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WO2025037265A1 - Aide au positionnement de liaison latérale - Google Patents

Aide au positionnement de liaison latérale Download PDF

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Publication number
WO2025037265A1
WO2025037265A1 PCT/IB2024/057923 IB2024057923W WO2025037265A1 WO 2025037265 A1 WO2025037265 A1 WO 2025037265A1 IB 2024057923 W IB2024057923 W IB 2024057923W WO 2025037265 A1 WO2025037265 A1 WO 2025037265A1
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WO
WIPO (PCT)
Prior art keywords
positioning
prs
transmission
sidelink
pct
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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PCT/IB2024/057923
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English (en)
Inventor
Robin Rajan THOMAS
Hyung-Nam Choi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lenovo Singapore Pte Ltd
Original Assignee
Lenovo Singapore Pte Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US18/805,183 external-priority patent/US20250063576A1/en
Application filed by Lenovo Singapore Pte Ltd filed Critical Lenovo Singapore Pte Ltd
Priority to AU2024326275A priority Critical patent/AU2024326275A1/en
Priority to CN202480022540.1A priority patent/CN120958765A/zh
Publication of WO2025037265A1 publication Critical patent/WO2025037265A1/fr
Priority to MX2025011051A priority patent/MX2025011051A/es
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • a wireless communications system may include one or multiple network communication devices, such as base stations, which may support wireless communications for one or multiple user communication devices, which may be otherwise known as user equipment (UE), or other suitable terminology.
  • the wireless communications system may support wireless communications with one or multiple user communication devices by utilizing resources of the wireless communication system (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers, or the like).
  • the wireless communications system may support wireless communications across various radio access technologies including third generation (3G) radio access technology, fourth generation (4G) radio access technology, fifth generation (5G) radio access technology, among other suitable radio access technologies beyond 5G (e.g., sixth generation (6G)).
  • “or” as used in a list of items indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C).
  • the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure.
  • a “set” may include one or more elements.
  • Some implementations of the method and apparatuses described herein may further include to transmit, from a UE to a network equipment (NE), a configuration message including an indication to perform one or more of sidelink positioning reference signal (SL-PRS) or SL positioning data message transmission, the configuration message including one or more SL positioning parameters; and receive, from the second apparatus, a resource configuration message including a set of time-frequency resources in which to perform the one or more of the SL-PRS or SL positioning data message transmission [0007]
  • the UE receives a higher-layer trigger to perform the one or more of the SL-PRS or SL positioning data message transmission; the higher-layer trigger includes one or more of sidelink positioning protocol (SLPP) layer,
  • SLPP sidelink positioning protocol
  • the UE receives a system information message including one or more common SL positioning configurations, the one or more common SL positioning configurations including at least one of a SL positioning radio bearer configuration list, SL-PRS priority, positioning message priority, SL positioning frequency information list, SL-PRS/SL positioning area validity information or SL positioning measurement common information;
  • the UE includes one or more of a target UE, an anchor UE, a server UE, or an apparatus configured to perform one or more of SL-PRS or SL positioning data message transmission;
  • the configuration message includes one or more of: a SL positioning transmission resource request; at least one of a SL positioning receiver unicast, groupcast, or broadcast destination list; one or more
  • Some implementations of the method and apparatuses described herein may further include transmitting, from the UE to a NE, a configuration message including an indication to perform one or more of SL-PRS or SL positioning data message transmission, the configuration message including one or more SL positioning parameters; and receiving, from the NE, a resource configuration message including a set of time-frequency resources in which to perform the one or more of the SL-PRS or SL positioning data message transmission.
  • Some implementations of the method and apparatuses described herein further include receiving a higher-layer trigger to perform the one or more of the SL-PRS or SL positioning data message transmission; the higher-layer trigger includes one or more of sidelink positioning protocol (SLPP) layer, vehicle to everything (V2X) layer, ProSe layer, ranging layer, SL positioning layer, or sidelink positioning application layer; receiving the higher-layer trigger Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No.
  • SLPP sidelink positioning protocol
  • V2X vehicle to everything
  • SLPP sidelink positioning protocol layer
  • PC5 RRC PC5 RRC
  • PC5-S PC5-S
  • lower layer signaling including one or more of first stage SCI, first stage MAC CE, second stage SCI, or second stage MAC CE
  • the configuration message includes one or more of a SL positioning QoS profile, at least one transport QoS profile indicating SL positioning transport QoS parameters,
  • Some implementations of the method and apparatuses described herein further include receiving a system information message including one or more common SL positioning configurations, the one or more common SL positioning configurations including at least one of a SL positioning radio bearer configuration list, SL-PRS priority, positioning message priority, SL positioning frequency information list, SL-PRS/SL positioning validity configuration information including time-based (e.g., a timer, a validity time, and so forth) and/or area-based validity, e.g., zone information, physical cell identity (PCI), system information block (SIB) area validity, Cell identifiers (IDs), SL positioning measurement common information, etc.;
  • the UE includes one or more of a target UE, an anchor UE, a server UE, or an apparatus configured to perform one or more of SL-PRS or SL positioning data message transmission;
  • the configuration message includes one or more of: a SL positioning transmission resource request; at least one of a SL positioning receiver unicast, groupcast, or broadcast
  • Some implementations of the method and apparatuses described herein may further include to a processor to transmit, from a first apparatus to a second apparatus, a configuration message including an indication to perform one or more of SL-PRS or SL positioning data Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 5 message transmission, the configuration message including one or more SL positioning parameters; and receive, from the second apparatus, a resource configuration message including a set of time-frequency resources in which to perform the one or more of the SL-PRS or SL positioning data message transmission.
  • the processor receives a higher-layer trigger to perform the one or more of the SL-PRS or SL positioning data message transmission;
  • the higher-layer trigger includes one or more of sidelink positioning protocol (SLPP) layer, vehicle to everything (V2X) layer, ProSe layer, ranging layer, SL positioning layer, or sidelink positioning application layer;
  • the at least one controller is configured to cause the processor to receive the higher-layer trigger from a UE via one or more of: higher-layer signaling including one or more of sidelink positioning protocol layer (SLPP), PC5 radio resource control (RRC), or PC5-S; or lower layer signaling including one or more of first stage SCI, first stage MAC CE, second stage SCI, or second stage MAC CE;
  • the configuration message includes one or more of a SL positioning QoS profile, at least one transport QoS profile indicating SL positioning transport QoS parameters, a SL positioning session identifier, SL-PRS transmission characteristics, or one or
  • the first apparatus includes one or more of a target UE, an anchor UE, a server UE, or an apparatus configured to perform one or more of SL-PRS or SL positioning data message transmission;
  • the configuration message includes one or more of: a SL positioning transmission resource request; at least one of a SL positioning receiver unicast, groupcast, or broadcast destination list; one or more of a SL positioning transmitter or receiver frequency list; SL positioning UE type; one or more SL positioning capabilities; a SL positioning transmission resource discovery request; a SL positioning destination identifier; a SL positioning cast type; or a coverage status of a discovered UE;
  • the configuration message includes one or more of SL-PRS dedicated shared pools for at least one of mode 1 and Scheme 1 transmission or mode 2 and scheme 2 transmission;
  • the configuration message includes one or more SL-PRS and SL communication data dedicated Attorney Docket No.
  • Some implementations of the method and apparatuses described herein may further include to receive, at an NE from a second apparatus, a configuration message including an indication to perform one or more of SL-PRS or SL positioning data message transmission, the configuration message including one or more SL positioning parameters; and transmit, to the second apparatus, a resource configuration message including a set of time-frequency resources in which to perform the one or more of the SL-PRS or SL positioning data message transmission.
  • the NE transmits a system information message including one or more common SL positioning configuration;
  • the one or more common SL positioning configurations include at least one of a SL positioning radio bearer configuration list, SL-PRS priority, positioning message priority, SL positioning frequency information list, SL-PRS/SL positioning area validity information or SL positioning measurement common information.
  • Some implementations of the method and apparatuses described herein may further include receiving, at the NE and from a UE, a configuration message including an indication to perform one or more of SL-PRS or SL positioning data message transmission, the configuration message including one or more SL positioning parameters; and transmitting, to the UE, a resource configuration message including a set of time-frequency resources in which to perform the one or more of the SL-PRS or SL positioning data message transmission.
  • Some implementations of the method and apparatuses described herein may further include transmitting a system information message including one or more common SL positioning configurations; the one or more common SL positioning configurations include at least one of a SL positioning radio bearer configuration list, SL-PRS priority, positioning message priority, SL positioning frequency information list, SL-PRS/SL positioning area validity information or SL positioning measurement common information.
  • Some implementations of the method and apparatuses described herein may further include to generate a semi-static configuration of one or more SL-PRS transmission Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No.
  • the semi- static configuration is associated with one or more of a validity time or a validity area; the NE transmits the semi-static configuration as one or more of a solicited message or an unsolicited message; the NE transmits, to the UE, an indication of unavailability of SL positioning semi- static configuration;
  • the SL-PRS transmission characteristics include one or more of: SL positioning dedicated resource pool identifier for one or more of Mode 1 or Scheme 1 SL-PRS transmission; SL positioning dedicated resource pool identifier for one or more of Mode 1 or Scheme 1 SL positioning transmission; SL positioning dedicated resource pool identifier for one or more of Mode 2 or Scheme 2 SL-PRS transmission; SL positioning dedicated resource pool identifier for one or more of Mode 2 or Scheme 2 SL positioning transmission; SL positioning shared resource pool pool
  • Some implementations of the method and apparatuses described herein may further include generating, at a NE, a semi-static configuration of one or more SL-PRS transmission characteristics including one or more SL positioning or shared resource pools; and transmitting the semi-static configuration to a UE.
  • the semi- static configuration is associated with one or more of a validity time or a validity area; transmitting the semi-static configuration as one or more of a solicited message or an unsolicited Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No.
  • the SL-PRS transmission characteristics include one or more of: SL positioning dedicated resource pool identifier for one or more of Mode 1 or Scheme 1 SL-PRS transmission; SL positioning dedicated resource pool identifier for one or more of Mode 1 or Scheme 1 SL positioning transmission; SL positioning dedicated resource pool identifier for one or more of Mode 2 or Scheme 2 SL-PRS transmission; SL positioning dedicated resource pool identifier for one or more of Mode 2 or Scheme 2 SL positioning transmission; SL positioning shared resource pool identifier for one or more of Mode 1 or Scheme 1 SL-PRS positioning transmission; SL positioning shared resource pool identifier for one or more of Mode 1 or Scheme 1 SL positioning transmission; SL positioning shared resource pool identifier for one or more of Mode 1 or Scheme 1 SL positioning transmission; SL positioning shared resource pool identifier for one or more of Mode 2 or Scheme 2 SL-PRS positioning transmission; SL positioning shared resource pool identifier for one or more of Mode 2 or Scheme 2 SL positioning transmission; or more shared resource pool identifier for one or more of Mode
  • Some implementations of the method and apparatuses described herein include transmitting the semi-static configuration via one or more of UE specific signaling or broadcast signaling; one or more of: activating the semi-static configuration via one or more of UE specific signaling or broadcast signaling; or deactivating the semi-static configuration via one or more of UE specific signaling or broadcast signaling.
  • BRIEF DESCRIPTION OF THE DRAWINGS [0025] Figure 1 illustrates an example of a wireless communications system in accordance with aspects of the present disclosure. [0026] Figure 2 illustrates an example of system for NR beam-based positioning in accordance with aspects of the present disclosure. [0027] Figure 3 illustrates example scenarios for absolute and relative positioning scenarios.
  • Figure 4 illustrates an example of a multi-cell Round Trip Time (RTT) procedure in accordance with aspects of the present disclosure.
  • RTT Round Trip Time
  • Figure 5 illustrates an example of a system for relative range estimation using a gNB RTT positioning framework
  • Figure 6 illustrates an example procedure to enable a UE to obtain sidelink positioning and/or ranging location results.
  • Figure 7 illustrates a procedure to enable a location services (LCS) Client and/or an AF to obtain ranging and/or sidelink positioning location results for a group of n UEs.
  • LCS location services
  • Figure 8 illustrates an example procedure for ranging and/or SL positioning control such as for UE-only operation.
  • Figure 9 illustrates an example procedure for a device to initiate a request for SLPP message data exchange and/or SL-PRS transmission with the serving gNB in accordance with aspects of the present disclosure.
  • Figure 10 illustrates an example of a procedure that supports sidelink positioning assistance in accordance with aspects of the present disclosure.
  • Figure 11 illustrates an example of a procedure that supports sidelink positioning assistance in accordance with aspects of the present disclosure.
  • Figure 12 illustrates an example of a procedure that supports sidelink positioning assistance in accordance with aspects of the present disclosure.
  • Figure 13 illustrates an example of a UE in accordance with aspects of the present disclosure.
  • Figure 14 illustrates an example of a processor in accordance with aspects of the present disclosure.
  • Figure 15 illustrates an example of a NE in accordance with aspects of the present disclosure.
  • Figure 16 illustrates a flowchart of a method performed by a UE in accordance with aspects of the present disclosure.
  • Figure 17 illustrates a flowchart of a method performed by a NE in accordance with aspects of the present disclosure.
  • FIG. 18 illustrates a flowchart of a method performed by a NE in accordance with aspects of the present disclosure.
  • DETAILED DESCRIPTION [0043] SL positioning frameworks have been discussed to support varying target positioning parameters across different use cases. SL positioning, for example, is intended to be applied for a variety of use-cases such as V2X, public safety, IIoT and commercial use cases. One aim of SL positioning is to determine absolute and relative position of a UE by using SL positioning methods such as SL RTT-type methods including single-sided and double-sided RTT, SL-AoA and SL-time difference of arrival (TDOA).
