WO2020019764A1 - 信息传输方法、设备及计算机可读存储介质 - Google Patents

信息传输方法、设备及计算机可读存储介质 Download PDF

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Publication number
WO2020019764A1
WO2020019764A1 PCT/CN2019/082486 CN2019082486W WO2020019764A1 WO 2020019764 A1 WO2020019764 A1 WO 2020019764A1 CN 2019082486 W CN2019082486 W CN 2019082486W WO 2020019764 A1 WO2020019764 A1 WO 2020019764A1
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Prior art keywords
information
wireless
node
wireless capability
target transmission
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PCT/CN2019/082486
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English (en)
French (fr)
Inventor
薛妍
郁光辉
谢峰
黄强
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中兴通讯股份有限公司
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Priority to KR1020217005358A priority Critical patent/KR102469191B1/ko
Priority to EP19840396.6A priority patent/EP3829203A4/en
Priority to US17/262,666 priority patent/US11564084B2/en
Publication of WO2020019764A1 publication Critical patent/WO2020019764A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H04W8/245—Transfer of terminal data from a network towards a terminal
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/76—Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions
    • H04L47/762—Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions triggered by the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H04W28/12—Flow control between communication endpoints using signalling between network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to the field of communications, and in particular, to an information transmission method, device, and computer-readable storage medium.
  • ETSI European Telecommunications Standards Institute
  • MEC Mobile Edge Computing
  • MEC technology mainly provides a wireless access network with IT and cloud computing capabilities by deploying a universal server on the wireless access side. Therefore, MEC can also be considered as an edge cloud.
  • ETSI renamed MEC from Mobile Edge Computing (Multi-Access Edge Computing) to Multi-Access Edge Computing (Multi- access Edge Computing).
  • 3GPP in the next-generation network architecture research project TR23.799, TR: Technical Report
  • 5G (5th Generation 5th Generation Mobile Communication Technology) system architecture standards TS23.501, TS: Technical, Specification
  • the research on 3GPP 5G network architecture standards mainly starts from the 5G network service requirements and the evolution trend of the architecture, and achieves the goal of MEC through distributed sinking of the user plane and flexible routing.
  • the MEC platform can also implement cross-layer information interaction and joint optimization on the wireless side and the application layer through wireless information opening. Because MEC is located at the edge of the network and is closer to the wireless network and users, it has the natural advantage that it is easier to realize and use the network context information, and it is more convenient to obtain real-time wireless network information. If the open interface passes this information to third-party applications, it can improve user experience, optimize services, consider both networks and services, promote deep integration of networks and services, and bring about greater business opportunities. The combination of MEC and 5G architecture in the opening of capabilities is a key factor in the implementation of MEC technology.
  • a service-based network architecture SBA Service-based Architecture
  • network and application functions AF Application Function, application functions
  • NEF Network Exposure Function
  • NEF Network open function
  • NEF collects network capabilities including policy control capabilities and communicates with applications through the MEC platform.
  • NEF is the network function of the core network. It needs to open its capabilities through the 5G core network.
  • Figure 1 is a service-based 5G system architecture defined by 3GPP in TS23.501.
  • UE User Equipment
  • RAN Radio Access Network, Radio Access Network
  • DN Data Network
  • UPF User Plane Function
  • Other network functions are core network functions.
  • SMF Session Management Functionality
  • AMF Access and Mobility Management Function
  • AUSF Authentication Server Function
  • NRF Network Repository Function
  • PCF Policy Control Function
  • UDM Unified Data Management
  • NEF is a network open function that is responsible for opening network capabilities
  • AF Application functions responsible for App control and deployment, can be in the trusted domain of the operator or in the third-party untrusted domain. AFs in the trusted domain can directly access the corresponding functions in the network. AFs in the untrusted domain can access the network after passing
  • the RAN's information provision is not based on the service architecture, it cannot be used directly by the MEC.
  • the opening of wireless network capabilities in the current 5G system architecture requires wireless information to be transmitted to the core network first, and then passed from the core network to the MEC. This means that even if the MEC is closer to the wireless network and users in terms of location deployment, the wireless network information must be detoured to the core network before it can be obtained at the MEC.
  • the MEC needs such information to be open, the information must also be transmitted and processed in the core network. For some low-latency scenarios, such as the Industrial Internet, Internet of Vehicles and other scenarios, the delay of wireless information is very harsh. At the same time, the wireless information on the RAN side is numerous and messy.
  • Using the current network capability opening mechanism not only increases the delay of information transmission, but also increases the processing load of the core network.
  • Embodiments of the present disclosure provide an information transmission method, device, and computer-readable storage medium, which are used to solve the problems of large information transmission delay in an open manner of wireless network capability in the related art and increasing the processing load of the core network.
  • an embodiment of the present disclosure provides an information transmission method, including:
  • the edge node sends a wireless capability opening request to the target transmission node on the radio access network side;
  • the edge node receives the wireless capability open response information returned by the target transmission node.
  • an information transmission method including:
  • a transmission node on the radio access network side receives a wireless capability opening request sent by the edge node
  • the transmitting node returns a wireless capability opening response message to the edge node.
  • an embodiment of the present disclosure provides an information transmission device, which is applied to an edge node and includes:
  • a requesting module configured to send a wireless capability opening request to a target transmission node on a wireless access network side
  • the receiving module is configured to receive wireless capability opening response information returned by the target transmission node.
  • an embodiment of the present disclosure provides an information transmission device, which is applied to a transmission node on a radio access network side and includes:
  • a request receiving module configured to receive a wireless capability opening request sent by the edge node
  • the response module is configured to reply to the wireless node open response information to the edge node.
  • an embodiment of the present disclosure provides an edge node device, including: a memory, a processor, and a computer program stored on the memory and executable on the processor.
  • a computer program stored on the memory and executable on the processor.
  • an embodiment of the present disclosure provides a transmission node device, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, where the computer program is processed by the processor The following method steps are implemented during execution:
  • an embodiment of the present disclosure provides a computer-readable storage medium.
  • the computer-readable storage medium stores an information transmission implementation program, and when the program is executed by a processor, implements the application to the edge as described above.
  • the steps of the information transmission method of the node; or, when the program is executed by the processor, the steps of the information transmission method of the transmission node applied to the radio access network side as described above are implemented.
  • an edge node can directly send a wireless capability opening request to a target transmission node on the wireless access network side.
  • the target transmission node can also send the capability opening response information to the edge node without going through the core network. It solves the problems of large information transmission delay in the open method of wireless capability and increasing the processing load of the core network in related technologies.
  • Figure 1 is a schematic diagram of a 5G network architecture
  • FIG. 2 is a schematic diagram of the ETSI MEC system architecture
  • FIG. 3 is a system architecture diagram where an edge node is located in an embodiment of the present disclosure
  • FIG. 5 is a flowchart of an information transmission method according to a third embodiment of the present disclosure.
  • FIG. 6 is a flowchart of an information transmission method according to a fourth embodiment of the present disclosure.
  • FIG. 7 is a flowchart of an information transmission method according to a seventh embodiment of the present disclosure.
  • FIG. 8 is a structural block diagram of an information transmission device according to an eighth embodiment of the present disclosure.
  • FIG. 9 is a structural block diagram of an information transmission device according to a ninth embodiment of the present disclosure.
  • FIG. 10 is a structural block diagram of an edge node device according to a tenth embodiment of the present disclosure.
  • FIG. 11 is a structural block diagram of a transmission node device according to a twelfth embodiment of the present disclosure.
  • Mobile edge orchestrator is a mobile edge orchestrator, responsible for selecting Mobile Edge host, loading applications, Trigger application instance initialization and termination.
  • Operations Support System is an operation support system, responsible for the authorization requested by UE and third-party customers, and transferred to Mobile Edge Orchestrator and responsible for operation and maintenance.
  • User App LCM proxy (User application lifecycle management proxy) is a user application lifecycle management proxy that allows the UE to request operations such as instance loading and termination, and informs the UE of the corresponding application instance running status.
  • CFS port Customer facing service port
  • Mobile Edge Manager is a mobile edge manager that manages the life cycle of applications, manages the rules and requirements of applications, and receives error reports and measurements of virtualisation infrastructure.
  • Virtualisation infrastructure manager is a virtualization infrastructure management that is responsible for allocating, managing, releasing virtualized resources, and collecting and reporting virtualized resource performance and error information.
  • Mobile edge host is a mobile edge host. This entity contains a mobile edge platform and virtualization infrastructure. Virtualized infrastructure provides computing, storage, and network resources for mobile edge applications.
