WO2022000200A1 - 定位参考信号配置方法及装置、用户设备、存储介质 - Google Patents

定位参考信号配置方法及装置、用户设备、存储介质 Download PDF

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Publication number
WO2022000200A1
WO2022000200A1 PCT/CN2020/099010 CN2020099010W WO2022000200A1 WO 2022000200 A1 WO2022000200 A1 WO 2022000200A1 CN 2020099010 W CN2020099010 W CN 2020099010W WO 2022000200 A1 WO2022000200 A1 WO 2022000200A1
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Prior art keywords
specific prs
configuration
positioning
prs configuration
specific
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PCT/CN2020/099010
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English (en)
French (fr)
Inventor
董贤东
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202080001398.4A priority Critical patent/CN114128361B/zh
Priority to PCT/CN2020/099010 priority patent/WO2022000200A1/zh
Priority to US18/003,897 priority patent/US20230269047A1/en
Publication of WO2022000200A1 publication Critical patent/WO2022000200A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the embodiments of the present disclosure relate to a positioning reference signal (Positioning Reference Signaling, PRS) configuration technology, and in particular, to a positioning reference signal configuration method and apparatus, user equipment, and storage medium.
  • PRS Positioning Reference Signaling
  • a cell supports only one set of PRS configurations at a certain time, and all users in the cell use the same PRS configuration.
  • the positioning types may be different. Therefore, different users have different configuration requirements for the PRS, so as to meet different positioning requirements such as different positioning accuracy and delay.
  • embodiments of the present disclosure provide a positioning reference signal configuration method and apparatus, user equipment, and storage medium.
  • a positioning reference signal configuration method including:
  • LMF Location Management Function
  • the LMF determines that the cell-specific PRS configuration used for UE positioning does not meet the positioning requirements of the UE, comprising:
  • the LMF receives a positioning request message for the UE, and determines, based on the positioning request message, that the cell-specific PRS configuration used for positioning the UE does not meet the positioning requirements of the UE.
  • the method further includes:
  • the LMF and the base station pre-determine a UE-specific PRS configuration, and the UE-specific PRS configuration is pre-configured in the base station;
  • the method further includes:
  • the LMF determines that the cell-specific PRS configuration of the UE does not meet the positioning requirement of the UE, it sends the configuration parameters of the UE-specific PRS to the base station, so that the base station sends the cell-specific PRS configuration and the UE-specific PRS configuration.
  • the configuration parameters of the UE-specific PRS include at least one of the following information:
  • the transmission period of the UE-specific PRS, the transmission start time of the UE-specific PRS, and the transmission beam of the UE-specific PRS is not limited.
  • the method further includes:
  • the LMF sends the identification information of the UE to which the UE-specific PRS configuration is applicable to the base station, so that the base station sends the identification information to the UE corresponding to the identification information based on the identification information of the UE to which the UE-specific PRS configuration is applicable.
  • RRC Radio Resource Control
  • the method further includes:
  • the LMF sends positioning assistance information to the UE, where the positioning assistance information carries the UE-specific PRS configuration, so that the UE receives the UE-specific PRS based on the UE-specific PRS configuration.
  • a positioning reference signal configuration method including:
  • the UE receives the downlink message that is sent by the network device and carries the UE-specific PRS configuration, receives the UE-specific PRS based on the UE-specific PRS configuration, and performs positioning based on the UE-specific PRS.
  • the method further includes:
  • the UE determines that the UE receives the UE-specific PRS configuration based on the RRC message sent by the base station or the positioning assistance information sent by the LMF, the cell-specific PRS configuration sent by the network device through the system message is ignored.
  • the method further includes:
  • the UE receiving, by the UE, a downlink control message sent by the base station, where the downlink control message carries resource information bearing the UE-specific PRS configuration; determining the UE-specific PRS configuration based on the downlink control message; or
  • the UE receives the positioning assistance information sent by the LMF, where the downlink positioning assistance information carries resource information bearing the UE-specific PRS configuration; and determines the UE-specific PRS configuration based on the positioning assistance information.
  • the method further includes:
  • the UE receives the cell-specific PRS configuration sent by the network device, and sends the cell-specific PRS based on the cell-specific PRS configuration.
  • the UE-specific PRS configuration includes at least one of the following information:
  • the transmission period of the UE-specific PRS, the transmission start time of the UE-specific PRS, and the transmission beam of the UE-specific PRS is not limited.
  • an apparatus for configuring a positioning reference signal including:
  • a first determining unit configured to determine whether the cell-specific positioning reference signal PRS configuration used for the positioning of the user equipment UE meets the positioning requirement of the UE, and triggers a second determining unit when the positioning requirement of the UE is not met;
  • a second determining unit configured to determine a UE-specific PRS configuration for the UE
  • a sending unit configured to send the determined UE-specific PRS configuration.
  • the first determining unit is further configured to:
  • the cell-specific PRS configuration used for positioning the UE does not meet the positioning requirements of the UE.
  • the apparatus further includes:
  • a configuration unit configured to pre-determine a UE-specific PRS configuration with the base station, and pre-configure the UE-specific PRS configuration in the base station;
  • the first determining unit is further configured to, in response to determining that the cell-specific PRS configuration of the UE does not meet the positioning requirement of the UE, trigger the sending unit to send to the base station indication information for enabling the UE-specific PRS configuration, so that the base station sends the cell-specific PRS configuration and the UE-specific PRS configuration based on the indication information.
  • the first determining unit is further configured to trigger the sending unit to send the configuration parameters of the UE-specific PRS to the base station when it is determined that the cell-specific PRS configuration of the UE does not meet the positioning requirement of the UE , so that the base station sends the cell-specific PRS configuration and the UE-specific PRS configuration.
  • the configuration parameters of the UE-specific PRS include at least one of the following information:
  • the transmission period of the UE-specific PRS, the transmission start time of the UE-specific PRS, and the transmission beam of the UE-specific PRS is not limited.
  • the sending unit is further configured to:
  • the sending unit is further configured to:
  • the positioning assistance information carries the UE-specific PRS configuration, so that the UE receives the UE-specific PRS based on the UE-specific PRS configuration.
  • an apparatus for configuring a positioning reference signal including:
  • a receiving unit configured to receive a downlink message carrying a UE-specific PRS configuration sent by a network device, and receive a UE-specific PRS based on the UE-specific PRS configuration;
  • a positioning unit configured to perform positioning based on the UE-specific PRS.
  • the receiving unit is further configured to:
  • the cell-specific PRS configuration sent by the network device through the system message is ignored.
  • the receiving unit is further configured to:
  • the downlink positioning assistance information carries resource information bearing the UE-specific PRS configuration; and determine the UE-specific PRS configuration based on the positioning assistance information.
  • the receiving unit is further configured to:
  • the cell-specific PRS sent by the base station is received based on the cell-specific PRS configuration.
  • the UE-specific PRS configuration includes at least one of the following information:
  • the transmission period of the UE-specific PRS, the transmission start time of the UE-specific PRS, and the transmission beam of the UE-specific PRS is not limited.
  • a user equipment including a processor, a transceiver, a memory, and an executable program stored on the memory and executable by the processor, the processor running the executable program The steps of the positioning reference signal configuration method are executed when the program is executed.
  • a storage medium on which an executable program is stored, and when the executable program is executed by a processor, the steps of the positioning reference signal configuration method are implemented.
  • the positioning reference signal configuration method and device, user equipment, and storage medium configure UE-specific PRS configuration for user equipment with high positioning requirements according to different PRS configuration requirements of different user equipments, so that this part of UE can be configured according to UE With specific PRS configuration, the UE-specific PRS is sent to the network side, so that the network side can achieve more precise positioning for the UE based on the UE-specific PRS.
  • the embodiments of the present disclosure provide differentiated PRS configurations for UEs with different positioning requirements, and the UEs monitor cell-specific PRS configurations or UE-specific PRS configurations according to their own requirements, thereby meeting different positioning requirements of UEs.
  • FIG. 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment
  • FIG. 2 is a schematic flowchart of a method for configuring a positioning reference signal according to an exemplary embodiment
  • FIG. 3 is a schematic flowchart of a method for configuring a positioning reference signal according to an exemplary embodiment
  • FIG. 4 is a schematic flowchart of a method for configuring a positioning reference signal according to an exemplary embodiment
  • FIG. 5 is a schematic flowchart of a method for configuring a positioning reference signal according to an exemplary embodiment
  • FIG. 6 is a schematic flowchart of a method for configuring a positioning reference signal according to an exemplary embodiment
  • FIG. 7 is a schematic diagram showing the composition and structure of an apparatus for configuring a positioning reference signal according to an exemplary embodiment
  • FIG. 8 is a schematic diagram showing the composition and structure of an apparatus for configuring a positioning reference signal according to an exemplary embodiment
  • Fig. 9 is a schematic diagram showing the composition and structure of a user equipment according to an exemplary embodiment.
  • first, second, third, etc. may be used in embodiments of the present disclosure to describe various pieces of information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • the word "if” as used herein can be interpreted as "at the time of” or "when” or "in response to determining.”
  • FIG. 1 shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure.
  • the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: several terminals 11 and several base stations 12 .
  • the terminal 11 may be a device that provides voice and/or data connectivity to the user.
  • the terminal 11 may communicate with one or more core networks via a radio access network (RAN), and the terminal 11 may be an IoT terminal such as a sensor device, a mobile phone (or "cellular" phone) and a
  • RAN radio access network
  • the computer of the IoT terminal for example, may be a fixed, portable, pocket, hand-held, built-in computer or a vehicle-mounted device.
  • a station For example, a station (Station, STA), a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a mobile station (mobile), a remote station (remote station), an access point, a remote terminal ( remote terminal), access terminal (access terminal), user device (user terminal), user agent (user agent), user equipment (user device), or user equipment (user equipment, UE).
  • the terminal 11 may also be a device of an unmanned aerial vehicle.
  • the terminal 11 may also be a vehicle-mounted device, for example, a trip computer with a wireless communication function, or a wireless communication device externally connected to the trip computer.
  • the terminal 11 may also be a roadside device, for example, a street light, a signal light, or other roadside devices with a wireless communication function.
