] This application is a divisional application of Chinese patent application No. 202280094536.7, filed on April 15, 2022, entitled "Wireless Communication for Positioning via Sidelink". Technical Field

[0002] This application generally pertains to wireless communication. More specifically, location information is transmitted via a side link. Background Technology

[0003] Wireless communication technology is propelling the world towards an increasingly interconnected and networked society. Wireless communication relies on efficient network resource management and allocation between user mobile stations and radio access network nodes (including but not limited to radio base stations). Next-generation networks promise to provide high-speed, low-latency, and ultra-reliable communication capabilities, meeting the requirements of diverse industries and users. User mobile stations or user equipment (UEs) are becoming increasingly complex, and the amount of data communicated is constantly increasing. With the development of wireless multimedia services, the demand for high-data-rate services, as well as the system capacity and coverage requirements of traditional cellular networks, are increasing. Furthermore, there is a growing demand for public safety, social networks, short-range data sharing, local advertising, and other proximity services that allow people to communicate with nearby people or objects. Device-to-device (D2D) communication technology can meet these needs. To improve communication and meet the reliability requirements of vertical industries, as well as support next-generation network services, D2D communication should be improved. Summary of the Invention

[0004] This application relates to methods, systems, and apparatus for sidelink communication for device-to-device positioning. Sidelink-based communication can occur between devices (“UEs”) and / or with other network nodes (such as base stations) and can include sidelink positioning information for location determination. This may include D2D scenarios and vehicle-to-everything (V2X) communication via a PC5 interface. The sidelink positioning information, transmitted via the PC5 interface, includes location, capabilities, ancillary data, and measurement reports.

[0005] In one embodiment, a method for wireless communication includes: a user equipment (UE) receiving sidelink positioning information via a first signaling based on an association between sidelink positioning information and a first signaling, wherein the first signaling includes at least one of PC5 signaling, PC5-RRC signaling, Media Access Control (MAC) Control Unit (MAC-CE), Sidelink Control Information (SCI), Radio Resource Control (RRC) signaling, LTE Positioning Protocol (LPP) signaling, or signaling generated in a new logical layer; furthermore, the sidelink positioning information includes at least one of a sidelink location request, a sidelink location response, a sidelink positioning capability request, a sidelink positioning capability response, a sidelink auxiliary data request, a sidelink access auxiliary data response, a sidelink measurement request, or a sidelink measurement response. The sidelink positioning information is transmitted from another node, wherein the other node includes at least one of a network node or another UE. The network node includes at least one of an NG-RAN node, a Location Management Function (LMF), an Access and Mobility Management Function (AMF), a gNB, an ng-eNB, a Transmitter Receiver Point (TRP), and a Transmitter Point (TP) for Positioning Reference Signals Only (PRS). The sidelink location information is sent from a network node. The method also includes receiving auxiliary information from the network node, which includes at least one of the UE's sidelink auxiliary data, the sidelink auxiliary data of an associated peer UE, or the sidelink location capability of the associated peer UE. The method includes receiving the sidelink location information via broadcast from PC5-RRC signaling.

[0006] In some embodiments, the association between the sidelink location information and the first signaling includes one or more of the following transmitted via PC5-RRC signaling: a sidelink location request, a sidelink location response, a sidelink location capability request, a sidelink location capability response, a sidelink auxiliary data request, a sidelink auxiliary data response, a sidelink measurement request, or a sidelink measurement report. In some embodiments, the association between the sidelink location information and the first signaling includes one or more of the following transmitted via PC5 signaling: a sidelink location request, a sidelink location response, a sidelink location capability request, a sidelink location capability response, a sidelink auxiliary data request, a sidelink auxiliary data response, a sidelink measurement request, or a sidelink measurement report. In some embodiments, the association between the sidelink location information and the first signaling includes one or more of the following transmitted via signaling generated in a new logical layer: a sidelink location request, a sidelink location response, a sidelink location capability request, a sidelink location capability response, a sidelink auxiliary data request, a sidelink auxiliary data response, a sidelink measurement request, or a sidelink measurement report. In some embodiments, the association between sidelink location information and the first signaling includes one or more of a sidelink location request, sidelink location response, sidelink measurement request, and sidelink measurement report transmitted via PC5 signaling, while one or more of a sidelink location capability request, sidelink location capability response, sidelink auxiliary data request, and sidelink auxiliary data response are transmitted via PC5-RRC signaling. In some embodiments, the association between sidelink location information and the first signaling includes one or more of a sidelink location request and sidelink location response transmitted via PC5 signaling, while one or more of a sidelink location capability request, sidelink location capability response, sidelink auxiliary data request, sidelink auxiliary data response, sidelink measurement request, and sidelink measurement report are transmitted via PC5-RRC signaling. In some embodiments, the association between sidelink location information and the first signaling includes one or more of a sidelink location request, sidelink location response, sidelink location capability request, sidelink location capability response, sidelink auxiliary data request, sidelink auxiliary data response, or sidelink measurement report transmitted via PC5-RRC signaling, while the sidelink measurement request is transmitted via sidelink control information (SCI) or MAC-CE. In some embodiments, the association between the sidelink location information and the first signaling includes one or more of the following transmitted via PC5 signaling: a sidelink location request, a sidelink location response, a sidelink location capability request, a sidelink location capability response, a sidelink auxiliary data request, a sidelink auxiliary data response, or a sidelink measurement report, while the sidelink measurement request is transmitted via sidelink control information (SCI) or MAC-CE.In some embodiments, the association between the sidelink location information and the first signaling includes one or more of the following: a sidelink location request, a sidelink location response, a sidelink location capability request, a sidelink location capability response, a sidelink auxiliary data request, a sidelink auxiliary data response, or a sidelink measurement report, transmitted via signaling generated in a new logical layer, while the sidelink measurement request is transmitted via sidelink control information (SCI) or MAC-CE.

[0007] In some embodiments, a sidelink location request includes at least one of a request to receive a sidelink positioning reference signal (SL-PRS), a request to transmit an SL-PRS, a quality of service (QoS) requirement, a request to receive sidelink auxiliary data, a request to transmit sidelink auxiliary data, or a sidelink positioning method. A sidelink location response includes at least one of an indication of a successful location response or an indication of a failed location response. Sidelink capability requests and responses include at least one of transmission capability, reception capability, processing capability, reporting capability, or positioning calculation capability. A sidelink auxiliary data request includes at least one of auxiliary data for calculating a positioning estimate or a sidelink positioning reference signal (SL-PRS) configuration. A sidelink auxiliary data response includes at least one of auxiliary data for calculating a sidelink positioning estimate, a quality of service (QoS) requirement, a sidelink positioning reference signal (SL-PRS) configuration, or an identifier for identifying the SL-PRS configuration. The sidelink measurement request includes at least one of the following: SL-PRS resource identifier indicating a transmit sidelink positioning reference signal (SL-PRS) resource; SL-PRS resource identifier indicating a receive SL-PRS resource; deleted SL-PRS resource identifier; SL-PRS resource set identifier indicating a transmit sidelink positioning reference signal (SL-PRS) resource set; SL-PRS resource set identifier indicating a receive SL-PRS resource set; deleted SL-PRS resource set identifier; modified SL-PRS characteristics; Quality of Service (QoS) requirements; sidelink positioning method; or synchronization source. The sidelink measurement response includes at least one of the following: SL-PRS reference signal received power (RSRP); SL-PRS time of arrival (TOA); SL-PRS Rx-Tx time difference; SL-PRS reference signal time difference (RSTD); SL-PRS Rx beam index; timestamp for measurement; time quality; measurement quality; identifier of which SL-PRS is being measured in; identifier of which UE is being measured in; or synchronization source.

[0008] In one embodiment, a wireless communication device includes a processor and a memory, and the processor is configured to read code from the memory and implement any of the embodiments described above.

[0009] In one embodiment, a computer program product includes computer-readable program medium code stored thereon, which, when executed by a processor, causes the processor to perform any of the embodiments described above.

[0010] In some embodiments, there is a wireless communication device including a processor and a memory, wherein the processor is configured to read code from the memory and implement any of the methods described in any embodiment. In some embodiments, a computer program product includes computer-readable program medium code stored thereon, which, when executed by a processor, causes the processor to implement any of the methods described in any embodiment. The above and other aspects and their embodiments are described in more detail in the accompanying drawings, specification, and claims. Attached Figure Description

[0011] Figure 1 An example base station is shown.

[0012] Figure 2 An example random access (RA) messaging environment is shown.

[0013] Figure 3 An example sidelink communication utilizing PC5 signaling is shown.

[0014] Figure 4 An example node is shown that communicates with a user equipment (UE) via a sidelink.

[0015] Figure 5 An example network device is shown for a node to communicate with a user equipment (UE) via a sidelink.

[0016] Figure 6 An example PC5 signaling is shown.

[0017] Figure 7 An example sidelink communication is shown.

[0018] Figure 8 Another example of sidelink communication is shown.

[0019] Figure 9 An example layer structure is shown.

[0020] Figure 10 An example signaling structure is shown.

[0021] Figure 11 An example signaling structure with a new logical layer for sidelink localization is shown.

[0022] Figure 12 Another example signaling structure with a new logical layer is shown.

[0023] Figure 13An example of timing for sidelink location communication is shown.

[0024] Figure 14 An example of sidelink location communication utilizing PC5 signaling is shown.

[0025] Figure 15 An example of sidelink location communication in the new logical layer is shown.