  • SL RTT-type methods including single-sided and double-sided RTT, SL-AoA and SL-time difference of arrival (TDOA).
  • SL positioning can utilize new SL PRS that is transmitted over the PC5 interface and can be supported in various coverage scenarios (e.g., in- coverage, partial coverage, and out-of-coverage scenarios) and for PC5 only and joint PC5-Uu- based operation scenarios. Further, for exchanging SL positioning related information between UEs over the PC5 interface a new protocol denoted as SLPP has been discussed.
  • positioning assistance data delivery including DL-PRS (downlink positioning reference signal) configuration can be managed by a location server, e.g., LMF.
  • the location server can initiate a PRS configuration (e.g., using a NRPPa PRS CONFIGURATION REQUEST message) to NG-RAN nodes including serving and neighboring gNBs to configure PRS resources and receive a response message, e.g., NRPPa PRS CONFIGURATION RESPONSE message from the applicable gNB.
  • a PRS configuration can be semi-static in nature and may not change frequently unless requested to do so using an on-demand NRPPa PRS configuration procedure.
  • the location server can request PRS configuration based on the knowledge of the received positioning QoS and subsequent selected positioning method.
  • this disclosure presents systems, apparatuses and methods for enhanced SL mechanisms and procedures to enable SL positioning assistance data delivery in different scenarios with and without location server involvement and considering different types of coverage scenarios.
  • Implementations discussed herein for instance, address scenarios of no location server involvement and UE-only operation.
  • a serving gNB may need to receive information about the positioning QoS and thereby allocate SL-PRS resources based on the number of UEs involved in a particular SL positioning session as well as the configured positioning technique.
  • a location server can deliver the SL-PRS assistance data (e.g., Mode 1 and Mode 2 SL-PRS resources) to UE on a semi-static manner. Further, if the Mode 1 resources are dynamic, the location server can provide the SL-PRS assistance data to UEs in unsolicited manner including information such as validity time. In further implementations, if a UE requests SL PRS assistance data from the location server, the UE can add an indication about a list of discovered UEs and their status, e.g. whether the discovered UEs are in-coverage or out-of- coverage.
  • SL-PRS assistance data e.g., Mode 1 and Mode 2 SL-PRS resources
  • the described techniques enable initiation of the sharing of SL positioning information with an NG-RAN node including a request for SL-PRS and SL positioning resource configurations based on desired carrier frequencies for SL positioning transmission and reception, positioning QoS and transport QoS profiles for SL-PRS and/or SL positioning data messages is detailed. Further, the described techniques enable provision of semi-static SL positioning assistance data collected from multiple NG-RAN nodes by a location server, e.g., LMF. Still further, the described techniques provide indications of discovered UEs for a SL positioning session and an associated coverage status of the discovered UEs.
  • FIG. 1 illustrates an example of a wireless communications system 100 in accordance with aspects of the present disclosure.
  • the wireless communications system 100 may include one or more NE 102, one or more UE 104, and a core network (CN) 106.
  • the wireless communications system 100 may support various radio access technologies.
  • CN core network
  • the wireless communications system 100 may be a 4G network, such as an LTE network or an LTE-Advanced (LTE-A) network.
  • the wireless communications system 100 may be a NR network, such as a 5G network, a 5G- Advanced (5G-A) network, or a 5G ultrawideband (5G-UWB) network.
  • the wireless communications system 100 may be a combination of a 4G network and a 5G network, or other suitable radio access technology including Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20.
  • IEEE Institute of Electrical and Electronics Engineers
  • the wireless communications system 100 may support radio access technologies beyond 5G, for example, 6G. Additionally, the wireless communications system 100 may support technologies, such as time division multiple access (TDMA), frequency division multiple access (FDMA), or code division multiple access (CDMA), etc.
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • CDMA code division multiple access
  • the one or more NE 102 may be dispersed throughout a geographic region to form the wireless communications system 100.
  • One or more of the NE 102 described herein may be or include or may be referred to as a network node, a base station, a network element, a network function, a network entity, a radio access network (RAN), a NodeB, an eNodeB (eNB), a next- generation NodeB (gNB), or other suitable terminology.
  • RAN radio access network
  • NodeB NodeB
  • eNB eNodeB
  • gNB next- generation NodeB
  • An NE 102 and a UE 104 may communicate via a communication link, which may be a wireless or wired connection.
  • an NE 102 and a UE 104 may perform wireless communication (e.g., receive signaling, transmit signaling) over a Uu interface.
  • An NE 102 may provide a geographic coverage area for which the NE 102 may support services for one or more UEs 104 within the geographic coverage area.
  • an NE 102 and a UE 104 may support wireless communication of signals related to services (e.g., voice, video, packet data, messaging, broadcast, etc.) according to one or multiple radio access technologies.
  • an NE 102 may be moveable, for example, a satellite associated with a non-terrestrial network (NTN).
  • NTN non-terrestrial network
  • different geographic coverage areas associated with the same or different radio access technologies may overlap, but the different geographic coverage areas may be associated with different NE 102.
  • the one or more UEs 104 may be dispersed throughout a geographic region of the wireless communications system 100.
  • a UE 104 may include or may be referred to as a remote unit, a mobile device, a wireless device, a remote device, a subscriber device, a transmitter device, a receiver device, or some other suitable terminology.
  • the UE 104 may be referred to as a unit, a station, a terminal, or a client, among other examples.
  • Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 13
  • the UE 104 may be referred to as an Internet-of-Things (IoT) device, an Internet-of-Everything (IoE) device, or machine-type communication (MTC) device, among other examples.
  • IoT Internet-of-Things
  • IoE Internet-of-Everything
  • MTC machine-type communication
  • a UE 104 may be able to support wireless communication directly with other UEs 104 over a communication link.
  • a UE 104 may support wireless communication directly with another UE 104 over a device-to-device (D2D) communication link.
  • D2D device-to-device
  • the communication link may be referred to as a sidelink.
  • a UE 104 may support wireless communication directly with another UE 104 over a PC5 interface.
  • An NE 102 may support communications with the CN 106, or with another NE 102, or both.
  • an NE 102 may interface with other NE 102 or the CN 106 through one or more backhaul links (e.g., S1, N2, N6, or other network interface).
  • the NE 102 may communicate with each other directly.
  • the NE 102 may communicate with each other indirectly (e.g., via the CN 106).
  • one or more NE 102 may include subcomponents, such as an access network entity, which may be an example of an access node controller (ANC).
  • An ANC may communicate with the one or more UEs 104 through one or more other access network transmission entities, which may be referred to as a radio heads, smart radio heads, or transmission-reception points (TRPs).
  • TRPs transmission-reception points
  • the CN 106 may support user authentication, access authorization, tracking, connectivity, and other access, routing, or mobility functions.
  • the CN 106 may be an evolved packet core (EPC), or a 5G core (5GC), which may include a control plane entity that manages access and mobility (e.g., a mobility management entity (MME), an access and mobility management functions (AMF)) and a user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P- GW), or a user plane function (UPF)).
  • EPC evolved packet core
  • 5GC 5G core
  • MME mobility management entity
  • AMF access and mobility management functions
  • S-GW serving gateway
  • PDN gateway packet data network gateway
  • UPF user plane function
  • the control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management (e.g., data bearers, signal bearers, etc.) for the one or more UEs 104 served by the one or more NE 102 associated with the CN 106.
  • NAS non-access stratum
  • the CN 106 may communicate with a packet data network over one or more backhaul links (e.g., via an S1, N2, N6, or other network interface).
  • the packet data network may include an application server.
  • one or more UEs 104 may Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 14 communicate with the application server.
  • a UE 104 may establish a session (e.g., a protocol data unit (PDU) session, or the like) with the CN 106 via an NE 102.
  • the CN 106 may route traffic (e.g., control information, data, and the like) between the UE 104 and the application server using the established session (e.g., the established PDU session).
  • the PDU session may be an example of a logical connection between the UE 104 and the CN 106 (e.g., one or more network functions of the CN 106).
  • the NEs 102 and the UEs 104 may use resources of the wireless communications system 100 (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers)) to perform various operations (e.g., wireless communications).
  • the NEs 102 and the UEs 104 may support different resource structures.
  • the NEs 102 and the UEs 104 may support different frame structures.
  • the NEs 102 and the UEs 104 may support a single frame structure.
  • the NEs 102 and the UEs 104 may support various frame structures (i.e., multiple frame structures).
  • the NEs 102 and the UEs 104 may support various frame structures based on one or more numerologies.
  • One or more numerologies may be supported in the wireless communications system 100, and a numerology may include a subcarrier spacing and a cyclic prefix.
  • a time interval of a resource (e.g., a communication resource) may be organized according to frames (also referred to as radio frames). Each frame may have a duration, for example, a 10 millisecond (ms) duration. In some implementations, each frame may include multiple subframes. For example, each frame may include 10 subframes, and each subframe may have a duration, for example, a 1 ms duration. In some implementations, each frame may Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No.
  • each subframe of a frame may have the same duration.
  • a time interval of a resource e.g., a communication resource
  • a subframe may include a number (e.g., quantity) of slots. The number of slots in each subframe may also depend on the one or more numerologies supported in the wireless communications system 100.
  • Each slot may include a number (e.g., quantity) of symbols (e.g., Orthogonal Frequency Division Multiplexing (OFDM) symbols).
  • OFDM Orthogonal Frequency Division Multiplexing
  • the number (e.g., quantity) of slots for a subframe may depend on a numerology.
  • a slot For a normal cyclic prefix, a slot may include 14 symbols.
  • a slot For an extended cyclic prefix (e.g., applicable for 60 kHz subcarrier spacing), a slot may include 12 symbols.
  • an electromagnetic (EM) spectrum may be split, based on frequency or wavelength, into various classes, frequency bands, frequency channels, etc.
  • the wireless communications system 100 may support one or multiple operating frequency bands, such as frequency range designations FR1 (410 MHz – 7.125 GHz), FR2 (24.25 GHz – 52.6 GHz), FR3 (7.125 GHz – 24.25 GHz), FR4 (52.6 GHz – 114.25 GHz), FR4a or FR4-1 (52.6 GHz – 71 GHz), and FR5 (114.25 GHz – 300 GHz).
  • FR1 410 MHz – 7.125 GHz
  • FR2 24.25 GHz – 52.6 GHz
  • FR3 7.125 GHz – 24.25 GHz
  • FR4 (52.6 GHz – 114.25 GHz
  • FR4a or FR4-1 52.6 GHz – 71 GHz
  • FR5 114.25 GHz – 300 GHz
  • the NEs 102 and the UEs 104 may perform wireless communications over one or more of the operating frequency bands.
  • FR1 may be used by the NEs 102 and the UEs 104, among other equipment or devices for cellular communications traffic (e.g., control information, data).
  • FR2 may be used by the NEs 102 and the UEs 104, among other equipment or devices for short-range, high data rate capabilities.
  • Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 16 [0062]
  • FR1 may be associated with one or multiple numerologies (e.g., at least three numerologies).
  • FR2 may be associated with one or multiple numerologies (e.g., at least 2 numerologies).
  • one or more of the NEs 102 and the UEs 104 are operable to implement various aspects of the techniques described with reference to the present disclosure.
  • a UE 104 transmits a configuration message to an NE 102 including an indication to perform one or more of SL-PRS or SL positioning data message transmission, and the configuration message includes one or more SL positioning parameters.
  • the NE 102 can transmit to the UE 104 a resource configuration message including a set of time-frequency resources in which to perform the one or more of the SL-PRS or SL positioning data message transmission.
  • the UE 104 can utilize the time-frequency resources to perform SL positioning, such as for the UE 104 itself and/or for a different UE.
  • NR positioning based on NR Uu signals and stand-alone (SA) architecture e.g., beam-based transmissions
  • SA stand-alone
  • the targeted use cases also included commercial and regulatory (emergency services) scenarios as in Release 15.
  • the performance requirements are the following: Positioning Error Indoor Outdoor Horizontal Positioning ⁇ 3m for 80% of UEs ⁇ 10m for 80% of UEs Vertical Positioning ⁇ 3m for 80% of UEs ⁇ 3m for 80% of UEs [0065]
  • 3GPP Release 17 positioning has defined the positioning performance requirements for commercial and IIoT use cases as follows: Positioning Error Commercial IIoT Horizontal Positioning ( ⁇ 1 m) for 90% of UEs ( ⁇ 0.2 m) for 90% of UEs; Vertical Positioning ( ⁇ 3 m) for 90% of UEs ( ⁇ 1 m) for 90% of UEs Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No.
  • the supported UE positioning techniques are listed in the following Table 1: Method UE-based UE-assisted, NG-RAN SUPL LMF-based node assisted A-GNSS Yes Yes No Yes (UE-based and UE-assisted) OTDOA Notes1,2 No Yes No Yes (UE-assisted) E-CID Note 4 No Yes Yes Yes for E-UTRA (UE-assisted) Sensor Yes Yes No No WLAN Yes Yes Yes No Yes Bluetooth No Yes No No No TBS Note 5 Yes Yes No Yes (MBS) DL-TDOA Yes Yes No No DL-AoD Yes Yes No No Multi-RTT No Yes Yes No NR E-CID No Yes FFS No UL-TDOA No No Yes No UL-AoA No No Yes No NOTE 1: This includes TBS positioning based on PRS signals.
  • NOTE 2 In this version of the specification only observed time difference of arrival (OTDOA) based on LTE signals is supported.
  • NOTE 4 This includes Cell-ID for NR method.
  • NOTE 5 In this version of the specification is for TBS positioning based on metropolitan beacon system (MBS) signals.
  • MBS metropolitan beacon system
  • FIG. 2 illustrates an example of system 200 for NR beam-based positioning in accordance with aspects of the present disclosure.
  • the system 200 illustrates a UE 104 and network entities 102 (e.g., gNBs).
