WO2022206918A1 - 一种prs资源确定方法及装置 - Google Patents

一种prs资源确定方法及装置 Download PDF

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Publication number
WO2022206918A1
WO2022206918A1 PCT/CN2022/084550 CN2022084550W WO2022206918A1 WO 2022206918 A1 WO2022206918 A1 WO 2022206918A1 CN 2022084550 W CN2022084550 W CN 2022084550W WO 2022206918 A1 WO2022206918 A1 WO 2022206918A1
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WIPO (PCT)
Prior art keywords
prs
lmf
configuration information
request
resource
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PCT/CN2022/084550
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English (en)
French (fr)
Inventor
张不方
李健翔
张大钧
全海洋
Original Assignee
大唐移动通信设备有限公司
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Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to EP22779098.7A priority Critical patent/EP4319020A1/en
Publication of WO2022206918A1 publication Critical patent/WO2022206918A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a method and apparatus for determining PRS resources.
  • the positioning technology related to the downlink radio access technology is mainly based on the downlink positioning reference signal (Down Link Positioning Reference Signal, DL-PRS) for measurement, and calculates and obtains the corresponding position information according to the measurement results.
  • DL-PRS Down Link Positioning Reference Signal
  • LMF Location Management Function
  • Each transmission point (Transmission Reception Point, TRP) in the base station is configured with corresponding DL-PRS resources.
  • TRP Transmission Reception Point
  • the LMF acquires the configuration information of the DL-PRS preconfigured by the base station from the base station.
  • the LMF selects part of the DL-PRS resources from the DL-PRS configuration information, and uses them as part of the positioning assistance data to deliver them to the UE through the ProvideAssistanceData message. As shown in Figure 1.
  • the LMF selects some DL-PRS resources from the DL-PRS configuration information, and uses them as part of the positioning assistance data to be delivered to the UE through the ProvideAssistanceData message, as shown in picture 2.
  • the LMF actively provides positioning assistance data information to the UE.
  • Step 1 The LMF actively sends the ProvideAssistanceData message carrying the DL-PRS configuration information to the UE.
  • the UE requests to obtain positioning assistance data information from the LMF.
  • Step 1 The UE sends a RequestAssistanceData message to the LMF.
  • Step 2 After receiving the message, the LMF sends a ProvideAssistanceData message to the UE as a response, which carries the configuration information of the DL-PRS.
  • the LMF acquires the DL-PRS resources preconfigured by the base station.
  • the base station configures the corresponding DL-PRS resources.
  • the LMF needs to obtain the DL-PRS resources configured by the base station, the LMF sends a TRP information request (Information Request) message to request to obtain the DL-PRS resources configured by the TRP under the base station, such as shown in Figure 3.
  • TRP information request Information Request
  • Step 1 The LMF sends a TRP Information Request message to the base station (NG-RAN node), requesting to obtain the DL-PRS resources configured by the TRP under the base station.
  • Step 2 The base station sends a TRP information response (information Response) response message to the LMF, and the response message carries the configuration information of the PRS resources of different TRP configurations under the base station.
  • TRP information response information Response
  • the downlink RAT-related positioning technology is mainly based on the downlink positioning reference signal (DL-PRS) for measurement, and calculates and obtains corresponding position information according to the measurement result.
  • DL-PRS downlink positioning reference signal
  • each TRP in the base station will still transmit all its pre-configured DL-PRS signals. Waste of reference signal (Positioning Reference Signal, PRS) resources.
  • PRS Positioning Reference Signal
  • the TRP in the base station is configured based on each cell (cell) when configuring the PRS, without referring to the requirements of each UE, which may lead to insufficient positioning accuracy of the UE, resulting in positioning failure.
  • the embodiments of the present application provide a method and an apparatus for determining PRS configuration information, so as to realize flexible and dynamic configuration of DL-PRS according to UE requirements, improve network efficiency, and ensure positioning accuracy.
  • a method for determining a PRS resource includes:
  • a PRS resource configuration request is sent to the LMF based on a set of available PRS configuration information preconfigured by the LMF.
  • the terminal obtains a set of available PRS configuration information pre-configured by the LMF; and based on the set of available PRS configuration information pre-configured by the LMF, a PRS resource configuration request is sent to the LMF, thereby realizing DL-PRS can be configured flexibly and dynamically according to UE requirements, which improves network efficiency and ensures positioning accuracy.
  • the PRS resource configuration request sent to the LMF includes at least one of the following:
  • the terminal selects the PRS configuration information based on the available PRS configuration information set preconfigured by the LMF;
  • the terminal determines, based on the preconfigured set of PRS configuration information and the PRS resources that have been obtained from the LMF, the configuration information of the PRS resources to be requested to be changed;
  • the PRS configuration information selected by the terminal includes at least one of the following:
  • BWP Bandwidth Part, BWP identification
  • the duration of the DL-PRS resource is the duration of the DL-PRS resource.
  • the configuration information of the PRS resource requested to be changed includes at least one of the following:
  • the location frequency layer ID corresponding to the requested increase or decrease of the DL-PRS resource
  • the base station ID corresponding to the requested increase or decrease of the DL-PRS resource
  • the configuration information related to the beam direction of the DL-PRS resource includes at least one of the following:
  • the synchronization signal and physical broadcast channel block index (Synchronization Signal and Physical Broadcast CHannel block index, SSB_index) corresponding to the optimal beam receiving direction.
  • the LMF after sending the PRS resource configuration request to the LMF, it also includes performing at least one of the following operations:
  • the PRS resource configuration request response message returned by the LMF is received, but:
  • the response message indicates that the DL-PRS configuration information requested by the terminal is accepted, perform at least one of the following operations:
  • At least one of the following operations is performed:
  • a method for determining a PRS resource includes:
  • the LMF sends a Long Term Evolution Positioning Protocol (LPP) message to the terminal;
  • LPF Long Term Evolution Positioning Protocol
  • the LMF receives the PRS resource configuration request message sent by the terminal.
  • the LPP message includes at least one of the following:
  • the maximum number of PRS requests that the terminal side initiates PRS changes
  • the terminal side initiates the timer configuration information related to the PRS change.
  • the preconfigured set of available PRS configuration information is used for the terminal to initiate a dynamic PRS request, and includes at least one of the following information:
  • the positioning frequency layer ID corresponding to the available DL-PRS resources
  • the base station ID corresponding to the available DL-PRS resource
  • the timer configuration information related to the PRS change initiated by the terminal side includes at least one of the following information:
  • Configuration information of a first timer where the first timer is a response timer after the terminal sends the request;
  • Configuration information of a second timer where the second timer is an interval timer between two consecutive sending of the request by the terminal.
  • the LMF performs any one of the following:
  • a PRS resource configuration request response message is returned to the terminal, which carries the DL-PRS requested by the terminal. an indication that the configuration information has been configured;
  • a DL-PRS reconfiguration message is sent to the base station, which carries the DL-PRS configuration information requested by the terminal.
  • the PRS resource configuration request message sent by the terminal and received by the LMF includes DL-PRS configuration information requested by the terminal to change, and the DL-PRS configuration information requested to be changed is at least one of the following:
  • the method also includes: the LMF performing at least one of the following:
  • a PRS resource configuration request response message is returned to the terminal, which carries the DL-PRS configuration information requested by the terminal to be changed. - an indication that the PRS configuration information has been configured;
  • a DL-PRS reconfiguration message is sent to the base station, which carries the DL-PRS configuration requested by the terminal to be changed information.
  • the PRS resource configuration request message sent by the terminal and received by the LMF includes DL-PRS configuration information requested by the terminal to change, and the DL-PRS configuration information requested to be changed is at least one of the following:
  • the DL-PRS resource set ID for which reduction is requested
  • the method also includes: the LMF performing at least one of the following:
  • a PRS resource configuration request response message is returned to the terminal, which carries an indication that the changed DL-PRS configuration information requested by the terminal cannot be accepted;
  • a DL-PRS reconfiguration message is sent to the base station, which carries the DL-PRS configuration information requested by the terminal to be changed.
  • the LMF performs at least one of the following:
  • the DL-PRS resource requested by the terminal to change the beam direction is currently used by other positioning terminals, send a response message to the terminal indicating that the configuration information related to the beam direction of the terminal's DL-PRS resource cannot be accepted;
  • a DL-PRS reconfiguration message is sent to the base station, which carries the configuration information related to the beam direction of the DL-PRS resource requested by the terminal.
  • the method further includes: the LMF receives a reconfiguration response message fed back by the base station, where the reconfiguration response message is a response of the base station to the DL-PRS reconfiguration message, and then the LMF performs at least one of the following :
  • a PRS resource configuration request response message is sent to the terminal, which carries the indication that the DL-PRS resource requested by the terminal has been accepted, and/or Configured DL-PRS resource configuration information;
  • a PRS resource configuration request response message is sent to the terminal, which carries an indication that the DL-PRS resource requested by the terminal is not accepted.
  • a method for determining a PRS resource includes:
  • the base station receives the DL-PRS reconfiguration message carrying the PRS configuration information sent by the LMF;
  • the base station obtains the DL-PRS configuration information requested by the terminal from the DL-PRS reconfiguration message, where the DL-PRS configuration information comes from the set of PRS configuration information preconfigured by the terminal based on the LMF and sent to the LMF. PRS resource configuration request.
  • the base station after the base station receives the DL-PRS reconfiguration message sent by the LMF, the base station performs at least one of the following:
  • the base station can reconfigure the PRS resources based on the DL-PRS reconfiguration message, return a reconfiguration response message to the LMF, which carries an indication that the base station has completed the PRS configuration;
  • a reconfiguration response message is returned to the LMF, which carries an indication indicating that the base station cannot configure the requested PRS resource.
  • a device for determining a PRS resource provided by an embodiment of the present application includes:
  • the processor is used for calling the program instructions stored in the memory, and executes according to the obtained program:
  • a PRS resource configuration request is sent to the LMF based on a set of available PRS configuration information preconfigured by the LMF.
  • the PRS resource configuration request sent to the LMF includes at least one of the following:
  • the selected PRS configuration information Based on the set of available PRS configuration information preconfigured by the LMF, the selected PRS configuration information;
  • the selected PRS configuration information includes at least one of the following:
  • the duration of the DL-PRS resource is the duration of the DL-PRS resource.
  • the configuration information of the PRS resource requested to be changed includes at least one of the following:
  • the location frequency layer ID corresponding to the requested increase or decrease of the DL-PRS resource
  • the base station ID corresponding to the requested increase or decrease of the DL-PRS resource
  • the configuration information related to the beam direction of the DL-PRS resource includes at least one of the following:
  • the LMF after sending the PRS resource configuration request to the LMF, it also includes performing at least one of the following operations:
  • the PRS resource configuration request response message returned by the LMF is received, but:
  • the response message indicates that the DL-PRS configuration information requested by the terminal is accepted, perform at least one of the following operations:
  • At least one of the following operations is performed:
  • a device for determining a PRS resource provided by an embodiment of the present application includes:
  • the processor is used for calling the program instructions stored in the memory, and executes according to the obtained program:
  • the LPP message includes at least one of the following:
  • the maximum number of PRS requests that the terminal side initiates PRS changes
  • the terminal side initiates the timer configuration information related to the PRS change.
  • the preconfigured set of available PRS configuration information is used for the terminal to initiate a dynamic PRS request, and includes at least one of the following information:
  • the positioning frequency layer ID corresponding to the available DL-PRS resources
  • the base station ID corresponding to the available DL-PRS resource
  • the timer configuration information related to the PRS change initiated by the terminal side includes at least one of the following information:
  • Configuration information of a first timer where the first timer is a response timer after the terminal sends the request;
  • Configuration information of a second timer where the second timer is an interval timer between two consecutive sending of the request by the terminal.
  • the LMF performs any one of the following:
  • a PRS resource configuration request response message is returned to the terminal, which carries the DL-PRS requested by the terminal. an indication that the configuration information has been configured;
  • a DL-PRS reconfiguration message is sent to the base station, which carries the DL-PRS configuration information requested by the terminal.
  • the received PRS resource configuration request message sent by the terminal includes DL-PRS configuration information requested by the terminal to change, and the DL-PRS configuration information requested to be changed is at least one of the following:
  • the apparatus also includes: the LMF performs at least one of the following:
  • a PRS resource configuration request response message is returned to the terminal, which carries the DL-PRS configuration information requested by the terminal to be changed. - an indication that the PRS configuration information has been configured;
  • a DL-PRS reconfiguration message is sent to the base station, which carries the DL-PRS configuration requested by the terminal to be changed information.
  • the received PRS resource configuration request message sent by the terminal includes DL-PRS configuration information requested by the terminal to change, and the DL-PRS configuration information requested to be changed is at least one of the following:
  • the DL-PRS resource set ID for which reduction is requested
  • the apparatus also includes: the LMF performs at least one of the following:
  • a PRS resource configuration request response message is returned to the terminal, which carries an indication that the DL-PRS configuration information requested by the terminal cannot be accepted;
  • a DL-PRS reconfiguration message is sent to the base station, which carries the DL-PRS configuration information requested by the terminal to be changed.
  • the LMF performs at least one of the following:
  • a PRS resource configuration request response message is sent to the terminal, wherein the configuration information related to the beam direction carrying the DL-PRS resource of the terminal cannot be used by other positioning terminals. instructions accepted;
  • a DL-PRS reconfiguration message is sent to the base station, which carries the configuration information related to the beam direction of the DL-PRS resource requested by the terminal.
  • the processor is further configured to: receive a reconfiguration response message fed back by the base station, where the reconfiguration response message is a response of the base station to the DL-PRS reconfiguration message, and then perform at least one of the following:
  • a PRS resource configuration request response message is sent to the terminal, which carries the indication that the DL-PRS resource requested by the terminal has been accepted, and/or Configured DL-PRS resource configuration information;
  • a PRS resource configuration request response message is sent to the terminal, which carries an indication that the DL-PRS resource requested by the terminal is not accepted.
  • a device for determining PRS resources includes:
  • the processor is used for calling the program instructions stored in the memory, and executes according to the obtained program:
  • the DL-PRS configuration information requested by the terminal is obtained from the PRS reconfiguration message, where the DL-PRS configuration information comes from the PRS resource configuration request sent by the terminal to the LMF based on the set of PRS configuration information preconfigured by the LMF.
  • the processor is further configured to perform at least one of the following:
  • a reconfiguration response message is returned to the LMF, which carries an indication that the base station has completed the PRS configuration;
  • a reconfiguration response message is returned to the LMF, which carries an indication indicating that the base station cannot configure the requested PRS resource.
  • another device for determining PRS resources includes:
  • an acquisition unit configured to acquire a set of available PRS configuration information preconfigured by the LMF
  • a requesting unit configured to send a PRS resource configuration request to the LMF based on a set of available PRS configuration information preconfigured by the LMF.
  • another device for determining PRS resources includes:
  • a sending unit configured to send an LPP message to the terminal
  • a receiving unit configured to receive a PRS resource configuration request message sent by the terminal.
  • another device for determining PRS resources includes:
  • a receiving unit configured to receive a DL-PRS reconfiguration message that carries PRS configuration information and is sent by the LMF;
  • the obtaining unit is configured to obtain the DL-PRS configuration information requested by the terminal from the PRS reconfiguration message, where the DL-PRS configuration information comes from the set of PRS configuration information preconfigured by the terminal based on the LMF, and is sent to the LMF. PRS resource configuration request.
  • Another embodiment of the present application provides a computing device, which includes a memory and a processor, wherein the memory is used for storing program instructions, and the processor is used for calling the program instructions stored in the memory, according to the obtained program Perform any of the above methods.
  • Another embodiment of the present application provides a computer storage medium, where the computer storage medium stores computer-executable instructions, where the computer-executable instructions are used to cause the computer to execute any one of the foregoing methods.
  • FIG. 1 is a schematic diagram of ProvideAssistanceData message transmission in the prior art
  • Fig. 2 is a schematic diagram of RequestAssistanceData and ProvideAssistanceData message transmission in the prior art
  • FIG. 4 is a schematic flowchart of a method for determining PRS configuration information on a terminal side provided by an embodiment of the present application
  • FIG. 5 is a schematic flowchart of a method for determining PRS configuration information on an LMF side provided by an embodiment of the present application
  • FIG. 6 is a schematic flowchart of a method for determining PRS configuration information on a base station side according to an embodiment of the present application
  • FIG. 7 is a schematic structural diagram of a device for determining PRS configuration information on a terminal side provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of an apparatus for determining PRS configuration information on the LMF side according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of an apparatus for determining PRS configuration information on a base station side according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of another apparatus for determining PRS configuration information on a terminal side provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of another apparatus for determining PRS configuration information on the LMF side according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of another apparatus for determining PRS configuration information on a base station side according to an embodiment of the present application.
  • the embodiments of the present application provide a method and an apparatus for determining PRS configuration information, so as to realize flexible and dynamic configuration of DL-PRS according to UE requirements, improve network efficiency, and ensure positioning accuracy.
  • the method and the device are conceived based on the same application. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and repeated descriptions will not be repeated here.
  • the applicable system may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) general packet Wireless service (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), general Mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G system and 5G New Radio (New Radio, NR) system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband Code Division Multiple Access
  • General packet Wireless service general packet Radio service
  • GPRS general packet Wireless service
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • FDD frequency division duplex
  • TDD time division duplex
  • UMTS universal mobile t
  • the terminal device involved in the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem.
  • the name of the terminal equipment may be different.
  • the terminal equipment can be called user equipment.
  • the wireless end devices may communicate with one or more core networks via the RAN, and the wireless end devices may be mobile end devices such as mobile phones (or "cellular" phones) and computers with mobile end devices, for example, which may be portable , pocket, handheld, computer built-in or vehicle mounted mobile devices that exchange language and/or data with the radio access network.
  • Wireless terminal equipment may also be referred to as system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in the embodiments of the present application.
  • the network device involved in the embodiments of the present application may be a base station, and the base station may include multiple cells.
  • the base station may also be called an access point, or may refer to a device in the access network that communicates with wireless terminal devices through one or more sectors on the air interface, or other names.
