SYSTEM AND METHOD FOR REPRESENTING POSITIONING INFORMATION IN A WIRELESS COMMUNICATION SYSTEM - Patent application

Abstract

A system and method for indicating positioning information in a wireless communication system is disclosed. In one aspect, a method includes receiving, by a wireless communication device, network timing error information from a network, and reporting, by the wireless communication device, downlink measurement results and user equipment (UE) timing error information to the network, where the network timing error information comprises at least one of transmit and receive point (TRP) transmit timing error group (TEG) information and TRP receive TEG information, and the UE timing error information includes at least one of UE transmit TEG information and UE receive TEG information.

Description

[Technical Field]

[0001] FIELD OF THE DISCLOSURE The present disclosure relates generally to wireless communications, including, but not limited to, systems and methods for obtaining positioning information in wireless communication systems. [Background technology]

[0002] The standardization body, the 3rd Generation Partnership Project (3GPP®), is currently in the process of specifying a new air interface called 5G New Radio (5G NR) and Next Generation Packet Core Network (NG-CN or NGC). 5G NR will have three main components: a 5G Access Network (5G-AN), a 5G Core Network (5GC), and a User Equipment (UE). To facilitate the availability of different data services and requirements, elements of the 5GC, also called Network Functions (NFs), have been simplified, and some of them are software-based so that they can be adapted according to needs. Summary of the Invention [Means for solving the problem]

[0003] One embodiment of the present invention relates to a wireless communication method, including receiving, by a wireless communication device, network timing error information from a network, and reporting, by the wireless communication device, downlink measurements and UE timing error information to the network, wherein the network timing error information includes at least one of Transmit and Receive Point (TRP) transmit timing error group (TEG) information and TRP receive TEG information, and the UE timing error information includes at least one of UE transmit TEG information and UE receive TEG information.

[0004] In some embodiments, the method may further include determining, by the wireless communication device, UE received TEG information according to the TRP transmitted TEG information.

[0005] In some embodiments, the TRP transmit TEG information includes at least one of a TRP transmit TEG identifier (ID), a first positioning reference signal (PRS) resource ID, or a first PRS resource set ID. In some embodiments, the TRP receive TEG information includes at least one of a TRP receive TEG ID, a first sounding reference signal (SRS) resource ID, or a first SRS resource set ID. In some embodiments, the UE transmit TEG information includes at least one of a UE transmit TEG ID, a second SRS resource ID, or a second SRS resource set ID. In some embodiments, the UE receive TEG information includes at least one of a UE receive TEG ID, a second PRS resource ID, or a second PRS resource set ID.

[0006] In some embodiments, the method further includes determining, by the wireless communication device, downlink measurements associated with the UE received TEG information having the same ID as the TRP transmitted TEG information, the downlink measurements being derived from downlink resources associated with the TRP transmitted TEG information.

[0007] In some embodiments, the method further includes determining, by the wireless communication device, downlink measurements associated with the UE received TEG information having an ID different from an ID of the TRP transmitted TEG information, the downlink measurements being derived from downlink resources associated with the TRP transmitted TEG information.

[0008] In some embodiments, in Downlink Time Difference of Arrival (DL-TDOA), at least one of the PRS resource IDs or at least one of the PRS resource set IDs indicates a PRS or PRS resource set configured in one or more Reference Signal Time Difference (RSTD) reference TRPs.

[0009] In some embodiments, the method further includes receiving, by the wireless communication device, from the network, one or more PRS resource sets configured in the RSTD-reference TRP.

[0010] In some embodiments, reporting the downlink measurement result includes, in DL-TDOA, reporting by the wireless communication device to the network a parameter indicating whether the RSTD measurement is within the same receiving TEG of the downlink measurement in the RSTD reference TRP.

[0011] In some embodiments, reporting downlink measurements includes reporting, in DL-TDOA, by the wireless communication device to the network in the measurement report, one or more reference timings derived from at least one of the TRP, a frequency layer in the TRP, a PRS resource set in the TRP, and a PRS resource in the TRP.

[0012] In some embodiments, reporting downlink measurement results includes, in DL-TDOA, reporting, by the wireless communication device, to a network in a measurement report, a number of groups, each group including RSTD measurements for at least one of the same RSTD-reference TRP, the same PRS resource in the RSTD-reference TRP, and the same PRS resource set in the RSTD-reference TRP.

[0013] In some embodiments, the number is equal to the number of UEs for which TEG information is received.

[0014] In some embodiments, the number is requested by a Location Management Function (LMF) of the network.

[0015] In some embodiments, when the SRS is configured to be quasi-co-located (QCL'd) with a synchronization signal block (SSB), the SSB is associated with geographic coordinates.

[0016] Another embodiment relates to a wireless communications device including at least one processor and a memory, the at least one processor configured to read code from the memory and implement the above method.

[0017] Another embodiment relates to a computer program product comprising computer readable program medium code stored thereon, the code, when executed by at least one processor, causing the at least one processor to implement the method set forth above.

[0018] Another embodiment includes a wireless communication method including transmitting, by a first network node, network timing error information to a wireless communication device, transmitting, by the first network node, the network timing error information to a second network node, and receiving, by the second network node, downlink measurements and user equipment (UE) timing error information from the wireless communication device. The method also includes receiving, by the second network node, uplink measurements and the network timing error information from the first network node. The network timing error information includes at least one of TRP transmitted TEG information and TRP received TEG information. The UE timing error information includes at least one of UE transmitted TEG information and UE received TEG information.

[0019] In some embodiments, the TRP transmission TEG information includes at least one of a TRP transmission TEG ID, a first PRS resource ID, or a first PRS resource set ID. The TRP reception TEG information includes at least one of a TRP reception TEG ID, a first SRS resource ID, a first SRS resource set ID, or an SRS resource receiving geographic coordinates. The UE transmission TEG information includes at least one of a UE transmission TEG ID, a second SRS resource ID, or a second SRS resource set ID. The UE reception TEG information includes at least one of a UE reception TEG ID, a second PRS resource ID, or a second PRS resource set ID.

[0020] In some embodiments, the method further includes determining, by the first network node, TRP received TEG information according to the UE transmitted TEG information.

[0021] In some embodiments, in DL-TDOA, at least one of the PRS resource IDs or at least one of the PRS resource set IDs indicates a PRS or a PRS resource set configured in one or more RSTD reference TRPs.

[0022] In some embodiments, the method further includes transmitting, by the first network node, to the wireless communication device, one or more PRS resource sets configured in the RSTD reference TRP.

[0023] In some embodiments, the method further includes, in DL-TDOA, receiving, by the first network node or the second network node, a parameter from the wireless communication device indicating whether the RSTD measurement is within the same receiving TEG of the downlink measurement at the reference TRP.

[0024] In some embodiments, the method further includes receiving, in DL-TDOA, by the first network node or the second network node from the wireless communication device in a measurement report, one or more reference timings derived from at least one of the TRP, a frequency layer in the TRP, a PRS resource set in the TRP, and a PRS resource in the TRP.

[0025] In some embodiments, the method further includes, in DL-TDOA, receiving, by the first network node or the second network node, from the wireless communication device, a number of groups in a measurement report, where each group includes RSTD measurements for at least one of the same RSTD-reference TRP, the same PRS resource in the RSTD-reference TRP, and the same PRS resource set in the RSTD-reference TRP.

[0026] In some embodiments, the number is equal to the number of UE received TEG information.

[0027] In some embodiments, the method further includes requesting the number by a second network node, the second network node being a Location Management Function (LMF).

[0028] In some embodiments, when an SRS is configured to be QCL'd with an SSB, the SSB is associated with a geographic coordinate.

