公开(公告)号：EP1266526A2

公开(公告)日：2002-12-18

申请号：EP01910716.8

申请日：2001-02-15

申请人： Broadcom Corporation

发明人： SALA, Dolors ,  GUMMALLA, Ajay Chandra V. ,  LIMB, John O. ,  PROTUS, Richard J.

IPC分类号： H04N7/24

CPC分类号： H04N7/17309 ,  H04L12/2801 ,  H04L12/2856 ,  H04L12/2861 ,  H04L12/2872 ,  H04L12/6418 ,  H04L29/06 ,  H04L29/06027 ,  H04L41/0896 ,  H04L41/5087 ,  H04L47/10 ,  H04L47/14 ,  H04L47/15 ,  H04L47/2416 ,  H04L47/2433 ,  H04L47/35 ,  H04L47/50 ,  H04L47/6215 ,  H04L47/623 ,  H04L47/70 ,  H04L47/788 ,  H04L47/801 ,  H04L47/805 ,  H04L65/607 ,  H04L65/80 ,  H04L67/104 ,  H04L69/08 ,  H04L69/22 ,  H04L2012/6481 ,  H04L2012/6494 ,  H04M7/006 ,  H04N21/2385 ,  H04N21/42676 ,  H04N21/437 ,  H04N21/4396 ,  H04N21/44209 ,  H04N21/4788 ,  H04N21/6118 ,  H04N21/6168 ,  H04N21/6377 ,  H04N21/64707

摘要： A system and method is provided for scheduling transmissions from a plurality of services operating over a widely distributed communications network. A headend communications device (such as a cable modem termination system) arbitrates bandwidth among a plurality of cable modems configurable for bi-directional communications. The headend grants a bandwidth region to a specified cable modem or assigns contention regions for a group of cable modems. Each cable modem contains a local scheduler that sends requests for bandwidth according to local policies or rules. Upon receipt of a grant from the headend, the local scheduler selects packets to be transmitted to best serve the needs of the services associated with the cable modem. Accordingly, a service requesting bandwidth may not be the service utilizing the grant corresponding to bandwidth request. Nonetheless, the local scheduler manages bandwidth allocation among its local services such that all requesting services eventually receive bandwidth.

公开(公告)号：EP1266526B1

公开(公告)日：2012-04-25

申请号：EP01910716.8

申请日：2001-02-15

申请人： Broadcom Corporation

发明人： SALA, Dolors ,  GUMMALLA, Ajay Chandra V. ,  LIMB, John O. ,  PROTUS, Richard J.

IPC分类号： H04N7/24 ,  H04N7/173 ,  H04L12/56

CPC分类号： H04N7/17309 ,  H04L12/2801 ,  H04L12/2856 ,  H04L12/2861 ,  H04L12/2872 ,  H04L12/6418 ,  H04L29/06 ,  H04L29/06027 ,  H04L41/0896 ,  H04L41/5087 ,  H04L47/10 ,  H04L47/14 ,  H04L47/15 ,  H04L47/2416 ,  H04L47/2433 ,  H04L47/35 ,  H04L47/50 ,  H04L47/6215 ,  H04L47/623 ,  H04L47/70 ,  H04L47/788 ,  H04L47/801 ,  H04L47/805 ,  H04L65/607 ,  H04L65/80 ,  H04L67/104 ,  H04L69/08 ,  H04L69/22 ,  H04L2012/6481 ,  H04L2012/6494 ,  H04M7/006 ,  H04N21/2385 ,  H04N21/42676 ,  H04N21/437 ,  H04N21/4396 ,  H04N21/44209 ,  H04N21/4788 ,  H04N21/6118 ,  H04N21/6168 ,  H04N21/6377 ,  H04N21/64707

摘要： A system and method is provided for scheduling transmissions from a plurality of services operating over a widely distributed communications network. A headend communications device (such as a cable modem termination system) arbitrates bandwidth among a plurality of cable modems configurable for bi-directional communications. The headend grants a bandwidth region to a specified cable modem or assigns contention regions for a group of cable modems. Each cable modem contains a local scheduler that sends requests for bandwidth according to local policies or rules. Upon receipt of a grant from the headend, the local scheduler selects packets to be transmitted to best serve the needs of the services associated with the cable modem. Accordingly, a service requesting bandwidth may not be the service utilizing the grant corresponding to bandwidth request. Nonetheless, the local scheduler manages bandwidth allocation among its local services such that all requesting services eventually receive bandwidth.

摘要翻译： 提供了一种电缆调制解调器系统和方法，用于根据专门的数据传输协议传输和处理数据，同时利用传统的电缆调制解调器终端系统（CMTS）设备。 根据本发明的电缆调制解调器系统包括电缆调制解调器，其根据专有协议提供对数据分组的修改以及修改的数据分组的寻址到头端服务器。 头端服务器适于重构数据分组以便传输到其他本地电缆调制解调器或分组交换网络。 在另外的实施例中，CMTS本身而不是头端服务器操作以重建数据分组。