Method for upstream priority lookup at physical interface within a wireless device
    1.
    发明授权
    Method for upstream priority lookup at physical interface within a wireless device 有权
    无线设备内物理接口上游优先级查找的方法

    公开(公告)号:US07990952B2

    公开(公告)日:2011-08-02

    申请号:US11889937

    申请日:2007-08-17

    CPC分类号: H04L12/2801

    摘要: A traffic prioritization system and method performs a coarse classification of upstream bursts at the physical interface of a wireless communications device. The wireless device monitors and controls communications with a plurality of remote wireless communications devices throughout a widely distributed network, including the Internet. The traffic prioritization system includes a burst receiver that receives and sends the upstream bursts to a classifier. At an appropriate time, the classifier receives the upstream bursts and queries a priority lookup table (LUT) to determine a priority classification. The priority classification is used to separate the bursts into two or more priority levels. The higher priority level is used to designate services having a low tolerance for delay, such as telephony. Upon classification, the upstream bursts are forwarded to one of several priority queues. Each priority queue corresponds to at least one priority level. The headend device services each priority queue such that the higher priority queues are serviced before the lower priority queues.

    摘要翻译: 流量优先化系统和方法在无线通信设备的物理接口处执行上游脉冲串的粗略分类。 无线设备在包括因特网的广泛分布的网络中监视和控制与多个远程无线通信设备的通信。 流量优先系统包括一个突发接收器,它接收和发送上行脉冲串到分类器。 在适当的时间,分类器接收上游脉冲串并查询优先级查找表(LUT)以确定优先级分类。 优先级分类用于将突发分为两个或更多个优先级。 较高优先级用于指定具有较低延迟容限的服务,例如电话。 在分类时,上行突发被转发到几个优先级队列之一。 每个优先级队列对应于至少一个优先级。 前端设备为每个优先级队列提供服务,使得较低优先级队列在较低优先级队列之前被服务。

    Method and apparatus for the reduction of upstream request processing latency in a cable modem termination system
    6.
    发明授权
    Method and apparatus for the reduction of upstream request processing latency in a cable modem termination system 有权
    用于减少有线调制解调器终端系统中的上游请求处理延迟的方法和装置

    公开(公告)号:US06909715B1

    公开(公告)日:2005-06-21

    申请号:US09652718

    申请日:2000-08-31

    IPC分类号: H04L12/28 H04L12/56

    摘要: Upstream requests such a bandwidth requests, are processed by CMTS out of order on a priority basis to reduce latency in responding to the request. Specifically, a cable modem termination system (CMTS) is connected to a plurality of cable modems by a cable plant. The CMTS has a burst receiver adapted to be connected to the cable plant to process upstream data packet units and bandwidth requests transmitted by the cable modems. Each packet includes a header that uniquely distinguishes the bandwidth requests from other data types. Packet data units are arranged in a first memory queue. Bandwidth requests are arranged in a second memory queue. The headers of the packets processed by the burst receiver are inspected as they arrive at the CMTS to determine if the packets are packet data units or bandwidth requests. Packet data units are routed to the first memory queue. Bandwidth requests are routed to the second memory queue. Bandwidth allocation MAP messages are generated from the bandwidth requests stored in the second queue and transmitted downstream to the cable modems. The packet data units stored in the first queue are coupled to a data output for further distribution.

    摘要翻译: 上行请求这样的带宽请求由CMTS按优先级顺序处理,以减少响应请求的延迟。 具体来说,电缆调制解调器终端系统(CMTS)由电缆设备连接到多个电缆调制解调器。 CMTS具有适于连接到电缆设备的突发接收器,以处理由电缆调制解调器发送的上行数据分组单元和带宽请求。 每个数据包包括一个能够唯一区分带宽请求与其他数据类型的头。 分组数据单元被布置在第一存储器队列中。 带宽请求被排列在第二个存储器队列中。 由突发接收器处理的分组的报头在到达CMTS时进行检查,以确定分组是分组数据单元还是带宽请求。 分组数据单元被路由到第一个存储器队列。 带宽请求被路由到第二个内存队列。 带宽分配MAP消息是从存储在第二个队列中的带宽请求产生的,并向下游发送到电缆调制解调器。 存储在第一队列中的分组数据单元被耦合到数据输出用于进一步分配。

    Systems for flexible wireless channel association
    7.
    发明授权
    Systems for flexible wireless channel association 有权
    灵活无线信道关联的系统

    公开(公告)号:US08018963B2

    公开(公告)日:2011-09-13

    申请号:US11822983

    申请日:2007-07-11

    IPC分类号: H04L12/28

    摘要: A media access controller (MAC) configurable for first and second modes of operation is provided. The MAC includes an uplink processor coupled to a plurality of uplink channels, a downlink processor coupled to a downlink, and a MAP parser coupled to the downlink processor. The downlink processor is configured to provide information to the downlink channel, including bandwidth allocation map (“MAP”) messages. Each MAP message is associated with one of the plurality of uplink channels or an uplink channel associated with one or more other MACs. The MAP parser is configured to control the MAC to receive information from a first set of one or more of the plurality of uplink channels in first mode and from a second set of one or more of the plurality of uplink channels in second mode.

