WO2023245406A1 - 用于侧行定位的方法、装置、终端设备和网络设备 - Google Patents

用于侧行定位的方法、装置、终端设备和网络设备 Download PDF

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Publication number
WO2023245406A1
WO2023245406A1 PCT/CN2022/100049 CN2022100049W WO2023245406A1 WO 2023245406 A1 WO2023245406 A1 WO 2023245406A1 CN 2022100049 W CN2022100049 W CN 2022100049W WO 2023245406 A1 WO2023245406 A1 WO 2023245406A1
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Prior art keywords
terminal device
positioning
message
configuration information
anchor point
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PCT/CN2022/100049
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English (en)
French (fr)
Inventor
于新磊
刘洋
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Oppo广东移动通信有限公司
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Priority to PCT/CN2022/100049 priority Critical patent/WO2023245406A1/zh
Publication of WO2023245406A1 publication Critical patent/WO2023245406A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present application relates to the field of communication technology, and more specifically, to a method, device, terminal equipment and network equipment for lateral positioning.
  • the location information of the target terminal device can be determined based on the measurement of the side-link positioning reference signal between the target terminal device and the anchor terminal device to achieve side-link positioning.
  • part of the anchor terminal device and the target terminal device are located within the network coverage, and part are located outside the network coverage.
  • the configuration of the side-link positioning reference signals used by the anchor terminal device and the target terminal device is not controlled by the network side, it may cause conflicts in the side-link positioning reference signal configurations of other surrounding terminal devices.
  • This application provides a method, device, terminal equipment and network equipment for lateral positioning. Each aspect involved in this application is introduced below.
  • a method for side-line positioning including: a first terminal device sending a first message to a network device, where the first message includes first positioning configuration information for side-line positioning; wherein, The first terminal device is one of multiple terminal devices participating in the lateral positioning, and the first terminal device is located within network coverage, and any of the multiple terminal devices except the first terminal device Some or all of the terminal devices are outside the network coverage.
  • a method for sideline positioning including: a network device receiving a first message sent by a first terminal device, where the first message includes first positioning configuration information for sideline positioning; wherein , the first terminal device is one of multiple terminal devices participating in the side row positioning, and the first terminal device is located within the coverage of the network. Among the multiple terminal devices, except the first terminal device Some or all of the terminal devices are outside the network coverage.
  • a device for lateral positioning is provided.
  • the device is configured on a first terminal device.
  • the device includes: a first sending unit configured to send a first message to a network device.
  • the first The message includes first positioning configuration information for side positioning; wherein the first terminal device is one of multiple terminal devices participating in the side positioning, and the first terminal device is located within network coverage, Some or all of the plurality of terminal devices except the first terminal device are located outside network coverage.
  • a device for lateral positioning is provided.
  • the device is configured on a network device.
  • the device includes: a first receiving unit configured to receive a first message sent by a first terminal device.
  • a message includes first positioning configuration information for side positioning; wherein the first terminal device is one of multiple terminal devices participating in the side positioning, and the first terminal device is located within network coverage , some or all of the plurality of terminal devices except the first terminal device are located outside the network coverage.
  • a terminal device including a processor, a memory, and a communication interface.
  • the memory is used to store one or more computer programs.
  • the processor is used to call the computer program in the memory so that the terminal The device performs some or all of the steps of the method of the first aspect.
  • a network device including a processor, a memory, and a communication interface.
  • the memory is used to store one or more computer programs.
  • the processor is used to call the computer program in the memory so that the network The device performs some or all of the steps of the method of the second aspect.
  • embodiments of the present application provide a communication system, which includes the above-mentioned terminal device and/or network device.
  • the system may also include other devices that interact with the terminal device or network device in the solution provided by the embodiments of the present application.
  • embodiments of the present application provide a computer-readable storage medium that stores a computer program, and the computer program causes a terminal to perform some or all of the steps in the methods of the above aspects.
  • embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause the terminal to execute each of the above. Some or all of the steps in a method.
  • the computer program product can be a software installation package.
  • embodiments of the present application provide a chip, which includes a memory and a processor.
  • the processor can call and run a computer program from the memory to implement some or all of the steps described in the methods of the above aspects.
  • the first terminal device located within the network coverage sends the first positioning configuration information to the network device so that the network device can determine whether the first positioning configuration information needs to be updated, which is beneficial to reducing or This prevents subsequent use of the first positioning configuration information to perform side-line positioning causing configuration conflicts with other terminal devices.
  • Figure 1 is a system architecture diagram of a communication system to which embodiments of the present application can be applied.
  • Figure 2 is a schematic diagram of positioning measurement based on the communication system shown in Figure 1.
  • Figure 3 is a flow chart that uses Multi-RTT as an example to introduce a method of providing positioning services for terminal devices.
  • Figure 4 is an example diagram of a side communication scenario within network coverage.
  • Figure 5 is an example diagram of a side communication scenario with partial network coverage.
  • Figure 6 is an example diagram of a sidelink communication scenario outside the network coverage.
  • Figure 7 is an example diagram of lateral positioning provided by an embodiment of the present application.
  • Figure 8 is an example diagram of lateral positioning provided by another embodiment of the present application.
  • Figure 9 is a flowchart of a method for lateral positioning provided by an embodiment of the present application.
  • Figure 10 is a flow chart of a method for lateral positioning provided by another embodiment of the present application.
  • Figure 11 is a flowchart of a method for lateral positioning provided by yet another embodiment of the present application.
  • Figure 12 is a schematic structural diagram of a device for lateral positioning provided by an embodiment of the present application.
  • Figure 13 is a schematic structural diagram of a device for lateral positioning provided by another embodiment of the present application.
  • Figure 14 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 1 is an example system architecture diagram of a wireless communication system 100 to which embodiments of the present application can be applied.
  • the wireless communication system 100 may include a network device 110 and a terminal device 120.
  • the network device 110 may be a device that communicates with the terminal device 120 .
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the wireless communication system 100 may include multiple network devices 110 and/or other numbers of terminal devices 120 .
  • the one or more terminal devices 120 may all be located within the network coverage, or they may all be located outside the network coverage, or part of the terminal devices 120 may be located within the network coverage and the other part may be located outside the network coverage. , the embodiment of the present application does not limit this.
  • the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • 5G fifth generation
  • NR new radio
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • the terminal equipment in the embodiment of this application may also be called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT) ), remote station, remote terminal, mobile device, user terminal, wireless communications equipment, user agent or user device.
  • the terminal device in the embodiment of the present application may be a device that provides voice and/or data connectivity to users, and may be used to connect people, things, and machines, such as handheld devices and vehicle-mounted devices with wireless connection functions.
  • the terminal device in the embodiment of the present application can be a mobile phone (mobile phone), a tablet computer (Pad), a notebook computer, a handheld computer, a mobile internet device (mobile internet device, MID), a wearable device, a vehicle, an industrial control (industrial) Wireless terminals in control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, and transportation safety Wireless terminals, wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • the terminal device may act as a scheduling entity that provides sidelink signals between terminal devices in vehicle-to-everything (V2X) or device-to-device communication (D2D), etc.
  • V2X vehicle-to-everything
  • D2D device-to-device communication
  • the terminal device can be used to act as a base station.
  • the network device in the embodiment of the present application may be a device used to communicate with a terminal device.
  • the network device involved in this application may refer to an access network device or a wireless access network device.
  • the network device may be a base station.
  • the network device involved in this application may refer to a core network device or a device located in the core network.
  • the network device may be a positioning device in the core network.
  • the base station in the embodiment of this application may refer to a radio access network (radio access network, RAN) node (or device) that connects terminal equipment to a wireless network.
  • RAN radio access network
  • a base station can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area.
  • the base station can broadly cover various names as follows, or be replaced with the following names, such as: Node B (NodeB), evolved base station (evolved NodeB, eNB), next generation base station (next generation NodeB, gNB), relay station, Access point, transmission point (transmitting and receiving point, TRP), transmitting point (TP), main station MeNB, secondary station SeNB, multi-standard wireless (MSR) node, home base station, network controller, access node , wireless node, access point (AP), transmission node, transceiver node, base band unit (BBU), radio remote unit (Remote Radio Unit, RRU), active antenna unit (active antenna unit) , AAU), radio head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning node, etc.
  • NodeB Node B
  • eNB evolved base station
  • next generation NodeB next generation NodeB, gNB
  • relay station Access point
  • the base station may be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof.
  • a base station may also refer to a communication module, modem or chip used in the aforementioned equipment or devices.
  • the base station can also be a mobile switching center and a device that performs base station functions in device-to-device D2D, V2X, and machine-to-machine (M2M) communications, a network-side device in a 6G network, and a base station in future communication systems. Functional equipment, etc.
  • Base stations can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific equipment form used by the network equipment.
  • Base stations can be fixed or mobile.
  • a helicopter or drone may be configured to act as a mobile base station, and one or more cells may move based on the mobile base station's location.
  • a helicopter or drone may be configured to serve as a device that communicates with another base station.
  • the positioning device in the embodiment of the present application can be used to determine the location information of the terminal device.
  • the positioning device may be located in the core network.
  • the positioning device may also be called a positioning server or a positioning management device.
  • the positioning device can be a location management function (LMF).
  • LMF location management function
  • the positioning device can be a location management unit (LMU), a location management center (LMC) or an evolved serving mobile location center (E-SMLC).
  • LMU location management unit
  • LMC location management center
  • E-SMLC evolved serving mobile location center
  • the positioning device can also be other network elements, nodes or devices used to determine the location information of the terminal device.
  • it can be a network element or node used to determine the location information of the terminal device in a future communication system.
  • the embodiment of this application does not specifically limit the name of the positioning device.
  • the wireless communication system 100 may include one or more network devices 110. It should be understood that when the wireless communication system 100 includes multiple network devices 110, the multiple network devices 110 may include base stations or positioning devices. , for example, the plurality of network devices 110 may include one positioning device and one base station, or may include one positioning device and multiple base stations, etc.
  • the terminal device being located within the network coverage area or being located outside the network coverage area may mean that the terminal equipment is located within the network coverage area of the base station or being located outside the network coverage area of the base station.
  • the network device in the embodiment of this application may refer to a CU or a DU, or the network device includes a CU and a DU.
  • gNB can also include AAU.
  • Network equipment and terminal equipment can be deployed on land, indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and satellites in the sky. In the embodiments of this application, the scenarios in which network devices and terminal devices are located are not limited.
  • the network device 110 in the wireless communication system 100 includes multiple base stations 110a (three are taken as an example in Figure 2) and a positioning device 110b.
  • the terminal device 120 and/or the base station 110a sends a reference signal according to a known configuration pattern.
  • the terminal device 120 sends a sounding reference signal (SRS), or the base station 110a sends a positioning reference signal (positioning reference signal). , PRS).
  • SRS sounding reference signal
  • PRS positioning reference signal
  • the base station 110a and/or the terminal device 120 measure the SRS and/or PRS according to the known configuration pattern to obtain relevant information of the positioning measurement.
  • the third step is to collect the relevant information of these positioning measurements to the terminal device 120 or the positioning device 110b to perform positioning and obtain the final positioning result.
  • the base station is used as an anchor point to determine the location of the terminal device.
  • Positioning in the communication system 100 may include multiple positioning methods. Examples include upward positioning and downward positioning.
  • Some communication systems (such as NR systems) perform downlink positioning based on PRS.
  • PRS also known as downlink positioning reference signal (DL-PRS)
  • DL-PRS downlink positioning reference signal
  • the terminal device 120 can first measure the PRS sent by the base station 110a (the base station of the serving cell and the base station of the neighboring cell), and estimate relevant information of the positioning measurement. Then, the terminal device 120 may report the relevant information of the positioning measurement as the measurement result of the PRS to the positioning device 110b.
  • the positioning device 110b can calculate the position of the terminal device 120 based on the positioning measurement related information reported by the terminal device 120, thereby obtaining the position information of the terminal device 120. For example, the positioning device 110b can calculate the location information of the terminal device 120 based on the trilateration method or the triangulation method.
  • Some communication systems perform uplink positioning based on SRS.
  • the SRS signal used for positioning may also be called a positioning SRS signal or an uplink SRS signal. This embodiment of the present application does not distinguish this.
  • the terminal device 120 sends SRS.
  • the base station 110a (the base station of the serving cell and the base station of the neighboring cell) can obtain the measurement result according to the SRS sent by the terminal device 120.
  • the measurement results of the SRS may include information related to positioning measurements. Then, the base station 110a may send the relevant information of the positioning measurement to the positioning device 110b.
  • the positioning device 110b can calculate the position of the terminal device 120 based on the positioning measurement related information reported by the base station 110a, thereby obtaining the position information of the terminal device 120. For example, the positioning device 110b can calculate the location information of the terminal device 120 based on the trilateration method or the triangulation method.
  • the above-mentioned positioning measurement related information may include one or more of the following information: time information, distance information, power information, and angle information. More specifically, the relevant information of the positioning measurement may include one or more of the following information: time difference of arrival (TDOA), angle difference of arrival (ADOA), reference signal received power ( reference signal receive power, RSRP), etc.
  • TDOA time difference of arrival
  • ADOA angle difference of arrival
  • RSRP reference signal received power
  • the positioning methods in the communication system can also include TDOA positioning, angle of arrival (angle of arrival, AOA) positioning, ADOA positioning, angle of departure (angle of departure, AOD) positioning, multi-round trip time ( Multi-round trip time, Multi-RTT) positioning, enhanced cell identification (enhanced cell-ID, E-CID) positioning, etc., the embodiments of the present application are not limited to this.
  • messages between the terminal device 120 and the positioning device 110b, and/or messages between the base station 110a and the positioning device 110b may be transmitted through a positioning protocol.
  • the positioning protocol can be understood as a high-level protocol, including, for example, LTE positioning protocol (LPP) and/or new radio positioning protocol (NRPP).
  • LPP LTE positioning protocol
  • NRPP new radio positioning protocol
  • messages between the terminal device 120 and the positioning device 110b may be transmitted through LPP signaling
  • messages between the base station 110a and the positioning device 110b may be transmitted through NRPP signaling.
  • Figure 3 takes the Multi-RTT positioning method as an example to introduce a method of providing positioning services for terminal devices.
  • the positioning device is an LMF.
  • the base station and the LMF exchange (exchange) the configuration information of the downlink PRS according to the positioning protocol, for example, exchange the configuration information of the downlink PRS through an NRPP copy (NRPP annex, NRPPa).
  • NRPP annex NRPP annex, NRPPa
  • Positioning capability interaction is performed between the terminal device and the LMF.
  • the positioning capability interaction may be that the LMF requests the positioning capability of the terminal device, and the terminal device reports the positioning capability to the LMF after receiving the positioning capability request message.
  • the LMF requests the base station for positioning information to obtain the uplink SRS configuration information of the terminal device.
  • the LMF may request the base station of the serving cell of the terminal device for positioning information of the base station through NRPPa signaling.
  • the base station should consider the transmission characteristics when configuring uplink SRS transmission for the terminal.
  • the base station determines the uplink SRS configuration information allocated to the terminal device, and sends the uplink SRS configuration information to the terminal device.
  • the base station returns the positioning information of the base station to the LMF.
  • the positioning information returned by the base station to the LMF includes the configuration information of the uplink SRS of the terminal device.
  • LMF activates the terminal equipment to transmit SRS.
  • 306 may include 306a-306c.
  • the LMF sends a positioning activation request message to the base station, requesting to activate the terminal device to transmit SRS;
  • the base station activates the terminal device to transmit SRS;
  • the base station sends a positioning activation request message to the LMF. Locate the response message to the activation request message.
  • the LMF sends a measurement request to the base station, requiring the base station to measure the SRS sent by the terminal device.
  • the LMF provides positioning assistance data to the terminal device and sends a positioning measurement request to the terminal device.
  • the terminal equipment and the base station perform positioning measurements respectively. Among them, the terminal equipment measures the downlink PRS sent by the base station, and the base station measures the uplink SRS sent by the terminal equipment.
  • the terminal equipment and the base station report the measurement results to the LMF respectively.
  • the terminal device can report the measurement results to the LMF through ProvideLocationInformation msg.
  • the LMF sends a positioning deactivation message to the base station.
  • both the base station and the terminal device perform positioning measurements, so that the LMF can calculate a more accurate positioning of the terminal device.