[0026] Figure 16 An example of sidelink location communication using PC5 sidelink (PC5-S) signaling and PC5 radio resource control (RRC) signaling is shown.

[0027] Figure 17 Another example of sidelink location communication using PC5 sidelink (PC5-S) signaling and PC5 radio resource control (RRC) signaling is shown.

[0028] Figure 18 An example of sidelink location communication utilizing PC5 Radio Resource Control (RRC) signaling is shown.

[0029] Figure 19 Another example of sidelink location communication utilizing PC5 Radio Resource Control (RRC) signaling is shown.

[0030] Figure 20 An example of side-link positioning communication used for measurement is shown.

[0031] Figure 21 An example of sidelink location communication is shown.

[0032] Figure 22 Another example of sidelink location communication is shown.

[0033] Figure 23 An example of auxiliary information communication is shown.

[0034] Figure 24 An example of a measurement report or location estimation communication is shown. Detailed Implementation

[0035] This disclosure will now be described in detail below with reference to the accompanying drawings, which form part of this disclosure and illustrate specific examples of embodiments by way of illustration. However, it should be noted that this disclosure may be embodied in various different forms, and therefore the subject matter covered or claimed is intended to be construed as not being limited to any of the embodiments set forth below.

[0036] Throughout the specification and claims, terms may have suggestive or implied meanings in the context, in addition to their expressly stated meanings. Similarly, the phrases “in one embodiment” or “in some embodiments” as used herein do not necessarily refer to the same embodiment, and the phrases “in another embodiment” or “in other embodiments” as used herein do not necessarily refer to different embodiments. For example, the claimed subject matter includes all or part of exemplary embodiments or combinations of embodiments.

[0037] Generally, terms can be understood at least in part according to their usage in the context. For example, terms used herein such as “and,” “or,” and “and / or” can include a variety of meanings, which can depend at least in part on the context in which these terms are used. Typically, “or,” when used to relate a list, such as A, B, or C, is intended to mean A, B, and C in the sense of inclusion, and A, B, or C in the sense of exclusivity, as used herein. Furthermore, the terms “one or more” or “at least one,” as used herein, can be used, at least in part according to the context, to describe any feature, structure, or characteristic in a singular sense, or to describe a combination of features, structures, or characteristics in a plural sense. Similarly, terms such as “a,” “an,” or “the” can also be understood to convey either a singular or a plural usage, at least in part according to the context. Moreover, the terms “based on” or “determined by” can be understood not necessarily to convey a set of exclusive factors, but may allow for the existence of additional factors that are not necessarily explicitly described, again, at least in part according to the context.

[0038] The wireless communication described herein can be performed via radio access including New Radio (“NR”) access. Radio Resource Control (“RRC”) is a protocol layer at the IP level (network layer) between the User Equipment (“UE”) and the network (e.g., a base station or gNB). Various Radio Resource Control (RRC) states may exist, such as RRC_CONNECTED, RRC_INACTIVE, and RRC_IDLE. RRC messages are transmitted via Packet Data Convergence Protocol (“PDCP”). The UE can transmit data via the Random Access Channel (“RACH”) protocol scheme or the Configuration Grant (“CG”) scheme or grant scheme. The RACH scheme is merely one example of a protocol scheme used for communication, and other examples, including but not limited to CG, are also possible. Figure 1-2An example radio access network (“RAN”) node (e.g., a base station) and user equipment and messaging environment are illustrated. The communications described herein can be dedicated to sidelink communications, which may also be referred to as device-to-device (“D2D”) communications.

[0039] There may be at least two technical solutions, including the Internet Protocol (“IP”) layer (Layer 3 or “L3”) and the access layer (Layer 2 or “L2”) for sidelink communication. Layer 3-based relays forward data based on the UE’s IP information (e.g., IP address or IP port number). Layer 2-based relays route and forward user plane and control plane data at the access layer, allowing network operators (i.e., the core network and / or the BS) to manage remote UEs more effectively.

[0040] Sidelink communication can alleviate the burden on cellular networks, reduce power consumption of user equipment (“UEs”), increase data rates, and improve the robustness of network infrastructure, all of which can meet the needs of high data rate services and proximity services. Relay communication or D2D technology can also be referred to as ProSe or sidelink communication. The interface between devices can be referred to as or associated with the PC5 interface. PC5 can be a place where a UE can communicate directly with another UE via a direct channel without a base station. In some embodiments, sidelink-based relay communication can be applied to indoor relay communication, smart agriculture, smart factories, and public safety services. Sidelinks may operate based on the location of each device. For example, two user equipment (UE) terminals must be within range of each other to participate in sidelink communication. Positioning can also be referred to as ranging and can include relative positioning and absolute positioning. Based on positioning, bandwidth requirements may vary to meet accuracy requirements.

[0041] A UE can perform location with the network via the UU interface by sending a Sounding Reference Signal (SRS) and receiving a Positioning Reference Signal (PRS). When the UE is outside the network (NW) coverage area, or when the UE is within the NW coverage area but has low channel quality, the UE may need to obtain its precise location. In one example, the UE could be a cellular vehicle-to-everything (CV2X or C-V2X) or vehicle-to-everything (V2X) UE. Sidelink technology can be applied to V2X UEs to perform location. Sidelink technology can specify communication between V2X UEs for transmitting control signaling and service data via the PC5 interface. The PC5 interface can include PC5 signaling or PC5 RRC signaling to specify the configuration of unicast links or resource allocation. The signaling transmission method or procedure can specify the higher-level architecture used for sidelink location. Sidelink can refer to direct communication via PC5.

[0042] Vehicle-to-vehicle (V2V) communication can be based on D2D communication. The D2D interface can be designated PC5 and is also referred to as a sidelink at the physical layer. The PC5 interface has been enhanced for vehicle use cases, including addressing high speed and high density (number of nodes) issues. Direct communication between vehicles and other devices (V2V, V2I) can utilize the PC5 interface. PC5 can refer to a reference point for the UE to communicate with nodes via a direct channel in the absence of a base station. When sidelink positioning information (e.g., location, capabilities, auxiliary data, measurements, etc. as described herein) is transmitted via first signaling (e.g., PC5 signaling or other signaling as described herein), it can be referred to as the association between the first signaling and the sidelink positioning information.

[0043] Transmissions between UEs can originate from an initiating UE and a transmitting UE. The initiating UE can be a UE seeking to obtain its own location via sidelink positioning, or a UE receiving a location request from the network. One or more target UEs can be one or more UEs to which the initiating UE transmits a Sidelink Positioning Reference Signal (SL-PRS) or which receives an SL-PRS from it. The initiating UE and target UE can form a UE pair. To perform SL positioning, the target UE must know its precise location. The initiating UE can be referred to as the target UE, and when the target UE corresponds to the initiating UE, it can be referred to as the peer UE or associated peer UE. The target UE can be a UE seeking to obtain its own location via sidelink positioning, or a UE receiving a location request from the network. One or more peer UEs are one or more UEs that transmit or receive an SL-PRS from the UE that initiated the SL-PRS. The target UE and associated peer UE can form a UE pair. The peer UE can also be referred to as the anchor UE, and to perform SL positioning, the peer UE may need to know its precise location. In the example embodiment, the initiating UE and the target UE are shown together, and the target UE and the peer UE are shown together. These embodiments are applicable when the UE is in any coverage area, including 1) when both UEs in the UE pair are in the coverage / partial coverage area of ​​the network; 2) when one UE in the UE pair is in the coverage / partial coverage area while the other is out of coverage; or 3) when both UEs in the UE pair are out of coverage.

[0044] Sidelink communication can be used for device-to-device positioning. Sidelink-based communication can occur between devices (“UEs”) and / or with other network nodes, such as base stations. Sidelink positioning information can be used for location determination. This may include vehicle-to-everything (V2X) communication via the PC5 interface. Sidelink positioning information is transmitted via the PC5 interface and includes location, capabilities, ancillary data, and measurement reports. The following... Figure 3-24 An exemplary embodiment for sidelink communication is shown. Figure 1-2Example base stations and user equipment, as well as messaging environments, that can be applied to the sidelink communications described below are illustrated. The above description of the UE and network is applicable to each embodiment.

[0045] Figure 1 Example base station 102 is shown. This base station may also be referred to as a wireless network node. Base station 102 may be further identified as a Node B (NB, such as eNB or gNB) in a mobile telecommunications context. The example base station may include radio Tx / Rx circuitry 113 for receiving and transmitting with user equipment (UE) 104. The base station may also include network interface circuitry 116 (e.g., optical or wired interconnect, Ethernet and / or other data transmission media / protocols) for coupling the base station to the core network 110.

[0046] The base station may also include system circuitry 122. System circuitry 122 may include one or more processors 124 and / or memory 126. Memory 126 may include operations 128 and control parameters 130. Operations 128 may include instructions for execution on one or more processors 124 to support the functions of the base station. For example, these operations may process random access transmission requests from multiple UEs. Control parameters 130 may include parameters or support for the execution of operations 128. For example, control parameters may include network protocol settings, random access message format rules, bandwidth parameters, radio frequency mapping allocation, and / or other parameters.

[0047] Figure 2 An example random access messaging environment 200 is illustrated. In this environment, UE 104 can communicate with base station 102 via random access channel 252. In this example, UE 104 supports one or more subscriber identity modules (SIMs), such as SIM1 202. Electrical and physical interfaces 206 connect SIM1 202 to the rest of the user equipment hardware, for example, via system bus 210.