  • the base station 12 may be a network-side device in a wireless communication system.
  • the wireless communication system may be a fourth generation mobile communication (the 4th generation mobile communication, 4G) system, also known as a long term evolution (Long Term Evolution, LTE) system; or, the wireless communication system may also be a 5G system, Also known as new radio (NR) system or 5G NR system.
  • the wireless communication system may also be a next-generation system of the 5G system.
  • the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network, a new generation of radio access network).
  • the MTC system may be a network-side device in a wireless communication system.
  • the base station 12 may be an evolved base station (eNB) used in the 4G system.
  • the base station 12 may also be a base station (gNB) that adopts a centralized distributed architecture in a 5G system.
  • eNB evolved base station
  • gNB base station
  • the base station 12 adopts a centralized distributed architecture it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU).
  • the centralized unit is provided with a protocol stack of a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control Protocol (Radio Link Control, RLC) layer, and a Media Access Control (Media Access Control, MAC) layer; distribution A physical (Physical, PHY) layer protocol stack is set in the unit, and the specific implementation manner of the base station 12 is not limited in this embodiment of the present disclosure.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control Protocol
  • MAC Media Access Control
  • distribution A physical (Physical, PHY) layer protocol stack is set in the unit, and the specific implementation manner of the base station 12 is not limited in this embodiment of the present disclosure.
  • a wireless connection can be established between the base station 12 and the terminal 11 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, such as
  • the wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on a 5G next-generation mobile communication network technology standard.
  • an E2E (End to End, end-to-end) connection may also be established between the terminals 11 .
  • V2V vehicle to vehicle, vehicle-to-vehicle
  • V2I vehicle to Infrastructure, vehicle-to-roadside equipment
  • V2P vehicle to pedestrian, vehicle-to-person communication in vehicle-to-everything (V2X) communication etc. scene.
  • the above wireless communication system may further include a network management device 13 .
  • the network management device 13 may be a core network device in a wireless communication system, for example, the network management device 13 may be a mobility management entity (Mobility Management Entity) in an evolved packet core network (Evolved Packet Core, EPC). MME).
  • the network management device may also be other core network devices, such as a serving gateway (Serving GateWay, SGW), a public data network gateway (Public Data Network GateWay, PGW), a policy and charging rule functional unit (Policy and Charging Rules) Function, PCRF) or home subscriber server (Home Subscriber Server, HSS), etc.
  • the implementation form of the network management device 13 is not limited in this embodiment of the present disclosure.
  • the execution subjects involved in the embodiments of the present disclosure include, but are not limited to: User Equipment (UE, User Equipment) in a cellular mobile communication system, and a base station of cellular mobile communication.
  • UE User Equipment
  • UE User Equipment
  • the 5G protocol R16 introduces a variety of positioning technologies, which can realize the positioning of the UE.
  • the base station gNB needs to be configured to send PRS.
  • the PRS configuration method of the base station in R16 is mainly the following process: the LMF requests the gNB for DL-TDOA positioning assistance information, and the gNB sends a response message to the LMF after receiving the request.
  • the response information contains the PRS of the base station. configuration information, the base station sends the PRS according to the PRS configuration information.
  • the LMF When the LMF receives the PRS configuration information of the base station, it sends the positioning assistance information (LPP Provide Assistance Data) to the UE.
  • the positioning assistance information includes the PRS configuration information, which can be sent to the UE through the LTE Positioning Protocol (LPP) message. send.
  • the LMF may send the PRS configuration information of the base station to the UE. Or the LMF sends the positioning assistance information to the base station, and the base station sends the PRS configuration to the UE in a broadcast manner through a system message.
  • the PRS configuration in R16 all UEs in each cell use a set of PRS configurations, that is, the PRS configuration in R16 is cell specific.
  • the PRS configuration is changed, the PRS configuration of all UEs in the cell when positioning is changed. In view of this, it is necessary to send the corresponding PRS configuration separately only for the UE that cannot meet the requirements based on the cell PRS positioning, that is, to provide the UE with PRS in a differentiated manner.
  • FIG. 2 is a schematic flowchart of a positioning reference signal configuration method according to an exemplary embodiment. As shown in FIG. 2 , the positioning reference signal configuration method according to an embodiment of the present disclosure includes the following processing steps:
  • Step 201 when the LMF determines that the cell-specific PRS configuration used for UE positioning does not meet the positioning requirement of the UE, the LMF determines the UE-specific PRS configuration for the UE.
  • the LMF after the LMF receives the positioning request for the UE, if the current cell-specific (cell-specific) PRS configuration cannot meet the positioning requirements of the UE, the UE-specific (UE-specific) PRS configuration is configured for the UE. Specifically, after receiving the positioning request for the UE, the LMF evaluates whether the current cell-specific PRS configuration meets the UE positioning requirements, and if not, the LMF sends a positioning protocol (NR Positioning Protocol A, NRPPa) message to the base station (gNB), The NRPPa message includes the UE-specific PRS configuration determined for the UE.
  • NR Positioning Protocol A NR Positioning Protocol A
  • the LMF receives a positioning request message for the UE, and determines based on the positioning request message that the cell-specific PRS configuration of the UE does not meet the positioning requirement of the UE. As an implementation manner, the LMF may determine the indication information that the cell-specific PRS configuration does not meet the UE positioning requirements according to the positioning type and positioning quality of service (Quality for Service, QoS) requirements contained in the positioning request information.
  • QoS positioning quality of service
  • Step 202 Send the determined UE-specific PRS configuration.
  • the UE-specific PRS configuration is sent to the UE by the LMF via an LPP message.
  • the LPP message sent by the LMF to the UE includes positioning assistance information, and the positioning assistance information includes the UE-specific PRS configuration.
  • the LMF determines the UEs that cannot meet the positioning requirements based on the cell-specific PRS configuration, and sends the determined UE identifiers that cannot meet the positioning requirements to the base station, and the base station sends the UE-specific PRS configurations to the determined UEs based on these UE identifiers. send.
  • the LMF and the base station pre-determine the UE-specific PRS configuration, and the UE-specific PRS configuration is pre-configured in the base station; when the LMF determines that the cell-specific PRS configuration of the UE does not meet the positioning requirements of the UE, it sends an enable message to the base station.
  • the indication information of the UE-specific PRS configuration and the UE identification information that cannot meet the positioning requirement based on the cell-specific PRS configuration the base station enables the UE-specific PRS configuration based on the indication information, and sends the UE-specific PRS configuration to the determined need.
  • a UE with a PRS configuration sends the UE-specific PRS configuration. That is to say, in the embodiment of the present disclosure, the base station that receives the instruction to send the UE-specific PRS configuration needs to send the UE identifier of the UE-specific PRS configuration as required by the LMF notification based on the LMF instruction or the sent UE-specific PRS configuration. , send the UE-specific PRS configuration to these UEs, and at the same time, the base station also needs to broadcast the cell-specific PRS configuration in the cell.
  • the LMF may also directly send the UE-specific PRS configuration parameters determined for the UE to the base station, and the base station sends the UE-specific PRS configuration to the corresponding UE by sending the UE identifier of the UE-specific PRS configuration as required.
  • the configuration parameter of the UE-specific PRS includes at least one of the following information: a transmission period of the UE-specific PRS, a start time of transmission of the UE-specific PRS, and a transmission beam of the UE-specific PRS.
  • the UE-specific PRS needs to be sent to the base station.
  • the UEs to which the UE-specific PRS configuration is applicable are all UEs determined by the LMF that cannot meet the positioning requirements based on the cell-specific PRS configuration.
  • the LMF notifies the base station of the determined identity of the UE, and the base station informs the UE of the UE.
  • a specific PRS configuration is sent to these UEs. If the UE-specific PRS configuration is directly sent to these UEs, it is not necessary to send the identification information of the UE to which the UE-specific PRS configuration applies to the base station.
  • the base station may send a downlink RRC message to the UE corresponding to the identity information, where the RRC message carries the UE-specific PRS configuration resource information.
  • the UE obtains the information of the UE-specific PRS configuration by receiving the RRC message, so as to receive the UE-specific PRS sent by the base station.
  • the UE when the UE receives the UE-specific PRS configuration information from the RRC message, it ignores the cell-specific PRS configuration sent by the base station through the system message, that is, it no longer needs to receive PRS according to the cell-specific PRS configuration broadcast by the base station.
  • the UE receives the UE-specific PRS configuration from the LPP message sent by the LMF, and receives the PRS from the base station based on the UE-specific PRS configuration
  • the cell-specific PRS configuration sent by the base station through the system message is also ignored, that is, the cell-specific PRS configuration broadcast by the base station is no longer required.
  • PRS configuration receives PRS.
  • FIG. 3 is a schematic flowchart of a method for configuring a positioning reference signal according to an exemplary embodiment. As shown in FIG. 3 , the method for configuring a positioning reference signal according to an embodiment of the present disclosure includes the following processing steps:
  • Step 301 The UE receives a downlink message that is sent by a network device and carries a UE-specific PRS configuration.
  • the base station receives the enabling indication information of the UE-specific PRS configuration sent by the LMF, or receives the specific parameters of the UE-specific PRS configuration sent by the LMF, and the identification information of the UE to which the UE-specific PRS configuration is applicable, and can send the downlink to the UE corresponding to the identification information.
  • An RRC message where the RRC message carries resource information of the UE-specific PRS configuration, to instruct the UE corresponding to the identification information to monitor the UE-specific PRS configuration.
  • the UE determines whether it needs to monitor the UE-specific PRS sent by the base station by monitoring the downlink control message such as the RRC message sent by the base station.
  • the UE directly receives the UE-specific PRS configuration sent by the LMF through the LPP message.
  • the UE determines that the UE receives the UE-specific PRS configuration based on the RRC message sent by the base station or the positioning assistance information carried in the LPP message sent by the LMF, the cell-specific PRS configuration sent by the network device through the system message is ignored.
  • the cell-specific PRS sent by the network device is still received based on the cell-specific PRS configuration.
  • the UE-specific PRS configuration is completely shielded for this part of the UE, and does not affect its communication according to the normal communication process.