  • the base station configures uplink SRS resources for the terminal device, and then in step 306a, the network activates the terminal device to transmit SRS.
  • the LMF notifies the adjacent base stations of the SRS resource configuration of the terminal equipment through the NRPPa measurement request, and requires each base station to measure the SRS sent by the terminal equipment.
  • each base station collects the measurements they collected. Results are reported to LMF.
  • the network first sends the unique downlink PRS configuration information of each base station to the terminal equipment, and then activates the terminal to perform downlink measurement. Finally, in step 311, the terminal equipment will The measurement results are sent to the LMF via LPP.
  • the reference signals sent by different terminal equipment or base stations should maintain orthogonality. In this way, it can be ensured that the signals measured by all parties in the system come from a fixed point, thereby ensuring that the reference signals Configuration uniqueness, this guarantee is fundamental for positioning estimation.
  • orthogonality can be ensured in at least one of the time domain, frequency domain, and code domain.
  • the configuration information of the downlink PRS is provided by the positioning device to the terminal device through positioning protocol signaling.
  • the configuration information of the downlink PRS can be provided by the LMF to the terminal device through LPP signaling.
  • the parameter configuration of downlink PRS can adopt a four-layer signaling structure.
  • the four-layer signaling structure can be expressed from the top to the bottom as: positioning frequency layer (positioning frequency layer, PFL), TRP, downlink PRS resource set (PRS resource set) , and downlink PRS resource (PRS resource).
  • a maximum of 4 PFL downlink PRS configurations can be provided for one terminal device.
  • the terminal equipment is configured with multiple TRPs to send downlink PRS signals at the same frequency point.
  • the PRS parameters configured in each PFL can be applied to all PRS resources included in this PFL.
  • Each PFL can include up to 64 TRPs, and each TRP can be configured with one or two downlink PRS resource sets. The one or two downlink PRS resource sets configure all downlink signals sent by this TRP at a certain frequency point.
  • PRS resources. Multiple downlink PRS resources can be configured in each downlink PRS resource set.
  • Each downlink PRS resource can represent a transmission beam of a TRP, and different downlink PRS resources can represent different transmission beams of this TRP.
  • the parameter structure of each PFL may include one or more of the following downlink PRS signal configuration parameters: subcarrier spacing of the downlink PRS signal, cyclic prefix (CP) length of the downlink PRS signal, downlink PRS The frequency domain resource bandwidth, the frequency domain reference point of the downlink PRS signal, the frequency domain starting frequency position of the downlink PRS resource, and the comb tooth size of the downlink PRS signal Comb-N.
  • the above downlink PRS parameters configured in each PFL can be applied to all downlink PRS resources included in this PFL.
  • all downlink PRS signals from multiple different TRPs will use the same subcarrier spacing and CP length, the same comb tooth size, be sent on the same frequency subband, and occupy exactly the same bandwidth.
  • Such a design can support terminal equipment to receive and measure downlink PRS signals from multiple different TRPs at the same frequency point at the same time.
  • the parameters of the TRP layer may include an identification parameter used to uniquely identify the positioning TRP, for example, it may be the physical cell identifier (PCI) of this TRP; or it may be the cell global identifier (cell global identifier) of this TRP.
  • PCI physical cell identifier
  • CGI such as NR Cell Global Identity (NCGI); or, it can also be the absolute radio frequency channel number (ARFCN) of this TRP.
  • ARFCN absolute radio frequency channel number
  • Up to two downlink PRS resource sets can be configured in each TRP layer. These parameters can be applied to all downlink PRS resources included in this resource set.
  • the downlink PRS resource set layer parameter can be configured with one or more of the following parameters: downlink PRS resource set identification, downlink PRS transmission cycle and time slot offset, downlink PRS resource repetition factor, downlink PRS resource repeated transmission time interval, muting configuration of downlink PRS, and the number of OFDM symbols occupied by downlink PRS resources.
  • downlink PRS resource configuration layer configure one or more of the following parameters for each downlink PRS resource: downlink PRS resource identification, downlink PRS sequence ID, downlink PRS starting frequency domain resource unit offset, The resource slot offset of the downlink PRS, the OFDM symbol offset of the downlink PRS, and the quasi co-location information (Quasi Co-Location, QCL) of the downlink PRS.
  • the configuration information of the positioning SRS signal can be provided to the terminal device by the base station of the serving cell, for example, through high-layer signaling (such as radio resource control (RRC) signaling).
  • RRC radio resource control
  • positioning SRS signals can be configured in the same way as multiple-input multi-output SRS (MIMO SRS) signals.
  • MIMO SRS multiple-input multi-output SRS
  • a terminal device can be configured with one or more positioning SRS signal resource sets.
  • a positioning SRS signal resource set may contain one or more positioning SRS signal resources. Compared with the MIMO SRS signal, the biggest difference between the positioning SRS signal is that the positioning SRS signal needs to be sent to the TRP of the non-serving cell, so that multiple TRPs can measure the uplink positioning measurement value of the same terminal device and calculate the terminal.
  • positioning SRS signals inherit all time domain transmission behaviors supported by MIMO SRS signals.
  • the positioning SRS signal supports periodic transmission, semi-persistent transmission and aperiodic transmission.
  • the MAC layer control element MAC CE
  • the aperiodic positioning SRS signal can be triggered by downlink control information (DCI) for transmission.
  • Sidelink communication refers to communication technology based on sidelinks.
  • Sideline communication may be D2D or V2X, for example.
  • Communication data in traditional cellular systems is received or sent between terminal devices and network devices, while sideline communication supports direct transmission of communication data between terminal devices.
  • sideline communication supports direct transmission of communication data between terminal devices.
  • direct transmission of communication data between terminal devices can have higher spectrum efficiency and lower transmission delay.
  • the Internet of Vehicles system uses side-travel communication technology.
  • side-link communication can be divided into side-link communication within network coverage (in-coverage, IC) and side-link communication with partial network coverage (partial coverage). communications, and sideline communications outside of network coverage (out-of-coverage, OOC).
  • FIG 4 is an example diagram of a side-link communication scenario within network coverage.
  • both terminal devices 120a are within the coverage of the network device 110. Therefore, both terminal devices 120a can receive the configuration information of the network device 110 (the configuration information in this application can also be replaced by configuration signaling), and determine the side row configuration according to the configuration information of the network device 110. After both terminal devices 120a are configured for sidelink, sidelink communication can be performed on the sidelink link.
  • FIG. 5 is an example diagram of a sidelink communication scenario with partial network coverage.
  • the terminal device 120a and the terminal device 120b perform side-line communication.
  • the terminal device 120a is located within the coverage of the network device 110, so the terminal device 120a can receive the configuration information of the network device 110 and determine the side row configuration according to the configuration information of the network device 110.
  • the terminal device 120b is located outside the network coverage and cannot receive the configuration information of the network device 110.
  • the terminal device 120b may be configured according to the pre-configuration information and/or the information carried in the physical sidelink broadcast channel (PSBCH) sent by the terminal device 120a located within the network coverage. Determine side row configuration. After both the terminal device 120a and the terminal device 120b perform sidelink configuration, sidelink communication can be performed on the sidelink link.
  • PSBCH physical sidelink broadcast channel
  • FIG. 6 is an example diagram of a sidelink communication scenario outside the network coverage.
  • both terminal devices 120b are located outside the network coverage.
  • both terminal devices 120b can determine the side row configuration according to the preconfiguration information.
  • sidelink communication can be performed on the sidelink link.
  • the terminal device can be used as the anchor point.
  • the terminal device as the anchor point can be called an anchor point.
  • Terminal equipment (anchor UE) the terminal equipment whose position needs to be determined is called target terminal equipment (target UE, which can also be called the terminal equipment under test).
  • target UE which can also be called the terminal equipment under test.
  • the anchor terminal device has a similar role to the base station (or TRP), and both can serve as anchor points.
  • the system can perform measurements on the S-PRS sent by the target terminal device through the anchor terminal device, or the target terminal device can perform measurements on the S-PRS sent by the anchor terminal device, combined with the anchor terminal device. With the location information, the system can complete the positioning of the target terminal device.
  • both the target terminal device and the anchor terminal device used for side-link positioning are connected to the communication system (for example, 5G system).
  • the configuration of the sidelink positioning reference signal (S-PRS) for sidelink positioning can be configured by network equipment (such as base stations and/or positioning equipment in the core network). That is to say, in the scenario of sidelink communication within network coverage, the configuration of S-PRS can be managed and controlled by the network side.
  • the possible options are as follows: (1) The S-PRS of the anchor terminal device can be controlled by the positioning device (such as , LMF) control, the S-PRS of the target terminal equipment can be controlled by the base station (such as gNB).
  • the S-PRS of the anchor terminal equipment is similar to the downlink PRS in the NR system
  • the S-PRS of the target terminal equipment PRS is similar to the uplink SRS in NR systems.
  • the S-PRS of the anchor terminal equipment and the target terminal equipment are both controlled by the base station.
  • the S-PRS of the anchor terminal device and the target terminal device are both controlled by the positioning device.
  • both the anchor terminal device and the target terminal device are in a state of no connection with the communication system (for example, 5G system). In this case, the anchor terminal device and the target terminal device are not connected.
  • the configuration of S-PRS used by the target terminal device to perform side-line positioning is not controlled by the network device.
  • part of the anchor terminal device and the target terminal device are located within the network coverage, and some are located outside the network coverage.
  • the S-PRS configuration used by the anchor terminal device and the target terminal device to perform lateral positioning is not controlled by the network device, it may cause S-PRS configuration conflicts with other surrounding terminal devices, especially It causes conflicts with terminal equipment located at the edge of the cell within the network coverage.
  • the network coverage status of the target terminal device or the anchor terminal device may change from the network coverage. If the configuration of the side-link positioning reference signal used by the target terminal device and the anchor terminal device is not controlled by the network side at this time, it may cause side-link positioning reference signal configurations to other surrounding terminal devices. conflict.
  • embodiments of the present application provide a method, device, terminal equipment and network equipment for lateral positioning.
  • the technical solutions provided by the embodiments of this application can be applied to sideline positioning in partial network coverage scenarios.
  • Multiple terminal devices participate in side-line positioning in a scenario with partial network coverage.
  • the multiple terminal devices include a target terminal device that performs positioning operations and multiple anchor point terminal devices. According to the measurement results of the target terminal device or anchor point devices, The measurement results of the point terminal device are combined with the location information of the anchor terminal device to determine the location of the target terminal device.
  • the positioning methods used for lateral positioning of the plurality of terminal devices may include a variety of methods, which are not limited in the embodiments of the present application.
  • the positioning methods used for lateral positioning may include TDOA positioning, AOA positioning, AOD positioning, Multi-RTT positioning, E-CID positioning, etc.
  • the positioning method used for side row positioning may include a positioning method in which the target terminal device sends a positioning reference signal and a positioning method in which the anchor terminal device sends a positioning reference signal.
  • the terminal device located within the network coverage may be the target terminal device.
  • the network coverage status of the target terminal device changes from being outside the network coverage to being within the network coverage.
  • the terminal device located within the network coverage may also be an anchor terminal device, which is not limited in the embodiment of the present application.
  • Figure 9 is a schematic flowchart of a method for lateral positioning provided by an embodiment of the present application. The method in Figure 9 is described from the perspective of interaction between the first terminal device and the network device.
  • the first terminal device is one of multiple terminal devices participating in side-line positioning, and the first terminal device is located within network coverage. Except for the first terminal device, other terminal devices in the plurality of terminal devices may be partially or entirely outside the network coverage. That is to say, some or all of the plurality of terminal devices except the first terminal device are located outside the network coverage.
  • the first terminal device may be the terminal device 120a shown in FIG. 5 .
  • the first terminal device may be a target terminal device to obtain the location information of the first terminal device through side positioning.
  • the first terminal device may be an anchor terminal device, so as to determine the location information of the target terminal device using the first terminal device and other anchor terminal devices.
  • the network device mentioned in the embodiment of the present application may refer to, for example, a base station or a designated positioning device, which is not limited in the embodiment of the present application.
  • the base station when the network device is a base station, the base station can be a gNB; when the network device is a positioning device, the positioning device can be an LMF.
  • the network device may be the network device 110 shown in FIGS. 1-5.
  • terminal equipment and network equipment please refer to the previous section and will not be repeated here.
  • the first terminal device sends a first message to the network device.
  • the signaling types used to carry the first message may include multiple types, such as positioning protocol signaling (such as LPP signaling), RRC signaling, MAC CE signaling, etc.
  • positioning protocol signaling such as LPP signaling
  • RRC signaling such as RRC signaling
  • MAC CE signaling such as MAC CE
  • the first terminal device can send the first message through LPP signaling.
  • the network device as a base station the first terminal device can send the first message through RRC dedicated signaling, MAC CE signaling, etc.
  • the first message includes first positioning configuration information.
  • the first positioning configuration information may be used for lateral positioning.
  • the first positioning configuration information may include positioning configuration information corresponding to the target terminal device and/or positioning configuration information corresponding to the anchor terminal device.
  • the first positioning configuration information may include positioning configuration information corresponding to the anchor terminal device, for example, including the first terminal The positioning configuration information corresponding to the device and the positioning configuration information corresponding to other anchor terminal devices; if the first terminal device is the receiver of the positioning reference signal, the first positioning configuration information may include the positioning configuration information corresponding to the target terminal device.
  • the first positioning configuration information may include positioning configuration information corresponding to the target terminal device; if the first terminal device is the positioning reference signal Referring to the receiver of the signal, the first positioning configuration information may include positioning configuration information corresponding to the anchor terminal device, for example, positioning configuration information corresponding to each anchor terminal device that performs side-line positioning together with the first terminal device.
  • the first positioning configuration information may include S-PRS configuration information.
  • the S-PRS configuration information may include S-PRS parameter configuration.
  • the embodiment of this application does not specifically limit the parameter configuration of S-PRS.
  • the parameter configuration of S-PRS can adopt a four-layer signaling structure, such as a structure obtained by equivalent conversion with reference to the four-layer signaling structure of downlink PRS. Or it can be other signaling structures.
  • the first message may also contain other information.
  • the first message may also include one or more of the following information: identification information of multiple terminal devices; positioning methods adopted by multiple terminal devices.
  • the identification information of multiple terminal devices may include identification information of the target terminal device and/or identification information of the anchor terminal device.
  • the first message may include identification information of multiple anchor terminal devices, so that the network side knows which anchor terminal devices correspond to the first positioning configuration information.
  • the first message may include identification information of the target terminal device and identification information of other anchor terminal devices except the first terminal device.
  • the positioning method used by multiple terminal devices may be any of the positioning methods listed above for side-line positioning, such as AOA positioning. It should be understood that the positioning method used may also be other positioning methods, and this application is not limited thereto.
  • the sending of the first message may be event-triggered.
  • the sending of the first message may be triggered based on one or more of the following events. An exemplary description of these events follows.
  • the first event the network coverage status of the first terminal device changes from being outside the network coverage to being within the network coverage. For example, when the first terminal device moves from outside the network coverage to within the network coverage, or when the network coverage status of the first terminal device changes to within the network coverage due to the improvement of channel quality, the first terminal device can be triggered. The sending of a message. As a specific example, multiple terminal devices (including the first terminal device) themselves are located outside the network coverage. After negotiating the first positioning configuration information, they can perform side positioning based on the first positioning configuration information. Due to mobility or When the channel quality becomes better and the network coverage state of the first terminal device among the plurality of terminal devices changes to being within the network coverage range, the first event is triggered and the first terminal device sends the first message to the network device.
  • the value of the downlink path loss measured by the first terminal device is less than the first threshold.
  • the first terminal equipment can be allowed to measure the reference signal receiving power (RSRP) of the downlink path loss reference signal of the nearest base station. If the measured RSRP of the downlink path loss reference signal is greater than a certain The threshold value means that the value of the downlink path loss measured by the first terminal device is less than the first threshold value.
  • RSRP reference signal receiving power
  • the first terminal device located within the network coverage sends the first positioning configuration information to the network device so that the network device can determine whether the first positioning configuration information needs to be updated, which is beneficial to reducing or This prevents subsequent use of the first positioning configuration information to perform side-line positioning causing configuration conflicts with other terminal devices.
  • the first positioning configuration information may include positioning configuration information corresponding to the anchor terminal device.
