WO2015010487A1 - 分流数据传输方法、传输设备、系统以及用户终端 - Google Patents

分流数据传输方法、传输设备、系统以及用户终端 Download PDF

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Publication number
WO2015010487A1
WO2015010487A1 PCT/CN2014/076860 CN2014076860W WO2015010487A1 WO 2015010487 A1 WO2015010487 A1 WO 2015010487A1 CN 2014076860 W CN2014076860 W CN 2014076860W WO 2015010487 A1 WO2015010487 A1 WO 2015010487A1
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Prior art keywords
network
user terminal
address
encapsulated
data transmission
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PCT/CN2014/076860
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English (en)
French (fr)
Inventor
黄开缔
雷永成
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成都西加云杉科技有限公司
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Priority to US14/396,803 priority Critical patent/US20160277967A1/en
Publication of WO2015010487A1 publication Critical patent/WO2015010487A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/08Load balancing or load distribution
    • H04W28/082Load balancing or load distribution among bearers or channels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46Interconnection of networks
    • H04L12/4633Interconnection of networks using encapsulation techniques, e.g. tunneling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/66Layer 2 routing, e.g. in Ethernet based MAN's
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0231Traffic management, e.g. flow control or congestion control based on communication conditions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/30Resource management for broadcast services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/14Multichannel or multilink protocols

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a distributed data transmission method, a distributed data transmission device, a system, and a user terminal. Background technique
  • WLAN Wireless Local Area Network
  • IEEE 802.11 wireless technology refers to a group of computers and related devices interconnected by IEEE 802.11 wireless technology. It is a computer LAN that uses wireless channels as a transmission medium. It is an important supplement and extension of wired networking. It has gradually become a vital component of computer networks, and is widely used in areas where mobile data processing is required or where physical transmission media cannot be routed. With the development and development of the IEEE 802.11 wireless network standard, the wireless network technology is more mature and improved. It has been successfully used in many industries, such as financial securities, education, large enterprises, industrial and mining ports, government agencies, hotels, airports, military and so on. The products mainly include: wireless access points, wireless network cards, wireless routers, wireless gateways, wireless bridges, etc.
  • IBSS Independent Basic Service Set, also known as Ad_hoc
  • BSS Base Service Set, also known as Infrastructure
  • WLANs are low-cost due to the looser technology architecture used by WLANs and the use of free unlicensed spectrum. Its high cost performance enables the rapid development and deployment of WLANs, and is regarded as a means to enhance the capacity of local area networks by cellular network operators that use 3GPP cellular network technology as the main body of network technology. Therefore, the 3GPP Association has introduced two architectures for WLAN access 3GPP convergence in its standards, namely non-trusted access and trusted access.
  • the WiFi network When the network is not trusted, because the WLAN network is not trusted by the operator, from the WiFi network The data needs to pass through an ePDG (enhanced message data gateway) gateway, and then access the carrier's own service or Internet service through the P-GW (PDN Ga teway packet data network gateway) in 3GPP.
  • the trusted access network because the WiFi network is trusted by the operator, its data can directly access the operator's own service or Internet service through the P-GW.
  • the user terminal can split part of the data traffic into the WLAN network, thereby alleviating the increasing traffic pressure faced by the cellular network.
  • the user terminal When the user data stream is in some situation (such as network congestion), when switching from an LTE network (such as a cellular network) to a WiFi network (such as a WLAN) network, the user terminal accesses both the cellular network and the WLAN network at the same time.
  • LTE network such as a cellular network
  • WiFi network such as a WLAN
  • Different IP addresses are assigned in the middle; thus, because the user uses different IP addresses in the LTE network and the WiFi network, according to the traditional offload data transmission method, the IP address bound by the user application is changed, thereby causing the user application to be interrupted or restarted. problem.
  • the technical problem to be solved by the present invention is: How to provide a shunt data transmission method capable of seamlessly switching downlink services from a first network to a second network when a downlink service of a user terminal is offloaded from a first network to a second network , offloading transmission equipment, systems, and user terminals.
  • a method for distributing data by using a stream comprising:
  • the IP address of the IP address of the user equipment is encapsulated into the second IP address of the user equipment according to the obtained IP address and the physical address.
  • the media access layer of the network corresponds to the format of the packet; and the encapsulated packet is transmitted to the user terminal by using the second network.
