Upstream communication is the key in the construction of HFC access network.

HFC上行通信是构建宽带HFC接入网的关键。

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This thesis introduced the implementation of the digital TV network application of a HFC based uplink access system, which provides the uplink channel for inter-active operation.

本文研究的基于HFC的上行接入系统应用于数字电视网络中，为交互式操作提供上行通道。

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This article introduces the structure and frequency division of the HFC network, and gives a detailed analysis of the broadband access technology over the HFC.

文中介绍了HFC网络的结构和频谱分配，同时对HFC网络中的接入协议作了深入分析。

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