  • Mobile edge platform is a mobile edge platform that collects necessary operating information for mobile edge applications and provides mobile edge services.
  • Mobile edge application is a mobile edge application that is instantiated on the mobile edge host based on a virtualized infrastructure.
  • User equipment application is a user equipment application that interacts with the mobile edge computing platform through the User App LCM proxy.
  • the embodiments of the present disclosure in order to solve the problems of large information transmission delay and increased processing load of the core network in the wireless capability open mode in the related technology, the embodiments of the present disclosure provide an information transmission method, device, device, and computer-readable storage. medium.
  • the implementation process of the present disclosure will be described in detail through several specific embodiments below.
  • an information transmission method is provided.
  • the method is applied to an edge node.
  • the edge node may be a MEC system, a MEC host, or a MEC platform.
  • a system architecture diagram where the edge node is located is shown in FIG. 3.
  • MEC represents an edge node
  • RAN represents a transmission node on the radio access network side whose requested capability is open.
  • the transmission node may be a radio access node or a wireless centralized control unit CU.
  • the radio access node may be Traditional or new wireless access system base station or transmission node, traditional base station such as 3GPP base station, LTE base station, new base station such as 5G base station or above 5G base station.
  • the method described in this embodiment specifically includes the following steps:
  • Step S301 The edge node sends a wireless capability opening request to a target transmission node on the wireless access network side.
  • the edge node sends a wireless capability opening request to a target transmission node on the wireless access network side through an Xm interface.
  • the edge node sends a wireless capability opening request to the target transmission node on the wireless access network side through the core network.
  • the edge node when the edge node sends a connection establishment request to the target transmission node on the wireless access network side, it carries the wireless capability opening request; it may also establish a connection with the target transmission node. After that, the wireless capability opening request is sent separately.
  • Step S302 The edge node receives the wireless capability opening response information returned by the target transmission node.
  • the edge node receives the wireless capability open response information returned by the target transmission node through the Xm interface.
  • an edge node can directly send a wireless capability opening request to a target transmission node on the wireless access network side through an Xm interface.
  • the target transmission node does not need to pass through the core network.
  • the capability open response information is directly sent to the edge node, which solves the problems of large information transmission delay and increased processing load of the core network in the wireless capability open method in the related technology.
  • an information transmission method is provided.
  • the solution of this embodiment is substantially the same as that of the first embodiment.
  • the difference is that the edge node receives the wireless capability open response information in different ways.
  • this implementation The method described in the example includes the following steps:
  • Step S301 The edge node sends a wireless capability opening request to a target transmission node on the wireless access network side.
  • Step S302 The edge node receives the wireless capability opening response information returned by the target transmission node.
  • the manner in which the edge node receives the wireless capability open response information returned by the target transmission node includes:
  • Method 1 The edge node receives the wireless capability open response information returned by the target transmission node through the wireless capability open network element REF; wherein the REF converts the wireless information in the received wireless capability open response information into the edge node Supported message formats.
  • the RAN-side wireless information is directly sent to the REF through the Xm interface, and the REF converts the received information into a service-based API (Application Programming Interface) interface and provides it to the MEC.
  • a service-based API Application Programming Interface
  • REF can be a network function independent of the edge node; it can also be an API module located at the edge node.
  • the edge node receives the wireless capability open response message returned by the target transmission node by sinking to the user plane function UPF near the radio access network.
  • an edge node can directly send a wireless capability opening request to a target transmission node on the wireless access network side through an Xm interface.
  • the target transmission node does not need to go through the remote core network.
  • the capability open response information is directly sent to the edge node, which solves the problems of large information transfer delay and increased processing load of the core network in the wireless capability open method in the related technology.
  • an information transmission method is provided. As shown in FIG. 5, the method in this embodiment includes the following steps:
  • Step S401 the edge node sends a cell-level wireless capability opening request to a target transmission node on the radio access network side;
  • the cell-level wireless capability opening request includes one or more of the following information:
  • Mobile edge host ID target transmission node ID, cell ID, information type of requested cell-level wireless information, and information name of requested cell-level wireless information, requested method for triggering response of the cell-level wireless information, requested cell-level wireless information Response cycle.
  • the information category includes one or more of the following categories: identification information, system configuration information, system status information, measurement information, bearer information, and trigger event information.
  • the wireless information response triggering method refers to a triggering method of wireless information provided by a target transmission node to an edge node.
  • the request sent by the edge node to the target transmission node may include, for example, triggering a request response by using a subscription notification to implement subscription of the wireless information of the target transmission node.
  • wireless information transfer is triggered automatically when a specific event occurs at the target transmission node, or some wireless information is sent periodically.
  • the subscription and notification may be based on a cell level, a user, or a group of users.
  • Step S402 The edge node receives the wireless capability opening response information returned by the target transmission node.
  • the wireless capability open response information includes one or more of the following information: a mobile edge host ID, a cell ID, an information type of cell-level wireless information, and cell-level wireless information.
  • the wireless network information service RNIS Radio Network Information Service
  • the wireless network information service RNIS Radio Network Information Service
  • the mobile edge host determines the RAN-side target node (which can be the base station ID and or the RAN ID) based on the service call information
  • the request includes one or more of the following information: mobile edge host ID, target node ID, cell ID, requested cell-level wireless information category, and cell-level wireless information.
  • Information name trigger method of requested cell-level wireless information response, cycle of requested cell-level wireless information response, etc.
  • the request is sent to the RAN-side target node through the Xm interface.
  • the RAN-side target node After receiving the message request, the RAN-side target node initiates a message response to the mobile edge host.
  • the response message includes the mobile edge host ID, the cell ID, the information type of the cell-level wireless information, and / or the cell-level wireless information.
  • the response message is sent to the mobile edge host through the Xm interface or the UPF or the edge host including the ID in the request message. That is, the RAN-side target node can send a response message to the requesting mobile edge host, or it can send a response message to the mobile edge host corresponding to the host ID (which may be different from the requesting host).
  • an information transmission method is provided. As shown in FIG. 6, the method in this embodiment includes the following steps:
  • Step S501 the edge node sends a user-level wireless capability opening request to a target transmission node on the radio access network side;
  • the user-level wireless capability opening request includes one or more of the following information:
  • Mobile edge host ID target transmission node ID, universal identifier of wireless network information service object, information category of requested user-level wireless information, and information name of requested user-level wireless information, method of triggering response of requested user-level wireless information, The period of the requested user-level wireless information response.
  • the information category includes one or more of the following categories: identification information, system configuration information, system status information, measurement information, bearer information, and trigger event information.
  • the wireless information response triggering method refers to a triggering method of wireless information provided by a target transmission node to an edge node.
  • the request sent by the edge node to the target transmission node may include, for example, triggering a request response by using a subscription notification to implement subscription of the wireless information of the target transmission node.
  • wireless information transfer is triggered automatically when a specific event occurs at the target transmitting node, or some wireless information is sent periodically.
  • the subscription notification may be based on a user or a group of users.
  • Step S502 The edge node receives the wireless capability opening response information returned by the target transmission node.
  • the wireless capability open response information includes one or more of the following information:
  • the mobile edge host ID, the target transmission node ID, the universal identifier of the wireless network information service object, the information type of the user-level wireless information, and the user-level wireless information is not limited.
  • the method before the edge node sends the wireless capability opening request to the target transmission node on the radio access network side, the method further includes:
  • the edge node initiates a request for obtaining the universal identifier of the designated wireless network information service object to the core network side; the edge node receives the universal identifier of the object returned by the core network side.
  • the wireless network information service objects include one or more of the following objects: user equipment and service flows.
  • the edge node and the transmission node on the radio access network side are used to identify the object identifier to each other through the core network.
  • This embodiment mainly considers that when the MEC application initiates a wireless network information service for a specific UE, the external identifier of the user is used, such as MSISDN (Mobile Subscriber, Integrated Service Service Digital Network Number, Mobile Station ISDN Number), and IMSI (International Mobile Subscriber Identification Number (International Mobile Subscriber Identification Number), etc., but the RAN side uses the internal identity of the user in the network, such as RNTI (Radio Network Temporary Identity).
  • MSISDN Mobile Subscriber, Integrated Service Service Digital Network Number, Mobile Station ISDN Number
  • IMSI International Mobile Subscriber Identification Number (International Mobile Subscriber Identification Number)
  • RNTI Radio Network Temporary Identity
  • the MEC and the core network are connected through an Nm interface (Ng interface belonging to 5G).