  • the destination address is an IP packet of the IP address of the user equipment in the first network.
  • the packet of the media access layer corresponding to the second network is configured to: add the physical address of the access module corresponding to the second network by the user terminal before the IP address of the IP address of the first network is added to the IP address of the first network.
  • the media access layer header for the destination address is configured to: add the physical address of the access module corresponding to the second network by the user terminal before the IP address of the IP address of the first network is added to the IP address of the first network.
  • the transmitting the encapsulated packet to the user terminal by using the second network includes: forwarding the encapsulated packet to the user terminal by using the Layer 2 tunnel and/or the second layer.
  • the first network is a cellular network
  • the second network is a wireless local area network.
  • the embodiment of the present invention further provides a method for transmitting a data in a distributed manner, including: receiving, by a user terminal, a packet corresponding to a format of a medium access layer encapsulated in a second network by using a corresponding network access module;
  • the user terminal decapsulates the packet in the format corresponding to the medium access layer of the second network, and obtains an IP packet, where the destination address of the IP packet is the IP address of the user terminal in the first network. ;
  • the user terminal transmits the decapsulated packet to the upper layer application according to the IP address of the first network.
  • the reverse path filtering function of the user terminal is disabled.
  • the first network is a cellular network
  • the second network is a wireless local area network.
  • the present invention also provides a offload data transmission device, including:
  • An address obtaining module configured to obtain an IP address of the user terminal in the first network, and obtain a physical address of the access module corresponding to the second network of the user terminal;
  • the encapsulated transmission module is configured to: when the downlink service of the user terminal is offloaded from the first network to the second network, according to the IP address and the physical address acquired by the address obtaining module, the destination address is the IP address of the first network.
  • the IP packet is encapsulated into a packet corresponding to the medium access layer of the second network, and the encapsulated packet is transmitted to the user terminal by using the second network.
  • the offload data transmission device is integrated in the multi-service data gateway.
  • the embodiment of the present invention further provides a user terminal, including: a second network access module, configured to receive a packet in a format corresponding to a media access layer encapsulated in a second network; and a decapsulation module, configured to The packet received by the access module of the second network is encapsulated into a packet of a format corresponding to the medium access layer of the second network, and the IP packet is obtained, where the destination address of the IP packet is the first of the user terminal.
  • the IP address of the network; the message transmission module is set to follow the first
  • the IP address of the network transmits the encapsulated packet to the upper application.
  • the reverse path filtering function of the user terminal is disabled.
  • the embodiment of the invention further provides a offload data transmission system, comprising the above-mentioned offload data transmission device and the user terminal.
  • the offload data transmission mode obtained by the embodiment of the present invention obtains the IP address of the user terminal in the first network and the physical address of the second network access module of the user terminal; the downlink service of the user terminal is offloaded from the first network to the second In the network, according to the obtained address, the IP address of the IP address of the first network of the user terminal is encapsulated into a packet corresponding to the format of the second network media access layer, and then transmitted to the user terminal through the second network, Since the IP address bound by the user application is not changed, seamless switching of the downlink service from the first network to the second network can be implemented, thereby avoiding unnecessary interruption and restart of the user application, and improving the user experience.
  • FIG. 1 is a schematic diagram of an independent basic service set in the prior art
  • FIG. 2 is a schematic diagram of a basic service set in the prior art
  • FIG. 3 is a schematic flowchart of a method for transmitting a split data according to Embodiment 1 of the present invention
  • FIG. 4 is a schematic flowchart of a method for transmitting a split data in Embodiment 2 of the present invention
  • FIG. 5 is a schematic diagram of a format of a packet after encapsulation according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic structural diagram of a shunt data transmission device in Embodiment 3 of the present invention. detailed description
  • a method for transmitting a distributed data is provided. As shown in FIG. 3, the method mainly includes the following steps:
  • Step 11 Obtain an IP address of the user equipment in the first network, for example, IP1 in this embodiment;
  • Step 12 Obtain a physical address of the access module corresponding to the second network of the user terminal, for example, this embodiment is MAC 2;
  • Step 13 When the user data stream is offloaded from the first network to the second network due to some reasons, such as network congestion or low signal to noise ratio, etc., according to the obtained IP address and physical address,
  • the destination address is a packet in which the IP packet of the IP address of the first network of the user terminal is encapsulated into a format corresponding to the medium access layer of the second network;
  • Step 14 The packet encapsulated into the corresponding format of the second network media access layer is transmitted to the user terminal.
