JPS6412626A - Mobile communication system - Google Patents

Mobile communication system

Info

Publication number
JPS6412626A
JPS6412626A JP62166912A JP16691287A JPS6412626A JP S6412626 A JPS6412626 A JP S6412626A JP 62166912 A JP62166912 A JP 62166912A JP 16691287 A JP16691287 A JP 16691287A JP S6412626 A JPS6412626 A JP S6412626A
Authority
JP
Japan
Prior art keywords
circuit
transmission power
time
signal
transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62166912A
Other languages
Japanese (ja)
Other versions
JP2603075B2 (en
Inventor
Izumi Horikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP62166912A priority Critical patent/JP2603075B2/en
Publication of JPS6412626A publication Critical patent/JPS6412626A/en
Application granted granted Critical
Publication of JP2603075B2 publication Critical patent/JP2603075B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To attain a simple and highly accurate interference measurement by interrupting the transmission power of a desired wave channel for a prescribed time, allowing a peripheral disturbing station to interrupt the transmission power synchronously therewith for a prescribed time only before and after the interruption of the desired channel and measuring a desired wave level and a disturbing wave level at the time of transmission OFF. CONSTITUTION:A communication signal from an input terminal 100 is converted into a signal compressed timewise by a time interrupting the transmission power intermittently by the compression circuit 6 and the result is sent via a modulator 7, a transmission circuit 8, an antenna multicoupler 9 and an antenna 10. A switch 11 at the output side of a transmission circuit 8 is operated on a frame signal obtained from a control signal input terminal 101 to interrupt the transmission power for a prescribed period only. On the other hand, a radio wave received via the antenna 10 and the antenna multicoupler 9 is restored into a base band signal by a reception circuit 13 and a demodulator 14 and a time expansion circuit reproduces the original signal and the result of measurement of the reception level by a level measuring instrument 16 is given to a control circuit 17 to obtain a desired wave level. Thus, the interference is measured simply with high accuracy.
JP62166912A 1987-07-06 1987-07-06 Mobile communication system Expired - Lifetime JP2603075B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62166912A JP2603075B2 (en) 1987-07-06 1987-07-06 Mobile communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62166912A JP2603075B2 (en) 1987-07-06 1987-07-06 Mobile communication system

Publications (2)

Publication Number Publication Date
JPS6412626A true JPS6412626A (en) 1989-01-17
JP2603075B2 JP2603075B2 (en) 1997-04-23

Family

ID=15839945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62166912A Expired - Lifetime JP2603075B2 (en) 1987-07-06 1987-07-06 Mobile communication system

Country Status (1)

Country Link
JP (1) JP2603075B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02192231A (en) * 1989-01-19 1990-07-30 Nippon Telegr & Teleph Corp <Ntt> Transmission power control system
JPH03117121A (en) * 1989-09-29 1991-05-17 Nippon Telegr & Teleph Corp <Ntt> Mobile communication channel switching control method
JPH0555997A (en) * 1991-08-23 1993-03-05 Nec Corp Tdma mobile body communication system
JP2017532923A (en) * 2014-09-16 2017-11-02 ゼットティーイー コーポレーションＺｔｅ Ｃｏｒｐｏｒａｔｉｏｎ Method and system for positioning base station interference

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57106250A (en) * 1980-12-23 1982-07-02 Nec Corp Monitor system for disturbing wave

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57106250A (en) * 1980-12-23 1982-07-02 Nec Corp Monitor system for disturbing wave

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02192231A (en) * 1989-01-19 1990-07-30 Nippon Telegr & Teleph Corp <Ntt> Transmission power control system
JPH03117121A (en) * 1989-09-29 1991-05-17 Nippon Telegr & Teleph Corp <Ntt> Mobile communication channel switching control method
JPH0555997A (en) * 1991-08-23 1993-03-05 Nec Corp Tdma mobile body communication system
JP2017532923A (en) * 2014-09-16 2017-11-02 ゼットティーイー コーポレーションＺｔｅ Ｃｏｒｐｏｒａｔｉｏｎ Method and system for positioning base station interference

Also Published As

Publication number Publication date
JP2603075B2 (en) 1997-04-23

Similar Documents

Publication Publication Date Title
US4850032A (en) Simulcast data communications system
MY121076A (en) Making time of arrival measurements.
GB2266434B (en) Method and apparatus for reducing interference in a radio communication link of a cellular communication system
CA2139919A1 (en) CDMA/TDD Radio Communication System
CA2097587A1 (en) Gsm interference band selection and reduced power handover
HK1004592A1 (en) Vox remote unit control in a cellular system
JPS6412626A (en) Mobile communication system
EP1030528A3 (en) Method of makin downlink operational measurements in a wireless communication system
ES457218A1 (en) Duplex mode radio telephone system - employs variable switching delay dependent on signal quality for retransmission of signal
JPS5418201A (en) Automatic band switching device for multi-band radio receiver
JPS5245813A (en) Wireless telephone system
JPS5652946A (en) Circuit test system of mobile communication
JPS6416979A (en) Method for measuring direction of moving body
JPS54162905A (en) Radiotelephony equipment
JPS5396715A (en) Trasmission/receiving system for radio communication
JPS564950A (en) Circuit test system of radio circuit
JPS57188147A (en) Radio transmitter and receiver
JPS5354904A (en) Dial signal transmission system
JPS5419303A (en) Transmission and reception system of signal
JPS5673936A (en) S/n monitor
JPS53138621A (en) Radio receiver
JPS5479503A (en) Radio telephone set
JPS6486633A (en) Mobile telephone system
JPS6461130A (en) Phase correction system
JPS5791067A (en) Data transmission and reception device