  • the PRS can be transmitted by different base stations (serving and neighboring) using narrow beams over FR1 and FR2 as illustrated in the example system Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 19 200, which is relatively different when compared to LTE where the PRS was transmitted across the whole cell.
  • the PRS can be locally associated with a PRS Resource identifier (ID) and Resource Set ID for a base station (e.g., a TRP).
  • ID PRS Resource identifier
  • TRP Resource Set ID
  • UE positioning measurements such as reference signal time difference (RSTD) and PRS reference signal received power (RSRP) measurements are made between beams (e.g., between a different pair of downlink (DL) PRS resources or DL PRS resource sets) as opposed to different cells as was the case in LTE.
  • RSTD reference signal time difference
  • RSRP PRS reference signal received power
  • the RAT-dependent positioning techniques may utilize the 3GPP RAT and core network entities to perform the position estimation of the UE, which are differentiated from RAT-independent positioning techniques, which rely on the Global Navigation Satellite System (GNSS), inertial measurement unit (IMU) sensor, wireless local area network (WLAN), and Bluetooth technologies for performing target device (UE) positioning.
  • GNSS Global Navigation Satellite System
  • IMU inertial measurement unit
  • WLAN wireless local area network
  • Bluetooth Bluetooth technologies for performing target device (UE) positioning.
  • Figure 3 illustrates example scenarios 300 for absolute and relative positioning scenarios.
  • the scenarios 300 for instance, as defined in the system architectural (stage 1) study reported in technical report (TR) 22.832 using three different coordinate systems including Absolute Positioning (e.g., fixed coordinate systems), Relative Positioning (e.g., variable and moving coordinate systems), and Relative Positioning, e.g., variable coordinate systems.
  • Absolute Positioning e.g., fixed coordinate systems
  • Relative Positioning e.g., variable and moving
  • Table 2 UE measurements to enable RAT-dependent positioning techniques.
  • DL/UL Reference UE Measurements To facilitate support of the Signals positioning techniques Rel.16 DL PRS DL RSTD DL-TDOA Rel.16 DL PRS DL PRS RSRP DL-TDOA, DL-AoD, Multi-RTT Rel.16 DL PRS / Rel.16 UE Rx-Tx time difference Multi-RTT SRS for positioning Rel.15 SSB / CSI-RS SS-RSRP(RSRP for RRM), NR E-CID for RRM SS-RSRQ(for RRM), CSI-RSRP (for RRM), CSI-RSRQ (for RRM), SS-RSRPB (for RRM) Attorney Docket No.
  • the downlink time difference of arrival (DL-TDOA) positioning method makes use of the DL RSTD (and optionally DL PRS RSRP) of downlink signals received from multiple TPs, at the UE.
  • the UE measures the DL RSTD (and optionally DL PRS RSRP) of the received signals using assistance data received from the positioning server, and the resulting measurements are used along with other configuration information to locate the UE in relation to the neighboring TPs.
  • the DL AoD positioning method makes use of the measured DL PRS RSRP of downlink signals received from multiple TPs, at the UE.
  • the UE measures the DL PRS RSRP of the received signals using assistance data received from the positioning server, and the resulting measurements are used along with other configuration information to locate the UE in relation to the neighboring TPs.
  • the Multi-RTT positioning method makes use of the UE Rx-Tx measurements and DL PRS RSRP of downlink signals received from multiple TRPs, measured by the UE and the measured gNB Rx-Tx measurements and UL sounding reference signal (SRS)-RSRP at multiple TRPs of uplink signals transmitted from UE.
  • SRS sounding reference signal
  • the multi-RTT positioning technique makes use of the UE Rx-Tx measurements and DL PRS RSRP of downlink signals received from multiple TRPs, as measured by the UE and the measured gNB Rx-Tx measurements and uplink SRS RSRP (UL SRS-RSRP) at multiple TRPs of uplink Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 21 signals transmitted from UE.
  • the UE measures the UE Rx-Tx measurements (and optionally DL PRS RSRP of the received signals) using assistance data received from the positioning server (also referred to herein as the location server), and the TRPs the gNB Rx-Tx measurements (and optionally UL SRS-RSRP of the received signals) using assistance data received from the positioning server.
  • the measurements are used to determine the RTT at the positioning server, which are used to estimate the location of the UE.
  • the multi-RTT is only supported for UE-assisted and NG-RAN assisted positioning techniques as noted in Table 1.
  • Figure 5 illustrates an example of a system 500 for relative range estimation using a gNB RTT positioning framework as related to carrier phase positioning configuration.
  • the position of a UE is estimated with the knowledge of its serving ng-eNB, gNB, and cell, and is based on LTE signals.
  • the information about the serving ng-eNB, gNB, and cell may be obtained by paging, registration, or other methods.
  • the NR E-CID positioning refers to techniques which use additional UE measurements and/or NR radio resources and other measurements to improve the UE location estimate using NR signals.
  • E-CID positioning may utilize some of the same measurements as the measurement control system in the RRC protocol, the UE may not make additional measurements for the sole purpose of positioning (e.g., the positioning procedures do not supply a measurement configuration or measurement control message, and the UE reports the measurements that it has available rather than being required to take additional measurement actions).
  • the uplink time difference of arrival (UL-TDOA) positioning technique makes use of the UL-relative time-of-arrival (RTOA) (and optionally UL SRS-RSRP) at multiple reception points (RPs) of uplink signals transmitted from UE.
  • RTOA UL-relative time-of-arrival
  • RPs reception points
  • the RPs measure the UL-RTOA (and optionally UL SRS-RSRP) of the received signals using assistance data received from the positioning server, and the resulting measurements are used along with other configuration information to estimate the location of the UE.
  • the uplink angle of arrival (UL-AoA) positioning technique makes use of the measured azimuth and the zenith of arrival at multiple RPs of uplink signals transmitted from UE.
  • the RPs measure azimuth-AoA (A-AoA) and zenith-AoA (Z-AoA) of the received signals using assistance data received from the positioning server (also referred to herein as the location server), and the resulting measurements are used along with other configuration information to estimate the location of the UE.
  • A-AoA azimuth-AoA
  • Z-AoA zenith-AoA
  • Various RAT-independent positioning techniques may also be used, such as network- assisted GNSS techniques, barometric pressure sensor positioning, WLAN positioning, Bluetooth positioning, terrestrial beacon system (TBS) positioning, and motion sensor positioning.
  • Network-assisted GNSS techniques make use of UEs that are equipped with radio receivers capable of receiving GNSS signals.
  • GNSS encompasses both global and regional/augmentation navigation satellite systems. Examples of global navigation satellite systems include Global Positioning System (GPS), Modernized GPS, Galileo, Global Navigation Satellite System (GLONASS), and BeiDou Navigation Satellite System (BDS).
  • GPS Global Positioning System
  • GLONASS Modernized GPS
  • GLONASS Global Navigation Satellite System
  • BDS BeiDou Navigation Satellite System
  • Regional navigation satellite systems include Quasi Zenith Satellite System (QZSS) while the many augmentation systems are classified under the generic term of Space Based Augmentation Systems (SBAS) and provide regional augmentation services.
  • Network- assisted GNSS techniques may use different GNSSs (e.g., GPS, Galileo, etc.) separately or in combination to determine the location of a UE.
  • Barometric pressure sensor positioning techniques make use of barometric sensors to determine the vertical component of the position of the UE. The UE measures barometric pressure, optionally aided by assistance data, to calculate the vertical component of its location or to send measurements to the positioning server for position calculation. This technique should be combined with other positioning methods to determine the 3D position of the UE.
  • WLAN positioning techniques makes use of the WLAN measurements (access point (AP) identifiers and optionally other measurements) and databases to determine the location of the UE.
  • the UE measures received signals from WLAN access points, optionally aided by assistance data, to send measurements to the positioning server for position calculation.
  • the location of the UE is calculated.
  • the UE makes use of WLAN measurements and optionally WLAN AP assistance data provided by the positioning server to determine its location.
  • Bluetooth positioning techniques makes use of Bluetooth measurements (beacon identifiers and optionally other measurements) to determine the location of the UE.
  • the UE measures received signals from Bluetooth beacons.
  • the location of the UE is calculated.
  • TBS positioning techniques make use of a TBS, which includes a network of ground- based transmitters, broadcasting signals only for positioning purposes. Examples of types of TBS positioning signals are MBS (Metropolitan Beacon System) signals and PRSs.
  • MBS Micropolitan Beacon System
  • PRSs PRSs.
  • Motion sensor positioning techniques makes use of different sensors such as accelerometers, gyros, magnetometers, and so forth to calculate the displacement of UE.
  • the UE estimates a relative displacement based upon a reference position and/or reference time.
  • the UE sends a report comprising the determined relative displacement which can be used to determine the absolute position. This method can be used with other positioning methods for hybrid positioning.
  • Different downlink measurements used for RAT-dependent positioning techniques include including DL PRS-RSRP, DL RSTD and UE Rx-Tx Time Difference.
  • DL PRS-RSRP DL PRS reference signal received power
  • DL PRS-RSRP is the linear average over the power contributions (in [W]) of the resource elements that carry DL PRS reference signals configured for RSRP measurements within the considered measurement frequency bandwidth.
  • the reference point for the DL PRS-RSRP shall be the antenna connector of the UE.
  • DL PRS-RSRP shall be measured based on the combined signal from antenna elements corresponding to a given receiver branch. For frequency range 1 and 2, if receiver diversity is in use by the UE, the reported DL PRS-RSRP value shall not be lower than the corresponding DL PRS-RSRP of any of the individual receiver branches.
  • DL RSTD RRC_CONNECTED intra-frequency
  • DL RSTD inter-frequency DL reference signal time difference
  • Definition DL reference signal time difference (DL RSTD) is the DL relative timing difference between the positioning node j and the reference positioning node i, defined as T SubframeRxj – T SubframeRxi , Where: Attorney Docket No.
  • TSubframeRxj is the time when the UE receives the start of one subframe from positioning node j.
  • T SubframeRxi is the time when the UE receives the corresponding start of one subframe from positioning node i that is closest in time to the subframe received from positioning node j.
  • Multiple DL PRS resources can be used to determine the start of one subframe from a positioning node.
  • the reference point for the DL RSTD shall be the antenna connector of the UE.
  • the reference point for the DL RSTD shall be the antenna of the UE.
  • the UE Rx – Tx time difference is defined as TUE-RX – TUE-TX
  • TUE-RX is the UE received timing of downlink subframe #i from a positioning node, defined by the first detected path in time.
  • T UE-TX is the UE transmit timing of uplink subframe #j that is closest in time to the subframe #i received from the positioning node.
  • Multiple DL PRS resources can be used to determine the start of one subframe of the first arrival path of the positioning node.
  • the reference point for T UE-RX measurement shall be the Rx antenna connector of the UE and the reference point for T UE-TX measurement shall be the Tx antenna connector of the UE.
  • the reference point for TUE-RX measurement shall be the Rx antenna of the UE and the reference point for TUE-TX measurement shall be the Tx antenna of the UE.
  • DL PRS-RSRPP Reference Signal Received Path Power
  • DL PRS-RSRPP Reference Signal Received Path Power
  • the reference point for the DL PRS-RSRPP shall be the antenna connector of the UE.
  • DL PRS-RSRPP shall be measured based on the combined signal from antenna elements corresponding to a given receiver branch.
  • Figure 6 illustrates an example procedure 600 to enable a UE to obtain sidelink positioning and/or ranging location results.
  • the procedure 600 can use one or more other UEs with the assistance of an LMF in a serving Public Land Mobile Network (PLMN) for UE1.
  • PLMN Public Land Mobile Network
  • the ranging/SL positioning location results may include absolute locations, relative locations or distances and directions, such as based on the service request.
  • the target UE decides to initiate a SL Mobile Originated Location Request (MO-LR) procedure, it can include one or multiple SL reference UE(s) and/or located UE (s) in the service request.
  • a UE1 can be in coverage and registered with a serving PLMN.
  • UEs 2 to n may or may not be in coverage and, if in coverage, may or may not be registered with the same serving PLMN as UE1. 1.
  • the procedures and signaling specified in clause 6.2 of TS 23.586 may be used to provision the Ranging/SL positioning service authorization and policy/parameter provisioning to UEs 1 to n, when in coverage.
  • UEs 1 to n Secure groupcast and/or unicast links are established between UEs 1 to n as defined in clause 5.3 of TS 23.586 to enable UE1 to exchange Ranging and Sidelink Positioning Protocol (RSPP) messages over PC5-U reference point with each of UEs 2 to n and possibly enabling UEs 2 to n to exchange RSPP over PC5-U between each other.
  • RSPP Ranging and Sidelink Positioning Protocol
  • UE1 and UEs 2 to n may communicate over PC5 for authorization of Ranging/SL positioning and receiving QoS parameters if needed.
  • Each of UEs verifies that Ranging/SL positioning is permitted, including whether Ranging/SL positioning results may be transferred to an LCS Client or AF if this is used, according to any service authorization and policy/parameter Attorney Docket No.
  • QoS requirements for the Ranging/SL positioning may be also provided based on QoS requirements in the service request.
  • UE1 may obtain the Sidelink positioning capabilities of UEs 2 to n using the groupcast and/or unicast links established in step 3. Step 4 and 5 may be performed to transfer the information of UEs which are not served by the LMF. 6. Based on the Sidelink positioning capabilities of UE1/.../UEn, the target UE determines SL-MO-LR is to be performed. If UE1 is the Located UE (i.e.
  • the target UE when the target UE is one of UE2/.../UEn and does not have NAS connection), the target UE initiates SL-MO-LR service request to UE1. 7. If UE1 is in connection management (CM)-IDLE state, UE1 instigates a UE triggered Service Request in order to establish a signaling connection with the serving AMF of UE1. 8. UE1 sends a supplementary services SL-MO-LR request to the serving AMF in an UL NAS TRANSPORT message.
