WO2017071399A1 - 一种业务数据的传输方法、装置、控制设备及通信系统 - Google Patents

一种业务数据的传输方法、装置、控制设备及通信系统 Download PDF

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Publication number
WO2017071399A1
WO2017071399A1 PCT/CN2016/097522 CN2016097522W WO2017071399A1 WO 2017071399 A1 WO2017071399 A1 WO 2017071399A1 CN 2016097522 W CN2016097522 W CN 2016097522W WO 2017071399 A1 WO2017071399 A1 WO 2017071399A1
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WIPO (PCT)
Prior art keywords
address
data forwarding
forwarding device
data
base station
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Ceased
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PCT/CN2016/097522
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English (en)
French (fr)
Inventor
王丹
孙滔
刘超
陆璐
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China Mobile Communications Group Co Ltd
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China Mobile Communications Corp
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Publication of WO2017071399A1 publication Critical patent/WO2017071399A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • 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

Definitions

  • the present disclosure relates to the field of wireless communication technologies, and in particular, to a method, an apparatus, a control device, and a communication system for transmitting service data.
  • a plurality of network element devices such as a mobility management entity (MME), a Policy and Charging Rules Function Unit (PCRF), are included.
  • MME mobility management entity
  • PCRF Policy and Charging Rules Function Unit
  • the home subscriber network (HSS), the service gateway (SGW) and the packet data network gateway (PGW) implement functions such as mobility management, path selection, data forwarding, and charging policy.
  • the control plane signaling when the user initially attaches uses the Wireless Packet Service Tunnel Control Plane (GTP-C) protocol
  • the forwarding plane signaling uses the Wireless Packet Service Tunnel User Plane (GTP-U) protocol.
  • GTP-C Wireless Packet Service Tunnel Control Plane
  • GTP-U Wireless Packet Service Tunnel User Plane
  • the base station eNodeB
  • the base station sends a connection establishment request message to the MME.
  • the message includes but is not limited to: International Mobile Subscriber Identity (IMSI), service identity, and the like.
  • the MME selects an appropriate SGW and PGW according to the received network access selection (APN) and according to the address resolution of the domain name (DNS) server.
  • API network access selection
  • DNS domain name
  • a connection is established between the MME and the SGW, and the SGW and the PGW are sequentially established.
  • PGW assigns an IP address to the user.
  • the PGW and the PCRF network element are connected interactively.
  • the PGW provides the user's IP address, APN, bearer quality of service (QoS), etc. to the PCRF network element.
  • the PCRF network element sends the charging policy information and QoS information such as the network access aggregation maximum bit rate (APN-AMBR), the quality of service scale value (QCI), and the address resolution protocol (ARP) to the PGW.
  • APN-AMBR network access aggregation maximum bit rate
  • QCI quality of service scale value
  • ARP address resolution protocol
  • the PGW sends a message to the SGW, including but not limited to: a PGW address and a tunnel endpoint. Identification (TEID).
  • the SGW sends a message to the MME, including but not limited to: a PGW address and a TEID, an SGW address, and a TEID.
  • the MME sends a message to the eNodeB, including but not limited to: SGW address and TEID, and an IP address allocated to the UE.
  • the eNodeB delivers the IP address of the UE to the UE.
  • the eNodeB delivers the address and TEID of the eNodeB to the MME.
  • the MME delivers the address and TEID of the eNodeB to the SGW, and opens a data transmission link.
  • the UE performs uplink and downlink data transmission through the eNodeB, the SGW, and the PGW.
  • the UE can perform uplink and downlink data transmission with the Internet.
  • embodiments of the present disclosure provide a method, an apparatus, a control device, and a communication system for transmitting service data, which are capable of selecting a data forwarding device that satisfies a user attachment request, and directly selecting the data.
  • the forwarding device interacts with the base station, which reduces signaling interaction and saves signaling processing time.
  • a method for transmitting service data including:
  • the user attach request includes: a service identifier of the user equipment;
  • the step of selecting one data forwarding device from the plurality of data forwarding devices includes:
  • the method further includes:
  • the step of performing the transmission of the uplink and downlink service data between the network and the user equipment by the selected data forwarding device and the base station includes:
  • uplink and downlink service data is transmitted between the network and the user equipment.
  • the method further includes:
  • the step of transmitting uplink and downlink service data between the network and the user equipment according to the IP address includes:
  • the step of transmitting uplink and downlink service data between the network and the user equipment according to the IP address includes:
  • the data forwarding device and the base station When receiving the attach complete message fed back by the base station, the data forwarding device and the base station transmit uplink and downlink service data between the server and the user equipment according to the IP address.
  • the creating a session request includes: the IP address, a tunnel endpoint identifier of a control device, the charging policy, and the quality of service guarantee policy;
  • the creating a session response includes: a tunnel endpoint identifier of the data forwarding device;
  • the attachment receiving message includes: an address of the data forwarding device, a tunnel endpoint identifier of the data forwarding device, the IP address, a tunnel endpoint identifier of the control device, and the quality of service guarantee policy;
  • the attach complete message includes: an address of the base station and a tunnel endpoint identifier
  • the data forwarding signaling includes: an address of the base station and a tunnel endpoint identifier.
  • the creating a session request includes: the IP address, the base station
  • the attach and receive message includes: an address of the data forwarding device, the IP address, and the quality of service guarantee policy.
  • a device for transmitting service data including:
  • a receiving module configured to receive a user attach request sent by the base station
  • a selecting module configured to select one data forwarding device from the plurality of data forwarding devices according to the user attach request
  • the interaction module is configured to interact with the selected data forwarding device and the base station, and perform uplink and downlink service data transmission between the network and the user equipment.
  • the user attach request includes: a service identifier of the user equipment;
  • the selection module includes:
  • An obtaining unit configured to obtain a network connection address that is resolved by the domain name server according to the service identifier
  • a first selecting unit configured to select, according to the network connection address, a data forwarding device that matches the network connection address from the plurality of data forwarding devices.
  • the selecting module further includes:
  • a second selecting unit configured to select, from a plurality of data forwarding devices that match the network connection address, a data forwarding device closest to the user device or a data forwarding device with the least load.
  • the interaction module includes:
  • An allocating unit configured to select an IP address allocated to the user equipment from the selected IP address pool of the data forwarding device
  • a transmission unit configured to perform uplink and downlink service data transmission between the network and the user equipment according to the IP address.
  • the interaction module further includes:
  • a sending unit configured to send the IP address, the service identifier, and the user identifier information of the user equipment to the database;
  • the receiving unit is configured to obtain subscription data, a charging policy, and a service quality assurance policy of the user equipment from the database.
  • the transmission unit comprises:
  • a session requesting subunit configured to send a create session request to the data forwarding device
  • An attach request subunit configured to send an attach and receive message to the base station when receiving the create session response that is sent by the data forwarding device according to the create session request;
  • a forwarding subunit configured to send data forwarding signaling to the data forwarding device when receiving the attach complete message fed back by the base station, and transmitting, by the data forwarding device and the base station, according to the IP address Uplink and downlink service data between the server and the user equipment.
  • the transmission unit comprises:
  • a first sending subunit configured to send a create session request to the data forwarding device
  • a second sending subunit configured to send an attach and receive message to the base station
  • a first receiving subunit configured to receive a create session response that is sent by the data forwarding device according to the create session request
  • a second receiving subunit configured to: when the receiving the completion message fed back by the base station, the data forwarding device and the base station transmit uplink and downlink service data between the server and the user equipment according to the IP address .
