WO2011012022A1 - 基站接口控制器、基站级联传输系统及级联传输方法 - Google Patents

基站接口控制器、基站级联传输系统及级联传输方法 Download PDF

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Publication number
WO2011012022A1
WO2011012022A1 PCT/CN2010/073620 CN2010073620W WO2011012022A1 WO 2011012022 A1 WO2011012022 A1 WO 2011012022A1 CN 2010073620 W CN2010073620 W CN 2010073620W WO 2011012022 A1 WO2011012022 A1 WO 2011012022A1
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data
base station
configuration
cascading
data packet
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PCT/CN2010/073620
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English (en)
French (fr)
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黄钧
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中兴通讯股份有限公司
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Publication of WO2011012022A1 publication Critical patent/WO2011012022A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information

Definitions

  • the present invention relates to the field of communications, and in particular, to a transmission system and method for data transmission.
  • BACKGROUND With the rapid development of the communication field, the current base station transmission faces the coexistence of several different transmission media such as Ethernet, ATM, and El. More and more base stations have already fulfilled the function of simultaneous access, that is, they have already met multiple transmission media such as Ethernet, ATM, and El, but when the base station is cascaded, it can only be used as the same transmission medium. Cascading, therefore, when the base station cascades the network, the requirements for networking flexibility are not fully met.
  • the existing base station transmission resources have the problems of high market pressure and high transmission cost.
  • the technical problem to be solved by the present invention is to provide a base station cascade transmission system supporting a plurality of transmission medium networks with low cost and flexible networking requirements. Accordingly, a base station interface controller supporting a plurality of transmission media for flexible networking is provided, and a base station level supporting a plurality of transmission medium networks that meets flexible networking requirements is also provided. Joint transmission method.
  • a base station cascade transmission system including a base station interface controller, the base station interface controller includes a data communication interface, a data configuration interface, a data arbitration module, and a data conversion module;
  • the configuration interface the forwarding judgment configuration is obtained and transmitted to the data arbitration module;
  • the data arbitration module identifies the cascading data packet and the transmission medium mode required for the next-level transmission of the cascading data packet according to the forwarding judgment configuration;
  • the module converts the concatenated data packet into a frame format, and the converted concatenated data packet is sent by the data communication interface corresponding to the transmission medium mode.
  • a base station interface controller includes a data communication interface and a data configuration interface, a data arbitration module, and a data conversion module;
  • the data configuration interface acquires a forwarding judgment configuration and transmits the data to the data arbitration module;
  • the data arbitration module identifies the cascading data packet and the transmission medium mode required for the next-level transmission of the cascading data packet according to the forwarding judgment configuration;
  • the data conversion module converts the cascading data packet into a frame format, and
  • the data communication interface corresponding to the transmission medium mode transmits the converted concatenated data packet.
  • a cascading transmission method for a base station supporting multiple transmission media includes the following steps:
  • the data configuration interface acquires a forwarding judgment configuration;
  • the data arbitration module identifies the cascading data packet and the cascading data packet next level according to the forwarding judgment configuration
  • the transmission medium mode required for transmission includes the data conversion module converts the concatenated data packet into a frame format; and transmits the converted concatenated data packet by a data communication interface corresponding to the transmission medium mode.
  • the beneficial effects of the present invention are as follows:
  • the base station cascade transmission system implements the base station cascade transmission method by applying the base station interface controller, fully utilizes the function of the base station interface controller to simultaneously access multiple transmission media, and identifies the cascade data through the data arbitration module.
  • FIG. 1 is a schematic diagram of a base station cascade transmission system according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a base station interface controller according to an embodiment of the present invention
  • FIG. 3 is a base station cascade according to an embodiment of the present invention
  • a base station cascade transmission system supporting multiple transmission media including a base station interface controller 1, the base station interface controller includes a data communication interface 101, a data configuration interface 103, and data.
  • the data communication interface 101 includes a plurality of standard physical physical interfaces, including but not limited to an ATM interface, a PPP interface, an ETH interface, an Ethernet interface, a POS interface, an E1 interface, etc., respectively.
  • the ATM transmission medium, the PPP transmission medium, the ETH transmission medium, the Ethernet transmission medium, the POS transmission medium, the E1 transmission medium, and the like can be simultaneously accessed, so that the data packet enters and exits the base station, and therefore, the data communication interface 101 is a channel for the data packet to enter and exit the base station. .
  • the data communication interface 101 removes the communication interface encapsulation of the data frame and composes the data packet, and together with the status information of the data packet.