  • the network device can be used to convert received air frames to and from internet protocol (IP) packets and act as a router between the wireless end device and the rest of the access network, which can include IP Communications network.
  • IP internet protocol
  • the network devices may also coordinate attribute management for the air interface.
  • the network device involved in the embodiments of the present application may be a global system for mobile communications (GSM) or a network device (base transceiver station, BTS) in code division multiple access (code division multiple access, CDMA). ), it can also be a network device (NodeB) in wide-band code division multiple access (WCDMA), or it can be an evolved network device in a long term evolution (LTE) system (evolutional node B, eNB or e-NodeB), 5G base station in 5G network architecture (next generation system), but also home evolved node B (HeNB), relay node (relay node), home base station ( femto), pico base station (pico), etc., which are not limited in the embodiments of the present application.
  • GSM global system for mobile communications
  • BTS base transceiver station
  • CDMA code division multiple access
  • NodeB wide-band code division multiple access
  • LTE long term evolution
  • HeNB home evolved node B
  • HeNB home evolved node B
  • the UE is based on the available PRS configuration information set pre-configured by the LMF, and/or the maximum number of times the UE triggers PRS changes configured by the LMF, and/or the UE triggers the PRS configuration request related by the LMF configuration. Timer configuration information and other information to dynamically trigger a PRS configuration request, so as to realize flexible and dynamic configuration of DL-PRS according to UE requirements, thereby improving network efficiency and ensuring positioning accuracy.
  • the set of available PRS configuration information pre-configured by the LMF refers to the range of PRS resources configured by the LMF for the UE that can be used by the UE to initiate a PRS configuration request , that is, when the UE initiates a PRS configuration request, the requested PRS configuration can only be the PRS configuration in this preconfigured PRS configuration information set.
  • the UE initiates a PRS resource configuration request based on the set of PRS configuration information (or referred to as the set of available PRS configuration information) carried in the LPP message 1 (eg, message 1) that the UE can dynamically request/change. Specifically, there can be the following three situations:
  • the UE selects the PRS resource configuration information from the dynamically changeable PRS configuration information issued by the LMF based on its own channel environment conditions, positioning accuracy requirements, and/or measurement results, and assigns the selected PRS resource configuration information.
  • the PRS resource configuration information is carried in the PRS resource configuration request message and reported to the LMF.
  • the PRS resource configuration information selected by the UE includes at least one of the following:
  • the duration of the DL-PRS resource is the duration of the DL-PRS resource.
  • the UE can carry the request in the PRS resource configuration request message based on the PRS configuration Change the configuration information of the configured PRS resource and report it to the LMF.
  • the PRS resource configuration information requested by the UE to change may include at least one of the following:
  • the UE can also determine the configuration information related to the beam direction of the DL-PRS resource based on its measurement result, or the reception of the synchronization signal and the physical broadcast channel block (Synchronization Signal and Physical Broadcast CHannel block, SSB). , for example including at least one of the following:
  • the configuration information related to the beam direction of the DL-PRS resource can be reported to the LMF through the PRS resource configuration request message.
  • the UE After the UE sends the message carrying the PRS resource configuration request, it updates the number of PRS requests on the UE side (that is, the number of times the DL-PRS configuration request is initiated) N; and, optionally, when the LPP message 1 contains a timing
  • the UE In response to the configuration information of the device (for example, the timing duration of the response timer T1, and/or the timing duration of the request interval timer T2), the UE will also perform at least one of the following steps:
  • a request interval timer T2 (which may also be referred to as a second timer) is started.
  • the function of the response timer T1 is that if the UE receives a response message from the LMF before the response timer T1 expires, it can be considered that the PRS resource configuration is successful; otherwise, if the current accumulated number of times N of initiating a DL-PRS configuration request is made If the preset threshold is not exceeded, it is determined that it is necessary to continue to initiate a DL-PRS configuration request.
  • the function of the request interval timer T2 that is, the time interval between two consecutive DL-PRS configuration requests, for example, the request interval timer T2 is started when the DL-PRS configuration request is initiated. If the DL-PRS configuration request continues to be initiated, when the timer T2 expires, the DL-PRS configuration request is initiated again.
  • the UE receives the PRS resource configuration request response message fed back by the LMF, then:
  • the UE performs at least one of the following:
  • the UE closes the response timer T1;
  • the UE closes the interval timer T2;
  • the UE performs at least one of the following:
  • the UE closes the response timer T1;
  • the UE performs at least one of the following:
  • the UE performs at least one of the following:
  • the measurement is performed based on the PRS in the assistance information configured by the LMF for the UE.
  • the UE before measuring the PRS in the assistance information configured by the LMF, the UE sends a RequestAssistanceData message that does not carry the PRS configuration information to the LMF to request to obtain the PRS configured on the LMF side.
  • the UE performs at least one of the following:
  • the UE performs at least one of the following:
  • the measurement is performed based on the PRS in the assistance information configured by the LMF for the UE.
  • the UE before measuring the PRS in the assistance information configured by the LMF, the UE sends a RequestAssistanceData message that does not carry the PRS configuration information to the LMF to request to obtain the PRS configured on the LMF side.
  • the LMF sends an LPP message 1 to the UE, which includes:
  • the UE side initiates PRS change related timer configuration information.
  • the available DL-PRS configuration information set includes at least one of the following:
  • the positioning frequency layer ID corresponding to the available DL-PRS resources
  • the base station ID corresponding to the available DL-PRS resource
  • the timer configuration information related to the PRS change initiated by the UE side includes at least one of the following:
  • the response timer configuration after the UE sends the PRS resource configuration request message is the response timer configuration after the UE sends the PRS resource configuration request message.
  • the LMF If the DL-PRS configuration information requested by the UE is in the set of DL-PRS configuration information pre-configured by the base station obtained by the LMF from the base station, the LMF returns a PRS resource configuration request response message to the UE, and indicates the DL-PRS requested by the UE in it.
  • the configuration information has already been configured.
  • the LMF sends a DL-PRS reconfiguration message to the base station, which carries the DL-PRS configuration information requested by the UE .
  • the DL-PRS configuration information requested by the UE to be changed is at least one of the following:
  • the LMF If the DL-PRS configuration information requested by the UE to be changed is in the set of DL-PRS configuration information pre-configured by the base station obtained by the LMF from the base station, the LMF returns a PRS resource configuration request response message to the UE, and indicates the DL-PRS configuration information requested by the UE to be changed. -PRS configuration information has been configured.
  • the LMF sends a DL-PRS reconfiguration message to the base station, which carries the DL-PRS reconfiguration message requested by the UE to change configuration information.
  • the DL-PRS configuration information requested by the UE to be changed is at least one of the following:
  • the DL-PRS resource set ID for which reduction is requested
  • the LMF first checks whether these DL-PRS resources requested by the UE are currently used by other positioning terminals. If these DL-PRS resources have not been used by other positioning terminals, then:
  • the LMF sends a DL-PRS reconfiguration message to the base station, which carries the DL-PRS configuration information requested by the UE to be changed.
  • the LMF rejects the UE's request and returns a PRS resource configuration request response message to the UE, in which it indicates that the DL-PRS configuration information requested by the UE to change cannot be accepted.
  • the LMF If the LMF receives a RequestAssistanceData message or other LPP message that contains a request to change the beam direction DL-PRS configuration sent by the UE, the LMF first checks whether the DL-PRS resource requested by the UE to change the beam direction is currently used by other positioning terminals:
  • the LMF sends a DL-PRS reconfiguration message to the base station, which carries the DL-PRS configuration that the UE requests to change the beam direction;
  • the LMF rejects the UE's request, and returns a PRS resource configuration request response message to the UE, in which it indicates that the DL-PRS configuration that the UE requests to change the beam direction cannot be accepted.
  • the LMF sends a PRS resource configuration request response message to the UE, indicating that the DL-PRS resource requested by the UE has been accepted, and/or the message carries the reconfigured DL-PRS resource;
  • the LMF sends a PRS resource configuration request response message to the UE, indicating that the DL-PRS resource requested by the UE is not accepted.
  • the base station After receiving the DL-PRS reconfiguration message with P carrying PRS configuration information sent by the LMF, the base station obtains the DL-PRS configuration information requested by the terminal from the DL-PRS reconfiguration message, where the DL-PRS configuration information comes from The terminal sends a PRS resource configuration request to the LMF based on the set of PRS configuration information preconfigured by the LMF.
  • the base station reconfigures the corresponding PRS based on the reconfiguration message, and returns a PRS reconfiguration response message to the LMF, wherein the base station is instructed to complete the configuration of the corresponding PRS.
  • the base station if the base station cannot configure the PRS according to the PRS configuration information in the reconfiguration message, the base station returns a PRS reconfiguration response message to the LMF, which indicates that the base station cannot configure the corresponding PRS configuration.
  • the PRS resource configuration request message is sent by the terminal to the LMF, and the message can be an existing RequestAssistanceData message or other LPP messages;
  • the PRS resource configuration request response message is a response to the PRS resource configuration request message sent by the LMF to the terminal, and the message can be an existing ProvideAssistanceData message or other LPP messages;
  • the DL-PRS reconfiguration message is sent by the LMF to the base station, and the message can be an existing PositioningInformationRequest message or other NR Positioning Protocol A (NRPPa) message;
  • NRPPa NR Positioning Protocol A
  • the DL-PRS reconfiguration response message is a response to the DL-PRS reconfiguration message sent by the base station to the LMF, and the message may be an existing PositioningInformationResponse message or other NRPPa messages.
  • Embodiment 1 The LMF preconfigures a set of available DL-PRS configuration information for it based on the PRS resources configured by the base station.
  • Step 1 The LMF sends a TRP information Request message to the base station, requesting to obtain the PRS resources configured by the base station.
  • Step 2 The base station sends a TRP information Response response message to the LMF, and the response message carries the configuration information of the PRS resources of different TRP configurations under the base station.
  • Step 3 After receiving the PRS configuration information sent by the base station, the LMF preconfigures a set of available DL-PRS configuration information for the UE from the PRS configuration information.
  • Step 4 The LMF delivers LPP message 1 to the UE.
  • the LMF before the LMF delivers the LPP message 1 to the UE, the LMF has configured the corresponding PRS resource for the UE, and delivered it to the UE through the ProvideAssistanceData message as part of the assistance information.
  • LPP message 1 which includes at least one of the following:
  • the maximum number of PRS requests that the UE side initiates PRS changes
  • the range of available DL-PRS configuration information sets includes at least one of the following:
  • the ID of the DL-PRS resource set that can be requested to be changed
  • the ID of the DL-PRS resource that can be requested to be changed is changed.
  • the configuration information of DL-PRS resources that can be dynamically requested includes at least one of the following:
  • the timer configuration information related to the PRS change initiated by the UE side includes at least one of the following:
  • Embodiment 2 The LMF requests the base station to reconfigure the PRS based on the PRS resource configuration request message initiated by the UE.
  • Step 1 The LMF sends a DL-PRS reconfiguration message to the base station, which carries the DL-PRS configuration information requested by the UE.
  • Step 2a The base station reconfigures the corresponding PRS based on the reconfiguration message, and returns a PRS reconfiguration response message to the LMF, wherein the base station is instructed to complete the configuration of the corresponding PRS.
  • Step 2b When the base station cannot configure the PRS according to the PRS configuration information in the reconfiguration message, the base station returns a PRS reconfiguration response message to the LMF, which indicates that the base station cannot configure the corresponding PRS configuration.
  • Embodiment 3 The UE requests corresponding DL-PRS configuration information based on the available PRS configuration information carried in the LPP message 1.
  • Embodiment 3-1 When the timer is not configured on the UE side, the UE initiates a DL-PRS resource configuration request based on the dynamically changeable PRS configuration information carried in the LPP message 1.
  • Step 1a the UE selects a corresponding PRS resource configuration within the range of the available PRS configuration information set issued by the LMF based on its own channel environment conditions, positioning accuracy requirements, and/or measurement results, and configures the The PRS resource configuration information is carried in the DL-PRS resource configuration request message and reported to the LMF.
  • the DL-PRS resource configuration information requested by the UE includes at least one of the following:
  • the duration of the DL-PRS resource is the duration of the DL-PRS resource.
  • Step 1b Optionally, if the UE has obtained the PRS resource configured by the LMF for the UE from the LMF before requesting the PRS resource configuration information, the UE may, on the basis of the PRS configuration, in the DL-PRS resource configuration request message It carries the configuration information of the PRS resource that can request to change the configuration, and reports it to the LMF.
  • the PRS resource configuration information requested by the UE to change may include at least one of the following:
  • Step 1c the UE may also determine an optimal beam receiving direction based on its measurement result or the receiving condition of the SSB, and report it to the LMF through the DL-PRS resource configuration request message.
  • the message includes at least one of the following:
  • the best beam receiving direction SSB_index The best beam receiving direction SSB_index.
  • Step 2 Optionally, after sending the DL-PRS resource configuration request message, the UE updates the number N of PRS requests on the UE side.
  • Step 3a Optionally, if the LMF receives the DL-PRS resource configuration request message that is sent by the UE and carries the DL-PRS configuration information selected by the UE, the LMF determines whether the DL-PRS configuration information requested by the UE is obtained from the base station on the LMF. in the DL-PRS configuration information set configured by the base station.
  • Step 3b Optionally, (if the LMF has delivered the DL-PRS resource configured for it to the UE through the ProvideAssistanceData message), the LMF receives the DL-PRS resource configuration request message sent by the UE and carries the request to change the DL-PRS configuration information, And when the DL-PRS configuration information requested by the UE to be changed is at least one of the following:
  • the LMF judges whether the DL-PRS configuration information requested by the UE to be changed is in the DL-PRS configuration information set obtained by the LMF from the base station.
  • Step 3c Optionally, (if the LMF has delivered the DL-PRS resources configured for the UE to the UE through the ProvideAssistanceData message), the LMF receives the DL-PRS resource configuration request message sent by the UE and carries the request to change the DL-PRS configuration information, And when the DL-PRS configuration information requested by the UE to be changed is at least one of the following:
  • the DL-PRS resource set ID for which reduction is requested
  • the LMF first checks whether the DL-PRS resources requested by the UE to be reduced are currently used by other positioning terminals.
  • Step 3d If the LMF receives a DL-PRS resource configuration request message sent by the UE including a request to change the DL-PRS beam direction, the LMF first checks whether the DL-PRS resource requested by the UE to change the beam direction is currently used by other positioning terminals.
  • Step 4a For steps 3a and 3b, if the DL-PRS configuration information requested by the UE is in the set of DL-PRS configuration information pre-configured by the base station obtained by the LMF from the base station, the LMF returns a DL-PRS resource configuration request response message to the UE. , in which it indicates that the DL-PRS configuration information requested by the UE has been configured.
  • Step 4b For steps 3a and 3b, if the DL-PRS configuration information requested by the UE is not in the set of DL-PRS configuration information pre-configured by the base station obtained by the LMF from the base station, the LMF sends a DL-PRS reconfiguration message to the base station, wherein Carry the DL-PRS configuration information requested by the UE.
  • Step 4c For steps 3c and 3d, if the LMF detects that the PRS resource requested by the UE to be changed has not been used by other positioning terminals, the LMF sends a DL-PRS reconfiguration message to the base station, which carries the PRS configuration information requested by the UE to be changed.
  • Step 4d For steps 3c and 3d, if the LMF detects that the DL-PRS resource requested by the UE has been used by other positioning terminals, the LMF rejects the UE's request, and returns a PRS resource configuration request response message to the UE, and indicates the UE in it. The DL-PRS configuration information requested to be changed cannot be accepted.
  • Step 5 For Step 4b and Step 4c, perform the operations in Embodiment 2.
  • Step 6 For Step 5, after the LMF obtains the DL-PRS reconfiguration response message from the base station:
  • the LMF sends a PRS resource configuration request response message to the UE, indicating that the DL-PRS resource requested by the UE has been accepted, and/or The message carries the reconfigured DL-PRS resources.
  • the LMF sends a PRS resource configuration request response message to the UE, indicating that the DL-PRS resource requested by the UE is not accepted.
  • Step 7 For step 4a, step 4d and step 6, when the UE receives the PRS resource configuration request response message fed back by the LMF:
  • the UE If the message indicates that the DL-PRS configuration information requested by the UE is accepted, the UE updates its DL-PRS configuration based on the requested DL-PRS configuration information, and performs measurements on these configured DL-PRS resources;
  • the UE When the number of PRS requests N is less than the maximum number of requests configured by the LMF for the UE, the UE re-initiates a new DL-PRS configuration information request process;
  • the UE When the number of PRS requests N is equal to the maximum number of requests configured by the LMF for the UE, the UE performs measurement based on the PRS in the auxiliary information configured by the LMF;
  • the UE before measuring the PRS in the assistance information configured by the LMF, the UE sends a RequestAssistanceData message that does not carry the PRS configuration information to the LMF to request to obtain the PRS configured on the LMF side.
  • Embodiment 3-2 When the UE side configures the response timer T1 and/or the interval timer T2, the UE initiates a DL-PRS resource configuration request based on the available PRS configuration information set carried in the LPP message 1, and (when configured When the response timer T1 expires, the feedback message of the LMF is obtained before the response timer T1 expires.
  • Step 1a the UE selects PRS configuration information within the range of the available PRS configuration information set issued by the LMF based on its own channel environment conditions, positioning accuracy requirements, and/or measurement results, and selects the selected PRS configuration information.
  • the PRS configuration information is carried in the PRS resource configuration request message (or also referred to as the DL-PRS resource configuration request message) (that is, the UE requests to configure the corresponding DL-PRS resources for the UE according to the selected PRS configuration information), and reports to LMF.
  • the PRS configuration information selected by the UE includes at least one of the following:
  • the duration of the DL-PRS resource is the duration of the DL-PRS resource.
  • Step 1b Optionally, if the UE has obtained the PRS resource configured by the LMF for the UE from the LMF before requesting the PRS resource configuration information, the UE can carry the PRS resource configuration request message on the basis of the PRS configuration.
  • the PRS resource configuration information of the request to change the configuration is reported to the LMF.