  • the first positioning configuration information may include positioning configuration information corresponding to multiple anchor terminal devices.
  • the first terminal device when the first terminal device is an anchor terminal device, and there are multiple anchor terminal devices that perform positioning operations, the first terminal device may be understood to be the first anchor terminal among the multiple anchor terminal devices.
  • the first positioning configuration information may also include positioning configuration information corresponding to the second anchor point terminal device among the plurality of anchor point terminal devices.
  • the first positioning configuration information may include positioning configuration information corresponding to the first terminal device and positioning configurations corresponding to other anchor terminal devices except the first terminal device. information.
  • the first anchor point terminal device since the first anchor point terminal device only knows the positioning configuration information corresponding to itself but does not know the positioning configuration information corresponding to the second anchor point terminal device, when the first terminal device is the first anchor point terminal device, the second anchor point terminal device Before an anchor point terminal device sends the first positioning configuration information to the network device, it also needs to obtain the positioning configuration information corresponding to the second anchor point terminal device.
  • the embodiment of the present application does not limit the method of obtaining the positioning configuration information corresponding to the second anchor terminal device.
  • each anchor point terminal device considering that each anchor point terminal device has a side link established with the target terminal device, when the first anchor point terminal device needs to obtain the positioning configuration information corresponding to the second anchor point terminal device, it can use Acquisition of the side link between the first anchor terminal device and the target terminal device means that the first anchor terminal device can request the positioning configuration information corresponding to the second anchor terminal device from the target terminal device.
  • the first anchor terminal device may request the positioning configuration information of the second anchor terminal device from the target terminal device through sideline dedicated signaling.
  • the first anchor point terminal device and the second anchor point terminal device can be directly connected through the link.
  • the sidelink between the terminal devices is used to obtain the positioning configuration information corresponding to the second anchor point terminal device.
  • the second anchor point terminal device can broadcast its own corresponding positioning configuration information.
  • the first anchor point terminal device can obtain the positioning configuration information by receiving the positioning configuration information broadcast by the second anchor point terminal device. Positioning configuration information corresponding to the second anchor point terminal device.
  • the network device After receiving the first message sent by the first terminal device, the network device can determine, based on the first positioning configuration information in the first message, whether multiple terminal devices using the first positioning configuration information to perform side-line positioning will affect the configuration of the network.
  • the positioning configuration information corresponding to other terminal devices conflicts.
  • the method provided by the embodiment of the present application may further include step S920.
  • the network device sends a second message to the first terminal device, where the second message is used to indicate whether the first terminal device updates the first positioning configuration information.
  • Step S920 is introduced in detail below.
  • the second message may be carried in different signaling.
  • the second message when the network device is a base station, the second message can be carried in RRC signaling or MAC CE signaling; when the network device is a positioning device, the second message can be carried in positioning protocol signaling (such as LPP signaling).
  • the signaling carrying the second message and the signaling carrying the first message may be of the same type, for example, both are LPP signaling, or both are RRC signaling.
  • the signaling carrying the second message and the signaling carrying the first message may be of different types.
  • the signaling carrying the second message is RRC signaling
  • the signaling carrying the first message is MAC. CE signaling.
  • the second message is used to instruct the first terminal device to continue using the first positioning configuration information. That is to say, the second message may be used to indicate not to update the first positioning configuration information.
  • the second message may be a positive confirmation message, used to feed back the confirmation message to the first terminal device to instruct the first terminal device to continue using the first positioning configuration information.
  • the second message may include the first positioning configuration information. After receiving the second message, the first terminal device may continue to use the first positioning configuration information. The positioning configuration information in the second message is still the first positioning configuration information, and may also be used to indicate that the first positioning configuration information is not updated.
  • the first terminal device can use the first positioning configuration with other terminal devices among the plurality of terminal devices. information to perform the subsequent lateral positioning process.
  • the second message may be used to indicate updating the first positioning configuration information.
  • the second message may include second positioning configuration information.
  • the second positioning configuration information may be different from the first positioning configuration information, and may be understood as the updated first positioning configuration information.
  • the second message may also include other information, which is not limited in the embodiments of the present application.
  • the second message may also include identification information of the candidate anchor terminal device and/or the candidate positioning method. That is to say, in addition to updating the first positioning configuration information, the network device can also configure other available candidate anchor point terminal devices, positioning methods, etc.
  • the first terminal device may also send a response message to the second message to the network device.
  • the response message to the second message may be used to indicate that the first message has been completed. Updates to positioning configuration information.
  • the third message may also be sent to one or more second terminal devices.
  • the third message may be used to instruct the one or more second terminal devices to perform side positioning based on the second positioning configuration information.
  • the one or more second terminal devices can be understood as terminal devices that are ultimately selected by the target terminal device to participate in side positioning after the network device sends the second message.
  • the second terminal device may be one of multiple terminal devices included in the first message, or may be one of the candidate anchor terminal devices indicated by the network device in the second message.
  • the anchor terminal device among the plurality of terminal devices included in the first message may be called the existing anchor terminal device
  • the candidate anchor terminal device indicated by the network device in the second message may be called New anchor terminal device.
  • the one or more second terminal devices may include candidate anchor point terminal devices (new anchor point terminal devices), or may include existing anchor point terminal devices. That is to say, when the network device indicates a candidate anchor terminal device, the target terminal device can choose between the existing anchor terminal device and the new anchor terminal device indicated by the network device, and reselect an appropriate anchor terminal device.
  • Point terminal equipment is used for lateral positioning.
  • the one or more second terminal devices are all anchor terminal devices.
  • the one or more second terminal devices may all be existing anchor terminal devices.
  • the one or more second terminal devices may all be candidate anchor terminal devices.
  • the one or more second terminal devices may include both existing anchor terminal devices and candidate anchor terminal devices.
  • the one or more second terminal devices include both the target terminal device and the anchor terminal device.
  • the anchor terminal devices in the one or more second terminal devices may all be existing anchor terminal devices.
  • the anchor terminal devices in the one or more second terminal devices may all be candidate anchor terminal devices.
  • the anchor terminal device in the one or more second terminal devices may include both an existing anchor terminal device and a candidate anchor terminal device.
  • the embodiments of the present application do not specifically limit the criteria for the target terminal device to select the anchor terminal device that ultimately participates in lateral positioning from existing anchor terminal devices and candidate anchor terminal devices.
  • the target terminal device can select a suitable anchor terminal device for side positioning based on one or more of the following criteria: whether there is a global navigation satellite system (GNSS) clock synchronization, side positioning Whether the RSRP meets the threshold, whether there is a direct path, etc.
  • GNSS global navigation satellite system
  • the second message may also include candidate positioning methods.
  • the positioning method of side row positioning adopted by the first terminal device and the one or more second terminal devices may include the candidate positioning method.
  • the candidate positioning method indicated in the second message is TDOA positioning
  • the positioning method for side row positioning adopted by the first terminal device and the one or more second terminal devices may be TDOA positioning.
  • the embodiments of the present application are not limited thereto.
  • the positioning method of side row positioning adopted by the first terminal device and the one or more second terminal devices may be other methods besides the candidate positioning methods.
  • it may be It is the positioning method originally planned to be used by multiple terminal devices, such as the positioning method indicated in the first message (such as AOA positioning).
  • the one or more second terminal devices may also send a response message to the third message to the first terminal device.
  • the response message of the third message may be used to instruct the one or more second terminal devices to confirm using the second positioning configuration information for sideline positioning.
  • the second terminal device is an anchor terminal device.
  • the first terminal device is also an anchor terminal device
  • the message is transmitted between the first terminal device and the second terminal device (for example, the third message or the response message of the third message)
  • the third message and/or the response of the third message Messages can be transmitted in a variety of ways.
  • each anchor point terminal device has a side link established with the target terminal device
  • the first anchor point terminal device and the second anchor point terminal device can transmit messages through the third anchor point terminal device.
  • Sidelink transmission between an anchor terminal device and a target terminal device that is, the first anchor terminal device can send a third message to the target terminal device, and the target terminal device forwards the third message to the second anchor terminal device. message; or, the second anchor point terminal device sends a response message of the third message to the target terminal device, and the target terminal device forwards the response message of the third message to the first anchor point terminal device.
  • the first anchor point terminal device and the second anchor point terminal device can be directly connected through the link. sidelink transmission.
  • the first terminal device is the target terminal device, and the first terminal device is the sender of S-PRS.
  • the first terminal device and the three anchor terminal devices (anchor terminal device 1, anchor terminal device 2 and anchor terminal device 3) are originally located outside the network coverage.
  • the three anchor terminal devices are used to communicate with the first terminal device.
  • the terminal device performs lateral positioning.
  • the first terminal device has been configured with a positioning reference signal (eg S-PRS).
  • S-PRS positioning reference signal
  • step S1010 when the network coverage status of the first terminal device changes from being outside the network coverage to being within the network coverage, the first terminal device sends a first message to the network device and sends the first positioning configuration information to the network device.
  • the first positioning configuration information includes configuration information of the S-PRS being used by the first terminal device.
  • the first terminal device can indirectly deduce that the first terminal device is within the network coverage based on the measured RSRP of the downlink path loss of the nearest base station being higher than a certain threshold.
  • the first terminal device may send the first positioning configuration information to the network device through RRC dedicated signaling, MAC CE signaling, LPP signaling, etc.
  • the first positioning configuration information may also include identification information of the three anchor terminal devices participating in positioning, the positioning method used, etc.
  • step S1020 the network device determines whether the first positioning configuration information will cause conflict with the S-PRS of other terminal devices configured by the network.
  • step S1030 the network device sends the second message to the first terminal device.
  • the second message is used to instruct the first terminal device to continue to use the first positioning configuration information.
  • the second message may be a feedback confirmation message. After the first terminal device receives the feedback confirmation message, the process ends. Subsequently, the first terminal device may perform lateral positioning with the three anchor point terminal devices based on the first positioning configuration information.
  • the second message is used to indicate the second positioning configuration information to the first terminal device, and the second positioning configuration information can be understood It is the updated positioning configuration information.
  • the second positioning configuration information may include new S-PRS configuration information.
  • the second message may also indicate identification messages of other available candidate anchor point terminal devices, candidate positioning methods, and the like.
  • the second message may be sent to the first terminal device through RRC dedicated signaling, MAC CE signaling, LPP signaling, etc.
  • the first terminal device sends a third message to one or more second terminal devices.
  • the third message is used to instruct the one or more second terminal devices to perform side positioning based on the second positioning configuration information.
  • the one or more second terminal devices may be three existing anchor terminal devices (anchor terminal device 1, anchor terminal device 2, and anchor terminal device 3).
  • anchor terminal device 1, anchor terminal device 2, and anchor terminal device 3 anchor terminal device 1, anchor terminal device 2, and anchor terminal device 3.
  • the first terminal device can notify the existing anchor terminal device of the second positioning configuration information.
  • the first terminal device can send the second positioning configuration information to the second terminal device through side-line dedicated signaling; or the first terminal device can carry the second positioning configuration information in the broadcast so that the second terminal device can receive it. Second positioning configuration information.
  • the first terminal device may select among the existing anchor terminal devices and the candidate anchor terminal devices indicated by the network device. , reselect the appropriate anchor terminal device for lateral positioning.
  • the first terminal device may use one of the candidate positioning methods indicated by the network device to perform subsequent side positioning.
  • step S1050 one or more second terminal devices send a response message of the third message to the first terminal device to confirm the configuration update.
  • step S1060 the first terminal device sends a response message to the second message to the network device to confirm that the update of the first positioning configuration information is completed.
  • step S1070 the first terminal device and the finally selected anchor point terminal device perform a lateral positioning process according to the second positioning configuration information.
  • the first terminal device is the anchor terminal device, and the first terminal device is the sender of S-PRS.
  • the first terminal device anchor terminal device 1
  • the target terminal device and the other two anchor terminal devices were originally located outside the network coverage.
  • the target terminal device and the three Anchor terminal equipment is used to perform lateral positioning.
  • the first terminal device and the other two anchor terminal devices have been configured with positioning reference signals (eg S-PRS).
  • Example 2 will be described in detail below with reference to Figure 11.
  • step S1110 when the network coverage status of the first terminal device changes from being outside the network coverage to being within the network coverage, the first terminal device sends a first message to the network device, sending the first positioning configuration information being used. to network equipment.
  • the first positioning configuration information includes configuration information of S-PRS being used by the first terminal device and the other two anchor point terminal devices.
  • the first terminal device may request the target terminal device for the configuration information of the S-PRS being used by the other two anchor point terminal devices through side-line dedicated signaling, or may request the other two anchor terminal devices through side-line dedicated signaling.
  • the point terminal device directly requests it, or it can be obtained by receiving the S-PRS configuration information broadcast by the other two anchor terminal devices.
  • the first terminal device may indirectly deduce that the first terminal device is within the network coverage based on the measured RSRP of the downlink path loss of the nearest base station being higher than a certain threshold.
  • the first terminal device may send the first positioning configuration information to the network device through RRC dedicated signaling, MAC CE signaling, LPP signaling, etc.
  • the first positioning configuration information may also include identification information of the target terminal device, identification information of the other two anchor terminal devices, the positioning method adopted, etc.
  • step S1120 the network device determines whether the first positioning configuration information will cause conflict with the S-PRS of other terminal devices configured by the network.
  • step S1130 the network device sends the second message to the first terminal device.
  • the second message is used to instruct the first terminal device to continue to use the first positioning configuration information.
  • the second message may be a feedback confirmation message. After the first terminal device receives the feedback confirmation message, the process ends. Subsequently, the first terminal device can perform side positioning with the target terminal device and the other two anchor point terminal devices.
  • the second message is used to indicate the second positioning configuration information to the first terminal device, and the second positioning configuration information can be understood It is the updated positioning configuration information.
  • the second positioning configuration information may include new S-PRS configuration information.
  • the second message may also indicate identification messages of other available candidate anchor point terminal devices, candidate positioning methods, and the like.
  • the second message may be sent to the first terminal device through RRC dedicated signaling, MAC CE signaling, LPP signaling, etc.
  • the first terminal device sends a third message to one or more second terminal devices.
  • the third message is used to instruct the one or more second terminal devices to perform side positioning based on the second positioning configuration information.
  • the one or more second terminal devices may be the target terminal device and two other anchor terminal devices (anchor terminal device 2 and anchor terminal device 3).
  • anchor terminal device 2 and anchor terminal device 3 anchor terminal device 2 and anchor terminal device 3.
  • the first terminal device can notify the target terminal device and the existing anchor terminal device of the second positioning configuration information.
  • the first terminal device can forward the second positioning configuration information through the target terminal device; or, the first terminal device can directly forward the second positioning configuration information to the second terminal device through sideline dedicated signaling. Send the second positioning configuration information; or, the first terminal device can carry the second positioning configuration information in the broadcast, so that the second terminal device receives the second positioning configuration information.
  • the target terminal device may select among the existing anchor terminal devices and the candidate anchor terminal devices indicated by the network device, Re-select the appropriate anchor terminal device for lateral positioning.
  • the first terminal device may use one of the candidate positioning methods indicated by the network device to perform subsequent side positioning.
  • step S1150 one or more second terminal devices send a response message of the third message to the first terminal device to confirm the configuration update.
  • step S1160 the first terminal device sends a response message to the second message to the network device to confirm that the update of the first positioning configuration information is completed.
  • step S1170 the first terminal device and the finally selected anchor point terminal device perform a side positioning process according to the second positioning configuration information.
  • Figure 12 is a schematic structural diagram of a device for lateral positioning provided by an embodiment of the present application.
  • the device 1200 shown in Figure 12 is configured on a first terminal device.
  • the first terminal device is one of multiple terminal devices participating in sideline positioning, and the first terminal device is located within the network coverage. Except for the first terminal device, Some or all terminal devices other than the first terminal device are located outside the network coverage.
  • the device 1200 of FIG. 12 may include a first sending unit 1210.
  • the first sending unit 1210 may be configured to send a first message to the network device, where the first message includes first positioning configuration information for sideline positioning.
  • the plurality of terminal devices include a target terminal device that performs a positioning operation and a plurality of anchor terminal devices
  • the first terminal device is a first anchor terminal device among the plurality of anchor terminal devices
  • the first positioning configuration information includes positioning configuration information corresponding to a second anchor point terminal device among the plurality of anchor point terminal devices.
