WO2020001128A1 - 一种终端位置服务的确定方法、设备及可读存储介质 - Google Patents

一种终端位置服务的确定方法、设备及可读存储介质 Download PDF

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Publication number
WO2020001128A1
WO2020001128A1 PCT/CN2019/082331 CN2019082331W WO2020001128A1 WO 2020001128 A1 WO2020001128 A1 WO 2020001128A1 CN 2019082331 W CN2019082331 W CN 2019082331W WO 2020001128 A1 WO2020001128 A1 WO 2020001128A1
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amf
mme
location information
gmlc
location
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PCT/CN2019/082331
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English (en)
French (fr)
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艾明
侯云静
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电信科学技术研究院有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • 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
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/34—Selective release of ongoing connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/50—Connection management for emergency connections

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a method, a device, and a readable storage medium for determining a UE (User Equipment) (LC) (LoCation Services).
  • UE User Equipment
  • LC Cellular Cellular Cellular Cellular Cellular Network
  • the LCS architecture of an existing LTE (Long Term Evolution) network is shown in Figure 1.
  • the LCS client sends a location service request to the GMLC (Gateway Mobile Location Center).
  • the GMLC sends an MT-LR (Mobile Terminated-Location Request) to the network currently registered by the UE, that is, the MT-LR is sent to the MME (Mobility Management Entity) that serves the UE.
  • the MME triggers a specific positioning process (that is, selects an E-SMLC (Evolved Serving Mobile Location Centre) for the UE, and sends a positioning request to the E-SMLC.
  • the E-SMLC passes the LPP (LTE Positioning Protocol).
  • LTE positioning protocol completes the acquisition of UE location information, and feeds back the obtained location information to the MME), and feeds back the obtained location information to the GMLC.
  • LTE positioning protocol LTE positioning protocol
  • LCS is defined in 3GPP.TS23.501 Architecture, (including service-oriented architecture and point-to-point architecture).
  • Figure 2 shows a non-roaming architecture (service-oriented architecture) for positioning services.
  • Figure 3 shows a non-roaming architecture (point-to-point architecture) for positioning services.
  • Figures 2 and 3 are both an existing 5G network architecture that supports positioning services in non-roaming scenarios. The difference is that the point-to-point architecture can more intuitively reflect the connection between different network functions.
  • the external LCS client sends a location request to HGMLC (Home Gateway Mobile Location Center) in HPLMN (Home Public Land Mobile Network, Home Public Land Mobile Network), requesting the location of the target UE.
  • HGMLC Home Gateway Mobile Location Center
  • HPLMN Home Public Land Mobile Network, Home Public Land Mobile Network
  • the HGMLC verifies whether the LCS client is authorized to obtain the location information of the target UE and whether it provides the UE location to meet the UE privacy requirements.
  • HGMLC calls the Nudm_UEContextManagement_Get service operation from the UDM (Unified Data Management) of the target UE.
  • the message parameter is the GPSI (Generic Public Subscription Identifier) or SUPI (Subscription Permanent Identifier, contract static). Identifier).
  • the UDM returns the service AMF (Access and Mobility Management Function) address, and may also return the VGMLC (Visited Gateway Mobile Location Center, visit the gateway mobile location center) address and / or VPLMN (Visited Public Land and Mobile Network (Visit Public Land Mobile Network) address of LMF (Location Management Function).
  • the UDM may also return the privacy requirement of the target UE contract, for example, the requirement is not stored in the HGMLC.
  • the HGMLC can use the service provided by the NRF in the HPLMN and select the VGMLC in the VPLMN.
  • the HGMLC sends a location request to the VGMLC, and includes the AMF address, the target UE identifier (such as SUPI (Subscription Permanent Identifier)) in the request, the LMF address received in step 3, and any privacy requirements of the UE.
  • SUPI Subscribescription Permanent Identifier
  • the VGMLC determines the LMF in the VPLMN, and calls the Nlmf_ProvideLocation Request service operation to the LMF to send a location request to the LMF. If the VGMLC and LMF functions are set together, you can skip this step.
  • VGMLC can use the following methods to determine LMF: 1) If VGMLC, LMF and AMF are fully connected, VGMLC can determine LMF according to information such as LCS client type, VGMLC ID and so on. For example, an operator can configure LMFs in all VPLMNs in VGMLC. 2) If the AMF allows the use of some LMFs in the VPLMN, but not all LMFs, you can configure the LMFs allowed in each AMF in the VGMLC. The VGMLC can randomly or according to some criteria (such as QoS )) Select LMF. 3) The VGMLC uses the NRF service in the VPLMN to request the available LMFs in the VPLMN, and selects one of the LMFs returned by the NRF. 4) When the UE registers with the 5GS, the serving AMF selects an LMF and registers its own address and the address of the LMF into the UDM. The UDM can provide the LMF address to the HGMLC in step 3.
  • LCS client type For
  • HGMLC can decide or select LMF (for example, according to the VPLMN ID, AMF address), HGMLC can directly call the Nlmf_ProvideLocationRequest service operation to the LMF to forward the location request to the LMF.
  • LMF for example, according to the VPLMN ID, AMF address
  • the LMF calls the Namf_MT_EnableUEReachability Request service operation to the serving AMF to verify the reachability of the UE.
  • the AMF triggers a service request process to make the UE enter a connected state.
  • the AMF calls the Namf_MT_EnableUEReachabilityResponse service operation to the LMF to confirm to it that the UE is reachable.
  • the LMF interacts with the UE to verify the UE's privacy needs based on the privacy needs received from the HGMLC.
  • the LMF sends a location notification (Location Notification) by calling the AMF's Namf_Communication_N1N2MessageTransfer service operation.
  • the UE notifies the user that it has received a location request, and requests whether the user is allowed to provide location information.
  • the UE then returns a Location Notification Response (Location Notification) to the LMF, which carries an indication of whether the user is authorized to provide location information.
  • the AMF calls the Namf_Communication_N1MessageNotify service operation to the LMF, and sends a location notification reply message to the LMF.
  • the LMF calls the Namf_EventExposure_Subscribe service operation to the AMF to obtain the location information of the UE, and the message carries an immediate one-time notification flag (immediate one-time notification flag).
  • the serving AMF returns UE location information, such as the serving cell ID, to the LMF.
  • the LMF may perform one or more positioning processes (ie, a UE-assisted positioning process, or a network-assisted positioning process). If the UE assisted positioning process is performed, when the LMF sends a positioning message to the serving AMF (step 1 in the UE assisted positioning process), a routing identifier may be carried in the message, and the identifier is used to identify the LMF.
  • the AMF sends the identity to the UE via a NAS transmission message (step 3 of the UE-assisted positioning process).
  • the LMF returns location information to the LCS client through VGMLC and / or HGMLC.
  • FIG. 5 is a flowchart of the continuity of the location service LCS for emergency session switching from NG-RAN (see 3GPP.TS23.502 for details), where the so-called continuity of LCS service refers to when the UE location information is obtained
  • the service request arrives in a certain network (such as 5G)
  • the UE is performing a movement process to another network (such as 4G) (this movement can be an idle movement process or a connected state handover process).
  • the network should continue to perform a service request for the location information of the UE, and feed back the obtained location information of the UE to the requester.
  • the UE establishes a PDU (Protocol Data Unit) session for emergency services.
  • PDU Protocol Data Unit
  • the LRF (Location Retrieval Function) request source GMLC sends Namf_Location_ProvideLocation (SUPI or PEI, requested QoS, location request from the emergency service client indication) to the AMF, requesting the UE's current location.
  • the LRF entity is responsible for retrieving the location information of the UE that initiated the IMS emergency session.
  • step 2 the source AMF starts a location session to obtain the UE location.
  • the source AMF receives a request to switch the UE to the target cell, and the target cell is served by another AMF or MME.
  • step 6 The location session started in step 3 is terminated in step 6. If not, the source AMF terminates the location session immediately after the end of step 5.
  • step 3 the source AMF returns Namf_Location_ProvideLocationResponse (UE location, target node identifier) to the GMLC.
  • the source AMF calls Namf_Location_EventNotify (SUPI or PEI (Permanent Equipment Identifier, Static Device Identifier), GPSI (Generic Public Subscription Identifier, if available) to the GMLC, indicating that it is in progress Switched event type, target node identification).
  • Namf_Location_EventNotify SUPI or PEI (Permanent Equipment Identifier, Static Device Identifier), GPSI (Generic Public Subscription Identifier, if available) to the GMLC, indicating that it is in progress Switched event type, target node identification).
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • EPC Evolved Packet Core Network
  • target node such as MME
  • UE identification MSISDN (Mobile Subscriber international ISDN Number)
  • IMEI International Mobile Equipment
  • Identity International Mobile Equipment Identity
  • the target AMF calls Namf_Location_EventNotify (SUPI or PEI, GPSI (if available) to the GMLC, indicating the type of event being switched , Target node identification).
  • Namf_Location_EventNotify SUPI or PEI, GPSI (if available) to the GMLC, indicating the type of event being switched , Target node identification.
  • the LRF If the LRF needs to obtain the UE position after the handover, and the target side uses the control plane position, the LRF sends an MT-LR request through the target node.
  • the source side Before the handover occurs, if the source side receives a location service request (step 2), it continues to perform the positioning process while the handover is in progress. If the positioning process is completed when the handover is completed, the source side needs to notify the GMLC of the obtained location information and the identity of the target-side service node (such as the MME) (step 7a). If the positioning process is not completed when the handover is complete, the source side needs to terminate the process (step 6) and notify the GMLC that the location information and the identity of the target side service node cannot be obtained due to the handover. With the intervention of the LRF, the GMLC re-initiates the location service request (steps 9 and 10).
  • the interworking architecture (that is, the introduction of the N26 interface between the AMF and the MME) and the specific procedures for interworking are defined.
  • the interworking architecture is shown in Figure 6.
  • the N26 interface between the MME and the AMF in 5GS is optional.
  • the network can support the handover between the 5G and LTE networks.
  • the UE needs to pass between the MME and the AMF.
  • Context information including mobility context and session connection context.
  • the network may configure its registration mode as a single registration mode, that is, single registration mode.
  • the so-called single registration means that the UE can only register in one system (5GS or EPS) at any one time.
  • FIG. 7 a conventional handover from 5GS to EPS based on the N26 interface is shown in FIG. 7, where there is no related process of positioning services for the UE.
  • the process includes switching to EPC, establishing a default EPS bearer in the EPC, and establishing a dedicated bearer for QoS flows that guarantee the bit rate (steps 1-16), and re-negotiating QoS flows for non-guaranteed bit rates if needed.
  • the dedicated EPS bearer is activated (step 17). This process can be triggered by a new wireless environment, load balancing, the emergence of QoS flows for ordinary voice or IMS emergency voice.
  • the PDN Packet Data Network, Packet Data Network
  • SMF Session Management Function
  • the PDN connection will have a non-IP PDN type, but the UE and SMF will associate the PDU session type to Ethernet or unstructured.
  • the PGW-C + SMF provides the EPS bearer identification and mapped QoS parameters to the UE.
  • the V-SMF obtains the EPS bearer ID and the mapped QoS parameters from the H-SMF. The same applies to the operation of HPLMN in the interoperation process without N26 interface.
  • NG-RAN decides that the UE should be switched to E-UTRAN. If IMS voice falls due to QoS flow establishment, NG-RAN is configured to perform cross-RAT movement in this scenario.
  • NG-RAN receives a request to establish a QoS flow for IMS voice, NG-RAN rejects QoS flow establishment, and The N2SM information indicates that the cause is IMS voice fallback, and NG-RAN triggers a handover to E-UTRAN.
  • the NG-RAN sends a Handover Sequence to the AMF (target eNB identification, source-to-target transparent container, and cross-system handover indication).
  • NG-RAN indicates the bearer related to 5G QoS and Flow for data forwarding in the source-to-target transparent container.
  • NG-RAN can send an emergency instruction to the target eNB in the source-to-target transmission container, and the target eNB takes the received instruction into consideration when allocating radio bearer resources.
  • the AMF determines from the "target eNB identity" that the type of handover is a handover to E-UTRAN.
  • the AMF selects the MME according to TS23.401.
  • the AMF uses the Nsmf_PDUSession_ContextRequest to request the V-SMF for the SM context (including the mapped EPS bearer context) of each PDU session established within the 3GPP access.
  • the AMF provides the SMF with the target MME capabilities in this request, allowing the V-SMF to decide whether to include a non-IP PDN type EPS bearer context.
  • SMF provides non-IP PDN type SM context. This step is completed by all PGW-C + SMF configured to the UE to cover every PDU session of the UE.
  • the AMF can know whether the MME supports the non-IP PDN type according to the local configuration. In the hometown routing roaming scenario, the AMF obtains the SM EPS context of the UE from the V-SMF.
  • the AMF sends a Forward Relocation Request, as in step 2 of the S1-based handover procedure in TS23.401, and makes the following changes:
  • This parameter is an optional indication that when the subsequent access changes to the 5GS shared network, preferably, the UE returns to 5GS PLMN.
  • the message includes the SGW address and TEID carried by the control plane or EPS, so the target MME chooses a new SGW.
  • the AMF contains a direct forwarding flag to notify the target MME of the availability of indirect data forwarding.
  • the message contains the mapped SM EPS EPS UE context of the PDU session.
  • step 5 (handover request) in section 5.5.1.2.2 of TS23.401 (switching based on S1 interface, normal case). And made the following modifications:
  • the handover request may include handover restriction list information carrying PLMN ID information.
  • the AMF sends a Nsmf_PDUSession_UpdateSMContext request (the service SGW address and downlink TEID for data forwarding) to the PGW-C + SMF for creating an indirect data forwarding channel. If there are multiple PGW-C + SMF serving UEs, the AMF maps the EPS bearer used for data forwarding to the PGW-C + SMF address based on the association between the EPS bearer ID and the PDU session ID. In the hometown routing roaming scenario, the AMF requests V-SMF to create an indirect forwarding tunnel.
  • a Nsmf_PDUSession_UpdateSMContext request the service SGW address and downlink TEID for data forwarding
  • PGW-C + SMF can choose intermediate PGW-U + UPF for data forwarding.
  • PGW-C + SMF maps EPS bearers used for data forwarding to 5G QoS flows based on the association between EPS bearer ID and QFI, and sends QFI to PGW-U + UPF, SGW address and TEID for data forwarding. If the CN tunnel information used for data forwarding is allocated by PGW-C + SMF, the CN tunnel information is provided to PGW-U + UPF in this step, and PGW-U + UPF sends an ACK reply. If the CN tunnel information is allocated by PGW-U + UPF, the information is provided to PGW-C + SMF in the ACK reply message. In the hometown routing roaming scenario, V-SMF selects the V-UPF for data forwarding.
  • PGW-C + SMF returns Nsmf_PDUSession_UpdateSMContextResponse (reason, CN tunnel information for data forwarding, QoS flow for data forwarding) to create indirect data forwarding.
  • Nsmf_PDUSession_UpdateSMContextResponse (reason, CN tunnel information for data forwarding, QoS flow for data forwarding)
  • PGW-U + UPF maps the QoS flow to the data forwarding tunnel in the EPC.
  • the AMF sends a handover command (transparent container (the wireless parameter established by the target eNB during the preparation phase) to the source NG-RAN, CN tunnel information for data forwarding for each PDU session, and QoS flow for data forwarding).
  • the source NG-RAN instructs the UE to switch to the target access network by sending a handover command.
  • the UE associates the QoS Flow with the EPS bearer identity to be established included in the handover command. If the QoS flow associated with the default QoS rule in the PDU session is not assigned an EPS bearer ID, the UE deletes the PDU session locally.
  • the UE If the QoS flow associated with the default QoS rule is assigned an EPS bearer ID, the UE maintains the PDU session (PDN connection). For the remaining QoS flows that are not assigned an EPS bearer ID, the UE locally deletes the QoS rules related to these QoS flows. The UE deletes the QoS rules derived by all UEs.