  • the first network and the second network may be: the first network is a cellular network, the second network is a wireless local area network, or the first network and the second network are different types of cellular networks, etc.; the foregoing cellular network may be: Long Term Evolution (LTE) network, Global System for Mob i 1 eCommunication (GSM) network, General Packet Radio Service (GPRS) network, Code Division Multiple Access (Code Division Multiple Access, CDMA) network, Wideband Code Division Multiple Access (WCDMA) network, Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network, etc. Etc.; the above wireless local area network can be based on IEEE802. lib protocol, IEEE802.11a protocol, IEEE802.11g protocol, IEEE802.11E protocol, IEEE802.11i protocol, wireless application protocol
  • LTE Long Term Evolution
  • GSM Global System for Mob i 1 eCommunication
  • GPRS General Packet Radio Service
  • CDMA Code Division Multiple Access
  • the wireless local area network is a WiFi based on the IEEE 802.11 series protocol.
  • the IP address bound to the user application that is, IP2
  • seamless switching of the downlink service from the first network to the second network can be implemented, thereby avoiding unnecessary application of the user.
  • the interruption and restart issues have improved the user experience.
  • the method for distributing the data provided by the present invention is described in detail by taking the first network as the LTE network and the second network as the WiFi network as an example.
  • the offload data device can be integrated in the packet multi-service data gateway MSG;
  • the first network is an LTE network
  • the second network is a WiFi network. Therefore, the first network access module of the user terminal UE is an LTE module, and the second network access module of the user terminal UE is a WiFi module.
  • the user terminal accesses the LTE network and the WiF i network respectively, has an IP address LTE-IP in the LTE network, and has an IP address WiF i_IP in the WiFi network. Meanwhile, the user terminal is connected in the LTE network.
  • the incoming module that is, the physical address of the LTE module is MAC1
  • the access terminal of the user terminal in the WiFi network that is, the physical address of the WiFi module is MAC2.
  • the user application first uses LTE-IP in the LTE network, and communicates through the multi-service data gateway (including the uplink Upl ink and the downlink Downl ink). 0
  • the distributed data transmission is integrated in the multi-service data gateway.
  • the device, the offload data transmission device can obtain the IP address LTE-IP of the user terminal in the LTE network, the physical address MAC1 of the LTE module of the user terminal, the IP address of the user terminal in the WiFi network, the WiFi-IP, and the WiFi module of the user terminal.
  • the physical address MAC2, and the obtained address information is bound, and saved as a user communication address information binding table.
  • the saved user communication address information binding table encapsulates the received IP packet whose destination address is an LTE-IP address into a packet corresponding to the format of the second network media access layer.
  • the present invention provides a specific encapsulation method, which may be that the destination address is that the user terminal adds the physical address of the second network access module of the user terminal to the target address before the IP address of the IP address of the first network.
  • the MAC header with MAC2 as the destination address is added before the received IP address whose destination address is the LTE-IP address.
  • the detailed format of the encapsulated packet is as shown in Figure 5.
  • MAC2 is used as the address of the target user terminal network access module
  • WiFi-IP is used as the receiving address of the user application.
  • Text as a payload (PayLoad).
  • the packet encapsulated in the corresponding format of the WiFi network medium access layer is transmitted to the user terminal; for example, the layer 2 tunnel (L2TP, Layer Two Tuning Protocol) and the second layer forwarding (L2F, Leve l 2) Forwarding protocol ), the packet corresponding to the format of the second network media access layer is transmitted to the user terminal.
  • the second network access module of the user terminal receives the packet encapsulated into a format corresponding to the second network media access layer; and decapsulates the packet encapsulated into a format corresponding to the second network media access layer; Transmitting the packet to the upper layer application according to the IP address of the first network of the user terminal.
  • the WiFi module of the user terminal UE receives the packet as the WiFi network medium access layer according to the physical address MAC2. After the packet is formatted, the packet encapsulated in the corresponding format of the WiFi network medium access layer is decapsulated. The packet is sent to the destination address LTE-IP. The packet is encapsulated according to the LTE-IP address of the user. The subsequent message is sent to the upper application. It should be noted that the reverse path filtering function of the user terminal needs to be disabled, otherwise the received packet will be discarded.