  • the PRS resource configuration information requested by the UE to change may include at least one of the following:
  • Step 1c the UE may also determine an optimal beam receiving direction based on its measurement result or the receiving condition of the SSB, and report it to the LMF through the PRS resource configuration request message.
  • the message includes at least one of the following:
  • the best beam receiving direction SSB_index The best beam receiving direction SSB_index.
  • Step 2 Optionally, after sending the PRS resource configuration request message carrying the DL-PRS configuration information, the UE updates the PRS request times N on the UE side, and optionally, when the LPP message 1 contains the configuration information of the timer , the UE will also perform at least one of the following:
  • Step 3a Optionally, when the LMF receives the PRS resource configuration request message carrying the DL-PRS configuration information sent by the UE, the LMF determines whether the DL-PRS configuration information requested by the UE is in the DL-PRS configuration information of the base station that the LMF obtains from the base station. PRS configuration information set.
  • Step 3b (if the LMF has delivered the DL-PRS resources configured for it to the UE through the ProvideAssistanceData message) the LMF receives the PRS resource configuration request message sent by the UE that carries the request to change the DL-PRS configuration information, and when The DL-PRS configuration information requested by the UE to be changed is at least one of the following:
  • the LMF judges whether the DL-PRS configuration information requested by the UE is in the DL-PRS configuration information set configured by the base station obtained by the LMF from the base station.
  • Step 3c (if the LMF has delivered the DL-PRS resources configured for the UE to the UE through the ProvideAssistanceData message) the LMF receives the PRS resource configuration request message sent by the UE carrying the request to change the DL-PRS configuration information, and when The DL-PRS configuration information requested by the UE to be changed is at least one of the following:
  • the DL-PRS resource set ID for which reduction is requested
  • the LMF first checks whether the DL-PRS resources requested by the UE to be reduced are currently used by other positioning terminals.
  • Step 3d If the LMF receives the PRS resource configuration request message sent by the UE and contains a request to change the beam direction DL-PRS configuration, the LMF first checks whether the DL-PRS resource requested by the UE to change the beam direction is currently used by other positioning terminals.
  • Step 4a For steps 3a and 3b, if the DL-PRS configuration information requested by the UE is in the set of DL-PRS configuration information pre-configured by the base station obtained by the LMF from the base station, the LMF returns a PRS resource configuration request response message to the UE, and The DL-PRS configuration information indicating the UE request has been configured therein.
  • Step 4b For steps 3a and 3b, if the DL-PRS configuration information requested by the UE is not in the set of DL-PRS configuration information pre-configured by the base station obtained by the LMF from the base station, the LMF sends a DL-PRS reconfiguration message to the base station, wherein Carry the DL-PRS configuration information requested by the UE.
  • Step 4c For steps 3c and 3d, if the LMF detects that the DL-PRS resource requested by the UE has not been used by other positioning terminals, the LMF sends a DL-PRS reconfiguration message to the base station, which carries the PRS configuration information requested by the UE to be changed.
  • Step 4d For steps 3c and 3d, if the LMF detects that the DL-PRS resource requested by the UE has been used by other positioning terminals, the LMF rejects the UE's request, and returns a PRS resource configuration request response message to the UE, and indicates the UE in it. The DL-PRS configuration information requested to be changed cannot be accepted.
  • Step 5 For Step 4b and Step 4c, perform the operations in Embodiment 2.
  • Step 6 For Step 5, after the LMF obtains the DL-PRS reconfiguration response message from the base station:
  • the LMF sends a PRS resource configuration request response message to the UE, indicating that the DL-PRS resource requested by the UE has been accepted, and/or The message carries the reconfigured DL-PRS resources;
  • the LMF sends a PRS resource configuration request response message to the UE, indicating that the DL-PRS resource requested by the UE is not accepted.
  • Step 7 For Step 4a, Step 4d and Step 6, after the UE receives the PRS resource configuration request response message fed back by the LMF, or when the response timer T1 is configured, and the response timer T1 is configured before the response timer T1 expires.
  • PRS resource configuration request response message the UE will determine whether the DL-PRS configuration information requested by the UE is accepted based on the indication in the message.
  • Step 8a If the message indicates that the DL-PRS configuration information requested by the UE is accepted, then:
  • the UE closes the response timer T1 and the interval timer T2, and updates its DL-PRS configuration based on the requested DL-PRS configuration information. Measure on the configured DL-PRS resources;
  • the UE closes the response timer T1, updates its DL-PRS configuration based on the requested DL-PRS configuration information, and performs measurements on these configured DL-PRS resources;
  • the UE closes the interval timer T2, updates its DL-PRS configuration based on the requested DL-PRS configuration information, and performs measurements on these configured DL-PRS resources;
  • Step 8b If the DL-PRS configuration information indicated in the message indicating that the UE requests to change cannot be accepted, and:
  • the UE closes the response timer T1, and re-initiates a new DL-PRS configuration information request process after the interval timer T2 expires;
  • the UE closes the response timer T1 and re-initiates a new DL-PRS configuration information request process
  • the UE re-initiates a new DL-PRS configuration information request process after the interval timer T2 expires;
  • the UE closes the response timer T1 and the interval timer T2, and performs measurement based on the PRS in the auxiliary information configured by the LMF;
  • the UE before measuring the PRS in the assistance information configured by the LMF, the UE sends a RequestAssistanceData message that does not carry the PRS configuration information to the LMF to request to obtain the PRS configured on the LMF side.
  • the UE closes the response timer T1, and performs measurement based on the PRS in the auxiliary information configured by the LMF;
  • the UE before measuring the PRS in the assistance information configured by the LMF, the UE sends a RequestAssistanceData message that does not carry the PRS configuration information to the LMF to request to obtain the PRS configured on the LMF side.
  • the UE closes the interval timer T2, and performs measurement based on the PRS in the auxiliary information configured by the LMF;
  • the UE before measuring the PRS in the assistance information configured by the LMF, the UE sends a RequestAssistanceData message that does not carry the PRS configuration information to the LMF to request to obtain the PRS configured on the LMF side.
  • Embodiment 3-3 The UE side is configured with a response timer T1, but the feedback message of the LMF is not obtained before the response timer T1 times out.
  • Step 1a the UE selects a corresponding PRS resource configuration within the range of the available PRS configuration information set issued by the LMF based on its own channel environment conditions, positioning accuracy requirements, and/or measurement results, and configures the The PRS resource configuration information is carried in the PRS resource configuration request message and reported to the LMF.
  • the DL-PRS resource configuration information requested by the UE includes at least one of the following:
  • the duration of the DL-PRS resource is the duration of the DL-PRS resource.
  • Step 1b Optionally, if the UE has obtained the PRS resource configured by the LMF for the UE from the LMF before requesting the PRS resource configuration information, the UE can carry the PRS resource configuration request message in the PRS resource configuration request message on the basis of the PRS configuration.
  • the configuration information of the PRS resource that requests to change the configuration is reported to the LMF.
  • the PRS resource configuration information requested by the UE to change may include at least one of the following:
  • Step 1c the UE may also determine an optimal beam receiving direction based on its measurement result or the receiving condition of the SSB, and report it to the LMF through the PRS resource configuration request message.
  • the message includes at least one of the following:
  • the best beam receiving direction SSB_index The best beam receiving direction SSB_index.
  • Step 2 Optionally, after sending the PRS resource configuration request message carrying the DL-PRS configuration information, the UE updates the PRS request times N on the UE side, starts the response timer T1, and optionally, when the LPP message 1 contains When the configuration information of the timer is used, the UE will also start the request interval timer T2;
  • Step 3a Optionally, when the LMF receives the PRS resource configuration request message carrying the DL-PRS configuration information sent by the UE, the LMF determines whether the DL-PRS configuration information requested by the UE is in the DL-PRS configuration information of the base station that the LMF obtains from the base station. PRS configuration information set.
  • Step 3b (if the LMF has delivered the DL-PRS resources configured for it to the UE through the ProvideAssistanceData message) the LMF receives the PRS resource configuration request message sent by the UE that carries the request to change the DL-PRS configuration information, and when The DL-PRS configuration information requested by the UE to be changed is at least one of the following:
  • the LMF judges whether the DL-PRS configuration information requested by the UE is in the DL-PRS configuration information set configured by the base station obtained by the LMF from the base station.
  • Step 3c (if the LMF has delivered the DL-PRS resources configured for the UE to the UE through the ProvideAssistanceData message) the LMF receives the PRS resource configuration request message sent by the UE carrying the request to change the DL-PRS configuration information, and when The DL-PRS configuration information requested by the UE to be changed is at least one of the following:
  • the DL-PRS resource set ID for which reduction is requested
  • the LMF first checks whether the DL-PRS resources requested by the UE to be reduced are currently used by other positioning terminals.
  • Step 3d If the LMF receives a PRS resource configuration request message sent by the UE including a request to change the beam direction DL-PRS configuration, the LMF first checks whether the DL-PRS resource requested by the UE to change the beam direction is currently used by other positioning terminals.
  • Step 4a For steps 3a and 3b, if the DL-PRS configuration information requested by the UE is in the set of DL-PRS configuration information pre-configured by the base station obtained by the LMF from the base station, the LMF returns a PRS resource configuration request response message to the UE, and The DL-PRS configuration information indicating the UE request has been configured therein.
  • Step 4b For steps 3a and 3b, if the DL-PRS configuration information requested by the UE is not in the set of DL-PRS configuration information pre-configured by the base station obtained by the LMF from the base station, the LMF sends a DL-PRS reconfiguration message to the base station, wherein Carry the DL-PRS configuration information requested by the UE.
  • Step 4c For steps 3c and 3d, if the LMF detects that the DL-PRS resource requested by the UE to be changed has not been used by other positioning terminals, the LMF sends a DL-PRS reconfiguration message to the base station, which carries the DL-PRS configuration requested by the UE to be changed. information.
  • Step 4d For steps 3c and 3d, if the LMF detects that the DL-PRS resource requested by the UE has been used by other positioning terminals, the LMF rejects the UE's request, and returns a PRS resource configuration request response message to the UE, and indicates the UE in it. The DL-PRS configuration information requested to be changed cannot be accepted.
  • Step 5 For Step 4b and Step 4c, perform the operations in Embodiment 2.
  • Step 6 For Step 5, after the LMF obtains the DL-PRS reconfiguration response message from the base station:
  • the LMF sends a PRS resource configuration request response message to the UE, indicating that the DL-PRS resource requested by the UE has been accepted, and/or The message carries the reconfigured DL-PRS resources;
  • the LMF sends a PRS resource configuration request response message to the UE, indicating that the DL-PRS resource requested by the UE is not accepted.
  • Step 7 For step 4a, step 4d and step 6, the UE does not receive the PRS resource configuration request response message fed back by the LMF before the timer T1 expires, and the UE determines whether the number of PRS requests N is less than the maximum number of requests configured by the LMF for it. limit.
  • Step 8a If the number of PRS requests N is less than the maximum number of requests configured by the LMF for the UE, then:
  • the UE waits for the interval timer T2 to expire and then re-initiates a new DL-PRS configuration information request process;
  • the UE re-initiates a new DL-PRS configuration information request process.
  • Step 8a If the number of PRS requests N is equal to the maximum number of requests configured by the LMF for the UE, then:
  • the UE closes the interval timer T2, and performs measurement based on the PRS in the auxiliary information configured by the LMF;
  • the UE before measuring the PRS in the assistance information configured by the LMF, the UE sends a RequestAssistanceData message that does not carry the PRS configuration information to the LMF to request to obtain the PRS configured on the LMF side.
  • the UE measures the PRS in the auxiliary information configured for it based on the LMF;
  • the UE before measuring the PRS in the assistance information configured by the LMF, the UE sends a RequestAssistanceData message that does not carry the PRS configuration information to the LMF to request to obtain the PRS configured on the LMF side.
  • the UE combines the available PRS configuration information set preconfigured by the LMF based on its own needs, and may further combine the maximum number of times the UE triggers the PRS change, and/or the UE triggers the PRS configuration change related.
  • the timer configuration information is used to trigger the method of PRS configuration change, so as to realize flexible and dynamic configuration of DL-PRS according to UE requirements, so as to improve network efficiency and ensure positioning accuracy.
  • a method for determining PRS resources includes:
  • the terminal obtains a set of available PRS configuration information pre-configured by the LMF; and based on the set of available PRS configuration information pre-configured by the LMF, a PRS resource configuration request is sent to the LMF, thereby realizing DL-PRS can be configured flexibly and dynamically according to UE requirements, which improves network efficiency and ensures positioning accuracy.
  • a method for determining PRS resources includes:
  • the LMF sends an LPP message to the terminal
  • the LMF receives the PRS resource configuration request message sent by the terminal.
  • a method for determining PRS resources includes:
  • the base station receives a DL-PRS reconfiguration message that carries PRS configuration information and is sent by the LMF;
  • the base station acquires the DL-PRS configuration information requested by the terminal from the DL-PRS reconfiguration message, where the DL-PRS configuration information comes from a set of PRS configuration information preconfigured by the terminal based on the LMF, and sends the information to the LMF.
  • a device for determining a PRS resource provided by an embodiment of the present application includes:
  • a memory 620 for storing program instructions
  • the processor 600 is configured to call the program instructions stored in the memory, and execute according to the obtained program:
  • a PRS resource configuration request is sent to the LMF based on a set of available PRS configuration information preconfigured by the LMF.
  • the transceiver 610 is used for receiving and transmitting data under the control of the processor 600 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 600 and various circuits of memory represented by memory 620 are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 610 may be a number of elements, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium.
  • the user interface 630 may also be an interface capable of externally connecting the required equipment, and the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.
  • the processor 600 may be a CPU (central processor), an ASIC (Application Specific Integrated Circuit, an application-specific integrated circuit), an FPGA (Field-Programmable Gate Array, a field programmable gate array) or a CPLD (Complex Programmable Logic Device) , complex programmable logic devices).
  • CPU central processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device
  • a device for determining a PRS resource provided by an embodiment of the present application includes:
  • a memory 11 for storing program instructions
  • the processor 12 is configured to call the program instructions stored in the memory, and execute according to the obtained program:
  • the bus architecture may include any number of interconnected buses and bridges, specifically, one or more processors represented by the processor 12 and various circuits of the memory represented by the memory 11 are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • the processor 12 is responsible for managing the bus architecture and general processing, and the memory 11 may store data used by the processor 12 in performing operations.
  • the processor 12 may be a CPU (central processor), an ASIC (Application Specific Integrated Circuit, an application-specific integrated circuit), an FPGA (Field-Programmable Gate Array, a field programmable gate array) or a CPLD (Complex Programmable Logic Device) , complex programmable logic devices).
  • CPU central processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device
  • a device for determining a PRS resource provided by an embodiment of the present application includes:
  • a memory 520 for storing program instructions
  • the processor 500 is configured to call the program instructions stored in the memory, and execute according to the obtained program:
  • the DL-PRS configuration information obtained from the DL-PRS reconfiguration message, where the DL-PRS configuration information comes from the PRS resource configuration sent by the terminal to the LMF based on the set of PRS configuration information preconfigured by the LMF ask.
  • the transceiver 510 is used for receiving and transmitting data under the control of the processor 500 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 500 and various circuits of memory represented by memory 520 are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 510 may be multiple elements, ie, including a transmitter and a receiver, providing a means for communicating with various other devices over a transmission medium.
  • the processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.
  • the processor 500 may be a central processor (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device). , CPLD).
  • CPU central processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • FPGA field programmable gate array
  • CPLD complex programmable logic device
  • another apparatus for determining PRS resources includes:
  • an obtaining unit 21 configured to obtain a set of available PRS configuration information preconfigured by the LMF;
  • a requesting unit 22 configured to send a PRS resource configuration request to the LMF based on a set of available PRS configuration information preconfigured by the LMF.
  • another apparatus for determining PRS resources includes:
  • a sending unit 111 configured to send an LPP message to the terminal
  • the receiving unit 112 is configured to receive the PRS resource configuration request message sent by the terminal.
  • another apparatus for determining PRS resources includes:
  • a receiving unit 121 configured to receive a DL-PRS reconfiguration message that carries PRS configuration information and is sent by the LMF;
  • the obtaining unit 122 is configured to obtain the DL-PRS configuration information requested by the terminal from the DL-PRS reconfiguration message, where the DL-PRS configuration information comes from a set of PRS configuration information preconfigured by the terminal based on the LMF, and is sent to the PRS resource configuration request sent by LMF.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium.
  • the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .
  • An embodiment of the present application provides a computing device, and the computing device may specifically be a desktop computer, a portable computer, a smart phone, a tablet computer, a personal digital assistant (Personal Digital Assistant, PDA), and the like.
  • the computing device may include a central processing unit (Center Processing Unit, CPU), a memory, an input/output device, etc.
  • the input device may include a keyboard, a mouse, a touch screen, etc.
  • the output device may include a display device, such as a liquid crystal display (Liquid Crystal Display, LCD), Cathode Ray Tube (CRT), etc.
  • LCD Liquid Crystal Display
  • CRT Cathode Ray Tube
  • the memory may include read only memory (ROM) and random access memory (RAM) and provide the processor with program instructions and data stored in the memory.
  • ROM read only memory
  • RAM random access memory
  • the memory may be used to store the program of any of the methods provided in the embodiments of the present application.
  • the processor invokes the program instructions stored in the memory, and the processor is configured to execute any one of the methods provided in the embodiments of the present application according to the obtained program instructions.
  • An embodiment of the present application provides a computer storage medium for storing computer program instructions used for the apparatus provided by the above embodiment of the present application, which includes a program for executing any of the methods provided by the above embodiment of the present application.
  • the computer storage medium can be any available medium or data storage device that can be accessed by a computer, including but not limited to magnetic storage (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (eg CD, DVD, BD, HVD, etc.), and semiconductor memory (eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)), etc.
  • magnetic storage eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical storage eg CD, DVD, BD, HVD, etc.
  • semiconductor memory eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)
  • the processing flow of the above method can be implemented by a software program, and the software program can be stored in a storage medium, and when the stored software program is called, the above method steps are executed.