  • the creating a session request includes: the IP address, a tunnel endpoint identifier of a control device, the charging policy, and the quality of service guarantee policy;
  • the creating a session response includes: a tunnel endpoint identifier of the data forwarding device;
  • the attachment receiving message includes: an address of the data forwarding device, a tunnel endpoint identifier of the data forwarding device, the IP address, a tunnel endpoint identifier of the control device, and the quality of service guarantee policy;
  • the attach complete message includes: an address of the base station and a tunnel endpoint identifier
  • the data forwarding signaling includes: an address of the base station and a tunnel endpoint identifier.
  • the creating a session request includes: the IP address, the base station
  • the attach and receive message includes: an address of the data forwarding device, the IP address, and the quality of service guarantee policy.
  • control device comprising the above-described transmission device for service data.
  • the method for transmitting service data in the embodiment of the present disclosure receives a user attach request sent by the base station, and selects a data forwarding device from the plurality of data forwarding devices according to the user attach request, and directly interacts with the base station through the selected data forwarding device. Thereby, the uplink and downlink service data transmission between the network and the user equipment is implemented. Therefore, the service data transmission method of the embodiment of the present disclosure reduces signaling interaction and saves signaling processing time.
  • FIG. 1 is a block diagram showing an EPC communication system in the related art
  • FIG. 2 is a block diagram showing an EPC communication system involved in a service data transmission method according to an embodiment of the present disclosure
  • FIG. 3 is a flowchart of a service data transmission method according to an embodiment of the present disclosure
  • FIG. 4 is a block diagram showing the structure of a service data transmission apparatus of at least some embodiments of the present disclosure
  • FIG. 5 is a block diagram showing the structure of a service data transmission apparatus according to at least some embodiments of the present disclosure
  • FIG. 6 is a schematic diagram showing an implementation flow of a service data transmission method using a GTP protocol according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram showing an implementation flow of an IP-based openflow protocol in a service data transmission method according to an embodiment of the present disclosure.
  • a service data transmission method is provided, which is applied to an EPC network after a control plane device is fused.
  • the EPC network architecture separates the control plane and the forwarding plane in the network element, and the control plane device re-converges to become a control device with overall network control capability, and uses general forwarding in the network as needed.
  • the device ie, the data forwarding device DGW shown in FIG. 2 simplifies network deployment, thereby implementing unified control of the forwarding plane device, thereby implementing faster control plane signaling processing, saving forwarding time, and reducing delay.
  • the method is applied to the control device shown in FIG. 2, the control device first receives a user attach request sent by the base station; and then, according to the user attach request, selects a data forwarding device from the plurality of data forwarding devices; and finally, The selected data forwarding device interacts with the base station to perform uplink and downlink service data transmission between the network and the user equipment. Therefore, in the method for transmitting service data of the embodiment of the present disclosure, the control device selects a data forwarding device that satisfies the user attachment request, and directly interacts with the selected data forwarding device and the base station, thereby reducing signaling interaction and saving signaling processing. time.
  • the method includes:
  • Step S31 Receive a user attach request sent by the base station.
  • the user attach request includes: a service identifier of the user equipment. It is to be understood that the specific information carried in the user attachment request is not limited thereto. For example, the IMSI of the user equipment may also be carried.
  • the user equipment needs to be initially attached before performing the actual service. Therefore, the user equipment sends a user attach request to the control device through the base station. Therefore, the user attach request received by the control device is sent by the user equipment forwarded by the base station to the base station.
  • Step S33 Select one number from multiple data forwarding devices according to the user attachment request. According to the forwarding device.
  • one control device can control multiple data forwarding devices, and multiple data forwarding devices are respectively connected to different networks, such as a local area network, a metropolitan area network, or a wide area network. Therefore, when a user equipment initiates a user attach request, the control device needs to know which network the user equipment needs to connect to. The network type of the connection is generally related to the service to be performed by the user equipment. Therefore, the control device selects an available data forwarding from the plurality of data forwarding devices according to the service identifier of the user equipment carried in the user attachment request. device.
  • step S33 includes:
  • a data that is closest to the user equipment may be further selected from a plurality of data forwarding devices that match the network connection address. Forwarding device or a data-loading device with the least load.
  • Step S35 Perform interaction with the selected data forwarding device and the base station, and perform uplink and downlink service data transmission between the network and the user equipment.
  • An address pool is configured on the control device in the EPC network architecture, and the control device is responsible for allocating the IP address of the user equipment. Therefore, after the data forwarding device that meets the service requirements of the user equipment is selected, the control device selects one of the IP address pools corresponding to the selected data forwarding device to be assigned to the user equipment, and then allocates the user equipment according to the user equipment.
  • the IP address is used to transmit uplink and downlink service data between the network and the user equipment.
  • the base station needs to know the quality of service guarantee policy corresponding to the user equipment, and the data forwarding device needs to know the charging policy and the service quality assurance policy. Therefore, after the IP address is assigned to the user equipment, the IP address, the service identifier, and the IMSI of the user equipment are also sent to the database.
  • the database can be used to search for the subscription data, the charging policy, and the service quality assurance policy corresponding to the user equipment, and deliver the information to the control device.
  • the control device After the control device obtains the subscription information, the charging policy, and the service quality assurance policy of the user equipment, the control device saves the subscription information, and sends the charging policy and the service quality assurance policy to the data forwarding device to deliver the service quality assurance policy.
  • the base station is configured to enable the data forwarding device to perform the charging policy, perform the traffic statistics, the duration statistics, and report the measurement records to the control device according to the charging policy.
  • the fee measurement information is collected, and the CDR is generated and then reported to the corresponding network element.
  • the control device may send the charging policy and the QoS policy as the carrying information of the corresponding signaling to the data forwarding device in the process of creating a session with the data forwarding device, and in the process of attaching to the base station, The service quality assurance policy is sent to the base station as the carrying information of the corresponding signaling.
  • the protocol between the control device and the data forwarding device may adopt a general wireless packet service tunnel (GTP) protocol, or an IP-based openflow protocol.
  • GTP general wireless packet service tunnel
  • the step of transmitting uplink and downlink service data between the network and the user equipment according to the IP address includes:
  • the creating a session request includes: the IP address, a tunnel endpoint identifier of the control device, the charging policy, and the quality of service guarantee policy;
  • the creating a session response includes: a tunnel endpoint of the data forwarding device
  • the identifier includes: an address of the data forwarding device, a tunnel endpoint identifier of the data forwarding device, the IP address, and the control device
  • the attach complete message includes: an address of the base station and a tunnel end identifier; and the data forwarding signaling includes: an address of the base station and a tunnel end identifier.
  • the first device needs to carry the TEID of the first device, so that the second device can reply to the first device according to the TEID of the first device, of course, the first device can send the signaling information to the second device.
  • the second device replies with the information, it also needs to carry the TEID of the second device. Therefore, in the foregoing process, any network element carries a corresponding TED when transmitting corresponding signaling to another network element.