  • the EPS bearer ID assigned to the QoS Flow of the default QoS rule of the PDU session becomes the EPS bearer ID of the default bearer of the corresponding PDN connection.
  • NG-RAN initiates data forwarding to PGW-U + UPF according to the CN tunnel information used for data forwarding in each PDU session. Then PGW-U + UPF sends the data received from the data forwarding tunnel in 5GS to the tunnel in EPS, and sends the data to the target eNB through the SGW.
  • the AMF sends a Relocation Complete ACK to the MME.
  • the AMF start timer is used to manage the time when resources in NG-RAN and PGW-C + SMF are released.
  • step 15 in section 5.5.1.2.2 of TS23.401 switching based on the S1 interface, normal case.
  • PGW-C + SMF deletes the PDU session. If the QoS flow related to the default QoS rule is assigned an EPS bearer ID, PGW-C + SMF reserves the PDU session (PDN connection). For other QoS flows that are not assigned an EPS bearer ID, PGW-C + SMF retains these PDUs. PCC rules related to QoS Flow.
  • PGW-C + SMF initiates a dedicated bearer activation process for these reserved PCC rules.
  • the IP flow of the deleted QoS rule will be mapped to the default EPS bearer. If the default QoS rule includes a packet filter, the IP flow in the deleted QoS Flow is interrupted until step 18 in section 5.5.1.2.2 of TS 23.401.
  • PGW-C + SMF initiates an N4 session modification process to UPF + PGW-U to update the user plane path.
  • step 16a Mode the bearer response
  • section 5.5.1.2.2 of TS23.401 switching based on the S1 interface, normal conditions.
  • the user plane path of the default bearer and the dedicated GBR bearer has been established between the UE, the target eNodeB, the SGW, and the PGW-U + UPF.
  • PGW-C + SMF uses the EPS QoS parameters allocated for the dedicated EPS GBR bearer.
  • PGW-C + SMF maps all other IP flows to the default EPS bearer.
  • step 17 in section 5.5.1.2.2 of TS23.401 switching based on S1 interface, normal case.
  • the UE initiates the TAU process, as described in section 5.3.3.3 of TS23.401.
  • the old AMF When the old AMF decides not to retain the registration of the UE in non-3GPP access, the old AMF cancels the subscription data update of its subscription by sending a Nudm_SDM_Unsubscribe service operation to the UDM, and releases all AMF and AN resources related to the UE.
  • PGW-C + SMF initiates a dedicated bearer activation process for non-GBR QoS Flow by mapping non-GBR Flow parameters to EPC QoS parameters. If PCC is deployed, this step can be triggered by PCRF + PCF. Please refer to section 5.4.1 of TS23.401 for this process. For Ethernet PDU session types, non-IP PDN types are used in the EPS, and this step is not required.
  • step 21 in section 5.5.1.2.2 of TS23.401 switching based on S1 interface, normal case.
  • step 12c If indirect forwarding is used, the timer expired by the AMF started in step 12c will trigger the AMF to call the Nsmf_PDUSession_UpdateSMContext Request service operation to instruct the V-SMF to release the forwarding tunnel, in order to release the temporary resources allocated for indirect forwarding in step 10.
  • V-SMF returns Nsmf_PDUSession_UpdateSMContextResponse message.
  • the embodiments of the present application provide a method, a device, and a readable storage medium for determining a terminal location service, which are used to implement the determination of the terminal location service in the 5GS-EPS interworking, thereby realizing the continuity of the location service.
  • an embodiment of the present application provides a method for determining a terminal location service, including:
  • the AMF access and mobility management function
  • MME mobile management entity
  • the AMF instructing the MME to perform a positioning process includes: the AMF sends a location service request from a core network to the MME through an N26 interface.
  • the ALF completes the location service request through a RELOCATION COMPLETE message completed by relocation.
  • the method further includes: the AMF translates the location service request into a Provide Subscriber that provides user location information Location message.
  • the method further includes: the AMF sends a visited gateway mobile positioning center (V-GMLC) identity to the MME, so that the MME sends a destination V-GMLC corresponding to the V-GMLC identity
  • V-GMLC visited gateway mobile positioning center
  • the method further includes: receiving, by the AMF, the MME sent by the MME through the N26 interface. Location information of the UE; the AMF sends the location information of the UE to an LCS client via the target V-GMLC.
  • an embodiment of the present application further provides a method for determining a terminal location service, including: during a UE handover from NG-RAN to E-UTRAN, if AMF needs a positioning process for the UE, or, if When the UE switches from NG-RAN to E-UTRAN, if the AMF is performing a positioning procedure for the UE, the MME receives an instruction to perform a positioning procedure from the AMF.
  • the receiving, by the MME, an instruction to perform a positioning process from the AMF includes: the MME receiving a location service request from a core network through an N26 interface.
  • the method further includes: the MME receives a Provide Subscriber Location message from the AMF that provides user location information through the N26 interface, The location information of the provided user is obtained by the AMF converting the location service request.
  • the method further includes: the MME receiving the V-GMLC identity sent by the AMF.
  • the method further includes: the MME sends the location service request to an evolved serving mobile location center (E-SMLC); The MME receives the location information of the UE returned by the E-SMLC.
  • E-SMLC evolved serving mobile location center
  • the method further includes: if the MME receives the V-GMLC identity sent by the AMF, the MME sends the location of the UE to a target V-GMLC corresponding to the V-GMLC identity Information, wherein the location information of the UE is location information obtained by the MME after the MME performs a positioning process on the UE.
  • the method further includes: the MME sends the location information of the UE to the AMF through an N26 interface .
  • an embodiment of the present application further provides a method for determining a terminal location service, including: during a UE handover from E-UTRAN to NG-RAN, if the MME needs a positioning process for the UE, or When the terminal UE is switched from E-UTRAN to NG-RAN, if the MME is performing a positioning process for the UE, the MME instructs the AMF to perform the positioning process.
  • the MME instructing the AMF to perform the positioning process includes: the MME sends a location service request from the core network to the AMF through an N26 interface.
  • the method further includes: receiving, by the MME, a Provide Subscriber Location message that provides user location information from a target V-GMLC and a V-GMLC identifier used to identify the target V-GMLC.
  • the method further includes: the MME sends a Subscriber Location Report Subscriber Location Report message to the target V-GMLC, wherein the subscriber location report message includes a message indicating that the MME cannot perform the UE to the UE.
  • the reason for positioning is a network switch; the MME sends an AMF address used to identify the AMF to the target V-GMLC, so that the target V-GMLC sends a location request message for the UE to the AMF .
  • the method further includes: the MME receives the location of the UE sent by the AMF through an N26 interface Information; the MME sends the location information of the UE to the LCS client via the target V-GMLC.
  • an embodiment of the present application further provides a method for determining a terminal location service, including: during a UE handover from E-UTRAN to NG-RAN, if the MME needs a positioning process for the UE, or, if When the terminal UE switches from E-UTRAN to NG-RAN, if the MME is performing a positioning procedure for the UE, the AMF receives an instruction to perform a positioning procedure from the MME.
  • the AMF receiving an instruction for performing a positioning process from the MME includes: the AMF receiving a location service request from a core network through an N26 interface.
  • the method further includes: receiving, by the AMF, a V-GMLC identity from the MME for identifying a target V-GMLC through an N26 interface.
  • the method further includes: the AMF sends the location service request to a location management function (LMF); the AMF receives the Location information of the UE returned by the LMF.
  • LMF location management function
  • the method further includes: the AMF sends the UE's location information.
  • the method further includes: the AMF sends the location information of the UE to all locations via an N26 interface. Mentioned MME.
  • an embodiment of the present application further provides an AMF device for determining a terminal location service, including: an indication unit, in a process in which a UE switches from NG-RAN to E-UTRAN, if the AMF device needs The positioning procedure of the UE is described, or if the AMF device is performing a positioning procedure for the UE when the UE switches from NG-RAN to E-UTRAN, the MME is instructed to perform the positioning procedure.
  • the indication unit is configured to send a location service request from the core network to the MME through an N26 interface.
  • the indication unit is configured to carry the location service request in a RELOCATION COMPLETE message completed through relocation.
  • the AMF device further includes: a conversion unit that converts the location service request into a location service request that provides user location information before the indication unit sends the location service request from the core network to the MME through the N26 interface.
  • a conversion unit that converts the location service request into a location service request that provides user location information before the indication unit sends the location service request from the core network to the MME through the N26 interface.
  • Provide Subscriber Location message Provide Subscriber Location message.
  • the AMF device further includes: a first sending unit that sends a V-GMLC identifier to the MME, so that the MME sends the UE to the target V-GMLC corresponding to the V-GMLC identifier. location information.
  • the AMF device further includes: a receiving unit, after the AMF device instructs the MME to perform a positioning process, after the MME obtains the location information of the UE, it receives the MME sent by the MME through the N26 interface. Location information of the UE;
  • the second sending unit sends the location information of the UE to the LCS client via the target V-GMLC.
  • an embodiment of the present application further provides an MME device for determining a terminal location service, including: a first receiving unit, in a process in which a terminal UE is switched from NG-RAN to E-UTRAN, if AMF needs to The positioning procedure of the UE is described, or if the terminal UE switches from NG-RAN to E-UTRAN, if the AMF is performing a positioning procedure for the UE, an instruction for performing a positioning procedure from the AMF is received.
  • the first receiving unit is configured to receive a location service request from a core network through an N26 interface.
  • the first receiving unit is further configured to receive a Provide Subscriber Location message from the AMF that provides user location information through the N26 interface, where the providing user location information is determined by the AMF to the location. Service request conversion.
  • the first receiving unit is further configured to receive a V-GMLC identifier sent by the AMF.
  • the MME device further includes a first sending unit that sends the location service request to the evolved serving mobile location center after the first receiving unit receives the location service request from the core network through the N26 interface ( E-SMLC); a second receiving unit, configured to receive location information of the UE returned by the E-SMLC.
  • a first sending unit that sends the location service request to the evolved serving mobile location center after the first receiving unit receives the location service request from the core network through the N26 interface ( E-SMLC); a second receiving unit, configured to receive location information of the UE returned by the E-SMLC.
  • E-SMLC N26 interface
  • the MME device further includes: a second sending unit, and if the first receiving unit receives the V-GMLC identifier sent by the AMF, the MME is configured to send a target V corresponding to the V-GMLC identifier.
  • -GMLC sends location information of the UE, wherein the location information of the UE is location information obtained by the MME after the MME performs a positioning process on the UE.
  • the MME device further includes: a third sending unit, configured to send the UE via the N26 interface. Location information to the AMF.
  • an embodiment of the present application further provides an MME device for determining a terminal location service, including: an indication unit, during a UE handover from E-UTRAN to NG-RAN, if the MME device needs to The positioning process of the UE is described, or if the terminal UE switches from E-UTRAN to NG-RAN, if the MME device is performing a positioning process for the UE, the AMF is instructed to perform the positioning process.
  • the indication unit is configured to send a location service request from the core network to the AMF through an N26 interface.
  • the MME device further includes: a first receiving unit, configured to receive a Provide Subscriber Location message that provides user location information from the target V-GMLC and a V-GMLC identifier used to identify the target V-GMLC.
  • a first receiving unit configured to receive a Provide Subscriber Location message that provides user location information from the target V-GMLC and a V-GMLC identifier used to identify the target V-GMLC.
  • the MME device further includes: a first sending unit, configured to send a Subscriber Location Report Subscriber Location Report message to the target V-GMLC, wherein the subscriber location report message includes a message indicating that the MME cannot The reason for positioning the UE is a network switch; the second sending unit sends an AMF address used to identify the AMF to the target V-GMLC, so that the target V-GMLC sends a target address to the AMF.
  • a location request message of the UE is a first sending unit, configured to send a Subscriber Location Report Subscriber Location Report message to the target V-GMLC, wherein the subscriber location report message includes a message indicating that the MME cannot The reason for positioning the UE is a network switch; the second sending unit sends an AMF address used to identify the AMF to the target V-GMLC, so that the target V-GMLC sends a target address to the AMF.
  • a location request message of the UE is a first sending unit, configured to send a Subscriber Location Report Subscriber Location Report
  • the MME device further includes: a second receiving unit, after the AMF performs a positioning process on the UE and obtains the location information of the UE, receives the AMF sent by the AMF through an N26 interface. Location information of the UE; a third sending unit sends the location information of the UE to the LCS client via the target V-GMLC.
  • an embodiment of the present application further provides an AMF device for determining a terminal location service, including: a first receiving unit, in a process in which a terminal UE is switched from E-UTRAN to NG-RAN, if the MME needs to The positioning procedure of the UE is described, or if the terminal UE switches from E-UTRAN to NG-RAN, if the MME is performing a positioning procedure for the UE, it receives an instruction to perform a positioning procedure from the MME.
  • the first receiving unit is configured to receive a location service request from a core network through an N26 interface.
  • the first receiving unit is further configured to receive a V-GMLC identifier from the MME for identifying a target V-GMLC through an N26 interface.
  • the AMF device further includes: a first sending unit for sending the location service request to the LMF; and a second receiving unit for receiving the location information of the UE returned by the LMF.
  • the AMF device further includes: a second sending unit, configured to send the location information of the UE to the target V-GMLC.
  • the AMF device further includes: a third sending unit, after the first receiving unit receives an instruction to perform a positioning process from the MME, and obtains the location information of the UE, sends the through the N26 interface The location information of the UE is sent to the MME.
  • an embodiment of the present application provides a computer device including a memory, a processor, and a computer program stored on the memory and executable on the processor.
  • the processor executes the computer program, Implement the steps of the method for determining a terminal location service as described above.
  • an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the steps of the method for determining a terminal location service as described above.
  • FIG. 1 is a schematic diagram of an LCS architecture of an existing LTE network
  • FIG. 2 is a schematic diagram of a non-roaming architecture (service-oriented architecture) of a positioning service in an existing 5G network;
  • FIG. 3 is a schematic diagram of a non-roaming architecture (point-to-point architecture) of a positioning service in an existing 5G network;
  • FIG. 4 is a schematic diagram of an MT-LR process in a 5G network on the premise that the existing UE is in a stationary state or no network switching occurs even if the UE moves;
  • FIG. 5 is a flowchart of location continuity of an existing emergency session handover from NG-RAN;
  • FIG. 6 is a schematic diagram of a network architecture supporting interoperation between a 5G network and an LTE network;
  • FIG. 7 is a schematic diagram of a switching process from 5GS to EPS based on an existing N26 interface
  • FIG. 8 is a flowchart of location continuity during a 5GC switch to EPC in an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a first implementation manner of a positioning process for a UE in a 5G network
  • FIG. 10 is a schematic diagram of a second implementation manner of a positioning process for a UE in a 5G network
  • FIG. 11 is a flowchart of reporting UE location information during a 5GC handover to EPC process according to an embodiment of the present application
  • FIG. 12 is a flowchart of position continuity during an EPC switch to 5GC in the embodiment of the present application.
  • 13 is a flowchart of reporting UE location information during an EPC handover to 5GC process according to an embodiment of the present application
  • FIG. 14 is a flowchart of a method after an AMF receives a location service request from a core network during an EPC switch to 5GC in an embodiment of the present application;
  • 15 is a schematic structural diagram of a device for determining a terminal location service according to an embodiment of the present application.
  • 16 is a schematic diagram of a non-roaming architecture (service-oriented architecture) of another positioning service in a 5G network; the difference from the architecture in FIG. 2 is that there is no LRF entity;
  • FIG. 17 is a schematic diagram of another non-roaming architecture (point-to-point architecture) of a positioning service in a 5G network; the difference from the architecture in FIG. 3 is that in the architecture of FIG. 17, the GMLC can directly interact with the LMF.
  • Embodiment 1 of the present application provides a method for determining a terminal location service.
  • AMF needs a positioning process for the UE, or If the terminal UE switches from NG-RAN to E-UTRAN, if the AMF is performing a positioning process for the UE, if the AMF is performing a positioning process for the UE, the AMF instructs the MME to perform positioning through the N26 interface. process.