[0048] Mobile device 200 includes a communication interface 212, system logic 214, and user interface 218. System logic 214 may include any combination of hardware, software, firmware, or other logic. System logic 214 may be implemented using, for example, one or more system-on-chip (SoC), application-specific integrated circuit (ASIC), discrete analog and digital circuitry, and other circuitry. System logic 214 is part of an implementation of any desired functionality of UE 104. In this regard, system logic 214 may include logic facilitating, for example, decoding and playing music and video (such as MP3, MP4, MPEG, AVI, FLAC, AC3, or WAV decoding and playback); running applications; accepting user input; saving and retrieving application data; establishing, maintaining, and terminating cellular phone calls or data connections, such as internet connections; establishing, maintaining, and terminating wireless network connections, Bluetooth connections, or other connections; and displaying relevant information on user interface 218. User interface 218 and input 228 may include a graphical user interface, a touch-sensitive display, haptic feedback or other haptic output, voice or facial recognition input, buttons, switches, speakers, and other user interface elements. Other examples of input 228 include microphones, video and still image cameras, temperature sensors, vibration sensors, rotation and orientation sensors, headphone and microphone input / output jacks, universal serial bus (USB) connectors, memory card slots, radiation sensors (e.g., IR sensors), and other types of inputs.

[0049] System logic 214 may include one or more processors 216 and memory 220. Memory 220 stores, for example, control instructions 222, which the processors 216 execute to implement the desired functions of UE 104. Control parameters 224 provide and specify configuration and operational options for the control instructions 222. Memory 220 may also store any BT, WiFi, 3G, 4G, 5G, or other data 226 that UE 104 will send or has received via communication interface 212. In various embodiments, system power may be provided by a power storage device such as battery 282.

[0050] At communication interface 212, radio frequency (RF) transmission (Tx) and reception (Rx) circuitry 230 processes signal transmission and reception via one or more antennas 232. Communication interface 212 may include one or more transceivers. The transceiver may be a wireless transceiver, which includes modulation / demodulation circuitry, digital-to-analog converter (DAC), shaper, analog-to-digital converter (ADC), filter, waveform shaper, preamplifier, power amplifier, and / or other logic for transmission and reception via one or more antennas or (for some devices) via a physical (e.g., wired) medium.

[0051] The transmitted and received signals can follow any of a variety of formats, protocols, modulations (e.g., QPSK, 16-QAM, 64-QAM, or 256-QAM), channels, bit rates, and encodings. As a specific example, communication interface 212 may include a transceiver supporting transmission and reception under 2G, 3G, BT, WiFi, Universal Mobile Telecommunications System (UMTS), High-Speed ​​Packet Access (HSPA)+, and 4G / LTE standards. However, the techniques described below can be applied to other wireless communication technologies, whether originating from the 3rd Generation Partnership Project (3GPP), the GSM Association, 3GPP2, IEEE, or other partners or standards bodies.

[0052] Sidelink communication can also be referred to as sidelink messaging, sidelink relay, relay communication, or device-to-device (“D2D”) communication / messaging. Communication may occur between devices such as multiple user equipment (UE) terminals. Sidelink communication can also include sending, receiving, broadcasting, unicasting, requesting, responding, forwarding, switching, or multicasting.

[0053] Sidelink information or location information may include a Sidelink Positioning Reference Signal (SL-PRS) configuration. The SL-PRS configuration may be indicated in control signaling, control channels, one or more other channels, or Radio Resource Control (RRC) parameters. Control signaling may include Sidelink Control Information (SCI), Downlink Control Information (DCI), Medium Access Control (MAC) Control Unit (MAC CE), Non-Access Stratum (NAS), or System Information Block (SIB). Control channels include at least one of the Physical Sidelink Control Channel (PSCCH), Physical Downlink Control Channel (PDCCH), or Physical Uplink Control Channel (PUCCH). One or more other channels include at least one of the Physical Sidelink Shared Channel (PSSCH), Physical Downlink Shared Channel (PDSCH), Physical Uplink Shared Channel (PUSCH), Physical Broadcast Channel (PBCH), Physical Sidelink Feedback Channel (PSFCH), or Physical Sidelink Broadcast Channel (PSBCH).

[0054] In some embodiments, such as during emergencies (e.g., earthquakes), cellular networks may malfunction, or it may be necessary to extend the network's sidelink communication range. Therefore, relay communication can be designed to allow multiple UEs to communicate with each other via a relay UE. Although not shown, multiple UEs can exist in a relay communication chain, or a relay UE can have multiple remote UEs. The interface between the UE and the BS during relay communication is referred to as the Uu interface.

[0055] Figure 3 An example sidelink communication utilizing PC5 signaling is shown below. Figure 7-8 The sidelink communication is further described below. In some embodiments, sidelink communication can occur between a user equipment (UE), a network node, a base station, a local server, a transmit / receive point (TRP), or a location management function (LMF). (The above refers to...) Figure 1-2 The described UE 104 can be a vehicle UE, pedestrian UE, or roadside unit (RSU) with or without a known location. The UE may include a location reference unit (PRU) with or without a known location. The UE can be any UE supporting vehicle-to-everything (V2X) services and / or sidelink communication. Although illustrated as PC5 signaling, sidelink communication between the UE and the node may include other types of signaling, such as PC5-RRC signaling, sidelink control information (SCI), new logical layer signaling, or media access control unit (MAC-CE). Figure 3 The communication between the UE and the node is illustrated. The node can be... Figure 4 Any node shown.

[0056] Figure 4 An example node is shown that communicates with a user equipment (UE) via a sidelink. This node can communicate with UE 104 via a sidelink. This node may include another UE, such as a different UE 104. Alternatively, this node may be a network node. This network node is part of a network and will be referenced... Figure 5 Further description. Other example nodes include V2X application servers or transport / receive points (TRPs). In one embodiment, a location management function (LMF) can be used to improve positioning. The LMF can receive measurement / assistance information from the base station and the UE. This can be transmitted via the access and mobility management function (AMF) to calculate the UE's location. The LMF can configure the UE via the AMF, while the base station can configure the UE using the radio resource control (RRC) protocol.

[0057] Figure 5 An example network device is shown that communicates with a user equipment (UE) via a sidelink. Sidelink communication between UEs can also include a network node. This network node can include a base station, which may be an example of a next-generation radio access node (NG-RAN). The network node can also include a gNode B (gnB) or a next-generation eNode B (ng-enB). Although in Figure 4 While described separately, the network may also include a core network, a Transmit / Receive Point (TRP), or a Location Management Function (LMF).

[0058] Figure 6An example PC5 signaling is shown. Although described as PC5 signaling, this signaling can include other signaling types (including other types of sidelink and / or D2D communication, including V2X communication). This signaling can include location information, ancillary data, capability information, and / or measurement reports. See reference... Figure 7-8 Furthermore, there may be requests and responses for each signaling message. Figure 6 The signaling types / information shown can be used as example information transmitted in other embodiments.

[0059] Location information

[0060] This location information may include location or information about location / orientation. The UE may request location (e.g., Figure 8 ), or another node can request the location from the UE (e.g. Figure 7 The location request may include a sidelink positioning-specific V2X service identifier received from the upper layer. The location request may include a request to perform sidelink positioning. The location request may include a request to receive a Sidelink Positioning Reference Signal (SL PRS) from one or more other UEs, or a request to send an SL PRS to one or more other UEs. The location request may include a request to receive auxiliary data configuration from one or more other UEs, or a request to send auxiliary data configuration to one or more other UEs. The location request may include required key performance indicators (KPIs) and positioning requirements, which may include positioning accuracy, response time, horizontal accuracy, vertical accuracy, timing quality, etc. The location request may only include an Information Element (IE) instructing the UE to request other UEs to perform SL positioning. The location request may include sidelink (SL) positioning methods, such as: measuring a one-way PRS and providing a one-way measurement, or measuring a multi-way PRS and providing a round-trip measurement, or measuring the SL PRS and downlink (DL) PRS and providing a general measurement, or measuring the SL PRS and UL SRS and providing a general measurement, or measuring RSTD, or measuring the angle of arrival (AoA), or measuring the angle of departure (AoD).

[0061] The UE location response may include a successful location response indicating that the UE can perform SL positioning. Alternatively, the location response may include a location failure response indicating that the UE cannot perform SL positioning.

[0062] Capability Information

[0063] This capability may include the ability to send sidelink information to a specific communication device, the ability to receive sidelink information from a specific communication device, the ability to exchange signaling or interact with a specific communication device, the ability to forward sidelink information about a specific communication device, the ability to receive sidelink information from a specific communication device, or the ability to provide network coverage. In other examples, UE capabilities may include the ability to support positioning capabilities, the ability to transmit Positioning Reference Signals (PRS), the ability to support positioning method measurements, the ability to support aperiodic or semi-persistent PRS, the ability to transmit control information, the ability to support multiple RTT methods, or the ability to support multiple RTT measurements.

[0064] Sidelink-related capability requests may only include information elements (IEs) indicating that the UE requests sidelink capabilities. In another embodiment, sidelink-related capability requests may include indicators about which SL positioning capabilities are needed. For example, SL PRS transmission capabilities, SL PRS reception capabilities, SL PRS processing capabilities, SL PRS reporting capabilities, SL positioning calculation capabilities, or other capabilities may be required.