  • the MEC sends a capability opening request to the core network to obtain core network information, and the request includes a specific UE external identifier.
  • the core network converts the UE identification from the MEC into UE identification information of the core network, such as AMF, NGAP (Next Generation, Application, Protocol) ID, and sends them to the MEC and RAN nodes, respectively.
  • the MEC uses the AMF and NGAP ID to request the radio information of the UE with the same identity from the RAN node. After receiving the capability opening request with this UE identity, the RAN side node passes the radio information of the UE with the identity to the MEC. To reduce the delay, the core network AMF can sink to the RAN side.
  • the types of wireless information provided by the target transmission node on the radio access network side to the edge node are mainly described in combination with the contents of the third and fourth embodiments.
  • the wireless information provided by the target transmission node to the edge node may be cell-level or user-level.
  • the information of the edge node and the destination transmission node can be directly transmitted through the Xm interface.
  • the core network needs to assign the same identity to the destination transit node and edge node, such as UEAMFNGAP ID, destination transit node, and The edge nodes pass information under the same user identity.
  • the wireless information transmitted between the edge node and the destination transmission node can be divided into layer 1 / layer 2 / layer 3 information; for V2X scenarios, application optimization needs to be performed according to layer 2 information.
  • layer 1 is the physical layer
  • layer 2 is the PDCP (Packet Data Convergence Protocol), RLC (Radio Link Control), MAC (Medium Access Control) layer
  • layer 3 is the RRC (Radio Resource Control) layer.
  • the wireless information transmitted between the edge node and the destination transmission node can also be divided into static information and dynamic information.
  • Static information such as configuration information and dynamic information such as measurement information and performance statistics.
  • Different information can use different trigger methods.
  • the configuration information can be obtained in the request response sent by the RAN to the MEC, or in the response message of the core network to the MEC.
  • the acquisition of the measurement information may be that the RAN sends radio information to the MEC periodically, or the handover event triggers the RAN to MEC wireless information transmission.
  • the wireless information transmitted between the edge node and the destination transmission node may be further divided into identification information, system configuration information, system status information, measurement information, bearer information, and trigger event information according to application requirements.
  • the identification information includes, but is not limited to, network identification, UE identification, base station identification, bearer identification, PDU session identification, service flow identification, etc .
  • system configuration information includes, but is not limited to, configuration parameter information such as cell configuration parameters, window length, and switching threshold.
  • System status information includes, but is not limited to; time-frequency resource occupation, user activation status, load indication, packet delay, packet loss rate, scheduling IP (Internet Protocol) throughput, etc .; measurement information includes, but is not limited to, RSRQ (Reference SignalReceived Quality), RSRP (Reference Signal Received Power), CQI (Channel Quality Indicator) reports, etc .; bearer information includes but is not limited to E-RAB, QoS (Quality of Service), QCI (Qos Classification ID), MBR (Maximum Bit Rate) / GBR (Duranteed Bit Rate), S1 bears the relevant IP address, tunnel ID; trigger events include, but are not limited to, cell access, handover, and so on.
  • an information transmission method is provided.
  • the information transmission method is described in more detail by introducing the interaction process between the MEC and the RAN node.
  • the MEC application initiates a wireless information call to the mobile edge platform through the wireless network information service, and the mobile edge host queries whether the MEC establishes a connection with the target RAN node.
  • connection establishment request contains connection establishment request information, or connection establishment request information and wireless capability open request information.
  • connection establishment request MEC host ID, RAN base station ID (or CU ID), cell ID, user ID, type of requested wireless information, wireless information name, wireless information trigger mode, wireless information response period, etc.
  • connection establishment response message After receiving the connection establishment request message, the RAN base station ID (or CU ID) sends a connection establishment response message.
  • the response message can be that the connection is established successfully and the connection is failed.
  • the connection establishment success message may include a wireless information response, and the content may specifically be one or a combination of the following: connection establishment success, MEC host ID, RAN base station ID (or CU ID), cell ID, user ID, and specific wireless information.
  • the MEC initiates a wireless capability open request, which is specifically one or a combination of the following: MEC host ID, RAN base station ID (or CU ID), cell ID, user ID, type of requested wireless information, wireless information name, wireless information trigger mode, wireless information response period, etc.
  • the RAN base station ID After receiving the wireless capability opening request, the RAN base station ID (or CU ID) sends a wireless information response message.
  • the content of the response message may specifically be one or a combination of the following: MEC host ID, RAN base station ID (or CU ID), cell ID, user ID, specific wireless information, and the like.
  • the message content can be one or a combination of the following: MEC host ID, RAN base station ID (or CU ID), cell ID, user ID, specific wireless information, etc.
  • an information transmission method is provided.
  • the method is applied to a transmission node on a wireless access network side.
  • the transmission node may be a wireless access node or a wireless centralized control unit CU.
  • the wireless access node may It is a traditional or new wireless access system base station or transmission node.
  • Traditional base stations such as 3GPP base stations, LTE base stations, new base stations such as 5G base stations or base stations above 5G in the future.
  • the method in this embodiment includes the following steps:
  • Step S601 The transmission node on the radio access network side receives the wireless capability opening request sent by the edge node;
  • step S602 the transmission node returns a wireless capability opening response message to the edge node.
  • the transmission node responds to the wireless capability open response message through the Xm interface or the user plane function UPF.
  • the transmitting node when the transmitting node returns the wireless capability opening response information to the edge node, the transmitting node uses the control plane message information element IE to fill the requested wireless information or uses the protocol data unit PDU multi-layer encapsulation After assembling, the wireless capability open response information is returned to the edge node.
  • One way is to transparently transmit the information that each layer needs to provide through the control plane, and gradually fill in the information of each layer using the message IE. This mode is more suitable for scenarios with low latency requirements.
  • the other method is to encapsulate the information of each layer layer by layer through the data plane, and then unpack it layer by layer after passing it to the MEC. This method is more suitable for the openness of information with less real-time requirements.
  • wireless information in addition to Xm, it can also be sent to MEC through UPF.
  • MEC devices with limited Xm interface data or no Xm interface it is also an option to pack wireless information into the data stream as user plane data to be transmitted via UPF sinking to the local data network.
  • an information transmission device is provided, which is applied to an edge node, as shown in FIG. 8, and includes:
  • a requesting module 710 configured to send a wireless capability opening request to a target transmission node on a radio access network side
  • the receiving module 720 is configured to receive wireless capability opening response information returned by the target transmission node.
  • the requesting module 710 sends a wireless capability opening request to the target transmission node on the wireless side through the Xm interface.
  • the receiving module 720 receives the wireless capability opening response information returned by the target transmission node through an Xm interface or a user plane function UPF.
  • the receiving module 720 when the receiving module 720 receives the wireless capability opening response information returned by the target transmission node, it is further configured to receive the wireless capability opening returned by the target transmission node through the wireless capability opening network element REF. Response information; wherein the REF converts the wireless information in the received wireless capability open response information into an information format supported by the edge node.
  • the requesting module 710 is further configured to send a connection establishment request to a target transmission node on the radio access network side, where the connection establishment request includes the wireless capability opening request.
  • the wireless capability opening request includes a user-level wireless capability opening request and / or a cell-level wireless capability opening request.
  • the wireless capability opening request when the wireless capability opening request includes a user-level wireless capability opening request, the wireless capability opening request includes one or more of the following information:
  • Mobile edge host ID target transmission node ID, universal identifier of wireless network information service object, information category of requested user-level wireless information, and information name of requested user-level wireless information, method of triggering response of requested user-level wireless information, The period of the requested user-level wireless information response;
  • the wireless capability open response information includes one or more of the following information:
  • the mobile edge host ID, the target transmission node ID, the universal identifier of the wireless network information service object, the information type of the user-level wireless information, and the user-level wireless information is not limited.
  • the requesting module 710 is further configured to initiate a request for obtaining a universal identifier of a designated wireless network information service object to the core network side before sending a wireless capability opening request to a target transmission node on the wireless access network side;
  • the receiving module 720 is further configured to receive a universal identifier of the object returned by the core network side.
  • the wireless network information service object includes one or more of the following objects: user equipment and service flow.
  • the wireless capability opening request includes a cell-level wireless capability opening request
  • the wireless capability opening request includes one or more of the following information:
  • Mobile edge host ID target transmission node ID, cell ID, information type of requested cell-level wireless information, and information name of requested cell-level wireless information, requested method for triggering response of the cell-level wireless information, requested cell-level wireless information Response cycle
  • the wireless capability open response information includes one or more of the following information:
  • Mobile edge host ID Cell ID
  • information type of cell-level wireless information cell-level wireless information.
