WO2023125510A1 - 定位方法及网络侧设备 - Google Patents

定位方法及网络侧设备 Download PDF

Info

Publication number
WO2023125510A1
WO2023125510A1 PCT/CN2022/142253 CN2022142253W WO2023125510A1 WO 2023125510 A1 WO2023125510 A1 WO 2023125510A1 CN 2022142253 W CN2022142253 W CN 2022142253W WO 2023125510 A1 WO2023125510 A1 WO 2023125510A1
Authority
WO
WIPO (PCT)
Prior art keywords
network device
access network
positioning
message
protocol message
Prior art date
Application number
PCT/CN2022/142253
Other languages
English (en)
French (fr)
Inventor
张宏平
潘翔
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2023125510A1 publication Critical patent/WO2023125510A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present application belongs to the technical field of communications, and specifically relates to a positioning method and network side equipment, where the network side equipment includes access network equipment and core network equipment.
  • the core network will not trigger the terminal to enter the RRC connection state.
  • RRC Radio Resource Control
  • the first base station triggers the terminal to recover from the RRC deactivation state to the RRC connection state after receiving the positioning protocol message, and when the first base station receives the RRC context release message sent by the second base station (target base station) After receiving the message, send a failure message corresponding to the positioning protocol message to the positioning server.
  • the serving base station of the terminal has become the second base station. Therefore, when the failure message passes through the core network, the core network will discard the message received from the first base station. Therefore, the positioning server cannot receive the failure message and cannot re-initiate positioning in time.
  • the embodiment of the present application provides a positioning method and network side equipment, which can solve the problem that the positioning server cannot re-initiate positioning in time because the positioning server cannot receive the failure message corresponding to the positioning protocol message.
  • a positioning method including: a first access network device receives a first positioning protocol message related to a terminal from a positioning server; wherein, the first positioning protocol message is a communication between the positioning server and the access Communication protocol messages between network devices, the terminal is in an RRC deactivated state, and the first access network device is an access network device that saves the RRC context information of the terminal; the first access network device In the case of receiving a terminal context retrieval request message from the second access network device, sending a failure message corresponding to the first positioning protocol message to the positioning server, and/or, the first access The network access device sends a terminal context retrieval response message to the second access network device, where the terminal context retrieval response message includes first indication information, and the first indication information is used to instruct the first access network device to receive to the first positioning protocol message.
  • a positioning method including: a second access network device receives an RRC recovery request message from a terminal; the second access network device sends a terminal context retrieval request to the first access network device message; wherein, the first access network device is an access network device that saves the RRC context information of the terminal; the second access network device receives the retrieval terminal from the first access network device A context response message, the retrieve terminal context response message includes first indication information, and the first indication information is used to indicate that the first access network device has received a first positioning protocol message; wherein, the first positioning The protocol message is a communication protocol message between the positioning server and the access network device.
  • a positioning method including: a positioning server sends a first positioning protocol message related to a terminal to a first access network device; wherein, the first positioning protocol message is a communication between the positioning server and the access network device The message of the communication protocol between, the terminal is in the RRC deactivated state, and the first access network device is an access network device that saves the RRC context information of the terminal; the positioning server receives the information corresponding to the first A failure message of a positioning protocol message; wherein, the failure message is sent by the first access network device when receiving a terminal context retrieval request message from the second access network device, and/or
  • the positioning server receives a second positioning protocol message sent by a second access network device, the second positioning protocol message includes second indication information, and the second indication information is used to trigger the positioning server to send the
  • the second access network device sends a third positioning protocol message; wherein, the second access network device is the target access network device for the terminal to initiate RRC recovery, and the second positioning protocol message is the second access network device It
  • a first access network device including: a receiving module, configured to receive a first positioning protocol message related to a terminal from a positioning server; wherein, the first positioning protocol message is a positioning server A message of a communication protocol with an access network device, the terminal is in an RRC deactivated state, and the first access network device is an access network device that saves the RRC context information of the terminal; a sending module, configured to In the case of receiving a terminal context retrieval request message from the second access network device, send a failure message corresponding to the first positioning protocol message to the positioning server, and/or send a message to the second access network device The network device sends a terminal context retrieval response message, where the terminal context retrieval response message includes first indication information, and the first indication information is used to indicate that the first access network device has received the first positioning protocol message .
  • a second access network device including: a receiving module, configured to receive an RRC recovery request message from a terminal; a sending module, configured to send a terminal context retrieval request to the first access network device message; wherein, the first access network device is an access network device that saves the RRC context information of the terminal; the receiving module is further configured to receive a retrieval terminal from the first access network device A context response message, the retrieve terminal context response message includes first indication information, and the first indication information is used to indicate that the first access network device has received a first positioning protocol message; wherein, the first positioning The protocol message is a communication protocol message between the positioning server and the access network device.
  • a positioning server which is characterized by comprising: a sending module, configured to send a first positioning protocol message related to a terminal to a first access network device; wherein, the first positioning protocol message is A communication protocol message between the positioning server and the access network device, the terminal is in an RRC deactivated state, and the first access network device is an access network device that saves the RRC context information of the terminal; the receiving module, It is used to receive a failure message corresponding to the first positioning protocol message; wherein the failure message is when the first access network device receives the terminal context retrieval request message from the second access network device and/or receive a second positioning protocol message sent by a second access network device, where the second positioning protocol message includes second indication information, and the second indication information is used to trigger the positioning server sending a third positioning protocol message to the second access network device; wherein, the second access network device is the target access network device for the terminal to initiate RRC recovery, and the second positioning protocol message is the It is sent by the second access network device when receiving the path
  • a network-side device in a seventh aspect, includes a processor and a memory, the memory stores programs or instructions that can run on the processor, and the programs or instructions are executed by the processor When implementing the steps of the method described in any one of the first aspect to the third aspect.
  • a network side device including a processor and a communication interface, wherein the communication interface is used to implement the steps of the method according to any one of the first aspect to the third aspect.
  • a readable storage medium on which a program or instruction is stored, and when the program or instruction is executed by a processor, the method described in any one of the first aspect to the third aspect is implemented. method steps.
  • a chip in a tenth aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions, so as to implement the first aspect to the third aspect The step of any described method.
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the first aspect to the second aspect The steps of the method described in any one of the three aspects.
  • the first access network device when the first access network device receives the first positioning protocol message related to the terminal from the positioning server, and the terminal is in the RRC deactivated state, the first access network device receives When receiving a terminal context request message from the second access network device, send a failure message corresponding to the first positioning protocol message to the positioning server, so that after receiving the failure message, the positioning server can send the failure message to the positioning server.
  • the second access network device sends a third positioning protocol message, and/or, the terminal context retrieval response message sent by the first access network device to the second access network device carries first indication information, and the first indication
  • the information is used to indicate that the first access network device has received the first positioning protocol message, so that after the path is switched, the second access network device can send a message carrying the second indication information to the positioning server based on the first indication information.
  • the second positioning protocol message so as to trigger the positioning server to send the third positioning protocol message to the second access network device, so that the positioning process can be re-initiated in time, and the positioning delay can be reduced.
  • FIG. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a positioning method according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a positioning method according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a positioning method according to an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a positioning method according to an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a positioning method according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a first access network device according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a second access network device according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a positioning server according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a network side device according to an embodiment of the present application.
  • Fig. 12 is a schematic structural diagram of a network side device according to an embodiment of the present application.
  • first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
  • “and/or” in the description and claims means at least one of the connected objects, and the character “/” generally means that the related objects are an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies.
  • the following description describes the New Radio (New Radio, NR) system for example purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th Generation (6thGeneration, 6G )Communication Systems.
  • Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12 .
  • the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, a super mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR) / virtual reality (virtual reality, VR) equipment, robot, wearable device (Wearable Device) , vehicle equipment (VUE), pedestrian terminal (PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, personal computers (PC), teller machines or self-service Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelet
  • the network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function, or a wireless access network unit.
  • RAN Radio Access Network
  • the access network equipment may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.
  • the base station may be called a node B, an evolved node B (eNB), an access network Access Point, Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B, Home Evolution Type B node, Transmitting Receiving Point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms.
  • eNB evolved node B
  • BTS Base Transceiver Station
  • BSS Basic Service Set
  • ESS Extended Service Set
  • TRP Transmitting Receiving Point
  • TRP Transmitting Receiving Point
  • Core network equipment may include but not limited to at least one of the following: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), User Plane Function (UPF), Policy Control Function (Policy Control Function, PCF), Policy and Charging Rules Function (PCRF), edge application service Discovery function (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data storage (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration ( Centralized network configuration, CNC), network storage function (Network Repository Function, NRF), network exposure function (Network Exposure Function, NEF), local NEF (Local NEF, or L-NEF), binding support function (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), User
  • the embodiment of the present application provides a positioning method 200, which can be executed by the first access network device, in other words, the method can be executed by software or hardware installed on the first access network device,
  • the method includes the following steps.
  • the first access network device receives a first positioning protocol message related to the terminal from the positioning server; wherein, the first positioning protocol message is a communication protocol message between the positioning server and the access network device, so The terminal is in a radio resource control (Radio Resource Control, RRC) deactivated state, and the first access network device is an access network device that stores RRC context information of the terminal.
  • RRC Radio Resource Control
  • the positioning protocol messages mentioned in the various embodiments of the present application can all be New Air Interface Positioning Protocol a (NR Positioning Protocol a, NRPPa) messages.
  • the terminal in the RRC connection state enters the RRC deactivation state under the first access network device
  • the first access network device may be the anchor access network device of the terminal, which stores the RRC context information of the terminal , the first access network device maintains a terminal connection with the core network.
  • the terminal moves in the RRC deactivated state, moves to the coverage of the second access network device, performs cell reselection to the first cell under the second access network device, that is, the first cell is the current cell where the terminal resides (serving cell), and the second access network device is the access network device where the terminal currently resides. Since the first cell under the second access network device is located within the radio access network notification area (RAN Notification Area, RNA) configured for the terminal, the terminal does not need to initiate an RRC recovery process in the second access network device.
  • RNA radio access network notification area
  • the positioning server may be a location management function (Location Management Function, LMF). If the positioning server needs to interact with the access network equipment, such as requesting Sounding Reference Signal (Sounding Reference Signal, SRS) resources, requesting to initiate cell identity (Identity, ID) positioning method measurement, etc., then generate a first positioning protocol message, and send to The first access network device sends the first positioning protocol message.
  • LMF Location Management Function
  • the positioning server transmits the NRPPa protocol data unit (Protocol Data Unit, PDU) to the core network, and the core network finds that it is the NRPPa PDU associated with the terminal, then generates an NG (new generation) interface application protocol (NG Application Protocol, NGAP) message, That is, the downlink terminal-related new air interface positioning protocol a transmission (DOWNLINK UE ASSOCIATED NRPPA TRANSPORT) message, which includes the AMF UE NGAP ID and RAN UE NGAP ID of the terminal, the routing ID (Routing ID) for addressing the positioning server, and the NRPPa PDU, and then the core network sends the service access network device of the terminal (from the perspective of the core network, the first access network device is the service access network device of the terminal, therefore, the service access network device here refers to the first access network device network equipment) to send the DOWNLINK UE ASSOCIATED NRPPA TRANSPORT message.
  • PDU protocol Data Unit
  • NGAP new generation interface application protocol
  • the first access network device After receiving the first positioning protocol message, the first access network device determines that the terminal is in the RRC deactivated state and that the first positioning protocol message is a terminal-related message.
  • the first positioning protocol message is an NRPPa message
  • the NRPPa message is a terminal-related message.
  • the associated message may refer to that the NRPPa message is sent to the access network device through the DOWNLINK UE ASSOCIATED NRPPA TRANSPORT message, and the following steps are performed.
  • the first access network device parses the NRPPa PDU, processes the first positioning protocol message, and returns a response message.
  • the first access network device sends a paging (paging) message in the cell under the access network device; the first access network device sends a RANpaging message to other access network devices within the RNA range, such as the second access network device .
  • the second access network device sends a paging message in a cell under the access network device.
  • the terminal After receiving the paging message, the terminal sends an RRC resume request (RRC Resume Request) message to the second access network device in the first cell; the second access network device sends a retrieval terminal context request message to the first access network device, Used to request the context of this terminal.
  • the first access network device may also send a terminal context retrieval response message to the second access network device.
  • S204 includes two solutions, that is, solution 1: when the first access network device receives the terminal context retrieval request message from the second access network device, it sends A failure message corresponding to the first positioning protocol message, that is, receiving a terminal context retrieval request message from the second access network device, triggering the first access network device to send a corresponding A failure message based on the first positioning protocol message;
  • Solution 2 The first access network device sends a terminal context retrieval response message to the second access network device, and the terminal context retrieval response message includes a first indication information, the first indication information is used to indicate that the first access network device has received the first positioning protocol message. Only one of the schemes 1 and 2 may be implemented, or both of the schemes 1 and 2 may be implemented.
  • the second access network device may also send an RRC resume (RRC resume) message to the terminal, and then the terminal sends a message to the second access network device.
  • the second access network device sends an RRC resume complete (RRC resume complete) message, and the second access network device sends a Path Switch Request (Path Switch Request) message to the core network; the core network sends a Path Switch Request confirmation to the second access network device (Path Switch Request Ack) message; the first access network device receives the RRC context release message sent by the second access network device; at this time, the first access network device can know that the terminal has successfully passed the second access network device The RRC connection is restored.
  • RRC resume RRC resume complete
  • Path Switch Request Path Switch Request confirmation to the second access network device
  • the first access network device In Solution 1, the first access network device generates a failure message corresponding to the first positioning protocol message and sends it to the positioning server.
  • the failure message may include a cause value, and the cause value is used to indicate that the serving RAN node has changed.
  • the first access network device sends a failure message to the positioning server.