  • the location information of the UE is obtained through the target side, that is, during the process of the 5G system switching to the 4G system, the source side instructs the target side to perform the positioning process for the UE. Not only the accuracy of the location information for the UE is guaranteed, but also the continuity of the LCS for the UE during the system handover process.
  • step A the AMF receives a location request message from the LMF (for example, triggered by the MT-LR location request process in 5GS; or by other processes such as the 5GC Network Induced Location Request (NI-LR) process , 5GC Mobile, Originated Location Request (MO-LR) process, etc.), where the location request message may be Namf_Communication_N1N2MessageTransfer, corresponding to the description in step 14 in FIG. 4, where the route identifier is used to identify the LMF. That is, the AMF is performing a positioning process for the UE.
  • NI-LR 5GC Network Induced Location Request
  • MO-LR Originated Location Request
  • step 2 NG-RAN initiates a handover. If the AMF receives a handover request from NG-RAN to E-UTRAN, the AMF instructs the MME to perform a positioning process for the UE. That is, during the positioning process performed by the AMF, when the NG-RAN needs to be switched to the E-UTRAN, the AMF instructs the MME to perform a positioning process for the UE. Alternatively, after receiving the handover request from the NG-RAN to the E-UTRAN, before the end of the handover process, the AMF receives the location request from the LMF and needs to initiate a positioning process. At this time, the AMF instructs the MME to perform the positioning process for the UE through the N26 interface. That is, during the handover of NG-RAN to E-UTRAN, the AMF receives a location request, and the AMF instructs the MME to perform a positioning process for the UE.
  • the positioning process in step 14 in FIG. 4 and the positioning process for the UE in the 5G network can be implemented in the following two ways.
  • the first implementation manner is shown in FIG. 9, which is specifically a UE-assisted and UE-based positioning process, and specifically includes the following steps:
  • the LMF calls the Namf_Communication_N1N2MessageTransfer service operation to the AMF, and requests to send a DL Positioning message to the UE.
  • the Session ID parameter of Namf_Communication_N1N2MessageTransfer is set to the LCS association identifier.
  • the DL Positioning message may request location information from the UE, provide auxiliary information to the UE, or request UE capabilities.
  • the AMF initiates a network-triggered service request process and establishes a signaling connection to the UE.
  • the AMF sends a DL NAS TRANSPORT (DL Positioning message, routing identifier) to the UE.
  • the routing identifier identifies the LMF.
  • the UE stores the auxiliary data in the DL Positioning message, and performs positioning measurement and position calculation.
  • the UE If the UE enters CM-IDLE in step 4, the UE initiates a service request process triggered by the UE and establishes a signaling connection to the AMF.
  • the UE returns the location information obtained in step 4, and returns the capability information according to the request in step 3.
  • the UE sends a UL NAS TRANSPORT (Uplink Positioning message, routing identifier) to the AMF.
  • the routing identifier is the identifier received by the UE in step 3.
  • the AMF calls Namf_Communication_N1MessageNotify (Uplink Positioning message, LCS association identifier) to the LMF according to the routing identifier.
  • Namf_Communication_N1MessageNotify Uplink Positioning message, LCS association identifier
  • FIG. 10 is specifically a network-assisted positioning process, and specifically includes the following steps:
  • the LMF calls Namf_Communication_N1N2MessageTransfer (Network Positioning message, LCS association identifier) to the AMF, and requests to send a Network Positioning message to the NG-RAN connected to the UE, which is used to request the UE location information from the NG-RAN.
  • Namf_Communication_N1N2MessageTransfer Network Positioning message, LCS association identifier
  • the AMF initiates a network-triggered service request process and establishes a signaling connection to the UE.
  • the AMF sends an N2Transport (Network Positioning message, routing identifier) to the serving NG-RAN.
  • the routing identifier identifies the LMF (e.g. LMF's global address).
  • the serving NG-RAN node obtains UE location information.
  • the serving NG-RAN node returns an N2Transport (Network Positioning message, routing identifier) to the AMF.
  • N2Transport Network Positioning message, routing identifier
  • the AMF calls Namf_Communication_N2InfoNotify (Network Positioning message, LCS association identifier) to the LMF.
  • Namf_Communication_N2InfoNotify Network Positioning message, LCS association identifier
  • the AMF termination positioning process is implemented through steps 3 and 4. Specifically, in step 3, the AMF sends a NOTIFY message to the LMF, indicating that the handover is performed and the address of the target MME. Then, in step 4, the LMF sends a NOTIFY message to the V-GMLC, stating that the handover is performed and the address of the target MME. In addition, the AMF ignores messages received from the UE or NG-RAN during the positioning process.
  • step 5 the AMF instructs the MME to perform a positioning process through the N26 interface, specifically: the AMF sends a location service request received in the core network to the core through the N26 interface MME.
  • the AMF in order to reduce signaling interaction, the AMF carries the location service request through a RELOCATION COMPLETE message completed by relocation.
  • the AMF sends the positioning request message received in step 1 to the MME.
  • the positioning request message refers to the sections 4.13.5.4 and 4.13.5.5 in TS 23.502 [5].
  • the AMF receives the message that activates the Namf_Communication_N1N2MessageTransfer service.
  • the AMF needs to be converted into a "Provide Subscriber Location" that the MME can recognize. Message. (See step 2 of 9.1.15 in TS23.271 for details). And place it in the message in step 12d in Figure 1-1, and bring it to the MME.
  • the positioning request message may also be a message received by the AMF from the GMLC to activate the Namf_Location_ProvideLocation service in sections 4.13.5.1, 4.13.5.2, 4.13.5.7 in TS 23.502 [5].
  • step 6 is performed.
  • the MME After the MME receives the location service request, the MME sends the location service request to the E-SMLC, the E-SMLC initiates the positioning process, and then the E-SMLC returns the location response message of the UE to the MME.
  • the MME thus obtains the location information of the UE.
  • the method further includes: the AMF sends a visited V-GMLC identifier to the MME, so that the MME The MME sends the location information of the UE to the target V-GMLC corresponding to the V-GMLC identifier.
  • the V-GMLC identifier may be in the form of a V-GMLC address, a V-GMLC name, or the like.
  • the MME initiates a positioning process in the EPS system after receiving an instruction to perform a positioning process from the AMF.
  • the MME sends the location information of the UE to the target V-GMLC corresponding to the identity, thereby realizing the reporting of the location information of the UE.
  • the V-GMLC identifier may be specifically informed by the LMF in step 1 to the AMF, and then the AMF is sent to the MME in step 5.
  • the reporting process shown in FIG. 11 may also be adopted. Specifically, the steps : The AMF instructs the MME to perform a positioning process, and after the MME obtains location information of the UE, the method further includes:
  • the AMF receives location information of the UE sent by the MME through the N26 interface;
  • the AMF sends location information of the UE to an LCS client via the target V-GMLC.
  • the MME After the MME obtains the location information of the UE, the MME sends the location information of the UE to the AMF of the 5GS system through the N26 interface, so that the AMF sends the location information of the UE to the target V-GMLC. After the target V-GMLC receives the location information of the UE The target V-GMLC sends location information of the UE to an LCS client (LCS CLIENT).
  • the AMF of the 5GS system can also send the UE's location information to the LMF (refer to the architectures in Figures 16 and 17 for the service-oriented architecture and point-to-point architecture under the non-roaming architecture of another positioning service in the 5G network, respectively). (Point architecture), where the main difference between the architecture in FIG.
  • the GMLC 16 and the architecture in FIG. 2 is that there is no LRF entity, and the difference between the architecture in FIG. 17 and the architecture in FIG. 3 is that the GMLC can directly interact with the LMF. Then the LMF sends it to the target V-GMLC, and the V-GMLC sends the location information of the UE to the LCS CLIENT, thereby realizing the reporting of the UE location information in the 5GS system. That is, after the target MME obtains the location information of the UE, the location information of the UE can be reported in the EPS system, and the location information of the UE can also be reported in the 5GS system.
  • the second embodiment of the present application also provides a method for determining a terminal location service, which includes: during the handover of the terminal UE from NG-RAN to E-UTRAN, if AMF needs to The positioning process of the UE, or if the terminal UE switches from NG-RAN to E-UTRAN, if the AMF is performing a positioning process for the UE, the MME receives an instruction to perform the positioning process from the AMF.
  • the target side receives an instruction from the source side to perform the positioning process for the UE, so that the target side implements the positioning process for the UE, which not only ensures the acquisition of the location information for the UE Accuracy, and ensure the continuity of the LCS for the UE during the system handover process.
  • the MME receiving an instruction for performing a positioning process from the AMF includes: the MME receiving a location service request from a core network through an N26 interface.
  • the method further includes: the MME receives the location of the provided user from the AMF through the N26 interface.
  • the method further includes: the MME receiving the visited gateway mobile positioning center V-GMLC identifier sent by the AMF.
  • the method further includes: the MME sends the location service request to an E-SMLC; the MME receives the Location information of the UE returned by the E-SMLC.
  • the method further includes: if the MME receives the V-GMLC identifier sent by the AMF, the MME sends the V-GMLC to a target V-GMLC corresponding to the V-GMLC identifier.
  • the location information of the UE where the location information of the UE is the location information obtained by the MME after the MME performs a positioning process on the UE.
  • the method further includes: the MME sends the location information of the UE through an N26 interface to The AMF.
  • the source side in the process of NG-RAN switching to E-UTRAN, the source side sends a location service request from the core network to the target side through the N26 interface, so that the target side can locate the UE location information, and further The continuity of LCS location service is realized during the handover process.
  • the third embodiment of the present application also provides a method for determining a terminal location service during the E-UTRAN to NG-RAN process. Specifically, the UE is switched from the E-UTRAN to the NG-RAN process. If the MME needs a positioning process for the UE, or if the UE switches from E-UTRAN to NG-RAN, if the MME is performing a positioning process for the UE, the MME instructs the AMF to perform the positioning process.
  • the location information of the UE is obtained through the target side, that is, during the process of switching from the 4G system to the 5G system, the source side instructs the target side to perform the positioning process for the UE. Not only the accuracy of the location information for the UE is guaranteed, but also the continuity of the LCS for the UE during the system handover process.
  • the MME instructs the AMF to perform a positioning process.
  • the MME may send a location service request from the core network to the AMF through the N26 interface.
  • step A the MME receives a Provide Subscriber Location message from the target V-GMLC, which provides a user location message. Then, step 1b is performed: the MME selects an E-SMLC, and then sends a Location Request message.
  • the MME knows the addresses of VGMLC and E-SMLC. That is, in addition to receiving a Provide Location message from a target V-GMLC that provides a user location message, the MME also receives a V-GMLC identifier for identifying the target V-GMLC. In this way, after receiving the instruction to perform the positioning process from the MME, the AMF initiates positioning in the 5GS system.
  • steps 1a and 1b here correspond to steps 2 and 6 of section 9.1.15 in TS23.271.
  • the E-SMLC initiates the positioning process, corresponding to step 7 of section 9.1.15 in TS23.271.
  • step 2 the MME receives a handover request from E-UTRAN to NG-RAN, and at this time the positioning process in A has not returned a result. That is, the message in step 8 corresponding to section 9.1.15 in TS23.271 is not delivered to the MME. Or, after receiving the handover request from the E-UTRAN to the NG-RAN, the MME is performing the handover process and is not completed, and the MME receives a Provide Subscriber Location message from the target V-GMLC that provides the user location message. At this time, the MME does not initiate the positioning process to the E-SMLC, but performs step 4.
  • the MME when the MME performs the positioning process, when the E-UTRAN needs to be switched to the NG-RAN, the MME instructs the AMF to perform the positioning process for the UE. Or alternatively, during the handover of the E-UTRAN to the NG-RAN, the MME receives a location request, and the MME instructs the AMF to perform a positioning process for the UE.
  • Step C The MME terminates the positioning process.
  • Step 3. The E-SMLC is notified to terminate the positioning process. This step is optional.
  • Step 4 The MME sends a Subscriber Location Report to the target V-GMLC, which contains an error code, indicating that the reason that the positioning cannot be performed is the handover.
  • the MME sends the AMF address used to identify the AMF to the target V-GMLC.
  • the target V-GMLC sends a location request message for the UE to the AMF identified by the AMF address.
  • the step is that the MME instructs the AMF to perform the positioning process through the N26 interface.
  • the MME may send the location service request received in the core network to the AMF.
  • step D step 5
  • the MME sends the location service request received in step 1a to the AMF through the N26 interface.
  • step 6 the AMF selects an LMF, and sends the received location request message to the LMF.
  • Step F is the 14th step in FIG. 4, the UE positioning process.
  • Step 7 The LMF initiates the positioning process.
  • Step G and step H are the reporting process after obtaining the location information, and one of them can be selected and executed.
  • the EPS system can report the location information of the UE, as shown in FIG. 13, including:
  • the MME receives the location information of the UE sent by the AMF through an N26 interface
  • the MME sends location information of the UE to an LCS client via the target V-GMLC.
  • the target AMF After the target AMF performs the positioning process for the UE and obtains the location information of the UE, the target AMF sends the location information of the UE to the MME through the N26 interface. Then, the MME sends the location information of the UE to the target V-GMLC, and the target V-GMLC award sends the location information of the UE to LCS CLIENT, thereby realizing the process of 5GS switching to the EPS system, Report the location information of the UE through the EPS system. Further, the location continuity of the location service LCS is achieved during the 5GS switching to the EPS system.
  • Embodiment 4 of the present application further provides a method for determining a terminal location service, including: during a UE handover from E-UTRAN to NG-RAN, if the MME needs to target the UE Or if the MME is performing a positioning procedure for the UE when the UE is switched from E-UTRAN to NG-RAN, the AMF receives an instruction to perform the positioning procedure from the MME.
  • the target side receives an instruction from the source side to perform the positioning process, so that the target side implements the positioning process for the UE, which not only ensures the accuracy of the location information for the UE, Moreover, the continuity of the LCS for the UE during the system handover is guaranteed.
  • the AMF receiving an instruction for performing a positioning process from the MME includes: the AMF receiving a location service request from a core network through an N26 interface.
  • the method further includes: the AMF receives a V-GMLC identifier from the MME for identifying the target V-GMLC through the N26 interface, so that the target V-GMLC sends to the AMF A location request message for the UE.
  • the method further includes:
  • the AMF receives location information of the UE returned by the LMF.
  • the method further includes: the AMF sends the target V-GMLC Sending location information of the UE.
  • the method further includes: the AMF sends the UE through an N26 interface The location information to the MME.
  • the fifth embodiment of the present application further provides an AMF device for determining a terminal location service, including:
  • Indication unit if the AMF device needs a positioning procedure for the UE during the UE switching from NG-RAN to E-UTRAN, or if the UE switches from NG-RAN to E-UTRAN, if the The AMF device is performing a positioning process for the UE, and instructs the MME to perform the positioning process.
  • the indication unit is configured to send a location service request from the core network to the MME through an N26 interface.
  • the indication unit is configured to carry the location service request in a RELOCATION COMPLETE message completed through relocation.
  • the AMF device further includes a conversion unit that converts the location service request into a provision user before the instruction unit sends the location service request from the core network to the MME through the N26 interface.
  • a conversion unit that converts the location service request into a provision user before the instruction unit sends the location service request from the core network to the MME through the N26 interface.
  • the AMF device further includes: a first sending unit that sends a V-GMLC identifier to the MME, so that the MME sends an address to a target V-GMLC corresponding to the V-GMLC identifier.
  • the location information of the UE wherein the location information of the UE is obtained by instructing the MME to perform a positioning process in the AMF.
  • the AMF device further includes: a receiving unit, after the AMF device instructs the MME to perform a positioning process, after the MME obtains the location information of the UE, the MME receives the through the N26 interface.
  • the sixth embodiment of the present application further provides an AMF device for determining a terminal UE's location service LCS, which includes: a first receiving unit that switches from NG-RAN to E-UTRAN at the UE In the process, if the AMF needs a positioning process for the UE, or if the AMF is performing a positioning process for the UE when the UE switches from NG-RAN to E-UTRAN, it receives the positioning performed by the AMF. Process instructions.
