Patent ID: 6253084
Filing Date: 2001-06-26
Classification: G01S,H04W

Abstract:
Process for managing an intercellular transfer of communications from a mobile station in a cellular radio communication system including a specific number of microcells inside umbrella cells, wherein each of said microcells and each of said umbrella cells includes a base station for allowing a routing of said communications, comprising the steps of:counting a number of handovers H.sub.o of said mobile station between said microcells during a specified observation interval T.sub.o when said mobile station is under control of the base station of a microcell;calculating a rate of transfer H.sub.o /T.sub.o for performing said intercellular transfer of communications to an umbrella station when said rate of transfer is greater than a specified threshold value when said mobile station is under a control of said base station of said microcell;maintaining said intercellular transfer of communications to said base station of said microcell when said rate of transfer is below said specified threshold value when said mobile station is under control of said base station of said microcell; andperforming direction finding to measure a virtual speed of movement of said mobile station in relation to said base station of said umbrella cell in such a way as to perform said intercellular transfer of communications to said base station of said microcell when said virtual speed of movement measured by said direction finding is below a specified speed value when said mobile station is under control of said umbrella cell.