  • the information category includes one or more of the following categories: identification information, system configuration information, system status information, measurement information, bearer information, and trigger event information.
  • the edge node is a mobile edge computing MEC system, a MEC host, or a MEC platform; and the target transmission node is a wireless access node or a wireless centralized control unit CU.
  • the device described in this embodiment enables an edge node to directly send a wireless capability opening request to a target transmission node on a wireless access network side through an Xm interface.
  • the target transmission node When receiving a wireless capability opening response message, the target transmission node directly sends The capability open response information is sent to the edge node, which solves the problems of large information transmission delay and increased processing load of the core network in the wireless capability open method in the related technology.
  • an information transmission device is provided, which is applied to the transmission node on the radio access network side, as shown in FIG. 9 Instructions, including:
  • a request receiving module 810 configured to receive a wireless capability opening request sent by the edge node
  • the response module 820 is configured to reply to the wireless node open response information to the edge node.
  • the response module 820 is specifically configured to populate the requested wireless information by using a control plane message information element IE filling method or using a protocol data unit PDU multi-layer encapsulation, and then send it to the The edge node returns a wireless capability open response message.
  • the response module 820 responds to the wireless capability open response message through the Xm interface or the user plane function UPF.
  • the edge node is a MEC system, a MEC host, or a MEC platform; and the transmission node is a wireless access node or a wireless centralized control unit CU.
  • the device described in this embodiment enables an edge node to directly send a wireless capability opening request to a target transmission node on the wireless access network side.
  • the target transmission node can also send the capability opening response information to the edge node without using the core network. It solves the problems of large information transmission delay and increased processing load of the core network in the wireless capability opening method in related technologies.
  • an edge node device is provided. As shown in FIG. 10, the device includes a memory 1010, a processor 1020, and a computer stored on the memory 1010 and operable on the processor 1020. A program, when the computer program is executed by the processor 1020, the following method steps are implemented:
  • the edge node device sends a wireless capability opening request to a target transmission node on the wireless access network side through an Xm interface.
  • the edge node device receives the wireless capability open response information returned by the target transmission node through the Xm interface or the user plane function UPF.
  • the manner in which the edge node device receives the wireless capability open response information returned by the target transmission node includes:
  • Method 1 The edge node device receives the wireless capability open response information returned by the target transmission node through the wireless capability open network element REF, wherein the REF converts the wireless information in the received wireless capability open response information into the edge. Information format supported by the node.
  • the edge node device receives the wireless capability open response information returned by the target transmission node through the user plane function UPF.
  • the wireless capability opening request includes a cell-level wireless capability opening request and a user-level wireless capability opening request.
  • a cell-level wireless capability opening request and a user-level wireless capability opening request.
  • This embodiment will not repeat them.
  • a computer-readable storage medium stores a program for implementing information transmission.
  • the program is executed by the processor 1020, the following method steps are implemented:
  • a transmission node device As shown in FIG. 11, the transmission node device includes a memory 1110, a processor 1120, and a processor 1120 stored in the memory 1110 and operable on the processor 1120.