  • CM connection management
  • the SL-MO-LR request indicates the other UEs 2 to n (using application layer ID and/or Generic Public Subscription Identifier (GPSI)), indicates any assistance data needed, indicates whether location calculation assistance is needed, and indicates whether location results should be transferred to an LCS client or AF.
  • the message shall include the identity of the LCS client or the AF and may include the address of the Gateway Mobile Location Centre (GMLC) through which the LCS client or AF (via Network Exposure Function (NEF)) should be accessed.
  • GMLC Gateway Mobile Location Centre
  • NEF Network Exposure Function
  • a Service Type indicates which MO-LR service of the LCS Client is requested by the UE may be included.
  • the preferred type of Sidelink positioning/ranging location results e.g.
  • the supplementary services SL-MO-LR request includes an indication that one of UE2/.../UEn is the target UE instead of UE1.
  • the serving AMF selects an LMF serving UE1 (e.g. an LMF that supports Sidelink positioning/ranging) and sends an Nlmf_Location_DetermineLocation service operation towards the LMF with the information from the SL-MO-LR Request.
  • the service operation includes a LCS Correlation identifier.
  • the LMF sends a request to UE1 for the capabilities of UEs 1 to n.
  • UE 1 returns its capabilities to the LMF.
  • UE1 may additionally return the capabilities of the UEs obtained at step 5 if requested by the LMF at step 10.
  • UE1 may send a request for specific assistance data to the LMF.
  • LMF sends the requested assistance data to UE1, and UE1 forwards the assistance data received from LMF to UE2/.../UEn.
  • the assistance data may assist UEs 1 to n to obtain sidelink location measurements at step 15 and/or may assist UE1 to calculate Sidelink positioning/ranging location results at step 16.
  • Step 12 can be omitted if UE1 includes a message containing the request for specific assistance data in the SL-MO-LR request at step 8. 14.
  • the LMF sends a request for location information to UE1 and may also send a request for location information to UE2/.../UEn if it is served by the LMF. If LMF determines to apply UE based SL Positioning, LMF includes in the request the indication of UE based SL Positioning. LMF may also provide the list of candidate Located UE(s), if absolute location is requested at step 8. If scheduled location time is received at step 14. LMF may include a scheduled location time. 15.
  • UE1 instigates a Sidelink positioning/ranging procedure among UEs 1 to n in which UEs 1 to n obtain Sidelink location measurements and UEs 2 to n transfer their Sidelink location measurements to UE 1 and/or to the LMF (depending on the assistance requested). If scheduled location time is received at step 14, Sidelink positioning/ranging is performed at the scheduled location time. 16. If Target UE's absolute location information is required at step 8 and if absolute location of Located UE(s) is not available, the Target UE sends a request to the Located UE(s) to trigger 5GC-MO-LR procedure to let the Located UE(s) acquire their own absolute location.
  • the QoS requirement received at step 8 is included in the request, which is used to derive the QoS for Located UE(s) positioning. 17. If LMF determines to use UE based calculation, at least one of UE1/.../UEn calculates Sidelink positioning/ranging location results based on the Sidelink location measurements obtained at step 15 and possibly using assistance data received at step 13.
  • the Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 28 Sidelink positioning/ranging location results can include absolute locations, relative locations or ranges and directions related to the UEs 1 to n. 18.
  • UE1 If UE1 received a request for location information at step 14, UE1 sends a response to the LMF and includes the Sidelink location measurements obtained at step 15, the Sidelink positioning/ranging location results obtained at step 17 if step 17 was performed or Located UE's absolute location obtained at step 16. 19. If Target UE's absolute location information is required at step 8 and if absolute location of Located UE(s) is not received at step 18, LMF can either retrieved the location of the Located UE(s) locally or triggers 5GC- Mobile Terminated Location Request (MT-LR) procedure to the GMLC to acquire the absolute location of the Located UE(s) using Application Layer ID or GPSI of the Located UE(s).
  • MT-LR 5GC- Mobile Terminated Location Request
  • LMF includes the QoS requirement received at step 8 in the request, which is used to derive the QoS for Located UE(s) positioning. If scheduled location time is used, LMF includes the scheduled location time in the request to GMLC. 20.
  • the LMF calculates Sidelink positioning/ranging location results for UEs 1 to n from the Sidelink location measurements received at step 18 and absolute location of Located UE(s) at step 19.
  • the Sidelink positioning/ranging location results can include absolute locations, relative locations or ranges and directions related to the UEs 1 to n, depending on the location request received in step 8. 21.
  • the LMF returns an Nlmf_Location_DetermineLocation service operation response to the AMF and includes the Sidelink positioning/ranging location results received at step 18 or calculated at step 20. 22. If Sidelink positioning/ranging location results were received at step 21, the AMF performs steps 7-12 of clause 6.2 to send the Sidelink positioning/ranging location results to the GMLC and to an AF or LCS Client if this was requested at step 8.
  • the Sidelink positioning/ranging location results include the identities for the respective UEs 1 to n received at step 8.
  • NOTE 5 Sending location results and global identities for UEs 1 to n to an AF or LCS Client may require privacy verification from UEs 1 to n and/or from the HPLMNs of UEs 1 to n.
  • the LMF returns a supplementary services SL-MO-LR response to UE1 in a DL NAS TRANSPORT message and includes any Sidelink positioning/ranging location results calculated at step 20 if step 20 was performed. If UE1 is Located UE, and the target UE is one of Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 29 the UEs 2 to n and does not have NAS connection, then UE1 may transfer the Sidelink positioning/ranging location results to the target UE. [0090]
  • Figure 7 illustrates a procedure 700 to enable an LCS Client or AF to obtain ranging and/or sidelink positioning location results for a group of n UEs.
  • the GMLC determines a UE among the n UEs to be designated UE1 (e.g., Target UE in TS 23.586) and one or more other UEs designated UE2, UE3, ..., UEn (n ⁇ 2) (e.g., Reference/Located UEs in TS 23.586).
  • the Ranging/Sidelink Positioning location results may include absolute locations, relative locations or ranges and directions related to the UEs, based on the service request.
  • a SL-MT-LR procedure can be used to estimate the relative locations or distances and/or directions between the UEs.
  • an example procedure for periodic and triggered SL-MT-LR is defined in clause 6.20.4.
  • the LCS Client or the AF (via NEF) sends an LCS service request to the (H)GMLC for Ranging/Sidelink Positioning location results for the n UEs which may each be identified by a GPSI or a subscription permanent identifier (SUPI).
  • the request may include the required QoS, the required location results (e.g. absolute locations, relative locations or distances and/or directions related to the UEs), the SL reference UE(s) in case of relative locations, distance, or direction.
  • the (H)GMLC or NEF authorizes the LCS Client or the AF for the usage of the LCS service. If the authorization fails, the remaining steps are skipped and the (H)GMLC or NEF responds to the LCS Client or the AF with the failure of the service authorization.
  • an Application Layer ID shall be included for each of the n UEs to enable discovery of the UEs at step 12. 2.
  • the (H)GMLC invokes a Nudm_SDM_Get service operation towards the Unified Data Management (UDM) of each of the n UEs to get the privacy settings of the UE identified by its GPSI or SUPI. The UDM returns the UE Privacy setting of the UE.
  • the (H)GMLC checks the UE LCS privacy profile. 3.
  • the (H)GMLC invokes a Nudm_UECM_Get service operation towards the UDM of each of the n UEs (for which GPSI or SUPI is available), one at a time, using the GPSI or SUPI of each UE.
  • the (H)GMLC selects the UE (e.g. which is treated as UE1 in following steps) that initiates the Ranging/SL Positioning and selects the corresponding serving AMF.
  • Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 30
  • the UDM is aware of the serving AMF address at UE registration on an AMF as defined in clause 4.2.2.2.2 of TS 23.502.
  • the UDM is aware of a serving (V)GMLC address at UE registration on an AMF as defined in clause 4.2.2.2.2 of TS 23.502. 4. For a non-roaming case, this step is skipped.
  • the (H)GMLC may receive an address of a (V)GMLC (together with the network address of the current serving AMF) from the UDM in step 3, otherwise, the (H)GMLC may use the Network Repository Function (NRF) service in the (H)PLMN to select an available (V)GMLC in the (V)PLMN, based on the (V)PLMN identification contained in the AMF address received in step 3.
  • NRF Network Repository Function
  • the (H)GMLC then sends the location request to the (V)GMLC by invoking the Ngmlc_Location_ProvideLocation service operation towards the (V)GMLC.
  • the (H)GMLC did not receive the address of the (V)GMLC, or when the (V)GMLC address is the same as the (H)GMLC address, or when both PLMN operators agree, the (H)GMLC sends the location service request message to the serving AMF. In this case, step 4 is skipped.
  • the (H)-GMLC also provides the LCS client type of AF, if received in step 1, or LCS client type of LCS client and other attributes to be sent to AMF in step 5. 5.
  • the (V)GMLC In the case of roaming, the (V)GMLC first authorizes that the location request is allowed from this (H)GMLC, PLMN or from this country. If not, an error response is returned.
  • the (H)GMLC or (V)GMLC invokes the Namf_Location_ProvidePositioningInfo service operation towards the AMF serving UE1 to request Sidelink positioning/ranging location results of the n UEs.
  • the service operation includes the SUPI of UE1, Application layer IDs of the UEs, the client type and may include the required LCS QoS, the required location results (e.g. relative locations or ranges and directions related to the UEs) and other attributes as received or determined in step 1. 6.
  • the AMF initiates a network triggered Service Request procedure to establish a signaling connection with UE1. If signaling connection establishment fails, steps 7-17 can be skipped. 7-8. If the indicator of privacy check indicates an action is needed, then same operation as that of step 7-8 of clause 6.1.2 is carried out. 9.
  • the serving AMF selects an LMF serving UE1 (e.g. an LMF that supports Ranging/Sidelink Positioning) and sends an Nlmf_Location_DetermineLocation service operation towards the LMF with the information received at step 5 e.g. required location results (e.g.
  • the service operation includes a LCS Correlation identifier. 10.
  • the LMF sends an SL-MT-LR request to the serving AMF as a supplementary services message, using the Namf_Communication_N1N2MessageTransfer service operation, and the session ID parameter is set to the LCS Correlation identifier.
  • the SL-MT-LR request may include the application layer IDs of the other UEs 2 to n, the types of required location results (e.g. relative locations or distances and/or directions) and SL reference UE(s) in case of relative locations.
  • the serving AMF forwards the SL-MT-LR request and a Routing identifier equal to the LCS Correlation identifier to UE1 using a DL NAS TRANSPORT message.
  • UE1 attempts to discover the other UE 2 to n using their Application Layer IDs if not already discovered using procedure defined in clause 6.4 of TS 23.586.
  • UE1 obtains the sidelink positioning capabilities of the discovered UEs via the SLPP if not already obtained. 14.
  • the UE1 returns a supplementary services SL-MT-LR response to the serving AMF in an UL NAS TRANSPORT message and includes the Routing identifier received in step 11.
  • the SL-MT-LR response indicates which of UEs 2 to n have been discovered and the sidelink positioning capabilities of the discovered UEs. 15.
  • the serving AMF forwards the SL-MT-LR response to the LMF indicated by the Routing identifier received at step 14 and includes a LCS Correlation identifier equal to the Routing identifier. 16.
  • Ranging/Sidelink Positioning of UE1 and the other discovered UEs occurs as for an SL-MO-LR with the difference that Ranging/Sidelink Positioning location measurement data or results can be returned to the LMF and the LMF indicates to UE1 at step 13 or step 14 of Error! Reference source not found. whether the Ranging/Sidelink Positioning location results will be calculated by the LMF (at step 19) or by UE1 (at step 17). For some undiscovered UEs among the other UEs 2 to n, the LMF interacts with GMLC to initiate the 5GC-MT-LR procedure for UE2 to n to get their absolute locations and calculates the relative locations or distances and/or directions related to the UEs. 17-20.
  • FIG. 8 illustrates an example procedure 800 for ranging and/or SL positioning control such as for UE-only operation. Either UE-only operation or network-based operation can be applied in the ranging/sidelink positioning control procedures.
  • UE-only operation can be applied for the following cases: x Neither Target UE nor SL Reference UE is served by NG-RAN.
  • x Network-based Operation is not supported by the 5GC network.
  • x When Network-based Operation is not supported by the 5GC network, indication on whether the UE is allowed to use UE-only operation to perform Ranging/ SL Positioning is included in the Policy/Parameter provisioned to UE and is provisioned to the UE. The T arget UE will take it into account to initiate UE-only operation procedure.
  • x SL-MO-LR request is rejected by the network.
  • UE1 i.e. Target UE
  • SL Positioning Client UE over PC5 during procedures for Ranging/SL Positioning service exposure though PC5.
  • the service request includes the SL Positioning Client UE's user info and Target UE's user info and required positioning QoS.
  • the service request includes the SL Positioning Client UE's user info, Target UE's user info, SL Reference UE's user info(UE2/.../UEn) and Ranging/SL Positioning QoS information.
  • 1b RSPP application layer.
  • the service request includes type of the result (i.e. absolute location, relative location or ranging information) and the required QoS.
  • UE1 discovers UE2/.../UEn (e.g., SL Reference UEs/Located UEs). 3.
  • Step 4 may be performed during step 5 and step 6 with coordination of SL Positioning Server UE. 5. If UE1 does not support SL Positioning Server functionalities, a SL Positioning Server UE (either co-located with a SL Reference UE/Located UE or operated by a separate UE) is discovered (if not yet discovered in step 2) and selected.