  • the first receiving unit is configured to receive a location service request from a core network through an N26 interface.
  • the first receiving unit is further configured to receive a Provide Subscriber Location message from the AMF that provides user location information through an N26 interface, where the providing user location information is provided by the AMF pair.
  • the location service request is converted.
  • the first receiving unit is further configured to receive a visiting gateway mobile positioning center V-GMLC identifier sent by the AMF.
  • the MME device further includes a first sending unit that sends the location service request to the E-SMLC after the first receiving unit receives the location service request from the core network through the N26 interface; A second receiving unit, configured to receive position information of the UE returned by the E-SMLC.
  • the MME device further includes a second sending unit, and if the first receiving unit receives the V-GMLC identifier sent by the AMF, it is configured to correspond to the V-GMLC identifier.
  • the target V-GMLC sends the location information of the UE, where the location information of the UE is the location information obtained by the MME after the MME performs a positioning process on the UE.
  • the MME device after the MME device performs a positioning process on the UE and obtains location information of the UE, the MME device further includes: a third sending unit, configured to send all addresses through an N26 interface. The location information of the UE to the AMF.
  • the seventh embodiment of the present application further provides an MME device for determining the location service of the terminal, including: an indication unit, in the process of the UE switching from E-UTRAN to NG-RAN, if The MME device needs a positioning process for the UE, or if the UE switches from E-UTRAN to NG-RAN, if the MME device is performing a positioning process for the UE, instruct the AMF to perform a positioning process.
  • the instruction unit is configured to send a location service request from the core network to the AMF through an N26 interface.
  • the MME device further includes: a first receiving unit, configured to receive a Provide Subscriber Location message that provides user location information from the target V-GMLC and a V-GM for identifying the target V-GMLC. GMLC logo.
  • the MME device further includes: a first sending unit, configured to send a Subscriber Location Report Subscriber Location Report message to the target V-GMLC, where the subscriber location report message includes The reason that the MME cannot locate the UE is a network switch; the second sending unit sends an AMF address used to identify the AMF to the target V-GMLC, so that the target V-GMLC sends the target V-GMLC to the The AMF sends a location request message for the UE.
  • a first sending unit configured to send a Subscriber Location Report Subscriber Location Report message to the target V-GMLC, where the subscriber location report message includes The reason that the MME cannot locate the UE is a network switch
  • the second sending unit sends an AMF address used to identify the AMF to the target V-GMLC, so that the target V-GMLC sends the target V-GMLC to the The AMF sends a location request message for the UE.
  • the MME device further includes: a second receiving unit that receives the AMF transmission through the N26 interface after the AMF performs a positioning process on the UE and obtains location information of the UE. Location information of the UE; a third sending unit sends the location information of the UE to an LCS client via the target V-GMLC.
  • the eighth embodiment of the present application further provides an AMF device for determining the location service of the terminal, including: a first receiving unit, during a UE handover from E-UTRAN to NG-RAN If the MME needs a positioning process for the UE, or if the UE switches from E-UTRAN to NG-RAN, if the MME is performing a positioning process for the UE, it receives an instruction to perform a positioning process from the MME.
  • the first receiving unit is configured to receive a location service request from a core network through an N26 interface.
  • the first receiving unit is further configured to receive a V-GMLC identifier from the MME for identifying a target V-GMLC through an N26 interface.
  • the AMF device further includes: a first sending unit for sending the location service request to the LMF; and a second receiving unit for receiving the location information of the UE returned by the LMF.
  • the AMF device further includes: a second sending unit, configured to send the location information of the UE to the target V-GMLC.
  • the AMF device further includes: a third sending unit, after the first receiving unit receives an instruction to perform a positioning process from the MME, and obtains location information of the UE, through an N26 interface Sending the location information of the UE to the MME.
  • Embodiment 9 of the present application further provides a device for determining a location service of a terminal, which includes a memory 10, a processor 20, and stored in the memory 10 and can be stored in A computer program running on a processor 20 that, when executing the computer program, implements the steps of a method for determining a UE Location Service (LCS) as described above.
  • a device for determining a location service of a terminal which includes a memory 10, a processor 20, and stored in the memory 10 and can be stored in A computer program running on a processor 20 that, when executing the computer program, implements the steps of a method for determining a UE Location Service (LCS) as described above.
  • LCS UE Location Service
  • the ninth embodiment of the present application further provides a readable storage medium on which a computer program is stored.
  • the computer program is executed by a processor, the UE is implemented as described above. How to determine location information.
  • this application may be provided as a method, a system, or a computer program product. Therefore, this application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, this application may take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) containing computer-usable program code.
  • computer-usable storage media including, but not limited to, magnetic disk storage, optical storage, and the like
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a specific manner such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction device, the instructions
  • the device implements the functions specified in one or more flowcharts and / or one or more blocks of the block diagram.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of steps can be performed on the computer or other programmable device to produce a computer-implemented process, which can be executed on the computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

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Abstract

本申请公开了一种终端UE位置服务LCS的确定方法、设备及可读存储介质，其中，所述方法包括：在终端UE由下一代无线接入网络NG-RAN切换至演进的统一陆地无线接入网络E-UTRAN过程中，若接入和移动性管理功能AMF需要针对所述UE的定位过程，或者，若在终端UE由下一代无线接入网络NG-RAN切换至演进的统一陆地无线接入网络E-UTRAN时，若接入和移动性管理功能AMF正在执行针对所述UE的定位过程，则所述AMF指示移动管理实体MME进行定位过程。用于实现在5GS-EPS互通中，对终端UE位置服务LCS的确定，进而实现LCS位置服务的连续性。

Description

一种终端位置服务的确定方法、设备及可读存储介质
本申请要求在2018年6月25日提交中国专利局、申请号为201810664734.8、发明名称为“一种终端UE位置服务LCS的确定方法、设备及可读存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，特别涉及一种UE(User Equipment，终端，也称用户设备)LCS(LoCation Services，位置服务)的确定方法、设备及可读存储介质。
背景技术
现有LTE(Long Term Evolution，长期演进)网络的LCS架构如图1所示，在该架构中，针对LTE网络，LCS客户端将位置服务请求发送给GMLC(Gateway Mobile Location Centre，网关移动位置中心)，由GMLC向UE当前注册的网络发送MT-LR(Mobile Terminated-Location Request，移动终止的位置请求)，即将MT-LR发送给为UE服务MME(Mobility Management Entity，移动性管理实体)，由MME触发具体的定位过程(即，为UE选择1个E-SMLC(Evolved Serving Mobile Location Centre，演进的服务移动位置中心)，并发送定位请求给E-SMLC，E-SMLC通过LPP(LTE Positioning Protocol，LTE定位协议)协议，完成UE位置信息的获取，并将获得的位置信息反馈给MME)，并将获得的位置信息，反馈给GMLC。具体过程参见3GPP.TS23.271的节9.1.15。
在5G(5-Generation，第五代移动通信技术)系统中，针对管制业务(即基于IMS(IP Multimedia Subsystem，IP多媒体子系统)的紧急呼叫业务)，在3GPP.TS23.501中定义了LCS架构，(包括服务化架构和点到点的架构)。如图2所示为定位业务的非漫游架构(服务化架构)。如图3所示为定位业务的非漫游架构(点到点架构)。图2和图3均为现有5G网络中的一种在非漫游场景下支持定位业务的架构，区别在于，点到点架构能够更直观地体现出不同网络功能之间的连接方式。
