WO2025015482A1 - 通信控制方法及装置、核心网设备、通信设备、通信系统、存储介质 - Google Patents

通信控制方法及装置、核心网设备、通信设备、通信系统、存储介质 Download PDF

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Publication number
WO2025015482A1
WO2025015482A1 PCT/CN2023/107596 CN2023107596W WO2025015482A1 WO 2025015482 A1 WO2025015482 A1 WO 2025015482A1 CN 2023107596 W CN2023107596 W CN 2023107596W WO 2025015482 A1 WO2025015482 A1 WO 2025015482A1
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WO
WIPO (PCT)
Prior art keywords
network element
user plane
message
information
service
Prior art date
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PCT/CN2023/107596
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English (en)
French (fr)
Inventor
毛玉欣
沈洋
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to PCT/CN2023/107596 priority Critical patent/WO2025015482A1/zh
Priority to CN202380010127.9A priority patent/CN117099469A/zh
Publication of WO2025015482A1 publication Critical patent/WO2025015482A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/14—Mobility data transfer between corresponding nodes

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a communication control method and apparatus, core network equipment, communication equipment, communication system, and storage medium.
  • positioning services include regulatory positioning services and commercial positioning services.
  • positioning can be supported on the user plane connection between the terminal and the core network element, where the terminal and the core network element can use the user plane connection to transmit auxiliary service information and Long Term Evolution Positioning Protocol (LPP) messages.
  • LPP Long Term Evolution Positioning Protocol
  • the embodiments of the present disclosure provide a communication control method, apparatus, core network device, device, chip system, storage medium, computer program and computer program product, which can be applied in the field of communication technology to solve the technical problem that "the user plane connection established based on the user plane path cannot support the effective implementation of the first service".
  • the present disclosure proposes a communication control method and device, core network equipment, communication equipment, a communication system, and a storage medium.
  • a communication control method is proposed, which is executed by a first network element, including: receiving first information related to a user plane path sent by a second network element, wherein the user plane path is used to establish a user plane connection, and the user plane connection is used for a first service.
  • a communication control method is proposed, which is executed by a second network element, including: sending first information related to a user plane path to a first network element, wherein the user plane path is used to establish a user plane connection, and the user plane connection is used for a first service.
  • a communication control device including: a transceiver module, used to receive first information related to a user plane path sent by a second network element, wherein the user plane path is used to establish a user plane connection, and the user plane connection is used for a first service.
  • a communication control device including: a transceiver module, used to send first information related to a user plane path to a first network element, wherein the user plane path is used to establish a user plane connection, and the user plane connection is used for a first service.
  • a core network device comprising: a first network element and a second network element; wherein the second network element is used to send first information related to a user plane path to the first network element, wherein the user plane path is used to establish a user plane connection, and the user plane connection is used for a first service; and the first network element is used to receive the first information related to the user plane path sent by the second network element.
  • a communication device comprising: one or more processors; wherein the processor is used to call instructions so that the communication device executes the communication control method of any one of the first aspect and the second aspect.
  • a communication system includes a first network element, a second network element, a third network element, a fourth network element and/or a terminal, wherein the first network element is configured to implement the communication control method of the first aspect, and the second network element is configured to implement the communication control method of the second aspect.
  • a storage medium stores instructions, and wherein when the instructions are executed on a communication device, the communication device executes a communication control method as described in any one of the first and second aspects.
  • FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
  • FIG2A is an interactive schematic diagram of a communication control method according to an embodiment of the present disclosure.
  • FIG2B is an interactive schematic diagram of a communication control method according to an embodiment of the present disclosure.
  • FIG2C is an interactive schematic diagram of a communication control method according to another embodiment of the present disclosure.
  • FIG3A is an interactive schematic diagram of a communication control method according to another embodiment of the present disclosure.
  • FIG3B is an interactive schematic diagram of a communication control method according to another embodiment of the present disclosure.
  • FIG3C is an interactive schematic diagram of a communication control method according to yet another embodiment of the present disclosure.
  • FIG3D is an interactive schematic diagram of a communication control method according to yet another embodiment of the present disclosure.
  • FIG4A is an interactive schematic diagram of a communication control method according to another embodiment of the present disclosure.
  • FIG4B is an interactive schematic diagram of a communication control method according to another embodiment of the present disclosure.
  • FIG4C is an interactive schematic diagram of a communication control method according to yet another embodiment of the present disclosure.
  • FIG4D is an interactive schematic diagram of a communication control method according to yet another embodiment of the present disclosure.
  • FIG5A is an interactive schematic diagram of a communication control method shown in yet another embodiment of the present disclosure.
  • FIG5B is an interactive schematic diagram of a communication control method shown in yet another embodiment of the present disclosure.
  • FIG5C is an interactive schematic diagram of a communication control method shown in yet another embodiment of the present disclosure.
  • FIG6A is a schematic diagram of the structure of a communication control device proposed in an embodiment of the present disclosure.
  • FIG6B is a schematic diagram of the structure of a communication control device provided in an embodiment of the present disclosure.
  • FIG7 is a schematic diagram of the structure of a core network device proposed in an embodiment of the present disclosure.
  • FIG8A is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure.
  • FIG8B is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure.
  • the embodiments of the present disclosure provide a communication control method and device, a communication device, a communication system, and a storage medium.
  • the terms such as the communication control method, the information processing method, and the communication method can be replaced with each other, the terms such as the communication control device, the information processing device, and the communication device can be replaced with each other, and the terms such as the information processing system and the communication system can be replaced with each other.
  • each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined.
  • a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged.
  • the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined, for example, some or all of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
  • elements expressed in the singular form such as “a”, “an”, “the”, “above”, “said”, “aforementioned”, “this”, etc., may mean “one and only one", or “one or more”, “at least one”, etc.
  • the noun after the article may be understood as a singular expression or a plural expression.
  • plurality refers to two or more.
  • the terms “at least one of”, “at least one of”, “at least one of”, “one or more”, “a plurality of”, “multiple”, etc. can be used interchangeably.
  • descriptions such as “at least one of A, B, C...”, “A and/or B and/or C...”, etc. include the situation where any one of A, B, C... exists alone, and also include the situation where any multiple of A, B, C... exist in any combination, and each situation can exist alone; for example, “at least one of A, B, C” includes the situation where A exists alone, B exists alone, C exists alone, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B and C; for example, A and/or B includes the situation where A exists alone, B exists alone, and the combination of A and B.
  • the description methods such as “in one case A, in another case B", “in response to one case A, in response to another case B”, etc. may include the following technical solutions according to the situation: A is executed independently of B, that is, in some embodiments A; B is executed independently of A, that is, in some embodiments B; A and B are selectively executed, that is, selected from A and B in some embodiments; A and B are both executed, that is, A and B in some embodiments.
  • branches such as A, B, C, etc., it is similar to the above.
  • prefixes such as “first” and “second” in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute restrictions on the position, order, priority, quantity or content of the description objects.
  • the statement of the description object refers to the description in the context of the claims or embodiments, and should not constitute unnecessary restrictions due to the use of prefixes.
  • the description object is a "field”
  • the ordinal number before the "field” in the "first field” and the "second field” does not limit the position or order between the "fields”
  • the "first” and “second” do not limit whether the "fields” they modify are in the same message, nor do they limit the order of the "first field” and the "second field”.
  • the description object is a "level”
  • the ordinal number before the "level” in the “first level” and the “second level” does not limit the priority between the "levels”.
  • the number of description objects is not limited by the ordinal number, and can be one or more. Taking the "first device” as an example, the number of "devices” can be one or more.
  • the objects modified by different prefixes may be the same or different. For example, if the description object is "device”, then the “first device” and the “second device” may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information”, then the "first information” and the “second information” may be the same information or different information, and their contents may be the same or different.
  • “including A”, “comprising A”, “used to indicate A”, and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
  • terms such as “greater than”, “greater than or equal to”, “not less than”, “more than”, “more than or equal to”, “not less than”, “higher than”, “higher than or equal to”, “not lower than”, and “above” can be replaced with each other, and terms such as “less than”, “less than or equal to”, “not greater than”, “less than”, “less than or equal to”, “no more than”, “lower than”, “lower than or equal to”, “not higher than”, and “below” can be replaced with each other.
  • devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments.
  • Terms such as “device”, “equipment”, “device”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, and “subject” can be used interchangeably.
  • network may be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).
  • terminal In some embodiments, the terms "terminal”, “terminal device”, “user equipment (UE)”, “user terminal” “mobile station (MS)”, “mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client and the like can be used interchangeably.
  • acquisition of data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
  • data, information, etc. may be obtained with the user's consent.
  • each element, each row, or each column in the table of the embodiments of the present disclosure may be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns may also be implemented as an independent embodiment.
  • the corresponding relationships shown in the tables in the present disclosure can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which are not limited by the present disclosure.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values or representations of the parameters can also be other values or representations that can be understood by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables.
  • the predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.
  • FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
  • a communication system 100 may include a terminal 101 and a core network device 102.
  • the terminal 101 may include, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), and at least one of a wireless terminal device in a smart home (smart home), but is not limited to these.
  • a mobile phone a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless
  • the core network device 102 may be a device including a first network element 1021, a second network element 1022, a third network element 1023, a fourth network element 1024, etc., or may be a plurality of devices or a device group, including all or part of the first network element 1021, the second network element 1022, the third network element 1023, and the fourth network element 1024.
  • the network element may be virtual or physical.
  • the core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).
  • EPC Evolved Packet Core
  • 5GCN 5G Core Network
  • NGC Next Generation Core
  • the first network element 1021 and the third network element 1023 may be connected or not connected.
  • the first network element 1021 is, for example, an access and mobility management function (AMF) network element.
  • AMF access and mobility management function
  • the first network element 1021 is used to provide access and mobility management functions, and the name is not limited thereto.
  • the second network element 1022 is, for example, a session management function (SMF) network element.
  • SMS session management function
  • the second network element 1022 is used to provide a session management function, and the name is not limited thereto.
  • the third network element 1023 is, for example, a user plane function (UPF) network element.
  • UPF user plane function
  • the third network element 1023 is used to provide user plane functions, and the name is not limited thereto.
  • the fourth network element 1024 is, for example, a location management function (LMF) network element that provides positioning services.
  • LMF location management function
  • the fourth network element 1024 is used to provide a location management function, and the name is not limited thereto.
  • the AMF network element and the UPF network element may or may not be connected.
  • the terminal 101 and the core network device 102 can be connected through an access network device.
  • the access network device is, for example, a node or device that accesses the terminal to a wireless network.
  • the access network device may include an evolved Node B (eNB), a next generation evolved Node B (ng-eNB), a next generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), At least one of wireless backhaul equipment, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in 6G communication system, open base station (Open RAN), cloud base station (Cloud RAN), base station in other communication systems, and access node in wireless fidelity (WiFi) system, but not limited thereto.
  • eNB evolved Node B
  • ng-eNB next generation evolved Node B
  • gNB next generation Node B
  • NB node
  • the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure.
  • a person of ordinary skill in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.
  • the following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or part of the subject, but are not limited thereto.
  • the subjects shown in FIG1 are examples, and the communication system may include all or part of the subjects in FIG1 , or may include other subjects other than FIG1 , and the number and form of the subjects are arbitrary, and the connection relationship between the subjects is an example, and the subjects may be connected or disconnected, and the connection may be in any manner, which may be a direct connection or an indirect connection, and may be a wired connection or a wireless connection.
  • the embodiments of the present disclosure may be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), G
  • GSM registered trademark
  • CDMA2000 Code Division Multiple Access
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX (registered trademark)
  • IEEE 802.20 Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine-to-Machine (M2M) system, Internet of Things (IoT) system
  • PLMN Public Land Mobile Network
  • Access and mobility management function (AMF) network element 1. Access and mobility management function (AMF) network element.
  • AMF Access and mobility management function
  • the AMF network element is a logical node function network element on the core network side. It is the access point of the terminal and wireless core network control plane. It receives all connection and session related information from the user equipment and performs registration, connection, reachability and mobility management. In addition, the AMF network element provides a session management message transmission channel for the terminal equipment and the session management function (SMF) equipment, and provides authentication and authorization functions for the user access.
  • SMF session management function
  • LMF Location management function
  • the LMF is located in the local radio access network (RAN) or the core network (CN) and is used to provide location management function services to the UE.
  • RAN local radio access network
  • CN core network
  • User plane function (UPF) network elements including routing and forwarding of user data packets, data interaction with external data networks, user plane quality of service QoS processing, flow control rule implementation (such as gating, redirection, traffic steering), etc.
  • positioning services include regulatory positioning services and commercial positioning services.
  • positioning can be supported on the user plane connection between the UE and the LMF, where the LMF and the UE can use the user plane connection to transmit auxiliary service information and Long Term Evolution LTE Positioning Protocol (LTEPositioning Protocol, LPP) messages.
  • LTP Long Term Evolution LTE Positioning Protocol
  • positioning can be achieved through a user plane connection, and the LMF can act as an application server and be deployed within the 5GC.
  • the user plane connection between the terminal and the LMF can be established within a protocol data unit (PDU) session, and the user plane path between the terminal and the LMF is used to establish the user plane connection.
  • PDU protocol data unit
  • the UE can establish a PDU session for user plane positioning based on local configuration or user equipment routing selection policy (UE Routing Selection Policy, URSP) using PDU session parameters related to user plane positioning services, such as dedicated data network name (Data Network Name, DNN) and single network slice selection assistance information (S-NSSAI).
  • UE Routing Selection Policy URSP
  • URSP user equipment routing selection policy
  • PDU session parameters related to user plane positioning services such as dedicated data network name (Data Network Name, DNN) and single network slice selection assistance information (S-NSSAI).
  • SMF can select a PDU session anchor UPF (PDU session anchor UPF, PSA UPF, located at the central site or local site) connected to LMF for this PDU session based on S-NSSAI, DNN and UE location information.
  • PDU session anchor UPF PDU session anchor UPF, PSA UPF, located at the central site or local site
  • the selection of the local PSA for user plane positioning can be determined by the Internet Protocol Address (IP address), network prefix and its Data Network Access Identifier (DNAI) of the local LMF pre-configured in the SMF for positioning services within a specific service area.
  • IP address Internet Protocol Address
  • DNAI Data Network Access Identifier
  • the PDU session used for user plane positioning is managed by SMF, and LMF is selected by AMF. Therefore, there may be a misalignment between the user plane path managed by SMF and the LMF selected by AMF, resulting in the user plane path managed by SMF being unable to be effectively connected to the LMF network element, which will affect the effective implementation of the services supported by the user plane connection.
  • FIG2A is an interactive schematic diagram of a communication control method according to an embodiment of the present disclosure. As shown in FIG2A , the present disclosure embodiment relates to a communication control method, which can be used in a communication system 100, and the method includes:
  • Step S2101 A first network element sends a first message to a second network element.
  • the first message is used to create a session management SM context for a protocol data unit PDU session, and the PDU session can be used to access the first service.
  • the first network element is, for example, an AMF network element.
  • the second network element is, for example, an SMF network element.
  • the first network element may send a first message to the second network element.
  • the AMF network element may send a first message to the SMF network element.
  • the first message may be, for example, Nsmf_PDUSession_CreateSMContext Request, which may include first information, and the first information may be, for example, LMF information.
  • the PDU session may be initiated and established by the terminal.
  • Step S2102 The second network element receives a first message sent by the first network element.
  • the SMF network element may receive a first message sent by the AMF network element.
  • the second network element may determine to indicate first information related to the user plane path to the first network element.
  • Step S2103 The second network element sends a second message to the first network element by invoking the N1N2 interactive message forwarding service of the first network element.
  • the second message includes: first information related to the user plane path and a PDU session establishment accept message.
  • the second message is, for example, a Namf_Communication_N1N2MessageTransfer message
  • the Namf_Communication_N1N2MessageTransfer message may carry the first information related to the user plane path.
  • the user plane path refers to the user plane path established by the SMF network element.
  • the user plane path is used to establish a user plane connection, and the user plane connection is used for the first service.
  • the first service is a user plane positioning service.
  • the first service may also be any other possible service.
  • the positioning service may share DNN and S-NSSAI with other services, that is, the positioning service may be deployed on the same DNN and/or S-NSSAI as other services.
  • the user plane connection established based on the user plane path can be enabled to support effective implementation of the user plane positioning service.
  • the first information may be used to select a fourth network element adapted to the user plane path.
  • the first information may be referenced in the process of selecting the fourth network element adapted to the user plane path.
  • the fourth network element adapted to the user plane path may refer to the user plane path being able to effectively connect to the adapted fourth network element.
  • the fourth network element is, for example, a LMF network element.
  • the first information may be used to describe information related to a user plane path.
  • the first information may be used to initially select a LMF or to modify the LMF.
  • the AMF network element can initially select the LMF or modify the LMF based on the first information sent by the SMF network element.
  • the first information includes at least one of the following: a data network access identifier (DNAI) associated with a third network element, wherein the third network element is selected for a protocol data unit (PDU) session for the first service; an Internet Protocol (IP) address range accessible to the third network element; and user plane information of a fourth network element currently selected for the first service, so that the first network element can accurately obtain information about the user plane path established by the second network element.
  • DNAI data network access identifier
  • IP Internet Protocol
  • Step S2104 The first network element receives a second message sent by the second network element.
  • the AMF network element may receive a second message sent by the SMF network element.
  • the AMF network element can obtain first information related to the user plane path from the second message.
  • the AMF network element can determine, based on the first information related to the user plane path, a fourth network element to which the user plane path can be effectively connected, which may be a fourth network element suitable for the user plane path.
