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1. 发明申请

US20100021172A1 Transporting Upstream Data in a Passive Optical Network 有权
标题翻译：在无源光网络中传输上行数据
公开(公告)号：US20100021172A1
公开(公告)日：2010-01-28
申请号：US12179745
申请日：2008-07-25
申请人： Thai-Bao H. Kien , Amin Farvez , Richard J. Futch , Richard T. Causey , Michael Jones
发明人： Thai-Bao H. Kien , Amin Farvez , Richard J. Futch , Richard T. Causey , Michael Jones
IPC分类号： H04J14/08
CPC分类号： H04J3/1694
摘要： Upstream data handling in a digital Data Over Cable Service Interface Specification (DOCSIS) passive optical network (DPON). Embodiments include receiving at a headend, in an upstream path over an optical network, a plurality of digitized and serialized DPON upstream packets respectively distributed in a time division multiplexed fashion, wherein each DPON upstream packet includes a header, a trailer and a payload, monitoring the optical network for energy in the upstream path, including energy associated with a header and a trailer of respective DPON upstream packets, controlling a bit stuffer that adds bits to the upstream path to (1) stop adding bits to the upstream path when energy is detected in the upstream path and (2) resume adding bits to the upstream path after an end of a trailer of a given DPON upstream packet has been detected, and removing the header and the trailer of the respective DPON upstream packets. The resulting original payload is then digital to analog converted, and the resulting data is passed to, e.g., a cable modem termination system (CMTS).
摘要翻译：无线光网络（DPON）中的数字数据数据覆盖服务接口规范（DOCSIS）中的上行数据处理。实施例包括在光网络上的上游路径中接收以时分多路复用方式分别分布的多个数字化和序列化的DPON上行分组，其中每个DPON上行分组包括报头，尾部和有效载荷，监视上行路径中能量的光网络，包括与各个DPON上行分组的头部和尾部相关联的能量，控制向上游路径添加位的位填充器，以便（1）当能量为停止向上游路径添加位时在上游路径中检测到，并且（2）在已经检测到给定DPON上行分组的尾部的结束之后，继续向上游路径添加比特，并且去除相应DPON上行分组的报头和尾部。所得到的原始有效载荷然后是数字到模拟转换的，并且所得到的数据被传递到例如电缆调制解调器终端系统（CMTS）。

2. 发明授权

US07590145B2 Multiplexing octets from a data flow over MPEG packets 有权
标题翻译：通过MPEG数据包从数据流中复用八位字节
公开(公告)号：US07590145B2
公开(公告)日：2009-09-15
申请号：US10881258
申请日：2004-06-30
申请人： Richard J. Futch , Thai-Bao H. Kien , Bin Yang , Christopher J. Topazi
发明人： Richard J. Futch , Thai-Bao H. Kien , Bin Yang , Christopher J. Topazi
IPC分类号： H04J3/16
CPC分类号： H04N21/6118 , H04L5/1438 , H04L12/2801 , H04L27/2602 , H04N21/2383 , H04N21/42676 , H04N21/4382 , H04N21/6168
摘要： Multiplexing of information from a plurality of information flows into fixed-length packets such as, but not limited to, MPEG packets allows efficient utilization of bandwidth and also can be used to reduce transmission latency. In addition, utilizing MPEG packets and transport streams for octet multiplexing allows the packets carrying octet-multiplexed data to easily be integrated with other MPEG packets for other services that are commonly found in cable transmission networks of all coax, hybrid fiber coax, and/or all fiber. Moreover, the multiplexing techniques described herein will work in both wired (or constrained media) and wireless (or free-space propagation) environments. The multiplexing/demultiplexing of octets using MPEG packets generally is described by mappings that specify the use of octets in MPEG packets. Changes to allocations in a map generally should be propagated in a way that reliably ensures that both the transmitter and receiver have a consistent view of the octet mappings.
摘要翻译：从多个信息中将信息多路复用到固定长度分组中，例如但不限于MPEG分组，允许有效利用带宽，并且还可以用于减少传输等待时间。另外，利用MPEG分组和传输流进行八位字节复用允许携带八位字节复用数据的分组容易地与其他所有同轴电缆，混合光纤同轴电缆的有线传输网络中常见的其他服务的其他MPEG分组集成，和/或所有纤维。此外，本文描述的复用技术将在有线（或约束介质）和无线（或自由空间传播）环境中起作用。使用MPEG分组的八位字节的复用/解复用通常由指定在MPEG分组中使用八位字节的映射来描述。映射中对分配的更改通常应以可靠地确保发送器和接收器都具有八位字节映射的一致视图的方式进行传播。

