Patent ID: 6161015
Filing Date: 2000-12-12
Classification: H04W

Abstract:
In a multi-cell communication system, a method of improving communication coverage, comprising:providing a first neighbor cell list to a communication unit wherein the communication unit is engaged in a comnmunication on a channel in a first cell;determining periodically a geographical location of the communication unit to a greater specificity than that of a cell site service coverage area;determining that the first neighbor cell list no longer relates to a current geographical location of the communication unit that is determined to a greater specificity than that of a cell site service coverage area;repeatedly determining that the communication unit needs to hand-off from the channel in the first cell to a channel in a second cell;repeatedly denying the communication unit access to the channel in the second cell to produce a quantity of hand-off denials; andproviding the communication unit with a second neighbor cell list related to the current geographical location of the communication unit, wherein the step of providing the communication unit with a second neighbor cell list comprises the step of providing the communication unit with a second neighbor cell list when the first neighbor cell list no longer relates to a current geographical location of the communication unit and the quantity of hand-off denials reaches a threshold.