  • the service data transmission method in the embodiment of the present disclosure mainly involves only two network elements, namely the control device and the data forwarding device, and the TEID of the data forwarding device. And the address information only needs to notify the control device, corresponding to the flow in the prior art, the PGW will pass its own TEID and address to the SGW. The SGW shall forward its own TEID and address, the TEID and address of the PGW to the MME. Therefore, the service data transmission method of the embodiment of the present invention involves fewer network elements, and greatly reduces signaling transmission and reduces network load.
  • the step of transmitting uplink and downlink service data between the network and the user equipment according to the IP address includes:
  • the data forwarding device and the base station When receiving the attach complete message fed back by the base station, the data forwarding device and the base station transmit uplink and downlink service data between the server and the user equipment according to the IP address.
  • the creating a session request includes: the IP address, an address of the base station, and the
  • the attach and receive message includes: an address of the data forwarding device, the IP address, and the quality of service guarantee policy.
  • the IP-based openflow protocol does not have a tunnel packet mechanism.
  • the related signaling information involved in the foregoing process does not need to carry the TEID of the sender network element.
  • the control device knows the address of the base station. And the address of the data forwarding device, and request to create a session, that is, the control device informs the data forwarding device of the address of the base station; requesting attachment is control The device informs the base station of the address of the data forwarding device; finally, the uplink and downlink data transmission link is opened, that is, the base station knows the address of the data forwarding device, and the data forwarding device knows the address of the base station.
  • the step of requesting the control device to create a session to the data forwarding device and the control device requesting the attachment to the base station can be performed simultaneously, and when the base station informs the control device that the attachment is successful, the control device is no longer required to notify the address of the base station to the data forwarding. device.
  • the implementation method of the service data transmission method in the embodiment of the present invention is as shown in FIG. 6 in the EPC network architecture after the control plane device is merged. :
  • the user equipment sends an attach request to the control device by using a base station (eNodeB), where the message includes, but is not limited to, an IMSI, a service identifier, and the like.
  • eNodeB base station
  • the controller filters out the available data forwarding device (DGW) according to the service identifier and the address resolution of the domain name server, and the controller selects an appropriate DGW for the UE according to the load condition of the DGW, and allocates a corresponding IP address.
  • DGW data forwarding device
  • the Controller provides a UE with a UE IP address, a service identifier, an IMSI, and the like to request data from the database.
  • the database sends information to the controller, including but not limited to: subscription data, a charging policy, and a quality of service (QoS) protection policy;
  • QoS quality of service
  • the controller sends a Create session request to the DGW, where the signaling includes, but is not limited to, a UE IP address, a Controller TEID, a QoS information, a charging policy, and the like.
  • the DGW sends a Create Session Response to the Controller, where the signaling includes, but is not limited to, a DGW TEID, and the like.
  • the controller sends an attach request to the eNodeB.
  • the signaling includes, but is not limited to, an address of the DGW, a DGW TEID, a UE IP address, a controller TEID, and QoS information.
  • the eNodeB sends an attach complete message to the controller, where the signaling includes, but is not limited to, an eNodeB TEID, an address of the eNodeB, and the like.
  • the controller sends signaling to the DGW, where the signaling includes, but is not limited to, an eNodeB TEID, an address of the eNodeB, and the like.
  • the eNodeB will receive the IP address of the UE, the address of the eNodeB, and the TEID, DGW. The address and TEID are sent to the UE. The UE performs uplink and downlink data transmission with the Internet through the eNodeB and the DGW.
  • the implementation method of the service data transmission method in the embodiment of the present invention is as shown in FIG. 7 in the EPC network architecture after the control plane device is merged:
  • the user equipment sends an attach request to the controller through the eNodeB.
  • the message includes but is not limited to an IMSI, a service identifier, etc.
  • the controller filters out the available DGW according to the service identifier and the address resolution of the domain name server, and the controller selects an appropriate DGW for the UE according to the load condition of the DGW, and allocates a corresponding IP address.
  • the Controller provides a UE IP address, a service identifier, an IMSI, and the like to the database to request data.
  • the database sends information to the controller, including but not limited to: subscription data, a charging policy, and a QoS guarantee policy.
  • the Controller sends a Create session request to the DGW.
  • the signaling includes but is not limited to: UE IP address, eNodeB address, QoS information, and charging information.
  • the DGW sends a Create session response to the Controller.
  • the Controller sends an Attach accept to the eNodeB.
  • the signaling includes but is not limited to: an address of the DGW, a UE IP address, QoS information, and the like;
  • the eNodeB sends an Attach complete message to the controller.
  • the eNodeB sends the received IP address of the UE, the address of the eNodeB, and the address of the DGW to the UE.
  • the UE performs uplink and downlink data transmission with the Internet through the eNodeB and the DGW.
  • a service data transmission apparatus is further provided. As shown in FIG. 4, the apparatus 400 includes:
  • the receiving module 401 is configured to receive a user attach request sent by the base station;
  • the selecting module 403 is configured to select one data forwarding device from the plurality of data forwarding devices according to the user attach request;
  • the interaction module 405 is configured to interact with the selected data forwarding device and the base station, and perform uplink and downlink service data transmission between the network and the user equipment.
  • the user attach request includes: a service identifier of the user equipment;
  • the selection module 403 includes:
  • the obtaining unit 4031 is configured to obtain a network connection address that is resolved by the domain name server according to the service identifier.
  • the first selecting unit 4032 is configured to select, according to the network connection address, a data forwarding device that matches the network connection address from the plurality of data forwarding devices.
  • the selecting module 403 further includes:
  • the second selecting unit 4033 is configured to select, from among a plurality of data forwarding devices that match the network connection address, a data forwarding device closest to the user equipment or a data forwarding device with the least load.
  • the interaction module 405 includes:
  • the allocating unit 4051 is configured to select an IP address allocated to the user equipment from the selected IP address pool of the data forwarding device;
  • the transmitting unit 4052 is configured to perform uplink and downlink service data transmission between the network and the user equipment according to the IP address.
  • the interaction module 405 further includes:
  • the sending unit 4053 is configured to send the IP address, the service identifier, and the user identifier information of the user equipment to the database;
  • the receiving unit 4054 is configured to obtain the subscription data, the charging policy, and the service quality assurance policy of the user equipment from the database.
  • the transmitting unit 4052 includes:
  • a session requesting sub-unit 40521, configured to send a create session request to the data forwarding device
  • the attach request sub-unit 40522 is configured to send an attach and receive message to the base station when receiving the create session response fed back by the data forwarding device according to the create session request;
  • the forwarding subunit 40523 is configured to: when receiving the attach complete message fed back by the base station, send data forwarding signaling to the data forwarding device, and the data forwarding device and the base station transmit according to the IP address The uplink and downlink service data between the server and the user equipment.
  • the creating a session request includes: the IP address, a tunnel endpoint identifier of a control device, the charging policy, and the quality of service guarantee policy;
  • the creating a session response includes: a tunnel endpoint identifier of the data forwarding device;
  • the attachment receiving message includes: an address of the data forwarding device, a tunnel endpoint identifier of the data forwarding device, the IP address, a tunnel endpoint identifier of the control device, and the quality of service guarantee policy;
  • the attach complete message includes: an address of the base station and a tunnel endpoint identifier
  • the data forwarding signaling includes: an address of the base station and a tunnel endpoint identifier.
  • a service data transmission apparatus is further provided. As shown in FIG. 5, the apparatus 400 includes:
  • the receiving module 401 is configured to receive a user attach request sent by the base station;
  • the selecting module 403 is configured to select one data forwarding device from the plurality of data forwarding devices according to the user attach request;
  • the interaction module 405 is configured to interact with the selected data forwarding device and the base station, and perform uplink and downlink service data transmission between the network and the user equipment.