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

Abstract

本申请公开了一种PRS资源确定方法及装置,用以根据UE需求实现灵活动态的配置DL-PRS,提高网络效率,并保障定位精度。本申请提供的一种PRS资源确定方法,包括:确定LMF预配置的可用的PRS配置信息集合;基于所述可用的PRS配置信息集合,向所述LMF发送PRS资源配置请求。

Description

一种PRS资源确定方法及装置
相关申请的交叉引用
本申请要求在2021年04月02日提交中国专利局、申请号为202110360430.4、申请名称为“一种PRS资源确定方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域,尤其涉及一种PRS资源确定方法及装置。
背景技术
下行无线接入技术(Radio Access Technology,RAT)相关的定位技术主要是基于下行定位参考信号(Down Link Positioning Reference Signal,DL-PRS)来进行测量,并依据测量结果来计算获取相应的位置信息。
DL-PRS的配置流程介绍如下:
(1)、定位管理功能实体(Location Management Function,LMF)从基站获取到基站预配置的DL-PRS资源后,基于这些DL-PRS配置信息来为终端(User Equipment,UE)配置相应的DL-PRS资源。
基站中每个传输点(Transmission Reception Point,TRP)配置相应的DL-PRS资源。当有定位业务到达时,LMF从基站获取基站预配置的DL-PRS的配置信息。当LMF获取到基站的DL-PRS配置信息后,LMF从DL-PRS配置信息中选取部分DL-PRS资源,并将其作为定位辅助数据的一部分以通过辅助数据(ProvideAssistanceData)消息下发给UE,如图1所示。或者,当LMF收到UE的请求辅助数据(RequestAssistanceData)消息后,LMF从DL-PRS配置信息中选取部分DL-PRS资源,并将其作为定位辅助数据的一部分以通过ProvideAssistanceData消息下发给UE,如图2所示。
A、LMF主动提供定位辅助数据信息给UE。
步骤1:LMF主动发送携带了DL-PRS配置信息的ProvideAssistanceData消息给UE。
B、UE从LMF请求获取定位辅助数据信息。
步骤1:UE发送RequestAssistanceData消息给LMF。
步骤2:LMF收到该消息后,发送ProvideAssistanceData消息给UE作为相应,其中携带DL-PRS的配置信息。
(2)、LMF获取基站预配置的DL-PRS资源。
R16中,基站配置相应的DL-PRS资源,当LMF需要获取基站配置的DL-PRS资源时,LMF发送TRP信息请求(Information Request)消息,请求获取基站下的TRP配置的DL-PRS资源,如图3所示。
步骤1:LMF发送TRP Information Request消息给基站(NG-RAN node),请求获取基站下的TRP配置的DL-PRS资源。
步骤2:基站发送TRP信息响应(information Response)响应消息给LMF,并在响应消息中携带基站下的不同TRP配置的PRS资源的配置信息。
下行RAT相关的定位技术主要是基于下行定位参考信号(DL-PRS)来进行测量,并依据测量结果来计算获取相应的位置信息。但是在R16中,即使当前没有定位业务或者存在未被终端使用的DL-PRS时,基站中的每个TRP仍然会传输其预配置的所有的DL-PRS信号,这种情况下,会造成定位参考信号(Positioning Reference Signal,PRS)资源的浪费。另外,基站中的TRP在配置PRS时是基于每个小区(cell)来配置的,而没有参考每个UE的需求,可能会导致UE的定位精度不够,导致定位失败。
发明内容
本申请实施例提供了PRS配置信息的确定方法及装置,用以根据UE需求实现灵活动态的配置DL-PRS,提高网络效率,并保障定位精度。
在终端侧,本申请实施例提供的一种PRS资源确定方法,包括:
获取LMF预配置的可用的PRS配置信息集合;
基于所述LMF预配置的可用的PRS配置信息集合,向所述LMF发送PRS资源配置请求。
本申请实施例所述方法中,通过终端获取LMF预配置的可用的PRS配置信息集合;基于所述LMF预配置的可用的PRS配置信息集合,向所述LMF发送PRS资源配置请求,从而实现了根据UE需求灵活动态的请求配置DL-PRS,提高了网络效率,并保障了定位精度。
可选地,向所述LMF发送的PRS资源配置请求中,包括以下至少一项:
终端基于所述LMF预配置的可用的PRS配置信息集合,选择的PRS配置信息;
终端基于所述预配置的PRS配置信息集合及已经从LMF处获取到的PRS资源,确定的要请求变更的PRS资源的配置信息;
DL-PRS波束方向相关的配置信息。
可选地,所述终端选择的PRS配置信息包括以下至少一项:
DL-PRS资源对应的部分带宽(Bandwidth Part,BWP)标识(Identity Document,ID);
DL-PRS资源对应的定位频率层ID;
DL-PRS资源对应的基站ID;
DL-PRS资源对应的TRP ID;
DL-PRS资源集ID;
DL-PRS资源ID;
DL-PRS资源的周期;
DL-PRS资源的周期使用的重复次数;
DL-PRS资源的静默格式(muting pattern);
DL-PRS资源的传输时刻;
DL-PRS资源的持续时长。
可选地,所述请求变更的PRS资源的配置信息包括以下至少一项:
请求增加,或减少的DL-PRS资源对应的BWP ID;
请求增加,或减少的DL-PRS资源对应的定位频率层ID;
请求增加,或减少的DL-PRS资源对应的基站ID;
请求增加,或减少的DL-PRS资源对应的TRP ID;
请求增加,或减少的DL-PRS资源集ID;
请求增加,或减少的DL-PRS资源ID;
请求增加,或减少DL-PRS资源的周期;
请求增加,或减少DL-PRS资源的周期使用的重复次数;
请求变更DL-PRS资源的muting pattern;
请求增加,或减少DL-PRS资源的传输时刻;
请求增加,或减少DL-PRS资源的持续时长。
可选地,所述DL-PRS资源的波束方向相关的配置信息包括以下至少一项:
DL-PRS资源对应的基站ID;
DL-PRS资源对应的TRP ID;
DL-PRS资源对应的资源集ID;
最佳波束接收方向对应的同步信号和物理广播信道块索引(Synchronization Signal and Physical Broadcast CHannel block index,SSB_index)。
可选地,向所述LMF发送PRS资源配置请求之后,还包括执行以下至少一项操作:
更新向所述LMF发起PRS资源配置请求的次数;
根据LMF发送的定时器的配置信息,开启定时器,其中所述定时器包括第一定时器和/或第二定时器。
可选地,若未开启所述第一定时器,和/或,开启了所述第一定时器,但在所述第一定时器超时前,收到了LMF返回的PRS资源配置请求响应消息,则:
若所述响应消息中指示终端请求的DL-PRS配置信息被接受,则执行以下至少一项操作:
关闭第一定时器;
关闭第二定时器;
基于请求的DL-PRS配置信息更新终端的DL-PRS配置,并在更新后的DL-PRS配置的DL-PRS资源上进行测量;
若所述响应消息中指示终端请求变更的DL-PRS配置信息不能被接受,则执行以下至少一项操作:
等待第二定时器超时,并重新发起PRS资源配置请求;
关闭第一定时器;
重新发起PRS资源配置请求;
关闭第二定时器,并向LMF发起辅助信息请求过程;
向LMF发起辅助信息请求过程。
可选地,若开启了第一定时器,但在第一定时器超时前未收到LMF返回的PRS资源配置请求响应消息,则执行以下至少一项操作:
等待第二定时器超时后,再发起PRS资源配置请求;
重新发起PRS资源配置请求;
关闭第二定时器,并向LMF发起辅助信息请求过程;
向LMF发起辅助信息请求过程。
在LMF侧,本申请实施例提供的一种PRS资源确定方法,包括:
LMF向终端发送长期演进位置协议(Long Term Evolution Positioning Protocol,LPP)消息;
所述LMF接收所述终端发送的PRS资源配置请求消息。
可选地,所述LPP消息中包括以下至少一项:
预配置的可用的PRS配置信息集合;
终端侧发起PRS变更的最大PRS请求次数;
终端侧发起PRS变更相关的定时器配置信息。
可选地,所述预配置的可用的PRS配置信息集合用于所述终端发起动态PRS请求,且包括以下至少一项信息:
可用的DL-PRS资源对应的BWP ID;
可用的DL-PRS资源对应的定位频率层ID;
可用的DL-PRS资源对应的基站ID;
可用的DL-PRS资源对应的TRP ID;
可用的DL-PRS资源集ID;
可用的DL-PRS资源ID;
可用的DL-PRS资源周期的集合;
可用的DL-PRS资源重复次数的集合;
可用的DL-PRS资源muting pattern的集合。
可选地,所述终端侧发起PRS变更相关的定时器配置信息包括以下至少一项信息:
第一定时器的配置信息,所述第一定时器为终端发送所述请求后的响应定时器;
第二定时器的配置信息,所述第二定时器为终端连续发送两次所述请求之间的间隔定时器。
可选地,所述LMF接收到的所述终端发送的PRS资源配置请求消息中包括终端选择的DL-PRS配置信息,则所述LMF执行以下任意一项:
若终端请求的DL-PRS配置信息在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则返回PRS资源配置请求响应消息给所述终端,其中携带终端所请求的DL-PRS配置信息已经被配置的指示;
若终端请求的DL-PRS配置信息不在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则向基站发送DL-PRS重配置消息,其中携带终端请求的DL-PRS配置信息。
可选地,所述LMF接收到的所述终端发送的PRS资源配置请求消息中包括终端请求变更的DL-PRS配置信息,且所述请求变更的DL-PRS配置信息为以下至少一项:
请求增加的DL-PRS资源对应的BWP ID;
请求增加的DL-PRS资源对应的定位频率层ID;
请求增加的DL-PRS资源对应的基站ID;
请求增加的DL-PRS资源对应的TRP ID;
请求增加的DL-PRS资源集ID;
请求增加的DL-PRS资源ID;
请求增加DL-PRS资源的周期;
请求增加DL-PRS资源的重复次数;
请求增加DL-PRS资源的传输时刻;
请求增加DL-PRS资源的持续时长;
该方法还包括:所述LMF执行以下至少一项:
若终端请求变更的DL-PRS配置信息在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则返回PRS资源配置请求响应消息给所述终端,其中携带终端所请求变更的DL-PRS配置信息已经被配置的指示;
若终端请求变更的DL-PRS配置信息不在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则向基站发送DL-PRS重配置消息,其中携带终端请求变更的DL-PRS配置信息。
可选地,所述LMF接收到的所述终端发送的PRS资源配置请求消息中包括终端请求变更的DL-PRS配置信息,且所述请求变更的DL-PRS配置信息为以下至少一项:
请求减少的DL-PRS资源对应的BWP ID;
请求减少的DL-PRS资源对应的定位频率层ID;
请求减少的DL-PRS资源对应的基站ID;
请求减少的DL-PRS资源对应的TRP ID;
请求减少的DL-PRS资源集ID;
请求减少的DL-PRS资源ID;
请求减少DL-PRS资源的周期;
请求减少DL-PRS资源的重复次数;
请求减少DL-PRS资源的传输时刻;
请求减少DL-PRS资源的持续时长;
该方法还包括:所述LMF执行以下至少一项:
若所述终端请求变更的DL-PRS资源当前被其它定位终端使用,则返回PRS资源配置请求响应消息给所述终端,其中携带该终端所请求变更的DL-PRS配置信息不能被接受的指示;
若所述终端请求变更的DL-PRS资源当前未被其它定位终端使用,则向基站发送DL-PRS重配置消息,其中携带所述终端请求变更的DL-PRS配置信息。
可选地,所述LMF接收到的所述终端发送的PRS资源配置请求消息中包括DL-PRS波束方向相关的配置信息,则所述LMF执行以下至少一项:
若所述终端请求变更波束方向的DL-PRS资源当前被其它定位终端使用,则向所述终端发送指示该终端DL-PRS资源的波束方向相关的配置信息不能被接受的响应消息;
若所述终端请求变更波束方向的DL-PRS资源当前未被其它定位终端使用,向基站发送DL-PRS重配置消息,其中携带所述终端请求的DL-PRS资源的波束方向相关的配置信息。
可选地,该方法还包括:所述LMF接收所述基站反馈的重配置响应消息,所述重配置响应消息为基站针对DL-PRS重配置消息的响应,然后所述LMF执行以下至少一项:
若所述基站反馈的重配置响应消息指示所述请求已经被接受,则向终端发送PRS资源配置请求响应消息,其中携带该终端所请求的DL-PRS资源已经被接受的指示,和/或重配置的DL-PRS资源配置信息;
若所述基站反馈的重配置响应消息指示所述请求被拒绝,则向终端发送PRS资源配置请求响应消息,其中携带该终端请求的DL-PRS资源未被接受的指示。
在基站侧,本申请实施例提供的一种PRS资源确定方法,包括:
基站接收LMF发送的携带PRS配置信息的DL-PRS重配置消息;
所述基站从所述DL-PRS重配置消息中获取终端请求的DL-PRS配置信息,所述DL-PRS配置信息,来自于终端基于LMF预配置的PRS配置信息集合,向所述LMF发送的PRS资源配置请求。
可选地,所述基站接收到所述LMF发送的DL-PRS重配置消息后,所述基站执行以下至少一项:
若所述基站可以基于所述DL-PRS重配置消息重配置PRS资源,则返回重配置响应消息给LMF,其中携带基站已完成PRS配置的指示;
若所述基站不能依据所述DL-PRS重配置消息进行PRS资源配置,则返回重配置响应消息给LMF,其中携带指示基站不能配置请求的PRS资源的指示。
在终端侧,本申请实施例提供的一种PRS资源确定装置,包括:
存储器,用于存储程序指令;
处理器,用于调用所述存储器中存储的程序指令,按照获得的程序执行:
获取LMF预配置的可用的PRS配置信息集合;
基于所述LMF预配置的可用的PRS配置信息集合,向所述LMF发送PRS资源配置请求。
可选地,向所述LMF发送的PRS资源配置请求中,包括以下至少一项:
基于所述LMF预配置的可用的PRS配置信息集合,选择的PRS配置信息;
基于所述预配置的PRS配置信息集合及已经从LMF处获取到的PRS资源,确定的要请求变更的PRS资源的配置信息;
DL-PRS波束方向相关的配置信息。
可选地,所述选择的PRS配置信息包括以下至少一项:
DL-PRS资源对应的BWP ID;
DL-PRS资源对应的定位频率层ID;
DL-PRS资源对应的基站ID;
DL-PRS资源对应的TRP ID;
DL-PRS资源集ID;
DL-PRS资源ID;
DL-PRS资源的周期;
DL-PRS资源的周期使用的重复次数;
DL-PRS资源的muting pattern;
DL-PRS资源的传输时刻;
DL-PRS资源的持续时长。
可选地,所述请求变更的PRS资源的配置信息包括以下至少一项:
请求增加,或减少的DL-PRS资源对应的BWP ID;
请求增加,或减少的DL-PRS资源对应的定位频率层ID;
请求增加,或减少的DL-PRS资源对应的基站ID;
请求增加,或减少的DL-PRS资源对应的TRP ID;
请求增加,或减少的DL-PRS资源集ID;
请求增加,或减少的DL-PRS资源ID;
请求增加,或减少DL-PRS资源的周期;
请求增加,或减少DL-PRS资源的周期使用的重复次数;
请求变更DL-PRS资源的muting pattern;
请求增加,或减少DL-PRS资源的传输时刻;
请求增加,或减少DL-PRS资源的持续时长。
可选地,所述DL-PRS资源的波束方向相关的配置信息包括以下至少一项:
DL-PRS资源对应的基站ID;
DL-PRS资源对应的TRP ID;
DL-PRS资源对应的资源集ID;
最佳波束接收方向对应的SSB_index。
可选地,向所述LMF发送PRS资源配置请求之后,还包括执行以下至少一项操作:
更新向所述LMF发起PRS资源配置请求的次数;
根据LMF发送的定时器的配置信息,开启定时器,其中所述定时器包括第一定时器和/或第二定时器。
可选地,若未开启所述第一定时器,和/或,开启了所述第一定时器,但在所述第一定时器超时前,收到了LMF返回的PRS资源配置请求响应消息,则:
若所述响应消息中指示终端请求的DL-PRS配置信息被接受,则执行以下至少一项操作:
关闭第一定时器;
关闭第二定时器;
基于请求的DL-PRS配置信息更新终端的DL-PRS配置,并在更新后的DL-PRS配置的DL-PRS资源上进行测量;
若所述响应消息中指示终端请求变更的DL-PRS配置信息不能被接受,则执行以下至少一项操作:
等待第二定时器超时,并重新发起PRS资源配置请求;
关闭第一定时器;
重新发起PRS资源配置请求;
关闭第二定时器,并向LMF发起辅助信息请求过程;
向LMF发起辅助信息请求过程。
可选地,若开启了第一定时器,但在第一定时器超时前未收到LMF发送的PRS资源配置请求响应消息,则执行以下至少一项操作:
等待第二定时器超时后,再发起PRS资源配置请求;
重新发起PRS资源配置请求;
关闭第二定时器,并向LMF发起辅助信息请求过程;
向LMF发起辅助信息请求过程。
在LMF侧,本申请实施例提供的一种PRS资源确定装置,包括:
存储器,用于存储程序指令;
处理器,用于调用所述存储器中存储的程序指令,按照获得的程序执行:
给终端发送LPP消息;
接收所述终端发送的PRS资源配置请求消息。
可选地,所述LPP消息中包括以下至少一项:
预配置的可用的PRS配置信息集合;
终端侧发起PRS变更的最大PRS请求次数;
终端侧发起PRS变更相关的定时器配置信息。
可选地,所述预配置的可用的PRS配置信息集合用于所述终端发起动态PRS请求,且包括以下至少一项信息:
可用的DL-PRS资源对应的BWP ID;
可用的DL-PRS资源对应的定位频率层ID;
可用的DL-PRS资源对应的基站ID;
可用的DL-PRS资源对应的TRP ID;
可用的DL-PRS资源集ID;
可用的DL-PRS资源ID;
可用的DL-PRS资源周期的集合;
可用的DL-PRS资源重复次数的集合;
可用的DL-PRS资源muting pattern的集合。
可选地,所述终端侧发起PRS变更相关的定时器配置信息包括以下至少一项信息:
第一定时器的配置信息,所述第一定时器为终端发送所述请求后的响应定时器;
第二定时器的配置信息,所述第二定时器为终端连续发送两次所述请求之间的间隔定时器。
可选地,接收到的所述终端发送的PRS资源配置请求消息中包括终端选择的DL-PRS配置信息,则所述LMF执行以下任意一项:
若终端请求的DL-PRS配置信息在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则返回PRS资源配置请求响应消息给所述终端,其中携带终端所请求的DL-PRS配置信息已经被配置的指示;
若终端请求的DL-PRS配置信息不在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则向基站发送DL-PRS重配置消息,其中携带终端请求的DL-PRS配置信息。
可选地,接收到的所述终端发送的PRS资源配置请求消息中包括终端请求变更的DL-PRS配置信息,且所述请求变更的DL-PRS配置信息为以下至少一项:
请求增加的DL-PRS资源对应的BWP ID;
请求增加的DL-PRS资源对应的定位频率层ID;
请求增加的DL-PRS资源对应的基站ID;
请求增加的DL-PRS资源对应的TRP ID;
请求增加的DL-PRS资源集ID;
请求增加的DL-PRS资源ID;
请求增加DL-PRS资源的周期;
请求增加DL-PRS资源的重复次数;
请求增加DL-PRS资源的传输时刻;
请求增加DL-PRS资源的持续时长;
该装置还包括:所述LMF执行以下至少一项:
若终端请求变更的DL-PRS配置信息在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则返回PRS资源配置请求响应消息给所述终端,其中携带终端所请求变更的DL-PRS配置信息已经被配置的指示;
若终端请求变更的DL-PRS配置信息不在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则向基站发送DL-PRS重配置消息,其中携带终端请求变更的DL-PRS配置信息。
可选地,接收到的所述终端发送的PRS资源配置请求消息中包括终端请求变更的DL-PRS配置信息,且所述请求变更的DL-PRS配置信息为以下至少一项:
请求减少的DL-PRS资源对应的BWP ID;
请求减少的DL-PRS资源对应的定位频率层ID;
请求减少的DL-PRS资源对应的基站ID;
请求减少的DL-PRS资源对应的TRP ID;
请求减少的DL-PRS资源集ID;
请求减少的DL-PRS资源ID;
请求减少DL-PRS资源的周期;
请求减少DL-PRS资源的重复次数;
请求减少DL-PRS资源的传输时刻;
请求减少DL-PRS资源的持续时长;
该装置还包括:所述LMF执行以下至少一项:
若所述终端请求变更的DL-PRS资源当前被其它定位终端使用,则向所述终端返回PRS资源配置请求响应消息,其中携带该终端所请求变更的DL-PRS配置信息不能被接受的指示;
若所述终端请求变更的DL-PRS资源当前未被其它定位终端使用,则向基站发送 DL-PRS重配置消息,其中携带所述终端请求变更的DL-PRS配置信息。
可选地,所述LMF接收到的所述终端发送的PRS资源配置请求消息中包括DL-PRS波束方向相关的配置信息,则所述LMF执行以下至少一项:
若所述终端请求变更波束方向的DL-PRS资源当前被其它定位终端使用,则向所述终端发送PRS资源配置请求响应消息,其中携带该终端DL-PRS资源的波束方向相关的配置信息不能被接受的指示;
若所述终端请求变更波束方向的DL-PRS资源当前未被其它定位终端使用,向基站发送DL-PRS重配置消息,其中携带所述终端请求的DL-PRS资源的波束方向相关的配置信息。
可选地,所述处理器还用于:接收所述基站反馈的重配置响应消息,所述重配置响应消息为基站针对DL-PRS重配置消息的响应,然后执行以下至少一项:
若所述基站反馈的重配置响应消息指示所述请求已经被接受,则向终端发送PRS资源配置请求响应消息,其中携带该终端所请求的DL-PRS资源已经被接受的指示,和/或重配置的DL-PRS资源配置信息;
若所述基站反馈的重配置响应消息指示所述请求被拒绝,则向终端发送PRS资源配置请求响应消息,其中携带该终端请求的DL-PRS资源未被接受的指示。
在基站侧,本申请实施例提供的一种PRS资源确定装置,包括:
存储器,用于存储程序指令;
处理器,用于调用所述存储器中存储的程序指令,按照获得的程序执行:
接收LMF发送的携带PRS配置信息的DL-PRS重配置消息;
从所述PRS重配置消息中获取终端请求的DL-PRS配置信息,所述DL-PRS配置信息,来自于终端基于LMF预配置的PRS配置信息集合,向所述LMF发送的PRS资源配置请求。
可选地,接收到所述LMF发送的DL-PRS重配置消息后,所述处理器还用于执行以下至少一项:
若可以基于所述DL-PRS重配置消息重配置PRS资源,则返回重配置响应消息给LMF,其中携带基站已完成PRS配置的指示;
若不能依据所述DL-PRS重配置消息进行PRS资源配置,则返回重配置响应消息给LMF,其中携带指示基站不能配置请求的PRS资源的指示。
在终端侧,本申请实施例提供的另一种PRS资源确定装置,包括:
获取单元,用于获取LMF预配置的可用的PRS配置信息集合;
请求单元,用于基于所述LMF预配置的可用的PRS配置信息集合,向所述LMF发送PRS资源配置请求。
在LMF侧,本申请实施例提供的另一种PRS资源确定装置,包括:
发送单元,用于给终端发送LPP消息;
接收单元,用于接收所述终端发送的PRS资源配置请求消息。
在基站侧,本申请实施例提供的另一种PRS资源确定装置,包括:
接收单元,用于接收LMF发送的携带PRS配置信息的DL-PRS重配置消息;
获取单元,用于从所述PRS重配置消息中获取终端请求的DL-PRS配置信息,所述DL-PRS配置信息,来自于终端基于LMF预配置的PRS配置信息集合,向所述LMF发送的PRS资源配置请求。
本申请另一实施例提供了一种计算设备,其包括存储器和处理器,其中,所述存储器用于存储程序指令,所述处理器用于调用所述存储器中存储的程序指令,按照获得的程序执行上述任一种方法。
本申请另一实施例提供了一种计算机存储介质,所述计算机存储介质存储有计算机可执行指令,所述计算机可执行指令用于使所述计算机执行上述任一种方法。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简要介绍,显而易见地,下面描述中的附图仅是本申请的一些实施例,对于本领域的普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为现有技术中ProvideAssistanceData消息传输示意图;
图2为现有技术中RequestAssistanceData和ProvideAssistanceData消息传输示意图;
图3为现有技术中TRP信息传输示意图;
图4为本申请实施例提供的终端侧的一种PRS配置信息确定方法的流程示意图;
图5为本申请实施例提供的LMF侧的一种PRS配置信息确定方法的流程示意图;
图6为本申请实施例提供的基站侧的一种PRS配置信息确定方法的流程示意图;
图7为本申请实施例提供的终端侧的一种PRS配置信息确定装置的结构示意图;
图8为本申请实施例提供的LMF侧的一种PRS配置信息确定装置的结构示意图;
图9为本申请实施例提供的基站侧的一种PRS配置信息确定装置的结构示意图;
图10为本申请实施例提供的终端侧的另一种PRS配置信息确定装置的结构示意图;
图11为本申请实施例提供的LMF侧的另一种PRS配置信息确定装置的结构示意图;
图12为本申请实施例提供的基站侧的另一种PRS配置信息确定装置的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请一部分实施例,并不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例提供了PRS配置信息的确定方法及装置,用以根据UE需求实现灵活动态的配置DL-PRS,提高网络效率,并保障定位精度。
其中,方法和装置是基于同一申请构思的,由于方法和装置解决问题的原理相似,因此装置和方法的实施可以相互参见,重复之处不再赘述。
本申请实施例提供的技术方案可以适用于多种系统,尤其是5G系统。例如适用的系统可以是全球移动通讯(global system of mobile communication,GSM)系统、码分多址(code division multiple access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)通用分组无线业务(general packet radio service,GPRS)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)、通用移动系统(universal mobile telecommunication system,UMTS)、全球互联微波接入(worldwide interoperability for microwave access,WiMAX)系统、5G系统以及5G新空口(New Radio,NR)系统等。这多种系统中均包括终端设备和网络设备。
本申请实施例涉及的终端设备,可以是指向用户提供语音和/或数据连通性的设备,具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。在不同的系统中,终端设备的名称可能也不相同,例如在5G系统中,终端设备可以称为用户设备。无线终端设备可以经RAN与一个或多个核心网进行通信,无线终端设备可以是移动终端设备,如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。例如,个人通信业务(personal communication service,PCS)电话、无绳电话、会话发起协议(session initiated protocol,SIP)话机、无线本地环路(wireless local loop,WLL)站、个人数字助理(personal digital assistant,PDA)等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station),移动站(mobile station)、 移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device),本申请实施例中并不限定。
本申请实施例涉及的网络设备,可以是基站,该基站可以包括多个小区。根据具体应用场合不同,基站又可以称为接入点,或者可以是指接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备,或者其它名称。网络设备可用于将收到的空中帧与网际协议(internet protocol,IP)分组进行相互转换,作为无线终端设备与接入网的其余部分之间的路由器,其中接入网的其余部分可包括IP通信网络。网络设备还可协调对空中接口的属性管理。例如,本申请实施例涉及的网络设备可以是全球移动通信系统(global system for mobile communications,GSM)或码分多址接入(code division multiple access,CDMA)中的网络设备(base transceiver station,BTS),也可以是带宽码分多址接入(wide-band code division multiple access,WCDMA)中的网络设备(NodeB),还可以是长期演进(long term evolution,LTE)系统中的演进型网络设备(evolutional node B,eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站,也可是家庭演进基站(home evolved node B,HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等,本申请实施例中并不限定。
下面结合说明书附图对本申请各个实施例进行详细描述。需要说明的是,本申请实施例的展示顺序仅代表实施例的先后顺序,并不代表实施例所提供的技术方案的优劣。
本申请实施例提供的技术方案中,UE基于LMF预配置的可用的PRS配置信息集合,和/或LMF配置的最大UE触发PRS变更的次数,和/或LMF配置的UE触发PRS配置请求相关的定时器配置信息等信息,来动态触发PRS配置请求,以根据UE需求来实现灵活动态的配置DL-PRS,从而提高网络效率,和保障定位精度。
LMF预配置的可用的PRS配置信息集合,或者又可叫做预配置的UE可动态请求/变更的PRS配置信息集合,指的是LMF为UE配置的可用于UE发起PRS配置请求的PRS资源的范围,也即UE在发起PRS配置请求时,其请求的PRS配置只能是在这个预配置的PRS配置信息集合中的PRS配置。
下面分别从不同侧介绍本申请实施例提供的技术方案。
UE侧:
一、UE基于LPP消息1(例如消息1)中携带的UE可动态请求/变更的PRS配置信息集合(或者称为可用的PRS配置信息集合),发起PRS资源配置请求。具体地,可以有以下三种情况:
情况一:可选的,UE基于自身的信道环境状况,定位精度要求,和/或测量结果,在LMF下发的可动态变更的PRS配置信息中选定PRS资源配置信息,并将选定的PRS资源配置信息携带在PRS资源配置请求消息中,上报给LMF。其中,UE选定的PRS资源配置信息包括以下至少一项:
DL-PRS资源对应的BWP ID;
DL-PRS资源对应的定位频率层ID;
DL-PRS资源对应的基站ID;
DL-PRS资源对应的TRP ID;
DL-PRS资源集ID;
DL-PRS资源ID;
DL-PRS资源的周期;
DL-PRS资源的周期使用的重复次数;
DL-PRS资源的静默格式(muting pattern);
DL-PRS资源的传输时刻;
DL-PRS资源的持续时长。
情况二:可选的,若UE在请求PRS资源配置信息之前已经从LMF处获取到LMF为UE配置的PRS资源,则UE可在该PRS配置的基础上,在PRS资源配置请求消息中携带请求变更配置的PRS资源的配置信息,并上报给LMF。其中,UE请求变更的PRS资源配置信息可包括以下至少一项:
请求增加或减少的DL-PRS资源对应的BWP ID;
请求增加或减少的DL-PRS资源对应的定位频率层ID;
请求增加或减少的DL-PRS资源对应的基站ID;
请求增加或减少的DL-PRS资源对应的TRP ID;
请求增加或减少的DL-PRS资源集ID;
请求增加或减少的DL-PRS资源ID;
请求增加或减少DL-PRS资源的周期;
请求增加或减少DL-PRS资源的周期使用的重复次数;
请求变更DL-PRS资源的muting pattern;
请求增加或减少DL-PRS资源的传输时刻;
请求增加或减少DL-PRS资源的持续时长。
情况三:可选的,UE还可基于其测量结果,或同步信号和物理广播信道块 (Synchronization Signal and Physical Broadcast CHannel block,SSB)的接收情况,确定DL-PRS资源的波束方向相关的配置信息,例如包括以下至少一项:
DL-PRS资源对应的基站ID;
DL-PRS资源对应的TRP ID;
DL-PRS资源对应的资源集ID;
最佳波束接收方向对应的SSB_index。
DL-PRS资源的波束方向相关的配置信息,可以通过PRS资源配置请求消息,上报给LMF。
二、可选的,UE在发送携带PRS资源配置请求消息后,更新UE侧的PRS请求次数(即发起DL-PRS配置请求的次数)N;以及,可选的,当LPP消息1中包含定时器的配置信息(例如响应定时器T1的定时时长,和/或请求间隔定时器T2的定时时长)时,UE还会执行以下至少一项步骤:
开启响应定时器T1(也可以称为第一定时器);
开启请求间隔定时器T2(也可以称为第二定时器)。
其中,响应定时器T1的作用是,若UE在响应定时器T1超时前,收到LMF的响应消息,则可以认为PRS资源配置成功,否则,若当前累计的发起DL-PRS配置请求的次数N没有超过预设阈值,则确定需要继续发起DL-PRS配置请求。所述请求间隔定时器T2的作用,即连续两次发起DL-PRS配置请求的时间间隔,例如发起DL-PRS配置请求时开启请求间隔定时器T2,在该定时器T2超时前,若确认需要继续发起DL-PRS配置请求,则在该定时器T2超时时,再次发起DL-PRS配置请求。
三、若未配置响应定时器T1,和/或,配置了响应定时器T1但在响应定时器T1超时前,UE收到了LMF反馈的PRS资源配置请求响应消息,则:
A、若该PRS资源配置请求响应消息中指示UE请求的DL-PRS配置信息被接受,则UE执行以下至少一项:
1、UE关闭响应定时器T1;
2、UE关闭间隔定时器T2;
3、基于请求的DL-PRS配置信息更新UE的DL-PRS配置,并在这些配置的DL-PRS资源上进行测量。
B、若该PRS资源配置请求响应消息中指示UE请求变更的DL-PRS配置信息不能被接受,则UE执行以下至少一项:
1、UE关闭响应定时器T1;
2、当PRS请求次数N小于LMF为UE配置的最大请求次数限制时,UE执行以下至少一项:
等待间隔定时器T2超时,并重新发起PRS资源配置请求;
重新发起新的DL-PRS配置信息请求过程。
3、当PRS请求次数N等于LMF为UE配置的最大请求次数限制时,UE执行以下至少一项:
关闭间隔定时器T2;
基于LMF为UE配置的辅助信息中的PRS进行测量。
可选的,UE基于LMF为其配置的辅助信息中的PRS进行测量之前,发起不携带PRS配置信息的RequestAssistanceData消息给LMF,请求获取LMF侧配置的PRS。
四、若配置了响应定时器T1,但UE在响应定时器T1超时前未收到LMF反馈的PRS资源配置请求响应消息,则UE执行:
1、当PRS请求次数N小于LMF为UE配置的最大请求次数限制时,UE执行以下至少一项:
等待间隔定时器T2超时后,再发起PRS资源配置请求;
重新发起新的DL-PRS配置信息请求过程。
2、当PRS请求次数N等于LMF为UE配置的最大请求次数限制时,UE执行以下至少一项:
关闭间隔定时器T2;
基于LMF为UE配置的辅助信息中的PRS进行测量。
可选的,UE基于LMF为其配置的辅助信息中的PRS进行测量之前,发起不携带PRS配置信息的RequestAssistanceData消息给LMF,请求获取LMF侧配置的PRS。
LMF侧:
一、当有定位业务到达时,LMF给UE发送LPP消息1,该消息包括:
可用的DL-PRS配置信息集合;
和/或,UE侧发起PRS变更的最大PRS请求次数;
和/或,UE侧发起PRS变更相关的定时器配置信息。
其中,可用的DL-PRS的配置信息集合中包括以下至少一项:
可用的DL-PRS资源对应的BWP ID;
可用的DL-PRS资源对应的定位频率层ID;
可用的DL-PRS资源对应的基站ID;
可用的DL-PRS资源对应的TRP ID;
可用的DL-PRS资源集ID;
可用的DL-PRS资源ID;
可用的DL-PRS资源周期的集合;
可用的DL-PRS资源重复次数的集合;
可用的DL-PRS资源muting pattern的集合。
UE侧发起PRS变更相关的定时器配置信息包括以下至少一项:
UE连续发送两次PRS资源配置请求消息之间的间隔定时器配置;
UE发送PRS资源配置请求消息后的响应定时器配置。
二、若LMF收到UE发送的PRS资源配置请求消息,则:
若UE请求的DL-PRS配置信息在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则LMF返回PRS资源配置请求响应消息给UE,并在其中指示UE请求的DL-PRS配置信息已经被配置。
若UE请求的DL-PRS配置信息不在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则LMF向基站发送DL-PRS重配置消息,其中携带UE请求的DL-PRS配置信息。
三、若LMF已经通过ProvideAssistanceData消息给UE下发为其配置的DL-PRS资源,LMF收到UE发送的PRS资源配置请求消息,则:
当UE请求变更的DL-PRS配置信息为以下至少一项时:
请求增加的DL-PRS资源对应的BWP ID;
请求增加的DL-PRS资源对应的定位频率层ID;
请求增加的DL-PRS资源对应的基站ID;
请求增加的DL-PRS资源对应的TRP ID;
请求增加的DL-PRS资源集ID;
请求增加的DL-PRS资源ID;
请求增加DL-PRS资源的周期;
请求增加DL-PRS资源的重复次数;
请求增加DL-PRS资源的传输时刻;
请求增加DL-PRS资源的持续时长。
若UE请求变更的DL-PRS配置信息在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则LMF返回PRS资源配置请求响应消息给UE,并在其中指示UE请求变 更的DL-PRS配置信息已经被配置。
若UE请求变更的DL-PRS配置信息不在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则LMF向基站发送DL-PRS重配置消息,其中携带UE请求变更的DL-PRS配置信息。
当UE请求变更的DL-PRS配置信息为以下至少一项时:
请求减少的DL-PRS资源对应的BWP ID;
请求减少的DL-PRS资源对应的定位频率层ID;
请求减少的DL-PRS资源对应的基站ID;
请求减少的DL-PRS资源对应的TRP ID;
请求减少的DL-PRS资源集ID;
请求减少的DL-PRS资源ID;
请求减少DL-PRS资源的周期;
请求减少DL-PRS资源的重复次数;
请求减少DL-PRS资源的传输时刻;
请求减少DL-PRS资源的持续时长;
则,LMF先检查UE请求减少的这些DL-PRS资源当前是否被其它定位终端使用,若这些DL-PRS资源尚未被其它定位终端使用,则:
LMF给基站发送DL-PRS重配置消息,其中携带UE请求变更的DL-PRS配置信息。
若这些DL-PRS资源已经被分配给其它定位终端使用,则:
LMF拒绝UE的请求,并返回PRS资源配置请求响应消息给UE,并在其中指示UE请求变更的DL-PRS配置信息不能被接受。
四、若LMF收到UE发送的包含请求变更波束方向DL-PRS配置的RequestAssistanceData消息或其他LPP消息,则LMF先检查UE请求变更波束方向的DL-PRS资源当前是否被其它定位终端使用:
若这些DL-PRS资源尚未被其它定位终端使用,则:
LMF给基站发送DL-PRS重配置消息,其中携带UE请求变更波束方向的DL-PRS配置;
若这些DL-PRS资源已经被分配给其它定位终端使用,则:
LMF拒绝UE的请求,并返回PRS资源配置请求响应消息给UE,并在其中指示UE请求变更波束方向的DL-PRS配置不能被接受。
五、LMF收到基站返回的DL-PRS重配置响应消息后:
若该DL-PRS重配置响应消息指示基站已经完成请求的DL-PRS配置:
则LMF发送PRS资源配置请求响应消息给UE,指示UE其请求的DL-PRS资源已经被接受,和/或在该消息中携带重配置后的DL-PRS资源;
若该DL-PRS重配置响应消息指示基站不能配置请求的DL-PRS:
则LMF发送PRS资源配置请求响应消息给UE,指示UE其请求的DL-PRS资源未被接受。
基站侧:
基站收到LMF发送的P携带PRS配置信息的DL-PRS重配置消息后,从所述DL-PRS重配置消息中获取终端请求的DL-PRS配置信息,所述DL-PRS配置信息,来自于终端基于LMF预配置的PRS配置信息集合,向所述LMF发送的PRS资源配置请求。
可选的,基站基于该重配置消息来重配置相应的PRS,并返回PRS重配置响应消息给LMF,其中指示基站完成相应PRS的配置。
可选的,若基站不能依据该重配置消息中的PRS配置信息来配置PRS,则基站返回PRS重配置响应消息给LMF,其中指示基站不能配置相应的PRS的配置。
另外说明如下:
PRS资源配置请求消息是终端发送给LMF的,该消息可以是现有的RequestAssistanceData消息或其它LPP消息;
PRS资源配置请求响应消息是LMF发送给终端的针对PRS资源配置请求消息的响应,该消息可以是现有的ProvideAssistanceData消息或其它LPP消息;
DL-PRS重配置消息是LMF发送给基站的,该消息可以是现有的PositioningInformationRequest消息或其它NR定位协议A(NRPPa)消息;
DL-PRS重配置响应消息是基站发送给LMF的针对DL-PRS重配置消息的响应,该消息可以是现有的PositioningInformationResponse消息或其它NRPPa消息。
下面给出几个具体实施例的说明。
实施例1:LMF基于基站配置的PRS资源,为其预配置可用的DL-PRS配置信息集合。
步骤1:LMF向基站发送TRP information Request消息,请求获取基站配置的PRS资源。
步骤2:基站发送TRP information Response响应消息给LMF,并在响应消息中携带基站下的不同TRP配置的PRS资源的配置信息。
步骤3:LMF收到基站发送的PRS配置信息后,从这些PRS配置信息中为UE预配置可用的DL-PRS配置信息集合。
步骤4:LMF下发LPP消息1给UE。
可选的,在LMF下发LPP消息1给UE之前,LMF已经为UE配置了相应的PRS资源,并作为辅助信息的一部分通过ProvideAssistanceData消息下发给UE。
针对LPP消息1,其中包括以下至少一项:
可用的DL-PRS配置信息集合;
UE侧发起PRS变更的最大PRS请求次数;
和/或UE侧发起PRS变更相关的定时器配置信息;
其中可用的DL-PRS配置信息集合的范围包括以下至少一项:
可请求变更的DL-PRS资源对应的BWP ID;
可请求变更的DL-PRS资源对应的定位频率层ID;
可请求变更的DL-PRS资源对应的基站ID;
可请求变更的DL-PRS资源对应的TRP ID;
可请求变更的DL-PRS资源集ID;
可请求变更的DL-PRS资源ID。
可动态请求的DL-PRS资源的配置信息包括以下至少一项:
可请求变更的DL-PRS资源周期的集合;
可请求变更的DL-PRS资源重复次数的集合;
可请求变更的DL-PRS资源muting pattern的集合。
UE侧发起PRS变更相关的定时器配置信息包括以下至少一项:
UE连续发送两次请求消息之间的间隔定时器配置;
UE发送DL-PRS请求消息后的响应定时器配置。
实施例2:LMF基于UE发起的PRS资源配置请求消息,请求基站重配置PRS。
步骤1:LMF发送DL-PRS重配置消息给基站,其中携带UE请求的DL-PRS配置信息。
步骤2a:基站基于该重配置消息来重配置相应的PRS,并返回PRS重配置响应消息给LMF,其中指示基站完成相应PRS的配置。
步骤2b:当基站不能依据该重配置消息中的PRS配置信息来配置PRS时,则基站返回PRS重配置响应消息给LMF,其中指示基站不能配置相应的PRS的配置。
实施例3:UE基于LPP消息1中携带的可用的PRS配置信息,请求相应的DL-PRS配置信息。
实施例3-1:当UE侧未配置定时器时,UE基于LPP消息1中携带的可动态变更的 PRS配置信息,发起DL-PRS资源配置请求。
步骤1a:可选的,UE基于自身的信道环境状况,定位精度要求,和/或测量结果,在LMF下发的可用的PRS配置信息集合的范围内选定相应的PRS资源配置,并将该PRS资源配置信息携带在DL-PRS资源配置请求消息中,上报给LMF。其中,UE请求的DL-PRS资源配置信息包括以下至少一项:
DL-PRS资源对应的BWP ID;
DL-PRS资源对应的定位频率层ID;
DL-PRS资源对应的基站ID;
DL-PRS资源对应的TRP ID;
DL-PRS资源集ID;
DL-PRS资源ID;
DL-PRS资源的周期;
DL-PRS资源的重复次数;
DL-PRS资源的muting pattern;
DL-PRS资源的传输时刻;
DL-PRS资源的持续时长。
步骤1b:可选的,若UE在请求PRS资源配置信息之前已经从LMF处获取到LMF为UE配置的PRS资源,则UE可在该PRS配置的基础上,在DL-PRS资源配置请求消息中携带可请求变更配置的PRS资源的配置信息,并上报给LMF。其中,UE请求变更的PRS资源配置信息可包括以下至少一项:
请求增加或减少的DL-PRS资源对应的BWP ID;
请求增加或减少的DL-PRS资源对应的定位频率层ID;
请求增加或减少的DL-PRS资源对应的基站ID;
请求增加或减少的DL-PRS资源对应的TRP ID;
请求增加或减少的DL-PRS资源集ID;
请求增加或减少的DL-PRS资源ID;
请求增加或减少DL-PRS资源的周期;
请求增加或减少DL-PRS资源的重复次数;
请求变更DL-PRS资源的muting pattern;
请求增加或减少DL-PRS资源的传输时刻;
请求增加或减少DL-PRS资源的持续时长。
步骤1c:可选的,UE还可基于其测量结果,或SSB的接收情况,确定一个最佳波束接收方向,通过DL-PRS资源配置请求消息,上报给LMF。其中,该消息中至少包括以下一项:
DL-PRS资源对应的基站ID;
DL-PRS资源对应的TRP ID;
DL-PRS资源对应的资源集ID;
最佳波束接收方向SSB_index。
步骤2:可选的,UE在发送DL-PRS资源配置请求消息后,更新UE侧的PRS请求次数N。
步骤3a:可选的,若LMF收到UE发送的携带UE选择的DL-PRS配置信息的DL-PRS资源配置请求消息,则LMF判断UE请求的DL-PRS配置信息是否在LMF从基站获取到的基站配置的DL-PRS配置信息集合中。
步骤3b:可选的,(若LMF已经通过ProvideAssistanceData消息给UE下发为其配置的DL-PRS资源)LMF收到UE发送的携带请求变更DL-PRS配置信息的DL-PRS资源配置请求消息,且当UE请求变更的DL-PRS配置信息为以下至少一项:
请求增加的DL-PRS资源对应的BWP ID;
请求增加的DL-PRS资源对应的定位频率层ID;
请求增加的DL-PRS资源对应的基站ID;
请求增加的DL-PRS资源对应的TRP ID;
请求增加的DL-PRS资源集ID;
请求增加的DL-PRS资源ID;
请求增加DL-PRS资源的周期;
请求增加DL-PRS资源的重复次数;
请求增加DL-PRS资源的传输时刻;
请求增加DL-PRS资源的持续时长;
则LMF判断UE请求变更的DL-PRS配置信息是否在LMF从基站获取到的DL-PRS配置信息集合中。
步骤3c:可选的,(若LMF已经通过ProvideAssistanceData消息给UE下发为其配置的DL-PRS资源)LMF收到UE发送的携带请求变更DL-PRS配置信息的DL-PRS资源配置请求消息,且当UE请求变更的DL-PRS配置信息为以下至少一项:
请求减少的DL-PRS资源对应的BWP ID;
请求减少的DL-PRS资源对应的定位频率层ID;
请求减少的DL-PRS资源对应的基站ID;
请求减少的DL-PRS资源对应的TRP ID;
请求减少的DL-PRS资源集ID;
请求减少的DL-PRS资源ID;
请求减少DL-PRS资源的周期;
请求减少DL-PRS资源的重复次数;
请求减少DL-PRS资源的传输时刻;
请求减少DL-PRS资源的持续时长;
则LMF先检查UE请求减少的这些DL-PRS资源当前是否被其它定位终端使用。
步骤3d:若LMF收到UE发送的包含请求变更DL-PRS波束方向的DL-PRS资源配置请求消息,则LMF先检查UE请求变更波束方向的DL-PRS资源当前是否被其它定位终端使用。
步骤4a:针对步骤3a和3b,若UE请求的DL-PRS配置信息在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则LMF返回DL-PRS资源配置请求响应消息给UE,并在其中指示UE请求的DL-PRS配置信息已经被配置。
步骤4b:针对步骤3a和3b,若UE请求的DL-PRS配置信息不在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则LMF向基站发送DL-PRS重配置消息,其中携带UE请求的DL-PRS配置信息。
步骤4c:针对步骤3c和3d,若LMF检测到UE请求变更的PRS资源尚未被其它定位终端使用,则LMF给基站发送DL-PRS重配置消息,其中携带UE请求变更的PRS配置信息。
步骤4d:针对步骤3c和3d,若LMF检测到UE请求变更的DL-PRS资源已经被其它定位终端使用,LMF拒绝UE的请求,并返回PRS资源配置请求响应消息给UE,并在其中指示UE请求变更的DL-PRS配置信息不能被接受。
步骤5:针对步骤4b和步骤4c,执行实施例2中的操作。
步骤6:针对步骤5,LMF从基站获取到DL-PRS重配置响应消息后:
若该DL-PRS重配置响应消息指示基站已经完成请求的DL-PRS配置,则LMF发送PRS资源配置请求响应消息给UE,指示UE其请求的DL-PRS资源已经被接受,和/或并在该消息中携带重配置后的DL-PRS资源。
若该DL-PRS重配置响应消息指示基站不能配置请求的DL-PRS配置:
则LMF发送PRS资源配置请求响应消息给UE,指示UE其请求的DL-PRS资源未被接受。
步骤7:针对步骤4a,步骤4d和步骤6,当UE收到LMF反馈的PRS资源配置请求响应消息后:
若该消息中指示UE请求的DL-PRS配置信息被接受,则UE基于请求的DL-PRS配置信息更新其DL-PRS配置,并在这些配置的DL-PRS资源上进行测量;
若该消息中指示UE请求变更的DL-PRS配置信息不能被接受,则:
当PRS请求次数N小于LMF为UE配置的最大请求次数限制时,UE重新发起新的DL-PRS配置信息请求过程;
当PRS请求次数N等于LMF为UE配置的最大请求次数限制时,UE基于LMF为其配置的辅助信息中的PRS进行测量;
可选的,UE基于LMF为其配置的辅助信息中的PRS进行测量之前,发起不携带PRS配置信息的RequestAssistanceData消息给LMF请求获取LMF侧配置的PRS。
实施例3-2:UE侧配置响应定时器T1,和/或间隔定时器T2时,UE基于LPP消息1中携带的可用的PRS配置信息集合,发起DL-PRS资源配置请求,且(当配置了响应定时器T1时,在响应定时器T1超时前)获取到LMF的反馈消息。
步骤1a:可选的,UE基于自身的信道环境状况,定位精度要求,和/或测量结果,在LMF下发的可用的PRS配置信息集合的范围内选定PRS配置信息,并将选定的PRS配置信息携带在PRS资源配置请求消息(或者也可以称为DL-PRS资源配置请求消息)中(即UE请求按照该选定的PRS配置信息为该UE配置相应的DL-PRS资源),上报给LMF。其中,UE选定的PRS配置信息包括以下至少一项:
DL-PRS资源对应的BWP ID;
DL-PRS资源对应的定位频率层ID;
DL-PRS资源对应的基站ID;
DL-PRS资源对应的TRP ID;
DL-PRS资源集ID;
DL-PRS资源ID;
DL-PRS资源的周期;
DL-PRS资源的重复次数;
DL-PRS资源的muting pattern;
DL-PRS资源的传输时刻;
DL-PRS资源的持续时长。
步骤1b:可选的,若UE在请求PRS资源配置信息之前已经从LMF处获取到LMF为UE配置的PRS资源,则UE可在该PRS配置的基础上,在PRS资源配置请求消息中携带可请求变更配置的PRS资源配置信息,并上报给LMF。其中,UE请求变更的PRS资源配置信息可包括以下至少一项:
请求增加或减少的DL-PRS资源对应的BWP ID;
请求增加或减少的DL-PRS资源对应的定位频率层ID;
请求增加或减少的DL-PRS资源对应的基站ID;
请求增加或减少的DL-PRS资源对应的TRP ID;
请求增加或减少的DL-PRS资源集ID;
请求增加或减少的DL-PRS资源ID;
请求增加或减少DL-PRS资源的周期;
请求增加或减少DL-PRS资源的重复次数;
请求变更DL-PRS资源的muting pattern;
请求增加或减少DL-PRS资源的传输时刻;
请求增加或减少DL-PRS资源的持续时长。
步骤1c:可选的,UE还可基于其测量结果,或SSB的接收情况,确定一个最佳波束接收方向,通过PRS资源配置请求消息,上报给LMF。其中,该消息中至少包括以下一项:
DL-PRS资源对应的基站ID;
DL-PRS资源对应的TRP ID;
DL-PRS资源对应的资源集ID;
最佳波束接收方向SSB_index。
步骤2:可选的,UE在发送携带DL-PRS配置信息的PRS资源配置请求消息后,更新UE侧的PRS请求次数N,以及可选的,当LPP消息1中包含定时器的配置信息时,UE还会执行以下至少一项:
开启响应定时器T1;
开启请求间隔定时器T2。
步骤3a:可选的,LMF收到UE发送的携带DL-PRS配置信息的PRS资源配置请求消息,则LMF判断UE请求的DL-PRS配置信息是否在LMF从基站获取到的基站配置的DL-PRS配置信息集合中。
步骤3b:可选的,(若LMF已经通过ProvideAssistanceData消息给UE下发为其配置的DL-PRS资源)LMF收到UE发送的携带请求变更DL-PRS配置信息的PRS资源配置请求消息,且当UE请求变更的DL-PRS配置信息为以下至少一项:
请求增加的DL-PRS资源对应的BWP ID;
请求增加的DL-PRS资源对应的定位频率层ID;
请求增加的DL-PRS资源对应的基站ID;
请求增加的DL-PRS资源对应的TRP ID;
请求增加的DL-PRS资源集ID;
请求增加的DL-PRS资源ID;
请求增加DL-PRS资源的周期;
请求增加DL-PRS资源的重复次数;
请求增加DL-PRS资源的传输时刻;
请求增加DL-PRS资源的持续时长;
则LMF判断UE请求的DL-PRS配置信息是否在LMF从基站获取到的基站配置的DL-PRS配置信息集合中。
步骤3c:可选的,(若LMF已经通过ProvideAssistanceData消息给UE下发为其配置的DL-PRS资源)LMF收到UE发送的携带请求变更DL-PRS配置信息的PRS资源配置请求消息,且当UE请求变更的DL-PRS配置信息为以下至少一项:
请求减少的DL-PRS资源对应的BWP ID;
请求减少的DL-PRS资源对应的定位频率层ID;
请求减少的DL-PRS资源对应的基站ID;
请求减少的DL-PRS资源对应的TRP ID;
请求减少的DL-PRS资源集ID;
请求减少的DL-PRS资源ID;
请求减少DL-PRS资源的周期;
请求减少DL-PRS资源的重复次数;
请求减少DL-PRS资源的传输时刻;