  • the seamless switching of the downlink service from the LTE network to the WiFi network can be implemented, thereby avoiding unnecessary application of the user.
  • the interruption and restart issues have improved the user experience.
  • a data distribution device is provided, as shown in FIG. 6, which mainly includes: an address obtaining module: configured to acquire an IP address of a user terminal in a first network, and obtain a second network access of the user terminal. The physical address of the module;
  • the encapsulated transmission module is configured to: when the downlink service of the user terminal is offloaded from the first network to the second network, encapsulate the IP packet whose destination address is the IP address of the user terminal in the first network as the second network according to the obtained address.
  • the packet corresponding to the format of the media access layer is transmitted to the user terminal via the second network.
  • the offload data device can be integrated in the packet multi-service data gateway MSG.
  • the user terminal corresponding to the above-mentioned offload data transmission device further includes: a second network access module configured to receive the medium encapsulated as the second network, in addition to the first network access module a packet corresponding to the format of the access layer; the decapsulation module is connected to the second network access module, and is configured to receive the packet corresponding to the format of the media access layer encapsulated in the second network by the access module of the second network.
  • the message transmission module is set to press The decapsulated message is transmitted to the upper application according to the IP address of the first network.
  • the reverse path filtering function of the user terminal is disabled.
  • the embodiment of the invention further provides a offload data transmission system, comprising the above-mentioned offload data transmission device and the user terminal.
