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    • 27. 发明授权
    • Using sparse feedback to increase bandwidth efficiency in high delay, low bandwidth environment
    • 使用稀疏反馈,在高延迟,低带宽环境下提高带宽效率
    • US06542931B1
    • 2003-04-01
    • US09434384
    • 1999-11-05
    • Khiem LeHaihong ZhengZhigang LiuChristoph Clanton
    • Khiem LeHaihong ZhengZhigang LiuChristoph Clanton
    • G06F1516
    • H04L47/10H04L1/1621H04L1/1809H04L47/26H04L47/323
    • A method and apparatus for eliminating the inefficient use of network bandwidth cause by numerous acknowledgment transmitted by the receiver to the transmitter by providing sparse feedback from the receiver to the transmitter indicating receipt of packets having headers to be used as reference headers. In the invention, upon receipt in the receiver of a packet having a reference header, a feedback is provided to the transmitter indicating receipt of the packet having the reference header. Thereafter, the receiver waits a predetermined period of time before providing another feedback in response to another packet having a reference header. The predetermined period of time allows time for the feedback to be received by the transmitter and for information from the transmitter indicating receipt of the feedback to be received by the receiver.
    • 通过从接收机向发射机提供稀疏反馈指示接收到具有要用作参考头的报头的分组,通过由接收机向发射机发送的许多确认消除网络带宽的低效使用的方法和装置。 在本发明中,在接收到具有参考头部的分组的接收机中时,向发射机提供反馈,指示接收到具有参考头部的分组。 此后,接收机在提供另一反馈之前等待预定的时间段,以响应于具有参考头部的另一分组。 预定的时间段允许发送器接收反馈的时间,并且允许来自发射机的信息指示接收机接收的反馈的时间。
    • 30. 发明授权
    • Method and apparatus for providing overlay to support third generation cellular services
    • 用于提供覆盖以支持第三代蜂窝服务的方法和装置
    • US06230005B1
    • 2001-05-08
    • US09164554
    • 1998-10-01
    • Khiem LeLiangchi (Alan) HsuAtte Länsisalmi
    • Khiem LeLiangchi (Alan) HsuAtte Länsisalmi
    • H04M342
    • H04W92/02H04W36/0066
    • An overlay to an existing cellular switching structure to provide post-second generation services without the need to make modifications or updates to the existing infrastructure is disclosed. The overlay preserves second generation switching while providing post-second generation services. The overlay includes a post-second generation infrastructure for providing processing of post-second generation communication services, a first interface, coupled to the post-second generation infrastructure, for providing an access interface to a base station subsystem and processing base station subsystem signaling based upon a type of service and a type of call flow associated with the received signaling from the base station subsystem, and a second interface, coupled to the post-second generation infrastructure, for providing an inter-system interface to a signaling network and processing inter-system signaling between the signaling network, the first interface, the existing switching infrastructure and the post-second generation infrastructure. The first interface comprises an access interface manager, the access interface manager outputting access interface signaling based on base station subsystem signaling received from the base station subsystem according to a type of service and a type of call flow associated with the received base station subsystem signaling. The access interface manager further comprises a base station subsystem manager and a protocol interworking manager and the second interface includes an inter-system interface manager. The post-second generation infrastructure includes a general packet radio service system including a packet handoff manager, a serving general packet radio service support node, and a gateway general packet radio service support node.
    • 公开了现有的蜂窝交换结构的覆盖以提供后二代业务,而不需要对现有基础设施进行修改或更新。 覆盖保留第二代切换,同时提供后二代服务。 覆盖层包括用于提供后二代通信服务的处理的后第二代基础设施,耦合到后第二代基础设施的第一接口,用于提供到基站子系统的接入接口和基于基站子系统信令的处理 根据与来自基站子系统的接收到的信令相关联的一种服务和一种类型的呼叫流程,以及耦合到后第二代基础设施的第二接口,用于向信令网络提供系统间接口, 信令网络,第一接口,现有交换基础设施和后二代基础设施之间的系统信令。 所述第一接口包括接入接口管理器,所述接入接口管理器根据与所接收的基站子系统信令相关联的业务类型和呼叫流的类型,基于从所述基站子系统接收到的基站子系统信令来输出接入接口信令。 访问接口管理器还包括基站子系统管理器和协议互通管理器,并且第二接口包括系统间接口管理器。 后第二代基础设施包括包括分组切换管理器,服务通用分组无线电服务支持节点和网关通用分组无线电服务支持节点的通用分组无线电服务系统。