在UE处于静止态或者发生移动但不会导致发生网络切换的前提下的5G网络中的MT-LR过程如图4所示。图中各步骤如下：
1、外部LCS客户端向HPLMN(Home Public Land Mobile Network，家乡公共陆地移动网络)内的HGMLC(Home Gateway Mobile Location Centre，家乡网关移动位置中心)发送位置请求，请求目标UE的位置。HGMLC验证LCS客户端是否被授权获取目标UE的位置信息，以及向其提供UE位置是否满足UE隐私需求。
2、HGMLC向目标UE的家乡UDM(Unified Data Management，统一数据管理)调用Nudm_UEContextManagement_Get服务操作，消息参数为UE的GPSI(Generic Public Subscription Identifier，通用公共签约标识符)或SUPI(Subscription Permanent Identifier，签约静态标识符)。
3、UDM返回服务AMF(Access and Mobility Management Function，接入和移动性管理功能)地址，还可能返回VGMLC(Visited Gateway Mobile Location Centre，拜访网关移 动位置中心)地址和/或VPLMN(Visited Public Land Mobile Network，拜访公共陆地移动网络)内的LMF(Location Management Function，位置管理功能)的地址。UDM还可能返回目标UE签约的隐私需求，例如该需求未在HGMLC中存储。
4、如果步骤3未返回VGMLC地址，HGMLC可使用HPLMN内的NRF提供的服务，选择VPLMN内的VGMLC。HGMLC向VGMLC发送位置请求，并在请求中包括AMF地址，目标UE标识(例如SUPI(Subscription Permanent Identifier，签约静态标识符))，在步骤3接收到的LMF地址和UE的任何隐私需求。
5、VGMLC决定VPLMN内的LMF，并向LMF调用Nlmf_ProvideLocation Request服务操作，以将位置请求发送给LMF。如果VGMLC和LMF功能合设，则可跳过本步骤。
说明：VGMLC可使用下述方式决定LMF：1)如果VGMLC，LMF和AMF是全连接的，则VGMLC可根据LCS客户端类型，VGMLC ID等信息决定LMF。例如，运营商可在VGMLC中配置所有VPLMN内的LMF。2)如果AMF允许使用VPLMN内的部分LMF，而不是所有的LMF，则可在VGMLC中配置允许每个AMF使用的LMF，VGMLC可随机或根据某些准则(例如QoS(Quality of Service，服务质量))选择LMF。3)VGMLC使用VPLMN内的NRF服务请求VPLMN内的可用LMF，并从NRF返回的LMF中选择一个。4)当UE注册到5GS时，服务AMF选择一个LMF，并将自身的地址以及LMF的地址注册到UDM中。UDM可在步骤3向HGMLC提供LMF地址。
6、作为步骤4和5的优化替代方案，如果HGMLC可决定或选择LMF(例如根据VPLMN标识，AMF地址)，HGMLC可直接向LMF调用Nlmf_ProvideLocation Request服务操作，将位置请求转发给LMF。
7、LMF向服务AMF调用Namf_MT_EnableUEReachability Request服务操作，以验证UE的可达性。
8、如果UE当前处于空闲态，而且UE可达，则AMF触发业务请求过程，以使UE进入连接态。
9、AMF向LMF调用Namf_MT_EnableUEReachability Response服务操作，以向其确认UE可达。
10、LMF根据从HGMLC接收到的隐私需求，与UE交互验证UE的隐私需求。LMF通过调用AMF的Namf_Communication_N1N2MessageTransfer服务操作，发送位置通知(Location Notification)。
11、UE向用户通知其接收到位置请求，请求用户是否允许提供位置信息。然后UE向LMF返回位置通知回复(Location Notification response)，该消息携带用户是否授权提供位置信息的指示。AMF向LMF调用Namf_Communication_N1MessageNotify服务操作，将位置通知回复消息发送给LMF。
12、如果LMF在执行定位之前需要获取UE的服务小区的信息，而且LMF希望从服务AMF获取该信息，而不是由UE或NG-RAN(Next Generation Radio Access Network，下一代无线接入网络)提供，则LMF向AMF调用Namf_EventExposure_Subscribe服务操作，以获取UE的位置信息，消息中携带立即一次性通知标记(immediate one time notification flag)。
13、服务AMF向LMF返回UE位置信息，例如服务小区ID。
14、LMF可执行一个或多个定位过程(即UE辅助定位过程，或网络辅助定位过程)。 如果执行的是UE辅助定位过程，则LMF向服务AMF发送定位消息时(UE辅助定位过程中的步骤1)，可在消息中携带路由标识符，该标识符用于标识LMF。AMF通过NAS传输消息(UE辅助定位过程的步骤3)将该标识发送给UE。
15-18、LMF通过VGMLC和/或HGMLC向LCS客户端返回位置信息。
当从源NG-RAN节点切换到目标NG-RAN节点(或其他3GPP RAN节点)时，下述过程用于支持紧急会话的位置连续性。如图5所示为从NG-RAN切换紧急会话的位置服务LCS的连续性的流程图(具体参见3GPP.TS23.502)，其中，所谓LCS服务的连续性，是指当获取UE位置信息的服务请求到达某一个网络(比如5G时)，该UE正在向另一个网络(比如4G)的执行移动过程(这种移动可以是空闲态的移动过程，也可以是连接态的切换过程)，此时网络应该继续执行针对该UE的位置信息的服务请求，并将获得的UE的位置信息反馈给请求方。
图5中的步骤流程如下：
1、UE为紧急业务建立PDU(Protocol Data Unit，协议数据单元)会话。
2、LRF(Location Retrieval Function，位置获取功能)请求源GMLC向AMF发送Namf_Location_ProvideLocation(SUPI或PEI，请求的QoS，位置请求来自紧急业务客户端指示)，请求UE当前位置。其中，LRF实体负责检索发起IMS紧急会话的UE的位置信息。
3、如果执行步骤2，源AMF启动位置会话获取UE位置。
4、源AMF接收到将UE切换到目标小区的请求，目标小区由其他AMF或MME服务。
5、执行切换过程。
6、在步骤3启动的位置会话在步骤6被终止，如果没有，则源AMF在步骤5结束之后立即终止位置会话。
7a、如果执行了步骤3，源AMF向GMLC返回Namf_Location_ProvideLocation Response(UE位置，目标节点标识)。
7b、如果步骤2和7a未执行，源AMF向GMLC调用Namf_Location_EventNotify(SUPI或PEI(Permanent Equipment Identifier，静态设备标识符)，GPSI(Generic Public Subscription Identifier，通用公共签约标识符，如可用)，表明正在切换的事件类型，目标节点标识)。
8a、对于跨RAN节点切换(例如切换到连接EPC(Evolved Packet Core Network，演进的分组核心网)的E-UTRAN(Evolved Universal Terrestrial Radio Access Network，演进的统一陆地无线接入网络))，如果目标侧使用控制面位置，则目标节点(如MME)在切换完成之后向GMLC发送Subscriber Location Report(UE标识(MSISDN(Mobile Subscriber international ISDN Number，移动签约用户国际ISDN号码)和/或IMEI(International Mobile Equipment Identity，国际移动设备标识))，表明切换的事件类型，目标节点标识)。
8b、对于RAN(Radio Access Network，无线接入网络)内部的切换，如果目标侧使用控制面定位，则目标AMF向GMLC调用Namf_Location_EventNotify(SUPI或PEI，GPSI(如可用)，表明正在切换的事件类型，目标节点标识)。
9、重配LRF，源和目标GMLC。具体过程不属于3GPP的研究范围。
10、如果LRF在切换之后需要获取UE位置，而且目标侧使用控制面位置，则LRF 通过目标节点发送MT-LR请求。
在切换发生之前，源侧如果收到了位置服务请求(步骤2)，则在切换进行的同时，继续执行定位过程。如果在切换完成时，定位过程已经结束了，则源侧需要通知GMLC所获得的位置信息、目标侧服务节点(比如MME)的身份(步骤7a)。如果在切换完成时，定位过程没有结束，则源侧需要终结该过程(步骤6)，并通知GMLC由于切换，无法获得位置信息、以及目标侧服务节点的身份。GMLC在LRF的介入下，重新发起位置服务请求(步骤9、10)。
在5GC的LCS服务增强项目的研究过程中，提出了5G和4G系统互连互通(即INTERWORKING)。
在5GC第一阶段规范中，针对5GS-EPS(EPS：Evolved Packet System,演进的分组系统)互通，定义了互通的架构(即在AMF和MME之间引入N26接口)和互通的具体流程。其中，互通架构如图6所示。图中，MME和5GS中的AMF之间的N26接口是可选支持的，当网络支持N26接口时，网络可以支持5G和LTE网络之间的切换，此时MME和AMF之间需要传递UE的上下文信息，包括移动性上下文和会话连接的上下文。终端接入这种支持N26接口的网络时，网络可能将其注册模式配置为单注册模式，即single registration mode。所谓单注册，就是UE在任一时刻只能在1个系统(5GS或者EPS)中注册。
此外，现有基于N26接口的从5GS到EPS的切换示意图如图7所示，其中，没有针对UE的定位服务的相关流程。具体来讲，该过程包括切换到EPC、在EPC中建立默认EPS承载和为保证比特速率的QoS流建立专用承载(步骤1-16)，以及如果需要的话，为非保证比特速率的QoS流重新激活专用EPS承载(步骤17)。这个过程的触发原因可以是新的无线环境、负载均衡、出现普通语音或IMS紧急语音的QoS流。
对于以太网以及非结构化的PDU会话类型，在EPS中将用到PDN(Packet Data Network，分组数据网络)类型是non-IP。在该情况下，SMF(Session Management Function，会话管理功能)需要把EPS承载上下文的PDN类型设置为non-IP。切换到EPS之后，PDN连接将有non-IP的PDN类型，但是UE和SMF将其关联到的PDU会话类型为以太网或者非结构化。
在家乡路由漫游场景下，由PGW-C+SMF向UE提供EPS承载标识以及映射的QoS参数。V-SMF从H-SMF获取EPS承载ID和映射过来的QoS参数。这同样适用于不带N26接口的互操作过程中HPLMN的操作。
注1：如果HPLMN中的PGW-C+SMF不提供映射的QoS参数，则不支持IP地址连续。
1、NG-RAN决定应将UE切换到E-UTRAN。如果由于QoS流建立导致IMS语音回落，NG-RAN被配置为在该场景下执行跨RAT移动，当NG-RAN接收到为IMS语音建立QoS流的请求时，NG-RAN拒绝QoS flow建立，并通过N2SM信息指示原因是IMS语音回落，NG-RAN触发到E-UTRAN的切换。NG-RAN向AMF发送Handover Requred(目标eNB标识，源到目标透明容器，跨系统切换指示)。NG-RAN在源到目标透明容器中指示用于数据转发的与5G QoS Flow相关的承载。
如果由于紧急回落触发切换，NG-RAN可以在源到目标的传输容器里向目标eNB发送紧急指示，目标eNB分配无线承载资源时把接收到的指示纳入考虑。
2、AMF从“目标eNB标识”判定切换的类型为到E-UTRAN的切换。AMF根据TS23.401选择MME。AMF使用Nsmf_PDUSession_ContextRequest向V-SMF请求每条在3GPP接入内建立的PDU会话的SM上下文(包括映射的EPS承载上下文)。AMF在该请求中向SMF提供目标MME能力，允许V-SMF决定是否包含non-IP的PDN类型的EPS承载上下文。对于以太网和非结构化的PDU会话类型，SMF提供non-IP的PDN类型的SM上下文。这一步由所有配置给UE的PGW-C+SMF完成，以覆盖UE的每个PDU会话。
注：AMF根据本地配置可知MME是否支持non-IP PDN类型。在家乡路由漫游场景，AMF从V-SMF获取UE的SM EPS上下文。
3、AMF发送Forward Relocation Request，如同TS23.401中的基于S1的切换过程的步骤2，并做如下修改：
-可能包含“Return Preferred”参数。该参数是一个可选的指示，说明后续接入改变到5GS共享网络时，优选地，该UE返回到5GS PLMN。
-消息中包括控制平面或EPS承载的SGW地址和TEID，因此目标MME选择一个新的SGW。AMF包含直接转发标志，以通知目标MME间接数据转发的可用性。
注：不论PDU会话是否有活跃的UP连接，消息中都包含PDU会话的映射的SM EPS UE上下文。
4-5、分别对应TS23.401中5.5.1.2.2小节(基于S1接口的切换，正常情况)中的步骤4和4a。
5、对应TS23.401中5.5.1.2.2小节(基于S1接口的切换，正常情况)中的步骤5(切换请求)。并做了如下修改：
-切换请求可包括携带PLMN ID信息的切换限制列表信息。
7-9、分别对应TS23.401中5.5.1.2.2小节(基于S1接口的切换，正常情况)中的步骤5a至7。
10a、如果使用了间接数据转发，AMF发送Nsmf_PDUSession_UpdateSMContext Request(用于数据转发的服务SGW地址和下行TEID)给PGW-C+SMF，用于创建间接数据转发通道。如果有多个PGW-C+SMF服务UE，AMF基于EPS承载ID和PDU会话ID的关联关系，将用于数据转发的EPS承载映射到PGW-C+SMF地址。在家乡路由漫游场景，AMF请求V-SMF创建间接转发隧道。
10b、PGW-C+SMF可以选择中间PGW-U+UPF用于数据转发。PGW-C+SMF基于EPS承载ID和QFI的关联关系把用于数据转发的EPS承载映射到5G QoS流上，并向PGW-U+UPF发送QFI，用于数据转发的SGW地址和TEID。如果用于数据转发的CN隧道信息由PGW-C+SMF分配，CN隧道信息在此步骤中提供给PGW-U+UPF，PGW-U+UPF发送ACK回复。如果CN隧道信息由PGW-U+UPF分配，则在ACK回复消息中将该信息提供给PGW-C+SMF。在家乡路由漫游场景，V-SMF选择用于数据转发的V-UPF。
10c、PGW-C+SMF返回Nsmf_PDUSession_UpdateSMContext Response(原因，用于数据转发的CN隧道信息，用于数据转发的QoS流)用于创建间接数据转发。基于用于数据转发的QFI和SGW地址和TEID之间的关联关系，PGW-U+UPF把QoS流映射到EPC中的数据转发隧道。
11、AMF向源NG-RAN发送切换命令(透明容器(目标eNB在准备阶段建立的无线参数)，每个PDU会话的用于数据转发的CN隧道信息，用于数据转发的QoS流)。源 NG-RAN通过发送切换命令，命令UE切换到目标接入网络。UE把QoS Flow和切换命令包括的要建立的EPS承载标识关联在一起。如果PDU会话中与默认QoS规则相关的QoS流没有被分配EPS承载ID，UE本地删除该PDU会话。如果与默认QoS规则相关的QoS流被分配了EPS承载ID，UE保持该PDU会话(PDN连接)。对于剩余的未被分配EPS承载ID的QoS流，UE本地删除与这些QoS流相关的QoS规则。UE删除所有UE推导的QoS规则。为PDU会话的默认QoS规则的QoS Flow分配的EPS承载ID成为相应PDN连接的默认承载的EPS承载ID。
对于“用于数据转发的QoS Flow”，NG-RAN根据每条PDU会话用于数据转发的CN隧道信息，向PGW-U+UPF发起数据转发。然后PGW-U+UPF将从5GS中的数据转发隧道接收到的数据发送到EPS中的隧道，并通过SGW将数据发送给目标eNB。
12-12c、对应TS23.401中5.5.1.2.2小节(基于S1接口的切换，正常情况)中的步骤13到14。
12d、AMF发送Relocation Complete ACK给MME。AMF启动计时器，用于管理释放NG-RAN和PGW-C+SMF中的资源的时间。
13、对应TS23.401中5.5.1.2.2小节(基于S1接口的切换，正常情况)中的步骤15。
14、对应TS23.401中5.5.1.2.2小节(基于S1接口的切换，正常情况)中的步骤16，并做了如下修改：
-如果与PDU会话中的默认QoS规则相关的QoS流没有被分配EPS承载ID，PGW-C+SMF删除PDU会话。如果与默认QoS规则相关的QoS流被分配了EPS承载ID，PGW-C+SMF保留该PDU会话(PDN连接)，对于其他未被分配EPS承载ID的QoS Flow，PGW-C+SMF保留与这些QoS Flow相关的PCC规则。
注：如步骤18的描述，PGW-C+SMF为这些保留的PCC规则发起专用承载激活过程。
注：如果QoS Flow被删除，且默认QoS规则的分组过滤器允许传输所有的UL分组或者是该规则不包括分组过滤器集合，则被删除的QoS规则的IP流将被映射到默认EPS承载。如果默认QoS规则包括分组过滤器，则被删除QoS Flow中的IP流被中断，直至TS 23.401第5.5.1.2.2小节中的步骤18。
15、PGW-C+SMF向UPF+PGW-U发起N4会话修改流程，更新用户面路径。
16、对应TS23.401中5.5.1.2.2小节(基于S1接口的切换，正常情况)中的步骤16a(修改承载回复)。此时，在UE、目标eNodeB、SGW和PGW-U+UPF之间已经建立起默认承载和专用GBR承载的用户面路径。在QoS流建立过程中，PGW-C+SMF使用为专用EPS GBR承载分配的EPS QoS参数。PGW-C+SMF把其它所有IP流映射到默认EPS承载上。
17、对应TS23.401中5.5.1.2.2小节(基于S1接口的切换，正常情况)中的步骤17。
18、UE发起TAU过程，如同TS23.401中5.3.3.3小节的描述。
当旧的AMF决定不保留UE在非3GPP接入的注册，则旧的AMF通过向UDM发送Nudm_SDM_Unsubscribe服务操作取消其订阅的签约数据更新，并释放所有该UE相关的所有AMF和AN资源。
