WO2022127629A1 - 一种接入网、通信系统及服务提供方法、存储介质 - Google Patents

一种接入网、通信系统及服务提供方法、存储介质 Download PDF

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Publication number
WO2022127629A1
WO2022127629A1 PCT/CN2021/135552 CN2021135552W WO2022127629A1 WO 2022127629 A1 WO2022127629 A1 WO 2022127629A1 CN 2021135552 W CN2021135552 W CN 2021135552W WO 2022127629 A1 WO2022127629 A1 WO 2022127629A1
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service
network
function module
positioning
access network
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PCT/CN2021/135552
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English (en)
French (fr)
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李娜
刘光毅
孙军帅
王莹莹
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中国移动通信有限公司研究院
中国移动通信集团有限公司
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Publication of WO2022127629A1 publication Critical patent/WO2022127629A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition

Definitions

  • the present disclosure relates to the field of wireless communication technologies, and in particular, to an access network, a communication system, a service providing method, and a storage medium.
  • the use of the communication architecture in the related art will result in a complicated communication process and a large delay.
  • the present disclosure provides an access network, a communication system, a service providing method, and a storage medium, so as to reduce the time delay in the process of providing services.
  • An access network comprising:
  • the access network includes at least one access network network function module, wherein:
  • the access network network function module and the core network network function module are interconnected through a service interface, and the core network includes at least one core network network function module;
  • the access network network function module exchanges information with the corresponding one or more core network network function modules
  • the access network and the core network are based on a service-oriented architecture.
  • the network function modules of the access network are interconnected through a service interface.
  • the access network network function module is further configured to exchange information with one or more core network network function modules after being determined by the core network network function module according to service requirements.
  • the service requirement is one of the following services or a combination thereof:
  • Positioning Accuracy Requirement Service Positioning Period Service, Positioning Duration Service, Positioning Method Service, Multicast or Broadcast Range Requirement Service, Multicast or Broadcast Reliability Service, Multicast or Broadcast Frequency Resource Requirement Service, Data Transmission Rate Requirement Service, Data Transmission Reliability requires service, and data transmission delay requires service.
  • the network function module of the access network is one of the following function modules or a combination thereof:
  • a connection and mobility management function module a cell group management function module, a session management function module, a cell group execution entity module, a session execution entity module, and a user plane execution entity module.
  • connection and mobility management function module is used to send configuration information to the UE, provide UE cell-level location estimation, and provide measurement results;
  • the cell group management function module includes: an access point group management unit and/or a time-frequency resource allocation management unit, wherein:
  • an access point group management unit configured to determine a group of access points to serve the UE according to a user, and/or to determine a group of access points to serve the UE according to an area;
  • a time-frequency resource allocation management unit configured to specify resource allocation rules corresponding to different channel qualities and/or different business QoS requirements
  • a session management function module for generating bearer-related configuration information
  • the cell group execution entity module is used to execute the control instruction issued by the cell group management function
  • the session execution entity module is used to execute the control instruction issued by the session management function
  • the user plane execution entity module is used to complete the user plane data transmission.
  • a core network comprising:
  • the core network network function module and the access network network function module are interconnected through the service interface;
  • the core network network function module is used to exchange information with one or more access network network function modules;
  • the core network and the access network are based on a service-oriented architecture.
  • the core network network function module is further configured to perform information interaction with one or more access network network function modules determined according to service requirements.
  • the service requirement is one of the following services or a combination thereof:
  • Positioning Accuracy Requirement Service Positioning Period Service, Positioning Duration Service, Positioning Method Service, Multicast or Broadcast Range Requirement Service, Multicast or Broadcast Reliability Service, Multicast or Broadcast Frequency Resource Requirement Service, Data Transmission Rate Requirement Service, Data Transmission Reliability requires service, and data transmission delay requires service.
  • a communication system includes: the core network, and the access network.
  • the service requirement is one of the following services or a combination thereof:
  • Positioning Accuracy Requirement Service Positioning Period Service, Positioning Duration Service, Positioning Method Service, Multicast or Broadcast Range Requirement Service, Multicast or Broadcast Reliability Service, Multicast or Broadcast Frequency Resource Requirement Service, Data Transmission Rate Requirement Service, Data Transmission Reliability requires service, and data transmission delay requires service.
  • a service providing method for the above communication system comprising:
  • the core network network function module determines one or more access network network function modules according to the service request; or, the access network network function module determines corresponding one or more access network network function modules that provide service requirements according to the service request;
  • Each access network network function module and each core network network function module exchange information according to service requirements, so as to provide services.
  • the service request is a positioning service request
  • the core network network function module is LMF
  • the access network network function module is one of the following modules or a combination thereof: AMM, CGM, UPE.
  • LMF communicates with AMM or UPE for information exchange
  • the positioning method is OTDOA or UTDOA positioning
  • LMF and CGM exchange information
  • the LMF communicates with the AMM for information exchange
  • LMF exchanges information with AMM or UPE
  • the LMF communicates with the UPE for information exchange.
  • the service request is a multicast broadcast service request
  • the core network network function module is BM-SC;
  • the access network network function module is one of the following modules or a combination thereof: RSM, CGM, AMM.
  • the BM-SC sends a message carrying at least the multicast or broadcast QoS requirements to the RSM;
  • the BM-SC sends a message to the CGM carrying at least a multicast or broadcast area requirement, and/or a multicast or broadcast frequency resource requirement.
  • a computer-readable storage medium storing a computer program for executing the above-mentioned service providing method.
  • the access network is based on a service-oriented architecture and includes at least one network function module of the access network
  • the core network is also a core network based on the service-oriented architecture and includes at least one network function module of the core network
  • the access network network function module and the core network network function module related to providing the service can be determined according to the service requirements.
  • the interfaces are interconnected, and each access network network function module and each core network network function module can exchange information according to service requirements to provide services. It can be seen that because the connection between the access network and the core network functional modules is opened through the service interface, the access network can directly communicate with the relevant core network nodes, so it can overcome the fixed communication interface and communication path between traditional network elements. , it is not necessary to define the interface between any two network elements, which can avoid the unnecessary signaling interaction process, thereby reducing the communication delay.
