公开(公告)号：US5936940A

公开(公告)日：1999-08-10

申请号：US701624

申请日：1996-08-22

申请人： Gerald Arnold Marin ,  Lap T. Huynh ,  Ken Van Vu ,  Raif O. Onvural ,  Levent Gun ,  Bouchung Lin

发明人： Gerald Arnold Marin ,  Lap T. Huynh ,  Ken Van Vu ,  Raif O. Onvural ,  Levent Gun ,  Bouchung Lin

IPC分类号： H04L12/56 ,  H04L12/26

CPC分类号： H04L12/5602 ,  H04L2012/5619 ,  H04L2012/5636

摘要： An enhanced adaptive rate-based congestion control system for packet transmission networks uses the absolute rather than the relative network queuing delay measure of congestion in the network. Other features of the congestion control system include test transmissions only after a predetermined minimum time, after the receipt of an acknowledgment from the previous test, or transmission of a minimum data burst, whichever takes longest. The congestion control system also provides a small reduction in rate at low rates and a large reduction in rates at high rates. A logarithmic rate control function provides this capability. Rate damping is provided by changing all of the values in a rate look-up tables in response to excessive rate variations. Finally, the fair share of the available bandwidth is used as the starting point for rates at start-up or when a predefined rate damping region is exited.

摘要翻译： 用于分组传输网络的增强的基于自适应速率的拥塞控制系统使用网络中的拥塞的绝对而不是相对网络排队延迟测量。 拥塞控制系统的其他特征仅在预定的最小时间之后，在从先前的测试接收到确认之后，或传输最小数据脉冲串（以较长者为准）为止包括测试传输。 拥挤控制系统还以低速率提供了较小的速率降低，并且高速率的速率大幅度降低。 对数速率控制功能提供此功能。 速率阻尼通过响应于过大的速率变化改变速率查找表中的所有值来提供。 最后，将可用带宽的公平份额用作启动速率或退出预定义速率阻尼区域的起始点。

公开(公告)号：USRE44211E1

公开(公告)日：2013-05-07

申请号：US10965711

申请日：2004-10-14

申请人： Bouchung Lin ,  Francis R. Koperda

发明人： Bouchung Lin ,  Francis R. Koperda

IPC分类号： H04N7/173 ,  H04N7/10 ,  H04N5/445

CPC分类号： H04N21/6583 ,  H04J3/1694 ,  H04J3/247 ,  H04L2012/561 ,  H04L2012/5616 ,  H04L2012/563 ,  H04L2012/5632 ,  H04L2012/5675 ,  H04L2012/5679 ,  H04N7/17309 ,  H04N7/17318 ,  H04N21/2385 ,  H04N21/2393 ,  H04N21/2402 ,  H04Q11/0478

摘要： In a two way cable system that includes a controller and a plurality of user terminals, a method of granting rights for upstream data transmission from the user terminals includes processing contention requests to generate contention grants and maintaining a list of connections, each connection having specified therefor a predetermined bit rate. The controller sends a downstream data stream to the user terminals and receives an upstream data stream from the user terminals. The downstream data stream includes a plurality of grant fields, and the upstream data stream includes upstream data slots and upstream control slots. The method further includes scheduling preemptive grants for upstream data slots using selected fields of the plurality of grant fields so as to provide preemptive grants for upstream data transport at a bit rate specified for each connection, sending to the user terminals a data transmission grant in a grant field of the plurality of grant fields for which a preemptive grant is scheduled, and sending to the user terminals a data transmission grant in a grant field of the plurality of grant fields in which a contention grant is pending and no preemptive grant is scheduled.

公开(公告)号：US06467091B1

公开(公告)日：2002-10-15

申请号：US09294756

申请日：1999-04-19

申请人： Bouchung Lin ,  Francis R. Koperda

发明人： Bouchung Lin ,  Francis R. Koperda

IPC分类号： H04N7173

CPC分类号： H04N21/6583 ,  H04J3/1694 ,  H04J3/247 ,  H04L2012/561 ,  H04L2012/5616 ,  H04L2012/563 ,  H04L2012/5632 ,  H04L2012/5675 ,  H04L2012/5679 ,  H04N7/17309 ,  H04N7/17318 ,  H04N21/2385 ,  H04N21/2393 ,  H04N21/2402 ,  H04Q11/0478