请求减少DL-PRS资源的持续时长;
则LMF先检查UE请求减少的这些DL-PRS资源当前是否被其它定位终端使用。
步骤3d:若LMF收到UE发送的包含请求变更波束方向DL-PRS配置的PRS资源配置请求消息,则LMF先检查UE请求变更波束方向的DL-PRS资源当前是否被其它定位终 端使用。
步骤4a:针对步骤3a和3b,若UE请求的DL-PRS配置信息在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则LMF返回PRS资源配置请求响应消息给UE,并在其中指示UE请求的DL-PRS配置信息已经被配置。
步骤4b:针对步骤3a和3b,若UE请求的DL-PRS配置信息不在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则LMF向基站发送DL-PRS重配置消息,其中携带UE请求的DL-PRS配置信息。
步骤4c:针对步骤3c和3d,若LMF检测到UE请求变更的DL-PRS资源尚未被其它定位终端使用,则LMF给基站发送DL-PRS重配置消息,其中携带UE请求变更的PRS配置信息。
步骤4d:针对步骤3c和3d,若LMF检测到UE请求变更的DL-PRS资源已经被其它定位终端使用,LMF拒绝UE的请求,并返回PRS资源配置请求响应消息给UE,并在其中指示UE请求变更的DL-PRS配置信息不能被接受。
步骤5:针对步骤4b和步骤4c,执行实施例2中的操作。
步骤6:针对步骤5,LMF从基站获取到DL-PRS重配置响应消息后:
若该DL-PRS重配置响应消息指示基站已经完成请求的DL-PRS配置,则LMF发送PRS资源配置请求响应消息给UE,指示UE其请求的DL-PRS资源已经被接受,和/或并在该消息中携带重配置后的DL-PRS资源;
若该DL-PRS重配置响应消息指示基站不能配置请求的DL-PRS配置:
则LMF发送PRS资源配置请求响应消息给UE,指示UE其请求的DL-PRS资源未被接受。
步骤7:针对步骤4a,步骤4d和步骤6,当UE收到LMF反馈的PRS资源配置请求响应消息后,或者当配置了响应定时器T1,且在响应定时器T1超时前收到了LMF反馈的PRS资源配置请求响应消息,则UE会基于该消息中的指示判断UE请求的DL-PRS配置信息是否被接受。
步骤8a:若该消息中指示UE请求的DL-PRS配置信息被接受,则:
若UE侧配置了响应定时器T1,且配置了间隔定时器T2,则UE关闭响应定时器T1和间隔定时器T2,并基于请求的DL-PRS配置信息更新其DL-PRS配置,并在这些配置的DL-PRS资源上进行测量;
若UE侧只配置了响应定时器T1,则UE关闭响应定时器T1,并基于请求的DL-PRS配置信息更新其DL-PRS配置,并在这些配置的DL-PRS资源上进行测量;
若UE侧只配置了响应定时器T1,则UE关闭间隔定时器T2,并基于请求的DL-PRS配置信息更新其DL-PRS配置,并在这些配置的DL-PRS资源上进行测量;
步骤8b:若该消息中指示UE请求变更的DL-PRS配置信息不能被接受,且:
情况一、当PRS请求次数N小于LMF为UE配置的最大请求次数限制时:
若UE侧配置了响应定时器T1,且配置了间隔定时器T2,则UE关闭响应定时器T1,并在间隔定时器T2超时后重新发起新的DL-PRS配置信息请求过程;
若UE侧只配置了响应定时器T1,则UE关闭响应定时器T1,重新发起新的DL-PRS配置信息请求过程;
若UE侧只配置了间隔定时器T2,则UE在间隔定时器T2超时后重新发起新的DL-PRS配置信息请求过程;
情况二、当PRS请求次数N等于LMF为UE配置的最大请求次数限制时:
A、若UE侧配置了响应定时器T1,且配置了间隔定时器T2,则UE关闭响应定时器T1和间隔定时器T2,并基于LMF为其配置的辅助信息中的PRS进行测量;
可选的,UE基于LMF为其配置的辅助信息中的PRS进行测量之前,发起不携带PRS配置信息的RequestAssistanceData消息给LMF请求获取LMF侧配置的PRS。
B、若UE侧只配置了响应定时器T1,则UE关闭响应定时器T1,并基于LMF为其配置的辅助信息中的PRS进行测量;
可选的,UE基于LMF为其配置的辅助信息中的PRS进行测量之前,发起不携带PRS配置信息的RequestAssistanceData消息给LMF请求获取LMF侧配置的PRS。
C、若UE侧只配置了间隔定时器T2,则UE关闭间隔定时器T2,并基于LMF为其配置的辅助信息中的PRS进行测量;
可选的,UE基于LMF为其配置的辅助信息中的PRS进行测量之前,发起不携带PRS配置信息的RequestAssistanceData消息给LMF请求获取LMF侧配置的PRS。
实施例3-3:UE侧配置了响应定时器T1,但在响应定时器T1超时前未获取到LMF的反馈消息。
步骤1a:可选的,UE基于自身的信道环境状况,定位精度要求,和/或测量结果,在LMF下发的可用的PRS配置信息集合的范围内选定相应的PRS资源配置,并将该PRS资源配置信息携带在PRS资源配置请求消息中,上报给LMF。其中,UE请求的DL-PRS资源配置信息包括以下至少一项:
DL-PRS资源对应的BWP ID;
DL-PRS资源对应的定位频率层ID;
DL-PRS资源对应的基站ID;
DL-PRS资源对应的TRP ID;
DL-PRS资源集ID;
DL-PRS资源ID;
DL-PRS资源的周期;
DL-PRS资源的重复次数;
DL-PRS资源的muting pattern;
DL-PRS资源的传输时刻;
DL-PRS资源的持续时长。
步骤1b:可选的,若UE在请求PRS资源配置信息之前已经从LMF处获取到LMF为UE配置的PRS资源,则UE可在该PRS配置的基础上,在PRS资源配置请求消息中携带可请求变更配置的PRS资源的配置信息,并上报给LMF。其中,UE请求变更的PRS资源配置信息可包括以下至少一项:
请求增加或减少的DL-PRS资源对应的BWP ID;
请求增加或减少的DL-PRS资源对应的定位频率层ID;
请求增加或减少的DL-PRS资源对应的基站ID;
请求增加或减少的DL-PRS资源对应的TRP ID;
请求增加或减少的DL-PRS资源集ID;
请求增加或减少的DL-PRS资源ID;
请求增加或减少DL-PRS资源的周期;
请求增加或减少DL-PRS资源的重复次数;
请求变更DL-PRS资源的muting pattern;
请求增加或减少DL-PRS资源的传输时刻;
请求增加或减少DL-PRS资源的持续时长。
步骤1c:可选的,UE还可基于其测量结果,或SSB的接收情况,确定一个最佳波束接收方向,通过PRS资源配置请求消息,上报给LMF。其中,该消息中至少包括以下一项:
DL-PRS资源对应的基站ID;
DL-PRS资源对应的TRP ID;
DL-PRS资源对应的资源集ID;
最佳波束接收方向SSB_index。
步骤2:可选的,UE在发送携带DL-PRS配置信息的PRS资源配置请求消息后,更新UE侧的PRS请求次数N,开启响应定时器T1,以及可选的,当LPP消息1中包含定时器的配置信息时,UE还会开启请求间隔定时器T2;
步骤3a:可选的,LMF收到UE发送的携带DL-PRS配置信息的PRS资源配置请求消息,则LMF判断UE请求的DL-PRS配置信息是否在LMF从基站获取到的基站配置的DL-PRS配置信息集合中。
步骤3b:可选的,(若LMF已经通过ProvideAssistanceData消息给UE下发为其配置的DL-PRS资源)LMF收到UE发送的携带请求变更DL-PRS配置信息的PRS资源配置请求消息,且当UE请求变更的DL-PRS配置信息为以下至少一项:
请求增加的DL-PRS资源对应的BWP ID;
请求增加的DL-PRS资源对应的定位频率层ID;
请求增加的DL-PRS资源对应的基站ID;
请求增加的DL-PRS资源对应的TRP ID;
请求增加的DL-PRS资源集ID;
请求增加的DL-PRS资源ID;
请求增加DL-PRS资源的周期;
请求增加DL-PRS资源的重复次数;
请求增加DL-PRS资源的传输时刻;
请求增加DL-PRS资源的持续时长;
则LMF判断UE请求的DL-PRS配置信息是否在LMF从基站获取到的基站配置的DL-PRS配置信息集合中。
步骤3c:可选的,(若LMF已经通过ProvideAssistanceData消息给UE下发为其配置的DL-PRS资源)LMF收到UE发送的携带请求变更DL-PRS配置信息的PRS资源配置请求消息,且当UE请求变更的DL-PRS配置信息为以下至少一项:
请求减少的DL-PRS资源对应的BWP ID;
请求减少的DL-PRS资源对应的定位频率层ID;
请求减少的DL-PRS资源对应的基站ID;
请求减少的DL-PRS资源对应的TRP ID;
请求减少的DL-PRS资源集ID;
请求减少的DL-PRS资源ID;
请求减少DL-PRS资源的周期;
请求减少DL-PRS资源的重复次数;
请求减少DL-PRS资源的传输时刻;
请求减少DL-PRS资源的持续时长;
则LMF先检查UE请求减少的这些DL-PRS资源当前是否被其它定位终端使用。
步骤3d:若LMF收到UE发送的包含请求变更波束方向DL-PRS配置的PRS资源配置请求消息,则LMF先检查UE请求变更波束方向的DL-PRS资源当前是否被其它定位终端使用。
步骤4a:针对步骤3a和3b,若UE请求的DL-PRS配置信息在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则LMF返回PRS资源配置请求响应消息给UE,并在其中指示UE请求的DL-PRS配置信息已经被配置。
步骤4b:针对步骤3a和3b,若UE请求的DL-PRS配置信息不在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则LMF向基站发送DL-PRS重配置消息,其中携带UE请求的DL-PRS配置信息。
步骤4c:针对步骤3c和3d,若LMF检测到UE请求变更的DL-PRS资源尚未被其它定位终端使用,则LMF给基站发送DL-PRS重配置消息,其中携带UE请求变更的DL-PRS配置信息。
步骤4d:针对步骤3c和3d,若LMF检测到UE请求变更的DL-PRS资源已经被其它定位终端使用,LMF拒绝UE的请求,并返回PRS资源配置请求响应消息给UE,并在其中指示UE请求变更的DL-PRS配置信息不能被接受。
步骤5:针对步骤4b和步骤4c,执行实施例2中的操作。
步骤6:针对步骤5,LMF从基站获取到DL-PRS重配置响应消息后:
若该DL-PRS重配置响应消息指示基站已经完成请求的DL-PRS配置,则LMF发送PRS资源配置请求响应消息给UE,指示UE其请求的DL-PRS资源已经被接受,和/或并在该消息中携带重配置后的DL-PRS资源;
若该DL-PRS重配置响应消息指示基站不能配置请求的DL-PRS配置,则LMF发送PRS资源配置请求响应消息给UE,指示UE其请求的DL-PRS资源未被接受。
步骤7:针对步骤4a,步骤4d和步骤6,UE响应定时器T1超时前未收到了LMF反馈的PRS资源配置请求响应消息,则UE判断PRS请求次数N是否小于LMF为其配置的最大请求次数限制。
步骤8a:若PRS请求次数N小于LMF为UE配置的最大请求次数限制,则:
若UE侧配置了间隔定时器T2,则UE等待间隔定时器T2超时后重新发起新的DL-PRS 配置信息请求过程;
若UE侧未配置间隔定时器T2,则UE重新发起新的DL-PRS配置信息请求过程。
步骤8a:若PRS请求次数N等于LMF为UE配置的最大请求次数限制,则:
若UE侧配置了间隔定时器T2,则UE关闭间隔定时器T2,并基于LMF为其配置的辅助信息中的PRS进行测量;
可选的,UE基于LMF为其配置的辅助信息中的PRS进行测量之前,发起不携带PRS配置信息的RequestAssistanceData消息给LMF请求获取LMF侧配置的PRS。
若UE侧未配置间隔定时器T2,则UE基于LMF为其配置的辅助信息中的PRS进行测量;
可选的,UE基于LMF为其配置的辅助信息中的PRS进行测量之前,发起不携带PRS配置信息的RequestAssistanceData消息给LMF请求获取LMF侧配置的PRS。
综上所述,本申请实施例中,UE基于自身需求,结合LMF预配置的可用的PRS配置信息集合,并可以进一步结合最大UE触发PRS变更的次数,和/或UE触发PRS配置变更相关的定时器配置信息,来触发PRS配置变更的方法,以根据UE需求来实现灵活动态的配置DL-PRS,以提高网络效率,和保障定位精度。
在终端侧,参见图4,本申请实施例提供的一种PRS资源确定方法,包括:
S101、获取LMF预配置的可用的PRS配置信息集合;
S102、基于所述LMF预配置的可用的PRS配置信息集合,向所述LMF发送PRS资源配置请求。
本申请实施例所述方法中,通过终端获取LMF预配置的可用的PRS配置信息集合;基于所述LMF预配置的可用的PRS配置信息集合,向所述LMF发送PRS资源配置请求,从而实现了根据UE需求灵活动态的请求配置DL-PRS,提高了网络效率,并保障了定位精度。
在LMF侧,参见图5,本申请实施例提供的一种PRS资源确定方法,包括:
S201、LMF向终端发送LPP消息;
S202、所述LMF接收所述终端发送的PRS资源配置请求消息。
在基站侧,参见图6,本申请实施例提供的一种PRS资源确定方法,包括:
S301、基站接收LMF发送的携带PRS配置信息的DL-PRS重配置消息;
S302、所述基站从所述DL-PRS重配置消息中获取终端请求的DL-PRS配置信息,所述DL-PRS配置信息,来自于终端基于LMF预配置的PRS配置信息集合,向所述LMF发送的PRS资源配置请求。
在终端侧,参见图7,本申请实施例提供的一种PRS资源确定装置,包括:
存储器620,用于存储程序指令;
处理器600,用于调用所述存储器中存储的程序指令,按照获得的程序执行:
获取LMF预配置的可用的PRS配置信息集合;
基于所述LMF预配置的可用的PRS配置信息集合,向所述LMF发送PRS资源配置请求。
收发机610,用于在处理器600的控制下接收和发送数据。
其中,在图7中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器600代表的一个或多个处理器和存储器620代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机610可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口630还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器600负责管理总线架构和通常的处理,存储器620可以存储处理器600在执行操作时所使用的数据。
可选的,处理器600可以是CPU(中央处埋器)、ASIC(Application Specific Integrated Circuit,专用集成电路)、FPGA(Field-Programmable Gate Array,现场可编程门阵列)或CPLD(Complex Programmable Logic Device,复杂可编程逻辑器件)。
在LMF侧,参见图8,本申请实施例提供的一种PRS资源确定装置,包括:
存储器11,用于存储程序指令;
处理器12,用于调用所述存储器中存储的程序指令,按照获得的程序执行:
给终端发送LPP消息;
接收所述终端发送的PRS资源配置请求消息。
其中,在图8中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器12代表的一个或多个处理器和存储器11代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。
处理器12负责管理总线架构和通常的处理,存储器11可以存储处理器12在执行操作时所使用的数据。
可选的,处理器12可以是CPU(中央处埋器)、ASIC(Application Specific Integrated  Circuit,专用集成电路)、FPGA(Field-Programmable Gate Array,现场可编程门阵列)或CPLD(Complex Programmable Logic Device,复杂可编程逻辑器件)。
在基站侧,参见图9,本申请实施例提供的一种PRS资源确定装置,包括:
存储器520,用于存储程序指令;
处理器500,用于调用所述存储器中存储的程序指令,按照获得的程序执行:
接收LMF发送的携带PRS配置信息的DL-PRS重配置消息;
从所述DL-PRS重配置消息中获取终端请求的DL-PRS配置信息,所述DL-PRS配置信息,来自于终端基于LMF预配置的PRS配置信息集合,向所述LMF发送的PRS资源配置请求。
收发机510,用于在处理器500的控制下接收和发送数据。
其中,在图9中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器500代表的一个或多个处理器和存储器520代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机510可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。处理器500负责管理总线架构和通常的处理,存储器520可以存储处理器500在执行操作时所使用的数据。
处理器500可以是中央处埋器(CPU)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device,CPLD)。
在终端侧,参见图10,本申请实施例提供的另一种PRS资源确定装置,包括:
获取单元21,用于获取LMF预配置的可用的PRS配置信息集合;
请求单元22,用于基于所述LMF预配置的可用的PRS配置信息集合,向所述LMF发送PRS资源配置请求。
在LMF侧,参见图11,本申请实施例提供的另一种PRS资源确定装置,包括:
发送单元111,用于给终端发送LPP消息;
接收单元112,用于接收所述终端发送的PRS资源配置请求消息。
在基站侧,参见图12,本申请实施例提供的另一种PRS资源确定装置,包括:
接收单元121,用于接收LMF发送的携带PRS配置信息的DL-PRS重配置消息;
获取单元122,用于从所述DL-PRS重配置消息中获取终端请求的DL-PRS配置信息,所述DL-PRS配置信息,来自于终端基于LMF预配置的PRS配置信息集合,向所述LMF 发送的PRS资源配置请求。
需要说明的是,本申请实施例中对单元的划分是示意性的,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。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。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本申请实施例提供了一种计算设备,该计算设备具体可以为桌面计算机、便携式计算机、智能手机、平板电脑、个人数字助理(Personal Digital Assistant,PDA)等。该计算设备可以包括中央处理器(Center Processing Unit,CPU)、存储器、输入/输出设备等,输入设备可以包括键盘、鼠标、触摸屏等,输出设备可以包括显示设备,如液晶显示器(Liquid Crystal Display,LCD)、阴极射线管(Cathode Ray Tube,CRT)等。
