WO2015096734A1 - 一种业务数据的下行传输方法及分组数据网关 - Google Patents

一种业务数据的下行传输方法及分组数据网关 Download PDF

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WO2015096734A1
WO2015096734A1 PCT/CN2014/094807 CN2014094807W WO2015096734A1 WO 2015096734 A1 WO2015096734 A1 WO 2015096734A1 CN 2014094807 W CN2014094807 W CN 2014094807W WO 2015096734 A1 WO2015096734 A1 WO 2015096734A1
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address
target terminal
gateway
lte
lte gateway
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PCT/CN2014/094807
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English (en)
French (fr)
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张旗
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大唐移动通信设备有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/74—Address processing for routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/02—Topology update or discovery
    • H04L45/021—Ensuring consistency of routing table updates, e.g. by using epoch numbers

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a downlink transmission method of service data and a packet data gateway.
  • LTE Long Term Evolution
  • 3G Third Generation
  • LTE wireless broadband consisting of LTE gateway, eNodeB (base station), EPC (Evolved Packet Core) core network
  • eNodeB base station
  • EPC Evolved Packet Core
  • the terminal connected by the LTE gateway actively sends a service request to the server connected to the core network side.
  • the server knows the IP address (Internet Protocol) address of the target terminal. That is, it can be determined that the service data is to be sent to that terminal, and any terminal connected to the LTE gateway can implement the interaction with the server by the above method.
  • IP address Internet Protocol
  • Step a The server A sends a message carrying the service data to the P-GW (PDN GW, Packet Data Network, PDN (Packet Data Network)), where the message further includes an LTE gateway connected to the target terminal B.
  • P-GW Packet Data Network
  • PDN Packet Data Network
  • Step b The packet data gateway sets the number of services according to the IP address of the LTE gateway carried in the message. According to the eNode B, it is sent to the LTE gateway;
  • Step c The LTE gateway forwards the received service data to the terminal B connected to the gateway.
  • the destination address can only fill in the IP address of the LTE gateway connected to the target terminal. Therefore, the foregoing process is only applicable to the case where one LTE gateway is connected to only one terminal. .
  • an LTE gateway is connected to multiple terminals.
  • the message that the server sends the service data can only carry the LTE gateway connected to the target terminal. IP address.
  • the LTE gateway does not know which terminal to connect to the gateway. Therefore, in the prior art, when the LTE gateway is connected to multiple terminals, the server cannot Actively transmit downlink service data to the terminal.
  • the embodiment of the present invention provides a downlink transmission method of a service data and a packet data gateway gateway, which are used to solve the problem that the server in the prior art cannot actively transmit service data to a terminal in an LTE gateway that connects multiple terminals.
  • the first aspect provides a downlink transmission method of service data, including:
  • the receiving, by the receiving server, the service message includes:
  • UDP User Datagram Protocol
  • TCP Transmission Control Protocol
  • a second possible implementation manner receiving a configuration message that is sent by the network management system NMS and carrying configuration routing table information;
  • the association routing relationship is included in the configuration routing table information.
  • the receiving, by the NMS, the configuration message that carries the configuration routing table information includes:
  • the configuration message that carries the configuration routing table information sent by the NMS based on the Simple Network Management Protocol (SNMP) is received.
  • the IP address of the Long Term Evolution (LTE) gateway associated with the target terminal is determined from the locally stored association relationship according to the IP address of the target terminal, specifically including :
  • An IP address of the LTE gateway associated with the target terminal is determined from the IP address segment.
  • a packet data gateway including:
  • a receiving unit configured to receive a service message sent by the server, where the service message carries the service data and an internet protocol IP address of the target terminal;
  • a routing unit configured to determine, according to an IP address of the target terminal, an IP address of a Long Term Evolution (LTE) gateway associated with the target terminal, where the association relationship is an IP address of the LTE gateway. The association between the address and the IP address of the associated terminal;
  • LTE Long Term Evolution
  • a sending unit configured to send the service message to an LTE gateway corresponding to the determined IP address of the LTE gateway, so that the LTE gateway sends the service data to a target corresponding to an IP address of the target terminal terminal.
  • the receiving unit receives a service message sent by a server, specifically:
  • UDP User Datagram Protocol
  • TCP Transmission Control Protocol
  • the routing unit is in a locally stored association relationship according to an IP address of the target terminal. Before determining the IP address of the LTE gateway associated with the target terminal, it is also used to:
  • the association routing relationship is included in the configuration routing table information.