  • seamless switching of the downlink service from the first network to the second network can be realized, thereby avoiding unnecessary interruption and restart of the user application, and improving the user experience.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本发明涉及通信技术领域,具体涉及一种分流数据传输方法、分流数据传输设备、系统以及用户终端。本发明实施例所提供的分流数据传输方法,通过获取用户终端在第一网络的IP地址以及用户终端第二网络接入模块的物理地址;在用户终端的下行业务从第一网络分流到第二网络时,根据获取的地址,将目的地址是用户终端在第一网络的IP地址的IP报文封装为第二网络媒体接入层对应格式的报文后经第二网络传输至用户终端,这样由于没有改变用户应用绑定的IP地址,因此能够实现下行业务从第一网络到第二网络的无缝切换,避免了用户应用不必要的中断以及重启问题,提升了用户体验。

Description

分流数据传输方法、 传^殳备、 系统以及用户终端 技术领域
本发明涉及通信技术领域, 具体涉及一种分流数据传输方法、 分流数 据传输设备、 系统以及用户终端。 背景技术
WLAN (Wireless Local Area Network, 无线局域网)是指釆用 IEEE 802.11无线技术进行互连的一组计算机和相关设备, 是以无线信道作传输 媒介的计算机局域网, 是有线联网方式的重要补充和延伸, 并逐渐成为计 算机网络中一个至关重要的组成部分, 广泛适用于需要可移动数据处理或 无法进行物理传输介质布线的领域。 随着 IEEE802.11无线网络标准的制定 与发展, 使无线网络技术更加成熟与完善。 并已成功的广泛应用于众多行 业, 如金融证券、 教育、 大型企业、 工矿港口、 政府机关、 酒店、 机场、 军队等。 产品主要包括: 无线接入点、 无线网卡、 无线路由器、 无线网关、 无线网桥等。
WLAN主要存在两种架构, 即 IBSS ( Independent Basic Service Set, 独立基本服务集, 也称为 Ad_hoc)和 BSS (Basic Service Set, 基本服务 集, 也称为 Infrastructure )。 在 IBSS架构中, 如图 1所示, 用户终端间 直接通过无线连接通信, 无需特定的设备进行中转通信。 在 BSS架构中, 如图 2所示, 用户终端间都需要通过接入点设备 (Access Point, AP ) 中 转进行通信, 并且还可以通过 AP访问 Internet业务。
由于 WLAN 使用的较松散的技术架构, 并使用免费的非牌照 (Unlicensed)频谱, WLAN具有了低成本的特点。 其高性价比使 WLAN得到 迅速的发展和部署, 并被以 3GPP蜂窝网络技术为网络技术主体的各蜂窝网 络运营商视为一种提升局部区域网络容量的手段。 故 3GPP协会在其标准中 推出了两种 WLAN接入 3GPP融合的架构, 即非可信任接入和可信任接入。 在非可信任接入网络时, 由于 WLAN网络是运营商不信任的, 从 WiFi 网络 的数据需要先通过一个 ePDG (增强报文数据网关)的网关, 再通过 3GPP中 P-GW ( PDN Ga teway分组数据网网关)访问运营商自有业务或者 Internet 业务。 而可信接入网络, 由于 WiFi网络是运营商信任的, 其数据可以直接 通过 P-GW访问运营商自有业务或者 Internet业务。 用户终端在该架构中, 可将部分数据流量分流到 WLAN网络中, 从而减轻蜂窝网络面临的日益增长 的流量压力。
当用户数据流处于某种原因 (如网络拥塞)等情况, 从 LTE 网络(如 蜂窝网络)向 WiFi网络(如 WLAN )网络切换时, 用户终端同时接入蜂窝网 络和 WLAN网络, 会在各网络中分配不同的 IP地址; 这样由于用户在 LTE 网络和 WiFi 网络中使用不同的 IP地址, 按照传统分流数据传输方法, 将 改变用户应用绑定的 IP地址, 从而导致用户应用出现中断或者重启等的问 题。 发明内容
(一)要解决的技术问题
本发明要解决的技术问题是: 如何提供一种在用户终端的下行业务从 第一网络分流到第二网络时, 能够实现下行业务从第一网络到第二网络无 缝切换的分流数据传输方法、 分流传输设备、 系统以及用户终端。
(二)技术方案
本发明实施例的技术方案如下:
一种分流数据传输方法, 包括:
获取用户终端在第一网络的 IP地址;
获取用户终端对应第二网络的接入模块的物理地址;
在用户终端的下行业务从第一网络分流到第二网络时, 根据获取的上 述 IP地址和上述物理地址, 将目的地址是该用户终端在第一网络的 IP地 址的 IP报文封装为第二网络的媒体接入层对应格式的报文; 将封装后的报 文经上述第二网络传输至该用户终端。