[0029] Another embodiment relates to a wireless communications device including at least one processor and a memory, the at least one processor configured to read code from the memory and implement the above method.

[0030] Another embodiment relates to a computer program product comprising computer readable program medium code stored thereon, the code, when executed by at least one processor, causing the at least one processor to implement the method set forth above. The present invention provides, for example, the following. (Item 1) 1. A wireless communication method, the method comprising: receiving, by the wireless communication device, network timing error information from a network; reporting, by the wireless communication device, downlink measurements and user equipment (UE) timing error information to the network; Including, the network timing error information comprises at least one of transmit and receive point (TRP) transmit timing error group (TEG) information and TRP receive TEG information; The wireless communication method, wherein the UE timing error information comprises at least one of UE transmit TEG information and UE receive TEG information. (Item 2) 2. The method of claim 1, further comprising: determining, by the wireless communication device, the UE received TEG information according to the TRP transmitted TEG information. (Item 3) the TRP transmission TEG information comprises at least one of a TRP transmission TEG identifier (ID), a first positioning reference signal (PRS) resource ID, or a first PRS resource set ID; The TRP reception TEG information comprises at least one of a TRP reception TEG ID, a first sounding reference signal (SRS) resource ID, or a first SRS resource set ID; the UE transmission TEG information comprises at least one of a UE transmission TEG ID, a second SRS resource ID, or a second SRS resource set ID; Item 1. The method of item 1, wherein the UE received TEG information comprises at least one of a UE received TEG ID, a second PRS resource ID, or a second PRS resource set ID. (Item 4) The method of item 2 further includes determining, by the wireless communication device, downlink measurements associated with the UE received TEG information having the same ID as the TRP transmitted TEG information, wherein the downlink measurements are derived from downlink resources associated with the TRP transmitted TEG information. (Item 5) The method of item 2 further includes determining, by the wireless communication device, downlink measurements associated with the UE received TEG information having an ID different from an ID of the TRP transmission TEG information, wherein the downlink measurements are derived from the downlink resources associated with the TRP transmission TEG information. (Item 6) Item 4. The method of item 3, wherein in a downlink time difference of arrival (DL-TDOA), at least one of the PRS resource IDs or at least one of the PRS resource set IDs indicates a PRS or a PRS resource set configured in one or more reference signal time difference (RSTD) reference TRPs. (Item 7) 7. The method of claim 6, further comprising receiving, by the wireless communication device, from the network, one or more PRS resource sets configured in the RSTD-reference TRP. (Item 8) Item 1, the method of reporting the downlink measurement result includes reporting, by the wireless communication device, a parameter indicating whether a reference signal time difference (RSTD) measurement is within the same receiving TEG of a downlink measurement at an RSTD reference TRP in a downlink time difference of arrival (DL-TDOA) to the network. (Item 9) Item 1, wherein reporting the downlink measurement results includes reporting one or more reference timings to the network in a measurement report by the wireless communication device in a downlink time difference of arrival (DL-TDOA), and the reference timings are derived from at least one of a TRP, a frequency layer in the TRP, a PRS resource set in the TRP, and a PRS resource in the TRP. (Item 10) Item 1, wherein reporting the downlink measurement results includes reporting, by the wireless communication device, a number of groups in a measurement report to the network in a downlink time difference of arrival (DL-TDOA), and each group includes reference signal time difference (RSTD) measurements for at least one of the same RSTD reference TRP, the same PRS resource at the RSTD reference TRP, and the same set of PRS resources at the RSTD reference TRP. (Item 11) Item 11. The method of item 10, wherein the number is equal to the number of UEs in the received TEG information. (Item 12) Item 11. The method of item 10, wherein the number is requested by a Location Management Function (LMF) of the network. (Item 13) Item 4. The method of item 3, further comprising associating the SSB with geographic coordinates when the SRS is configured to be quasi-co-located (QCL) with the SSB. (Item 14) 10. A wireless communication device comprising at least one processor and a memory, the at least one processor configured to read code from the memory and implement the method described in claim 1. (Item 15) 10. A computer program product comprising computer-readable program medium code stored thereon, the code, when executed by at least one processor, causing the at least one processor to implement the method of claim 1. (Item 16) 1. A wireless communication method, the method comprising: transmitting, by a first network node, network timing error information to a wireless communication device; transmitting, by the first network node, the network timing error information to a second network node; receiving, by the second network node, downlink measurements and user equipment (UE) timing error information from the wireless communication device; receiving, by the second network node, uplink measurements and network timing error information from the first network node; Including, the network timing error information comprises at least one of transmit and receive point (TRP) transmit timing error group (TEG) information and TRP receive TEG information; The wireless communication method, wherein the UE timing error information comprises at least one of UE transmit TEG information and UE receive TEG information. (Item 17) the TRP transmission TEG information comprises at least one of a TRP transmission TEG identifier (ID), a first positioning reference signal (PRS) resource ID, or a first PRS resource set ID; the TRP reception TEG information comprises at least one of a TRP reception TEG ID, a first sounding reference signal (SRS) resource ID, a first SRS resource set ID, or an SRS resource receiving geographic coordinates; the UE transmission TEG information comprises at least one of a UE transmission TEG ID, a second SRS resource ID, or a second SRS resource set ID; Item 17. The method of item 16, wherein the UE receiving TEG information comprises at least one of a UE receiving TEG ID, a second PRS resource ID, or a second PRS resource set ID. (Item 18) Item 17. The method of item 16, further comprising: determining, by the first network node, the TRP received TEG information according to the UE transmitted TEG information. (Item 19) Item 18. The method of item 17, wherein in a downlink time difference of arrival (DL-TDOA), at least one of the PRS resource IDs or at least one of the PRS resource set IDs indicates a PRS or a PRS resource set configured in one or more reference signal time difference (RSTD) reference TRPs. (Item 20) 20. The method of claim 19, further comprising transmitting, by the first network node, one or more PRS resource sets configured in the RSTD reference TRP to the wireless communication device. (Item 21) Item 17. The method of item 16, further comprising: in a downlink time difference of arrival (DL-TDOA), receiving, by the first network node or the second network node, from the wireless communication device, a parameter indicating whether a reference signal time difference (RSTD) measurement is within the same receive TEG of a downlink measurement at a reference TRP. (Item 22) Item 17. The method of item 16, further comprising receiving, by the first network node or the second network node, one or more reference timings in a measurement report from the wireless communication device in a downlink time difference of arrival (DL-TDOA), wherein the reference timings are derived from at least one of a TRP, a frequency layer in the TRP, a PRS resource set in the TRP, and a PRS resource in the TRP. (Item 23) Item 17. The method of item 16, further comprising receiving, by the first network node or the second network node, from the wireless communication device, a number of groups in a measurement report in a downlink time difference of arrival (DL-TDOA), wherein each group includes Reference Signal Time Difference (RSTD) measurements for at least one of the same RSTD reference TRP, the same PRS resource at the RSTD reference TRP, and the same set of PRS resources at the RSTD reference TRP. (Item 24) 24. The method of claim 23, wherein the number is equal to the number of pieces of TEG information received by the UE. (Item 25) 24. The method of claim 23, further comprising requesting the number by the second network node, wherein the second network node is a Location Management Function (LMF). (Item 26) Item 18. The method of item 17, further comprising associating the SSB with geographic coordinates when the SRS is configured to be quasi-co-located (QCL) with the SSB. (Item 27) 17. A wireless communication device comprising at least one processor and a memory, wherein the at least one processor is configured to read code from the memory and to implement the method described in claim 16. (Item 28) 17. A computer program product comprising computer-readable program medium code stored thereon, the code, when executed by at least one processor, causing the at least one processor to implement the method of claim 16. [Brief explanation of the drawings]

[0031] [Figure 1] FIG. 1 illustrates an example wireless communication system in which the techniques disclosed herein may be implemented in accordance with some embodiments of the present disclosure.

