Patent ID: 6243575
Filing Date: 2001-06-05
Classification: H04W

Abstract:
A mobile communication system comprising:an existing base station for controlling a fixed radio zone that covers a predetermined area;a mobile base station for controlling a mobile radio zone that covers an inner space of a mobile object; anda mobile terminal, wherein the mobile base station has:first communication means for communicating with the existing base station such that the mobile base station serves as a mobile base station for the existing base station;second communication means for communicating with the mobile terminal such that the mobile base station serves as a fixed base station for the mobile terminal when the mobile terminal is present in the mobile radio zone of the mobile base station; andmain control means for controlling path connection between the first and second communication means, andwherein the second communication means transmits signals whose level is greater than the level of signals received from the fixed radio zone, andwherein the level of signals to be transmitted is controlled to be relatively greater than the level of received signals.