  • the positioning configuration information corresponding to the second anchor terminal device is obtained through a side link between the first anchor terminal device and the target terminal device; or, the second anchor terminal device
  • the positioning configuration information corresponding to the point terminal device is obtained through the side link between the first anchor point terminal device and the second anchor point terminal device.
  • the sending of the first message is triggered based on one or more of the following events: the network coverage status of the first terminal device is converted from being outside the network coverage to being within the network coverage; The value of the downlink path loss measured by the first terminal device is less than the first threshold.
  • the device 1200 further includes a first receiving unit 1220.
  • the first receiving unit 1220 may be configured to receive a second message sent by the network device, where the second message is used to indicate whether the first terminal device updates the first positioning configuration information.
  • the second message is used to instruct the first terminal device to continue using the first positioning configuration information.
  • the second message includes one or more of the following information: second positioning configuration information for side row positioning; identification information of candidate anchor terminal devices; and candidate positioning methods.
  • the apparatus 1200 further includes: a second sending unit, configured to send a third message to one or more second terminal devices, where the third message is used to instruct the one or more second terminal devices based on the The second positioning configuration information is used to perform lateral positioning.
  • a second sending unit configured to send a third message to one or more second terminal devices, where the third message is used to instruct the one or more second terminal devices based on the The second positioning configuration information is used to perform lateral positioning.
  • the one or more second terminal devices include the candidate anchor terminal device; and/or the side row positioning adopted by the first terminal device and the one or more second terminal devices
  • the positioning methods include the candidate positioning methods.
  • the apparatus 1200 further includes: a second receiving unit, configured to receive a response message of the third message sent by the one or more second terminal devices, where the response message of the third message is used to indicate that the The one or more second terminal devices confirm using the second positioning configuration information to perform lateral positioning.
  • a second receiving unit configured to receive a response message of the third message sent by the one or more second terminal devices, where the response message of the third message is used to indicate that the The one or more second terminal devices confirm using the second positioning configuration information to perform lateral positioning.
  • the plurality of terminal devices include a target terminal device that performs a positioning operation and a plurality of anchor terminal devices, where the first terminal device is a first anchor terminal device among the plurality of anchor terminal devices.
  • the second terminal device is a second anchor point terminal device among the plurality of anchor point terminal devices
  • the third message and/or the response message to the third message is sent through the first
  • the third message and/or the response message of the third message is transmitted through the side link between the anchor terminal device and the target terminal device; or the third message and/or the response message of the third message is transmitted between the first anchor terminal device and the target terminal device.
  • Sidelink transmission between the second anchor point terminal devices are examples of the third message and/or the response message to the third message.
  • the apparatus 1200 further includes: a third sending unit, configured to send a response message to the second message to the network device, where the response message to the second message is used to indicate that the first positioning configuration has been completed. Information updates.
  • the first message also includes one or more of the following information: identification information of the plurality of terminal devices; positioning methods adopted by the plurality of terminal devices.
  • the first positioning configuration information includes configuration information of side-link positioning reference signals.
  • Figure 13 is a schematic structural diagram of a device for lateral positioning provided by another embodiment of the present application.
  • the device 1300 shown in Figure 13 is configured on a network device, such as a base station or positioning device.
  • the apparatus 1300 may include a first receiving unit 1310.
  • the first receiving unit 1310 may be configured to receive a first message sent by a first terminal device, where the first message includes first positioning configuration information for side row positioning; wherein the first terminal device is participating in the side row positioning.
  • One of the plurality of terminal devices located in the row, and the first terminal device is located within the network coverage area, and some or all of the plurality of terminal devices except the first terminal device are located within the network coverage area. outside.
  • the plurality of terminal devices include a target terminal device that performs a positioning operation and a plurality of anchor terminal devices
  • the first terminal device is a first anchor terminal device among the plurality of anchor terminal devices
  • the first positioning configuration information includes positioning configuration information corresponding to a second anchor point terminal device among the plurality of anchor point terminal devices.
  • the positioning configuration information corresponding to the second anchor terminal device is obtained through a side link between the first anchor terminal device and the target terminal device; or, the second anchor terminal device
  • the positioning configuration information corresponding to the point terminal device is obtained through the side link between the first anchor point terminal device and the second anchor point terminal device.
  • the sending of the first message is triggered based on one or more of the following events: the network coverage status of the first terminal device is converted from being outside the network coverage to being within the network coverage; The value of the downlink path loss measured by the first terminal device is less than the first threshold.
  • the device 1300 further includes a first sending unit 1320.
  • the first sending unit 1320 may be configured to send a second message to the first terminal device, where the second message is used to indicate whether the first terminal device updates the first positioning configuration information.
  • the second message is used to instruct the first terminal device to continue using the first positioning configuration information.
  • the second message includes one or more of the following information: second positioning configuration information for side row positioning; identification information of candidate anchor terminal devices; and candidate positioning methods.
  • the apparatus 1300 further includes: a second receiving unit, configured to receive a response message to the second message sent by the first terminal device, where the response message to the second message is used to indicate that the first message has been completed. Update certain bit configuration information.
  • the first message also includes one or more of the following information: identification information of the plurality of terminal devices; positioning methods adopted by the plurality of terminal devices.
  • the first positioning configuration information includes configuration information of side-link positioning reference signals.
  • Figure 14 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the dashed line in Figure 14 indicates that the unit or module is optional.
  • the device 1400 can be used to implement the method described in the above method embodiment.
  • Device 1400 may be a chip, terminal device or network device.
  • Apparatus 1400 may include one or more processors 1410.
  • the processor 1410 can support the device 1400 to implement the method described in the foregoing method embodiments.
  • the processor 1410 may be a general-purpose processor or a special-purpose processor.
  • the processor may be a central processing unit (CPU).