  • the routing unit receives the configuration message that is sent by the NMS and carries the configuration routing table information, specifically:
  • the configuration message that carries the configuration routing table information sent by the NMS based on the Simple Network Management Protocol (SNMP) is received.
  • the routing unit determines, according to the IP address of the target terminal, a long-term evolution LTE gateway associated with the target terminal from a locally stored association relationship.
  • IP address specifically:
  • An IP address of the LTE gateway associated with the target terminal is determined from the IP address segment.
  • the destination IP address of the data packet sent by the server can only be the IP address of the LTE gateway, and therefore, the LTE gateway is connected. There can be only one terminal. If there are multiple terminals, the LTE gateway does not know which terminal to send the received service data to. Therefore, when the LTE gateway is connected to multiple terminals, there is no server active.
  • a method for a terminal to transmit service data In the embodiment of the present invention, the service message sent by the server is first received, where the service message carries the service data and the IP address of the target terminal, and then determines from the locally stored association relationship according to the IP address of the target terminal.
  • An IP address of the LTE gateway associated with the target terminal where the association relationship is an association between an IP address of the LTE gateway and an IP address of the associated terminal, and then sending the service message to the determined LTE gateway
  • the LTE gateway corresponding to the IP address, so that the LTE gateway sends the service data to the target terminal corresponding to the IP address of the target terminal.
  • the server connected to the core network side needs to connect to the LTE gateway.
  • the target terminal sends the service data
  • the destination IP address of the data packet sent by the server may be the IP address of the target terminal.
  • the LTE gateway may receive according to the IP address of the target terminal.
  • the obtained service data is sent to the connected target terminal. Therefore, when the LTE gateway is connected to multiple terminals, the server can be the main A data transmission service to an arbitrary terminal.
  • FIG. 1A is a schematic structural diagram of an LTE wireless broadband network in the prior art
  • FIG. 1B is a flowchart of a server actively sending service data to a terminal in the prior art
  • FIG. 2 is a detailed flowchart of a server actively sending service data to a terminal according to an embodiment of the present invention
  • FIG. 3 is a first embodiment of a server actively transmitting service data to a terminal according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a function of a packet data gateway according to an embodiment of the present invention.
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association that describes an associated object, indicating that there can be three relationships, for example For example, A and/or B may indicate that A exists separately, and A and B exist simultaneously, and B cases exist alone.
  • the letter “/” in this article generally indicates that the contextual object is an "or" relationship.
  • a downlink transmission method of a service data and a packet data gateway are proposed, in which a LTE gateway is connected to multiple terminals, and the server can actively transmit service data to any one of the terminals.
  • the destination IP address of the data packet sent by the server may be the IP address of the target terminal.
  • the LTE gateway is based on The IP address of the target terminal can send the received service data to which terminal is connected. Therefore, when the LTE gateway is connected to multiple terminals, the server can actively transmit service data to any one terminal.
  • Step 200 Receive a service message sent by the server, where the service message carries the service data and an IP address of the target terminal.
  • Step 210 Determine, according to the IP address of the target terminal, an IP address of the LTE gateway associated with the target terminal from the locally stored association relationship, where the association relationship is an association relationship between the IP address of the LTE gateway and the IP address of the associated terminal.
  • Step 220 Send the service message to the LTE gateway corresponding to the determined IP address of the LTE gateway, so that the LTE gateway sends the service data to the target terminal corresponding to the IP address of the target terminal.
  • the method for receiving the service message sent by the server is different.
  • the server may receive the service message sent by the server based on the User Datagram Protocol (UDP), and for example, may receive the server based on the TCP (Transmission).
  • TCP Transmission Control Protocol
  • Control Protocol Transmission Control Protocol
  • the association relationship may be located in a configuration routing table, and the routing table may be configured. It can be sent by the NMS. In this way, before step 210, the following operations are also performed:
  • the configuration message of the configuration routing table sent by the NMS to the packet data gateway is not configured after the initial configuration. Unless the LTE gateway is newly added or the terminal under the LTE gateway is added, the NMS sends a configuration routing table to the packet data gateway. Configuration message.
  • association relationship may exist in the local form in other forms.
  • execution entity of the step 200-step 220 is a packet data gateway
  • the association relationship may exist in the packet data gateway in other forms.
  • the message carrying the association information may also be sent by other devices to the packet data gateway, and will not be described in detail herein.
  • the LTE wireless broadband transmission network includes two LTE gateways: LTE gateway A and LTE gateway B.