  • the data arbitration module 102 caches; in the data transmission direction (as indicated by the direction arrow B in FIG.
  • the data conversion module 104 extracts the data packet from the data arbitration module, converts the data packet into a frame format and adds corresponding
  • the communication interface corresponding to the transmission medium, the data frame with the communication interface encapsulation can be sent out through the corresponding data communication interface of the transmission medium.
  • the data configuration interface 103 is configured to obtain a forwarding judgment configuration for the data packet from the control plane of the base station, and the content includes but is not limited to: the cascading state of the base station when cascading, the transmission medium mode used during cascading, and whether the data packet is classified as a level. Linked packet policies, congestion control strategies, etc.
  • the cascading state of the base station refers to the transmission medium used in the upper stage of the cascading data packet, and the transmission medium mode used in cascading refers to the transmission required for the next cascading data packet.
  • Media, congestion control policy refers to whether the sending port needs to limit current.
  • the data configuration interface 103 dynamically configures the resulting forwarding decision configuration into the data arbitration module 102.
  • the data arbitration module 102 distinguishes the data packet sent by the data communication interface 101 according to the forwarding judgment configuration, determines whether the data packet is sent to the cascade base station or the base station, and if it is sent to the cascade base station, determines the data.
  • the packet will be sent by the corresponding data communication interface 101 of the transmission medium network, and tampering according to the transmission protocol ⁇ : related packet header. If it is sent to the base station, it is processed by the base station.
  • the data conversion module 104 is configured to convert the data packet sent by the data arbitration module 102 from the buffer queue of the module into a frame format according to the requirements of the data communication interface corresponding to the transmission medium required for forwarding the data packet, and pass the data.
  • the communication interface 101 transmits. As shown in FIG.
  • a method for cascading transmission of a base station supporting multiple transmission media includes the following steps Step S1: The data configuration interface obtains the forwarding judgment configuration; Step S2: The data arbitration module identifies the cascading data packet and the transmission medium mode required for the next level transmission of the cascading data packet according to the forwarding judgment configuration; S3: The data conversion module converts the concatenated data packet into a frame format; Step S4: transmitting the converted concatenated data packet by a corresponding data communication interface. Specifically, as shown in FIG.
  • Step S11 Receive a data frame
  • the data communication interface 101 of the network communication security processor includes The ATM interface, the PPP interface, the ETH interface, the Ethernet interface, the POS interface, and the E1 interface respectively receive data frames transmitted from the ATM interface, the PPP interface, the ETH interface, the Ethernet transmission medium, the POS transmission medium, and the E1 transmission medium.
  • the format of the data frame is different for the data communication interface corresponding to different transmission media.
  • Step S12 Unpacking and assembling into a data packet, after receiving the data frame of various formats, the data communication interface first performs corresponding un-communication interface encapsulation, and cancels the data frame encapsulated by the communication interface to form a data packet.
  • the data communication interface After forming a complete data packet, the data communication interface stores it in the cache of the data arbitration module, and rewrites the status information of the data packet into and out of the data packet.
  • the status information includes the length of the data packet and its dual port buffer in and out of the data packet.
  • the data arbitration module parses the format of the data packet according to the forwarding judgment configuration, and determines whether the data packet is a concatenated data packet that needs to be forwarded or a data packet processed by the local base station.
  • Step S14 The data packet processed by the base station is processed by the base station data processing flow.
  • Step S15 For the data packet to be forwarded, determine the data communication interface corresponding to the transmission medium used for transmitting the data packet according to the forwarding judgment configuration, and configure the data packet to be cascaded to replace the packet header to be modified by the network layer. For example, you need to modify the IP address and so on.
  • Step S16 The data conversion module converts the data packet to be forwarded into a frame format according to the requirement of the data communication interface corresponding to the transmission medium required for the data packet to be forwarded. For example, the data packet may be encapsulated in an HDLC frame format or a mac. Head frame format package, etc.
  • Step SI 7 Determine whether the data communication interface needs to perform current limiting control according to the congestion control policy in the forwarding judgment configuration.
  • the data communication interface determines whether the current data frame to be sent needs to be discarded. Step S18: The data communication interface discards the data frame that needs to be discarded. Step S19: The data communication interface sends the data frame that can be sent.
