WO2008141516A1 - Message transmitting method, transmitting device and transmitting system - Google Patents
Message transmitting method, transmitting device and transmitting system Download PDFInfo
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- WO2008141516A1 WO2008141516A1 PCT/CN2007/071234 CN2007071234W WO2008141516A1 WO 2008141516 A1 WO2008141516 A1 WO 2008141516A1 CN 2007071234 W CN2007071234 W CN 2007071234W WO 2008141516 A1 WO2008141516 A1 WO 2008141516A1
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- message
- content service
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
Definitions
- the embodiments of the present invention relate to the field of mobile communications, and in particular, to a method for transmitting a message, a transmitting device, and a transmission system.
- the Internet Group Management Protocol (IGMP) snooping is a communication device that maintains local multicast forwarding entries by snooping the user's join request or leaving IGMP messages, thereby determining which member ports the multicast stream forwards to. the process of. During this process, the user's message is not modified, and the communication device needs to forward the upstream and downstream IGMP messages intact.
- IGMP Internet Group Management Protocol
- IGMP V3 SNOOPING In the application scenario of IGMP SNOOPING (IGMP V3 SNOOPING) in the application environment of IGMP V3, end users can join multiple Internet Service Provider (ISP) programs, and different ISPs use virtual LAN (Virtual).
- the local area network (VLAN) or IP is used for identification.
- the user terminal can send a request message containing only one program to request the corresponding program, or can send multiple programs (S, G) at a time (in IGMP V3, use (S, G) identifies a multicast program, where S represents the IP address of the program source, and G represents the request message of the group IP address of the multicast program.
- the multicast router serves as the querier to send the IGMP V3 general query message.
- the user terminal may carry multiple programs in one response message, or may only carry the message. a show.
- a response message carries multiple programs
- the message will be forwarded to multiple ISPs intact, so each ISP server will A response message containing multiple programs is received.
- the programs in the message belong to different ISPs, different ISPs receive the same message, causing information leakage.
- Embodiments of the present invention provide a packet sending method, a sending device, and a transmission system, to implement The security of the message information.
- the embodiment of the invention provides a method for sending a message, including:
- An embodiment of the present invention provides a packet sending apparatus, including:
- a receiving unit configured to receive a message that includes a plurality of requested programs, where the plurality of requested programs are provided by a plurality of content service systems;
- a processing unit configured to divide the received message that includes the plurality of requested programs into a plurality of sub-messages, and send, by the sending unit, the plurality of sub-texts that are decomposed into the corresponding content in the plurality of content service systems Monthly service system.
- An embodiment of the present invention provides a packet transmission system, including: an access point and a border router, where the access point or the border router includes:
- a receiving unit configured to receive a message that includes a plurality of requested programs, where the plurality of requested programs are provided by a plurality of content service systems;
- a processing unit configured to divide the received message that includes the plurality of requested programs into a plurality of sub-messages, and send, by the sending unit, the plurality of sub-messages that are decomposed into the corresponding content month of the plurality of content service systems Good service system.
- the sending method, the sending device, and the transmitting system of the embodiment of the present invention divide the message into sub-messages according to different content service systems to which the programs included in the message belong, and each sub-report includes only one program corresponding to the content service system. Therefore, each content service system can only receive the sub-messages of the programs provided by the server, and cannot receive the messages of other content service systems, thus ensuring the security of the message information.
- FIG. 1 is a flowchart of a method for sending a message according to an embodiment of the present invention
- FIG. 2 is a schematic structural diagram of a transmission system of a message according to an embodiment of the present invention.
- the embodiments of the present invention are directed to solving the problem of compatibility between different types of user terminals, access devices, and access servers in the IGMP V3 SNOOPING model, and ensuring information security for multi-ISP multicast services.
- IGMP V3 (corresponding to rfc3376, Internet Group Management Protocol, Version 3)
- SNOOPING mode if an IGMP V3 response (Report) message carries multiple programs belonging to multiple ISPs, as shown in FIG.
- FIG. A flowchart of a method for sending an embodiment packet, where the method specifically includes the following steps:
- Step 101 Receive a message including multiple requested programs, where the multiple requested programs are provided by multiple content service systems;
- the content service system may be a server or a service providing network or system.