  • a SL Positioning Server UE that is co-located with a SL Reference UE/Located UE or operated by a separate UE, UE1 discovers Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 33 and selects the SL Positioning Server UE and requests SL Positioning Server UE to participate in the Ranging/Sidelink positioning. 6. Sidelink Positioning assistant data is transferred among UE1/ .../UEn and the SL Positioning Server UE. 7. SL-PRS measurement is performed between UE1 and UE2/.../UEn and optionally also amongst UE2/.../UEn. 8.
  • SL-PRS measurement data is transferred to the SL Positioning Server UE or is transferred to UE1 if it supports SL Positioning Server functionalities to perform result calculation. Based on the type of the result received in step 1, absolute location, relative location or ranging information is calculated at the UE. 9. Ranging/SL Positioning result is transferred to: 9a. SL Positioning Client UE over PC5 during procedures for Ranging/SL Positioning service exposure though PC5 as defined in clause 6.6.1.1; 9b. RSPP application layer. [0094] Accordingly, aspects of this disclosure provide for different positioning scenarios including scenarios that do not involve a location server and implementations that involve a location server.
  • an NG-RAN can schedule resources for SL-PRS transmission and SL positioning data transmission.
  • Such implementations can involve cross layer interaction between UE SLPP and RRC layers for sharing and exchange of positioning-related information to a serving gNB.
  • the UE may be triggered by its own higher-layers (e.g., ranging, SL positioning layer, etc.) and/or receive an indication from higher-layers of another UE to initiate a process of SL positioning transmission based on the serving gNB scheduling of resources.
  • this can be a direct interaction between UE and NG-RAN node (e.g., serving gNB) and not involve a location server (e.g., LMF) for the provision of SL positioning assistance data.
  • a UE may transmit information related to the UE positioning QoS or positioning QoS mapped to the standardized PC55G QoS Identifier (PQI) table as part of the SL positioning assistance data request to the serving gNB where the UE is requesting resources for SL-PRS transmission.
  • PQI PC55G QoS Identifier
  • the positioning QoS can be based on a sidelink SL MO-LR location service request requested by the LCS client (e.g., application) and can be based on a single UE request or multiple UE requests), such as in terms of the following metrics: x Absolute Location Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No.
  • a UE (e.g., group of UE) positioning QoS is mapped to a standardized PQI table, also referred to as the transport QoS of SL positioning-related messages given by the highlighted portion in Table 5 below.
  • the PQI value can be given by ‘X’, which can be an integer value.
  • the resource type is non-guaranteed bit rate (GBR) as shown in Table 5 to accommodate different cast type SL-PRS and SLPP message transmissions including capability exchange, assistance data exchange, location information exchange, error and bort message exchanges.
  • the resource type may be configured to GBR or delay critical service as SL positioning may be considered as critical sidelink services.
  • x The Default Priority Level can be ‘Y’, which can be an integer value to reflect the default priority of SL positioning-related messages.
  • the Default priority may assist in determining the Layer-1 priority of SL positioning related messages and/or SL-PRS.
  • the Packet Delay Budget (PDB) can be given by ‘Z’ ms which can be an integer value.
  • the delay budget may be split up to reflect SLPP positioning related messages given by ‘Z1’ PDB and SL-PRS transmissions given by ‘Z2’ positioning/location delay budget (PoDB/LDB). o The PDB/PoDB/LDB may be used by lower layers to convey the SL-PRS/SLPP positioning resource selection window for Mode 2 procedures.
  • the resource selection window is defined by [ ⁇ ⁇ ⁇ , ⁇ ⁇ ⁇ ], where ⁇ is the slot at which the resources should be selected, ⁇ is as the processing time to identify SL-PRS/SLPP message resource candidates and select these resources for transmission, while ⁇ is defined as ⁇ ⁇ ⁇ ⁇ ⁇ .
  • This PDB/PoDB/LDB may be signalled as part of the QoS profile from the UE’s own higher-layers, or in other implementations received from another UE/device, via 1 st stage or 2 nd stage SCI.
  • the packet error rate can be given by ‘A’ to indicate the reliability of SL positioning- related messages given by block error rate (BLER), bit error rate (BER), packet error rate (PER), or any related metric.
  • BLER block error rate
  • BER bit error rate
  • PER packet error rate
  • the default maximum data burst volume is not specified for SL positioning but in other implementations a data burst volume may be given in bytes applicable to SL positioning- related messages.
  • the default averaging window can be given by ‘B’ ms, which can be an integer value.
  • x NOTE that multiple sets of ⁇ X,Y, Z, A, B ⁇ may be defined as part of the standardized PQI.
  • Mode 2 and/or Scheme 2 can support both autonomous dynamic and semi-persistent scheduling.
  • a UE can sense and select resources based on SL-PRS transmission configuration and/or SL positioning data message (e.g., transport block (TB)), while a semi-persistent scheme can select a number of consecutive resources based on a number of consecutive reselection counters applicable for SL- PRS and SL positioning data transmissions.
  • a time period is defined between the selected resources for the transmission of consecutive SL-PRS and/or SL positioning data messages (e.g., TBs) given by the RRI (Resource Reservation Interval) with range ⁇ [1:99], 100, 200, ..., 1000 ⁇ ms.
  • a UE may select resources when it generates a new SL positioning TB based on a higher-layer trigger and/or when it receives a higher-layer trigger to transmit SL-PRS according to a defined SL-PRS configuration.
  • a UE can perform sensing according to a sensing window bounded by ⁇ ⁇ ⁇ , ⁇ ⁇ ⁇ , ⁇ ⁇ , where ⁇ is defined as above, ⁇ is defined in terms of number of slots Spacing (SCS)) and ⁇ , ⁇ is the time for completing the sensing operation.
  • a resource selection window can be initially defined by the UE as a function of ⁇ , ⁇ and the PDB/PoDB/LDB described above.
  • ⁇ can be defined as a function of ⁇ , which can be based on a priority value of the SL positioning TB or SL-PRS. This priority may be based on the positioning QoS, transport QoS, or combination thereof. [0100] Thereafter, when the selection window has been defined, the UE can identify candidate resources within the selection window. A resource exclusion algorithm can then be applied to excluded candidate resource based on defined policies and thereafter the UE may select resources from the remaining candidate resources. In implementations resources can be selected subject to a percentage of remaining available resources of the selection window being higher than a configured threshold P% for SL-PRS transmission or SL Positioning data message transmission.
  • the configured threshold of P% can be based on a priority value of the SL positioning TB or SL-PRS, where a mapping to P% to a specific priority can be determined and provided to a sensing UE.
  • the above-described positioning QoS and positioning-mapped PQI may be signaled to another entity (e.g., gNB and/or location server) as part of a QoS profile applicable to a particular LCS request. This QoS profile may also be signaled along with a SL QoS Flow ID.
  • a location server Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No.
  • the UE may share one or more of the above QoS profiles with a serving gNB to assist in the gNB resource allocation procedure.
  • Table 5 Illustrative example of Standardized PQI with SL Positioning PQI PQI Resource Default Packet Packet Default Default Example Type Priority Delay Error Maximum Services Value Averaging Level Budget Data Burst Rate Window Volume 21 3 20 ms 10 -4 N/A 2000 ms Platooning GBR between UEs – Higher degree of automation; Platooning between UE and roadside unit (RSU) – Higher degree of automation 22 (NOTE 1) 4 50 ms 10 -2 N/A 2000 ms Sensor sharing – higher degree of automation 23 3 100 ms 10 -4 N/A 2000 ms Information sharing for automated driving – between UEs or UE and RSU - higher Attorney Docket No.
  • a UE may partition a request for SL-PRS resources per positioning method.
  • SL-TDOA UL-like
  • SL-TDOA DL-like
  • SL-RTT single-sided or double-sided
  • SL UE Rx-Tx time difference measurements SL-AoA for Azimuth-AoA and/or Zenith-AoA measurements, etc.
  • This can enable a UE to request resources according to a specified positioning method.
  • the decision may be up to the target UE/device and/or anchor UE/device and the UE/devices may Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No.
  • SMM920230065-WO-PCT 40 act as a server UE and/or are equipped with server UE capabilities.
  • a server UE may be another UE requesting for SL-PRS resources for transmission.
  • a requesting UE/device may request SL-PRS transmission characteristics for a given SL positioning resource pool including but not limited to the following: x SL PRS Resource Index o SL-PRS Resource Index ID o SL-PRS bandwidth in terms of PRBs, subchannels, subchannel size o SL-PRS Comb size in terms of: ⁇ SL-PRS comb offsets and associated SL-PRS comb sizes (N) ⁇ SL-PRS starting symbols and number of SL-PRS symbols (M) ⁇ Start time of SL-PRS may be with respect to SFN0 or DFN0 and total SL- PRS duration given X ms.
  • the configured grant periodicity may be the union of p S ⁇ o L s- - P 1 RS and p S ⁇ o L s-- 2 PRS in order to cover multiple periodicity values.
  • o SL-PRS a time-frequency resource within a slot of a dedicated SL PRS resource pool that is used for SL PRS transmission and in the case of a shared resource pool with SL data transmissions uniquely identifies a time-frequency resource based on a SL PRS resource ID and a SL PRS frequency domain allocation.
  • o SL-PRS ID which uniquely identifies a SL-PRS based on SL-PRS Resource ID and/or SL-PRS Resource Set ID, which may be applicable to SL-PRS transmitted across different slots.
  • the example SL-PRS transmission characteristics indicated above may be part of a resource index list comprising of multiple SL-PRS transmission characteristics.
  • the SL-PRS transmission characteristics may include QCL information such as a QCL source, e.g., SLSS, or another SL-PRS.
  • a UE initiating a SL positioning session or transmitting SL-PRS to one or more peer UE can initiate a SL positioning request to a serving gNB.
  • the SL positioning request may contain parameters related to SL Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No.
  • SMM920230065-WO-PCT 42 positioning assistance data delivery including the SL-PRS configuration, which may include a dynamic grant, Type 1 configured grant where RRC/SLPP directly provides the configured sidelink grant for NR sidelink positioning and/or communication, and/or Type 2 configured grant where RRC/SLPP defines a periodicity of the configured sidelink grant while lower layer signaling (e.g., DCI) can signal and activate the configured sidelink grant or deactivate it, e.g., release the SL positioning resources.
  • SLPP may trigger the lower layers such as RRC to perform NR sidelink positioning and resource request with the serving gNB, e.g., NG-RAN node.
  • Figure 9 illustrates an example procedure 900 for a device to initiate a request for SLPP message data exchange and/or SL-PRS transmission with the serving gNB in accordance with aspects of the present disclosure.
  • a UE capable of SL positioning may initiate procedures to indicate its interest in transmitting or receiving SL positioning information/operation in several scenarios. Examples of such scenarios include upon successful connection establishment and/or connection resumption, upon change of transmitting or receiving SL positioning information, upon changing QoS profile(s), upon receiving UE capability information sidelink message/SLPP provide SL positioning capability information from an associated peer SL positioning UE, etc.
  • a UE capable of SL positioning may initiate a procedure to request assignment of dedicated sidelink DRB configuration(s) and transmission of time-frequency resources for SL positioning reference signal and SL positioning data transmission, e.g., SLPP.
  • a UE 104 may receive from a NE 102 (e.g., NG- RAN node such as a serving gNB) a system information broadcast message including SIB12 and/or a new SL positioning SIB containing the initial SL positioning common configuration information applicable to one or more UEs/devices.
  • a NE 102 e.g., NG- RAN node such as a serving gNB
  • SIB12 system information broadcast message
  • a new SL positioning SIB containing the initial SL positioning common configuration information applicable to one or more UEs/devices.
  • the UE 104 may not receive SIB 12 or the new SL Positioning SIB but may still proceed to Step 904 with the transmission of SL UE information comprising information related to the initiation of SL positioning procedures.
  • SIB 12 is used an example in the below Table 6, however, a new or equivalent SIB may be defined carrying the same information for SL positioning.
  • the system information broadcast message content may include the following information elements as listed in Table 6: Table 6: SIB 12 or new SIB for Common SL Positioning Information Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No.
  • SL Positioning Radio Indicates one or multiple sidelink radio bearer Bearer Configuration List configurations for SL Positioning.
  • the SL radio bearer configurations may be applicable to sidelink data radio (DRBs) bearers or other implementations, sidelink signalling radio bearers (SRBs).
  • DRBs sidelink data radio
  • SRBs sidelink signalling radio bearers
  • >SL PDCP Configuration Indicates the PDCP parameters for the sidelink DRB meant for carrying SL Positioning information.
  • SL SDAP Configuration Indicates how to map sidelink QoS flows to sidelink DRB meant for carrying SL Positioning information.
  • SL Radio Bearer Index Indicates the SL DRB configuration
  • SL Offset DFN Indicates the timing offset for the UE to determine DFN timing when GNSS is used for timing reference. Value 1 corresponds to 0.001 milliseconds, value 2 corresponds to 0.002 milliseconds, and so on SL PRS or Positioning Indicates the priority of SL Positioning transmission message Priority and/or reception SL Positioning Frequency Indicates the SL Positioning configuration for a list of Info List carrier frequencies for transmission and reception of SL- PRS and SL positioning (SLPP) messages.
  • SL-PRS/SL positioning validity configuration validity information information including time-based validity criteria (e.g., timer, validity time, and so forth) and/or area-based validity criteria, e.g., zone information(e.g., zone IDs), physical cell identity (PCI), SIB area validity, Cell IDs.
  • time-based validity criteria e.g., timer, validity time, and so forth
  • area-based validity criteria e.g., zone information(e.g., zone IDs), physical cell identity (PCI), SIB area validity, Cell IDs.
  • SL Positioning Indicates common measurement configurations e.g. SL- Measurement Common PRS RSRP
  • SL-PRS Information Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No.
