JPS6143026A - System for controlling and transmitting received electric field - Google Patents

System for controlling and transmitting received electric field

Info

Publication number
JPS6143026A
JPS6143026A JP16389884A JP16389884A JPS6143026A JP S6143026 A JPS6143026 A JP S6143026A JP 16389884 A JP16389884 A JP 16389884A JP 16389884 A JP16389884 A JP 16389884A JP S6143026 A JPS6143026 A JP S6143026A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
circuit
system
reception
amplifier circuit
level
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.)
Pending
Application number
JP16389884A
Inventor
Koichi Yamaguchi
Original Assignee
Nippon Telegr & Teleph Corp <Ntt>
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

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATIONS NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC [Transmission power control]

Abstract

PURPOSE:To prevent waste of power by measuring a reception level at a mobile station and increasing/decreasing the transmission power in response to the value of a reception level. CONSTITUTION:A radio wave of an opposite station inputted from an intenna 1 is received by a system with system comprising a high frequency amplifier circuit 3, a frequency converting circuit 4 and an intermediate frequency amplifier circuit 6 via a transmission/reception common unit 2, and transmitted to the opposite station by a system comprising an oscillation modulation circuit 12, a multiplication amplifier circuit 13, a buffer amplifier circuit 14 and a power amplifier circuit 15. A received level of a signal during reception is detected by a reception level detection circuit 21 connected to the circuit 6 and given the a control voltage generating circuit 22. The circuit 22 generates a control voltage having a prescribed relation with the received level and outputs it to a final stage input control circuit 23. The circuit 23 changes the attenuation by the DC voltage and controls the transmission output to be small or large in response to the reception level.
JP16389884A 1984-08-06 1984-08-06 System for controlling and transmitting received electric field Pending JPS6143026A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16389884A JPS6143026A (en) 1984-08-06 1984-08-06 System for controlling and transmitting received electric field

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16389884A JPS6143026A (en) 1984-08-06 1984-08-06 System for controlling and transmitting received electric field

Publications (1)

Publication Number Publication Date
JPS6143026A true true JPS6143026A (en) 1986-03-01

Family

ID=15782906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16389884A Pending JPS6143026A (en) 1984-08-06 1984-08-06 System for controlling and transmitting received electric field

Country Status (1)

Country Link
JP (1) JPS6143026A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63121328A (en) * 1986-11-11 1988-05-25 Sanyo Electric Co Ltd Transmission power controller for cordless telephone set
FR2614158A1 (en) * 1987-04-16 1988-10-21 Setsys Radio telephone, especially portable
JPS6416149A (en) * 1987-07-10 1989-01-19 Fujitsu Ltd Transmission power control system
JPH0323725A (en) * 1989-06-20 1991-01-31 Fujitsu Ltd Mobile radio communication equipment
JPH04501995A (en) * 1988-11-21 1992-04-09
JPH06311194A (en) * 1993-04-21 1994-11-04 Nec Corp Circuit for compensating distortion of multivalue quadrature amplitude modulated wave
EP0836287A2 (en) * 1996-10-08 1998-04-15 Nec Corporation Mobile communication system with transmission power control
US5943610A (en) * 1996-04-05 1999-08-24 Nec Corporation Transmission power control with dynamic step values

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5797240A (en) * 1980-12-08 1982-06-16 Matsushita Tsushin Kogyo Kk Radio equipment for simultaneous transmission and reception

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5797240A (en) * 1980-12-08 1982-06-16 Matsushita Tsushin Kogyo Kk Radio equipment for simultaneous transmission and reception

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63121328A (en) * 1986-11-11 1988-05-25 Sanyo Electric Co Ltd Transmission power controller for cordless telephone set
FR2614158A1 (en) * 1987-04-16 1988-10-21 Setsys Radio telephone, especially portable
JPS6416149A (en) * 1987-07-10 1989-01-19 Fujitsu Ltd Transmission power control system
JPH04501995A (en) * 1988-11-21 1992-04-09
JPH0323725A (en) * 1989-06-20 1991-01-31 Fujitsu Ltd Mobile radio communication equipment
JPH06311194A (en) * 1993-04-21 1994-11-04 Nec Corp Circuit for compensating distortion of multivalue quadrature amplitude modulated wave
US5943610A (en) * 1996-04-05 1999-08-24 Nec Corporation Transmission power control with dynamic step values
EP0836287A2 (en) * 1996-10-08 1998-04-15 Nec Corporation Mobile communication system with transmission power control
EP0836287A3 (en) * 1996-10-08 2002-06-12 Nec Corporation Mobile communication system with transmission power control

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