WO2001054289A3 - Method for determining the current signal-to-interference ratio and for controlling the power in mobile radio systems comprising code division multiplex - Google Patents

Method for determining the current signal-to-interference ratio and for controlling the power in mobile radio systems comprising code division multiplex Download PDF

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Publication number
WO2001054289A3
WO2001054289A3 PCT/DE2001/000239 DE0100239W WO0154289A3 WO 2001054289 A3 WO2001054289 A3 WO 2001054289A3 DE 0100239 W DE0100239 W DE 0100239W WO 0154289 A3 WO0154289 A3 WO 0154289A3
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WO
WIPO (PCT)
Prior art keywords
current signal
interference ratio
determining
controlling
power
Prior art date
Application number
PCT/DE2001/000239
Other languages
German (de)
French (fr)
Other versions
WO2001054289A2 (en
Inventor
Markus Doetsch
Peter Jung
Tideya Kella
Joerg Plechinger
Peter Schmidt
Michael Schneider
Original Assignee
Infineon Technologies Ag
Markus Doetsch
Peter Jung
Tideya Kella
Joerg Plechinger
Peter Schmidt
Michael Schneider
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 Infineon Technologies Ag, Markus Doetsch, Peter Jung, Tideya Kella, Joerg Plechinger, Peter Schmidt, Michael Schneider filed Critical Infineon Technologies Ag
Publication of WO2001054289A2 publication Critical patent/WO2001054289A2/en
Publication of WO2001054289A3 publication Critical patent/WO2001054289A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—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

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

Abstract

The invention relates to a method for determining the current signal-to-interference ratio and for controlling the power in mobile radio systems comprising code division multiplex. According to said method, sequences of known symbols are transmitted between unknown data symbols from a base station. The determination of the current signal-to-interference ratio takes place by comparing the known symbols with the corresponding received data which has been altered by interference and channel fading.
PCT/DE2001/000239 2000-01-20 2001-01-19 Method for determining the current signal-to-interference ratio and for controlling the power in mobile radio systems comprising code division multiplex WO2001054289A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10002327.4 2000-01-20
DE2000102327 DE10002327A1 (en) 2000-01-20 2000-01-20 Method for determining the current signal-to-noise ratio and for power control in mobile radio systems with code division multiplex

Publications (2)

Publication Number Publication Date
WO2001054289A2 WO2001054289A2 (en) 2001-07-26
WO2001054289A3 true WO2001054289A3 (en) 2002-03-14

Family

ID=7628152

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/000239 WO2001054289A2 (en) 2000-01-20 2001-01-19 Method for determining the current signal-to-interference ratio and for controlling the power in mobile radio systems comprising code division multiplex

Country Status (2)

Country Link
DE (1) DE10002327A1 (en)
WO (1) WO2001054289A2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6070086A (en) * 1996-09-20 2000-05-30 Nec Corporation Closed loop power transmitter power control unit for a CDMA cellular system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6483821B1 (en) * 1998-04-22 2002-11-19 Texas Instruments Incorporated CDMA mobile communications system and method with improved channel estimation and pilot symbol transmission

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6070086A (en) * 1996-09-20 2000-05-30 Nec Corporation Closed loop power transmitter power control unit for a CDMA cellular system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
USUDA M ET AL: "OPTIMIZING THE NUMBER OF DEDICATED PILOT SYMBOLS FOR FORWARD LINK IN W-CDMA SYSTEMS", TOKYO, JAPAN, MAY 15-18, 2000,NEW YORK, NY: IEEE,US, vol. CONF. 51, 15 May 2000 (2000-05-15), pages 2118 - 2122, XP000986979, ISBN: 0-7803-5719-1 *

Also Published As

Publication number Publication date
WO2001054289A2 (en) 2001-07-26
DE10002327A1 (en) 2001-08-09

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