Patent ID: 6421538
Filing Date: 2002-07-16
Classification: H04W

Abstract:
A radio telephone operative in at least two radio telephone systems, the radio telephone comprising communication means respectively associated with each of the radio telephone systems, at least one of the radio telephone systems being a cellular system and at least one of the radio telephone systems being a non-cellular system, sensing means for sensing the velocity of movement of the radio telephone, and selection means responsive to the sensing means for selecting one of respective said communication means for the said telephone systems in dependence, wholly or partially, on the sensed velocity,wherein the telephone systems include a micro-cellular telephone system and a macro-cellular telephone system, the selection means selecting the micro-cellular system when the velocity is low and selecting the macro-cellular system when the velocity is high, and wherein the telephone systems have networks with which the telephone communicates and at least one network has means for detecting radio telephone velocity and for transmitting information regarding said velocity to the radio telephone.