[0065] Sidelink-related capability configurations may include SL PRS transmission capability, indicating whether the UE can transmit periodic / semi-persistent / aperiodic SL PRS, and / or whether the UE can transmit both SL PRS and UL SRS simultaneously. In another embodiment, sidelink-related capability configurations may include SL PRS reception capability, indicating whether the UE can receive periodic / semi-persistent / aperiodic SL PRS, and / or whether the UE can receive both SL PRS and DL PRS simultaneously, or whether the UE can receive SL PRS and transmit UL SRS. In another embodiment, sidelink-related capability configurations may include SLPRS processing capability, indicating whether the UE can measure SL PRS and provide measurement values ​​(such as at least one of SL-PRS-RSRP, SL-RSRPP, SL-PRS-TOA, SL-PRS-RTOA, SL-PRS-Rx-Tx time difference, SL-PRS-RSTD, SL-PRS Rx beam index); and / or whether the UE can simultaneously measure both SL PRS and DL PRS and provide both measurement values; and / or whether the UE can simultaneously measure both SL PRS and UL SRS and provide the corresponding measurement values. In another embodiment, sidelink-related capability configuration may include SL positioning calculation capability, which indicates whether the UE can calculate a location estimate based on SL positioning, and / or whether the UE can calculate a location estimate via the uu interface based on SL positioning and traditional RAT-related / RAT-independent positioning methods. In another embodiment, sidelink-related capability configuration may include SL PRS reporting capability, such as the maximum number of target UEs from which the initiating UE can receive PRS, or the maximum number of SL PRS measurements that the UE can support.

[0066] Auxiliary data

[0067] The SL auxiliary data configuration to be transmitted by the UE can be provided by the network, provided through pre-configuration, or provided by the UE self-configuration / self-generation. Pre-configuration of SL auxiliary data can be considered the UE's default configuration. SL auxiliary data configuration can include the UE's Tx SL PRS configuration. Tx SL PRS configuration can include the SL PRS configuration that the UE can use or will transmit PRS based on the auxiliary data configuration. A UE's Tx SL PRS configuration can be the same as or different from other UEs. UEs performing SL positioning should know whether their Tx SL PRS configurations are the same or different. If different, SL PRS configuration passing between UEs may be necessary to inform other UEs of their own SL PRS configuration. Then, other UEs can correctly receive the SL PRS. SL auxiliary data information (including SL PRS configuration) is self-configured or pre-configured by the UE at the application layer / NAS layer / RRC layer. For self-configuration, how to determine the SL PRS configuration is the UE's implementation method.

[0068] The UE's auxiliary data request may only include an IE indicating that the UE requests sidelink auxiliary data. In another embodiment, the auxiliary data request may include auxiliary data for calculating SL positioning estimates, such as the target UE's location (PRU or RSU), the target UE's synchronization source / reference (PRU or RSU), the beam information of the configured SL PRS, or other examples. In another embodiment, the UE's auxiliary data request may include SL PRS configuration, such as SL PRS resource set / SL PRS resource configuration, the period of SL PRS resources / SL PRS resource set, the number of symbols occupied by SL PRS in a time slot, the start symbol of SL PRS in a time slot, the frequency location and bandwidth of SL PRS resources, SCS, comb size, silence pattern, PRS QCL information, periodic / semi-persistent / aperiodic SL PRS, etc. In another embodiment, the UE's auxiliary data request may include the requested SL PRS configuration, such as the selected PRS resource set ID / PRS resource ID (e.g., from a pre-configured one), some selected PRS features, etc.

[0069] The UE's auxiliary data response may include SL positioning methods, such as: measuring a one-way PRS and providing a one-way measurement, measuring a multi-way PRS and providing a round-trip measurement, measuring SL PRS and DL PRS and providing a general measurement, measuring SL PRS and UL SRS and providing a general measurement, or measuring RSTD, or measuring AoA, or measuring AoD. In another embodiment, the auxiliary data response may include auxiliary data used to calculate the SL positioning estimate, such as the target UE's location (PRU or RSU), the target UE's synchronization source / reference (PRU or RSU), and beam information of the configured SL PRS. In another embodiment, the auxiliary data response may include QoS requirements, such as response time, positioning accuracy, response time, horizontal accuracy, vertical accuracy, timing quality, etc. In another embodiment, the auxiliary data response may include SL PRS configuration, such as SL PRS resource set / SL PRS resource configuration, SL PRS resource / SL PRS resource set period, number of symbols occupied by SL PRS in a time slot, start symbol of SL PRS in a time slot, SL PRS resource frequency location and bandwidth, SCS, comb size, silence pattern, PRS QCL information, and whether it is a periodic / semi-persistent / aperiodic SL PRS, etc. In another embodiment, the auxiliary data response may include an identifier indicating which UE the SL PRS configuration belongs to, such as the UE ID (UEID), PC5 unicast link identifier, V2X service identifier, UE application layer ID, destination layer 2 ID, source layer 2 ID, source user information, target user information, etc.

[0070] Measurement Request / Report

[0071] A sidelink measurement request may consist solely of an IE indication. In another embodiment, a sidelink measurement request may include an indication from the UE requesting another UE to perform SL positioning based on provided auxiliary data.

[0072] Measurement requests may include:

[0073] • The selected SL PRS resource ID / SL PRS resource set ID in the auxiliary data configuration or SL PRS configuration is used to indicate to the initiating UE that it can send the selected PRS. If an SCI or MAC CE containing this content is sent, the initiating UE should start sending the corresponding SL PRS; if an SCI or MAC CE containing this content is received by another target UE, the other target UE should start receiving the corresponding SL PRS.

[0074] • The selected SL PRS resource ID / SL PRS resource set ID in the auxiliary data configuration or SL PRS configuration, used to indicate the PRS that the initiating UE wishes to receive from other target UEs. If an SCI or MAC CE containing this content is sent, the initiating UE should begin receiving the corresponding SL PRS; if an SCI or MAC CE containing this content is received by other target UEs, the other target UEs should begin sending the corresponding SL PRS.

[0075] • Deleted SL PRS resource ID / SL PRS resource set ID;

[0076] • Initiate a trigger request for SL PRS transmission based on the auxiliary data configuration or SL PRS configuration provided by the upper layer;

[0077] • Modified PRS characteristics, including SL-PRS resource ID / SL-PRS resource set ID / auxiliary data configuration ID / SLPRS configuration ID, and at least one of the following that may be carried in the MAC-CE or SCI: SL-PRS priority, SL-PRS periodicity, SL-PRS resource offset, SL-PRS resource repetition factor, SL-PRS resource time interval, SL-PRS silence pattern, SL-PRS resource power, SL-PRS sequence ID, SL-PRS comb size, SL-PRS SCS, SL-PRS-RB set, and response time. The above IEs may be modified IEs compared to pre-configured or network indications.

[0078] • The UE requires certain selected SL PRS configurations to be measured by other UEs;

[0079] • QoS requirements, such as response time, positioning accuracy, horizontal accuracy, vertical accuracy, timing quality, etc.

[0080] • SL positioning methods, such as: whether to measure a single-way PRS and provide a single-way measurement value, or measure a multi-way PRS and provide a round-trip measurement value, or measure SL PRS and DL PRS and provide a general measurement value, or measure SL PRS and UL SRS and provide a general measurement value, or measure RSTD, or measure AoA, or measure AoD; or

[0081] • Synchronization source / reference for the target UE.

[0082] The sidelink measurement report in response to the measurement request may include

[0083] At least one of SL-PRS-RSRP, SL-PRS-RSRPP, SL-PRS-TOA, SL-PRS-RTOA, SL-PRS-Rx-Tx time difference, SL-PRS-RSTD, and SL-PRS Rx beam index;

[0084] • The timestamp used for the measurement;

[0085] • Time quality or measurement quality;

[0086] • Identifiers for deriving measurement values. Such as the UE ID, PC5 unicast link identifier, V2X service identifier, peer UE's application layer ID, destination layer 2 ID, source layer 2 ID, source user information, target user information, etc.; or

[0087] • Synchronization source / reference for the target UE.

[0088] The initiating UE sends an SL PRS to other target UEs. The target UEs perform SL PRS measurements and provide SL positioning measurements to the initiating UE. The initiating UE can configure SL positioning measurements via PC5-RRC signaling, and the target UEs can respond with SL positioning measurements via PC5-RRC signaling. SL positioning measurements can be configured and processed at the UE's RRC layer. In some embodiments, configuration may include at least one of the following:

[0089] • For NR sidelink measurements, the NR sidelink measurement object indicates one or more PRS resources / one or more PRS resource sets to be measured. The one or more PRS resource IDs / one or more PRS resource set IDs that need to be measured by the UE can be included in SL-MeasObject-r16 (which is embedded in SL-MeasObjectList - SL-MeasConfig-r16 -RRCReconfigurationSidelink).

[0090] • Add PRS as a new RS type in the NR sidelink report configuration. Add SL-PRS in SL-RS-Type-r16 (which is embedded in SL-ReportConfig-r16 - SL-ReportConfigInfo-r16 - SL-ReportConfigList - SL-MeasConfig-r16 - RRCReconfigurationSidelink).

[0091] • Add at least one of the following to the report format configured in the NR sidelink report configuration: SL-PRS-RSRP, SL-RSRPP, SL-PRS-TOA, SL-PRS-RTOA, SL-PRS-Rx-Tx time difference, SL-PRS-RSTD, or SL-PRS Rx beam index. If SL-PRS-Rx-Tx time difference is configured in the report format, it means that the initiating UE wants the target UE to measure the round-trip SLPRS.

[0092] In addition to periodic or event-triggered reports, a new reporting standard specifically for SL PRS measurements has been added. The new reporting standard can be configured in sl-ReportType-r16.

[0093] • Add a new event for SL PRS measurements. For example, S3 is triggered when the UE receives a location request and needs to perform SL positioning.

