Title:
RADIO REPEATER SYSTEM
Document Type and Number:
Japanese Patent JP2949621
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent any abnormal suppression on cross-talk or received signals in communication related with a repeater station by providing a time-division repeating means for transmitting information by the next packet of a transmission time slot and a means for operating the simultaneous transmission and reception of plural channels by inverting the transmission and reception time slots of an adjacent control station or repeater station for each repeater station.
SOLUTION: Information can be received in a prescribed area by broadcasting information by a control station and repeater stations (a)-(k). The radio relay of this information is operated by editing information data at a downward channel f1 for relay in a 430 MHz band, and successively operating relay transmission from the control station through all repeater stations from an adjacent repeater station to an adjacent repeater station. The transmission of information from the control station and the repeater stations (a)-(g) to each area is operated by broadcasting at a channel f2. Information from a user having an ID under contract with this radio repeater system is transmitted and received at a channel f3, and successively relayed through the repeater stations, and connected with the control station.
Inventors:
MATOI KAZUMASA
Application Number:
JP4425998A
Publication Date:
September 20, 1999
Filing Date:
February 12, 1998
Export Citation:
Assignee:
YAESU MUSEN KK
International Classes:
H04J3/00; H04B7/15; H04B7/24; H04B7/26; H04J3/08; H04W28/06; H04W72/04; H04W84/18; H04W88/04; (IPC1-7): H04B7/15; H04B7/24; H04J3/00; H04J3/08
Domestic Patent References:
| JP49115713A | ||||
| JP61218231A | ||||
| JP795139A | ||||
| JP856216A |