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    • 3. 发明授权
    • Telecommunications system and method
    • US09615345B2
    • 2017-04-04
    • US12666984
    • 2008-06-26
    • Xiaobao Chen
    • Xiaobao Chen
    • H04W4/00H04W60/00H04W8/26H04W80/04
    • H04W60/00H04W8/26H04W80/04
    • A telecommunications system is arranged to provide a facility for communicating data to and from a mobile node using an internet protocol. The system includes a first home access network, which includes a home gateway node, a second visited access network, which includes a visited serving gateway node, and a wireless access gateway operable to communicate data to and from the mobile node using the internet protocol. The mobile node is operable to communicate a binding update message to the visited serving gateway node of the second visited access network via the wireless access gateway using the internet protocol. The binding update message includes a unique identifier of the mobile node, and a request for an internet protocol address for the mobile node as if the mobile node were attached to the first home access network (home IP address). In one example the unique identifier is an International Mobile Subscriber Identity (IMSI) number or the like. The visited serving gateway node of the second visited access network is operable, in response to the binding update message, to identify from the unique identifier of the mobile node the first home access network of the mobile node and to communicate the request for a home internet protocol address to the home gateway node. The home gateway node of the first home network is responsive to the request to allocate a home internet protocol address to the mobile node.Embodiments of the present invention provide a mobile node with roaming facilities as afforded by a 3GPP network, although the mobile node may have attached to a non-3GPP network, by arranging for the visited serving gateway node to connect to a home network of the mobile node, using for example a GPRS Tunnelling Protocol.
    • 4. 发明授权
    • Telecommunications system and method
    • US10404604B2
    • 2019-09-03
    • US15208503
    • 2016-07-12
    • 3G Licensing S.A.
    • Xiaobao ChenPhilippe Lucas
    • H04L12/851H04L12/46H04L12/801H04L12/919H04L12/927H04L12/911H04W36/00H04W60/00H04W28/24H04W80/04
    • A telecommunications system is operable to provide a facility for a communications session to a mobile node using an internet protocol. When changing affiliation from one of a first and second packet data network to the other of the first and second packet data network, a mobile node is operable to generate a service level identifier representing a requested priority to be afforded to the internet packets communicated to and from the mobile node with respect to other internet packets communicated to and from other nodes. The mobile node is also operable to generate a binding update internet packet providing a care of address of the mobile and an indication of the service level identifier in the binding update internet packet and to communicate the binding update internet data packets to a home agent of the mobile node. The home agent is operable in response to the binding update to identify the service level identifier and to communicate the internet packets in accordance with the requested priority represented by the service level identifier. The telecommunications system can prioritise the transmission of internet packets according to a priority requested by the mobile node represented by the service level identifier thus reducing a likelihood that mobile node will experience delays or interruptions in the transmission of data.
    • 6. 发明授权
    • Telecommunications system and method
    • 电信系统和方法
    • US09413681B2
    • 2016-08-09
    • US12224919
    • 2007-02-16
    • Xiaobao ChenPhilippe Lucas
    • Xiaobao ChenPhilippe Lucas
    • H04W40/00H04L12/919H04L12/54H04L12/801H04L12/851H04L12/927H04L12/911H04W36/00H04W60/00H04W28/24H04W80/04
    • H04L47/2433H04L12/4633H04L47/14H04L47/2408H04L47/2425H04L47/70H04L47/767H04L47/805H04L47/824H04W28/24H04W36/0011H04W60/00H04W80/04H04W80/045
    • A telecommunications system is operable to provide a facility for a communications session to a mobile node using an internet protocol. When changing affiliation from one of a first and second packet data network to the other of the first and second packet data network, a mobile node is operable to generate a service level identifier representing a requested priority to be afforded to the internet packets communicated to and from the mobile node with respect to other internet packets communicated to and from other nodes. The mobile node is also operable to generate a binding update internet packet providing a care of address of the mobile and an indication of the service level identifier in the binding update internet packet and to communicate the binding update internet data packets to a home agent of the mobile node. The home agent is operable in response to the binding update to identify the service level identifier and to communicate the internet packets in accordance with the requested priority represented by the service level identifier. The telecommunications system can prioritize the transmission of internet packets according to a priority requested by the mobile node represented by the service level identifier thus reducing a likelihood that mobile node will experience delays or interruptions in the transmission of data.
    • 电信系统可操作以使用因特网协议向移动节点提供通信会话的设施。 当从第一和第二分组数据网络之一改变从第一和第二分组数据网络中的另一个分组数据网络的隶属关系时,移动节点可操作地生成表示所要求的优先级的服务等级标识符, 从移动节点相对于传送到其它节点的其他互联网分组。 移动节点还可操作地生成提供移动台的地址的绑定更新因特网分组以及绑定更新因特网分组中的服务水平标识符的指示,并且将绑定更新因特网数据分组传送给 移动节点。 归属代理可以响应于绑定更新来操作以识别服务等级标识符并且根据由服务级标识符表示的所请求的优先级来传送因特网分组。 电信系统可以根据由服务水平标识符表示的移动节点所要求的优先级来优先确定互联网分组的传输,从而减少移动节点将在数据传输中经历延迟或中断的可能性。
    • 9. 发明授权
    • Packet data communications
    • US10103984B2
    • 2018-10-16
    • US15266978
    • 2016-09-15
    • 3G LICENSING S.A.
    • Xiaobao ChenMartin Harris
    • H04L12/741H04L12/701H04W80/04H04L29/06H04L12/801H04W88/16
    • An internet packet comprises a header field, the header field including a field identifying a source address of the internet packet, a field identifying the destination address of the internet packet and a next header field identifying whether an extension header follows the header and a type of the extension header. The extension header indicates a hop-by-hop option header, the hop-by-hop extension header including a router alert option header type indicating that the extension field is optional for a router to read, and a field providing information for a gateway support node of a packet radio system network. A gateway support node is thereby provided with information, which may be required for example to support a mobile internet protocol (IP). However, by providing the router alert option field, a router is not required to read the remainder of the hop-by-hop option field. As a result, a reduction in the performance of the router in routing internet packets, which may have been incurred if the router was required to read all the hop-by-hop extension field can be limited.