摘要： In a two way cable system that includes a controller and a plurality of user terminals, a method of granting rights for upstream data transmission from the user terminals includes processing contention requests to generate contention grants and maintaining a list of connections, each connection having specified therefor a predetermined bit rate. The controller sends a downstream data stream to the user terminals and receives an upstream data stream from the user terminals. The downstream data stream includes a plurality of grant fields, and the upstream data stream includes upstream data slots and upstream control slots. The method further includes scheduling preemptive grants for upstream data slots using selected fields of the plurality of grant fields so as to provide preemptive grants for upstream data transport at a bit rate specified for each connection, sending to the user terminals a data transmission grant in a grant field of the plurality of grant fields for which a preemptive grant is scheduled, and sending to the user terminals a data transmission grant in a grant field of the plurality of grant fields in which a contention grant is pending and no preemptive grant is scheduled.

摘要翻译： 在包括控制器和多个用户终端的双向电缆系统中，从用户终端授权上游数据传输的权利的方法包括处理争用请求以产生竞争许可并维护连接列表，每个连接已经指定 预定比特率。 控制器向用户终端发送下​​游数据流，并从用户终端接收上行数据流。 下游数据流包括多个授权字段，并且上行数据流包括上游数据时隙和上游控制时隙。 该方法还包括使用多个授权字段中的所选字段来调度针对上游数据时隙的抢先授权，以便以为每个连接指定的比特率为上行数据传输提供抢占许可，向用户终端发送数据传输许可 授予多个授权字段的授权字段，并且向用户终端发送在竞争授权待处理的多个授权字段的授权字段中的数据传输许可，并且没有预先优先授权。

公开(公告)号：US5966163A

公开(公告)日：1999-10-12

申请号：US732668

申请日：1996-10-16

申请人： Bouchung Lin ,  Francis R. Koperda

发明人： Bouchung Lin ,  Francis R. Koperda

IPC分类号： H04J3/16 ,  H04J3/24 ,  H04L12/70 ,  H04N7/173 ,  H04N21/2385 ,  H04N21/239 ,  H04N21/24 ,  H04N21/6583 ,  H04Q11/04 ,  H04J15/00

CPC分类号： H04N21/6583 ,  H04J3/1694 ,  H04J3/247 ,  H04N21/2385 ,  H04N21/2393 ,  H04N21/2402 ,  H04N7/17309 ,  H04N7/17318 ,  H04Q11/0478 ,  H04L2012/561 ,  H04L2012/5616 ,  H04L2012/563 ,  H04L2012/5632 ,  H04L2012/5675 ,  H04L2012/5679

摘要： In a two way cable system that includes a controller and a plurality of user terminals, a method of granting rights for upstream data transmission from the user terminals includes processing contention requests to generate contention grants and maintaining a list of connections, each connection having specified therefor a predetermined bit rate. The controller sends a downstream data stream to the user terminals and receives an upstream data stream from the user terminals. The downstream data stream includes a plurality of grant fields, and the upstream data stream includes upstream data slots and upstream control slots. The method further includes scheduling preemptive grants for upstream data slots using selected fields of the plurality of grant fields so as to provide preemptive grants for upstream data transport at a bit rate specified for each connection, sending to the user terminals a data transmission grant in a grant field of the plurality of grant fields for which a preemptive grant is scheduled, and sending to the user terminals a data transmission grant in a grant field of the plurality of grant fields in which a contention grant is pending and no preemptive grant is scheduled.

摘要翻译： 在包括控制器和多个用户终端的双向电缆系统中，从用户终端授权上游数据传输的权利的方法包括处理争用请求以产生竞争许可并维护连接列表，每个连接已经指定 预定比特率。 控制器向用户终端发送下​​游数据流，并从用户终端接收上行数据流。 下游数据流包括多个授权字段，并且上行数据流包括上游数据时隙和上游控制时隙。 该方法还包括使用多个授权字段中的所选字段来调度针对上游数据时隙的抢先授权，以便以为每个连接指定的比特率为上行数据传输提供抢占许可，向用户终端发送数据传输许可 授予多个授权字段的授权字段，并且向用户终端发送在竞争授权待处理的多个授权字段的授权字段中的数据传输许可，并且没有预先优先授权。