  • the first access network device generates an NGAP message, that is, the uplink terminal associated new air interface positioning protocol a transmission (UPLINK UE ASSOCIATED NRPPA TRANSPORT), the The message includes the terminal's AMF UE NGAP ID, RAN UE NGAP ID, Routing ID, and the NRPPa PDU of the failure message, and then sends the UPLINK UE ASSOCIATED NRPPA TRANSPORT message to the core network.
  • the first access network device is still the service access network device of the terminal.
  • the core network device will not discard the message, but find the positioning server based on the Routing ID, and pass the NRPPa PDU to the positioning server, thereby positioning
  • the server can re-initiate the location process.
  • the second access network device may also send a path switch request message to the core network device; after receiving the path switch request confirmation message from the core network device, the second access network device In this case (at this time, from the perspective of the core network, the second access network device is the serving access network device of the terminal), send a second positioning protocol message to the positioning server based on the first indication information, and the second The positioning protocol message includes second indication information, and the second indication information is used to trigger the positioning server to send a third positioning protocol message to the second access network device; the second access network device receives the third positioning protocol message from the The third positioning protocol message of the positioning server.
  • the first access network device when the first access network device receives the first positioning protocol message related to the terminal from the positioning server, and the terminal is in the RRC deactivated state, the first access network device When receiving the terminal context retrieval request message from the second access network device, sending a failure message corresponding to the first positioning protocol message to the positioning server, so that after receiving the failure message, the positioning server, A third positioning protocol message may be sent to the second access network device, and/or, the terminal context retrieval response message sent by the first access network device to the second access network device carries the first indication information, the first The indication information is used to indicate that the first access network device has received the first positioning protocol message, so that after the path switching, the second access network device may send a message carrying the second positioning information to the positioning server based on the first indication information.
  • the second positioning protocol message indicating the information triggers the positioning server to send the third positioning protocol message to the second access network device, so that the positioning process can be reinitiated in time to reduce the positioning delay.
  • the failure message may include delay time information, and the delay time information is used for the positioning server to delay sending to the location based on the delay time information when the failure message is received.
  • the second access network device sends a third positioning protocol message.
  • the positioning server may send the third positioning protocol message to the second access network device only after the RRC recovery process of the terminal is completed, that is, after the second access network device becomes the serving access network device of the terminal. .
  • the first indication information includes at least one of the following 1) and 2):
  • routing identifier where the routing identifier is used to search for the positioning server.
  • the transaction identifier includes the transaction identifier of the first positioning protocol message, that is, the transaction identifier is the transaction identifier of the first positioning protocol message, and is used for the positioning server to be able to based on the first The indication information fails to obtain the first positioning protocol message.
  • the failure message includes a cause value.
  • the cause value indicates that the serving RAN node has changed, so the positioning server may send a third positioning protocol message to the second access network device based on the cause value.
  • the third positioning protocol message and the first positioning protocol message may be the same message, that is, a resent message; the third positioning protocol message may also be based on the first positioning protocol message
  • FIG. 3 is partly the same as or corresponds to the description of the method shown in FIG. 2 , and related descriptions are appropriately omitted to avoid repetition.
  • Fig. 3 is a schematic diagram of the implementation flow of the positioning method according to the embodiment of the present application, which can be applied to the second access network device. As shown in FIG. 3 , the method 300 includes the following steps.
  • the second access network device receives an RRC recovery request message from the terminal.
  • the second access network device sends a terminal context retrieval request message to the first access network device; wherein the first access network device is an access network device that saves the RRC context information of the terminal.
  • the second access network device receives a terminal context retrieval response message from the first access network device, where the terminal context retrieval response message includes first indication information, and the first indication information is used to indicate The first access network device has received a first positioning protocol message; wherein, the first positioning protocol message is a communication protocol message between the positioning server and the access network device.
  • the second access network device receives the RRC recovery request message from the terminal and then sends the terminal context retrieval request message to the first access network device, and the retrieved terminal context request message received by the second access network device
  • the terminal context response message carries first indication information, and the first indication information is used to indicate that the first access network device has received the first positioning protocol message, so that the second access network device after path switching
  • a second positioning protocol message carrying the second indication information may be sent to the positioning server based on the first indication information, thereby triggering the positioning server to send a third positioning protocol message to the second access network device, so that the positioning process may be reinitiated in time, reducing positioning delay.
  • the method further includes: 1) the second access network device The network access device sends a path switch request message to the core network device; 2) the second access network device receives the path switch request confirmation message from the core network device, based on the first indication information sending a second positioning protocol message to the positioning server, where the second positioning protocol message includes second indication information, and the second indication information is used to trigger the positioning server to send a third positioning protocol message to the second access network device message; 3) The second access network device receives the third positioning protocol message from the positioning server.
  • the second indication information is used to indicate at least one of the following: a service access network device changes, the terminal is in an RRC deactivated state, and the first positioning protocol message needs to be resent .
  • the first indication information includes at least one of the following 1) and 2):
  • routing identifier where the routing identifier is used to search for the positioning server.
  • the second positioning protocol message includes the transaction identifier.
  • the second positioning protocol message includes an identifier of a current serving cell of the terminal.
  • the second positioning protocol message is an error indication (Error Indication) message.
  • FIG. 4 is partly the same as or corresponds to the description of the method shown in FIG. 2 or FIG. 3 , and related descriptions are appropriately omitted to avoid repetition.
  • Fig. 4 is a schematic diagram of the implementation flow of the positioning method according to the embodiment of the present application, which can be applied to the positioning server. As shown in FIG. 4 , the method 400 includes the following steps.
  • the positioning server sends a first positioning protocol message related to the terminal to the first access network device; wherein, the first positioning protocol message is a communication protocol message between the positioning server and the access network device, and the terminal In the RRC deactivated state, the first access network device is an access network device that saves the RRC context information of the terminal.
  • the positioning server receives a failure message corresponding to the first positioning protocol message; wherein, the failure message is that the first access network device receives a terminal context retrieval request from the second access network device and/or, the positioning server receives a second positioning protocol message sent by a second access network device, the second positioning protocol message includes second indication information, and the second indication information uses to trigger the positioning server to send a third positioning protocol message to the second access network device.
  • the second access network device is the target access network device for the terminal to initiate RRC recovery
  • the second positioning protocol message is that the second access network device receives the path from the core network device Sent in case of handover request acknowledgment message.
  • the positioning server sends a first positioning protocol message related to the terminal to the first access network device, the terminal is in the RRC deactivated state, and the positioning server fails to receive the first positioning protocol message message; wherein, the failure message is sent by the first access network device upon receiving a terminal context retrieval request message from the second access network device, and/or, the positioning server receives The second positioning protocol message sent by the second access network device, the second positioning protocol message includes second indication information, and the second indication information is used to trigger the positioning server to send to the second access network device
  • the embodiment of the present application can re-initiate the positioning process in time to reduce the positioning delay.
  • the failure message includes delay time information
  • the method further includes: the positioning server based on the Delaying time information, delaying sending the third positioning protocol message to the second access network device.
  • the method further includes: the positioning server delays sending to the The second access network device sends a third positioning protocol message.
  • the delaying sending the third positioning protocol message to the second access network device includes: sending the third positioning protocol message to the second access network device when the timer expires. Protocol message; Wherein, the method further includes: the positioning server starts the timer when receiving the failure message, and the duration of the timer is related to the delay time information, for example, delay time The duration indicated by the information is equal to the duration of the timer.
  • the failure message includes a failure cause value used to indicate that the serving access network device changes.
  • the second indication information is used to indicate at least one of the following: a service access network device changes, the terminal is in an RRC deactivated state, and the first positioning protocol message needs to be resent .
  • the second positioning protocol message satisfies at least one of the following:
  • the second positioning protocol message includes a transaction identifier, and the transaction identifier includes the transaction identifier of the first positioning protocol message.
  • the second positioning protocol message includes the identity of the current serving cell of the terminal.
  • the second positioning protocol message is an error indication message.
  • the first base station returns a corresponding failure message carrying a cause value when receiving the Retrieval Terminal (User Equipment, UE) context response message, and the LMF delays retransmitting the NRPPa message.
  • UE User Equipment
  • the first base station sends the NRPPa failure message after receiving the RRC context release message sent by the second base station, but at this time the serving base station has become the second base station, and the core network will discard the failure message.
  • the main idea of this embodiment is: the first base station (corresponding to the first access network device in the previous embodiment) receives the retrieval terminal sent by the second base station (corresponding to the second access network device in the previous embodiment)
  • a failure message corresponding to the NRPPa is sent to the positioning server. Since the terminal has not completed the RRC recovery process at the second base station at this time, the core network does not discard the failure message.
  • the NRPPa failure message carries a suggested delay time.
  • the positioning server After receiving the failure message of NRPPa, the positioning server delays for a period of time (for example, the suggested delay time carried in the failure message, or the delay time determined by the positioning server itself), so that after the RRC recovery process is completed, the second base station becomes the terminal's After serving the base station, an NRPPa message (corresponding to the third positioning protocol message in the foregoing embodiment) is sent to the second base station.
  • a period of time for example, the suggested delay time carried in the failure message, or the delay time determined by the positioning server itself
  • this embodiment includes the following steps:
  • Step 1 The terminal in the RRC connection state enters the RRC deactivation state under the first base station.
  • the first base station is the anchor base station of the terminal, and the anchor base station is the base station currently storing the RRC context information of the terminal.
  • the first base station maintains a terminal connection with the core network.
  • Step 2 The terminal moves in the RRC deactivated state, the terminal moves to the coverage of the second base station, and performs cell reselection to the first cell under the second base station, that is, the first cell is the current cell (serving cell) where the terminal resides , the second base station is the current camping base station of the terminal. Since the cell under the second base station is within the RNA range configured for the terminal, the terminal does not need to initiate an RRC recovery process at the second base station.
  • Step 3 The core network itself triggers or receives a positioning request for the terminal, and the core network sends the positioning request to the positioning server (LMF).
  • LMF positioning server
  • Step 4 The positioning server determines the positioning method. If it needs to interact with the base station, such as requesting SRS resources, requesting to initiate cell ID positioning method measurement, etc., it generates an NRPPa message and sends the NRPPa message to the first base station.
  • the server transmits the NRPPa PDU to the core network, and the core network finds that it is the NRPPa PDU associated with the UE, and then generates an NGAP message DOWNLINK UE ASSOCIATED NRPPA TRANSPORT, which includes the AMF UE NGAP ID and RAN UE NGAP ID of the terminal, addressing the location
  • the Routing ID of the server, and the NRPPa PDU and then the core network sends the DOWNLINK UE ASSOCIATED to the serving base station of the terminal (from the perspective of the core network, the first base station is the serving base station of the terminal, so the serving base station here refers to the first base station) NRPPA TRANSPORT news.
  • Step 5 After receiving the DOWNLINK UE ASSOCIATED NRPPA TRANSPORT message, the first base station determines that the terminal is in the RRC deactivated state and that the NRPPa message is a UE-associated message (NRRPPa message is a UE-associated message, which may refer to that the NRPPa message is sent through the DOWNLINK UE ASSOCIATED NRPPA TRANSPORT message sent to the base station), then perform the following steps. If it is not a message associated with the UE, the first base station parses the NRPPa PDU, processes the NRPPa message, and returns an NRPPa response message.
  • NRPPa message is a UE-associated message, which may refer to that the NRPPa message is sent through the DOWNLINK UE ASSOCIATED NRPPA TRANSPORT message sent to the base station
  • Step 6 The first base station sends a paging message in the cell under the base station.
  • Step 7 The first base station sends a RAN paging message to other base stations within the RNA range, such as the second base station.
  • Step 8 the second base station sends a paging message in the cell under the base station.
  • Step 9 After receiving the paging message, the terminal sends an RRC recovery request message to the second base station in the first cell.
  • Step 10 the second base station sends a UE context retrieval request message to the first base station, for requesting to obtain the context of the terminal.
  • Step 11 the first base station sends a UE context retrieval response message to the second base station.
  • Step 12 After the first base station receives the UE context retrieval request message and can know that the terminal has moved out of the current base station, the first base station generates an NRPPa failure message corresponding to the NRPPa message and sends it to the positioning server.
  • the NRPPa failure message includes a cause value , the cause value is used to indicate that the serving RAN node of the terminal has changed, and the cause value can be used to trigger the LMF to retransmit the NRPPa message.
  • the NRPPa failure message corresponding to the NRPPa message refers to, for example, if the NRPPa message is E-CID MEASUREMENT INITIATION REQUEST, then the NRPPa response message is E-CID MEASUREMENT INITIATION FAILURE; if the NRPPa message is POSITIONING INFORMATION REQUEST, then the NRPPa response The message is POSITIONING INFORMATION FAILURE; if the NRPPa message is POSITIONING ACTIVATION REQUEST, the NRPPa response message is POSITIONING ACTIVATION FAILURE; if the NRPPa message is MEASUREMENT REQUEST, the NRPPa response message is MEASUREMENT FAILURE.
  • the first base station sends an NRPPa failure message to the positioning server.
  • the first base station generates an NGAP message UPLINK UE ASSOCIATED NRPPA TRANSPORT, which includes the terminal's AMF UE NGAP ID and RAN UE NGAP ID, Routing ID (Routing ID in step 4), and the NRPPa PDU of the NRPPa failure message, then send the UPLINK UE ASSOCIATED NRPPA TRANSPORT message to the core network, after the core network receives the message, it will find the location server based on the Routing ID, and send the UPLINK UE ASSOCIATED NRPPA TRANSPORT message to the core network.
  • the NRPPa PDU is passed to the location server.
  • the NRPPa failure message carries a (recommended) delay time length, which is used to instruct the positioning server to resend the NRPPa message after delaying the time length, so that the positioning server resends the NRPPa message after step 17.
  • step 11 can be exchanged.
  • Step 13 The positioning server learns based on the cause value that it is necessary to delay resending the NRPPa message (to the new serving base station, ie, the second base station), and the positioning server starts a delay timer.
  • the duration of the delay timer may be determined by the positioning server itself, or may be the delay time received in step 12 .
  • Step 14 the second base station sends an RRC recovery message to the terminal.
  • Step 15 the terminal sends an RRC recovery complete message to the second base station.
  • Step 16 The second base station sends a Path Switch Request (Path Switch Request) message to the core network.
  • Path Switch Request Path Switch Request
  • Step 17 The core network sends a Path Switch Request Ack (Path Switch Request Ack) message to the second base station.
  • Path Switch Request Ack Path Switch Request Ack
  • Step 18 The first base station receives the RRC context release message sent by the second base station.
  • Step 19 The positioning server learns that the NRPPa process fails based on the NRPPa failure message, and further learns that the failure is because the terminal is in the inactive state based on the cause value. Different from other cause values, the positioning server determines based on the cause value in the NRPPa failure message that it needs to resend the NRPPa message (to the serving base station after the terminal performs RRC connection recovery).
  • the positioning server may update the content of the NRPPa message based on the target cell ID.
  • Step 20 The delay timer expires, thereby triggering the positioning server to send an NRPPa message to the second base station.
  • the positioning server transmits the NRPPa PDU to the core network, and the core network finds that the NRPPa PDU associated with the UE generates an NGAP message DOWNLINK UE ASSOCIATED NRPPA TRANSPORT, which includes the AMF UE NGAP ID and RAN UE NGAP ID of the terminal, Address the Routing ID of the positioning server and the NRPPa PDU, and then the core network sends the terminal's serving base station (from the perspective of the core network, after performing steps 16 and 17, the second base station is the terminal's serving base station, so here
