发明名称 |
CATV NETWORK SYSTEM AND METHOD FOR PROVIDING IPTV SERVICE |
摘要 |
A CATV(Cable Television) network system having an IPTV(Internet Protocol TV) service providing function and a method thereof are provided to supply the IPTV service without channel change delay in consideration of a DOCSIS protocol as an MAC protocol of a CATV network, thereby supporting smooth channel change of a user and efficiently using an uplink band. A cable modem termination system(61) receives all channel data from a broadcasting server, and integrates a bandwidth of a broadcasting service with a bandwidth of a communication service. The cable modem termination system provides channel data, requested from a cable modem(62), without channel change delay based on a hierarchy structure of a DOCSIS(Data Over Cable Service Interface Specifications) protocol extension stack as an MAC(Media Access Control) protocol of a CATV network. The plural cable modems request the specific channel data to the cable modem termination system, and receives the channel data.
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申请公布号 |
KR20080048696(A) |
申请公布日期 |
2008.06.03 |
申请号 |
KR20060118983 |
申请日期 |
2006.11.29 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE;POSTECH ACADEMY-INDUSTRY FOUNDATION |
发明人 |
KWON, EUN JUNG;KWON, OH YUNG;LEE, SOO IN;SONG, HWANG JUN;LEE, DAI BOONG;JOO, HYUN CHUL |
分类号 |
H04N7/10;H04L12/20;H04L12/28;H04L29/06 |
主分类号 |
H04N7/10 |
代理机构 |
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