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1.发明授权公开(公告)号：US07899034B2
公开(公告)日：2011-03-01
申请号：US11701509
申请日：2007-02-02
IPC分类号： H04L12/66
CPC分类号： H04L25/03343 , H04B1/1036 , H04J3/0664 , H04J3/067 , H04J3/0682 , H04L12/2801 , H04L2025/03808
摘要： A plurality of base station devices are linked together and synchronized to facilitate communication between the respective base station devices and respective downlink subscriber stations. According to one embodiment of the invention, one of the base station devices is designated as a master device, and the other base station devices are designated as slave devices. The respective base station devices are connected to each other by means of a synchronization bus. The master base station device then generates and broadcasts a future time stamp value, which is received by the respective slave base station devices. When the time stamp counter in the master base station device reaches the transmitted value, a control signal is broadcast over the synchronization bus. The slave base station devices then retrieve the time stamp value and reset their respective local time stamp counters to the received value. In this manner, the base station devices are synchronized.
摘要翻译： 多个基站设备被链接在一起并被同步以便于各个基站设备和相应的下行链路用户站之间的通信。 根据本发明的一个实施例，基站设备之一被指定为主设备，而其它基站设备被指定为从设备。 各个基站装置通过同步总线相互连接。 主基站装置然后生成并广播由各个从基站装置接收的未来时间戳值。 当主基站装置中的时间戳计数器达到发送值时，通过同步总线广播控制信号。 然后，从基站设备检索时间戳值并将其各自的本地时间戳计数器重置为接收的值。 以这种方式，基站装置同步。
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2.发明授权Method and apparatus for the synchronization of multiple cable modem termination system devices 有权用于同步多个电缆调制解调器端接系统设备的方法和装置公开(公告)号：US07035251B2
公开(公告)日：2006-04-25
申请号：US10856829
申请日：2004-06-01
IPC分类号： H04L12/66
CPC分类号： H04L25/03343 , H04B1/1036 , H04J3/0664 , H04J3/067 , H04J3/0682 , H04L12/2801 , H04L2025/03808
摘要： A plurality of CMTS devices are linked together and synchronized to facilitate communication between the respective CMTS devices and respective downstream cable modems. According to one embodiment of the invention, one of the CMTS devices is designated as a master device, and the other CMTS devices are designated as slave devices. The respective CMTS devices are connected to each other by means of a synchronization bus. The master CMTS device then generates and broadcasts a future time stamp value, which is received by the respective slave CMTS devices. When the time stamp counter in the master CMTS device reaches the transmitted value, a control signal is broadcast over the synchronization bus. The slave CMTS devices then retrieve the time stamp value and reset their respective local time stamp counters to the received value. In this manner, the CMTS devices are synchronized.
摘要翻译： 多个CMTS设备被链接在一起并被同步以促进各个CMTS设备和相应的下游电缆调制解调器之间的通信。 根据本发明的一个实施例，CMTS设备中的一个被指定为主设备，并且其他CMTS设备被指定为从设备。 相应的CMTS设备通过同步总线相互连接。 然后，主CMTS设备生成并广播由相应从属CMTS设备接收的将来的时间戳值。 当主CMTS设备中的时间戳计数器达到发送值时，通过同步总线广播控制信号。 从属CMTS设备然后检索时间戳值并将其各自的本地时间戳计数器重置为接收的值。 以这种方式，CMTS设备被同步。
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3.发明授权Method and apparatus for the synchronization of multiple cable modem termination system devices 有权用于同步多个电缆调制解调器端接系统设备的方法和装置公开(公告)号：US06760316B1
公开(公告)日：2004-07-06
申请号：US09653155
申请日：2000-08-31
IPC分类号： H04B7212
CPC分类号： H04L25/03343 , H04B1/1036 , H04J3/0664 , H04J3/067 , H04J3/0682 , H04L12/2801 , H04L2025/03808
摘要： A plurality of CMTS devices are linked together and synchronized to facilitate communication between the respective CMTS devices and respective downstream cable modems. According to one embodiment of the invention, one of the CMTS devices is designated as a master device, and the other CMTS devices are designated as slave devices. The respective CMTS devices are connected to each other by means of a synchronization bus. The master CMTS device then generates and broadcasts a future time stamp value, which is received by the respective slave CMTS devices. When the time stamp counter in the master CMTS device reaches the transmitted value, a control signal is broadcast over the synchronization bus. The slave CMTS devices then retrieve the time stamp value and reset their respective local time stamp counters to the received value. In this manner, the CMTS devices are synchronized.