  • the serving base station refers to the second base station) sending the DOWNLINK UE ASSOCIATED NRPPA TRANSPORT message.
  • the NRPPa message can be sent to the serving base station of the terminal, thereby avoiding positioning failure.
  • the second base station sends the second NRPPa message carrying the second indication information to the LMF, and the LMF retransmits the NRPPa message.
  • the first base station sends an NRPPa failure message to the positioning server.
  • the first base station carries the first indication information in the Retrieve Context Response message, which is used to indicate that the first base station has received the NRPPa message (associated with the UE), and the second base station performs path switching (the following figure 6 After step 15), an NRPPa message is sent to the positioning server based on the first indication information, such as deactivation state recovery indication information, thereby triggering the positioning server to send the NRPPa message to the second base station.
  • the first indication information such as deactivation state recovery indication information
  • this embodiment includes the following steps:
  • Steps 1-10 of this embodiment can refer to the embodiment shown in FIG. 5 , and to avoid repetition, details are not repeated here.
  • Step 11 the first base station sends a UE context retrieval response message to the second base station.
  • the NRPPa message is a UE-associated message (the NRPPa message is a UE-associated message, it may refer to that the NRPPa message is sent to the base station through the DOWNLINK UE ASSOCIATED NRPPA TRANSPORT message), then the response message carries the first indication information, used to indicate that the first base station received (but could not process) the NRPPa message (UE-associated).
  • the response message carries the Routing ID received in step 4, for the second base station to carry in the UPLINK UE ASSOCIATED NRPPA TRANSPORT when the second base station sends a response message to the positioning server in step 18, so that the core network can be based on the Routing ID. ID to find the location server.
  • the response message carries the transaction ID (Transaction ID, which is carried in the NRPPa message) of the NRPPa message in step 4, for carrying in the subsequent step 18.
  • Transaction ID Transaction ID, which is carried in the NRPPa message
  • Step 12 the second base station sends an RRC recovery message to the terminal.
  • Step 13 the terminal sends an RRC recovery complete message to the second base station.
  • Step 14 the second base station sends a path switching request message to the core network.
  • Step 15 The core network sends a path switching request confirmation message to the second base station.
  • Step 16 the first base station receives the RRC context release message sent by the second base station.
  • Step 17 The second base station determines based on the first indication information that it needs to send an NRPPa message to the positioning server, where the NRPPa message carries second indication information, and the second indication information is used to indicate at least one of the following: the serving node changes, or the terminal is in Deactivated state, or need to retransmit NRPPa message.
  • the NRPPa message can be a newly introduced message, or an error indication (ERROR INDICATION) message.
  • the first base station sends the NRPPa message to the positioning server.
  • the first base station generates an NGAP message UPLINK UE ASSOCIATED NRPPA TRANSPORT, which includes the terminal's AMF UE NGAP ID and RAN UE NGAP ID, Routing ID (Routing ID in step 4), and the NRPPa PDU of this NRPPa message, then send this UPLINK UE ASSOCIATED NRPPA TRANSPORT message to core network, after core network receives this message, find this positioning server based on this Routing ID, will wherein The NRPPa PDU is passed to the location server.
  • the NRPPa message carries the current serving cell ID of the terminal.
  • the NRPPa message carries the Transaction ID received in step 11, so that the location server can know which NRPPa message needs to be retransmitted.
  • Step 18 The second base station sends an NRPPa message to the positioning server, where the NRPPa message carries the second indication information.
  • Step 19 Based on the received NRPPa message, the positioning server knows that it needs to resend the NRPPa message in step 4 to the current serving base station of the terminal. Optionally, the positioning server may update the content of the NRPPa message based on the current serving cell ID.
  • Step 20 The positioning server sends the NRPPa message to the second base station, so as to continue the positioning process at the second base station.
  • the NRPPa message can be sent to the serving base station of the terminal, thereby avoiding positioning failure.
  • FIG. 7 is a schematic structural diagram of a first access network device according to an embodiment of the present application. As shown in FIG. 7 , the first access network device 700 includes the following modules.
  • the receiving module 702 is configured to receive a first positioning protocol message related to the terminal from the positioning server; wherein, the first positioning protocol message is a communication protocol message between the positioning server and the access network device, and the terminal In the RRC deactivated state, the first access network device is an access network device that saves the RRC context information of the terminal.
  • a sending module 704 configured to send a failure message corresponding to the first positioning protocol message to the positioning server when receiving a terminal context retrieval request message from the second access network device, and/or , sending a terminal context retrieval response message to the second access network device, where the terminal context retrieval response message includes first indication information, and the first indication information is used to indicate that the first access network device has received the the first positioning protocol message.
  • the first access network device when the first access network device receives the first positioning protocol message related to the terminal from the positioning server, and the terminal is in the RRC deactivated state, the first access network device When the network access device receives the terminal context retrieval request message from the second access network device, it sends a failure message corresponding to the first positioning protocol message to the positioning server, so that the positioning server receives the After the failure message, a third positioning protocol message may be sent to the second access network device, and/or the terminal context retrieval response message sent by the first access network device to the second access network device carries the first indication information , the first indication information is used to indicate that the first access network device has received the first positioning protocol message, so that after the path switching, the second access network device can send a message to the positioning server based on the first indication information Sending the second positioning protocol message carrying the second indication information triggers the positioning server to send the third positioning protocol message to the second access network device, so that the positioning process can be reinitiated in time to reduce the positioning delay
  • the failure message includes delay time information, and the delay time information is used for the positioning server to delay sending to the The second access network device sends a third positioning protocol message.
  • the first indication information includes at least one of the following 1) and 2):
  • routing identifier where the routing identifier is used to search for the positioning server.
  • the failure message includes a failure cause value used to indicate that the serving access network device changes.
  • the first access network device 700 can refer to the process of the method 200 corresponding to the embodiment of the present application, and each unit/module in the first access network device 700 and other operations and/or functions mentioned above In order to implement the corresponding processes in the method 200 and achieve the same or equivalent technical effect, for the sake of brevity, details are not repeated here.
  • FIG. 8 is a schematic structural diagram of a second access network device according to an embodiment of the present application. As shown in FIG. 8 , the second access network device 800 includes the following modules.
  • the receiving module 802 is configured to receive an RRC recovery request message from a terminal.
  • a sending module 804 configured to send a terminal context retrieval request message to a first access network device; wherein the first access network device is an access network device that stores RRC context information of the terminal.
  • the receiving module 802 is further configured to receive a terminal context retrieval response message from the first access network device, where the terminal context retrieval response message includes first indication information, and the first indication information is used for Indicating that the first access network device has received a first positioning protocol message; wherein, the first positioning protocol message is a communication protocol message between the positioning server and the access network device.
  • the second access network device receives the RRC recovery request message from the terminal and then sends the terminal context retrieval request message to the first access network device, and the second access network device
  • the received Retrieve Terminal Context Response message carries first indication information, where the first indication information is used to indicate that the first access network device has received the first positioning protocol message, so that the second access network device
  • a second positioning protocol message carrying the second indication information may be sent to the positioning server based on the first indication information, thereby triggering the positioning server to send a third positioning protocol message to the second access network device, so that the location can be re-initiated in time.
  • the positioning process reduces the positioning delay.
  • the sending module 804 is further configured to send a path switch request message to the core network device; when receiving the path switch request confirmation message from the core network device, based on the The first indication information sends a second positioning protocol message to the positioning server, the second positioning protocol message includes second indication information, and the second indication information is used to trigger the positioning server to send the Sending a third positioning protocol message; the receiving module 802 is further configured to receive the third positioning protocol message from the positioning server.
  • the second indication information is used to indicate at least one of the following: a service access network device changes, the terminal is in an RRC deactivated state, and the first positioning protocol message needs to be resent .
  • the first indication information includes at least one of the following 1) and 2):
  • routing identifier where the routing identifier is used to search for the positioning server.
  • the second positioning protocol message includes the transaction identifier.
  • the second positioning protocol message includes an identifier of a current serving cell of the terminal.
  • the second positioning protocol message is an error indication message.
  • the second access network device 800 can refer to the process of the method 300 corresponding to the embodiment of the present application, and each unit/module in the second access network device 800 and other operations and/or functions mentioned above In order to implement corresponding processes in the method 300 and achieve the same or equivalent technical effects, details are not described here for brevity.
  • FIG. 9 is a schematic structural diagram of a positioning server according to an embodiment of the present application. As shown in FIG. 9 , the positioning server 900 includes the following modules.
  • the sending module 902 is configured to send a first positioning protocol message related to the terminal to the first access network device; wherein, the first positioning protocol message is a communication protocol message between the positioning server and the access network device, and the The terminal is in an RRC deactivated state, and the first access network device is an access network device that stores RRC context information of the terminal.
  • the receiving module 904 is configured to receive a failure message corresponding to the first positioning protocol message; wherein, the failure message is that the first access network device receives the retrieval terminal from the second access network device sent in case of a context request message, and/or receive a second positioning protocol message sent by a second access network device, where the second positioning protocol message includes second indication information, and the second indication information is used to trigger
  • the positioning server sends a third positioning protocol message to the second access network device; wherein, the second access network device is a target access network device for the terminal to initiate RRC recovery, and the second positioning protocol The message is sent by the second access network device when receiving the path switching request confirmation message from the core network device.
  • the positioning server sends a first positioning protocol message related to the terminal to the first access network device, the terminal is in the RRC deactivated state, and the positioning server receives a failure corresponding to the first positioning protocol message message; wherein, the failure message is sent by the first access network device upon receiving a terminal context retrieval request message from the second access network device, and/or, the positioning server receives The second positioning protocol message sent by the second access network device, the second positioning protocol message includes second indication information, and the second indication information is used to trigger the positioning server to send to the second access network device
  • the embodiment of the present application can re-initiate the positioning process in time to reduce the positioning delay.
  • the failure message includes delay time information
  • the sending module 902 is further configured to delay sending the third positioning protocol message to the second access network device based on the delay time information .
  • the sending module 902 is further configured to delay sending the third positioning protocol message to the second access network device based on predefined delay time information.
  • the sending module 902 is configured to send a third positioning protocol message to the second access network device when the timer expires; wherein the positioning server further includes a start A module, configured to start the timer when the failure message is received, and the duration of the timer is related to the delay time information.
  • the failure message includes a failure cause value used to indicate that the serving access network device changes.
  • the second indication information is used to indicate at least one of the following: a service access network device changes, the terminal is in an RRC deactivated state, and the first positioning protocol message needs to be resent .
  • the second positioning protocol message satisfies at least one of the following 1) to 3):
  • the second positioning protocol message includes a transaction identifier, and the transaction identifier includes the transaction identifier of the first positioning protocol message.
  • the second positioning protocol message includes the identity of the current serving cell of the terminal.
  • the second positioning protocol message is an error indication message.
  • the positioning server 900 can refer to the process of the method 400 corresponding to the embodiment of the present application, and each unit/module in the positioning server 900 and the above-mentioned other operations and/or functions are respectively in order to realize the corresponding in the method 400 process, and can achieve the same or equivalent technical effect, for the sake of brevity, no more details are given here.
  • this embodiment of the present application also provides a communication device 1000, including a processor 1001 and a memory 1002, and the memory 1002 stores programs or instructions that can run on the processor 1001, such as
  • the communication device 1000 is a network-side device
  • the program or instruction is executed by the processor 1001
  • each step of the positioning method embodiment described above can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a network side device, including a processor and a communication interface, where the communication interface is used to execute the steps of the method in the embodiment shown in FIG. 2 or FIG. 3 .
  • the network-side device embodiment corresponds to the above-mentioned network-side device method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.
  • the embodiment of the present application also provides a network side device (such as a first access network device and a second access network device).
  • the network side device 1100 includes: an antenna 111, a radio frequency device 112, a baseband device 113, a processor 114 and a memory 115.
  • the antenna 111 is connected to the radio frequency device 112 .
  • the radio frequency device 112 receives information through the antenna 111, and sends the received information to the baseband device 113 for processing.
  • the baseband device 113 processes the information to be sent and sends it to the radio frequency device 112
  • the radio frequency device 112 processes the received information and sends it out through the antenna 111 .
  • the method performed by the network side device in the above embodiments may be implemented in the baseband device 113, where the baseband device 113 includes a baseband processor.
  • the baseband device 113 may include at least one baseband board, for example, a plurality of chips are arranged on the baseband board, as shown in FIG.
  • the program executes the network device operations shown in the above method embodiments.
  • the network side device may also include a network interface 116, such as a common public radio interface (common public radio interface, CPRI).
  • a network interface 116 such as a common public radio interface (common public radio interface, CPRI).
  • the network-side device 1100 in the embodiment of the present invention further includes: instructions or programs stored in the memory 115 and executable on the processor 114, and the processor 114 calls the instructions or programs in the memory 115 to execute FIG. 7 or FIG. 8
  • the methods executed by each module shown in the figure achieve the same technical effect, so in order to avoid repetition, they are not repeated here.
  • the embodiment of the present application also provides a network side device (such as a positioning server).
  • the network side device 1200 includes: a processor 1201 , a network interface 1202 and a memory 1203 .
  • the network interface 1202 is, for example, a common public radio interface (common public radio interface, CPRI).
  • the network side device 1200 in this embodiment of the present invention further includes: instructions or programs stored in the memory 1203 and executable on the processor 1201, and the processor 1201 calls the instructions or programs in the memory 1203 to execute the various programs shown in FIG.
  • the method of module execution achieves the same technical effect, so in order to avoid repetition, it is not repeated here.
  • the embodiment of the present application also provides a readable storage medium, the readable storage medium stores a program or an instruction, and when the program or instruction is executed by a processor, each process of the above-mentioned positioning method embodiment is realized, and can achieve the same Technical effects, in order to avoid repetition, will not be repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiments.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk, and the like.
  • the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement each of the above positioning method embodiments process, and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • the embodiment of the present application further provides a computer program/program product, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the above positioning method embodiment
  • a computer program/program product is stored in a storage medium
  • the computer program/program product is executed by at least one processor to implement the above positioning method embodiment
  • the embodiment of the present application also provides a positioning system, including: a terminal and a network side device, and the network side device can be used to execute the steps of the above positioning method.
  • the term “comprising”, “comprising” or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
  • the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
  • the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请实施例公开了一种定位方法及网络侧设备，属于通信技术领域。本申请实施例的定位方法包括：第一接入网设备接收来自于定位服务器的相关于终端的第一定位协议消息；其中，所述终端处于RRC去激活态，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备；所述第一接入网设备在接收到来自于第二接入网设备的取回终端上下文请求消息的情况下，向所述定位服务器发送对应于所述第一定位协议消息的失败消息，和/或，所述第一接入网设备向第二接入网设备发送取回终端上下文响应消息，所述取回终端上下文响应消息包括第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了所述第一定位协议消息。