[0032] [Figure 2] FIG. 2 illustrates a block diagram of an exemplary wireless communication system for transmitting and receiving wireless communication signals (e.g., Orthogonal Frequency Division Multiplexing (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA) signals) in accordance with some embodiments of the present disclosure.

[0033] [Figure 3] FIG. 3 illustrates a high-level schematic diagram of a 5G core positioning architecture for NG-RAN in accordance with some embodiments of the present disclosure.

[0034] [Figure 4] 4, 5, 6, 7, 8, 9, 10, 11, and 12 illustrate flowcharts of exemplary wireless communication processes according to some embodiments of the present disclosure. [Figure 5] 4, 5, 6, 7, 8, 9, 10, 11, and 12 illustrate flowcharts of exemplary wireless communication processes according to some embodiments of the present disclosure. [Figure 6] 4, 5, 6, 7, 8, 9, 10, 11, and 12 illustrate flowcharts of exemplary wireless communication processes according to some embodiments of the present disclosure. [Figure 7] 4, 5, 6, 7, 8, 9, 10, 11, and 12 illustrate flowcharts of exemplary wireless communication processes according to some embodiments of the present disclosure. [Figure 8] 4, 5, 6, 7, 8, 9, 10, 11, and 12 illustrate flowcharts of exemplary wireless communication processes according to some embodiments of the present disclosure. [Figure 9] 4, 5, 6, 7, 8, 9, 10, 11, and 12 illustrate flowcharts of exemplary wireless communication processes according to some embodiments of the present disclosure. [Figure 10] 4, 5, 6, 7, 8, 9, 10, 11, and 12 illustrate flowcharts of exemplary wireless communication processes according to some embodiments of the present disclosure. [Figure 11] 4, 5, 6, 7, 8, 9, 10, 11, and 12 illustrate flowcharts of exemplary wireless communication processes according to some embodiments of the present disclosure. [Figure 12] 4, 5, 6, 7, 8, 9, 10, 11, and 12 illustrate flowcharts of exemplary wireless communication processes according to some embodiments of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0035] Various exemplary embodiments of the present solution are described below with reference to the accompanying figures to enable those skilled in the art to make and use the present solution. As will be apparent to those skilled in the art, after perusing this disclosure, various changes or modifications to the examples described herein can be made without departing from the scope of the present solution. Thus, the present solution is not limited to the exemplary embodiments and applications described and illustrated herein. In addition, any specific order or hierarchy of steps in the methods disclosed herein is merely an example approach. Based on design preferences, the specific order or hierarchy of steps in a disclosed method or process can be rearranged while remaining within the scope of the present solution. Thus, those skilled in the art will understand that the methods and techniques disclosed herein present various steps or acts in a sample order, and that the present solution is not limited to the specific order or hierarchy presented, unless explicitly stated otherwise.

[0036] Accurate and precise positioning of UEs is important in 5G NR technology. Several methods exist for determining the location of a UE, including timing-based positioning methods such as downlink / uplink time difference of arrival (DL / UL-TDOA) and multi-round trip time (multi-RTT) methods. However, in timing-based positioning methods, timing delays or errors exist between the baseband and antennas at both the transmitting / receiving point (TRP) and the UE. This causes measurement results challenges for timing-based positioning methods, which require cancellation and / or remeasurement to obtain better accuracy. Timing error groups (TEGs) also exist where measurements or signals have the same timing delay or timing error. The present disclosure improves measuring and reporting timing errors and timing error groups for different positioning methods.

[0037] (1. Mobile Communication Technology and Environment)

[0038] 1 illustrates an example wireless communication system 100 in which techniques disclosed herein according to some embodiments of the present disclosure may be implemented. In the following discussion, the wireless communication system 100 may implement any wireless network, such as a cellular network or a narrowband Internet of Things (NE-IoT) network. Such an example system 100 includes a base station (BS) 102 (also referred to as a wireless communication node) and a UE 104 (also referred to as a wireless communication device) that may communicate with each other via a communication link 110 (e.g., a wireless communication channel), and clusters of cells 126, 130, 132, 134, 136, 138, and 140 that overlay a geographic area 101. In some examples, the network refers not only to one or more BSs (e.g., the BS 102) that communicate with the UE 104, but also to back-end entities and functions (e.g., a Location Management Function (LMF)). In other words, the network refers to components of the system 100 other than the UE 104. 1, BS 102 and UE 104 are contained within the respective geographic boundaries of cell 126. Each of the other cells 130, 132, 134, 136, 138, and 140 may include at least one base station that operates in its allocated bandwidth and provides adequate wireless coverage to its intended users.

[0039] For example, the BS 102 may operate within an allocated channel transmission bandwidth to provide an adequate coverage area to the UE 104. The BS 102 and the UE 104 may communicate via downlink radio frames 118 and uplink radio frames 124, respectively. Each radio frame 118 / 124 may be further divided into subframes 120 / 127, which may include data symbols 122 / 128. In this disclosure, the BS 102 and the UE 104 are generally described herein as non-limiting examples of “communication nodes” that may practice the methods disclosed herein. Such communication nodes may be capable of wireless and / or wired communication in accordance with various embodiments of the present solution.

[0040] 2 illustrates a block diagram of an exemplary wireless communication system 200 for transmitting and receiving wireless communication signals (e.g., Orthogonal Frequency Division Multiplexing (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA) signals) in accordance with some embodiments of the present disclosure. System 200 may include components and elements configured to support known or conventional operational features that need not be described in detail herein. In one illustrative embodiment, system 200 can be used to communicate (e.g., transmit and receive) data symbols within a wireless communication environment, such as system 100 of FIG. 1, as described above.

[0041] The system 200 generally includes a base station 202 (hereinafter “BS 202”) and a user equipment device 204 (hereinafter “UE 204”). The BS 202 includes a BS (base station) transceiver module 210, a BS antenna 212, a BS processor module 214, a BS memory module 216, and a network communication module 218, each of which is coupled and interconnected, as needed, via a data communication bus 220. The UE 204 includes a UE (user equipment) transceiver module 230, a UE antenna 232, a UE memory module 234, and a UE processor module 236, each of which is coupled and interconnected, as needed, via a data communication bus 240. The BS 202 communicates with the UE 204 via a communication channel 250, which may be any wireless channel or other medium suitable for the transmission of data as described herein.

[0042] As will be understood by those skilled in the art, system 200 may further include any number of modules other than those shown in FIG. 2 . Those skilled in the art will understand that the various illustrative blocks, modules, circuits, and processing logic described in connection with the embodiments disclosed herein may be implemented in hardware, computer-readable software, firmware, or any practical combination thereof. To clearly illustrate this interchangeability and compatibility of hardware, firmware, and software, the various illustrative components, blocks, modules, circuits, and steps are described generally in terms of their functionality. Whether such functionality is implemented as hardware, firmware, or software may depend on the particular application and design constraints imposed on the overall system. Those familiar with the concepts described herein may implement such functionality in a manner suitable for each particular application, but such implementation decisions should not be interpreted as limiting the scope of the present disclosure.

