WO1999031798A3 - A communication system, device and method - Google Patents
A communication system, device and method Download PDFInfo
- Publication number
- WO1999031798A3 WO1999031798A3 PCT/IB1998/001960 IB9801960W WO9931798A3 WO 1999031798 A3 WO1999031798 A3 WO 1999031798A3 IB 9801960 W IB9801960 W IB 9801960W WO 9931798 A3 WO9931798 A3 WO 9931798A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- output
- control input
- power
- power supply
- output power
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
- H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
- H03G3/3047—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers for intermittent signals, e.g. burst signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
- H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/045—Circuits with power amplifiers with means for improving efficiency
Abstract
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69829650T DE69829650T2 (en) | 1997-12-12 | 1998-12-07 | SYSTEM, APPARATUS AND METHOD FOR COMMUNICATION |
EP98955852A EP0960474B1 (en) | 1997-12-12 | 1998-12-07 | A communication system, device and method |
KR1019997007169A KR100573988B1 (en) | 1997-12-12 | 1998-12-07 | A communication device |
JP53224699A JP4159617B2 (en) | 1997-12-12 | 1998-12-07 | COMMUNICATION SYSTEM, COMMUNICATION DEVICE, AND COMMUNICATION METHOD |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97203902.8 | 1997-12-12 | ||
EP97203902 | 1997-12-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1999031798A2 WO1999031798A2 (en) | 1999-06-24 |
WO1999031798A3 true WO1999031798A3 (en) | 1999-07-22 |
Family
ID=8229049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB1998/001960 WO1999031798A2 (en) | 1997-12-12 | 1998-12-07 | A communication system, device and method |
Country Status (7)
Country | Link |
---|---|
US (2) | US6298222B1 (en) |
EP (1) | EP0960474B1 (en) |
JP (1) | JP4159617B2 (en) |
KR (1) | KR100573988B1 (en) |
CN (1) | CN1118927C (en) |
DE (1) | DE69829650T2 (en) |
WO (1) | WO1999031798A2 (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6748246B1 (en) * | 2000-07-05 | 2004-06-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for selecting an access technology in a multi-mode terminal |
EP1215820A3 (en) * | 2000-12-05 | 2004-04-14 | Zarlink Semiconductor Limited | Radio frequency tuner |
JP3664990B2 (en) * | 2001-04-25 | 2005-06-29 | 株式会社東芝 | High frequency circuit and communication system |
US6683496B2 (en) | 2001-08-20 | 2004-01-27 | Harris Corporation | System and method for minimizing dissipation in RF power amplifiers |
US7120401B2 (en) * | 2001-10-12 | 2006-10-10 | Kyocera Wireless Corp. | System and method for controlling transmitter output levels in a wireless communications device |
EP1349269A1 (en) * | 2002-03-28 | 2003-10-01 | Sony International (Europe) GmbH | Rf output power control for mobile phones with a variable dc/dc converter |
DE10250229B4 (en) * | 2002-10-29 | 2004-08-05 | Hüttinger Elektronik GmbH & Co. KG | Power control for high frequency amplifiers |
DE10307426B4 (en) * | 2003-02-21 | 2006-06-14 | Infineon Technologies Ag | Circuit arrangement for transmitting and receiving radio signals and use of such, as well as methods for frequency conversion in an amplification device |
EP1611697B1 (en) * | 2003-03-27 | 2006-07-26 | Koninklijke Philips Electronics N.V. | Method and system for power saving in a transmitter and transmitter |
US7068985B2 (en) * | 2003-05-19 | 2006-06-27 | Sony Ericsson Mobile Communication Ab | Radio transmitters with temperature compensated power control profiles and methods of operating same |
GB2402279B (en) * | 2003-05-28 | 2006-04-26 | Ubinetics Ltd | Front end module |
EP1557956B1 (en) * | 2004-01-21 | 2007-03-14 | Nec Corporation | Transmission power control device and method thereof, computer program for transmission power control device, and radio transmitter |
KR100595652B1 (en) * | 2004-02-12 | 2006-07-03 | 엘지전자 주식회사 | Transmission power control apparatus and method for mobile communication terminal |
US7102442B2 (en) * | 2004-04-28 | 2006-09-05 | Sony Ericsson Mobile Communications Ab | Wireless terminals, methods and computer program products with transmit power amplifier input power regulation |
US7933567B2 (en) * | 2006-01-26 | 2011-04-26 | Qualcomm, Incorporated | Method and apparatus for achieving linear monotonic output power |
US20090131095A1 (en) * | 2007-11-21 | 2009-05-21 | Broadcom Corporation | Power Supply Control Based on Transmit Power Control and Methods for use Therewith |
NO332958B2 (en) * | 2008-12-05 | 2016-08-08 | Completion Tech Resources As | Plug device |
US8391932B2 (en) * | 2009-02-23 | 2013-03-05 | Sierra Wireless, Inc. | Apparatus providing plural wireless transceivers within a desired power budget and associated method |