Description

定位方法及网络侧设备
相关申请的交叉引用
本申请要求在2021年12月28日提交的中国专利申请第202111631896.X号的优先权，该中国专利申请的全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域，具体涉及一种定位方法及网络侧设备，该网络侧设备包括接入网设备以及核心网设备。
背景技术
对于定位业务，当终端处于无线资源控制(Radio Resource Control，RRC)去激活态时，核心网不会触发终端进入RRC连接态，当用于定位过程的终端关联的定位协议消息发送给终端的锚点基站时，终端可能由于移动而不在该锚点基站下，导致无法执行定位过程，从而导致定位失败。
相关技术中提出，第一基站(源基站)在收到定位协议消息后触发终端从RRC去激活态恢复到RRC连接态，当第一基站收到第二基站(目标基站)发送的RRC上下文释放消息后，向定位服务器发送该定位协议消息对应的失败消息。然而，该方案存在一些问题，具体是，从核心网的角度，终端的服务基站已经变成了第二基站，因此，在该失败消息经过核心网时，核心网会丢弃掉从第一基站接收到的上述失败消息，从而定位服务器不能收到该失败消息，导致无法及时重新发起定位。
发明内容
本申请实施例提供一种定位方法及网络侧设备，能够解决因定位服务器不能收到与定位协议消息对应的失败消息，导致无法及时重新发起定位的问 题。
第一方面，提供了一种定位方法，包括：第一接入网设备接收来自于定位服务器的相关于终端的第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息，所述终端处于RRC去激活态，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备；所述第一接入网设备在接收到来自于第二接入网设备的取回终端上下文请求消息的情况下，向所述定位服务器发送对应于所述第一定位协议消息的失败消息，和/或，所述第一接入网设备向第二接入网设备发送取回终端上下文响应消息，所述取回终端上下文响应消息包括第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了所述第一定位协议消息。
第二方面，提供了一种定位方法，包括：第二接入网设备接收来自于终端的RRC恢复请求消息；所述第二接入网设备向第一接入网设备发送取回终端上下文请求消息；其中，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备；所述第二接入网设备接收来自于所述第一接入网设备的取回终端上下文响应消息，所述取回终端上下文响应消息包括第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息。
第三方面，提供了一种定位方法，包括：定位服务器向第一接入网设备发送相关于终端的第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息，所述终端处于RRC去激活态，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备；所述定位服务器接收对应于所述第一定位协议消息的失败消息；其中，所述失败消息是所述第一接入网设备在接收到来自于第二接入网设备的取回终端上下文请求消息的情况下发送的，和/或，所述定位服务器接收第二接入网设备发送的第二定位协议消息，所述第二定位协议消息包括第二指示信息，所述第 二指示信息用于触发所述定位服务器向所述第二接入网设备发送第三定位协议消息；其中，所述第二接入网设备是所述终端发起RRC恢复的目标接入网设备，所述第二定位协议消息是所述第二接入网设备在接收到来自于核心网设备的路径切换请求确认消息的情况下发送的。
第四方面，提供了一种第一接入网设备，包括：接收模块，用于接收来自于定位服务器的相关于终端的第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息，所述终端处于RRC去激活态，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备；发送模块，用于在接收到来自于第二接入网设备的取回终端上下文请求消息的情况下，向所述定位服务器发送对应于所述第一定位协议消息的失败消息，和/或，向第二接入网设备发送取回终端上下文响应消息，所述取回终端上下文响应消息包括第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了所述第一定位协议消息。
第五方面，提供了一种第二接入网设备，包括：接收模块，用于接收来自于终端的RRC恢复请求消息；发送模块，用于向第一接入网设备发送取回终端上下文请求消息；其中，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备；所述接收模块，还用于接收来自于所述第一接入网设备的取回终端上下文响应消息，所述取回终端上下文响应消息包括第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息。
第六方面，提供了一种定位服务器，其特征在于，包括：发送模块，用于向第一接入网设备发送相关于终端的第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息，所述终端处于RRC去激活态，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备；接收模块，用于接收对应于所述第一定位协议消息的失败 消息；其中，所述失败消息是所述第一接入网设备在接收到来自于第二接入网设备的取回终端上下文请求消息的情况下发送的，和/或，接收第二接入网设备发送的第二定位协议消息，所述第二定位协议消息包括第二指示信息，所述第二指示信息用于触发所述定位服务器向所述第二接入网设备发送第三定位协议消息；其中，所述第二接入网设备是所述终端发起RRC恢复的目标接入网设备，所述第二定位协议消息是所述第二接入网设备在接收到来自于核心网设备的路径切换请求确认消息的情况下发送的。
第七方面，提供了一种网络侧设备，该网络侧设备包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面至第三方面任一项所述的方法的步骤。
第八方面，提供了一种网络侧设备，包括处理器及通信接口，其中，所述通信接口用于实现如第一方面至第三方面任一项所述的方法的步骤。
第九方面，提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如第一方面至第三方面任一项所述的方法的步骤。
第十方面，提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面至第三方面任一项所述的方法的步骤。
第十一方面，提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面至第三方面任一项所述的方法的步骤。
在本申请实施例中，在第一接入网设备接收来自于定位服务器的相关于终端的第一定位协议消息，且终端处于RRC去激活态的情况下，第一接入网设备在接收到来自于第二接入网设备的取回终端上下文请求消息时，向所述定位服务器发送对应于所述第一定位协议消息的失败消息，这样，定位服务器在收到该失败消息后，可以向第二接入网设备发送第三定位协议消息，和/ 或，第一接入网设备向第二接入网设备发送的取回终端上下文响应消息中携带第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了所述第一定位协议消息，这样，第二接入网设备在路径切换后，可以基于第一指示信息向定位服务器发送携带第二指示信息的第二定位协议消息，从而触发定位服务器向第二接入网设备发送第三定位协议消息，从而可以及时重新发起定位过程，降低定位时延。
附图说明
图1是根据本申请实施例的无线通信系统的示意图；
图2是根据本申请实施例的定位方法的示意性流程图；
图3是根据本申请实施例的定位方法的示意性流程图；
图4是根据本申请实施例的定位方法的示意性流程图；
图5是根据本申请实施例的定位方法的示意性流程图；
图6是根据本申请实施例的定位方法的示意性流程图；
图7是根据本申请实施例的第一接入网设备的结构示意图；
图8是根据本申请实施例的第二接入网设备的结构示意图；
图9是根据本申请实施例的定位服务器的结构示意图；
图10是根据本申请实施例的通信设备的结构示意图；
图11是根据本申请实施例的网络侧设备的结构示意图；
图12是根据本申请实施例的网络侧设备的结构示意图。
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描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。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。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”所区别的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是，本申请实施例所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，还可用于其他无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access，SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(NewRadio，NR)系统，并且在以下大部分描述中使用NR术语，但是这些技术也可应用于NR系统应用以外的应用，如第6代(6thGeneration，6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中，终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant，PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer，UMPC)、移动上网装置(Mobile Internet Device，MID)、增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)设备、机器人、可穿戴式设备(Wearable Device)、 车载设备(VUE)、行人终端(PUE)、智能家居(具有无线通信功能的家居设备，如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer，PC)、柜员机或者自助机等终端侧设备，可穿戴式设备包括：智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是，在本申请实施例并不限定终端11的具体类型。网络侧设备12可以包括接入网设备或核心网设备，其中，接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network，RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、无线局域网(Wireless Local Area Network，WLAN)接入点或无线保真(Wireless Fidelity，WiFi)节点等，基站可被称为节点B、演进节点B(eNB)、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、家用B节点、家用演进型B节点、发送接收点(Transmitting Receiving Point，TRP)或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本申请实施例中仅以NR系统中的基站为例进行介绍，并不限定基站的具体类型。核心网设备可以包含但不限于如下至少一项：核心网节点、核心网功能、移动管理实体(Mobility Management Entity，MME)、接入移动管理功能(Access and Mobility Management Function，AMF)、会话管理功能(Session Management Function，SMF)、用户平面功能(User Plane Function，UPF)、策略控制功能(Policy Control Function，PCF)、策略与计费规则功能单元(Policy and Charging Rules Function，PCRF)、边缘应用服务发现功能(Edge Application Server Discovery Function，EASDF)、统一数据管理(Unified Data Management，UDM)，统一数据仓储(Unified Data Repository，UDR)、归属用户服务器(Home Subscriber Server，HSS)、集中式网络配置(Centralized network configuration，CNC)、网络存储功能 (Network Repository Function，NRF)，网络开放功能(Network Exposure Function，NEF)、本地NEF(Local NEF，或L-NEF)、绑定支持功能(Binding Support Function，BSF)、应用功能(Application Function，AF)等。需要说明的是，在本申请实施例中仅以NR系统中的核心网设备为例进行介绍，并不限定核心网设备的具体类型。
下面结合附图，通过一些实施例及其应用场景对本申请实施例提供的定位方法进行详细地说明。
如图2所示，本申请实施例提供一种定位方法200，该方法可以由第一接入网设备执行，换言之，该方法可以由安装在第一接入网设备的软件或硬件来执行，该方法包括如下步骤。
S202：第一接入网设备接收来自于定位服务器的相关于终端的第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息，所述终端处于无线资源控制(Radio Resource Control，RRC)去激活态，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备。
本申请各个实施例中提到的定位协议消息，如第一定位协议消息，第二定位协议消息和第三定位协议消息，均可以是新空口定位协议a(NR Positioning Protocol a，NRPPa)消息。
该实施例中，RRC连接态的终端在第一接入网设备下进入RRC去激活态，第一接入网设备可以是该终端的锚点接入网设备，保存了该终端的RRC上下文信息，第一接入网设备保持着与核心网之间的终端连接。终端在RRC去激活态下移动，移动到第二接入网设备覆盖范围，执行小区重选到第二接入网设备下的第一小区，即第一小区是终端当前的驻留小区(服务小区)，第二接入网设备是终端当前的驻留接入网设备。由于第二接入网设备下的第一小区位于给该终端配置的无线接入网通知区域(RAN Notification Area，RNA)范围内，终端不需要在第二接入网设备内发起RRC恢复过程。
由于核心网自身触发或核心网接收到针对该终端的定位请求，核心网向定位服务器发送定位请求。该定位服务器可以是位置管理功能(Location Management Function，LMF)。定位服务器如果需要与接入网设备进行交互，比如请求探测参考信号(Sounding Reference Signal，SRS)资源，请求发起小区标识(Identity，ID)定位方法测量等，则生成第一定位协议消息，并向第一接入网设备发送该第一定位协议消息。例如，定位服务器传递NRPPa协议数据单元(Protocol Data Unit，PDU)给核心网，核心网发现是终端关联的NRPPa PDU，则生成一个NG(new generation)接口应用协议(NG Application Protocol，NGAP)消息，即下行终端相关新空口定位协议a传输(DOWNLINK UE ASSOCIATED NRPPA TRANSPORT)消息，该消息中包括该终端的AMF UE NGAP ID和RAN UE NGAP ID，寻址该定位服务器的路由标识(Routing ID)以及该NRPPa PDU，然后核心网向终端的服务接入网设备(从核心网来看，第一接入网设备是终端的服务接入网设备，因此，这里的服务接入网设备指第一接入网设备)发送该DOWNLINK UE ASSOCIATED NRPPA TRANSPORT消息。
第一接入网设备在接收到第一定位协议消息后，确定终端在RRC去激活态以及第一定位协议消息是终端关联的消息，例如，第一定位协议消息是NRPPa消息，NRPPa消息是终端关联的消息，可以指的是该NRPPa消息是通过DOWNLINK UE ASSOCIATED NRPPA TRANSPORT消息发送给接入网设备的，则执行后面的步骤。在其他的实施例中，如果第一定位协议消息不是终端关联的消息，则第一接入网设备解析该NRPPa PDU，处理该第一定位协议消息，并返回响应消息。
