公开(公告)号：US20160218851A1

公开(公告)日：2016-07-28

申请号：US14253363

申请日：2014-04-15

Applicant: Broadcom Corporation

Inventor： Richard PRODAN ,  Niki Pantelias ,  Thomas Kolze

IPC: H04L5/14 ,  H04L12/28

CPC classification number: H04L5/1446 ,  H04L12/2801

Abstract: Embodiments provide solutions to reduce power utilization (either at individual cable modems or in the overall network) in future cable modem networks. Particularly, embodiments seek to reduce power utilization at individual cable modems and in the overall network, by allocating upstream frequency bands and/or transmission modulation schemes among cable modems while accounting for cable loss experienced by individual upstream cable modem transmissions. According to embodiments, frequency spectrum and modulation scheme allocation techniques are provided to optimize power utilization and enable lower upstream transmission power by cable modems while maintaining similar signal strength of received signals or lower signal strength with reduced SNR requirements using lower capacity modulation at the headend.

Abstract translation: 实施例提供了在将来的有线调制解调器网络中降低功率利用（在单个电缆调制解调器或整个网络中）的解决方案。 具体地，实施例通过在电缆调制解调器中分配上行频带和/或传输调制方案，同时考虑各个上行电缆调制解调器传输所经历的电缆损耗，寻求降低各个电缆调制解调器和整个网络的功率利用率。 根据实施例，提供频谱和调制方案分配技术以优化功率利用并且通过电缆调制解调器实现较低的上行传输功率，同时在前端使用较低容量的调制来维持接收信号的相似信号强度或具有降低的SNR要求的较低信号强度。