  • the IP address of the LTE gateway A is 192.168.20.10, and the IP addresses of the three terminals connected to the LTE gateway A are respectively
  • the IP addresses of the LTE gateway B are: 192.188.40.1, 182.188.50.1, and 182.188.60.9.
  • the IP addresses of the three terminals connected to the LTE gateway B are: 172.178.30.2 and 172.178.50.3. 172.178.60.9.
  • the association relationship included in the configuration routing table includes two mapping relationships.
  • the first group mapping relationship is the IP address 192.168.20.10 of the LTE gateway A, and the three terminals associated with the LTE gateway A are respectively configured.
  • the second set of mappings is the IP address of LTE gateway B 192.168.30.20, and the IP addresses corresponding to the three terminals associated with LTE gateway A: 172.178.30.2, 172.178.50.3, 172.178.60.9.
  • NMS Network Management System
  • SNMP Simple Network Management Protocol
  • the IP address of the target terminal there are various ways to determine the IP address of the Long Term Evolution (LTE) gateway associated with the target terminal from the locally stored association relationship, for example, Determining the IP address of the specified byte of the IP address of the target terminal, and finding the IP address segment of the LTE gateway corresponding to the IP address of the specified byte from the association relationship; determining the LTE associated with the target terminal from the IP address segment
  • LTE Long Term Evolution
  • the LTE gateway corresponding to the determined IP address of the LTE gateway is sent to the LTE gateway, the following information is further included:
  • Embodiment 1 is specifically as shown in FIG. 3:
  • the video monitoring server A is to transmit service data to the camera 1.
  • Step 300 The packet data gateway receives the configuration message sent by the NMS, and obtains a mapping relationship between the IP address of the LTE gateway and the IP address of the associated terminal.
  • Step 310 The video monitoring server A sends a service message to the packet data gateway.
  • the service message carries the service data for the camera 1 and the IP address 172.178.30.2 of the camera 1 corresponding to the service data.
  • Step 320 The packet data gateway determines the IP address of the associated LTE gateway 192.168.30.20 according to the IP address of the camera 1;
  • Step 330 The packet data gateway sends the foregoing service message to the LTE gateway according to the IP address 192.168.30.20 of the LTE gateway.
  • Step 340 The LTE gateway sends the service data for the camera 1 to the camera 1 corresponding to the IP address 172.178.30.2 according to the service message;
  • Step 350 The camera 1 feeds back the completed service data receiving message to the video monitoring server A through the packet data gateway.
  • One of the foregoing embodiments describes a case where service data is sent to one terminal of an LTE gateway.
  • service data is sent to one terminal of an LTE gateway.
  • an embodiment of the present invention further provides a packet data gateway, where the packet data gateway includes a receiving unit 400, a routing unit 410, and a sending unit 420, where
  • the receiving unit 400 is configured to receive a service message sent by the server, where the service message carries the service data and an IP address of the target terminal;
  • the routing unit 410 is configured to determine, according to the IP address of the target terminal, an IP address of the LTE gateway associated with the target terminal from the locally stored association relationship, where the association relationship is an IP address of the LTE gateway and an IP address of the associated terminal. Relationship
  • the sending unit 420 is configured to send the service message to the LTE gateway corresponding to the determined IP address of the LTE gateway, so that the LTE gateway sends the service data to the target terminal corresponding to the IP address of the target terminal.
  • the receiving unit 400 when receiving the service message sent by the server, is specifically: the service message sent by the receiving server based on UDP or TCP.
  • the routing unit 410 is further configured to: before determining the IP address of the LTE gateway associated with the target terminal from the locally stored association relationship according to the IP address of the target terminal:
  • the configuration routing information includes an association relationship.
  • the routing unit 410 receives the configuration message that carries the configuration routing table information sent by the NMS, specifically:
  • the routing unit 410 determines the IP address of the long-term evolution LTE gateway associated with the target terminal from the locally stored association relationship according to the IP address of the target terminal, specifically:
  • the IP address of the LTE gateway associated with the target terminal is determined from the IP address segment.
  • the service message sent by the server is received first, where
  • the service message carries the service data and the IP address of the target terminal, and then determines the IP address of the LTE gateway associated with the target terminal from the locally stored association relationship according to the IP address of the target terminal, where the association relationship is the IP address of the LTE gateway.