第一接入网设备在该接入网设备下的小区发送寻呼(paging)消息；第一接入网设备向RNA范围内的其他接入网设备，比如第二接入网设备发送RANpaging消息。第二接入网设备在该接入网设备下的小区发送paging消息。终端收到paging消息后，在第一小区向第二接入网设备发送RRC恢复请求 (RRC Resume Request)消息；第二接入网设备向第一接入网设备发送取回终端上下文请求消息，用于请求获取该终端的上下文。第一接入网设备还可以向第二接入网设备发送取回终端上下文响应消息。
S204：第一接入网设备在接收到来自于第二接入网设备的取回终端上下文请求消息的情况下，向所述定位服务器发送对应于所述第一定位协议消息的失败消息，和/或，所述第一接入网设备向第二接入网设备发送取回终端上下文响应消息，所述取回终端上下文响应消息包括第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了所述第一定位协议消息。
可以理解，S204中包括两个方案，即方案一：所述第一接入网设备在接收到来自于第二接入网设备的取回终端上下文请求消息的情况下，向所述定位服务器发送对应于所述第一定位协议消息的失败消息，也就是，接收到来自于第二接入网设备的取回终端上下文请求消息，触发所述第一接入网设备向所述定位服务器发送对应于所述第一定位协议消息的失败消息；方案二：所述第一接入网设备向第二接入网设备发送取回终端上下文响应消息，所述取回终端上下文响应消息包括第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了所述第一定位协议消息。方案一和方案二可以仅执行其中一者，或者，方案一和方案二可以均被执行。
该实施例中，第一接入网设备向第二接入网设备发送取回终端上下文响应消息之后，第二接入网设备还可以向终端发送RRC恢复(RRC resume)消息，随后终端向第二接入网设备发送RRC恢复完成(RRC resume complete)消息，第二接入网设备向核心网发送路径切换请求(Path Switch Request)消息；核心网向第二接入网设备发送路径切换请求确认(Path Switch Request Ack)消息；第一接入网设备收到第二接入网设备发送的RRC上下文释放消息；此时，第一接入网设备能获知终端已经在第二接入网设备成功恢复了RRC连接。
在方案一中，第一接入网设备生成与第一定位协议消息对应的失败消息 并发送给定位服务器，该失败消息可以包括原因值，该原因值用于指示服务RAN节点发生改变。
第一接入网设备发送失败消息给定位服务器，对于这个操作，具体的，第一接入网设备生成一个NGAP消息，即上行终端相关新空口定位协议a传输(UPLINK UE ASSOCIATED NRPPA TRANSPORT)，该消息中包括该终端的AMF UE NGAP ID和RAN UE NGAP ID，Routing ID，以及失败消息的NRPPa PDU，然后向核心网发送该UPLINK UE ASSOCIATED NRPPA TRANSPORT消息，核心网收到该消息后，由于此时第一接入网设备还是该终端的服务接入网该设备，核心网设备不会丢弃掉该消息，而是基于该Routing ID找到该定位服务器，将其中的NRPPa PDU传递给定位服务器，从而定位服务器可以重新发起定位过程。
在方案二中，所述第二接入网设备还可以向核心网设备发送路径切换请求消息；所述第二接入网设备在接收到来自于所述核心网设备的路径切换请求确认消息的情况下(此时，从核心网的角度，第二接入网设备是该终端的服务接入网设备)，基于所述第一指示信息向定位服务器发送第二定位协议消息，所述第二定位协议消息包括第二指示信息，所述第二指示信息用于触发所述定位服务器向所述第二接入网设备发送第三定位协议消息；所述第二接入网设备接收来自于所述定位服务器的所述第三定位协议消息。
在方案一和方案二中，关于第二接入网设备以及定位服务器执行的步骤的详细介绍可以参见后文实施例的介绍。
本申请实施例提供的定位方法，在第一接入网设备接收来自于定位服务器的相关于终端的第一定位协议消息，且终端处于RRC去激活态的情况下，第一接入网设备在接收到来自于第二接入网设备的取回终端上下文请求消息时，向所述定位服务器发送对应于所述第一定位协议消息的失败消息，这样，定位服务器在收到该失败消息后，可以向第二接入网设备发送第三定位协议消息，和/或，第一接入网设备向第二接入网设备发送的取回终端上下文响应 消息中携带第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了所述第一定位协议消息，这样，第二接入网设备在路径切换后，可以基于第一指示信息向定位服务器发送携带第二指示信息的第二定位协议消息，从而触发定位服务器向第二接入网设备发送第三定位协议消息，从而可以及时重新发起定位过程，降低定位时延。
可选地，在方案一中，所述失败消息可以包括延迟时间信息，所述延迟时间信息用于所述定位服务器在接收到所述失败消息的情况下，基于所述延迟时间信息延迟向所述第二接入网设备发送第三定位协议消息。该实施例可以在终端的RRC恢复过程完成后，也就是第二接入网设备变成终端的服务接入网设备后，定位服务器才向所述第二接入网设备发送第三定位协议消息。
可选地，在方案二中，所述第一指示信息包括如下1)和2)中的至少之一：
1)路由标识，所述路由标识用于查找所述定位服务器。
2)事务标识，所述事务标识包括所述第一定位协议消息的事务标识，也就是，所述事务标识是所述第一定位协议消息的事务标识，用于定位服务器能基于所述第一指示信息获知第一定位协议消息发生了失败。
可选地，在方案一中，所述失败消息包括原因值。例如，该原因值指明服务RAN节点发生了改变，这样，定位服务器可以基于该原因值向所述第二接入网设备发送第三定位协议消息。
需要说明的是，本申请各个实施例中，第三定位协议消息与第一定位协议消息可以是同一个消息，也就是重新发送的消息；第三定位协议消息也可以是基于第一定位协议消息进行内容更新后的消息，比如，基于目标小区(第一小区)进行更新。
以上结合图2详细描述了根据本申请实施例的定位方法。下面将结合图3详细描述根据本申请另一实施例的定位方法。可以理解的是，图3与图2所示的方法的描述部分相同或相对应，为避免重复，适当省略相关描述。
图3是本申请实施例的定位方法实现流程示意图，可以应用在第二接入网设备。如图3所示，该方法300包括如下步骤。
S302：第二接入网设备接收来自于终端的RRC恢复请求消息。
S304：第二接入网设备向第一接入网设备发送取回终端上下文请求消息；其中，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备。
S306：第二接入网设备接收来自于所述第一接入网设备的取回终端上下文响应消息，所述取回终端上下文响应消息包括第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息。
本申请实施例提供的定位方法，第二接入网设备接收来自于终端的RRC恢复请求消息后向第一接入网设备发送取回终端上下文请求消息，第二接入网设备接收的取回终端上下文响应消息中携带第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了所述第一定位协议消息，这样，第二接入网设备在路径切换后，可以基于第一指示信息向定位服务器发送携带第二指示信息的第二定位协议消息，从而触发定位服务器向第二接入网设备发送第三定位协议消息，从而可以及时重新发起定位过程，降低定位时延。
可选地，作为一个实施例，所述第二接入网设备接收来自于所述第一接入网设备的取回终端上下文响应消息之后，所述方法还包括：1)所述第二接入网设备向核心网设备发送路径切换请求消息；2)所述第二接入网设备在接收到来自于所述核心网设备的路径切换请求确认消息的情况下，基于所述第一指示信息向定位服务器发送第二定位协议消息，所述第二定位协议消息包括第二指示信息，所述第二指示信息用于触发所述定位服务器向所述第二接入网设备发送第三定位协议消息；3)所述第二接入网设备接收来自于所述定位服务器的所述第三定位协议消息。
可选地，作为一个实施例，所述第二指示信息用于指示如下至少之一：服务接入网设备发生改变，所述终端在RRC去激活态，需要重新发送所述第 一定位协议消息。
可选地，在方案二中，所述第一指示信息包括如下1)和2)中的至少之一：
1)路由标识，所述路由标识用于查找所述定位服务器。
2)事务标识，所述事务标识包括所述第一定位协议消息的事务标识。
可选地，作为一个实施例，所述第二定位协议消息包括所述事务标识。
可选地，作为一个实施例，所述第二定位协议消息包括所述终端当前的服务小区的标识。
可选地，作为一个实施例，所述第二定位协议消息是错误指示(Error Indication)消息。
下面将结合图4详细描述根据本申请另一实施例的定位方法。可以理解的是，图4与图2或图3所示的方法的描述部分相同或相对应，为避免重复，适当省略相关描述。
图4是本申请实施例的定位方法实现流程示意图，可以应用在定位服务器。如图4所示，该方法400包括如下步骤。
S402：定位服务器向第一接入网设备发送相关于终端的第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息，所述终端处于RRC去激活态，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备。
S404：定位服务器接收对应于所述第一定位协议消息的失败消息；其中，所述失败消息是所述第一接入网设备在接收到来自于第二接入网设备的取回终端上下文请求消息的情况下发送的，和/或，所述定位服务器接收第二接入网设备发送的第二定位协议消息，所述第二定位协议消息包括第二指示信息，所述第二指示信息用于触发所述定位服务器向所述第二接入网设备发送第三定位协议消息。
其中，所述第二接入网设备是所述终端发起RRC恢复的目标接入网设备， 所述第二定位协议消息是所述第二接入网设备在接收到来自于核心网设备的路径切换请求确认消息的情况下发送的。
本申请实施例提供的定位方法，定位服务器向第一接入网设备发送相关于终端的第一定位协议消息，终端处于RRC去激活态，定位服务器接收对应于所述第一定位协议消息的失败消息；其中，所述失败消息是所述第一接入网设备在接收到来自于第二接入网设备的取回终端上下文请求消息的情况下发送的，和/或，所述定位服务器接收第二接入网设备发送的第二定位协议消息，所述第二定位协议消息包括第二指示信息，所述第二指示信息用于触发所述定位服务器向所述第二接入网设备发送第三定位协议消息，本申请实施例可以及时重新发起定位过程，降低定位时延。
可选地，作为一个实施例，所述失败消息包括延迟时间信息，所述定位服务器接收对应于所述第一定位协议消息的失败消息之后，所述方法还包括：所述定位服务器基于所述延迟时间信息，延迟向所述第二接入网设备发送第三定位协议消息。
可选地，作为一个实施例，所述定位服务器接收对应于所述第一定位协议消息的失败消息之后，所述方法还包括：所述定位服务器基于预定义的延迟时间信息，延迟向所述第二接入网设备发送第三定位协议消息。
可选地，作为一个实施例，所述延迟向所述第二接入网设备发送第三定位协议消息包括：在定时器超时的情况下，向所述第二接入网设备发送第三定位协议消息；其中，所述方法还包括：所述定位服务器在接收到所述失败消息的情况下，启动所述定时器，所述定时器的时长与所述延迟时间信息相关，例如，延迟时间信息指示的时长等于定时器的时长。
可选地，作为一个实施例，所述失败消息包括用于指示服务接入网设备发生改变的失败原因值。
可选地，作为一个实施例，所述第二指示信息用于指示如下至少之一：服务接入网设备发生改变，所述终端在RRC去激活态，需要重新发送所述第 一定位协议消息。
可选地，作为一个实施例，所述第二定位协议消息满足如下至少之一：
1)所述第二定位协议消息包括事务标识，所述事务标识包括所述第一定位协议消息的事务标识。
2)所述第二定位协议消息包括所述终端当前的服务小区的标识。
3)所述第二定位协议消息是错误指示消息。
为详细说明本申请实施例提供的定位方法，以下将结合两个具体的实施例进行说明。
该实施例中，第一基站在收到取回终端(User Equipment，UE)上下文响应消息时返回对应的失败消息，携带原因值，LMF延迟重传NRPPa消息。
相关技术中，第一基站在收到第二基站发送的RRC上下文释放消息后发送NRPPa失败消息，然而此时服务基站已经变为第二基站，核心网会丢弃掉该失败消息。本实施例的主要思想是：第一基站(对应于前文实施例的第一接入网设备)在收到第二基站(对应于前文实施例的第二接入网设备)发送的取回终端上下文请求消息时，向定位服务器发送对应该NRPPa的失败消息。由于此时终端还没有在第二基站完成RRC恢复过程，因此，核心网不丢弃掉该失败消息。可选的，NRPPa的失败消息中携带建议的延迟时间。定位服务器在收到NRPPa的失败消息后，延迟一段时间后(比如，失败消息携带的建议延迟时间，或者定位服务器自己确定的延迟时间)，从而在RRC恢复过程完成，第二基站变成终端的服务基站后，向第二基站发送NRPPa消息(对应于前文实施例的第三定位协议消息)。
如图5所示，该实施例包括如下步骤：
步骤1：RRC连接态的终端在第一基站下进入RRC去激活态，第一基站是该终端的锚点基站，锚点基站是当前保存该终端的RRC上下文信息的基站。第一基站保持着与核心网之间的终端连接。
步骤2：终端在RRC去激活态下移动，终端移动到第二基站覆盖范围， 执行小区重选到第二基站下的第一小区，即第一小区是终端当前的驻留小区(服务小区)，第二基站是终端当前的驻留基站。由于第二基站下的该小区位于给该终端配置的RNA范围内，终端不需要在第二基站发起RRC恢复过程。
步骤3：核心网自身触发或接收到针对该终端的定位请求，核心网向定位服务器(LMF)发送定位请求。
步骤4：定位服务器确定定位方法，如果需要与基站进行交互，比如请求SRS资源，请求发起小区ID定位方法测量等，则生成一个NRPPa消息，并向第一基站发送该NRPPa消息，具体的，定位服务器传递NRPPa PDU给核心网，核心网发现是UE关联的NRPPa PDU，则生成一个NGAP消息DOWNLINK UE ASSOCIATED NRPPA TRANSPORT，该消息中包括该终端的AMF UE NGAP ID和RAN UE NGAP ID，寻址该定位服务器的Routing ID，以及该NRPPa PDU，然后核心网向终端的服务基站(从核心网来看，第一基站是终端的服务基站，因此，这里的服务基站指第一基站)发送该DOWNLINK UE ASSOCIATED NRPPA TRANSPORT消息。
步骤5：第一基站收到DOWNLINK UE ASSOCIATED NRPPA TRANSPORT消息后，确定终端在RRC去激活态以及NRPPa消息是UE关联的消息(NRPPa消息是UE关联的消息，可以指的是该NRPPa消息是通过DOWNLINK UE ASSOCIATED NRPPA TRANSPORT消息发送给基站的)，则执行后面的步骤。如果不是UE关联的消息，则第一基站解析该NRPPa PDU，处理该NRPPa消息，并返回NRPPa响应消息。
步骤6：第一基站在该基站下的小区发送寻呼消息。
步骤7：第一基站向RNA范围内的其他基站，比如第二基站发送RAN寻呼消息。
步骤8：第二基站在该基站下的小区发送寻呼消息。
步骤9：终端收到寻呼消息后，在第一小区向第二基站发送RRC恢复请 求消息。
步骤10：第二基站向第一基站发送取回UE上下文请求消息，用于请求获取该终端的上下文。
步骤11：第一基站向第二基站发送取回UE上下文响应消息。
步骤12：第一基站收到取回UE上下文请求消息后，能获知终端移出了当前基站，则第一基站生成与NRPPa消息对应的NRPPa失败消息并发送给定位服务器，该NRPPa失败消息包括原因值，该原因值用于指示终端的服务RAN节点发生改变，该原因值可以用于触发LMF重传NRPPa消息。此处，NRPPa消息对应的NRPPa失败消息指的是，比如，如果NRPPa消息是E-CID MEASUREMENT INITIATION REQUEST，则NRPPa响应消息是E-CID MEASUREMENT INITIATION FAILURE；如果NRPPa消息是POSITIONING INFORMATION REQUEST，则NRPPa响应消息是POSITIONING INFORMATION FAILURE；如果NRPPa消息是POSITIONING ACTIVATION REQUEST，则NRPPa响应消息是POSITIONING ACTIVATION FAILURE；如果NRPPa消息是MEASUREMENT REQUEST，则NRPPa响应消息是MEASUREMENT FAILURE。
第一基站发送NRPPa失败消息给定位服务器，对于这个操作，具体的，第一基站生成一个NGAP消息UPLINK UE ASSOCIATED NRPPA TRANSPORT，该消息中包括该终端的AMF UE NGAP ID和RAN UE NGAP ID，Routing ID(步骤4中的Routing ID)，以及NRPPa失败消息的NRPPa PDU，然后向核心网发送该UPLINK UE ASSOCIATED NRPPA TRANSPORT消息，核心网收到该消息后，基于该Routing ID找到该定位服务器，将其中的NRPPa PDU传递给定位服务器。
可选的，该NRPPa失败消息携带(建议的)延迟时间长度，用于指示定位服务器延迟该时间长度后重发NRPPa消息，使得定位服务器在步骤17之后才重发该NRPPa消息。
需要说明的是，该步骤与步骤11的顺序可以调换。
步骤13：定位服务器基于原因值获知需要(向新的服务基站，即第二基站)延迟重发NRPPa消息，定位服务器启动延迟定时器。延迟定时器的时长可以是定位服务器自己确定的，也可以是步骤12中接收到的延迟时间长度。