  • Step S2105 The first network element updates the locally stored information related to the fourth network element according to the user plane information, wherein the first information is the user plane information of the fourth network element currently selected for the first service.
  • the first information may be user plane information of the fourth network element currently selected for the first service.
  • the first network element may pre-store some information related to the fourth network element locally. Therefore, if it is determined that the first information is the user plane information of the fourth network element currently selected for the first service, the first network element may modify the locally stored information related to the fourth network element into the user plane information of the fourth network element.
  • the currently selected fourth network element may be, for example, a fourth network element that has been selected for the first service.
  • the fourth network element selected in the process of executing the user plane positioning service last time may be used as the currently selected fourth network element.
  • the second network element may also determine the user plane path for the first service when accepting the establishment of the PDU session, and the LMF network element connected to the user plane path may also be used as the currently selected fourth network element.
  • the currently selected fourth network element is, for example, the currently selected LMF network element.
  • the user plane information may be, for example, the user plane location address of the LMF network element, security-related information, etc.
  • the user plane information can be directly stored locally in the AMF network element.
  • the information related to the LMF network element stored locally in the AMF network element can be updated to the user plane information.
  • the first network element updates the locally stored information related to the fourth network element according to the user plane information, so that the user plane information of the fourth network element currently selected for the first service is locally stored in the first network element, thereby improving the accuracy of establishing the user plane connection for the first service to support the effective implementation of the first service.
  • Step S2106 The first network element selects or reselects a target fourth network element based on the first information, wherein the first information includes: a DNAI associated with the third network element, and/or an IP address range accessible to the third network element.
  • the first information does not include user plane information of the fourth network element currently selected for the first service, it means that the target fourth network element may not have been selected yet, or the currently selected fourth network element may not necessarily be adapted to the user plane path managed by the second network element.
  • a target fourth network element can be selected or reselected, and the DNAI associated with the third network element and/or the IP address range accessible to the third network element can be considered during the selection or reselection process, so that the selected or reselected target fourth network element is adapted to the user plane path managed by the second network element.
  • the currently selected fourth network element and the target fourth network element may be different.
  • the first information may be a DNAI associated with the third network element.
  • the first information may be an IP address range accessible to the third network element.
  • the first information may include a DNAI associated with the third network element and an IP address range accessible to the third network element.
  • the first network element may select or reselect a target fourth network element based on the first information.
  • the target fourth network element may be a fourth network element adapted to the user plane path.
  • the target fourth network element may be a LMF network element adapted to the user plane path.
  • selecting a target fourth network element may be understood as preliminarily selecting a target fourth network element from a plurality of candidate fourth network elements.
  • reselecting a target fourth network element may be understood as reselecting a target fourth network element from a plurality of candidate fourth network elements.
  • selecting or reselecting the target fourth network element may be implemented locally in the first network element.
  • the target fourth network element is selected or reselected by a fifth network element, wherein the fifth network element is used to provide a network storage function.
  • the fifth network element may provide an interface service, and the first network element may call the interface service to implement the fifth network element.
  • the network element selects or reselects a target fourth network element.
  • the fifth network element may be, for example, a network repository function (NRF) network element.
  • NRF network repository function
  • the AMF network element can call the Nnrf_NFDiscovery service and refer to the user plane path information during the LMF network element selection process.
  • the flexibility of selecting or reselecting the target fourth network element can be effectively improved, and it can be effectively applied to personalized communication scenarios.
  • a candidate fourth network element corresponding to the DNAI associated with the third network element can be selected or reselected from multiple candidate fourth network elements, and the corresponding candidate fourth network element can be used as the target fourth network element, thereby accurately and conveniently selecting or reselecting the target fourth network element based on the DNAI associated with the third network element.
  • each candidate fourth network element can correspond to a candidate DNAI
  • the DNAI associated with the third network element can be matched with the candidate DNAI, and a matching candidate DNAI can be selected or reselected from multiple candidate DNAIs, and the candidate fourth network element corresponding to the matching candidate DNAI can be used as the target fourth network element.
  • the first information is an IP address range accessible to a third network element
  • a candidate fourth network element to which an IP address belonging to the IP address range belongs can be selected or reselected from multiple candidate fourth network elements, and the candidate fourth network element can be used as the target fourth network element, thereby accurately and conveniently selecting or reselecting the target fourth network element based on the IP address range accessible to the third network element.
  • each candidate fourth network element may correspond to an IP address, and an IP address belonging to the IP address range may be determined, and the candidate fourth network element to which the IP address belongs may be used as the target fourth network element.
  • the first information includes: a DNAI associated with a third network element and an IP address range accessible to the third network element. Then, a candidate fourth network element corresponding to the DNAI associated with the third network element and whose IP address belongs to the IP address range can be selected or reselected from multiple candidate fourth network elements, and the selected or reselected candidate fourth network element can be used as the target fourth network element, thereby accurately and conveniently selecting or reselecting the target fourth network element based on the DNAI associated with the third network element and the IP address range accessible to the third network element.
  • Step S2107 The first network element sends a sixth message to the target fourth network element, where the sixth message is used to request the target fourth network element to establish a user plane connection.
  • the message used to request the target fourth network element to establish a user plane connection may be referred to as a sixth message.
  • the first network element may also send a sixth message to the target fourth network element, wherein the sixth message is used to request the target fourth network element to establish a user plane connection, so as to timely establish a user plane connection between the terminal and the target fourth network element, so as to support the first service based on the user plane connection.
  • the AMF network element may send a sixth message to the selected or reselected LMF network element to request the selected or reselected LMF network element to establish a user plane connection.
  • Step S2108 The first network element sends user plane information related to the target fourth network element to the terminal.
  • the user plane information is used to establish a user plane connection between the terminal and the target fourth network element.
  • the user plane information related to the target fourth network element may be, for example, the user plane location address of the target fourth network element, security-related information, etc.
  • the AMF network element can send the user plane location address, security-related information, etc. of the selected or reselected target LMF network element to the terminal to trigger the establishment of a user plane connection between the terminal and the target fourth network element, so as to timely establish a user plane connection between the terminal and the target fourth network element to support the first service based on the user plane connection.
  • the communication control method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2108.
  • step S2101 may be implemented as an independent embodiment
  • step S2102 may be implemented as an independent embodiment, and so on, but not limited thereto.
  • Steps S2101+S2102 may be implemented as independent embodiments
  • steps S2101+S2102+S2103 may be implemented as independent embodiments, but not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • the first information related to the user plane path is managed during the PDU session establishment process.
  • the first information related to the user plane path can be updated locally in the first network element during the PDU session establishment process, or the fourth network element can be selected or reselected with reference to the first information related to the user plane path during the PDU session establishment process, so that the selected or reselected fourth network element can support the effective connection of the user plane path, and the user plane connection established based on the user plane path can support the effective implementation of the first service.
  • FIG2B is an interactive schematic diagram of a communication control method according to an embodiment of the present disclosure. As shown in FIG2B , the present disclosure embodiment relates to a communication control method, which can be used in a communication system 100, and the method includes:
  • Step S2201 The first network element sends a third message to the second network element.
  • the third message is used to request an update of the SM context for a PDU session, and the PDU session can be used to access the first service.
  • the third message may be, for example, a Nsmf_PDUSession_UpdateSMContext Request message.
  • the AMF network element may send a Nsmf_PDUSession_UpdateSMContext Request message to the SMF network element.
  • Step S2202 The second network element receives a third message sent by the first network element.
  • the second network element may receive a third message sent by the first network element.
  • the SMF network element can receive the Nsmf_PDUSession_UpdateSMContext Request message sent by the AMF network element.
  • Step S2203 The second network element sends a fourth message to the first network element.
  • the fourth message is used to indicate a response to update the SM context for the PDU session.
  • the fourth message may carry first information related to the user plane path.
  • the fourth message may be, for example, a Nsmf_PDUSession_UpdateSMContext Response message.
  • the Nsmf_PDUSession_UpdateSMContext Response message may carry first information related to the user plane path.
  • the user plane path is used to establish a user plane connection, and the user plane connection is used for the first service.
  • the first service is a user plane positioning service.
  • the first service may also be any other possible service.
  • the first information may be used to select a fourth network element adapted to the user plane path.
  • the first information may be referenced in the process of selecting the fourth network element adapted to the user plane path.
  • the fourth network element adapted to the user plane path may refer to the user plane path being able to effectively connect to the adapted fourth network element.
  • the fourth network element is, for example, a LMF network element.
  • the first information may be used to describe information related to a user plane path.
  • the first information may be used to initially select a LMF or to modify the LMF.
  • the AMF network element can initially select the LMF or modify the LMF based on the first information sent by the SMF network element.
  • the first information includes at least one of the following: a data network access identifier DNAI associated with a third network element, wherein the third network element is selected for a protocol data unit PDU session for the first service; an Internet Protocol IP address range accessible to the third network element; user plane information of a fourth network element currently selected for the first service, so that the first network element can accurately obtain information about the user plane path established by the second network element.
  • a data network access identifier DNAI associated with a third network element, wherein the third network element is selected for a protocol data unit PDU session for the first service
  • an Internet Protocol IP address range accessible to the third network element
  • user plane information of a fourth network element currently selected for the first service so that the first network element can accurately obtain information about the user plane path established by the second network element.
  • Step S2204 The first network element receives the fourth message sent by the second network element.
  • the AMF network element can receive the Nsmf_PDUSession_UpdateSMContext Response message sent by the SMF network element.
  • the AMF network element can obtain first information related to the user plane path based on the Nsmf_PDUSession_UpdateSMContext Response message.
  • Step S2205 The first network element updates the locally stored information related to the fourth network element according to the user plane information, wherein the first information is the user plane information of the fourth network element currently selected for the first service.
  • Step S2206 The first network element selects or reselects a target fourth network element based on the first information, wherein the first information includes: a DNAI associated with the third network element, and/or an IP address range accessible to the third network element.
  • the currently selected fourth network element and the target fourth network element may be different.
  • Step S2207 The first network element sends a sixth message to the target fourth network element, where the sixth message is used to request the target fourth network element to establish a user plane connection.
  • Step S2208 The first network element sends user plane information related to the target fourth network element to the terminal.
  • the user plane information is used to establish a user plane connection between the terminal and the target fourth network element.
  • steps S2205 to S2208 please refer to the above embodiment and will not be repeated here.
  • the communication control method involved in the embodiment of the present disclosure may include at least one of step S2201 to step S2208.
  • step S2201 can be implemented as an independent embodiment
  • step S2202 can be implemented as an independent embodiment, and so on, but not limited thereto.
  • Steps S2201+S2202 can be implemented as independent embodiments
  • steps S2201+S2202+S2203 can be implemented as independent embodiments, but not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • the first information related to the user plane path is managed during the PDU session modification process.
  • the first information related to the user plane path can be updated locally in the first network element during the PDU session modification process, or the selection or reselection of the fourth network element can be performed with reference to the first information related to the user plane path during the PDU session modification process, so that the selected or reselected fourth network element can support the effective connection of the user plane path, and the user plane connection established based on the user plane path can support the effective implementation of the first service.
  • FIG2C is an interactive schematic diagram of a communication control method according to another embodiment of the present disclosure. As shown in FIG2C , the present disclosure embodiment relates to a communication control method, which can be used in a communication system 100, and the method includes:
  • Step S2301 The second network element sends a fifth message to the first network element.
  • the fifth message is used to notify the status of the PDU session SM context or to notify the PDU session status.
  • the PDU session can be used to access the first service.
  • the fifth message includes: first information related to the user plane path.
  • the second network element may send a fifth message to the first network element.
  • the SMF network element may send a Nsmf_PDUSession_SMContextStatusNotify message to the AMF network element.
  • the Nsmf_PDUSession_SMContextStatusNotify message may carry first information related to the user plane path.
  • the user plane path is used to establish a user plane connection, and the user plane connection is used for the first service.
  • the first service is a user plane positioning service.
  • the first service may also be any other possible service.
  • the first information may be used to select a fourth network element adapted to the user plane path.
  • the first information may be referenced in the process of selecting the fourth network element adapted to the user plane path.
  • the fourth network element adapted to the user plane path may refer to the user plane path being able to effectively connect to the adapted fourth network element.
  • the fourth network element is, for example, a LMF network element.
  • the first information may be used to describe information related to a user plane path.
  • the first information may be used to initially select a LMF or to modify the LMF.
  • the AMF network element can initially select the LMF or modify the LMF based on the first information sent by the SMF network element.
  • the first information includes at least one of the following: a data network access identifier DNAI associated with a third network element, wherein the third network element is selected for a protocol data unit PDU session for the first service; an Internet Protocol IP address range accessible to the third network element; user plane information of a fourth network element currently selected for the first service, so that the first network element can accurately obtain information about the user plane path established by the second network element.
  • a data network access identifier DNAI associated with a third network element, wherein the third network element is selected for a protocol data unit PDU session for the first service
  • an Internet Protocol IP address range accessible to the third network element
  • user plane information of a fourth network element currently selected for the first service so that the first network element can accurately obtain information about the user plane path established by the second network element.
  • Step S2302 The first network element receives the fifth message sent by the second network element.
  • the AMF network element may receive a Nsmf_PDUSession_SMContextStatusNotify message sent by the SMF network element.
  • the AMF network element can obtain the first information related to the user plane path from the Nsmf_PDUSession_SMContextStatusNotify message.
  • Step S2303 The first network element updates the locally stored information related to the fourth network element according to the user plane information, wherein the first information is the user plane information of the fourth network element currently selected for the first service.
  • Step S2304 The first network element selects or reselects a target fourth network element based on the first information, wherein the first information includes: a DNAI associated with the third network element, and/or an IP address range accessible to the third network element.
  • the currently selected fourth network element and the target fourth network element may be different.
  • Step S2305 The first network element sends a sixth message to the target fourth network element, where the sixth message is used to request the target fourth network element to establish a user plane connection.
  • Step S2306 The first network element sends user plane information related to the target fourth network element to the terminal.
  • the user plane information is used to establish a user plane connection between the terminal and the target fourth network element.
  • steps S2303 to S2306 please refer to the above embodiment and will not be repeated here.
  • the communication control method involved in the embodiment of the present disclosure may include at least one of steps S2301 to S2306.
  • step S2301 may be implemented as an independent embodiment
  • step S2302 may be implemented as an independent embodiment, and so on, but not limited thereto.
  • Steps S2301+S2302 may be implemented as independent embodiments
  • steps S2301+S2302+S2303 may be implemented as independent embodiments, but not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • the second network element may send a fifth message to the first network element, the fifth message including: first information related to the user plane path, so as to manage the first information related to the user plane path when the third network element associated with the currently selected fourth network element migrates.
  • the first information related to the user plane path may be updated locally in the first network element, or when the third network element associated with the currently selected fourth network element migrates, the selection of the fourth network element may be performed with reference to the first information related to the user plane path.
  • the method selects or reselects the fourth network element so that the selected or reselected fourth network element can support the effective connection of the user plane path, and enables the user plane connection established based on the user plane path to support the effective implementation of the first service.
  • FIG3A is an interactive schematic diagram of a communication control method according to another embodiment of the present disclosure.
  • the present disclosure embodiment relates to a communication control method, which can be used for a first network element, and the method includes:
  • Step S3101 receiving first information related to a user plane path sent by a second network element, wherein the user plane path is used to establish a user plane connection, and the user plane connection is used for a first service.
  • step S3101 may be implemented as an independent embodiment, but is not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • FIG3B is an interactive schematic diagram of a communication control method according to another embodiment of the present disclosure.
  • the present disclosure embodiment relates to a communication control method, which can be used for a first network element, and the method includes:
  • Step S3201 Send a first message to a second network element, where the first message is used to create a session management SM context for a PDU session, and the PDU session is used for a first service.
  • Step S3202 Receive a second message sent by the second network element, wherein the second message is sent by the second network element by calling the N1N2 interactive message forwarding service of the first network element, and the second message includes the first information and a PDU session establishment acceptance message.
  • Step S3203 Update locally stored information related to the fourth network element according to the user plane information, wherein the first information is the user plane information of the fourth network element currently selected for the first service.
  • Step S3204 select or reselect the target fourth network element according to the first information, wherein the currently selected fourth network element and the target fourth network element are different, and the first information includes: the DNAI associated with the third network element, and/or the IP address range accessible to the third network element.
  • the communication control method involved in the embodiment of the present disclosure may include at least one of step S3201 to step S3204.
  • step S3201 may be implemented as an independent embodiment
  • step S3202 may be implemented as an independent embodiment, but is not limited thereto
  • Steps S3201+S3202 may be implemented as independent embodiments, and so on, but are not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • FIG3C is an interactive schematic diagram of a communication control method according to another embodiment of the present disclosure.
  • the present disclosure embodiment relates to a communication control method, which can be used for a first network element, and the method includes:
  • Step S3301 Send a third message to the second network element, where the third message is used to request to update the SM context for the PDU session, and the PDU session is used for the first service.
  • Step S3302 Receive a fourth message sent by the second network element, wherein the fourth message is used to indicate a response to updating the SM context for the PDU session, and the fourth message includes: first information.
  • Step S3303 Update locally stored information related to the fourth network element according to the user plane information, wherein the first information is the user plane information of the fourth network element currently selected for the first service.
  • Step S3304 select or reselect the target fourth network element according to the first information, wherein the currently selected fourth network element and the target fourth network element are different, and the first information includes: the DNAI associated with the third network element, and/or the IP address range accessible to the third network element.
  • the communication control method involved in the embodiment of the present disclosure may include at least one of step S3301 to step S3304.
  • step S3301 may be implemented as an independent embodiment
  • step S3302 may be implemented as an independent embodiment, and so on, but not limited thereto.
