公开(公告)号：US10075282B2

公开(公告)日：2018-09-11

申请号：US15049296

申请日：2016-02-22

Applicant: STMicroelectronics, Inc.

Inventor： Charaf Hanna ,  Benjamin Nelson Darby ,  Zhifang J Ni ,  John Wrobbel

IPC: H04L7/00

CPC classification number: H04L7/0008 ,  H04L12/40052

Abstract: Upstream burst transmit times are dynamically communicated to the transmit unit in grants issued over time and in any order. A critical parameter is when to trigger the operation to order the buffered data stream for transmission. If the ordering operation is triggered too soon, a later grant of an earlier burst transmit time may not be accounted for and the subsequent transmission could violate the transmission order rule. If the ordering operation is triggered too late, the decision to transmit a burst at an earlier burst transmit time may violate the margin rule. To address these concerns, a fetch offset time in advance of each granted burst transmit time is assigned. As each fetch offset time is sequentially reached, a next partial data portion of the buffered data stream is prepared for burst communication.

公开(公告)号：US20170244539A1

公开(公告)日：2017-08-24

申请号：US15049296

申请日：2016-02-22

Applicant: STMicroelectronics, Inc.

Inventor： Charaf Hanna ,  Benjamin Nelson Darby ,  Zhifang J. Ni ,  John Wrobbel

IPC: H04L7/00

CPC classification number: H04L12/40052

Abstract: Upstream burst transmit times are dynamically communicated to the transmit unit in grants issued over time and in any order. A critical parameter is when to trigger the operation to order the buffered data stream for transmission. If the ordering operation is triggered too soon, a later grant of an earlier burst transmit time may not be accounted for and the subsequent transmission could violate the transmission order rule. If the ordering operation is triggered too late, the decision to transmit a burst at an earlier burst transmit time may violate the margin rule. To address these concerns, a fetch offset time in advance of each granted burst transmit time is assigned. As each fetch offset time is sequentially reached, a next partial data portion of the buffered data stream is prepared for burst communication.

公开(公告)号：US09325631B2

公开(公告)日：2016-04-26

申请号：US14025584

申请日：2013-09-12

Applicant: STMicroelectronics, Inc. ,  Cisco Technology, Inc.

Inventor： Charaf Hanna ,  Zhifang J. Ni ,  John Wrobbel ,  Benjamin Nelson Darby ,  Andrew Graham Whitlow ,  Gale L. Shallow ,  Maynard Darvel Hammond

IPC: H04L12/54 ,  H04L12/863 ,  H04L12/861 ,  H04N21/426 ,  H04N21/61 ,  H04L12/911

CPC classification number: H04L47/6215 ,  H04L47/74 ,  H04L49/9057 ,  H04N21/42676 ,  H04N21/61 ,  H04N21/6168

Abstract: A system and method for improved upstream data transmission. In an embodiment, a cable modem includes a transceiver configured for transmitting data upstream once permission is granted. In between times when permission to transmit is granted, however, the cable modem is configured to prepare as much data as possible for immediate upstream transmission once that very permission is granted. Thus, prior to permission being granted, the cable modem assembles (pre-processes) the data into transmit frames such that the data frames may be stored in a local memory coupled to the transceiver in a “ready-to-go” format. In this manner, the entire amount of time/bandwidth allocated to the cable modem in response to its request for upstream data transmission may be dedicated to actually transmitting data upstream as opposed to consuming time and bandwidth processing the data into data frames after upstream data transmission has been granted.

Abstract translation: 一种用于改进上游数据传输的系统和方法。 在一个实施例中，电缆调制解调器包括被配置用于在许可被授权之后向上游传输数据的收发器。 然而，在允许发送的时间之间，电缆调制解调器被配置为准备尽可能多的数据，一旦获得了许可，就立即上传传输。 因此，在许可被许可之前，电缆调制解调器将数据组装（预处理）到发送帧中，使得数据帧可以以“即用”格式存储在耦合到收发器的本地存储器中。 以这种方式，响应于其对上游数据传输的请求而分配给电缆调制解调器的时间/带宽的总量可以专用于实际发送数据上行，而不是在上行数据传输之后消耗时间和带宽处理数据到数据帧 已被授予。