  • Step 302 Receive a UE-specific PRS based on the UE-specific PRS configuration, and perform positioning based on the UE-specific PRS.
  • the UE-specific PRS configuration in the downlink message is obtained by parsing the downlink message, and the UE-specific PRS sent by the base station or the LMF is received based on the UE-specific PRS configuration.
  • the base station may send a downlink RRC message to the UE corresponding to the identification information, where the RRC message carries the resources of the UE-specific PRS configuration information.
  • the UE obtains the information of the UE-specific PRS configuration by receiving the RRC message, so as to receive the UE-specific PRS sent by the base station.
  • the UE After the UE receives the UE-specific PRS configuration information from the RRC message, it ignores the cell-specific PRS configuration sent by the base station through the system message, that is, it no longer needs to receive PRS according to the cell-specific PRS configuration broadcast by the base station.
  • the UE receives the UE-specific PRS configuration from the LPP message sent by the LMF, it receives the PRS from the base station based on the UE-specific PRS configuration, and also ignores the cell-specific PRS configuration sent by the base station through the system message.
  • a specific PRS configuration receives PRS.
  • the UE-specific PRS configuration includes at least one of the following information: a transmission period of the UE-specific PRS, a transmission start time of the UE-specific PRS, and a transmission beam of the UE-specific PRS.
  • the UE receives the UE-specific PRS sent by the base station or the LMF according to the UE-specific PRS configuration, and completes positioning measurement based on the UE-specific PRS, thereby enabling precise positioning of the UE.
  • the positioning reference signal configuration method shown in FIG. 3 is a positioning reference signal configuration method completely corresponding to the positioning reference signal configuration method shown in FIG. 2
  • the positioning reference signal configuration method shown in FIG. 3 is It is implemented based on the positioning reference signal configuration method shown in FIG. 2 , and the two can also be combined to realize the technical solution of the new positioning reference signal configuration method.
  • the UE-specific PRS configuration is configured for the user equipment with high positioning requirements, so that the network side sends the UE-specific PRS to this part of the UE, so that the UE can Based on the UE-specific PRS, more accurate and faster positioning of the UE is achieved.
  • the embodiments of the present disclosure provide differentiated PRS configurations for UEs with different positioning requirements, and the UEs monitor cell-specific PRS configurations or UE-specific PRS configurations according to network instructions, thereby meeting different positioning requirements of UEs.
  • the embodiments of the present disclosure also introduce a UE-specific PRS configuration, that is, different PRS configurations can be configured for different UEs according to the positioning requirements of the UE. Therefore, at a certain moment, the gNB/TRP can send PRS according to the UE-specific PRS configuration in addition to sending the PRS according to the cell-specific PRS configuration.
  • FIG. 4 is a schematic flowchart of a positioning reference signal configuration method according to an exemplary embodiment. As shown in FIG. 4 , the positioning reference signal configuration method in this example includes the following processing steps:
  • Step 401 the LMF receives a positioning request message for UE1.
  • the LMF determines that the positioning requirement of UE1 is an emergency service, which requires low-latency, high-precision positioning.
  • the LMF evaluates that the cell-specific PRS does not meet the positioning requirement of UE1.
  • Step 402 the LMF sends a NRPPa message to the gNB/TRP.
  • the NRPPa message carries the UE-specific PRS configuration.
  • the LMF sends the UE-specific PRS configuration to the gNB/transmission reception point (Transmission Reception Point, TRP) participating in this UE1 positioning through the NRPPa message.
  • TRP Transmission Reception Point
  • Step 403 the gNB/TRP sends a NRPPa message to the LMF to confirm that the UE-specific PRS configuration is successfully or failed. In the event of failure, the LMF re-sends the UE-specific PRS configuration to the gNB/TRP.
  • the gNB/TRP after receiving the NRPPa message sent by the LMF, not only sends the cell-specific PRS, but also sends the UE-specific PRS configuration to UE1 that cannot meet the positioning requirements.
  • Step 404 the gNB/TRP sends an RRC message to UE1.
  • the gNB/TRP After receiving the UE-specific PRS configuration sent by the LMF, the gNB/TRP sends a downlink RRC message to UE1; the RRC message carries the identity information of UE1 and the resource information of the UE-specific PRS configuration.
  • Step 405 the gNB/TRP sends UE-specific PRS to UE1.
  • the UE1 determines that it needs to monitor the UE-specific PRS sent by the gNB/TRP by monitoring the downlink RRC message sent by the gNB/TRP.
  • UE1 receives the UE-specific PRS sent by the gNB/TRP based on the resource information of the UE-specific PRS configuration in the RRC message, and completes the positioning measurement; otherwise, it receives the cell-specific PRS sent by the base station according to the cell-specific PRS configuration in the gNB/TRP broadcast message. Complete the positioning measurement.
  • UE1 After UE1 receives the UE-specific PRS configuration, it will ignore the cell-specific PRS configuration broadcast by the gNB/TRP.
  • FIG. 5 is a schematic flowchart of a positioning reference signal configuration method according to an exemplary embodiment. As shown in FIG. 5 , the positioning reference signal configuration method in this example includes the following processing steps:
  • Step 501 the LMF receives a positioning request message for UE1.
  • the LMF determines that the positioning requirement of UE1 is an emergency service, which requires low-latency, high-precision positioning.
  • the LMF evaluates that the cell-specific PRS does not meet the positioning requirement of UE1.
  • Step 502 the LMF sends an LPP message to UE1.
  • the LPP message carries positioning assistance information (LPP Provide Assistance Data), and the positioning assistance information includes UE-specific PRS configuration information and identification information of UE1.
  • LPP Provide Assistance Data positioning assistance information
  • the positioning assistance information includes UE-specific PRS configuration information and identification information of UE1.
  • Step 503 UE1 receives the gNB/TRP and sends the UE-specific PRS according to the UE-specific PRS configuration information.
  • UE1 receives the UE-specific PRS configuration through the positioning assistance information sent by the LMF, and receives the UE-specific PRS sent by the gNB/TRP according to the received UE-specific PRS configuration to complete the positioning measurement.
  • UE1 After UE1 receives the UE-specific PRS configuration, it will ignore the cell-specific PRS configuration broadcast by the gNB/TRP.
  • FIG. 6 is a schematic flowchart of a positioning reference signal configuration method according to an exemplary embodiment. As shown in FIG. 6 , the positioning reference signal configuration method in this example includes the following processing steps:
  • Step 601 the LMF receives a positioning request message for UE1.
  • the LMF determines that the positioning requirement of UE1 is an emergency service, which requires low-latency, high-precision positioning.
  • the LMF evaluates that the cell-specific PRS does not meet the positioning requirement of UE1.
  • Step 602 the LMF sends a NRPPa message to the gNB/TRP.
  • the NRPPa message carries indication information, which instructs the gNB/TRP to enable the UE-specific PRS configuration agreed in advance by the LMF and the gNB, and includes the identification information of the UE1.
  • Step 603 the gNB/TRP sends an RRC message to UE1.
  • the gNB/TRP After receiving the indication information sent by the LMF, the gNB/TRP sends the corresponding UE-specific PRS configuration to UE1 according to the indication of the indication information. Specifically, the gNB/TRP sends a downlink RRC message to the UE1, where the RRC message carries the identification information of the UE1 and the resource information of the UE-specific PRS configuration.
  • Step 604 the gNB/TRP sends UE-specific PRS to UE1.
  • the UE1 determines that it needs to monitor the UE-specific PRS sent by the gNB/TRP by monitoring the downlink RRC message sent by the gNB/TRP.
  • UE1 receives the UE-specific PRS sent by the gNB/TRP based on the resource information of the UE-specific PRS configuration in the RRC message, and completes the positioning measurement; otherwise, it receives the cell-specific PRS sent by the base station according to the cell-specific PRS configuration in the gNB/TRP broadcast message. Complete the positioning measurement.
  • UE1 After UE1 receives the UE-specific PRS configuration, it will ignore the cell-specific PRS configuration broadcast by the gNB/TRP.
  • FIG. 7 is a schematic diagram showing the composition and structure of an apparatus for configuring a positioning reference signal according to an exemplary embodiment.
  • the apparatus for configuring a positioning reference signal according to an embodiment of the present disclosure includes:
  • the first determining unit 41 is configured to determine whether the cell-specific positioning reference signal PRS configuration for the user equipment UE meets the positioning requirement of the UE, and triggers the second determining unit 42 when the positioning requirement of the UE is not met;
  • a second determining unit 42 configured to determine a UE-specific PRS configuration for the UE
  • the sending unit 43 is configured to send the cell-specific PRS configuration and at least one set of the determined UE-specific PRS configuration.
  • the first determining unit 42 is further configured to:
  • the cell-specific PRS configuration of the UE does not meet the positioning requirement of the UE.
  • the positioning reference signal configuration apparatus further includes:
  • a configuration unit (not shown in FIG. 7 ), configured to pre-determine a UE-specific PRS configuration with the base station, and pre-configure the UE-specific PRS configuration in the base station;
  • the first determining unit 41 is further configured to trigger the sending unit 43 to send the instruction information for enabling the UE-specific PRS configuration to the base station when the cell-specific PRS configuration of the UE does not meet the positioning requirement of the UE, so that the UE-specific PRS configuration is enabled.
  • the base station enables the UE-specific PRS configuration based on the indication information.
  • the first determining unit 41 is further configured to trigger the sending unit 43 to send the UE-specific PRS to the base station when it is determined that the cell-specific PRS configuration of the UE does not meet the positioning requirement of the UE. Configuration parameters.
  • the configuration parameter of the UE-specific PRS includes at least one of the following information: a transmission period of the UE-specific PRS, a transmission start time of the UE-specific PRS, and a transmission beam of the UE-specific PRS.
  • the sending unit 43 is further configured to:
  • the base station sends the downlink radio resource link RRC to the UE corresponding to the identification information based on the identification information of the UE to which the UE-specific PRS configuration is applicable message
  • the RRC message carries the UE-specific PRS configuration resource information.
  • the sending unit 43 is further configured to:
  • the positioning assistance information carries the UE-specific PRS configuration, so that the UE receives the UE-specific PRS based on the UE-specific PRS configuration.