- Different programs in the message are marked by (S, G), S represents the IP address of the program source, and G represents the group IP address of the multicast program;
- Step 102 Divide the received message including multiple requested programs into multiple sub-messages; program that belongs to the same content service system may be encapsulated in one sub-message for transmission, or each program may be encapsulated into one sub-package.
- the packet is sent to the content service system according to the content service system to which the program belongs, so the encapsulated message can be executed as follows:
- the plurality of content service providing systems to which the requested program included in the message belongs may be determined by various methods, for example, by using a VLAN in which the content service system to which the program belongs, so that when the program is defined, the content to which the program belongs is specified.
- the VLAN corresponding to the service system obtains the VLAN of the content service system of the program source of the requested program included in the received message, and finally needs to switch the VLAN where the sub-message is located to the content service.
- the IP address of the content service system of the program source can also be determined by using the IP address of the content service system of the program source, because in the application environment of the IGMP V3 SSM mapping, the group IP+ source IP address is used to identify the program, and the package message is encapsulated.
- the basis of the program is the source IP of the program.
- the program with the same source IP is encapsulated in a sub-message, or each program encapsulates a sub-message, and the received report is received.
- the IP of the content service system of the program source of the requested program included in the message is obtained, and the interface is used to find the outgoing interface or the pre-configured IP and VLAN correspondence, and the VLAN of the packet is switched, and then sent;
- the VLAN corresponding to the content service system to which the program belongs is specified, and multiple identical (S, G) must be deployed in the In different VLANs, that is, (VLAN, G) is unique, so in a multi-ISP environment, each ISP can use the same (S, G) to identify different programs, and receive the user's join message when receiving the message.
- the IP address and the VLAN of the content service system of the program source of the requested program included in the message are obtained, and then the interface or the IP and content of the pre-configured content service system are searched through the routing manner.
- the VLAN corresponding to the service system belongs to the VLAN corresponding to the content service system.
- Step 103 Send the decomposed plurality of sub-messages to a corresponding content service system of the plurality of content service systems.
- the sub-message is sent to the content service system to which the requested program included in the sub-message belongs.
- the encapsulated message is a sub-message, and each sub-message includes only one or more programs corresponding to the content service system, so each content service system can only receive sub-messages of the programs provided by the server, and The sub-messages of other content service systems are not received, so that the message information is not leaked, thereby ensuring the security of the message information.
- the sending device of the packet of the embodiment of the present invention specifically includes: a receiving unit, configured to receive a packet that includes multiple requested programs, where the multiple requested programs are provided by multiple content service systems; and a processing unit, configured to receive the received message
- the message including the plurality of requested programs is divided into a plurality of sub-messages, and the information of the requested programs belonging to the same content service system in the message may be respectively encapsulated into one sub-message, or each of the packets may be
- a requesting program information is encapsulated into a sub-unit of a sub-message; and a sending unit is configured to send the decomposed plurality of sub-messages to a corresponding content service system of the plurality of content service systems.
- a determining unit may be further included for determining a plurality of content services to which the requested program included in the message belongs Provide the system.
- the sending apparatus of the packet in the embodiment of the present invention encapsulates and sends the packet according to the content service system to which the program belongs, so that the packet is not the original forwarding packet, and the security of the packet information is ensured.
- the transmission system of the packet of the embodiment of the present invention includes an access point (Access Node, AN), and the access point includes: a receiving unit, configured to receive a packet that includes multiple requested programs, where the multiple requested programs are multiple
- the content service system provides: a processing unit, configured to divide the received message including the plurality of requested programs into a plurality of sub-messages, and encapsulate the information of the requested programs belonging to the same content service system in the message into one
- the sub-message may also encapsulate the information of each requesting program in the packet into a sub-unit of the sub-message; the sending unit, configured to send the decomposed plurality of sub-messages to the plurality of content services
- a determination unit may be further included for determining a plurality of content service providing systems to which the requested program included in the message belongs.
- the transmission system of the packet in the embodiment of the present invention uses the AN to encapsulate and send the packet according to the content service system to which the program belongs in the message and the information security system, so it is no longer the original forwarding report.
- the text ensures the security of the message information.