步骤14：第二基站向终端发送RRC恢复消息。
步骤15：终端向第二基站发送RRC恢复完成消息。
步骤16：第二基站向核心网发送路径切换请求(Path Switch Request)消息。
步骤17：核心网向第二基站发送路径切换请求确认(Path Switch Request Ack)消息。
步骤18：第一基站收到第二基站发送的RRC上下文释放消息。
步骤19：定位服务器基于该NRPPa失败消息获知该NRPPa过程失败，进一步基于原因值获知失败是因为终端位于inactive态。不同于其他原因值，定位服务器基于NRPPa失败消息中的原因值确定需要(向终端执行RRC连接恢复后的服务基站)重新发送NRPPa消息。
可选的，定位服务器可以基于目标小区ID更新NRPPa消息的内容。
步骤20：延迟定时器超时，从而触发定位服务器向第二基站发送NRPPa消息。具体的，定位服务器传递NRPPa PDU给核心网，核心网发现是UE关联的NRPPa PDU，则生成一个NGAP消息DOWNLINK UE ASSOCIATED NRPPA TRANSPORT，该消息中包括该终端的AMF UE NGAP ID和RAN UE NGAP ID，寻址该定位服务器的Routing ID，以及该NRPPa PDU，然后核心网向终端的服务基站(从核心网来看，在执行步骤16和17后，第二基站是终端的服务基站，因此，这里的服务基站指第二基站)发送该DOWNLINK UE ASSOCIATED NRPPA TRANSPORT消息。
该实施例通过上述方法，使得NRPPa消息能被发送给终端的服务基站，从而避免了定位失败。
参见图6所示的实施例，该实施例中，第二基站向LMF发送携带第二指示信息的第二NRPPa消息，LMF重传NRPPa消息。
在图5所示的实施例中，第一基站向定位服务器发送NRPPa失败消息。在本实施例中，第一基站在取回上下文响应消息中携带第一指示信息，用于指示第一基站收到了(UE关联的)NRPPa消息，第二基站在路径切换(下图6中的步骤15)后，基于第一指示信息向定位服务器发送NRPPa消息，比如去激活态恢复指示信息，从而触发定位服务器向第二基站发送NRPPa消息。
如图6所示，该实施例包括如下步骤：
该实施例的步骤1-10可以参见图5所示的实施例，为避免重复，在此不再赘述。
步骤11：第一基站向第二基站发送取回UE上下文响应消息。如果NRPPa消息是UE关联的消息(NRPPa消息是UE关联的消息，可以指的是该NRPPa消息是通过DOWNLINK UE ASSOCIATED NRPPA TRANSPORT消息发送给基站的)，则该响应消息中携带第一指示信息，用于指示第一基站收到了(UE关联的)NRPPa消息(但无法处理)。
可选的，该响应消息中携带步骤4中收到的Routing ID，用于第二基站在步骤18中向定位服务器发送响应消息时在UPLINK UE ASSOCIATED NRPPA TRANSPORT里携带，从而核心网能基于该Routing ID找到该定位服务器。
可选的，该响应消息中携带步骤4中NRPPa消息的事务ID(Transaction ID，该Transaction ID在该NRPPa消息里携带)，用于在后续的步骤18中携带。
步骤12：第二基站向终端发送RRC恢复消息。
步骤13：终端向第二基站发送RRC恢复完成消息。
步骤14：第二基站向核心网发送路径切换请求消息。
步骤15：核心网向第二基站发送路径切换请求确认消息。
步骤16：第一基站收到第二基站发送的RRC上下文释放消息。
步骤17：第二基站基于第一指示信息确定需要向定位服务器发送NRPPa消息，该NRPPa消息携带第二指示信息，该第二指示信息用于指示如下至少之一：服务节点发生改变，或终端在去激活态，或需要重传NRPPa消息。该NRPPa消息可以是一个新引入的消息，也可以是错误指示(ERROR INDICATION)消息。
第一基站发送该NRPPa消息给定位服务器，对于这个操作，具体的，第一基站生成一个NGAP消息UPLINK UE ASSOCIATED NRPPA TRANSPORT，该消息中包括该终端的AMF UE NGAP ID和RAN UE NGAP ID,Routing ID(步骤4中的Routing ID)，以及该NRPPa消息的NRPPa PDU，然后向核心网发送该UPLINK UE ASSOCIATED NRPPA TRANSPORT消息，核心网收到该消息后，基于该Routing ID找到该定位服务器，将其中的NRPPa PDU传递给定位服务器。
可选的，该NRPPa消息携带终端的当前服务小区ID。
可选的，该NRPPa消息携带步骤11中收到的Transaction ID，用于定位服务器能获知哪个NRPPa消息需要重传。
步骤18：第二基站向定位服务器发送NRPPa消息，该NRPPa消息携带第二指示信息。
步骤19：定位服务器基于接收的该NRPPa消息获知需要向终端的当前服务基站重新发送步骤4中的NRPPa消息。可选的，定位服务器可以基于当前服务小区ID更新该NRPPa消息的内容。
步骤20：定位服务器向第二基站发送该NRPPa消息，从而在第二基站继续定位过程。
该实施例通过上述方法，使得NRPPa消息能被发送给终端的服务基站，从而避免了定位失败。
图7是根据本申请实施例的第一接入网设备的结构示意图，如图7所示，第一接入网设备700包括如下模块。
接收模块702，用于接收来自于定位服务器的相关于终端的第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息，所述终端处于RRC去激活态，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备。
发送模块704，用于在接收到来自于第二接入网设备的取回终端上下文请求消息的情况下，向所述定位服务器发送对应于所述第一定位协议消息的失败消息，和/或，向第二接入网设备发送取回终端上下文响应消息，所述取回终端上下文响应消息包括第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了所述第一定位协议消息。
本申请实施例提供的第一接入网设备，在第一接入网设备接收来自于定位服务器的相关于终端的第一定位协议消息，且终端处于RRC去激活态的情况下，第一接入网设备在接收到来自于第二接入网设备的取回终端上下文请求消息时，向所述定位服务器发送对应于所述第一定位协议消息的失败消息，这样，定位服务器在收到该失败消息后，可以向第二接入网设备发送第三定位协议消息，和/或，第一接入网设备向第二接入网设备发送的取回终端上下文响应消息中携带第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了所述第一定位协议消息，这样，第二接入网设备在路径切换后，可以基于第一指示信息向定位服务器发送携带第二指示信息的第二定位协议消息，从而触发定位服务器向第二接入网设备发送第三定位协议消息，从而可以及时重新发起定位过程，降低定位时延。
可选地，作为一个实施例，所述失败消息包括延迟时间信息，所述延迟时间信息用于所述定位服务器在接收到所述失败消息的情况下，基于所述延迟时间信息延迟向所述第二接入网设备发送第三定位协议消息。
可选地，作为一个实施例，所述第一指示信息包括如下1)和2)中的至 少之一：
1)路由标识，所述路由标识用于查找所述定位服务器。
2)事务标识，所述事务标识包括所述第一定位协议消息的事务标识。
可选地，作为一个实施例，所述失败消息包括用于指示服务接入网设备发生改变的失败原因值。
根据本申请实施例的第一接入网设备700可以参照对应本申请实施例的方法200的流程，并且，该第一接入网设备700中的各个单元/模块和上述其他操作和/或功能分别为了实现方法200中的相应流程，并且能够达到相同或等同的技术效果，为了简洁，在此不再赘述。
图8是根据本申请实施例的第二接入网设备的结构示意图，如图8所示，第二接入网设备800包括如下模块。
接收模块802，用于接收来自于终端的RRC恢复请求消息。
发送模块804，用于向第一接入网设备发送取回终端上下文请求消息；其中，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备。
所述接收模块802，还用于接收来自于所述第一接入网设备的取回终端上下文响应消息，所述取回终端上下文响应消息包括第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息。
本申请实施例提供的第二接入网设备，第二接入网设备接收来自于终端的RRC恢复请求消息后向第一接入网设备发送取回终端上下文请求消息，第二接入网设备接收的取回终端上下文响应消息中携带第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了所述第一定位协议消息，这样，第二接入网设备在路径切换后，可以基于第一指示信息向定位服务器发送携带第二指示信息的第二定位协议消息，从而触发定位服务器向第二接入网设备发送第三定位协议消息，从而可以及时重新发起定位过程，降低定位时延。
可选地，作为一个实施例，所述发送模块804，还用于向核心网设备发送路径切换请求消息；在接收到来自于所述核心网设备的路径切换请求确认消息的情况下，基于所述第一指示信息向定位服务器发送第二定位协议消息，所述第二定位协议消息包括第二指示信息，所述第二指示信息用于触发所述定位服务器向所述第二接入网设备发送第三定位协议消息；所述接收模块802，还用于接收来自于所述定位服务器的所述第三定位协议消息。
可选地，作为一个实施例，所述第二指示信息用于指示如下至少之一：服务接入网设备发生改变，所述终端在RRC去激活态，需要重新发送所述第一定位协议消息。
可选地，作为一个实施例，所述第一指示信息包括如下1)和2)中的至少之一：
1)路由标识，所述路由标识用于查找所述定位服务器。
2)事务标识，所述事务标识包括所述第一定位协议消息的事务标识。
可选地，作为一个实施例，所述第二定位协议消息包括所述事务标识。
可选地，作为一个实施例，所述第二定位协议消息包括所述终端当前的服务小区的标识。
可选地，作为一个实施例，所述第二定位协议消息是错误指示消息。
根据本申请实施例的第二接入网设备800可以参照对应本申请实施例的方法300的流程，并且，该第二接入网设备800中的各个单元/模块和上述其他操作和/或功能分别为了实现方法300中的相应流程，并且能够达到相同或等同的技术效果，为了简洁，在此不再赘述。
图9是根据本申请实施例的定位服务器的结构示意图，如图9所示，定位服务器900包括如下模块。
发送模块902，用于向第一接入网设备发送相关于终端的第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息，所述终端处于RRC去激活态，所述第一接入网设备为保存所述 终端的RRC上下文信息的接入网设备。
接收模块904，用于接收对应于所述第一定位协议消息的失败消息；其中，所述失败消息是所述第一接入网设备在接收到来自于第二接入网设备的取回终端上下文请求消息的情况下发送的，和/或，接收第二接入网设备发送的第二定位协议消息，所述第二定位协议消息包括第二指示信息，所述第二指示信息用于触发所述定位服务器向所述第二接入网设备发送第三定位协议消息；其中，所述第二接入网设备是所述终端发起RRC恢复的目标接入网设备，所述第二定位协议消息是所述第二接入网设备在接收到来自于核心网设备的路径切换请求确认消息的情况下发送的。
本申请实施例提供的定位服务器，定位服务器向第一接入网设备发送相关于终端的第一定位协议消息，终端处于RRC去激活态，定位服务器接收对应于所述第一定位协议消息的失败消息；其中，所述失败消息是所述第一接入网设备在接收到来自于第二接入网设备的取回终端上下文请求消息的情况下发送的，和/或，所述定位服务器接收第二接入网设备发送的第二定位协议消息，所述第二定位协议消息包括第二指示信息，所述第二指示信息用于触发所述定位服务器向所述第二接入网设备发送第三定位协议消息，本申请实施例可以及时重新发起定位过程，降低定位时延。
可选地，作为一个实施例，所述失败消息包括延迟时间信息，所述发送模块902，还用于基于所述延迟时间信息，延迟向所述第二接入网设备发送第三定位协议消息。
可选地，作为一个实施例，所述发送模块902，还用于基于预定义的延迟时间信息，延迟向所述第二接入网设备发送第三定位协议消息。
可选地，作为一个实施例，所述发送模块902，用于在定时器超时的情况下，向所述第二接入网设备发送第三定位协议消息；其中，所述定位服务器还包括启动模块，用于在接收到所述失败消息的情况下，启动所述定时器，所述定时器的时长与所述延迟时间信息相关。
可选地，作为一个实施例，所述失败消息包括用于指示服务接入网设备发生改变的失败原因值。
可选地，作为一个实施例，所述第二指示信息用于指示如下至少之一：服务接入网设备发生改变，所述终端在RRC去激活态，需要重新发送所述第一定位协议消息。
可选地，作为一个实施例，所述第二定位协议消息满足如下1)至3)中的至少之一：
1)所述第二定位协议消息包括事务标识，所述事务标识包括所述第一定位协议消息的事务标识。
2)所述第二定位协议消息包括所述终端当前的服务小区的标识。
3)所述第二定位协议消息是错误指示消息。
根据本申请实施例的定位服务器900可以参照对应本申请实施例的方法400的流程，并且，该定位服务器900中的各个单元/模块和上述其他操作和/或功能分别为了实现方法400中的相应流程，并且能够达到相同或等同的技术效果，为了简洁，在此不再赘述。
可选的，如图10所示，本申请实施例还提供一种通信设备1000，包括处理器1001和存储器1002，存储器1002上存储有可在所述处理器1001上运行的程序或指令，例如，该通信设备1000为网络侧设备时，该程序或指令被处理器1001执行时实现上述定位方法实施例的各个步骤，且能达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供一种网络侧设备，包括处理器和通信接口，通信接口用于执行图2或图3所示的实施例的方法的步骤。该网络侧设备实施例与上述网络侧设备方法实施例对应，上述方法实施例的各个实施过程和实现方式均可适用于该网络侧设备实施例中，且能达到相同的技术效果。
具体地，本申请实施例还提供了一种网络侧设备(如第一接入网设备、第二接入网设备)。如图11所示，该网络侧设备1100包括：天线111、射频 装置112、基带装置113、处理器114和存储器115。天线111与射频装置112连接。在上行方向上，射频装置112通过天线111接收信息，将接收的信息发送给基带装置113进行处理。在下行方向上，基带装置113对要发送的信息进行处理，并发送给射频装置112，射频装置112对收到的信息进行处理后经过天线111发送出去。
以上实施例中网络侧设备执行的方法可以在基带装置113中实现，该基带装置113包括基带处理器。
基带装置113例如可以包括至少一个基带板，该基带板上设置有多个芯片，如图11所示，其中一个芯片例如为基带处理器，通过总线接口与存储器115连接，以调用存储器115中的程序，执行以上方法实施例中所示的网络设备操作。
该网络侧设备还可以包括网络接口116，该接口例如为通用公共无线接口(common public radio interface，CPRI)。
具体地，本发明实施例的网络侧设备1100还包括：存储在存储器115上并可在处理器114上运行的指令或程序，处理器114调用存储器115中的指令或程序执行图7或图8所示各模块执行的方法，并达到相同的技术效果，为避免重复，故不在此赘述。
本申请实施例还提供了一种网络侧设备(如定位服务器)。如图12所示，该网络侧设备1200包括：处理器1201、网络接口1202和存储器1203。其中，网络接口1202例如为通用公共无线接口(common public radio interface，CPRI)。
具体地，本发明实施例的网络侧设备1200还包括：存储在存储器1203上并可在处理器1201上运行的指令或程序，处理器1201调用存储器1203中的指令或程序执行图9所示各模块执行的方法，并达到相同的技术效果，为避免重复，故不在此赘述。
本申请实施例还提供一种可读存储介质，所述可读存储介质上存储有程 序或指令，该程序或指令被处理器执行时实现上述定位方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现上述定位方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现上述定位方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供了一种定位系统，包括：终端及网络侧设备，所述网络侧设备可用于执行如上所述的定位方法的步骤。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、 省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。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可以以计算机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(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (38)