    摘要翻译: 提供可配置用于第一和第二操作模式的媒体访问控制器(MAC)。 MAC包括耦合到多个上行链路信道的上行链路处理器,耦合到下行链路的下行链路处理器和耦合到下行链路处理器的MAP解析器。 下行链路处理器被配置为向下行链路信道提供信息,包括带宽分配映射(“MAP”)消息。 每个MAP消息与多个上行链路信道中的一个或与一个或多个其他MAC相关联的上行链路信道相关联。 MAP解析器被配置为控制MAC以第一模式从多个上行链路信道中的一个或多个第一集合接收信息,并且以第二模式从多个上行链路信道中的一个或多个的第二集合接收信息。

    Apparatus for the reduction of uplink request processing latency in a wireless communication system
    8.
    发明授权
    Apparatus for the reduction of uplink request processing latency in a wireless communication system 有权
    用于在无线通信系统中减少上行链路请求处理等待时间的装置

    公开(公告)号:US07822037B2

    公开(公告)日:2010-10-26

    申请号:US11835251

    申请日:2007-08-07

    IPC分类号: H04L12/28

    摘要: Upstream requests such a bandwidth requests, are processed by CMTS out of order on a priority basis to reduce latency in responding to the request. Specifically, a cable modem termination system (CMTS) is connected to a plurality of cable modems by a cable plant. The CMTS has a burst receiver adapted to be connected to the cable plant to process upstream data packet units and bandwidth requests transmitted by the cable modems. Each packet includes a header that uniquely distinguishes the bandwidth requests from other data types. Packet data units are arranged in a first memory queue. Bandwidth requests are arranged in a second memory queue. The headers of the packets processed by the burst receiver are inspected as they arrive at the CMTS to determine if the packets are packet data units or bandwidth requests. Packet data units are routed to the first memory queue. Bandwidth requests are routed to the second memory queue. Bandwidth allocation MAP messages are generated from the bandwidth requests stored in the second queue and transmitted downstream to the cable modems. The packet data units stored in the first queue are coupled to a data output for further distribution.

    摘要翻译: 上行请求这样的带宽请求由CMTS按优先级顺序处理,以减少响应请求的延迟。 具体来说,电缆调制解调器终端系统(CMTS)由电缆设备连接到多个电缆调制解调器。 CMTS具有适于连接到电缆设备的突发接收器,以处理由电缆调制解调器发送的上行数据分组单元和带宽请求。 每个数据包包括一个能够唯一区分带宽请求与其他数据类型的头。 分组数据单元被布置在第一存储器队列中。 带宽请求被排列在第二个存储器队列中。 由突发接收器处理的分组的报头在到达CMTS时进行检查,以确定分组是分组数据单元还是带宽请求。 分组数据单元被路由到第一个存储器队列。 带宽请求被路由到第二个内存队列。 带宽分配MAP消息是从存储在第二个队列中的带宽请求产生的,并向下游发送到电缆调制解调器。 存储在第一队列中的分组数据单元被耦合到数据输出用于进一步分配。

    System and method for the synchronization and distribution of telephony timing information in a cable modem network
    10.
    发明授权
    System and method for the synchronization and distribution of telephony timing information in a cable modem network 有权
    用于在电缆调制解调器网络中同步和分发电话定时信息的系统和方法

    公开(公告)号:US07339956B2

    公开(公告)日:2008-03-04

    申请号:US10967852

    申请日:2004-10-18

    IPC分类号: H04J3/06

    摘要: A method for synchronizing clocks in a packet transport network. The method comprises, receiving an external network clock at a central packet network node and transmitting timing information to a plurality of packet network devices, the timing information based upon the external network clock. The method further comprises, transmitting and receiving data that is synchronized to the timing information to a plurality of connected packet network devices. And finally, delivery of packets to an external interface via a packet network that contains data synchronized to the external network clock.

    摘要翻译: 一种用于在分组传输网络中同步时钟的方法。 该方法包括:在中央分组网络节点处接收外部网络时钟,并将定时信息发送给多个分组网络设备,基于外部网络时钟的定时信息。 该方法还包括:向多个连接的分组网络设备发送和接收与定时信息同步的数据。 最后,通过包含与外部网络时钟同步的数据的分组网络将数据包传送到外部接口。