  • the first determination unit 41, the second determination unit 42, the sending unit 43, the configuration unit, etc. may be controlled by one or more central processing units (CPU, Central Processing Unit), graphics processing unit (GPU, Graphics) Processing Unit), baseband processor (BP, base band processor), Application Specific Integrated Circuit (ASIC, Application Specific Integrated Circuit), DSP, Programmable Logic Device (PLD, Programmable Logic Device), Complex Programmable Logic Device (CPLD, Complex Programmable Logic Device), Field-Programmable Gate Array (FPGA, Field-Programmable Gate Array), general-purpose processor, controller, microcontroller (MCU, Micro Controller Unit), microprocessor (Microprocessor), or other electronic components It can also be implemented in combination with one or more radio frequency (RF, radio frequency) antennas, and is used to implement the foregoing user direct connection communication method.
  • CPU Central Processing Unit
  • GPU Graphics
  • BP base band processor
  • ASIC Application Specific Integrated Circuit
  • DSP Programmable Logic Device
  • PLD Programmable Logic Device
  • CPLD
  • FIG. 8 is a schematic diagram showing the composition and structure of an apparatus for configuring a positioning reference signal according to an exemplary embodiment.
  • the apparatus for configuring a positioning reference signal according to an embodiment of the present disclosure includes:
  • a receiving unit 51 configured to receive a downlink message carrying a UE-specific PRS configuration sent by a network device, and receive a UE-specific PRS based on the UE-specific PRS configuration;
  • the positioning unit 52 is configured to perform positioning based on the UE-specific PRS.
  • the receiving unit 51 is further configured to:
  • the cell-specific PRS configuration sent by the network device through the system message is ignored.
  • the receiving unit 51 is further configured to:
  • the downlink positioning assistance information carries resource information bearing the UE-specific PRS configuration; and determine the UE-specific PRS configuration based on the positioning assistance information.
  • the receiving unit 51 is further configured to:
  • the cell-specific PRS sent by the base station is received based on the cell-specific PRS configuration.
  • the UE-specific PRS configuration includes at least one of the following information:
  • the transmission period of the UE-specific PRS, the transmission start time of the UE-specific PRS, and the transmission beam of the UE-specific PRS is not limited.
  • the receiving unit 51, the positioning unit 52, etc. may be controlled by one or more central processing units (CPU, Central Processing Unit), graphics processing unit (GPU, Graphics Processing Unit), baseband processor (BP, base frequency band processor), Application Specific Integrated Circuit (ASIC, Application Specific Integrated Circuit), DSP, Programmable Logic Device (PLD, Programmable Logic Device), Complex Programmable Logic Device (CPLD, Complex Programmable Logic Device), Field Programmable Gate Array (FPGA, Field-Programmable Gate Array), general-purpose processors, controllers, microcontrollers (MCU, Micro Controller Unit), microprocessors (Microprocessor), or other electronic components to achieve, can also be combined with one or more radio frequency (RF, radio frequency) antenna implementation for implementing the aforementioned user direct connection communication method.
  • CPU Central Processing Unit
  • GPU Graphics Processing Unit
  • BP base frequency band processor
  • ASIC Application Specific Integrated Circuit
  • DSP Programmable Logic Device
  • PLD Programmable Logic Device
  • CPLD Complex Programmable Logic Device
  • the positioning reference signal configuration device shown in FIG. 8 can cooperate with the positioning reference signal configuration device shown in FIG. 7 to form a positioning reference signal configuration system. Based on the positioning reference signal configuration system, the UE can be updated. accurate positioning.
  • the positioning reference signal configuration apparatus configures UE-specific PRS configuration for user equipment with high positioning requirements according to different PRS configuration requirements of different user equipments, so that this part of UEs can report to the network side according to the UE-specific PRS configuration.
  • the UE-specific PRS is sent, so that the network side can achieve more precise positioning for the UE based on the UE-specific PRS.
  • the embodiments of the present disclosure provide differentiated PRS configurations for UEs with different positioning requirements, and the UEs monitor cell-specific PRS configurations or UE-specific PRS configurations according to their own requirements, thereby meeting different positioning requirements of UEs.
  • FIG. 9 is a block diagram of a user equipment 6000 according to an exemplary embodiment.
  • user equipment 6000 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.
  • user equipment 6000 may include one or more of the following components: processing component 6002, memory 6004, power supply component 6006, multimedia component 6008, audio component 6010, input/output (I/O) interface 6012, sensor component 6014 , and the communication component 6016.
  • the processing component 6002 generally controls the overall operations of the user equipment 6000, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 6002 can include one or more processors 6020 to execute instructions to perform all or part of the steps of the methods described above.
  • processing component 6002 may include one or more modules that facilitate interaction between processing component 6002 and other components.
  • processing component 6002 may include a multimedia module to facilitate interaction between multimedia component 6008 and processing component 6002.