  • Steps S3301+S3302 may be implemented as independent embodiments, and so on, but not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • FIG3D is an interactive schematic diagram of a communication control method according to another embodiment of the present disclosure.
  • the present disclosure embodiment relates to a communication control method, which can be used for a first network element, and the method includes:
  • Step S3401 receive the fifth message sent by the second network element, wherein the third network element associated with the currently selected fourth network element migrates, the fifth message is used to notify the status of the PDU session SM context or to notify the PDU session status, the PDU session is used for the first service, and the fifth message includes: first information.
  • Step S3402 Update locally stored information related to the fourth network element according to the user plane information, wherein the first information is the user plane information of the fourth network element currently selected for the first service.
  • Step S3403 select or reselect the target fourth network element according to the first information, wherein the currently selected fourth network element and the target fourth network element are different, and the first information includes: the DNAI associated with the third network element, and/or the IP address range accessible to the third network element.
  • the communication control method involved in the embodiment of the present disclosure may include at least one of step S3401 to step S3403.
  • step S3401 may be implemented as an independent embodiment
  • step S3402 may be implemented as an independent embodiment, and so on, but is not limited thereto
  • Steps S3401+S3402 may be implemented as independent embodiments, and so on, but are not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • FIG4A is an interactive schematic diagram of a communication control method according to another embodiment of the present disclosure.
  • the present disclosure embodiment relates to a communication control method, which can be used for a second network element, and the method includes:
  • Step S4101 Send first information related to a user plane path to a first network element, wherein the user plane path is used to establish a user plane connection, and the user plane connection is used for a first service.
  • step S4101 may be implemented as an independent embodiment, but is not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • FIG4B is an interactive schematic diagram of a communication control method according to another embodiment of the present disclosure.
  • the present disclosure embodiment relates to a communication control method, which can be used for a second network element, and the method includes:
  • Step S4201 Receive a first message sent by a first network element, wherein the first message is used to create a session management SM context for a PDU session, and the PDU session is used for a first service.
  • Step S4202 Send a second message to the first network element by calling the N1N2 interactive message forwarding service of the first network element, wherein the second message includes the first information and a PDU session establishment acceptance message.
  • the communication control method involved in the embodiment of the present disclosure may include at least one of step S4201 to step S4202.
  • step S4201 may be implemented as an independent embodiment
  • step S4202 may be implemented as an independent embodiment, but is not limited thereto
  • Steps S4201+S4202 may be implemented as independent embodiments, but are not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • FIG4C is an interactive schematic diagram of a communication control method according to another embodiment of the present disclosure.
  • the present disclosure embodiment relates to a communication control method, which can be used for a second network element, and the method includes:
  • Step S4301 Receive a third message sent by a first network element, wherein the third message is used to request to update an SM context for a PDU session, and the PDU session is used for a first service.
  • Step S4302 Send a fourth message to the first network element, wherein the fourth message is used to indicate a response to updating the SM context for the PDU session, and the fourth message includes: first information.
  • the communication control method involved in the embodiment of the present disclosure may include at least one of step S4301 to step S4302.
  • step S4301 may be implemented as an independent embodiment
  • step S4302 may be implemented as an independent embodiment, but is not limited thereto
  • Steps S4301+S4302 may be implemented as independent embodiments, but are not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • FIG4D is an interactive schematic diagram of a communication control method according to another embodiment of the present disclosure.
  • the present disclosure embodiment relates to a communication control method, which can be used for a second network element, and the method includes:
  • Step S4401 sending the fifth message to the first network element, wherein the third network element associated with the currently selected fourth network element migrates, the fifth message is used to notify the status of the PDU session SM context or to notify the PDU session status, the PDU session is used for the first service, and the fifth message includes: the first information.
  • step S4401 may be implemented as an independent embodiment, but is not limited thereto.
  • each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other implementation modes or other examples.
  • Fig. 5A is an interactive schematic diagram of a communication control method shown in another embodiment of the present disclosure.
  • the first network element is an AMF network element
  • the second network element is an SMF network element
  • the third network element is a UPF network element
  • the fourth network element is an LMF network element
  • the terminal is a UE.
  • Fig. 5A also includes a next generation radio access network (NG-RAN).
  • NG-RAN next generation radio access network
  • the user plane connection between the UE and the LMF network element is triggered by the LMF network element.
  • the LMF network element may trigger the establishment of the user plane connection after receiving a location request from the AMF network element, wherein the location request may be initiated by the UE or the network or the application function (AF) network element.
  • AF application function
  • the relevant PDU session has not been established when the user plane positioning service is triggered. Therefore, a user plane connection to a dedicated DNN and/or S-NSSAI and a PDU session supporting positioning can be established first.
  • Such methods may include:
  • the LMF network element determines to use the user plane for positioning.
  • the LMF network element may decide whether to perform the positioning process via a user plane connection between the UE and the LMF network element.
  • the LMF network element may send a Namf_Communication_N1N2Transfer message to the AMF network element, which may include user plane information (User Plane Information).
  • AMF network element may include user plane information (User Plane Information).
  • the user plane information can be used to instruct the UE to use the user plane on the Transport Layer Security (TLS) protocol for positioning.
  • TLS Transport Layer Security
  • the user plane information may include the user plane location address and security-related information of the LMF network element.
  • a DL NAS TRANSPORT message represents a downlink non-access layer transmission message
  • the DL NAS TRANSPORT message includes user plane information of a LMF network element providing positioning services.
  • the AMF network element may send a DL NAS TRANSPORT message to the terminal.
  • the PDU Session Establishment Request message for example, is a PDU session establishment request message.
  • the UE may use the URSP to establish a PDU session supporting the user plane positioning service, where the URSP includes PDU session parameters related to user plane positioning, such as a dedicated DNN, S-NSSAI, etc.
  • the Nsmf_PDUSession_CreateSMContext Request message can be used to request the creation of a session management (SM) context for a PDU session.
  • SM session management
  • the AMF network element may request the SMF network element to create an SM context for the PDU session based on the Nsmf_PDUSession_CreateSMContext Request message.
  • the SMF network element can create an SM context.
  • the SMF network element may send a Nsmf_PDUSession_CreateSMContext Response message to the AMF network element.
  • the SMF network element can select a UPF based on the locally configured IP address and/or network prefix of the LMF network element used for positioning services within a specific service area and the DNAI to establish a user plane path for a dedicated PDU session within the specific service area configured in the SMF network element.
  • the SMF network element can establish a user plane path based on the selected UPF.
  • the SMF network element may interact with the selected UPF network element to establish a user plane path based on the selected UPF network element.
  • the first information related to the user plane path may be, for example, UP path Info.
  • the first information related to the user plane path may also be referred to as user plane path information.
  • the SMF network element may call the Namf_Communication_N1N2MessageTransfer service to send a Namf_Communication_N1N2MessageTransfer message, and the Namf_Communication_N1N2MessageTransfer message may include first information related to the user plane path.
  • the first information related to the user plane path can be the DNAI of the protocol data unit session anchor user plane function PSA UPF network element, or it can be the IP address range accessible to the PSA UPF network element.
  • the PSA UPF network element is selected for the PDU session located for the user plane accessing the LMF network element at the current location, or the first information related to the user plane path can also be the user plane information of the LMF network element.
  • the AMF network element may update the locally stored LMF information based on the user plane information received from the LMF network element, may not execute step 10, and may choose to execute or not execute steps 11 and 12.
  • steps 10 to 12 can be performed as needed to reselect the LMF network element.
  • the PDU Session Establishment Accept message for example, is a PDU session establishment accept message.
  • the AMF network element sends a PDU Session Establishment Accept message to the UE.
  • the AMF network element performs LMF reselection based on the user plane path information received in the above step 8, where the LMF reselection can be determined by the local or NRF network element.
  • the AMF network element can call the Nnrf_NFDiscovery service and refer to the user plane path information during the LMF network element selection process.
  • the AMF network element may send a Nlmf_Location_UPConfig request message to the LMF network element to request establishment of a positioning service user plane connection.
  • the location service user plane connection can be expressed as Location Service-UP connection (LCS-UP connection).
  • LCS-UP connection Location Service-UP connection
  • the selected or reselected LMF network element may send user plane information to the AMF network element, indicating that the UE accepts and uses the user plane for positioning.
  • the user plane information may include the user plane positioning address and security-related information of the selected or reselected LMF network element.
  • the AMF network element may send the user plane information received in step 8 or step 10 to the UE via a DL NAS TRANSPORT message.
  • the UL NAS TRANSPORT message represents an uplink non-access stratum transmission message.
  • the UE may send user plane positioning confirmation information to the LMF network element through the AMF network element, indicating that the user plane connection positioning service is successful or the user plane connection positioning service fails, for example, a suitable PDU session is not established.
  • the AMF network element may send user plane location confirmation information to the LMF network element via a Namf_N1MessageNotify message.
  • the Namf_N1MessageNotify message may represent an N1 interface notification message.
  • the LMF network element may notify the UE to establish a user plane connection through the known IP address.
  • UE establishes a user plane connection.
  • the UE may establish a user plane connection with the LMF network element.
  • a domain name server (DNS)/resolver is used to resolve the IP address of the LMF network element to discover the LMF network element and establish a user plane connection with the discovered LMF network element.
  • DNS domain name server
  • the LMF network element may indicate to the AMF network element through an Nlmf_Location_UPNotify message that the user plane connection between the UE and the LMF network element has been established.
  • the AMF network element may store the LCS-UP connection context as part of the UE context.
  • LPP information may be transmitted between the UE and the LMF network element, and the LPP information may be used for UE-based positioning, UE-assisted positioning, and delivery of auxiliary information.
  • the auxiliary service event report message from the UE can be transmitted to the LMF network element via an established user plane connection.
  • Figure 5B is an interactive schematic diagram of a communication control method shown in another embodiment of the present disclosure.
  • the first network element is an AMF network element
  • the second network element is an SMF network element
  • the third network element is a UPF network element
  • the fourth network element is an LMF network element
  • the terminal is a UE.
  • NG-RAN is also included in Figure 5B.
  • the PDU session modification process can be triggered to update the SM context for the PDU session.
  • the above methods include:
  • the UE may send a user plane connection establishment request to the AMF network element via a UL NAS TRANSPORT message.
  • the AMF network element may select an LMF network element that can establish a user plane positioning session with the UE.
  • the AMF network element may send a Nlmf_Location_UPConfig request message to the LMF network element to request establishment of an LCS-UP connection.
  • the LMF network element may send user plane information to the AMF network element, indicating that the UE accepts and uses the user plane for positioning.
  • the user plane information may include the user plane location address and security-related information of the LMF network element.
  • the above steps 2 to 4 are optional steps.
  • the LMF network element may be selected or reselected after receiving feedback from the SMF network element after step 7.
  • the AMF network element may request the SMF network element to update the SM context of the PDU session based on the Nsmf_PDUSession_UpdateSMContext Request message.
  • the SMF network element can migrate the UPF based on the locally configured IP address and/or network prefix of the LMF network element used for positioning services within a specific service area and the DNAI to establish a user plane path for a dedicated PDU session within a specific service area configured in the SMF network element.
  • the AMF network element may select an LMF network element, for example, steps 2-4 are skipped and not executed, and there is no available LMF information in the AMF network element.
  • the AMF network element can reselect the LMF.
  • the LMF network element may be selected or reselected with reference to the user plane path information.
  • the SMF network element can reselect the UPF network element based on the LMF information received from step 5 above and the locally configured IP address and/or network prefix of the LMF used for positioning services within a specific service area and its DNAI.
  • the AMF network element may forward the user plane information to the UE via a DL NAS TRANSPORT message.
  • the UE establishes a user plane connection.
  • the UE may establish a user plane connection with the LMF network element.
  • the LMF network element may send a Nlmf_Location_UPConfig Response message to the AMF network element to indicate that the user plane connection between the UE and the LMF network element has been established.
  • the location service user plane connection can be expressed as Location Service-UP connection (LCS-UP connection).
  • LCS-UP connection Location Service-UP connection
  • the AMF network element may store the LCS-UP connection context as part of the UE context.
  • LPP information may be transmitted between the UE and the LMF network element, and the LPP information may be used for UE-based positioning, UE-assisted positioning, and delivery of auxiliary information.
  • the auxiliary service event report message from the UE can be transmitted to the LMF network element via an established user plane connection.
  • the terminal in addition to determining the use of user plane positioning in LMF as described in the above embodiments, it can also be implemented in the terminal, that is, the terminal determines the need to use user plane positioning and triggers the corresponding PDU session establishment or modification.
  • the embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device is proposed, the above device includes a unit or module for implementing each step performed by the terminal in any of the above methods.
  • a device is also proposed, including a unit or module for implementing each step performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.
  • a network device such as an access network device, a core network function node, a core network device, etc.
  • Fig. 5C is an interactive schematic diagram of a communication control method shown in another embodiment of the present disclosure.
  • the first network element is an AMF network element
  • the second network element is an SMF network element
  • the third network element is a UPF network element
  • the target fourth network element is a Target LMF network element
  • the source fourth network element is a Source LMF network element
  • the terminal is a UE for example.
  • the SMF network element triggers the modification of the user plane connection between the UE and the LMF network element, and determines that the UPF network element has migrated.
  • the Source LMF network element finds that the LMF network element needs to be changed, or the user plane connection between the UE and the LMF network element needs to be re-established, or the user plane connection needs to be terminated.
  • the Source LMF network element may send a Nlmf_Location_UPNotify message to the AMF network element, which includes the identifier of the target LMF and indicates the reason for the modification or termination.
  • the AMF network element may reselect the target LMF network element for user plane positioning, or when the UE moves to a new location (possibly outside the service area of the Source LMF network element but within the service area of the Target LMF network element), the AMF network element may reselect the LMF network element and select the target LMF network element for the UE based on information such as the LMF service area.
  • the SMF network element may send user plane path information related to the target PSA UPF.
  • the Nsmf_PDUSession_SMContextStatusNotify service or the Nsmf_PDUSession_StatusNotify service may be called to deliver user plane path information.
  • the AMF network element, the UE and the target LMF network element interact to execute the process of connecting to the target LMF network element.
  • the UE may also terminate the connection with the Source LMF network element.
  • the AMF network element may send a Nlmf_Location_UPConfig request message to the Source LMF network element.
  • the Nlmf_Location_UPConfig request message may include: a request instructing the Source LMF network element to terminate a specific user plane connection to the UE, and an identifier of the target LMF network element, and may also include information about the reallocation of the AMF network element.
  • the Source LMF network element may call the Nlmf_Location_LocationContextTransfer request service to provide the target LMF network element with the current location context of the UE.
  • the target LMF network element may notify the Source LMF network element of the location context transmission operation result.
  • the Source LMF network element may terminate the connection with the terminal.
  • the LMF network element may send a Nlmf_Location_UPConfig Response message to the AMF network element to confirm the connection termination or to confirm the change of the AMF network element. If this process is used to confirm the connection termination, the AMF network element may release the LCS-UP connection context after receiving the response message.
  • Fig. 6A is a schematic diagram of the structure of a communication control device proposed in an embodiment of the present disclosure.
  • the communication control device includes: a transceiver module, configured to receive first information related to a user plane path sent by a second network element, wherein the user plane path is used to establish a user plane connection, and the user plane connection is used for a first service.
  • the above-mentioned transceiver module is used to execute the relevant steps performed by the first network element in any of the above methods, which will not be repeated here.
  • the communication control device also includes at least one of a sending module and a receiving module, the sending module is used to execute the steps related to sending performed by the first network element in any of the above methods, and the receiving module is used to execute the steps related to receiving performed by the first network element in any of the above methods, which are not repeated here.
  • a sending module is used to execute the steps related to sending performed by the first network element in any of the above methods
  • the receiving module is used to execute the steps related to receiving performed by the first network element in any of the above methods, which are not repeated here.
  • FIG6B is a schematic diagram of the structure of a communication control device proposed in an embodiment of the present disclosure.
  • the communication control device includes: a transceiver module configured to send first information related to a user plane path to a first network element, wherein the user plane path is used to establish a user plane connection.
  • the user plane connection is used for the first service.
  • the above-mentioned transceiver module is used to execute the relevant steps performed by the second network element in any of the above methods, which will not be repeated here.
  • the communication control device also includes at least one of a sending module and a receiving module, the sending module is used to execute the steps related to sending performed by the second network element in any of the above methods, and the receiving module is used to execute the steps related to receiving performed by the second network element in any of the above methods, which are not repeated here.
  • a sending module is used to execute the steps related to sending performed by the second network element in any of the above methods
  • the receiving module is used to execute the steps related to receiving performed by the second network element in any of the above methods, which are not repeated here.
  • the division of the units or modules in the above device is only a division of logical functions, which can be fully or partially integrated into one physical entity or physically separated in actual implementation.
  • the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory.
  • the processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory inside the device or a memory outside the device.
  • CPU central processing unit
  • microprocessor a microprocessor
  • the units or modules in the device may be implemented in the form of hardware circuits, and the functions of some or all of the units or modules may be implemented by designing the hardware circuits.
  • the hardware circuits may be understood as one or more processors; for example, in one implementation, the hardware circuits are application-specific integrated circuits (ASICs), and the functions of some or all of the above units or modules may be implemented by designing the logical relationship of the components in the circuits; for another example, in another implementation, the hardware circuits may be implemented by programmable logic devices (PLDs), and Field Programmable Gate Arrays (FPGAs) may be used as an example, which may include a large number of logic gate circuits, and the connection relationship between the logic gate circuits may be configured by configuring the configuration files, thereby implementing the functions of some or all of the above units or modules. All units or modules of the above devices may be implemented in the form of software called by the processor, or in the form of hardware circuits, or in the form of software called by the processor, and the remaining part may be implemented in
  • FIG. 7 is a schematic diagram of the structure of a core network device proposed in an embodiment of the present disclosure.