  • the processes that can be executed serially in the access network can be executed in parallel, which further reduces the data processing delay.
  • FIG. 1 is a schematic diagram of a communication system architecture in an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart of implementing a service providing method of a communication system in an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a positioning implementation flowchart in an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a flowchart for implementing a multicast broadcast service in an embodiment of the present disclosure.
  • NR nodeB 5G New Radio (NR) node
  • LMF Location Management Function
  • AMF Mobility Management Function
  • the UE positioning request message must go through the AMF to reach the LMF, and the LMF needs to negotiate with the gNB through the AMF to measure the relevant configuration, and then the LMF will The configuration information is forwarded to the UE through the AMF and gNB for measurement, and the UE reports the measurement result to the LMF through the gNB and AMF. After the LMF calculates, the position estimate is returned to the LCS client.
  • LCS Location Service
  • UE User Equipment
  • the core network has simplified the interaction process within the core network through service-oriented design, the interaction between the base station and the core network elements still needs to pass through the AMF, and the relevant information is forwarded by the AMF to other core network elements, or other core network elements. The element still needs to communicate with the base station via AMF.
  • the transmission delay increases by about 10-20ms. Therefore, the transmission delay caused by the complex communication process will not meet the strict positioning delay requirements of vertical industries. For example, vertical industries such as the Internet of Vehicles and smart factories require the positioning acquisition delay to be less than 500ms. In addition to the delay caused by the communication process, the positioning acquisition delay also includes the necessary measurement time overhead and location calculation time overhead.
  • the connection between the base station and the core network element is opened through the service interface, so that the base station can directly communicate with the relevant core network.
  • Network nodes communicate with each other to avoid unnecessary signaling interaction procedures, thereby reducing communication delay.
  • the structure of the base station is further modularized, so that the processes originally executed in sequence in the base station can be executed in parallel, which further reduces the data processing delay.
  • the implementation description of the access network and the core network side will be involved, and an example of the cooperation between the two will be given to better understand the implementation of the solutions given in the embodiments of the present disclosure.
  • This description does not mean that the two must be implemented together or separately.
  • the access network and the core network are implemented separately, they also solve their own problems, but when the two are used together , will get better technical effect.
  • FIG. 1 is a schematic diagram of a communication system architecture.
  • the control plane (CP) function and the user plane (User Plane, UP) function are used to illustrate the network function modules of the access network, wherein Uu represents the connection between the UE and the access network.
  • the air interface between the UEs can include a control plane interface and a user plane interface.
  • N Uu-CP can be understood as the control plane interface between the UE and the access network
  • N Uu-UP can be understood as the user interface between the UE and the access network.
  • the interface interface of the core network indicates the network function module of the core network with the functions of the core network control plane and the core network user plane. As shown in the figure, it includes: a core network including at least one core network network function module based on a service-oriented architecture, and an access network ,in:
  • the core network network function module is used for information interaction with one or more access network network function modules determined according to service requirements.
  • the access network includes at least one access network network function module, wherein:
  • the access network network function module and the core network network function module are interconnected through a service interface, and the core network includes at least one core network network function module;
  • the access network network function module exchanges information with the corresponding one or more core network network function modules
  • the access network and the core network are based on a service-oriented architecture.
  • the access network is based on a service-oriented architecture, and includes at least one access network network function module, wherein:
  • Each access network network function module is interconnected with each core network network function module through a service-oriented interface, and the core network is a core network including at least one core network network function module based on a service-oriented architecture;
  • the access network network function module is used to exchange information with the corresponding one or more core network network function modules after the core network is determined according to service requirements.
  • the structure of the access network is further modularized, so that the processes originally executed in sequence in the access network can be executed in parallel, thereby further reducing the data processing delay.
  • the network function modules of the access network are interconnected through a service interface.
  • the core network network function can communicate with at least two access network network functions at the same time, and the selection of the access network network function is determined by the core network network function based on service requirements.
  • the service requirement is one of the following services or a combination thereof:
  • Positioning Accuracy Requirement Service Positioning Period Service, Positioning Duration Service, Positioning Method Service, Multicast or Broadcast Range Requirement Service, Multicast or Broadcast Reliability Service, Multicast or Broadcast Frequency Resource Requirement Service, Data Transmission Rate Requirement Service, Data Transmission Reliability requires service, and data transmission delay requires service.
  • the service requirements may be one or a combination of the following: positioning accuracy requirements, positioning period, positioning duration, positioning method, multicast or broadcast range requirements, multicast or broadcast reliability, multicast or broadcast frequency resource requirements, data transmission Rate requirements, data transmission reliability requirements, data transmission delay requirements, etc.
  • the network function module of the access network is one of the following function modules or a combination thereof:
  • a connection and mobility management function module a cell group management function module, a session management function module, a cell group execution entity module, a session execution entity module, and a user plane execution entity module.
  • the network functions of the access network include at least one of the following: connection and mobility management (Access and Mobility Management, AMM), cell group management (Cell Group Management, CGM), session management (Radio Session Management, RSM), cell Group execution entity (Cell Group Entity, CGE), session execution entity (Radio Session Entity, RSE), user plane execution entity (User Plane Entity, UPE).
  • connection and mobility management Access and Mobility Management, AMM
  • cell group management CGM
  • session management Radio Session Management
  • RSM cell Group execution entity
  • CGE Cell Group Entity
  • RSE Radio Session Entity
  • UPE User Plane Entity
  • connection and mobility management function module is used to send configuration information to the UE, provide UE cell-level location estimation, and provide measurement results;
  • connection and mobility management functions include: sending configuration information to the UE through a Radio Resource Control (RRC) message, providing UE cell-level location estimation, providing angle-of-arrival (AOA), Time advance (Timing Advance, TA) and other measurement results.
  • RRC Radio Resource Control
  • AOA angle-of-arrival
  • TA Time advance
  • the cell group management function module includes: an access point group management unit and/or a time-frequency resource allocation management unit, wherein:
  • an access point group management unit configured to determine a group of access points to serve the UE according to a user, and/or to determine a group of access points to serve the UE according to an area;
  • a time-frequency resource allocation management unit configured to specify resource allocation rules corresponding to different channel qualities and/or different business QoS requirements
  • the cell group management function may include: access point group management, time-frequency resource allocation management.
