MOBILE RADIO COMMUNICATION SYSTEM

• Main Authors: KUDO EISUKE, HATTORI TAKESHI, OGOSE SHIGEAKI
• Format: Patent
• Language: English
• Published: 02.07.1996
• Edition: 6
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; TRANSMISSION; WIRELESS COMMUNICATIONS NETWORKS

PURPOSE: To reduce the influence of fading by selecting plural base stations the reception powers from which at a mobile station exceed a prescribed value and simultaneously transmitting signals from these base stations to the mobile station with different frequencies and subjecting them to diversity synthesis. CONSTITUTION: The signal transmitted from a mobile station 2 is received by base stations 1-1 and 1-2, and a control station 3 performs diversity synthesis. Signals transmitted from base stations 1-1 and 1-2 are received by the mobile station 2 and are subjected to diversity synthesis. When the mobile station 2 moves to a point 2 in the vicinity of the boundary of a radio zone A and the reception power from the base station 1-1 is reduced to the prescribed value or smaller, communication with the base station 1-1 is switched to a base station 1-3 which the reception power from is larger. When the mobile station 2 moves to a point 3 in a radio zone B and the reception power from the base station 1-2 is reduced to the prescribed value or smaller, communication with the base station 1-2 is switched to that with the base station 1-4 which the reception power from is larger. In the same manner, communication with the base station 1-3 is switched to that with a base station 1-5 at a point 4.