A technique for time alignment of uplink cdma signals

Details A technique for time alignment of uplink cdma signals A technique for time alignment of uplink cdma signals

H - Electricity

04

B

H04B 7/216 (2006.01) H04B 1/707 (2006.01) H04B 7/26 (2006.01) H04J 13/00 (2006.01) H04Q 7/34 (2006.01)

Patent

CA 2270607

The present invention relates to communication systems and in particular relates to the time alignment of uplink CDMA signals. A simple approach for improving the performance of received CDMA signals is discussed. This consists of aligning the timings of users' signals such that the maximum output power from a single rake finger for each user occurs simultaneously. This allows the timing to be adjusted for each user's signal independently of the others and has the effect of minimising any interference between users. The invention provides a time alignment mechanism which employs a minimum of signalling.

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