  • Memory 6004 is configured to store various types of data to support operation at device 6000 . Examples of such data include instructions for any application or method operating on the user device 6000, contact data, phonebook data, messages, pictures, videos, and the like. Memory 6004 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • Power supply component 6006 provides power to various components of user equipment 6000.
  • Power components 6006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to user equipment 6000.
  • Multimedia component 6008 includes a screen that provides an output interface between user equipment 6000 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. A touch sensor can sense not only the boundaries of a touch or swipe action, but also the duration and pressure associated with the touch or swipe action.
  • the multimedia component 6008 includes a front-facing camera and/or a rear-facing camera. When the device 6000 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.
  • Audio component 6010 is configured to output and/or input audio signals.
  • the audio component 6010 includes a microphone (MIC) that is configured to receive external audio signals when the user device 6000 is in operating modes, such as calling mode, recording mode, and speech recognition mode.
  • the received audio signal may be further stored in memory 6004 or transmitted via communication component 6016.
  • audio component 6010 also includes a speaker for outputting audio signals.
  • the I/O interface 6012 provides an interface between the processing component 6002 and a peripheral interface module, which may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.
  • Sensor component 6014 includes one or more sensors for providing user equipment 6000 with status assessments of various aspects.
  • the sensor component 6014 can detect the open/closed state of the device 6000, the relative positioning of components, such as the display and keypad of the user device 6000, the sensor component 6014 can also detect the position of the user device 6000 or a component of the user device 6000 changes, the presence or absence of user contact with the user equipment 6000, the orientation or acceleration/deceleration of the user equipment 6000 and the temperature change of the user equipment 6000.
  • Sensor assembly 6014 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 6014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 6014 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 6016 is configured to facilitate wired or wireless communications between user device 6000 and other devices.
  • the user equipment 6000 can access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof.
  • the communication component 6016 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 6016 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • user equipment 6000 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A programming gate array (FPGA), a controller, a microcontroller, a microprocessor or other electronic components are implemented for performing the above positioning reference signal configuration method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A programming gate array
  • controller a controller
  • microcontroller a microprocessor or other electronic components
  • a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 6004 including instructions, and the above-mentioned instructions can be executed by the processor 6020 of the user equipment 6000 to complete the above-mentioned positioning reference signal configuration method .
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

Abstract

本公开是关于定位参考信号配置方法及装置、用户设备、存储介质。定位参考信号配置方法包括：网络设备确定用于用户设备UE定位的小区特定定位参考信号PRS配置未满足所述UE的定位需求时，为所述UE确定UE特定PRS配置，发送所确定的UE特定PRS配置。本公开实施例根据不同用户设备对PRS的配置要求不同，为定位要求高的用户设备配置UE特定PRS配置，使这部分UE能够根据UE特定的PRS配置，向网络侧发送UE特定的PRS，以便网络侧基于UE特定的PRS，对UE实现更精确的定位。本公开实施例为不同的定位需求的UE提供差异化的PRS配置，UE根据自身需求监听小区特定PRS配置或UE特定PRS配置，从而满足了UE的不同定位需求。

Description

定位参考信号配置方法及装置、用户设备、存储介质 技术领域
本公开实施例涉及定位参考信号(Positioning Reference Signaling，PRS)配置技术，尤其涉及一种定位参考信号配置方法及装置、用户设备、存储介质。
背景技术
目前小区在某一时刻只支持一套PRS配置，小区中所有的用户使用相同的PRS配置。但是考虑到不同用户的定位需求，定位类型可能不同，因此，不同用户对PRS的配置要求不同，从而以满足不同的定位精度，时延等不同的定位需求。
发明内容
有鉴于此，本公开实施例提供了一种定位参考信号配置方法及装置、用户设备、存储介质。
根据本公开实施例的第一方面，提供一种定位参考信号配置方法，包括：
定位管理功能(Location Management Function，LMF)确定用于用户设备(User Equipment，UE)定位的小区特定定位参考信号PRS配置未满足所述UE的定位需求时，为所述UE确定UE特定PRS配置，发送所确定的所述UE特定PRS配置。
在一个实施例中，所述LMF确定用于UE定位的小区特定PRS配置未满足所述UE的定位需求，包括：
所述LMF接收对所述UE的定位请求消息，基于所述定位请求消息 确定用于所述UE定位的小区特定PRS配置未满足所述UE定位需求。
在一个实施例中，所述方法还包括：
所述LMF与所述基站预先确定UE特定PRS配置，在所述基站中预配置所述UE特定PRS配置；
响应于所述LMF确定所述UE的小区特定PRS配置未满足所述UE的定位需求，向所述基站发送启用所述UE特定PRS配置的指示信息，以使所述基站基于所述指示信息发送小区特定PRS配置和所述UE特定PRS配置。
在一个实施例中，所述方法还包括：
所述LMF确定UE的小区特定PRS配置未满足所述UE的定位需求时，向所述基站发送所述UE特定PRS的配置参数，以使基站发送小区特定PRS配置和所述UE特定PRS配置。
在一个实施例中，所述UE特定PRS的配置参数包括以下信息至少之一：
所述UE特定PRS的发送周期、所述UE特定PRS的发送起始时间、所述UE特定PRS的发送波束。
在一个实施例中，所述方法还包括：
所述LMF向所述基站发送所述UE特定PRS配置所适用的UE的标识信息，以使所述基站基于所述UE特定PRS配置所适用的UE的标识信息，向所述标识信息对应的UE发送下行无线资源链接(Radio Resource Control，RRC)消息，所述RRC消息中携带有所述UE特定的PRS配置资源信息。
在一个实施例中，所述方法还包括：
所述LMF向所述UE发送定位辅助信息，所述定位辅助信息中携带有所述UE特定PRS配置，使所述UE基于所述UE特定PRS配置接收 所述UE特定PRS。
根据本公开实施例的第二方面，提供一种定位参考信号配置方法，包括：
UE接收网络设备发送的携带有所述UE特定PRS配置的下行消息，基于所述UE特定PRS配置接收所述UE的特定PRS，基于所述UE特定PRS进行定位。
在一个实施例中，所述方法还包括：
所述UE基于基站发送的RRC消息或LMF发送的定位辅助信息，确定所述UE接收到所述UE特定PRS配置时，忽略所述网络设备通过系统消息发送的小区特定PRS配置。
在一个实施例中，所述方法还包括：
所述UE接收基站发送的下行控制消息，所述下行控制消息中携带承载UE特定PRS配置的资源信息；基于所述下行控制消息确定UE特定PRS配置；或者
所述UE接收LMF发送的定位辅助信息，所述下行定位辅助信息中携带承载UE特定PRS配置的资源信息；基于所述定位辅助信息确定UE特定PRS配置。
在一个实施例中，所述方法还包括：
所述UE接收网络设备发送的小区特定PRS配置，基于小区特定PRS配置发送小区特定PRS。
在一个实施例中，所述UE特定PRS配置包括以下信息至少之一：
所述UE特定PRS的发送周期、所述UE特定PRS的发送起始时间、所述UE特定PRS的发送波束。
根据本公开实施例的第三方面，提供一种定位参考信号配置装置，包括：
第一确定单元，配置为确定用于用户设备UE定位的小区特定定位参考信号PRS配置是否满足所述UE的定位需求，未满足所述UE的定位需求时触发第二确定单元；
第二确定单元，配置为为所述UE确定UE特定PRS配置；
发送单元，配置为发送所确定的所述UE特定PRS配置。
在一个实施例中，所述第一确定单元，还配置为：
基于对所述UE的定位请求消息，确定用于所述UE定位的小区特定PRS配置未满足所述UE定位需求。
在一个实施例中，所述装置还包括：
配置单元，配置为与所述基站预先确定UE特定PRS配置，在所述基站中预配置所述UE特定PRS配置；
所述第一确定单元还配置为响应于确定所述UE的小区特定PRS配置未满足所述UE的定位需求，触发所述发送单元向所述基站发送启用所述UE特定PRS配置的指示信息，以使所述基站基于所述指示信息发送小区特定PRS配置和所述UE特定PRS配置。