[0043] According to some embodiments, the UE transceiver 230 may be referred to herein as an “uplink” transceiver 230, where the uplink transceiver 230 includes a radio frequency (RF) transmitter and an RF receiver, each of which includes circuitry coupled to an antenna 232. A duplex switch (not shown) may alternatively couple the uplink transmitter or receiver to the uplink antenna in a time-duplex manner. Similarly, according to some embodiments, the BS transceiver 210 may be referred to herein as a downlink transceiver 210, where the downlink transceiver 210 includes an RF transmitter and an RF receiver, each of which includes circuitry coupled to an antenna 212. A downlink duplex switch may alternatively couple the downlink transmitter or receiver to the downlink antenna 212 in a time-duplex manner. The operation of the two transceiver modules 210 and 230 may be coordinated in time such that the downlink transmitter is coupled to the downlink antenna 212 at the same time that the uplink receiver circuitry is coupled to the uplink antenna 232 for reception of transmissions over the wireless transmission link 250. Conversely, the operation of the two transceivers 210 and 230 may be coordinated in time such that the uplink transmitter is coupled to the uplink antenna 232 at the same time that the downlink receiver is coupled to the downlink antenna 212 for reception of transmissions over the wireless transmission link 250. In some embodiments, there is truncated time synchronization with a minimum guard time between changes in duplex direction.

[0044] The UE transceiver 230 and the base station transceiver 210 are configured to communicate over a wireless data communication link 250 and cooperate with suitably configured RF antenna arrangements 212 / 232 capable of supporting a particular wireless communication protocol and modulation scheme. In some demonstrative embodiments, the UE transceiver 210 and the base station transceiver 210 are configured to support industry standards such as Long Term Evolution (LTE) and emerging 5G standards. However, it should be understood that the present disclosure is not necessarily limited in application to particular standards and associated protocols. Rather, the UE transceiver 230 and the base station transceiver 210 may be configured to support alternative or additional wireless data communication protocols, including future standards or variations thereof.

[0045] According to various embodiments, the BS 202 may be, for example, an evolved Node B (eNB), a serving eNB, a target eNB, a femto station, or a pico station. In some embodiments, the UE 204 may be embodied in various types of user devices, such as a mobile phone, a smartphone, a personal digital assistant (PDA), a tablet, a laptop computer, a wearable computing device, etc. The processor modules 214 and 236 may be implemented or realized using a general-purpose processor, an associative memory, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, any suitable programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein. As such, a processor may be realized as a microprocessor, a controller, a microcontroller, a state machine, etc. A processor may also be implemented as a combination of computing devices, e.g., a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other such configuration.

[0046] Furthermore, the steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, firmware, a software module executed by processor modules 214 and 236, respectively, or any practical combination thereof. Memory modules 216 and 234 may be realized as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. In this regard, memory modules 216 and 234 may be coupled to processor modules 210 and 230, respectively, such that processor modules 210 and 230 may read information from and write information to memory modules 216 and 234, respectively. Memory modules 216 and 234 may be integrated within their respective processor modules 210 and 230. In some embodiments, memory modules 216 and 234 may each include a cache memory for storing temporary variables or other intermediate information during execution of instructions to be executed by processor modules 210 and 230, respectively. Each of the memory modules 216 and 234 may also include non-volatile memory for storing instructions to be executed by the processor modules 210 and 230, respectively.

[0047] The network communications module 218 generally represents the hardware, software, firmware, processing logic, and / or other components of the base station 202 that enable bidirectional communications between the base station transceiver 210 and other network components and communications nodes configured to communicate with the base station 202. For example, the network communications module 218 may be configured to support Internet or WiMAX traffic. In a typical deployment, without limitation, the network communications module 218 provides an 802.3 Ethernet interface so that the base station transceiver 210 may communicate with conventional Ethernet-based computer networks. As such, the network communications module 218 may include a physical interface for connection to a computer network (e.g., a mobile switching center (MSC)). As used herein with respect to specified operations or functions, the terms “configured for,” “configured to,” and conjugations thereof, refer to devices, components, circuits, structures, machines, signals, etc. that are physically constructed, programmed, formatted, and / or arranged to perform the specified operations or functions.

[0048] The Open Systems Interconnection (OSI) model (referred to herein as the "Open Systems Interconnection Model") is a conceptual and logical layout that defines network communications used by open systems (e.g., wireless communication devices, wireless communication nodes) to interconnect and communicate with other systems. The model is divided into seven subcomponents or layers, each of which represents a conceptual collection of services provided to the layers above and below it. The OSI model also defines logical networks and effectively describes computer packet transfers through the use of different layer protocols. The OSI model may also be referred to as the seven-layer OSI model or seven-layer model. In some embodiments, the first layer may be the physical layer. In some embodiments, the second layer may be the medium access control (MAC) layer. In some embodiments, the third layer may be the radio link control (RLC) layer. In some embodiments, the fourth layer may be the packet data convergence protocol (PDCP) layer. In some embodiments, the fifth layer may be the radio resource control (RRC) layer. In some embodiments, the sixth layer may be a non-access stratum (NAS) layer or an Internet Protocol (IP) layer, and the seventh layer may be another layer.

[0049] Referring to Figure 3, a system 300 according to some embodiments is shown. A UE 104 can be communicatively connected to a TRP 304. One example of a TRP 304 is a BS 102. An Access and Mobility Management Function (AMF) 306 receives requests and handles connectivity or mobility management. For example, the AMF 306 sends a location service request to a Location Management Function (LMF) 308. The LMF 308 can process the location service request and return the location service results back to the AMF 306. The AMF 306 can return the location service back to the TRP 304.

[0050] (2. Methods for indicating positioning information)

[0051] The receiver (Rx) and transmitter (Tx) timing delay between the baseband and RF chain is incorporated in the timing measurement because time is recorded at baseband, but the duration (e.g., propagation time) measured for positioning is cut off at the antenna side for both the transmitting / receiving point (TRP) and the UE. In this disclosure, the timing delay may be referred to as timing error, transmission delay, transmission error, group delay, or group error. The BS 102 may be a next generation Node B (gNB) or a TRP.

[0052] A TEG is a group of UL / DL positioning signals or DL / UL measurements with the same timing error or timing error within a certain margin. A Tx TEG means that the transmitted positioning signals in the group have the same Tx timing error or timing error within a certain margin. An Rx TEG means that the UL or DL ​​measurements in the group have the same Rx timing error or timing error within a certain margin. A TRP may include multiple Tx TEGs and / or multiple Rx TEGs. A UE may have multiple Tx TEGs and / or multiple Rx TEGs. A TRP Tx TEG may have multiple PRS resources or PRS resource sets, and a UE Tx TEG may have multiple SRS resources or SRS resource sets.

[0053] For example, the TEG can be divided or grouped according to frequency layer, beam (e.g., spatial transmission filter), and / or panel (e.g., RF chain, antenna). For example, a PRS resource or set of PRS resources in a frequency layer with a transmit beam on one of the panels is in one TRP Tx TEG. As another example, a PRS resource or set of PRS resources in another frequency layer with the same transmit beam on the same panel may be in another TRP Tx TEG.

[0054] For example, the gNB may determine that PRS resources or sets of PRS resources in a single TRP with the same configured / indicated coordinates are within one TRP Tx TEG, the gNB may determine that UL measurements derived from SRS resources configured with the same PRS resource coordinates are within one TRP Rx TEG, or the gNB may determine that UL measurements derived from SRS resources configured with the same PRS resource are within one TRP Tx TEG.

[0055] With respect to the UE, the DL measurements may include or belong to one or more measurement types including a relative signal time difference (RSTD) measurement, a relative signal received power (RSRP) measurement, or an Rx-Tx time difference measurement. With respect to the TRP, the UL measurements may include or belong to one or more measurement types including a relative time of arrival (RTOA) measurement, an RSRP measurement, or an Rx-Tx time difference measurement.

[0056] The network may include at least one of an NG-RAN node and a 5GC element. The NG-RAN node may be a TRP, a gNB, or an RU, and the 5GC element may be an LMF, an AMF, etc. The network node may be a TRP or an LMF.