  • the core network device 70 includes: a first network element 701 and a second network element 702; wherein,
  • the second network element is configured to send first information related to a user plane path to the first network element, wherein the user plane path is used to establish a user plane connection, and the user plane connection is used for the first service;
  • the first network element is used to receive first information related to a user plane path sent by a second network element.
  • the first information includes at least one of the following:
  • a data network access identifier DNAI associated with a third network element wherein the third network element is selected for a protocol data unit PDU session for the first service;
  • IP Internet Protocol
  • the user plane information of the fourth network element currently selected for the first service is the user plane information of the fourth network element currently selected for the first service.
  • the first network element is further used to send a first message to the second network element, wherein the first message is used to create a session management SM context for a PDU session, and the PDU session is used for the first service;
  • the second network element is further configured to receive the first message sent by the first network element, and send a second message to the first network element by calling the N1N2 interactive message forwarding service of the first network element, wherein the second message includes the first information and a PDU session establishment acceptance message;
  • the first network element is further used to receive a second message sent by the second network element.
  • the first network element is further used to send a third message to the second network element, wherein the third message is used to request to update the SM context for the PDU session, and the PDU session is used for the first service;
  • the second network element is further used to receive a third message sent by the first network element, and send a fourth message to the first network element, wherein the fourth message is used to indicate a response for updating the SM context for the PDU session, and the fourth message includes: the first information;
  • the first network element is further used to receive a fourth message sent by the second network element.
  • the second network element is further used to send a fifth message to the first network element, wherein the third network element associated with the currently selected fourth network element is migrated, the fifth message is used to notify the state of the PDU session SM context or to notify the PDU session state, the PDU session is used for the first service, and the fifth message includes: the first information;
  • the first network element is further used to receive a fifth message sent by the second network element.
  • FIG8A is a schematic diagram of the structure of a communication device proposed in an embodiment of the present disclosure, and the communication device 8100 includes one or more processors 8101.
  • the processor 8101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and the communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a program, and process the data of the program.
  • the processor 8101 is used to call instructions so that the communication device 8100 executes any of the above methods.
  • the communication device 8100 further includes one or more memories 8102 for storing instructions.
  • the memory 8102 may also be outside the communication device 8100.
  • the communication device 8100 further includes one or more transceivers 8103.
  • the communication steps such as sending and receiving in the above method are executed by the transceiver 8103, and the other steps are executed by the processor 8101.
  • the transceiver may include a receiver and a transmitter, and the receiver and the transmitter may be separate or integrated.
  • the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.
  • the communication device 8100 further includes one or more interface circuits 8104, which are connected to the memory 8102.
  • the interface circuit 8104 can be used to receive signals from the memory 8102 or other devices, and can be used to send signals to the memory 8102 or other devices.
  • the interface circuit 8104 can read instructions stored in the memory 8102 and send the instructions to the processor 8101.
  • the communication device 8100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8A.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.
  • Fig. 8B is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure.
  • the communication device 8100 may be a chip or a chip system
  • the chip 8200 includes one or more processors 8201, and the processor 8201 is used to call instructions so that the chip 8200 executes any of the above methods.
  • the chip 8200 further includes one or more interface circuits 8202, which are connected to the memory 8203.
  • the interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and the interface circuit 8202 can be used to send signals to the memory 8203 or other devices.
  • the interface circuit 8202 can read the instructions stored in the memory 8203 and send the instructions to the processor 8201.
  • the terms such as interface circuit, interface, transceiver pin, and transceiver can be replaced with each other.
  • the chip 8200 further includes one or more memories 8203 for storing instructions.
  • the memory 8203 may be outside the chip 8200.
  • the present disclosure also proposes a storage medium, on which instructions are stored, and when the instructions are executed on the communication device 8100, the communication device 8100 executes any of the above methods.
  • the storage medium is an electronic storage medium.
  • the storage medium is a computer-readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices.
  • the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a temporary storage medium.
  • the processor is a circuit with signal processing capability.
  • the processor may be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the above hardware circuit may be fixed or reconfigurable, such as a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA.
  • ASIC application-specific integrated circuit
  • PLD programmable logic device
  • the process of the processor loading a configuration document to implement the hardware circuit configuration may be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules.
  • it can also be a hardware circuit designed for artificial intelligence, which can be understood as ASIC, such as Neural Network Processing Unit (NPU), Tensor Processing Unit (TPU), Deep Learning Processing Unit (DPU), etc.
  • ASIC Neural Network Processing Unit
  • NPU Neural Network Processing Unit
  • TPU Tensor Processing Unit
  • DPU Deep Learning Processing Unit
  • the present disclosure also proposes a program product, which, when executed by the communication device 8100, enables the communication device 8100 to execute any of the above methods.
  • the program product is a computer program product.
  • the present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to execute any one of the above methods.
  • the computer program product includes one or more computer programs.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer program can be transmitted from one website, computer, server or data center to another website via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.)
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more available media.
  • the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)).
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a high-density digital video disc (DVD)
  • SSD solid state disk

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Abstract

本公开提出一种通信控制方法及装置、核心网设备、通信设备、通信系统、存储介质，该方法包括：第一网元可以接收第二网元发送的与用户面路径相关的第一信息，其中，用户面路径用于建立用户面连接，用户面连接用于第一业务。本公开的方法，使得基于用户面路径所建立的用户面连接能够支持第一业务的有效实施。

Description

通信控制方法及装置、核心网设备、通信设备、通信系统、存储介质 技术领域
本公开涉及通信技术领域，尤其涉及一种通信控制方法及装置、核心网设备、通信设备、通信系统、存储介质。
背景技术
在通信系统中，定位业务包括监管定位业务和商业定位业务。对于非监管定位业务，可以在终端和核心网网元之间的用户面连接上支持定位，其中，终端和核心网网元可以利用用户面连接传输辅助业务信息和长期演进定位协议(Long Term Evolution Positioning Protocol，LPP)消息。
发明内容
本公开实施例提供一种通信控制方法、装置、核心网设备、设备、芯片系统、存储介质、计算机程序及计算机程序产品，可应用于通信技术领域中，用于解决“基于用户面路径所建立的用户面连接不能够支持第一业务的有效实施”这一技术问题。
本公开提出通信控制方法及装置、核心网设备、通信设备、通信系统、存储介质。
根据本公开实施例的第一方面，提出了一种通信控制方法，由第一网元执行，包括：接收第二网元发送的与用户面路径相关的第一信息，其中，用户面路径用于建立用户面连接，用户面连接用于第一业务。
根据本公开实施例的第二方面，提出了一种通信控制方法，由第二网元执行，包括：向第一网元发送与用户面路径相关的第一信息，其中，用户面路径用于建立用户面连接，用户面连接用于第一业务。
根据本公开实施例的第三方面，提出了一种通信控制装置，包括：收发模块，用于接收第二网元发送的与用户面路径相关的第一信息，其中，用户面路径用于建立用户面连接，用户面连接用于第一业务。
根据本公开实施例的第四方面，提出了一种通信控制装置，包括：收发模块，用于向第一网元发送与用户面路径相关的第一信息，其中，用户面路径用于建立用户面连接，用户面连接用于第一业务。
根据本公开实施例的第五方面，提出了一种核心网设备，包括：第一网元和第二网元；其中，所述第二网元，用于向所述第一网元发送与用户面路径相关的第一信息，其中，所述用户面路径用于建立用户面连接，所述用户面连接用于第一业务；所述第一网元，用于接收所述第二网元发送的与用户面路径相关的第一信息。
根据本公开实施例的第六方面，提出了一种通信设备，包括：一个或多处理器；其中，处理器用于调用指令以使得通信设备执行第一方面和第二方面中任一方面的通信控制方法。
根据本公开实施例的第七方面，提出了一种通信系统，其特征在于，包括第一网元、第二网元、第三网元、第四网元和/或终端，其中，第一网元被配置为实现第一方面的通信控制方法，第二网元被配置为实现第二方面的通信控制方法。