在一个实施例中，所述第一确定单元还配置为确定UE的小区特定PRS配置未满足所述UE的定位需求时，触发所述发送单元向所述基站发送所述UE特定PRS的配置参数，以使所述基站发送小区特定PRS配置和所述UE特定PRS配置。
在一个实施例中，所述UE特定PRS的配置参数包括以下信息至少之一：
所述UE特定PRS的发送周期、所述UE特定PRS的发送起始时间、所述UE特定PRS的发送波束。
在一个实施例中，所述发送单元，还配置为：
向所述基站发送所述UE特定PRS配置所适用的UE的标识信息，以 使所述基站基于所述UE特定PRS配置所适用的UE的标识信息，向所述标识信息对应的UE发送下行无线资源链接RRC消息，所述RRC消息中携带有所述UE特定的PRS配置资源信息。
在一个实施例中，所述发送单元，还配置为：
向所述UE发送定位辅助信息，所述定位辅助信息中携带有UE特定PRS配置，使所述UE基于所述UE特定PRS配置接收UE特定PRS。
根据本公开实施例的第四方面，提供一种定位参考信号配置装置，包括：
接收单元，配置为接收网络设备发送的携带有UE特定PRS配置的下行消息，基于所述UE特定PRS配置接收UE特定PRS；
定位单元，配置为基于所述UE特定PRS进行定位。
在一个实施例中，所述接收单元，还配置为：
基于基站发送的RRC消息或LMF发送的定位辅助信息，确定所述UE接收所述UE特定PRS配置时，忽略所述网络设备通过系统消息发送的小区特定PRS配置。
在一个实施例中，所述接收单元，还配置为：
接收基站发送的下行控制消息，所述下行控制消息中携带承载UE特定PRS配置的资源信息；基于所述下行控制消息确定UE特定PRS配置；或者
接收LMF发送的定位辅助信息，所述下行定位辅助信息中携带承载UE特定PRS配置的资源信息；基于所述定位辅助信息确定UE特定PRS配置。
在一个实施例中，所述接收单元，还配置为：
基于小区特定PRS配置接收基站发送的小区特定PRS。
在一个实施例中，所述UE特定PRS配置包括以下信息至少之一：
所述UE特定PRS的发送周期、所述UE特定PRS的发送起始时间、所述UE特定PRS的发送波束。
根据本公开实施例的第五方面，提供一种用户设备，包括处理器、收发器、存储器及存储在存储器上并能够由所述处理器运行的可执行程序，所述处理器运行所述可执行程序时执行所述的定位参考信号配置方法的步骤。
根据本公开实施例的第六方面，提供一种存储介质，其上存储由可执行程序，所述可执行程序被处理器执行时实现所述定位参考信号配置方法的步骤。
本公开实施例的定位参考信号配置方法及装置、用户设备、存储介质，根据不同用户设备对PRS的配置要求不同，为定位要求高的用户设备配置UE特定PRS配置，使这部分UE能够根据UE特定的PRS配置，向网络侧发送UE特定的PRS，以便网络侧基于UE特定的PRS，对UE实现更精确的定位。本公开实施例为不同的定位需求的UE提供差异化的PRS配置，UE根据自身需求监听小区特定PRS配置或UE特定PRS配置，从而满足了UE的不同定位需求。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开实施例。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明实施例，并与说明书一起用于解释本发明实施例的原理。
图1是根据一示例性实施例示出的无线通信系统的结构示意图；
图2是根据一示例性实施例示出的定位参考信号配置方法的流程示意图；
图3是根据一示例性实施例示出的定位参考信号配置方法的流程示意 图；
图4是根据一示例性实施例示出的定位参考信号配置方法的流程示意图；
图5是根据一示例性实施例示出的定位参考信号配置方法的流程示意图；
图6是根据一示例性实施例示出的定位参考信号配置方法的流程示意图；
图7是根据一示例性实施例示出的定位参考信号配置装置的组成结构示意图；
图8是根据一示例性实施例示出的定位参考信号配置装置的组成结构示意图；
图9是根据一示例性实施例示出的一种用户设备的组成结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明实施例相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类 型的信息彼此区分开。例如，在不脱离本公开实施例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
请参考图1，其示出了本公开实施例提供的一种无线通信系统的结构示意图。如图1所示，无线通信系统是基于蜂窝移动通信技术的通信系统，该无线通信系统可以包括：若干个终端11以及若干个基站12。
其中，终端11可以是指向用户提供语音和/或数据连通性的设备。终端11可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，终端11可以是物联网终端，如传感器设备、移动电话(或称为“蜂窝”电话)和具有物联网终端的计算机，例如，可以是固定式、便携式、袖珍式、手持式、计算机内置的或者车载的装置。例如，站(Station，STA)、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、远程终端(remote terminal)、接入终端(access terminal)、用户装置(user terminal)、用户代理(user agent)、用户设备(user device)、或用户终端(user equipment，UE)。或者，终端11也可以是无人飞行器的设备。或者，终端11也可以是车载设备，比如，可以是具有无线通信功能的行车电脑，或者是外接行车电脑的无线通信设备。或者，终端11也可以是路边设备，比如，可以是具有无线通信功能的路灯、信号灯或者其它路边设备等。
基站12可以是无线通信系统中的网络侧设备。其中，该无线通信系统可以是第四代移动通信技术(the 4th generation mobile communication，4G)系统，又称长期演进(Long Term Evolution，LTE)系统；或者，该无线通信系统也可以是5G系统，又称新空口(new radio，NR)系统或5G NR系统。或者，该无线通信系统也可以是5G系统的再下一代系统。其中，5G 系统中的接入网可以称为NG-RAN(New Generation-Radio Access Network，新一代无线接入网)。或者，MTC系统。
其中，基站12可以是4G系统中采用的演进型基站(eNB)。或者，基站12也可以是5G系统中采用集中分布式架构的基站(gNB)。当基站12采用集中分布式架构时，通常包括集中单元(central unit，CU)和至少两个分布单元(distributed unit，DU)。集中单元中设置有分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层、无线链路层控制协议(Radio Link Control，RLC)层、媒体访问控制(Media Access Control，MAC)层的协议栈；分布单元中设置有物理(Physical，PHY)层协议栈，本公开实施例对基站12的具体实现方式不加以限定。
基站12和终端11之间可以通过无线空口建立无线连接。在不同的实施方式中，该无线空口是基于第四代移动通信网络技术(4G)标准的无线空口；或者，该无线空口是基于第五代移动通信网络技术(5G)标准的无线空口，比如该无线空口是新空口；或者，该无线空口也可以是基于5G的更下一代移动通信网络技术标准的无线空口。
在一些实施例中，终端11之间还可以建立E2E(End to End，端到端)连接。比如车联网通信(vehicle to everything，V2X)中的V2V(vehicle to vehicle，车对车)通信、V2I(vehicle to Infrastructure，车对路边设备)通信和V2P(vehicle to pedestrian，车对人)通信等场景。
在一些实施例中，上述无线通信系统还可以包含网络管理设备13。
若干个基站12分别与网络管理设备13相连。其中，网络管理设备13可以是无线通信系统中的核心网设备，比如，该网络管理设备13可以是演进的数据分组核心网(Evolved Packet Core，EPC)中的移动性管理实体(Mobility Management Entity，MME)。或者，该网络管理设备也可以是其它的核心网设备，比如服务网关(Serving GateWay，SGW)、公用数据网网 关(Public Data Network GateWay，PGW)、策略与计费规则功能单元(Policy and Charging Rules Function，PCRF)或者归属签约用户服务器(Home Subscriber Server，HSS)等。对于网络管理设备13的实现形态，本公开实施例不做限定。
本公开实施例涉及的执行主体包括但不限于：蜂窝移动通信系统中的用户设备(UE，User Equipment)，以及蜂窝移动通信的基站等。
5G的协议R16中引入了多种定位技术，可以实现对UE的定位，对于其中一些定位技术，基站gNB需要配置发送PRS。以DL-TDOA为例，R16中基站的PRS配置方式主要为以下过程：LMF向gNB请求DL-TDOA定位辅助信息，gNB收到该请求后向LMF发送应答消息，该应答信息包含了基站的PRS配置信息，基站根据PRS配置信息发送PRS。
当LMF接收到基站的PRS配置信息后，向UE发送定位辅助信息(LPP Provide Assistance Data)，该定位辅助信息中包含PRS配置信息，具体可通LTE定位协议(LTE Positioning Protocol，LPP)消息向UE发送。LMF可以将基站的PRS配置信息发送给UE。或者LMF将定位辅助信息发给基站，基站通过系统消息将PRS配置以广播的方式发送给UE。R16中的PRS配置，每个小区中的所有UE使用一套PRS配置，即R16的PRS配置为cell specific。如果改变PRS配置，则小区中所有UE定位时的PRS配置均改变。针对于此，有必要仅针对基于小区PRS定位求满足不了需求的UE而单独发送相应的PRS配置，即对UE进行区分式的提供PRS。
图2是根据一示例性实施例示出的定位参考信号配置方法的流程示意图，如图2所示，本公开实施例的定位参考信号配置方法包括以下处理步骤：
步骤201，LMF确定用于UE定位的小区特定PRS配置未满足所述UE的定位需求时，为所述UE确定UE特定PRS配置。
在本公开实施例中，当LMF收到对UE的定位请求后，如果当前小区特定(cell specific)PRS配置不能满足UE的定位需求，则为UE配置UE特定(UE specific)PRS配置。具体地，LMF收到针对UE的定位请求后，评估当前小区特定的PRS配置是否满足UE定位需求，如果不满足，则LMF向基站(gNB)发送定位协议(NR Positioning Protocol A，NRPPa)消息，所述NRPPa消息中包含有为UE确定的UE特定的PRS配置。
LMF接收对所述UE的定位请求消息，基于所述定位请求消息确定所述UE的小区特定PRS配置未满足所述UE定位需求。作为一种实现方式，LMF可以根据定位请求信息中包含的定位类型，定位服务质量(Quality for Service，QoS)需求确定小区特定PRS配置未满足所述UE定位需求的指示信息。
步骤202，发送所确定的UE特定PRS配置。
在一个实施例中，由LMF通过LPP消息，将UE特定PRS配置发送给UE。具体地，LMF发送给UE的LPP消息中包含定位辅助信息，所述定位辅助信息中包含所述UE特定PRS配置。
或者，LMF确定出基于小区特定PRS配置不能满足定位需求的UE，将所确定的不能满足定位需求的UE标识向基站发送，由基站基于这些UE标识，将UE特定PRS配置向所确定的这些UE发送。具体地，LMF与基站预先确定UE特定PRS配置，在所述基站中预配置所述UE特定PRS配置；当LMF确定UE的小区特定PRS配置未满足UE的定位需求时，向所述基站发送启用所述UE特定PRS配置的指示信息以及基于小区特定PRS配置不能满足定位需求的UE标识信息，所述基站基于所述指示信息启用所述UE特定PRS配置，并向所确定需要发送所述UE特定PRS配置的UE发送所述UE特定PRS配置。也就是说，本公开实施例中，接收到发送UE特定PRS配置指示的基站，需要基于所述LMF指 示或发送的所述UE特定PRS配置，按LMF通知的需要发送UE特定PRS配置的UE标识，向这些UE发送UE特定PRS配置，同时，该基站还需要在小区内广播小区特定PRS配置。
本公开实施例中，LMF还可以直接将为UE确定的UE特定PRS配置参数向基站发送，由基站根据需要发送UE特定PRS配置的UE标识向相应的UE发送UE特定PRS配置。
本公开实施例中，所述UE特定PRS的配置参数包括以下信息至少之一：所述UE特定PRS的发送周期、所述UE特定PRS的发送起始时间、所述UE特定PRS的发送波束。
在本公开实施例中，LMF为未满足定位需求的UE确定完UE特定PRS配置后，当需要通过基站将UE特定PRS配置向这些UE发送时，还需要向所述基站发送所述UE特定PRS配置所适用的UE的标识信息。这里的所述UE特定PRS配置所适用的UE，是LMF所确定的基于小区特定PRS配置不能满足定位需求的所有UE，LMF将所确定的UE的标识向基站通知，而由基站将所述UE特定PRS配置向这些UE发送。如果直接将UE特定PRS配置向这些UE发送，则不必向所述基站发送所述UE特定PRS配置所适用的UE的标识信息。
作为一种示例，所述基站基于所述UE特定PRS配置所适用的UE的标识信息，可以向所述标识信息对应的UE发送下行RRC消息，所述RRC消息中携带有所述UE特定PRS配置的资源信息。UE通过接收所述RRC消息获取UE特定PRS配置的信息，从而接收基站发送的UE特定PRS。