[0057] The reference TRP referred to in DL-TDOA may refer to the RSTD reference TRP, and the candidate TRP in DL-TDOA may refer to the neighboring TRPs around the reference TRP.

[0058] (A.UE Reporting of Rx TEG Information with DL Measurements)

[0059] The UE can report Rx TEG information accompanying DL measurements. The DL measurements can be from the DL-TDOA method, the downlink angle of departure (DL-AoD), and / or the multi-RTT method. For the DL-TDOA method, the Rx TEG information can include an Rx TEG identification (ID), a PRS resource ID configured in the RSTD reference TRP, a PRS resource set ID configured in the RSTD reference TRP, or a coordinate of a PRS resource configured in the RSTD reference TRP. For the multi-RTT and DL-AoD methods, the Rx TEG information can include an Rx TEG ID, a PRS resource ID, a PRS resource set ID, or a PRS resource coordinate. The Rx TEG ID can be an index and an integer, and it can also be referred to as a UE panel ID.

[0060] For example, in DL-TDOA, the UE can determine the UE Rx TEG of DL measurements for each reference TRP and each candidate TRP. The Rx TEG ID can be configured in each NR-DL-TDOA-MeasElement information element (IE) or in each NR-DL-TDOA-AdditionalMeasurementElement IE. If the DL measurement of the PRS resource from the reference TRP is associated with UE Rx TEG ID=1, the UE can report the UE Rx TEG ID=2 of the RSTD measurement in one of the measurement elements to indicate that the DL measurement of the PRS resource from the candidate TRP is associated with UE Rx TEG2. When the LMF (e.g., LMF 308) receives this RSTD measurement with the UE Rx TEG ID, the LMF tracks or records that this RSTD measurement result includes the unmitigated UE Rx timing error. The measurement element is an IE defined in NR-DL-TDOA-SignalMeasurementInformation in 37.355.

[0061] For another example, in DL-TDOA, the UE may report a PRS resource ID / PRS resource set ID configured in the reference TRP together with the RSTD measurement in each measurement element or each additional measurement element, which indicates that the RSTD measurement in the measurement element or additional measurement element is calculated for this PRS resource ID / PRS resource set ID of the reference TRP.

[0062] For example, in DL-TDOA or multi-RTT, the UE Rx TEG ID may be configured in a PRS resource or a PRS resource set.

[0063] For another example, in multi-RTT, the UE may report the UE Rx TEG ID of each Rx-Tx time difference measurement in each measurement element or each additional measurement element.

[0064] For another example, in DL-AoD, the UE may report the UE Rx TEG ID of each RSRP measurement in each measurement element or each additional measurement.

[0065] (B.LMF provides assistance data with TRP Tx TEG information to UE)

[0066] The LMF can provide assistance data with TRP Tx TEG information to the UE for UE-based positioning and UE-assisted positioning. The TRP Tx TEG information can be a Tx TEG ID, which can be configured per PRS resource, per PRS resource set, or per TRP. The TRP Tx TEG ID can indicate which TRP's panel / RF chain the associated PRS resource is transmitted from. Thus, the TRP Tx TEG ID can also be a TRP / gNB panel ID. If PRS resource coordinates are configured and / or indicated, the PRS resource configuration can implicitly indicate TRP Tx panel information according to different coordinates. PRSs with different coordinates may belong to different TRP panels.

[0067] For example, in DL-TDOA, several DL PRS resources configured in a reference TRP may be associated with a TRP Tx TEG ID, or one reference TRP may include multiple DL PRS resource sets. In this example, each set may be associated with a TRP Tx TEG ID, or several PRS resource sets may be associated with a TRP Tx TEG ID, or a TRP Tx TEG ID may be configured in the reference TRP.

[0068] Alternatively, the LMF or TRP provides TRP Rx TEG information to the UE for UE-based positioning.

[0069] (C. UE / TRP determines UE / TRP Rx TEG information according to TRP / UE Tx TEG information)

[0070] In DL-TDOA, multi-RTT, and DL-AoD methods, the UE can determine UE Rx TEG information according to the TRP Tx TEG information. If a TRP Tx TEG ID is configured in and / or associated with a PRS resource, PRS resource set, or TRP, when the UE receives this information, the UE can determine that the DL measurements derived from this PRS resource, PRS resource set, or TRP are associated with a UE Rx TEG with the same ID / index as the TRP Tx TEG. For example, in multi-RTT, the UE can receive a PRS1 configuration with Tx TEG ID=1 from TRP1 in the assistance data. Therefore, the UE can determine that the Rx-Tx time difference measurements derived from PRS1 should be within UE Rx TEG1. Alternatively, the UE can determine that the PRS resource, PRS resource set, or DL ​​measurements derived from this TRP are associated with a UE Rx TEG with a different ID / index than the TRP Tx TEG.

[0071] In UL-TDOA, multi-RTT, and uplink angle of arrival (UL-AoA) methods, the TRP can determine the TRP Rx TEG information according to the UE Tx TEG information. If the UE Tx TEG ID is associated with one or more SRS resources or SRS resource sets, and the TRP knows this information based on UE reporting or LMF request / scheduling, the TRP can determine that the UL measurements derived from the SRS resources associated with this UE Tx TEG ID belong to a specific TRP Rx TEG. The TRP Rx TEG ID can be the same as or different from the UE Tx TEG ID.

[0072] (D.LMF sending measured UE Tx TEG information to TRP)

[0073] When the TRP needs to provide positioning measurements to the LMF, the LMF will send a measurement request message to the TRP, providing an SRS configuration and measurement beam information request. The TRP can schedule the UE to transmit a positioning SRS with configured spatial relationship information (e.g., spatialRelationInfo) to the TRP. For multi-RTT, UL-AoD, and / or UL-TDOA methods, the LMF can send / request SRS configuration information with UE Tx TEG information to the TRP. The TRP can schedule the UE to transmit an SRS according to the SRS configuration with the UE Tx TEG information. The UE Tx TEG information can be a UE Tx TEG ID, which can be configured for each SRS resource or SRS resource set. For example, the UE Tx TEG ID can be configured for each SRS resource in the SRS configuration IE or positioning SRS resource IE in the NRPPa. The TRP can then report UL measurements with the UE Tx TEG information, SRS resource ID, or SRS resource set ID to the LMF.

[0074] (E. Addition of the number of reference TRPs in DL-TDOA)

[0075] In DL-TDOA, the number of reference TRPs can be added. The number of reference TRPs is determined according to the number of UE Rx TEGs. The UE can determine RSTD measurements for different reference TRPs belonging to different UE Rx TEGs. The UE can select to use N different reference RSTD TRPs, where N is the number of UE Rx TEGs. The UE can report N reference RSTD TRPs when reporting measurement results. The RSTD measurement for each measurement element in the measurement report can be calculated between the candidate TRP and the reference TRP. The DL measurements of the candidate TRP and the reference TRP belong to the same Rx TEG.

[0076] For example, the DL-PRS-ID-Info IE may contain two dl-PRS-IDs, i.e., dl-PRS-ID and dl-PRS-second-ID, indicating the presence of two reference TRPs. In the TDOA reporting IE NR-DL-TDOA-SignalMeasurementInformation, if the NR-DL-TDOA-MeasElement contains dl-PRS-ID, it may mean that the RSTD measurement is provided for the first RSTD reference TRP. If the NR-DL-TDOA-MeasElement contains dl-PRS-second-ID, it may mean that the RSTD measurement is provided for the second RSTD reference TRP.