  • the base station cascade transmission system of the present embodiment implements a base station cascade transmission method by applying a base station interface controller, and fully utilizes the function of the base station interface controller simultaneously accessing multiple transmission media, and identifies the cascaded data packet through the data arbitration module and the The transmission medium mode required for the next-level transmission of the cascading data packet, so that the cascading of the base station is no longer limited to the cascading of the same medium (such as the cascading transmission system of the base station in FIG. 1 , which realizes cascading of different transmission media)
  • the conversion requirement for the transmission access is reduced, the flexible requirements of the networking are met, the complexity of the transmission network planning is reduced, and the cost of the networking is reduced.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Communication Control (AREA)

Description

基站接口控制器、 基站级联传输系统及级联传输方法 技术领域 本发明涉及通讯领域, 尤其涉及数据传输的传输系统及方法。 背景技术 随着通讯领域的快速发展, 当前的基站传输面临着以太网、 ATM、 El 等几种不同传输介质共存的情况。 越来越多的基站已经满足了同时接入的功 能, 即已经满足了同时接入以太网、 ATM、 El等多种传输介质, 但是在基站 级联时, 还是只能作同种传输介质的级联, 因此在基站级联组网时, 未充分 满足组网灵活性的要求。 目前, 现有的基站传输资源存在市场压力大、 传输成本高的问题, 如第 200610008258.1号中国专利申请的是对 ATM、 以太网传输的一种转换装置, 该装置需要专用设备来完成数据的转换; 并且也不支持 E1接入的转换功能, 使用这种设备必然带来成本的增加。 发明内容 本发明所要解决的技术问题是提供一种低成本、 满足灵活组网要求的支 持多种传输介质网络的基站级联传输系统。 相应地, 还提供一种低成本, 用 于灵活组网的支持多种传输介质的基站接口控制器, 及还提供一种低成本、 满足灵活组网要求的支持多种传输介质网络的基站级联传输方法。 本发明为解决其技术问题所采用的技术方案是:一种基站级联传输系统, 包括基站接口控制器, 该基站接口控制器包括数据通信接口、数据配置接口、 数据仲裁模块和数据转换模块; 据配置接口获取转发判断配置并传送给数据 仲裁模块; 数据仲裁模块才艮据该转发判断配置识别出级联数据包及该级联数 据包下一级传输所需用的传输介质模式; 数据转换模块将该级联数据包转换 成帧格式, 并由该传输介质模式对应的数据通信接口发送经转换的级联数据 包。 一种基站接口控制器, 包括数据通信接口和数据配置接口、 数据仲裁模 块和数据转换模块;数据配置接口获取转发判断配置并传送给数据仲裁模块; 数据仲裁模块才艮据该转发判断配置识别出级联数据包及该级联数据包下一级 传输所需用的传输介质模式; 数据转换模块将该级联数据包转换成帧格式, 并由该传输介质模式对应的数据通信接口发送经转换的级联数据包。 一种支持多种传输介质的基站级联传输方法, 包括如下步骤: 数据配置接口获取转发判断配置; 数据仲裁模块根据该转发判断配置, 识别出级联数据包及该级联数据包 下一级传输所需用的传输介质模式; 数据转换模块将该级联数据包转换成帧格式; 将经转换的级联数据包由该传输介质模式对应的数据通信接口发送。 