并且当UE从RRC消息中接收到UE特定PRS配置信息后，忽略基站通过系统消息发送的小区特定PRS配置，即无需再根据基站所广播的小区特定PRS配置接收PRS。
另外，当UE从LMF发送的LPP消息接收到UE特定PRS配置后，基 于UE特定PRS配置从基站接收PRS同样忽略基站通过系统消息发送的小区特定PRS配置，即无需再根据基站所广播的小区特定PRS配置接收PRS。
图3是根据一示例性实施例示出的定位参考信号配置方法的流程示意图，如图3所示，本公开实施例的定位参考信号配置方法包括以下处理步骤：
步骤301，UE接收网络设备发送的携带有UE特定PRS配置的下行消息。
基站接收LMF发送的UE特定PRS配置的启用指示信息或接收LMF发送的UE特定PRS配置的具体参数，以及UE特定PRS配置所适用的UE的标识信息，可以向所述标识信息对应的UE发送下行RRC消息，所述RRC消息中携带有所述UE特定的PRS配置的资源信息，以指示所述标识信息对应的UE监听所述UE特定的PRS配置。UE通过监听基站发送的下行控制消息如RRC消息，来确定自身是否需要监听基站发送的UE特定的PRS。需要监听基站发送RRC消息的UE，基于RRC消息中的所述UE特定的PRS配置的资源信息，接收基站发送的UE特定的PRS，否则按照基站广播消息中的小区特定PRS配置接收基站发送的PRS。
或者，作为一种实现方式，UE直接通过LPP消息接收LMF发送的UE特定的PRS配置。
当UE基于基站发送的RRC消息或LMF发送的承载于LPP消息中的定位辅助信息，确定所述UE接收所述UE特定PRS配置时，忽略所述网络设备通过系统消息发送的小区特定PRS配置。
对于基于小区特定PRS配置能满足自身定位需求的UE，仍然基于小区特定PRS配置接收网络设备发送的小区特定PRS。对于这部分UE而言，UE特定的PRS配置对这部分UE而言是完全屏蔽的，不影响其按正常的通信流程进行通信。
步骤302，基于所述UE特定PRS配置接收UE特定PRS，基于所述UE特定PRS进行定位。
本公开实施例中，通过解析所述下行消息而获取下行消息中的UE特定PRS配置，基于UE特定PRS配置接收基站或LMF发送的UE特定PRS。
具体地，所述基站基于所述UE特定PRS配置所适用的UE的标识信息，可以向所述标识信息对应的UE发送下行RRC消息，所述RRC消息中携带有所述UE特定PRS配置的资源信息。UE通过接收所述RRC消息获取UE特定PRS配置的信息，从而接收基站发送的UE特定PRS。当UE从RRC消息中接收到UE特定的PRS配置信息后，忽略基站通过系统消息发送的小区特定PRS配置，即无需再根据基站所广播的小区特定PRS配置接收PRS。
另外，当UE从LMF发送的LPP消息接收到UE特定PRS配置后，基于UE特定PRS配置从基站接收PRS，同样忽略基站通过系统消息发送的小区特定PRS配置，即无需再根据基站所广播的小区特定PRS配置接收PRS。
本公开实施例中，UE特定PRS配置包括以下信息至少之一：所述UE特定PRS的发送周期、所述UE特定PRS的发送起始时间、所述UE特定PRS的发送波束。
UE按照UE特定PRS配置接收基站或LMF发送的UE特定PRS，基于UE特定PRS完成定位测量，从而能够实现对UE的精确定位。
本领域技术人员应当理解，图3所示的定位参考信号配置方法是与图2所示的定位参考信号配置方法是完全对应的定位参考信号配置方法，如3所示的定位参考信号配置方法是基于图2所示的定位参考信号配置方法而实现的，二者也可以结合而实现新的定位参考信号配置方法的技术方案。
本公开实施例的定位参考信号配置方法，根据不同用户设备对PRS的配置要求不同，为定位要求高的用户设备配置UE特定PRS配置，使网络侧向这部分UE发送UE特定的PRS，以便UE基于UE特定的PRS，对UE实现更精确和更快速的定位。本公开实施例为不同的定位需求的UE提供差异化的PRS配置，UE根据网络指示监听小区特定PRS配置或UE特定PRS配置，从而满足了UE的不同定位需求。
因为不同用户的定位需求，定位类型可能不同，因此，不同用户对PRS的配置要求不同，从而以满足不同的定位精度，时延等不同的定位需求。因此，除了小区特定的PRS配置以外，本公开实施例还引入UE特定的PRS配置，即根据UE的定位需求可以为不同的UE配置不同的PRS配置。从而，在某一时刻，gNB/TRP除了根据小区特定的PRS配置发送PRS，还可以根据UE特定的PRS配置发送PRS。
图4是根据一示例性实施例示出的定位参考信号配置方法的流程示意图，如图4所示，本示例的定位参考信号配置方法包括以下处理步骤：
步骤401，LMF接收针对UE1的定位请求消息。
LMF基于定位请求消息确定UE1的定位需求为紧急业务，需要低时延，高精度的定位，LMF评估小区特定PRS不满足UE1的定位要求。
步骤402，LMF向gNB/TRP发送NRPPa消息。
其中，所述NRPPa消息中承载有UE特定的PRS配置。LMF通过NRPPa消息向参与此次UE1定位的gNB/传输接收点(Transmission Reception Point，TRP)发送UE特定的PRS配置。
步骤403，gNB/TRP向LMF发送NRPPa消息，以确认接收到UE特定的PRS配置成功或失败。失败时LMF重新向gNB/TRP发送UE特定的PRS配置。
本示例中，gNB/TRP在接收到LMF发送的NRPPa消息后，除了发 送小区特定的PRS外，还向不能满足定位需求的UE1发送UE特定的PRS配置。
步骤404，gNB/TRP向UE1发送RRC消息。
gNB/TRP接收到LMF发送的UE特定的PRS配置后，向UE1发送下行RRC消息；所述RRC消息中携带有UE1的标识信息及所述UE特定PRS配置的资源信息。
步骤405，gNB/TRP向UE1发送UE特定PRS。
UE1通过监听gNB/TRP发送的下行RRC消息，确定自身需要监听gNB/TRP发送的UE特定PRS。UE1基于RRC消息中的所述UE特定PRS配置的资源信息，接收gNB/TRP发送的UE特定PRS，完成定位测量；否则按照gNB/TRP广播消息中的小区特定PRS配置接收基站发送的小区特定PRS完成定位测量。
UE1接收到所述UE特定PRS配置后，将忽略gNB/TRP广播的小区特定PRS配置。
图5是根据一示例性实施例示出的定位参考信号配置方法的流程示意图，如图5所示，本示例的定位参考信号配置方法包括以下处理步骤：
步骤501，LMF接收针对UE1的定位请求消息。
LMF基于定位请求消息确定UE1的定位需求为紧急业务，需要低时延，高精度的定位，LMF评估小区特定PRS不满足UE1的定位要求。
步骤502，LMF向UE1发送LPP消息。
其中，LPP消息中携带有定位辅助信息(LPP Provide Assistance Data)，该定位辅助信息中包含UE特定PRS配置信息及UE1的标识信息。
步骤503，UE1根据UE特定PRS配置信息接收gNB/TRP发送UE特定PRS。
UE1通过LMF发送的定位辅助信息接收UE特定PRS配置，并按照 所接收的UE特定PRS配置接收gNB/TRP发送的UE特定PRS，完成定位测量。
UE1接收到所述UE特定PRS配置后，将忽略gNB/TRP广播的小区特定PRS配置。
图6是根据一示例性实施例示出的定位参考信号配置方法的流程示意图，如图6所示，本示例的定位参考信号配置方法包括以下处理步骤：
步骤601，LMF接收针对UE1的定位请求消息。
LMF基于定位请求消息确定UE1的定位需求为紧急业务，需要低时延，高精度的定位，LMF评估小区特定PRS不满足UE1的定位要求。
步骤602，LMF向gNB/TRP发送NRPPa消息。
其中，所述NRPPa消息中承载有指示信息，该指示信息指示gNB/TRP启用LMF与gNB提前约定的UE特定PRS配置，并且包含UE1的标识信息。
步骤603，gNB/TRP向UE1发送RRC消息。
gNB/TRP接收到LMF发送的指示信息后，根据指示信息的指示将相应的UE特定的PRS配置向UE1发送。具体地，gNB/TRP向UE1发送下行RRC消息，所述RRC消息中携带有UE1的标识信息及所述UE特定PRS配置的资源信息。
步骤604，gNB/TRP向UE1发送UE特定PRS。
UE1通过监听gNB/TRP发送的下行RRC消息，确定自身需要监听gNB/TRP发送的UE特定PRS。UE1基于RRC消息中的所述UE特定PRS配置的资源信息，接收gNB/TRP发送的UE特定PRS，完成定位测量；否则按照gNB/TRP广播消息中的小区特定PRS配置接收基站发送的小区特定PRS完成定位测量。
UE1接收到所述UE特定PRS配置后，将忽略gNB/TRP广播的小区 特定PRS配置。
图7是根据一示例性实施例示出的定位参考信号配置装置的组成结构示意图，如图7所示，本公开实施例的定位参考信号配置装置包括：
第一确定单元41，配置为确定用于用户设备UE的小区特定定位参考信号PRS配置是否满足所述UE的定位需求，未满足所述UE的定位需求时触发第二确定单元42；
第二确定单元42，配置为为所述UE确定UE特定PRS配置；
发送单元43，配置为发送小区特定PRS配置，以及至少一套所确定的UE特定PRS配置。
在一个实施例中，所述第一确定单元42，还配置为：
基于对所述UE的定位请求消息，确定所述UE的小区特定PRS配置未满足所述UE定位需求。
在图7所示的定位参考信号配置装置的基础上，本公开实施例的定位参考信号配置装置还包括：
配置单元(图7中未示出)，配置为与所述基站预先确定UE特定PRS配置，在所述基站中预配置所述UE特定PRS配置；
所述第一确定单元41还配置为确定UE的小区特定PRS配置未满足所述UE的定位需求时，触发所述发送单元43向所述基站发送启用所述UE特定PRS配置的指示信息，使所述基站基于所述指示信息启用所述UE特定PRS配置。
在一个实施例中，所述第一确定单元41还配置为确定UE的小区特定PRS配置未满足所述UE的定位需求时，触发所述发送单元43向所述基站发送所述UE特定PRS的配置参数。
在一个实施例中，所述UE特定PRS的配置参数包括以下信息至少之一：所述UE特定PRS的发送周期、所述UE特定PRS的发送起始时间、 所述UE特定PRS的发送波束。
在一个实施例中，所述发送单元43，还配置为：
向所述基站发送所述UE特定PRS配置所适用的UE的标识信息，使基站基于所述UE特定PRS配置所适用的UE的标识信息，向所述标识信息对应的UE发送下行无线资源链接RRC消息，所述RRC消息中携带有所述UE特定的PRS配置资源信息。
在一个实施例中，所述发送单元43，还配置为：
向所述UE发送定位辅助信息，所述定位辅助信息中携带有UE特定PRS配置，使所述UE基于所述UE特定PRS配置接收UE特定PRS。
在示例性实施例中，第一确定单元41、第二确定单元42、发送单元43、配置单元等可以被一个或多个中央处理器(CPU，Central Processing Unit)、图形处理器(GPU，Graphics Processing Unit)、基带处理器(BP，base频带processor)、应用专用集成电路(ASIC，Application Specific Integrated Circuit)、DSP、可编程逻辑器件(PLD，Programmable Logic Device)、复杂可编程逻辑器件(CPLD，Complex Programmable Logic Device)、现场可编程门阵列(FPGA，Field-Programmable Gate Array)、通用处理器、控制器、微控制器(MCU，Micro Controller Unit)、微处理器(Microprocessor)、或其他电子元件实现，也可以结合一个或多个射频(RF，radio frequency)天线实现，用于执行前述用户直连通信方法。
在本公开实施例中，图7示出的定位参考信号配置装置中各个单元执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图8是根据一示例性实施例示出的定位参考信号配置装置的组成结构示意图，如图8所示，本公开实施例的定位参考信号配置装置包括：
接收单元51，配置为接收网络设备发送的携带有UE特定PRS配置的 下行消息，基于所述UE特定PRS配置接收UE特定PRS；
定位单元52，配置为基于所述UE特定PRS进行定位。
在一个实施例中，所述接收单元51，还配置为：
基于基站发送的RRC消息或LMF发送的定位辅助信息，确定所述UE接收所述UE特定PRS配置时，忽略所述网络设备通过系统消息发送的小区特定PRS配置。
在一个实施例中，所述接收单元51，还配置为：
接收基站发送的下行控制消息，所述下行控制消息中携带承载UE特定PRS配置的资源信息；基于所述下行控制消息确定UE特定PRS配置；或者
接收LMF发送的定位辅助信息，所述下行定位辅助信息中携带承载UE特定PRS配置的资源信息；基于所述定位辅助信息确定UE特定PRS配置。
在一个实施例中，所述接收单元51，还配置为：
基于小区特定PRS配置接收基站发送的小区特定PRS。
在一个实施例中，所述UE特定PRS配置包括以下信息至少之一：
所述UE特定PRS的发送周期、所述UE特定PRS的发送起始时间、所述UE特定PRS的发送波束。
在示例性实施例中，接收单元51、定位单元52等可以被一个或多个中央处理器(CPU，Central Processing Unit)、图形处理器(GPU，Graphics Processing Unit)、基带处理器(BP，base频带processor)、应用专用集成电路(ASIC，Application Specific Integrated Circuit)、DSP、可编程逻辑器件(PLD，Programmable Logic Device)、复杂可编程逻辑器件(CPLD，Complex Programmable Logic Device)、现场可编程门阵列(FPGA，Field-Programmable Gate Array)、通用处理器、控制器、微控制器(MCU， Micro Controller Unit)、微处理器(Microprocessor)、或其他电子元件实现，也可以结合一个或多个射频(RF，radio frequency)天线实现，用于执行前述用户直连通信方法。
