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    • 34. 发明授权
    • Apparatus for detecting quality deterioration of a telecommunications network by discriminating periodic faults
    • 用于通过识别周期性故障来检测电信网络的质量恶化的装置
    • US08472332B2
    • 2013-06-25
    • US12656321
    • 2010-01-26
    • Nobuyuki Nakamura
    • Nobuyuki Nakamura
    • H04L12/26
    • H04L41/0677H04L41/5003
    • An apparatus for detecting deterioration in quality of a telecommunications network includes a packet monitor for monitoring a packet flowing through the network, a quality information extractor for extracting the quality index of the network on the basis of the packet monitored, a quality deterioration detector for detecting deterioration in quality of the network on the basis of the quality index. The quality deterioration detector determines, for the packet monitored and coming only from a wired line, that the quality of the network is deteriorated if the quality index decreases, and determines, for the packet monitored and coming from a wireless line, that the quality of the network is deteriorated if the quality index aperiodically decreases.
    • 用于检测电信网络质量下降的装置包括:用于监视流经网络的分组的分组监视器,用于基于所监视的分组提取网络的质量指标的质量信息提取器,用于检测的质量恶化检测器 在质量指标的基础上降低网络质量。 质量劣化检测器对于仅仅从有线线路监视并且仅来自有线线路的数据包,确定如果质量指标降低,则网络的质量恶化,并且确定对于来自无线线路的数据包的质量, 如果质量指数不定期地下降,则网络恶化。
    • 35. 发明授权
    • Communication terminal and communication network
    • 通信终端和通信网络
    • US08199664B2
    • 2012-06-12
    • US12471955
    • 2009-05-26
    • Nobuyuki NakamuraYouiti Kado
    • Nobuyuki NakamuraYouiti Kado
    • H04L12/28
    • H04L45/00H04L45/122H04L45/24
    • Routing schemes are provided for a communication network. In one scheme, destination terminals and associated neighboring terminals are listed in a routing control cache at each communication terminal in the network, and packets are routed toward the destination terminal through the associated neighboring terminals. In another scheme, a single path from a source terminal to a destination terminal is automatically expanded into multiple paths. In yet another scheme, packets are routed as long as this does not increase the number of hops to the destination terminal. These schemes enable multiple paths to be established by a simple procedure not requiring complex distance calculations. In still another scheme, routing is restricted to the shortest path and paths up to a given number of hops longer than the shortest path, permitting paths to diverge in multiple directions from the source and destination terminals.
    • 为通信网络提供路由方案。 在一种方案中,目的地终端和相关联的相邻终端被列在网络中的每个通信终端处的路由控制高速缓存中,并且分组通过相关联的相邻终端被路由到目的地终端。 在另一方案中,从源终端到目的终端的单一路径被自动扩展成多个路径。 在另一种方案中,只要这不增加到目的地终端的跳数,分组被路由。 这些方案使得能够通过不需要复杂距离计算的简单过程来建立多个路径。 在另一种方案中,路由被限制到比最短路径更长的给定跳数的最短路径和路径,允许路径从源终端和目的地终端在多个方向上发散。
    • 39. 发明授权
    • Communication terminal and communication network
    • 通信终端和通信网络
    • US07664032B2
    • 2010-02-16
    • US10981630
    • 2004-11-05
    • Nobuyuki NakamuraYouiti Kado
    • Nobuyuki NakamuraYouiti Kado
    • H04L12/26H04L12/56H04J3/24H04W40/00
    • H04W40/00H04L45/20H04L45/24H04W84/18
    • Each node or terminal in a communication network is capable of generating routing information for routing packets from an arbitrary source terminal to an arbitrary destination terminal on both a single-path route and a multipath route. The routing information is placed in packets transmitted to neighboring communication terminals, and analyzed in packets received from neighboring terminals. The single-path route is spatially or temporally separated from the multipath route so that the single-path route does not receive interference from the multipath route. Temporal separation may be effected by suspending the transmission of packets temporarily at each communication terminal on the multipath route. Spatial separation may be effected by using the routing information to designate different zones in the network, the single-path route being disposed in one zone, the multipath route in another zone.
    • 通信网络中的每个节点或终端能够生成用于在单路径路径和多路径路由上将来自任意源终端的分组路由到任意目的地终端的路由信息​​。 路由信息被放置在发送到相邻通信终端的分组中,并且以从相邻终端接收的分组进行分析。 单路径路由在空间或时间上与多路径路由分离,使得单路径路由不受到来自多路径路由的干扰。 可以通过暂时将分组的传输暂时停留在多径路由上的每个通信终端来实现时间分离。 空间分离可以通过使用路由信息来指定网络中的不同区域,单路径路由设置在一个区域中,多路径路由在另一个区域中来实现。