  • Correlating the address with the IP address of the associated terminal and then transmitting the service message to the LTE gateway corresponding to the determined IP address of the LTE gateway, so that the LTE gateway sends the service data to the target corresponding to the IP address of the target terminal.
  • the destination IP address of the data packet sent by the server may be the IP address of the target terminal, even if it is connected to the LTE gateway. If there are multiple terminals, the LTE gateway can send the received service data to which terminal is connected according to the IP address of the target terminal. Therefore, the LTE gateway can connect multiple terminals, and thus, when the LTE gateway is connected to multiple terminals, The server can actively transmit service data to any one terminal.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus functions in one or more blocks of a flow or a flow diagram and/or block diagram of a flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions in one or more blocks of the flowchart or in a flow or block of the flowchart.

Abstract

本发明涉及通信技术领域，公开了一种业务数据的下行传输方法及分组数据网关，用于解决目前在LTE网关相连多个终端时，尚未存在一种服务器主动向终端传输业务数据的方法的问题，在该方案中，与核心网侧连接的服务器需要向LTE网关连接的目标终端发送业务数据时，该服务器发送的数据包的目的IP地址可以是目标终端的IP地址，即使与LTE网关连接的终端有多个的话，LTE网关根据目标终端的IP地址可以将接收到的业务数据发送至连接的目标终端，因此，LTE网关可以连接多个终端，进而实现了LTE网关相连多个终端时，服务器可以主动向任意一个终端传输业务数据。

Description

一种业务数据的下行传输方法及分组数据网关
本申请要求在2013年12月27日提交中国专利局、申请号为201310741927.6、申请名称为“一种业务数据的下行传输方法及分组数据网关”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，特别涉及一种业务数据的下行传输方法及分组数据网关。
背景技术
LTE(Long Term Evolution，长期演进)为3G(3rd Generation，第三代)的下一代演进技术，不仅具有100Mbit/s的数据下载能力，同时，LTE凭借支持多频段、高带宽、低时延、适于和多种网络联合组网的特点，在通信技术中的重要性日益凸显，其中，由LTE网关、eNodeB(基站)、EPC(Evolved Packet Core，演进分组中心)核心网组成的LTE无线宽带网络如图1A所示的应用越来越广泛。
在实际应用中，主要是LTE网关连接的终端主动向与核心网侧连接的服务器发送业务请求，此时，服务器接收到业务请求后，知道目标终端的IP(Internet Protocol，互联网协议)地址，也就是可以确定要向那个终端发送业务数据，与LTE网关连接的任意一个终端都可以通过上述方法来实现与服务器的交互。
但是，有时与核心网侧连接的服务器需要主动向LTE网关连接的终端发送业务数据，具体过程如下，如图1B所示：
步骤a：服务器A向P-GW(PDN GW，分组数据网关；PDN(Packet Data Network，分组数据网))发送携带业务数据的消息，其中，该消息中还包括与目标终端B连接的LTE网关的IP地址；
