Sidelink ranging for positioning reference signal type

Abstract

Apparatuses, methods, and systems are disclosed for sidelink ranging for positioning reference signal types. An apparatus (1100) includes a transceiver (1125) that receives a configuration of at least one positioning reference signal (“PRS”) type of PRS for transmission of the PRS to at least one second network device, receives a resource pool configuration for transmission of the PRS associated with a relative positioning measurement, and receives a multiplexing configuration for multiplexing a physical sidelink control channel (“PSCCH”) with the PRS. The apparatus (1100) includes a processor (1105) that multiplexes the PSCCH with the PRS according to the multiplexing configuration. The transceiver (1125) transmits the multiplexed PSCCH and PRS to the at least one second device according to the PRS configuration and the resource pool configuration.

Description

[0001] Cross-references in related fields

[0002] This application claims the benefit of U.S. Provisional Patent Application No. 63 / 153,844, filed February 25, 2021, entitled “SIDELINK RANGING FOR POSITIONING REFERENCE SIGNAL TYPES”, which is incorporated herein by reference. Background Technology

[0003] The topics disclosed in this article generally relate to wireless communication, and more specifically to the type of positioning reference signal. Background Technology

[0005] In some wireless communication systems, despite the existence of the 3GPP positioning framework, which implements user equipment ("UE")-assisted and UE-based positioning methods, there is currently a lack of support for efficient UE-to-UE distance determination, which is essential for supporting relative positioning applications. Summary of the Invention

[0006] Procedures for lateral walking link ranging for positioning reference signal types are disclosed. These procedures can be implemented by apparatus, systems, methods, or computer program products.

[0007] In one embodiment, the first device includes a transceiver that receives a PRS configuration for transmitting a Positioning Reference Signal (“PRS”) of at least one PRS type to at least one second network device, a resource pool configuration for transmitting a PRS associated with a relative positioning measurement, and a multiplexing configuration for multiplexing a Physical Side Link Control Channel (“PSCCH”) with the PRS. In one embodiment, the first device includes a processor that multiplexes the PSCCH with the PRS according to the multiplexing configuration. In one embodiment, the transceiver transmits the multiplexed PSCCH and PRS to at least one second device according to the PRS configuration and the resource pool configuration.

[0008] In one embodiment, the first method receives a PRS configuration for transmitting a Positioning Reference Signal (“PRS”) of at least one PRS type to at least one second network device, a resource pool configuration for transmitting the PRS associated with a relative positioning measurement, and a multiplexing configuration for multiplexing a Physical Side Link Control Channel (“PSCCH”) with the PRS. In one embodiment, the first method multiplexes the PSCCH with the PRS according to the multiplexing configuration. In another embodiment, the first method transmits the multiplexed PSCCH and PRS to at least one second device according to the PRS configuration and the resource pool configuration.

[0009] In one embodiment, the second device includes a transceiver that receives a PRS configuration of at least one PRS type for receiving a Positioning Reference Signal (“PRS”) from at least one second network device, a resource pool configuration of a ranging signal type for receiving a configuration associated with relative positioning measurements, a multiplexing configuration associated with multiplexing a Physical Side Link Control Channel (“PSCCH”) with the PRS, and receives ranging signals from at least one second network device based on the received PRS configuration, resource pool configuration, and multiplexing configuration.

[0010] In one embodiment, the second method receives a PRS configuration of at least one PRS type for receiving a Positioning Reference Signal (“PRS”) from at least one second network device, a resource pool configuration of a ranging signal type for receiving a configuration associated with relative positioning measurements, a multiplexing configuration associated with multiplexing a Physical Side Link Control Channel (“PSCCH”) with the PRS, and receives a ranging signal from at least one second network device based on the received PRS configuration, resource pool configuration, and multiplexing configuration. Attached Figure Description

[0011] A more detailed description of the embodiments briefly described above will be provided by referring to specific embodiments shown in the accompanying drawings. It should be understood that these drawings depict only a few embodiments and are therefore not to be considered as limiting the scope. The embodiments will be described and explained with additional specificity and detail using the drawings, in which:

[0012] Figure 1 This is a schematic block diagram illustrating one embodiment of a wireless communication system for side-link ranging based on a positioning reference signal type;

[0013] Figure 2 This is a block diagram illustrating one embodiment of the 5G New Radio (“NR”) protocol stack;

[0014] Figure 3It is a schematic diagram depicting an overview of absolute and relative positioning as defined in the Phase 1 specification;

[0015] Figure 4 This is a schematic diagram illustrating one embodiment of a multi-cell RTT process;

[0016] Figure 5 This is a schematic diagram illustrating an embodiment of relative range estimation using an existing single gNB RTT positioning frame;

[0017] Figure 6 This is a schematic diagram illustrating one embodiment of NR beam-based positioning;

[0018] Figure 7A This is an example of DL-TDOA auxiliary data;

[0019] Figure 7B This is an example of a DL-TDOA measurement report;

[0020] Figure 8 This is a schematic diagram illustrating an embodiment of multiplexing PRS type 1 with PSCCH - two options;

[0021] Figure 9 This is a schematic diagram illustrating an embodiment of multiplexing PRS type 2 with PSCCH - two options;

[0022] Figure 10 This is a schematic diagram illustrating an embodiment of multiplexing PRS type 3 with PSCCH;

[0023] Figure 11 This is a block diagram illustrating one embodiment of a user equipment apparatus that can be used for side link ranging for a positioning reference signal type;

[0024] Figure 12 This is a block diagram illustrating one embodiment of a network device apparatus that can be used for side link ranging for a positioning reference signal type;

[0025] Figure 13 This is a block diagram illustrating an embodiment of a first method for side-link ranging for a positioning reference signal type; and

[0026] Figure 14 This is a block diagram illustrating an embodiment of a second method for lateral link ranging for a positioning reference signal type.

[0027] Specific implementation method

[0028] As those skilled in the art will understand, aspects of the embodiments can be embodied as a system, apparatus, method, or program product. Therefore, embodiments can take the form of entirely hardware embodiments, entirely software embodiments (including firmware, resident software, microcode, etc.), or embodiments combining software and hardware aspects.

[0029] For example, the disclosed embodiments can be implemented as hardware circuitry, including custom-designed very large-scale integration (“VLSI”) circuitry or gate arrays, off-the-shelf semiconductors such as logic chips, transistors, or other discrete components. The disclosed embodiments can also be implemented in programmable hardware devices such as field-programmable gate arrays, programmable array logic, programmable logic devices, etc. As another example, the disclosed embodiments may include one or more physical or logical blocks of executable code, which may, for example, be organized as objects, processes, or functions.

[0030] Furthermore, embodiments may take the form of a program product embodied in one or more computer-readable storage devices that store machine-readable code, computer-readable code, and / or program code, hereinafter referred to as code. The storage device may be tangible, non-transitory, and / or non-transitive. The storage device may not embody signals. In certain embodiments, the storage device uses only signals for accessing the code.

[0031] Any combination of one or more computer-readable media may be used. A computer-readable medium may be a computer-readable storage medium. A computer-readable storage medium may be a storage device for storing code. A storage device may be, for example, but not limited to, electronic, magnetic, optical, electromagnetic, infrared, holographic, micromechanical, or semiconductor systems, apparatuses, or devices, or any suitable combination thereof.

[0032] More specific examples of storage devices (a non-exhaustive list) will include the following: electrical connections having one or more wires, portable computer floppy disks, hard disks, random access memory (“RAM”), read-only memory (“ROM”), erasable programmable read-only memory (“EPROM” or flash memory), portable optical disc read-only memory (“CD-ROM”), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing. In the context of this document, a computer-readable storage medium can be any tangible medium that can contain or store programs for use by or in conjunction with an instruction execution system, apparatus, or device.

[0033] The code used to perform the operations for the embodiments can be any number of lines and can be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Python, Ruby, Java, Smalltalk, C++, etc., and conventional procedural programming languages ​​such as the "C" programming language and / or machine languages ​​such as assembly language. The code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the latter scenario, the remote computer can be connected to the user's computer via any type of network, including local area networks ("LANs"), wireless LANs ("WLANs"), or wide area networks ("WANs"), or can be connected to an external computer (e.g., via the Internet through an Internet service provider ("ISP").

[0034] Furthermore, the features, structures, or characteristics of the described embodiments can be combined in any suitable manner. Numerous specific details, such as examples of programming, software modules, user selection, network transactions, database queries, database structures, hardware modules, hardware circuits, hardware chips, etc., are provided in the following description to provide a thorough understanding of the embodiments. However, those skilled in the art will recognize that the embodiments can be practiced without one or more specific details or using other methods, components, materials, etc. In other instances, well-known structures, materials, or operations have not been shown or described in detail to avoid obscuring aspects of the embodiments.

[0035] Throughout this specification, references to "an embodiment," "embodiment," or similar language mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment. Therefore, the phrases "in an embodiment," "in an embodiment," and similar language throughout this specification may, but do not necessarily, refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise expressly specified. Unless otherwise expressly specified, the terms "including," "comprising," "having," and variations thereof mean "including, but not limited to," "including," or "without exception." Unless otherwise expressly specified, the list of enumerated items does not imply that any or all items are mutually exclusive. Unless otherwise expressly specified, the terms "a," "an," and "the" also mean "one or more."

[0036] As used herein, a list containing the conjunction “and / or” includes any single item in the list or a combination of items in the list. For example, a list of A, B, and / or C includes only A, only B, only C, a combination of A and B, a combination of B and C, a combination of A and C, or a combination of A, B, and C. As used herein, a list using the term “one or more of…” includes any single item in the list or a combination of items in the list. For example, one or more of A, B, and C includes only A, only B, only C, a combination of A and B, a combination of B and C, a combination of A and C, or a combination of A, B, and C. As used herein, a list using the term “one of” includes one and only one single item in the list. For example, “one of A, B, and C” includes only A, only B, or only C, excluding combinations of A, B, and C. As used herein, “a member selected from the group consisting of A, B, and C” includes only A, only B, or only C, excluding combinations of A, B, and C. As used in this article, “members selected from groups consisting of A, B, and C and combinations thereof” includes only A, only B, only C, combinations of A and B, combinations of B and C, combinations of A and C, combinations of A and C, or combinations of A, B, and C.

[0037] The following description of various aspects of the embodiments is based on schematic flowcharts and / or schematic block diagrams of methods, apparatus, systems, and program products according to the embodiments. It will be understood that each block in the schematic flowcharts and / or schematic block diagrams, and combinations of blocks in the schematic flowcharts and / or schematic block diagrams, can be implemented by code. This code can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine, such that instructions executable by the processor of the computer or other programmable data processing apparatus create means for implementing the functions / actions specified in the flowcharts and / or block diagrams.

[0038] The code may also be stored in a storage device that can instruct a computer, other programmable data processing apparatus or other device to operate in a particular manner, such that the instructions stored in the storage device produce an article of art including instructions that implement the functions / actions specified in the flowchart and / or block diagram.

[0039] The code may also be loaded onto a computer, other programmable data processing apparatus or other device to cause a series of operational steps to be performed on the computer, other programmable apparatus or other device to produce a computer-implemented process, such that the code executing on the computer or other programmable apparatus provides a process for implementing the functions / actions specified in the flowchart and / or block diagram.

[0040] The flowcharts and / or block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, systems, methods, and program products according to various embodiments. In this regard, each block in the flowcharts and / or block diagrams may represent a module, segment, or portion of code, which includes one or more executable instructions for implementing a particular logical function(s).

[0041] It should also be noted that in some alternative implementations, the functions marked in the boxes may not occur in the order indicated in the diagram. For example, two boxes shown consecutively may actually be executed substantially simultaneously, or these boxes may sometimes be executed in reverse order, depending on the functions involved. Other steps and methods that are functionally, logically, or effectively equivalent to one or more boxes or portions thereof in the diagram shown can be envisioned.

[0042] While various arrow and line types may be used in flowcharts and / or block diagrams, they are not to be construed as limiting the scope of the corresponding embodiments. In practice, some arrows or other connectors may be used to indicate only the logical flow of the depicted embodiment. For example, arrows may indicate waiting or monitoring periods of unspecified duration between enumerated steps of a depicted embodiment. It should also be noted that each box in the block diagrams and / or flowcharts, and combinations of boxes in the block diagrams and / or flowcharts, may be implemented by a system based on dedicated hardware, or a combination of dedicated hardware and code, that performs the specified function or action.

[0043] The description of each element in each figure can be referenced to the elements in the preceding figures. The same reference numerals refer to the same elements in all figures, including alternative embodiments of similar elements.

