Patent ID: 6985106
Filing Date: 2006-01-10
Classification: H04B

Abstract:
1. An array antenna radio communication apparatus comprising: a searcher unit operable to receive signals from at least a portion of an array antenna having a plurality of antenna elements and operable to detect a path-timing of the received signals, the searcher unit comprising a correlation unit operable to obtain first correlation values as correlation values of the received signals, an antenna-to-antenna correlation unit operable to obtain second correlation values as correlation values of the first correlation values, and a path-timing detecting unit operable to detect path-timing based on amplitude information obtained from the second correlation values; wherein the receiving antenna comprises a noise cancellation circuit configuration, capable of neglecting phase rotation of the received signal; and a signal processing unit operable to execute despreading of signals received from the antenna elements based on the path-timing obtained from the searcher unit.