  • a computer program that, when executed by the processor 1120, implements the following method steps:
  • the transmission node device responds to the wireless capability open response message through the Xm interface or the user plane function UPF.
  • the transmission node device when the transmission node device responds to the edge node with a wireless capability opening response message, the transmission node device fills the requested wireless information with the control plane message information element IE or uses a protocol data unit PDU. After assembling in a layer encapsulation manner, a wireless capability open response message is returned to the edge node.
  • the control plane message information element IE or uses a protocol data unit PDU.
  • a computer-readable storage medium stores a program for implementing information transmission.
  • the program is executed by the processor 1120, the following method steps are implemented:
  • the computer-readable storage medium described in this embodiment includes, but is not limited to, a ROM, a RAM, a magnetic disk, or an optical disk.
  • modules or steps of the present disclosure may be implemented by a general-purpose computing device, and they may be centralized on a single computing device or distributed on a network composed of multiple computing devices. Above, optionally, they may be implemented with program code executable by a computing device, so that they may be stored in a storage device and executed by the computing device, and in some cases, may be in a different order than here
  • the steps shown or described are performed either by making them into individual integrated circuit modules or by making multiple modules or steps into a single integrated circuit module. As such, the present disclosure is not limited to any particular combination of hardware and software.

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Abstract

本公开公开了一种信息传输方法、设备及计算机可读存储介质，所述方法包括：边缘节点向无线接入网侧的目标传输节点发送无线能力开放请求；边缘节点接收目标传输节点回复的无线能力开放响应信息。具体的，边缘节点通过Xm接口向无线接入网侧的目标传输节点发送无线能力开放请求；以及接收所述目标传输节点通过Xm接口或者用户面功能UPF回复的无线能力开放响应信息。本公开所述方案中边缘节点可以直接向无线接入网侧的目标传输节点发送无线能力开放请求，目标传输节点也可以直接将能力开放响应信息发送给边缘节点，无需通过核心网，很好的解决了相关技术中无线能力开放方式存在信息传递时延以及增加了核心网处理负担的问题。

Description

信息传输方法、设备及计算机可读存储介质 技术领域
本公开涉及通信领域，尤其涉及一种信息传输方法、设备及计算机可读存储介质。
背景技术
为了有效满足移动互联网、物联网高速发展所需的高带宽、低时延的要求并减轻网络负荷，ETSI(European Telecommunications Standards Institute，欧洲电信标准化协会)2014年提出了MEC(Mobile Edge Computing，移动边缘计算)的概念。
MEC技术主要通过在无线接入侧部署通用服务器，为无线接入网提供IT和云计算的能力，因此MEC也可以认为是边缘云。在2017年，为了更好的支持3GPP(3rd Generation Partnership Project第三代合作伙伴计划)和非3GPP系统，ETSI把MEC也从移动边缘计算(Mobile Edge Computing)更名为多接入边缘计算(Multi-access Edge Computing)。
3GPP在下一代网络架构研究项目(TR23.799，TR:Technical Report)和5G(5th Generation第五代移动通信技术)系统架构标准(TS23.501,TS:Technical Specification)中，都明确了MEC是5G网络架构的主要目标。3GPP 5G网络架构标准研究主要从5G网络业务需求以及架构演进趋势出发，通过用户面分布式下沉和灵活路由来实现MEC的目标。
MEC平台除了可集成5G UPF(User Plane Functionality，用户面功能)功能实现针对业务流的数据转发，还可以借助无线信息开放实现无线侧和应用层跨层信息交互和联合优化。因为MEC位于网络边缘，更靠近无线网络和用户，具有天然优势更容易实现对网络上下文信息的感知和利用，以及更便于获得实时的无线网络信息。如果开放接口把这个信息传递给第三方应用，则可以提高用户体验、优化服务、兼顾网络和服务，促进网络和业务的深度融合，带来更大的商业机会。MEC和5G架构在能力开放上的结合是MEC技术落地的一个关键因素。
在5G系统架构标准3GPP TS23.501里，确定了基于服务的网络架构SBA(Service-based architecture)，并且定义了网络和应用功能AF(Application Function，应用功能)和网络开放功能NEF(Network Exposure Function，网络开放功能)，用于无线网络能力的开放。NEF收集包括策略控制能力的网络能力，通过MEC平台和应用通信。NEF是核心网的网络功能，需要通过5G核心网进行能力开放。图1是3GPP在TS23.501中定义的基于服务的5G系统架构。在系统架构中，UE(User Equipment，终端设备)和RAN(Radio Access Network，无线接入网)节点属于无线接入侧网络功能，DN(Data Network)是数据网络，UPF是核心网的用户面功能，可以下沉到RAN侧，与本地数据网络连接。其他的网络功能属于核心网功能。这些核心网的网络逻辑功能网元具体为：SMF(Session Management Functionality)是会话管理功能，负责会话接入和管理，包括UPF选择/重选；AMF(Access and Mobility Management Function)是接入与移动性管理功能，负责UE接入和移动性管理；AUSF (Authentication Server Function)是鉴权服务器功能，负责UE鉴权；NRF(Network Repository Function)是网络功能仓库，负责建立网络功能互相发现；PCF(Policy Control Function)是策略控制功能，负责控制面的策略规则；UDM(Unified Data Management)是统一数据管理，负责用户ID(IDentity)等信息管理；NEF是网络开放功能，负责网络能力开放；AF是应用功能，负责App控制和部署，可以是运营商受信域的，也可以是第三方非受信域的。受信域的AF可以直接访问网络中相应功能，非受信域的AF通过NEF后再访问网络。在图1的架构中，无线网络信息需要发送到核心网通过NEF开放给应用。
由于RAN的信息提供不是基于服务架构的，不能直接给MEC使用。当前5G系统架构中无线网络能力的开放需要无线信息先传输到核心网，再由核心网传递到MEC。这意味着即使MEC从位置部署上更接近于无线网络和用户，但无线网络信息必须要先迂回到核心网才能在MEC获得。按照这种机制，不管核心网是否需要RAN侧信息，当MEC需要这种信息的开放时，信息也必须在核心网进行传递和处理。对一些低延迟场景，比如工业互联网、车联网等场景，对无线信息的延迟非常苛刻。同时RAN侧的无线信息繁多杂乱，使用当前的网络能力开放机制，不仅增加了信息传递的时延，还增加了核心网的处理负担。
发明内容
本公开实施例提供一种信息传输方法、设备及计算机可读存储介质，用以解决相关技术中的无线网络能力开放方式的信息传递时延大以及增加了核心网处理负担的问题。
一方面，本公开实施例提供一种信息传输方法，包括：
边缘节点向无线接入网侧的目标传输节点发送无线能力开放请求；
边缘节点接收所述目标传输节点回复的无线能力开放响应信息。
另一方面，本公开实施例提供一种信息传输方法，包括：
无线接入网侧的传输节点接收所述边缘节点发送的无线能力开放请求；
所述传输节点向所述边缘节点回复无线能力开放响应信息。
第三方面，本公开实施例提供一种信息传输装置，应用于边缘节点，包括：
请求模块，设置为向无线接入网侧的目标传输节点发送无线能力开放请求；
接收模块，设置为接收所述目标传输节点回复的无线能力开放响应信息。
第四方面，本公开实施例提供一种信息传输装置，应用于无线接入网侧的传输节点，包括：
