| 基于DOCSIS的CM和CMTS的设计与实现 |
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| 引用本文： | 赵志彪 冯振明 等. 基于DOCSIS的CM和CMTS的设计与实现[J]. 电讯技术, 2001, 41(4): 42-47 |
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| 作者姓名： | 赵志彪 冯振明 等 |
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| 作者单位： | 清华大学电子工程系,北京,100084 |
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| 摘 要： | HFC（Hybrid Fiber Coax)为多媒体和宽带业务提供了一种宽带接入方式。本文论述了HFC接入网的结构和频谱安排，并结合HFC接入网的双向改造，对媒体接入层（MAC）和物理层（PHY）进行了具体分析，同时给出DOCSIS（Data-Over-Cable Service Interface Specification)规范中MAC协议解决上行信道分配问题的实现方法以及物理层的方案；最后，给出了符合DOCSIS规范的CM（Cable Modem）和CMTS（Cable Modem Terminal System)的软件和硬件实现方案。
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| 关 键 词： | 有线电视网络 双向HFC接入网 通信网 电缆调制解调器 DOCSIS |
| 文章编号： | 1001-893X(2001)04-0042-06 |
| 修稿时间： | 2001-05-16 |
Design and Realization of CM and CMTS Based on DOCSIS |
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| ZHAO Zhi-biao,FENG Zhen-ming,LU Ming-quan. Design and Realization of CM and CMTS Based on DOCSIS[J]. Telecommunication Engineering, 2001, 41(4): 42-47 |
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| Authors: | ZHAO Zhi-biao FENG Zhen-ming LU Ming-quan |
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| Abstract: | HFC (Hybrid Fiber Coax) provides a kind of broadband access way for multimedia and broadband services. The structure and the spectrum allocation scheme of HFC are described. The MAC layer and PHY layer of dual-direction HFC network are analyzed in detail. The upstream channel allocation scheme in MAC and the scenario of PHY in DOCSIS (Data-Over-Cable Service Interface Specification) are presented. Finally, The software and hardware designs of CM (Cable Modem) and CMTS (Cable Modem Terminal System) conforming to DOCSIS are given. |
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| Keywords: | CATV network Dual HFC access network Design |
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