根据本公开实施例的第八方面，提出了一种存储介质，存储介质存储有指令，其特征在于，当指令在通信设备上运行时，使得通信设备执行如第一方面和第二方面中任一方面的通信控制方法。
附图说明
为了更清楚地说明本公开实施例或背景技术中的技术方案，下面将对本公开实施例或背景技术中所需要使用的附图进行说明。
图1是根据本公开实施例示出的通信系统的架构示意图；
图2A是根据本公开一实施例示出的通信控制方法的交互示意图；
图2B是根据本公开一实施例示出的通信控制方法的交互示意图；
图2C是根据本公开另一实施例示出的通信控制方法的交互示意图；
图3A是根据本公开另一实施例示出的通信控制方法的交互示意图；
图3B是根据本公开另一实施例示出的通信控制方法的交互示意图；
图3C是根据本公开又一实施例示出的通信控制方法的交互示意图；
图3D根据本公开又一实施例示出的通信控制方法的交互示意图；
图4A是根据本公开另一实施例示出的通信控制方法的交互示意图；
图4B是根据本公开又一实施例示出的通信控制方法的交互示意图；
图4C是根据本公开又一实施例示出的通信控制方法的交互示意图；
图4D是根据本公开又一实施例示出的通信控制方法的交互示意图；
图5A是本公开实施例中又一实施例示出的通信控制方法的交互示意图；
图5B是本公开实施例中再一实施例示出的通信控制方法的交互示意图；
图5C是本公开实施例中再一实施例示出的通信控制方法的交互示意图；
图6A是本公开实施例提出的通信控制装置的结构示意图；
图6B是本公开实施例提出的通信控制装置的结构示意图；
图7是本公开实施例提出的核心网设备的结构示意图；
图8A是本公开实施例提出的通信设备的结构示意图；
图8B是本公开实施例提出的芯片的结构示意图。
具体实施方式
本公开实施例提出了通信控制方法及装置、通信设备、通信系统、存储介质。在一些实施例中，通信控制方法与信息处理方法、通信方法等术语可以相互替换，通信控制装置与信息处理装置、通信装置等术语可以相互替换，信息处理系统、通信系统等术语可以相互替换。
本公开实施例并非穷举，仅为部分实施例的示意，不作为对本公开保护范围的具体限制。在不矛盾的情况下，某一实施例中的每个步骤均可以作为独立实施例来实施，且各步骤之间可以任意组合，例如，在某一实施例中去除部分步骤后的方案也可以作为独立实施例来实施，且在某一实施例中各步骤的顺序可以任意交换，另外，某一实施例中的可选实现方式可以任意组合；此外，各实施例之间可以任意组合，例如，不同实施例的部分或全部步骤可以任意组合，某一实施例可以与其他实施例的可选实现方式任意组合。
在各本公开实施例中，如果没有特殊说明以及逻辑冲突，各实施例之间的术语和/或描述具有一致性，且可以互相引用，不同实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
本公开实施例中所使用的术语只是为了描述特定实施例的目的，而并非作为对本公开的限制。
在本公开实施例中，除非另有说明，以单数形式表示的元素，如“一个”、“一种”、“该”、“上述”、“所述”、“前述”、“这一”等，可以表示“一个且只有一个”，也可以表示“一个或多个”、“至少一个”等。例如，在翻译中使用如英语中的“a”、“an”、“the”等冠词(article)的情况下，冠词之后的名词可以理解为单数表达形式，也可以理解为复数表达形式。
在本公开实施例中，“多个”是指两个或两个以上。
在一些实施例中，“至少一者(at least one of)”、“至少一项(at least one of)”、“至少一个(at least one of)”、“一个或多个(one or more)”、“多个(a plurality of)”、“多个(multiple)等术语可以相互替换。
本公开实施例中的如“A、B、C……中的至少一者”、“A和/或B和/或C……”等描述方式，包括了A、B、C……中任意一个单独存在的情况，也包括了A、B、C……中任意多个的任意组合情况，每种情况可以单独存在；例如，“A、B、C中的至少一者”包括单独A、单独B、单独C、A和B组合、A和C组合、B和C组合、A和B和C组合的情况；例如，A和/或B包括单独A、单独B、A和B的组合的情况。
在一些实施例中，“在一情况下A，在另一情况下B”、“响应于一情况A，响应于另一情况B”等记载方式，根据情况可以包括以下技术方案：与B无关地执行A，即，在一些实施例中A；与A无关地执行B，即，在一些实施例中B；A和B被选择性执行，即，在一些实施例中从A与B中选择执行；A和B都被执行，即，在一些实施例中A和B。当有A、B、C等更多分支时也类似上述。
本公开实施例中的“第一”、“第二”等前缀词，仅仅为了区分不同的描述对象，不对描述对象的位置、顺序、优先级、数量或内容等构成限制，对描述对象的陈述参见权利要求或实施例中上下文的描述，不应因为使用前缀词而构成多余的限制。例如，描述对象为“字段”，则“第一字段”和“第二字段”中“字段”之前的序数词并不限制“字段”之间的位置或顺序，“第一”和“第二”并不限制其修饰的“字段”是否在同一个消息中，也不限制“第一字段”和“第二字段”的先后顺序。再如，描述对象为“等级”，则“第一等级”和“第二等级”中“等级”之前的序数词并不限制“等级”之间的优先级。再如，描述对象的数量并不受序数词的限制，可以是一个或者多个，以“第一装置”为例，其中“装置”的数量可以是一个或者多个。此外，不同前缀词修饰的对象可以相同或不同，例如，描述对象为“装置”，则“第一装置”和“第二装置”可以是相同的装置或者不同的装置，其类型可以相同或不同；再如，描述对象为“信息”，则“第一信息”和“第二信息”可以是相同的信息或者不同的信息，其内容可以相同或不同。
在一些实施例中，“包括A”、“包含A”、“用于指示A”、“携带A”，可以解释为直接携带A，也可以解释为间接指示A。
在一些实施例中，“响应于……”、“响应于确定……”、“在……的情况下”、“在……时”、“当……时”、“若……”、“如果……”等术语可以相互替换。
在一些实施例中，“大于”、“大于或等于”、“不小于”、“多于”、“多于或等于”、“不少于”、“高于”、“高于或等于”、“不低于”、“以上”等术语可以相互替换，“小于”、“小于或等于”、“不大于”、“少于”、“少于或等于”、“不多于”、“低于”、“低于或等于”、“不高于”、“以下”等术语可以相互替换。
在一些实施例中，装置等可以解释为实体的、也可以解释为虚拟的，其名称不限定于实施例中所记载的名称，“装置”、“设备(equipment)”、“设备(device)”、“电路”、“网元”、“节点”、“功能”、“单元”、“部件(section)”、“系统”、“网络”、“芯片”、“芯片系统”、“实体”、“主体”等术语可以相互替换。
在一些实施例中，“网络”可以解释为网络中包含的装置(例如，接入网设备、核心网设备等)。
在一些实施例中，“接入网设备(access network device，AN device)”、“无线接入网设备(radio access network device，RAN device)”、“基站(base station，BS)”、“无线基站(radio base station)”、“固定台(fixed station)”、“节点(node)”、“接入点(access point)”、“发送点(transmission point，TP)”、“接收点(reception point，RP)”、“发送接收点(transmission/reception point，TRP)”、“面板(panel)”、“天线面板(antenna panel)”、“天线阵列(antenna array)”、“小区(cell)”、“宏小区(macro cell)”、“小型小区(small cell)”、“毫微微小区(femto cell)”、“微微小区(pico cell)”、“扇区(sector)”、“小区组(cell group)”、“载波(carrier)”、“分量载波(component carrier)”、“带宽部分(bandwidth part，BWP)”等术语可以相互替换。
在一些实施例中，“终端(terminal)”、“终端设备(terminal device)”、“用户设备(user equipment，UE)”、“用户终端(user terminal)”、“移动台(mobile station，MS)”、“移动终端(mobile terminal，MT)”、订户站(subscriber station)、移动单元(mobile unit)、订户单元(subscriber unit)、无线单元(wireless unit)、远程单元(remote unit)、移动设备(mobile device)、无线设备(wireless device)、无线通信设备(wireless communication device)、远程设备(remote device)、移动订户站(mobile subscriber station)、接入终端(access terminal)、移动终端(mobile terminal)、无线终端(wireless terminal)、远程终端(remote terminal)、手持设备(handset)、用户代理(user agent)、移动客户端(mobile client)、客户端(client)等术语可以相互替换。
在一些实施例中，获取数据、信息等可以遵照所在地国家的法律法规。
在一些实施例中，可以在得到用户同意后获取数据、信息等。
此外，本公开实施例的表格中的每一元素、每一行、或每一列均可以作为独立实施例来实施，任意元素、任意行、任意列的组合也可以作为独立实施例来实施。
本公开中各表所示的对应关系可以被配置，也可以是预定义的。各表中的信息的取值仅仅是举例，可以配置为其他值，本公开并不限定。在配置信息与各参数的对应关系时，并不一定要求必须配置各表中示意出的所有对应关系。例如，本公开中的表格中，某些行示出的对应关系也可以不配置。又例如，可以基于上述表格做适当的变形调整，例如，拆分，合并等等。上述各表中标题示出参数的名称也可以采用通信装置可理解的其他名称，其参数的取值或表示方式也可以通信装置可理解的其他取值或表示方式。上述各表在实现时，也可以采用其他的数据结构，例如可以采用数组、队列、容器、栈、线性表、指针、链表、树、图、结构体、类、堆、散列表或哈希表等。
本公开中的预定义可以理解为定义、预先定义、存储、预存储、预协商、预配置、固化、或预烧制。
图1是根据本公开实施例示出的通信系统的架构示意图。如图1所示，通信系统100可以包括终端101、核心网设备(core network device)102。
在一些实施例中，终端101例如可以包括手机(mobile phone)、可穿戴设备、物联网设备、具备通信功能的汽车、智能汽车、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self-driving)中的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备中的至少一者，但不限于此。
在一些实施例中，核心网设备102可以是一个设备，包括第一网元1021、第二网元1022、第三网元1023、第四网元1024等，也可以是多个设备或设备群，分别包括第一网元1021、第二网元1022、第三网元1023、第四网元1024中的全部或部分。网元可以是虚拟的，也可以是实体的。核心网例如包括演进分组核心(Evolved Packet Core，EPC)、5G核心网络(5G Core Network，5GCN)、下一代核心(Next Generation Core，NGC)中的至少一者。
在一些实施例中，第一网元1021和第三网元1023可以连接，也可以不连接。
在一些实施例中，第一网元1021例如是接入和移动管理功能(Access and Mobility Management Function，AMF)网元。
在一些实施例中，第一网元1021用于提供接入和移动管理功能，名称不限于此。
在一些实施例中，第二网元1022例如是会话管理功能(Session Management Function，SMF)网元。
在一些实施例中，第二网元1022用于提供会话管理功能，名称不限于此。
在一些实施例中，第三网元1023例如是用户面功能(User Plane Function，UPF)网元。
在一些实施例中，第三网元1023用于提供用户面功能，名称不限于此。
在一些实施例中，第四网元1024例如是提供定位业务的位置管理功能(Location Management Function，LMF)网元。
在一些实施例中，第四网元1024用于提供位置管理功能，名称不限于此。
在一些实施例中，AMF网元和UPF网元可以连接，也可以不连接。
在一些实施例中，终端101与核心网设备102之间可以通过接入网设备连接，可选地，该接入网设备例如是将终端接入到无线网络的节点或设备，接入网设备可以包括5G通信系统中的演进节点B(evolved NodeB，eNB)、下一代演进节点B(next generation eNB，ng-eNB)、下一代节点B(next generation NodeB，gNB)、节点B(node B，NB)、家庭节点B(home node B，HNB)、家庭演进节点B(home evolved nodeB，HeNB)、无线回传设备、无线网络控制器(radio network controller，RNC)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、基带单元(base band unit，BBU)、移动交换中心、6G通信系统中的基站、开放型基站(Open RAN)、云基站(Cloud RAN)、其他通信系统中的基站、无线保真(wireless fidelity，WiFi)系统中的接入节点中的至少一者，但不限于此。
可以理解的是，本公开实施例描述的通信系统是为了更加清楚的说明本公开实施例的技术方案，并不构成对于本公开实施例提出的技术方案的限定，本领域普通技术人员可知，随着系统架构的演变和新业务场景的出现，本公开实施例提出的技术方案对于类似的技术问题同样适用。
下述本公开实施例可以应用于图1所示的通信系统100、或部分主体，但不限于此。图1所示的各主体是例示，通信系统可以包括图1中的全部或部分主体，也可以包括图1以外的其他主体，各主体数量和形态为任意，各主体之间的连接关系是例示，各主体之间可以不连接也可以连接，其连接可以是任意方式，可以是直接连接也可以是间接连接，可以是有线连接也可以是无线连接。
本公开各实施例可以应用于长期演进(Long Term Evolution，LTE)、LTE-Advanced(LTE-A)、LTE-Beyond(LTE-B)、SUPER 3G、IMT-Advanced、第四代移动通信系统(4th generation mobile communication system，4G)、第五代移动通信系统(5th generation mobile communication system，5G)、5G新空口(new radio，NR)、未来无线接入(Future Radio Access，FRA)、新无线接入技术(New-Radio Access Technology，RAT)、新无线(New Radio，NR)、新无线接入(New radio access，NX)、未来一代无线接入(Future generation radio access，FX)、Global System for Mobile communications(GSM(注册商标))、CDMA2000、超移动宽带(Ultra Mobile Broadband，UMB)、IEEE 802.11(Wi-Fi(注册商标))、IEEE 802.16(WiMAX(注册商标))、IEEE 802.20、超宽带(Ultra-WideBand，UWB)、蓝牙(Bluetooth(注册商标))、陆上公用移动通信网(Public Land Mobile Network，PLMN)网络、设备到设备(Device-to-Device，D2D)系统、机器到机器(Machine to Machine，M2M)系统、物联网(Internet of Things，IoT)系统、车联网(Vehicle-to-Everything，V2X)、利用其他用户面连接建立方法的系统、基于它们而扩展的下一代系统等。此外，也可以将多个系统组合(例如，LTE或者LTE-A与5G的组合等)应用。
为了便于理解，首先介绍本公开涉及的术语。
1、接入与移动性管理功能(access and mobility management function，AMF)网元。
AMF网元为核心网侧的逻辑节点功能网元，其是终端和无线的核心网控制面接入点，从用户设备接收所有连接和会话相关信息，并执行注册、连接、可达性、移动性管理。此外，AMF网元为终端设备和会话管理功能(session management function，SMF)设备提供会话管理消息传输通道，为用户接入时提供认证、鉴权功能。
2、位置管理功能(Location management Function，LMF)网元。
LMF位于无线接入网(radioaccessnetwork，ran)本地或者核心网(corenetwork，cn)侧，用于向UE提供位置管理功能服务。
3、用户面功能(user plane function，UPF)网元，包括用户数据包的路由和转发、与外部数据网的数据交互、用户面的服务质量QoS处理、流控规则实施(例如门控、重定向、流量转向)等。
在通信系统中，定位业务包括监管定位业务和商业定位业务。对于非监管定位业务，可以在UE和LMF之间的用户面连接上支持定位，其中，LMF和UE可以利用用户面连接传输辅助业务信息和长期演进LTE定位协议(LTEPositioning Protocol，LPP)消息。
可选地，可以通过用户面连接实现定位，LMF可以充当应用程序服务器，部署在5GC内。可以在协议数据单元(Protocol Data Unit，PDU)会话内建立终端与LMF之间的用户面连接，终端与LMF之间的用户面路径用于建立该用户面连接。
可选地，UE可以基于本地配置或者用户设备路由选择策略(UE Routing Selection Policy，URSP)使用包含用户面定位业务相关的PDU会话参数(如专用数据网络名(Data Network Name，DNN)和单网络切片选择辅助信息(Single Network Slice Selection Assistance Information，S-NSSAI))来建立用于用户面定位的PDU会话。
可选地，SMF可以根据S-NSSAI、DNN和UE位置信息等，选择一个与LMF连接的PDU会话锚点UPF(PDU session anchor UPF，PSA UPF，位于中心站点或本地站点)进行此PDU会话。
可选地，可以通过在SMF中预配置的用于特定的业务区域内的定位业务的本地LMF的互联网协议地址(Internet Protocol Address，IP地址)、网络前缀及其数据网络接入标识符(Data Network Access Identifier，DNAI)，确定本地PSA的选择，以用于用户面定位。
由此可见，用于用户面定位的PDU会话由SMF管理，而LMF由AMF选择，因此，SMF管理的用户面路径与AMF选择的LMF之间可能存在不对齐的情况，导致SMF管理的用户面路径不能有效地连接到LMF网元，从而会影响用户面连接所支持的业务的有效实施。
图2A是根据本公开一实施例示出的通信控制方法的交互示意图。如图2A所示，本公开实施例涉及通信控制方法，可以用于通信系统100，上述方法包括：
步骤S2101，第一网元向第二网元发送第一消息。
其中，第一消息用于为协议数据单元PDU会话创建会话管理SM上下文，PDU会话可以用于接入第一业务。
在一些实施例中，第一网元例如是AMF网元。
在一些实施例中，第二网元例如是SMF网元。
在一些实施例中，第一网元可以向第二网元发送第一消息。
在一些实施例中，AMF网元可以向SMF网元发送第一消息。
在一些实施例中，第一消息可以例如是Nsmf_PDUSession_CreateSMContext Request，其中可以包含第一信息，第一信息可以例如是LMF information。
在一些实施例中，PDU会话可以由终端发起建立。
步骤S2102，第二网元接收第一网元发送的第一消息。
在一些实施例中，SMF网元可以接收AMF网元发送的第一消息。
在一些实施例中，第二网元可以确定向第一网元指示与用户面路径相关的第一信息。
步骤S2103，第二网元通过调用第一网元的N1N2交互消息转发服务向第一网元发送第二消息。
在一些实施例中，第二消息包括：与用户面路径相关的第一信息和PDU会话建立接受消息。
在一些实施例中，第二消息例如是Namf_Communication_N1N2MessageTransfer消息，在Namf_Communication_N1N2MessageTransfer消息中可以携带与用户面路径相关的第一信息。
在一些实施例中，用户面路径，是指SMF网元所建立的用户面路径。