请求接收模块，设置为接收所述边缘节点发送的无线能力开放请求；
响应模块，设置为向所述边缘节点回复无线能力开放响应信息。
第五方面，本公开实施例提供边缘节点设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如下方法步骤：
向无线接入网侧的目标传输节点发送无线能力开放请求；
接收所述目标传输节点回复的无线能力开放响应信息。
第六方面，本公开实施例提供一种传输节点设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如下方法步骤：
接收所述边缘节点发送的无线能力开放请求；
向所述边缘节点回复无线能力开放响应信息。
第七个方面，本公开实施例提供一种计算机可读存储介质，所述计算机可读存储介质上存储有信息传递的实现程序，所述程序被处理器执行时实现如上所述的应用于边缘节点的信息传递方法的步骤；或者，所述程序被处理器执行时实现如上所述的应用于无线接入网侧的传输节点的信息传递方法的步骤。
采用本公开实施例的方法边缘节点可以直接向无线接入网侧的目标传输节点发送无线能力开放请求，同时，目标传输节点也可以无需通过核心网将能力开放响应信息发送给边缘节点，很好的解决了相关技术中无线能力开放方式的信息传递时延大以及增加了核心网处理负担的问题。
上述说明仅是本公开技术方案的概述，为了能够更清楚了解本公开的技术手段，而可依照说明书的内容予以实施，并且为了让本公开的上述和其它目的、特征和优点能够更明显易懂，以下特举本公开的具体实施方式。
附图说明
通过阅读下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本公开的限制。而且在整个附图中，用相同的参考符号表示相同的部件。在附图中：
图1为5G网络架构示意图；
图2为ETSI MEC系统架构示意图；
图3为本公开实施例中边缘节点所在的系统架构图；
图4为本公开第一实施例所述的信息传递方法的流程图；
图5为本公开第三实施例所述的信息传递方法的流程图；
图6为本公开第四实施例所述的信息传递方法的流程图；
图7为本公开第七实施例所述的信息传递方法的流程图；
图8为本公开第八实施例所述的信息传递装置的结构框图；
图9为本公开第九实施例所述的信息传递装置的结构框图；
图10为本公开第十实施例提供的一种边缘节点设备的结构框图；
图11为本公开第十二实施例提供的一种传输节点设备的结构框图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。 相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
在阐述本公开实施例所述方案前，先介绍一下ETSI的MEC系统架构，如图2所示，在MEC系统架构中：Mobile edge orchestrator是移动边缘编排器，负责选择Mobile Edge host、加载应用、触发应用实例初始化和终止。Operations Support System是运营支撑系统，负责对UE和第三方客户请求的授权并转到Mobile edge orchestrator以及负责运维。User App LCM proxy(User application lifecycle management proxy)是用户应用生命周期管理代理，允许UE请求加载实例、实例终止等操作，并告知UE相应的应用实例运行状态。CFS portal(Customer facing service portal)是面向客户服务端口，允许第三方客户选择订阅一组移动边缘应用。Mobile edge manager是移动边缘管理器，管理应用的生命周期、管理应用的规则和需求、接收virtualisation infrastructure(虚拟化基础设施)的错误报告和测量。Virtualisation infrastructure manager是虚拟化基础设施管理，负责分配、管理、释放虚拟化资源以及收集并报告虚拟化资源性能和错误信息。Mobile edge host是移动边缘主机，这个实体包含移动边缘平台和虚拟化基础设施。虚拟化基础设施提供移动边缘应用的计算、存储和网络资源。Mobile edge platform是移动边缘平台，收集移动边缘应用必要的运行信息，并提供移动边缘服务。Mobile edge application是移动边缘应用，是在Mobile edge host基于虚拟化基础设施实例化的应用。User equipment application是用户设备应用，通过User App LCM proxy和移动边缘计算平台交互。
本公开实施例中，为了解决相关技术中无线能力开放方式存在信息传递时延大以及增加了核心网处理负担的问题，本公开实施例提供一种信息传输方法、装置、设备及计算机可读存储介质。下面就通过几个具体实施例对本公开的实施过程进行详细阐述。
在本公开第一实施例中，提供一种信息传输方法，应用在边缘节点，所述边缘节点可以为MEC系统、MEC主机或者MEC平台，所述边缘节点所在的系统架构图如图3所示，图3中，MEC代表边缘节点，RAN代表被请求能力开放的无线接入网侧的传输节点，该传输节点可以为无线接入节点或者无线集中控制单元CU；其中，无线接入节点可以是传统或新型无线接入系统基站或传输节点，传统基站如3GPP基站、LTE基站，新型基站如5G基站或5G以上的基站。
如图4所示，本实施例所述方法具体包括如下步骤：
步骤S301，边缘节点向无线接入网侧的目标传输节点发送无线能力开放请求；
在本公开的一个可选实施例中，边缘节点通过Xm接口向无线接入网侧的目标传输节点发送无线能力开放请求。
在本公开的另一个可选实施例中，边缘节点通过核心网向无线接入网侧的目标传输节点发送无线能力开放请求。
可选地，在本公开实施例中，边缘节点可以在所述边缘节点向无线接入网侧的目标传输节点发送连接建立请求时，携带无线能力开放请求；还可以在与目标传输节点建立连接后，单独发送无线能力开放请求。
步骤S302，边缘节点接收所述目标传输节点回复的无线能力开放响应信息。
在本公开的一个可选实施例中，边缘节点接收目标传输节点通过Xm接口回复的无线能力开放响应信息。
可见，本公开实施例所述方法，边缘节点可以通过Xm接口直接向无线接入网侧的目标传输节点发送无线能力开放请求，在接收无线能力开放响应信息时，无需通过核心网，目标传输节点将能力开放响应信息直接发送给边缘节点，很好的解决了相关技术中无线能力开放方式存在信息传递时延大以及增加了核心网处理负担的问题。
在本公开第二实施例中，提供一种信息传输方法，本实施例方案与实施例一大致相同，区别在于边缘节点接收无线能力开放响应信息的方式不同，继续如图4所示，本实施例所述方法包括如下步骤：
步骤S301，边缘节点向无线接入网侧的目标传输节点发送无线能力开放请求；
步骤S302，边缘节点接收所述目标传输节点回复的无线能力开放响应信息。
本公开实施例中，边缘节点接收所述目标传输节点回复的无线能力开放响应信息的方式包括：
方式一，边缘节点通过无线能力开放网元REF接收所述目标传输节点回复的无线能力开放响应信息；其中，所述REF将接收到的无线能力开放响应信息中的无线信息转换为所述边缘节点支持的信息格式。
具体的，本实施例中，RAN侧无线信息通过Xm接口直接发送给REF，REF把收到的信息转换成基于服务的API(Application Programming Interface，应用程序编程接口)接口提供给MEC。
其中，REF可以是独立于边缘节点的网络功能；也可以是位于边缘节点的API模块。
方式二，边缘节点接收目标传输节点通过下沉到无线接入网附近的用户面功能UPF回复的无线能力开放响应信息。
本公开实施例所述方法，边缘节点可以通过Xm接口直接向无线接入网侧的目标传输节点发送无线能力开放请求，在接收无线能力开放响应信息时，无需经过远端核心网，目标传输节点直接将能力开放响应信息发送给边缘节点，很好的解决了相关技术中无线能力开放方式存在信息传递时延大以及增加了核心网处理负担的问题。
在本公开第三实施例中，提供一种信息传输方法，如图5所示，本实施例所述方法包括如下步骤：
步骤S401，边缘节点向无线接入网侧的目标传输节点发送小区级无线能力开放请求；
其中，所述小区级无线能力开放请求中包含如下信息中的一个或多个：
移动边缘主机ID、目标传输节点ID、小区ID、请求的小区级无线信息的信息类别、以及请求的小区级无线信息的信息名称、请求的小区级无线信息响应触发方法、请求的小区级无线信息响应的周期。
本实施例中，信息类别包括如下类别中的一个或多个：标识信息、系统配置信息、系统状态信息、测量信息、承载信息、触发事件信息。
本实施例中，无线信息响应触发方法是指目标传输节点提供给边缘节点无线信息的触发方式。本实施例，边缘节点发送给目标传输节点的请求中，可以包含如使用订阅通知的方式触发请求响应，来实现对目标传输节点的无线信息的预订。例如，当目标传输节点发生特定事件时自动触发无线信息传递，或者，对一些无线信息进行周期性发送。其中，订阅、通知可以是基于小区级的、一个用户的或一组用户的。
步骤S402，边缘节点接收所述目标传输节点回复的无线能力开放响应信息。
其中，所述无线能力开放响应信息中包括如下信息中的一个或多个：移动边缘主机ID、小区ID、小区级无线信息的信息类别、以及小区级无线信息。
下面通过一个具体示例，对本实施例的具体实施过程进行详细阐述。
移动边缘系统中的无线网络信息服务RNIS(Radio Network Information Service)对移动边缘主机MEC host发起服务调用，移动边缘主机根据服务调用信息确定RAN侧目标节点(可以是基站ID和或RAN CU ID)，发起对RAN侧目标节点的能力开放请求，所述请求中包括如下信息中的一个或多个：移动边缘主机ID，目标节点ID、小区ID、请求的小区级无线信息类别、小区级无线信息的信息名称、请求的小区级无线信息响应触发方法、请求的小区级无线信息响应的周期等。
所述请求通过Xm接口发送给RAN侧目标节点，RAN侧目标节点收到消息请求后对所述移动边缘主机发起消息响应。响应消息包括移动边缘主机ID，小区ID、小区级无线信息的信息类别、和/或小区级无线信息等。
所述响应消息通过Xm接口或者UPF发送给所述移动边缘主机或请求消息中含有ID的边缘主机。即：RAN侧目标节点可以向发起请求的移动边缘主机发送响应消息，也可以向请求中携带的主机ID(可以与发起请求的主机不同)对应的移动边缘主机发送响应消息。
在本公开第四实施例中，提供一种信息传输方法，如图6所示，本实施例所述方法包括如下步骤：
步骤S501，边缘节点向无线接入网侧的目标传输节点发送用户级无线能力开放请求；
其中，用户级无线能力开放请求中包含如下信息中的一个或多个：
