US 6,212,394 B1Granted

Radio communication system

AssigneeMatsushita Electric Industrial Co., Ltd.

InventorShinya Isumi

Life of this patent

Estimating the term…

Loading patent…

Abstract

In a radio communication system (local radio system) having a plurality of radio cell stations (CS) and a plurality of radio personal stations (PS), when a certain radio personal station (PS) proceeds from a monitoring state to a call state, even during the call, the radio cell station (CS) of interest sends successively the information (slot and frequency information) which is required for the certain radio personal station (PS) to be returned back to the monitoring state to the certain radio personal station (PS) to be stored in the certain radio personal station (PS). By adopting such a procedure, when the call state has been quitted, even if the certain radio personal station proceeds once to a control channel, there is no need of obtaining the information required for the certain radio personal station to be returned back to the monitoring state. Since a time period for obtaining the information is not required, the transition from the call state to the monitoring state is immediately made.

Claims8

Dependent claims

A radio communication system including a radio personal station and a plurality of radio cell stations, said radio personal station being able to monitor and receive a voice and data which are informed at all times, wherein

each of said plurality of radio cell stations comprises:
a radio channel managing unit for managing channel information of a frequency and a slot which are to be used;
a radio cell station line connection controlling unit for managing a line connection between said radio personal station and the radio cell station;
and
an information channel controlling unit for storing channel information used to simultaneously inform information,
said radio personal station comprises:
a radio personal station line connection controlling unit for managing a line connection control between the radio cell station and the radio personal station;
and
an information channel storage unit for storing the channel information for the simultaneous information which is received from the radio cell station,
said radio cell station line connection controlling unit retrieves, when the radio personal station proceeds to a call state, the channel information stored in said information channel controlling unit to send the retrieved channel information to the radio personal station, and
said radio personal station line connection controlling unit sets, when the call state is quitted, a slot and a frequency on the basis of the channel information stored in said information channel storage unit to restart monitoring and reception.

8 more elements

Dependencies are inferred from the claim text.