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42. 发明授权

US06891856B2 Delay-compensated timeslot assignment method and system for point-to-multipoint communication networks 有权
标题翻译：延迟补偿时隙分配方法和系统，用于点对多点通信网络
公开(公告)号：US06891856B2
公开(公告)日：2005-05-10
申请号：US09761983
申请日：2001-01-17
申请人： Masaki Umayabashi
发明人： Masaki Umayabashi
IPC分类号： H04L12/44 , H04J3/16 , H04L12/70 , H04Q11/00 , H04Q11/04
CPC分类号： H04Q11/0478 , H04J3/1682 , H04L2012/5605 , H04L2012/561 , H04L2012/5642 , H04L2012/5675 , H04L2012/568 , H04L2012/5681 , H04Q11/0067
摘要： In a communication network, end-user systems are connected via a common transmission medium to a timeslot assignment unit. Each end-user system has a buffer for storing packets, and a queue length detector for detecting a queue length of the stored packets. The end-user system forwards packets on assigned timeslots to the network and transmits a signal for indicating the detected queue length to the assignment unit. The timeslot assignment unit maintains timeslot records to store count numbers of assigned timeslots, determines a total count number of timeslots assigned to each end-user system during a period corresponding to the delay time of the unit, and receives a queue length signal from each end-user system. From the total count number and the queue length a virtual queue length is determined for indicating the number of packets to which timeslots are still not assigned. Based on the virtual queue length, timeslots are assigned to each end-user system.
摘要翻译：在通信网络中，终端用户系统经由公共传输介质连接到时隙分配单元。每个最终用户系统具有用于存储分组的缓冲器，以及用于检测所存储的分组的队列长度的队列长度检测器。最终用户系统将分配的时隙上的分组转发到网络，并向分配单元发送用于指示检测到的队列长度的信号。时隙分配单元维护时隙记录以存储分配的时隙的计数号，确定在与该单元的延迟时间相对应的时段期间分配给每个最终用户系统的总时隙数，并从每一端接收队列长度信号 - 用户系统根据总计数和队列长度，确定虚拟队列长度以指示时隙尚未分配到的分组数。基于虚拟队列长度，将时隙分配给每个最终用户系统。

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