[0044] Generally, this disclosure describes systems, methods, and apparatuses for lateral walking link ranging of a positioning reference signal type. In some embodiments, computer code embedded in a computer-readable medium may be used to perform the methods. In some embodiments, the apparatus or system may include a computer-readable medium containing computer-readable code that, when executed by a processor, causes the apparatus or system to perform at least a portion of the solution described below.

[0045] While 3GPP positioning frameworks exist that support UE-assisted and UE-based positioning methods, support for efficient UE-to-UE distance determination is currently lacking, which is essential for supporting relative positioning applications. This disclosure proposes a ranging signal configuration for transmission of different positioning reference signal (“PRS”) types, providing high accuracy for determining range and relative orientation between UEs. In one embodiment, this disclosure describes a ranging signal configuration in a resource pool and dynamic indication of ranging parameters for side-link devices.

[0046] The proposed solution includes a resource pool configuration comprising configurations for one or more PRS types, a (pre-)configured bitmap for each PRS type in terms of logical-side link slots / symbols, a root sequence for PRS type 2, pulse durations for pulse sequences for PRS type 3, positioning report processing defined for each PRS type in terms of symbol / slot offsets, and / or positioning report processing defined for each positioning method in terms of symbol / slot offsets. PSFCH and / or PSSCH symbol and periodic configurations are defined for the PRS resource pool.

[0047] In one embodiment, the solution describes SCI signaling, which includes PRS type, cyclic shift value or identifier for PRS type 2, and / or multiple pulse transmissions in logical-side line link slots / mini-slots. In one embodiment, various multiplexing options describing the PSCCH and each PRS type are described. In one embodiment, adaptation of transmit power for CBR-based pulse transmissions is also disclosed.

[0048] Figure 1 A wireless communication system 100 for lateral link ranging of a positioning reference signal type according to embodiments of the present disclosure is described. In one embodiment, the wireless communication system 100 includes at least one remote unit 105, a radio access network (“RAN”) 120, and a mobile core network 140. The RAN 120 and the mobile core network 140 form a mobile communication network. The RAN 120 may consist of a basic unit 121 that the remote unit 105 communicates with using a wireless communication link 123. Although in Figure 1 The document depicts a specific number of remote units 105, basic units 121, wireless communication links 123, RAN 120, and mobile core network 140, but those skilled in the art will recognize that any number of remote units 105, basic units 121, wireless communication links 123, RAN 120, and mobile core network 140 may be included in the wireless communication system 100.

[0049] In one implementation, RAN 120 conforms to the 5G system specified in the 3rd Generation Partnership Project (“3GPP”) specifications. For example, RAN 120 could be a next-generation radio access network (“NG-RAN”) implementing a new radio (“NR”) radio access technology (“RAT”) and / or a long-term evolution (“LTE”) RAT. In another implementation example, RAN 120 could include a non-3GPP RAT (e.g., Or an IEEE 802.11 series compliant WLAN. In another implementation, RAN 120 conforms to the LTE system specified in the 3GPP specification. However, more generally, the wireless communication system 100 can implement other open or proprietary communication networks, such as Global Microwave Access Interoperability (“WiMAX”) or the IEEE 802.16 series standards, as well as other networks. This disclosure is not intended to limit itself to any implementation of a wireless communication system architecture or protocol.

[0050] In one embodiment, remote unit 105 may include computing devices such as desktop computers, laptop computers, personal digital assistants (“PDAs”), tablet computers, smartphones, smart TVs (e.g., internet-connected TVs), smart appliances (e.g., internet-connected appliances), set-top boxes, game consoles, security systems (including security cameras), in-vehicle computers, network devices (e.g., routers, switches, modems), etc. In some embodiments, remote unit 105 includes wearable devices such as smartwatches, fitness bands, optical head-mounted displays, etc. Furthermore, remote unit 105 may be referred to as UE, user unit, mobile device, mobile station, user, terminal, mobile terminal, fixed terminal, subscriber station, user terminal, wireless transceiver unit (“WTRU”), device, or other terms used in the art. In various embodiments, remote unit 105 includes a user identity and / or identification module (“SIM”) and a mobile device (“ME”) that provides mobile terminal functions (e.g., radio transmission, handover, voice encoding and decoding, error detection and correction, signaling and access to the SIM). In some embodiments, the remote unit 105 may include a terminal device (“TE”) and / or be embedded in an appliance or device (e.g., a computing device as described above).

[0051] Remote unit 105 can communicate directly with one or more basic units 121 in RAN 120 via uplink (“UL”) and downlink (“DL”) communication signals. Additionally, UL and DL communication signals can be carried via wireless communication link 123. Here, RAN 120 is an intermediate network providing access to mobile core network 140 for remote unit 105. As described in more detail below, the basic units(s) 121 can provide cells operating using a first frequency range and / or cells operating using a second frequency range.

[0052] In some embodiments, remote unit 105 communicates with application server 151 via a network connection to mobile core network 140. For example, application 107 in remote unit 105 (e.g., a web browser, media client, telephone, and / or Voice over Internet Protocol (“VoIP”) application) can trigger remote unit 105 to establish a Protocol Data Unit (“PDU”) session (or other data connection) with mobile core network 140 via RAN 120. Mobile core network 140 then uses the PDU session to relay services between remote unit 105 and application server 151 in packet data network 150. The PDU session represents a logical connection between remote unit 105 and user plane function (“UPF”) 141.

[0053] To establish a PDU session (or PDN connection), remote unit 105 must be registered with mobile core network 140 (also referred to as "attached to mobile core network" in the context of fourth-generation ("4G") systems). Note that remote unit 105 may establish one or more PDU sessions (or other data connections) with mobile core network 140. Thus, remote unit 105 may have at least one PDU session for communicating with packet data network 150. Remote unit 105 may establish additional PDU sessions for communicating with other data networks and / or other communication peers.

[0054] In the context of a 5G system (“5GS”), the term “PDU session” refers to a data connection that provides end-to-end (“E2E”) user plane (“UP”) connectivity between a remote unit 105 and a specific data network (“DN”) via UPF 141. A PDU session supports one or more Quality of Service (QoS) streams. In some embodiments, a one-to-one mapping may exist between QoS streams and QoS profiles, such that all packets belonging to a particular QoS stream have the same 5G QoS identifier (“5QI”).

[0055] In the context of 4G / LTE systems such as Evolved Packet System (“EPS”), a Packet Data Network (“PDN”) connection (also known as an EPS session) provides end-to-end (E2E) up connectivity between a remote unit and the PDN. The PDN connection process establishes an EPS bearer, for example, a tunnel between remote unit 105 and a packet gateway (“PGW”, not shown) in mobile core network 140. In some embodiments, a one-to-one mapping exists between EPS bearers and QoS profiles, such that all packets belonging to a particular EPS bearer have the same QoS class identifier (“QCI”).

[0056] Basic unit 121 may be distributed across a geographical area. In some embodiments, basic unit 121 may also be referred to as an access terminal, access point, base station, Node-B (“NB”), Evolved Node-B (abbreviated as enodeB or “eNB”, also known as Evolved Universal Terrestrial Radio Access Network (“E-UTRAN”) Node-B), 5G / NR Node-B (“gNB”), Home Node-B, Relay Node, RAN Node, or any other term used in the art. Basic unit 121 is typically part of a RAN such as RAN 120, which may include one or more controllers communicatively coupled to one or more corresponding basic units 121. These and other elements of the radio access network are not shown but are generally well known to those skilled in the art. Basic unit 121 is connected to mobile core network 140 via RAN 120.

[0057] Basic unit 121 can provide services to multiple remote units 105 within a service area (e.g., a cell or cell sector) via wireless communication link 123. Basic unit 121 can communicate directly with one or more of the remote units 105 via communication signals. Typically, basic unit 121 transmits DL communication signals to serve the remote units 105 in the time, frequency, and / or spatial domains. Furthermore, DL communication signals can be carried via wireless communication link 123. Wireless communication link 123 can be any suitable carrier in licensed or unlicensed radio spectrum. Wireless communication link 123 facilitates communication between one or more remote units 105 and / or one or more basic units 121. Note that during NR operation on unlicensed spectrum (referred to as "NR-U"), basic unit 121 and remote units 105 communicate via unlicensed (e.g., shared) radio spectrum.

[0058] In one embodiment, the mobile core network 140 is a 5GC or evolved packet core (“EPC”) that may be coupled to packet data networks 150, such as the Internet and private data networks, as well as other data networks. The remote unit 105 may have a subscription or other account with respect to the mobile core network 140. In various embodiments, each mobile core network 140 belongs to a single mobile network operator (“MNO”). This disclosure is not intended to limit implementation to any particular wireless communication system architecture or protocol.

[0059] Mobile core network 140 includes several network functions (“NFs”). As depicted, mobile core network 140 includes at least one UPF 141. Mobile core network 140 also includes multiple control plane (“CP”) functions, including but not limited to Access and Mobility Management Functions (“AMF”) 143, Session Management Functions (“SMF”) 145, Location Management Functions (“LMF”) 144, Unified Data Management Functions (“UDM”), and User Data Repository (“UDR”) serving RAN 120. Figure 1 The document describes a specific number and type of network functions, but those skilled in the art will recognize that any number and type of network functions may be included in the mobile core network 140.

[0060] In the 5G architecture, (multiple) UPF 141s are responsible for packet routing and forwarding, packet detection, QoS processing, and external PDU sessions for interconnecting the data network (DN). AMF 143 is responsible for NAS signaling termination, NAS encryption and integrity protection, registration management, connection management, mobility management, access authentication and authorization, and security context management. SMF 145 is responsible for session management (e.g., session establishment, modification, and release), remote unit (e.g., UE) IP address allocation and management, DL data notification, and UPF 141 service redirection configuration for appropriate service routing.

[0061] LMF 144 receives location measurements or estimates (e.g., via AMF 143) from RAN 120 and remote unit 105 and calculates the location of remote unit 105. UDM is responsible for generating authentication and key protocol (“AKA”) credentials, user identification processing, access authorization, and subscription management. UDR is a repository of subscriber information and can be used to provide services for many network functions. For example, UDR can store subscription data, policy-related data, subscriber-related data that can be exposed to third-party applications, and so on. In some embodiments, UDM and UDR coexist and are depicted as a combined entity “UDM / UDR” 149.

[0062] In various embodiments, the mobile core network 140 may further include a Policy Control Function (“PCF”) (which provides policy rules to the CP function), a Network Repository Function (“NRF”) (which provides network function (“NF”) service registration and discovery, enabling NFs to identify the appropriate services among themselves and communicate with each other via an application programming interface (“API”), a Network Open Function (“NEF”) (which is responsible for enabling customers and network partners to easily access network data and resources), an Authentication Server Function (“AUSF”), or other NFs defined for the 5GC. When present, the AUSF can act as an authentication server and / or authentication proxy, thereby allowing the AMF 143 to authenticate the remote unit 105. In some embodiments, the mobile core network 140 may include an Authentication, Authorization, and Accounting (“AAA”) server.

[0063] In various embodiments, the mobile core network 140 supports different types of mobile data connections and different types of network slices, where each mobile data connection utilizes a specific network slice. Here, a "network slice" refers to a portion of the mobile core network 140 optimized for a certain type of service or communication service. For example, one or more network slices may be optimized for enhanced mobile broadband ("eMBB") services. As another example, one or more network slices may be optimized for ultra-reliable low-latency communication ("URLLC") services. In other examples, network slices may be optimized for machine-type communication ("MTC") services, massive MTC ("mMTC") services, and Internet of Things ("IoT") services. In other examples, network slices may be deployed for specific application services, vertical services, specific use cases, etc.

[0064] Network slice instances can be identified by single network slice selection aid information (“S-NSSAI”), while the set of network slices authorized for use by remote unit 105 is identified by network slice selection aid information (“NSSAI”). Here, “NSSAI” refers to a vector value containing one or more S-NSSAI values. In some embodiments, various network slices may include individual instances of network functions, such as SMF 145 and UPF 141. In some embodiments, different network slices may share some common network functions, such as AMF 143. For illustrative purposes, Figure 1 Different network slices are not shown, but it is assumed that different network slices are supported.

[0065] As discussed in more detail below, remote unit 105 may be an initiating device that sends a positioning measurement configuration 125 to responding device 106. In some embodiments, the initiating device may be a base unit 121, such as a gNB. In one embodiment, the initiating device receives a positioning / measurement report 127 from responding device 106. In another embodiment, the initiating device sends a measurement configuration and / or other configuration and receives the positioning report 127 via a sidelink connection 115 between the initiating device and responding device 106. As used herein, the sidelink connection 115 allows remote units 105 to communicate directly with each other using sidelink (e.g., V2X communication) signals (e.g., device-to-device communication).