在本公开实施例中，图8示出的定位参考信号配置装置中各个单元执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
本领域技术人员应当理解，图8所示的定位参考信号配置装置能够与图7所示的定位参考信号配置装置配合形成定位参考信号配置系统，基于该定位参考信号配置系统，能够对UE进行更准确的定位。
本公开实施例的定位参考信号配置装置，根据不同用户设备对PRS的配置要求不同，为定位要求高的用户设备配置UE特定PRS配置，使这部分UE能够根据UE特定的PRS配置，向网络侧发送UE特定的PRS，以便网络侧基于UE特定的PRS，对UE实现更精确的定位。本公开实施例为不同的定位需求的UE提供差异化的PRS配置，UE根据自身需求监听小区特定PRS配置或UE特定PRS配置，从而满足了UE的不同定位需求。
图9是根据一示例性实施例示出的一种用户设备6000的框图。例如，用户设备6000可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图9，用户设备6000可以包括以下一个或多个组件：处理组件6002，存储器6004，电源组件6006，多媒体组件6008，音频组件6010，输入/输出(I/O)的接口6012，传感器组件6014，以及通信组件6016。
处理组件6002通常控制用户设备6000的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件6002可以包括一个或多个处理器6020来执行指令，以完成上述的方法的全部或部 分步骤。此外，处理组件6002可以包括一个或多个模块，便于处理组件6002和其他组件之间的交互。例如，处理组件6002可以包括多媒体模块，以方便多媒体组件6008和处理组件6002之间的交互。
存储器6004被配置为存储各种类型的数据以支持在设备6000的操作。这些数据的示例包括用于在用户设备6000上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器6004可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件6006为用户设备6000的各种组件提供电力。电源组件6006可以包括电源管理系统，一个或多个电源，及其他与为用户设备6000生成、管理和分配电力相关联的组件。
多媒体组件6008包括在用户设备6000和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件6008包括一个前置摄像头和/或后置摄像头。当设备6000处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件6010被配置为输出和/或输入音频信号。例如，音频组件6010包括一个麦克风(MIC)，当用户设备6000处于操作模式，如呼叫模式、记 录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器6004或经由通信组件6016发送。在一些实施例中，音频组件6010还包括一个扬声器，用于输出音频信号。
I/O接口6012为处理组件6002和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件6014包括一个或多个传感器，用于为用户设备6000提供各个方面的状态评估。例如，传感器组件6014可以检测到设备6000的打开/关闭状态，组件的相对定位，例如组件为用户设备6000的显示器和小键盘，传感器组件6014还可以检测用户设备6000或用户设备6000一个组件的位置改变，用户与用户设备6000接触的存在或不存在，用户设备6000方位或加速/减速和用户设备6000的温度变化。传感器组件6014可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件6014还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件6014还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件6016被配置为便于用户设备6000和其他设备之间有线或无线方式的通信。用户设备6000可以接入基于通信标准的无线网络，如Wi-Fi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件6016经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，通信组件6016还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，用户设备6000可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编 程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述定位参考信号配置方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器6004，上述指令可由用户设备6000的处理器6020执行以完成上述定位参考信号配置方法。例如，非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本发明实施例的其它实施方案。本申请旨在涵盖本发明实施例的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本发明实施例的一般性原理并包括本公开实施例未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本发明实施例的真正范围和精神由下面的权利要求指出。
应当理解的是，本发明实施例并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本发明实施例的范围仅由所附的权利要求来限制。

Claims (26)

  1. 一种定位参考信号配置方法，其中，所述方法包括：
    定位管理功能LMF确定用于用户设备UE定位的小区特定定位参考信号PRS配置未满足所述UE的定位需求时，为所述UE确定UE特定PRS配置，发送所确定的所述UE特定PRS配置。
  2. 根据权利要求1所述的方法，其中，所述LMF确定用于UE定位的小区特定PRS配置未满足所述UE的定位需求，包括：
    所述LMF接收对所述UE的定位请求消息，基于所述定位请求消息确定用于所述UE定位的小区特定PRS配置未满足所述UE定位需求。
  3. 根据权利要求1所述的方法，其中，所述方法还包括：
    所述LMF与所述基站预先确定UE特定PRS配置，在所述基站中预配置所述UE特定PRS配置；
    响应于所述LMF确定所述UE的小区特定PRS配置未满足所述UE的定位需求，向所述基站发送启用所述UE特定PRS配置的指示信息，以使所述基站基于所述指示信息发送小区特定PRS配置和所述UE特定PRS配置。
  4. 根据权利要求1所述的方法，其中，所述方法还包括：
    所述LMF确定UE的小区特定PRS配置未满足所述UE的定位需求时，向所述基站发送所述UE特定PRS的配置参数，以使基站发送小区特定PRS配置和所述UE特定PRS配置。
  5. 根据权利要求4所述的方法，其中，所述UE特定PRS的配置参数包括以下信息至少之一：
    所述UE特定PRS的发送周期、所述UE特定PRS的发送起始时间、所述UE特定PRS的发送波束。
  6. 根据权利要求2或3所述的方法，其中，所述方法还包括：
    所述LMF向所述基站发送所述UE特定PRS配置所适用的UE的标识信息，以使所述基站基于所述UE特定PRS配置所适用的UE的标识信息，向所述标识信息对应的UE发送下行无线资源链接RRC消息，所述RRC消息中携带有所述UE特定的PRS配置资源信息。
  7. 根据权利要求1所述的方法，其中，所述方法还包括：
    所述LMF向所述UE发送定位辅助信息，所述定位辅助信息中携带有所述UE特定PRS配置，使所述UE基于所述UE特定PRS配置接收所述UE特定PRS。
  8. 一种定位参考信号配置方法，其中，所述方法包括：
    用户设备UE接收网络设备发送的携带有所述UE特定PRS配置的下行消息，基于所述UE特定PRS配置接收所述UE的特定PRS，基于所述UE特定PRS进行定位。
  9. 根据权利要求8所述的方法，其中，所述方法还包括：
    所述UE基于基站发送的RRC消息或LMF发送的定位辅助信息，确定所述UE接收到所述UE特定PRS配置时，忽略所述网络设备通过系统消息发送的小区特定PRS配置。
  10. 根据权利要求8所述的方法，其中，所述方法还包括：
    所述UE接收基站发送的下行控制消息，所述下行控制消息中携带承载UE特定PRS配置的资源信息；基于所述下行控制消息确定UE特定PRS配置；或者
    所述UE接收LMF发送的定位辅助信息，所述下行定位辅助信息中携带承载UE特定PRS配置的资源信息；基于所述定位辅助信息确定UE特定PRS配置。
  11. 根据权利要求8所述的方法，其中，所述方法还包括：
    所述UE接收网络设备发送的小区特定PRS配置，基于小区特定PRS 配置发送小区特定PRS。
  12. 根据权利要求8至11任一项所述的方法，其中，所述UE特定PRS配置包括以下信息至少之一：
    所述UE特定PRS的发送周期、所述UE特定PRS的发送起始时间、所述UE特定PRS的发送波束。
  13. 一种定位参考信号配置装置，其中，所述装置包括：
    第一确定单元，配置为确定用于用户设备UE定位的小区特定定位参考信号PRS配置是否满足所述UE的定位需求，未满足所述UE的定位需求时触发第二确定单元；
    第二确定单元，配置为为所述UE确定UE特定PRS配置；
    发送单元，配置为发送所确定的所述UE特定PRS配置。
  14. 根据权利要求13所述的装置，其中，所述第一确定单元，还配置为：
    基于对所述UE的定位请求消息，确定用于所述UE定位的小区特定PRS配置未满足所述UE定位需求。
  15. 根据权利要求13所述的装置，其中，所述装置还包括：
    配置单元，配置为与所述基站预先确定UE特定PRS配置，在所述基站中预配置所述UE特定PRS配置；
    所述第一确定单元还配置为响应于确定所述UE的小区特定PRS配置未满足所述UE的定位需求，触发所述发送单元向所述基站发送启用所述UE特定PRS配置的指示信息，以使所述基站基于所述指示信息发送小区特定PRS配置和所述UE特定PRS配置。
  16. 根据权利要求13所述的装置，其中，所述第一确定单元还配置为确定UE的小区特定PRS配置未满足所述UE的定位需求时，触发所述发送单元向所述基站发送所述UE特定PRS的配置参数，以使所述基站发送 小区特定PRS配置和所述UE特定PRS配置。
  17. 根据权利要求16所述的装置，其中，所述UE特定PRS的配置参数包括以下信息至少之一：
    所述UE特定PRS的发送周期、所述UE特定PRS的发送起始时间、所述UE特定PRS的发送波束。
  18. 根据权利要求14或15所述的装置，其中，所述发送单元，还配置为：
    向所述基站发送所述UE特定PRS配置所适用的UE的标识信息，以使所述基站基于所述UE特定PRS配置所适用的UE的标识信息，向所述标识信息对应的UE发送下行无线资源链接RRC消息，所述RRC消息中携带有所述UE特定的PRS配置资源信息。
  19. 根据权利要求13所述的装置，其中，所述发送单元，还配置为：
    向所述UE发送定位辅助信息，所述定位辅助信息中携带有UE特定PRS配置，使所述UE基于所述UE特定PRS配置接收UE特定PRS。
  20. 一种定位参考信号配置装置，其中，所述装置包括：
    接收单元，配置为接收网络设备发送的携带有UE特定PRS配置的下行消息，基于所述UE特定PRS配置接收UE特定PRS；
    定位单元，配置为基于所述UE特定PRS进行定位。
  21. 根据权利要求20所述的装置，其中，所述接收单元，还配置为：
    基于基站发送的RRC消息或LMF发送的定位辅助信息，确定所述UE接收所述UE特定PRS配置时，忽略所述网络设备通过系统消息发送的小区特定PRS配置。
  22. 根据权利要求20所述的装置，其中，所述接收单元，还配置为：
    接收基站发送的下行控制消息，所述下行控制消息中携带承载UE特定PRS配置的资源信息；基于所述下行控制消息确定UE特定PRS配置；或 者
    接收LMF发送的定位辅助信息，所述下行定位辅助信息中携带承载UE特定PRS配置的资源信息；基于所述定位辅助信息确定UE特定PRS配置。
  23. 根据权利要求20所述的装置，其中，所述接收单元，还配置为：
    基于小区特定PRS配置接收基站发送的小区特定PRS。
  24. 根据权利要求20至23任一项所述的装置，其中，所述UE特定PRS配置包括以下信息至少之一：
    所述UE特定PRS的发送周期、所述UE特定PRS的发送起始时间、所述UE特定PRS的发送波束。
  25. 一种用户设备，包括处理器、收发器、存储器及存储在存储器上并能够由所述处理器运行的可执行程序，所述处理器运行所述可执行程序时执行如权利要求1至12任一项所述的定位参考信号配置方法的步骤。
  26. 一种存储介质，其上存储由可执行程序，所述可执行程序被处理器执行时实现如权利要求1至12任一项所述定位参考信号配置方法的步骤。
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