To allow the communication equipment to be adaptive to a moving location by providing an operator voice input means, an audio output means, an RF transceiver section compatible with an operating frequency of a cellular system, and a micro-controller.
While a communication system 10 is in operation with a mobile subscriber unit 12, each base station 14 discriminates intensity of a signal receiving each call on progress and gives the result to a network controller 16. When the unit 12 moves in the inside of a cellular communication environment given from the system 10, the controller 16 uses signal intensity information received from the specific unit 12 at each station 14 as to whether or not the unit 12 is handed off is discriminated. Through the hand-off of the mobile subscriber unit allows to keep communication with the unit 12 when the unit moves from a cell site to a succeeding cell site.
DAANE JOHN
JAGGI SANDEEP
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