[0066] Although Figure 1 The components of the 5G RAN and 5G core network are described, but the described side-link ranging embodiments for the type of positioning reference signal are applicable to other types of communication networks and RATs, including IEEE 802.11 variants, Global System for Mobile Communications (“GSM”, such as 2G digital cellular networks), General Packet Radio Service (“GPRS”), General Mobile Telecommunications System (“UMTS”), LTE variants, CDMA 2000, Bluetooth, ZigBee, Sigfox, etc.

[0067] Furthermore, in the LTE variant of the EPC where the mobile core network 140 is, the described network functions can be replaced by appropriate EPC entities, such as the Mobility Management Entity (“MME”), Serving Gateway (“SGW”), PGW, Home Subscriber Server (“HSS”), etc. For example, AMF 143 can be mapped to the MME, SMF 145 can be mapped to the control plane portion of the PGW and / or the MME, UPF 141 can be mapped to the SGW and the user plane portion of the PGW, UDM / UDR 149 can be mapped to the HSS, and so on.

[0068] In the following description, the term "RAN node" is used for a base station, but it can be replaced by any other radio access node, such as a gNB, ng-eNB, eNB, base station ("BS"), access point ("AP"), etc. Furthermore, these operations are primarily described in the context of 5G NR. However, the proposed solution / method is equally applicable to other mobile communication systems supporting side-link ranging for positioning reference signal types.

[0069] Figure 2 An NR protocol stack 200 according to an embodiment of this disclosure is depicted. Although Figure 2The diagram illustrates UE 205, RAN node 210, and AMF 215 in a 5G core network (“5GC”), but these represent a group of remote units 105 interacting with basic unit 121 and mobile core network 140. As depicted, protocol stack 200 includes user plane protocol stack 201 and control plane protocol stack 203. User plane protocol stack 201 includes physical layer (“PHY”) 220, media access control (“MAC”) sublayer 225, radio link control (“RLC”) sublayer 230, packet data convergence protocol (“PDCP”) sublayer 235, and service data adaptation protocol (“SDAP”) layer 240. Control plane protocol stack 203 includes physical layer 220, MAC sublayer 225, RLC sublayer 230, and PDCP sublayer 235. Control plane protocol stack 203 also includes radio resource control (“RRC”) layer 245 and non-access stratum (“NAS”) layer 250.

[0070] The AS layer (also referred to as the “AS protocol stack”) of the user plane protocol stack 201 consists of at least the SDAP, PDCP, RLC, and MAC sublayers and the physical layer. The AS layer of the control plane protocol stack 203 consists of at least the RRC, PDCP, RLC, and MAC sublayers and the physical layer. Layer-2 (“L2”) is split into SDAP, PDCP, RLC, and MAC sublayers. Layer-3 (“L3”) includes the RRC sublayer 245 and NAS layer 250 of the control plane, and includes, for example, the Internet Protocol (“IP”) layer and / or PDU layer (not depicted) of the user plane. L1 and L2 are referred to as “lower layers”, while L3 and above (e.g., transport layer, application layer) are referred to as “higher layers” or “upper layers”.

[0071] Physical layer 220 provides a transport channel to MAC sublayer 225. As described herein, physical layer 220 may use energy detection thresholds to perform unobstructed channel assessment and / or listen-before-talk (“CCA / LBT”) procedures. In some embodiments, physical layer 220 may send a notification of UL listen-before-talk (“LBT”) failure to the MAC entity at MAC sublayer 225. MAC sublayer 225 provides a logical channel to RLC sublayer 230. RLC sublayer 230 provides an RLC channel to PDCP sublayer 235. PDCP sublayer 235 provides radio bearers to SDAP sublayer 240 and / or RRC layer 245. SDAP sublayer 240 provides QoS flows to the core network (e.g., 5GC). RRC layer 245 provides carrier aggregation and / or dual connectivity addition, modification, and release. RRC layer 245 also manages the establishment, configuration, maintenance, and release of signaling radio bearers (“SRB”) and data radio bearers (“DRB”).

[0072] NAS layer 250 is located between UE 205 and 5GC 215. NAS messages are transmitted transparently through the RAN. NAS layer 250 is used to manage the establishment of communication sessions and maintain continuous communication with UE 205 when UE 205 moves between different cells in the RAN. In contrast, AS layer is located between UE 205 and the RAN (e.g., RAN node 210) and carries information through the radio portion of the network.

[0073] As background, for 3GPP specification release 17 (“Rel-17”), the different positioning requirements are particularly stringent in terms of accuracy, latency, and reliability. Table 1 shows the positioning performance requirements for different scenarios in Industrial IoT (“IIoT”) or indoor factory settings.

[0074]

[0075] Table 1: IIoT Positioning Performance Requirements

[0076] Table 2 lists some of the UE positioning technologies supported in Rel-16. Individual positioning technologies indicated in Table 2 can currently be configured and implemented based on LMF and / or UE capability requirements. Note that Table 2 includes TBS positioning based on PRS signals, but only supports Observed Time Difference of Arrival (“OTDOA”) based on LTE signals. The E-CID includes the cell-ID used for the NR method. The Land Beacon System (“TBS”) method refers to TBS positioning based on Metropolitan Area Beacon System (“MBS”) signals.

[0077]

[0078] Table 2: Supported Rel-16 UE positioning methods

[0079] The transmission of PRS enables the UE to perform UE location-related measurements, thereby enabling the calculation of the UE's location estimate, and is configured according to the Transmitter Receiver Point ("TRP"), where the TRP can transmit one or more beams.

[0080] Figure 3 An overview of an embodiment of an absolute and relative positioning scenario as defined in the architecture (Phase 1) specification is provided, using the following three different coordinate systems: absolute positioning, fixed coordinate system 302; relative positioning, variable and moving coordinate system 304; and relative positioning, variable coordinate system 306.

[0081] In one embodiment, system 100 may support the following RAT-dependent positioning technologies:

[0082] DL-TDoA: The downlink time difference of arrival (“DL-TDoA”) positioning method utilizes the DL RS time difference (“RSTD”) of downlink signals received at the UE (e.g., remote unit 105) from multiple TPs (and optionally the DL PRS RS received power (“RSRP”) of the DL PRS RS received quality (“RSRQ”). The UE uses auxiliary data received from the positioning server to measure the DL RSTD (and optionally the DL PRS RSRP) of the received signal, and the resulting measurement, along with other configuration information, is used to position the UE relative to adjacent transmission points (“TPs”).

[0083] DL-AoD: The DL Departure Angle (“AoD”) positioning method utilizes the measured DL PRS RSRP of downlink signals received at the UE from multiple TPs. The UE uses auxiliary data received from the positioning server to measure the DL PRS RSRP of the received signals, and the resulting measurement, along with other configuration information, is used to position the UE relative to adjacent TPs.

[0084] Multi-RTT: The Multi-Round-Time (“Multi-RTT”) positioning method utilizes the UE receive-transmit (“Rx-Tx”) measurements taken by the UE and the DL PRS RSRP of downlink signals received from multiple TRPs, as well as gNB Rx-Tx measurements (e.g., measured by the RAN node), and the UL SRS-RSRP of uplink signals transmitted from the UE at multiple TRPs, such as... Figure 4 As shown in the image.

[0085] like Figure 5 As shown, the UE uses auxiliary data received from the positioning server to measure UE Rx-Tx measurements (and optionally DL PRS-RSRP of the received signal), and the TRP uses auxiliary data received from the positioning server to measure gNBRx-Tx measurements (and optionally UL SRS-RSRP of the received signal). The measurements are used to determine the round-trip time (“RTT”) at the positioning server, which is used to estimate the UE’s location. In one embodiment, Multi-RTT is supported only for UE-assisted / NG-RAN-assisted positioning technologies, as indicated in Table 2.

[0086] E-CID / NR E-CID: Enhanced Cell ID (“CID”) positioning method, which uses knowledge of the ng-eNB, gNB, and cell served by the UE and estimates the UE's location based on LTE signals. Information about the serving ng-eNB, gNB, and cell can be obtained through paging, registration, or other methods. NR Enhanced Cell ID (“NR E-CID”) positioning refers to techniques that use additional UE measurements and / or NR radio resources and other measurements to improve UE location estimation using NR signals.

[0087] Although NR E-CID positioning can utilize some of the same measurements as the measurement control system in the RRC protocol, additional measurements are generally not expected from the UE for the sole purpose of positioning; for example, the positioning process does not supply measurement configuration or measurement control messages, and the UE reports that it has available measurements rather than being asked to take additional measurement actions.

[0088] UL-TDOA: The UL TDOA positioning method utilizes the UL TDOA (and optional UL SRS-RSRP) at multiple receiving points (“RPs”) of the uplink signal transmitted from the UE. The RPs use auxiliary data received from the positioning server to measure the UL TDOA (and optional UL SRS-RSRP) of the received signal, and the resulting measurements, along with other configuration information, are used to estimate the UE's location.

[0089] UL-AoA: The UL Angle of Arrival (“AoA”) positioning method utilizes the azimuth and zenith angle of arrival measured at multiple RPs on the uplink signal transmitted from the UE. The RP uses auxiliary data received from the positioning server to measure the A-AoA and Z-AoA of the received signal, and the resulting measurements, along with other configuration information, are used to estimate the UE's position.

[0090] Figure 6 A system 600 for NR beam-based positioning is described. According to Rel-16, PRS can be transmitted by different base stations (serving and neighboring) using narrow beams within frequency range #1 (“FR1”, e.g., frequencies from 410MHz to 7125MHz) and frequency range #2 (“FR2”, e.g., frequencies from 24.25GHz to 52.6GHz), which is relatively different from LTE where PRS is transmitted across the entire cell.

[0091] like Figure 6As shown, UE 605 can receive PRS from a first gNB (“gNB3”) 610, which serves as a gNB, and can also receive PRS from a neighboring second gNB (“gNB1”) 615 and a neighboring third gNB (“gNB2”) 620. Here, the PRS can be locally associated with a set of PRS resources under a resource set ID of the base station (e.g., TRP). In the depicted embodiment, each gNB 610, 615, 620 is configured with a first resource set ID 625 and a second resource set ID 630. As depicted, UE 605 receives PRS on the transmission beam; here, it receives PRS from gNB3 610 on a set of PRS resources 635 from the second resource set ID 630, receives PRS from gNB1 615 on a set of PRS resources 635 from the second resource set ID 630, and receives PRS from gNB2 620 on a set of PRS resources 635 from the first resource set ID 625.

[0092] Similarly, UE positioning measurements, such as Reference Signal Time Difference (“RSTD”) and PRS RSRP measurements, are performed between beams differently than in LTE. Additionally, there are supplementary UL positioning methods available for the network to use to calculate the location of the target UE. Table 3 lists the required RS-to-measurement mappings for each of the RAT-dependent positioning techniques supported at the UE, and Table 4 lists the required RS-to-measurement mappings for each of the RAT-dependent positioning techniques supported at the gNB.

[0093]

[0094] Table 3: UE Measurement Results for Positioning Technology Relying on RAT

[0095]

[0096] Table 4: gNB measurement results for positioning technology relying on RAT

[0097] According to TS38.215, UE measurements have been defined for use with DL-based positioning technologies (see Sub-clause 2.4). For a conceptual overview of the current implementation in Rel-16, DL-TDOA auxiliary data configuration (see...) Figure 7A ) and measurement report information (see Figure 7B (This is provided as an illustrative example.) Figure 7A The IE NR-DL-TDOA-ProvideAssistanceData shown is used by the location server to provide assistance data for UE-assisted and UE-based NR downlink TDOA. It can also be used to provide NR DL TDOA to pinpoint specific error causes.

[0098] Figure 7B The IE NR-DL-TDOA-SignalMeasurementInformation shown is used by the target device to provide NR-DL TDOA measurements to the location server. Measurements are provided as a list of TRPs, and the first TRP in the list is used as the reference TRP when reporting RSTD measurement results, in case of any discrepancies. The first TRP in the list may or may not be the reference TRP indicated in NR-DL-PRS-AssistanceData. Furthermore, the target device selects a reference resource for each TRP and compiles the measurements for each TRP based on the selected reference resource.

[0099] Table 5 shows the different DL measurements required for supported RAT-dependent positioning technologies, including DL PRS-RSRP, DL RSTD, and UE Rx-Tx time difference. For example, the following measurement configurations are specified in TS 38.215:

[0100] i. Each cell pair can perform 4 pairs of DL RSTD measurements. Each measurement is performed between different pairs of DL PRS resources / resource sets with a single reference timing.

