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    • 71. 发明专利
    • Radio communication device
    • 无线电通信设备
    • JP2009159450A
    • 2009-07-16
    • JP2007337139
    • 2007-12-27
    • Kyocera Corp京セラ株式会社
    • NAGASAWA CHIZUKOMORITA KUGO
    • H04W76/02H04L12/875H04L12/885H04L12/905H04W36/14H04W36/36H04W88/02
    • H04W36/30H04W36/14
    • PROBLEM TO BE SOLVED: To provide a radio communication device enabling handover to a different radio communication network without causing deterioration in the quality of reproduction sound, that in the quality of a call, or the like. SOLUTION: The radio communication device includes: radio communication sections 31, 32, 34 connected to first and second radio communication networks 15, 16 to execute radio communication; an execution section 33 of an application of a real-time communication system; a jitter buffer 47 for absorbing jitter of the packet of the application; a communication quality acquisition section 35 for acquiring the communication quality of a radio link in a first radio communication network 15; a handover control section 36 for starting handover to the second radio communication network 16 from the first radio communication network 15, based on the obtained communication quality; and a control section 33 for controlling reproduction speed of the application, based on the number of stored packets in the jitter buffer 47. Based on acquisition information, the reproduction speed of the application under execution is controlled. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够切换到不同的无线电通信网络的无线电通信装置,而不会导致再现声音的质量劣化,呼叫质量的劣化等。 解决方案:无线电通信设备包括:连接到第一和第二无线电通信网络15,16的无线电通信部分31,32,34,以执行无线电通信; 应用实时通信系统的执行部分33; 用于吸收应用的分组的抖动的抖动缓冲器47; 用于获取第一无线电通信网络15中的无线电链路的通信质量的通信质量获取部分35; 切换控制部分36,用于基于获得的通信质量从第一无线电通信网络15开始到第二无线电通信网络16的切换; 以及控制部分33,用于基于抖动缓冲器47中存储的分组的数量来控制应用的再现速度。基于获取信息,控制正在执行的应用的再现速度。 版权所有(C)2009,JPO&INPIT
    • 74. 发明专利
    • Mobile router and program to switch relay route according to network connection state
    • 移动路由器和根据网络连接状态切换中继路由的程序
    • JP2008054145A
    • 2008-03-06
    • JP2006229946
    • 2006-08-26
    • Kddi CorpKddi株式会社
    • TASAKA KAZUYUKIHORIUCHI HIRONORI
    • H04B7/26H04L12/46H04L12/70H04L12/905H04W48/16H04W48/18H04W80/04H04W88/14
    • PROBLEM TO BE SOLVED: To provide a mobile router and program which switches a mobile node used by a user according to a connection state of a fixed network and, vice versa, switches the connection state of the fixed network according to the mobile node used by the user. SOLUTION: The mobile router has a route changeover section. A first route changeover section converts a transmission source address or a destination address of a packet to relay between a home agent and the mobile node according to the connection state of the fixed network. A second route changeover section converts the transmission source address or the destination address of the packet to relay between the home agent and the mobile node according to the connection state of a mobile network. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种移动路由器和程序,其根据固定网络的连接状态来切换用户使用的移动节点,反之亦然,根据移动设备切换固定网络的连接状态 用户使用的节点。

      解决方案:移动路由器具有路由切换部分。 第一路由切换部根据固定网络的连接状态,将分组的发送源地址或目的地地址转换为归属代理与移动节点之间的中继。 第二路由切换部根据移动网络的连接状态,将分组的发送源地址或目的地地址转换为归属代理和移动节点之间的中继。 版权所有(C)2008,JPO&INPIT

    • 78. 发明专利
    • System for determining traffic distribution factor to multiple paths
    • 用于确定交通分配因子到多个PATHS的系统
    • JP2006041920A
    • 2006-02-09
    • JP2004218868
    • 2004-07-27
    • Kddi CorpKddi株式会社
    • OGINO OSAOTANAKA HIDEAKI
    • H04L12/801H04L12/803H04L12/905H04L12/911H04L12/919
    • PROBLEM TO BE SOLVED: To distribute traffic to respective paths while always satisfying restrictions of a packet loss rate and minimizing mean packet transfer delay based upon packet loss rate information reported in every traffic distribution rate update cycle having a certain length even if traffic conditions change. SOLUTION: There are a plurality of paths (1) to (n) between a transmission node (s) and a reception node (d). The reception node (d) reports packet loss rate information to the transmission node (s) in every traffic distribution rate update cycle, for example, having the certain length. The transmission node (s) updates traffic distribution rates of the respective paths based upon the reported packet loss information and distribute traffic with a large packet loss rate and a traffic distributed to the longest path to the shortest path having a margin of a packet loss rate. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了将流量分配到各个路径,同时总是满足分组丢失率的限制并且基于在具有一定长度的每个业务分配率更新周期中报告的分组丢失率信息来最小化平均分组传输延迟,即使流量 条件变化。 解决方案:在传输节点和接收节点(d)之间有多条路径(1)到(n)。 接收节点(d)例如在具有一定长度的每个业务分配率更新周期中向发送节点报告分组丢失率信息。 发送节点根据所报告的分组丢失信息来更新各个路径的业务分配率,并且以大的分组丢失率分配业务,并将分配给最长路径的业务分配到具有分组丢失率的余量的最短路径 。 版权所有(C)2006,JPO&NCIPI