步骤b：分组数据网关根据消息中携带的LTE网关的IP地址，将业务数 据通过e Node B发送至LTE网关；
步骤c：LTE网关将接收到的业务数据转发至与本网关连接的终端B。
从上述过程可以看出，由于服务器主动向目标终端发送数据时，目的地址只能填写与目标终端连接的LTE网关的IP地址，因此，上述过程只适用于一个LTE网关只与一个终端相连的情况。随着通信技术的发展，为了提高资源的利用率，目前，在很多场景下，一个LTE网关与多个终端相连，由于服务器发送携带业务数据的消息中只能携带与目标终端相连的LTE网关的IP地址，此时，LTE网关在接收到业务数据时，不知道要下发给与本网关相连的哪一个终端，因此，现有技术中，对于LTE网关相连多个终端的情况下，服务器无法主动向终端传输下行业务数据。
综上所述，目前在LTE网关相连多个终端时，尚未存在一种服务器主动向终端传输业务数据的方法。
发明内容
本发明实施例提供一种业务数据的下行传输方法及分组数据网关网关，用以解决现有技术中存在的服务器无法向连接多个终端的LTE网关中的终端主动传输业务数据的问题。
本发明实施例提供的具体技术方案如下：
第一方面，提供一种业务数据的下行传输方法，包括：
接收服务器发送的业务消息，其中，所述业务消息中携带业务数据及目标终端的互联网协议IP地址；
根据所述目标终端的IP地址，从本地存储的关联关系中确定出与所述目标终端关联的长期演进LTE网关的IP地址，其中，所述关联关系为LTE网关的IP地址与关联终端的IP地址的关联关系；
将所述业务消息发送至与确定出的LTE网关的IP地址对应的LTE网关，以使得所述LTE网关将所述业务数据发送至与所述目标终端的IP地址对应的目标终端。
结合第一方面，在第一种可能的实现方式中，所述接收服务器发送的业务消息，具体包括：
接收所述服务器基于用户数据报协议UDP，或者传输控制协议TCP发送的业务消息。
结合第一方面，或者第一方面的第一种可能的实现方式，在第二种可能的实现方式中，接收网络管理系统NMS发送的携带配置路由表信息的配置消息；
其中，配置路由表信息中包括所述关联关系。
结合第一方面的第二种可能的实现方式，在第三种可能的实现方式中，接收NMS发送的携带配置路由表信息的配置消息，具体包括：
接收NMS基于简单网络管理协议SNMP发送的携带配置路由表信息的配置消息。
结合第一方面，在第四种可能的实现方式中，根据所述目标终端的IP地址，从本地存储的关联关系中确定出与所述目标终端关联的长期演进LTE网关的IP地址，具体包括：
确定所述目标终端的IP地址的指定字节的IP地址，并从所述关联关系中查找出与所述指定字节的IP地址对应的LTE网关的IP地址段；
从所述IP地址段中确定出与所述目标终端关联的LTE网关的IP地址。
第二方面，提供一种分组数据网关，包括：
接收单元，用于接收服务器发送的业务消息，其中，所述业务消息中携带业务数据及目标终端的互联网协议IP地址；
路由选择单元，用于根据所述目标终端的IP地址，从本地存储的关联关系中确定出与所述目标终端关联的长期演进LTE网关的IP地址，其中，所述关联关系为LTE网关的IP地址与关联终端的IP地址的关联关系；
发送单元，用于将所述业务消息发送至与确定出的LTE网关的IP地址对应的LTE网关，以使得所述LTE网关将所述业务数据发送至与所述目标终端的IP地址对应的目标终端。
结合第二方面，在第一种可能的实现方式中，所述接收单元接收服务器发送的业务消息，具体为：
接收所述服务器基于用户数据报协议UDP，或者传输控制协议TCP发送的业务消息。
结合第二方面，或者第二方面的第一种可能的实现方式，在第二种可能的实现方式中，所述路由选择单元在根据所述目标终端的IP地址，从本地存储的关联关系中确定出与所述目标终端关联的LTE网关的IP地址之前，还用于：
接收网络管理系统NMS发送的携带配置路由表信息的配置消息；
其中，配置路由表信息中包括所述关联关系。
结合第二方面的第二种可能的实现方式，在第三种可能的实现方式中，所述路由选择单元接收NMS发送的携带配置路由表信息的配置消息，具体为：
接收NMS基于简单网络管理协议SNMP发送的携带配置路由表信息的配置消息。
结合第二方面，在第四种可能的实现方式中，所述路由选择单元根据所述目标终端的IP地址，从本地存储的关联关系中确定出与所述目标终端关联的长期演进LTE网关的IP地址，具体为：
确定所述目标终端的IP地址的指定字节的IP地址，并从所述关联关系中查找出与所述指定字节的IP地址对应的LTE网关的IP地址段；
从所述IP地址段中确定出与所述目标终端关联的LTE网关的IP地址。
本发明有益效果如下：