[0101] ii. Up to 8 DL PRS RSRP measurements can be performed on different DL PRS resources from the same cell.

[0102]

[0103]

[0104] Table 1: DL Measurements Required for DL-Based Positioning Methods. In one embodiment, this disclosure includes signaling and configurations for different PRS types, such as PRS Type 1 – pseudo-random sequences (e.g., gold-based sequences), PRS Type 2 – Zadoff-chu sequences (e.g., generalized chirped sequences), and PRS Type 3 – pulse-based sequences. In one embodiment, the subject matter disclosed herein describes PRS type signaling configurations considering modes 1 and 2, physical-side link control channel (“PSCCH”) and PRS multiplexing, and transmission (“Tx”) power level adaptation based on channel busy ratio (“CBR”) / cognitive radio (“CR”).

[0105] It should be noted that, as used in this document, a controller refers to a device that controls a ranging session and defines ranging parameters by sending ranging control information; a controller refers to a device that utilizes ranging parameters received from a controller by decoding ranging control messages; an initiating device sends a first ranging message exchange after the transmission / reception of a ranging control message; and a responding device responds to the initial ranging message received from the initiating device.

[0106] Therefore, in one embodiment, the solution described herein provides triggered ranging requests to implement or instruct lower layers to perform ranging based on a specific ranging service level. The ranging service level framework can be designed to satisfy ranging location service requests for ranging accuracy, orientation accuracy, and latency. In one embodiment, the proposed solution describes a flexible setup and shutdown process for unicast, multicast, and broadcast ranging sessions. In one embodiment, the ranging discovery method implements dynamic group management for ranging based on ranging discovery messages.

[0107] According to the first embodiment, one or more PRS types can be (pre)configured by resource pool. In one example, at least one supported PRS type can be indicated to the gNB / LMF as part of the UE capability information. In another example, the PRS type can be signaled by the LMF using LTE Positioning Protocol (“LPP”) signaling from at least one supported PRS type.

[0108] In one implementation, when one or more PRS types are configured / indicated / provided in a resource pool, a bitmap in the resource pool is (pre-)configured by PRS type in terms of logical-side line link time slots so that the UE can send and receive each PRS type according to the time-domain bitmap configuration.

[0109] In another implementation, resources of each PRS type can be (pre) configured periodically for N time slots within the time slots associated with the resource pool. In one example, the periodicity for each PRS type can be the same or different. In some examples, each PRS type resource can be (pre) configured with time slot offsets and / or symbol offsets (e.g., periodic offsets can be configured jointly).

[0110] In another implementation, if the serving cell timing reference is in use, the slot index and / or periodicity of each PRS type are relative to the slot #0 of the radio frame corresponding to the system frame number (“SFN”)0 or direct frame number (“DFN”)0 of the serving cell.

[0111] In another implementation, one of the above configurations for the PRS type can be implemented in the sidelink (“SL”) bandwidth portion (“BWP”) or the SL carrier, rather than in the resource pool.

[0112] In one embodiment, the number of repetitions for each PRS type can be (pre)configured in a resource pool; otherwise, the number of repetitions is a function of the priority of the CBR and / or the location service, where the priority can be a value (pre)configured by the LMF based on the latency and / or accuracy of the location service. In some examples, different repetitions for each PRS type can be associated with the same or different transmit or receive beams. The maximum number of reserved resources for PRS transmissions can be (pre)configured by resource pool, and in one example, the maximum number of reserved resources can be (pre)configured by PRS type in the resource pool.

[0113] In one embodiment, downlink control information (“DCI”) and / or sidelink control information (“SCI”) indicate the PRS type used to transmit ranging signals using (multiple) bits. The associated configuration is described below:

[0114] a. PRS Type 2: One or more of the root sequence index, preamble sequence length, and maximum cyclic shift allowed to generate the preamble in the resource pool for PRS Type 2 can be (pre)configured in the resource pool and / or configured using RRC signaling. The maximum number of cyclic shifts allowed for multiplexing in the same time / frequency resources can be (pre)configured in the resource pool and / or configured using RRC signaling. Cyclic shift signals can be issued using DCI signaling that takes into account mode 1 resource allocation. Before ranging is performed, the Tx UE can send the cyclic shift value in the SCI to the Rx UE, while the time and frequency domain allocation indicates the PRS Type 2 resources in the DCI and SCI. In one implementation, the cyclic shift can be selected based on the L1 source ID of the Tx UE for unicast and / or the L1 source ID of the Tx UE and the member ID of the Rx UE for multicast. In another implementation, the cyclic shift number used for PRS type 2 transmission can be multiplexed within a single PRS instance, or configured (pre-)by a resource pool for ranging time slots to different ranging pairs.

[0115] b. PRS Type 3: The pulse duration is (pre)configured by resource pool and / or RRC signaling. The time-domain resources used for pulse transmission and / or the number of pulse transmissions per time slot / mini-time slot are configured by resource pool. The pulse repetition frequency in the ranging time slot can be (pre)configured in the resource pool.

[0116] In one embodiment, a shared resource pool configuration across gNBs and / or anchors has known locations for ranging methods that require more than one anchor node (e.g., TDoA).

[0117] In one embodiment, an anchor node with a known location can broadcast a PRS-type signal with a fixed period for UE ranging measurements. In one implementation, the LMF uses LPP signaling to provide the source ID and / or PRS time / frequency, periodicity, and / or offset of the anchor node as part of auxiliary information to the initiating device. In another implementation, the source ID and / or PRS time / frequency, periodicity, and / or offset of the anchor node are (pre)configured in a resource pool.

[0118] In one embodiment, as used herein, the quality factor (“FoM”) refers to the confidence level of the PHY estimate of the arrival of a reference marker, which is a pulse sent by the initiator to the responder. In another implementation, the confidence level is used to estimate relative positioning using positioning methods such as TDoA, AoD, AoA, etc. In one embodiment, a one-bit confidence interval request is included in the SCI sent by the initiator for unicast / multicast and broadcast PRS transmissions, and the responder reports this confidence interval along with the positioning report.

[0119] a. In one implementation, the confidence interval is (pre) configured in the resource pool, or the maximum delay for transmission of the confidence level is indicated using RRC signaling;

[0120] b. In another implementation, the confidence interval is (pre) configured in the resources, or the slot offset or symbol offset between the request for the confidence level and the actual transmission of the confidence level is indicated using RRC signaling;

[0121] c. In another implementation, the confidence level can be sent using the physical side link feedback channel (“PSFCH”), any L1 control signaling, or using MAC CE. In one example, the confidence level is 0-2 bits.

[0122] In some embodiments, the PRS configuration defined for the resource pool also applies to the sidelink BWP and / or sidelink carrier. In this case, the RRC configuration can be used to signal the PRS configuration.

[0123] In some embodiments, since PRS transmission requires large bandwidth to achieve high accuracy, the location resource pool can overlap across one or more data resource pools in the BWP.

[0124] In some embodiments, where the sidelink PRS overlaps with the Physical Sidelink Shared Channel (“PSSCH”) / PSFCH in the same sidelink time slot, in one embodiment, the Tx UE can prioritize the PRS or PSSCH / PSFCH based on the defined priority values ​​of the PRS and PSSCH / PSFCH. In another example, the PSSCH / PSFCH always takes precedence. In another implementation, where the sidelink PRS overlaps with the Physical Uplink Shared Channel (“PUSCH”) / Physical Uplink Control Channel (“PUCCH”) in the same time slot, the Tx UE can prioritize the sidelink PRS when the priority of the PUSCH is less than sl-PriorityThreshold or sl-PriorityThreshold-UL-URLLC; otherwise, the UL PUSCH / PUCCH always takes precedence.

[0125] In another implementation, when the sidelink PRS and sounding reference signal (“SRS”) configured for positioning overlap in the same time slot, the Tx UE may prioritize the sidelink PRS if the priority of the SRS is less than sl-PriorityThreshold or sl-PriorityThreshold-UL-URLLC; otherwise, the SRS always takes precedence. In one embodiment, the priority of the SRS is calculated based on the priority of the associated positioning request / session.

[0126] Regarding PRS type configuration, it is possible that UE1 (e.g., a Tx UE) is configured to send PRS type 1 to UE2 (e.g., an Rx UE), but UE2, as a Tx UE, can be configured to send a PRS type that is the same as or different from the transmitter's PRS type. In this case, the following two possibilities exist:

[0127] a. The same configuration for the PRS type used in the UE can be used for both transmission and reception;

[0128] b. Two separate configurations for the PRS type of the UE - one for receiving and the other for transmitting (e.g., to the same or different UEs).

[0129] According to the second embodiment, for PRS type 1, the PSCCH is transmitted in symbols 1-2, and the PRS using comb mode is transmitted in the same time slot. In one embodiment, the PSCCH carries information corresponding to the PRS resource, including comb mode ID, frequency offset, time slot offset, symbol offset, number of PRS symbols in the time slot, repetition factor, and / or one or more of the silencing mode. In one example, the PSCCH and PRS are multiplexed in the time and frequency domains, such as... Figure 8 As shown. Since the second PRS resource used for the second ranging pair can be multiplexed using different frequency offsets in the same time slot and transmitted over the entire signal bandwidth, the corresponding PSCCH is transmitted in the same time slot but in adjacent sub-channels. In one implementation, the two ranging signals can be transmitted in the same time slot using different frequency offsets and / or comb patterns, and their corresponding PSCCHs are transmitted in the start resource block (“RB”) of each sub-channel configured by resource pool.

[0130] a. In one implementation, the PRS symbol begins with symbol 2 and is therefore frequency-division multiplexed (“FDMed”) with the PSCCH position, and the PRS position is punctured for PSCCH transmission (in the case of PSCCH overlapping with PRS).

[0131] b. In another implementation, the PRS symbol begins immediately after the PSCCH symbol, and there is no FDM between the PSCCH and the PRS.

[0132] c. In another implementation, the PRS symbol begins after the PSCCH symbol, and there is no FDM between the PSCCH and the PRS. The second SCI (if present) is FDMed with the PSCCH and transmitted in symbols 2 and 3, with a demodulation reference signal (“DMRS”) loaded before transmission for decoding the second SCI.

[0133] In one implementation, the absence of a (pre)configured second SCI in the resource pool means that the first SCI conveys location-related information. In another implementation, one of the reserved values ​​in the first SCI is used to signal different second SCI formats for conveying ranging-related information to define the second SCI format. In yet another implementation, several first SCI formats and / or second SCI formats for conveying ranging-related information are (pre)configured in the resource pool.

[0134] In one embodiment, the PRS positioning method uses a bitmap in the SCI to signal multiple report types based on the indicated report type, and each PRS transmission in a time slot can be associated with one or more combinations of report types such as Received Signal Strength Indicator (“RSSI”), TDOA, etc. In one embodiment, each PRS repetition can be associated with the same positioning method / report type, different positioning methods / report types, or combinations of positioning methods / report types. Because the processing time of each of these positioning methods differs, the time slot / symbol offset of each of these positioning report types can be (pre)configured by resource pool, and for the case of requesting multiple positioning reports (e.g., corresponding to different positioning methods), each of these positioning reports is sent separately according to the time slot / symbol offset associated with the positioning report type. In one implementation, positioning reports are sent using PSFCH. In another implementation, positioning reports are sent using MAC CE.

[0135] In one embodiment, for PRS type 2, the PRS is transmitted using a Zadoff-chu sequence occupying a comb pattern (e.g., as for PRS type 1) or a contiguous physical resource block (“PRB”), and because multiple Zadoff-chu sequences corresponding to different ranging pairs can be transmitted using different cyclic shifts and occupying the same time / frequency resources. In one implementation, a PSCCH corresponding to each ranging is transmitted in the starting RB of each subchannel configured by resource pool. Figure 9 The first option (left) in the middle).

[0136] In another implementation, the PSCCH symbol and PRB number for each PSCCH are defined for each resource pool, such as... Figure 9 As shown ( Figure 9 The second option (right) can be sent from the starting RB of the resource pool, where each PSCCH resource is FDMed and carries information associated with its ranging pair, and the remaining frequency resources are used for the transmission of PRS or the second SCI, which is FDMed with the PSCCH resources. Compared to the first option, in one embodiment, the second option can provide a continuous PRB mapping for PRS type 2 signals. Figure 9 In this context, although ranging pair #0 and ranging pair #1 use different time / frequency resources, these two ranging pairs can use the same time / frequency resources but use different cyclic shifts.

