发明名称 |
METHOD AND SYSTEM FOR EFFECTIVE ADAPTIVE CODING AND MODULATION IN SATELLITE COMMUNICATION SYSTEM |
摘要 |
A Second Generation Digital Video Broadcasting via Satellite (DVB-S2) system is provided. More particularly, a method and apparatus for maintaining synchronization of a signal by changing an Adaptive Coding and Modulation (ACM) method that is used for a conventional DVB-S2 system are provided. In the apparatus and method, an FEC frame of a variable length is formed by turbo encoding rather than Bose-Chaudhuri-Hocquenghem (BCH) and Low Density Parity Check (LDPC) encoding, and a Physical Layer (PL) frame of a specific length is formed regardless of a modulation method, so that a satellite terminal receives a signal transmitted at a specific length regardless of a modulation method or a coding rate to easily maintain synchronization without interruption and efficiently transmit the signal.
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申请公布号 |
US2010046415(A1) |
申请公布日期 |
2010.02.25 |
申请号 |
US20070516258 |
申请日期 |
2007.11.29 |
申请人 |
KIM TAE HOON;KIM PAN SOO;SHIN MIN SU;CHANG DAE IG |
发明人 |
KIM TAE HOON;KIM PAN SOO;SHIN MIN SU;CHANG DAE IG |
分类号 |
H04J3/22;G06F11/10;H03M13/05;H04B7/14 |
主分类号 |
H04J3/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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