可选的, 所述将目的地址是用户终端在第一网络的 I P地址的 I P报文 封装为第二网络的媒体接入层对应格式的报文包括: 在所述目的地址是上 述第一网络的 IP地址的 IP报文前增加以用户终端对应第二网络的接入模 块的物理地址为目标地址的媒体接入层包头。
可选的, 上述将封装后的报文经第二网络传输至用户终端包括: 将封 装后的报文通过第二层隧道和 /或第二层转发至用户终端。
可选的, 所述第一网络为蜂窝网络, 第二网络为无线局域网络。 本发 明实施例还提供了一种分流数据传输方法, 包括: 用户终端通过对应第二 网络饿接入模块接收封装为第二网络的媒体接入层对应格式的报文;
该用户终端对所述封装为第二网络的媒体接入层对应格式的报文进行 去封装, 得到 IP报文, 其中, 该 IP报文的目的地址是该用户终端在第一 网络的 IP地址;
该用户终端按照上述第一网络的 IP地址将去封装后的报文传送至上层 应用。
可选的, 所述用户终端的反向路径过滤功能被禁用。
可选的, 所述第一网络为蜂窝网络, 第二网络为无线局域网络。
本发明还提供一种分流数据传输设备, 包括:
地址获取模块, 设置为获取用户终端在第一网络的 IP地址, 以及, 获 取用户终端对应第二网络的接入模块的物理地址;
封装传输模块, 设置为在该用户终端的下行业务从第一网络分流到第 二网络时, 才艮据上述地址获取模块获取的 IP地址和物理地址, 将目的地址 是上述第一网络的 IP地址的 IP报文封装为第二网络的媒体接入层对应格 式的报文, 将封装后的报文经上述第二网络传输至该用户终端。
可选的, 所述分流数据传输设备集成在多业务数据网关。
本发明实施例还提供了一种用户终端, 包括: 第二网络接入模块, 设 置为接收封装为第二网络的媒体接入层对应格式的报文; 去封装模块, 设 置为对所述第二网络的接入模块接收的封装为第二网络的媒体接入层对应 格式的报文进行去封装, 得到 IP报文, 其中, 所述 IP报文的目的地址是 所述用户终端在第一网络的 IP地址; 报文传送模块, 设置为按照所述第一 网络的 IP地址将去封装后的报文传送至上层应用。 可选的, 所述用户终端的反向路径过滤功能为可禁用的。
本发明实施例还提供了一种分流数据传输系统, 包括上述分流数据传 输设备和所述用户终端。
(三)有益效果
本发明实施例所提供的分流数据传输方式, 通过获取用户终端在第一 网络的 IP地址以及用户终端第二网络接入模块的物理地址; 在用户终端的 下行业务从第一网络分流到第二网络时, 根据获取的地址, 将目的地址是 用户终端在第一网络的 IP地址的 IP报文封装为第二网络媒体接入层对应 格式的报文后经第二网络传输至用户终端, 这样由于没有改变用户应用绑 定的 IP地址, 因此能够实现下行业务从第一网络到第二网络的无缝切换, 避免了用户应用不必要的中断以及重启问题, 提升了用户体验。 附图说明
图 1是现有技术中独立基本服务集示意图;
图 2是现有技术中基本服务集示意图;
图 3是本发明实施例一中分流数据传输方法的流程示意图;
图 4是本发明实施例二中分流数据传输方法的流程示意图;
图 5是本发明实施例二中封装后报文的格式示意图;
图 6是本发明实施例三中的分流数据传输设备结构示意图。 具体实施方式
下面结合附图和实施例, 对本发明的具体实施方式做进一步描述。 以 下实施例仅用于说明本发明, 但不用来限制本发明的范围。
实施例一
本实施例中提供了一种分流数据传输方法, 如图 3 中所示, 主要包括 步骤:
步骤 11: 获取用户终端在第一网络的 IP地址, 例如本实施例为 IP1; 步骤 12: 获取用户终端对应第二网络的接入模块的物理地址, 例如, 本实施例为 MAC 2;
步骤 13: 当用户数据流由于某些原因, 例如网络堵塞或者信噪比过低 等, 用户终端的下行业务从第一网络分流到第二网络时, 根据获取的上述 IP地址和物理地址, 将目的地址是用户终端在第一网络的 IP地址的 IP报 文封装为第二网络的媒体接入层对应格式的报文;
步骤 14: 将封装为第二网络媒体接入层对应格式的报文传输至用户终 端。
上述第一网络和第二网络可以是第一网络为蜂窝网络, 第二网络为无 线局域网络, 也可以是第一网络和第二网络为不同的两种蜂窝网络等; 上 述蜂窝网络可以是: 长期演进(Long Term Evolution, LTE ) 网络、 全球 移动通信系统 ( Global System for Mob i 1 eCommun i ca t i ons , GSM ) 网络、 通用分组无线业务 ( General Packet Radio Service, GPRS ) 网络、 码分 多址( Code Division Multiple Access, CDMA )网络、宽带码分多址( Wideband Code Division Multiple Access, WCDMA ) 网络、 时分同步码分多址( Time Divis ion-Synchronous Code Division Multiple Access, TD-SCDMA ) 网 络等等等;上述无线局域网可以基于 IEEE802. lib协议、 IEEE802.11a协议、 IEEE802. llg协议、 IEEE802.11E 协议、 IEEE802.11 i协议、 无线应用协议