移动边缘主机ID、目标传输节点ID、无线网络信息服务对象的通用标识、请求的用户级无线信息的信息类别、以及请求的用户级无线信息的信息名称、请求的用户级无线信息响应触发方法、请求的用户级无线信息响应的周期。
本实施例中，信息类别包括如下类别中的一个或多个：标识信息、系统配置信息、系统状态信息、测量信息、承载信息、触发事件信息。
本实施例中，无线信息响应触发方法是指目标传输节点提供给边缘节点无线信息的触发方式。本实施例，边缘节点发送给目标传输节点的请求中，可以包含如使用订阅通知的方式触发请求响应，来实现对目标传输节点的无线信息的预订。例如，当目标传输节点发生特定 事件时自动触发无线信息传递，或者，对一些无线信息进行周期性发送。其中，订阅通知可以是基于一个用户的或一组用户的。
步骤S502，边缘节点接收所述目标传输节点回复的无线能力开放响应信息。
所述无线能力开放响应信息中包括如下信息中的一个或多个：
移动边缘主机ID、目标传输节点ID、无线网络信息服务对象的通用标识、用户级无线信息的信息类别、以及用户级无线信息。
在本公开的一个可选实施例中，边缘节点向无线接入网侧的目标传输节点发送无线能力开放请求之前，还包括：
边缘节点向核心网侧发起对指定无线网络信息服务对象的通用标识获取的请求；边缘节点接收所述核心网侧返回的所述对象的通用标识。其中，无线网络信息服务对象包括如下对象中的一个或多个：用户设备，业务流。
即，本实施例中，通过核心网让边缘节点和无线接入网侧的传输节点相互识别对象标识。
本实施例主要是考虑到，MEC应用发起对具体UE的无线网络信息服务时，使用的是用户的外部标识如MSISDN(Mobile Subscriber Integrated Service Digital Network Number，移动台ISDN号码)、IMSI(International Mobile Subscriber Identification Number，国际移动用户识别码)等，但是RAN侧使用的是用户在网络中的内部标识如RNTI(Radio Network Temporary Identity)等。
MEC与核心网通过Nm接口(属于5G的Ng接口)连接，MEC向核心网发起能力开放请求来获取核心网信息，该请求中包含具体的UE外部标识。核心网把来自MEC的UE标识转换成核心网的UE标识信息比如AMF NGAP(Next Generation Application Protocol)ID，分别发送给MEC和RAN侧节点。MEC用AMF NGAP ID请求RAN侧节点具有相同标识的UE无线信息。在收到带有这个UE标识的能力开放请求后，RAN侧节点把有该标识的UE无线信息传递到MEC。为减少延迟，核心网AMF可以下沉到RAN侧。
在本公开第五实施例中，结合第三、四实施例的内容，主要阐述无线接入网侧的目标传输节点提供给边缘节点的无线信息的类型。
由第三、第四实施例可知，目标传输节点提供给边缘节点的无线信息可以是小区级的、也可以是用户级的。
如果是小区级的无线信息，可以直接通过Xm接口进行边缘节点和目的传输节点的信息传递。
如果是用户级的无线信息，由于目的传输节点侧用户标识和边缘节点侧的用户标识不同，则需要核心网为目的传输节点和边缘节点分配一个相同的标识比如UE AMF NGAP ID，目的传输节点和边缘节点进行相同用户标识下的信息传递。
本公开实施例中，边缘节点和目的传输节点之间传递的无线信息可以分为层1/层2/层3信息；如V2X场景，需要根据层2信息进行应用的优化。其中，层1为物理层、层2为PDCP(Packet Data Convergence Protocol)、RLC(Radio Link Control)、MAC(Medium Access Control)层、 层3为RRC(Radio Resource Control)层。
可选地，边缘节点和目的传输节点之间传递的无线信息还可以分为静态信息和动态信息。静态信息如配置信息等，动态信息如测量信息、性能统计等。不同的信息可使用不同的触发方式。如配置信息可以在RAN发送给MEC的请求响应中获取，也可以在核心网对MEC的响应消息中获得。测量信息的获取可以是RAN对MEC周期发送无线信息，也可以是切换事件触发RAN对MEC的无线信息传递。
可选地，边缘节点和目的传输节点之间传递的无线信息还可以根据应用需求分为标识信息、系统配置信息、系统状态信息、测量信息、承载信息、触发事件信息。标识信息包括但不限于如网络标识、UE标识，基站标识，承载标识，PDU会话标识、业务流标识等；系统配置信息包括但不限于小区配置参数、窗口长度、切换门限值等配置参数信息；系统状态信息包括但不限于；时频资源占用情况，用户激活状态，负载指示、包延迟、丢包率、调度IP(Internet Protocol)吞吐量等；测量信息包括但不限于RSRQ(Reference Signal Received Quality)、RSRP(Reference Signal Received Power)、CQI(Channel Quality Indicator)报告等；承载信息包括但不限于E-RAB，QoS(Quality of Service)、QCI(Qos Classification ID)，MBR(Maximum Bit Rate)/GBR(Duranteed Bit Rate)，S1承载相关IP地址，隧道ID；触发事件包括但不限于小区接入、切换等。
在本公开第六实施例中，提供一种信息传输方法，本实施例通过介绍MEC与RAN节点交互流程，对信息传递方法进行更详尽的阐述。
MEC应用通过无线网络信息服务向移动边缘平台发起无线信息调用，移动边缘主机查询MEC是否与目标RAN节点建立连接。
如果没有建立接连，则移动边缘主机发起连接建立请求过程。请求消息中包含连接建立请求信息，或者，连接建立请求信息和无线能力开放请求信息，当请求消息中包含连接建立请求信息和无线能力开放请求信息时，请求消息内容具体为下列之一或组合：连接建立请求，MEC host ID，RAN基站ID(或CU ID)，小区ID、用户ID，请求无线信息的类别，无线信息名称，无线信息的触发方式、无线信息响应的周期等。
RAN基站ID(或CU ID)收到建立连接请求消息后，发送连接建立响应消息。响应消息可以是连接建立成功、连接建立失败。在连接建立成功消息中可包括无线信息响应，内容具体可以是下列之一或组合：连接建立成功，MEC host ID，RAN基站ID(或CU ID)，小区ID、用户ID，具体无线信息。
如果MEC已经和RAN节点建立连接，且MEC在建立连接时未发送无线能力开放请求，则MEC发起无线能力开放请求，该请求内容具体为下列之一或组合：MEC host ID，RAN基站ID(或CU ID)，小区ID、用户ID，请求无线信息的类别，无线信息名称，无线信息的触发方式、无线信息响应的周期等。
RAN基站ID(或CU ID)收到无线能力开放请求后，发送无线信息响应消息。响应消息内容具体可以是下列之一或组合：MEC host ID，RAN基站ID(或CU ID)，小区ID、用户ID， 具体无线信息等。
如果MEC已经和RAN节点建立连接，且一些无线信息的发送方式是周期性或事件触发，则RAN节点会根据触发条件发送这些无线信息给MEC，消息内容具体可以是下列之一或组合：MEC host ID，RAN基站ID(或CU ID)，小区ID、用户ID，具体无线信息等。
在本公开第七实施例中，提供一种信息传输方法，应用在无线接入网侧的传输节点，该传输节点可以为无线接入节点或者无线集中控制单元CU；其中，无线接入节点可以是传统或新型无线接入系统基站或传输节点，传统基站如3GPP基站、LTE基站，新型基站如5G基站或未来5G以上的基站。
如图7所示，本实施例所述方法包括如下步骤：
步骤S601，无线接入网侧的传输节点接收所述边缘节点发送的无线能力开放请求；
步骤S602，所述传输节点向所述边缘节点回复无线能力开放响应信息。
本实施例中，传输节点通过Xm接口或者用户面功能UPF回复无线能力开放响应信息。
可选地，本实施例中，传输节点向所述边缘节点回复无线能力开放响应信息时，传输节点将请求的无线信息使用控制面消息信息元素IE填充的方式或者使用协议数据单元PDU多层封装的方式进行组装后，向所述边缘节点回复无线能力开放响应信息。
具体的，如果为了满足所有应用需求，则需要RAN开放的层1、层2以及层3的信息非常多。但对某个具体应用，可能需要开放的信息很少。
一种方式是对每层需要提供的信息通过控制面透明传输，对各层信息使用消息IE的方式进行逐步填充。这种方式对时延要求低的场景比较适合。
另一种方式是对各层信息通过数据面逐层进行包封装，传递到MEC后再逐层解包。这种方式对实时性要求不太高的信息开放比较适合。
对无线信息的传递，除了可以通过Xm发送给MEC，也可通过UPF发送给MEC。对Xm接口数据量受限或没有Xm接口的MEC设备，把无线信息打包插入数据流作为用户面数据通过下沉到本地数据网络的UPF传输，也是一种选择。
与应用于边缘节点侧的方法实施例相对应的，在本公开第八实施例中，提供一种信息传输装置，应用于边缘节点，如图8所示，包括：
请求模块710，用于向无线接入网侧的目标传输节点发送无线能力开放请求；
接收模块720，用于接收所述目标传输节点回复的无线能力开放响应信息。
可选地，本公开实施例中，请求模块710通过Xm接口向无线侧的目标传输节点发送无线能力开放请求。
可选地，本公开实施例中，接收模块720接收所述目标传输节点通过Xm接口或者用户面功能UPF回复的无线能力开放响应信息。
可选地，本公开实施例中，当接收模块720接收所述目标传输节点回复的无线能力开放响应信息时，进一步用于通过无线能力开放网元REF接收所述目标传输节点回复的无线能 力开放响应信息；其中，所述REF将接收到的无线能力开放响应信息中的无线信息转换为所述边缘节点支持的信息格式。
可选地，本公开实施例中，请求模块710，进一步用于向所述无线接入网侧的目标传输节点发送连接建立请求，所述连接建立请求中包含所述无线能力开放请求。
可选地，本公开实施例中，所述无线能力开放请求包括：用户级无线能力开放请求和/或小区级无线能力开放请求。
可选地，本公开实施例中，当所述无线能力开放请求包括：用户级无线能力开放请求时，所述无线能力开放请求中包含如下信息中的一个或多个：
移动边缘主机ID、目标传输节点ID、无线网络信息服务对象的通用标识、请求的用户级无线信息的信息类别、以及请求的用户级无线信息的信息名称、请求的用户级无线信息响应触发方法、请求的用户级无线信息响应的周期；
所述无线能力开放响应信息中包括如下信息中的一个或多个：
移动边缘主机ID、目标传输节点ID、无线网络信息服务对象的通用标识、用户级无线信息的信息类别、以及用户级无线信息。
可选地，本公开实施例中：
请求模块710，进一步用于在向无线接入网侧的目标传输节点发送无线能力开放请求之前，向核心网侧发起对指定无线网络信息服务对象的通用标识获取的请求；
接收模块720，进一步用于接收所述核心网侧返回的所述对象的通用标识。
