发明名称 |
RADIO CHANNEL ANALYZER TO DETERMINE DOPPLER SHIFTS ACROSS MULTIPLE FREQUENCIES OF A WIDEBAND SIGNAL |
摘要 |
<p>A receiver and receive processing method described herein improves the accuracy of channel estimates by correcting for the assumption that the Doppler shift (or rate-of-change-of-delay) stays constant for each frequency within a signal bandwidth of a received signal. To that end, a receiver according to the present invention comprises a channel processor having multiple processing units. A first processing unit processes reference values (e.g., pilot signals) received for each of a plurality of frequencies within a signal bandwidth at a plurality of different signal times (or the complex propagation channel coefficients estimated therefrom) to determine a set of complex wave amplitudes either for each of multiple frequencies in the signal bandwidth or for each of the different signal times. A second processing unit subsequently processes the complex wave amplitudes to determine complex scattering coefficients, where each complex scattering coefficient corresponds to a respective scattering object in the wireless communication channel.</p> |
申请公布号 |
EP2520054(B1) |
申请公布日期 |
2014.06.04 |
申请号 |
EP20100810937 |
申请日期 |
2010.12.15 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
DENT, PAUL, W.;KRASNY, LEONID |
分类号 |
H04L25/02 |
主分类号 |
H04L25/02 |
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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