[0137] In one embodiment, in Mode 2 resource selection, the UE performs sensing to find candidate time / frequency resources and / or cyclic shifts for PRS transmission. In one implementation, the candidate resource set contains only candidate resources for PRS transmission based on an RSRP threshold, and the UE autonomously selects a cyclic shift from a configured cyclic shift. In another implementation, the UE reports the cyclic shift for each candidate resource to be reported in the candidate resource set, while the MAC can randomly select one of the candidate resources and its corresponding cyclic shift.

[0138] In one implementation, the candidate resource exclusion process compares the maximum cyclic shift that can be used in the same time / frequency resource with the cyclic shift used in the same time / frequency resource due to sensing results. If the cyclic shift is greater than the maximum allowed number, those time / frequency resources are excluded from the candidate resource selection.

[0139] In one implementation, the Tx UE can use the same cyclic shift for transmitting PRS across all reserved resources. In another implementation, the Tx UE can change the cyclic shift and signal this to the Rx UE in the SCI when transmitting in reserved resources.

[0140] During resource reassessment, the Tx UE monitors the SCI up to m-T3, for example, as described in TS38.214 / 38.331, to check for any preemption indications from neighboring UEs. In the case of PRS transmission, during resource reassessment, the Tx UE monitors the cyclic shift in the SCI as well as the time / frequency resources, and even if there is any overlap in time / frequency resources, the Tx UE can use the same time / frequency resources for PRS transmission, but with different cyclic shift values. However, during reassessment, if the Tx UE determines that the allowed cyclic shift for multiplexing in the same time / frequency resources has been exceeded, the Tx UE will not transmit in the pre-selected resources and can reselect another resource from the candidate resource set that is set to trigger additional resource (re)selection for PRS transmission.

[0141] In one embodiment, for PRS type-3, the PRS is transmitted using a pulse-based sequence spread across the entire bandwidth of the resource pool. To utilize the entire bandwidth of the resource pool, the pulse length / duration of PRS type-3 in the time domain needs to be reconfigured based on the resource pool bandwidth. In one implementation, the pulse duration is explicitly signaled via the RRC of each resource pool. In another implementation, the pulse duration is implicitly based on the resource pool bandwidth / SL BWP bandwidth or the sidelink carrier bandwidth. Multiple pulse sequences are transmitted in time slots / mini-time slots, where each pulse can be associated with a different ranging pair, and each SCI bearer associates each pulse offset of the pulse transmission with the pulse time offset of the different ranging pair. The PSCCH and pulse sequences are transmitted in a time-division multiplexed (“TDMed”) manner, and there is no FDM (Functional Distributed ... Figure 10 (Left side).

[0142] In another implementation, such as Figure 10 As shown on the right, there can be N PSCCH / PSSCH symbols defined for each resource pool for the transmission of the first SCI and the second SCI, which can be FDMed, and each of the first SCIs is transmitted at the start RB of the subchannel.

[0143] In one implementation, the PSCCH symbol and PRB number for each PSCCH are defined for each resource pool, which can be sent from the starting RB of the resource pool, such as... Figure 10 As shown, each of the PSCCH resources is FDMed and carries information associated with its ranging pair, wherein the remaining frequency resources are used for the transmission of the second SCI, and the second SCI is FDMed with the PSCCH resources.

[0144] In another implementation, there can be N pulse repetitions for the same ranging pair, which can be indicated in the SCI. In one embodiment, the positioning report includes the timestamp of the first pulse, followed by the relative timestamp difference with the first timestamp.

[0145] In another implementation, pulses can be transmitted during the CP duration of the PSSCH, and the pulse duration and the number of pulses that can be transmitted during the CP duration are (pre)configured by a resource pool. In one embodiment, the SCI indicates the presence of ranging pulses during the CP duration of the PSSCH. In one implementation, the resource pool configures PSSCH symbols in specified time slots that can be used to transmit ranging pulses during the CP duration. In another implementation, the SCI indicates the PSSCH symbol number carrying the ranging pulse during the CP duration. In another implementation, when the second SCI carries ranging-related information, ranging pulses are not transmitted in the PSSCH symbol carrying the second SCI. In one implementation, the pulse bandwidth is limited to the PSSCH bandwidth. In one implementation, the pulse bandwidth is configured independently in the SCI compared to the PSSCH bandwidth.

[0146] According to Embodiment 3, transmitting a location report in the PRS resource pool includes configurations for transmitting / receiving PSFCH and / or PSSCH, wherein several allocation symbols and periodicity of PSFCH and / or PSSCH symbols are (pre-)configured per resource pool along with PRS symbols (described in the first embodiment), specifically for transmitting ranging reports. In one implementation, when the MAC CE is used to transmit the ranging report, the FDMed PSCCH / PSSCH in those allocated symbols uses the MAC CE to carry the ranging report, and Hybrid Automatic Repeat Request (“HARQ”) feedback is not enabled during the transmission of the MAC CE. In one embodiment, there may be a maximum delay configured for transmitting the MAC CE carrying the ranging report to the initiating UE.

[0147] According to Example 4, the transmission power of PRS Type 3 can be adjusted based on CBR / channel occupancy ratio. In one example, the transmission power of the pulse sequence is reduced when the channel is busy and increased if the channel is idle. In another example, the transmission power of the pulse sequence is configured as a function of CBR, and multiple transmission power values ​​can be defined for multiple CBR values ​​in the resource pool. In yet another example, the transmission power of the pulse sequence can be based on whether the ranging pair (or the initiating device) is within or outside the network coverage area (e.g., lower transmission power outside the coverage area compared to within coverage area; different maximum transmission power limits within or outside the coverage area, etc.). In yet another implementation, the maximum transmission power limits differ for licensed or unlicensed bearers.

[0148] Figure 11User equipment device 1100, which can be used for lateral link ranging for a positioning reference signal type, is depicted according to embodiments of the present disclosure. In various embodiments, user equipment device 1100 is used to implement one or more of the solutions described above. User equipment device 1100 may be an embodiment of the remote unit 105 and / or UE 205 described above. Furthermore, user equipment device 1100 may include processor 1105, memory 1110, input device 1115, output device 1120, and transceiver 1125.

[0149] In some embodiments, input device 1115 and output device 1120 are combined into a single device, such as a touchscreen. In some embodiments, user equipment device 1100 may not include any input device 1115 and / or output device 1120. In various embodiments, user equipment device 1100 may include one or more of the following: processor 1105, memory 1110, and transceiver 1125, and may not include input device 1115 and / or output device 1120.

[0150] As depicted, transceiver 1125 includes at least one transmitter 1130 and at least one receiver 1135. In some embodiments, transceiver 1125 communicates with one or more cells (or radio coverage areas) supported by one or more basic units 121. In various embodiments, transceiver 1125 may operate on unlicensed spectrum. Furthermore, transceiver 1125 may include multiple UE panels supporting one or more beams. Additionally, transceiver 1125 may support at least one network interface 1140 and / or application interface 1145. The application interface(s) 1145 may support one or more APIs. Network interface 1140 may support 3GPP reference points such as Uu, N1, PC5, etc. Other network interfaces 1140 may be supported, as will be understood by those skilled in the art.

[0151] In one embodiment, processor 1105 may include any known controller capable of executing computer-readable instructions and / or performing logical operations. For example, processor 1105 may be a microcontroller, microprocessor, central processing unit (“CPU”), graphics processing unit (“GPU”), auxiliary processing unit, field-programmable gate array (“FPGA”), or similar programmable controller. In some embodiments, processor 1105 executes instructions stored in memory 1110 to perform the methods and routines described herein. Processor 1105 is communicatively coupled to memory 1110, input device 1115, output device 1120, and transceiver 1125.

[0152] In various embodiments, processor 1105 controls user equipment device 1100 to implement the UE behavior described above. In some embodiments, processor 1105 may include an application processor (also referred to as a "main processor") that manages application domain and operating system ("OS") functions and a baseband processor (also referred to as a "baseband radio processor") that manages radio functions.

[0153] In one embodiment, memory 1110 is a computer-readable storage medium. In some embodiments, memory 1110 includes volatile computer storage media. For example, memory 1110 may include RAM, including dynamic RAM (“DRAM”), synchronous dynamic RAM (“SDRAM”), and / or static RAM (“SRAM”). In some embodiments, memory 1110 includes non-volatile computer storage media. For example, memory 1110 may include a hard disk drive, flash memory, or any other suitable non-volatile computer storage device. In some embodiments, memory 1110 includes both volatile and non-volatile computer storage media.

[0154] In some embodiments, memory 1110 stores data related to lateral walking link ranging for a positioning reference signal type. For example, memory 1110 may store various parameters, panel / beam configurations, resource assignments, strategies, etc., as described above. In some embodiments, memory 1110 also stores program code and related data, such as an operating system or other controller algorithms operating on device 1100.

[0155] In one embodiment, input device 1115 may include any known computer input device, including a touch panel, button, keyboard, stylus, microphone, etc. In some embodiments, input device 1115 may be integrated with output device 1120, for example, as a touchscreen or similar touch-sensitive display. In some embodiments, input device 1115 includes a touchscreen, allowing text to be entered using a virtual keyboard displayed on the touchscreen and / or by handwriting on the touchscreen. In some embodiments, input device 1115 includes two or more different devices, such as a keyboard and a touch panel.

[0156] In one embodiment, output device 1120 is designed to output visual, auditory, and / or tactile signals. In some embodiments, output device 1120 includes an electronically controllable display or display device capable of outputting visual data to a user. For example, output device 1120 may include, but is not limited to, a liquid crystal display (“LCD”), a light-emitting diode (“LED”) display, an organic LED (“OLED”) display, a projector, or similar display devices capable of outputting images, text, etc., to a user. As another non-limiting example, output device 1120 may include a wearable display, such as a smartwatch, smart glasses, a head-up display, etc., that is separate from but communicatively coupled to the rest of user equipment device 1100. Furthermore, output device 1120 may be a component of a smartphone, personal digital assistant, television, desktop computer, laptop computer, personal computer, vehicle dashboard, etc.

[0157] In some embodiments, output device 1120 includes one or more speakers for generating sound. For example, output device 1120 may generate an audible alarm or notification (e.g., a beep or ringtone). In some embodiments, output device 1120 includes one or more haptic devices for generating vibration, motion, or other haptic feedback. In some embodiments, all or part of output device 1120 may be integrated with input device 1115. For example, input device 1115 and output device 1120 may form a touchscreen or similar touch-sensitive display. In other embodiments, output device 1120 may be located near input device 1115.

[0158] Transceiver 1125 communicates with one or more network functions of a mobile communication network via one or more access networks. Transceiver 1125 operates under the control of processor 1105 to send and receive messages, data, and other signals. For example, processor 1105 may selectively activate transceiver 1125 (or portions thereof) from time to time to send and receive messages.

[0159] Transceiver 1125 includes at least a transmitter 1130 and at least one receiver 1135. One or more transmitters 1130 can be used to provide UL communication signals to base unit 121, such as the UL transmissions described herein. Similarly, one or more receivers 1135 can be used to receive DL communication signals from base unit 121, as described herein. Although only one transmitter 1130 and one receiver 1135 are shown, user equipment device 1100 can have any suitable number of transmitters 1130 and receivers 1135. Furthermore, transmitters 1130 and receivers 1135 can be of any suitable type. In one embodiment, transceiver 1125 includes a first transmitter / receiver pair for communicating with a mobile communication network via licensed radio spectrum and a second transmitter / receiver pair for communicating with a mobile communication network via unlicensed radio spectrum.

[0160] In some embodiments, a first transmitter / receiver pair for communicating with a mobile communication network via licensed radio spectrum and a second transmitter / receiver pair for communicating with a mobile communication network via unlicensed radio spectrum may be combined into a single transceiver unit, such as a single chip performing functions for use with both licensed and unlicensed radio spectrum. In some embodiments, the first transmitter / receiver pair and the second transmitter / receiver pair may share one or more hardware components. For example, certain transceivers 1125, transmitters 1130, and receivers 1135 may be implemented as physically separate components that access shared hardware and / or software resources, such as, for example, network interface 1140.

[0161] In various embodiments, one or more transmitters 1130 and / or one or more receivers 1135 may be implemented and / or integrated into a single hardware component, such as a multi-transceiver chip, a system-on-a-chip, an application-specific integrated circuit (“ASIC”), or other types of hardware components. In some embodiments, one or more transmitters 1130 and / or one or more receivers 1135 may be implemented and / or integrated into a multi-chip module. In some embodiments, other components, such as network interface 1140 or other hardware components / circuits, may be integrated with any number of transmitters 1130 and / or receivers 1135 into a single chip. In such embodiments, transmitters 1130 and receivers 1135 may be logically configured as a transceiver 1125 using a plurality of common control signals, or as modular transmitters 1130 and receivers 1135 implemented in the same hardware chip or in a multi-chip module.