3. 发明授权

US07965722B2 Communication of active data flows between a transport modem termination system and cable transport modems 有权
标题翻译：传输调制解调器终端系统和电缆传输调制解调器之间的活动数据流的通信
公开(公告)号：US07965722B2
公开(公告)日：2011-06-21
申请号：US12116491
申请日：2008-05-07
申请人： Richard J. Futch , Thai-Bao H. Kien , Bin Yang , Christopher J. Topazi
发明人： Richard J. Futch , Thai-Bao H. Kien , Bin Yang , Christopher J. Topazi
IPC分类号： H04L12/56 , H04J3/00
CPC分类号： H04N21/6118 , H04L5/1438 , H04L12/2801 , H04L27/2602 , H04N21/2383 , H04N21/42676 , H04N21/4382 , H04N21/6168
摘要： Multiplexing of information from a plurality of information flows into fixed-length packets such as, but not limited to, MPEG packets allows efficient utilization of bandwidth and also can be used to reduce transmission latency. In addition, utilizing MPEG packets and transport streams for octet multiplexing allows the packets carrying octet-multiplexed data to easily be integrated with other MPEG packets for other services that are commonly found in cable transmission networks of all coax, hybrid fiber coax, and/or all fiber. The multiplexing/demultiplexing of octets using MPEG packets generally is described by mappings that specify the use of octets in MPEG packets. Changes to allocations in a map generally should be propagated in a way that reliably ensures that both the transmitter and receiver have a consistent view of the octet mappings.
摘要翻译：从多个信息中将信息多路复用到固定长度分组中，例如但不限于MPEG分组，允许有效利用带宽，并且还可以用于减少传输等待时间。另外，利用MPEG分组和传输流进行八位字节复用允许携带八位字节复用数据的分组容易地与其他所有同轴电缆，混合光纤同轴电缆的有线传输网络中常见的其他服务的其他MPEG分组集成，和/或所有纤维。使用MPEG分组的八位字节的复用/解复用通常由指定在MPEG分组中使用八位字节的映射来描述。映射中对分配的更改通常应以可靠地确保发送器和接收器都具有八位字节映射的一致视图的方式进行传播。

4. 发明授权

US07729379B2 Mapping of bit streams into MPEG frames 有权
标题翻译：将比特流映射到MPEG帧中
公开(公告)号：US07729379B2
公开(公告)日：2010-06-01
申请号：US10245032
申请日：2002-09-17
申请人： Donald C. Sorenson , Richard J. Futch
发明人： Donald C. Sorenson , Richard J. Futch
IPC分类号： H04J3/24
CPC分类号： H04N21/4382 , H04J4/00 , H04L7/041 , H04L12/2801 , H04L27/2657 , H04L29/06027 , H04L65/1016 , H04N7/10 , H04N7/17309 , H04N21/2362 , H04N21/2365 , H04N21/2383 , H04N21/4305 , H04N21/437 , H04N21/6118 , H04N21/6168
摘要： An architecture for providing high-speed access over frequency-division multiplexed (FDM) channels allows transmission of ethernet frames and/or other data across a cable transmission network or other form of FDM transport. The architecture involves downstream and upstream FDM multiplexing techniques to allow contemporaneous, parallel communications across a plurality of frequency channels. Each downstream data flow is fragmented into individual octets that are multiplexed into MPEG packets. An MPEG packet may carry the octets for a plurality of individual data flows. Furthermore, the MPEG packets may be frequency-division multiplexed across and may be contemporaneously communicated over a plurality of frequency channels. Also, the octets from a data flow do not necessarily have to use consecutive octets in an MPEG packet. Instead, consecutive octets in an MPEG packet may carry information for two different data flows. Thus, in an MPEG packet there may be intervening octets that might be allocated to other data flows between the octets of an ethernet frame or other type of data from one data flow. In addition, the data flows carried in MPEG packets may support one or a plurality of client devices. Therefore, an MPEG packet may be used to time-division multiplex multiple data flows to one or a plurality of client devices.
摘要翻译：用于通过频分复用（FDM）信道提供高速接入的架构允许通过有线传输网络或其它形式的FDM传输传输以太网帧和/或其他数据。该架构涉及下游和上游FDM复用技术，以允许跨多个频率信道同时进行并行通信。每个下游数据流被分段成单个八位字节，被复用成MPEG数据包。 MPEG分组可携带多个单独数据流的八比特组。此外，MPEG分组可以跨越频分复用并且可以在多个频率信道上同时传送。此外，来自数据流的八位字节不一定必须在MPEG分组中使用连续的八位字节。相反，MPEG分组中的连续八位字节可以携带两个不同数据流的信息。因此，在MPEG分组中，可能存在可能被分配给来自一个数据流的以太网帧的八位字节或其他类型的数据之间的其他数据流的中间八位字节。此外，MPEG分组中携带的数据流可以支持一个或多个客户端设备。因此，可以使用MPEG分组来将多个数据流时分复用到一个或多个客户端设备。