19、PGW-C+SMF通过将非GBR Flow的参数映射到EPC QoS参数，为non-GBR QoS Flow发起专有承载激活过程。如果部署了PCC，该步骤可由PCRF+PCF触发。该过程请参考TS23.401第5.4.1章节。对于以太网PDU会话类型，在EPS中使用非IP的PDN类 型，这一步不需要。
20、对应TS23.401中5.5.1.2.2小节(基于S1接口的切换，正常情况)中的步骤21。
21、如果使用了间接转发，AMF在步骤12c启动的计时器超时将触发AMF调用Nsmf_PDUSession_UpdateSMContext Request服务操作，向V-SMF指示释放转发隧道，目的是释放步骤10中为间接转发分配的临时资源。V-SMF返回Nsmf_PDUSession_UpdateSMContext Response消息。
可见，在现有技术，如果在切换结束前就获得了位置信息，这个位置信息可能是不准确的，因为切换很大部分的原因是UE移动引起的，并且这个位置信息是在源侧计算得到的。如果切换结束时，还没有完成位置信息的获取，则规范中需要重新发起位置服务请求过程，这样将带来一定的时间延迟。
此外，现有5GS-EPS互通中，针对IMS业务之外的业务如商业应用业务(比如：车联网、宽带)，如何实现LCS位置服务进而实现LCS位置服务的连续性是一个待解决的技术问题。
发明内容
本申请实施例提供一种终端位置服务的确定方法、设备及可读存储介质，用于实现在5GS-EPS互通中，对终端位置服务的确定，进而实现位置服务的连续性。
第一方面，本申请实施例提供了一种终端位置服务的确定方法，包括：
在终端UE由下一代无线接入网络(NG-RAN)切换至演进的统一陆地无线接入网络(E-UTRAN)过程中，若接入和移动性管理功能(AMF)需要针对所述UE的定位过程，或者，若在UE由NG-RAN切换至E-UTRAN时，若AMF正在执行针对所述UE的定位过程，则所述AMF指示移动管理实体(MME)进行定位过程。
可选地，所述AMF指示MME进行定位过程，包括：所述AMF通过N26接口将来自核心网的位置服务请求发送给所述MME。
可选地，所述AMF通过重定位完成的RELOCATION COMPLETE消息携带所述位置服务请求。
可选地，在所述AMF通过N26接口将来自核心网的位置服务请求发送给所述MME之前，所述方法还包括：所述AMF将所述位置服务请求转化为提供用户位置信息的Provide Subscriber Location消息。
可选地，所述方法还包括：所述AMF将拜访网关移动定位中心(V-GMLC)标识发送给所述MME，以使所述MME向所述V-GMLC标识对应的目标V-GMLC发送所述UE的位置信息，其中，所述UE的位置信息是在所述AMF指示所述MME进行定位过程，所述MME所获得的。
可选地，在所述AMF指示所述MME进行定位过程，所述MME获得所述UE的位置信息之后，所述方法还包括：所述AMF通过所述N26接口接收所述MME发送的所述UE的位置信息；所述AMF经由所述目标V-GMLC发送所述UE的位置信息至LCS客户端。
第二方面，本申请实施例还提供了一种终端位置服务的确定方法，包括：在UE由NG-RAN切换至E-UTRAN过程中，若AMF需要针对所述UE的定位过程，或者，若在UE由NG-RAN切换至E-UTRAN时，若AMF正在执行针对所述UE的定位过程，则MME 接收来自所述AMF的执行定位过程指示。
可选地，MME接收来自所述AMF的执行定位过程指示，包括：所述MME通过N26接口接收来自核心网的位置服务请求。
可选地，在所述MME通过N26接口中接收来自核心网的位置服务请求之前，所述方法还包括：所述MME通过N26接口接收来自所述AMF的提供用户位置信息的Provide Subscriber Location消息，其中，所述提供用户位置信息是由所述AMF对所述位置服务请求转化得到的。
可选地，所述方法还包括：所述MME接收所述AMF发送的V-GMLC标识。
可选地，在所述MME通过N26接口接收来自核心网的位置服务请求之后，所述方法还包括：所述MME发送所述位置服务请求至演进的服务移动位置中心(E-SMLC)；所述MME接收所述E-SMLC返回的所述UE的位置信息。
可选地，所述方法还包括：若所述MME接收到所述AMF发送的所述V-GMLC标识，所述MME向所述V-GMLC标识对应的目标V-GMLC发送所述UE的位置信息，其中，所述UE的位置信息是由所述MME执行对所述UE的定位过程之后，所述MME所获得的位置信息。
可选地，在所述MME执行对所述UE的定位过程，并获得所述UE的位置信息之后，所述方法还包括：所述MME通过N26接口发送所述UE的位置信息至所述AMF。
第三方面，本申请实施例还提供了一种终端位置服务的确定方法，包括：在UE由E-UTRAN切换至NG-RAN过程中，若MME需要针对所述UE的定位过程，或者，若终端UE由E-UTRAN切换至NG-RAN时，若MME正在执行针对所述UE的定位过程，则所述MME指示AMF进行定位过程。
可选地，述MME指示AMF进行定位过程，包括：所述MME通过N26接口将来自核心网的位置服务请求发送给所述AMF。
可选地，所述方法还包括：所述MME接收来自目标V-GMLC的提供用户位置信息的Provide Subscriber Location消息以及用于标识所述目标V-GMLC的V-GMLC标识。
可选地，所述方法还包括：所述MME向所述目标V-GMLC发送用户位置报告Subscriber Location Report消息，其中，所述用户位置报告消息包括用于表征所述MME不能对所述UE进行定位的原因是网络切换；所述MME将用于标识所述AMF的AMF地址发送给所述目标V-GMLC，以使所述目标V-GMLC向所述AMF发送针对所述UE的位置请求消息。
可选地，在所述AMF执行对所述UE的定位过程，并获得所述UE的位置信息之后，所述方法还包括：所述MME通过N26接口接收所述AMF发送的所述UE的位置信息；所述MME经由所述目标V-GMLC发送所述UE的位置信息至LCS客户端。
第四方面，本申请实施例还提供了一种终端位置服务的确定方法，包括：在UE由E-UTRAN切换至NG-RAN过程中，若MME需要针对所述UE的定位过程，或者，若终端UE由E-UTRAN切换至NG-RAN时，若MME正在执行针对所述UE的定位过程，则AMF接收来自所述MME的执行定位过程指示。
可选地，AMF接收来自所述MME的执行定位过程指示，包括：所述AMF通过N26接口接收来自核心网的位置服务请求。
可选地，所述方法还包括：所述AMF通过N26接口接收来自所述MME的用于标识 目标V-GMLC的V-GMLC标识。
可选地，在所述AMF通过N26接口接收来自核心网的位置服务请求之后，所述方法还包括：所述AMF发送所述位置服务请求至位置管理功能(LMF)；所述AMF接收所述LMF返回的所述UE的位置信息。
可选地，在所述AMF接收来自所述MME的执行定位过程指示，并获得所述UE的位置信息之后，所述方法还包括：所述AMF向所述目标V-GMLC发送所述UE的位置信息。
可选地，在所述AMF接收来自所述MME的执行定位过程指示，并获得所述UE的位置信息之后，所述方法还包括：所述AMF通过N26接口发送所述UE的位置信息至所述MME。
第五方面，本申请实施例还提供了一种用于确定终端位置服务的AMF设备，包括：指示单元，在UE由NG-RAN切换至E-UTRAN过程中，若所述AMF设备需要针对所述UE的定位过程，或者，若在UE由NG-RAN切换至E-UTRAN时，若所述AMF设备正在执行针对所述UE的定位过程，指示MME进行定位过程。
可选地，所述指示单元用于：通过N26接口将来自核心网的位置服务请求发送给所述MME。
可选地，所述指示单元用于：通过重定位完成的RELOCATION COMPLETE消息携带所述位置服务请求。
可选地，所述AMF设备还包括：转化单元，在所述指示单元通过N26接口将来自核心网的位置服务请求发送给所述MME之前，将所述位置服务请求转化为提供用户位置信息的Provide Subscriber Location消息。
可选地，所述AMF设备还包括：第一发送单元，将V-GMLC标识发送给所述MME，以使所述MME向所述V-GMLC标识对应的目标V-GMLC发送所述UE的位置信息。
可选地，所述AMF设备还包括：接收单元，在所述AMF设备指示所述MME进行定位过程，所述MME获得所述UE的位置信息之后，通过所述N26接口接收所述MME发送的所述UE的位置信息；
第二发送单元，经由所述目标V-GMLC发送所述UE的位置信息至LCS客户端。
第六方面，本申请实施例还提供了一种用于确定终端位置服务的MME设备，包括：第一接收单元，在终端UE由NG-RAN切换至E-UTRAN过程中，若AMF需要针对所述UE的定位过程，或者，若在终端UE由NG-RAN切换至E-UTRAN时，若AMF正在执行针对所述UE的定位过程，接收来自所述AMF的执行定位过程指示。
可选地，所述第一接收单元用于：通过N26接口接收来自核心网的位置服务请求。
可选地，所述第一接收单元还用于：通过N26接口接收来自所述AMF的提供用户位置信息的Provide Subscriber Location消息，其中，所述提供用户位置信息是由所述AMF对所述位置服务请求转化得到的。
可选地，所述第一接收单元还用于：接收所述AMF发送的V-GMLC标识。
可选地，所述MME设备还包括：第一发送单元，在所述第一接收单元通过N26接口接收来自核心网的位置服务请求之后，发送所述位置服务请求至演进的服务移动位置中心(E-SMLC)；第二接收单元，用于接收所述E-SMLC返回的所述UE的位置信息。
可选地，所述MME设备还包括：第二发送单元，若所述第一接收单元接收到所述AMF发送的所述V-GMLC标识，用于向所述V-GMLC标识对应的目标V-GMLC发送所述UE 的位置信息，其中，所述UE的位置信息是由所述MME执行对所述UE的定位过程之后，所述MME所获得的位置信息。
可选地，在所述MME设备执行对所述UE的定位过程，并获得所述UE的位置信息之后，所述MME设备还包括：第三发送单元，用于通过N26接口发送所述UE的位置信息至所述AMF。
第七方面，本申请实施例还提供了一种用于确定终端位置服务的MME设备，包括：指示单元，在UE由E-UTRAN切换至NG-RAN过程中，若所述MME设备需要针对所述UE的定位过程，或者，若终端UE由E-UTRAN切换至NG-RAN时，若所述MME设备正在执行针对所述UE的定位过程，指示AMF进行定位过程。
可选地，所述指示单元用于：通过N26接口将来自核心网的位置服务请求发送给所述AMF。
可选地，所述MME设备还包括：第一接收单元，用于接收来自目标V-GMLC的提供用户位置信息的Provide Subscriber Location消息以及用于标识所述目标V-GMLC的V-GMLC标识。
可选地，所述MME设备还包括：第一发送单元，用于向所述目标V-GMLC发送用户位置报告Subscriber Location Report消息，其中，所述用户位置报告消息包括用于表征所述MME不能对所述UE进行定位的原因是网络切换；第二发送单元，将用于标识所述AMF的AMF地址发送给所述目标V-GMLC，以使所述目标V-GMLC向所述AMF发送针对所述UE的位置请求消息。
可选地，所述MME设备还包括：第二接收单元，在所述AMF执行对所述UE的定位过程，并获得所述UE的位置信息之后，通过N26接口接收所述AMF发送的所述UE的位置信息；第三发送单元，经由所述目标V-GMLC发送所述UE的位置信息至LCS客户端。
第八方面，本申请实施例还提供了一种用于确定终端位置服务的AMF设备，包括：第一接收单元，在终端UE由E-UTRAN切换至NG-RAN过程中，若MME需要针对所述UE的定位过程，或者，若终端UE由E-UTRAN切换至NG-RAN时，若MME正在执行针对所述UE的定位过程，接收来自所述MME的执行定位过程指示。
可选地，所述第一接收单元用于：通过N26接口接收来自核心网的位置服务请求。
可选地，所述第一接收单元还用于：通过N26接口接收来自所述MME的用于标识目标V-GMLC的V-GMLC标识。
可选地，所述AMF设备还包括：第一发送单元，用于发送所述位置服务请求至LMF；第二接收单元，用于接收所述LMF返回的所述UE的位置信息。
可选地，所述AMF设备还包括：第二发送单元，用于向所述目标V-GMLC发送所述UE的位置信息。
可选地，所述AMF设备还包括：第三发送单元，在所述第一接收单元接收来自所述MME的执行定位过程指示，并获得所述UE的位置信息之后，通过N26接口发送所述UE的位置信息至所述MME。
第九方面，本申请实施例提供了一种计算机装置，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现如上所述终端位置服务的确定方法的步骤。
第十方面，本申请实施例提供了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如上所述终端位置服务的确定方法的步骤。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例。
图1为现有LTE网络的LCS架构示意图；
图2为现有5G网络中的一种定位业务的非漫游架构(服务化架构)示意图；
图3为现有5G网络中的一种定位业务的非漫游架构(点到点架构)示意图；
图4为现有UE处于静止态，或者即使UE移动但也不发生网络切换前提下的5G网络中的MT-LR过程示意图；
图5为现有从NG-RAN切换紧急会话的位置连续性流程图；
图6为支持5G网络和LTE网络互操作的网络架构示意图；
图7为现有基于N26接口从5GS切换到EPS的切换过程示意图；
图8为本申请实施例中5GC切换至EPC过程中位置连续性的流程图；
图9为5G网络下针对UE的定位过程的第一种实现方式的示意图；
图10为5G网络下针对UE的定位过程的第二种实现方式的示意图；
图11为本申请实施例中5GC切换至EPC过程中UE的位置信息的其中一种上报流程图；
图12为本申请实施例中EPC切换至5GC过程中位置连续性的流程图；
图13为本申请实施例中EPC切换至5GC过程中UE的位置信息的其中一种上报流程图；
图14为本申请实施例中EPC切换至5GC过程中在AMF接收来自核心网的位置服务请求之后的方法流程图；
图15为本申请实施例提供的一种用于确定终端位置服务的设备的结构示意图；
图16为5G网络中的另一种定位业务的非漫游架构(服务化架构)示意图；与图2中架构的区别是没有LRF实体；
图17为5G网络中的另一种定位业务的非漫游架构(点到点架构)示意图；和图3中架构的区别是在图17的这个架构中，GMLC可以直接和LMF交互。
具体实施方式
为了更好的理解上述技术方案，下面通过附图以及具体实施例对本申请技术方案做详细的说明，应当理解本申请实施例以及实施例中的具体特征是对本申请技术方案的详细的说明，而不是对本申请技术方案的限定，在不冲突的情况下，本申请实施例以及实施例中的技术特征可以相互结合。
实施例一
本申请实施例一提供了一种终端位置服务的确定方法，在本申请实施例中，在UE由 NG-RAN切换至E-UTRAN过程中，若AMF需要针对所述UE的定位过程，或者，若在终端UE由NG-RAN切换至E-UTRAN时，若AMF正在执行针对所述UE的定位过程，若AMF正在执行针对所述UE的定位过程，则所述AMF通过N26接口指示MME进行定位过程。比如，在UE从5G系统切换至4G系统时，通过目标侧来获得UE的位置信息，也就是说，在5G系统切换至4G系统的过程中，源侧指示目标侧进行针对UE的定位过程，不仅保证了针对UE的位置信息的获取准确性，而且保证了系统切换过程中针对UE的LCS的连续性。
在具体实施过程中，在5GC切换至EPC过程中，支持UE的LCS位置服务连续性的流程图如图8所示。具体来讲，在A中步骤1：AMF接收到了来自LMF的位置请求消息(例如，由5GS中的MT-LR位置请求过程触发；或者由其它过程诸如5GC Network Induced Location Request(NI-LR)过程、5GC Mobile Originated Location Request(MO-LR)过程等触发)，其中，位置请求消息可以为Namf_Communication_N1N2MessageTransfer，对应图4中步骤14中的说明，其中的路由标识，用于标识LMF。也就是说，AMF正在执行针对所述UE的定位过程。此时，在B中，步骤2：NG-RAN发起了切换，若AMF接收到NG-RAN切换至E-UTRAN的切换请求，则AMF指示MME进行针对UE的定位过程。也就是说，在AMF执行定位过程中，需要NG-RAN切换至E-UTRAN时，AMF指示MME进行针对UE的定位过程。或者，AMF接收到NG-RAN切换至E-UTRAN的切换请求后，在切换过程结束之前，AMF又接收来自LMF的位置请求，并需要发起定位过程。此时，AMF通过N26接口指示MME进行针对UE的定位过程。也就是说，在NG-RAN切换至E-UTRAN过程中，AMF收到了位置请求，则AMF指示MME进行针对UE的定位过程。
在具体实施过程中，图4中的步骤14中的定位过程，及5G网络下针对UE的定位过程可以有以下两种实现方式。第一种实现方式如图9所示，具体为UE辅助的以及基于UE的定位过程，具体包括以下步骤：
1、LMF向AMF调用Namf_Communication_N1N2MessageTransfer服务操作，请求向UE发送DL Positioning消息。Namf_Communication_N1N2MessageTransfer的Session ID参数被设置为LCS关联标识符。DL Positioning消息可从UE请求位置信息，向UE提供辅助信息或请求UE能力。
2、如果UE处于CM-IDLE态，AMF发起网络触发的业务请求过程，建立到UE的信令连接。
3、AMF向UE发送DL NAS TRANSPORT(DL Positioning消息，路由标识符)。其中路由标识符标识LMF。
4、UE存储DL Positioning消息中的辅助数据，并执行定位测量和位置计算。
5、如果UE在步骤4进入CM-IDLE，则UE发起UE触发的业务请求过程，建立到AMF的信令连接。
6、UE返回在步骤4获得的位置信息，并根据步骤3的请求返回能力信息。UE向AMF发送UL NAS TRANSPORT(Uplink Positioning消息，路由标识符)。其中路由标识符是UE在步骤3接收到的标识符。
7、AMF根据路由标识符，向LMF调用Namf_Communication_N1MessageNotify(Uplink Positioning消息，LCS关联标识符)。
第二种实现方式如图10所示，具体为网络辅助的定位过程，具体包括以下步骤：
1、LMF向AMF调用Namf_Communication_N1N2MessageTransfer(Network Positioning消息，LCS关联标识符)，请求向UE连接的NG-RAN发送Network Positioning消息，该消息用于向NG-RAN请求UE位置信息。
2、如果UE处于CM-IDLE态，AMF发起网络触发的业务请求过程，建立到UE的信令连接。
3、AMF向服务NG-RAN发送N2Transport(Network Positioning消息，路由标识符)。路由标识符识别LMF(例如LMF的全球地址)。