- FIG. 2 it is a schematic structural diagram of a transmission system of a packet according to an embodiment of the present invention, which specifically includes: AN21, configured to transparently transmit the packet; and a border router 22,
- the border router 22 includes: a receiving unit, configured to receive, a plurality of requesting programs, wherein the plurality of requested programs are provided by a plurality of content service systems; and the processing unit is configured to divide the received message including the plurality of requested programs into a plurality of sub-messages; Transmitting a plurality of sub-messages into a corresponding content service system of the plurality of content service systems.
- the transmission system of the message according to the embodiment of the present invention uses the border router to encapsulate and send the message according to the content service system to which the program belongs in the message and the information security system, so it is no longer the original forwarding.
- the message ensures the security of the message information.
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Description
报文的发送方法、 发送装置和传输系统
本申请要求于 2007 年 5 月 18 日提交中国专利局、 申请号为 200710107959.5、 发明名称为 艮文的发送方法、 发送装置和传输系统"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
本发明实施例涉及移动通信领域, 尤其涉及一种 "^文的发送方法、发送装 置和传输系统。
背景技术
因特网组管理协议 ( Internet Group Management Protocol, IGMP )窥探 ( SNOOPING )是通讯设备通过窥探用户的加入请求或离开的 IGMP报文, 维 护本地的组播转发表项,从而确定组播流向哪些成员端口转发的过程。在此过 程中,不修改用户的报文,通讯设备需要原封不动的转发上、下行 IGMP报文。
在 IGMP V3 的应用环境上使用 IGMP SNOOPING 的技术(IGMP V3 SNOOPING ) 应用场景中, 终端用户可以先后加入多个因特网服务提供商 ( Internet Service Provider, ISP )的节目, 不同的 ISP通过虚拟局域网( Virtual Local Area Network, VLAN )或 IP进行标识, 用户终端可以发送只包含一个 节目的请求报文来请求相应的节目,也可以一次发送包含多个节目(S, G ) (在 IGMP V3中, 釆用(S, G )标识一个组播节目, 其中 S表示节目源的 IP地址, G表示组播节目的组 IP地址) 的请求报文。
终端用户点播节目后, 组播路由器作为查询器发送 IGMP V3通用查询的 报文时, 用户终端收到该通用查询的报文后, 可在一个响应报文中携带多个节 目, 也可以只携带一个节目。 对于一个响应报文携带多个节目的情况, 按照 IGMP SNOOPING的标准实现,尽管报文中携带多个节目,但是该报文会原封 不动的转发给多个 ISP, 因此每一个 ISP的服务器会接收到包含多个节目的响 应报文, 由于报文中的节目属于不同的 ISP,导致不同的 ISP收到相同的报文, 造成信息泄漏。同时,可能存在安全隐患。例如如果不同的 ISP釆用相同的(S, G )标识节目, 可能会导致节目流错误转发。
发明内容
本发明实施例提供一种报文的发送方法、 发送装置和传输系统, 以实现
报文信息的安全。
本发明实施例提供了一种报文的发送方法, 包括:
接收包括多个请求节目的报文,所述多个请求节目由多个内容服务系统提 供;