  • the user attach request includes: a service identifier of the user equipment;
  • the selection module 403 includes:
  • the obtaining unit 4031 is configured to obtain a network connection address that is resolved by the domain name server according to the service identifier.
  • the selecting unit 4032 is configured to select, according to the network connection address, a data forwarding device that matches the network connection address from the plurality of data forwarding devices.
  • the selecting module 403 further includes:
  • the second selecting unit 4033 is configured to select, from among a plurality of data forwarding devices that match the network connection address, a data forwarding device closest to the user equipment or a data forwarding device with the least load.
  • the interaction module 405 includes:
  • the allocating unit 4051 is configured to select an IP address allocated to the user equipment from the selected IP address pool of the data forwarding device;
  • the transmitting unit 4052 is configured to perform uplink and downlink service data transmission between the network and the user equipment according to the IP address.
  • the interaction module 405 further includes:
  • the sending unit 4053 is configured to send the IP address, the service identifier, and the user identifier information of the user equipment to the database;
  • the receiving unit 4054 is configured to obtain the subscription data, the charging policy, and the service quality assurance policy of the user equipment from the database.
  • the transmitting unit 4052 includes:
  • a second sending subunit 40525 configured to send an attach and receive message to the base station
  • a first receiving sub-unit 40526, configured to receive a create session response that is sent by the data forwarding device according to the create session request
  • a second receiving sub-unit 40527 configured to: when receiving the attach complete message fed back by the base station, the data forwarding device and the base station transmit an uplink and downlink service between the server and the user equipment according to the IP address data.
  • the creating a session request includes: the IP address, an address of the base station, the charging policy, and the quality of service guarantee policy;
  • the attach and receive message includes: an address of the data forwarding device, the IP address, and the quality of service guarantee policy.
  • control device comprising the above described service data transmission device.
  • a communication system comprising the control device described above.
  • the communication system can be, for example, a packet core network (EPC) communication system.
  • EPC packet core network

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Abstract

本公开提供了一种业务数据的传输方法、装置、控制设备及通信系统，该方法包括：接收基站发送的用户附着请求；根据用户附着请求，从多个数据转发设备中选择一个数据转发设备；与选择的数据转发设备和基站交互，在网络与用户设备间进行上下行业务数据的传输。

Description

一种业务数据的传输方法、装置、控制设备及通信系统
相关申请的交叉引用
本申请主张在2015年10月29日在中国提交的中国专利申请号No.201510717274.7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，尤其涉及一种业务数据的传输方法、装置、控制设备及通信系统。
背景技术
如图1所示，在目前长期演进(LTE)/分组核心网(EPC)架构中，包含有多种网元设备，如移动管理实体(MME)，策略与计费规则功能单元(PCRF)，归属签约用户服务器(HSS)，服务网关(SGW)及分组数据网网关(PGW)等，分别实现移动性管理、路径选择、数据转发，计费策略等功能。用户初始附着时的控制面信令使用无线分组业务隧道控制面(GTP-C)协议，转发面信令使用无线分组业务隧道用户面(GTP-U)协议。其中，用户设备(UE)建立连接的主要流程如下：
1、当UE接入网络时，基站(eNodeB)向MME发送建立连接请求消息。该消息包含但不限于：国际移动用户识别码(IMSI)，业务标识等。
2、MME根据接收到的网络接入选择(APN)，并根据域名(DNS)服务器的地址解析，选择合适的SGW与PGW)。
3、MME与SGW之间，SGW与PGW之间依次建立连接。
4、PGW为用户分配IP地址。
