HK1084523A1 - Unbiased sir estimation for use in power control methods - Google Patents

Unbiased sir estimation for use in power control methods

Info

Publication number
HK1084523A1
HK1084523A1 HK06104734.7A HK06104734A HK1084523A1 HK 1084523 A1 HK1084523 A1 HK 1084523A1 HK 06104734 A HK06104734 A HK 06104734A HK 1084523 A1 HK1084523 A1 HK 1084523A1
Authority
HK
Hong Kong
Prior art keywords
unbiased
power control
control methods
sir estimation
sir
Prior art date
Application number
HK06104734.7A
Inventor
Johansson Jan
Original Assignee
Huawei Tech Co Ltd
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 Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of HK1084523A1 publication Critical patent/HK1084523A1/en

Links

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
    • H04W52/247—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 sent by another terminal
    • 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
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • 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
    • H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
    • 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
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
    • 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
    • H04W52/06—TPC algorithms
    • H04W52/16—Deriving transmission power values from another channel

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
HK06104734.7A 2002-12-02 2006-04-20 Unbiased sir estimation for use in power control methods HK1084523A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2002/000860 WO2004051902A1 (en) 2002-12-02 2002-12-02 Unbiased sir estimation for use in power control methods

Publications (1)

Publication Number Publication Date
HK1084523A1 true HK1084523A1 (en) 2006-07-28

Family

ID=32400061

Family Applications (1)

Application Number Title Priority Date Filing Date
HK06104734.7A HK1084523A1 (en) 2002-12-02 2006-04-20 Unbiased sir estimation for use in power control methods

Country Status (4)

Country Link
CN (1) CN100481756C (en)
AU (1) AU2002368404A1 (en)
HK (1) HK1084523A1 (en)
WO (1) WO2004051902A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7200190B2 (en) * 2003-06-30 2007-04-03 Motorola, Inc. Unbiased signal to interference ratio in wireless communications devices and methods therefor
US7711033B2 (en) 2005-04-14 2010-05-04 Telefonaktiebolaget Lm Ericsson (Publ) SIR prediction method and apparatus
WO2008057018A1 (en) * 2006-11-07 2008-05-15 Telefonaktiebolaget Lm Ericsson (Publ) Modified sir values for fast power control
CN101132389B (en) * 2007-09-26 2010-06-02 中兴通讯股份有限公司 Compensation method for estimation of signal to interference ratio
EP2263325A1 (en) 2008-02-26 2010-12-22 InterDigital Technology Corporation Method and apparatus for estimating a signal-to-interference ratio
ATE499765T1 (en) * 2008-04-29 2011-03-15 Ericsson Telefon Ab L M ASSESSMENT OF THE SIGNAL-INTERFERENCE RATIO
US8862175B2 (en) 2009-12-29 2014-10-14 Telefonaktiebolaget L M Ericsson (Publ) Correction of estimated SIR used for transmit power control
WO2015096144A1 (en) * 2013-12-27 2015-07-02 华为技术有限公司 Method, system and method for estimating signal-to-noise ratio of universal mobile telecommunications system
US10411818B2 (en) 2015-11-30 2019-09-10 Telecom Italia S.P.A. Signal to interference and noise ratio estimation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2937681B2 (en) * 1993-03-18 1999-08-23 沖電気工業株式会社 Transmission power control method
AU3260195A (en) * 1995-08-31 1997-03-19 Nokia Telecommunications Oy Method and device for controlling transmission power of a radio transmitter in a cellular communication system
US6292519B1 (en) * 1998-03-11 2001-09-18 Telefonaktiebolaget Lm Ericsson (Publ) Correction of signal-to-interference ratio measurements
CN1150705C (en) * 2001-08-15 2004-05-19 信息产业部电信传输研究所 Adaptive W-CDMA coherent reception method and receiver for third generation mobile communication

Also Published As

Publication number Publication date
CN100481756C (en) 2009-04-22
CN1695332A (en) 2005-11-09
WO2004051902A1 (en) 2004-06-17
AU2002368404A1 (en) 2004-06-23

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Legal Events

Date Code Title Description
PE Patent expired

Effective date: 20221205