其中，所述无线网络信息服务对象包括如下对象中的一个或多个：用户设备，业务流。
可选地，本公开实施例中：
当所述无线能力开放请求包括小区级无线能力开放请求时，所述无线能力开放请求中包含如下信息中的一个或多个：
移动边缘主机ID、目标传输节点ID、小区ID、请求的小区级无线信息的信息类别、以及请求的小区级无线信息的信息名称、请求的小区级无线信息响应触发方法、请求的小区级无线信息响应的周期；
所述无线能力开放响应信息中包括如下信息中的一个或多个：
移动边缘主机ID、小区ID、小区级无线信息的信息类别、以及小区级无线信息。
可选地，本公开实施例中，所述信息类别包括如下类别中的一个或多个：标识信息、系统配置信息、系统状态信息、测量信息、承载信息、触发事件信息。
可选地，本公开实施例中，所述边缘节点为移动边缘计算MEC系统、MEC主机或者MEC平台；所述目标传输节点为无线接入节点或者无线集中控制单元CU。
本实施例中各模块的实施细节，可参见方法实施例部分的描述，本实施例不再赘述。
本实施例所述装置，使得边缘节点可以通过Xm接口直接向无线接入网侧的目标传输节点发送无线能力开放请求，在接收无线能力开放响应信息时，无需经过核心网，目标传输节点直接将能力开放响应信息发送给边缘节点，很好的解决了相关技术中无线能力开放方式存在信息传递时延大以及增加了核心网处理负担的问题。
与应用于无线接入网侧的传输节点的方法实施例相对应的，在本公开第九实施例中，提供一种信息传输装置，应用于无线接入网侧的传输节点，如图9所示，包括：
请求接收模块810，用于接收所述边缘节点发送的无线能力开放请求；
响应模块820，用于向所述边缘节点回复无线能力开放响应信息。
可选地，本公开实施例中，响应模块820，具体用于将请求的无线信息使用控制面消息信息元素IE填充的方式或者使用协议数据单元PDU多层封装的方式进行组装后，向所述边缘节点回复无线能力开放响应信息。
可选地，本公开实施例中，响应模块820通过Xm接口或者用户面功能UPF回复无线能力开放响应信息。
可选地，本公开实施例中，所述边缘节点为MEC系统、MEC主机或者MEC平台；所述传输节点为无线接入节点或者无线集中控制单元CU。
本实施例所述装置，使得边缘节点可以直接向无线接入网侧的目标传输节点发送无线能力开放请求，同时，目标传输节点也可以无需通过核心网将能力开放响应信息发送给边缘节点，很好的解决了相关技术中无线能力开放方式存在信息传递时延大以及增加了核心网处理负担的问题。
在本公开第十实施例中，提供一种边缘节点设备，如图10所示，包括：存储器1010、处理器1020及存储在所述存储器1010上并可在所述处理器1020上运行的计算机程序，所述计算机程序被所述处理器1020执行时实现如下方法步骤：
向无线接入网侧的目标传输节点发送无线能力开放请求；
接收所述目标传输节点回复的无线能力开放响应信息。
在本公开的一个可选实施例中，边缘节点设备通过Xm接口向无线接入网侧的目标传输节点发送无线能力开放请求。
在本公开的一个可选实施例中，边缘节点设备接收目标传输节点通过Xm接口或者用户面功能UPF回复的无线能力开放响应信息。
本公开实施例中，边缘节点设备接收所述目标传输节点回复的无线能力开放响应信息的方式包括：
方式一，边缘节点设备通过无线能力开放网元REF接收所述目标传输节点回复的无线能力开放响应信息；其中，所述REF将接收到的无线能力开放响应信息中的无线信息转换为所述边缘节点支持的信息格式。
方式二，边缘节点设备接收目标传输节点通过用户面功能UPF回复的无线能力开放响应信息。
本公开实施例中，所述无线能力开放请求包括小区级无线能力开放请求和用户级无线能力开放请求。具体的实施例过程可参见第三、四实施例。本实施例不再赘述。
对于上述步骤的实施过程，可参见应用于边缘节点侧的方法实施例，本实施例不再赘述。
在本公开第十一实施例中，提供一种计算机可读存储介质，所述计算机可读存储介质上存储有信息传输的实现程序，所述程序被处理器1020执行时实现如下方法步骤：
向无线接入网侧的目标传输节点发送无线能力开放请求；
接收所述目标传输节点回复的无线能力开放响应信息。
对于上述步骤的实施过程，可参见应用于边缘节点侧的方法实施例，本实施例不再赘述。
在本公开第十二实施例中，提供一种传输节点设备，如图11所示，包括：存储器1110、处理器1120及存储在所述存储器1110上并可在所述处理器1120上运行的计算机程序，所述计算机程序被所述处理器1120执行时实现如下方法步骤：
接收所述边缘节点发送的无线能力开放请求；
向所述边缘节点回复无线能力开放响应信息。
本实施例中，传输节点设备通过Xm接口或者用户面功能UPF回复无线能力开放响应信息。
可选地，本实施例中，传输节点设备向所述边缘节点回复无线能力开放响应信息时，传输节点设备将请求的无线信息使用控制面消息信息元素IE填充的方式或者使用协议数据单元PDU多层封装的方式进行组装后，向所述边缘节点回复无线能力开放响应信息。对于上述步骤的实施过程，可参见应用于无线接入网侧的传输节点侧的方法实施例，本实施例不再赘述。
在本公开第十三实施例中，提供一种计算机可读存储介质，所述计算机可读存储介质上存储有信息传输的实现程序，所述程序被处理器1120执行时实现如下方法步骤：
接收所述边缘节点发送的无线能力开放请求；
向所述边缘节点回复无线能力开放响应信息。
对于上述步骤的实施过程，可参见应用于无线接入网侧的传输节点侧的方法实施例，本实施例不再赘述。
本实施例所述计算机可读存储介质包括但不限于为：ROM、RAM、磁盘或光盘等。
显然，本领域的技术人员应该明白，上述的本公开的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本公开不限制于任何特定的硬件和软件结合。
以上所述仅为本公开的优选实施例而已，并不用于限制本公开，对于本领域的技术人员来说，本公开可以有各种更改和变化。凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。

Claims (18)

  1. 一种信息传输方法，包括：
    边缘节点向无线接入网侧的目标传输节点发送无线能力开放请求；
    边缘节点接收所述目标传输节点回复的无线能力开放响应信息。
  2. 如权利要求1所述的方法，其中，所述边缘节点通过Xm接口向无线接入网侧的目标传输节点发送无线能力开放请求。
  3. 如权利要求1所述的方法，其中，所述边缘节点接收所述目标传输节点通过Xm接口或者用户面功能UPF回复的无线能力开放响应信息。
  4. 如权利要求1或3所述的方法，其中，当所述边缘节点接收所述目标传输节点回复的无线能力开放响应信息时，进一步包括：
    所述边缘节点通过无线能力开放网元REF接收所述目标传输节点回复的无线能力开放响应信息；其中，所述REF将接收到的无线能力开放响应信息中的无线信息转换为所述边缘节点支持的信息格式。
  5. 如权利要求1所述的方法，其中，所述边缘节点向无线接入网侧传输节点发送无线能力开放请求，包括：
    所述边缘节点向无线接入网侧的目标传输节点发送连接建立请求，所述连接建立请求中包含所述无线能力开放请求。
  6. 如权利要求1或2或3或5所述的方法，其中，所述无线能力开放请求包括：用户级无线能力开放请求和/或小区级无线能力开放请求。
  7. 如权利要求6所述的方法，其中，当所述无线能力开放请求包括：用户级无线能力开放请求时，所述无线能力开放请求中包含如下信息中的一个或多个：
    移动边缘主机ID、目标传输节点ID、无线网络信息服务对象的通用标识、请求的用户级无线信息的信息类别、以及请求的用户级无线信息的信息名称、请求的用户级无线信息响应触发方法、请求的用户级无线信息响应的周期；
    所述无线能力开放响应信息中包括如下信息中的一个或多个：
    移动边缘主机ID、目标传输节点ID、无线网络信息服务对象的通用标识、用户级无线信息的信息类别、以及用户级无线信息。
  8. 如权利要求7所述的方法，其中，所述边缘节点向无线接入网侧的目标传输节点发送无线能力开放请求之前，还包括：
    所述边缘节点向核心网侧发起对指定无线网络信息服务对象的通用标识获取的请求；
    所述边缘节点接收所述核心网侧返回的所述对象的通用标识。
  9. 如权利要求7或8所述的方法，其中，所述无线网络信息服务对象至少包括如下对象之一：用户设备，业务流。
  10. 如权利要求6所述的方法，其中，当所述无线能力开放请求包括小区级无线能力开放请求时，所述无线能力开放请求中包含如下信息中的一个或多个：
    移动边缘主机ID、目标传输节点ID、小区ID、请求的小区级无线信息的信息类别、以及请求的小区级无线信息的信息名称、请求的小区级无线信息响应触发方法、请求的小区级无线信息响应的周期；
    所述无线能力开放响应信息中包括如下信息中的一个或多个：
    移动边缘主机ID、小区ID、小区级无线信息的信息类别、以及小区级无线信息。
  11. 如权利要求7或10所述的方法，其中，所述信息类别包括如下类别中的一个或多个：标识信息、系统配置信息、系统状态信息、测量信息、承载信息、触发事件信息。
  12. 如权利要求7或10所述的方法，其中，所述无线信息响应触发方法包括：通过订阅或通知的形式触发无线信息传递的信息响应。
  13. 一种信息传输方法，，包括：
    无线接入网侧的传输节点接收所述边缘节点发送的无线能力开放请求；
    所述传输节点向所述边缘节点回复无线能力开放响应信息。
  14. 如权利要求13所述的方法，其中，所述传输节点向所述边缘节点回复无线能力开放响应信息，包括：
    所述传输节点将请求的无线信息使用控制面消息信息元素IE填充的方式或者使用协议数据单元PDU多层封装的方式进行组装后，向所述边缘节点回复无线能力开放响应信息。
  15. 如权利要求13或14所述的方法，其中，所述传输节点通过Xm接口或者用户面功能UPF回复无线能力开放响应信息。
  16. 一种边缘节点设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1至12中任一项所述的信息传递方法的步骤。
  17. 一种传输节点设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求13至15中任一项所述的信息传递方法的步骤。
  18. 一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有信息传递的实现程序，所述程序被处理器执行时实现如权利要求1至12中任一项所述的信息传递方法的步骤，或者，所述程序被处理器执行时实现如权利要求13至15中任一项所述的信息传递方法的步骤。
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