Cellular mobile telephone system

Details Cellular mobile telephone system Cellular mobile telephone system

H - Electricity

04

Q

H04Q 7/22 (2006.01) H04B 7/005 (2006.01) H04L 1/06 (2006.01) H04L 27/233 (2006.01) H04Q 7/38 (2006.01) H04L 27/00 (2006.01)

Patent

CA 2227162

In order to reproduce a highly precise carrier for a coherent detection in a cellular mobile CDMA system, a first stage carrier estimation is performed by using pilot symbols inserted into a receiving signal having a known code pattern. A data symbol train of the receiving signal is preparatively detected by using the estimated carrier and a second stage carrier estimation is performed for the receiving signal by using the detected data symbol train and the pilot symbols.

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