  • the processor can also be another general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), or an off-the-shelf programmable gate array (FPGA) Or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA off-the-shelf programmable gate array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • Apparatus 1400 may also include one or more memories 1420.
  • the memory 1420 stores a program, which can be executed by the processor 1410, so that the processor 1410 executes the method described in the foregoing method embodiment.
  • the memory 1420 may be independent of the processor 1410 or integrated in the processor 1410.
  • Apparatus 1400 may also include a transceiver 1430.
  • Processor 1410 may communicate with other devices or chips through transceiver 1430.
  • the processor 1410 can transmit and receive data with other devices or chips through the transceiver 1430.
  • An embodiment of the present application also provides a computer-readable storage medium for storing a program.
  • the computer-readable storage medium can be applied in the terminal or network device provided by the embodiments of the present application, and the program causes the computer to execute the methods performed by the terminal or network device in various embodiments of the present application.
  • An embodiment of the present application also provides a computer program product.
  • the computer program product includes a program.
  • the computer program product can be applied in the terminal or network device provided by the embodiments of the present application, and the program causes the computer to execute the methods performed by the terminal or network device in various embodiments of the present application.
  • An embodiment of the present application also provides a computer program.
  • the computer program can be applied to the terminal or network device provided by the embodiments of the present application, and the computer program causes the computer to execute the methods performed by the terminal or network device in various embodiments of the present application.
  • the "instruction" mentioned may be a direct instruction, an indirect instruction, or an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B. relation.
  • B corresponding to A means that B is associated with A, and B can be determined based on A.
  • determining B based on A does not mean determining B only based on A.
  • B can also be determined based on A and/or other information.
  • the term "correspondence” can mean that there is a direct correspondence or indirect correspondence between the two, or it can also mean that there is an association between the two, or it can also mean indicating and being instructed, configuring and being configured, etc. relation.
  • predefinition or “preconfiguration” can be achieved by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices).
  • devices for example, including terminal devices and network devices.
  • predefined can refer to what is defined in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, which may include, for example, LTE protocol, NR protocol, and related protocols applied in future communication systems. This application does not limit this.
  • the size of the sequence numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its functions and internal logic, and should not be determined by the implementation process of the embodiments of the present application. constitute any limitation.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • the available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs (DVD)) or semiconductor media (e.g., solid state disks (SSD) )wait.
  • magnetic media e.g., floppy disks, hard disks, magnetic tapes
  • optical media e.g., digital video discs (DVD)
  • semiconductor media e.g., solid state disks (SSD)

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Abstract

提供了一种用于侧行定位的方法、装置、终端设备和网络设备。该方法包括：第一终端设备向网络设备发送第一消息，第一消息包括用于侧行定位的第一定位配置信息；其中，第一终端设备为参与侧行定位的多个终端设备之一，且第一终端设备位于网络覆盖范围内，多个终端设备中的除第一终端设备之外的部分或全部终端设备位于网络覆盖范围外。在部分网络覆盖范围的场景下进行侧行定位时，位于网络覆盖范围内的第一终端设备向网络设备发送第一定位配置信息，以便网络设备判断是否需要更新第一定位配置信息，有利于减少或避免后续使用第一定位配置信息执行侧行定位对其他终端设备造成配置冲突。

Description

用于侧行定位的方法、装置、终端设备和网络设备 技术领域
本申请涉及通信技术领域，并且更为具体地，涉及一种用于侧行定位的方法、装置、终端设备和网络设备。
背景技术
在侧行通信的场景中，可以基于目标终端设备和锚点终端设备之间对侧行定位参考信号的测量来确定目标终端设备的位置信息，实现侧行定位。
在部分网络覆盖的场景下进行侧行定位时，锚点终端设备和目标终端设备有一部分位于网络覆盖范围内，有一部分位于网络覆盖范围外。这种情况下，如果锚点终端设备和目标终端设备使用的侧行定位参考信号的配置不受网络侧的控制，那么可能会对周围其他终端设备造成侧行定位参考信号配置的冲突。
发明内容
本申请提供一种用于侧行定位的方法、装置、终端设备和网络设备。下面对本申请涉及的各个方面进行介绍。
第一方面，提供了一种用于侧行定位的方法，包括：第一终端设备向网络设备发送第一消息，所述第一消息包括用于侧行定位的第一定位配置信息；其中，所述第一终端设备为参与所述侧行定位的多个终端设备之一，且所述第一终端设备位于网络覆盖范围内，所述多个终端设备中的除所述第一终端设备之外的部分或全部终端设备位于网络覆盖范围外。
第二方面，提供了一种用于侧行定位的方法，包括：网络设备接收第一终端设备发送的第一消息，所述第一消息包括用于侧行定位的第一定位配置信息；其中，所述第一终端设备为参与所述侧行定位的多个终端设备之一，且所述第一终端设备位于网络覆盖范围内，所述多个终端设备中的除所述第一终端设备之外的部分或全部终端设备位于网络覆盖范围外。
第三方面，提供了一种用于侧行定位的装置，所述装置配置于第一终端设备，所述装置包括：第一发送单元，用于向网络设备发送第一消息，所述第一消息包括用于侧行定位的第一定位配置信息；其中，所述第一终端设备为参与所述侧行定位的多个终端设备之一，且所述第一终端设备位于网络覆盖范围内，所述多个终端设备中的除所述第一终端设备之外的部分或全部终端设备位于网络覆盖范围外。
第四方面，提供了一种用于侧行定位的装置，所述装置配置于网络设备，所述装置包括：第一接收单元，用于接收第一终端设备发送的第一消息，所述第一消息包括用于侧行定位的第一定位配置信息；其中，所述第一终端设备为参与所述侧行定位的多个终端设备之一，且所述第一终端设备位于网络覆盖范围内，所述多个终端设备中的除所述第一终端设备之外的部分或全部终端设备位于网络覆盖范围外。
第五方面，提供了一种终端设备，包括处理器、存储器以及通信接口，所述存储器用于存储一个或多个计算机程序，所述处理器用于调用所述存储器中的计算机程序使得所述终端设备执行第一方面的方法中的部分或全部步骤。
第六方面，提供了一种网络设备，包括处理器、存储器、通信接口，所述存储器用于存储一个或多个计算机程序，所述处理器用于调用所述存储器中的计算机程序使得所述网络设备执行第二方面的方法中的部分或全部步骤。
第七方面，本申请实施例提供了一种通信系统，该系统包括上述的终端设备和/或网络设备。在另一种可能的设计中，该系统还可以包括本申请实施例提供的方案中与该终端设备或网络设备进行交互的其他设备。
第八方面，本申请实施例提供了一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序使得终端执行上述各个方面的方法中的部分或全部步骤。
第九方面，本申请实施例提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使终端执行上述各个方面的方法中的部分或全部步骤。在一些实现方式中，该计算机程序产品可以为一个软件安装包。
第十方面，本申请实施例提供了一种芯片，该芯片包括存储器和处理器，处理器可以从存储器中调用并运行计算机程序，以实现上述各个方面的方法中所描述的部分或全部步骤。
在部分网络覆盖的场景下进行侧行定位时，位于网络覆盖范围内的第一终端设备向网络设备发送第一定位配置信息，以便网络设备判断是否需要更新第一定位配置信息，有利于减少或避免后续使用第 一定位配置信息执行侧行定位对其他终端设备造成配置冲突。
附图说明
图1是可应用本申请实施例的通信系统的系统架构图。
图2是基于图1所示的通信系统进行定位测量的示意图。
图3是以Multi-RTT为例介绍为终端设备提供定位服务的方法的流程图。
图4是网络覆盖范围内的侧行通信的场景示例图。
图5是部分网络覆盖的侧行通信的场景示例图。
图6是网络覆盖范围外的侧行通信的场景示例图。
图7是本申请一实施例提供的侧行定位的示例图。
图8是本申请另一实施例提供的侧行定位的示例图。
图9是本申请一实施例提供的用于侧行定位的方法的流程图。
图10是本申请另一实施例提供的用于侧行定位的方法的流程图。
图11是本申请又一实施例提供的用于侧行定位的方法的流程图。
图12是本申请一实施例提供的用于侧行定位的装置的结构示意图。
图13是本申请另一实施例提供的用于侧行定位的装置的结构示意图。
图14是本申请实施例提供的通信装置的示意性结构图。
具体实施方式
通信系统架构
图1是可应用本申请实施例的无线通信系统100的系统架构示例图。该无线通信系统100可以包括网络设备110和终端设备120。网络设备110可以是与终端设备120通信的设备。
图1示例性地示出了一个网络设备和两个终端设备，可选地，该无线通信系统100可以包括多个网络设备110和/或其他数量的终端设备120。针对一个或多个终端设备120，该一个或多个终端设备120可以均位于网络覆盖范围内，也可以均位于网络覆盖范围外，也可以一部分位于网络覆盖范围内，另一部分位于网络覆盖范围外，本申请实施例对此不作限定。
可选地，该无线通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例的技术方案可以应用于各种通信系统，例如：第五代(5th generation，5G)系统或新无线(new radio，NR)系统、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)等。本申请提供的技术方案还可以应用于未来的通信系统，如第六代移动通信系统，又如卫星通信系统，等等。
本申请实施例中的终端设备也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台(mobile station，MS)、移动终端(mobile Terminal，MT)、远方站、远程终端、移动设备、用户终端、无线通信设备、用户代理或用户装置。本申请实施例中的终端设备可以是指向用户提供语音和/或数据连通性的设备，可以用于连接人、物和机，例如具有无线连接功能的手持式设备、车载设备等。本申请的实施例中的终端设备可以是手机(mobile phone)、平板电脑(Pad)、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备、车辆、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。例如，终端设备可以充当调度实体，其在车辆外联(vehicle-to-everything，V2X)或设备到设备通信(device-to-device，D2D)等中的终端设备之间提供侧行链路信号。比如，蜂窝电话和汽车利用侧行链路信号彼此通信。蜂窝电话和智能家居设备之间通信，而无需通过基站中继通信信号。可选地，终端设备可以用于充当基站。
本申请实施例中的网络设备可以是用于与终端设备通信的设备。在一些实施例中，本申请涉及的网络设备可以是指接入网设备或无线接入网设备，如网络设备可以是基站。在一些实施例中，本申请涉及的网络设备可以是指核心网设备或位于核心网中的设备，如网络设备可以是核心网中的定位设备。
本申请实施例中的基站可以是指将终端设备接入到无线网络的无线接入网(radio access network，RAN)节点(或设备)。基站可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。基站可以广义的覆盖如下中的各种名称，或与如下名称进行替换，比如：节点B(NodeB)、演进型基站(evolved NodeB，eNB)、下一代基站(next generation NodeB，gNB)、中继站、接入点、传输点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、主站MeNB、 辅站SeNB、多制式无线(MSR)节点、家庭基站、网络控制器、接入节点、无线节点、接入点(access piont，AP)、传输节点、收发节点、基带单元(base band unit，BBU)、射频拉远单元(Remote Radio Unit，RRU)、有源天线单元(active antenna unit，AAU)、射频头(remote radio head，RRH)、中心单元(central unit，CU)、分布式单元(distributed unit，DU)、定位节点等。基站可以是宏基站、微基站、中继节点、施主节点或类似物，或其组合。基站还可以指用于设置于前述设备或装置内的通信模块、调制解调器或芯片。基站还可以是移动交换中心以及设备到设备D2D、V2X、机器到机器(machine-to-machine，M2M)通信中承担基站功能的设备、6G网络中的网络侧设备、未来的通信系统中承担基站功能的设备等。基站可以支持相同或不同接入技术的网络。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。
基站可以是固定的，也可以是移动的。例如，直升机或无人机可以被配置成充当移动基站，一个或多个小区可以根据该移动基站的位置移动。在其他示例中，直升机或无人机可以被配置成用作与另一基站通信的设备。
本申请实施例中的定位设备可以用于确定终端设备的位置信息。该定位设备可以位于核心网。在一些实施例中，定位设备也可以称为定位服务器或定位管理设备。以NR系统为例，定位设备可以是定位管理功能(location management function，LMF)。以其他通信系统为例，定位设备可以是定位管理单元(location management unit，LMU)，定位管理中心(location management center，LMC)或演进服务移动位置中心(evolved serving mobile location center，E-SMLC)。可以理解的是，定位设备还可以是其他用于确定终端设备的位置信息的网元、节点或设备，如可以是未来的通信系统中的用于确定终端设备的位置信息的网元或节点，本申请实施例对定位设备的名称不作具体限定。
前文提及，无线通信系统100可以包括一个或多个网络设备110，应理解，无线通信系统100包括多个网络设备110时，该多个网络设备110中既可以包括基站，也可以包括定位设备，例如，该多个网络设备110可以包括一个定位设备和一个基站，或者可以包括一个定位设备和多个基站等。
应该理解，在一些实施例中，终端设备位于网络覆盖范围内或位于网络覆盖范围外可以是指，终端设备位于基站的网络覆盖范围内或位于基站的网络覆盖范围外。
在一些部署中，本申请实施例中的网络设备可以是指CU或者DU，或者，网络设备包括CU和DU。gNB还可以包括AAU。
网络设备和终端设备可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在空中的飞机、气球和卫星上。本申请实施例中对网络设备和终端设备所处的场景不做限定。