[0162] In one embodiment, transceiver 1125 receives a PRS configuration for transmitting a Positioning Reference Signal (“PRS”) of at least one PRS type to at least one second network device, a resource pool configuration for transmitting the PRS associated with relative positioning measurements, and a multiplexing configuration for multiplexing the Physical Side Link Control Channel (“PSCCH”) with the PRS. In one embodiment, processor 1105 multiplexes the PSCCH with the PRS according to the multiplexing configuration. In one embodiment, transceiver 1125 transmits the multiplexed PSCCH and PRS to at least one second device according to the PRS configuration and the resource pool configuration.

[0163] In one embodiment, the resource pool configuration includes at least one PRS type, each of the at least one PRS type being associated with one or more of pseudo-random sequence transmission, Zadoff-chu sequence transmission, and pulse-based sequence transmission.

[0164] In one embodiment, the PRS type includes PRS type 1, and multiplexing the PSCCH with the PRS includes: frequency-division multiplexing the PRS and PSCCH positions by starting the PRS symbol at the second symbol of the resource element, wherein the PRS position is punctured for PSCCH transmission.

[0165] In one embodiment, the PRS type includes PRS type 1, and multiplexing the PSCCH with the PRS includes starting the PRS symbol immediately after the PSCCH symbol of the resource element, without frequency division multiplexing the PRS with the PSCCH.

[0166] In one embodiment, the processor 1105 also frequency-division multiplexes the side link control information (“SCI”) with the PSCCH in symbols 2 and 3 of the resource element, and the transceiver transmits the multiplexed SCI and PSCCH, as well as a preload demodulation reference signal for decoding the SCI.

[0167] In one embodiment, the PRS type includes PRS type 2, and multiplexing the PSCCH with the PRS includes sending the PSCCH corresponding to the ranging pair in the starting resource block of each subchannel of the resource element configured for the resource pool.

[0168] In one embodiment, the PRS type includes PRS type 2, and multiplexing the PSCCH with the PRS includes defining PSCCH symbols and multiple physical resource blocks (“PRBs”) for the resource pool, and sending PSCCH symbols from the starting resource block of the resource pool, with each PSCCH resource being multiplexed and including information related to the associated ranging pair.

[0169] In one embodiment, the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes: performing time-division multiplexing of the pulse sequences of the PSCCH and the PRS, without performing frequency-division multiplexing of the PSCCH and the pulse sequences.

[0170] In one embodiment, the PRS type includes PRS type 3, and multiplexing PSCCH with PRS includes: defining multiple PSCCH symbols for each resource pool for first-side link control information (“SCI”) transmission and second SCI transmission, performing frequency division multiplexing of the first SCI and the second SCI, and transmitting the first SCI at the start resource block of the sub-channel of the resource element.

[0171] In one embodiment, the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes: defining PSCCH symbols and multiple physical resource blocks (“PRBs”) for each PSCCH in the resource pool, sending PSCCH symbols from the starting resource block of the resource pool, frequency division multiplexing each PSCCH resource and including information associated with the associated ranging pair, and using any remaining frequency resources to send side link control information (“SCI”) that is frequency division multiplexed with the PSCCH resources.

[0172] In one embodiment, the resource pool configuration includes a bitmap defined for each PRS type using symbolic and logical-side link slots.

[0173] In one embodiment, the resource pool configuration includes a processing time offset for each positioning method associated with each PRS type.

[0174] In one embodiment, the resource pool configuration for type 2PRS includes a root sequence identifier and dynamic signaling for cyclic shift values.

[0175] In one embodiment, the resource pool configuration for type 3PRS includes dynamic signaling of pulse duration and offset for pulses sent from the side link control information (“SCI”) for each ranging pair.

[0176] In one embodiment, transceiver 1125 receives a PRS configuration of at least one PRS type for receiving a Positioning Reference Signal (“PRS”) from at least one second network device, a resource pool configuration of a ranging signal type for receiving a configuration associated with relative positioning measurements, a multiplexing configuration associated with multiplexing a Physical Side Link Control Channel (“PSCCH”) with the PRS, and receives ranging signals from at least one second network device according to the received PRS configuration, resource pool configuration, and multiplexing configuration.

[0177] Figure 12 A network device 1200 capable of lateral link ranging for a positioning reference signal type is depicted according to embodiments of the present disclosure. In one embodiment, the network device 1200 may be an implementation of a RAN node, such as the basic unit 121 and / or RAN node 210 as described above. Furthermore, the basic network device 1200 may include a processor 1205, a memory 1210, an input device 1215, an output device 1220, and a transceiver 1225.

[0178] In some embodiments, input device 1215 and output device 1220 are combined into a single device, such as a touchscreen. In some embodiments, network device 1200 may not include any input device 1215 and / or output device 1220. In various embodiments, network device 1200 may include one or more of the following: processor 1205, memory 1210, and transceiver 1225, and may not include input device 1215 and / or output device 1220.

[0179] As depicted, transceiver 1225 includes at least one transmitter 1230 and at least one receiver 1235. Here, transceiver 1225 communicates with one or more remote units 175. Additionally, transceiver 1225 may support at least one network interface 1240 and / or application interface 1245. The application interface(s) 1245 may support one or more APIs. The network interface(s) 1240 may support 3GPP reference points such as Uu, N1, N2, and N3. Other network interfaces 1240 may be supported, as will be understood by those skilled in the art.

[0180] In one embodiment, processor 1205 may include any known controller capable of executing computer-readable instructions and / or performing logical operations. For example, processor 1205 may be a microcontroller, microprocessor, CPU, GPU, auxiliary processing unit, FPGA, or similar programmable controller. In some embodiments, processor 1205 executes instructions stored in memory 1210 to perform the methods and routines described herein. Processor 1205 is communicatively coupled to memory 1210, input device 1215, output device 1220, and transceiver 1225.

[0181] In various embodiments, network device 1200 is a RAN node (e.g., gNB) communicating with one or more UEs, as described herein. In such embodiments, processor 1205 controls network device 1200 to perform the RAN behaviors described above. When operating as a RAN node, processor 1205 may include an application processor (also referred to as the "main processor") that manages application domain and operating system ("OS") functions and a baseband processor (also referred to as the "baseband radio processor") that manages radio functions.

[0182] In one embodiment, memory 1210 is a computer-readable storage medium. In some embodiments, memory 1210 includes volatile computer storage media. For example, memory 1210 may include RAM, including dynamic RAM (“DRAM”), synchronous dynamic RAM (“SDRAM”), and / or static RAM (“SRAM”). In some embodiments, memory 1210 includes non-volatile computer storage media. For example, memory 1210 may include a hard disk drive, flash memory, or any other suitable non-volatile computer storage device. In some embodiments, memory 1210 includes both volatile and non-volatile computer storage media.

[0183] In some embodiments, memory 1210 stores data related to lateral walking link ranging for a positioning reference signal type. For example, memory 1210 may store parameters, configurations, resource assignments, policies, etc., as described above. In some embodiments, memory 1210 also stores program code and related data, such as an operating system or other controller algorithms operating on device 1200.

[0184] In one embodiment, input device 1215 may include any known computer input device, including a touch panel, button, keyboard, stylus, microphone, etc. In some embodiments, input device 1215 may be integrated with output device 1220, for example, as a touchscreen or similar touch-sensitive display. In some embodiments, input device 1215 includes a touchscreen, allowing text to be entered using a virtual keyboard displayed on the touchscreen and / or by handwriting on the touchscreen. In some embodiments, input device 1215 includes two or more different devices, such as a keyboard and a touch panel.

[0185] In one embodiment, output device 1220 is designed to output visual, auditory, and / or tactile signals. In some embodiments, output device 1220 includes an electronically controllable display or display device capable of outputting visual data to a user. For example, output device 1220 may include, but is not limited to, LCD displays, LED displays, OLED displays, projectors, or similar display devices capable of outputting images, text, etc., to a user. As another non-limiting example, output device 1220 may include a wearable display, such as a smartwatch, smart glasses, head-up display, etc., that is separate from but communicatively coupled to the rest of network device 1200. Furthermore, output device 1220 may be a component of a smartphone, personal digital assistant, television, desktop computer, laptop computer, personal computer, vehicle dashboard, etc.

[0186] In some embodiments, output device 1220 includes one or more speakers for generating sound. For example, output device 1220 may generate an audible alarm or notification (e.g., a beep or ringtone). In some embodiments, output device 1220 includes one or more haptic devices for generating vibration, motion, or other haptic feedback. In some embodiments, all or part of output device 1220 may be integrated with input device 1215. For example, input device 1215 and output device 1220 may form a touchscreen or similar touch-sensitive display. In other embodiments, output device 1220 may be located near input device 1215.

[0187] Transceiver 1225 includes at least a transmitter 1230 and at least one receiver 1235. One or more transmitters 1230 can be used to communicate with a UE, as described herein. Similarly, one or more receivers 1235 can be used to communicate with network functions in a PLMN and / or RAN, as described herein. Although only one transmitter 1230 and one receiver 1235 are shown, network device 1200 can have any suitable number of transmitters 1230 and receivers 1235. Furthermore, the transmitter(s) 1230 and receiver(s) 1235 can be of any suitable type.

[0188] In one embodiment, transceiver 1225 receives a PRS configuration for transmitting a Positioning Reference Signal (“PRS”) of at least one PRS type to at least one second network device, a resource pool configuration for transmitting the PRS associated with a relative positioning measurement, and a multiplexing configuration for multiplexing the Physical Side Link Control Channel (“PSCCH”) with the PRS. In one embodiment, processor 1205 multiplexes the PSCCH with the PRS according to the multiplexing configuration. In another embodiment, transceiver 1225 transmits the multiplexed PSCCH and PRS to at least one second device according to the PRS configuration and the resource pool configuration.

[0189] In one embodiment, the resource pool configuration includes at least one PRS type, each of the at least one PRS type being associated with one or more of pseudo-random sequence transmission, Zadoff-chu sequence transmission, and pulse-based sequence transmission.

[0190] In one embodiment, the PRS type includes PRS type 1, and multiplexing the PSCCH with the PRS includes: frequency-division multiplexing the PRS and PSCCH positions by starting the PRS symbol at the second symbol of the resource element, wherein the PRS position is punctured for PSCCH transmission.

[0191] In one embodiment, the PRS type includes PRS type 1, and multiplexing the PSCCH with the PRS includes starting the PRS symbol immediately after the PSCCH symbol of the resource element, without frequency division multiplexing the PRS with the PSCCH.

[0192] In one embodiment, the processor 1205 also frequency-division multiplexes the side link control information (“SCI”) with the PSCCH in symbols 2 and 3 of the resource element, and the transceiver transmits the multiplexed SCI and PSCCH, as well as a preload demodulation reference signal for decoding the SCI.

[0193] In one embodiment, the PRS type includes PRS type 2, and multiplexing the PSCCH with the PRS includes: transmitting the PSCCH corresponding to the ranging pair in the starting resource block of each subchannel of the resource element configured for the resource pool.

[0194] In one embodiment, the PRS type includes PRS type 2, and multiplexing the PSCCH with the PRS includes: defining PSCCH symbols and multiple physical resource blocks (“PRBs”) for a resource pool, and sending PSCCH symbols from the starting resource block of the resource pool, with each PSCCH resource being multiplexed and including information related to the associated ranging pair.

[0195] In one embodiment, the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes: performing time-division multiplexing of the pulse sequences of the PSCCH and the PRS, without performing frequency-division multiplexing of the PSCCH and the pulse sequences.

[0196] In one embodiment, the PRS type includes PRS type 3, and multiplexing PSCCH with PRS includes: defining multiple PSCCH symbols for each resource pool for first-side link control information (“SCI”) transmission and second SCI transmission, performing frequency division multiplexing of the first SCI and the second SCI, and transmitting the first SCI at the start resource block of the sub-channel of the resource element.

[0197] In one embodiment, the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes: defining PSCCH symbols and multiple physical resource blocks (“PRBs”) for each PSCCH in the resource pool, sending PSCCH symbols from the starting resource block of the resource pool, frequency division multiplexing each PSCCH resource and including information associated with the associated ranging pair, and using any remaining frequency resources to send side link control information (“SCI”) that is frequency division multiplexed with the PSCCH resources.

[0198] In one embodiment, the resource pool configuration includes a bitmap defined for each PRS type using symbolic and logical-side link slots.

[0199] In one embodiment, the resource pool configuration includes a processing time offset for each positioning method associated with each PRS type.

[0200] In one embodiment, the resource pool configuration for type 2PRS includes a root sequence identifier and dynamic signaling for cyclic shift values.