存储器可以包括只读存储器(ROM)和随机存取存储器(RAM),并向处理器提供存储器中存储的程序指令和数据。在本申请实施例中,存储器可以用于存储本申请实施例提供的任一所述方法的程序。
处理器通过调用存储器存储的程序指令,处理器用于按照获得的程序指令执行本申请实施例提供的任一所述方法。
本申请实施例提供了一种计算机存储介质,用于储存为上述本申请实施例提供的装置所用的计算机程序指令,其包含用于执行上述本申请实施例提供的任一方法的程序。
所述计算机存储介质可以是计算机能够存取的任何可用介质或数据存储设备,包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
上述方法处理流程可以用软件程序实现,该软件程序可以存储在存储介质中,当存储 的软件程序被调用时,执行上述方法步骤。
本领域内的技术人员应明白,本申请的实施例可提供为方法、系统、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。

Claims (34)

  1. 一种定位参考信号PRS资源确定方法,其中,该方法包括:
    获取定位管理功能实体LMF预配置的可用的PRS配置信息集合;
    基于所述LMF预配置的可用的PRS配置信息集合,向所述LMF发送PRS资源配置请求。
  2. 根据权利要求1所述的方法,其中,向所述LMF发送的PRS资源配置请求中,包括以下至少一项或者多项:
    终端基于所述LMF预配置的可用的PRS配置信息集合,选择的PRS配置信息;
    终端基于所述预配置的PRS配置信息集合及已经从LMF处获取到的PRS资源,确定的要请求变更的PRS资源的配置信息;
    下行定位参考信号DL-PRS波束方向相关的配置信息。
  3. 根据权利要求2所述的方法,其中,所述终端选择的PRS配置信息包括以下至少一项或者多项:
    DL-PRS资源对应的部分带宽BWP标识ID;
    DL-PRS资源对应的定位频率层ID;
    DL-PRS资源对应的基站ID;
    DL-PRS资源对应的传输点TRP ID;
    DL-PRS资源集ID;
    DL-PRS资源ID;
    DL-PRS资源的周期;
    DL-PRS资源的周期使用的重复次数;
    DL-PRS资源的静默格式muting pattern;
    DL-PRS资源的传输时刻;
    DL-PRS资源的持续时长。
  4. 根据权利要求2所述的方法,其中,所述请求变更的PRS资源的配置信息包括以下至少一项或者多项:
    请求增加,或减少的DL-PRS资源对应的BWP ID;
    请求增加,或减少的DL-PRS资源对应的定位频率层ID;
    请求增加,或减少的DL-PRS资源对应的基站ID;
    请求增加,或减少的DL-PRS资源对应的TRP ID;
    请求增加,或减少的DL-PRS资源集ID;
    请求增加,或减少的DL-PRS资源ID;
    请求增加,或减少DL-PRS资源的周期;
    请求增加,或减少DL-PRS资源的周期使用的重复次数;
    请求变更DL-PRS资源的muting pattern;
    请求增加,或减少DL-PRS资源的传输时刻;
    请求增加,或减少DL-PRS资源的持续时长。
  5. 根据权利要求2所述的方法,其中,所述DL-PRS资源的波束方向相关的配置信息包括以下至少一项或者多项:
    DL-PRS资源对应的基站ID;
    DL-PRS资源对应的TRP ID;
    DL-PRS资源对应的资源集ID;
    最佳波束接收方向对应的SSB_index。
  6. 根据权利要求1所述的方法,其中,向所述LMF发送PRS资源配置请求之后,还包括执行以下至少一项或者多项操作:
    更新向所述LMF发起PRS资源配置请求的次数;
    根据LMF发送的定时器的配置信息,开启定时器,其中所述定时器包括第一定时器和/或第二定时器。
  7. 根据权利要求6所述的方法,其中,若未开启所述第一定时器,和/或,开启了所述第一定时器但在所述第一定时器超时前,收到了LMF返回的PRS资源配置请求响应消息,则:
    若所述响应消息中指示终端请求的DL-PRS配置信息被接受,则执行:
    关闭第一定时器;
    关闭第二定时器;
    基于请求的DL-PRS配置信息更新终端的DL-PRS配置,并在更新后的DL-PRS配置的DL-PRS资源上进行测量中的至少一项或者多项操作;
    若所述响应消息中指示终端请求变更的DL-PRS配置信息不能被接受,则执行:
    等待第二定时器超时,并重新发起PRS资源配置请求;
    关闭第一定时器;
    重新发起PRS资源配置请求;
    关闭第二定时器,并向LMF发起辅助信息请求过程;
    向LMF发起辅助信息请求过程中的至少一项或者多项操作。
  8. 根据权利要求6所述的方法,其中,若开启了第一定时器,但在第一定时器超时前未收到LMF返回的PRS资源配置请求响应消息,则执行以下至少一项或者多项操作:
    等待第二定时器超时后,再发起PRS资源配置请求;
    重新发起PRS资源配置请求;
    关闭第二定时器,并向LMF发起辅助信息请求过程;
    向LMF发起辅助信息请求过程。
  9. 一种定位参考信号PRS资源确定方法,其中,该方法包括:
    LMF向终端发送长期演进位置协议LPP消息;
    所述LMF接收所述终端发送的PRS资源配置请求消息。
  10. 根据权利要求9所述的方法,其中,所述LPP消息中包括以下至少一项:
    预配置的可用的PRS配置信息集合;
    终端侧发起PRS变更的最大PRS请求次数;
    终端侧发起PRS变更相关的定时器配置信息。
  11. 根据权利要求10所述的方法,其中,所述预配置的可用的PRS配置信息集合用于所述终端发起动态PRS请求,且包括以下至少一项或者多项信息:
    可用的DL-PRS资源对应的BWP ID;
    可用的DL-PRS资源对应的定位频率层ID;
    可用的DL-PRS资源对应的基站ID;
    可用的DL-PRS资源对应的TRP ID;
    可用的DL-PRS资源集ID;
    可用的DL-PRS资源ID;
    可用的DL-PRS资源周期的集合;
    可用的DL-PRS资源重复次数的集合;
    可用的DL-PRS资源muting pattern的集合。
  12. 根据权利要求10所述的方法,其中,所述终端侧发起PRS变更相关的定时器配置信息包括以下至少一项或者多项信息:
    第一定时器的配置信息,所述第一定时器为终端发送所述请求后的响应定时器;
    第二定时器的配置信息,所述第二定时器为终端连续发送两次所述请求之间的间隔定时器。
  13. 根据权利要求9所述的方法,其中,所述LMF接收到的所述终端发送的PRS资 源配置请求消息中包括终端选择的DL-PRS配置信息;
    该方法还包括:
    若终端请求的DL-PRS配置信息在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则所述LMF返回PRS资源配置请求响应消息给所述终端,其中携带终端所请求的DL-PRS配置信息已经被配置的指示;
    若终端请求的DL-PRS配置信息不在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则所述LMF向基站发送DL-PRS重配置消息,其中携带终端请求的DL-PRS配置信息。
  14. 根据权利要求9所述的方法,其中,所述LMF接收到的所述终端发送的PRS资源配置请求消息中包括终端请求变更的DL-PRS配置信息,且所述请求变更的DL-PRS配置信息包含:
    请求增加的DL-PRS资源对应的BWP ID;
    请求增加的DL-PRS资源对应的定位频率层ID;
    请求增加的DL-PRS资源对应的基站ID;
    请求增加的DL-PRS资源对应的TRP ID;
    请求增加的DL-PRS资源集ID;
    请求增加的DL-PRS资源ID;
    请求增加DL-PRS资源的周期;
    请求增加DL-PRS资源的重复次数;
    请求增加DL-PRS资源的传输时刻;
    请求增加DL-PRS资源的持续时长中至少一项或者多项;
    该方法还包括:
    若终端请求变更的DL-PRS配置信息在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则返回PRS资源配置请求响应消息给所述终端,其中携带终端所请求变更的DL-PRS配置信息已经被配置的指示;
    若终端请求变更的DL-PRS配置信息不在LMF从基站获取到的基站预配置的DL-PRS配置信息集合中,则向基站发送DL-PRS重配置消息,其中携带终端请求变更的DL-PRS配置信息。
  15. 根据权利要求9所述的方法,其中,所述LMF接收到的所述终端发送的PRS资源配置请求消息中包括终端请求变更的DL-PRS配置信息,且所述请求变更的DL-PRS配置信息包含:
    请求减少的DL-PRS资源对应的BWP ID;
    请求减少的DL-PRS资源对应的定位频率层ID;
    请求减少的DL-PRS资源对应的基站ID;
    请求减少的DL-PRS资源对应的TRP ID;
    请求减少的DL-PRS资源集ID;
    请求减少的DL-PRS资源ID;
    请求减少DL-PRS资源的周期;
    请求减少DL-PRS资源的重复次数;
    请求减少DL-PRS资源的传输时刻;
    请求减少DL-PRS资源的持续时长中的至少一项或者多项;
    该方法还包括:
    若所述终端请求变更的DL-PRS资源当前被其它定位终端使用,则返回PRS资源配置请求响应消息给所述终端,其中携带该终端所请求变更的DL-PRS配置信息不能被接受的指示;
    若所述终端请求变更的DL-PRS资源当前未被其它定位终端使用,则向基站发送DL-PRS重配置消息,其中携带所述终端请求变更的DL-PRS配置信息。
  16. 根据权利要求9所述的方法,其中,所述LMF接收到的所述终端发送的PRS资源配置请求消息中包括DL-PRS波束方向相关的配置信息;
    所述方法还包括:
    若所述终端请求变更波束方向的DL-PRS资源当前被其它定位终端使用,则向所述终端发送PRS资源配置请求响应消息,其中携带该终端DL-PRS资源的波束方向相关的配置信息不能被接受的指示;
    若所述终端请求变更波束方向的DL-PRS资源当前未被其它定位终端使用,向基站发送DL-PRS重配置消息,其中携带所述终端请求的DL-PRS资源的波束方向相关的配置信息。
  17. 根据权利要求9所述的方法,其中,该方法还包括:
    所述LMF接收基站反馈的重配置响应消息,所述重配置响应消息为基站针对DL-PRS重配置消息的响应;
    若所述基站反馈的重配置响应消息指示所述请求已经被接受,则所述LMF向终端发送PRS资源配置请求响应消息,其中携带该终端所请求的DL-PRS资源已经被接受的指示,和/或重配置的DL-PRS资源配置信息;
    若所述基站反馈的重配置响应消息指示所述请求被拒绝,则所述LMF向终端发送PRS资源配置请求响应消息,其中携带该终端请求的DL-PRS资源未被接受的指示。
  18. 一种定位参考信号PRS资源确定方法,其中,该方法包括:
    基站接收LMF发送的携带PRS配置信息的DL-PRS重配置消息;
    所述基站从所述DL-PRS重配置消息中获取终端请求的DL-PRS配置信息,所述DL-PRS配置信息,来自于终端基于LMF预配置的PRS配置信息集合,向所述LMF发送的PRS资源配置请求。
  19. 根据权利要求18所述的方法,其中,所述基站接收到所述LMF发送的DL-PRS重配置消息后,所述方法还包括:
    若基于所述DL-PRS重配置消息重配置PRS资源,则所述基站返回重配置响应消息给LMF,其中,所述重配置响应消息中携带基站已完成PRS配置的指示;
    若不能依据所述DL-PRS重配置消息进行PRS资源配置,则返回重配置响应消息给LMF,其中,所述重配置响应消息中携带指示基站不能配置请求的PRS资源的指示。
  20. 一种定位参考信号PRS资源确定装置,其中,包括:
    存储器,用于存储程序指令;
    处理器,用于调用所述存储器中存储的程序指令,按照获得的程序执行:
    获取定位管理功能实体LMF预配置的可用的PRS配置信息集合;
    基于所述LMF预配置的可用的PRS配置信息集合,向所述LMF发送PRS资源配置请求。
  21. 根据权利要求20所述的装置,其中,向所述LMF发送的PRS资源配置请求中,包括以下至少一项或者多项:
    基于所述LMF预配置的可用的PRS配置信息集合,选择的PRS配置信息;
    基于所述预配置的PRS配置信息集合及已经从LMF处获取到的PRS资源,确定的要请求变更的PRS资源的配置信息;
    下行定位参考信号DL-PRS波束方向相关的配置信息。
  22. 根据权利要求21所述的装置,其中,所述选择的PRS配置信息包括以下至少一项或者多项:
    DL-PRS资源对应的部分带宽BWP标识ID;
    DL-PRS资源对应的定位频率层ID;
    DL-PRS资源对应的基站ID;
    DL-PRS资源对应的传输点TRP ID;
    DL-PRS资源集ID;
    DL-PRS资源ID;
    DL-PRS资源的周期;
    DL-PRS资源的周期使用的重复次数;
    DL-PRS资源的静默格式muting pattern;
    DL-PRS资源的传输时刻;
    DL-PRS资源的持续时长。
  23. 根据权利要求21所述的装置,其中,所述请求变更的PRS资源的配置信息包括以下至少一项或者多项:
    请求增加,或减少的DL-PRS资源对应的BWP ID;
    请求增加,或减少的DL-PRS资源对应的定位频率层ID;
    请求增加,或减少的DL-PRS资源对应的基站ID;
    请求增加,或减少的DL-PRS资源对应的TRP ID;
    请求增加,或减少的DL-PRS资源集ID;
    请求增加,或减少的DL-PRS资源ID;
    请求增加,或减少DL-PRS资源的周期;
    请求增加,或减少DL-PRS资源的周期使用的重复次数;
    请求变更DL-PRS资源的muting pattern;
    请求增加,或减少DL-PRS资源的传输时刻;
    请求增加,或减少DL-PRS资源的持续时长。
  24. 根据权利要求21所述的装置,其中,所述DL-PRS资源的波束方向相关的配置信息包括以下至少一项或者多项:
    DL-PRS资源对应的基站ID;
    DL-PRS资源对应的TRP ID;
    DL-PRS资源对应的资源集ID;
    最佳波束接收方向对应的SSB_index。
  25. 根据权利要求20所述的装置,其中,向所述LMF发送PRS资源配置请求之后,还包括执行以下至少一项或者多项操作:
    更新向所述LMF发起PRS资源配置请求的次数;
    根据LMF发送的定时器的配置信息,开启定时器,其中所述定时器包括第一定时器和/或第二定时器。
  26. 根据权利要求25所述的装置,其中,若未开启所述第一定时器,和/或,开启了所述第一定时器,但在所述第一定时器超时前,收到了LMF返回的PRS资源配置请求响应消息,则:
    若所述响应消息中指示终端请求的DL-PRS配置信息被接受,则执行:
    关闭第一定时器;
    关闭第二定时器;
    基于请求的DL-PRS配置信息更新终端的DL-PRS配置,并在更新后的DL-PRS配置的DL-PRS资源上进行测量中的至少一项或者多项操作;
    若所述响应消息中指示终端请求变更的DL-PRS配置信息不能被接受,则执行:
    等待第二定时器超时,并重新发起PRS资源配置请求;
    关闭第一定时器;
    重新发起PRS资源配置请求;
    关闭第二定时器,并向LMF发起辅助信息请求过程;
    向LMF发起辅助信息请求过程中的至少一项或者多项操作。
  27. 根据权利要求25所述的装置,其中,若开启了第一定时器,但在第一定时器超时前未收到LMF发送的PRS资源配置请求响应消息,则执行以下至少一项或者多项操作:
    等待第二定时器超时后,再发起PRS资源配置请求;
    重新发起PRS资源配置请求;
    关闭第二定时器,并向LMF发起辅助信息请求过程;
    向LMF发起辅助信息请求过程。
  28. 一种定位参考信号PRS资源确定装置,其中,该装置包括:
    存储器,用于存储程序指令;
    处理器,用于调用所述存储器中存储的程序指令,按照获得的程序执行:
    给终端发送长期演进位置协议LPP消息;
    接收所述终端发送的PRS资源配置请求消息。
  29. 根据权利要求28所述的装置,其中,所述LPP消息中包括以下至少一项或者多项:
    预配置的可用的PRS配置信息集合;
    终端侧发起PRS变更的最大PRS请求次数;
    终端侧发起PRS变更相关的定时器配置信息。
  30. 一种定位参考信号PRS资源确定装置,其中,该装置包括:
    存储器,用于存储程序指令;
    处理器,用于调用所述存储器中存储的程序指令,按照获得的程序执行:
    接收LMF发送的携带PRS配置信息的DL-PRS重配置消息;
    从所述PRS重配置消息中获取终端请求的DL-PRS配置信息,所述DL-PRS配置信息,来自于终端基于LMF预配置的PRS配置信息集合,向所述LMF发送的PRS资源配置请求。
  31. 一种定位参考信号PRS资源确定装置,其中,该装置包括:
    获取单元,用于获取定位管理功能实体LMF预配置的可用的PRS配置信息集合;
    请求单元,用于基于所述LMF预配置的可用的PRS配置信息集合,向所述LMF发送PRS资源配置请求。
  32. 一种定位参考信号PRS资源确定装置,其中,该装置包括:
    发送单元,用于给终端发送长期演进位置协议LPP消息;
    接收单元,用于接收所述终端发送的PRS资源配置请求消息。
  33. 一种定位参考信号PRS资源确定装置,其中,该装置包括:
    接收单元,用于接收LMF发送的携带PRS配置信息的DL-PRS重配置消息;
    获取单元,用于从所述DL-PRS重配置消息中获取终端请求的DL-PRS配置信息,所述DL-PRS配置信息,来自于终端基于LMF预配置的PRS配置信息集合,向所述LMF发送的PRS资源配置请求。
  34. 一种计算机存储介质,其中,所述计算机存储介质存储有计算机可执行指令,所述计算机可执行指令用于使所述计算机执行权利要求1至19任一项所述的方法。
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