在一些实施例中，用户面路径用于建立用户面连接，用户面连接用于第一业务。
在一些实施例中，第一业务为用户面定位业务，当然，第一业务也可以是其他任意可能的业务。
在一些实施例中，定位业务可以跟其他业务共用DNN和S-NSSAI，即，定位业务可以跟其他业务部署在相同的DNN和/或S-NSSAI。
在一些实施例中，如果第一业务为用户面定位业务，则能够使得基于用户面路径所建立的用户面连接能够支持用户面定位业务的有效实施。
在一些实施例中，第一信息，可以用于选择与用户面路径适配的第四网元。
在一些实施例中，在选择与用户面路径适配的第四网元的过程中，可以参考第一信息。
在一些实施例中，与用户面路径适配的第四网元，可以是指用户面路径能够有效地连接到该适配的第四网元。
在一些实施例中，第四网元例如是LMF网元。
在一些实施例中，第一信息可以用于描述与用户面路径相关的信息。
在一些实施例中，第一信息可以用于初始选择LMF或修改LMF。
在一些实施例中，AMF网元可以基于SMF网元发送的第一信息，来初始选择LMF或修改LMF。
在一些实施例中，第一信息包括以下至少一项：与第三网元关联的数据网络接入标识符(Data Network Access Identifier，DNAI)，其中，第三网元是为用于第一业务的协议数据单元PDU会话选择的；第三网元可访问的互联网协议(Internet Protocol，IP)地址范围；为第一业务当前选择的第四网元的用户面信息，使得第一网元能够准确地获知第二网元所建立用户面路径的信息。
步骤S2104，第一网元接收第二网元发送的第二消息。
在一些实施例中，AMF网元可以接收SMF网元发送的第二消息。
在一些实施例中，AMF网元可以从第二消息中得到与用户面路径相关的第一信息。
在一些实施例中，AMF网元可以基于与用户面路径相关的第一信息，确定出该用户面路径能够有效连接至的第四网元，可以是该用户面路径适合的第四网元。
步骤S2105，第一网元根据用户面信息，更新本地存储的与第四网元相关的信息，其中，第一信息是为第一业务当前选择的第四网元的用户面信息。
一些实施例中，第一信息，可以是为第一业务当前选择的第四网元的用户面信息。
一些实施例中，第一网元可以在本地预先存储一些与第四网元相关的信息，因此，如果确定第一信息是为第一业务当前选择的第四网元的用户面信息，则第一网元可以将本地存储的与第四网元相关的信息，修改为第四网元的用户面信息。
一些实施例中，当前选择的第四网元，可以例如是已经为第一业务所选择的第四网元。
一些实施例中，可以将上一次执行用户面定位业务的过程中所选择的第四网元，作为当前选择的第四网元。
一些实施例中，第二网元也可以在接受PDU会话建立时确定用于第一业务的用户面路径，该用户面路径所连接的LMF网元，也可以被作为当前选择的第四网元。
一些实施例中，当前选择的第四网元，例如是当前选择的LMF网元。
一些实施例中，用户面信息，可以例如是LMF网元的用户面定位地址、安全相关信息等。
一些实施例中，如果第一信息是为第一业务当前选择的第四网元的用户面信息，则可以直接将用户面信息存储至AMF网元本地。
一些实施例中，如果第一信息是为第一业务当前选择的第四网元的用户面信息，则可以将AMF网元本地存储的与LMF网元相关的信息更新为用户面信息。
由此，在第一信息是为第一业务当前选择的第四网元的用户面信息的情况下，第一网元根据用户面信息更新本地存储的与第四网元相关的信息，实现在第一网元本地存储为第一业务当前选择的第四网元的用户面信息，能够提升用于第一业务的用户面连接建立的准确性，以支持第一业务的有效实施。
步骤S2106，第一网元根据第一信息，选择或重选目标第四网元，其中，第一信息包括：与第三网元关联的DNAI，和/或第三网元可访问的IP地址范围。
在一些实施例中，如果第一信息不包括为第一业务当前选择的第四网元的用户面信息，则表示当前可能尚未选择目标第四网元，或者也可能当前选择的第四网元并不一定适配第二网元所管理的用户面路径，则可以选择或重选一个目标第四网元，并在选择或重选的过程中考虑与第三网元关联的DNAI，和/或第三网元可访问的IP地址范围，以使得所选择或重选的目标第四网元适配第二网元所管理的用户面路径。
在一些实施例中，当前选择的第四网元和目标第四网元可以不相同。
在一些实施例中，第一信息可以是与第三网元关联的DNAI。
在一些实施例中，第一信息可以是第三网元可访问的IP地址范围。
在一些实施例中，第一信息可以包括与第三网元关联的DNAI和第三网元可访问的IP地址范围。
在一些实施例中，如果第一信息包括与第三网元关联的DNAI，和/或第三网元可访问的IP地址范围，则第一网元可以根据第一信息，选择或重选目标第四网元。
在一些实施例中，目标第四网元，可以是与用户面路径适配的第四网元。
在一些实施例中，目标第四网元，可以是与用户面路径适配的LMF网元。
在一些实施例中，选择目标第四网元，可以理解为在多个候选第四网元中初选一个目标第四网元。
在一些实施例中，重选目标第四网元，可以理解为在多个候选第四网元中重新选择一个目标第四网元。
在一些实施例中，可以在第一网元本地实施选择或重选目标第四网元。
在一些实施例中，通过第五网元选择或重选目标第四网元，其中，第五网元用于提供网络存储功能。
在一些实施例中，第五网元可以提供接口服务，第一网元可以通过调用接口服务，以实现通过第五 网元选择或重选目标第四网元。
在一些实施例中，第五网元可以例如是网络存储功能(Network Repository Function，NRF)网元。
一些实施例中，如果通过NRF网元进行重选，则AMF网元可以调用Nnrf_NFDiscovery服务，并且在LMF网元选择的过程中参考用户面路径信息。
由此，能够有效地提升目标第四网元选择或重选的灵活性，有效地适用于个性化的通信场景。
在一些实施例中，第一信息是与第三网元关联的DNAI，则可以从多个候选第四网元中选择或重选与第三网元关联的DNAI对应的候选第四网元，并将对应的候选第四网元作为目标第四网元，实现基于与第三网元关联的DNAI准确地、便捷地选择或重选目标第四网元。
在一些实施例中，每个候选第四网元可以对应一个候选DNAI，则可以将与第三网元关联的DNAI与候选DNAI进行匹配，从多个候选DNAI中选择或重选出匹配的候选DNAI，并将该匹配的候选DNAI所对应的候选第四网元作为目标第四网元。
在一些实施例中，第一信息是第三网元可访问的IP地址范围，可以从多个候选第四网元中选择或重选属于IP地址范围的IP地址所属的候选第四网元，并将所属的候选第四网元作为目标第四网元，实现基于第三网元可访问的IP地址范围准确地、便捷地选择或重选目标第四网元。
在一些实施例中，每个候选第四网元可以对应一个IP地址，则可以确定属于IP地址范围的IP地址，并将该IP地址所属的候选第四网元作为目标第四网元。
在一些实施例中，第一信息包括：与第三网元关联的DNAI和第三网元可访问的IP地址范围，则可以从多个候选第四网元中选择或重选与第三网元关联的DNAI对应的，并且其IP地址属于IP地址范围的候选第四网元，及将所选择或重选的候选第四网元作为目标第四网元，实现基于与第三网元关联的DNAI，以及第三网元可访问的IP地址范围准确地、便捷地选择或重选目标第四网元。
步骤S2107，第一网元向目标第四网元发送第六消息，其中，第六消息用于请求目标第四网元建立用户面连接。
在一些实施例中，用于请求目标第四网元建立用户面连接的消息，可以被称为第六消息。
在一些实施例中，第一网元在选择或重选目标第四网元之后，还可以向目标第四网元发送第六消息，其中，第六消息用于请求目标第四网元建立用户面连接，实现及时地建立终端与目标第四网元之间的用户面连接，以基于该用户面连接支持第一业务。
在一些实施例中，AMF网元可以向选择或重选的LMF网元发送第六消息，以请求选择或重选的LMF网元建立用户面连接。
步骤S2108，第一网元向终端发送与目标第四网元相关的用户面信息。
在一些实施例中，用户面信息用于建立终端与目标第四网元之间的用户面连接。
在一些实施例中，目标第四网元相关的用户面信息，可以例如是目标第四网元的用户面定位地址、安全相关信息等。
在一些实施例中，AMF网元可以将选择或重选的目标LMF网元的用户面定位地址、安全相关信息等发送给终端，以触发建立终端与目标第四网元之间的用户面连接，实现及时地建立终端与目标第四网元之间的用户面连接，以基于该用户面连接支持第一业务。
本公开实施例所涉及的通信控制方法可以包括步骤S2101～步骤S2108中的至少一者。例如，步骤S2101可以作为独立实施例来实施，步骤S2102可以作为独立实施例来实施，以此类推，但不限于此。步骤S2101+S2102可以作为独立实施例来实施，步骤S2101+S2102+S2103可以作为独立实施例来实施，但不限于此。
在本实施方式或实施例中，在不矛盾的情况下，各步骤可以独立、任意组合或交换顺序，可选方式或可选例可以任意组合，且可以与其他实施方式或其他实施例的任意步骤之间进行任意组合。
由此，本实施例中，实现在PDU会话建立过程中管理与用户面路径相关的第一信息，可以在PDU会话建立过程中在第一网元本地更新与用户面路径相关的第一信息，或者在PDU会话建立过程中参考与用户面路径相关的第一信息执行第四网元的选择或重选，使得选择或重选的第四网元能够支持用户面路径的有效连接，并使得基于用户面路径所建立的用户面连接能够支持第一业务的有效实施。
图2B是根据本公开一实施例示出的通信控制方法的交互示意图。如图2B所示，本公开实施例涉及通信控制方法，可以用于通信系统100，上述方法包括：
步骤S2201，第一网元向第二网元发送第三消息。
在一些实施例中，第三消息用于请求为PDU会话更新SM上下文，PDU会话可以用于接入第一业务。
在一些实施例中，第三消息可以例如是Nsmf_PDUSession_UpdateSMContext Request消息。
在一些实施例中，AMF网元可以向SMF网元发送Nsmf_PDUSession_UpdateSMContext Request消息。
步骤S2202，第二网元接收第一网元发送的第三消息。
在一些实施例中，第二网元可以接收第一网元发送的第三消息。
在一些实施例中，SMF网元可以接收AMF网元发送的Nsmf_PDUSession_UpdateSMContext Request消息。
步骤S2203，第二网元向第一网元发送第四消息。
在一些实施例中，第四消息用于指示为PDU会话更新SM上下文的响应。
在一些实施例中，第四消息可以携带与用户面路径相关的第一信息。
在一些实施例中，第四消息，可以例如是Nsmf_PDUSession_UpdateSMContext Response消息。
在一些实施例中，Nsmf_PDUSession_UpdateSMContext Response消息中可以携带与用户面路径相关的第一信息。
在一些实施例中，用户面路径用于建立用户面连接，用户面连接用于第一业务。
在一些实施例中，第一业务为用户面定位业务，当然，第一业务也可以是其他任意可能的业务。
在一些实施例中，第一信息，可以用于选择与用户面路径适配的第四网元。
在一些实施例中，在选择与用户面路径适配的第四网元的过程中，可以参考第一信息。
在一些实施例中，与用户面路径适配的第四网元，可以是指用户面路径能够有效地连接到该适配的第四网元。
在一些实施例中，第四网元例如是LMF网元。
在一些实施例中，第一信息可以用于描述与用户面路径相关的信息。
在一些实施例中，第一信息可以用于初始选择LMF或修改LMF。
在一些实施例中，AMF网元可以基于SMF网元发送的第一信息，来初始选择LMF或修改LMF。
在一些实施例中，第一信息包括以下至少一项：与第三网元关联的数据网络接入标识符DNAI，其中，第三网元是为用于第一业务的协议数据单元PDU会话选择的；第三网元可访问的互联网协议IP地址范围；为第一业务当前选择的第四网元的用户面信息，使得第一网元能够准确地获知第二网元所建立用户面路径的信息。
步骤S2204，第一网元接收第二网元发送的第四消息。
在一些实施例中，AMF网元可以接收SMF网元发送的Nsmf_PDUSession_UpdateSMContext Response消息。
在一些实施例中，AMF网元可以基于Nsmf_PDUSession_UpdateSMContext Response消息获知与用户面路径相关的第一信息。
步骤S2205，第一网元根据用户面信息，更新本地存储的与第四网元相关的信息，其中，第一信息是为第一业务当前选择的第四网元的用户面信息。
步骤S2206，第一网元根据第一信息，选择或重选目标第四网元，其中，第一信息包括：与第三网元关联的DNAI，和/或第三网元可访问的IP地址范围。
在一些实施例中，当前选择的第四网元和目标第四网元可以不相同。
步骤S2207，第一网元向目标第四网元发送第六消息，其中，第六消息用于请求目标第四网元建立用户面连接。
步骤S2208，第一网元向终端发送与目标第四网元相关的用户面信息。
在一些实施例中，用户面信息用于建立终端与目标第四网元之间的用户面连接。
针对步骤S2205-步骤S2208的描述说明可以具体参见上述实施例，在此不再赘述。
本公开实施例所涉及的通信控制方法可以包括步骤S2201～步骤S2208中的至少一者。例如，步骤S2201可以作为独立实施例来实施，步骤S2202可以作为独立实施例来实施，以此类推，但不限于此。步骤S2201+S2202可以作为独立实施例来实施，步骤S2201+S2202+S2203可以作为独立实施例来实施，但不限于此。
在本实施方式或实施例中，在不矛盾的情况下，各步骤可以独立、任意组合或交换顺序，可选方式或可选例可以任意组合，且可以与其他实施方式或其他实施例的任意步骤之间进行任意组合。
由此，本实施例中，实现在PDU会话修改过程中管理与用户面路径相关的第一信息，可以在PDU会话修改过程中在第一网元本地更新与用户面路径相关的第一信息，或者在PDU会话修改过程中参考与用户面路径相关的第一信息执行第四网元的选择或重选，使得选择或重选的第四网元能够支持用户面路径的有效连接，并使得基于用户面路径所建立的用户面连接能够支持第一业务的有效实施。
图2C是根据本公开另一实施例示出的通信控制方法的交互示意图。如图2C所示，本公开实施例涉及通信控制方法，可以用于通信系统100，上述方法包括：
步骤S2301，第二网元向第一网元发送第五消息。
在一些实施例中，第五消息用于通知PDU会话SM上下文的状态或用于通知PDU会话状态，PDU会话可以用于接入第一业务，第五消息包括：与用户面路径相关的第一信息。
在一些实施例中，如果与当前选择的第四网元关联的第三网元发生迁移，则第二网元可以向第一网元发送第五消息。
在一些实施例中，如果与当前选择的LMF网元关联的UPF网元发生迁移，则SMF网元可以向AMF网元发送Nsmf_PDUSession_SMContextStatusNotify消息。
在一些实施例中，Nsmf_PDUSession_SMContextStatusNotify消息中可以携带与用户面路径相关的第一信息。
在一些实施例中，用户面路径用于建立用户面连接，用户面连接用于第一业务。
在一些实施例中，第一业务为用户面定位业务，当然，第一业务也可以是其他任意可能的业务。
在一些实施例中，第一信息，可以用于选择与用户面路径适配的第四网元。
在一些实施例中，在选择与用户面路径适配的第四网元的过程中，可以参考第一信息。
在一些实施例中，与用户面路径适配的第四网元，可以是指用户面路径能够有效地连接到该适配的第四网元。
在一些实施例中，第四网元例如是LMF网元。
在一些实施例中，第一信息可以用于描述与用户面路径相关的信息。
在一些实施例中，第一信息可以用于初始选择LMF或修改LMF。
在一些实施例中，AMF网元可以基于SMF网元发送的第一信息，来初始选择LMF或修改LMF。
在一些实施例中，第一信息包括以下至少一项：与第三网元关联的数据网络接入标识符DNAI，其中，第三网元是为用于第一业务的协议数据单元PDU会话选择的；第三网元可访问的互联网协议IP地址范围；为第一业务当前选择的第四网元的用户面信息，使得第一网元能够准确地获知第二网元所建立用户面路径的信息。
步骤S2302，第一网元接收第二网元发送的第五消息。
在一些实施例中，AMF网元可以接收SMF网元发送的Nsmf_PDUSession_SMContextStatusNotify消息。
在一些实施例中，AMF网元可以从Nsmf_PDUSession_SMContextStatusNotify消息中获知与用户面路径相关的第一信息。
步骤S2303，第一网元根据用户面信息，更新本地存储的与第四网元相关的信息，其中，第一信息是为第一业务当前选择的第四网元的用户面信息。
步骤S2304，第一网元根据第一信息，选择或重选目标第四网元，其中，第一信息包括：与第三网元关联的DNAI，和/或第三网元可访问的IP地址范围。
在一些实施例中，当前选择的第四网元和目标第四网元可以不相同。
步骤S2305，第一网元向目标第四网元发送第六消息，其中，第六消息用于请求目标第四网元建立用户面连接。
步骤S2306，第一网元向终端发送与目标第四网元相关的用户面信息。
在一些实施例中，用户面信息用于建立终端与目标第四网元之间的用户面连接。
针对步骤S2303-步骤S2306的描述说明可以具体参见上述实施例，在此不再赘述。
本公开实施例所涉及的通信控制方法可以包括步骤S2301～步骤S2306中的至少一者。例如，步骤S2301可以作为独立实施例来实施，步骤S2302可以作为独立实施例来实施，以此类推，但不限于此。步骤S2301+S2302可以作为独立实施例来实施，步骤S2301+S2302+S2303可以作为独立实施例来实施，但不限于此。
在本实施方式或实施例中，在不矛盾的情况下，各步骤可以独立、任意组合或交换顺序，可选方式或可选例可以任意组合，且可以与其他实施方式或其他实施例的任意步骤之间进行任意组合。
由此，本实施例中，如果与当前选择的第四网元关联的第三网元发生迁移，则第二网元可以向第一网元发送第五消息，第五消息包括：与用户面路径相关的第一信息，实现在与当前选择的第四网元关联的第三网元发生迁移的情况下，管理与用户面路径相关的第一信息。可以在与当前选择的第四网元关联的第三网元发生迁移的情况下，在第一网元的本地更新与用户面路径相关的第一信息，或者在与当前选择的第四网元关联的第三网元发生迁移的情况下，参考与用户面路径相关的第一信息执行第四网元的选 择或重选，使得选择或重选的第四网元能够支持用户面路径的有效连接，并使得基于用户面路径所建立的用户面连接能够支持第一业务的有效实施。
图3A是根据本公开另一实施例示出的通信控制方法的交互示意图。如图3A所示，本公开实施例涉及通信控制方法，可以用于第一网元，上述方法包括：
步骤S3101，接收第二网元发送的与用户面路径相关的第一信息，其中，用户面路径用于建立用户面连接，用户面连接用于第一业务。
本公开实施例所涉及的通信控制方法可以包括步骤S3101。例如，步骤S3101可以作为独立实施例来实施，但不限于此。
在本实施方式或实施例中，在不矛盾的情况下，各步骤可以独立、任意组合或交换顺序，可选方式或可选例可以任意组合，且可以与其他实施方式或其他实施例的任意步骤之间进行任意组合。
图3B是根据本公开另一实施例示出的通信控制方法的交互示意图。如图3B所示，本公开实施例涉及通信控制方法，可以用于第一网元，上述方法包括：
步骤S3201，向第二网元发送第一消息，其中，第一消息用于为PDU会话创建会话管理SM上下文，PDU会话用于第一业务。
步骤S3202，接收第二网元发送的第二消息，其中，第二消息是第二网元通过调用第一网元的N1N2交互消息转发服务而发送，第二消息包括第一信息和PDU会话建立接受消息。
步骤S3203，根据用户面信息，更新本地存储的与第四网元相关的信息，其中，第一信息是为第一业务当前选择的第四网元的用户面信息。
步骤S3204，根据第一信息，选择或重选目标第四网元，其中，当前选择的第四网元和目标第四网元不相同，第一信息包括：与第三网元关联的DNAI，和/或第三网元可访问的IP地址范围。
本公开实施例所涉及的通信控制方法可以包括步骤S3201～步骤S3204中的至少一者。例如，步骤S3201可以作为独立实施例来实施，步骤S3202可以作为独立实施例来实施，但不限于此。步骤S3201+S3202可以作为独立实施例来实施，以此类推，但不限于此。
在本实施方式或实施例中，在不矛盾的情况下，各步骤可以独立、任意组合或交换顺序，可选方式或可选例可以任意组合，且可以与其他实施方式或其他实施例的任意步骤之间进行任意组合。
图3C是根据本公开又一实施例示出的通信控制方法的交互示意图。如图3C所示，本公开实施例涉及通信控制方法，可以用于第一网元，上述方法包括：
步骤S3301，向第二网元发送第三消息，其中，第三消息用于请求为PDU会话更新SM上下文，PDU会话用于第一业务。
步骤S3302，接收第二网元发送的第四消息，其中，第四消息用于指示为PDU会话更新SM上下文的响应，第四消息包括：第一信息。
步骤S3303，根据用户面信息，更新本地存储的与第四网元相关的信息，其中，第一信息是为第一业务当前选择的第四网元的用户面信息。
步骤S3304，根据第一信息，选择或重选目标第四网元，其中，当前选择的第四网元和目标第四网元不相同，第一信息包括：与第三网元关联的DNAI，和/或第三网元可访问的IP地址范围。