5、PGW与PCRF网元进行交互连接。PGW向PCRF网元提供用户的IP地址、APN、承载服务质量(QoS)等。PCRF网元向PGW下发网络接入聚合最大比特率(APN-AMBR)、服务质量标度值(QCI)、地址解析协议(ARP)等计费策略信息和QoS信息。
6、PGW向SGW发送消息，内容包括但不限于：PGW地址和隧道端点 标识(TEID)。
7、SGW向MME发送消息，内容包括但不限于：PGW地址和TEID，SGW地址和TEID等。
8、MME向eNodeB发送消息，内容包括但不限于：SGW地址和TEID，以及分配给UE的IP地址
9、eNodeB向UE传递UE的IP地址。
10、eNodeB向MME传递eNodeB的地址和TEID。
11、MME向SGW传递eNodeB的地址和TEID，打通数据传输链路。
12、UE通过eNodeB、SGW和PGW进行上下行数据的传递。
通过以上连接的建立，UE可以与Internet网络进行上下行数据的传递。
从上述过程中可以看出，由于相关技术中的EPC架构中，各个网元的控制功能各不相同，数据转发与状态控制紧密耦合，这不利于网络的快速演进和成本的降低，而且各个控制网元之间的信令传递频繁，信令处理时间较长。
发明内容
为了克服相关技术中存在的上述问题，本公开的实施例提供了一种业务数据的传输方法、装置、控制设备及通信系统，能够选择满足用户附着请求的数据转发设备，并直接与选择的数据转发设备和基站交互，减少了信令的交互，节省了信令处理时间。
为了解决上述技术问题，本公开采用如下技术方案：
依据本公开实施例的一个方面，提供了一种，业务数据的传输方法，包括：
接收基站发送的用户附着请求；
根据所述用户附着请求，从多个数据转发设备中选择一个数据转发设备；
与选择的所述数据转发设备和基站交互，在网络与用户设备间进行上下行业务数据的传输。
其中，上述方案中，所述用户附着请求包括：用户设备的业务标识；
根据所述用户附着请求，从多个数据转发设备中选择一个数据转发设备的步骤包括：
获取域名服务器根据所述业务标识解析的网络连接地址；
根据所述网络连接地址，从多个数据转发设备中选择与所述网络连接地址相匹配的数据转发设备。
其中，上述方案中，所述根据所述网络连接地址，从多个数据转发设备中选择与所述网络连接地址相匹配的数据转发设备的步骤之后，所述方法还包括：
从多个与所述网络连接地址相匹配的数据转发设备中选择一个离用户设备最近的数据转发设备或一个负载最小的数据转发设备。
其中，上述方案中，与选择的所述数据转发设备和基站交互，在网络与用户设备间进行上下行业务数据的传输的步骤包括：
从选择的所述数据转发设备对应的IP地址池中选择一个分配给用户设备的IP地址；
根据所述IP地址，在网络与用户设备间进行上下行业务数据的传输。
其中，上述方案中，所述从选择的所述数据转发设备对应的IP地址池中选择一个分配给用户设备的IP地址的步骤之后还包括：
将用户设备的所述IP地址、业务标识以及用户标识信息发送给数据库；
从所述数据库中获取所述用户设备的签约数据、计费策略以及服务质量保障策略。
其中，上述方案中，根据所述IP地址，在网络与用户设备间进行上下行业务数据的传输的步骤包括：
向所述数据转发设备发送创建会话请求；
在接收到所述数据转发设备根据所述创建会话请求反馈的创建会话响应时，向所述基站发送附着接收消息；
在接收到所述基站反馈的附着完成消息时，向所述数据转发设备发送数据转发信令，并由所述数据转发设备和所述基站根据所述IP地址传输所述服务器与用户设备之间的上下行业务数据。
其中，上述方案中，根据所述IP地址，在网络与用户设备间进行上下行业务数据的传输的步骤包括：
向所述数据转发设备发送创建会话请求；
向所述基站发送附着接收消息；
接收所述数据转发设备根据所述创建会话请求反馈的创建会话响应；
在接收到所述基站反馈的附着完成消息时，由所述数据转发设备和所述基站根据所述IP地址传输所述服务器与用户设备之间的上下行业务数据。
其中，上述方案中，所述创建会话请求中包括：所述IP地址，控制设备的隧道端点标识，所述计费策略以及所述服务质量保障策略；
所述创建会话响应包括：所述数据转发设备的隧道端点标识；
所述附着接收消息包括：所述数据转发设备的地址、所述数据转发设备的隧道端点标识、所述IP地址、所述控制设备的隧道端点标识和所述服务质量保障策略；
附着完成消息包括：所述基站的地址和隧道端点标识；
所述数据转发信令包括：所述基站的地址和隧道端点标识。
其中，上述方案中，所述创建会话请求中包括：所述IP地址、所述基站
的地址、所述计费策略以及所述服务质量保障策略；
所述附着接收消息包括：所述数据转发设备的地址、所述IP地址以及所述服务质量保障策略。
依据本公开实施例的另一个方面，还提供了一种业务数据的传输装置，包括：
接收模块，用于接收基站发送的用户附着请求；
选择模块，用于根据所述用户附着请求，从多个数据转发设备中选择一个数据转发设备；
交互模块，用于与选择的所述数据转发设备和基站交互，在网络与用户设备间进行上下行业务数据的传输。
其中，上述方案中，所述用户附着请求包括：用户设备的业务标识；
所述选择模块包括：
获取单元，用于获取域名服务器根据所述业务标识解析的网络连接地址；
第一选择单元，用于根据所述网络连接地址，从多个数据转发设备中选择与所述网络连接地址相匹配的数据转发设备。
其中，上述方案中，所述选择模块还包括：
第二选择单元，用于从多个与所述网络连接地址相匹配的数据转发设备中选择一个离用户设备最近的数据转发设备或一个负载最小的数据转发设备。
其中，上述方案中，所述交互模块包括：
分配单元，用于从选择的所述数据转发设备对应的IP地址池中选择一个分配给用户设备的IP地址；
传输单元，用于根据所述IP地址，在网络与用户设备间进行上下行业务数据的传输。
其中，上述方案中，所述交互模块还包括：
发送单元，用于将用户设备的所述IP地址、业务标识以及用户标识信息发送给数据库；
接收单元，用于从所述数据库中获取所述用户设备的签约数据、计费策略以及服务质量保障策略。
其中，上述方案中，所述传输单元包括：
会话请求子单元，用于向所述数据转发设备发送创建会话请求；
附着请求子单元，用于在接收到所述数据转发设备根据所述创建会话请求反馈的创建会话响应时，向所述基站发送附着接收消息；
转发子单元，用于在接收到所述基站反馈的附着完成消息时，向所述数据转发设备发送数据转发信令，并由所述数据转发设备和所述基站根据所述IP地址传输所述服务器与用户设备之间的上下行业务数据。
其中，上述方案中，所述传输单元包括：
第一发送子单元，用于向所述数据转发设备发送创建会话请求；
第二发送子单元，用于向所述基站发送附着接收消息；
第一接收子单元，用于接收所述数据转发设备根据所述创建会话请求反馈的创建会话响应；
第二接收子单元，用于在接收到所述基站反馈的附着完成消息时，由所述数据转发设备和所述基站根据所述IP地址传输所述服务器与用户设备之间的上下行业务数据。
其中，上述方案中，所述创建会话请求中包括：所述IP地址，控制设备的隧道端点标识，所述计费策略以及所述服务质量保障策略；
所述创建会话响应包括：所述数据转发设备的隧道端点标识；
所述附着接收消息包括：所述数据转发设备的地址、所述数据转发设备的隧道端点标识、所述IP地址、所述控制设备的隧道端点标识和所述服务质量保障策略；
附着完成消息包括：所述基站的地址和隧道端点标识；
所述数据转发信令包括：所述基站的地址和隧道端点标识。
其中，上述方案中，所述创建会话请求中包括：所述IP地址、所述基站
的地址、所述计费策略以及所述服务质量保障策略；
所述附着接收消息包括：所述数据转发设备的地址、所述IP地址以及所述服务质量保障策略。
依据本公开实施例的另一个方面，还提供了一种控制设备，包括上述所述的业务数据的传输装置。
依据本公开实施例的另一个方面，还提供了一种通信系统，包括上述所述的控制设备。
本公开实施例的有益效果是：
本公开实施例的业务数据的传输方法，接收基站发送的用户附着请求，并根据用户附着请求，从多个数据转发设备中选择一个数据转发设备，并直接通过选择的数据转发设备和基站交互，从而实现在网络与用户设备间进行上下行业务数据的传输。因此，本公开实施例的业务数据传输方法，减少了信令的交互，节省了信令处理时间。
附图说明
图1表示相关技术中的EPC通信系统架构图；