[0077] For another example, a UE may be configured with two DL-PRS-ID-Infos: DL-PRS-ID-Info and DL-PRS-second-ID-Info. When reporting measurement results, the UE may include two dl-PRS-ReferenceInfos: dl-PRS-ReferenceInfo and dl-PRS-second-ReferenceInfo in the NR-DL-TDOA-SignalMeasurementInformation. There may be a one-to-one mapping between the two DL-PRS-ID-Infos. If an NR-DL-TDOA-MeasElement includes dl-PRS-ReferenceInfo, it may mean that the RSTD measurement is provided for the first RSTD reference TRP. If an NR-DL-TDOA-MeasElement includes dl-PRS-second-ReferenceInfo, it may mean that the RSTD measurement is provided for the second RSTD reference TRP.

[0078] In DL-TDOA, the disclosed technology can include multiple reference timings. The UE reports one or more reference timings in a measurement report, and the reference timings are derived from at least one of the TRP, the frequency layer in the TRP, the PRS resource set in the TRP, and the PRS resources in the TRP. The UE can determine multiple reference timings for calculating RSTD measurements. The multiple reference timings can be derived from different TRPs, different frequency layers in the TRP, different PRS resources in the TRP, or different PRS resource sets in the TRP. For example, PRS1 and PRS2 are transmitted from TRP1, and PRS3 and PRS4 are transmitted from TRP2. PRS1 can be selected as the reference timing, and the UE can calculate RSTD measurements between TRP2 and TRP1 such that the starting subframe of received PRS3 or PRS4 is minus the starting subframe of received PRS1. PRS3 (or PRS4) and PRS1 can be in the same UE Rx TEG, so the RSTD measurement will not have any Rx timing error.

[0079] In the report, the UE can report the reference timing. For each RSTD measurement, the UE can report a TRP ID, a PRS resource set ID, or a PRS resource ID as the reference ID. For example, if two PRS resources are selected as the reference timing, the UE reports the PRS resource ID with each RSTD measurement to indicate which PRS resource the RSTD measurement is for, i.e., which reference timing. The UE can also report a reference timing ID to indicate which reference timing the RSTD is derived from. The UE can also report a reference timing ID with the reference TRP and a reference timing ID with a neighboring TRP. The number of reference timings reported can be M, where M is equal to the number of UE Rx TEGs. M can also be requested / indicated by the LMF.

[0080] F. UE reporting of parameters to indicate which RSTD measurements are within the same Rx TEG

[0081] In the DL-TDOA report, the UE may report a parameter indicating whether the RSTD measurements derived from each candidate TRP and reference TRP pair are within the same Rx TEG as the DL measurements at the reference TRP. In other words, the UE may report a parameter indicating whether the DL measurements derived from the candidate TRP are within the same Rx TEG as the DL measurements at the reference TRP.

[0082] For example, the UE reports a parameter with a value of 0 or 1 to indicate whether each RSTD measurement is within the same Rx TEG as the DL measurement at the reference TRP. The parameter can be configured for each measurement element in the measurement report. A value of 0 may mean that the DL measurement of PRS1 from the candidate TRP is not within the same UE Rx TEG as the DL measurement of PRS2 from the reference TRP, and a value of 0 may mean that the DL measurement of PRS1 from the candidate TRP is within the same UE Rx TEG as the DL measurement of PRS2 from the reference TRP.

[0083] Alternatively, in DL-TDOA reporting, the UE can report N groups in the measurement report, where N is equal to the number of UE Rx TEGs. N can also be requested / indicated by the LMF. Each group can contain several measurement elements. RSTD measurements on these measurement elements within the same group are provided by one of the following:

[0084] 1. Provided for the same RSTD reference TRP. Different groups may be associated with different reference TRPs.

[0085] 2. Provided for the same PRS resource or the same set of PRS resources configured in the RSTD reference TRP. Different groups may be associated with different PRS resources or sets of PRS resources.

[0086] In each group, the UE uses the same panel and receives PRS resources from neighboring TRPs and reference TRPs, i.e., the RSTD measurements within a group are within the same Rx TEG.

[0087] (G.UE reports UE Tx TEG information along with DL measurement results to LMF)

[0088] In the multi-RTT method, the UE can report UE Tx TEG information to the LMF along with DL measurement results. The UE Tx TEG information can be a UE Tx TEG ID, an SRS resource ID, and / or an SRS resource set ID. For example, in the multi-RTT method, the UE can report the following:

[0089] 1. SRS resource ID or SRS resource set ID for Rx-Tx time difference measurement in the measurement element.

[0090] 2. A Tx TEG ID along with the Rx-Tx time difference measurement to indicate in which Tx TEG the SRS for that measurement is located.

[0091] 3. Tx TEG ID and SRS resource ID with Rx-Tx time difference measurement to LMF. The configuration may be that the UE reports one or more SRS resources, each associated with a Tx TEG ID. Or, the UE reports several Tx TEG IDs, each associated with one or more SRS resources or SRS resource sets. The SRS resources or SRS resource sets may be for positioning use or for multiple-input multiple-output (MIMO) use.

[0092] For example, if the LMF wants to combine methods such as UL-TDOA or DL-TDOA with differential multi-RTT, the SRSs transmitted by the UE in different TRPs should be within one Tx TEG. The SRS resource or SRS resource set can be for positioning use or for MIMO use.

[0093] (H.PRS resource or SRS QCL'd against SSB)

[0094] In 3GPP Release 16 (R16), the positioning SRS can be QCL'd to PRS resources or SSB. There are four options to implement:

[0095] 1. The SRS is configured to be QCL'd with the PRS associated with the PRS coordinates. This is already supported in R16 NRPPa.

[0096] 2. If the SRS is configured to be QCL'd with the SSB, each SSB can be associated with a coordinate to indicate the geographic coordinate of the Antenna Reference Point (ARP) for the SSB of the TRP. The coordinate can be a geographic coordinate or a relative coordinate.

[0097] 3. If the SRS is configured to be QCL'd with the SSB, the TRP can report UL-RTOA measurements, UL-RSRP measurements, or gNB Rx-Tx time difference measurements to the LMF in addition to the TRP Rx TEG information. The TRP Rx TEG information may include the TRP Rx TEG ID or SRS reception geographic coordinates.

[0098] 4. If the SRS is not configured with a spatial relationship, the TRP may report UL-RTOA measurements, uplink received signal received power (UL-RSRP) measurements, or gNB Rx-Tx time difference measurements to the LMF in addition to the TRP Rx TEG information. The TRP Rx TEG information may include the TRP Rx TEG ID or SRS reception geographic coordinates.

[0099] Conditions 1 and 2 are to ensure that the coordinates of the ARP receiving the SRS and the ARP transmitting the PRS / SSB are the same. Then, in the multi-RTT, UL-TDOA, and / or UL-AoD method, the UE will transmit the SRS to the coordinates where the TRP transmits the PRS or SSB.

[0100] In some embodiments, the UE receives TRP Tx TEG information from the LMF. The UE reports at least one of the following to the LMF along with the DL measurement results: UE Tx TEG information or UE Rx TEG information.

[0101] In some embodiments, the TRP Tx TEG information includes at least one of a TRP Tx TEG ID, a PRS resource ID, or a PRS resource set ID.

[0102] In some embodiments, the UE Tx TEG information includes at least one of a UE Tx TEG ID, an SRS resource ID, or an SRS resource set ID.

[0103] In some embodiments, the UE Rx TEG information includes at least one of a UE Rx TEG ID, a PRS resource ID, or a PRS resource set ID.

[0104] In some embodiments, the UE determines the Rx TEG information according to the TRP Tx information.

[0105] In an embodiment, the UE Rx TEG information includes at least one of a UE Rx TEG ID, a PRS resource ID, and a PRS resource set ID. For example, in DL-TDOA, the PRS resource ID or PRS resource set ID is from the RSTD reference TRP (indicating the PRS or PRS resource set configured in the RSTD reference TRP).