摘要翻译： 多个CMTS设备被链接在一起并被同步以促进各个CMTS设备和相应的下游电缆调制解调器之间的通信。 根据本发明的一个实施例，CMTS设备中的一个被指定为主设备，并且其他CMTS设备被指定为从设备。 相应的CMTS设备通过同步总线相互连接。 然后，主CMTS设备生成并广播由相应从属CMTS设备接收的将来的时间戳值。 当主CMTS设备中的时间戳计数器达到发送值时，通过同步总线广播控制信号。 从属CMTS设备然后检索时间戳值并将其各自的本地时间戳计数器重置为接收的值。 以这种方式，CMTS设备被同步。
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4.发明授权公开(公告)号：US08005072B2
公开(公告)日：2011-08-23
申请号：US11392806
申请日：2006-03-30
IPC分类号： H04L12/66
CPC分类号： H04L25/03343 , H04B1/1036 , H04J3/0664 , H04J3/067 , H04J3/0682 , H04L12/2801 , H04L2025/03808
摘要： A plurality of CMTS devices are linked together and synchronized to facilitate communication between the respective CMTS devices and respective downstream cable modems. According to one embodiment of the invention, one of the CMTS devices is designated as a master device, and the other CMTS devices are designated as slave devices. The respective CMTS devices are connected to each other by means of a synchronization bus. The master CMTS device then generates and broadcasts a future time stamp value, which is received by the respective slave CMTS devices. When the time stamp counter in the master CMTS device reaches the transmitted value, a control signal is broadcast over the synchronization bus. The slave CMTS devices then retrieve the time stamp value and reset their respective local time stamp counters to the received value. In this manner, the CMTS devices are synchronized.
摘要翻译： 多个CMTS设备被链接在一起并被同步以促进各个CMTS设备和相应的下游电缆调制解调器之间的通信。 根据本发明的一个实施例，CMTS设备中的一个被指定为主设备，并且其他CMTS设备被指定为从设备。 相应的CMTS设备通过同步总线相互连接。 然后，主CMTS设备生成并广播由相应从属CMTS设备接收的将来的时间戳值。 当主CMTS设备中的时间戳计数器达到发送值时，通过同步总线广播控制信号。 从属CMTS设备然后检索时间戳值并将其各自的本地时间戳计数器重置为接收的值。 以这种方式，CMTS设备被同步。
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5.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
申请人： Lisa V. Denney , Anders Hebsgaard , Robert J. Lee
发明人： Lisa V. Denney , Anders Hebsgaard , Robert J. Lee
IPC分类号： H04L12/28
CPC分类号： H04L47/2441 , H04L12/2801 , H04L12/66 , H04L47/15 , H04L47/35 , H04L47/70 , H04L47/788 , H04L47/821
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。
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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：US07782855B2
公开(公告)日：2010-08-24
申请号：US11121116
申请日：2005-05-04
申请人： Lisa V. Denney , Anders Hebsgaard , Robert J. Lee
发明人： Lisa V. Denney , Anders Hebsgaard , Robert J. Lee
IPC分类号： H04L12/28
CPC分类号： H04L47/2441 , H04L12/2801 , H04L12/66 , H04L47/15 , H04L47/35 , H04L47/70 , H04L47/788 , H04L47/821
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。
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7.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
申请人： Lisa V. Denney , Anders Hebsgaard , Robert J. Lee
发明人： Lisa V. Denney , Anders Hebsgaard , Robert J. Lee
CPC分类号： H04L47/2441 , H04L12/2801 , H04L12/66 , H04L47/15 , H04L47/35 , H04L47/70 , H04L47/788 , H04L47/821
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。
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8.发明授权公开(公告)号：US07006535B2
公开(公告)日：2006-02-28
申请号：US09933764
申请日：2001-08-22
申请人： Lisa V. Denney , David R. Dworkin
发明人： Lisa V. Denney , David R. Dworkin
CPC分类号： H04J3/0682
摘要： A method and system for allocating an initial maintenance request (IMR) for an upstream channel in a communications system, wherein the communication system includes a headend and at least one remote device associated with the channel. A first propagation delay from the headend to the remote device having the greatest delay is determined. Likewise, a second propagation delay from the headend to the remote device experiencing the least delay is determined. The IMR is then defined to be shorter than the first propagation delay and at least as long as the difference between the two propagation delays. The starting point of the IMR is established by modifying the clock output of the headend. A modification value is added to the headend clock output. The modification value corresponds to a time interval that can be as long as the propagation delay from the headend to the remote having the shortest delay.