  • This RRC message (e.g., sidelink UE information or similar message) can share SL positioning related information from the UE 104 with the NE 102 (such as with the serving gNB) indicating that the UE 104: o is or is not currently configured to receive and/or transmit SL positioning messages and/or SL-PRS; o is requesting assignment or release of transmission resource for SL positioning messages and/or SL-PRS; o is reporting SL Positioning QoS parameters and/or associated SL transport QoS profile(s) related to SL positioning; and/or o is reporting the sidelink positioning UE capability information of the associated peer UE for communication of all cast types.
  • the message content at step 904 may include the following information elements as listed in Table 7.
  • sidelink UE Information RRC message is used an example in the below Table. However, a new RRC message may be defined and/or another existing RRC message may be used to carry the same information containing SL Positioning-related information: Table 7: Sidelink UE Information including SL Positioning-related Information Parameter Description SL Positioning Rx Indicates the index of frequency on which the UE is Interested Frequency List interested to receive SL Positioning (SLPP) messages or SL-PRS.
  • SL Positioning Rx Indicates the index of frequency on which the UE is Interested Frequency List interested to receive SL Positioning (SLPP) messages or SL-PRS.
  • the value 1 corresponds to the frequency of first entry in SL Frequency Info List broadcast in SIB12
  • the value 2 corresponds to the frequency of second entry in SL Frequency Info List broadcast in SIB12 and so on. If SIB12 is not provided then the UE relies on the same SL Positioning Rx Interested Frequency List information received and stored via a previous sidelink UE information message or if that is not available, then relies on the pre-configuration of SL positioning interested Rx frequencies.
  • SL Positioning Rx Indicates the reported QoS profile and associated with Interested Unicast, one or more destination/receivers for which the UE is Groupcast, Broadcast interested in reception to the network for SL unicast, Destination List groupcast and broadcast SL-PRS and SLPP/SL positioning.
  • This destination list may contain a set of Layer-2 Destination IDs, which may be generated at the Ranging/SL positioning layer.
  • SL Positioning Source Indicates the Source Layer-2 ID to be used to Identity of Anchor or establish a PC5 link with the respective target UE or Target UE Anchor UE.
  • SL Positioning Parameters to request the transmission resources for Transmission Resource SL positioning or SL-PRS to the serving gNB in the Request Sidelink UE Information report >SL UE Capability Indicates the SL Positioning UE capability to the Information network. Detailed and relevant capabilities for performing SL positioning are conveyed using the SL Positioning capabilities IE under SL Positioning- related information.
  • >SL Positioning Cast Indicates the cast type for the corresponding Type destination for which to request the resources for SL- PRS and/or SLPP messages
  • SL Positioning Indicates the destination for which the SL Positioning Destination ID TX resource request and allocation from the network are applicable. This destination ID may include a Layer-2 Destination ID, which may be generated at the Ranging/SL positioning layer.
  • the RLC mode for one sidelink radio bearer is aligned between UE and NW by the SL QoS Flow ID >SL Tx Frequency List
  • SL QoS Flow ID >SL Tx Frequency List
  • Each entry of this field indicates the index of frequency on which the UE is interested to transmit SL-PRS and SL Positioning (SLPP) messages.
  • the value 1 corresponds to the frequency of first entry in SL Frequency Info List broadcast in SIB12
  • the value 2 corresponds to the frequency of second entry in SL Frequency Info List broadcast in SIB12 and so on.
  • SL Positioning Tx Interested Frequency List information received and stored via a previous sidelink UE information message or if that is not available, then relies on the pre-configuration of SL positioning interested Tx frequencies > SL Tx Synchronization
  • the requesting UE shall include the same number of entries, listed in the same order, as in SL Tx Frequency List, i.e. one for each carrier frequency included in SL Tx Frequency List.
  • the synchronization references may include GNSS synch source, eNB/gNB sync source, or sync reference UE Attorney Docket No.
  • SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 47 >SL Positioning Session Indicates the particular SL positioning session ID for ID which the transmission resource is requested.
  • a UE may request resources for one or more parallel SL positioning sessions. This information can be retrieved via cross layer interaction between SLPP and RRC.
  • UE-type Indicates whether the UE is acting as an Anchor UE, target UE, Server UE, Client UE, or Assistant UE.
  • SL Positioning-related Parameters that convey SL positioning-related Information information applicable to a particular session
  • SL Positioning Indicates the SL Positioning capabilities of the UE Capabilities including supported positioning methods and can be retrieved via cross layer interaction between SLPP and RRC
  • SL Positioning Methods Indicates the SL positioning method for which the transmission resources are requested for transmission of SL-PRS.
  • SL Positioning QoS Indicates the associated Positioning QoS associated to Information List the transmission of resource request with the parameters detailed earlier in Embodiment 1.
  • SL Positioning Parameters to request the transmission resources for Transmission Resource SL positioning discovery to the serving gNB in the Discovery Request Sidelink UE Information report >SL Cast Type SL Indicates the cast type for the corresponding Positioning Discovery destination for which to request the SL positioning discovery messages
  • SL Positioning Indicates the destination for which the SL Positioning Discovery Destination ID discovery resource request and allocation from the network are applicable.
  • SL Positioning Indicates the source L2 ID of SL Positioning Discovery Source ID discovery transmission by target-UE, anchor-UE, server-UE, Client UE or the like.
  • Each entry of this field indicates the index of Discovery Frequency frequency on which the UE is interested to transmit List SL Positioning Discovery messages.
  • the value 1 corresponds to the frequency of first entry in SL Frequency Info List broadcast in SIB12
  • the value 2 corresponds to the frequency of second entry in SL Frequency Info List broadcast in SIB12 and so on. If SIB12 is not provided then the UE relies on the same SL Positioning Tx Discovery Frequency List information received and stored via a previous sidelink UE information message or if that is not available, then relies on the pre-configuration of SL positioning interested Tx Discovery frequencies.
  • Step 906 Transmission time-frequency resources from the NE 102 to the UE 104 including resource pool information (e.g., dedicated SL-PRS only resource pool, shared pool including SL-PRS and SL data) which may be provided to the UE 104 via lower layer signaling such as DCI and/or an RRC message, e.g., RRCReconfiguration and/or a separate/new SL Positioning Information message.
  • resource pool information e.g., dedicated SL-PRS only resource pool, shared pool including SL-PRS and SL data
  • RRC message e.g., RRCReconfiguration and/or a separate/new SL Positioning Information message.
  • This resource message can be a high-level resource configuration message indicating an overall set of resources to perform SL-PRS and SL positioning data message transmission applicable to a cell.
  • Mode 1/Scheme 1 can refer to a centralized resource allocation scheme, where the gNB manages and schedules SL transmissions,
  • one UE may transmit sidelink UE information message on behalf of multiple UEs involved within a single SL positioning session. This can reduce the signaling overhead of each UE involved in a SL positioning session from transmitting a SL UE information message individually.
  • implementations also include SL positioning assistance data delivery involving a location server.
  • the location server may deliver the SL-PRS (SL Positioning) assistance data such as including Mode 1 and/or Mode 2 dedicated (SL-PRS only) and/or shared/common (SL-PRS and SL data) resource pool information in a semi-static manner to a UE via LPP/SLPP signaling, e.g., upon request by the UE and/or periodically after a period of time.
  • SL-PRS SL Positioning
  • SL-PRS SL Positioning assistance data
  • SL-PRS SL Positioning assistance data
  • a serving gNB e.g., serving NG-RAN node
  • neighboring gNBs may transmit unsolicited SL PRS configuration response messages containing requested SL-PRS transmission characteristics to a location server.
  • solicited requests may be transmitted by the location server to receive the SL-PRS transmission characteristics from the NG-RAN nodes.
  • Figure 10 illustrates an example of a procedure 1000 that supports sidelink positioning assistance in accordance with aspects of the present disclosure.
  • the procedure 1000 provides for provision of SL-PRS semi-static configuration information by the location server to UE/device.
  • the SL-PRS semi-static configuration consists of SL-PRS transmission characteristics, which may enable the UE to transmit SL-PRS to one or more other UEs, e.g., unicast, groupcast, or broadcast.
  • the semi-static configuration may also apply for the transmission of SL positioning data messages, e.g., SLPP messages to one or more other UE such as via unicast, groupcast, and/or broadcast.
  • the UE may use the semi-static configuration based on a configured validity criteria (e.g., time-based criteria, area-based criteria, etc.) associated with the one or more semi-static configurations. If the semi-static configuration is invalid, then the associated one or more semi- static configurations may also be considered invalid.
  • the UE/device may represent a target-UE, anchor UE, server UE, a UE involved in the transmission of SL-PRS, etc.
  • a location server 1002 may solicit from an NE 102 (e.g., an NG-RAN node) a request for SL-PRS configuration information including SL-PRS transmission characteristics from the applicable NG-RAN node, which may be provided on periodical basis or whenever the said transmission characteristics have been updated/released.
  • an NE 102 e.g., an NG-RAN node
  • SL-PRS configuration information including SL-PRS transmission characteristics from the applicable NG-RAN node
  • the requested SL-PRS transmission characteristics may include one or more of: x SL Positioning Dedicated Resource Pool ID for Mode/Scheme 1 or Mode/Scheme 2 SL- PRS or SL positioning transmissions; x SL Positioning Shared Resource Pool ID for Mode/Scheme 1 or Mode/Scheme 2 SL- PRS or SL positioning transmissions; x A SL-PRS Resource Index ID comprising the following may also be shared with the location server from the NG-RAN node (In implementations the NG-RAN node can receive this information from the UE in the case of SL MO-LR or SL UE-based positioning): o SL-PRS bandwidth in terms of PRBs, subchannels, subchannel size; o SL-PRS Comb size in terms of: ⁇ SL-PRS comb offsets and associated SL-PRS comb sizes (N); Attorney Docket No.
  • a SL-PRS resource ID can identify a time-frequency resource within a slot of a dedicated SL PRS resource pool that is used for SL PRS transmission and in scenarios involving a shared resource pool with SL data transmissions, identify a time-frequency resource based on a SL PRS resource ID and a SL PRS frequency domain allocation.
  • SL-PRS ID which uniquely identifies a SL-PRS based on SL-PRS Resource ID and/or SL-PRS Resource Set ID; o SL Positioning Session ID; o SL-PRS Resource Set ID; o SL BWP ID; o SL Carrier ID; o SL-PRS Repetitions; and/or o SL-PRS muting pattern.
  • Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 52 x Validity time associated with the above SL-PRS transmission characteristics, based on a start timer and duration or an expiry timer.
  • the validity of the semi- static SL PRS configurations may be associated with an area validity, e.g., the SL-PRS configurations are only valid in certain zones with zone IDs, cells, TRPs, PCI, CGI, TAI, RAN notification areas, and/or combinations thereof.
  • Example signaling may include NRPPa signaling and associated messaging.
  • the NE 102 may respond with one or more of the SL-PRS configuration information including SL-PRS transmission characteristics.
  • Example signaling may include NRPPa signaling and associated messaging.
  • the NE 102 may indicate this accordingly.
  • Example signaling may include NRPPa signaling and associated messaging.
  • the UE 104 may request semi-static SL positioning assistance data.
  • the request for semi-static SL positioning assistance data configuration may include SL-PRS transmission characteristics and/or SL positioning data message resources.
  • the semi-static SL positioning assistance data may override preconfigured SL positioning assistance data.
  • the UE 104 may first utilize the semi-static SL positioning assistance data configuration before previously stored and/or pre-configured semi-static SL positioning assistance data configuration.
  • Example signaling may include SLPP/LPP signaling and associated messaging.
  • the location server 1002 may signal the SL positioning assistance data including the SL-PRS semi-static transmission characteristics to the UE 104 using UE-specific signaling such as LPP/SLPP or broadcast signaling via positioning SIBs.
  • Example signaling may include SLPP/LPP signaling and associated messaging.
  • the location server 1002 may signal the unavailability of the requested SL-PRS semi-static transmission characteristics to the UE 104 using UE-specific signaling such as LPP/SLPP.
  • steps 1006, 1008, 1012, and/or 1014 may be transmitted in an unsolicited manner.
  • Example signaling may include SLPP/LPP signaling and associated messaging.
  • Figure 11 illustrates an example of a procedure 1100 that supports sidelink positioning assistance in accordance with aspects of the present disclosure.
  • the procedure 1100 Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 53 for instance, provides for discovered Ues for SL positioning and associated coverage status without location server involvement.
  • a NE 102 e.g., an NG-RAN node such as a serving gNB
  • may transmit to a UE 104 SIB 12 and/or new SL positioning SIB V2X SL Common Configurations including common SL Positioning configurations.
  • the UE 104 may transmit to the NE 102 a sidelink UE information message including discovered Ues and associated coverage status.
  • the NE 102 may transmit to the UE 104 a resource message including SL positioning time-frequency information, e.g., a SL positioning resource pool configuration.
  • SL positioning time-frequency information e.g., a SL positioning resource pool configuration.
  • the request for SL positioning assistance data can include the following information: x List of Discovered Ues consisting of: o UE-type: Anchor-UE (with or without known location information), Server UE, Client UE, Assistant UE; o UE ID such as 5G TMSI (when in-coverage), layer 2 source-ID, layer-2 destination-ID, group IDs and associated member IDs; o Coverage status indication using a flag or choice variable comprising of in- coverage or out-of-coverage; x SL Positioning QoS information.
  • Figure 12 illustrates an example of a procedure 1200 that supports sidelink positioning assistance in accordance with aspects of the present disclosure.
  • the procedure 1200 provides for discovered UE for SL positioning and associated coverage status with location server involvement.
  • a location server 1002 e.g., LMF
  • a NE 102 e.g., an NG-RAN node
  • the NE 102 can transmit SL-PRS transmission characteristics to the location server 1002.
