Patent ID: 6842616
Filing Date: 2005-01-11
Classification: H04W

Abstract:
1. A cellular system comprising at least one mobile station and a plurality of base stations, wherein said mobile station establishes a communication line with N first base stations wherein N is an integer equal to or greater than one (1≦N), measures receipt quality in pilot signals transmitted from said N first base stations, determines M second base stations to make communication therethrough among said N first base stations, based on measurement results of said receipt quality, wherein M is an integer equal to or greater than one, but equal to or smaller than N(1≦M≦N), and transmits an designation signal to said M second base stations through upward line to designate said M second base stations as a base station through which said mobile station makes communication, and each of said base stations makes communication with said mobile station, if designated by said designation signal as a base station through which said mobile station makes communication, and does not make communication with said mobile station, if not designated by said designation signal, said cellular system further includes a first apparatus for varying a signal-signal-receipt error rate in said designation signal to be transmitted through upward line in accordance with a target signal-signal-receipt error rate in downward line.