  • Access point group management Determine which access points are grouped to serve a certain UE (user-centric networks), or determine which access points are grouped to serve UEs in an area (multicast broadcast, system information broadcast, etc.).
  • Time-frequency resource allocation management Specify resource allocation rules corresponding to different channel qualities and/or different service quality of service (Quality of Service, QoS) requirements. For example, for data on bearer 1, it needs to be transmitted on radio resources with channel quality higher than threshold 1, and the allocated resources must not be less than x bits.
  • QoS Quality of Service
  • the session management function module is used to generate the configuration information related to the bearer
  • the session management function is used to generate bearer-related configuration information, including: mapping between QoS flows (QoS Flow) and wireless bearers, Packet Data Convergence Protocol (PDCP), Radio Link Control (Radio Link Control) Control, RLC), or media access control (Media Access Control, MAC) and other configuration parameters.
  • QoS Flow Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC media access control
  • the cell group execution entity module is used to execute the control instruction issued by the cell group management function
  • the cell group execution entity executes the control instruction issued by the cell group management function.
  • the session execution entity module is used to execute the control instruction issued by the session management function
  • the session execution entity executes the control instruction issued by the session management function.
  • the user plane execution entity module is used to complete the user plane data transmission
  • the user plane execution entity completes the user plane data transmission.
  • FIG. 2 is a schematic diagram of the implementation flow of the service provision method of the communication system. As shown in the figure, it may include:
  • Step 201 receiving a service request
  • Step 202 The core network network function module determines one or more access network network function modules according to the service request; or, the access network network function module determines one or more access network network functions corresponding to the service requirements according to the service request module;
  • each access network network function module and each core network network function module exchange information according to service requirements, so as to provide services.
  • the following description takes the positioning service and the multicast broadcasting service as examples.
  • Hybrid positioning that is, a combination of multiple positioning techniques to provide higher-precision positioning.
  • Available positioning methods include: network-assisted Global Navigation Satellite System (GNSS) method, Observed Time Difference Of Arrival (OTDOA) positioning, Enhanced Cell-ID-based positioning method (Enhanced Cell- ID positioning method, E-CID), Uplink Time Difference of Arrival (UTDOA) positioning, Wireless Local Area Network (WLAN) positioning, Bluetooth positioning, sensor-based positioning, Secure User Plane positioning (Secure User Plane) Plane Location, SUPL), etc.
  • GNSS Global Navigation Satellite System
  • OTDOA Observed Time Difference Of Arrival
  • E-CID Enhanced Cell-ID positioning method
  • UTDA Uplink Time Difference of Arrival
  • WLAN Wireless Local Area Network
  • Bluetooth positioning sensor-based positioning
  • sensor-based positioning Secure User Plane positioning (Secure User Plane) Plane Location, SUPL), etc.
  • the service request is a positioning service request
  • the core network network function module is LMF
  • the access network network function module is one of the following modules or a combination thereof: AMM, CGM, UPE.
  • LMF communicates with AMM or UPE for information exchange
  • the positioning method is OTDOA or UTDOA positioning
  • LMF and CGM exchange information
  • the LMF communicates with the AMM for information exchange
  • LMF exchanges information with AMM or UPE
  • the LMF communicates with the UPE for information exchange.
  • Figure 3 is a schematic diagram of a positioning implementation process, as shown in the figure, may include:
  • Step 301 Receive a location service request.
  • the Location Management Function receives a location request from the core network network function (eg, Access and Mobility Management Function, AMF), or the location service client, or the access network network function, or the UE, and the request message It carries the positioning accuracy requirements, and can also carry information such as the ID of the cell where the UE is currently located, the requirements for obtaining positioning time, the positioning method recommendations, and the positioning cycle recommendations;
  • AMF Access and Mobility Management Function
  • Step 302 Based on the received information, the LMF determines a combination scheme of positioning methods to be adopted.
  • the LMF needs to communicate with the AMM or UPE; that is, the network-assisted GNSS assistance information needs to be sent to the UE through the AMM or UPE.
  • the LMF needs to communicate with the CGM; that is, the CGM determines the transmission point or cell participating in this OTDOA or UTDOA positioning.
  • the CGM needs to send the determination result to the UE through the AMM; for the UTDOA case, there is no such step.
  • the LMF needs to communicate with the AMM; that is, the LMF needs to inform the AMM whether it needs to assist in acquiring TA and/or AOA.
  • E-CID Enhanced Cell ID method
  • the LMF needs to communicate with the AMM or UPE; that is, the WLAN positioning or Bluetooth positioning or sensor-based positioning measurement configuration needs to be sent to the UE through the AMM or UPE.
  • the LMF needs to communicate with the UPE; that is, network-assisted GNSS positioning, OTDOA or UTDOA positioning, E-CID, WLAN positioning, Bluetooth positioning, sensor-based positioning configuration information or assistance information needs to be sent to the UE through the UPE .
  • Step 303a initiate a positioning measurement configuration (SUPL or WLAN or Bluetooth or sensor or AGNSS) to the UPF;
  • Step 303b initiate a positioning measurement configuration (OTDOA or UTDOA) to the CGM;
  • Step 303c initiate a positioning measurement configuration (E-CID or WLAN or Bluetooth or sensor or AGNSS) to the AMM.
  • E-CID positioning measurement configuration
  • WLAN Wireless Fidelity
  • Bluetooth Wireless Fidelity
  • AGNSS a positioning measurement configuration
  • the LMF sends configuration information to the relevant access network network function based on the determined positioning method combination scheme.
  • the configuration information may include requirements such as positioning accuracy, positioning period, and positioning duration.
  • Steps 303a, 303b, and 303c can be initiated at the same time as needed, that is, the LMF communicates with the AMM, CGM, and UPE at the same time.
  • Step 304 The UE or the LMF performs location estimation based on the measurement result.
  • Step 305 reporting the measurement result.
  • Step 306 perform position estimation.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • MBMS Multimedia Broadcast/Multicast Service
  • the service request is a multicast broadcast service request
  • the core network network function module is BM-SC;
  • the access network network function module is one of the following modules or a combination thereof: RSM, CGM, AMM.