  • the NE 102 can transmit to the location server 1002 an indication of unavailability of SL-PRS configuration information.
  • the UE 104 can optionally transmit to the location server 1002 a request for SL positioning assistance data including discovered UEs and associated coverage status.
  • the location server 1002 can transmit to the UE 104 SL positioning assistance data and at 1212 the location server 1002 can transmit to the UE 104 an indication of the unavailability of SL positioning assistance data.
  • the UE 104 in the procedures 1100, 1200 may have already received coverage status of discovered UEs via various signaling mechanisms including lower layer signaling such as 1 st or 2 nd stage SCI, SL MAC CE and/or higher-layer signaling such as PC5 RRC, SLPP, PC5-S and so forth.
  • a request for the coverage status may also be based on solicited on unsolicited messages.
  • Figure 13 illustrates an example of a UE 1300 in accordance with aspects of the present disclosure.
  • the UE 1300 may include a processor 1302, a memory 1304, a controller 1306, and a transceiver 1308.
  • the processor 1302, the memory 1304, the controller 1306, or the transceiver 1308, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein. These components may be coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces. [0124]
  • the processor 1302, the memory 1304, the controller 1306, or the transceiver 1308, or various combinations or components thereof may be implemented in hardware (e.g., circuitry).
  • the hardware may include a processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), or other programmable logic device, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • the processor 1302 may include an intelligent hardware device (e.g., a general- purpose processor, a DSP, a CPU, an ASIC, an FPGA, or any combination thereof). In some implementations, the processor 1302 may be configured to operate the memory 1304. In some other implementations, the memory 1304 may be integrated into the processor 1302. The processor 1302 may be configured to execute computer-readable instructions stored in the memory 1304 to cause the UE 1300 to perform various functions of the present disclosure. [0126] The memory 1304 may include volatile or non-volatile memory. The memory 1304 may store computer-readable, computer-executable code including instructions when executed Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No.
  • SMM920230065-WO-PCT 55 by the processor 1302 cause the UE 1300 to perform various functions described herein.
  • the code may be stored in a non-transitory computer-readable medium such as the memory 1304 or another type of memory.
  • Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer.
  • the processor 1302 and the memory 1304 coupled with the processor 1302 may be configured to cause the UE 1300 to perform one or more of the functions described herein (e.g., executing, by the processor 1302, instructions stored in the memory 1304).
  • the processor 1302 may support wireless communication at the UE 1300 in accordance with examples as disclosed herein.
  • the UE 1300 may be configured to or operable to support a means for transmitting, from the UE to a second apparatus, a configuration message including an indication to perform one or more of sidelink positioning reference signal (SL- PRS) or SL positioning data message transmission, the configuration message including one or more SL positioning parameters; and receiving, from the second apparatus, a resource configuration message including a set of time-frequency resources in which to perform the one or more of the SL-PRS or SL positioning data message transmission.
  • SL- PRS sidelink positioning reference signal
  • the UE 1300 may be configured to support any one or combination of receiving a higher-layer trigger to perform the one or more of the SL-PRS or SL positioning data message transmission;
  • the higher-layer trigger includes one or more of sidelink positioning protocol (SLPP) layer, vehicle to everything (V2X) layer, ProSe layer, ranging layer, SL positioning layer, or sidelink positioning application layer; receiving the higher-layer trigger from a UE via one or more of: higher-layer signaling including one or more of sidelink positioning protocol layer (SLPP), PC5 radio resource control (RRC), or PC5-S; or lower layer signaling including one or more of first stage sidelink control information (SCI), first stage medium access control (MAC) control element (CE), second stage SCI, or second stage MAC CE;
  • the configuration message includes one or more of a SL positioning QoS profile, at least one transport QoS profile indicating SL positioning transport QoS parameters, a SL positioning session identifier, SL-PRS transmission characteristics, or one or more
  • the UE 1300 may be configured to support any one or combination of receiving a system information message including one or more common SL positioning Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 56 configurations, the one or more common SL positioning configurations including at least one of a SL positioning radio bearer configuration list, SL-PRS priority, positioning message priority, SL positioning frequency information list, SL-PRS/SL positioning area validity information or SL positioning measurement common information; the UE includes one or more of a target UE, an anchor UE, a server UE, or an apparatus configured to perform one or more of SL-PRS or SL positioning data message transmission; the configuration message includes one or more of: a SL positioning transmission resource request; at least one of a SL positioning receiver unicast, groupcast, or broadcast destination list; one or more of a SL positioning transmitter or receiver frequency list; SL positioning UE type; one or more SL positioning capabilities;
  • the UE 1300 may support to transmit, from the UE to a NE, a configuration message including an indication to perform one or more of sidelink positioning reference signal (SL-PRS) or SL positioning data message transmission, the configuration message including one or more SL positioning parameters; and receive, from the second apparatus, a resource configuration message including a set of time-frequency resources in which to perform the one or more of the SL-PRS or SL positioning data message transmission.
  • SL-PRS sidelink positioning reference signal
  • SL positioning data message including one or more SL positioning parameters
  • the UE 1300 may be configured to support any one or combination of where the UE receives a higher-layer trigger to perform the one or more of the SL-PRS or SL positioning data message transmission;
  • the higher-layer trigger includes one or more of sidelink positioning protocol (SLPP) layer, vehicle to everything (V2X) layer, ProSe layer, ranging layer, SL positioning layer, or sidelink positioning application layer;
  • the UE receives the higher-layer trigger from another UE via one or more of: higher-layer signaling including one or more of sidelink positioning protocol layer (SLPP), PC5 radio resource control (RRC), or PC5-S; or lower layer signaling including one or more of first stage sidelink control information (SCI), Attorney Docket No.
  • SLPP sidelink positioning protocol
  • V2X vehicle to everything
  • ProSe layer ProSe layer
  • ranging layer ranging layer
  • SL positioning layer or sidelink positioning application layer
  • the UE receives the higher-layer trigger from another UE via one or more of: higher-
  • the configuration message includes one or more of a SL positioning QoS profile, at least one transport QoS profile indicating SL positioning transport QoS parameters, a SL positioning session identifier, SL-PRS transmission characteristics, or one or more UE discovered for SL positioning [0132] Additionally, the UE 1300 may be configured to support any one or combination of where the UE receives a system information message including one or more common SL positioning configurations, the one or more common SL positioning configurations including at least one of a SL positioning radio bearer configuration list, SL-PRS priority, positioning message priority, SL positioning frequency information list, SL-PRS/SL positioning area validity information or SL positioning measurement common information; the UE includes one or more of a target UE, an anchor UE, a server UE, or an apparatus
  • the controller 1306 may manage input and output signals for the UE 1300.
  • the controller 1306 may also manage peripherals not integrated into the UE 1300.
  • the controller 1306 may utilize an operating system such as iOS®, ANDROID®, WINDOWS®, or other operating systems.
  • the controller 1306 may be implemented as part of the processor 1302.
  • the UE 1300 may include at least one transceiver 1308. In some other implementations, the UE 1300 may have more than one transceiver 1308.
  • SMM920230065-WO-PCT 58 transceiver 1308 may represent a wireless transceiver.
  • the transceiver 1308 may include one or more receiver chains 1310, one or more transmitter chains 1312, or a combination thereof.
  • a receiver chain 1310 may be configured to receive signals (e.g., control information, data, packets) over a wireless medium.
  • the receiver chain 1310 may include one or more antennas to receive a signal over the air or wireless medium.
  • the receiver chain 1310 may include at least one amplifier (e.g., a low-noise amplifier (LNA)) configured to amplify the received signal.
  • LNA low-noise amplifier
  • the receiver chain 1310 may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal.
  • the receiver chain 1310 may include at least one decoder for decoding the demodulated signal to receive the transmitted data.
  • a transmitter chain 1312 may be configured to generate and transmit signals (e.g., control information, data, packets).
  • the transmitter chain 1312 may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium.
  • the at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM), frequency modulation (FM), or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM).
  • the transmitter chain 1312 may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over the wireless medium.
  • the transmitter chain 1312 may also include one or more antennas for transmitting the amplified signal into the air or wireless medium.
  • Figure 14 illustrates an example of a processor 1400 in accordance with aspects of the present disclosure.
  • the processor 1400 may be an example of a processor configured to perform various operations in accordance with examples as described herein.
  • the processor 1400 may include a controller 1402 configured to perform various operations in accordance with examples as described herein.
  • the processor 1400 may optionally include at least one memory 1404, which may be, for example, an L1/L2/L3 cache. Additionally, or alternatively, the processor 1400 may optionally include one or more arithmetic-logic units (ALUs) 1406.
  • ALUs arithmetic-logic units
  • One or more of these components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses).
  • the processor 1400 may be a processor chipset and include a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receiving, Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 59 obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) in accordance with examples as described herein.
  • a protocol stack e.g., a software stack
  • the processor chipset may include one or more cores, one or more caches (e.g., memory local to or included in the processor chipset (e.g., the processor 1400) or other memory (e.g., random access memory (RAM), read-only memory (ROM), dynamic RAM (DRAM), synchronous dynamic RAM (SDRAM), static RAM (SRAM), ferroelectric RAM (FeRAM), magnetic RAM (MRAM), resistive RAM (RRAM), flash memory, phase change memory (PCM), and others).
  • RAM random access memory
  • ROM read-only memory
  • DRAM dynamic RAM
  • SDRAM synchronous dynamic RAM
  • SRAM static RAM
  • FeRAM ferroelectric RAM
  • MRAM magnetic RAM
  • RRAM resistive RAM
  • flash memory phase change memory
  • PCM phase change memory
  • the controller 1402 may be configured to manage and coordinate various operations (e.g., signaling, receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) of the processor 1400 to cause the processor 1400 to support various operations in accordance with examples as described herein.
  • the controller 1402 may operate as a control unit of the processor 1400, generating control signals that manage the operation of various components of the processor 1400. These control signals include enabling or disabling functional units, selecting data paths, initiating memory access, and coordinating timing of operations.
  • the controller 1402 may be configured to fetch (e.g., obtain, retrieve, receive) instructions from the memory 1404 and determine subsequent instruction(s) to be executed to cause the processor 1400 to support various operations in accordance with examples as described herein.
  • the controller 1402 may be configured to track memory addresses of instructions associated with the memory 1404.
  • the controller 1402 may be configured to decode instructions to determine the operation to be performed and the operands involved.
  • the controller 1402 may be configured to interpret the instruction and determine control signals to be output to other components of the processor 1400 to cause the processor 1400 to support various operations in accordance with examples as described herein. Additionally, or alternatively, the controller 1402 may be configured to manage flow of data within the processor 1400.
  • the controller 1402 may be configured to control transfer of data between registers, ALUs 1406, and other functional units of the processor 1400.
  • the memory 1404 may include one or more caches (e.g., memory local to or included in the processor 1400 or other memory, such as RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc. In some implementations, the memory 1404 may reside within or on a processor chipset (e.g., local to the processor 1400). In some other Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 60 implementations, the memory 1404 may reside external to the processor chipset (e.g., remote to the processor 1400).
  • the memory 1404 may store computer-readable, computer-executable code including instructions that, when executed by the processor 1400, cause the processor 1400 to perform various functions described herein.
  • the code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory.
  • the controller 1402 and/or the processor 1400 may be configured to execute computer-readable instructions stored in the memory 1404 to cause the processor 1400 to perform various functions.
  • the processor 1400 and/or the controller 1402 may be coupled with or to the memory 1404, the processor 1400, and the controller 1402, and may be configured to perform various functions described herein.
  • the processor 1400 may include multiple processors and the memory 1404 may include multiple memories.
  • One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein.
  • the one or more ALUs 1406 may be configured to support various operations in accordance with examples as described herein.
  • the one or more ALUs 1406 may reside within or on a processor chipset (e.g., the processor 1400).
  • the one or more ALUs 1406 may reside external to the processor chipset (e.g., the processor 1400).
  • One or more ALUs 1406 may perform one or more computations such as addition, subtraction, multiplication, and division on data.
  • one or more ALUs 1406 may receive input operands and an operation code, which determines an operation to be executed.
  • One or more ALUs 1406 may be configured with a variety of logical and arithmetic circuits, including adders, subtractors, shifters, and logic gates, to process and manipulate the data according to the operation. Additionally, or alternatively, the one or more ALUs 1406 may support logical operations such as AND, OR, exclusive-OR (XOR), not-OR (NOR), and not-AND (NAND), enabling the one or more ALUs 1406 to handle conditional operations, comparisons, and bitwise operations.
  • the processor 1400 may support wireless communication in accordance with examples as disclosed herein.
  • the processor 1400 may be configured to or operable to transmit, from a first apparatus to a second apparatus, a configuration message including an indication to perform one or more of sidelink positioning reference signal (SL-PRS) or SL positioning data message transmission, the configuration message including one or more SL positioning Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 61 parameters; and receive, from the second apparatus, a resource configuration message including a set of time-frequency resources in which to perform the one or more of the SL-PRS or SL positioning data message transmission.