(WAP)等等, 本实施例中无线局域网为基于 IEEE 802. 11系列协议的 WiFi
(Wireless Fidelity ) 网络。
本实施例中所提供的分流数据传输方式中, 由于没有改变用户应用绑 定的 IP地址即 IP2, 因此能够实现下行业务从第一网络到第二网络的无缝 切换, 避免了用户应用不必要的中断以及重启问题, 提升了用户体验。
实施例二
本实施例中以第一网络为 LTE网络, 第二网络为 WiFi网络为例对本发 明所提供的分流数据方法加以详细说明。
由于多业务数据网关 MSG通常是异构网络的一个业务汇聚点, 因此, 本实施例中可以将分流数据设备集成在分组多业务数据网关 MSG 中; 由于 本实施例中第一网络为 LTE网络, 第二网络为 WiFi网络, 因此, 用户终端 UE的第一网络接入模块为 LTE模块, 用户终端 UE的第二网络接入模块为 WiFi模块。
如图 4中所示, 用户终端分别接入 LTE网络和 WiF i网络, 在 LTE网络 中拥有 IP地址 LTE-IP, 在 WiFi网络中拥有 IP地址 WiF i_IP; 同时, 用户 终端在 LTE网络中的接入模块, 即 LTE模块的物理地址为 MAC1, 用户终端 在 WiFi网络中的接入模块, 即 WiFi模块的物理地址为 MAC2。
用户应用 (APP )首先在 LTE网络中釆用 LTE-IP, 经过多业务数据网关 进行通信(包括上行链路 Upl ink和下行链路 Downl ink )0 在此多业务数据 网关中集成有分流数据传输设备, 该分流数据传输设备可以获取用户终端 在 LTE网络中的 IP地址 LTE-IP、 用户终端的 LTE模块的物理地址 MAC1、 用户终端在 WiFi网络中的 IP地址 WiFi-IP、 用户终端的 WiFi模块的物理 地址 MAC2, 并将获取的地址信息绑定, 保存为用户通信地址信息绑定表。
当用户数据流由于某些原因, 例如当前 LTE 网络出现堵塞或者信噪比 过低等因素, 用户终端的某应用的下行业务从 LTE网络分流到 WiFi网络, 此时, 分流数据传输设备将根据上述保存的用户通信地址信息绑定表, 将 接收到的目的地址为 LTE-IP地址的 IP报文封装为第二网络媒体接入层对 应格式的报文。 本发明中提供了一种具体的封装方法, 其可以是在目的地 址是用户终端在第一网络的 IP地址的 IP报文前增加以用户终端第二网络 接入模块的物理地址为目标地址的媒体接入层包头; 具体到本实施例中, 即在接收到的目的地址为 LTE-IP地址的 IP 文前增加以 MAC2为目的地址 的 MAC包头。 最终得到的封装后的报文的详细格式如图 5 中所示, 在封装 后的报文中, MAC2作为目标用户终端网络接入模块的地址, WiFi-IP作为 用户应用的接收地址, IP报文作为净荷(PayLoad )。
然后,将封装为 WiFi网络媒体接入层对应格式的报文传输至用户终端; 例如, 可以通过第二层隧道 ( L2TP , Layer Two Tunne l ing Protocol )和 第二层转发 ( L2F , Leve l 2 Forwarding protocol ), 将第二网络媒体接入 层对应格式的报文传输至用户终端。 最后, 用户终端的第二网络接入模块接收所述封装为第二网络媒体接 入层对应格式的报文; 对所述封装为第二网络媒体接入层对应格式的报文 进行去封装; 按照用户终端在第一网络的 IP地址将去封装后的报文传送至 上层应用; 具体到本实施例中, 即用户终端 UE的 WiFi模块根据物理地址 MAC2接收封装为 WiFi 网络媒体接入层对应格式的报文后, 对封装为 WiFi 网络媒体接入层对应格式的报文进行去封装, 发现该报文应该是传送到目 标地址 LTE-IP的, 则按照用户的 LTE-IP地址将去封装后的报文传送至上 层应用。 需要注意的是, 用户终端的反向路径过滤功能需要被禁用, 否则 接收到的报文将会被丟弃。
本实施例中所提供的分流数据传输方式中, 由于没有改变用户应用绑 定的 IP地址即 LTE-IP , 因此能够实现下行业务从 LTE网络到 WiFi网络的 无缝切换, 避免了用户应用不必要的中断以及重启问题, 提升了用户体验。
实施例三
本实施例中提供了一种分流数据传输设备, 如图 6中所示, 主要包括: 地址获取模块: 用于获取用户终端在第一网络的 IP地址, 以及, 获取 用户终端第二网络接入模块的物理地址;