  • the BM-SC sends a message carrying at least the multicast or broadcast QoS requirements to the RSM;
  • the BM-SC sends a message to the CGM carrying at least a multicast or broadcast area requirement, and/or a multicast or broadcast frequency resource requirement.
  • FIG. 4 is a schematic diagram of the implementation process of the multicast broadcast service. As shown in the figure, it may include:
  • Step 1 The content provider sends a multicast broadcast service request to the multicast broadcast control node BM-SC.
  • the content provider sends a multicast broadcast service request to the multicast broadcast control node multicast broadcast control function (Broadcast/Multicast-Control Function, BM-SC).
  • the request message can carry multicast or broadcast area requirements, multiple Broadcast or broadcast QoS requirements (such as reliability requirements, transmission rate requirements, transmission delay requirements, etc.), multicast or broadcast frequency resource requirements and other information.
  • the BM-SC Based on the multicast broadcast service request message, the BM-SC sends a multicast or broadcast service request message to the network functions of the access network, and receives response messages from the network functions of the access network.
  • Steps 2a-2b the message sent by BM-SC to RSM carries at least multicast or broadcast QoS requirements (such as reliability requirements, transmission rate requirements, transmission delay requirements, etc.), and RSM determines whether to enable mixing for multicast or broadcast based on this.
  • QoS requirements such as reliability requirements, transmission rate requirements, transmission delay requirements, etc.
  • RSM determines whether to enable mixing for multicast or broadcast based on this.
  • Automatic repeat request Hybrid automatic repeat request, HARQ
  • HARQ Hybrid automatic repeat request
  • the message sent by the BM-SC to the CGM carries at least the multicast or broadcast area requirements (eg, the geographic location where the multicast or broadcast service is to be received, the mobility of the UE), and the multicast or broadcast frequency resources. It is required that the CGM determines, based on the content of the received message, the cells, frequency points or beams (beams) or bandwidth parts (Bandwidth part, BWP) or periodic and other time-frequency resources participating in this multicast or broadcast, and each cell is used for this Secondary multicast or broadcast group (Group) wireless network temporary identifier (Radio Network Temporary Identifier, RNTI).
  • the CGM determines, based on the content of the received message, the cells, frequency points or beams (beams) or bandwidth parts (Bandwidth part, BWP) or periodic and other time-frequency resources participating in this multicast or broadcast, and each cell is used for this Secondary multicast or broadcast group (Group) wireless network temporary identifier (Radio Network Temporary Identifier, RNTI
  • Steps 2a-2b and steps 3a-3b can be performed simultaneously as required.
  • Step 4 The BM-SC requests the AMM to send the final multicast or broadcast configuration information to the UE.
  • Step 5 The BM-SC requests the AMM to send the final multicast or broadcast configuration information to the content provider.