5. 发明授权

US08363679B2 Clock synchronization in a bidirectional network 有权
标题翻译：双向网络中的时钟同步
公开(公告)号：US08363679B2
公开(公告)日：2013-01-29
申请号：US12422593
申请日：2009-04-13
申请人： Donald C. Sorenson , Jiening Ao , Steven E. Blashewski , John W. Brickell , Florin Farcas , Richard J. Futch , Joseph Graham Mobley , John A. Ritchie, Jr. , Lamar E. West, Jr.
发明人： Donald C. Sorenson , Jiening Ao , Steven E. Blashewski , John W. Brickell , Florin Farcas , Richard J. Futch , Joseph Graham Mobley , John A. Ritchie, Jr. , Lamar E. West, Jr.
IPC分类号： H04J3/06
CPC分类号： H04N21/4382 , H04J4/00 , H04L7/041 , H04L12/2801 , H04L29/06027 , H04L65/1016 , H04N7/10 , H04N7/17309 , H04N21/2362 , H04N21/2365 , H04N21/2383 , H04N21/4305 , H04N21/437 , H04N21/6118 , H04N21/6168
摘要： An architecture for providing high-speed access over frequency-division multiplexed (FDM) channels allows transmission of Ethernet frames and/or other data across a cable transmission network or other form of FDM transport. The architecture involves downstream and upstream FDM multiplexing techniques to allow contemporaneous, parallel communications across a plurality of frequency channels. Furthermore, the architecture allows a central concentrator to support a plurality of remote devices that each has guaranteed bandwidth through connection-oriented allocations of bi-directional data flows. The upstream and downstream bandwidth allocation can support symmetrical bandwidth as well as asymmetrical bandwidth in either direction. As a local network, the architecture supports guaranteed bandwidth for delivery of data flows to a plurality of host devices.
摘要翻译：用于通过频分复用（FDM）信道提供高速接入的架构允许通过有线传输网络或其他形式的FDM传输传输以太网帧和/或其他数据。该架构涉及下游和上游FDM复用技术，以允许跨多个频率信道同时进行并行通信。此外，该架构允许中央集线器支持多个远程设备，每个远程设备通过双向数据流的面向连接的分配来保证带宽。上行和下行带宽分配可以支持任意方向的对称带宽以及非对称带宽。作为本地网络，该架构支持用于向多个主机设备传送数据流的保证带宽。

6. 发明授权

US08107814B2 Transporting upstream data in a passive optical network 有权
标题翻译：在无源光网络中传输上行数据
公开(公告)号：US08107814B2
公开(公告)日：2012-01-31
申请号：US12179745
申请日：2008-07-25
申请人： Thai-Bao H. Kien , Amin Farvez , Richard J. Futch , Richard T. Causey , Michael Jones
发明人： Thai-Bao H. Kien , Amin Farvez , Richard J. Futch , Richard T. Causey , Michael Jones
IPC分类号： H04J14/00
CPC分类号： H04J3/1694
摘要： Upstream data handling in a digital Data Over Cable Service Interface Specification (DOCSIS) passive optical network (DPON). Embodiments include receiving at a headend, in an upstream path over an optical network, a plurality of digitized and serialized DPON upstream packets respectively distributed in a time division multiplexed fashion, wherein each DPON upstream packet includes a header, a trailer and a payload, monitoring the optical network for energy in the upstream path, including energy associated with a header and a trailer of respective DPON upstream packets, controlling a bit stuffer that adds bits to the upstream path to (1) stop adding bits to the upstream path when energy is detected in the upstream path and (2) resume adding bits to the upstream path after an end of a trailer of a given DPON upstream packet has been detected, and removing the header and the trailer of the respective DPON upstream packets. The resulting original payload is then digital to analog converted, and the resulting data is passed to, e.g., a cable modem termination system (CMTS).
摘要翻译：无线光网络（DPON）中的数字数据数据覆盖服务接口规范（DOCSIS）中的上行数据处理。实施例包括在光网络上的上游路径中接收以时分多路复用方式分别分布的多个数字化和序列化的DPON上行分组，其中每个DPON上行分组包括报头，尾部和有效载荷，监视上行路径中能量的光网络，包括与各个DPON上行分组的头部和尾部相关联的能量，控制向上游路径添加位的位填充器，以便（1）当能量为停止向上游路径添加位时在上游路径中检测到，并且（2）在已经检测到给定DPON上行分组的尾部的结束之后，继续向上游路径添加比特，并且去除相应DPON上行分组的报头和尾部。所得到的原始有效载荷然后是数字到模拟转换的，并且所得到的数据被传递到例如电缆调制解调器终端系统（CMTS）。