[0094] • Add a new IE to indicate the PRS that needs to be measured and the measurement requirements, such as whether an additional path to the PRS needs to be measured, and the synchronization source / reference. The new IE can be included in SL-MeasConfig-r16, SL-MeasObject-r16, or SL-ReportConfigId-r16.

[0095] When the target UE receives an RRC configurations idlink with the aforementioned SL PRS measurement configuration, the target UE performs SL PRS measurements and reports them to the UE that initiated the RRC configurations idlink via the MeasurementReportSidelink. The SL PRS measurement result is added to SL-MeasResult-r16, and this SL PRS measurement result may include at least one of SL-PRS-RSRP, SL-RSRPP, SL-PRS-TOA, SL-PRS-RTOA, SL-PRS-Rx-Tx time difference, SL-PRS-RSTD, and SL-PRS Rx beam index. In another example, when the UE's RRC layer receives the measurement report, the UE can pass it to the upper layer to calculate the positioning estimate.

[0096] Figure 7 An example sidelink communication is illustrated. In one example, the UE transmits / reports information to the node in response to a request from the node. The node receives the transmitted information from the UE. In this example, the information can be requested by the node. The request / response may include information about... Figure 6 The information discussed.

[0097] Figure 8 Another example of sidelink communication is shown. In one example, the node transmits / reports information to the UE in response to a request from the UE. The UE receives the transmitted information from the node. In this example, the information can be requested by the UE. The request / response can include information about... Figure 6 The information discussed.

[0098] Figure 9 An example layer structure is shown. Figure 9 The layers shown are merely examples; in various embodiments, there may be more or fewer layers. Sidelink communication or PC5 signaling can occur at different layers, as discussed in the embodiments below.

[0099] The V2X application layer can be viewed as a logical layer that generates, carries, and / or transmits information from the V2X application server. The V2X application layer can be the same as or different from the V2X layer, and for a UE, both the V2X application and the V2X layer can be the upper layer of RRC.

[0100] The Non-Access Layer (NAS) can also be an application layer or part of an application layer. The NAS layer can be above Radio Resource Control (RRC) but below the V2X application layer. In an example embodiment, PC5-S (PC5 signaling) between UEs can be NAS layer signaling. The V2X application layer or NAS layer can indicate lower layers (such as PC5-RRC, Media Access Control (MAC), or Physical Layer (PHY)) for some control parameters used to transmit or receive V2X transmissions. The V2X application layer or NAS layer can also generate V2X service data and pass it to lower layers for transmission to another UE. This V2X service data can be carried in the PSSCH and can be transmitted via broadcast, multicast, or unicast. The transmission mode (broadcast, multicast, or unicast) is also selected and indicated by the V2X application layer or NAS layer. The indication of the transmission type can be carried in the Level 2 Side Link Control Information (SCI) in the PSSCH. In some embodiments, there can be a Packet Data Convergence Protocol (PDCP) and Radio Link Control (RLC) layer between the RRC layer and the MAC layer.

[0101] The V2X application server may reside within the UE, outside the UE (controlling multiple UEs), or in the network. If the V2X application server is in the network, it can transmit information to the UE via the uu interface. If the V2X application server is within the UE, it can transmit information to other UEs via the PC5 interface.

[0102] Figure 10 An example signaling structure with a timing-based side-link (SL) localization method is shown. Figure 10The diagram illustrates two examples of sidelink communication signaling. PC5 signaling can be transmitted at the NAS layer. PC5-RRC signaling can be transmitted at the RRC layer.

[0103] The timing-based positioning method in the sidelink can include an initiating UE transmitting multiple PRS resources (e.g., SLPRS1, SL PRS3, SL PRS5), and multiple target UEs receiving the PRS resources. Multiple target UEs can also transmit their own PRS resources (e.g., SL PRS2, SL PRS4, SL PRS6), and the initiating UE can then receive the PRS resources from the multiple target UEs. The initiating UE can measure the Reference Signal Time Difference (RSTD) between the PRS resources of different target UEs (e.g., RSTD1 and RSTD2), and the initiating UE can also measure multiple round-trip times (e.g., the RxTx time difference of the initiating UE) corresponding to each target UE between its transmitted PRS and its received PRS. Furthermore, each target UE can measure its round-trip time between the received PRS of the initiating UE and its transmitted PRS (e.g., the RxTx time difference of target UE 1, the RxTx time difference of target UE 2, and the RxTx time difference of target UE 3).

[0104] PC5 signaling can be transmitted between UEs after a unicast link is established, or before a unicast link is established. If transmitted before a unicast link is established, PC5 signaling can be transmitted via broadcast or multicast. If transmitted after a unicast link is established, PC5 signaling can be transmitted via broadcast, multicast, or unicast.

[0105] In some embodiments, V2X service data including SL positioning configuration can be broadcast / multicast. In this example, the initiating UE is a UE that wants to obtain its own location via sidelink positioning, and one or more target UEs are one or more UEs to which the initiating UE sends SL-PRS / to which it receives SL-PRS. The initiating UE may be pre-configured with a Tx SL PRS configuration and the known location of the target UEs, which can come from any source, such as GNSS or default factory settings. One or more target UEs may be pre-configured with a Tx SL PRS configuration. The two pre-configurations of Tx PRS can be the same or different. If different, it is assumed that the initiating UE and one or more target UEs know each other's Tx PRS configurations according to the pre-configuration or instructions from the V2X application layer. A list of V2X service identifiers to destination Layer 2 IDs for broadcast mapping rules can be provided to the initiating UE and one or more target UEs respectively. Each mapping rule includes one or more V2X service identifiers and a destination Layer 2 ID for broadcast or multicast.

[0106] The initiating UE and one or more target UEs configure a new V2X service type for sidelink positioning using their V2X application layer. The V2X service type can also be represented as a V2X service identifier. The initiating UE's location request can be embedded in V2X service data and broadcast or multicast to one or more target UEs. When the initiating UE broadcasts or multicasts its location request, one or more target UEs interested in that service type can send an SL-PRS according to a pre-configured PRS configuration. The initiating UE can also send an SL-PRS according to a pre-configured PRS configuration. Then, the initiating UE and one or more target UEs receive each other's SL-PRS, and they can perform SL-PRS measurements.

[0107] The aforementioned V2X service data is transparent to lower layers (RRC, MAC, PHY). On the transmission side, it can be generated at the V2X application layer and sent to lower layers for transmission. On the receiving side, V2X service data can be sent from lower layers to upper layers (NAS layer or application layer) for processing.

[0108] Figure 11 An example signaling structure with a new logical layer for sidelink positioning is shown. In one embodiment, the new logical layer may be located between the NAS layer and the RRC layer. The new logical layer can be used to transmit SL positioning-related information. The new layer may be located between the PC5-S layer and the PC5-RRC layer (NAS layer and AS layer), or between the V2X application layer and the NAS layer (e.g., ...). Figure 12 (As shown). In another embodiment, the new logical layer can run in parallel with the NAS layer, RRC layer, or application layer. The new logical layer can be included within the NAS layer or application layer, and the signaling transmitted in the new layer can be PC5 signaling or PC5-RRC signaling, or a new version of signaling, such as the SL positioning protocol. The new signaling transmitted in the new logical layer can also be NAS messages / NAS signaling.

[0109] Figure 12 Another example signaling structure with a new logical layer is shown. Figure 11 The new logical layer is located between the NAS layer and the RRC layer. Figure 12 This is an alternative implementation where a new logical layer lies between the V2X application layer and the NAS layer. The new logical layer can be used to transmit SL positioning-related information. Alternatively, the new logical layer can be included within the NAS layer or the application layer, and the signaling transmitted in the new layer can be PC5 signaling or PC5-RRC signaling, or a new version of signaling, such as the SL positioning protocol. The new signaling transmitted in the new logical layer can also be referred to as NAS messages / NAS signaling.

[0110] Figure 13An example of timing for sidelink positioning communication is shown. SL PRS can be sent periodically, semi-persistently, or dynamically. In some embodiments, SL PRS can be configured to be periodic; for periodic SL PRS, the UE can be ready to receive SL PRS when it receives a measurement request. For semi-persistent SL PRS, a lower layer can trigger some SL PRS transmissions configured from a higher layer. For dynamic SL PRS, SCI can trigger dynamic SL PRS transmissions.

[0111] Figure 14 An example of sidelink location communication utilizing PC5 signaling is shown. In this example, Figure 6 All signaling shown is transmitted via PC5-S, which can be done through the NAS layer. This includes location requests, location responses, capabilities, auxiliary data, measurement requests, and measurement reports. PC5 signaling can be dedicated to SL positioning. In other words, positioning capabilities are executed at the NAS layer. The initiating UE can send SL positioning-related control signaling via PC5 signaling in the NAS layer. SL positioning-related control signaling can be at least one of the following: UE location request, UE location response, sidelink capability request, sidelink capability configuration, UE auxiliary data request, UE auxiliary information configuration, SL measurement request, or SL measurement report.

[0112] Figure 15 An example of sidelink location communication in the new logical layer is shown. Figure 15 middle, Figure 6 All signaling shown is transmitted via a new logical layer for sidelink positioning. This includes location requests, location responses, capabilities, ancillary data, measurement requests, and measurement reports. In one embodiment, a new logical layer is introduced between the PC5-S layer and the PC5-RRC layer (NAS layer and AS layer). In another embodiment, the new logical layer runs in parallel with either the NAS layer or the RRC layer. In yet another embodiment, the new logical layer is included within the NAS layer. This embodiment illustrates the transmission of signals from... via a new logical layer for sidelink positioning... Figure 6 All signaling may be transmitted at the logic layer, but in other embodiments, only a subset of the signaling may be transmitted at the logic layer.

