Repeater and follow-up notification method after broadcast communication thereof
AssigneeHitachi Kokusai Electric Inc.
InventorMitsuo Nawata
Life of this patent
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Abstract
A repeater including a first wireless unit that performs transmission and reception using a frequency for communicating with a base station and a second wireless unit that performs transmission and reception using a frequency for communicating with a mobile station performs a follow-up communication after broadcast communication. The repeater causes, while the second wireless unit transmits a broadcast communication signal (TCH (voice data)) to the mobile station, a transmitter (TX) provided on the first wireless unit to regularly transmit a switching signal (UI signal (for designating a direct communication wireless channel, and for setting a direct communication simplex call) for switching the mobile station to a broadcast communication channel.
Claims12
A repeater comprising:
- a first wireless unit that performs transmission and reception using a frequency for communicating with a base station;
- and
- a second wireless unit that performs transmission and reception using a frequency for communicating with a mobile station, wherein:
- the repeater causes, while the second wireless unit transmits a broadcast communication signal to the mobile station, a transmitter provided on the first wireless unit to regularly transmit a switching signal for switching the mobile station to a broadcast communication channel.
A follow-up notification method after broadcast communication of a repeater comprising a first wireless unit that performs transmission and reception using a frequency for communicating with a base station, and a second wireless unit that performs transmission and reception using a frequency for communicating with a mobile station, the method comprising the steps of:
- transmitting, by the second wireless unit, a broadcast communication signal to the mobile station;
- and
- transmitting regularly, by a transmitter provided on the first wireless unit, a switching signal for switching the mobile station to a broadcast communication channel while the broadcast communication signal is transmitted.
A wireless communication system, comprising:
- a base station that manages a first communication area;
- a repeater that includes a first wireless unit communicating with the base station using one or multiple frequencies, and a second wireless unit communicating with a mobile station using a second frequency, and that controls a second communication area;
- a mobile station that communicates with the repeater using the second frequency within the second communication area;
- and
- a control station that is connected to the base station and that controls a control channel and broadcast communication channel using the one or multiple frequencies and the second frequency, and that transmits a signal to the mobile station via the repeater, wherein:
- the repeater causes, while the second wireless unit transmits a broadcast communication signal to the mobile station via the broadcast communication channel using the second frequency, a transmitter provided on the first wireless unit to regularly transmit a switching signal for switching the mobile station to a broadcast communication channel.
Dependencies are inferred from the claim text.