| 摘要 |
A programmable, flexible, vector correlation engine for CDMA mobile and base station chip rate signal processing. A correlator co-processor (CCP) performs the de-spreading tasks for a RAKE receiver, early/late correlations for time tracking, and has provision for coherent accumulation of different lengths. The CCP also performs energy estimation and non-coherent accumulation functions. The CCP can also perform correlation functions required for delay profile estimation, and for search/acquisition functions. The same centralized Data Path is used to perform all these functions; a common controller generates signals into the Data Path in response to tasks initiated by a host processor (e.g., DSP). The tasks written into the CCP are performed effectively in parallel by the CCP Data Path.
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