将接收到的包括多个请求节目的报文分成多个子报文;
将分解成的多个子报文发送到所述多个内容服务系统中对应的内容服务 系统。
本发明实施例提供了一种报文的发送装置, 包括:
接收单元, 用于接收包括多个请求节目的报文, 所述多个请求节目由多个 内容服务系统提供;
处理单元, 用于将接收到的包括多个请求节目的报文分成多个子报文; 发送单元,用于将分解成的多个子 "^文发送到所述多个内容服务系统中对 应的内容月良务系统。
本发明实施例提供了一种报文的传输系统, 包括: 接入点和边界路由器, 所述接入点或所述边界路由器包括:
接收单元, 用于接收包括多个请求节目的报文, 所述多个请求节目由多个 内容服务系统提供;
处理单元, 用于将接收到的包括多个请求节目的报文分成多个子报文; 发送单元, 用于将分解成的多个子报文发送到所述多个内容服务系统中 对应的内容月良务系统。
本发明实施例的发送方法、发送装置和传输系统根据报文中包含的节目所 属不同的内容服务系统, 分报文为子报文,每个子报文中只包括一个对应内容 服务系统提供的节目,因此每个内容服务系统只能接收本服务器提供的节目的 子报文, 而接收不到其他内容服务系统的报文, 所以保证了报文信息的安全。 附图说明
图 1为本发明实施例报文的发送方法的流程图;
图 2为本发明实施例报文的传输系统的结构示意图。
具体实施方式
下面通过附图和实施例,对本发明实施例的技术方案做进一步的详细描述。
本发明实施例旨在解决 IGMP V3 SNOOPING模型中, 为开展多 ISP组播 业务, 不同类型的用户终端、 接入设备、 接入服务器兼容的问题, 同时保证信 息安全。
IGMP V3 (对应 rfc3376, Internet Group Management Protocol, Version 3 ) SNOOPING模式下, 如果一个 IGMP V3的响应 (Report )报文中携带属于多 个 ISP的多个节目,则如图 1所示,为本发明实施例报文的发送方法的流程图, 本方法具体包括如下步骤:
步骤 101 , 接收包括多个请求节目的报文, 所述多个请求节目由多个内容 服务系统提供;
内容服务系统可以是服务器,也可以是业务提供网络或系统,报文中的不 同节目利用 (S, G )来标志, S表示节目源的 IP地址, G表示组播节目的组 IP地址;
步骤 102, 将接收到的包括多个请求节目的报文分成多个子报文; 可以将属于相同内容服务系统的节目封装在一个子报文中进行发送,也可 以将每一个节目封装为一个子报文,按照节目所属的内容服务系统,将封装属 于一个内容服务系统的报文均发送到该内容服务系统;因此封装报文可以如下 执行:
首先, 确定该报文所包含的请求节目所属的多个内容服务提供系统; 然后,将所述报文中的属于相同内容服务系统的请求节目的信息分别封装 为一个子报文; 或者将所述报文中的每一个请求节目的信息封装为一个子报 文;
而确定该报文所包含的请求节目所属的多个内容服务提供系统可以有很 多种方法, 例如利用节目所属的内容服务系统所在的 VLAN来确定, 这样在 定义节目时,会指定节目所属的内容服务系统对应的 VLAN,从接收到的所述 报文中, 获取该报文所包含的请求节目的节目源的内容服务系统所在的 VLAN , 最后需要将子报文所在的 VLAN 切换成该内容服务系统所在的 VLAN;
也可以利用节目源的内容服务系统所在的 IP的不同来确定,因为在 IGMP V3 SSM mapping的应用环境中, 釆用组 IP+源 IP地址标识节目, 其封装报文
的依据是节目的源 IP, 对于报文中携带多个节目时, 把具有相同源 IP的节目 封装在一个子报文中 ,或者每个节目封装一个子报文,从接收到的所述报文中 , 获取该报文所包含的请求节目的节目源的内容服务系统的 IP, 通过路由方式 寻找出接口或通过预先配置的 IP和 VLAN的对应关系, 切换报文的 VLAN, 然后发送;
还可以利用节目的节目源的内容服务系统的 IP和所在的 VLAN封装报 文, 首先定义节目时, 指定节目所属的内容服务系统对应的 VLAN, 保证多个 相同的(S, G )必须部署在不同的 VLAN中, 即(VLAN, G )是唯一的, 这 样在多 ISP的环境中, 各 ISP可以使用相同的 (S, G )标识不同的节目, 接 收到用户的加入报文时,从接收到的所述报文中, 获取该报文所包含的请求节 目的节目源的内容服务系统的 IP和所在的 VLAN, 然后通过路由方式寻找出 接口或通过预先配置的内容服务系统的 IP和内容服务系统所属 VLAN的对应 关系, 切换用户请求才艮文的 VLAN为对应内容服务系统对应的 VLAN;
步骤 103 , 将分解成的多个子报文发送到所述多个内容服务系统中对应的 内容服务系统。
本步骤就是将所述子报文发送给该子报文中包含的请求节目所属的内容 月良务系统。 统,封装报文为子报文,每个子报文中只包括一个对应内容服务系统提供的一 个或多个节目, 因此每个内容服务系统只能接收本服务器提供的节目的子报 文, 而接收不到其他内容服务系统的子报文, 使得报文信息不泄漏, 从而保证 了报文信息的安全。