本发明的有益效果是: 基站级联传输系统通过应用基站接口控制器实现 基站级联传输方法,充分利用基站接口控制器同时接入多种传输介质的功能, 通过数据仲裁模块识别出级联数据包及该级联数据包下一级传输所需用的传 输介质模式, 使基站级联不再局限于同种介质的级联, 降低了对传输接入的 转换要求, 满足了组网灵活的要求, 同时也降低了传输网络规划的复杂度, 降低了组网的成本。 附图说明 图 1为本发明一种实施方式的基站级联传输系统的示意图; 图 2为本发明一种实施方式的基站接口控制器示意图; 图 3为本发明一种实施方式的基站级联传输方法的基本流程图; 图 4为本发明一种实施方式的基站级联传输方法的具体流程图。 具体实施方式 如图 1和图 2所示, 一种支持多种传输介质的基站级联传输系统, 包括 基站接口控制器 1 , 该基站接口控制器包括数据通信接口 101、 数据配置接 口 103、 数据仲裁模块 102和数据转换模块 104; 数据配置接口 103用于得 到转发判断配置并将转发判断配置传输至数据仲裁模块 102; 数据仲裁模块 102 用于根据转发判断配置判断其接收的数据包是级联数据包还是本基站数 据包; 若为级联数据包, 则进一步判断转发级联数据包需要用的传输介质模 式; 若为本基站数据包, 则交由本基站处理; 数据转换模块 104用于根据传 输介质模式将级联数据包转换成帧格式, 并将转换后的数据包交由该传输介 质对应的数据通信接口 101的发送队列发送。 具体地说, 本实施方式中, 数据通信接口 101包括多个标准的实体物理 接口, 其中, 包括但不限于 ATM接口、 PPP接口、 ETH接口、 以太网接口、 POS接口、 E1接口等, 相应地可以同时接入 ATM传输介质、 PPP传输介质、 ETH传输介质、 以太网传输介质、 POS传输介质、 E 1传输介质等, 以便数 据包进出基站, 因此, 数据通信接口 101是数据包进出基站的通道。 在数据 接收方向上(如图 1中方向箭头 A所示), 数据通信接口 101收到数据帧后, 去除数据帧的通信接口封装并组成数据包, 并将数据包连同数据包的状态信 息一同存入数据仲裁模块 102緩存; 在数据发送方向上 (如图 1中方向箭头 B所示:), 数据转换模块 104从数据仲裁模块中取出数据包, 将数据包转换成 帧格式并加上相应的传输介质对应的通信接口封装, 带有通信接口封装的数 据帧就可以通过相应的传输介质对应的数据通信接口发送出去。 数据配置接口 103用于从基站的控制面得到关于数据报文的转发判断配 置, 内容包括但不限于: 级联时基站级联状态、 级联时所用的传输介质模式、 区分数据包是否为级联数据包的策略、 拥塞控制策略等。 需要说明的是, 级 联时基站级联状态指的是级联数据包的上一级所用的传输介质, 级联时所用 的传输介质模式指的是级联数据包下一级需要用的传输介质, 拥塞控制策略 指的是发送端口是否要做限流。 数据配置接口 103将得到的转发判断配置动 态地配置给数据仲裁模块 102中。 数据仲裁模块 102根据转发判断配置来区分数据通信接口 101送过来的 数据包, 判断数据包是发送给级联基站的还是发送给本基站的, 如果是发送 给级联基站的, 则判断该数据包将通过哪种传输介质网络对应的数据通信接 口 101发送, 并按传输协议^:相关的包头爹改。 如果是发送给本基站的, 则 由本基站处理。 数据转换模块 104用于从本模块緩存队列中将数据仲裁模块 102送来的 数据包按照转发该数据包所需用的传输介质对应的数据通信接口的要求转换 成帧格式, 使之通过该数据通信接口 101发送。 如图 3所示, 一种支持多种传输介质的基站级联传输方法, 包括如下步 骤: 步骤 SI :数据配置接口获取转发判断配置; 步骤 S2:数据仲裁模块根据该转发判断配置, 识别出级联数据包及该级 联数据包下一级传输所需用的传输介质模式; 步骤 S3:数据转换模块将该级联数据包转换成帧格式; 步骤 S4:将经转换的级联数据包由对应的数据通信接口发送。 具体地, 如图 4所示, 对于进入本实施方式基站级联传输系统的数据, 该系统数据处理方法的具体流程如下: 步骤 S11 : 接收数据帧, 网络通信安全处理器的数据通信接口 101 包括 ATM接口、 PPP接口、 ETH接口、 以太网接口、 POS接口、 E1接口等分别 接收来自包括 ATM接口、 PPP接口、 ETH接口、 以太网传输介质、 POS传 输介质、 E1传输介质等传输过来的数据帧。 对于不同传输介质对应的数据通 信接口来说, 数据帧的格式不同。 步骤 S12:拆封组装成数据包,数据通信接口接收到各种格式的数据帧后, 先进行相应的解除通信接口封装,将解除通信接口封装的数据帧组成数据包。 