TWI482429B (en) * | 2009-07-03 | 2015-04-21 | Chi Mei Comm Systems Inc | Wireless communiction device and power amplifier efficiency control module thereof |
CN102316558A (en) * | 2010-06-30 | 2012-01-11 | 中兴通讯股份有限公司 | Method and device for realizing wireless base station power supply management and control |
US9728378B2 (en) * | 2014-05-02 | 2017-08-08 | Reno Technologies, Inc. | Method for controlling an RF generator |
US10431428B2 (en) | 2014-01-10 | 2019-10-01 | Reno Technologies, Inc. | System for providing variable capacitance |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4811421A (en) * | 1986-03-14 | 1989-03-07 | Christophe Havel | Transmission power control device in a radio communication transmitting/receiving station |
US5129098A (en) * | 1990-09-24 | 1992-07-07 | Novatel Communication Ltd. | Radio telephone using received signal strength in controlling transmission power |
US5485486A (en) * | 1989-11-07 | 1996-01-16 | Qualcomm Incorporated | Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01153146A (en) | 1987-12-11 | 1989-06-15 | Yokogawa Medical Syst Ltd | Ultrasonic diagnostic apparatus |
JP2746685B2 (en) * | 1989-09-06 | 1998-05-06 | 富士通株式会社 | Transmission output control circuit |
US5265119A (en) * | 1989-11-07 | 1993-11-23 | Qualcomm Incorporated | Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system |
US5056109A (en) * | 1989-11-07 | 1991-10-08 | Qualcomm, Inc. | Method and apparatus for controlling transmission power in a cdma cellular mobile telephone system |
US5276912A (en) * | 1990-02-06 | 1994-01-04 | Motorola, Inc. | Radio frequency power amplifier having variable output power |
JPH04192959A (en) * | 1990-11-27 | 1992-07-13 | Fujitsu Ltd | Private paging system |
US5251331A (en) | 1992-03-13 | 1993-10-05 | Motorola, Inc. | High efficiency dual mode power amplifier apparatus |
JPH06252820A (en) * | 1993-02-26 | 1994-09-09 | Sony Corp | Power supply circuit and radio communications equipment using thereof |
US5787336A (en) * | 1994-11-08 | 1998-07-28 | Space Systems/Loral, Inc. | Satellite communication power management system |
JPH08204587A (en) * | 1995-01-23 | 1996-08-09 | Fujitsu Ltd | Portable telephone set |
US5710981A (en) * | 1995-05-23 | 1998-01-20 | Ericsson Inc. | Portable radio power control device and method using incrementally degraded received signals |
JP2803626B2 (en) * | 1996-04-05 | 1998-09-24 | 日本電気株式会社 | Transmission power control method for mobile radio terminals |
JPH1022756A (en) * | 1996-07-04 | 1998-01-23 | Mitsubishi Electric Corp | Radio transmitter and its transmission control method |
JPH1079701A (en) * | 1996-09-03 | 1998-03-24 | Fujitsu Ltd | Mobile communication terminal and its transmission power control system |
KR100266806B1 (en) * | 1996-12-11 | 2000-09-15 | 윤종용 | Circuit and method for saving battery in a portable radio communication terminal |
US6067458A (en) * | 1997-07-01 | 2000-05-23 | Qualcomm Incorporated | Method and apparatus for pre-transmission power control using lower rate for high rate communication |
-
1998
- 1998-12-07 WO PCT/IB1998/001960 patent/WO1999031798A2/en active IP Right Grant
- 1998-12-07 EP EP98955852A patent/EP0960474B1/en not_active Expired - Lifetime
- 1998-12-07 CN CN98803907A patent/CN1118927C/en not_active Expired - Lifetime
- 1998-12-07 DE DE69829650T patent/DE69829650T2/en not_active Expired - Lifetime
- 1998-12-07 JP JP53224699A patent/JP4159617B2/en not_active Expired - Lifetime
- 1998-12-07 KR KR1019997007169A patent/KR100573988B1/en active IP Right Grant
- 1998-12-08 US US09/207,528 patent/US6298222B1/en not_active Expired - Lifetime
-
2001
- 2001-04-24 US US09/840,819 patent/US7321750B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4811421A (en) * | 1986-03-14 | 1989-03-07 | Christophe Havel | Transmission power control device in a radio communication transmitting/receiving station |
US5485486A (en) * | 1989-11-07 | 1996-01-16 | Qualcomm Incorporated | Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system |
US5129098A (en) * | 1990-09-24 | 1992-07-07 | Novatel Communication Ltd. | Radio telephone using received signal strength in controlling transmission power |
Non-Patent Citations (1)
Title |
---|
PATENT ABTRACTS OF JAPAN; & JP 9064757 A (MATSUSHITA ELECTRON CORP) 7 March 1997. * |
Also Published As
Publication number | Publication date |
---|---|
WO1999031798A2 (en) | 1999-06-24 |
US7321750B2 (en) | 2008-01-22 |
KR100573988B1 (en) | 2006-04-25 |
EP0960474A2 (en) | 1999-12-01 |
JP4159617B2 (en) | 2008-10-01 |
DE69829650T2 (en) | 2006-02-09 |
CN1118927C (en) | 2003-08-20 |
DE69829650D1 (en) | 2005-05-12 |
US6298222B1 (en) | 2001-10-02 |
CN1252184A (en) | 2000-05-03 |
KR20000070904A (en) | 2000-11-25 |
US20010014613A1 (en) | 2001-08-16 |
EP0960474B1 (en) | 2005-04-06 |
JP2001513972A (en) | 2001-09-04 |
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