Patent ID: 6014566
Filing Date: 2000-01-11
Classification: H04W

Abstract:
A mobile communication system comprising a plurality of mobile terminals, a plurality of radio base stations belonging to low- and high-speed mobile communication systems and serving to perform radio communication with said mobile terminals, and a mobile subscriber connecting apparatus to which said radio base stations are connected, said mobile communication system using both a first communication mode including said low-speed mobile communication system and a micro-cell zone and a second communication mode including said high-speed mobile communication system and a macro-cell zone,said mobile terminal includingfirst mode selecting means for selecting and setting one of the first and second communication modes constituting a system selection mode,communication control means for performing position registration and an originating/terminating operation of said terminal in the communication mode selected by said first mode selecting means,second mode selecting means for selecting one of a narrow-area calling mode of receiving a call in a narrow calling area constituted by at least one of said radio ports belonging to said high-speed mobile communication system or said low-speed mobile communication system, and a wide-area calling mode of receiving a call in a plurality of narrow calling areas,first transmitting means for, when the calling mode is selected by said second mode selecting means, transmitting a calling mode registration signal to said radio port belonging to said currently selected mobile communication system,second transmitting means for, when position registration is to be performed by said communication control means, adding the calling mode selected by said second mode selecting means to a position registration request signal, and transmitting the signal to said radio port belonging to said currently selected mobile communication system,third mode selecting means for, when the system selection mode set to the first communication mode, selecting an ON/OFF state of a movement state notification mode of notifying a movement state with respect to a call signal while said mobile terminal is moving at a high speed, andterminating call responding means for transmitting, to said radio port belonging to said low-speed mobile communication system, a terminating call response signal to which movement state information indicating that said mobile terminal is moving at a high speed, in response to a received call signal, when the system selection mode is set to the first communication mode, said mobile terminal is moving at a high speed, and the movement state notification mode is set in the ON state, andsaid mobile subscriber connecting apparatus includingnotifying means for notifying an originating subscriber that said mobile terminal is moving at a high speed, upon reception of a terminating call response signal having movement state information added thereto through said radio base station.