公开(公告)号：US09094247B2

公开(公告)日：2015-07-28

申请号：US14095348

申请日：2013-12-03

Applicant: Broadcom Corporation

Inventor： Tooraj Esmailian ,  John Lock Creigh

IPC: H03K5/159 ,  H04L25/03

CPC classification number: H04L25/03343 ,  H04L25/03057 ,  H04L2025/03808

Abstract: The present disclosure is directed to a system and method for continually adapting a channel equalizer that includes a precoder based on changing channel conditions. The precoder is described as being implemented in the exemplary context of a 10GBASE-T physical layer (PHY) device. 10GBASE-T is defined by the Institute of Electrical and Electronics Engineers (IEEE) 802.3an standard and uses four pairs of copper transmission lines to provide an aggregate data rate of 10 gigabits per second. In this exemplary context, the system and method of the present disclosure are configured to exploit an undefined, auxiliary bit in the 10GBASE-T transmission frame to continually send updates to the coefficients of the precoder based on changing channel conditions. The updates can be sent in the transmission frames together with application-level data.

Abstract translation: 本公开涉及一种用于基于改变的信道条件来连续地适配包括预编码器的信道均衡器的系统和方法。 该预编码器被描述为在10GBASE-T物理层（PHY）设备的示例性上下文中实现。 10GBASE-T由电气和电子工程师协会（IEEE）802.3an标准定义，并使用四对铜线传输线来提供每秒10吉比特的总数据速率。 在该示例性上下文中，本公开的系统和方法被配置为利用10GBASE-T传输帧中的未定义的辅助位，以基于改变的信道条件不断地向预编码器的系数发送更新。 更新可以与应用级数据一起在传输帧中发送。