[0113] Figure 16 An example of sidelink positioning communication using PC5 sidelink (PC5-S) signaling and PC5 radio resource control (RRC) signaling is shown. In this example, data from... (The sentence is incomplete and requires more context to translate accurately.) Figure 6 A subset of the signals, and transmitted via PC5-RRC signaling (through the RRC layer) from Figure 6This is a subset of the signals. In this example, location requests and responses are transmitted via PC5-S, while other information is transmitted via PC5-RRC. This is just one example, and other embodiments illustrate different information transmitted via different signaling at different layers.

[0114] Location requests and location responses are transmitted in PC5-S, while capabilities, ancillary data, measurement requests, and measurement reports are transmitted in PC5-RRC. The initiating UE is a UE that wishes to obtain its own location via sidelink positioning, while one or more target UEs are one or more UEs to which the initiating UE sends / receives SL-PRS. In this example, the initiating UE and one or more target UEs can establish a unicast link via PC5-S signaling including an SL location request. After the unicast link is established, PC5-RRC signaling is used to configure control information for SL positioning. When the V2X application layer or network instructs the initiating UE to initiate SL positioning, the initiating UE can send a DIRECT LINK ESTABLISHMENTREQUEST message to multiple other target UEs for unicast link establishment. In addition to existing IEs, the initiating UE may also include at least one of the following in the DIRECT LINK ESTABLISHMENT REQUEST message:

[0115] • The SL received from the upper layer locates a specific V2X service identifier;

[0116] • Request SL location;

[0117] • Receive SL PRS requests from one or more other UEs;

[0118] • Transmit a request for SL PRS to one or more other UEs;

[0119] • Receive requests for auxiliary data configuration from one or more other UEs;

[0120] • A request to transmit auxiliary data configuration to one or more other UEs;

[0121] • Required KPIs and positioning requirements, including positioning accuracy, response time, horizontal accuracy, vertical accuracy, timing quality, etc.

[0122] • SL positioning methods, such as: whether to measure a single-way PRS and provide a single-way measurement, or measure a multi-way PRS and provide a round-trip measurement, or measure SL PRS and DL PRS and provide a general measurement, or measure SL PRS and UL SRS and provide a general measurement, or measure RSTD, or measure AoA, or measure AoD.

[0123] Multiple UEs can receive this message, and if one or more target UEs are interested in this service type (SL positioning), the target UEs can create and send a direct link establishment accept message to the initiating UE. Then, a unicast link is established between the UE pair (e.g., an initiating UE and one or more target UEs).

[0124] In another embodiment, the initiating UE can send SL location-related control signaling via PC5 signaling in the NAS layer. The initiating UE includes the aforementioned location request in the new IE within the PRC5 signaling. This PC5 signaling can be transmitted before or after the unicast link is established. This PC5 signaling can be transmitted via broadcast, multicast, or unicast.

[0125] The initiating UE and the target UE can interact with each other via PC5-RRC messages to exchange their auxiliary data configuration and UE SL positioning-related capabilities. UE SL positioning-related capability interactions include at least one of sidelink-related capability requests and sidelink-related capability responses, and can be included in UECapabilityEnquirySidelink and UECapabilityInformationSidelink, respectively. UE auxiliary data configuration interactions include at least one of auxiliary data requests and auxiliary data responses / configurations, and can be included in RRCReconfigurationSidelink. In other embodiments, IEs can be introduced in the PC5-RRC signaling to include auxiliary data requests and auxiliary data responses / configurations, respectively. In this example, the initiating UE and the target UE can independently create their auxiliary data configurations (self-configuration / self-generated ADs).

[0126] In another embodiment, if the initiating UE and the target UE have already obtained auxiliary data configurations through pre-configuration or network indication (e.g., the same or different auxiliary data configurations), the initiating UE and the target UE are allowed to modify the auxiliary data configurations via PC5-RRC signaling. For example, the SL UE capabilities and auxiliary data configurations for SL positioning can be configured in the UECapabilityEnquirySidelink, UECapabilityInformationSidelink, and / or RRCReconfigurationSidelink. In another example, some UE capabilities or some auxiliary data configurations that differ from the pre-configuration or network indication may be included in the UECapabilityEnquirySidelink, UECapabilityInformationSidelink, and / or RRCReconfigurationSidelink. In yet another example, the SL UE capabilities and / or auxiliary data configurations (or some of the UE capabilities or auxiliary data settings that differ from the pre-configuration or network indication) may include new PC5-RRC parameters and broadcast or multicast in that area.

[0127] Figure 17 Another example of sidelink positioning communication using PC5 sidelink (PC5-S) signaling and PC5 radio resource control (RRC) signaling is shown. In this example, location requests, location responses, measurement requests, and measurement responses are transmitted at the NAS layer via PC5-S signaling, while capability and ancillary data are transmitted at the RRC layer via PC5-RRC signaling. Measurement requests and measurement reports can be generated and / or processed at the NAS layer. New IEs may be included in the PC5 signaling to indicate measurement requests and measurement reports. In this example, the initiating UE and one or more target UEs can establish a unicast link via PC5-S signaling containing an SL location request. After the unicast link is established, PC5-RRC signaling is used to configure control information for SL positioning. When the V2X application layer instructs the initiating UE to initiate SL positioning, the initiating UE can send a DIRECT LINK ESTABLISHMENT REQUEST message to multiple other target UEs to establish a unicast link. In the DIRECT LINK ESTABLISHMENT REQUEST message, the initiating UE should include at least one of the following:

[0128] • The SL received from the upper layer locates a specific V2X service identifier;

[0129] • Request SL location;

[0130] • Receive SL PRS requests from one or more other UEs;

[0131] • Transmit a request for SL PRS to one or more other UEs;

[0132] • Receive requests for auxiliary data configuration from one or more other UEs;

[0133] • A request to transmit auxiliary data configuration to one or more other UEs;

[0134] • Required KPIs and positioning requirements, such as positioning accuracy, response time, horizontal accuracy, vertical accuracy, timing quality, etc.

[0135] • Required SL positioning method, such as: whether to measure a single-way PRS and provide a single-way measurement, or measure a multi-way PRS and provide a round-trip measurement, or measure SL PRS and DL PRS and provide a general measurement, or measure SL PRS and ULSRS and provide a general measurement, or measure RSTD, or measure AoA, or measure AoD.

[0136] Multiple UEs can receive this message. If one or more target UEs are interested in the service type, they will create and send a DIRECT LINK ESTABLISMENT ACCEPT message to the initiating UE. A unicast link is established between the UE pair (one initiating UE and one or more target UEs). In another example, the initiating UE can send SL location-related control signaling via PC5 signaling in the NAS layer. The initiating UE includes the aforementioned location request in a new IE within the PRC5 signaling. This PC5 signaling can be sent before or after the unicast link has been established. This PC5 signaling can be sent via broadcast, multicast, or unicast. In alternative embodiments, any signaling can be transmitted through a new logical layer instead of via PC5 signaling or PC5-RRC signaling.

[0137] Figure 18An example of sidelink location communication using PC5 Radio Resource Control (RRC) signaling is shown. Current PC5-RRC signaling may include MeasurementReportSidelink, RRCReconfigurationSidelink, RRCReconfigurationCompleteSidelink, RRCReconfigurationFailureSidelink, UECapabilityEnquirySidelink, and / or UECapabilityInformationSidelink. These PC5-RRC signaling messages can be used for unicast links and can only be transmitted after a unicast link has been established in PC5-S. When these PC5-RRC signaling messages are passed down to lower layers, they may be transmitted in the PSSCH, and the transmission type in the SCI will be set to unicast.

[0138] To reduce location latency, new IEs may be included in the PC5-RRC signaling to broadcast / multicast SL location-related information. Broadcast / multicast signaling may also exist at the RRC layer. Broadcast / multicast PC5-RRC signaling can be transmitted even without a PC5-S unicast link established, or even when a unicast link is established, a UE can still broadcast / multicast some PC5-RRC signaling to other UEs. Using these PC5-RRC signals, new IEs can be broadcast and / or multicast via PC5-RRC signaling, and these new IEs are passed to lower layers for transmission. They can also be transmitted in the PSSCH, and the broadcast type in the SCI can be set to broadcast or multicast. New SCI formats can be introduced to schedule PSSCHs containing broadcast / multicast PC5-RRC signaling.

[0139] The aforementioned SL positioning-related information can be at least one of the following: location request, location response, UE sidelink positioning-related capability request, UE sidelink positioning-related capability response / configuration, sidelink auxiliary data information request, sidelink auxiliary data information response / configuration, measurement request, and measurement report / response. The SL auxiliary data (or SL PRS configuration, such as PRS periodicity) in the RRC signaling can be incremental SL auxiliary data, which is a modification of pre-configured auxiliary data (or SL-PRS configuration, such as PRS periodicity). Alternatively, the aforementioned SL positioning-related information can be determined or generated at the NAS or application layer and passed to the RRC layer for transmission.

[0140] Figure 19Another example of sidelink location communication using PC5 Radio Resource Control (RRC) signaling is illustrated. In this example, location requests, location responses, measurement requests and responses, capabilities, and ancillary data are all transmitted at the RRC layer via PC5-RRC signaling. In this embodiment, the initiating UE and the target UE have established multiple unicast links for transmitting PC5-RRC signaling.

