Original document(35 pages) Authorized document(35 pages) 中文版
    Demodulator architectures for processing a received signal in a wireless communications system. The demodulator includes a number of correlators coupled to a combiner. Each correlator typically receives and despreads input samples (which are generated from the received signal) with a respective despreading sequence to provide despread samples. Each correlator then decovers the despread samples to provide decovered ''half-symbols'' and further demodulates the decovered half-symbols with pilot estimates to generate correlated symbols. The decovering is performed with a Walsh symbol having a length (T) that is half the lenght (2T) of a Walsh symbol used to cover the data symbols in the transmitted signal. The combiner selectively combines correlated symbols from the assigned correlators to provide demodualted symbols. One or more correlators can be assigned to process one or more instances of each transmiteed signal. The pilot estimates used within each assigned correlator to demodulate the decovered half-symbols are generated based on the signal instance being prcessed by that correlator.
Application Number
申请号		 01811039 Application Date
申请日		 2001.06.14
Title 名称 Method and apparatus for demodulating signals processed in transmit deversity mode
Publication Number
公开号		 1436407 Publication Date
公开日		 2003.08.13
Approval Pub. Date 2006.01.04 Granted Pub. Date 2006.01.04
International Classification 分类号 H04B1/707;H04B7/06
Applicant(s) Name
申请人		 Qualcomm Inc.
Address 地址
Inventor(s) Name 发明人 D.N. Rowitch;Lee Way-Shing;T. Ekvetchavit
Attorney & Agent 代理人 zhang zhengquan
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