通信系统中的定位技术
参见图2，无线通信系统100中的网络设备110包括多个基站110a(图2中以三个为例)和一个定位设备110b。进行定位时，可以大概分成三个过程。第一步，终端设备120和/或基站110a根据已知的配置式样发送参考信号，例如，终端设备120发送探测参考信号(sounding reference signal，SRS)，或基站110a发送定位参考信号(positioning reference signal，PRS)。第二步，基站110a和/或终端设备120再根据已知的配置样式对SRS和/或PRS进行测量，获取到定位测量的相关信息。第三步，将这些定位测量的相关信息汇总到终端设备120或定位设备110b执行定位，获取最终定位结果。在该过程中，是以基站作为锚点来确定终端设备的位置。
通信系统100中的定位可以包括多种定位方式。例如包括上行定位和下行定位。某些通信系统(如NR系统)基于PRS进行下行定位。PRS也可称为下行定位参考信号(downlink positioning reference signal，DL-PRS)，是用于定位功能的一种参考信号。例如，在下行定位过程中，终端设备120首先可以测量基站110a(服务小区的基站和邻区的基站)发送的PRS，并估计出定位测量的相关信息。然后，终端设备120可以将定位测量的相关信息作为PRS的测量结果上报至定位设备110b。定位设备110b可以根据终端设备120上报的定位测量相关信息对终端设备120的位置进行解算，从而得到终端设备120的位置信息。例如，定位设备110b可以基于三边定位法或三角定位法，计算终端设备120的位置信息。
某些通信系统(如NR系统)基于SRS进行上行定位，用于定位的SRS信号也可以称为定位SRS信号，或上行SRS信号，本申请实施例对此不进行区分。例如，在上行定位过程中，终端设备120发送SRS。基站110a(服务小区的基站和邻区的基站)可以根据终端设备120发送的SRS，得到测量结果。该SRS的测量结果可以包括定位测量的相关信息。然后，基站110a可以将定位测量的相关信息发送至定位设备110b。定位设备110b可以根据基站110a上报的定位测量相关信息对终端设备120的位置进行解算，从而得到终端设备120的位置信息。例如，定位设备110b可以基于三边定位法或三角定位法，计算终端设备120的位置信息。
上述定位测量的相关信息可以包括以下信息中的一种或多种：时间信息、距离信息、功率信息、角度信息。更为具体地，定位测量的相关信息可以包括以下信息中的一种或多种：到达时间差(time  difference of arrival，TDOA)、到达角度差(angle difference of arrival，ADOA)、参考信号接收功率(reference signal receive power，RSRP)等。
按照定位测量的相关信息的不同，通信系统中的定位方式还可以包括TDOA定位、到达角(angle of arrival，AOA)定位、ADOA定位、离开角(angle of departure，AOD)定位、多往返时间(multi-round trip time，Multi-RTT)定位、增强的小区标识(enhanced cell-ID，E-CID)定位等，本申请实施例对此并不限定。
在无线通信系统100中，终端设备120和定位设备110b之间的消息，和/或，基站110a和定位设备110b之间的消息可以通过定位协议传输。定位协议可以理解为是一种高层的协议，例如包括LTE定位协议(LTE positioning protocol，LPP)和/或新空口定位协议(new radio positioning protocol，NRPP)。示例性地，终端设备120和定位设备110b之间的消息可以通过LPP信令传输，基站110a和定位设备110b之间的消息可以通过NRPP信令传输。
图3以Multi-RTT这一定位方式为例，介绍为终端设备提供定位服务的一种方法。在图3的示例中，定位设备为LMF。
301，基站和LMF根据定位协议交换(exchange)下行PRS的配置信息，例如通过NRPP副本(NRPP annex，NRPPa)交换下行PRS的配置信息。
302，终端设备和LMF之间进行定位能力交互。定位能力交互可以是LMF请求终端设备定位能力，终端设备收到定位能力请求消息后向LMF上报定位能力。
303，LMF向基站请求基站的定位信息，以获取终端设备的上行SRS的配置信息。可选地，LMF可以通过NRPPa信令向终端设备的服务小区的基站请求基站的定位信息。可选地，如果该请求消息中包括请求的上行SRS的传输特征，则基站在为终端配置上行SRS传输时应考虑该传输特征。
304，基站确定分配给终端设备的上行SRS的配置信息，并为终端设备发送该上行SRS的配置信息。
305，基站向LMF返回基站的定位信息。可选地，基站向LMF返回的定位信息中包含终端设备的上行SRS的配置信息。
306，LMF激活终端设备进行SRS的发射工作。具体地，306可以包括306a-306c，在306a，LMF向基站发送定位激活请求消息，请求激活终端设备进行SRS的发射；在306b，基站激活终端设备进行SRS的发射；在306c，基站向LMF发送定位激活请求消息的响应消息。
307，LMF向基站发送测量请求，要求基站对终端设备发送的SRS进行测量。
308～309，LMF向终端设备提供定位辅助数据，并向终端设备发送定位测量请求。
310，终端设备和基站分别进行定位测量。其中，终端设备对基站发送的下行PRS进行测量，基站对终端设备发送的上行SRS进行测量。
311～312，终端设备和基站分别向LMF上报测量结果。例如，终端设备可以通过ProvideLocationInformation msg将测量结果上报给LMF。
313，LMF向基站发送定位去激活消息。
可以看出，采用Multi-RTT这一定位方式进行定位时，基站和终端设备均执行定位测量，使得LMF可以计算更精确的终端设备的定位。具体地，对于上行测量方向，在第304步，基站为终端设备配置上行SRS的资源，继而在第306a步网络激活终端设备进行SRS的发射工作。在第307步，LMF通过NRPPa测量请求告知临近各基站该终端设备的SRS资源配置，并要求各基站对终端设备发送的SRS进行测量，并最终在第312步，各基站将它们采集到的测量结果上报给LMF。此外，对于下行测量方向，在第308步和第309步，网络先是将各基站的独有的下行PRS配置信息发送给终端设备，继而激活终端执行下行测量，最终在第311步，终端设备将测量结果通过LPP发送至LMF。
定位参考信号的配置
在某些定位系统(比如5G定位系统)中，不同终端设备或基站发送的参考信号都应该保持正交性，这样的话，能够保证系统中各方测量的信号固定来自一个点，进而保证参考信号配置的唯一性，这种保证对于定位估计是基础性的。可选地，正交性可以是在时域/频域/码域至少之一确保即可。
下面分别针对下行PRS和定位SRS，介绍其对应的配置。
对于终端设备侧而言，下行PRS的配置信息是由定位设备通过定位协议信令提供给终端设备的，例如，在NR系统中，下行PRS的配置信息可以由LMF通过LPP信令提供给终端设备。下行PRS的参数配置可以采用四层信令结构，该四层信令结构从顶层到底层可以依次表示为：定位频率层(positioning frequency layer，PFL)、TRP、下行PRS资源集(PRS resource set)、以及下行PRS资源(PRS resource)。
下行PRS的参数配置中，最多可以为一个终端设备提供4个PFL的下行PRS配置。在每个PFL里 面，终端设备所配置的是多个TRP发送在同样频率点的下行PRS信号。在每个PFL里面所配置的PRS参数可以应用在这个PFL所包含的所有PRS资源上。每个PFL最多可以包括64个TRP，而每个TRP里面可以配置一个或两个下行PRS资源集，该一个或两个下行PRS资源集配置了这个TRP在某个频率点上发送的所有的下行PRS资源。每个下行PRS资源集里面可以配置多个下行PRS资源，每个下行PRS资源可以代表一个TRP的发送波束，而不同的下行PRS资源可以代表这个TRP的不同发送波束。
每个PFL的参数结构中，可以包括以下下行PRS信号的配置参数中的一项或多项：下行PRS信号的子载波间隔、下行PRS信号的循环前缀(cyclic prefix，CP)长度、下行PRS的频域资源带宽、下行PRS信号的频域参考点、下行PRS资源的频域起始频率位置、下行PRS信号的梳齿尺寸Comb-N。在每个PFL里面所配置的上述下行PRS参数可以应用在这个PFL所包含的所有下行PRS资源上。也就是说，在一个PFL里面，来自多个不同TRP的所有下行PRS信号会使用同样的子载波间隔和CP长度，同样的梳齿尺寸，发送在同样的频率子带上，并且占用完全一样的带宽。这样的设计可以支持终端设备能够同时接收并测量发送同样频点上的来自多个不同的TRP的下行PRS信号。
TRP层的参数可以包括一个用于唯一识别这个定位TRP的标识参数，例如，可以是这个TRP的物理小区标识(physical cell identifier，PCI)；或者，可以是这个TRP的小区全局标识(cell global identifier，CGI)，比如NR小区全局标识(NCGI)；又或者，还可以是这个TRP的绝对无线频道编号(absolute radio frequency channel number，ARFCN)。
每个TRP层里面可以最多配置2个下行PRS资源集。这些参数可以应用到这个资源集里面所包含的所有的下行PRS资源。下行PRS资源集这个层参数可以配置以下这些参数中的一项或多项：下行PRS资源集合识别标识、下行PRS的传输周期和时隙偏移、下行PRS资源的重复因子、下行PRS资源重复发送的时间间隔、下行PRS的静默(muting)配置、下行PRS资源所占的OFDM符号数。
在下行PRS资源这层配置里面，为每个下行PRS资源配置如下参数中的一项或多项：下行PRS资源识别标识、下行PRS的序列ID、下行PRS的起始频域资源单元偏移、下行PRS的资源时隙偏移、下行PRS的OFDM符号偏移、下行PRS的准共址信息(Quasi Co-Location，QCL)信息。
定位SRS信号的配置信息可以由服务小区的基站提供给终端设备，例如，通过高层信令(比如，无线资源控制(radio resource control，RRC)信令)提供给终端设备。在某些通信系统(比如，NR系统)中，可以采用与多输入多输出SRS(multi-input multi-output SRS，MIMO SRS)信号同样的方式来配置定位SRS信号。一个终端设备可以被配置一个或者多个定位SRS信号资源集。而一个定位SRS信号资源集里面可以包含一个或者多个定位SRS信号资源。和MIMO SRS信号相比，定位SRS信号的最大不同之处是定位SRS信号需要发送给非服务小区的TRP，以使得多个TRP能测量到同一个终端设备的上行定位测量值从而能计算这个终端设备的位置。在时域传输方面，定位SRS信号继承了MIMO SRS信号所支持所有时域传输行为。也就是说，定位SRS信号支持周期性传输，半持续传输和非周期的传输方式。半持续传输时，可以由MAC层控制单元(control element，MAC CE)来激活或去激活发送定位SRS信号。而非周期的定位SRS信号可以由下行控制信息(downlink control information，DCI)来触发以进行发送。这些都和已有的用于MIMO的SRS信号的发送机制是一样的。
不同网络覆盖情况下的侧行通信
侧行通信指的是基于侧行链路的通信技术。侧行通信例如可以是D2D或V2X。传统的蜂窝系统中的通信数据在终端设备和网络设备之间进行接收或者发送，而侧行通信支持在终端设备与终端设备之间直接进行通信数据传输。相比于传统的蜂窝通信，终端设备与终端设备直接进行通信数据的传输可以具有更高的频谱效率以及更低的传输时延。例如，车联网系统采用侧行通信技术。
在侧行通信中，根据终端设备所处的网络覆盖的情况，可以将侧行通信分为网络覆盖范围内(in-coverage，IC)的侧行通信，部分网络覆盖(partial coverage)的侧行通信，及网络覆盖范围外(out-of-coverage，OOC)的侧行通信。
图4为网络覆盖范围内的侧行通信的场景示例图。在图4所示的场景中，两个终端设备120a均处于网络设备110的覆盖范围内。因此，两个终端设备120a均可以接收网络设备110的配置信息(本申请中的配置信息也可替换为配置信令)，并根据网络设备110的配置信息确定侧行配置。在两个终端设备120a均进行侧行配置之后，即可在侧行链路上进行侧行通信。
图5为部分网络覆盖的侧行通信的场景示例图。在图5所示的场景中，终端设备120a与终端设备120b进行侧行通信。终端设备120a位于网络设备110的覆盖范围内，因此终端设备120a能够接收到网络设备110的配置信息，并根据网络设备110的配置信息确定侧行配置。终端设备120b位于网络覆盖范围外，无法接收网络设备110的配置信息。在这种情况下，终端设备120b可以根据预配置(pre-configuration)信息和/或位于网络覆盖范围内的终端设备120a发送的物理侧行广播信道(physical sidelink broadcast channel，PSBCH)中携带的信息确定侧行配置。在终端设备120a和终端设备120b均进行侧 行配置之后，即可在侧行链路上进行侧行通信。
图6为网络覆盖范围外的侧行通信的场景示例图。在图6所示的场景中，两个终端设备120b均位于网络覆盖范围外。在这种情况下，两个终端设备120b均可以根据预配置信息确定侧行配置。在两个终端设备120b均进行侧行配置之后，即可在侧行链路上进行侧行通信。
侧行通信场景下的定位
与采用基站作为锚点来确定终端设备的位置不同，在侧行通行的场景下进行定位时，可以采用终端设备作为锚点，这种情况下，可以将作为锚点的终端设备称为锚点终端设备(anchor UE)，需要确定其定位的终端设备称为目标终端设备(target UE，也可以称为待测终端设备)。其中，锚点终端设备与基站(或TRP)的作用类似，都可以作为锚点。
在侧行通信的场景下，系统可以通过锚点终端设备对目标终端设备发送的S-PRS执行测量，或者目标终端设备可以对锚点终端设备发送的S-PRS执行测量，结合锚点终端设备的位置信息，系统可以完成对目标终端设备的定位。
在网络覆盖范围内的侧行通信的场景下，用于侧行定位的目标终端设备和锚点终端设备均处于与通信系统(例如，5G系统)有连接的状态下，这种情况下，用于侧行定位的侧行定位参考信号(sidelink positioning reference signal，S-PRS)的配置可以由网络设备(例如基站和/或核心网中的定位设备)来配置。也就是说，在网络覆盖内的侧行通信的场景下，S-PRS的配置可以由网络侧来管控，可能的选项如下：(1)锚点终端设备的S-PRS可以由定位设备(比如，LMF)控制，目标终端设备的S-PRS可以由基站(比如，gNB)控制，这种情况下，锚点终端设备的S-PRS类似于NR系统中的下行PRS，目标终端设备的S-PRS类似于NR系统中的上行SRS。(2)锚点终端设备和目标终端设备的S-PRS均由基站控制。(3)锚点终端设备和目标终端设备的S-PRS均由定位设备控制。
在网络覆盖范围外的侧行通信的场景下，锚点终端设备和目标终端设备均处于与通信系统(例如，5G系统)无连接的状态下，这种情况下，用于锚点终端设备和目标终端设备执行侧行定位的S-PRS的配置不受网络设备的管控。
而对于部分网络覆盖的侧行通信场景，锚点终端设备和目标终端设备有一部分位于网络覆盖范围内，有一部分位于网络覆盖范围外。这种情况下，如果用于锚点终端设备和目标终端设备执行侧行定位的S-PRS的配置不受网络设备的管控，则可能导致对于周围其他终端设备造成S-PRS配置的冲突，特别是对位于网络覆盖范围内的小区边缘的终端设备造成冲突。
示例性地，在目标终端设备和锚点终端设备均处于网络覆盖范围外的场景下，由于移动性或信道质量变好，目标终端设备或锚点终端设备的网络覆盖状态可能会从网络覆盖范围外变为网络覆盖范围内，如果这个时候目标终端设备和锚点终端设备使用的侧行定位参考信号的配置不受网络侧的控制，那么可能会对周围其他终端设备造成侧行定位参考信号配置的冲突。
为了解决上述问题，本申请实施例提供一种用于侧行定位的方法、装置、终端设备和网络设备。
本申请实施例提供的技术方案，可以应用于部分网络覆盖场景下的侧行定位。在部分网络覆盖的场景下进行侧行定位时有多个终端设备参与，该多个终端设备包括执行定位操作的目标终端设备和多个锚点终端设备，以根据目标终端设备的测量结果或锚点终端设备的测量结果，并结合锚点终端设备的位置信息，确定目标终端设备的位置。
用于该多个终端设备进行侧行定位的定位方式可以包括多种，本申请实施例对此并不限定。作为一个示例，根据定位测量的相关信息的不同，用于侧行定位的定位方式可以包括TDOA定位、AOA定位、AOD定位、Multi-RTT定位、E-CID定位等。作为另一个示例，根据定位参考信号的流向，用于侧行定位的定位方式可以包括目标终端设备发送定位参考信号的定位方式和锚点终端设备发送定位参考信号的定位方式。
该多个终端设备中，有一部分位于网络覆盖范围内，一部分位于网络覆盖范围外。如图7所示，位于网络覆盖范围内的终端设备可以是目标终端设备，例如移动性或信道质量变好，目标终端设备的网络覆盖状态从位于网络覆盖范围外转换为位于网络覆盖范围内。如图8所示，位于网络覆盖范围内的终端设备也可以是锚点终端设备，本申请实施例对此并不限定。
下面结合附图对本申请实施例提供的方法进行详细描述。
图9为本申请一实施例提供的用于侧行定位的方法的流程示意图。图9的方法是站在第一终端设备和网络设备交互的角度描述的。第一终端设备是参与侧行定位的多个终端设备之一，且第一终端设备位于网络覆盖范围内。除第一终端设备之外，该多个终端设备中的其他终端设备可以部分位于网络覆盖范围外，或者全部位于网络覆盖范围外。也就是说，该多个终端设备中的除第一终端设备之外的部分或全部终端设备位于网络覆盖范围外。示例性地，第一终端设备例如可以是图5所示的终端设备120a。
在一些实施例中，第一终端设备可以是目标终端设备，以通过侧行定位获取第一终端设备的位置信 息。在一些实施例中，第一终端设备可以是锚点终端设备，以利用第一终端设备和其他锚点终端设备确定目标终端设备的位置信息。
本申请实施例中提及的网络设备，例如可以是指基站，也可以是指定位设备，本申请实施例对此并不限定。以NR系统为例，网络设备为基站时，该基站可以为gNB；网络设备为定位设备时，该定位设备可以为LMF。示例性地，网络设备可以是图1-图5中所示的网络设备110。关于终端设备和网络设备的具体描述可以参见前文，此处不再赘述。
如图9所示，在步骤S910，第一终端设备向网络设备发送第一消息。用于承载第一消息的信令类型可以包括多种，例如定位协议信令(比如LPP信令)、RRC信令、MAC CE信令等。以网络设备为定位设备为例，第一终端设备可以通过LPP信令发送该第一消息。以网络设备为基站为例，第一终端设备可以通过RRC专用信令、MAC CE信令等发送该第一消息。
第一消息包括第一定位配置信息。第一定位配置信息可以用于侧行定位。第一定位配置信息可以包括目标终端设备对应的定位配置信息和/或锚点终端设备对应的定位配置信息。
在第一终端设备为锚点终端设备的情况下，如果第一终端设备是定位参考信号的发送方，则第一定位配置信息可以包括锚点终端设备对应的定位配置信息，例如包括第一终端设备对应的定位配置信息和其他锚点终端设备对应的定位配置信息；如果第一终端设备是定位参考信号的接收方，则第一定位配置信息可以包括目标终端设备对应的定位配置信息。
在第一终端设备为目标终端设备的情况下，如果第一终端设备是定位参考信号的发送方，则第一定位配置信息可以包括目标终端设备对应的定位配置信息；如果第一终端设备是定位参考信号的接收方，则第一定位配置信息可以包括锚点终端设备对应的定位配置信息，例如和第一终端设备共同执行侧行定位的各个锚点终端设备对应的定位配置信息。
在一些实施例中，第一定位配置信息可以包含S-PRS的配置信息。S-PRS的配置信息中可以包含S-PRS的参数配置。本申请实施例对S-PRS的参数配置不做具体限定，例如，S-PRS的参数配置可以采用四层信令结构，例如参照下行PRS的四层信令结构进行等价转化得到的结构，或者也可以是其他信令结构。
在一些实施例中，第一消息除包含第一定位配置信息之外，还可以包含其他信息。示例性地，第一消息还可以包括以下信息中的一种或多种：多个终端设备的标识信息；多个终端设备采用的定位方式。
多个终端设备的标识信息可以包括目标终端设备的标识信息和/或锚点终端设备的标识信息。例如，在第一终端设备为目标终端设备的情况下，第一消息中可以包括多个锚点终端设备的标识信息，以便网络侧知晓与第一定位配置信息对应的锚点终端设备有哪些。或者，在第一终端设备为锚点终端设备的情况下，第一消息中可以包括目标终端设备的标识信息以及除第一终端设备之外的其他锚点终端设备的标识信息。