[0141] If an upper layer (AF, application layer, application server, V2X layer, or NAS layer) issues a location request via positioning or SL positioning, the upper layer can pass the request to the UE's RRC layer. New PC5-RRC signaling can be introduced to include the location request. Furthermore, the initiating UE and the target UE can interact with each other via unicast PC5-RRC messages regarding their auxiliary data configuration and UE SL positioning-related capabilities. UE SL positioning-related capability interactions can include at least one of sidelink-related capability requests and sidelink-related capability responses, and can be included in the UECapabilityEnquirySidelink and UECapabilityInformationSidelink, respectively. UE auxiliary data configuration interactions include at least one of auxiliary data requests and auxiliary data responses, and can be included in the RRCReconfigurationSidelink. New IEs can be introduced in the PC5-RRC signaling to include auxiliary data requests and auxiliary data responses / configurations, respectively. This can be used when the initiating UE and the target UE independently create their auxiliary data configurations (self-configuration / self-generated AD).

[0142] In another embodiment, if the initiating UE and the target UE have already obtained auxiliary data configurations through pre-configuration or network indication (the same or different auxiliary data configurations), the initiating UE and the target UE can be allowed to modify the auxiliary data configurations via PC5-RRC unicast signaling. For example, the SL UE capabilities and auxiliary data configurations for SL positioning can be configured in the UECapabilityEnquirySidelink, UECapabilityInformationSidelink, and / or RRCReconfigurationSidelink. In another example, some UE capabilities or some auxiliary data configurations that differ from the pre-configuration or network indication can be included in the UECapabilityEnquirySidelink, UECapabilityInformationSidelink, and / or RRCReconfigurationSidelink. In yet another example, SL UE capabilities and / or auxiliary data configurations (or some UE capabilities or some auxiliary data configurations that differ from the pre-configuration or network indication) can be included in new PC5-RRC parameters and broadcast or multicast in that area.

[0143] Alternatively, the aforementioned location requests, UE sidelink capabilities, and / or UE SL auxiliary data may be determined or generated at the NAS or application layer and passed to the RRC layer for transmission. Measurement configuration requests and measurement reports may be processed at the RRC layer, NAS layer, or a new layer. Measurement requests and measurement reports may be new IEs introduced at the RRC layer, NAS layer, and / or a new layer. Measurement requests may be included in the RRCReconfigurationSidelink at the RRC layer.

[0144] Figure 20An example of sidelink positioning communication for measurement is shown. Sidelink (SL) measurement requests or triggers can occur at the MAC layer of the physical (PHY) layer. Measurement requests (PRS activation / deactivation / PRS request) can occur in the SCI / MAC-CE. Regarding SL measurement requests / triggers, capabilities and ancillary data are interactive regardless of the layer at which the location request is located. In one embodiment, the lower layer triggers. The UE can be one or more ancillary data configurations, either pre-configured or indicated by the network. An ancillary data configuration can also contain one or more SL PRS configurations. There may be no ancillary data configuration; the upper layer will only provide one or more SL PRS configurations. The ancillary data configuration or SL PRS configuration becomes visible to the lower layer when PC5-RRC signaling configures the ancillary data configuration / information or SL PRS configuration and passes it to the lower layer for transmission. The lower layer can modify / add / delete the SL ancillary data configuration or SL PRS configuration provided by the upper layer, and the lower layer can also trigger SLPRS transmission or trigger SL positioning based on the SL PRS configuration provided by the upper layer. The lower layer can be the MAC layer or the PHY layer. Specifically, these layers can be MAC-CE or SCI (Level 1 SCI or Level 2 SCI), and the changes or triggers can include:

[0145] 1) The selected SL PRS resource ID / SL PRS resource set ID, used in the auxiliary data configuration or SL PRS configuration to indicate to the initiating UE that it can send the selected PRS. If an SCI or MAC CE containing this content is sent, the initiating UE should start sending the corresponding SL PRS; if an SCI or MAC CE that may include this content is received by other target UEs, the other target UEs should start receiving the corresponding SL PRS.

[0146] 2) The selected SL PRS resource ID / SL PRS resource set ID in the auxiliary data configuration or SL PRS configuration, used to indicate the PRS that the initiating UE wishes to receive from other target UEs. If an SCI or MAC CE containing this content is sent, the initiating UE should begin receiving the corresponding SL PRS; if an SCI or MAC CE containing this content is received by other target UEs, the other target UEs should begin sending the corresponding SL PRS; or

[0147] 3) Deleted SL PRS resource IDs / SL PRS resource set IDs in auxiliary data configuration or SL PRS configuration;

[0148] 4) Initiate an SL PRS transmission request based on the auxiliary data configuration or SL PRS configuration provided by the upper layer; or

[0149] 5) Modified PRS characteristics. For example, SL-PRS resource ID / SL-PRS resource set ID / auxiliary data configuration ID / SL-PRS configuration ID, and at least one of the following that may be carried in the Media Access Control Unit (MAC-CE) or SCI: SL-PRS priority, SL-PRS periodicity, SL-PRS resource offset, SL-PRS resource repetition factor, SL-PRS resource time interval, SL-PRS silence pattern, SL-PRS resource power, SL-PRS sequence ID, SL-PRS comb size, SL-PRS SCS, SL-PRS-RB set, and response time. The above IEs may be modified compared to pre-configured or network indications.

[0150] In another embodiment, the NAS or PC5-RRC layer triggers the signal. PC5 signaling or PC5-RRC signaling can also instruct other UEs to perform SL PRS measurements. This can include new PC5 signaling to instruct SL positioning measurement requests.

[0151] In another embodiment, a new layer is triggered. This new logical layer can be introduced between the PC5-S layer and the PC5-RRC layer (NAS layer and AS layer), or in parallel with either the NAS layer or the RRC layer. The new logical layer can be part of the NAS layer. SL positioning measurement requests can be transmitted and transferred through this new layer.

[0152] For side-link (SL) measurement reports, they can be reported to the RRC layer. Location estimation can be performed in the RRC layer, or the RRC layer can pass the measurement results to an upper layer (NAS or application layer) to calculate the location estimate. For side-link (SL) measurement reports, they can be reported to the NAS layer or application layer. After the UE performs SL PRS measurements, the UE can interact with the SL PRS measurement report. This measurement report is passed from the PHY layer to the NAS layer or application layer to calculate the location. There may be new PC5 signaling to include the SL positioning measurement report. For side-link (SL) measurement reports, they can be reported to a new layer. The SL positioning measurement report can be transmitted and carried through this new layer.

[0153] Figure 21 An example of sidelink location communication is shown. Figure 21 This illustrates the UE communicating with a network, which may include information about... Figure 5 The components described. The network node provides a sidelink (SL) request to the UE. The UE provides an SL location response to the network. There may be a target UE (TU) and a peer UE (PU). There may be four types of communication:

[0154] • TU is within coverage area, PU is outside coverage area: TU interacts with NW via uu interface;

[0155] • TU and PU are within coverage area: TU and PU interact with NW via the uu interface;

[0156] • TU and PU are not covered: TU and PU interact via the PC5 interface; or

[0157] •TU is not within coverage area, PU is within coverage area: PU interacts with NW via uu interface.

[0158] There are several possible interactions between the UE and the NW. For UEs within / partially within coverage area, the NW can send a location request to the UE, instructing the UE to perform SL positioning. For example... Figure 5 As shown, NW can be an LMF, AMF, NG-RAN node, V2X application server at the NW, TRP, gNB and / or ng-eNB.

[0159] Figure 22 Another example of sidelink location communication is shown. Figure 22 This illustrates the UE communicating with a network, which may include information about... Figure 5 The components described. The network node receives a sidelink (SL) request from the UE. The network node provides an SL location response to the UE. There may be a target UE (TU) and a peer UE (PU). For UEs within / partially within coverage, the UE is able to send a location request to the NW and request the NW to allocate / indicate auxiliary information.

[0160] Figure 23 An example of auxiliary information communication is shown. One or more NG-RAN nodes or UEs can report their auxiliary information to the LMF, and / or enable the NW LMF to send available auxiliary information to UEs within / partially within coverage. Figure 6 As shown, the auxiliary information may include the SL auxiliary data configuration of the UE, including the SL PRS configuration that the UE will send; the SL auxiliary data configuration of other peer UEs, including the known location of the peer UE and / or the SL PRS configuration of the peer UE; or the sidelink-related capabilities of other peer UEs.

[0161] Figure 24 Example measurement reports or location estimation communications are shown. Figure 24 This illustrates the UE communicating with a network, which may include information about... Figure 5The components described. In this embodiment, UEs within / partially covered areas are enabled to send measurement reports and / or location estimates to the NW. The NW is capable of sending measurement reports and / or location estimates to UEs within / partially covered areas. The UEs within / partially covered areas capable of sending measurement reports are the initiating UE and the corresponding target UE. The UEs within / partially covered areas capable of sending location estimates are the initiating UE with location calculation capabilities and / or the target UE with location calculation capabilities. The initiating UE may have calculation capabilities and can perform SL PRS measurements and calculate locations itself. The initiating UE may not have calculation capabilities, while other UEs near the initiating UE may have calculation capabilities. The network (NG-RAN node or LMF) may have calculation capabilities.