本公开实施例所涉及的通信控制方法可以包括步骤S3301～步骤S3304中的至少一者。例如，步骤S3301可以作为独立实施例来实施，步骤S3302可以作为独立实施例来实施，以此类推，但不限于此。步骤S3301+S3302可以作为独立实施例来实施，以此类推，但不限于此。
在本实施方式或实施例中，在不矛盾的情况下，各步骤可以独立、任意组合或交换顺序，可选方式或可选例可以任意组合，且可以与其他实施方式或其他实施例的任意步骤之间进行任意组合。
图3D根据本公开又一实施例示出的通信控制方法的交互示意图。如图3D所示，本公开实施例涉及通信控制方法，可以用于第一网元，上述方法包括：
步骤S3401，接收第二网元发送的第五消息，其中，与当前选择的第四网元关联的第三网元发生迁移，第五消息用于通知PDU会话SM上下文的状态或用于通知PDU会话状态，PDU会话用于第一业务，第五消息包括：第一信息。
步骤S3402，根据用户面信息，更新本地存储的与第四网元相关的信息，其中，第一信息是为第一业务当前选择的第四网元的用户面信息。
步骤S3403，根据第一信息，选择或重选目标第四网元，其中，当前选择的第四网元和目标第四网元不相同，第一信息包括：与第三网元关联的DNAI，和/或第三网元可访问的IP地址范围。
本公开实施例所涉及的通信控制方法可以包括步骤S3401～步骤S3403中的至少一者。例如，步骤S3401可以作为独立实施例来实施，步骤S3402可以作为独立实施例来实施，以此类推，但不限于此。 步骤S3401+S3402可以作为独立实施例来实施，以此类推，但不限于此。
在本实施方式或实施例中，在不矛盾的情况下，各步骤可以独立、任意组合或交换顺序，可选方式或可选例可以任意组合，且可以与其他实施方式或其他实施例的任意步骤之间进行任意组合。
图4A是根据本公开另一实施例示出的通信控制方法的交互示意图。如图4A所示，本公开实施例涉及通信控制方法，可以用于第二网元，上述方法包括：
步骤S4101，向第一网元发送与用户面路径相关的第一信息，其中，用户面路径用于建立用户面连接，用户面连接用于第一业务。
本公开实施例所涉及的通信控制方法可以包括步骤S4101。例如，步骤S4101可以作为独立实施例来实施，但不限于此。
在本实施方式或实施例中，在不矛盾的情况下，各步骤可以独立、任意组合或交换顺序，可选方式或可选例可以任意组合，且可以与其他实施方式或其他实施例的任意步骤之间进行任意组合。
图4B是根据本公开又一实施例示出的通信控制方法的交互示意图。如图4B所示，本公开实施例涉及通信控制方法，可以用于第二网元，上述方法包括：
步骤S4201，接收第一网元发送的第一消息，其中，第一消息用于为PDU会话创建会话管理SM上下文，PDU会话用于第一业务。
步骤S4202，通过调用第一网元的N1N2交互消息转发服务向第一网元发送第二消息，其中，第二消息包括第一信息和PDU会话建立接受消息。
本公开实施例所涉及的通信控制方法可以包括步骤S4201～步骤S4202中的至少一者。例如，步骤S4201可以作为独立实施例来实施，步骤S4202可以作为独立实施例来实施，但不限于此。步骤S4201+S4202可以作为独立实施例来实施，但不限于此。
在本实施方式或实施例中，在不矛盾的情况下，各步骤可以独立、任意组合或交换顺序，可选方式或可选例可以任意组合，且可以与其他实施方式或其他实施例的任意步骤之间进行任意组合。
图4C是根据本公开又一实施例示出的通信控制方法的交互示意图。如图4C所示，本公开实施例涉及通信控制方法，可以用于第二网元，上述方法包括：
步骤S4301，接收第一网元发送的第三消息，其中，第三消息用于请求为PDU会话更新SM上下文，PDU会话用于第一业务。
步骤S4302，向第一网元发送第四消息，其中，第四消息用于指示为PDU会话更新SM上下文的响应，第四消息包括：第一信息。
本公开实施例所涉及的通信控制方法可以包括步骤S4301～步骤S4302中的至少一者。例如，步骤S4301可以作为独立实施例来实施，步骤S4302可以作为独立实施例来实施，但不限于此。步骤S4301+S4302可以作为独立实施例来实施，但不限于此。
在本实施方式或实施例中，在不矛盾的情况下，各步骤可以独立、任意组合或交换顺序，可选方式或可选例可以任意组合，且可以与其他实施方式或其他实施例的任意步骤之间进行任意组合。
图4D是根据本公开又一实施例示出的通信控制方法的交互示意图。如图4D所示，本公开实施例涉及通信控制方法，可以用于第二网元，上述方法包括：
步骤S4401，向第一网元发送第五消息，其中，与当前选择的第四网元关联的第三网元发生迁移，第五消息用于通知PDU会话SM上下文的状态或用于通知PDU会话状态，PDU会话用于第一业务，第五消息包括：第一信息。
本公开实施例所涉及的通信控制方法可以包括步骤S4401。例如，步骤S4401可以作为独立实施例来实施，但不限于此。
在本实施方式或实施例中，在不矛盾的情况下，各步骤可以独立、任意组合或交换顺序，可选方式或可选例可以任意组合，且可以与其他实施方式或其他实施例的任意步骤之间进行任意组合。
以下为对上述方法的示例性介绍。
可选地实施例：
如图5A所示，图5A是本公开实施例中又一实施例示出的通信控制方法的交互示意图。如图5A所示，本公开实施例中，以第一网元是AMF网元，第二网元是SMF网元，第三网元是UPF网元，第四网元是LMF网元，终端为UE进行示例，在图5A中还包括下一代无线接入网(Next Generation Radio Access Network，NG-RAN)。
在本实施例中，假设UE与LMF网元之间的用户面连接是由LMF网元触发的。LMF网元可以在收到AMF网元的位置请求后触发用户面连接的建立，其中，位置请求可以由UE或网络或应用功能(Application Function，AF)网元发起。
并且在本实施例中，触发用户面定位业务时尚未建立相关的PDU会话，因此，可以首先建立到专用DNN和/或S-NSSAI的用户面连接并支持定位的PDU会话。
上述方法可以包括：
1.LMF网元确定利用用户面进行定位。
一些实施例中，LMF网元可以决定是否通过UE和LMF网元之间的用户面连接进行定位过程。
2.发送Namf_Communication_N1N2Transfer消息(包括用户面信息)。
一些实施例中，LMF网元可以向AMF网元发送Namf_Communication_N1N2Transfer消息，该消息中可以包括用户面信息(User Plane Information)。
一些实施例中，用户面信息，可以用于指示UE利用传输层安全(Transport Layer Security，TLS)协议上的用户面进行定位。
一些实施例中，用户面信息可以包括LMF网元的用户面定位地址、安全相关信息。
3.发送DL NAS TRANSPORT消息(包括用户面信息)。
一些实施例中，DL NAS TRANSPORT消息，表示下行链路非接入层传输消息，该DL NAS TRANSPORT消息中包括提供定位业务的LMF网元的用户面信息。
一些实施例中，AMF网元可以向终端发送DL NAS TRANSPORT消息。
4.发送PDU Session Establishment Request消息。
一些实施例中，PDU Session Establishment Request消息，例如是PDU会话建立请求消息。
一些实施例中，如果尚未为用户面定位业务建立适用的PDU会话，则UE可以使用URSP来建立支持用户面定位业务的PDU会话，URSP中包含了与用户面定位相关的PDU会话参数，如专用DNN、S-NSSAI等。
5.发送Nsmf_PDUSession_CreateSMContext请求消息。
一些实施例中，Nsmf_PDUSession_CreateSMContext Request消息，可以用于请求为PDU会话创建会话管理(Session Management，SM)上下文。
一些实施例中，AMF网元可以基于Nsmf_PDUSession_CreateSMContext Request消息请求SMF网元为PDU会话创建SM上下文。
6.发送Nsmf_PDUSession_CreateSMContext响应消息。
一些实施例中，SMF网元可以创建SM上下文。
一些实施例中，SMF网元可以向AMF网元发送Nsmf_PDUSession_CreateSMContext Response消息。
7.建立用户面路径。
一些实施例中，SMF网元可以根据本地配置的用于特定业务区域内的定位业务的LMF网元的IP地址和/或网络前缀以及DNAI进行UPF的选择，以建立SMF网元中配置的特定业务区域内的专用PDU会话的用户面路径。
一些实施例中，SMF网元可以基于选择的UPF建立用户面路径。
一些实施例中，SMF网元可以与所选择UPF网元进行交互，以基于所选择的UPF网元建立用户面路径。
8.发送Namf_Communication_N1N2MessageTransfer消息(包括用户面路径信息)。
一些实施例中，与用户面路径相关的第一信息，可以例如是UP path Info。
一些实施例中，与用户面路径相关的第一信息，也可以被称为用户面路径信息。
一些实施例中，SMF网元在接受PDU会话建立时，可以调用Namf_Communication_N1N2MessageTransfer服务，以发送Namf_Communication_N1N2MessageTransfer消息，Namf_Communication_N1N2MessageTransfer消息中可以包含与用户面路径相关的第一信息。
一些实施例中，与用户面路径相关的第一信息可以是协议数据单元会话锚点用户面功能PSA UPF网元的DNAI，也可以是PSA UPF网元可以访问的IP地址范围，PSA UPF网元是为访问当前位置的LMF网元的用户面定位的PDU会话选择的，或者与用户面路径相关的第一信息还可以是LMF网元的用户面信息。
一些实施例中，如果与用户面路径相关的第一信息为LMF网元的用户面信息，则AMF网元可以根据收到的LMF网元的用户面信息更新本地存储的LMF信息，可以不执行步骤10，可以选择执行或者不执行步骤11以及步骤12。
一些实施例中，如果与用户面路径相关的第一信息为协议数据单元会话锚点用户面功能PSA UPF网元的DNAI，或者是PSA UPF网元可以访问的IP地址范围，或者两者都包括，则可以根据需要执行步骤10～步骤12进行LMF网元的重选。
9.发送PDU Session Establishment接受消息。
一些实施例中，PDU Session Establishment Accept消息，例如是PDU会话建立接受消息。
一些实施例中，AMF网元向UE发送PDU Session Establishment Accept消息。
10.基于用户面路径信息选择或重选LMF网元。
一些实施例中，AMF网元根据上述步骤8中接收到的用户面路径信息进行LMF重选，其中LMF重选可以由本地或NRF网元决定。
一些实施例中，如果通过NRF网元进行重选，则AMF网元可以调用Nnrf_NFDiscovery服务，并且在LMF网元选择的过程中参考用户面路径信息。
11.发送Nlmf_Location_UPConfig Request消息。
在一些实施例中，AMF网元可以向LMF网元发送Nlmf_Location_UPConfig请求消息，以请求建立定位服务用户面连接。
一些实施例中，定位服务用户面连接，可以表示为Location Service-UP connection(LCS-UP connection)。
12.发送Namf_Communication_N1N2MessageTransfer消息(包括用户面信息)。
一些实施例中，如果选择或重选的LMF网元接受利用用户面进行定位，且UE与选择或重选的LMF网元之间没有建立安全的用户面连接，则选择或重选的LMF网元可以向AMF网元发送用户面信息，表示UE接受并利用用户面进行定位。用户面信息可以包括选择或重选的LMF网元的用户面定位地址、安全相关信息。
13.发送DL NAS TRANSPORT消息(包括用户面信息)。
一些实施例中，AMF网元可以通过DL NAS TRANSPORT消息将步骤8或步骤10接收到的用户面信息发送给UE。
14.发送UL NAS TRANSPORT消息(用户面定位确认信息)。
一些实施例中，UL NAS TRANSPORT消息，表示上行链路非接入层传输消息。
一些实施例中，UE可以通过AMF网元向LMF网元发送用户面定位确认信息，表示用户面连接定位业务成功或用户面连接定位业务失败，例如未建立合适的PDU会话。
15.发送Namf_N1MessageNotify消息(用户面定位确认信息)。
一些实施例中，AMF网元可以通过Namf_N1MessageNotify消息将用户面定位确认信息发送给LMF网元。
一些实施例中，Namf_N1MessageNotify消息，可以表示N1接口通知消息。
16.通过已知的UEIP地址通知UE。
一些实施例中，如果LMF网元已知UE的IP地址，LMF网元可以通过已知的IP地址通知UE建立用户面连接。
17.UE建立用户面连接。
一些实施例中，UE可以与LMF网元建立用户面连接。
一些实施例中，如果LMF网元将FQDN发送到UE，则使用域名服务器(Domain Name Server，DNS)/解析器解析LMF网元的IP地址，以发现LMF网元，并与所发现的LMF网元建立用户面连接。
18.发送Nlmf_Location_UPNotify消息(用户面定位确认信息)。
一些实施例中，LMF网元可以通过Nlmf_Location_UPNotify消息向AMF网元指示UE与LMF网元的用户面连接已经建立。
19.存储定位服务用户面连接上下文。
一些实施例中，AMF网元可以将LCS-UP连接上下文存储为UE上下文的一部分。
20.通过用户面传输UE定位和辅助业务的信息。
一些实施例中，可以在UE和LMF网元之间传输LPP信息，LPP信息可以用于基于UE的定位、UE辅助定位和辅助信息的传递。
一些实施例中，可以通过已建立的用户面连接将来自UE的辅助业务事件报告消息传输到LMF网元。
如图5B所示，图5B是本公开实施例中再一实施例示出的通信控制方法的交互示意图。如图5B所示，本公开实施例中，以第一网元是AMF网元，第二网元是SMF网元，第三网元是UPF网元，第四网元是LMF网元，终端为UE进行示例，在图5B中还包括NG-RAN。
在本实施例中，假设终端和LMF网元之间用户面定位业务是由UE请求触发，并且确定存在相关的PDU会话，则可以触发PDU会话修改过程，为PDU会话更新SM上下文。
上述方法包括：
1.发送UL NAS TRANSPORT消息(启动用户面定位)。
一些实施例中，如果UE决定为即将到来的定位请求准备用户面连接，则UE可以通过UL NAS TRANSPORT消息向AMF网元发送用户面连接建立请求。
2.选择LMF网元。
一些实施例中，如果UE的签约信息指示该终端使用用户面连接定位的授权，则AMF网元可以选择能够与UE建立用户面定位会话的LMF网元。
3.发送Nlmf_Location_UPConfig请求消息。
一些实施例中，AMF网元可以向LMF网元发送Nlmf_Location_UPConfig请求消息，以请求建立LCS-UP连接。
4.发送Namf_Communication_N1N2MessageTransfer消息(包括用户面信息)。
一些实施例中，如果LMF网元确定利用用户面进行定位，且UE与LMF网元之间没有建立安全的用户面连接，则LMF网元可以向AMF网元发送用户面信息，表示UE接受并利用用户面进行定位。
一些实施例中，用户面信息可以包括LMF网元的用户面定位地址、安全相关信息。
一些实施例中，上述步骤2-步骤4是可选的步骤。
一些实施例中，可以在步骤7后收到SMF网元的反馈后选择或重选LMF网元。
5.发送Nsmf_PDUSession_UpdateSMContext请求消息。
一些实施例中，AMF网元可以基于Nsmf_PDUSession_UpdateSMContext Request消息以请求SMF网元更新PDU会话的SM上下文。
6.修改用户面路径。
一些实施例中，SMF网元可以根据本地配置的用于特定业务区域内的定位业务的LMF网元的IP地址和/或网络前缀以及DNAI迁移UPF，以建立SMF网元中配置的特定业务区域内的专用PDU会话的用户面路径。
7.发送Nsmf_PDUSession_UpdateSMContext响应消息(包括用户面路径信息)。
2a.基于用户面路径信息选择或重选LMF网元。
一些实施例中，如果AMF网元中没有可用的LMF信息，则AMF网元可以选择LMF网元，例如步骤2-4被跳过没有执行，此时AMF网元中没有可用的LMF信息。
一些实施例中，如果AMF网元中有可用的LMF信息，则AMF网元可以重选LMF。
一些实施例中，可以参考用户面路径信息选择或重选LMF网元。
3a.发送Nlmf_Location_UPConfig请求消息。
4a.发送Namf_Communication_N1N2MessageTransfer消息(包括用户面信息)。
一些实施例中，SMF网元可以根据从上述步骤5接收到的LMF信息和本地配置的用于特定业务区域内的定位业务的LMF的IP地址和/或网络前缀及其DNAI来重新选择UPF网元。
8.发送DL NAS TRANSPORT消息(包括用户面信息)。
一些实施例中，AMF网元可以通过DL NAS TRANSPORT消息将用户面信息转发给UE。
9.UE建立用户面连接。
一些实施例中，UE可以与LMF网元建立用户面连接。
10.发送Nlmf_Location_UPConfig响应消息。
一些实施例中，LMF网元可以向AMF网元发送Nlmf_Location_UPConfig Response消息，以指示UE与LMF网元之间的用户面连接已经建立。
11.存储定位服务用户面连接上下文。
一些实施例中，定位服务用户面连接，可以表示为Location Service-UP connection(LCS-UP connection)。
一些实施例中，AMF网元可以将LCS-UP连接上下文存储为UE上下文的一部分。
12.通过用户面传输UE定位和辅助业务的信息。
一些实施例中，可以在UE和LMF网元之间传输LPP信息，LPP信息可以用于基于UE的定位、UE辅助定位和辅助信息的传递。
一些实施例中，可以通过已建立的用户面连接将来自UE的辅助业务事件报告消息传输到LMF网元。
在本公开的一些实施例中，除了如上述实施例中描述的在LMF实现确定利用用户面定位之外，还可以在终端实现，即由终端确定需要利用用户面定位，并触发相应的PDU会话建立或者修改。
本公开实施例还提出用于实现以上任一方法的装置，例如，提出一装置，上述装置包括用以实现以上任一方法中终端所执行的各步骤的单元或模块。再如，还提出另一装置，包括用以实现以上任一方法中网络设备(例如接入网设备、核心网功能节点、核心网设备等)所执行的各步骤的单元或模块。
如图5C所示，图5C是本公开实施例中再一实施例示出的通信控制方法的交互示意图。如图5C所示，本公开实施例中，以第一网元是AMF网元，第二网元是SMF网元，第三网元是UPF网元，目标第四网元是Target LMF网元，源第四网元是Source LMF网元，终端为UE进行示例。
在本实施例中，由SMF网元触发UE和LMF网元之间用户面连接的修改，并且确定UPF网元发生迁移。
1a.发送Nlmf_Location_UPNotify消息(包括目标第四网元的标识)。
一些实施例中，Source LMF网元发现需要更改LMF网元，或者需要重新建立UE与LMF网元之间的用户面连接，或者需要终止用户面连接。
一些实施例中，Source LMF网元可以向AMF网元发送Nlmf_Location_UPNotify消息，其中包含目标LMF的标识，并指出修改或终止的原因。
1b.触发选择或重选LMF网元。
一些实施例中，基于Source LMF网元的指示，AMF网元可以重新选择用于用户面定位的目标LMF网元，或者当UE移动到新的位置(可能在Source LMF网元的服务区域之外，而在Target LMF网元的服务区域内)时，AMF网元可能会进行LMF网元重新选择，并根据LMF服务区域等信息为UE选择目标LMF网元。
1c.发送Nsmf_PDUSession_SMContextStatusNotify消息(包括用户面路径信息)。
一些实施例中，UPF网元迁移，SMF网元可以发送与目标PSA UPF相关的用户面路径信息。
一些实施例中，可以调用Nsmf_PDUSession_SMContextStatusNotify服务或Nsmf_PDUSession_StatusNotify服务以下发用户面路径信息。
2.将连接移动到目标LMF网元。
一些实施例中，AMF网元、UE和目标LMF网元之间进行交互，以执行连接目标LMF网元的过程。
一些实施例中，UE也可以终止与Source LMF网元的连接。
3.发送Nlmf_Location_UPConfig请求消息。
一些实施例中，AMF网元可以向Source LMF网元发送Nlmf_Location_UPConfig请求消息。
一些实施例中，Nlmf_Location_UPConfig请求消息中可能包括：指示Source LMF网元终止到UE的特定用户面连接的请求，以及目标LMF网元的标识，还可以包括有关AMF网元重新分配的信息。