[0106] In some embodiments, the UE receives one or more PRS resource sets configured in the RSTD reference TRP.

[0107] In some embodiments, the UE reports Rx TEG information. For example, in DL-TDOA, the UE reports a parameter to indicate whether the DL measurements from each of the candidate TRPs are within the same Rx TEG as the DL measurements at the reference TRP. As another example, in DL-TDOA, the UE reports N groups in a measurement report, where N is equal to the number of UE Rx TEGs.

[0108] In some embodiments, when an SRS is configured to be QCL'd with SSBs, each SSB is associated with a coordinate.

[0109] In some embodiments, the TRP reports TRP Rx TEG information to the LMF, and the TRP Rx TEG information includes at least one of a TRP Rx TEG ID or an SRS reception geographic coordinate.

[0110] FIG. 4 illustrates a flowchart of an exemplary wireless communication process 400 according to some embodiments. The process 400 is performed by a UE. The process 400 may include the wireless communication device receiving network timing error information from a network (402) and determining UE received TEG information according to the TRP transmitted TEG information (404). The process 400 may also include the wireless communication device determining downlink measurements associated with the UE received TEG information having the same ID as the TRP transmitted TEG information (406), the downlink measurements being derived from downlink resources associated with the TRP transmitted TEG information. The process 400 may include the wireless communication device reporting downlink measurement results and the UE timing error information to the network (408). The network timing error information may include at least one of the TRP transmitted TEG information and the TRP received TEG information. The UE timing error information may include at least one of the UE transmitted TEG information and the UE received TEG information.

[0111] FIG. 5 illustrates a flowchart of an exemplary wireless communication process 500 according to some embodiments. The process 500 is performed by a UE. The process 500 may include the wireless communication device receiving network timing error information from a network (502) and determining UE received TEG information according to the TRP transmitted TEG information (504). The process 500 may also include the wireless communication device determining downlink measurements associated with the UE received TEG information having an ID different from the TRP transmitted TEG information (506), the downlink measurements being derived from downlink resources associated with the TRP transmitted TEG information. The process 500 may include the wireless communication device reporting downlink measurement results and the UE timing error information to the network (508). The network timing error information may include at least one of the TRP transmitted TEG information and the TRP received TEG information. The UE timing error information may include at least one of the UE transmitted TEG information and the UE received TEG information.

[0112] FIG. 6 illustrates a flowchart of an exemplary wireless communication process 600 according to some embodiments. The process 600 is performed by a UE. The process 600 may include the wireless communication device receiving network timing error information from a network (602), and the wireless communication device determining UE received TEG information according to the TRP transmitted TEG information (604). The process 600 may also include the wireless communication device receiving one or more PRS resource sets configured in the RSTD reference TRP (606). The process 600 may include the wireless communication device reporting downlink measurements and UE timing error information to the network (608). The network timing error information may include at least one of the TRP transmitted TEG information and the TRP received TEG information. The UE timing error information may include at least one of the UE transmitted TEG information and the UE received TEG information.

[0113] 7 illustrates a flowchart of an exemplary wireless communication process 700 according to some embodiments. The process 700 is performed by a TRP. The process 700 may include a first network node (e.g., the TRP 304) transmitting network timing error information to a wireless communication device (e.g., the UE 104) (702). The process 700 may include the first network node determining TRP received TEG information according to the UE transmitted TEG information (704). The process 700 may include the first network node transmitting the network timing error information to a second network node (e.g., the LMF 308) (706), and the second network node receiving downlink measurements and the UE timing error information from the wireless communication device (708). The process 700 may include the second network node receiving uplink measurements and the network timing error information from the first network node. The network timing error information comprises at least one of TRP transmit TEG information and TRP receive TEG information, and the UE timing error information includes at least one of UE transmit TEG information and UE receive TEG information (710).

[0114] 8 illustrates a flowchart of an exemplary wireless communication process 800 according to some embodiments. The process 800 is performed by a TRP. The process 800 may include a first network node (e.g., the TRP 304) transmitting network timing error information to a wireless communication device (e.g., the UE 104) (802). The process 800 may include the first network node transmitting one or more PRS resource sets configured in the RSTD-reference TRP to the wireless communication device (804). The process 800 may include the first network node transmitting the network timing error information to a second network node (e.g., the LMF 308) (806), and the second network node receiving downlink measurements and UE timing error information from the wireless communication device (808). The process 800 may include the second network node receiving uplink measurements and the network timing error information from the first network node. The network timing error information includes at least one of TRP transmitted TEG information and TRP received TEG information. The UE timing error information includes at least one of UE transmit TEG information and UE receive TEG information (810).

[0115] 9 illustrates a flowchart of an exemplary wireless communication process 900 according to some embodiments. The process 900 is performed by a TRP. The process 900 may include a first network node (e.g., the TRP 304) transmitting network timing error information to a wireless communication device (e.g., the UE 104) (902). The process 900 may include the first network node or a second network node receiving, from the wireless network communication device, a parameter indicating whether the RSTD measurement is within the same receive TEG of a downlink measurement at a reference TRP (904) in DL-TDOA. The process 900 may include the first network node transmitting the network timing error information to a second network node (e.g., the LMF 308) (906), and the second network node receiving, from the wireless communication device, downlink measurement results and UE timing error information (908). The process 900 may include the second network node receiving, from the first network node, uplink measurement results and network timing error information. The network timing error information includes at least one of TRP transmit TEG information and TRP receive TEG information. The UE timing error information includes at least one of UE transmit TEG information and UE receive TEG information (910).

[0116] 10 illustrates a flowchart of an exemplary wireless communication process 1000 according to some embodiments. The process 1000 is performed by a TRP. The process 1000 may include a first network node (e.g., the TRP 304) transmitting network timing error information to a wireless communication device (e.g., the UE 104) (1002). The process 1000 may include the first network node receiving a number of groups in a measurement report in DL-TDOA. Each group includes RSTD measurements for the same reference TRP (1004). The process 1000 may include a second network node (e.g., the LMF 308) requesting the number (1006). The process 1000 may include the first network node transmitting the network timing error information to a second network node (e.g., the LMF 308) (1008), and the second network node receiving downlink measurement results and UE timing error information from the wireless communication device (1010). The process 1000 can include a second network node receiving, from the first network node, uplink measurements and network timing error information. The network timing error information includes at least one of TRP transmit TEG information and TRP receive TEG information. The UE timing error information includes at least one of UE transmit TEG information and UE receive TEG information (1012).

[0117] 11 illustrates a flowchart of an exemplary wireless communication process 1100 according to some embodiments. The process 1100 is performed by a UE. The process 1100 may include the wireless communication device receiving network timing error information from a network (1102). The network timing error information may include at least one of TRP transmit TEG information and TRP receive TEG information. The process 1100 may also include the wireless communication device reporting downlink measurements and UE timing error information to the network (1104). The UE timing error information may include at least one of UE transmit TEG information and UE receive TEG information.

[0118] FIG. 12 illustrates a flowchart of an exemplary wireless communication process 1200 according to some embodiments. The process 1200 is performed by a TRP. The process 1200 may include a first network node (e.g., the TRP 304) transmitting 1202 network timing error information to a wireless communication device (e.g., the UE 104). The network timing error information includes at least one of TRP transmit TEG information and TRP receive TEG information. The process 1200 may include the first network node transmitting 1204 the network timing error information to a second network node (e.g., the LMF 308). The second network node receives 1206 downlink measurements and UE timing error information from the wireless communication device. The UE timing error information includes at least one of UE transmit TEG information and UE receive TEG information. The process 1000 may include the second network node receiving 1206 uplink measurements and network timing error information from the first network node.