[0201] In one embodiment, the resource pool configuration for type 3PRS includes dynamic signaling of pulse duration and offset for pulses sent from the side link control information (“SCI”) for each ranging pair.

[0202] In one embodiment, transceiver 1225 receives a PRS configuration of at least one PRS type for receiving a Positioning Reference Signal (“PRS”) from at least one second network device, a resource pool configuration of a ranging signal type for receiving a configuration associated with relative positioning measurements, a multiplexing configuration associated with multiplexing a Physical Side Link Control Channel (“PSCCH”) with the PRS, and receives ranging signals from at least one second network device according to the received PRS configuration, resource pool configuration, and multiplexing configuration.

[0203] Figure 13 An embodiment of a method 1300 for lateral link ranging of a positioning reference signal type according to embodiments of the present disclosure is described. In various embodiments, method 1300 is performed by user equipment devices in a mobile communication network, such as the aforementioned remote unit 105, UE 205 and / or user equipment device 1100, and / or network equipment devices 1200, such as basic unit 121. In some embodiments, method 1300 is performed by a processor such as a microcontroller, microprocessor, CPU, GPU, auxiliary processing unit, FPGA, etc.

[0204] In one embodiment, method 1300 begins and receives 1305 a PRS configuration for transmitting a Positioning Reference Signal (“PRS”) of at least one PRS type to at least one second network device. In one embodiment, method 1300 receives 1310 a resource pool configuration for transmitting the PRS associated with a relative positioning measurement. In one embodiment, method 1300 receives 1315 a multiplexing configuration for multiplexing the Physical Side Link Control Channel (“PSCCH”) with the PRS. In one embodiment, method 1300 multiplexes the PSCCH with the PRS according to the multiplexing configuration 1320. In one embodiment, method 1300 transmits the multiplexed PSCCH and PRS to at least one second device according to the PRS configuration and the resource pool configuration 1325. Method 1300 ends.

[0205] Figure 14 An embodiment of a method 1400 for lateral link ranging of a positioning reference signal type according to embodiments of the present disclosure is described. In various embodiments, method 1400 is performed by user equipment devices in a mobile communication network, such as the aforementioned remote unit 105, UE 205 and / or user equipment device 1100, and / or network equipment devices 1200, such as basic unit 121. In some embodiments, method 1700 is performed by a processor such as a microcontroller, microprocessor, CPU, GPU, auxiliary processing unit, FPGA, etc.

[0206] In one embodiment, method 1400 begins and receives 1405 a PRS configuration of at least one PRS type for receiving a Positioning Reference Signal (“PRS”) from at least one second network device. In one embodiment, method 1400 receives 1410 a resource pool configuration of a ranging signal type associated with a relative positioning measurement configuration. In one embodiment, method 1400 receives 1415 a multiplexing configuration associated with multiplexing a Physical Side Link Control Channel (“PSCCH”) with the PRS. In one embodiment, method 1400 receives 1420 a ranging signal from at least one second network device based on the received PRS configuration, resource pool configuration, and multiplexing configuration. Method 1400 ends.

[0207] According to embodiments of this disclosure, a first apparatus for lateral link ranging for a positioning reference signal type is disclosed herein. The first apparatus can be implemented using user equipment devices in a mobile communication network, such as the aforementioned remote unit 105, UE 205, and / or user equipment device 1100, and / or network equipment device 1200, such as basic unit 121. In one embodiment, the first apparatus is implemented using a processor such as a microcontroller, microprocessor, CPU, GPU, auxiliary processing unit, FPGA, etc.

[0208] In one embodiment, the first device includes a transceiver that receives a PRS configuration for transmitting a Positioning Reference Signal (“PRS”) of at least one PRS type to at least one second network device, a resource pool configuration for transmitting a PRS associated with a relative positioning measurement, and a multiplexing configuration for multiplexing a Physical Side Link Control Channel (“PSCCH”) with the PRS. In one embodiment, the first device includes a processor that multiplexes the PSCCH with the PRS according to the multiplexing configuration. In one embodiment, the transceiver transmits the multiplexed PSCCH and PRS to at least one second device according to the PRS configuration and the resource pool configuration.

[0209] In one embodiment, the resource pool configuration includes at least one PRS type, each of the at least one PRS type being associated with one or more of pseudo-random sequence transmission, Zadoff-chu sequence transmission, and pulse-based sequence transmission.

[0210] In one embodiment, the PRS type includes PRS type 1, and multiplexing the PSCCH with the PRS includes: frequency-division multiplexing the PRS and PSCCH positions by starting the PRS symbol at the second symbol of the resource element, wherein the PRS position is punctured for PSCCH transmission.

[0211] In one embodiment, the PRS type includes PRS type 1, and multiplexing the PSCCH with the PRS includes starting the PRS symbol immediately after the PSCCH symbol of the resource element, without frequency division multiplexing the PRS with the PSCCH.

[0212] In one embodiment, the processor also frequency-division multiplexes the side link control information (“SCI”) with the PSCCH in symbols 2 and 3 of the resource element, and the transceiver transmits the multiplexed SCI and PSCCH, as well as a preload demodulation reference signal for decoding the SCI.

[0213] In one embodiment, the PRS type includes PRS type 2, and multiplexing the PSCCH with the PRS includes: transmitting the PSCCH corresponding to the ranging pair in the starting resource block of each subchannel of the resource element configured for the resource pool.

[0214] In one embodiment, the PRS type includes PRS type 2, and multiplexing the PSCCH with the PRS includes: defining PSCCH symbols and multiple physical resource blocks (“PRBs”) for a resource pool, and sending PSCCH symbols from the starting resource block of the resource pool, each PSCCH resource being multiplexed and containing information related to the associated ranging pair.

[0215] In one embodiment, the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes: performing time-division multiplexing of the pulse sequences of the PSCCH and the PRS, without performing frequency-division multiplexing of the PSCCH and the pulse sequences.

[0216] In one embodiment, the PRS type includes PRS type 3, and multiplexing PSCCH with PRS includes: defining multiple PSCCH symbols for each resource pool for first-side link control information (“SCI”) transmission and second SCI transmission, performing frequency division multiplexing of the first SCI and the second SCI, and transmitting the first SCI at the start resource block of the sub-channel of the resource element.

[0217] In one embodiment, the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes: defining PSCCH symbols and multiple physical resource blocks (“PRBs”) for each PSCCH in the resource pool, sending PSCCH symbols from the starting resource block of the resource pool, frequency division multiplexing each PSCCH resource and including information associated with the associated ranging pair, and using any remaining frequency resources to send side link control information (“SCI”) that is frequency division multiplexed with the PSCCH resources.

[0218] In one embodiment, the resource pool configuration includes a bitmap defined for each PRS type using symbolic and logical-side link slots.

[0219] In one embodiment, the resource pool configuration includes a processing time offset for each positioning method associated with each PRS type.

[0220] In one embodiment, the resource pool configuration for type 2PRS includes a root sequence identifier and dynamic signaling for cyclic shift values.

[0221] In one embodiment, the resource pool configuration for type 3PRS includes dynamic signaling of pulse duration and offset for pulses sent from the side link control information (“SCI”) for each ranging pair.

[0222] According to embodiments of this disclosure, a first method for lateral link ranging for a positioning reference signal type is disclosed herein. The first method is performed by user equipment devices in a mobile communication network, such as the aforementioned remote unit 105, UE 205, and / or user equipment device 1100, and / or network equipment devices 1200, such as basic unit 121. In some embodiments, the first method is performed by a processor such as a microcontroller, microprocessor, CPU, GPU, auxiliary processing unit, FPGA, etc.

[0223] In one embodiment, the first method receives a PRS configuration for transmitting a Positioning Reference Signal (“PRS”) of at least one PRS type to at least one second network device, a resource pool configuration for transmitting the PRS associated with a relative positioning measurement, and a multiplexing configuration for multiplexing the Physical Side Link Control Channel (“PSCCH”) with the PRS. In one embodiment, the first method multiplexes the PSCCH with the PRS according to the multiplexing configuration. In another embodiment, the first method transmits the multiplexed PSCCH and PRS to at least one second device according to the PRS configuration and the resource pool configuration.

[0224] In one embodiment, the resource pool configuration includes at least one PRS type, each of the at least one PRS type being associated with one or more of pseudo-random sequence transmission, Zadoff-chu sequence transmission, and pulse-based sequence transmission.

[0225] In one embodiment, the PRS type includes PRS type 1, and multiplexing the PSCCH with the PRS includes: frequency-division multiplexing the PRS and PSCCH positions by starting the PRS symbol at the second symbol of the resource element, wherein the PRS position is punctured for PSCCH transmission.

[0226] In one embodiment, the PRS type includes PRS type 1, and multiplexing the PSCCH with the PRS includes starting the PRS symbol immediately after the PSCCH symbol of the resource element, without frequency division multiplexing the PRS with the PSCCH.

[0227] In one embodiment, the first method further performs frequency division multiplexing of the side link control information (“SCI”) and PSCCH in symbols 2 and 3 of the resource element, and the transceiver transmits the multiplexed SCI and PSCCH, as well as a preload demodulation reference signal for decoding the SCI.

[0228] In one embodiment, the PRS type includes PRS type 2, and multiplexing the PSCCH with the PRS includes sending the PSCCH corresponding to the ranging pair in the starting resource block of each subchannel of the resource element configured for the resource pool.

[0229] In one embodiment, the PRS type includes PRS type 2, and multiplexing the PSCCH with the PRS includes: defining PSCCH symbols and multiple physical resource blocks (“PRBs”) for a resource pool, and sending PSCCH symbols from the starting resource block of the resource pool, each PSCCH resource being multiplexed and containing information related to the associated ranging pair.

[0230] In one embodiment, the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes time-division multiplexing the pulse sequences of the PSCCH and the PRS, without frequency-division multiplexing the PSCCH and the pulse sequences.

[0231] In one embodiment, the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes defining multiple PSCCH symbols for each resource pool for first-side link control information (“SCI”) transmission and second SCI transmission, the first SCI and the second SCI being frequency-division multiplexed, and the first SCI being transmitted at the start resource block of the sub-channel of the resource element.

[0232] In one embodiment, the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes: defining PSCCH symbols and multiple physical resource blocks (“PRBs”) for each PSCCH in the resource pool, and sending PSCCH symbols from the starting resource block of the resource pool. Each PSCCH resource is frequency-division multiplexed and includes information related to the associated ranging pair. Any remaining frequency resources are used to send side link control information (“SCI”) that is frequency-division multiplexed with the PSCCH resources.

[0233] In one embodiment, the resource pool configuration includes a bitmap defined for each PRS type using symbolic and logical-side link slots.

[0234] In one embodiment, the resource pool configuration includes a processing time offset for each positioning method associated with each PRS type.

[0235] In one embodiment, the resource pool configuration for type 2PRS includes a root sequence identifier and dynamic signaling for cyclic shift values.

[0236] In one embodiment, the resource pool configuration for type 3PRS includes dynamic signaling of pulse duration and offset for pulses sent from the side link control information (“SCI”) for each ranging pair.

[0237] According to embodiments of this disclosure, a second apparatus for lateral link ranging for a positioning reference signal type is disclosed herein. The second apparatus may be implemented by user equipment devices in a mobile communication network, such as the aforementioned remote unit 105, UE 205, and / or user equipment device 1100, and / or network equipment devices 1200, such as basic unit 121. In one embodiment, the second apparatus is implemented by a processor such as a microcontroller, microprocessor, CPU, GPU, auxiliary processing unit, FPGA, etc.

[0238] In one embodiment, the second device includes a transceiver that receives a PRS configuration of at least one PRS type for receiving a Positioning Reference Signal (“PRS”) from at least one second network device, a resource pool configuration of a ranging signal type for receiving a configuration associated with relative positioning measurements, a multiplexing configuration associated with multiplexing a Physical Side Link Control Channel (“PSCCH”) with the PRS, and receives ranging signals from at least one second network device based on the received PRS configuration, resource pool configuration, and multiplexing configuration.

[0239] According to embodiments of this disclosure, a second method for lateral link ranging for a positioning reference signal type is disclosed herein. The second method is performed by user equipment devices in a mobile communication network, such as the aforementioned remote unit 105, UE 205, and / or user equipment device 1100, and / or network equipment devices 1200, such as basic unit 121. In some embodiments, the second method is performed by a processor such as a microcontroller, microprocessor, CPU, GPU, auxiliary processing unit, FPGA, etc.