4.发送Nlmf_Location_LocationContextTransfer请求消息。
5.发送Nlmf_Location_LocationContextTransfer响应消息。
一些实施例中，Source LMF网元可以调用Nlmf_Location_LocationContextTransfer请求服务，以向目标LMF网元提供UE的当前位置上下文。
一些实施例中，如果存在周期性触发的UE位置事件报告上下文，则目标LMF网元可以将位置上下文传输操作结果通知给Source LMF网元。
6.终止与UE的连接。
一些实施例中，如果用户面与Source LMF网元的连接仍处于激活状态，则Source LMF网元可以终止与终端的连接。
7.发送Nlmf_Location_UPConfig响应消息。
一些实施例中，LMF网元可以向AMF网元发送Nlmf_Location_UPConfig Response消息，确认连接终止或确认AMF网元的变化。如果将此过程用于确认连接终止，则AMF网元可以在收到响应消息后释放LCS-UP连接上下文。
图6A是本公开实施例提出的通信控制装置的结构示意图。如图6A所示，通信控制装置包括：收发模块，用于接收第二网元发送的与用户面路径相关的第一信息，其中，用户面路径用于建立用户面连接，用户面连接用于第一业务。
可选地，上述收发模块用于执行以上任一方法中第一网元执行的有关步骤，此处不再赘述。
可选地，通信控制装置还包括发送模块、接收模块中的至少一者，上述发送模块用于执行以上任一方法中第一网元执行的与发送有关的步骤，上述接收模块用于执行以上任一方法中第一网元执行的与接收有关的步骤，此处不再赘述。
图6B是本公开实施例提出的通信控制装置的结构示意图。如图6B所示，通信控制装置包括：收发模块，用于向第一网元发送与用户面路径相关的第一信息，其中，所述用户面路径用于建立用户面连 接，所述用户面连接用于第一业务。
可选地，上述收发模块用于执行以上任一方法中第二网元执行的有关步骤，此处不再赘述。
可选地，通信控制装置还包括发送模块、接收模块中的至少一者，上述发送模块用于执行以上任一方法中第二网元执行的与发送有关的步骤，上述接收模块用于执行以上任一方法中第二网元执行的与接收有关的步骤，此处不再赘述。
应理解以上装置中各单元或模块的划分仅是一种逻辑功能的划分，在实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。此外，装置中的单元或模块可以以处理器调用软件的形式实现：例如装置包括处理器，处理器与存储器连接，存储器中存储有指令，处理器调用存储器中存储的指令，以实现以上任一方法或实现上述装置各单元或模块的功能，其中处理器例如为通用处理器，例如中央处理单元(Central Processing Unit，CPU)或微处理器，存储器为装置内的存储器或装置外的存储器。或者，装置中的单元或模块可以以硬件电路的形式实现，可以通过对硬件电路的设计实现部分或全部单元或模块的功能，上述硬件电路可以理解为一个或多个处理器；例如，在一种实现中，上述硬件电路为专用集成电路(application-specific integrated circuit，ASIC)，通过对电路内元件逻辑关系的设计，实现以上部分或全部单元或模块的功能；再如，在另一种实现中，上述硬件电路为可以通过可编程逻辑器件(programmable logic device，PLD)实现，以现场可编程门阵列(Field Programmable Gate Array，FPGA)为例，其可以包括大量逻辑门电路，通过配置文件来配置逻辑门电路之间的连接关系，从而实现以上部分或全部单元或模块的功能。以上装置的所有单元或模块可以全部通过处理器调用软件的形式实现，或全部通过硬件电路的形式实现，或部分通过处理器调用软件的形式实现，剩余部分通过硬件电路的形式实现。
图7是本公开实施例提出的核心网设备的结构示意图。
如图7所示，该核心网设备70，包括：第一网元701和第二网元702；其中，
第二网元，用于向第一网元发送与用户面路径相关的第一信息，其中，用户面路径用于建立用户面连接，用户面连接用于第一业务；
第一网元，用于接收第二网元发送的与用户面路径相关的第一信息。
在一些实施例中，第一信息包括以下至少一项：
与第三网元关联的数据网络接入标识符DNAI，其中，第三网元是为用于第一业务的协议数据单元PDU会话选择的；
第三网元可访问的互联网协议IP地址范围；
为第一业务当前选择的第四网元的用户面信息。
在一些实施例中，其中，
第一网元，还用于向第二网元发送第一消息，其中，第一消息用于为PDU会话创建会话管理SM上下文，PDU会话用于第一业务；
第二网元，还用于接收第一网元发送的第一消息，并通过调用第一网元的N1N2交互消息转发服务向第一网元发送第二消息，其中，第二消息包括第一信息和PDU会话建立接受消息；
第一网元，还用于接收第二网元发送的第二消息。
在一些实施例中，其中，
第一网元，还用于向第二网元发送第三消息，其中，第三消息用于请求为PDU会话更新SM上下文，PDU会话用于第一业务；
第二网元，还用于接收第一网元发送的第三消息，并向第一网元发送第四消息，其中，第四消息用于指示为PDU会话更新SM上下文的响应，第四消息包括：第一信息；
第一网元，还用于接收第二网元发送的第四消息。
在一些实施例中，其中，
第二网元，还用于向第一网元发送第五消息，其中，与当前选择的第四网元关联的第三网元发生迁移，第五消息用于通知PDU会话SM上下文的状态或用于通知PDU会话状态，PDU会话用于第一业务，第五消息包括：第一信息；
第一网元，还用于接收第二网元发送的第五消息。
如图8A所示，图8A是本公开实施例提出的通信设备的结构示意图，通信设备8100包括一个或多个处理器8101。处理器8101可以是通用处理器或者专用处理器等，例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控制，执行程序，处理程序的数据。处理器8101用于调用指令以使得通信设备8100执行以上任一方法。
在一些实施例中，通信设备8100还包括用于存储指令的一个或多个存储器8102。可选地，全部或部分存储器8102也可以处于通信设备8100之外。
在一些实施例中，通信设备8100还包括一个或多个收发器8103。在通信设备8100包括一个或多个收发器8103时，上述方法中的发送接收等通信步骤由收发器8103执行，其他步骤由处理器8101执行。
在一些实施例中，收发器可以包括接收器和发送器，接收器和发送器可以是分离的，也可以集成在一起。可选地，收发器、收发单元、收发机、收发电路等术语可以相互替换，发送器、发送单元、发送机、发送电路等术语可以相互替换，接收器、接收单元、接收机、接收电路等术语可以相互替换。
可选地，通信设备8100还包括一个或多个接口电路8104，接口电路8104与存储器8102连接，接口电路8104可用于从存储器8102或其他装置接收信号，可用于向存储器8102或其他装置发送信号。例如，接口电路8104可读取存储器8102中存储的指令，并将该指令发送给处理器8101。
以上实施例描述中的通信设备8100可以是网络设备或者终端，但本公开中描述的通信设备8100的范围并不限于此，通信设备8100的结构可以不受图8A的限制。通信设备可以是独立的设备或者可以是较大设备的一部分。例如所述通信设备可以是：1)独立的集成电路IC，或芯片，或，芯片系统或子系统；(2)具有一个或多个IC的集合，可选地，上述IC集合也可以包括用于存储数据，程序的存储部件；(3)ASIC，例如调制解调器(Modem)；(4)可嵌入在其他设备内的模块；(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；(6)其他等等。
图8B是本公开实施例提出的芯片的结构示意图。对于通信设备8100可以是芯片或芯片系统的情况，可以参见图8B所示的芯片8200的结构示意图，但不限于此。
芯片8200包括一个或多个处理器8201，处理器8201用于调用指令以使得芯片8200执行以上任一方法。
在一些实施例中，芯片8200还包括一个或多个接口电路8202，接口电路8202与存储器8203连接，接口电路8202可以用于从存储器8203或其他装置接收信号，接口电路8202可用于向存储器8203或其他装置发送信号。例如，接口电路8202可读取存储器8203中存储的指令，并将该指令发送给处理器8201。可选地，接口电路、接口、收发管脚、收发器等术语可以相互替换。
在一些实施例中，芯片8200还包括用于存储指令的一个或多个存储器8203。可选地，全部或部分存储器8203可以处于芯片8200之外。
本公开还提出存储介质，上述存储介质上存储有指令，当上述指令在通信设备8100上运行时，使得通信设备8100执行以上任一方法。可选地，上述存储介质是电子存储介质。可选地，上述存储介质是计算机可读存储介质，但不限于此，其也可以是其他装置可读的存储介质。可选地，上述存储介质可以是非暂时性(non-transitory)存储介质，但不限于此，其也可以是暂时性存储介质。
在本公开实施例中，处理器是具有信号处理能力的电路，在一种实现中，处理器可以是具有指令读取与运行能力的电路，例如中央处理单元(Central Processing Unit，CPU)、微处理器、图形处理器(graphics processing unit，GPU)(可以理解为微处理器)、或数字信号处理器(digital signal processor，DSP)等；在另一种实现中，处理器可以通过硬件电路的逻辑关系实现一定功能，上述硬件电路的逻辑关系是固定的或可以重构的，例如处理器为专用集成电路(application-specific integrated circuit，ASIC)或可编程逻辑器件(programmable logic device，PLD)实现的硬件电路,例如FPGA。在可重构的硬件电路中，处理器加载配置文档，实现硬件电路配置的过程，可以理解为处理器加载指令，以实现以上部分或全部单元或模块的功能的过程。此外，还可以是针对人工智能设计的硬件电路，其可以理解为ASIC，例如神经网络处理单元(Neural Network Processing Unit，NPU)、张量处理单元(Tensor Processing Unit，TPU)、深度学习处理单元(Deep learning Processing Unit，DPU)等。
本公开还提出程序产品，上述程序产品被通信设备8100执行时，使得通信设备8100执行以上任一方法。可选地，上述程序产品是计算机程序产品。
本公开还提出计算机程序，当其在计算机上运行时，使得计算机执行以上任一方法。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行所述计算机程序时，全部或部分地产生按照本公开实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站 点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (30)

  1. 一种通信控制方法，其特征在于，由第一网元执行，所述方法包括：
    接收第二网元发送的与用户面路径相关的第一信息，其中，所述用户面路径用于建立用户面连接，所述用户面连接用于第一业务。
  2. 如权利要求1所述的方法，其特征在于，所述第一信息包括以下至少一项：
    与第三网元关联的数据网络接入标识符DNAI，其中，所述第三网元是为用于所述第一业务的协议数据单元PDU会话选择的；
    所述第三网元可访问的互联网协议IP地址范围；
    为所述第一业务当前选择的第四网元的用户面信息。
  3. 如权利要求1-2任一项所述的方法，其特征在于，所述方法还包括：
    向所述第二网元发送第一消息，其中，所述第一消息用于为PDU会话创建会话管理SM上下文，所述PDU会话用于所述第一业务；
    其中，所述接收第二网元发送的与用户面路径相关的第一信息，包括：
    接收所述第二网元发送的第二消息，其中，所述第二消息是所述第二网元通过调用所述第一网元的N1N2交互消息转发服务而发送，所述第二消息包括：所述第一信息和PDU会话建立接受消息。
  4. 如权利要求1-2任一项所述的方法，其特征在于，所述方法还包括：
    向所述第二网元发送第三消息，其中，所述第三消息用于请求为PDU会话更新SM上下文，所述PDU会话用于所述第一业务；
    其中，所述接收第二网元发送的与用户面路径相关的第一信息，包括：
    接收所述第二网元发送的第四消息，其中，所述第四消息用于指示所述为PDU会话更新SM上下文的响应，所述第四消息包括：所述第一信息。
  5. 如权利要求1-2任一项所述的方法，其特征在于，所述接收第二网元发送的与用户面路径相关的第一信息，包括：
    接收所述第二网元发送的第五消息，其中，与当前选择的第四网元关联的第三网元发生迁移，所述第五消息用于通知PDU会话SM上下文的状态或用于通知PDU会话状态，所述PDU会话用于所述第一业务，所述第五消息包括：所述第一信息。
  6. 如权利要求1-5任一项所述的方法，其特征在于，所述第一信息是为所述第一业务当前选择的第四网元的用户面信息；所述方法还包括：
    根据所述用户面信息，更新本地存储的与所述第四网元相关的信息。
  7. 如权利要求1-5任一项所述的方法，其特征在于，所述第一信息包括：与第三网元关联的DNAI，和/或所述第三网元可访问的IP地址范围；所述方法还包括：
    根据所述第一信息，选择或重选目标第四网元，其中，当前选择的第四网元和所述目标第四网元不相同。
  8. 如权利要求7所述的方法，其特征在于，所述选择或重选目标第四网元，包括以下至少一项：
    在所述第一网元本地选择或重选目标第四网元；
    通过第五网元选择或重选目标第四网元，其中，所述第五网元用于提供网络存储功能。
  9. 如权利要求7或8所述的方法，其特征在于，所述第一信息是所述与第三网元关联的DNAI；其中，所述根据所述第一信息，选择或重选目标第四网元，包括：
    从多个候选第四网元中选择或重选与所述与第三网元关联的DNAI对应的候选第四网元，并将所述对应的候选第四网元作为所述目标第四网元。
  10. 如权利要求7或8所述的方法，其特征在于，所述第一信息是所述第三网元可访问的IP地址范围；其中，所述根据所述第一信息，选择或重选目标第四网元，包括：
    从多个候选第四网元中选择或重选属于所述IP地址范围的IP地址所属的候选第四网元，并将所述所属的候选第四网元作为所述目标第四网元。
  11. 如权利要求7或8所述的方法，其特征在于，所述第一信息包括：与第三网元关联的DNAI和所述第三网元可访问的IP地址范围；其中，所述根据所述第一信息，选择或重选目标第四网元，包括：
    从多个候选第四网元中选择或重选与所述与第三网元关联的DNAI对应的，并且其IP地址属于所述IP地址范围的候选第四网元，及将所选择或重选的候选第四网元作为所述目标第四网元。
  12. 如权利要求7-11任一项所述的方法，其特征在于，所述方法还包括：
    向所述目标第四网元发送第六消息，其中，所述第六消息用于请求所述目标第四网元建立所述用户面连接。
  13. 如权利要求7-11任一项所述的方法，其特征在于，所述方法还包括：
    向终端发送与所述目标第四网元相关的用户面信息，其中，所述用户面信息用于建立所述终端与所述目标第四网元之间的所述用户面连接。
  14. 如权利要求1-13任一项所述的方法，其特征在于，所述第一业务为用户面定位业务。
  15. 一种通信控制方法，其特征在于，由第二网元执行，所述方法包括：
    向第一网元发送与用户面路径相关的第一信息，其中，所述用户面路径用于建立用户面连接，所述用户面连接用于第一业务。
  16. 如权利要求15所述的方法，其特征在于，所述第一信息包括以下至少一项：
    与第三网元关联的数据网络接入标识符DNAI，其中，所述第三网元是为用于所述第一业务的协议数据单元PDU会话选择的；
    所述第三网元可访问的互联网协议IP地址范围；
    为所述第一业务当前选择的第四网元的用户面信息。
  17. 如权利要求15-16任一项所述的方法，其特征在于，所述方法还包括：
    接收所述第一网元发送的第一消息，其中，所述第一消息用于为PDU会话创建会话管理SM上下文，所述PDU会话用于所述第一业务；
    其中，所述向第一网元发送与用户面路径相关的第一信息，包括：
    通过调用所述第一网元的N1N2交互消息转发服务向所述第一网元发送第二消息，其中，所述第二消息包括：所述第一信息和PDU会话建立接受消息。
  18. 如权利要求15-16任一项所述的方法，其特征在于，所述方法还包括：
    接收所述第一网元发送的第三消息，其中，所述第三消息用于请求为PDU会话更新SM上下文，所述PDU会话用于所述第一业务；
    其中，所述向第一网元发送与用户面路径相关的第一信息，包括：
    向所述第一网元发送第四消息，其中，所述第四消息用于指示所述为PDU会话更新SM上下文的响应，所述第四消息包括：所述第一信息。
  19. 如权利要求15-16任一项所述的方法，其特征在于，所述向第一网元发送与用户面路径相关的第一信息，包括：
    向所述第一网元发送第五消息，其中，与当前选择的第四网元关联的第三网元发生迁移，所述第五消息用于通知PDU会话SM上下文的状态或用于通知PDU会话状态，所述PDU会话用于所述第一业务，所述第五消息包括：所述第一信息。
  20. 如权利要求15-19任一项所述的方法，其特征在于，所述第一业务为用户面定位业务。
  21. 一种核心网设备，其特征在于，包括：第一网元和第二网元；其中，
    所述第二网元，用于向所述第一网元发送与用户面路径相关的第一信息，其中，所述用户面路径用 于建立用户面连接，所述用户面连接用于第一业务；
    所述第一网元，用于接收所述第二网元发送的与用户面路径相关的第一信息。
  22. 如权利要求21所述的核心网设备，其特征在于，所述第一信息包括以下至少一项：
    与第三网元关联的数据网络接入标识符DNAI，其中，所述第三网元是为用于所述第一业务的协议数据单元PDU会话选择的；
    所述第三网元可访问的互联网协议IP地址范围；
    为所述第一业务当前选择的第四网元的用户面信息。
  23. 如权利要求21-22任一项所述的核心网设备，其特征在于，其中，
    所述第一网元，还用于向所述第二网元发送第一消息，其中，所述第一消息用于为PDU会话创建会话管理SM上下文，所述PDU会话用于所述第一业务；
    所述第二网元，还用于接收所述第一网元发送的第一消息，并通过调用所述第一网元的N1N2交互消息转发服务向所述第一网元发送第二消息，其中，所述第二消息包括：所述第一信息和PDU会话建立接受消息；
    所述第一网元，还用于接收所述第二网元发送的第二消息。
  24. 如权利要求21-22任一项所述的核心网设备，其特征在于，其中，
    所述第一网元，还用于向所述第二网元发送第三消息，其中，所述第三消息用于请求为PDU会话更新SM上下文，所述PDU会话用于所述第一业务；
    所述第二网元，还用于接收所述第一网元发送的第三消息，并向所述第一网元发送第四消息，其中，所述第四消息用于指示所述为PDU会话更新SM上下文的响应，所述第四消息包括：所述第一信息；
    所述第一网元，还用于接收所述第二网元发送的第四消息。
  25. 如权利要求21-22任一项所述的核心网设备，其特征在于，其中，
    所述第二网元，还用于向所述第一网元发送第五消息，其中，与当前选择的第四网元关联的第三网元发生迁移，所述第五消息用于通知PDU会话SM上下文的状态或用于通知PDU会话状态，所述PDU会话用于所述第一业务，所述第五消息包括：所述第一信息；
    所述第一网元，还用于接收所述第二网元发送的第五消息。
  26. 一种通信控制装置，其特征在于，所述装置包括：
    收发模块，用于接收第二网元发送的与用户面路径相关的第一信息，其中，所述用户面路径用于建立用户面连接，所述用户面连接用于第一业务。
  27. 一种通信控制装置，其特征在于，所述装置包括：
    收发模块，用于向第一网元发送与用户面路径相关的第一信息，其中，所述用户面路径用于建立用户面连接，所述用户面连接用于第一业务。
  28. 一种通信设备，其特征在于，包括：
    一个或多处理器；
    其中，所述处理器用于调用指令以使得所述通信设备执行权利要求1-20中任一项所述的方法。
  29. 一种通信系统，其特征在于，包括第一网元、第二网元、第三网元、第四网元和/或终端，其中，所述第一网元被配置为实现权利要求1-14中任一项所述的方法，所述第二网元被配置为实现权利要求15-20中任一项所述的方法。
  30. 一种存储介质，所述存储介质存储有指令，其特征在于，当所述指令在通信设备上运行时，使得所述通信设备执行如权利要求1-20中任一项所述的方法。
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