[0119] While various embodiments of the present solution have been described above, it should be understood that they are presented by way of example only, and not by way of limitation. Similarly, various diagrams may depict example architectures or configurations, which are provided to enable those skilled in the art to understand example features and functionality of the present solution. However, such skilled artisans will understand that the present solution is not limited to the example architectures or configurations shown, but can be implemented using various alternative architectures and configurations. In addition, as will be understood by those skilled in the art, one or more features of one embodiment can be combined with one or more features of another embodiment described herein. Thus, the scope and scope of the present disclosure should not be limited by any of the example embodiments described above.

[0120] It should also be understood that any designation of elements herein using designations such as "first," "second," etc., generally does not limit the quantity or order of those elements. Rather, these designations may be used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, the designation of a first and a second element does not imply that only two elements may be employed or that the first element must precede the second element in some manner.

[0121] Additionally, those skilled in the art will understand that information and signals may be represented using any of a variety of different technologies and techniques. For example, the data, instructions, commands, information, signals, bits, and symbols that may be referenced in the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0122] Those skilled in the art will further appreciate that any of the various illustrative logic blocks, modules, processors, means, circuits, methods, and functions described in connection with the aspects disclosed herein may be implemented by electronic hardware (e.g., digital implementations, analog implementations, or a combination of the two), firmware, various forms of programs or design code incorporating instructions (which may be conveniently referred to herein as “software” or “software modules”), or any combination of these techniques. To clearly illustrate this interchangeability of hardware, firmware, and software, the various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware, firmware, or software, or a combination of these techniques, depends on the particular application and design constraints imposed on the overall system. Those skilled in the art may implement the described functionality in various ways for each particular application, but such implementation decisions do not cause a departure from the scope of the present disclosure.

[0123] Furthermore, those skilled in the art will understand that the various illustrative logic blocks, modules, devices, components, and circuits described herein can be implemented in or by integrated circuits (ICs), which may include general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, or any combination thereof. The logic blocks, modules, and circuits can further include antennas and / or transceivers to communicate with various components within a network or device. The general-purpose processor can be a microprocessor, but alternatively, the processor can be any conventional processor, controller, or state machine. The processor can also be implemented as a combination of computing devices, e.g., a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other suitable configuration, to perform the functions described herein.

[0124] If implemented in software, the functions can be stored as one or more instructions or code on a computer-readable medium. Thus, the steps of a method or algorithm disclosed herein can be implemented as software stored on a computer-readable medium. Computer-readable media includes both computer storage media and communication media, including any medium that can enable transfer of a computer program or code from one geographic location to another. A storage medium can be any available medium that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM, or other optical disk storage, magnetic disk storage, or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer.

[0125] As used herein, the term "module" refers to software, firmware, hardware, and any combination of these elements for performing the associated functions described herein. Additionally, for purposes of discussion, various modules are described as discrete modules. However, as will be apparent to one skilled in the art, two or more modules may be combined to form a single module that performs the associated functions according to embodiments of the present solution.

[0126] Additionally, memory or other storage and communication components may be employed in embodiments of the solution. It should be understood that, for purposes of clarity, the above description describes embodiments of the solution with reference to different functional units and processors. However, it will be apparent that any suitable distribution of functionality between different functional units, processing logic elements, or domains may be used without detracting from the solution. For example, functionality illustrated as being performed by separate processing logic elements or controllers may be performed by the same processing logic element or controller. Hence, references to specific functional units do not indicate a strict logical or physical structure or organization, but merely references to suitable means for providing the described functionality.

[0127] Various modifications to the embodiments described in this disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the present disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the novel features and principles disclosed herein, as recited in the following claims.

Claims

1. A wireless communication method, the wireless communication method comprising: A wireless communication device receives, from a network, TRP transmission timing error group (TEG) information of a transmission and reception point (TRP), wherein the TRP transmission TEG information comprises at least one of a TRP transmission TEG identifier (ID) or a positioning reference signal (PRS) resource ID, and the TRP transmission TEG ID is configured by the network for each PRS resource ID of a PRS resource; the wireless communication device transmitting downlink measurement results and user equipment (UE) timing error information to the network, the downlink measurement results comprising UE transmitted TEG IDs of multiple round trip time (RTT) measurements and additional multiple round trip time (RTT) measurements, and the UE timing error information comprising UE transmitted TEG information and UE received TEG information; Including, The UE receiving TEG information is determined according to the TRP transmitting TEG information; The UE transmission TEG information is the UE transmit TEG ID indicating a transmit TEG associated with the downlink measurement result; a sounding reference signal (SRS) resource ID of an SRS resource configured for the downlink measurement result, wherein the UE transmission TEG ID is reported for each SRS resource ID of a PRS resource; and A wireless communication method comprising:

2. 1. A wireless communication device, comprising: the wireless communication device comprises at least one processor and a memory; The at least one processor reading the code from the memory; receiving, from a network, TRP transmission timing error group (TEG) information of a transmitting and receiving point (TRP), the TRP transmission TEG information comprising at least one of a TRP transmission TEG identifier (ID) or a positioning reference signal (PRS) resource ID, the TRP transmission TEG ID being configured by the network for each PRS resource ID of a PRS resource; transmitting downlink measurement results and user equipment (UE) timing error information to the network, wherein the downlink measurement results comprise UE transmitted TEG IDs of multiple round trip time (RTT) measurements and additional multiple round trip time (RTT) measurements, and the UE timing error information comprises UE transmitted TEG information and UE received TEG information; Implementing and The UE receiving TEG information is determined according to the TRP transmitting TEG information; The UE transmission TEG information is the UE transmit TEG ID indicating a transmit TEG associated with the downlink measurement result; a sounding reference signal (SRS) resource ID of an SRS resource configured for the downlink measurement result, wherein the UE transmission TEG ID is reported for each SRS resource ID of a PRS resource; and A wireless communication device comprising:

3. A wireless communication method, the wireless communication method comprising: receiving, by a first network node, a request for sounding reference signal (SRS) configuration information with user equipment (UE) transmission timing error group (TEG) information from a second network node; The first network node transmits Transmission and Reception Point (TRP) transmission TEG information to the second network node, the TRP transmission TEG information comprising at least one of a TRP transmission TEG identifier (ID), a first Positioning Reference Signal (PRS) resource ID, or a first PRS resource set ID, and each TRP transmission TEG ID is transmitted for each PRS resource ID of the PRS resources and for each PRS resource set ID of the PRS resources; the first network node transmitting uplink measurements to the second network node; The first network node sends UE received TEG information, a UE transmitted TEG ID, and an SRS resource ID to the second network node, where the UE transmitted TEG ID is reported for each SRS resource ID of a PRS resource, and the UE received TEG information is determined according to the TRP transmitted TEG information; A wireless communication method comprising:

4. a first network node, the first network node comprises at least one processor and a memory; The at least one processor reading the code from the memory; receiving a request for sounding reference signal (SRS) configuration information with user equipment (UE) transmission timing error group (TEG) information from a second network node; Sending Transmission and Reception Point (TRP) transmission TEG information to the second network node, the TRP transmission TEG information comprising at least one of a TRP transmission TEG identifier (ID), a first Positioning Reference Signal (PRS) resource ID, or a first PRS resource set ID, each TRP transmission TEG ID being sent for each PRS resource ID of the PRS resources and for each PRS resource set ID of the PRS resources; transmitting uplink measurements to the second network node; Sending UE received TEG information, a UE transmitted TEG ID and an SRS resource ID to the second network node, wherein the UE transmitted TEG ID is reported for each SRS resource ID of a PRS resource, and the UE received TEG information is determined according to the TRP transmitted TEG information; Implementing a first network node configured to:

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