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公开(公告)号：US07843847B2
公开(公告)日：2010-11-30
申请号：US11584676
申请日：2006-10-23
申请人： Thomas J. Quigley , Jonathan S. Min , Lisa V. Denney , Henry Samueli , Sean F. Nazareth , Feng Chen , Fang Lu , Christopher R. Jones
发明人： Thomas J. Quigley , Jonathan S. Min , Lisa V. Denney , Henry Samueli , Sean F. Nazareth , Feng Chen , Fang Lu , Christopher R. Jones
CPC分类号： H04L41/142 , H04B1/1027 , H04B1/1036 , H04J3/0655 , H04J3/0682 , H04L1/0003 , H04L1/0009 , H04L1/0045 , H04L1/0061 , H04L1/203 , H04L5/003 , H04L5/1446 , H04L12/2801 , H04L25/03019 , H04L25/03057 , H04L25/03343 , H04L27/0014 , H04L27/2601 , H04L27/34 , H04L2025/03808 , H04W72/085 , Y02D50/10
摘要： A number of features for enhancing the performance of a communication system, in which data is transmitted between a base station and a plurality of subscriber stations located different distances from the base station, are presented. The power transmission level, slot timing, and equalization of the subscriber stations are set by a ranging process. Data is transmitted by the subscriber stations in fragmented form. Various measures are taken to make transmission from the subscriber stations robust. The uplink data transmission is controlled to permit multiple access from the subscriber stations.
摘要翻译： 提供了用于增强在基站与位于距离基站不同距离的多个用户站之间传送数据的通信系统的性能的许多特征。 用户站的功率传输级别，时隙定时和均衡由测距过程来设置。 数据由用户站以分段形式传输。 采取各种措施使得用户站的传输稳健。 控制上行链路数据传输以允许来自订户站的多次接入。
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公开(公告)号：US07512154B2
公开(公告)日：2009-03-31
申请号：US11545632
申请日：2006-10-11
申请人： Thomas J. Quigley , Jonathan S. Min , Lisa V. Denney , Henry Samueli , Sean F. Nazareth , Feng Chen , Fang Lu , Christopher R. Jones
发明人： Thomas J. Quigley , Jonathan S. Min , Lisa V. Denney , Henry Samueli , Sean F. Nazareth , Feng Chen , Fang Lu , Christopher R. Jones
CPC分类号： H04L41/142 , H04B1/1027 , H04B1/1036 , H04J3/0655 , H04J3/0682 , H04L1/0003 , H04L1/0009 , H04L1/0045 , H04L1/0061 , H04L1/203 , H04L5/003 , H04L5/1446 , H04L12/2801 , H04L25/03019 , H04L25/03057 , H04L25/03343 , H04L27/0014 , H04L27/2601 , H04L27/34 , H04L2025/03808 , H04W72/085 , Y02D50/10
摘要： A number of features for enhancing the performance of a wireless communication system, in which data is transmitted between a central node and a plurality of subscriber nodes located remotely with respect to the central node, are presented. The power transmission level, slot timing, and equalization of the subscriber nodes are set by a ranging process. Data is transmitted by the subscriber nodes in fragmented form. Various measures are taken to make transmission from the subscriber nodes robust. The uplink data transmission is controlled to permit multiple access from the subscriber nodes.
摘要翻译： 提供了用于增强无线通信系统的性能的许多特征，其中数据在中央节点和相对于中心节点远程定位的多个订户节点之间传送。 通过测距过程设置用户节点的功率传输级别，时隙定时和均衡。 数据由用户节点以分段形式传输。 采取各种措施使得用户节点的传输稳健。 控制上行链路数据传输以允许来自用户节点的多次接入。
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