4、服务NG-RAN节点获取UE位置信息。
5、服务NG-RAN节点向AMF返回N2Transport(Network Positioning消息，路由标识符)。
6、AMF向LMF调用Namf_Communication_N2InfoNotify(Network Positioning消息，LCS关联标识符)。
在具体实施过程中，在C中，通过步骤3和步骤4实现AMF终止定位过程，具体来讲，步骤3中，AMF向LMF发送NOTIFY消息，说明执行切换、目标MME的地址。然后，步骤4，LMF发送NOTIFY消息给V-GMLC，说明执行切换、目标MME的地址。此外，AMF忽略收到的来自UE或者NG-RAN的定位过程返回的消息。
参见图8，进一步地，执行D中，步骤5：所述AMF通过N26接口，指示MME进行定位过程，具体为：所述AMF通过N26接口将核心网中接收到的位置服务请求发送给所述MME。在具体实施过程中，为了降低信令交互，AMF通过重定位完成的RELOCATION COMPLETE消息携带所述位置服务请求。AMF将步骤1中收到的定位请求消息，发送给MME。所述定位请求消息，是指TS 23.502[5]中章节4.13.5.4,4.13.5.5，在第1步，AMF收到的激活Namf_Communication_N1N2MessageTransfer服务的消息，AMF需要转化为MME可以认识的“Provide SubscriberLocation”消息。(具体参见TS23.271中的9.1.15的步骤2)。并放置在图1-1中步骤12d中的消息中，捎带给MME。所述定位请求消息，还可以是TS 23.502[5]中章节4.13.5.1，4.13.5.2，4.13.5.7，AMF收到的来自GMLC的激活Namf_Location_ProvideLocation服务的消息。
然后，执行步骤6，MME在收到位置服务请求之后，MME发送所述位置服务请求至E-SMLC，E-SMLC发起定位过程，然后，E-SMLC向MME返回所述UE的位置回复消息。MME从而获得所述UE的位置信息。
在具体实施过程中，为了实现对UE的位置信息的上报，在AMF指示MME进行定位过程时，所述方法还包括：所述AMF将拜访V-GMLC标识发送给所述MME，以使所述MME向所述V-GMLC标识对应的目标V-GMLC发送所述UE的位置信息。其中，所述V-GMLC标识可以是V-GMLC地址、V-GMLC名称等形式。
在具体实施过程中，MME接收来自AMF的执行定位过程指示后，发起在EPS系统中的定位过程。在定位过程中，如果MME有V-GMLC标识，则MME向该标识对应目标V-GMLC发送UE的位置信息，从而实现了对UE位置信息的上报。其中，V-GMLC标识具体可以是在步骤1中由LMF告诉AMF，后AMF经步骤5发送给MME。
在本申请实施例中，在MME获得UE的位置信息之后，除了可以采用上述的通过EPS系统进行UE位置信息的上报过程之外，还可以采用图11所示的上报过程，具体来讲，步骤：所述AMF指示所述MME进行定位过程，所述MME获得所述UE的位置信息之后， 所述方法还包括：
S101：所述AMF通过所述N26接口接收所述MME发送的所述UE的位置信息；
S102：所述AMF经由所述目标V-GMLC发送所述UE的位置信息至LCS客户端。
在具体实施过程中，步骤S101至步骤S102的具体实现过程如下：
MME在获得UE的位置信息之后，MME通过N26接口发送UE的位置信息至5GS系统的AMF，从而AMF将UE的位置信息发送给目标V-GMLC，待目标V-GMLC接收到UE的位置信息后，所述目标V-GMLC将UE的位置信息发送给LCS客户端(LCS CLIENT)。此外，5GS系统的AMF还可以将UE的位置信息发送给LMF(参考图16和图17中的架构，分别为5G网络中的另外一种定位业务的非漫游架构下的服务化架构、点到点架构)，其中，图16中的架构与图2中的架构主要的区别在于没有LRF实体，而图17中的架构与图3的架构间的区别在于，GMLC可以直接和LMF交互。然后由LMF发送给目标V-GMLC，由V-GMLC将UE的位置信息，发送给LCS CLIENT，从而实现了在5GS系统中UE位置信息的上报。也就是说，在目标侧MME获得UE的位置信息之后，可以在EPS系统中实现对UE的位置信息的上报，还可以在5GS系统中来对UE的位置信息进行上报。
实施例二
基于与实施例一同样的发明构思，本申请实施例二还提供了一种终端位置服务的确定方法，包括：在终端UE由NG-RAN切换至E-UTRAN过程中，若AMF需要针对所述UE的定位过程，或者，若在终端UE由NG-RAN切换至E-UTRAN时，若AMF正在执行针对所述UE的定位过程，则MME接收来自所述AMF的执行定位过程指示。也就是说，在5G系统切换至4G系统的过程中，目标侧接收来自源侧针对UE的执行定位过程指示，从而由目标侧实现对UE的定位过程，不仅保证了针对UE的位置信息的获取准确性，而且保证了系统切换过程中针对UE的LCS的连续性。
在具体实施过程中，MME接收来自所述AMF的执行定位过程指示，包括：所述MME通过N26接口接收来自核心网的位置服务请求。
为了降低信令，在具体实施过程中，在所述MME通过N26接口中接收来自核心网的位置服务请求之前，所述方法还包括：所述MME通过N26接口接收来自所述AMF的提供用户位置信息的Provide Subscriber Location消息，其中，所述提供用户位置信息是由所述AMF对所述位置服务请求转化得到的。
在本申请实施例中，为了提高对UE位置信息的上报，所述方法还包括：所述MME接收所述AMF发送的拜访网关移动定位中心V-GMLC标识。
在本申请实施例中，在所述MME通过N26接口接收来自核心网的位置服务请求之后，所述方法还包括：所述MME发送所述位置服务请求至E-SMLC；所述MME接收所述E-SMLC返回的所述UE的位置信息。
在本申请实施例中，所述方法还包括：若所述MME接收到所述AMF发送的所述V-GMLC标识，所述MME向所述V-GMLC标识对应的目标V-GMLC发送所述UE的位置信息，其中，所述UE的位置信息是由所述MME执行对所述UE的定位过程之后，所述MME所获得的位置信息。
在本申请实施例中，在所述MME执行对所述UE的定位过程，并获得所述UE的位置信息之后，所述方法还包括：所述MME通过N26接口发送所述UE的位置信息至所述AMF。
在本申请实施例中，在NG-RAN切换至E-UTRAN过程中，源侧通过N26接口将来自核心网的位置服务请求发送给目标侧，从而由目标侧实现对UE位置信息的定位，进一步地实现了切换过程中LCS位置服务的连续性。
实施例三
基于与实施例一同样的发明构思，本申请实施例三还提供E-UTRAN切换至NG-RAN过程中终端位置服务的确定方法，具体来讲，在UE由E-UTRAN切换至NG-RAN过程中，若MME需要针对所述UE的定位过程，或者，若UE由E-UTRAN切换至NG-RAN时，若MME正在执行针对所述UE的定位过程，则所述MME指示AMF进行定位过程。比如，在UE从4G系统切换至5G系统时，通过目标侧来获得UE的位置信息，也就是说，在4G系统切换至5G系统的过程中，源侧指示目标侧进行针对UE的定位过程，不仅保证了针对UE的位置信息的获取准确性，而且保证了系统切换过程中针对UE的LCS的连续性。
在具体实施过程中，MME指示AMF进行定位过程，具体可以是MME通过N26接口将来自核心网的位置服务请求发送给AMF。
在具体实施过程中，具体方法流程图如图12所示。
具体来讲，在A中，步骤1a：MME接收到来自目标V-GMLC的提供用户位置消息的Provide Subscriber Location消息。然后，执行步骤1b：MME选择一个E-SMLC，然后发送Location Request message。此处，MME知道VGMLC和E-SMLC的地址。也就是说，MME除了接收来自目标V-GMLC的提供用户位置消息的Provide Subscriber Location消息外，还接收到了用于标识所述目标V-GMLC的V-GMLC标识。如此一来，AMF接收到来自MME的执行定位过程指示后，发起在5GS系统中的定位。在定位过程中，若AMF获得V-GMLC标识，则AMF向V-GMLC标识对应的目标V-GMLC发送所获得的UE的位置信息，从而实现了5GS系统中对UE的位置信息的上报。此外，此处的步骤1a,1b对应到TS23.271中节9.1.15的步骤2和6。然后，E-SMLC收到Location Request后，发起定位过程，对应TS23.271中节9.1.15的步骤7。
在具体实施过程中，若MME正在执行针对UE的定位过程，此时步骤2：MME接收到了E-UTRAN切换至NG-RAN的切换请求，而此时A中的定位过程还没有返回结果。即对应TS23.271中节9.1.15的步骤8中的消息，没有送达MME。或者，MME接收到了E-UTRAN切换至NG-RAN的切换请求之后，正在执行切换过程且没有完成，MME又接收到来自目标V-GMLC的提供用户位置消息的Provide Subscriber Location消息。此时MME不发起到E-SMLC的定位过程，而是执行步骤4。也就是说，在MME执行定位过程中，需要E-UTRAN切换至NG-RAN时，MME指示AMF进行针对UE的定位过程。再或者，在E-UTRAN切换至NG-RAN过程中，MME收到了位置请求，则MME指示AMF进行针对UE的定位过程。
步骤C：MME终止定位过程。步骤3，通知E-SMLC终止定位过程。此步为可选项。
步骤4：MME向目标V-GMLC发送Subscriber Location Report，其中，包含一个错误码，说明不能进行定位的原因是切换。此外，MME将用于标识AMF的AMF地址发送给目标V-GMLC。所述目标V-GMLC向AMF地址标识的AMF发送针对该UE的位置请求消息。
在具体实施过程中，步骤：MME通过N26接口指示AMF进行定位过程，具体可以是，MME将在核心网中接收到的位置服务请求发送给AMF。具体来讲，在步骤D中，步 骤5，MME通过N26接口将步骤1a中收到的位置服务请求发送给AMF。
第6步，AMF选择一个LMF，将收到的位置请求消息，发给LMF。
步骤F，就是图4中的第14步，UE定位过程。
步骤7：LMF发起定位过程。
步骤G和步骤H，是获得位置信息后的上报过程，二选一执行即可。
具体来讲，在目标侧AMF执行对UE的定位过程，并获得UE的位置信息之后，可以由EPS系统进行UE的位置信息的上报，具体如图13所示，包括：
S201：所述MME通过N26接口接收所述AMF发送的所述UE的位置信息；
S202：所述MME经由所述目标V-GMLC发送所述UE的位置信息至LCS客户端。
在具体实施过程中，步骤S201至步骤S202的具体实现过程如下：
目标侧AMF执行对UE的定位过程，并获得UE的位置信息之后，目标侧AMF通过N26接口将UE的位置信息发送给MME。然后，所述MME将所述UE的位置信息发送给目标V-GMLC，所述目标V-GMLC奖所述UE的位置信息发送至LCS CLIENT，从而实现了在5GS切换至EPS系统的过程中，通过EPS系统对UE的位置信息的上报。进一步，实现了在5GS切换至EPS系统的过程中位置服务LCS的位置连续性。
实施例四
基于与实施例三同样的发明构思，本申请实施例四还提供了一种终端位置服务的确定方法，包括：在UE由E-UTRAN切换至NG-RAN过程中，若MME需要针对所述UE的定位过程，或者，若UE由E-UTRAN切换至NG-RAN时，若MME正在执行针对所述UE的定位过程，则AMF接收来自所述MME的执行定位过程指示。也就是说，在4G系统切换至5G系统的过程中，目标侧接收来自源侧执行定位过程指示，从而由目标侧实现针对UE的定位过程，不仅保证了针对UE的位置信息的获取准确性，而且保证了系统切换过程中针对UE的LCS的连续性。
在具体实施过程中，AMF接收来自所述MME的执行定位过程指示，包括：所述AMF通过N26接口接收来自核心网的位置服务请求。
在具体实施过程中，所述方法还包括：所述AMF通过N26接口接收来自所述MME的用于标识目标V-GMLC的V-GMLC标识，以使所述目标V-GMLC向所述AMF发送针对所述UE的位置请求消息。
在具体实施过程中，请参考图14，在所述AMF通过N26接口接收来自核心网的位置服务请求之后，所述方法还包括：
S301：所述AMF发送所述位置服务请求至LMF；
S302：所述AMF接收所述LMF返回的所述UE的位置信息。
对于步骤S301至步骤S302的具体实现过程在前述部分已经详细叙述，在此就不一一赘述了。
在具体实施过程中，在所述AMF通过N26接口接收来自所述MME的执行定位过程指示，并获得所述UE的位置信息之后，所述方法还包括：所述AMF向所述目标V-GMLC发送所述UE的位置信息。
在具体实施过程中，在所述AMF通过N26接口接收来自所述MME的执行定位过程指示，并获得所述UE的位置信息之后，所述方法还包括：所述AMF通过N26接口发送所述UE的位置信息至所述MME。
实施例五
基于与实施例一同样的发明构思，本申请实施例五还提供了一种用于确定终端位置服务的AMF设备，包括：
指示单元，在UE由NG-RAN切换至E-UTRAN过程中，若所述AMF设备需要针对所述UE的定位过程，或者，若在UE由NG-RAN切换至E-UTRAN时，若所述AMF设备正在执行针对所述UE的定位过程，指示MME进行定位过程。
由于确定终端UE位置服务LCS的AMF所对应的终端UE位置服务LCS的确定方法，在前述部分已经详细描述过了，在此就不再一一赘述了。
在本申请实施例中，所述指示单元用于：通过N26接口将来自核心网的位置服务请求发送给所述MME。
在本申请实施例中，所述指示单元用于：通过重定位完成的RELOCATION COMPLETE消息携带所述位置服务请求。
在本申请实施例中，所述AMF设备还包括：转化单元，在所述指示单元通过N26接口将来自核心网的位置服务请求发送给所述MME之前，将所述位置服务请求转化为提供用户位置信息的Provide Subscriber Location消息。
在本申请实施例中，所述AMF设备还包括：第一发送单元，将V-GMLC标识发送给所述MME，以使所述MME向所述V-GMLC标识对应的目标V-GMLC发送所述UE的位置信息，其中，所述UE的位置信息是在所述AMF指示所述MME进行定位过程，所述MME所获得的。
在本申请实施例中，所述AMF设备还包括：接收单元，在所述AMF设备指示所述MME进行定位过程，所述MME获得所述UE的位置信息之后，通过所述N26接口接收所述MME发送的所述UE的位置信息；第二发送单元，经由所述目标V-GMLC发送所述UE的位置信息至LCS客户端。
实施例六
基于与实施例二同样的发明构思，本申请实施例六还提供了一种用于确定终端UE位置服务LCS的AMF设备，包括：第一接收单元，在UE由NG-RAN切换至E-UTRAN过程中，若AMF需要针对所述UE的定位过程，或者，若在UE由NG-RAN切换至E-UTRAN时，若AMF正在执行针对所述UE的定位过程，接收来自所述AMF的执行定位过程指示。
由于确定终端UE位置服务LCS的AMF所对应的终端UE位置服务LCS的确定方法，在前述部分已经详细描述过了，在此就不再一一赘述了。
在本申请实施例中，所述第一接收单元用于：通过N26接口接收来自核心网的位置服务请求。
在本申请实施例中，所述第一接收单元还用于：通过N26接口接收来自所述AMF的提供用户位置信息的Provide Subscriber Location消息，其中，所述提供用户位置信息是由所述AMF对所述位置服务请求转化得到的。
在本申请实施例中，所述第一接收单元还用于：接收所述AMF发送的拜访网关移动定位中心V-GMLC标识。
在本申请实施例中，所述MME设备还包括：第一发送单元，在所述第一接收单元通过N26接口接收来自核心网的位置服务请求之后，发送所述位置服务请求至E-SMLC；第二接收单元，用于接收所述E-SMLC返回的所述UE的位置信息。
在本申请实施例中，所述MME设备还包括：第二发送单元，若所述第一接收单元接收到所述AMF发送的所述V-GMLC标识，用于向所述V-GMLC标识对应的目标V-GMLC发送所述UE的位置信息，其中，所述UE的位置信息是由所述MME执行对所述UE的定位过程之后，所述MME所获得的位置信息。
在本申请实施例中，在所述MME设备执行对所述UE的定位过程，并获得所述UE的位置信息之后，所述MME设备还包括：第三发送单元，用于通过N26接口发送所述UE的位置信息至所述AMF。
实施例七
基于与实施例三同样的发明构思，本申请实施例七还提供了一种用于确定终端位置服务的MME设备，包括：指示单元，在UE由E-UTRAN切换至NG-RAN过程中，若所述MME设备需要针对所述UE的定位过程，或者，若UE由E-UTRAN切换至NG-RAN时，若所述MME设备正在执行针对所述UE的定位过程，指示AMF进行定位过程。
由于确定终端UE位置服务LCS的AMF所对应的终端UE位置服务LCS的确定方法，在前述部分已经详细描述过了，在此就不再一一赘述了。
在本申请实施例中，所述指示单元用于：通过N26接口将来自核心网的位置服务请求发送给所述AMF。
在本申请实施例中，所述MME设备还包括：第一接收单元，用于接收来自目标V-GMLC的提供用户位置信息的Provide Subscriber Location消息以及用于标识所述目标V-GMLC的V-GMLC标识。
在本申请实施例中，所述MME设备还包括：第一发送单元，用于向所述目标V-GMLC发送用户位置报告Subscriber Location Report消息，其中，所述用户位置报告消息包括用于表征所述MME不能对所述UE进行定位的原因是网络切换；第二发送单元，将用于标识所述AMF的AMF地址发送给所述目标V-GMLC，以使所述目标V-GMLC向所述AMF发送针对所述UE的位置请求消息。
在本申请实施例中，所述MME设备还包括：第二接收单元，在所述AMF执行对所述UE的定位过程，并获得所述UE的位置信息之后，通过N26接口接收所述AMF发送的所述UE的位置信息；第三发送单元，经由所述目标V-GMLC发送所述UE的位置信息至LCS客户端。
实施例八
基于与实施例四同样的发明构思，本申请实施例八还提供了一种用于确定终端位置服务的AMF设备，包括：第一接收单元，在UE由E-UTRAN切换至NG-RAN过程中，若MME需要针对所述UE的定位过程，或者，若UE由E-UTRAN切换至NG-RAN时，若MME正在执行针对所述UE的定位过程，接收来自所述MME的执行定位过程指示。
由于确定终端UE位置服务LCS的AMF所对应的终端UE位置服务LCS的确定方法，在前述部分已经详细描述过了，在此就不再一一赘述了。
在本申请实施例中，所述第一接收单元用于：通过N26接口接收来自核心网的位置服务请求。
在本申请实施例中，所述第一接收单元还用于：通过N26接口接收来自所述MME的用于标识目标V-GMLC的V-GMLC标识。
在本申请实施例中，所述AMF设备还包括：第一发送单元，用于发送所述位置服务 请求至LMF；第二接收单元，用于接收所述LMF返回的所述UE的位置信息。
在本申请实施例中，所述AMF设备还包括：第二发送单元，用于向所述目标V-GMLC发送所述UE的位置信息。