7. 发明授权

US07933288B2 Multi-carrier frequency-division multiplexing (FDM) architecture for high speed digital service 有权
标题翻译：用于高速数字业务的多载波频分复用（FDM）架构
公开(公告)号：US07933288B2
公开(公告)日：2011-04-26
申请号：US11953925
申请日：2007-12-11
申请人： Donald C. Sorenson , Jiening Ao , Steven E. Blashewski , John W. Brickell , Florin Farcas , Richard J. Futch , Joseph Graham Mobley , John A. Ritchie, Jr. , Lamar E. West, Jr.
发明人： Donald C. Sorenson , Jiening Ao , Steven E. Blashewski , John W. Brickell , Florin Farcas , Richard J. Futch , Joseph Graham Mobley , John A. Ritchie, Jr. , Lamar E. West, Jr.
IPC分类号： H04B7/212
CPC分类号： H04N21/4382 , H04J4/00 , H04L7/041 , H04L12/2801 , H04L12/403 , H04L27/2657 , H04L29/06027 , H04L65/1016 , H04N7/10 , H04N7/17309 , H04N21/2362 , H04N21/2365 , H04N21/2383 , H04N21/4305 , H04N21/437 , H04N21/6118 , H04N21/6168
摘要： An architecture for providing high-speed access over frequency-division multiplexed (FDM) channels allows transmission of ethernet frames and/or other data across a cable transmission network or other form of FDM transport. The architecture involves downstream and upstream FDM multiplexing techniques to allow contemporaneous, parallel communications across a plurality of frequency channels. Furthermore, the architecture allows a central concentrator to support a plurality of remote devices that each have guaranteed bandwidth through connection-oriented allocations of bi-directional data flows. The upstream and downstream bandwidth allocation can support symmetrical bandwidth as well as asymmetrical bandwidth in either direction. The architecture generally can be used to support connection-oriented physical layer connectivity between a remote device and the central concentrator. Furthermore, the architecture may be integrated into other higher level devices such as, but not limited to, bridges, switches, routers, and/or gateways. The architecture generally may peacefully coexist with other services commonly-found in cable distribution networks.
摘要翻译：用于通过频分复用（FDM）信道提供高速接入的架构允许通过有线传输网络或其它形式的FDM传输传输以太网帧和/或其他数据。该架构涉及下游和上游FDM复用技术，以允许跨多个频率信道同时进行并行通信。此外，该架构允许中央集中器支持多个远程设备，每个远程设备通过双向数据流的面向连接的分配来保证带宽。上行和下行带宽分配可以支持任意方向的对称带宽以及非对称带宽。该架构通常可用于支持远程设备和中央集中器之间的面向连接的物理层连接。此外，该架构可以集成到其他较高级别的设备中，例如但不限于网桥，交换机，路由器和/或网关。该架构通常可以和有线分布网络中常见的其他服务和平共存。