现有技术中，与核心网侧连接的服务器需要向LTE网关连接的目标终端发送业务数据时，该服务器发送的数据包的目的IP地址只能是LTE网关的IP地址，因此，与LTE网关连接的终端只能有一个，若有多个终端的话，LTE网关不知道将接收到的业务数据发送至连接的哪个终端，因此，目前在LTE网关相连多个终端时，尚未存在一种服务器主动向终端传输业务数据的方法， 本发明实施例中，先接收服务器发送的业务消息，其中，所述业务消息中携带业务数据及目标终端的IP地址，再根据所述目标终端的IP地址，从本地存储的关联关系中确定出与所述目标终端关联的LTE网关的IP地址，其中，所述关联关系为LTE网关的IP地址与关联终端的IP地址的关联关系，然后，将所述业务消息发送至与确定出的LTE网关的IP地址对应的LTE网关，以使得所述LTE网关将所述业务数据发送至与所述目标终端的IP地址对应的目标终端，本方案中，与核心网侧连接的服务器需要向LTE网关连接的目标终端发送业务数据时，该服务器发送的数据包的目的地IP地址可以是目标终端的IP地址，即使与LTE网关连接的终端有多个的话，LTE网关根据目标终端的IP地址可以将接收到的业务数据发送至连接的目标终端，因此，实现了LTE网关相连多个终端时，服务器可以主动向任意一个终端传输业务数据。
附图说明
图1A为现有技术中LTE无线宽带网络的结构示意图；
图1B为现有技术中服务器主动向终端发送业务数据的流程图；
图2为本发明实施例中服务器主动向终端发送业务数据的详细流程图；
图3为本发明实施例中服务器主动向终端发送业务数据的第一实施例；
图4为本发明实施例中分组数据网关的功能结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
另外，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例 如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字母“/”，一般表示前后关联对象是一种“或”的关系。
为了实现LTE网关相连多个终端时，服务器可以主动向任意一个终端传输业务数据，本发明实施例中，提出一种业务数据的下行传输方法及分组数据网关，在该方案中，与核心网侧连接的服务器需要向LTE网关连接的目标终端发送业务数据时，该服务器发送的数据包的目的地IP地址可以是目标终端的IP地址，即使与LTE网关连接的终端有多个的话，LTE网关根据目标终端的IP地址可以将接收到的业务数据发送至连接的哪个终端，因此，实现了LTE网关相连多个终端时，服务器可以主动向任意一个终端传输业务数据。
下面结合说明书附图对本发明优选的实施方式进行详细说明，应当理解，此处所描述的优选实施例仅用于说明和解释本发明，并不用于限定本发明，并且在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
下面结合附图对本发明优选的实施方式进行详细说明。
参阅图2所示，本发明实施例中，业务数据的下行传输的详细流程如下：
步骤200：接收服务器发送的业务消息，其中，业务消息中携带业务数据及目标终端的IP地址；
步骤210：根据目标终端的IP地址，从本地存储的关联关系中确定出与目标终端关联的LTE网关的IP地址，其中，关联关系为LTE网关的IP地址与关联终端的IP地址的关联关系；
步骤220：将业务消息发送至与确定出的LTE网关的IP地址对应的LTE网关，以使得LTE网关将业务数据发送至与目标终端的IP地址对应的目标终端。
本发明实施例中，接收服务器发送的业务消息的方式有多种，例如，可以接收服务器基于UDP(User Datagram Protocol，用户数据报协议)发送的业务消息，又例如，可以接收服务器基于TCP(Transmission Control Protocol，传输控制协议)，在实际应用中，还可以有其他方式，在此不再进行一一详述。
本发明实施例中，关联关系可能位于一个配置路由表中，配置路由表可 能是NMS发送的，在这种方式下，在步骤210之前，还执行如下操作：
接收NMS发送的携带配置路由表信息的配置消息，其中，配置路由表信息中包括关联关系。
NMS对分组数据网关发送的配置路由表的配置消息，在初始配置好后，再无此消息，除非新增加LTE网关，或增加LTE网关下的终端，NMS会再对分组数据网关发送配置路由表的配置消息。
当然，在实际应用中，关联关系可以是以其他形式存在于本地中，若步骤200-步骤220的执行主体为分组数据网关，则关联关系可以是以其他形式存在于分组数据网关中，同时，携带关联关系信息的消息也可以是其他设备向分组数据网关发送的，在此不再进行详述。
例如，LTE无线宽带传输网中包括两个LTE网关：LTE网关A与LTE网关B，其中，LTE网关A的IP地址为：192.168.20.10，与该LTE网关A连接的三个终端的IP地址分别为：182.188.40.1、182.188.50.1、182.188.60.9，LTE网关B的IP地址为：192.168.30.20，与该LTE网关B连接的三个终端的IP地址分别为：172.178.30.2、172.178.50.3、172.178.60.9，此时，配置路由表中包括的关联关系中包括两组映射关系，第一组映射关系中为LTE网关A的IP地址192.168.20.10，及与LTE网关A关联的三个终端分别对应的IP地址：182.188.40.1、182.188.50.1、182.188.60.9；第二组映射关系中为LTE网关B的IP地址192.168.30.20，及与LTE网关A关联的三个终端分别对应的IP地址：172.178.30.2、172.178.50.3、172.178.60.9。