  1. 一种定位方法，包括：
    第一接入网设备接收来自于定位服务器的相关于终端的第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息，所述终端处于无线资源控制RRC去激活态，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备；
    所述第一接入网设备在接收到来自于第二接入网设备的取回终端上下文请求消息的情况下，向所述定位服务器发送对应于所述第一定位协议消息的失败消息，和/或，所述第一接入网设备向第二接入网设备发送取回终端上下文响应消息，所述取回终端上下文响应消息包括第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了所述第一定位协议消息。
  2. 根据权利要求1所述的方法，其中，所述失败消息包括延迟时间信息，所述延迟时间信息用于所述定位服务器在接收到所述失败消息的情况下，基于所述延迟时间信息延迟向所述第二接入网设备发送第三定位协议消息。
  3. 根据权利要求1所述的方法，其中，所述第一指示信息包括如下至少之一：
    路由标识，所述路由标识用于查找所述定位服务器；
    事务标识，所述事务标识包括所述第一定位协议消息的事务标识。
  4. 根据权利要求1所述的方法，其中，所述失败消息包括用于指示服务接入网设备发生改变的失败原因值。
  5. 一种定位方法，包括：
    第二接入网设备接收来自于终端的RRC恢复请求消息；
    所述第二接入网设备向第一接入网设备发送取回终端上下文请求消息； 其中，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备；
    所述第二接入网设备接收来自于所述第一接入网设备的取回终端上下文响应消息，所述取回终端上下文响应消息包括第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息。
  6. 根据权利要求5所述的方法，其中，所述第二接入网设备接收来自于所述第一接入网设备的取回终端上下文响应消息之后，所述方法还包括：
    所述第二接入网设备向核心网设备发送路径切换请求消息；
    所述第二接入网设备在接收到来自于所述核心网设备的路径切换请求确认消息的情况下，基于所述第一指示信息向定位服务器发送第二定位协议消息，所述第二定位协议消息包括第二指示信息，所述第二指示信息用于触发所述定位服务器向所述第二接入网设备发送第三定位协议消息；
    所述第二接入网设备接收来自于所述定位服务器的所述第三定位协议消息。
  7. 根据权利要求6所述的方法，其中，所述第二指示信息用于指示如下至少之一：服务接入网设备发生改变，所述终端在RRC去激活态，需要重新发送所述第一定位协议消息。
  8. 根据权利要求6所述的方法，其中，所述第一指示信息包括如下至少之一：
    路由标识，所述路由标识用于查找所述定位服务器；
    事务标识，所述事务标识包括所述第一定位协议消息的事务标识。
  9. 根据权利要求8所述的方法，其中，所述第二定位协议消息包括所述 事务标识。
  10. 根据权利要求6所述的方法，其中，所述第二定位协议消息包括所述终端当前的服务小区的标识。
  11. 根据权利要求6所述的方法，其中，所述第二定位协议消息是错误指示消息。
  12. 一种定位方法，包括：
    定位服务器向第一接入网设备发送相关于终端的第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息，所述终端处于RRC去激活态，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备；
    所述定位服务器接收对应于所述第一定位协议消息的失败消息；其中，所述失败消息是所述第一接入网设备在接收到来自于第二接入网设备的取回终端上下文请求消息的情况下发送的，和/或，所述定位服务器接收第二接入网设备发送的第二定位协议消息，所述第二定位协议消息包括第二指示信息，所述第二指示信息用于触发所述定位服务器向所述第二接入网设备发送第三定位协议消息；其中，所述第二接入网设备是所述终端发起RRC恢复的目标接入网设备，所述第二定位协议消息是所述第二接入网设备在接收到来自于核心网设备的路径切换请求确认消息的情况下发送的。
  13. 根据权利要求12所述的方法，其中，所述失败消息包括延迟时间信息，所述定位服务器接收对应于所述第一定位协议消息的失败消息之后，所述方法还包括：
    所述定位服务器基于所述延迟时间信息，延迟向所述第二接入网设备发 送第三定位协议消息。
  14. 根据权利要求12所述的方法，其中，所述定位服务器接收对应于所述第一定位协议消息的失败消息之后，所述方法还包括：
    所述定位服务器基于预定义的延迟时间信息，延迟向所述第二接入网设备发送第三定位协议消息。
  15. 根据权利要求13或14所述的方法，其中，所述延迟向所述第二接入网设备发送第三定位协议消息包括：
    在定时器超时的情况下，向所述第二接入网设备发送第三定位协议消息；
    其中，所述方法还包括：所述定位服务器在接收到所述失败消息的情况下，启动所述定时器，所述定时器的时长与所述延迟时间信息相关。
  16. 根据权利要求12所述的方法，其中，所述失败消息包括用于指示服务接入网设备发生改变的失败原因值。
  17. 根据权利要求12所述的方法，其中，所述第二指示信息用于指示如下至少之一：服务接入网设备发生改变，所述终端在RRC去激活态，需要重新发送所述第一定位协议消息。
  18. 根据权利要求12所述的方法，其中，所述第二定位协议消息满足如下至少之一：
    所述第二定位协议消息包括事务标识，所述事务标识包括所述第一定位协议消息的事务标识；
    所述第二定位协议消息包括所述终端当前的服务小区的标识；
    所述第二定位协议消息是错误指示消息。
  19. 一种第一接入网设备，包括：
    接收模块，用于接收来自于定位服务器的相关于终端的第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息，所述终端处于RRC去激活态，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备；
    发送模块，用于在接收到来自于第二接入网设备的取回终端上下文请求消息的情况下，向所述定位服务器发送对应于所述第一定位协议消息的失败消息，和/或，向第二接入网设备发送取回终端上下文响应消息，所述取回终端上下文响应消息包括第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了所述第一定位协议消息。
  20. 根据权利要求19所述的第一接入网设备，其中，所述失败消息包括延迟时间信息，所述延迟时间信息用于所述定位服务器在接收到所述失败消息的情况下，基于所述延迟时间信息延迟向所述第二接入网设备发送第三定位协议消息。
  21. 根据权利要求19所述的第一接入网设备，其中，所述第一指示信息包括如下至少之一：
    路由标识，所述路由标识用于查找所述定位服务器；
    事务标识，所述事务标识包括所述第一定位协议消息的事务标识。
  22. 根据权利要求19所述的第一接入网设备，其中，所述失败消息包括用于指示服务接入网设备发生改变的失败原因值。
  23. 一种第二接入网设备，包括：
    接收模块，用于接收来自于终端的RRC恢复请求消息；
    发送模块，用于向第一接入网设备发送取回终端上下文请求消息；其中， 所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备；
    所述接收模块，还用于接收来自于所述第一接入网设备的取回终端上下文响应消息，所述取回终端上下文响应消息包括第一指示信息，所述第一指示信息用于指示所述第一接入网设备接收到了第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息。
  24. 根据权利要求23所述的第二接入网设备，其中，所述发送模块，还用于向核心网设备发送路径切换请求消息；在接收到来自于所述核心网设备的路径切换请求确认消息的情况下，基于所述第一指示信息向定位服务器发送第二定位协议消息，所述第二定位协议消息包括第二指示信息，所述第二指示信息用于触发所述定位服务器向所述第二接入网设备发送第三定位协议消息；
    所述接收模块，还用于接收来自于所述定位服务器的所述第三定位协议消息。
  25. 根据权利要求24所述的第二接入网设备，其中，所述第二指示信息用于指示如下至少之一：服务接入网设备发生改变，所述终端在RRC去激活态，需要重新发送所述第一定位协议消息。
  26. 根据权利要求24所述的第二接入网设备，其中，所述第一指示信息包括如下至少之一：
    路由标识，所述路由标识用于查找所述定位服务器；
    事务标识，所述事务标识包括所述第一定位协议消息的事务标识。
  27. 根据权利要求26所述的第二接入网设备，其中，所述第二定位协议消息包括所述事务标识。
  28. 根据权利要求24所述的第二接入网设备，其中，所述第二定位协议消息包括所述终端当前的服务小区的标识。
  29. 根据权利要求24所述的第二接入网设备，其中，所述第二定位协议消息是错误指示消息。
  30. 一种定位服务器，包括：
    发送模块，用于向第一接入网设备发送相关于终端的第一定位协议消息；其中，所述第一定位协议消息是定位服务器与接入网设备之间的通信协议的消息，所述终端处于RRC去激活态，所述第一接入网设备为保存所述终端的RRC上下文信息的接入网设备；
    接收模块，用于接收对应于所述第一定位协议消息的失败消息；其中，所述失败消息是所述第一接入网设备在接收到来自于第二接入网设备的取回终端上下文请求消息的情况下发送的，和/或，接收第二接入网设备发送的第二定位协议消息，所述第二定位协议消息包括第二指示信息，所述第二指示信息用于触发所述定位服务器向所述第二接入网设备发送第三定位协议消息；其中，所述第二接入网设备是所述终端发起RRC恢复的目标接入网设备，所述第二定位协议消息是所述第二接入网设备在接收到来自于核心网设备的路径切换请求确认消息的情况下发送的。
  31. 根据权利要求30所述的定位服务器，其中，所述失败消息包括延迟时间信息，所述发送模块，还用于基于所述延迟时间信息，延迟向所述第二接入网设备发送第三定位协议消息。
  32. 根据权利要求30所述的定位服务器，其中，所述发送模块，还用于基于预定义的延迟时间信息，延迟向所述第二接入网设备发送第三定位协议 消息。
  33. 根据权利要求31或32所述的定位服务器，其中，所述发送模块，用于在定时器超时的情况下，向所述第二接入网设备发送第三定位协议消息；
    其中，所述定位服务器还包括启动模块，用于在接收到所述失败消息的情况下，启动所述定时器，所述定时器的时长与所述延迟时间信息相关。
  34. 根据权利要求30所述的定位服务器，其中，所述失败消息包括用于指示服务接入网设备发生改变的失败原因值。
  35. 根据权利要求30所述的定位服务器，其中，所述第二指示信息用于指示如下至少之一：服务接入网设备发生改变，所述终端在RRC去激活态，需要重新发送所述第一定位协议消息。
  36. 根据权利要求30所述的定位服务器，其中，所述第二定位协议消息满足如下至少之一：
    所述第二定位协议消息包括事务标识，所述事务标识包括所述第一定位协议消息的事务标识；
    所述第二定位协议消息包括所述终端当前的服务小区的标识；
    所述第二定位协议消息是错误指示消息。
  37. 一种网络侧设备，包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1至18任一项所述的定位方法的步骤。
  38. 一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如权利要求1至18任一项所述的定位方法的步骤。
PCT/CN2022/142253 2021-12-28 2022-12-27 定位方法及网络侧设备 WO2023125510A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111631896.X 2021-12-28
CN202111631896.XA CN116367299A (zh) 2021-12-28 2021-12-28 定位方法及网络侧设备