8. 发明授权

US07336680B2 Multi-carrier frequency-division multiplexing (FDM) architecture for high speed digital service 有权
标题翻译：用于高速数字业务的多载波频分复用（FDM）架构
公开(公告)号：US07336680B2
公开(公告)日：2008-02-26
申请号：US10244899
申请日：2002-09-17
申请人： Donald C. Sorenson , Jiening Ao , Steven E. Blashewski , John W. Brickell , Florin Farcas , Richard J. Futch , Joseph Graham Mobley , John A. Ritchie, Jr. , Lamar E. West, Jr.
发明人： Donald C. Sorenson , Jiening Ao , Steven E. Blashewski , John W. Brickell , Florin Farcas , Richard J. Futch , Joseph Graham Mobley , John A. Ritchie, Jr. , Lamar E. West, Jr.
IPC分类号： H04J3/16
CPC分类号： H04N21/4382 , H04J4/00 , H04L7/041 , H04L12/2801 , H04L12/403 , H04L27/2657 , H04L29/06027 , H04L65/1016 , H04N7/10 , H04N7/17309 , H04N21/2362 , H04N21/2365 , H04N21/2383 , H04N21/4305 , H04N21/437 , H04N21/6118 , H04N21/6168
摘要： An architecture for providing high-speed access over frequency-division multiplexed (FDM) channels allows transmission of ethernet frames and/or other data across a cable transmission network or other form of FDM transport. The architecture involves downstream and upstream FDM multiplexing techniques to allow contemporaneous, parallel communications across a plurality of frequency channels. Furthermore, the architecture allows a central concentrator to support a plurality of remote devices that each have guaranteed bandwidth through connection-oriented allocations of bi-directional data flows. The upstream and downstream bandwidth allocation can support symmetrical bandwidth as well as asymmetrical bandwidth in either direction. The architecture generally can be used to support connection-oriented physical layer connectivity between a remote device and the central concentrator. Furthermore, the architecture may be integrated into other higher level devices such as, but not limited to, bridges, switches, routers, and/or gateways. The architecture generally may peacefully coexist with other services commonly-found in cable distribution networks.
摘要翻译：用于通过频分复用（FDM）信道提供高速接入的架构允许通过有线传输网络或其它形式的FDM传输传输以太网帧和/或其他数据。该架构涉及下游和上游FDM复用技术，以允许跨多个频率信道同时进行并行通信。此外，该架构允许中央集中器支持多个远程设备，每个远程设备通过双向数据流的面向连接的分配来保证带宽。上行和下行带宽分配可以支持任意方向的对称带宽以及非对称带宽。该架构通常可用于支持远程设备和中央集中器之间的面向连接的物理层连接。此外，该架构可以集成到其他较高级别的设备中，例如但不限于网桥，交换机，路由器和/或网关。该架构通常可以和有线分布网络中常见的其他服务和平共存。

9. 发明申请

US20090196205A1 CLOCK SYNCHRONIZATION IN A BIDIRECTIONAL NETWORK 有权
标题翻译：双向网络中的时钟同步
公开(公告)号：US20090196205A1
公开(公告)日：2009-08-06
申请号：US12422593
申请日：2009-04-13
申请人： Donald C. Sorenson , Jiening Ao , Steven E. Blashewski , John W. Brickell , Florin Farcas , Richard J. Futch , Joseph Graham Mobley , John A. Ritchie, JR. , Lamar E. West, JR.
发明人： Donald C. Sorenson , Jiening Ao , Steven E. Blashewski , John W. Brickell , Florin Farcas , Richard J. Futch , Joseph Graham Mobley , John A. Ritchie, JR. , Lamar E. West, JR.
IPC分类号： H04L5/14 , H04L5/12 , H04J3/06
CPC分类号： H04N21/4382 , H04J4/00 , H04L7/041 , H04L12/2801 , H04L29/06027 , H04L65/1016 , H04N7/10 , H04N7/17309 , H04N21/2362 , H04N21/2365 , H04N21/2383 , H04N21/4305 , H04N21/437 , H04N21/6118 , H04N21/6168
摘要： An architecture for providing high-speed access over frequency-division multiplexed (FDM) channels allows transmission of ethernet frames and/or other data across a cable transmission network or other form of FDM transport. The architecture involves downstream and upstream FDM multiplexing techniques to allow contemporaneous, parallel communications across a plurality of frequency channels. Furthermore, the architecture allows a central concentrator to support a plurality of remote devices that each have guaranteed bandwidth through connection-oriented allocations of bi-directional data flows. The upstream and downstream bandwidth allocation can support symmetrical bandwidth as well as asymmetrical bandwidth in either direction. The architecture generally can be used to support connection-oriented physical layer connectivity between a remote device and the central concentrator. Furthermore, the architecture may be integrated into other higher level devices such as, but not limited to, bridges, switches, routers, and/or gateways. In addition, the architecture may be used as a local network such as the networks commonly called local area networks (LANs). As a local network, the architecture supports guaranteed bandwidth for delivery of data flows to a plurality of host devices. Each host device might have a network interface card (NIC) that conforms to the architecture of the preferred embodiments of the present invention. Moreover, because the architecture may peacefully coexist with other services commonly-found in cable distribution networks, these other services may also be delivered to a host device. Thus, as a non-limiting example a host device may utilize the preferred embodiments of the present invention for local area network (LAN) data communication, and may also utilize cable television video channels in the same communication medium to carry various multimedia information.
摘要翻译：用于通过频分复用（FDM）信道提供高速接入的架构允许通过有线传输网络或其它形式的FDM传输传输以太网帧和/或其他数据。该架构涉及下游和上游FDM复用技术，以允许跨多个频率信道同时进行并行通信。此外，该架构允许中央集中器支持多个远程设备，每个远程设备通过双向数据流的面向连接的分配来保证带宽。上行和下行带宽分配可以支持任意方向的对称带宽以及非对称带宽。该架构通常可用于支持远程设备和中央集中器之间的面向连接的物理层连接。此外，该架构可以集成到其他较高级别的设备中，例如但不限于网桥，交换机，路由器和/或网关。此外，该架构可以用作本地网络，例如通常称为局域网（LAN）的网络。作为本地网络，该架构支持用于向多个主机设备传送数据流的保证带宽。每个主机设备可以具有符合本发明的优选实施例的体系结构的网络接口卡（NIC）。此外，由于架构可能与电缆分发网络中通常发现的其他服务和平共存，所以这些其他服务也可能被传送到主机设备。因此，作为非限制性示例，主机设备可以将本发明的优选实施例用于局域网（LAN）数据通信，并且还可以利用同一通信介质中的有线电视视频信道来承载各种多媒体信息。

