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81. 发明申请

US20050226186A1 Method for supporting handoff and preventing data loss in mobile communications network 失效
标题翻译：支持移动通信网络切换和防止数据丢失的方法
公开(公告)号：US20050226186A1
公开(公告)日：2005-10-13
申请号：US11098906
申请日：2005-04-04
申请人： Jae Ryu , Won Ryu , Soon Kim , Dong Kim
发明人： Jae Ryu , Won Ryu , Soon Kim , Dong Kim
IPC分类号： H04L12/56 , H04W36/12 , H04W80/00 , H04Q7/00
CPC分类号： H04W36/12 , H04W80/00
摘要： A method for supporting handoff and preventing data loss in mobile communications networks is provided. The method for a mobile node establishing a mobile Internet protocol (MIP) with at least one or more wireless packet service systems, each of which has a serving GPRS support node (SGSN) and a gateway GPRS support node (GGSN), includes: a first SGSN connected to the mobile node transmitting predetermined first connection information on the mobile node to at least one or more second SGSNs adjacent to the first SGSN; the second SGSN receiving the first connection information storing the first connection information as a database item, and transmitting 1 first connection acknowledgement message to the first SGSN; if reception of the connection acknowledgement message is successful, the first GGSN connected to the first SGSN transmitting predetermined second connection information on the mobile node to at least one or more second GGSNs connected to the second SGSN; and the second GGSN receiving the second connection information and then transmitting a second connection acknowledgement message to the second GGSN. By transmitting information on a mobile node required for handoff to adjacent foreign agents (FAs) in advance, when handoff is performed, reliable handoff can be performed quickly without resetting and releasing a PPP, such that IP mobility services can be provided.
摘要翻译：提供了一种支持切换和防止移动通信网络中的数据丢失的方法。移动节点建立具有至少一个或多个无线分组业务系统的移动节点（MIP）的方法，每个无线分组业务系统具有服务GPRS支持节点（SGSN）和网关GPRS支持节点（GGSN），包括：连接到所述移动节点的第一SGSN将所述移动节点上的预定的第一连接信息发送到与所述第一SGSN相邻的至少一个或多个第二SGSN; 第二SGSN接收存储第一连接信息的第一连接信息作为数据库项，并向第一SGSN发送第一连接确认消息; 如果连接确认消息的接收成功，则连接到第一SGSN的第一GGSN将移动节点上的预定第二连接信息发送到连接到第二SGSN的至少一个或多个第二GGSN; 并且第二GGSN接收第二连接信息，然后向第二GGSN发送第二连接确认消息。通过事先向相邻的外部代理（FA）发送切换所需的移动节点上的信息，在执行切换时，可以快速地执行可靠的切换，而无需重新设置和释放PPP，从而可以提供IP移动业务。

82. 发明授权

US5526356A Ring communication network node apparatus with buffers and method for controlling the same 失效
标题翻译：具有缓冲器的环通信网络节点设备及其控制方法
公开(公告)号：US5526356A
公开(公告)日：1996-06-11
申请号：US352094
申请日：1994-11-30
申请人： Tae J. Kim , Won Ryu
发明人： Tae J. Kim , Won Ryu
IPC分类号： H04L12/42 , H04L12/43 , H04L12/433
CPC分类号： H04L47/10 , H04L12/42
摘要： A node apparatus of such a ring communication network including buffers capable of improving a performance of the ring communication network and yet maintaining a global fairness in use of a ring communication network bandwidth among nodes, and a method for controlling the node apparatus. The node apparatus includes a receiver unit for receiving packets and slots from a ring, an ordering buffering unit for ordering the packets, a receiving queuing unit for temporarily storing messages of the packets to be sent to a host, a trunk buffering unit for temporarily storing packets to be transmitted to other nodes and then relaying the stored packets, a transmitting queuing unit for storing messages to be transmitted to the ring, and a transmitter unit for transmitting packets and messages in a medium access control manner. The control method includes the first step of checking about a destination node for a packet received to a node, the second step of processing the packet when the destination node corresponds to the packet-received node, the third step of processing the packet in a manner different from the second step when the destination node corresponds to a node other than the packet-received node, the fourth step of processing the packet at an empty state and the fifth step of processing the packet at a seizure state.
摘要翻译：这种环形通信网络的节点装置包括能够改善环形通信网络的性能并且在节点之间保持环形通信网络带宽的全局公平性的缓冲器，以及用于控制节点装置的方法。该节点装置包括用于从环接收分组和时隙的接收单元，用于排序分组的排序缓冲单元，用于临时存储要发送给主机的分组的消息的接收排队单元，用于临时存储的中继缓冲单元要发送到其他节点并随后中继存储的分组的分组，用于存储要发送到环的消息的发送排队单元，以及以媒体访问控制方式发送分组和消息的发送器单元。该控制方法包括检查接收到节点的分组的目的地节点的第一步骤，当目的地节点对应于分组接收节点时处理分组的第二步骤，以一种方式处理分组的第三步骤当目的地节点对应于除了分组接收节点之外的节点时，与第二步骤不同，第四步骤处理空闲状态下的分组，以及在发作状态下处理分组的第五步骤。

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