数据通信接口在组成一个完整的数据包后,把它存入数据仲裁模块的緩存中, 并改写进出数据包緩存的状态信息, 该状态信息包括数据包的长度及其在进 出数据包双口緩存中的存储地址及数据包处理的状态等。 步骤 S13: 数据仲裁模块根据转发判断配置中解析数据包格式, 判断数 据包是需要转发的级联数据包还是本基站处理的数据包。 步骤 S14: 对本基站处理的数据包, 由基站数据处理流程处理。 步骤 S15: 对需要转发的数据包, 按转发判断配置判断发送数据包所需 用的传输介质对应的数据通信接口, 并且将数据包按级联配置, 替换网络层 转发所需要修改的报文头, 例如, 需要修改 IP地址等。 步骤 S16: 数据转换模块根据需要转发的数据包所需用的传输介质对应 的数据通信接口的要求, 将需要转发的数据包转换成帧格式, 例如, 可将数 据包以 HDLC帧格式封装或 mac头帧格式封装等。 步骤 SI 7: 根据转发判断配置中的拥塞控制策略, 判断数据通信接口是 否要做限流控制。 如果做限流控制, 数据通信接口判断当前待发送的数据帧 是否需要丟弃。 步骤 S 18: 数据通信接口将需要丟弃的数据帧丟弃。 步骤 S19: 数据通信接口将可以发送的数据帧发送。 本实施方式的基站级联传输系统通过应用基站接口控制器实现基站级联 传输方法, 充分利用基站接口控制器同时接入多种传输介质的功能, 通过数 据仲裁模块识别出级联数据包及该级联数据包下一级传输所需用的传输介质 模式, 使基站级联不再局限于同种介质的级联 (如图 1 中的基站级联传输系 统, 实现了不同传输介质级联), 降低了对传输接入的转换要求, 满足了组网 灵活的要求, 同时也降低了传输网络规划的复杂度, 降低了组网的成本。 以上内容是结合具体的实施方式对本发明所作的进一步详细说明, 不能 认定本发明的具体实施只局限于这些说明。 对于本发明所属技术领域的普通 技术人员来说, 在不脱离本发明构思的前提下, 还可以做出若干简单推演或 替换, 都应当视为属于本发明的保护范围。

Claims

权 利 要 求 书
1. 一种基站级联传输系统, 包括基站接口控制器, 其特征在于: 所述基 站接口控制器包括数据通信接口、 数据配置接口、 数据仲裁模块和数 据转换模块; 所述数据配置接口获取转发判断配置并传送给所述数据 仲裁模块; 所述数据仲裁模块根据该转发判断配置识别出级联数据包 及该级联数据包下一级传输所需用的传输介质模式; 所述数据转换模 块将该级联数据包转换成帧格式, 并由该传输介质模式对应的数据通 信接口发送经转换的级联数据包。
2. 根据权利要求 1 所述的基站级联传输系统, 其特征在于: 所述转发判 断配置动态地配置给所述数据仲裁模块。
3. 根据权利要求 1或 2所述的基站级联传输系统, 其特征在于: 所述转 发判断配置包括基站级联状态、 级联时所用的传输介质模式、 区分数 据包是否为级联转发数据包的策略。
4. 根据权利要求 3所述的基站级联传输系统, 其特征在于: 所述转发判 断配置还包括拥塞控制策略, 用于数据通信接口发送数据帧时进行限 流处理。
5. 一种基站接口控制器, 其特征在于: 包括数据通信接口、 数据配置接 口、 数据仲裁模块和数据转换模块; 所述数据配置接口获取转发判断 配置并传送给所述数据仲裁模块; 所述数据仲裁模块根据该转发判断 配置识别出级联数据包及该级联数据包下一级传输所需用的传输介质 模式; 所述数据转换模块将该级联数据包转换成帧格式, 并由该传输 介质模式对应的数据通信接口发送经转换的级联数据包。
6. 一种基站级联传输方法, 其特征在于包括如下步骤:
61 )数据配置接口获取转发判断配置;
62 ) 数据仲裁模块根据该转发判断配置, 识别出级联数据包及该级 联数据包下一级传输所需用的传输介质模式;
63 )数据转换模块将该级联数据包转换成帧格式; 64 ) 将经转换的级联数据包由该传输介质模式对应的数据通信接口 发送。
7. 根据权利要求 6所述的基站级联传输方法, 其特征在于: 于步骤 61 ) 之前, 还包括如下步骤: 数据通信接口接收数据帧后, 将数据帧的通 信接口封装解除, 并将已解除通信接口封装的数据帧组成数据包存入 数据仲裁模块中。
8. 根据权利要求 6所述的基站级联传输方法, 其特征在于: 于步骤 63 ) 和 64 )之间, 还包括如下步骤: 数据通信接口发送数据帧时决定是否 进行限流处理。
9. 根据权利要求 6至 8 中任意一项所述的基站级联传输方法, 其特征在 于: 所述数据配置接口获取转发判断配置的具体过程是: 从基站的控 制面上获取。
10. 根据权利要求 6至 8 中任意一项所述的基站级联传输方法, 其特征在 于: 还包括如下步骤: 数据配置接口将获取的转发判断配置动态地配 置给所述数据仲裁模块。
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