本发明实施例中，在接收NMS发送的携带配置路由表信息的配置消息时，较佳的，可以接收NMS(Network Management System，网络管理系统)基于SNMP(Simple Network Management Protocol，简单网络管理协议)发送的携带配置路由表信息的配置消息，当然，在实际应用中，还有其他实现方式，在此不再进行详述。
本发明实施例中，根据目标终端的IP地址，从本地存储的关联关系中确定出与目标终端关联的长期演进LTE网关的IP地址的方式有多种，例如，确 定目标终端的IP地址的指定字节的IP地址，并从关联关系中查找出与指定字节的IP地址对应的LTE网关的IP地址段；从IP地址段中确定出与目标终端关联的LTE网关的IP地址，在实际应用中，还有其他实现方式，在此不再进行详述。
为了将完成接收业务数据的信息通知给相应的服务器，进一步的，在将业务消息发送至与确定出的LTE网关的IP地址对应的LTE网关之后，还包括：
接收目标终端发送的响应消息，并将响应消息转发至服务器。
为了更好地理解本发明实施例，以下给出具体应用场景，针对业务数据的下行传输的过程，做出进一步详细描述：
实施例一，具体如图3所示：
视频监控服务器A要向摄像机1发送业务数据。
步骤300：分组数据网关接收NMS发送的配置消息，获取LTE网关的IP地址与关联终端的IP地址的映射关系；
步骤310：视频监控服务器A向分组数据网关发送业务消息；
在该步骤中，该业务消息中携带了针对摄像机1的业务数据、与该业务数据对应的摄像机1的IP地址172.178.30.2。
步骤320：分组数据网关根据摄像机1的IP地址确定出关联的LTE网关的IP地址192.168.30.20；
步骤330：分组数据网关根据LTE网关的IP地址192.168.30.20向该LTE网关发送上述业务消息；
步骤340：LTE网关根据业务消息将针对摄像机1的业务数据，发送至与IP地址172.178.30.2对应的摄像机1；
步骤350：摄像机1通过分组数据网关向视频监控服务器A反馈完成业务数据接收消息。
上述实施例一只是描述了向LTE网关的一个终端发送业务数据的情况，在实际应用中，一个LTE网关下有可能关联多个终端，但是，针对每一个终端的业务数据的传输过程与实施例一类似，在此不再进行详述。
如图4所示，本发明实施例还提供一种分组数据网关，分组数据网关包括接收单元400、路由选择单元410，及发送单元420，其中，
接收单元400，用于接收服务器发送的业务消息，其中，业务消息中携带业务数据及目标终端的IP地址；
路由选择单元410，用于根据目标终端的IP地址，从本地存储的关联关系中确定出与目标终端关联的LTE网关的IP地址，其中，关联关系为LTE网关的IP地址与关联终端的IP地址的关联关系；
发送单元420，用于将业务消息发送至与确定出的LTE网关的IP地址对应的LTE网关，以使得LTE网关将业务数据发送至与目标终端的IP地址对应的目标终端。
较佳的，本发明实施例中，接收单元400接收服务器发送的业务消息时，具体为：接收服务器基于UDP或者TCP发送的业务消息。
进一步的，本发明实施例中，路由选择单元410在根据目标终端的IP地址，从本地存储的关联关系中确定出与目标终端关联的LTE网关的IP地址之前，还用于：
接收NMS发送的携带配置路由表信息的配置消息；
其中，配置路由表信息中包括关联关系。
较佳的，本发明实施例中，路由选择单元410接收NMS发送的携带配置路由表信息的配置消息，具体为：
接收NMS基于SNMP发送的携带配置路由表信息的配置消息。
较佳的，本发明实施例中，路由选择单元410根据目标终端的IP地址，从本地存储的关联关系中确定出与目标终端关联的长期演进LTE网关的IP地址，具体为：
确定目标终端的IP地址的指定字节的IP地址，并从关联关系中查找出与指定字节的IP地址对应的LTE网关的IP地址段；
从IP地址段中确定出与目标终端关联的LTE网关的IP地址。
综上所述，本发明实施例中，先接收服务器发送的业务消息，其中，业 务消息中携带业务数据及目标终端的IP地址，再根据目标终端的IP地址，从本地存储的关联关系中确定出与目标终端关联的LTE网关的IP地址，其中，关联关系为LTE网关的IP地址与关联终端的IP地址的关联关系，然后，将业务消息发送至与确定出的LTE网关的IP地址对应的LTE网关，以使得LTE网关将业务数据发送至与目标终端的IP地址对应的目标终端，本方案中，与核心网侧连接的服务器需要向LTE网关连接的目标终端发送业务数据时，该服务器发送的数据包的目的地IP地址可以是目标终端的IP地址，即使与LTE网关连接的终端有多个的话，LTE网关根据目标终端的IP地址可以将接收到的业务数据发送至连接的哪个终端，因此，LTE网关可以连接多个终端，进而实现了LTE网关相连多个终端时，服务器可以主动向任意一个终端传输业务数据。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中的功能的步骤。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样，倘若本发明实施例的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (10)