本发明实施例报文的发送装置具体包括,接收单元, 用于接收包括多个请 求节目的报文, 所述多个请求节目由多个内容服务系统提供; 处理单元, 用于 将接收到的包括多个请求节目的报文分成多个子报文,可以将所述报文中的属 于相同内容服务系统的请求节目的信息分别封装为一个子报文,也可以将所述 报文中的每一个请求节目的信息封装为一个子报文的子单元; 发送单元, 用于 将分解成的多个子报文发送到所述多个内容服务系统中对应的内容服务系统。 还可以包括确定单元,用于确定该报文所包含的请求节目所属的多个内容服务
提供系统。
因此本发明实施例报文的发送装置根据报文中的节目所属的内容服务系 统来封装和发送报文, 所以不再是原封不动的转发报文,保证了报文信息的安 全。
本发明实施例报文的传输系统包括接入点 (Access Node, AN ), 该接入 点包括: 接收单元, 用于接收包括多个请求节目的报文, 所述多个请求节目由 多个内容服务系统提供; 处理单元, 用于将接收到的包括多个请求节目的报文 分成多个子报文,可以将所述报文中的属于相同内容服务系统的请求节目的信 息分别封装为一个子报文,也可以将所述报文中的每一个请求节目的信息封装 为一个子报文的子单元; 发送单元, 用于将分解成的多个子报文发送到所述多 个内容服务系统中对应的内容服务系统。还可以包括确定单元, 用于确定该报 文所包含的请求节目所属的多个内容服务提供系统。
因此本发明实施例报文的传输系统从应用和信息安全的角度出发, 根据 报文中的节目所属的内容服务系统, 利用 AN来封装和发送报文, 所以不再是 原封不动的转发报文, 保证了报文信息的安全。
如图 2所示, 为本发明实施例报文的传输系统的结构示意图, 具体包括: AN21 , 用于透传上述报文; 边界路由器 22, 该边界路由器 22 包括: 接收单 元, 用于接收包括多个请求节目的报文, 所述多个请求节目由多个内容服务系 统提供;处理单元,用于将接收到的包括多个请求节目的报文分成多个子报文; 发送单元,用于将分解成的多个子报文发送到所述多个内容服务系统中对应的 内容服务系统。
因此本发明实施例报文的传输系统从应用和信息安全的角度出发, 根据 报文中的节目所属的内容服务系统, 利用边界路由器来封装和发送报文, 所以 不再是原封不动的转发报文, 保证了报文信息的安全。
最后所应说明的是,以上实施例仅用以说明本发明实施例的技术方案而非 限制,尽管参照较佳实施例对本发明进行了详细说明, 本领域的普通技术人员 应当理解, 可以对本发明实施例的技术方案进行修改或者等同替换, 而不脱离 本发明实施例技术方案的精神和范围。
Claims
1、 一种报文的发送方法, 其特征在于, 包括:
接收包括多个请求节目的报文,所述多个请求节目由多个内容服务系统提 供;
将接收到的包括多个请求节目的报文分成多个子报文;
将分解成的多个子报文发送到所述多个内容服务系统中对应的内容服务 系统。
2、 根据权利要求 1所述的报文的发送方法, 其特征在于, 所述请求节目 利用节目源的 IP地址和组播节目的组 IP地址进行标识。
3、 根据权利要求 1或 2所述的报文的发送方法, 其特征在于, 所述将接 收到的包括多个请求节目的报文分成多个子报文之前还包括:确定该报文所包 含的请求节目所属的多个内容服务提供系统。
4、 根据权利要求 3所述的报文的发送方法, 其特征在于, 所述确定请求 节目所属的内容服务提供系统包括:
从接收到的所述报文中,获取该报文所包含的请求节目的节目源的内容服 务系统的 IP地址 和 /或所在的虚拟局域网标识;
根据所述 IP地址 和 /或所在的虚拟局域网标识确定请求节目所属的内容 服务提供系统。
5、 根据权利要求 4所述的报文的发送方法, 其特征在于, 所述将接收到 的报文分成属于不同内容服务系统的多个子报文包括:
将所述报文中的属于相同内容服务系统的请求节目的信息分别封装为一 个子报文; 或者
将所述报文中的每一个请求节目的信息封装为一个子报文。
6、 一种报文的发送装置, 其特征在于, 包括:
接收单元, 用于接收包括多个请求节目的报文, 所述多个请求节目由多个 内容服务系统提供;
处理单元, 用于将接收到的包括多个请求节目的报文分成多个子报文; 发送单元,用于将分解成的多个子 "^文发送到所述多个内容服务系统中对 应的内容月良务系统。
7、 根据权利要求 6所述的报文的发送装置, 其特征在于, 还包括: 确定单元,用于确定该报文所包含的请求节目所属的多个内容服务提供系 统。
8、 根据权利要求 6或 7所述的报文的发送装置, 其特征在于, 所述装置 为接入点或边界路由器。
9、 一种报文传输系统, 包括接入点和边界路由器, 其特征在于, 所述接 入点或所述边界路由器包括:
接收单元, 用于接收包括多个请求节目的报文, 所述多个请求节目由多个 内容服务系统提供;
处理单元, 用于将接收到的包括多个请求节目的报文分成多个子报文; 发送单元,用于将分解成的多个子 "^文发送到所述多个内容服务系统中对 应的内容月良务系统。
10、 根据权利要求 9所述的报文传输系统, 其特征在于, 所述接入点或 所述边界路由器还包括:
确定单元,用于确定该报文所包含的请求节目所属的多个内容服务提供系 统。