图2表示本公开实施例的业务数据传输方法涉及的EPC通信系统架构图；
图3表示本公开实施例的业务数据传输方法流程图；
图4表示本公开至少一些实施例的业务数据传输装置的结构框图；
图5表示本公开至少一些实施例的业务数据传输装置的结构框图；
图6表示本公开实施例的业务数据传输方法采用GTP协议的实现流程示意图；
图7表示本公开实施例的业务数据传输方法采用基于IP的openflow协议的实现流程示意图。
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。
依据本公开实施例的一个方面，提供了一种业务数据传输方法，该方法应用于控制面设备融合后的EPC网络中。如图2所示，该EPC网络架构将网元中控制面和转发面分开，控制面设备进行重新融合，成为具有网络整体控制能力的控制设备(controller)，按需在网络中使用通用的转发面设备(即图2中所示的数据转发设备DGW)，简化网络部署，从而实现对转发面设备的统一控制，进而实现更快的控制面信令处理，节省转发时间，降低时延。
该方法应用于图2所示的控制设备，该控制设备首先，接收基站发送的用户附着请求；接着，根据所述用户附着请求，从多个数据转发设备中选择一个数据转发设备；最后，与选择的所述数据转发设备和基站交互，在网络与用户设备间进行上下行业务数据的传输。因此，本公开实施例的业务数据的传输方法，由控制设备选择满足用户附着请求的数据转发设备，并直接与选择的数据转发设备和基站交互，减少了信令的交互，节省了信令处理时间。
如图3所示，该方法包括：
步骤S31、接收基站发送的用户附着请求。
其中，所述用户附着请求包括：用户设备的业务标识。当然可以理解的是，对于所述用户附着请求中携带的具体信息，并不局限于此，比如，还可携带用户设备的IMSI。
另外，用户设备进行实际业务之前，需要初始附着，因此，该用户设备会通过基站向控制设备发送用户附着请求，因此控制设备接收的用户附着请求是基站转发的用户设备向基站发送的。
步骤S33、根据所述用户附着请求，从多个数据转发设备中选择一个数 据转发设备。
在控制面设备融合后的EPC架构中，一个控制设备下可以控制多个数据转发设备，且多个数据转发设备分别连接了不同的网络，例如局域网、城域网或广域网。因此，当一个用户设备发起用户附着请求时，控制设备需要知道该用户设备需要连接哪一个网络。其中，连接的网络类型一般与用户设备所要进行的业务相关，所以，控制设备会根据用户附着请求中携带的用户设备的业务标识为该用户设备从多个数据转发设备中选择一个可用的数据转发设备。
其中，该可用的数据转发设备需要与用户设备所要连接的网络相匹配。因此，步骤S33包括：
获取域名服务器根据所述业务标识解析的网络连接地址；
根据所述网络连接地址，从多个数据转发设备中选择与所述网络连接地址相匹配的数据转发设备。
为了使得EPC网络中的各个数据转发设备的负载呈现均衡的状态，或使网络运行更加顺畅，可进一步从多个与所述网络连接地址相匹配的数据转发设备中选择一个离用户设备最近的数据转发设备或一个负载最小的数据转发设备。
步骤S35、与选择的所述数据转发设备和基站交互，在网络与用户设备间进行上下行业务数据的传输。
在EPC网络中，不同的用户设备进行相应的业务，会对应有不同的IP地址。而在EPC网络架构中的控制设备上配置有地址池，该控制设备负责用户设备的IP地址的分配。所以，当满足用户设备的业务需求的数据转发设备选定之后，控制设备会从选择的所述数据转发设备对应的IP地址池中选择一个分配给该用户设备，然后，根据为该用户设备分配的IP地址，在网络与用户设备之间进行上下行业务数据的传输。
另外，用户设备通过基站与数据转发设备与网络进行上下行数据传输时，基站需要知道与该用户设备对应的服务质量保障策略，数据转发设备需要知道计费策略和服务质量保障策略。因此，当为用户设备分配了IP地址后，还需要将用户设备的所述IP地址、业务标识以及IMSI发送给数据库，以便数 据库可以根据这些信息查找对应于该用户设备的签约数据、计费策略以及服务质量保障策略，并下发给控制设备。
控制设备获取到用户设备的签约信息、计费策略以及服务质量保障策略后，控制设备将签约信息保存，并将计费策略和服务质量保障策略下发数据转发设备，将服务质量保障策略下发基站，使得当用户设备在进行上下行数据传输时，数据转发设备可以执行计费策略，进行数据包的流量统计，时长统计，并根据计费策略将测量记录上报给控制设备，控制设备对计费测量信息进行统计，生成话单后再上报至相应网元。
其中，根据所述IP地址，在网络与用户设备间进行上下行业务数据的传输的过程中，主要需要控制设备与数据转发设备之间创建会话，与基站之间实现附着，最终打通上下行数据的传输链路。因此，控制设备可以在与数据转发设备之间创建会话的过程中，将计费策略和服务质量保障策略作为相应信令的携带信息下发给数据转发设备，在与基站实现附着的过程中，将服务质量保障策略作为相应信令的携带信息下发给基站。
另外，由于EPC网络的控制面设备融合后，控制设备和数据转发设备之间的协议，可以采用通用无线分组业务隧道(GTP)协议，也可以选择基于IP的openflow协议。
当控制设备与数据转发设备之间采用GTP协议时，所述根据所述IP地址，在网络与用户设备间进行上下行业务数据的传输的步骤包括：
向所述数据转发设备发送创建会话请求；
在接收到所述数据转发设备根据所述创建会话请求反馈的创建会话响应时，向所述基站发送附着接收消息；
在接收到所述基站反馈的附着完成消息时，向所述数据转发设备发送数据转发信令，并由所述数据转发设备和所述基站根据所述IP地址传输所述服务器与用户设备之间的上下行业务数据。
其中，所述创建会话请求中包括：所述IP地址，控制设备的隧道端点标识，所述计费策略以及所述服务质量保障策略；所述创建会话响应包括：所述数据转发设备的隧道端点标识；所述附着接收消息包括：所述数据转发设备的地址、所述数据转发设备的隧道端点标识、所述IP地址、所述控制设 备的隧道端点标识和所述服务质量保障策略；附着完成消息包括：所述基站的地址和隧道端点标识；所述数据转发信令包括：所述基站的地址和隧道端点标识。
由于GTP协议规定，在第一设备向第二设备发送信令信息时，第一设备需要携带第一设备的TEID，使得第二设备可以根据第一设备的TEID向第一设备回复信息，当然，第二设备回复信息时，也需要携带第二设备的TEID。因此，在上述过程中，任一网元在向另一网元发送相应信令时，均携带了相应的TED。
此外，对比现有技术，在打通上下行数据传输链路的过程，本公开实施例的业务数据传输方法中，主要仅涉及控制设备和数据转发设备这两个网元，且数据转发设备的TEID和地址信息仅需要通知控制设备，对应与现有技术中的流程，PGW要将自身的TEID和地址传递给SGW。SGW要将自身的TEID和地址、PGW的TEID和地址传递给MME。因此，本发实施例的业务数据传输方法，涉及网元较少，且大大减少了信令的发送，减轻了网络负担。
当控制设备与数据转发设备之间采用基于IP的openflow协议时，所述根据所述IP地址，在网络与用户设备间进行上下行业务数据的传输的步骤包括：
向所述数据转发设备发送创建会话请求；
向所述基站发送附着接收消息；
接收所述数据转发设备根据所述创建会话请求反馈的创建会话响应；
在接收到所述基站反馈的附着完成消息时，由所述数据转发设备和所述基站根据所述IP地址传输所述服务器与用户设备之间的上下行业务数据。
其中，所述创建会话请求中包括：所述IP地址、所述基站的地址、所述
计费策略以及所述服务质量保障策略；
所述附着接收消息包括：所述数据转发设备的地址、所述IP地址以及所述服务质量保障策略。
由于基于IP的openflow协议，没有隧道封包机制，所述上述过程中涉及的相关信令信息中，并不需要携带发送方网元的TEID，且基于IP的openflow协议下，控制设备知道基站的地址和数据转发设备的地址，并且请求创建会话，就是控制设备将基站的地址告知给数据转发设备；请求附着，就是控制 设备将数据转发设备的地址告知给基站；最终上下行数据传输链路打通，就是基站知道了数据转发设备的地址，数据转发设备知道了基站的地址。所以，对于控制设备向数据转发设备请求创建会话，以及控制设备向基站请求附着的步骤可同时进行，且当基站告知控制设备附着成功时，也不再需要控制设备将基站的地址告知给数据转发设备。