在本申请实施例中，所述AMF设备还包括：第三发送单元，在所述第一接收单元接收来自所述MME的执行定位过程指示，并获得所述UE的位置信息之后，通过N26接口发送所述UE的位置信息至所述MME。
实施例九
基于与实施例一同样的发明构思，请参考图15，本申请实施例九还提供了一种用于确定终端位置服务的设备，包括存储器10、处理器20及存储在存储器10上并可在处理器20上运行的计算机程序，所述处理器执行所述计算机程序时实现如上所述UE位置服务(LCS)的确定方法的步骤。
实施例十
基于与实施例一同样的发明构思，本申请实施例九还提供了一种可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如上所述的所述UE的位置信息的确定方法。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (50)

  1. 一种终端UE位置服务LCS的确定方法，其特征在于，包括：
    在UE由下一代无线接入网络NG-RAN切换至演进的统一陆地无线接入网络E-UTRAN过程中，若接入和移动性管理功能AMF需要执行针对所述UE的定位过程或者正在执行针对所述UE的定位过程，则所述AMF指示移动管理实体MME针对所述UE进行定位过程。
  2. 如权利要求1所述的方法，其特征在于，所述AMF指示MME进行定位过程，包括：
    所述AMF通过N26接口将来自核心网的位置服务请求发送给所述MME。
  3. 如权利要求2所述的方法，其特征在于，所述AMF通过重定位完成消息携带所述位置服务请求。
  4. 如权利要求2所述的方法，其特征在于，在所述AMF通过N26接口将来自核心网的位置服务请求发送给所述MME之前，所述方法还包括：
    所述AMF将所述位置服务请求转化为提供用户位置信息的消息。
  5. 如权利要求2所述的方法，其特征在于，所述方法还包括：
    所述AMF将拜访网关移动定位中心V-GMLC标识发送给所述MME，以使所述MME向所述V-GMLC标识对应的目标V-GMLC发送所述UE的位置信息，其中，所述UE的位置信息是在所述AMF指示所述MME进行定位过程，所述MME所获得的。
  6. 如权利要求5所述的方法，其特征在于，在所述AMF指示所述MME进行定位过程，所述MME获得所述UE的位置信息之后，所述方法还包括：
    所述AMF通过所述N26接口接收所述MME发送的所述UE的位置信息；
    所述AMF经由所述目标V-GMLC发送所述UE的位置信息至LCS客户端。
  7. 一种终端UE位置服务LCS的确定方法，其特征在于，包括：
    在UE由下一代无线接入网络NG-RAN切换至演进的统一陆地无线接入网络E-UTRAN过程中，若接入和移动性管理功能AMF需要执行针对所述UE的定位过程或者正在执行针对所述UE的定位过程，则移动管理实体MME接收来自所述AMF的执行定位过程指示。
  8. 如权利要求7所述的方法，其特征在于，MME接收来自所述AMF的执行定位过程指示，包括：
    所述MME通过N26接口接收来自核心网的位置服务请求。
  9. 如权利要求8所述的方法，其特征在于，在所述MME通过N26接口中接收来自核心网的位置服务请求之前，所述方法还包括：
    所述MME通过N26接口接收来自所述AMF的提供用户位置信息的消息，其中，所述提供用户位置信息的消息是由所述AMF对所述位置服务请求转化得到的。
  10. 如权利要求7所述的方法，其特征在于，所述方法还包括：
    所述MME接收所述AMF发送的拜访网关移动定位中心V-GMLC标识。
  11. 如权利要求8所述的方法，其特征在于，在所述MME通过N26接口接收来自核心网的位置服务请求之后，所述方法还包括：
    所述MME发送所述位置服务请求至演进的服务移动位置中心E-SMLC；
    所述MME接收所述E-SMLC返回的所述UE的位置信息。
  12. 如权利要求10所述的方法，其特征在于，所述方法还包括：
    若所述MME接收到所述AMF发送的所述V-GMLC标识，所述MME向所述V-GMLC标识对应的目标V-GMLC发送所述UE的位置信息，其中，所述UE的位置信息是由所述MME执行对所述UE的定位过程之后，所述MME所获得的位置信息。
  13. 如权利要求11所述的方法，其特征在于，在所述MME执行对所述UE的定位过程，并获得所述UE的位置信息之后，所述方法还包括：
    所述MME通过N26接口发送所述UE的位置信息至所述AMF。
  14. 一种终端UE位置服务LCS的确定方法，其特征在于，包括：
    在UE由演进的统一陆地无线接入网络E-UTRAN切换至下一代无线接入网络NG-RAN过程中，若移动管理实体MME需要执行针对所述UE的定位过程或者正在执行针对所述UE的定位过程，则所述MME指示接入和移动性管理功能AMF进行定位过程。
  15. 如权利要求14所述的方法，其特征在于，所述MME指示接入和移动性管理功能AMF进行定位过程，包括：
    所述MME通过N26接口将来自核心网的位置服务请求发送给所述AMF。
  16. 如权利要求14所述的方法，其特征在于，所述方法还包括：
    所述MME接收来自目标拜访网关移动定位中心V-GMLC的提供用户位置信息的消息以及用于标识所述目标V-GMLC的V-GMLC标识。
  17. 如权利要求16所述的方法，其特征在于，所述方法还包括：
    所述MME向所述目标V-GMLC发送用户位置报告消息，其中，所述用户位置报告消息包括用于表征所述MME不能对所述UE进行定位的原因是网络切换；
    所述MME将用于标识所述AMF的AMF地址发送给所述目标V-GMLC，以使所述目标V-GMLC向所述AMF发送针对所述UE的位置请求消息。
  18. 如权利要求17所述的方法，其特征在于，在所述AMF执行对所述UE的定位过程，并获得所述UE的位置信息之后，所述方法还包括：
    所述MME通过N26接口接收所述AMF发送的所述UE的位置信息；
    所述MME经由所述目标V-GMLC发送所述UE的位置信息至LCS客户端。
  19. 一种终端UE位置服务LCS的确定方法，其特征在于，包括：
    在UE由演进的统一陆地无线接入网络E-UTRAN切换至下一代无线接入网络NG-RAN过程中，若移动管理实体MME需要执行针对所述UE的定位过程或者正在执行针对所述UE的定位过程，则接入和移动性管理功能AMF接收来自所述MME的执行定位过程指示。
  20. 如权利要求19所述的方法，其特征在于，接入和移动性管理功能AMF接收来自所述MME的执行定位过程指示，包括：
    所述AMF通过N26接口接收来自核心网的位置服务请求。
  21. 如权利要求19所述的方法，其特征在于，所述方法还包括：
    所述AMF通过N26接口接收来自所述MME的用于标识目标拜访网关移动定位中心V-GMLC的V-GMLC标识。
  22. 如权利要求20所述的方法，其特征在于，在所述AMF通过N26接口接收来自核心网的位置服务请求之后，所述方法还包括：
    所述AMF发送所述位置服务请求至位置管理功能LMF；
    所述AMF接收所述LMF返回的所述UE的位置信息。
  23. 如权利要求19所述的方法，其特征在于，在所述AMF接收来自所述MME的执行定位过程指示，并获得所述UE的位置信息之后，所述方法还包括：
    所述AMF向所述目标V-GMLC发送所述UE的位置信息。
  24. 如权利要求22所述的方法，其特征在于，在所述AMF接收来自所述MME的执行定位过程指示，并获得所述UE的位置信息之后，所述方法还包括：
    所述AMF通过N26接口发送所述UE的位置信息至所述MME。
  25. 一种用于确定终端UE位置服务LCS的接入和移动性管理功能AMF设备，其特征在于，包括：
    指示单元，在UE由下一代无线接入网络NG-RAN切换至演进的统一陆地无线接入网络E-UTRAN过程中，若所述AMF设备需要执行针对所述UE的定位过程或者正在执行针对所述UE的定位过程，指示移动管理实体MME进行定位过程。
  26. 如权利要求25所述的AMF设备，其特征在于，所述指示单元用于：
    通过N26接口将来自核心网的位置服务请求发送给所述MME。
  27. 如权利要求26所述的AMF设备，其特征在于，所述指示单元用于：
    通过重定位完成消息携带所述位置服务请求。
  28. 如权利要求25所述的AMF设备，其特征在于，所述AMF设备还包括：
    转化单元，在所述指示单元通过N26接口将来自核心网的位置服务请求发送给所述MME之前，将所述位置服务请求转化为提供用户位置信息的消息。
  29. 如权利要求26所述的AMF设备，其特征在于，所述AMF设备还包括：
    第一发送单元，将拜访网关移动定位中心V-GMLC标识发送给所述MME，以使所述MME向所述V-GMLC标识对应的目标V-GMLC发送所述UE的位置信息，其中，所述UE的位置信息是在所述AMF指示所述MME进行定位过程，所述MME所获得的。
  30. 如权利要求29所述的AMF设备，其特征在于，所述AMF设备还包括：
    接收单元，在所述AMF设备指示所述MME进行定位过程，所述MME获得所述UE的位置信息之后，通过所述N26接口接收所述MME发送的所述UE的位置信息；
    第二发送单元，经由所述目标V-GMLC发送所述UE的位置信息至LCS客户端。
  31. 一种用于确定终端UE位置服务LCS的移动管理实体MME设备，其特征在于，包括：
    第一接收单元，在UE由下一代无线接入网络NG-RAN切换至演进的统一陆地无线接入网络E-UTRAN过程中，若接入和移动性管理功能AMF需要执行针对所述UE的定位过程或者正在执行针对所述UE的定位过程，接收来自所述AMF的执行定位过程指示。
  32. 如权利要求31所述的MME设备，其特征在于，所述第一接收单元用于：
    通过N26接口接收来自核心网的位置服务请求。
  33. 如权利要求32所述的MME设备，其特征在于，所述第一接收单元还用于：
    通过N26接口接收来自所述AMF的提供用户位置信息的消息，其中，所述提供用户位置信息的消息是由所述AMF对所述位置服务请求转化得到的。
  34. 如权利要求31所述的MME设备，其特征在于，所述第一接收单元还用于：
    接收所述AMF发送的拜访网关移动定位中心V-GMLC标识。
  35. 如权利要求32所述的MME设备，其特征在于，所述MME设备还包括：
    第一发送单元，在所述第一接收单元通过N26接口接收来自核心网的位置服务请求之后，发送所述位置服务请求至演进的服务移动位置中心E-SMLC；
    第二接收单元，用于接收所述E-SMLC返回的所述UE的位置信息。
  36. 如权利要求34所述的MME设备，其特征在于，所述MME设备还包括：
    第二发送单元，若所述第一接收单元接收到所述AMF发送的所述V-GMLC标识，用于向所述V-GMLC标识对应的目标V-GMLC发送所述UE的位置信息，其中，所述UE的位置信息是由所述MME执行对所述UE的定位过程之后，所述MME所获得的位置信息。
  37. 如权利要求35所述的MME设备，其特征在于，在所述MME设备执行对所述UE的定位过程，并获得所述UE的位置信息之后，所述MME设备还包括：
    第三发送单元，用于通过N26接口发送所述UE的位置信息至所述AMF。
  38. 一种用于确定终端UE位置服务LCS的移动管理实体MME设备，其特征在于，包括：
    指示单元，在UE由演进的统一陆地无线接入网络E-UTRAN切换至下一代无线接入网络NG-RAN过程中，若所述MME设备需要执行针对所述UE的定位过程或者正在执行针对所述UE的定位过程，指示接入和移动性管理功能AMF进行定位过程。
  39. 如权利要求38所述的MME设备，其特征在于，所述指示单元用于：
    通过N26接口将来自核心网的位置服务请求发送给所述AMF。
  40. 如权利要求38所述的MME设备，其特征在于，所述MME设备还包括：
    第一接收单元，用于接收来自目标拜访网关移动定位中心V-GMLC的提供用户位置信息的消息以及用于标识所述目标V-GMLC的V-GMLC标识。
  41. 如权利要求40所述的MME设备，其特征在于，所述MME设备还包括：
    第一发送单元，用于向所述目标V-GMLC发送用户位置报告消息，其中，所述用户位置报告消息包括用于表征所述MME不能对所述UE进行定位的原因是网络切换；
    第二发送单元，将用于标识所述AMF的AMF地址发送给所述目标V-GMLC，以使所述目标V-GMLC向所述AMF发送针对所述UE的位置请求消息。
  42. 如权利要求41所述的MME设备，其特征在于，所述MME设备还包括：
    第二接收单元，在所述AMF执行对所述UE的定位过程，并获得所述UE的位置信息之后，通过N26接口接收所述AMF发送的所述UE的位置信息；
    第三发送单元，经由所述目标V-GMLC发送所述UE的位置信息至LCS客户端。
  43. 一种用于确定终端UE位置服务LCS的接入和移动性管理功能AMF设备，其特征在于，包括：
    第一接收单元，在UE由演进的统一陆地无线接入网络E-UTRAN切换至下一代无线接入网络NG-RAN过程中，若移动管理实体MME需要执行针对所述UE的定位过程或者正在执行针对所述UE的定位过程，接收来自所述MME的执行定位过程指示。
  44. 如权利要求43所述的AMF设备，其特征在于，所述第一接收单元用于：
    通过N26接口接收来自核心网的位置服务请求。
  45. 如权利要求43所述的AMF设备，其特征在于，所述第一接收单元还用于：
    通过N26接口接收来自所述MME的用于标识目标拜访网关移动定位中心V-GMLC的V-GMLC标识。
  46. 如权利要求44所述的AMF设备，其特征在于，所述AMF设备还包括：
    第一发送单元，用于发送所述位置服务请求至位置管理功能LMF；
    第二接收单元，用于接收所述LMF返回的所述UE的位置信息。
  47. 如权利要求43所述的AMF设备，其特征在于，所述AMF设备还包括：
    第二发送单元，用于向所述目标V-GMLC发送所述UE的位置信息。
  48. 如权利要求46所述的AMF设备，其特征在于，所述AMF设备还包括：
    第三发送单元，在所述第一接收单元接收来自所述MME的执行定位过程指示，并获得所述UE的位置信息之后，通过N26接口发送所述UE的位置信息至所述MME。
  49. 一种用于确定终端UE位置服务LCS的设备，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，其特征在于，所述处理器执行所述计算机程序时实现权利要求1至24任一权项所述方法的步骤。
  50. 一种可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现权利要求1至24任一权项所述方法的步骤。
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CN113225668B (zh) * 2020-02-05 2022-09-20 维沃移动通信有限公司 位置信息获取方法、发送方法、终端和控制面节点
WO2021163977A1 (zh) * 2020-02-20 2021-08-26 华为技术有限公司 一种网络设备切换的方法及装置
CN114080021B (zh) * 2020-08-19 2023-02-17 大唐移动通信设备有限公司 一种获得终端的地理位置信息的方法及装置
CN114125951A (zh) * 2020-08-25 2022-03-01 华为技术有限公司 一种定位方法及相关装置
CN117479243A (zh) * 2022-07-22 2024-01-30 华为技术有限公司 一种用于定位的方法和装置
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101287291A (zh) * 2007-04-12 2008-10-15 阿尔卡特朗讯公司 支持接入系统之间移动性的系统架构中的移动性管理方法
CN101686540A (zh) * 2008-09-27 2010-03-31 华为技术有限公司 位置业务处理方法、装置及系统
US20110256873A1 (en) * 2008-12-23 2011-10-20 Telefonaktiebolaget Lm Ericsson (Publ) Maintaining current cell location information in a cellular access network
CN104349390A (zh) * 2013-07-26 2015-02-11 中国移动通信集团公司 融合mme/sgsn设备内网间互操作的方法及装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104093124B (zh) * 2009-03-30 2019-01-04 中兴通讯股份有限公司 位置服务提供方法
US20160286447A1 (en) * 2015-03-27 2016-09-29 Qualcomm Incorporated Techniques for maintaining data continuity in offloading wireless communications

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101287291A (zh) * 2007-04-12 2008-10-15 阿尔卡特朗讯公司 支持接入系统之间移动性的系统架构中的移动性管理方法
CN101686540A (zh) * 2008-09-27 2010-03-31 华为技术有限公司 位置业务处理方法、装置及系统
US20110256873A1 (en) * 2008-12-23 2011-10-20 Telefonaktiebolaget Lm Ericsson (Publ) Maintaining current cell location information in a cellular access network
CN104349390A (zh) * 2013-07-26 2015-02-11 中国移动通信集团公司 融合mme/sgsn设备内网间互操作的方法及装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
3GPP WORKING GROUP: "Technical Specification Group Services and System Aspects, Study on Cellular loT Support and Evolution for the 5G System(Release 16", 3GPP TR 23.724, 30 April 2018 (2018-04-30), XP051437422 *

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