10. 发明授权

US07519081B2 Multi-carrier frequency-division multiplexing (FDM) architecture for high speed digital service in local networks 有权
标题翻译：用于本地网络高速数字业务的多载波频分复用（FDM）架构
公开(公告)号：US07519081B2
公开(公告)日：2009-04-14
申请号：US10245179
申请日：2002-09-17
申请人： Donald C. Sorenson , Jiening Ao , Steven E. Blashewski , John W. Brickell , Florin Farcas , Richard J. Futch , Joseph Graham Mobley , John A. Ritchie, Jr. , Lamar E. West, Jr.
发明人： Donald C. Sorenson , Jiening Ao , Steven E. Blashewski , John W. Brickell , Florin Farcas , Richard J. Futch , Joseph Graham Mobley , John A. Ritchie, Jr. , Lamar E. West, Jr.
IPC分类号： H04J3/16
CPC分类号： H04N21/4382 , H04J4/00 , H04L7/041 , H04L12/2801 , H04L29/06027 , H04L65/1016 , H04N7/10 , H04N7/17309 , H04N21/2362 , H04N21/2365 , H04N21/2383 , H04N21/4305 , H04N21/437 , H04N21/6118 , H04N21/6168
摘要： Disclosed herein are methods of providing a client with local area network connectivity and access to other services in a cable network. One such method includes: allocating bandwidth in the network to support bi-directional data communication between the host and a central concentrator. Bandwidth is allocated for a downstream flow on at least one downstream frequency channel based on a mapping between the downstream flow and a particular octet in a downstream packet. Bandwidth is allocated for an upstream flow on at least one non-shared upstream tone. The method also includes conveying a bi-directional data flow between the host and the concentrator over the allocated bandwidth, including conveying the upstream flow using the allocated bandwidth and conveying the downstream flow using the allocated bandwidth. The method also includes utilizing bandwidth in the network not allocated to data communications to provide the host with at least one audio/visual service.
摘要翻译：这里公开的方法是向客户端提供局域网连接和对有线网络中的其他服务的访问。一种这样的方法包括：分配网络中的带宽以支持主机和中央集中器之间的双向数据通信。基于下游流与下游分组中的特定八位字节之间的映射，为至少一个下行频道上的下游流分配带宽。在至少一个非共享上行音调上为上行流分配带宽。该方法还包括通过分配的带宽在主机和集中器之间传送双向数据流，包括使用分配的带宽传送上行流，并使用分配的带宽传送下游流。该方法还包括利用未分配给数据通信的网络中的带宽来向主机提供至少一个音频/视频服务。

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