综上所述，控制设备和数据转发设备之间的协议采用GTP协议时，本发实施例的业务数据的传输方法，在控制面设备融合后的EPC网络架构中的实现流程如图6所示：
601、用户设备通过基站(eNodeB)向控制设备(controller)发送连接请求(attach request)，该消息包含但不限于：IMSI，业务标识等；
602、Controller根据业务标识和域名服务器的地址解析，筛选出可用的数据转发设备(DGW)，Controller再根据DGW的负载情况，为该UE选择合适的DGW，并分配对应的IP地址。
603、Controller向数据库(database)提供UE IP地址，业务标识，IMSI等信息，来向database请求数据；
604、database向Controller发送信息包括但不限于：签约数据，计费策略以及服务质量(QoS)保障策略等信息；
605、Controller向DGW发送建立会话请求(Create session request)，该信令包括但不限于：UE IP地址，Controller TEID，QoS信息、计费策略等；
606、DGW向Controller发送建立会话响应(Create session response)，该信令包括但不限于：DGW TEID等；
607、Controller向eNodeB发送附着请求(attach accept)；该信令包括但不限于：DGW的地址，DGW TEID，UE IP地址，Controller TEID，QoS信息等；
608、eNodeB向Controller发送成功附着响应(attach complete message)，该信令包括但不限于：eNodeB TEID，eNodeB的地址等；
609、Controller向DGW发送信令，该信令包括但不限于：eNodeB TEID，eNodeB的地址等；
610、eNodeB会将接收到的UE的IP地址，eNodeB的地址和TEID，DGW 的地址和TEID发送给UE。UE通过eNodeB和DGW，与Internet进行上下行数据传递。
控制设备和数据转发设备之间的协议采用基于IP的openflow协议时，本发实施例的业务数据的传输方法，在控制面设备融合后的EPC网络架构中的实现流程如图7所示：
701、用户设备通过eNodeB向controller发送attach request。该消息包含但不限于IMSI，业务标识等；
702、Controller根据业务标识和域名服务器的地址解析，筛选出可用的DGW，Controller再根据DGW的负载情况，为该UE选择合适的DGW，并分配对应的IP地址。
703、Controller向database提供UE IP address，业务标识，IMSI等信息，来请求数据；
704、database向Controller发送信息包括但不限于：签约数据，计费策略以及QoS保障策略等信息；
705、Controller向DGW发送Create session request。该信令包括但不限于：UE IP address，eNodeB地址，QoS信息和计费信息等。
706、DGW向Controller发送Create session response。
707、Controller向eNodeB发送Attach accept。该信令包括但不限于：DGW的地址，UE IP地址，QoS信息等；
708、eNodeB向Controller发送Attach complete message。
709、eNodeB会将接收到的UE的IP地址，eNodeB的地址，DGW的地址发送给UE。UE通过eNodeB和DGW，与Internet进行上下行数据传递。
依据本公开实施例的另一个方面，还提供了一种业务数据传输装置，如图4所示，该装置400包括：
接收模块401，用于接收基站发送的用户附着请求；
选择模块403，用于根据所述用户附着请求，从多个数据转发设备中选择一个数据转发设备；
交互模块405，用于与选择的所述数据转发设备和基站交互，在网络与用户设备间进行上下行业务数据的传输。
可选地，所述用户附着请求包括：用户设备的业务标识；
所述选择模块403包括：
获取单元4031，用于获取域名服务器根据所述业务标识解析的网络连接地址；
第一选择单元4032，用于根据所述网络连接地址，从多个数据转发设备中选择与所述网络连接地址相匹配的数据转发设备。
可选地，所述选择模块403还包括：
第二选择单元4033，用于从多个与所述网络连接地址相匹配的数据转发设备中选择一个离用户设备最近的数据转发设备或一个负载最小的数据转发设备。
可选地，所述交互模块405包括：
分配单元4051，用于从选择的所述数据转发设备对应的IP地址池中选择一个分配给用户设备的IP地址；
传输单元4052，用于根据所述IP地址，在网络与用户设备间进行上下行业务数据的传输。
可选地，所述交互模块405还包括：
发送单元4053，用于将用户设备的所述IP地址、业务标识以及用户标识信息发送给数据库；
接收单元4054，用于从所述数据库中获取所述用户设备的签约数据、计费策略以及服务质量保障策略。
可选地，所述传输单元4052包括：
会话请求子单元40521，用于向所述数据转发设备发送创建会话请求；
附着请求子单元40522，用于在接收到所述数据转发设备根据所述创建会话请求反馈的创建会话响应时，向所述基站发送附着接收消息；
转发子单元40523，用于在接收到所述基站反馈的附着完成消息时，向所述数据转发设备发送数据转发信令，并由所述数据转发设备和所述基站根据所述IP地址传输所述服务器与用户设备之间的上下行业务数据。
可选地，所述创建会话请求中包括：所述IP地址，控制设备的隧道端点标识，所述计费策略以及所述服务质量保障策略；
所述创建会话响应包括：所述数据转发设备的隧道端点标识；
所述附着接收消息包括：所述数据转发设备的地址、所述数据转发设备的隧道端点标识、所述IP地址、所述控制设备的隧道端点标识和所述服务质量保障策略；
附着完成消息包括：所述基站的地址和隧道端点标识；
所述数据转发信令包括：所述基站的地址和隧道端点标识。
依据本公开实施例的另一个方面，还提供了一种业务数据传输装置，如图5所示，该装置400包括：
接收模块401，用于接收基站发送的用户附着请求；
选择模块403，用于根据所述用户附着请求，从多个数据转发设备中选择一个数据转发设备；
交互模块405，用于与选择的所述数据转发设备和基站交互，在网络与用户设备间进行上下行业务数据的传输。
可选地，所述用户附着请求包括：用户设备的业务标识；
所述选择模块403包括：
获取单元4031，用于获取域名服务器根据所述业务标识解析的网络连接地址；
选择单元4032，用于根据所述网络连接地址，从多个数据转发设备中选择与所述网络连接地址相匹配的数据转发设备。
可选地，所述选择模块403还包括：
第二选择单元4033，用于从多个与所述网络连接地址相匹配的数据转发设备中选择一个离用户设备最近的数据转发设备或一个负载最小的数据转发设备。
可选地，所述交互模块405包括：
分配单元4051，用于从选择的所述数据转发设备对应的IP地址池中选择一个分配给用户设备的IP地址；
传输单元4052，用于根据所述IP地址，在网络与用户设备间进行上下行业务数据的传输。
可选地，所述交互模块405还包括：
发送单元4053，用于将用户设备的所述IP地址、业务标识以及用户标识信息发送给数据库；
接收单元4054，用于从所述数据库中获取所述用户设备的签约数据、计费策略以及服务质量保障策略。
可选地，所述传输单元4052包括：
第一发送子单元40524，用于向所述数据转发设备发送创建会话请求；
第二发送子单元40525，用于向所述基站发送附着接收消息；
第一接收子单元40526，用于接收所述数据转发设备根据所述创建会话请求反馈的创建会话响应；
第二接收子单元40527，用于在接收到所述基站反馈的附着完成消息时，由所述数据转发设备和所述基站根据所述IP地址传输所述服务器与用户设备之间的上下行业务数据。
可选地，所述创建会话请求中包括：所述IP地址、所述基站的地址、所述计费策略以及所述服务质量保障策略；
所述附着接收消息包括：所述数据转发设备的地址、所述IP地址以及所述服务质量保障策略。
