发明名称 Method and apparatus for estimating impairment covariance matrices using unoccupied spreading codes
摘要 In one of its aspects, the technology concerns a method of processing a signal which includes physical data channels which have been channelized using spreading codes. The method comprises (1) despreading unoccupied spreading codes (e.g., codes which are essentially unobscured by traffic data) included in the signal to obtain unoccupied code despread values, (2) using the unoccupied code despread values to form an impairment covariance matrix; and (3) using the impairment covariance matrix along with a channel estimate to form a processing parameter. The processing parameter can be one of combining sets and a signal quality estimate. In another of its aspects, the technology concerns a coherent, linear equalizer apparatus configured to process a signal which includes physical data channels which have been channelized using spreading codes. The equalizer apparatus comprises plural delay fingers (32) configured to despread unoccupied spreading codes included in the signal to obtain unoccupied code despread values, and a generator (60) configured to use the unoccupied code despread values to form an impairment covariance matrix.
申请公布号 US8098715(B2) 申请公布日期 2012.01.17
申请号 US20080135268 申请日期 2008.06.09
申请人 FULGHUM TRACY;BOTTOMLEY GREGORY E.;WANG YI-PIN ERIC;TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) 发明人 FULGHUM TRACY;BOTTOMLEY GREGORY E.;WANG YI-PIN ERIC
分类号 H04B1/00 主分类号 H04B1/00
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