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    • 5. 发明申请
    • ADVANCED TELECOMMUNICATIONS ROUTER AND CROSSBAR SWITCH CONTROLLER
    • 高级电信路由器和交叉开关控制器
    • WO2004049645A1
    • 2004-06-10
    • PCT/US2002/037571
    • 2002-11-21
    • YANG, Brian, Hang WaiSIU, Kai-Yeung, SunnyLIEN, Wei-HanSINGH, Gaurav
    • YANG, Brian, Hang WaiSIU, Kai-Yeung, SunnyLIEN, Wei-HanSINGH, Gaurav
    • H04L12/50
    • H04L49/25H04L49/101H04L49/3027H04L49/3045
    • The invention relates to a crossbar switch controller (140) including an input terminal configured to receive a set of service request signals from a set of virtual output queues (602a-h) each comprising a set of packets, an arbiter including an arbitration pre-processor (604), arbitration post-processor (608) and arbiter controller, and an output terminal configured to receive a portion of the set of packets during an epoch. The arbiter pre-processor (694) is coupled to the input terminal and configured to represent the set of service request signals in the form of a matrix, wherein each service request signal is described by a row position M and a column position N. The invention further includes an arbiter circuit (Fig. 4a) configured to iteratively scan the matrix during the epoch and issue the set of grant signals to the virtual output queues to determine which service requests are granted.
    • 本发明涉及一种交叉开关控制器(140),其包括输入端子,该输入端子被配置为从包括一组分组的一组虚拟输出队列(602a-h)接收一组服务请求信号,仲裁器包括仲裁预处理 处理器(604),仲裁后处理器(608)和仲裁器控制器,以及被配置为在历元期间接收该组分组的一部分的输出终端。 仲裁预处理器(694)耦合到输入端并且被配置为以矩阵的形式表示服务请求信号集合,其中每个服务请求信号由行位置M和列位置N描述。 发明还包括仲裁器电路(图4a),其被配置为在时代期间迭代地扫描矩阵,并向虚拟输出队列发出一组授权信号,以确定哪些服务请求被授予。