  • Step 6 The AMM sends the final multicast or broadcast configuration information to the UE.
  • Step 7-Step 10 MBMS data transmission.
  • the embodiments of the present disclosure provide a wireless network architecture, various network functions, and related processes of their operation.
  • connection between the base station and the core network elements is opened up through the service interface, so that the base station can directly communicate with the relevant core network nodes, avoiding unnecessary signaling interaction processes, thereby reducing the communication delay.
  • structure of the base station is further modularized, so that the original serial execution process in the base station can be executed in parallel, which further reduces the data processing delay.
  • embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.
  • modules, units, sub-modules, sub-units, etc. can be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processing (DSP), digital signal processing equipment ( DSP Device, DSPD), Programmable Logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, for in other electronic units or combinations thereof that perform the functions described in this disclosure.
  • ASIC Application Specific Integrated Circuits
  • DSP Digital Signal Processing
  • DSP Device digital signal processing equipment
  • PLD Programmable Logic Device
  • Field-Programmable Gate Array Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array

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Abstract

一种接入网、通信系统及服务提供方法、存储介质，接入网是基于服务化架构的，包括至少一个接入网网络功能模块的接入网，其中：各接入网网络功能模块与各核心网网络功能模块通过服务化接口互联，核心网是基于服务化架构的，包括至少一个核心网网络功能模块的核心网；接入网网络功能模块，用于在被核心网网络功能模块根据服务需求确定后，与相应的一个或多个核心网网络功能模块进行信息交互。通信系统包括：基于服务化架构的核心网，以及接入网，核心网网络功能模块，用于与根据服务需求确定的一个或多个接入网网络功能模块进行信息交互。

Description

一种接入网、通信系统及服务提供方法、存储介质
相关申请的交叉引用
本公开主张在2020年12月14日在中国提交的中国专利申请号No.202011471634.7的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及无线通信技术领域，特别涉及一种接入网、通信系统及服务提供方法、存储介质。
背景技术
传统网元之间有着固定的通信接口和通信路径，导致通信流程复杂。考虑到数据转发每经过一个网元，传输时延大概增加10-20ms，因此复杂通信流程导致的传输时延将不能满足垂直行业对定位的严苛时延要求。
对于基站与核心网之间的通信，采用相关技术中的通信架构将导致通信流程复杂、时延较大。
发明内容
本公开提供了一种接入网、通信系统及服务提供方法、存储介质，用以减少提供服务过程中的时延。
本公开提供以下技术方案：
一种接入网，包括：
接入网包括至少一个接入网网络功能模块，其中：
接入网网络功能模块与核心网网络功能模块通过服务化接口互联，所述核心网包括至少一个核心网网络功能模块；
接入网网络功能模块与相应的一个或多个核心网网络功能模块进行信息交互；
所述接入网和核心网是基于服务化架构的。
实施例中，所述接入网网络功能模块之间通过服务化接口互联。
实施中，接入网网络功能模块进一步用于在被核心网网络功能模块根据服务需求确定后，与一个或多个核心网网络功能模块进行信息交互。
实施中，所述服务需求为以下服务之一或者其组合：
定位精度要求服务、定位周期服务、定位时长服务、定位方法服务、多播或广播范围要求服务、多播或广播可靠性服务、多播或广播频率资源要求服务、数据传输速率要求服务、数据传输可靠性要求服务、数据传输时延要求服务。
实施中，接入网网络功能模块为以下功能模块之一或者其组合：
连接与移动性管理功能模块、小区组管理功能模块、会话管理功能模块、小区组执行实体模块、会话执行实体模块、用户面执行实体模块。
实施中，连接与移动性管理功能模块，用于将配置信息发送给UE，提供UE小区级位置估计，提供测量结果；
小区组管理功能模块包括：接入点组管理单元和/或时频资源分配管理单元，其中：
接入点组管理单元，用于根据用户确定为UE服务的一组接入点，和/或，根据区域确定UE服务的一组接入点；
时频资源分配管理单元，用于规定不同信道质量和/或不同业务服务质量QoS要求时对应的资源分配规则；
会话管理功能模块，用于生成与承载相关的配置信息；
小区组执行实体模块，用于执行小区组管理功能下发的控制指示；
会话执行实体模块，用于执行会话管理功能下发的控制指示；
用户面执行实体模块，用于完成用户面数据传输。
一种核心网，包括：
核心网网络功能模块与接入网网络功能模块通过服务化接口互联；
核心网网络功能模块，用于与一个或多个接入网网络功能模块进行信息交互；
所述核心网和接入网是基于服务化架构的。
实施中，核心网网络功能模块进一步用于与根据服务需求确定的一个或多个接入网网络功能模块进行信息交互。
实施中，所述服务需求为以下服务之一或者其组合：
定位精度要求服务、定位周期服务、定位时长服务、定位方法服务、多播或广播范围要求服务、多播或广播可靠性服务、多播或广播频率资源要求服务、数据传输速率要求服务、数据传输可靠性要求服务、数据传输时延要求服务。
一种通信系统，包括：所述核心网，以及所述接入网。
实施中，所述服务需求为以下服务之一或者其组合：
定位精度要求服务、定位周期服务、定位时长服务、定位方法服务、多播或广播范围要求服务、多播或广播可靠性服务、多播或广播频率资源要求服务、数据传输速率要求服务、数据传输可靠性要求服务、数据传输时延要求服务。
