发明名称 |
Joint maximum likelihood sequence estimator with dynamic channel description |
摘要 |
A cellular communication signal receiver receives a desired signal in the presence of at least one co-channel interference signal. The receiver comprises a channel estimator configured to receive a plurality of training signal samples to estimate the finite impulse response to the desired signal and the co-channel interference signal. The finite impulse response estimates having a predetermined number of channel taps defining the length of the desired channel and the length of co-channel interference channel. A Viterbi decoder is coupled to the channel estimator, and configured to receive the desired and co-channel interference signals. The channel estimator generates channel tap estimates. A power calculator is coupled to the channel estimator and configured to estimate the power of the estimated channel taps. A joint channel trimmer is coupled to the power calculator and configured to maintain a joint channel length, such that the desired signal channel length plus the co-channel interference channel length have a fixed size that defines the number of states the Viterbi decoder allocates to the desired signal and the co-channel interference signal.
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申请公布号 |
US6144710(A) |
申请公布日期 |
2000.11.07 |
申请号 |
US19980065193 |
申请日期 |
1998.04.23 |
申请人 |
LUCENT TECHNOLOGIES, INC. |
发明人 |
CHEN, JIUNN-TSAIR;CHEN, YOUNG-KAI;TSAI, HUAN-SHANG |
分类号 |
H04B7/26;H03M13/23;H04B7/005;H04L25/02;(IPC1-7):H03D1/04;H03D1/06;H03K5/01;H03K6/04;H04B1/10 |
主分类号 |
H04B7/26 |
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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