依据本公开实施例的另一个方面，还提供了一种控制设备，包括上述所述的业务数据传输装置。
依据本公开实施例的另一个方面，还提供了一种通信系统，包括上述所述的控制设备。该通信系统如可以是分组核心网(EPC)通信系统。
以上所述的是本公开的优选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本公开所述的原理前提下还可以作出若干改进和润饰，这些改进和润饰也在本公开的保护范围内。

Claims (20)

  1. 一种业务数据的传输方法，包括：
    接收基站发送的用户附着请求；
    根据所述用户附着请求，从多个数据转发设备中选择一个数据转发设备；
    与选择的所述数据转发设备和基站交互，在网络与用户设备间进行上下行业务数据的传输。
  2. 根据权利要求1所述的业务数据的传输方法，其中，所述用户附着请求包括：用户设备的业务标识；
    根据所述用户附着请求，从多个数据转发设备中选择一个数据转发设备的步骤包括：
    获取域名服务器根据所述业务标识解析的网络连接地址；
    根据所述网络连接地址，从多个数据转发设备中选择与所述网络连接地址相匹配的数据转发设备。
  3. 根据权利要求2所述的业务数据的传输方法，其中，所述根据所述网络连接地址，从多个数据转发设备中选择与所述网络连接地址相匹配的数据转发设备的步骤之后，所述方法还包括：
    从多个与所述网络连接地址相匹配的数据转发设备中选择一个离用户设备最近的数据转发设备或一个负载最小的数据转发设备。
  4. 根据权利要求1所述的业务数据的传输方法，其中，与选择的所述数据转发设备和基站交互，在网络与用户设备间进行上下行业务数据的传输的步骤包括：
    从选择的所述数据转发设备对应的IP地址池中选择一个分配给用户设备的IP地址；
    根据所述IP地址，在网络与用户设备间进行上下行业务数据的传输。
  5. 根据权利要求4所述的业务数据的传输方法，其中，所述从选择的所述数据转发设备对应的IP地址池中选择一个分配给用户设备的IP地址的步骤之后还包括：
    将用户设备的所述IP地址、业务标识以及用户标识信息发送给数据库；
    从所述数据库中获取所述用户设备的签约数据、计费策略以及服务质量保障策略。
  6. 根据权利要求5所述的业务数据的传输方法，其中，根据所述IP地址，在网络与用户设备间进行上下行业务数据的传输的步骤包括：
    向所述数据转发设备发送创建会话请求；
    在接收到所述数据转发设备根据所述创建会话请求反馈的创建会话响应时，向所述基站发送附着接收消息；
    在接收到所述基站反馈的附着完成消息时，向所述数据转发设备发送数据转发信令，并由所述数据转发设备和所述基站根据所述IP地址传输所述服务器与用户设备之间的上下行业务数据。
  7. 根据权利要求5所述的业务数据的传输方法，其中，根据所述IP地址，在网络与用户设备间进行上下行业务数据的传输的步骤包括：
    向所述数据转发设备发送创建会话请求；
    向所述基站发送附着接收消息；
    接收所述数据转发设备根据所述创建会话请求反馈的创建会话响应；
    在接收到所述基站反馈的附着完成消息时，由所述数据转发设备和所述基站根据所述IP地址传输所述服务器与用户设备之间的上下行业务数据。
  8. 根据权利要求6所述的业务数据的传输方法，其中，
    所述创建会话请求中包括：所述IP地址，控制设备的隧道端点标识，所述计费策略以及所述服务质量保障策略；
    所述创建会话响应包括：所述数据转发设备的隧道端点标识；
    所述附着接收消息包括：所述数据转发设备的地址、所述数据转发设备的隧道端点标识、所述IP地址、所述控制设备的隧道端点标识和所述服务质量保障策略；
    附着完成消息包括：所述基站的地址和隧道端点标识；
    所述数据转发信令包括：所述基站的地址和隧道端点标识。
  9. 根据权利要求7所述的业务数据的传输方法，其中，
    所述创建会话请求中包括：所述IP地址、所述基站的地址、所述计费策略以及所述服务质量保障策略；
    所述附着接收消息包括：所述数据转发设备的地址、所述IP地址以及所述服务质量保障策略。
  10. 一种业务数据的传输装置，包括：
    接收模块，用于接收基站发送的用户附着请求；
    选择模块，用于根据所述用户附着请求，从多个数据转发设备中选择一个数据转发设备；
    交互模块，用于与选择的所述数据转发设备和基站交互，在网络与用户设备间进行上下行业务数据的传输。
  11. 根据权利要求10所述的业务数据的传输装置，其中，所述用户附着请求包括：用户设备的业务标识；
    所述选择模块包括：
    获取单元，获取域名服务器根据所述业务标识解析的网络连接地址；
    第一选择单元，用于根据所述网络连接地址，从多个数据转发设备中选择与所述网络连接地址相匹配的数据转发设备。
  12. 根据权利要求11所述的业务数据的传输装置，其中，所述选择模块还包括：
    第二选择单元，用于从多个与所述网络连接地址相匹配的数据转发设备中选择一个离用户设备最近的数据转发设备或一个负载最小的数据转发设备。
  13. 根据权利要求10所述的业务数据传输装置，其中，所述交互模块包括：
    分配单元，用于从选择的所述数据转发设备对应的IP地址池中选择一个分配给用户设备的IP地址；
    传输单元，用于根据所述IP地址，在网络与用户设备间进行上下行业务数据的传输。
  14. 根据权利要求13所述的业务数据的传输装置，其中，所述交互模块还包括：
    发送单元，用于将用户设备的所述IP地址、业务标识以及用户标识信息发送给数据库；
    接收单元，用于从所述数据库中获取所述用户设备的签约数据、计费策 略以及服务质量保障策略。
  15. 根据权利要求14所述的业务数据的传输装置，其中，所述传输单元包括：
    会话请求子单元，用于向所述数据转发设备发送创建会话请求；
    附着请求子单元，用于在接收到所述数据转发设备根据所述创建会话请求反馈的创建会话响应时，向所述基站发送附着接收消息；
    转发子单元，用于在接收到所述基站反馈的附着完成消息时，向所述数据转发设备发送数据转发信令，并由所述数据转发设备和所述基站根据所述IP地址传输所述服务器与用户设备之间的上下行业务数据。
  16. 根据权利要求14所述的业务数据的传输装置，其中，所述传输单元包括：
    第一发送子单元，用于向所述数据转发设备发送创建会话请求；
    第二发送子单元，用于向所述基站发送附着接收消息；
    第一接收子单元，用于接收所述数据转发设备根据所述创建会话请求反馈的创建会话响应；
    第二接收子单元，用于在接收到所述基站反馈的附着完成消息时，由所述数据转发设备和所述基站根据所述IP地址传输所述服务器与用户设备之间的上下行业务数据。
  17. 根据权利要求15所述的业务数据的传输装置，其中，
    所述创建会话请求中包括：所述IP地址，控制设备的隧道端点标识，所述计费策略以及所述服务质量保障策略；
    所述创建会话响应包括：所述数据转发设备的隧道端点标识；
    所述附着接收消息包括：所述数据转发设备的地址、所述数据转发设备的隧道端点标识、所述IP地址、所述控制设备的隧道端点标识和所述服务质量保障策略；
    附着完成消息包括：所述基站的地址和隧道端点标识；
    所述数据转发信令包括：所述基站的地址和隧道端点标识。
  18. 根据权利要求16所述的业务数据的传输装置，其中，
    所述创建会话请求中包括：所述IP地址、所述基站的地址、所述计费策 略以及所述服务质量保障策略；
    所述附着接收消息包括：所述数据转发设备的地址、所述IP地址以及所述服务质量保障策略。
  19. 一种控制设备，包括如权利要求10～18任意一项所述的业务数据的传输装置。
  20. 一种通信系统，包括如权利要求19所述的控制设备。
PCT/CN2016/097522 2015-10-29 2016-08-31 一种业务数据的传输方法、装置、控制设备及通信系统 Ceased WO2017071399A1 (zh)

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