  1. 一种业务数据的下行传输方法，其特征在于，包括：
    接收服务器发送的业务消息，其中，所述业务消息中携带业务数据及目标终端的互联网协议IP地址；
    根据所述目标终端的IP地址，从本地存储的关联关系中确定出与所述目标终端关联的长期演进LTE网关的IP地址，其中，所述关联关系为LTE网关的IP地址与关联终端的IP地址的关联关系；
    将所述业务消息发送至与确定出的LTE网关的IP地址对应的LTE网关，以使得所述LTE网关将所述业务数据发送至与所述目标终端的IP地址对应的目标终端。
  2. 如权利要求1所述的方法，其特征在于，所述接收服务器发送的业务消息，具体包括：
    接收所述服务器基于用户数据报协议UDP，或者传输控制协议TCP发送的业务消息。
  3. 如权利要求1或2所述的方法，其特征在于，根据所述目标终端的IP地址，从本地存储的关联关系中确定出与所述目标终端关联的LTE网关的IP地址之前，还包括：
    接收网络管理系统NMS发送的携带配置路由表信息的配置消息；
    其中，配置路由表信息中包括所述关联关系。
  4. 如权利要求3所述的方法，其特征在于，接收NMS发送的携带配置路由表信息的配置消息，具体包括：
    接收NMS基于简单网络管理协议SNMP发送的携带配置路由表信息的配置消息。
  5. 如权利要求1所述的方法，其特征在于，根据所述目标终端的IP地址，从本地存储的关联关系中确定出与所述目标终端关联的长期演进LTE网关的IP地址，具体包括：
    确定所述目标终端的IP地址的指定字节的IP地址，并从所述关联关系中查找出与所述指定字节的IP地址对应的LTE网关的IP地址段；
    从所述IP地址段中确定出与所述目标终端关联的LTE网关的IP地址。
  6. 一种分组数据网关，其特征在于，包括：
    接收单元，用于接收服务器发送的业务消息，其中，所述业务消息中携带业务数据及目标终端的互联网协议IP地址；
    路由选择单元，用于根据所述目标终端的IP地址，从本地存储的关联关系中确定出与所述目标终端关联的长期演进LTE网关的IP地址，其中，所述关联关系为LTE网关的IP地址与关联终端的IP地址的关联关系；
    发送单元，用于将所述业务消息发送至与确定出的LTE网关的IP地址对应的LTE网关，以使得所述LTE网关将所述业务数据发送至与所述目标终端的IP地址对应的目标终端。
  7. 如权利要求6所述的分组数据网关，其特征在于，所述接收单元接收服务器发送的业务消息，具体为：
    接收所述服务器基于用户数据报协议UDP，或者传输控制协议TCP发送的业务消息。
  8. 如权利要求6或7所述的分组数据网关，其特征在于，所述路由选择单元在根据所述目标终端的IP地址，从本地存储的关联关系中确定出与所述目标终端关联的LTE网关的IP地址之前，还用于：
    接收网络管理系统NMS发送的携带配置路由表信息的配置消息；
    其中，配置路由表信息中包括所述关联关系。
  9. 如权利要求8所述的分组数据网关，其特征在于，所述路由选择单元接收NMS发送的携带配置路由表信息的配置消息，具体为：
    接收NMS基于简单网络管理协议SNMP发送的携带配置路由表信息的配置消息。
  10. 如权利要求6所述的分组数据网关，其特征在于，所述路由选择单元根据所述目标终端的IP地址，从本地存储的关联关系中确定出与所述目标 终端关联的长期演进LTE网关的IP地址，具体为：
    确定所述目标终端的IP地址的指定字节的IP地址，并从所述关联关系中查找出与所述指定字节的IP地址对应的LTE网关的IP地址段；从所述IP地址段中确定出与所述目标终端关联的LTE网关的IP地址。
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RU2715389C1 (ru) 2016-06-29 2020-02-27 Бейдзин Сяоми Мобайл Софтвэр Ко., Лтд. Система передачи данных, способ передачи данных, а также способ и устройство агрегирования данных
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