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Cell selection in high-speed downlink packet access communication systems

Image Number 5 for United States Patent #7680082.

The usual determination of signal-to-noise ratio E.sub.C/I.sub.0 in a communication system is modified such that E.sub.C/I.sub.0 is also based on either or both of the path delay profile (PDP) and estimates of the load on a cell in the communication system. The PDP may be obtained from a path searcher in a receiver that is already needed for estimating the received signal code power of a channel such as a common pilot channel. Because PDP information is already available, it can easily be incorporated into the E.sub.C/I.sub.0 measurements.

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