发明名称 |
CHANNEL MAPPING FOR OFDM |
摘要 |
<p>The present invention provides a technique for supporting variable bitrate services in an OFDM environment while minimizing the impact of the variations of fading channels and interference. In general, a basic access channel (BACH) is defined by a set number of sub-carriers over multiple OFDM symbols. While the number of sub-carriers remains fixed for the BACH, the sub-carriers for any given BACH will hop from one symbol to another. Thus, the BACH is defined by a hopping pattern for a select number of sub-carriers over a sequence of symbols.</p> |
申请公布号 |
WO2004032443(A1) |
申请公布日期 |
2004.04.15 |
申请号 |
WO2003IB04272 |
申请日期 |
2003.09.29 |
申请人 |
NORTEL NETWORKS LIMITED |
发明人 |
MA, JIANGLEI;TONG, WEN;JIA, MING;ZHU, PEIYING;YU, DONG-SHENG |
分类号 |
H04L1/06;H04L5/02;H04L27/26;(IPC1-7):H04L27/26;H04B1/713;H04B7/08 |
主分类号 |
H04L1/06 |
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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