Publications (1)

Publication Number Publication Date
WO2023125510A1 true WO2023125510A1 (zh) 2023-07-06

Family

ID=86915015

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/142253 WO2023125510A1 (zh) 2021-12-28 2022-12-27 定位方法及网络侧设备

Country Status (2)

Country Link
CN (1) CN116367299A (zh)
WO (1) WO2023125510A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019103462A1 (ko) * 2017-11-21 2019-05-31 엘지전자 주식회사 무선 통신 시스템에서의 서비스 요청 방법 및 이를 위한 장치
CN111586855A (zh) * 2019-02-15 2020-08-25 华为技术有限公司 信号传输的方法与装置
CN111836182A (zh) * 2019-04-10 2020-10-27 电信科学技术研究院有限公司 一种终端定位服务方法及装置
WO2021088065A1 (zh) * 2019-11-08 2021-05-14 华为技术有限公司 无线定位方法及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019103462A1 (ko) * 2017-11-21 2019-05-31 엘지전자 주식회사 무선 통신 시스템에서의 서비스 요청 방법 및 이를 위한 장치
CN111586855A (zh) * 2019-02-15 2020-08-25 华为技术有限公司 信号传输的方法与装置
CN111836182A (zh) * 2019-04-10 2020-10-27 电信科学技术研究院有限公司 一种终端定位服务方法及装置
WO2021088065A1 (zh) * 2019-11-08 2021-05-14 华为技术有限公司 无线定位方法及装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
FRAUNHOFER IIS, FRAUNHOFER HHI: "Considerations on positioning in RRC_INACTIVE mode.", 3GPP TSG RAN WG2 MEETING #115 ELECTRONIC, R2-2107149, 4 August 2021 (2021-08-04), XP052032248 *

Also Published As

Publication number Publication date
CN116367299A (zh) 2023-06-30

Similar Documents

Publication Publication Date Title
WO2019096274A1 (zh) 信号传输的方法和装置
JP7163980B2 (ja) 方法及びｕｅ
US11218925B2 (en) Data forwarding for inter-radio access technology wireless networks
WO2023051404A1 (zh) 数据订阅方法、装置及网元
WO2023125510A1 (zh) 定位方法及网络侧设备
CN114143701B9 (zh) 设备的查找和注册方法、网络侧设备
CN113810956B (zh) 切换多播业务的方法及设备
CN114071610B (zh) 切换方法、装置及相关设备
JP2023554486A (ja) セカンダリセルグループの制御方法、端末及びネットワーク側機器
WO2023098685A1 (zh) 终端定位方法、装置及网络侧设备
WO2023202518A1 (zh) 切换命令触发方法、设备及网络侧设备
WO2024017030A1 (zh) Cho配置更新方法及网络侧设备
WO2023208044A1 (zh) 小区切换方法、装置及网络侧设备
WO2023061289A1 (zh) 上行定位参考信号srs配置方法、装置和网络侧设备
WO2024017244A1 (zh) 信息发送方法、信息接收方法、装置及相关设备
WO2023056930A1 (zh) 多播业务处理方法、装置及网络设备
WO2024099156A1 (zh) 波束失败处理方法、设备及可读存储介质
WO2023056931A1 (zh) 多播业务处理方法、装置及网络设备
WO2023185929A1 (zh) 资源控制方法、装置、终端及网络侧设备
US20230111158A1 (en) Method and apparatus for suspending secondary cell group
WO2023241539A1 (zh) 波束指示方法、装置及终端
WO2023138494A1 (zh) Rrc重建立方法及装置、计算机可读存储介质
WO2023103942A1 (zh) 通信方法、装置、终端、网络设备及介质
US20230354263A1 (en) Data transmission method and apparatus, and network-side device
WO2023040905A1 (zh) 切换业务的方法、装置和网络设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22914763

Country of ref document: EP

Kind code of ref document: A1