[0240] In one embodiment, the second method receives a PRS configuration of at least one PRS type for receiving a Positioning Reference Signal (“PRS”) from at least one second network device, a resource pool configuration of a ranging signal type for receiving a configuration associated with relative positioning measurements, a multiplexing configuration associated with multiplexing a Physical Side Link Control Channel (“PSCCH”) with the PRS, and receives a ranging signal from at least one second network device based on the received PRS configuration, resource pool configuration, and multiplexing configuration.

[0241] The embodiments may be practiced in other specific forms. The described embodiments are to be considered illustrative rather than restrictive in all respects. Therefore, the scope of the invention is indicated by the appended claims rather than by the foregoing description. All variations within the meaning and equivalence of the claims should be included within the scope of the claims.

Claims

1. An apparatus for wireless communication, the apparatus comprising: Transceiver, which: Receive a PRS configuration for transmitting a positioning reference signal (PRS) of at least one PRS type to at least one second network device; Receive resource pool configuration for sending the PRS associated with relative positioning measurements; and Receive multiplexing configuration for multiplexing the physical side link control channel PSCCH with the PRS; and A processor that, according to the multiplexing configuration, multiplexes the PSCCH and the PRS; The transceiver sends the multiplexed PSCCH and PRS to the at least one second network device according to the PRS configuration and the resource pool configuration.

2. The apparatus according to claim 1, wherein the resource pool configuration includes: At least one PRS type, each of the at least one PRS type being associated with one or more of pseudo-random sequence transmission, Zadoff-chu sequence transmission, and pulse-based sequence transmission.

3. The apparatus of claim 1, wherein the PRS type includes PRS type 1, and multiplexing the PSCCH with the PRS includes: By starting the symbol of the PRS at the second symbol of the resource element, the PRS and the PSCCH position are frequency-division multiplexed, and the PRS position is punctured for the transmission of the PSCCH.

4. The apparatus of claim 1, wherein the PRS type includes PRS type 1, and multiplexing the PSCCH with the PRS includes: The PRS symbol begins immediately after the PSCCH symbol of the resource element, without frequency division multiplexing the PRS with the PSCCH.

5. The apparatus of claim 4, wherein the processor further performs frequency division multiplexing of the side link control information (SCI) and the PSCCH in symbols 2 and 3 of the resource element, and the transceiver transmits the multiplexed SCI and PSCCH, as well as a preload demodulation reference signal for decoding the SCI.

6. The apparatus of claim 1, wherein the PRS type includes PRS type 2, and multiplexing the PSCCH with the PRS includes: In the starting resource block of each subchannel of the resource element configured for the resource pool, the PSCCH corresponding to the ranging pair is transmitted.

7. The apparatus of claim 1, wherein the PRS type includes PRS type 2, and multiplexing the PSCCH with the PRS includes: A PSCCH symbol and multiple Physical Resource Blocks (PRBs) are defined for a resource pool, and the PSCCH symbol is sent from the starting resource block of the resource pool. Each PSCCH resource is multiplexed and includes information related to the associated ranging pair.

8. The apparatus of claim 1, wherein the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes: The pulse sequences of the PSCCH and the PRS are time-division multiplexed, but the pulse sequences of the PSCCH and the PRS are not frequency-division multiplexed.

9. The apparatus of claim 1, wherein the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes: Multiple PSCCH symbols are defined for each resource pool for transmission of first-side link control information (SCI) and second-side SCI. The first SCI and the second SCI are frequency-division multiplexed. The first SCI is transmitted at the start resource block of the sub-channel of the resource element.

10. The apparatus of claim 1, wherein the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes: For each PSCCH in the resource pool, a PSCCH symbol and multiple Physical Resource Blocks (PRBs) are defined, and the PSCCH symbol is sent from the starting resource block of the resource pool. Each PSCCH resource is frequency-division multiplexed and includes information associated with the associated ranging pair. Any remaining frequency resources are used to send side-link control information (SCI) that is frequency-division multiplexed with the PSCCH resource.

11. The apparatus of claim 1, wherein the resource pool configuration includes one or more of the following: a bitmap defined by symbols and logical-side link time slots for each PRS type, and a processing time offset for each positioning method associated with each PRS type.

12. The apparatus of claim 1, wherein the resource pool configuration for type 2 PRS comprises: The root sequence identifier and the dynamic signaling of the cyclic shift value.

13. The apparatus of claim 1, wherein the resource pool configuration for type 3 PRS comprises: Dynamic signaling of the pulse duration and offset of the pulses sent from the Side Link Control Information (SCI) for each ranging pair.

14. An apparatus for wireless communication, the apparatus comprising: Transceiver, which: Receive a PRS configuration of at least one PRS type for receiving a Position Reference Signal (PRS) from at least one second network device; Receive resource pool configuration for receiving ranging signal types associated with relative positioning measurements; Receive multiplexing configuration for multiplexing the physical side link control channel PSCCH with the PRS; and Ranging signals are received from the at least one second network device based on the received PRS configuration, the resource pool configuration, and the multiplexing configuration.

15. A method for wireless communication, the method comprising: Receive a PRS configuration for transmitting a positioning reference signal (PRS) of at least one PRS type to at least one second network device; Receive resource pool configuration for sending the PRS associated with relative positioning measurements; Receive multiplexing configuration for multiplexing the physical side link control channel PSCCH with the PRS; According to the multiplexing configuration, the PSCCH and the PRS are multiplexed; as well as According to the PRS configuration and the resource pool configuration, the multiplexed PSCCH and PRS are sent to the at least one second network device.

16. The method of claim 15, wherein the resource pool configuration includes: At least one PRS type, each of the at least one PRS type being associated with one or more of pseudo-random sequence transmission, Zadoff-chu sequence transmission, and pulse-based sequence transmission.

17. The method of claim 15, wherein the PRS type includes PRS type 1, and multiplexing the PSCCH with the PRS includes: By starting the symbol of the PRS at the second symbol of the resource element, the PRS and the PSCCH position are frequency-division multiplexed, and the PRS position is punctured for the transmission of the PSCCH.

18. The method of claim 15, wherein the PRS type includes PRS type 1, and multiplexing the PSCCH with the PRS includes: The PRS symbol begins immediately after the PSCCH symbol of the resource element, without frequency division multiplexing the PRS with the PSCCH.

19. The method of claim 18, further comprising: In symbols 2 and 3 of the resource element, the side link control information (SCI) and the PSCCH are frequency-division multiplexed, and the transceiver transmits the multiplexed SCI and PSCCH, as well as a preload demodulation reference signal for decoding the SCI.

20. The method of claim 15, wherein the PRS type includes PRS type 2, and multiplexing the PSCCH with the PRS includes: In the starting resource block of each subchannel of the resource element configured for the resource pool, the PSCCH corresponding to the ranging pair is transmitted.

21. The method of claim 15, wherein the PRS type includes PRS type 2, and multiplexing the PSCCH with the PRS includes: A PSCCH symbol and multiple Physical Resource Blocks (PRBs) are defined for a resource pool, and the PSCCH symbol is sent from the starting resource block of the resource pool. Each PSCCH resource is multiplexed and includes information related to the associated ranging pair.

22. The method of claim 15, wherein the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes: The pulse sequences of the PSCCH and the PRS are time-division multiplexed, but the pulse sequences of the PSCCH and the PRS are not frequency-division multiplexed.

23. The method of claim 15, wherein the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes: Multiple PSCCH symbols are defined for each resource pool for transmission of first-side link control information (SCI) and second-side SCI. The first SCI and the second SCI are frequency-division multiplexed. The first SCI is transmitted at the start resource block of the sub-channel of the resource element.

24. The method of claim 15, wherein the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes: For each PSCCH in the resource pool, a PSCCH symbol and multiple Physical Resource Blocks (PRBs) are defined, and the PSCCH symbol is sent from the starting resource block of the resource pool. Each PSCCH resource is frequency-division multiplexed and includes information associated with the associated ranging pair. Any remaining frequency resources are used to send side-link control information (SCI) that is frequency-division multiplexed with the PSCCH resource.

25. The method of claim 15, wherein the resource pool configuration includes one or more of the following: a bitmap defined by symbols and logical-side link time slots for each PRS type, and a processing time offset for each positioning method associated with each PRS type.

26. The method of claim 15, wherein the resource pool configuration for type 2 PRS comprises: The root sequence identifier and the dynamic signaling of the cyclic shift value.

27. The method of claim 15, wherein the resource pool configuration for type 3 PRS comprises: Dynamic signaling of the pulse duration and offset of the pulses sent from the Side Link Control Information (SCI) for each ranging pair.

28. A method for wireless communication, the method comprising: Receive a PRS configuration of at least one PRS type for receiving a Position Reference Signal (PRS) from at least one second network device; Receive resource pool configuration for receiving ranging signal types associated with relative positioning measurements; Receive multiplexing configuration for multiplexing the physical side link control channel PSCCH with the PRS; and Ranging signals are received from the at least one second network device based on the received PRS configuration, the resource pool configuration, and the multiplexing configuration.

29. A processor for wireless communication, comprising: At least one memory; as well as At least one controller, coupled to at least one memory, and configured to cause the processor to: Receive a PRS configuration for transmitting a positioning reference signal (PRS) of at least one PRS type to at least one second network device; Receive resource pool configuration for sending the PRS associated with relative positioning measurements; Receive multiplexing configuration for multiplexing the physical side link control channel PSCCH with the PRS; According to the multiplexing configuration, the PSCCH and the PRS are multiplexed; as well as According to the PRS configuration and the resource pool configuration, the multiplexed PSCCH and PRS are sent to the at least one second network device.

30. The processor of claim 29, wherein the resource pool configuration includes: At least one PRS type, each of the at least one PRS type being associated with one or more of pseudo-random sequence transmission, Zadoff-chu sequence transmission, and pulse-based sequence transmission.

31. The processor of claim 29, wherein the PRS type includes PRS type 1, and multiplexing the PSCCH with the PRS includes: By starting the symbol of the PRS at the second symbol of the resource element, the PRS and the PSCCH position are frequency-division multiplexed, and the PRS position is punctured for the transmission of the PSCCH.

32. The processor of claim 29, wherein the PRS type includes PRS type 1, and multiplexing the PSCCH with the PRS includes: The PRS symbol begins immediately after the PSCCH symbol of the resource element, without frequency division multiplexing the PRS with the PSCCH.

33. The processor of claim 32, wherein the at least one controller is further configured to cause the processor to: frequency-division multiplex the sidelink control information (SCI) with the PSCCH in symbols 2 and 3 of the resource element, and the transceiver to transmit the multiplexed SCI and PSCCH, and a preload demodulation reference signal for decoding the SCI.

34. The processor of claim 29, wherein the PRS type includes PRS type 2, and multiplexing the PSCCH with the PRS includes: In the starting resource block of each subchannel of the resource element configured for the resource pool, the PSCCH corresponding to the ranging pair is transmitted.

35. The processor of claim 29, wherein the PRS type includes PRS type 2, and multiplexing the PSCCH with the PRS includes: A PSCCH symbol and multiple Physical Resource Blocks (PRBs) are defined for a resource pool, and the PSCCH symbol is sent from the starting resource block of the resource pool. Each PSCCH resource is multiplexed and includes information related to the associated ranging pair.

36. The processor of claim 29, wherein the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes: The pulse sequences of the PSCCH and the PRS are time-division multiplexed, but the pulse sequences of the PSCCH and the PRS are not frequency-division multiplexed.

37. The processor of claim 29, wherein the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes: Multiple PSCCH symbols are defined for each resource pool for transmission of first-side link control information (SCI) and second-side SCI. The first SCI and the second SCI are frequency-division multiplexed. The first SCI is transmitted at the start resource block of the sub-channel of the resource element.

38. The processor of claim 29, wherein the PRS type includes PRS type 3, and multiplexing the PSCCH with the PRS includes: For each PSCCH in the resource pool, a PSCCH symbol and multiple Physical Resource Blocks (PRBs) are defined, and the PSCCH symbol is sent from the starting resource block of the resource pool. Each PSCCH resource is frequency-division multiplexed and includes information associated with the associated ranging pair. Any remaining frequency resources are used to send side-link control information (SCI) that is frequency-division multiplexed with the PSCCH resource.

39. A processor for wireless communication, comprising: At least one memory; as well as At least one controller, coupled to at least one memory, and configured to cause the processor to: Receive a PRS configuration of at least one PRS type for receiving a Position Reference Signal (PRS) from at least one second network device; Receive resource pool configuration for receiving ranging signal types associated with relative positioning measurements; Receive multiplexing configuration for multiplexing the physical side link control channel PSCCH with the PRS; and Ranging signals are received from the at least one second network device based on the received PRS configuration, the resource pool configuration, and the multiplexing configuration.

40. A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, causes the processor to perform the method according to any one of claims 15 to 28.

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