Title:
航空無線電話通信システム
Document Type and Number:
Japanese Patent JP3547754
Kind Code:
B2
Abstract:
The airborne radio communications system of the present invention enables an airborne radio to communicate with the ground based cellular radiotelephone system. The present invention also enables the ground based system to keep track of the location of the airborne radiotelephone and page it when a call from the ground based telephone system is received. The ground base station is connected to upward radiating antennas that form airborne cells. As the aircraft with the radio flies through the airborne cells, the airborne relay receives the signals from the base station and relays them to the radio. If the radio is transmitting signals, the relay transmits those signals, through the airborne cells, to the base station. As the aircraft moves from cell to cell, the radio is handed off to the next cell to maintain communications with the ground.
More Like This:
| JPH05347576 | SELECTIVE CALL RADIO RECEIVER WITH DISPLAY |
| JP2570618 | STRUCTURE OF OUTDOOR COMMUNICATION EQUIPMENT |
| JPH0514460 | CORDLESS TELEPHONE SET |
Inventors:
Gilhausen, Klein S.
Application Number:
JP50444296A
Publication Date:
July 28, 2004
Filing Date:
July 07, 1995
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H04B7/26; H04B7/185; H04W64/00; H04W84/06; (IPC1-7): H04B7/26; H04Q7/22
Domestic Patent References:
| JP62126726A | ||||
| JP514270A | ||||
| JP555991A | ||||
| JP6503221A |
Foreign References:
| US5123112 |
Other References:
G.D'Aria ET AL,TERRESTRIAL FLIGHT TELEPHONE SYSTEM:INTEGRATION ISSUES FOR A PAN-EUROPEAN NETWORK,Fifth Nordic Seminar on Digital Mobile Radio Communications,Helsinki Finland,December 1992,p.123-130
E.Berruto ET AL,TERRESTRIAL FLIGHT TELEPHONE SYSTEM FOR AERONAUTICAL PUBLIC CORRESPONDENCE:OVERVIEW AND HADOVER PERFORMANCE,11312 MRC Mobile Radio Conference,Nice France,November 1991,p.221-228
E.Berruto ET AL,TERRESTRIAL FLIGHT TELEPHONE SYSTEM FOR AERONAUTICAL PUBLIC CORRESPONDENCE:OVERVIEW AND HADOVER PERFORMANCE,11312 MRC Mobile Radio Conference,Nice France,November 1991,p.221-228
Attorney, Agent or Firm:
Takehiko Suzue
Sadao Muramatsu
Atsushi Tsuboi
Ryo Hashimoto
Toshio Shirane
Sadao Muramatsu
Atsushi Tsuboi
Ryo Hashimoto
Toshio Shirane