Mobile speed estimation for digital cellular radio systems

Details Mobile speed estimation for digital cellular radio systems Mobile speed estimation for digital cellular radio systems

G - Physics

01

S

G01S 11/06 (2006.01) G01S 11/10 (2006.01) H04Q 7/34 (2006.01) H04Q 7/36 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2289957

For a hierarchical mobile cellular communications system comprising a plurality of microcells and overlaid macrocells, a method is disclosed for estimating the speed of a mobile. The speed estimate assists in the assignment of slow-moving mobiles to microcells and fast-moving mobiles to macrocells, thus keeping the cellular system in optimum utilization. The method first calculates a power signal of the received signals. The power signal is then filtered and decimated. The speed of a mobile is estimated from a determination of the offset autocorrelation of the filtered and decimated power signal.

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