中國移動多媒體廣播簡介

Introduction to China Mobile Multimedia Broadcasting

侯信安(Hsin-An Hou)

《電腦與通訊》 130期 (2009/12) Pp. 117-122

https://doi.org/10.29917/CCLTJ.200912.0016

摘要

大陸廣電總局從2006年開始陸續發布中國移動多媒體廣播(China Mobile Multimedia Broadcasting；CMMB)一系列相關標準，內容涵蓋頭端系統服務，廣播信號架構，與終端產品性能要求。藉由2008奧林匹克運動會與大陸手機產業本身優勢，CMMB服務廣泛的應用。本文首先簡介CMMB廣播信道幀結構、信道編碼和調製與復用，接著比較CMMB與其他現行移動多媒體技術，最後敘述CMMB發展的機會與隱憂。

關鍵字

中國移動多媒體廣播 ； 正交分頻多工 ； 低密度奇偶校驗碼

並列摘要

The State Administration of Radio Film and Television (SARFT) has published a series of standards for China Mobile Multimedia Broadcasting since 2006. The series include head-end service, frame structure for broadcasting signaling, and the requirements for terminal devices. The CMMB service is adopted nationwide by 2008 Olympic Games and the advantages of China mobile phone industries. This paper first introduces the standards of CMMB, including frame structure, channel coding and modulation, and multiplexing. Then, a comparison between CMMB and other mobile multimedia technologies is presented. Finally, it addresses opportunities and potential risks related to the development of CMMB.

並列關鍵字

China Mobile Multimedia Broadcasting ； CMMB ； Orthogonal Frequency Division Multiplexing ； OFDM ； Low Density Parity Check ； LDPC Code