示例性地，多个终端设备采用的定位方式可以是前文列举的用于侧行定位的定位方式中的任意一种，例如可以是AOA定位。应该理解，采用的定位方式也可以是其他的定位方式，本申请对此并不限定。
在一些实施例中，第一消息的发送可以是基于事件触发的。示例性地，第一消息的发送可以是基于以下事件中的一种或多种触发的。下面对这些事件进行示例性说明。
第一事件：第一终端设备的网络覆盖状态从位于网络覆盖范围外转换为位于网络覆盖范围内。例如，第一终端设备从网络覆盖范围外移动至网络覆盖范围内的情况下，或者由于信道质量变好，第一终端设备的网络覆盖状态改变为网络覆盖范围内的情况下，均可以触发第一消息的发送。作为一个具体示例，多个终端设备(包含第一终端设备)本身均位于网络覆盖范围外，其协商好第一定位配置信息后可以基于该第一定位配置信息执行侧行定位，由于移动性或信道质量变好，多个终端设备中的第一终端设备的网络覆盖状态转换为位于网络覆盖范围内，则第一事件触发，第一终端设备向网络设备发送第一消息。
第二事件：第一终端设备测量的下行路损的值小于第一阈值。第一终端设备测量的下行路损的值小于第一阈值的情况下，可以间接推导出第一终端设备位于网络覆盖范围内，从而可以在第二事件触发的情况下，让第一终端设备向网络设备发送第一消息。作为一种实现方式，可以让第一终端设备测量最近的基站的下行路损参考信号的参考信号接收功率(reference signal receiving power，RSRP)，如果测得该下行路损参考信号的RSRP大于某一阈值，则代表第一终端设备测量的下行路损的值小于第一阈值，此时可以认为第二事件触发。
在部分网络覆盖的场景下进行侧行定位时，位于网络覆盖范围内的第一终端设备向网络设备发送第一定位配置信息，以便网络设备判断是否需要更新第一定位配置信息，有利于减少或避免后续使用第一定位配置信息执行侧行定位对其他终端设备造成配置冲突。
如前文所述，第一定位配置信息中可以包括锚点终端设备对应的定位配置信息。在一些实施例中， 第一定位配置信息中可以包括多个锚点终端设备对应的定位配置信息。例如，第一终端设备为锚点终端设备时，在执行定位操作的锚点终端设备有多个的情况下，第一终端设备可以理解为是多个锚点终端设备中的第一锚点终端设备，第一定位配置信息除包括第一锚点终端设备对应的配置信息外，还可以包括多个锚点终端设备中的第二锚点终端设备对应的定位配置信息。换句话说，第一终端设备为锚点终端设备时，第一定位配置信息中可以包括第一终端设备对应的定位配置信息以及除第一终端设备之外的其他锚点终端设备对应的定位配置信息。
由于第一锚点终端设备只知道自己对应的定位配置信息，而不知道第二锚点终端设备对应的定位配置信息，因此，在第一终端设备为第一锚点终端设备的情况下，第一锚点终端设备向网络设备发送第一定位配置信息之前，还需要获取第二锚点终端设备对应的定位配置信息。本申请实施例对第二锚点终端设备对应的定位配置信息的获取方式不做限定。
作为一种实现方式，考虑到各锚点终端设备均与目标终端设备之间建立有侧行链路，第一锚点终端设备需要获取第二锚点终端设备对应的定位配置信息时，可以通过第一锚点终端设备与目标终端设备之间的侧行链路获取，即第一锚点终端设备可以向目标终端设备请求第二锚点终端设备对应的定位配置信息。示例性地，第一锚点终端设备可以通过侧行专用信令向目标终端设备请求第二锚点终端设备的定位配置信息。
作为另一种实现方式，在第一锚点终端设备和第二锚点终端设备之间建立有侧行链路的情况下，可以直接通过第一锚点终端设备与第二锚点终端设备之间的侧行链路获取第二锚点终端设备对应的定位配置信息。
作为又一种实现方式，第二锚点终端设备可以广播自己对应的定位配置信息，在这种情况下，第一锚点终端设备可以通过接收第二锚点终端设备广播的定位配置信息来获取第二锚点终端设备对应的定位配置信息。
网络设备接收到第一终端设备发送的第一消息后，可以根据第一消息中的第一定位配置信息，判断多个终端设备使用第一定位配置信息执行侧行定位是否会对网络中配置的其他终端设备对应的定位配置信息产生冲突。
继续参见图9，在一些实施例中，本申请实施例提供的方法还可以包括步骤S920。在步骤S920，网络设备向第一终端设备发送第二消息，第二消息用于指示第一终端设备是否更新第一定位配置信息。下面对步骤S920进行详细介绍。
第二消息可以承载于不同的信令中。例如，网络设备为基站时，第二消息可以承载于RRC信令或MAC CE信令中；网络设备为定位设备时，第二消息可以承载于定位协议信令(比如LPP信令)中。在一些实施例中，承载第二消息的信令和承载第一消息的信令的类型可以相同，例如，均为LPP信令，或者均为RRC信令。在一些实施例中，承载第二消息的信令和承载第一消息的信令的类型可以不同，例如，承载第二消息的信令为RRC信令，而承载第一消息的信令为MAC CE信令。
在一些实施例中，第二消息用于指示第一终端设备继续使用第一定位配置信息。也就是说，第二消息可以用于指示不更新第一定位配置信息。作为一种实现方式，第二消息可以为肯定确认消息，用于向第一终端设备反馈确认消息，指示第一终端设备继续使用第一定位配置信息。作为另一种实现方式，第二消息可以包含第一定位配置信息，第一终端设备接收到第二消息后则可以继续使用第一定位配置信息。第二消息中的定位配置信息仍然为第一定位配置信息，也可以用于说明不更新第一定位配置信息。
在第二消息用于指示第一终端设备继续使用第一定位配置信息的情况下，第一终端设备接收到第二消息后，便可以和多个终端设备中的其他终端设备使用第一定位配置信息执行后续的侧行定位过程。
在一些实施例中，第二消息可以用于指示更新第一定位配置信息。例如，第二消息中可以包含第二定位配置信息。第二定位配置信息可以与第一定位配置信息不同，其可以理解为是更新后的第一定位配置信息。
在一些实施例中，第二消息中除包含第二定位配置信息之外，还可以包含其他信息，本申请实施例对此并不限定。示例性的，第二消息中还可以包括候选的锚点终端设备的标识信息，和/或，候选的定位方式。也就是说，网络设备除了可以更新第一定位配置信息之外，还可以配置其他可用的候选锚点终端设备，以及定位方式等。
在一些实施例中，第一终端设备在接收网络设备发送的第二消息之后，还可以向网络设备发送第二消息的响应消息，例如，第二消息的响应消息可以用于指示已完成第一定位配置信息的更新。
在第二消息用于指示第一终端设备更新第一定位配置信息的情况下，比如第二消息中包含第二定位配置信息的情况下，第一终端设备接收到网络设备发送的第二消息之后，还可以向一个或多个第二终端设备发送第三消息。第三消息可以用于指示该一个或多个第二终端设备基于第二定位配置信息进行侧行定位。
该一个或多个第二终端设备可以理解为是基于网络设备发送第二消息后，目标终端设备选择的最终参与侧行定位的各终端设备。换句话说，第二终端设备可以是第一消息中包含的多个终端设备中的一个，也可以是网络设备在第二消息中指示的候选的锚点终端设备中的一个，本申请实施例对此并不限定。为了简洁，后文可以将第一消息包含的多个终端设备中的锚点终端设备称为现有的锚点终端设备，将网络设备在第二消息中指示的候选的锚点终端设备称为新的锚点终端设备。
一个或多个第二终端设备可以包括候选的锚点终端设备(新的锚点终端设备)，也可以包括现有的锚点终端设备。也就是说，在网络设备指示候选的锚点终端设备的情况下，目标终端设备可以在现有的锚点终端设备和网络设备指示的新的锚点终端设备中进行选择，重新选择合适的锚点终端设备用于侧行定位。
在第一终端设备为目标终端设备的情况下，该一个或多个第二终端设备均为锚点终端设备。在一些实施例中，该一个或多个第二终端设备可以均是现有的锚点终端设备。在一些实施例中，该一个或多个第二终端设备可以均是候选的锚点终端设备。在一些实施例中，该一个或多个第二终端设备可以既包括现有的锚点终端设备，又包括候选的锚点终端设备。
在第一终端设备为锚点终端设备的情况下，该一个或多个第二终端设备既包括目标终端设备，也包括锚点终端设备。在一些实施例中，该一个或多个第二终端设备中的锚点终端设备可以均是现有的锚点终端设备。在一些实施例中，该一个或多个第二终端设备中的锚点终端设备可以均是候选的锚点终端设备。在一些实施例中，该一个或多个第二终端设备中的锚点终端设备可以既包括现有的锚点终端设备，又包括候选的锚点终端设备。
本申请实施例对目标终端设备从现有的锚点终端设备和候选的锚点终端设备中选择最终参与侧行定位的锚点终端设备的准则不做具体限定。示例性地，目标终端设备可以根据以下准则中的一种或多种来选择合适的锚点终端设备进行侧行定位：是否有全球导航卫星系统(global navigation satellite system，GNSS)时钟同步、侧行RSRP是否满足阈值、是否有直射径，等等。
如前文所述，在一些实施例中，第二消息中还可以包含候选的定位方式。这种情况下，第一终端设备和该一个或多个第二终端设备采用的侧行定位的定位方式可以包括该候选的定位方式。例如，第二消息中指示的候选的定位方式为TDOA定位，则第一终端设备和该一个或多个第二终端设备采用的侧行定位的定位方式可以是TDOA定位。但本申请实施例并不限定于此，例如，第一终端设备和该一个或多个第二终端设备采用的侧行定位的定位方式可以是候选的定位方式之外的其他方式，例如，可以是多个终端设备原来计划采用的定位方式，比如是在第一消息中指示的定位方式(如AOA定位)。
在一些实施例中，该一个或多个第二终端设备接收到第一终端设备发送的第三消息之后，还可以向第一终端设备发送第三消息的响应消息。
可选地，第三消息的响应消息可以用于指示该一个或多个第二终端设备确认使用第二定位配置信息进行侧行定位。
如前文所述，存在第二终端设备是锚点终端设备的情况，此时，如果第一终端设备也是锚点终端设备，那第一终端设备和第二终端设备之间进行消息的传输时(例如，第三消息或第三消息的响应消息)，可以存在多种传输方式。以第一终端设备为多个终端设备中的第一锚点终端设备、第二终端设备为多个终端设备中的第二锚点终端设备为例，第三消息和/或第三消息的响应消息可以通过多种方式进行传输。
作为一种实现方式，考虑到各锚点终端设备均与目标终端设备之间建立有侧行链路，第一锚点终端设备和第二锚点终端设备之间需要传输消息时，可以通过第一锚点终端设备与目标终端设备之间的侧行链路传输，即第一锚点终端设备可以向目标终端设备发送第三消息，由目标终端设备向第二锚点终端设备转发该第三消息；或者，第二锚点终端设备向目标终端设备发送第三消息的响应消息，由目标终端设备向第一锚点终端设备转发该第三消息的响应消息。
作为另一种实现方式，在第一锚点终端设备和第二锚点终端设备之间建立有侧行链路的情况下，可以直接通过第一锚点终端设备与第二锚点终端设备之间的侧行链路传输。
下面结合图10和图11，给出本申请实施例的两个示例。
在示例一中，第一终端设备为目标终端设备，且第一终端设备为S-PRS的发送方。第一终端设备和三个锚点终端设备(锚点终端设备1、锚点终端设备2和锚点终端设备3)原本均位于网络覆盖范围外，该三个锚点终端设备用于和第一终端设备执行侧行定位。第一终端设备已经配置有定位参考信号(例如，S-PRS)。下面结合图10，对示例一进行详细描述。
在步骤S1010，当第一终端设备的网络覆盖状态从位于网络覆盖范围外转换为位于网络覆盖范围内时，第一终端设备向网络设备发送第一消息，将第一定位配置信息发送给网络设备。该第一定位配置信息中包含第一终端设备正在使用的S-PRS的配置信息。
可选地，第一终端设备可以根据测得最近的基站的下行路损的RSRP高于一定阈值，间接推导出第 一终端设备处于网络覆盖范围内。
可选地，第一终端设备可以通过RRC专用信令、MAC CE信令、LPP信令等将第一定位配置信息发送给网络设备。
可选地，第一定位配置信息中还可以包含参与定位的三个锚点终端设备的标识信息，所采用的定位方式等。
在步骤S1020，网络设备确定第一定位配置信息是否会对网络配置的其他终端设备的S-PRS造成冲突。
在步骤S1030，网络设备向第一终端设备发送第二消息。
如果网络设备确定第一定位配置信息不会对网络配置的其他终端设备的S-PRS造成冲突，则第二消息用于指示第一终端设备继续使用第一定位配置信息。例如，第二消息可以为反馈确认消息，第一终端设备接收到该反馈确认消息后，过程结束。后续第一终端设备可以和三个锚点终端设备基于第一定位配置信息执行侧行定位。
如果网络设备确定第一定位配置信息会对网络配置的其他终端设备的S-PRS造成冲突，则第二消息用于向第一终端设备指示第二定位配置信息，该第二定位配置信息可以理解为是更新的定位配置信息。第二定位配置信息中可以包含新的S-PRS的配置信息。
可选地，第二消息中还可以指示其他可用的候选锚点终端设备的标识消息、以及候选的定位方式等。
可选地，第二消息可以通过RRC专用信令、MAC CE信令、LPP信令等发送给第一终端设备。
在步骤S1040，第一终端设备向一个或多个第二终端设备发送第三消息，第三消息用于指示该一个或多个第二终端设备基于第二定位配置信息进行侧行定位。例如，该一个或多个第二终端设备为可以为现有的三个锚点终端设备(锚点终端设备1、锚点终端设备2和锚点终端设备3)。这种情况下，也可以理解为第一终端设备接收到第二定位配置信息后，可以向现有的锚点终端设备告知第二定位配置信息。
可选地，第一终端设备可以通过侧行专用信令向第二终端设备发送第二定位配置信息；或者，第一终端设备可以在广播中搭载第二定位配置信息，以便第二终端设备接收第二定位配置信息。
可选地，如果第二消息中指示有其他可用的候选锚点终端设备的标识信息，则第一终端设备可以在现有的锚点终端设备和网络设备指示的候选的锚点终端设备中选择，重新选择合适的锚点终端设备用于侧行定位。
可选地，如果第二消息中指示有候选的定位方式，第一终端设备可以采用网络设备指示的候选的定位方式中的一种来执行后续的侧行定位。
在步骤S1050，一个或多个第二终端设备向第一终端设备发送第三消息的响应消息，确认配置更新。
在步骤S1060，第一终端设备向网络设备发送第二消息的响应消息，确认完成第一定位配置信息的更新。
在步骤S1070，第一终端设备和最终选择的锚点终端设备，根据第二定位配置信息执行侧行定位过程。
在示例二中，第一终端设备为锚点终端设备，且第一终端设备为S-PRS的发送方。第一终端设备(锚点终端设备1)和目标终端设备以及另外两个锚点终端设备(锚点终端设备2和锚点终端设备3)原本均位于网络覆盖范围外，目标终端设备以及三个锚点终端设备用于执行侧行定位。第一终端设备和另外两个锚点终端设备已经配置有定位参考信号(例如，S-PRS)。下面结合图11，对示例二进行详细描述。
在步骤S1110，当第一终端设备的网络覆盖状态从位于网络覆盖范围外转换为位于网络覆盖范围内时，第一终端设备向网络设备发送第一消息，将正在使用的第一定位配置信息发送给网络设备。该第一定位配置信息中包含第一终端设备以及另外两个锚点终端设备正在使用的S-PRS的配置信息。
可选地，第一终端设备可以通过侧行专用信令向目标终端设备请求另外两个锚点终端设备正在使用的S-PRS的配置信息，也可以通过侧行专用信令向另外两个锚点终端设备直接请求，也可以通过接收另外两个锚点终端设备广播的S-PRS的配置信息获取。
可选地，第一终端设备可以根据测得最近的基站的下行路损的RSRP高于一定阈值，间接推导出第一终端设备处于网络覆盖范围内。
可选地，第一终端设备可以通过RRC专用信令、MAC CE信令、LPP信令等将第一定位配置信息发送给网络设备。
可选地，第一定位配置信息中还可以包含目标终端设备的标识信息，另外两个锚点终端设备的标识信息，所采用的定位方式等。
在步骤S1120，网络设备确定第一定位配置信息是否会对网络配置的其他终端设备的S-PRS造成 冲突。
在步骤S1130，网络设备向第一终端设备发送第二消息。
如果网络设备确定第一定位配置信息不会对网络配置的其他终端设备的S-PRS造成冲突，则第二消息用于指示第一终端设备继续使用第一定位配置信息。例如，第二消息可以为反馈确认消息，第一终端设备接收到该反馈确认消息后，过程结束。后续第一终端设备可以和目标终端设备以及另外两个锚点终端设备执行侧行定位。
如果网络设备确定第一定位配置信息会对网络配置的其他终端设备的S-PRS造成冲突，则第二消息用于向第一终端设备指示第二定位配置信息，该第二定位配置信息可以理解为是更新的定位配置信息。第二定位配置信息中可以包含新的S-PRS的配置信息。
可选地，第二消息中还可以指示其他可用的候选锚点终端设备的标识消息、以及候选的定位方式等。
可选地，第二消息可以通过RRC专用信令、MAC CE信令、LPP信令等发送给第一终端设备。
在步骤S1140，第一终端设备向一个或多个第二终端设备发送第三消息，第三消息用于指示该一个或多个第二终端设备基于第二定位配置信息进行侧行定位。例如，该一个或多个第二终端设备为可以为目标终端设备和另外两个锚点终端设备(锚点终端设备2和锚点终端设备3)。这种情况下，也可以理解为第一终端设备接收到第二定位配置信息后，可以向目标终端设备和现有的锚点终端设备告知第二定位配置信息。
可选地，第二终端设备为锚点终端设备时，第一终端设备可以通过目标终端设备转发第二定位配置信息；或者，第一终端设备可以通过侧行专用信令直接向第二终端设备发送第二定位配置信息；又或者，第一终端设备可以在广播中搭载第二定位配置信息，以便第二终端设备接收第二定位配置信息。
可选地，如果第二消息中指示有其他可用的候选锚点终端设备的标识信息，则目标终端设备可以在现有的锚点终端设备和网络设备指示的候选的锚点终端设备中选择，重新选择合适的锚点终端设备用于侧行定位。
可选地，如果第二消息中指示有候选的定位方式，第一终端设备可以采用网络设备指示的候选的定位方式中的一种来执行后续的侧行定位。
在步骤S1150，一个或多个第二终端设备向第一终端设备发送第三消息的响应消息，确认配置更新。
在步骤S1160，第一终端设备向网络设备发送第二消息的响应消息，确认完成第一定位配置信息的更新。
在步骤S1170，第一终端设备和最终选择的锚点终端设备，根据第二定位配置信息执行侧行定位过程。
上文结合图1至图11，详细描述了本申请的方法实施例，下面结合图12至图14，详细描述本申请的装置实施例。应理解，方法实施例的描述与装置实施例的描述相互对应，因此，未详细描述的部分可以参见前面方法实施例。
图12为本申请一实施例提供的用于侧行定位的装置的结构示意图。图12所示的装置1200配置于第一终端设备，第一终端设备为参与侧行定位的多个终端设备之一，且第一终端设备位于网络覆盖范围内，该多个终端设备中的除第一终端设备之外的部分或全部终端设备位于网络覆盖范围外。图12的装置1200可以包括第一发送单元1210。
第一发送单元1210可以用于向网络设备发送第一消息，所述第一消息包括用于侧行定位的第一定位配置信息。
可选地，所述多个终端设备包括执行定位操作的目标终端设备以及多个锚点终端设备，所述第一终端设备为所述多个锚点终端设备中的第一锚点终端设备，所述第一定位配置信息包括所述多个锚点终端设备中的第二锚点终端设备对应的定位配置信息。
可选地，所述第二锚点终端设备对应的定位配置信息是通过所述第一锚点终端设备与所述目标终端设备之间的侧行链路获取的；或者，所述第二锚点终端设备对应的定位配置信息是通过所述第一锚点终端设备与所述第二锚点终端设备之间的侧行链路获取的。
可选地，所述第一消息的发送是基于以下事件中的一种或多种触发的：所述第一终端设备的网络覆盖状态从位于网络覆盖范围外转换为位于网络覆盖范围内；所述第一终端设备测量的下行路损的值小于第一阈值。
可选地，装置1200还包括第一接收单元1220。第一接收单元1220可以用于接收所述网络设备发送的第二消息，所述第二消息用于指示所述第一终端设备是否更新所述第一定位配置信息。
可选地，所述第二消息用于指示所述第一终端设备继续使用所述第一定位配置信息。
可选地，所述第二消息包含以下信息中的一种或多种：用于侧行定位的第二定位配置信息；候选的锚点终端设备的标识信息；以及候选的定位方式。
可选地，装置1200还包括：第二发送单元，用于向一个或多个第二终端设备发送第三消息，所述第三消息用于指示所述一个或多个第二终端设备基于所述第二定位配置信息进行侧行定位。
可选地，所述一个或多个第二终端设备包括所述候选的锚点终端设备；和/或，所述第一终端设备与所述一个或多个第二终端设备采用的侧行定位的定位方式包括所述候选的定位方式。
可选地，装置1200还包括：第二接收单元，用于接收所述一个或多个第二终端设备发送的所述第三消息的响应消息，所述第三消息的响应消息用于指示所述一个或多个第二终端设备确认使用所述第二定位配置信息进行侧行定位。
可选地，所述多个终端设备包括执行定位操作的目标终端设备以及多个锚点终端设备，在所述第一终端设备为所述多个锚点终端设备中的第一锚点终端设备，所述第二终端设备为所述多个锚点终端设备中的第二锚点终端设备的情况下，所述第三消息和/或所述第三消息的响应消息是通过所述第一锚点终端设备与所述目标终端设备之间的侧行链路传输的；或者，所述第三消息和/或所述第三消息的响应消息是通过所述第一锚点终端设备与所述第二锚点终端设备之间的侧行链路传输的。
