Patent ID: 6393281
Filing Date: 2002-05-21
Classification: H04B,H04W

Abstract:
A method for providing communication between a mobile terminal and a plurality of unsynchronized base stations comprising the steps of:initiating the establishment of a first two-way call over a first communication link, said first two-way call carrying two-way signals between said mobile terminal and a first base station; establishing a second communication link between said mobile terminal and a second base station; evaluating at least one characteristic of said second communication link at said mobile terminal; in response to said evaluating step, said mobile terminal initiating the establishment of a second two-way call, which is a duplicate of said first two-way call, over said second communication link while said first two-way call exists; and performing a hand-off by simultaneously switching said two-way signals from said first communication link to said second communication link under control of said mobile terminal.