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EP08008214A EP1993228B1 (en) | 2007-05-18 | 2008-04-29 | Message sending method, message sending device and message transmission system |
ES08008214T ES2385507T3 (es) | 2007-05-18 | 2008-04-29 | Método de envío de mensajes, dispositivo de envío de mensajes y sistema de transmisión de mensajes |
US12/116,525 US8402474B2 (en) | 2007-05-18 | 2008-05-07 | Message sending method, message sending device and message transmission system |
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CN2007101079595A CN101309154B (zh) | 2007-05-18 | 2007-05-18 | 报文的发送方法、发送装置和传输系统 |
CN200710107959.5 | 2007-05-18 |
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CN103391316A (zh) * | 2013-07-09 | 2013-11-13 | 潍柴动力股份有限公司 | 车辆远程端、客户端监控方法和装置及车辆远程监控系统 |
CN105577566A (zh) * | 2014-10-24 | 2016-05-11 | 中兴通讯股份有限公司 | 报文汇聚传输的方法、装置和系统 |
CN108322543A (zh) * | 2018-02-13 | 2018-07-24 | 南京达沙信息科技有限公司 | 一种制冷型气象软件管理系统及其方法 |
CN108512773A (zh) * | 2018-02-13 | 2018-09-07 | 南京达沙信息科技有限公司 | 一种气象软件管理系统及其方法 |
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US20030054820A1 (en) * | 2000-12-30 | 2003-03-20 | Lg Electronics Inc. | Method for transmitting message in paging channel |
CN1809050A (zh) * | 2006-02-13 | 2006-07-26 | 杭州华为三康技术有限公司 | 一种发送报文的方法 |
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US6847620B1 (en) * | 1999-05-13 | 2005-01-25 | Intermec Ip Corp. | Mobile virtual LAN |
DE60108404T2 (de) * | 2001-12-10 | 2005-12-22 | Alcatel | Vorrichtung und Verfahren zum Ausrichten des Mehrfachdatenverkehrs in einem Ethernet-MAN |
EP1335521A3 (en) * | 2002-02-08 | 2004-03-10 | Alcatel | Method and device for managing multicast groups |
JP2004104567A (ja) * | 2002-09-11 | 2004-04-02 | Fuji Xerox Co Ltd | メール処理システム |
JP4165196B2 (ja) * | 2002-11-26 | 2008-10-15 | 株式会社日立製作所 | パケット中継装置 |
GB2423438B (en) * | 2005-02-17 | 2007-09-05 | Motorola Inc | Multicast routing |
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US20030054820A1 (en) * | 2000-12-30 | 2003-03-20 | Lg Electronics Inc. | Method for transmitting message in paging channel |
CN1809050A (zh) * | 2006-02-13 | 2006-07-26 | 杭州华为三康技术有限公司 | 一种发送报文的方法 |
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CN101309154B (zh) | 2011-04-13 |
CN101309154A (zh) | 2008-11-19 |
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