发明名称 |
METHOD AND ADAPTIVE BIT INTERLEAVER FOR WIDEBAND SYSTEMS USING ADAPTIVE BIT LOADING |
摘要 |
<p>An adaptive interleaver for wideband orthogonal frequency division multiplexed (OFDM) communications permutes a variable number of coded bits per OFDM symbol (Ncbps). The variable number of coded bits is calculated based on individual subcarrier modulation assignments for orthogonal subcarriers of a wideband channel. The interleaver matrix size may be based on the variable number of coded bits per OFDM symbol and the number of subchannels that comprise the wideband channel. The interleaver may add padding bits to the interleaver matrix to fill any remaining positions, and after performing an interleaving operation, the interleaver may prune the padding bits to provide a sequence of interleaved bits for subsequent modulation on the orthogonal subcarriers. A receiver may include an adaptive deinterleaver to reverse the process.</p> |
申请公布号 |
WO2005064876(A1) |
申请公布日期 |
2005.07.14 |
申请号 |
WO2004US40142 |
申请日期 |
2004.12.01 |
申请人 |
INTEL CORPORATION;MALTSEV, ALEXANDER;SADRI, ALI;DAVYDOV, ALEXEI |
发明人 |
MALTSEV, ALEXANDER;SADRI, ALI;DAVYDOV, ALEXEI |
分类号 |
H04L1/00;H04L27/26;(IPC1-7):H04L27/26 |
主分类号 |
H04L1/00 |
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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