一种上述的通信系统的服务提供方法，包括：
接收服务请求；
核心网网络功能模块根据服务请求确定一个或多个接入网网络功能模块；或，接入网网络功能模块根据服务请求确定对应的提供服务需求的一个或多个接入网网络功能模块；
各接入网网络功能模块与各核心网网络功能模块根据服务需求进行信息交互，用以提供服务。
实施中，所述服务请求为定位服务请求；
核心网网络功能模块为LMF；
接入网网络功能模块为以下模块之一或者其组合：AMM、CGM、UPE。
实施中，如果定位方法为网络辅助的GNSS定位，LMF与AMM或UPE通信进行信息交互；
如果定位方法为OTDOA或UTDOA定位，LMF与CGM进行信息交互；
如果定位方法为增强小区ID方法，LMF与AMM通信进行信息交互；
如果定位方法为WLAN定位或蓝牙定位或基于传感器的定位，LMF与AMM或UPE进行信息交互；
如果定位方法为SUPL，LMF与UPE通信进行信息交互。
实施中，所述服务请求为多播广播业务请求；
核心网网络功能模块为BM-SC；
接入网网络功能模块为以下模块之一或者其组合：RSM、CGM、AMM。
实施中，BM-SC向RSM发送至少携带多播或广播QoS要求的消息；
BM-SC向CGM发送至少携带多播或广播区域要求，和/或多播或广播频率资源要求的消息。
一种计算机可读存储介质，所述计算机可读存储介质存储有执行上述服务提供方法的计算机程序。
本公开有益效果如下：
本公开实施例提供的技术方案中，接入网是基于服务化架构的，包括至少一个接入网网络功能模块，核心网也是基于服务化架构的包括至少一个核心网网络功能模块的核心网，在收到服务请求后，即可根据服务需求确定与提供服务有关的接入网网络功能模块以及核心网网络功能模块，而由于各接入网网络功能模块与各核心网网络功能模块通过服务化接口互联，各接入网网络功能模块与各核心网网络功能模块即可根据服务需求进行信息交互，用以提供服务。可见，由于通过服务化接口打通接入网与核心网功能模块之间的连接，使接入网可以直接与相关核心网节点通信，因而可以克服传统网元之间有固定的通信接口和通信路径，不是任意两个网元之间都会定义接口所带来的不足，能够避免不必要的信令交互流程，由此降低通信时延。
进一步的，由于将接入网结构进一步模块化，使得原本接入网内部可以串行执行的流程可以并行执行，进一步降低数据处理时延。
附图说明
此处所说明的附图用来提供对本公开的进一步理解，构成本公开的一部分，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1为本公开实施例中通信系统架构示意图；
图2为本公开实施例中通信系统的服务提供方法实施流程示意图；
图3为本公开实施例中定位实施流程示意图；
图4为本公开实施例中多播广播业务实施流程示意图。
具体实施方式
发明人在发明过程中注意到：
为了减少接口建立过程、减少接口协议设计工作，传统网元之间有固定的通信接口和通信路径，并不是任意两个网元之间都会定义接口，这将导致通信流程复杂、时延较大。
以定位流程为例，5G新空口(New Radio，NR)节点(NR NodeB，gNB)与定位管理功能(Location Management Function，LMF)之间没有直接接口，需要通过接入及移动性管理功能(Access and Mobility Management Function，AMF)中转，导致位置估计获取时延较长。
以位置服务(LoCation Services，LCS)客户端发起目标用户设备(User Equipment，UE)定位请求为例，UE定位请求消息要经过AMF到达LMF，LMF需经AMF与gNB协商测量相关配置，LMF再将配置信息经AMF、gNB转发给UE进行测量，UE将测量结果经gNB、AMF上报LMF，LMF计算后再将位置估计返回给LCS客户端。
传统网元之间有着固定的通信接口和通信路径，导致通信流程复杂。虽然核心网已经通过服务化设计简化了核心网内部的交互流程，但基站与核心网网元之间的交互还是要通过AMF，相关信息由AMF转发给其他核心网网元、或者其他核心网网元仍需通过AMF与基站通信。
考虑到数据转发每经过一个网元，传输时延大概增加10-20ms，因此复杂通信流程导致的传输时延将不能满足垂直行业对定位的严苛时延要求。如，车联网和智能工厂等垂直行业要求定位获取时延小于500ms，这里定位获取时延除了通信流程导致的时延，还包括必不可少的测量时间开销、以及位置计算时间开销。
基于此，为了降低基站与核心网网元之间的通信时延，本公开将提供的通信方案中，通过服务化接口打通基站与核心网网元之间的连接，使基站可以直接与相关核心网节点通信，避免不必要的信令交互流程，由此降低通信时延。除此之外，将基站结构进一步模块化，使得原本基站内部顺序执行的流程可以并行执行，进一步降低数据处理时延。
下面结合附图对本公开的具体实施方式进行说明。
在说明过程中，将会涉及接入网与核心网侧的实施说明，还会给出二者配合实施的实例以更好地理解本公开实施例中给出的方案的实施。这样的说明方式并不意味着二者必须配合实施、或者必须单独实施，实际上，当接入网与核心网侧分开实施时，其也各自解决自身一侧的问题，而二者结合使用时，会获得更好的技术效果。
图1为通信系统架构示意图，图中是分别以控制面(Control Plane，CP)功能、用户面(User Plane，UP)功能示意接入网网络功能模块，其中，Uu表示UE与接入网之间的空中接口，可包括控制面接口和用户面接口，N Uu-CP可以理解为UE与接入网之间的控制面接口，N Uu-UP可以理解为UE与接入网之间的用户面接口，以核心网控制面功能、核心网用户面功能示意核心网网络功能模块，如图所示，包括：基于服务化架构的包括至少一个核心网网络功能模块的核心网，以及接入网，其中：
核心网网络功能模块，用于与根据服务需求确定的一个或多个接入网网络功能模块进行信息交互。
接入网包括至少一个接入网网络功能模块，其中：
接入网网络功能模块与核心网网络功能模块通过服务化接口互联，所述核心网包括至少一个核心网网络功能模块；
接入网网络功能模块与相应的一个或多个核心网网络功能模块进行信息交互；
所述接入网和核心网是基于服务化架构的。
具体的，接入网是基于服务化架构的，包括至少一个接入网网络功能模块，其中：
各接入网网络功能模块与各核心网网络功能模块通过服务化接口互联，所述核心网是基于服务化架构的包括至少一个核心网网络功能模块的核心网；
接入网网络功能模块，用于在核心网根据服务需求确定后，与相应的一个或多个核心网网络功能模块进行信息交互。
具体的，是将接入网结构进一步模块化，使得原本接入网内部顺序执行的流程可以并行执行，进一步降低数据处理时延。
实施例中，接入网网络功能模块之间通过服务化接口互联。
下面对基于图1所示的无线网络架构的通信网络实施进行说明。
核心网网络功能可同时与至少两个接入网网络功能通信，接入网网络功能的选取由核心网网络功能基于服务需求确定。
实施中，所述服务需求为以下服务之一或者其组合：
定位精度要求服务、定位周期服务、定位时长服务、定位方法服务、多播或广播范围要求服务、多播或广播可靠性服务、多播或广播频率资源要求服务、数据传输速率要求服务、数据传输可靠性要求服务、数据传输时延要求服务。
具体的，服务需求可以为如下之一或组合：定位精度要求、定位周期、定位时长、定位方法、多播或广播范围要求、多播或广播可靠性、多播或广播频率资源要求、数据传输速率要求、数据传输可靠性要求、数据传输时延要求等。
实施中，接入网网络功能模块为以下功能模块之一或者其组合：
连接与移动性管理功能模块、小区组管理功能模块、会话管理功能模块、小区组执行实体模块、会话执行实体模块、用户面执行实体模块。