可选地，装置1200还包括：第三发送单元，用于向所述网络设备发送所述第二消息的响应消息，所述第二消息的响应消息用于指示已完成所述第一定位配置信息的更新。
可选地，所述第一消息还包括以下信息中的一种或多种：所述多个终端设备的标识信息；所述多个终端设备采用的定位方式。
可选地，所述第一定位配置信息包含侧行定位参考信号的配置信息。
图13为本申请另一实施例提供的用于侧行定位的装置的结构示意图。图13所示的装置1300配置于网络设备，例如配置于基站或定位设备。装置1300可以包括第一接收单元1310。
第一接收单元1310可以用于接收第一终端设备发送的第一消息，所述第一消息包括用于侧行定位的第一定位配置信息；其中，所述第一终端设备为参与所述侧行定位的多个终端设备之一，且所述第一终端设备位于网络覆盖范围内，所述多个终端设备中的除所述第一终端设备之外的部分或全部终端设备位于网络覆盖范围外。
可选地，所述多个终端设备包括执行定位操作的目标终端设备以及多个锚点终端设备，所述第一终端设备为所述多个锚点终端设备中的第一锚点终端设备，所述第一定位配置信息包括所述多个锚点终端设备中的第二锚点终端设备对应的定位配置信息。
可选地，所述第二锚点终端设备对应的定位配置信息是通过所述第一锚点终端设备与所述目标终端设备之间的侧行链路获取的；或者，所述第二锚点终端设备对应的定位配置信息是通过所述第一锚点终端设备与所述第二锚点终端设备之间的侧行链路获取的。
可选地，所述第一消息的发送是基于以下事件中的一种或多种触发的：所述第一终端设备的网络覆盖状态从位于网络覆盖范围外转换为位于网络覆盖范围内；所述第一终端设备测量的下行路损的值小于第一阈值。
可选地，装置1300还包括第一发送单元1320。第一发送单元1320可以用于向所述第一终端设备发送第二消息，所述第二消息用于指示所述第一终端设备是否更新所述第一定位配置信息。
可选地，所述第二消息用于指示所述第一终端设备继续使用所述第一定位配置信息。
可选地，所述第二消息包含以下信息中的一种或多种：用于侧行定位的第二定位配置信息；候选的锚点终端设备的标识信息；以及候选的定位方式。
可选地，装置1300还包括：第二接收单元，用于接收所述第一终端设备发送的所述第二消息的响应消息，所述第二消息的响应消息用于指示已完成所述第一定位配置信息的更新。
可选地，所述第一消息还包括以下信息中的一种或多种：所述多个终端设备的标识信息；所述多个终端设备采用的定位方式。
可选地，所述第一定位配置信息包含侧行定位参考信号的配置信息。
图14是本申请实施例的通信装置的示意性结构图。图14中的虚线表示该单元或模块为可选的。该装置1400可用于实现上述方法实施例中描述的方法。装置1400可以是芯片、终端设备或网络设备。
装置1400可以包括一个或多个处理器1410。该处理器1410可支持装置1400实现前文方法实施例所描述的方法。该处理器1410可以是通用处理器或者专用处理器。例如，该处理器可以为中央处理单元(central processing unit，CPU)。或者，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
装置1400还可以包括一个或多个存储器1420。存储器1420上存储有程序，该程序可以被处理器1410执行，使得处理器1410执行前文方法实施例所描述的方法。存储器1420可以独立于处理器1410 也可以集成在处理器1410中。
装置1400还可以包括收发器1430。处理器1410可以通过收发器1430与其他设备或芯片进行通信。例如，处理器1410可以通过收发器1430与其他设备或芯片进行数据收发。
本申请实施例还提供一种计算机可读存储介质，用于存储程序。该计算机可读存储介质可应用于本申请实施例提供的终端或网络设备中，并且该程序使得计算机执行本申请各个实施例中的由终端或网络设备执行的方法。
本申请实施例还提供一种计算机程序产品。该计算机程序产品包括程序。该计算机程序产品可应用于本申请实施例提供的终端或网络设备中，并且该程序使得计算机执行本申请各个实施例中的由终端或网络设备执行的方法。
本申请实施例还提供一种计算机程序。该计算机程序可应用于本申请实施例提供的终端或网络设备中，并且该计算机程序使得计算机执行本申请各个实施例中的由终端或网络设备执行的方法。
应理解，本申请中术语“系统”和“网络”可以被可互换使用。另外，本申请使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。
在本申请的实施例中，提到的“指示”可以是直接指示，也可以是间接指示，还可以是表示具有关联关系。举例说明，A指示B，可以表示A直接指示B，例如B可以通过A获取；也可以表示A间接指示B，例如A指示C，B可以通过C获取；还可以表示A和B之间具有关联关系。
在本申请实施例中，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
在本申请实施例中，术语“对应”可表示两者之间具有直接对应或间接对应的关系，也可以表示两者之间具有关联关系，也可以是指示与被指示、配置与被配置等关系。
本申请实施例中，“预定义”或“预配置”可以通过在设备(例如，包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现，本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。
本申请实施例中，所述“协议”可以指通信领域的标准协议，例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议，本申请对此不做限定。
本申请实施例中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够读取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，数字通用光盘(digital video disc， DVD))或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (55)

  1. 一种用于侧行定位的方法，其特征在于，包括：
    第一终端设备向网络设备发送第一消息，所述第一消息包括用于侧行定位的第一定位配置信息；
    其中，所述第一终端设备为参与所述侧行定位的多个终端设备之一，且所述第一终端设备位于网络覆盖范围内，所述多个终端设备中的除所述第一终端设备之外的部分或全部终端设备位于网络覆盖范围外。
  2. 根据权利要求1所述的方法，其特征在于，所述多个终端设备包括执行定位操作的目标终端设备以及多个锚点终端设备，所述第一终端设备为所述多个锚点终端设备中的第一锚点终端设备，所述第一定位配置信息包括所述多个锚点终端设备中的第二锚点终端设备对应的定位配置信息。
  3. 根据权利要求2所述的方法，其特征在于，所述第二锚点终端设备对应的定位配置信息是通过所述第一锚点终端设备与所述目标终端设备之间的侧行链路获取的；或者，所述第二锚点终端设备对应的定位配置信息是通过所述第一锚点终端设备与所述第二锚点终端设备之间的侧行链路获取的。
  4. 根据权利要求1-3中任一项所述的方法，其特征在于，所述第一消息的发送是基于以下事件中的一种或多种触发的：
    所述第一终端设备的网络覆盖状态从位于网络覆盖范围外转换为位于网络覆盖范围内；
    所述第一终端设备测量的下行路损的值小于第一阈值。
  5. 根据权利要求1-4中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一终端设备接收所述网络设备发送的第二消息，所述第二消息用于指示所述第一终端设备是否更新所述第一定位配置信息。
  6. 根据权利要求5所述的方法，其特征在于，所述第二消息用于指示所述第一终端设备继续使用所述第一定位配置信息。
  7. 根据权利要求5所述的方法，其特征在于，所述第二消息包含以下信息中的一种或多种：
    用于侧行定位的第二定位配置信息；
    候选的锚点终端设备的标识信息；以及
    候选的定位方式。
  8. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    所述第一终端设备向一个或多个第二终端设备发送第三消息，所述第三消息用于指示所述一个或多个第二终端设备基于所述第二定位配置信息进行侧行定位。
  9. 根据权利要求8所述的方法，其特征在于，所述一个或多个第二终端设备包括所述候选的锚点终端设备；和/或，所述第一终端设备与所述一个或多个第二终端设备采用的侧行定位的定位方式包括所述候选的定位方式。
  10. 根据权利要求8或9所述的方法，其特征在于，所述方法还包括：
    所述第一终端设备接收所述一个或多个第二终端设备发送的所述第三消息的响应消息，所述第三消息的响应消息用于指示所述一个或多个第二终端设备确认使用所述第二定位配置信息进行侧行定位。
  11. 根据权利要求8-10中任一项所述的方法，其特征在于，所述多个终端设备包括执行定位操作的目标终端设备以及多个锚点终端设备，在所述第一终端设备为所述多个锚点终端设备中的第一锚点终端设备，所述第二终端设备为所述多个锚点终端设备中的第二锚点终端设备的情况下，所述第三消息和/或所述第三消息的响应消息是通过所述第一锚点终端设备与所述目标终端设备之间的侧行链路传输的；或者，所述第三消息和/或所述第三消息的响应消息是通过所述第一锚点终端设备与所述第二锚点终端设备之间的侧行链路传输的。
  12. 根据权利要求8-11中任一项所述的方法，其特征在于，所述方法还包括：
    所述第一终端设备向所述网络设备发送所述第二消息的响应消息，所述第二消息的响应消息用于指示已完成所述第一定位配置信息的更新。
  13. 根据权利要求1-12中任一项所述的方法，其特征在于，所述第一消息还包括以下信息中的一种或多种：
    所述多个终端设备的标识信息；
    所述多个终端设备采用的定位方式。
  14. 根据权利要求1-13中任一项所述的方法，其特征在于，所述第一定位配置信息包含侧行定位参考信号的配置信息。
  15. 一种用于侧行定位的方法，其特征在于，包括：
    网络设备接收第一终端设备发送的第一消息，所述第一消息包括用于侧行定位的第一定位配置信 息；
    其中，所述第一终端设备为参与所述侧行定位的多个终端设备之一，且所述第一终端设备位于网络覆盖范围内，所述多个终端设备中的除所述第一终端设备之外的部分或全部终端设备位于网络覆盖范围外。
  16. 根据权利要求15所述的方法，其特征在于，所述多个终端设备包括执行定位操作的目标终端设备以及多个锚点终端设备，所述第一终端设备为所述多个锚点终端设备中的第一锚点终端设备，所述第一定位配置信息包括所述多个锚点终端设备中的第二锚点终端设备对应的定位配置信息。
  17. 根据权利要求16所述的方法，其特征在于，所述第二锚点终端设备对应的定位配置信息是通过所述第一锚点终端设备与所述目标终端设备之间的侧行链路获取的；或者，所述第二锚点终端设备对应的定位配置信息是通过所述第一锚点终端设备与所述第二锚点终端设备之间的侧行链路获取的。
  18. 根据权利要求15-17中任一项所述的方法，其特征在于，所述第一消息的发送是基于以下事件中的一种或多种触发的：
    所述第一终端设备的网络覆盖状态从位于网络覆盖范围外转换为位于网络覆盖范围内；
    所述第一终端设备测量的下行路损的值小于第一阈值。
  19. 根据权利要求15-18中任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备向所述第一终端设备发送第二消息，所述第二消息用于指示所述第一终端设备是否更新所述第一定位配置信息。
  20. 根据权利要求19所述的方法，其特征在于，所述第二消息用于指示所述第一终端设备继续使用所述第一定位配置信息。
  21. 根据权利要求19所述的方法，其特征在于，所述第二消息包含以下信息中的一种或多种：
    用于侧行定位的第二定位配置信息；
    候选的锚点终端设备的标识信息；以及
    候选的定位方式。
  22. 根据权利要求21所述的方法，其特征在于，所述方法还包括：
    所述网络设备接收所述第一终端设备发送的所述第二消息的响应消息，所述第二消息的响应消息用于指示已完成所述第一定位配置信息的更新。
  23. 根据权利要求15-22中任一项所述的方法，其特征在于，所述第一消息还包括以下信息中的一种或多种：
    所述多个终端设备的标识信息；
    所述多个终端设备采用的定位方式。
  24. 根据权利要求15-23中任一项所述的方法，其特征在于，所述第一定位配置信息包含侧行定位参考信号的配置信息。
  25. 一种用于侧行定位的装置，其特征在于，所述装置配置于第一终端设备，所述装置包括：
    第一发送单元，用于向网络设备发送第一消息，所述第一消息包括用于侧行定位的第一定位配置信息；
    其中，所述第一终端设备为参与所述侧行定位的多个终端设备之一，且所述第一终端设备位于网络覆盖范围内，所述多个终端设备中的除所述第一终端设备之外的部分或全部终端设备位于网络覆盖范围外。
  26. 根据权利要求25所述的装置，其特征在于，所述多个终端设备包括执行定位操作的目标终端设备以及多个锚点终端设备，所述第一终端设备为所述多个锚点终端设备中的第一锚点终端设备，所述第一定位配置信息包括所述多个锚点终端设备中的第二锚点终端设备对应的定位配置信息。
  27. 根据权利要求26所述的装置，其特征在于，所述第二锚点终端设备对应的定位配置信息是通过所述第一锚点终端设备与所述目标终端设备之间的侧行链路获取的；或者，所述第二锚点终端设备对应的定位配置信息是通过所述第一锚点终端设备与所述第二锚点终端设备之间的侧行链路获取的。
  28. 根据权利要求25-27中任一项所述的装置，其特征在于，所述第一消息的发送是基于以下事件中的一种或多种触发的：
    所述第一终端设备的网络覆盖状态从位于网络覆盖范围外转换为位于网络覆盖范围内；
    所述第一终端设备测量的下行路损的值小于第一阈值。
  29. 根据权利要求25-28中任一项所述的装置，其特征在于，所述装置还包括：
    第一接收单元，用于接收所述网络设备发送的第二消息，所述第二消息用于指示所述第一终端设备是否更新所述第一定位配置信息。
  30. 根据权利要求29所述的装置，其特征在于，所述第二消息用于指示所述第一终端设备继续使 用所述第一定位配置信息。
  31. 根据权利要求29所述的装置，其特征在于，所述第二消息包含以下信息中的一种或多种：
    用于侧行定位的第二定位配置信息；
    候选的锚点终端设备的标识信息；以及
    候选的定位方式。
  32. 根据权利要求31所述的装置，其特征在于，所述装置还包括：
    第二发送单元，用于向一个或多个第二终端设备发送第三消息，所述第三消息用于指示所述一个或多个第二终端设备基于所述第二定位配置信息进行侧行定位。
  33. 根据权利要求32所述的装置，其特征在于，所述一个或多个第二终端设备包括所述候选的锚点终端设备；和/或，所述第一终端设备与所述一个或多个第二终端设备采用的侧行定位的定位方式包括所述候选的定位方式。
  34. 根据权利要求32或33所述的装置，其特征在于，所述装置还包括：
    第二接收单元，用于接收所述一个或多个第二终端设备发送的所述第三消息的响应消息，所述第三消息的响应消息用于指示所述一个或多个第二终端设备确认使用所述第二定位配置信息进行侧行定位。
  35. 根据权利要求32-34中任一项所述的装置，其特征在于，所述多个终端设备包括执行定位操作的目标终端设备以及多个锚点终端设备，在所述第一终端设备为所述多个锚点终端设备中的第一锚点终端设备，所述第二终端设备为所述多个锚点终端设备中的第二锚点终端设备的情况下，所述第三消息和/或所述第三消息的响应消息是通过所述第一锚点终端设备与所述目标终端设备之间的侧行链路传输的；或者，所述第三消息和/或所述第三消息的响应消息是通过所述第一锚点终端设备与所述第二锚点终端设备之间的侧行链路传输的。
  36. 根据权利要求32-35中任一项所述的装置，其特征在于，所述装置还包括：
    第三发送单元，用于向所述网络设备发送所述第二消息的响应消息，所述第二消息的响应消息用于指示已完成所述第一定位配置信息的更新。
  37. 根据权利要求25-36中任一项所述的装置，其特征在于，所述第一消息还包括以下信息中的一种或多种：
    所述多个终端设备的标识信息；
    所述多个终端设备采用的定位方式。
  38. 根据权利要求25-37中任一项所述的装置，其特征在于，所述第一定位配置信息包含侧行定位参考信号的配置信息。
  39. 一种用于侧行定位的装置，其特征在于，所述装置配置于网络设备，所述装置包括：
    第一接收单元，用于接收第一终端设备发送的第一消息，所述第一消息包括用于侧行定位的第一定位配置信息；
    其中，所述第一终端设备为参与所述侧行定位的多个终端设备之一，且所述第一终端设备位于网络覆盖范围内，所述多个终端设备中的除所述第一终端设备之外的部分或全部终端设备位于网络覆盖范围外。
  40. 根据权利要求39所述的装置，其特征在于，所述多个终端设备包括执行定位操作的目标终端设备以及多个锚点终端设备，所述第一终端设备为所述多个锚点终端设备中的第一锚点终端设备，所述第一定位配置信息包括所述多个锚点终端设备中的第二锚点终端设备对应的定位配置信息。
  41. 根据权利要求40所述的装置，其特征在于，所述第二锚点终端设备对应的定位配置信息是通过所述第一锚点终端设备与所述目标终端设备之间的侧行链路获取的；或者，所述第二锚点终端设备对应的定位配置信息是通过所述第一锚点终端设备与所述第二锚点终端设备之间的侧行链路获取的。
  42. 根据权利要求39-41中任一项所述的装置，其特征在于，所述第一消息的发送是基于以下事件中的一种或多种触发的：
    所述第一终端设备的网络覆盖状态从位于网络覆盖范围外转换为位于网络覆盖范围内；
    所述第一终端设备测量的下行路损的值小于第一阈值。
  43. 根据权利要求39-42中任一项所述的装置，其特征在于，所述装置还包括：
    第一发送单元，用于向所述第一终端设备发送第二消息，所述第二消息用于指示所述第一终端设备是否更新所述第一定位配置信息。
  44. 根据权利要求43所述的装置，其特征在于，所述第二消息用于指示所述第一终端设备继续使用所述第一定位配置信息。
  45. 根据权利要求43所述的装置，其特征在于，所述第二消息包含以下信息中的一种或多种：
    用于侧行定位的第二定位配置信息；
    候选的锚点终端设备的标识信息；以及
    候选的定位方式。
  46. 根据权利要求45所述的装置，其特征在于，所述装置还包括：
    第二接收单元，用于接收所述第一终端设备发送的所述第二消息的响应消息，所述第二消息的响应消息用于指示已完成所述第一定位配置信息的更新。
  47. 根据权利要求39-46中任一项所述的装置，其特征在于，所述第一消息还包括以下信息中的一种或多种：
    所述多个终端设备的标识信息；
    所述多个终端设备采用的定位方式。
  48. 根据权利要求39-47中任一项所述的装置，其特征在于，所述第一定位配置信息包含侧行定位参考信号的配置信息。
  49. 一种终端设备，其特征在于，包括存储器和处理器，所述存储器用于存储程序，所述处理器用于调用所述存储器中的程序，以使所述终端设备执行如权利要求1-14中任一项所述的方法。
  50. 一种网络设备，其特征在于，包括存储器和处理器，所述存储器用于存储程序，所述处理器用于调用所述存储器中的程序，以使所述网络设备执行如权利要求15-24中任一项所述的方法。
  51. 一种装置，其特征在于，包括处理器，用于从存储器中调用程序，以使所述装置执行如权利要求1-24中任一项所述的方法。
  52. 一种芯片，其特征在于，包括处理器，用于从存储器调用程序，使得安装有所述芯片的设备执行如权利要求1-24中任一项所述的方法。
  53. 一种计算机可读存储介质，其特征在于，其上存储有程序，所述程序使得计算机执行如权利要求1-24中任一项所述的方法。
  54. 一种计算机程序产品，其特征在于，包括程序，所述程序使得计算机执行如权利要求1-24中任一项所述的方法。
  55. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求1-24中任一项所述的方法。
PCT/CN2022/100049 2022-06-21 2022-06-21 用于侧行定位的方法、装置、终端设备和网络设备 WO2023245406A1 (zh)

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