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WO2007067004A3 - Terminal and method for controlling transmission power - Google Patents

Terminal and method for controlling transmission power Download PDF

Info

Publication number
WO2007067004A3
WO2007067004A3 PCT/KR2006/005318 KR2006005318W WO2007067004A3 WO 2007067004 A3 WO2007067004 A3 WO 2007067004A3 KR 2006005318 W KR2006005318 W KR 2006005318W WO 2007067004 A3 WO2007067004 A3 WO 2007067004A3
Authority
WO
WIPO (PCT)
Prior art keywords
power
gain
controller
transmission
modulator
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.)
Ceased
Application number
PCT/KR2006/005318
Other languages
French (fr)
Other versions
WO2007067004A2 (en
Inventor
Dae-Ho Kim
Jun-Woo Kim
Kyung-Yeol Sohn
Hyeong-Sook Park
Youn-Ok Park
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.)
Electronics and Telecommunications Research Institute ETRI
Samsung Electronics Co Ltd
SK Telecom Co Ltd
KT Corp
SK Broadband Co Ltd
Original Assignee
Electronics and Telecommunications Research Institute ETRI
Samsung Electronics Co Ltd
SK Telecom Co Ltd
KT Corp
Hanaro Telecom Inc
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
Priority claimed from KR1020060118803A external-priority patent/KR101315478B1/en
Application filed by Electronics and Telecommunications Research Institute ETRI, Samsung Electronics Co Ltd, SK Telecom Co Ltd, KT Corp, Hanaro Telecom Inc filed Critical Electronics and Telecommunications Research Institute ETRI
Priority to US12/095,275 priority Critical patent/US7970363B2/en
Publication of WO2007067004A2 publication Critical patent/WO2007067004A2/en
Anticipated expiration legal-status Critical
Publication of WO2007067004A3 publication Critical patent/WO2007067004A3/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/06—TPC algorithms
    • H04W52/10—Open loop power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/36—Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/52—Transmission power control [TPC] using AGC [Automatic Gain Control] circuits or amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/245—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/246—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where the output power of a terminal is based on a path parameter calculated in said terminal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A terminal of a communication system includes a power amplifier (400), an open-loop power controller (500), a gain controller (200), a modulator (100), and a digital/analog converter (300). The power amplifier (400) amplifies transmission power of a transmission signal. The open-loop power controller (500) measures a received signal strength to control the transmission power, and increases a gain of the power amplifier according to the received signal strength. The gain controller (200) sets a power concentration gain and applies the power concentration gain to the transmission signal when the gain of the power amplifier (400) is maximized. The modulator (100) modulates the transmission signal. The digital/analog converter (300) converts an input signal to an analog signal. The gain controller (200) applies the power concentration gain to the transmission signal modulated by the modulator (100), and transmits the power concentration gain to the digital/analog converter (300).
PCT/KR2006/005318 2005-12-08 2006-12-08 Terminal and method for controlling transmission power Ceased WO2007067004A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/095,275 US7970363B2 (en) 2005-12-08 2006-12-08 Terminal and method for controlling transmission power

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20050119930 2005-12-08
KR10-2005-0119930 2005-12-08
KR10-2006-0118803 2006-11-29
KR1020060118803A KR101315478B1 (en) 2005-12-08 2006-11-29 Terminal and method of controlling trasmitting power thereof

Publications (2)

Publication Number Publication Date
WO2007067004A2 WO2007067004A2 (en) 2007-06-14
WO2007067004A3 true WO2007067004A3 (en) 2008-07-31

Family

ID=38123317

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2006/005318 Ceased WO2007067004A2 (en) 2005-12-08 2006-12-08 Terminal and method for controlling transmission power

Country Status (1)

Country Link
WO (1) WO2007067004A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0944182A2 (en) * 1998-03-18 1999-09-22 Nec Corporation Method and apparatus for adjusting transmission power of a CDMA terminal
WO2001005057A1 (en) * 1999-07-08 2001-01-18 Telefonaktiebolaget Lm Ericsson (Publ) Transmit power control for mcpa-equipped base stations
US6256502B1 (en) * 1998-12-23 2001-07-03 Nortel Networks Limited Wideband multicarrier power control for a cellular PCS basestation tranmitter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0944182A2 (en) * 1998-03-18 1999-09-22 Nec Corporation Method and apparatus for adjusting transmission power of a CDMA terminal
US6256502B1 (en) * 1998-12-23 2001-07-03 Nortel Networks Limited Wideband multicarrier power control for a cellular PCS basestation tranmitter
WO2001005057A1 (en) * 1999-07-08 2001-01-18 Telefonaktiebolaget Lm Ericsson (Publ) Transmit power control for mcpa-equipped base stations

Also Published As

Publication number Publication date
WO2007067004A2 (en) 2007-06-14

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