具体的，接入网网络功能包括如下至少之一：连接与移动性管理(Access and Mobility Management，AMM)，小区组管理(Cell Group Management，CGM)，会话管理(Radio Session Management，RSM)，小区组执行实体(Cell Group Entity，CGE)，会话执行实体(Radio Session Entity，RSE)，用户面执行实体(User Plane Entity，UPE)。下面进行具体说明：
1、连接与移动性管理功能模块，用于将配置信息发送给UE，提供UE小区级位置估计，提供测量结果；
具体的，连接与移动性管理功能包括：将配置信息通过无线资源控制(Radio Resource Control，RRC)消息发送给UE，提供UE小区级位置估计，提供到达角(angle-Of-Arrival，AOA)、时间提前量(Timing Advance，TA)等测量结果。
2、小区组管理功能模块包括：接入点组管理单元和/或时频资源分配管理单元，其中：
接入点组管理单元，用于根据用户确定为UE服务的一组接入点，和/或，根据区域确定UE服务的一组接入点；
时频资源分配管理单元，用于规定不同信道质量和/或不同业务服务质量QoS要求时对应的资源分配规则；
具体的，小区组管理功能可以包括：接入点组管理，时频资源分配管理。
接入点组管理：确定将哪些接入点归为一组为某个UE服务(以用户为中心网络)、或者确定将哪些接入点归为一组为某区域内的UE服务(多播广播、系统信息广播等)。
时频资源分配管理：规定不同信道质量和/或不同业务服务质量(Quality of Service，QoS)要求时对应的资源分配规则。如，对于承载1上的数据，需要在信道质量高于门限1的无线资源上传输，且分配的资源不得少于x比特。
3、会话管理功能模块，用于生成与承载相关的配置信息；
具体的，会话管理功能用于生成承载相关配置信息，包括：QoS流(QoS Flow)与无线承载之间的映射，分组数据聚合协议(Packet Data Convergence Protocol，PDCP)、无线链路控制(Radio Link Control，RLC)、或媒体接入控制(Media Access Control，MAC)等配置参数。
4、小区组执行实体模块，用于执行小区组管理功能下发的控制指示；
具体的，小区组执行实体执行小区组管理功能下发的控制指示。
5、会话执行实体模块，用于执行会话管理功能下发的控制指示；
具体的，会话执行实体执行会话管理功能下发的控制指示。
6、用户面执行实体模块，用于完成用户面数据传输；
具体的，用户面执行实体完成用户面数据传输。
下面对通信系统提供服务的实施进行说明。
图2为通信系统的服务提供方法实施流程示意图，如图所示，可以包括：
步骤201、接收服务请求；
步骤202、核心网网络功能模块根据服务请求确定一个或多个接入网网络功能模块；或，接入网网络功能模块根据服务请求确定对应的提供服务需求的一个或多个接入网网络功能模块；
步骤203、各接入网网络功能模块与各核心网网络功能模块根据服务需求进行信息交互，用以提供服务。
下面分别以定位服务以及和多播广播业务服务为例进行说明。
实施例一
本例中将以混合定位流程进行说明。
混合定位，即多种定位技术的组合，用以提供更高精度的定位。可用的定位方法包括：网络辅助的全球导航卫星系统(Global Navigation Satellite System，GNSS)方法、观察到达时间差测量(Observed Time Difference Of Arrival，OTDOA)定位、增强的基于小区ID的定位方法(Enhanced Cell-ID positioning method，E-CID)、上行到达时间差(Uplink Time Difference of Arrival，UTDOA)定位、无线局域网(Wireless Local Area Network，WLAN)定位、蓝牙定位、基于传感器的定位、安全用户面定位(Secure User Plane Location，SUPL)等。
实施中，所述服务请求为定位服务请求；
核心网网络功能模块为LMF；
接入网网络功能模块为以下模块之一或者其组合：AMM、CGM、UPE。
具体实施中，可以如下：
如果定位方法为网络辅助的GNSS定位，LMF与AMM或UPE通信进行信息交互；
如果定位方法为OTDOA或UTDOA定位，LMF与CGM进行信息交互；
如果定位方法为增强小区ID方法，LMF与AMM通信进行信息交互；
如果定位方法为WLAN定位或蓝牙定位或基于传感器的定位，LMF与AMM或UPE进行信息交互；
如果定位方法为SUPL，LMF与UPE通信进行信息交互。
图3为定位实施流程示意图，如图所示，可以包括：
步骤301、接收定位服务请求。
定位管理功能(Location Management Function，LMF)从核心网网络功能(如，接入与移动性管理功能，AMF)、或定位服务客户端、或接入网网络功能、或UE接收定位请求，请求消息中携带定位精度要求，还可以携带UE 当前所处小区ID、获得定位时间要求、采用定位方法建议、定位周期建议等信息；
步骤302、LMF基于收到的信息，确定采用的定位方法组合方案。
1)采用的定位方法不同，LMF需要通信的接入网网络功能也不同：
如果为网络辅助的GNSS定位，LMF需要与AMM或UPE通信；即，需要通过AMM或UPE将网络辅助的GNSS辅助信息发给UE。
如果为OTDOA或UTDOA定位，LMF需要与CGM通信；即，由CGM确定参与此次OTDOA或UTDOA定位的传输点或小区。对于OTDOA情况，CGM需要将确定结果通过AMM发给UE；对于UTDOA情况，则无此步骤。
如果为增强小区ID方法(E-CID)，LMF需要与AMM通信；即，LMF需要告知AMM其是否需要辅助获取TA和/或AOA。
如果为WLAN定位或蓝牙定位或基于传感器的定位，LMF需要与AMM或UPE通信；即，需要通过AMM或UPE将WLAN定位或蓝牙定位或基于传感器的定位测量配置发给UE。
如果为SUPL，LMF需要与UPE通信；即，需要通过UPE将网络辅助的GNSS定位、OTDOA或UTDOA定位、E-CID、WLAN定位、蓝牙定位、基于传感器的定位的配置信息或辅助信息发给UE。
2)定位精度、定位周期、定位时长等要求不同，确定的定位组合方案也不同。
步骤303a、向UPF发起定位测量配置(SUPL或WLAN或蓝牙或传感器或AGNSS)；
步骤303b、向CGM发起定位测量配置(OTDOA或UTDOA)；
步骤303c、向AMM发起定位测量配置(E-CID或WLAN或蓝牙或传感器或AGNSS)。
具体的，LMF基于确定的定位方法组合方案，向相关接入网网络功能发送配置信息。配置信息中可以包括定位精度、定位周期、定位时长等要求。根据需要步骤303a、步骤303b、步骤303c可同时发起，即LMF与AMM、CGM、UPE同时通信。
步骤304、UE或者LMF基于测量结果进行位置估计。
步骤305、进行测量结果上报。
步骤306、进行位置估计。
实施例二：
本例中，对多媒体广播/组播服务(Multimedia Broadcast/Multicast Service，MBMS)多播广播流程的实施进行说明。
实施中，所述服务请求为多播广播业务请求；
核心网网络功能模块为BM-SC；
接入网网络功能模块为以下模块之一或者其组合：RSM、CGM、AMM。
具体实施中，可以如下：
BM-SC向RSM发送至少携带多播或广播QoS要求的消息；
BM-SC向CGM发送至少携带多播或广播区域要求，和/或多播或广播频率资源要求的消息。
图4为多播广播业务实施流程示意图，如图所示，可以包括：
步骤1、内容提供商向多播广播控制节点BM-SC发送多播广播业务请求。