[0162] In alternative embodiments, UEs within / partially covered coverage areas may be allowed to perform both uu-based positioning and SL positioning. UEs within / partially covered coverage areas may be instructed by the NW to simultaneously perform uu-based PRS measurements and SL PRS measurements. Uu-based positioning can be specified in R16 and R17, in the RAT-related / RAT-independent positioning methods between the UE, NG-RAN node, and LMF. For SL positioning measurements, the signaling flow may include at least one of the following transmissions: from peer UE to target UE, from target UE to peer UE (calculating UE), from target UE to NG-RAN node, from target UE to LMF, from peer UE to NG-RAN node, and from peer UE to LMF. In another embodiment, for SL positioning, the location estimation transmission may be from target UE to LMF, from peer UE to LMF, from peer UE to target UE and then to LMF, from peer UE to target UE, or from LMF to target UE.

[0163] The aforementioned systems and processes can be encoded in signal-bearing media, computer-readable media (such as memory), programmed within devices (such as one or more integrated circuits, one or more processors), or processed by a controller or computer. The data can be analyzed in a computer system and used to generate a spectrum. If the method is executed by software, the software can reside in or interface with a storage device, synchronizer, communication interface, or non-volatile or volatile memory communicating with a transmitter. Circuitry or electronic equipment designed to transmit data to another location. Memory can include an ordered list of executable instructions for implementing logical functions. The described logical functions or any system elements can be implemented using optical circuitry, digital circuitry, source code, analog circuitry, analog sources (e.g., analog electrical signals, audio signals, or video signals), or combinations thereof. The software can be embodied in any computer-readable or signal-bearing medium for use by or in conjunction with an instruction-executable system, apparatus, or device. Such a system can include a computer-based system, a processor-integrated system, or another system that can selectively retrieve instructions from an instruction-executable system, apparatus, or device that can also execute instructions.

[0164] "Computer-readable medium," "machine-readable medium," "transmission signal" medium, and / or "signal-bearing medium" can include any device that stores, transmits, propagates, or transmits software used by or associated with an instruction-executable system, apparatus, or device. Machine-readable media may optionally be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, devices, or transmission media. A non-exhaustive list of examples of machine-readable media would include: electrically connected "electronic devices" with one or more wires, portable disks or optical discs, volatile memory such as random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), or optical fiber. Machine-readable media may also include tangible media on which software is printed, as the software may be electronically stored as an image or another format (e.g., by optical scanning) and then compiled and / or interpreted or otherwise processed. The processed medium may then be stored in computer and / or machine memory.

[0165] The illustrations of the embodiments described herein are intended to provide a general understanding of the structures of various embodiments. These illustrations are not intended as a complete description of all elements and features of apparatuses and systems utilizing the structures or methods described herein. Many other embodiments may become apparent to those skilled in the art upon review of this disclosure. Other embodiments may be utilized and derived from this disclosure, allowing for structural and logical substitutions and changes without departing from the scope of this disclosure. Furthermore, the illustrations are merely representative and may not be drawn to scale. Some scales in the illustrations may be enlarged, while others may be reduced. Therefore, this disclosure and the accompanying drawings should be considered illustrative rather than restrictive.

[0166] One or more embodiments of this disclosure are individually and / or collectively referred to herein as the “invention”, and are for convenience only and are not intended to limit the scope of this application to any particular invention or inventive concept. Furthermore, although specific embodiments have been shown and described herein, it should be understood that any subsequent arrangements designed to perform the same or similar purposes may replace the specific embodiments shown. This disclosure is intended to cover any and all subsequent adaptations or variations of the various embodiments. Combinations of the above embodiments and other embodiments not specifically described herein will be apparent to those skilled in the art upon review of the description.

[0167] The phrase "coupled" is defined as a direct connection or an indirect connection via one or more intermediate components. Such intermediate components may include hardware-based and software-based components. Variations in the arrangement and type of components may be made without departing from the spirit or scope of the claims set forth herein. Additionally, different or fewer components may be provided.

[0168] The subject matter disclosed above should be considered illustrative rather than restrictive, and the appended claims are intended to cover all such modifications, enhancements, and other embodiments that fall within the true spirit and scope of this disclosure. Therefore, to the fullest extent permitted by law, the scope of this disclosure will be determined by the broadest permissible interpretation of the appended claims and their equivalents, and should not be construed as limited by the foregoing detailed description. Although various embodiments of this disclosure have been described, it will be apparent to those skilled in the art that many more embodiments and implementations may be possible within the scope of this disclosure. Therefore, this disclosure is not limited except as provided in the appended claims and their equivalents.

Claims

1. A method for wireless communication, comprising: The user equipment (UE) receives sidelink positioning information via a first signaling, wherein the first signaling includes signaling generated in a new logical layer, which is different from the non-access stratum (NAS), radio resource control (RRC), application layer, medium access control (MAC), and physical layer (PHY). Furthermore, the first signaling is different from PC5-S signaling, PC5-RRC signaling, NAS signaling, sidelink control information (SCI) signaling, and RRC signaling. The sidelink positioning information includes at least one of the following: sidelink positioning capability request, sidelink positioning capability response, sidelink auxiliary data request, sidelink auxiliary data response, sidelink measurement request, and sidelink measurement report.

2. The method according to claim 1, wherein, The sidelink location information is received from another node, which includes at least one of a network node and another UE; and wherein the network node includes at least one of a location management function (LMF) and a gNB.

3. The method according to claim 1 or 2, wherein, The sidelink location information is received from a network node, and the method further includes: Receive at least one of sidelink auxiliary data for the UE and sidelink auxiliary data for one or more associated peer UEs from the network node.

4. The method according to claim 1 or 2, wherein, The new logical layer is located between the application layer and the NAS layer.

5. The method according to claim 1 or 2, wherein, The received sidelink positioning information includes a request to transmit a sidelink positioning reference signal (SL-PRS).

6. The method according to claim 1 or 2, wherein, The received sidelink positioning information includes the sidelink positioning capability response, which includes an indication of whether the UE sending the sidelink positioning capability response can measure at least one of the following: SL-PRS reference signal received power SL-PRS-RSRP, SL-PRS reference signal received power SL-PRS-RSRPP for each path of the SL-PRS reference signal, SL-PRS reference signal reference time of arrival SL-PRS-RTOA, and SL-PRS reference signal time difference SL-PRS-RSTD.

7. The method according to claim 1 or 2, wherein, The received sidelink positioning information includes the sidelink auxiliary data request, which includes at least one of the UE's location request and the UE's synchronization information auxiliary data request.

8. The method according to claim 1 or 2, wherein, The received sidelink positioning information includes the sidelink auxiliary data response, which includes at least one of the following: auxiliary data for calculating the sidelink positioning estimate, a sidelink positioning reference signal (SL-PRS) configuration, and an identifier for identifying the SL-PRS configuration; and wherein... The auxiliary data used to calculate the sidelink positioning estimate includes at least one of the following: the UE's location, the UE's synchronization source, and the UE's synchronization reference. The SL-PRS configuration includes at least one of the following: the period of the SL-PRS resource, the number of symbols occupied by the SL-PRS in the time slot, the starting symbol of the SL-PRS in the time slot, the frequency position of the SL-PRS resource, the bandwidth, and the comb size; and The identifier used to identify the SL-PRS configuration includes the UE application layer ID.

9. The method according to claim 1 or 2, wherein, The received sidelink location information includes the sidelink measurement request, which includes an SL-PRS resource identifier indicating the SL-PRS resource to be received.

10. The method according to claim 1 or 2, wherein, The received sidelink positioning information includes the sidelink measurement report, which includes at least one of the following: the received power RSRP of the sidelink positioning reference signal SL-PRS, the received power SL-PRS-RSRPP of each path of the SL-PRS reference signal, the time of arrival TOA of the SL-PRS, the time difference between SL-PRS Rx and Tx, the time difference RSTD of the SL-PRS reference signal, the timestamp used for measurement, the time quality, the measurement quality, the identifier of the measured SL-PRS, and the identifier of the measured UE.

11. The method according to claim 1 or 2, wherein, The sidelink positioning information includes SL-PRS priority and SL-PRS periodicity.

12. The method according to claim 1 or 2, wherein, The sidelink positioning information includes information elements for indicating that the sidelink positioning reference signal SL-PRS needs to be measured and the measurement configuration.

13. The method according to claim 1 or 2, wherein, The sidelink positioning information includes information elements for indicating the sidelink positioning reference signal (SL-PRS) measurement results, wherein the SL-PRS measurement results include the reference signal received power (RSRP) of the SL-PRS.

14. A user equipment (UE) comprising a memory storing computer instructions and at least one processor, wherein, The at least one processor is configured to read computer instructions from the memory to implement the method according to any one of claims 1-13.

15. A method for wireless communication, comprising: The first node sends sidelink location information via a first signaling, wherein the first signaling includes signaling generated in a new logical layer, which is different from the Non-Access Stratum (NAS) layer, Radio Resource Control (RRC) layer, Application Layer, Medium Access Control (MAC) layer, and Physical Layer (PHY) layer, and the first signaling is different from PC5-S signaling, PC5-RRC signaling, NAS signaling, Sidelink Control Information (SCI) signaling, and RRC signaling, and wherein the sidelink location information includes at least one of the following: sidelink location capability request, sidelink location capability response, sidelink auxiliary data request, sidelink auxiliary data response, sidelink measurement request, and sidelink measurement report.

16. A wireless communication device, comprising a memory and at least one processor, wherein, The at least one processor is configured to read instructions from the memory to implement the method according to claim 15.

17. A computer program product comprising computer-readable program medium code stored thereon, the code, when executed by a processor, causing the processor to perform the method according to any one of claims 1 to 13, 15.

Images