封装传输模块: 用于在用户终端的下行业务从第一网络分流到第二网 络时,根据获取的地址, 将目的地址是用户终端在第一网络的 IP地址的 IP 报文封装为第二网络媒体接入层对应格式的报文后经第二网络传输至用户 终端。
由于多业务数据网关 MSG通常是异构网络的一个业务汇聚点, 因此, 本实施例中可以将分流数据设备集成在分组多业务数据网关 MSG中。
本实施例中还提供了一种对应上述分流数据传输设备的用户终端, 除 了包括第一网络接入模块之外, 还包括: 第二网络接入模块, 设置为接收 封装为第二网络的媒体接入层对应格式的报文; 去封装模块, 与第二网络 接入模块相连, 设置为对该第二网络的接入模块接收的封装为第二网络的 媒体接入层对应格式的报文进行去封装, 得到 IP报文, 其中, 该 IP报文 的目的地址是该用户终端在第一网络的 IP地址; 报文传送模块, 设置为按 照该第一网络的 IP地址将去封装后的报文传送至上层应用。 并且, 所述用 户终端的反向路径过滤功能为可禁用的。
本发明实施例还提供了一种分流数据传输系统, 包括上述分流数据传 输设备和所述用户终端。
通过上述分流数据传输设备和用户终端的配合, 可以实现下行业务从 第一网络到第二网络的无缝切换, 避免了用户应用不必要的中断以及重启 问题, 提升了用户体验。
以上实施方式仅用于说明本发明, 而并非对本发明的限制, 有关技术 领域的普通技术人员, 在不脱离本发明的精神和范围的情况下, 还可以做 出各种变化和变型, 因此所有等同的技术方案也属于本发明的保护范畴。

Claims

权利要求
1、 一种分流数据传输方法, 包括:
获取用户终端在第一网络的 IP地址;
获取用户终端对应第二网络的接入模块的物理地址;
在用户终端的下行业务从第一网络分流到第二网络时, 根据获取的所 述 IP地址和所述物理地址, 将目的地址是所述第一网络的 IP地址的 IP报 文封装为所述第二网络的媒体接入层对应格式的报文;
将封装后的所述报文经所述第二网络传输至所述用户终端。
2、 根据权利要求 1所述的分流数据传输方法, 其中, 所述将目的地址 是所述第一网络的 IP地址的 IP报文封装为所述第二网络的媒体接入层对 应格式的报文包括:
在所述目的地址是所述第一网络的 IP地址的 IP报文前增加以所述用 户终端对应第二网络的接入模块的物理地址为目标地址的媒体接入层包 头。
3、 根据权利要求 1所述的分流数据传输方法, 其中, 所述将封装后的 所述报文经所述第二网络传输至所述用户终端包括:
将封装后的所述报文通过第二层隧道和 /或第二层转发至所述用户终 端。
4、根据权利要求 1-3任意一项所述的分流数据传输方法,其特征在于, 所述第一网络为蜂窝网络, 第二网络为无线局域网络。
5、 一种分流数据传输方法, 包括:
用户终端通过对应第二网络的接入模块接收封装为第二网络的媒体接 入层对应格式的报文; 其中, 所述用户终端的反向路径过滤功能被禁用; 所述用户终端对所述封装为第二网络的媒体接入层对应格式的报文进 行去封装, 得到 IP报文, 其中, 所述 IP报文的目的地址是所述用户终端 在第一网络的 IP地址;
所述用户终端按照所述第一网络的 IP地址将去封装后的报文传送至上 层应用。
6、 根据权利要求 5所述的分流数据传输方法, 其中, 所述第一网络为 蜂窝网络, 第二网络为无线局域网络。
7、 一种分流数据传输设备, 包括:
地址获取模块, 设置为获取用户终端在第一网络的 IP地址, 以及, 获 取用户终端对应第二网络的接入模块的物理地址;
封装传输模块, 设置为在所述用户终端的下行业务从第一网络分流到 第二网络时, 根据所述地址获取模块获取的所述 IP地址和所述物理地址, 将目的地址是所述第一网络的 IP地址的 IP报文封装为所述第二网络的媒 体接入层对应格式的报文, 将封装后的所述报文经所述第二网络传输至所 述用户终端。
8、 根据权利要求 7所述的分流数据传输设备, 其中, 所述分流数据传 输设备集成在多业务数据网关。
9、 一种用户终端, 所述用户终端的反向路径过滤功能被禁用, 所述用 户终端包括:
第二网络接入模块, 设置为接收封装为第二网络的媒体接入层对应格 式的报文;
去封装模块, 设置为对所述第二网络的接入模块接收的封装为第二网 络的媒体接入层对应格式的报文进行去封装, 得到 IP报文, 其中, 所述 IP 报文的目的地址是所述用户终端在第一网络的 IP地址;
报文传送模块, 设置为按照所述第一网络的 IP地址将去封装后的报文 传送至上层应用。
10、 一种分流数据传输系统, 包括权利要求 7或 8所述的分流数据传 输设备和权利要求 9所述的用户终端。
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CN103338482A (zh) * 2013-07-24 2013-10-02 成都西加云杉科技有限公司 分流数据传输方法、传输设备以及用户终端

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