内容提供商(Content provider)向多播广播控制节点多播广播控制功能(Broadcast/Multicast-Control Function，BM-SC)发送多播广播业务请求，请求消息中可以携带多播或广播区域要求、多播或广播QoS要求(如可靠性要求、传输速率要求、传输时延要求等)、多播或广播频率资源要求等信息。
BM-SC基于多播广播业务请求消息，向接入网网络功能发送多播或广播业务请求消息，并接收这些接入网网络功能的响应消息。
步骤2a-2b、BM-SC向RSM发送的消息至少携带多播或广播QoS要求(如可靠性要求、传输速率要求、传输时延要求等)，RSM基于此确定是否为多播或广播开启混合自动重传请求(Hybrid automatic repeat request，HARQ)重传、是否开启数据包的重复发送、是否为多播或广播业务建立多个数据承载、是否需要通过多个RSE发送该多播或广播业务数据。
步骤3a-3b、BM-SC向CGM发送的消息中至少携带多播或广播区域要求(如，想要接收该多播或广播业务的地理位置、UE的移动性)、多播或广播频率资源要求，CGM基于接收到的消息内容，确定参与此次多播或广播的小区、频点或波束(beam)或部分带宽(Bandwidth part，BWP)或周期等时频 资源、每个小区用于此次多播或广播的组(Group)无线网络临时标识(Radio Network Temporary Identifier，RNTI)。
根据需要，步骤2a-2b和步骤3a-3b可以同时执行。
步骤4、BM-SC请求AMM将最终的多播或广播配置信息发给UE。
步骤5、BM-SC请求AMM将最终的多播或广播配置信息发给内容提供商。
步骤6、AMM将最终的多播或广播配置信息发给UE。
步骤7-步骤10、MBMS数据传输。
综上所述，本公开实施例中提供了无线网络架构及各网络功能，以及它们运行的相关流程。
方案中，通过服务化接口打通基站与核心网网元之间的连接，使基站可以直接与相关核心网节点通信，避免不必要的信令交互流程，由此降低通信时延。除此之外，将基站结构进一步模块化，使得原本基站内部串行执行的流程可以并行执行，进一步降低数据处理时延。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器 中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
可以理解的是，本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，模块、单元、子模块、子单元等可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processing，DSP)、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (16)

  1. 一种接入网，包括：
    接入网包括至少一个接入网网络功能模块，其中：
    接入网网络功能模块与核心网网络功能模块通过服务化接口互联，所述核心网包括至少一个核心网网络功能模块；
    接入网网络功能模块与相应的一个或多个核心网网络功能模块进行信息交互；
    所述接入网和核心网是基于服务化架构的。
  2. 如权利要求1所述的接入网，其中，所述接入网网络功能模块之间通过服务化接口互联。
  3. 如权利要求1所述的接入网，其中，接入网网络功能模块进一步用于在被核心网网络功能模块根据服务需求确定后，与一个或多个核心网网络功能模块进行信息交互。
  4. 如权利要求3所述的接入网，其中，所述服务需求为以下服务之一或者其组合：
    定位精度要求服务、定位周期服务、定位时长服务、定位方法服务、多播或广播范围要求服务、多播或广播可靠性服务、多播或广播频率资源要求服务、数据传输速率要求服务、数据传输可靠性要求服务、数据传输时延要求服务。
  5. 如权利要求1所述的接入网，其中，接入网网络功能模块为以下功能模块之一或者其组合：
    连接与移动性管理功能模块AMM、小区组管理功能模块CGM、会话管理功能模块RSM、小区组执行实体模块CGE、会话执行实体模块RSE、用户面执行实体模块UPE。
  6. 如权利要求5所述的接入网，其中，
    连接与移动性管理功能模块，用于将配置信息发送给用户设备UE，提供UE小区级位置估计，提供测量结果；
    小区组管理功能模块包括：接入点组管理单元和/或时频资源分配管理单 元，其中：
    接入点组管理单元，用于根据用户确定为UE服务的一组接入点，和/或，根据区域确定UE服务的一组接入点；
    时频资源分配管理单元，用于规定不同信道质量和/或不同业务服务质量QoS要求时对应的资源分配规则；
    会话管理功能模块，用于生成与承载相关的配置信息；
    小区组执行实体模块，用于执行小区组管理功能下发的控制指示；
    会话执行实体模块，用于执行会话管理功能下发的控制指示；
    用户面执行实体模块，用于完成用户面数据传输。
  7. 一种核心网，包括：
    核心网网络功能模块与接入网网络功能模块通过服务化接口互联；
    核心网网络功能模块，用于与一个或多个接入网网络功能模块进行信息交互；
    所述核心网和接入网是基于服务化架构的。
  8. 如权利要求7所述的核心网，其中，核心网网络功能模块进一步用于与根据服务需求确定的一个或多个接入网网络功能模块进行信息交互。
  9. 如权利要求7所述的核心网，其中，所述服务需求为以下服务之一或者其组合：
    定位精度要求服务、定位周期服务、定位时长服务、定位方法服务、多播或广播范围要求服务、多播或广播可靠性服务、多播或广播频率资源要求服务、数据传输速率要求服务、数据传输可靠性要求服务、数据传输时延要求服务。
  10. 一种通信系统，包括：如权利要求1至6任一所述的接入网，以及如权利要求7至9任一所述的核心网。
  11. 一种如权利要求10所述的通信系统的服务提供方法，包括：
    接收服务请求；
    核心网网络功能模块根据服务请求确定一个或多个接入网网络功能模块；或，接入网网络功能模块根据服务请求确定对应的提供服务需求的一个或多个接入网网络功能模块；
    各接入网网络功能模块与各核心网网络功能模块根据服务需求进行信息交互，用以提供服务。
  12. 如权利要求11所述的方法，其中，所述服务请求为定位服务请求；
    核心网网络功能模块为定位管理功能LMF；
    接入网网络功能模块为以下模块之一或者其组合：连接与移动性管理AMM、小区组管理CGM、用户面执行实体UPE。
  13. 如权利要求12所述的方法，其中，
    如果定位方法为网络辅助的全球导航卫星系统GNSS定位，LMF与AMM或UPE通信进行信息交互；
    如果定位方法为观察到达时间差测量OTDOA或上行到达时间差UTDOA定位，LMF与CGM进行信息交互；
    如果定位方法为增强小区标识ID方法，LMF与AMM通信进行信息交互；
    如果定位方法为无线局域网WLAN定位或蓝牙定位或基于传感器的定位，LMF与AMM或UPE进行信息交互；
    如果定位方法为安全用户面定位SUPL，LMF与UPE通信进行信息交互。
  14. 如权利要求11所述的方法，其中，所述服务请求为多播广播业务请求；
    核心网网络功能模块为多播广播控制功能BM-SC；
    接入网网络功能模块为以下模块之一或者其组合：RSM、CGM、AMM。
  15. 如权利要求14所述的方法，其中，
    BM-SC向RSM发送至少携带多播或广播QoS要求的消息；
    BM-SC向CGM发送至少携带多播或广播区域要求，和/或多播或广播频率资源要求的消息。
  16. 一种计算机可读存储介质，所述计算机可读存储介质存储有执行权利要求11至15任一所述方法的计算机程序。
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