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WO2002032006A3 - Rf channel power control - Google Patents

Rf channel power control Download PDF

Info

Publication number
WO2002032006A3
WO2002032006A3 PCT/EP2001/011473 EP0111473W WO0232006A3 WO 2002032006 A3 WO2002032006 A3 WO 2002032006A3 EP 0111473 W EP0111473 W EP 0111473W WO 0232006 A3 WO0232006 A3 WO 0232006A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal levels
power control
channel power
output power
controlling
Prior art date
Application number
PCT/EP2001/011473
Other languages
French (fr)
Other versions
WO2002032006A2 (en
Inventor
David Smith
Original Assignee
Ericsson Telefon Ab L M
David Smith
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 Ericsson Telefon Ab L M, David Smith filed Critical Ericsson Telefon Ab L M
Priority to AU2002223587A priority Critical patent/AU2002223587A1/en
Publication of WO2002032006A2 publication Critical patent/WO2002032006A2/en
Publication of WO2002032006A3 publication Critical patent/WO2002032006A3/en

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
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • 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
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/223—TPC being performed according to specific parameters taking into account previous information or commands predicting future states of the transmission

Landscapes

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

Abstract

A method for controlling output power of an RF channel in a frequency hopping (FH) system having a plurality of carriers is disclosed. The method comprises measuring signal levels in the channels over a predetermined time period, identifying a pattern in the measured signal level, predicting future signal levels, and controlling the RF output power on the basis of the predicted signal levels.
PCT/EP2001/011473 2000-10-09 2001-10-04 Rf channel power control WO2002032006A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002223587A AU2002223587A1 (en) 2000-10-09 2001-10-04 Rf channel power control

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0024680A GB2367981A (en) 2000-10-09 2000-10-09 Transmission power control in a frequency hopping RF system
GB0024680.1 2000-10-09

Publications (2)

Publication Number Publication Date
WO2002032006A2 WO2002032006A2 (en) 2002-04-18
WO2002032006A3 true WO2002032006A3 (en) 2002-07-18

Family

ID=9900918

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/011473 WO2002032006A2 (en) 2000-10-09 2001-10-04 Rf channel power control

Country Status (3)

Country Link
AU (1) AU2002223587A1 (en)
GB (1) GB2367981A (en)
WO (1) WO2002032006A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1734660A1 (en) * 2005-06-15 2006-12-20 Matsushita Electric Industrial Co., Ltd. Transmission power control in a system using frequency hopping
CN102056275A (en) * 2009-11-03 2011-05-11 中兴通讯股份有限公司 Closed loop power control method for frequency hopping system and base station

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652648A1 (en) * 1993-11-05 1995-05-10 Matsushita Electric Industrial Co., Ltd. Transmitting and receiving apparatus
WO1998053559A2 (en) * 1997-05-16 1998-11-26 Nokia Networks Oy Power control in mobile communications system
EP0996240A2 (en) * 1998-10-16 2000-04-26 Mitsubishi Electric Information Technology Centre Europe B.V. Method of closed loop control of the power received by a receiver and transmitted by a transmitter of a telecommunication system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6115408A (en) * 1998-04-03 2000-09-05 Butterfly Vsli Ltd. Automatic transmission power level control method in a frequency hopping communication system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652648A1 (en) * 1993-11-05 1995-05-10 Matsushita Electric Industrial Co., Ltd. Transmitting and receiving apparatus
WO1998053559A2 (en) * 1997-05-16 1998-11-26 Nokia Networks Oy Power control in mobile communications system
EP0996240A2 (en) * 1998-10-16 2000-04-26 Mitsubishi Electric Information Technology Centre Europe B.V. Method of closed loop control of the power received by a receiver and transmitted by a transmitter of a telecommunication system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TANSKANEN J M A ET AL: "Prediction of received signal power in CDMA cellular systems", VEHICULAR TECHNOLOGY CONFERENCE, 1995 IEEE 45TH CHICAGO, IL, USA 25-28 JULY 1995, NEW YORK, NY, USA,IEEE, US, 25 July 1995 (1995-07-25), pages 922 - 926, XP010167077, ISBN: 0-7803-2742-X *

Also Published As

Publication number Publication date
AU2002223587A1 (en) 2002-04-22
WO2002032006A2 (en) 2002-04-18
GB0024680D0 (en) 2000-11-22
GB2367981A (en) 2002-04-17

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