  • SL-PRS sidelink positioning reference signal
  • the processor 1400 may be configured to support any one or combination of to receive a higher-layer trigger to perform the one or more of the SL-PRS or SL positioning data message transmission;
  • the higher-layer trigger includes one or more of sidelink positioning protocol (SLPP) layer, vehicle to everything (V2X) layer, ProSe layer, ranging layer, SL positioning layer, or sidelink positioning application layer;
  • the at least one controller is configured to cause the processor to receive the higher-layer trigger from a UE via one or more of: higher-layer signaling including one or more of sidelink positioning protocol layer (SLPP), PC5 radio resource control (RRC), or PC5-S; or lower layer signaling including one or more of first stage sidelink control information (SCI), first stage medium access control (MAC) control element (CE), second stage SCI, or second stage MAC CE;
  • the configuration message includes one or more of a SL positioning QoS profile, at least one transport QoS profile indicating SL positioning transport QoS parameters, a SL positioning session identifier
  • the processor 1400 may be configured to support any one or combination of where the first apparatus includes one or more of a target UE, an anchor UE, a server UE, or an apparatus configured to perform one or more of SL-PRS or SL positioning data message transmission;
  • the configuration message includes one or more of: a SL positioning transmission resource request; at least one of a SL positioning receiver unicast, groupcast, or broadcast destination list; one or more of a SL positioning transmitter or receiver frequency list; SL positioning UE type; one or more SL positioning capabilities; a SL positioning transmission resource discovery request; a SL positioning destination identifier; a SL positioning cast type; or a coverage status of a discovered UE;
  • the configuration message includes one or more of SL- PRS dedicated shared pools for at least one of mode 1 and Scheme 1 transmission or mode 2 and Attorney Docket No.
  • FIG. 15 illustrates an example of a NE 1500 in accordance with aspects of the present disclosure.
  • the NE 1500 may include a processor 1502, a memory 1504, a controller 1506, and a transceiver 1508.
  • the processor 1502, the memory 1504, the controller 1506, or the transceiver 1508, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein. These components may be coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces. [0148]
  • the processor 1502, the memory 1504, the controller 1506, or the transceiver 1508, or various combinations or components thereof may be implemented in hardware (e.g., circuitry).
  • the hardware may include a processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), or other programmable logic device, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • the processor 1502 may include an intelligent hardware device (e.g., a general- purpose processor, a DSP, a CPU, an ASIC, an FPGA, or any combination thereof). In some implementations, the processor 1502 may be configured to operate the memory 1504. In some other implementations, the memory 1504 may be integrated into the processor 1502. The processor 1502 may be configured to execute computer-readable instructions stored in the memory 1504 to cause the NE 1500 to perform various functions of the present disclosure. [0150] The memory 1504 may include volatile or non-volatile memory. The memory 1504 may store computer-readable, computer-executable code including instructions when executed by the processor 1502 cause the NE 1500 to perform various functions described herein.
  • an intelligent hardware device e.g., a general- purpose processor, a DSP, a CPU, an ASIC, an FPGA, or any combination thereof.
  • the processor 1502 may be configured to operate the memory 1504.
  • the memory 1504 may be integrated into the processor 1502.
  • the processor 1502 may be configured to execute computer
  • the code may be stored in a non-transitory computer-readable medium such as the memory 1504 or another type of memory.
  • Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer.
  • the processor 1502 and the memory 1504 coupled with the processor 1502 may be configured to cause the NE 1500 to perform one or more of the functions described herein (e.g., executing, by the processor 1502, instructions stored in the memory 1504).
  • the processor 1502 may support wireless communication at the NE 1500 in accordance with examples as disclosed herein.
  • the NE 1500 may be configured to or operable to support a means for receiving, at the NE and from a UE, a configuration message including an indication to perform one or more of sidelink positioning reference signal (SL-PRS) or SL positioning data message transmission, the configuration message including one or more SL positioning parameters; and transmitting, to the UE, a resource configuration message including a set of time-frequency resources in which to perform the one or more of the SL-PRS or SL positioning data message transmission [0152] Additionally, the NE 1500 may be configured to support any one or combination of transmitting a system information message including one or more common SL positioning configurations; the one or more common SL positioning configurations include at least one of a SL positioning radio bearer configuration list, SL-PRS priority, positioning message priority, SL positioning frequency information list, SL-PRS/SL positioning area validity information or SL positioning measurement common information.
  • the NE 1500 may be configured to or operable to support a means for generating, at a NE, a semi-static configuration of one or more sidelink positioning reference signal (SL-PRS) transmission characteristics including one or more SL positioning or shared resource pools; and transmitting the semi-static configuration to a UE.
  • S-PRS sidelink positioning reference signal
  • the NE 1500 may be configured to support any one or combination of where the semi-static configuration is associated with one or more of a validity time or a validity area; transmitting the semi-static configuration as one or more of a solicited message or an unsolicited message; transmitting, to the UE, an indication of unavailability of SL positioning semi-static configuration;
  • the SL-PRS transmission characteristics include one or more of: SL positioning dedicated resource pool identifier for one or more of Mode 1 or Scheme 1 SL-PRS transmission; SL positioning dedicated resource pool identifier for one or more of Mode 1 or Scheme 1 SL positioning transmission; SL positioning dedicated resource pool identifier for one or more of Mode 2 or Scheme 2 SL-PRS transmission; SL positioning dedicated resource pool identifier for one or more of Mode 2 or Scheme 2 SL positioning transmission; SL positioning shared resource pool identifier for one or more of Mode 1 or Scheme 1 SL-PRS positioning Attorney Docket No.
  • BWP bandwidth part
  • the NE 1500 may be configured to support any one or combination of transmitting the semi-static configuration via one or more of UE specific signaling or broadcast signaling; one or more of: activating the semi-static configuration via one or more of UE specific signaling or broadcast signaling; or deactivating the semi-static configuration via one or more of UE specific signaling or broadcast signaling.
  • the NE 1500 may support to receive, at an NE from a second apparatus, a configuration message including an indication to perform one or more of sidelink positioning reference signal (SL-PRS) or SL positioning data message transmission, the configuration message including one or more SL positioning parameters; and transmit, to the second apparatus, a resource configuration message including a set of time-frequency resources in which to perform the one or more of the SL-PRS or SL positioning data message transmission.
  • SL-PRS sidelink positioning reference signal
  • SL positioning data message including one or more SL positioning parameters
  • the NE 1500 may be configured to support any one or combination of where the NE transmits a system information message including one or more common SL positioning configuration; the one or more common SL positioning configurations include at least one of a SL positioning radio bearer configuration list, SL-PRS priority, positioning message priority, SL positioning frequency information list, SL-PRS/SL positioning area validity information or SL positioning measurement common information.
  • the NE 1500 may support to generate a semi-static configuration of one or more sidelink positioning reference signal (SL-PRS) transmission characteristics including one or more SL positioning or shared resource pools; and transmit the semi-static configuration to a UE.
  • SL-PRS sidelink positioning reference signal
  • the NE 1500 may be configured to support any one or combination of where the semi-static configuration is associated with one or more of a validity time or a validity Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No.
  • the NE transmits the semi-static configuration as one or more of a solicited message or an unsolicited message; the NE transmits, to the UE, an indication of unavailability of SL positioning semi-static configuration;
  • the SL-PRS transmission characteristics include one or more of: SL positioning dedicated resource pool identifier for one or more of Mode 1 or Scheme 1 SL-PRS transmission; SL positioning dedicated resource pool identifier for one or more of Mode 1 or Scheme 1 SL positioning transmission; SL positioning dedicated resource pool identifier for one or more of Mode 2 or Scheme 2 SL-PRS transmission; SL positioning dedicated resource pool identifier for one or more of Mode 2 or Scheme 2 SL positioning transmission; SL positioning shared resource pool identifier for one or more of Mode 1 or Scheme 1 SL-PRS positioning transmission; SL positioning shared resource pool identifier for one or more of Mode 1 or Scheme 1 SL-PRS positioning transmission; SL positioning shared resource pool identifier for one or more of Mode 1 or Scheme 1 SL positioning transmission; SL positioning shared resource
  • the controller 1506 may also manage peripherals not integrated into the NE 1500.
  • the controller 1506 may utilize an operating system such as iOS®, ANDROID®, WINDOWS®, or other operating systems.
  • the controller 1506 may be implemented as part of the processor 1502.
  • the NE 1500 may include at least one transceiver 1508.
  • the NE 1500 may have more than one transceiver 1508.
  • the transceiver 1508 may represent a wireless transceiver.
  • the transceiver 1508 may include one or more receiver chains 1510, one or more transmitter chains 1512, or a combination thereof. Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No.
  • a receiver chain 1510 may be configured to receive signals (e.g., control information, data, packets) over a wireless medium.
  • the receiver chain 1510 may include one or more antennas to receive a signal over the air or wireless medium.
  • the receiver chain 1510 may include at least one amplifier (e.g., a low-noise amplifier (LNA)) configured to amplify the received signal.
  • the receiver chain 1510 may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal.
  • the receiver chain 1510 may include at least one decoder for decoding the demodulated signal to receive the transmitted data.
  • a transmitter chain 1512 may be configured to generate and transmit signals (e.g., control information, data, packets).
  • the transmitter chain 1512 may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium.
  • the at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM), frequency modulation (FM), or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM).
  • the transmitter chain 1512 may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over the wireless medium.
  • the transmitter chain 1512 may also include one or more antennas for transmitting the amplified signal into the air or wireless medium.
  • FIG. 16 illustrates a flowchart of a method 1600 in accordance with aspects of the present disclosure.
  • the operations of the method may be implemented by a UE as described herein.
  • the UE may execute a set of instructions to control the function elements of the UE to perform the described functions.
  • the method described herein describes a possible implementation, and that the operations and the steps may be rearranged or otherwise modified and that other implementations are possible.
  • the method may include transmitting, from a first apparatus to a second apparatus, a configuration message comprising an indication to perform one or more of sidelink positioning reference signal (SL-PRS) or SL positioning data message transmission, the configuration message comprising one or more SL positioning parameters.
  • S-PRS sidelink positioning reference signal
  • the operations of 1602 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1602 may be performed by a UE as described with reference to Figure 13. Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 67 [0167]
  • the method may include receiving, from the second apparatus, a resource configuration message comprising a set of time-frequency resources in which to perform the one or more of the SL-PRS or SL positioning data message transmission.
  • the operations of 1604 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1604 may be performed by a UE as described with reference to Figure 13.
  • FIG. 17 illustrates a flowchart of a method 1700 in accordance with aspects of the present disclosure.
  • the operations of the method may be implemented by a NE as described herein.
  • the NE may execute a set of instructions to control the function elements of the NE to perform the described functions.
  • the method described herein describes a possible implementation, and that the operations and the steps may be rearranged or otherwise modified and that other implementations are possible.
  • the method may include receiving, at a first apparatus and from a second apparatus, a configuration message comprising an indication to perform one or more of sidelink positioning reference signal (SL-PRS) or SL positioning data message transmission, the configuration message comprising one or more SL positioning parameters.
  • S-PRS sidelink positioning reference signal
  • the operations of 1702 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1702 may be performed by a NE as described with reference to Figure 15. [0170] At 1704, the method may include transmitting, to the second apparatus, a resource configuration message comprising a set of time-frequency resources in which to perform the one or more of the SL-PRS or SL positioning data message transmission. The operations of 1704 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of Zx04 may be performed by a NE as described with reference to Figure 15. [0171] Figure 18 illustrates a flowchart of a method 1800 in accordance with aspects of the present disclosure.
  • the operations of the method may be implemented by a NE as described herein.
  • the NE may execute a set of instructions to control the function elements of the NE to perform the described functions.
  • the method described herein describes a possible implementation, and that the operations and the steps may be rearranged or otherwise modified and that other implementations are possible.
  • Attorney Docket No. SMM920230065-WO-PCT Lenovo Docket No. SMM920230065-WO-PCT 68
  • the method may include generating, at a first apparatus, a semi-static configuration of one or more sidelink positioning reference signal (SL-PRS) transmission characteristics including one or more SL positioning or shared resource pools.
  • S-PRS sidelink positioning reference signal
  • the operations of 1802 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1802 may be performed by a NE as described with reference to Figure 15. [0173] At 1804, the method may include transmitting the semi-static configuration to a second apparatus. The operations of 1804 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1804 may be performed by a NE as described with reference to Figure 15. [0174]
  • the description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.

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Abstract

Divers aspects de la présente divulgation se rapportent à l'aide au positionnement de liaison latérale. Un appareil, tel qu'un équipement utilisateur (UE), transmet un message de configuration (par exemple, à un équipement de réseau) comprenant une indication afin de mettre en œuvre une ou plusieurs transmissions de message de données de positionnement SL ou de signal de référence de positionnement de liaison latérale (PRS-SL), et le message de configuration comprend un ou plusieurs paramètres de positionnement SL. L'appareil reçoit un message de configuration de ressources comprenant un ensemble de ressources temps-fréquence dans lesquelles mettre en œuvre la ou les transmissions de message de données de positionnement SL ou de PRS-SL.
PCT/IB2024/057923 2023-08-16 2024-08-15 Aide au positionnement de liaison latérale Pending WO2025037265A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2024326275A AU2024326275A1 (en) 2023-08-16 2024-08-15 Sidelink positioning assistance
CN202480022540.1A CN120958765A (zh) 2023-08-16 2024-08-15 侧行链路定位辅助
MX2025011051A MX2025011051A (es) 2023-08-16 2025-09-18 Asistencia de posicionamiento de enlace lateral

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202363532984P 2023-08-16 2023-08-16
US63/532,984 2023-08-16
US18/805,183 US20250063576A1 (en) 2023-08-16 2024-08-14 Sidelink positioning assistance
US18/805,183 2024-08-14

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WO2022184240A1 (fr) * 2021-03-02 2022-09-09 Huawei Technologies Co., Ltd. Procédé et appareil de positionnement de dispositif utilisateur sur la base d'une liaison latérale
US20230224121A1 (en) * 2020-05-29 2023-07-13 Lenovo (Singapore) Pte. Ltd. Requesting a sidelink positioning reference signal resource

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US20230224121A1 (en) * 2020-05-29 2023-07-13 Lenovo (Singapore) Pte. Ltd. Requesting a sidelink positioning reference signal resource
WO2022184240A1 (fr) * 2021-03-02 2022-09-09 Huawei Technologies Co., Ltd. Procédé et appareil de positionnement de dispositif utilisateur sur la base d'une liaison latérale

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