Patent ID: 7079859
Filing Date: 2006-07-18
Classification: H04W

Abstract:
1. A best-cell amendment method comprising the steps of: at a radio network controller: determining a hysteresis margin for each cell, this hysteresis margin being a threshold value for determining whether or not a best cell is to be amended, and notifying each mobile station of the determined hysteresis margin by way of a base station; at said mobile stations: measuring reception quality of a downlink signal of the best cell and reception quality of a downlink signal of another cell having the highest reception quality, and if the reception quality of said other cell having the highest reception quality is higher than the reception quality of said best cell by a margin that is equal to or greater than a set hysteresis margin, reporting the results of measuring reception quality as reception quality information to said radio network controller; at said radio network controller: upon receiving reception quality information from a mobile station, executing control to amend the best cells of mobile stations that transmitted the reception quality information; and at said radio network controller: measuring the degree of congestion of each cell and, based on the degree of congestion, amending the hysteresis margins of the cells.