WO2004045085A3 - Method and apparatus for determining signal-to-interference ratio with reduced bias effect - Google Patents

Method and apparatus for determining signal-to-interference ratio with reduced bias effect Download PDF

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Publication number
WO2004045085A3
WO2004045085A3 PCT/US2003/035320 US0335320W WO2004045085A3 WO 2004045085 A3 WO2004045085 A3 WO 2004045085A3 US 0335320 W US0335320 W US 0335320W WO 2004045085 A3 WO2004045085 A3 WO 2004045085A3
Authority
WO
WIPO (PCT)
Prior art keywords
sir
output
estimation
interference ratio
power
Prior art date
Application number
PCT/US2003/035320
Other languages
French (fr)
Other versions
WO2004045085A2 (en
Inventor
Sung-Hyuk Shin
Ariela Zeira
Original Assignee
Interdigital Tech Corp
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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Priority to JP2004551783A priority Critical patent/JP4068097B2/en
Priority to CA002505035A priority patent/CA2505035A1/en
Priority to EP03783174A priority patent/EP1563623A4/en
Priority to AU2003291244A priority patent/AU2003291244A1/en
Publication of WO2004045085A2 publication Critical patent/WO2004045085A2/en
Publication of WO2004045085A3 publication Critical patent/WO2004045085A3/en
Priority to NO20052513A priority patent/NO20052513L/en

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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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0062—Avoidance of ingress interference, e.g. ham radio channels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Noise Elimination (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A method and apparatus for performing signal-to-interference ratio (SIR) estimation in wireless communications, using a demodulator (505) output, such as a Rake output or a multi-user detection (MUD) receiver output. The demodulator (505) output is fed into a SIR estimator (400) to perform the SIR estimation based on estimated average signal power (610) and estimated average effective interference power (615). The estimated average signal power (615) is based on a minimum value function used for determining a minimum value between a median based average power value and a mean based average power value. The SIR estimator (400) reduces bias effects on SIR estimation, and is applicable to BPSK and QPSK modulation schemes, as well as higher order modulation schemes such as 8-PSK and 16-QAM. A correction term is used as a function of the mean and median values to further mitigate the bias effect.
PCT/US2003/035320 2002-11-08 2003-11-05 Method and apparatus for determining signal-to-interference ratio with reduced bias effect WO2004045085A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2004551783A JP4068097B2 (en) 2002-11-08 2003-11-05 Method and apparatus for determining SIR with reduced effects of bias
CA002505035A CA2505035A1 (en) 2002-11-08 2003-11-05 Method and apparatus for determining signal-to-interference ratio with reduced bias effect
EP03783174A EP1563623A4 (en) 2002-11-08 2003-11-05 Method and apparatus for determining signal-to-interference ratio with reduced bias effect
AU2003291244A AU2003291244A1 (en) 2002-11-08 2003-11-05 Method and apparatus for determining signal-to-interference ratio with reduced bias effect
NO20052513A NO20052513L (en) 2002-11-08 2005-05-25 Method and apparatus for determining signal-to-interference conditions with reduced bias power

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42536702P 2002-11-08 2002-11-08
US60/425,367 2002-11-08

Publications (2)

Publication Number Publication Date
WO2004045085A2 WO2004045085A2 (en) 2004-05-27
WO2004045085A3 true WO2004045085A3 (en) 2005-03-10

Family

ID=32312978

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/035320 WO2004045085A2 (en) 2002-11-08 2003-11-05 Method and apparatus for determining signal-to-interference ratio with reduced bias effect

Country Status (11)

Country Link
US (3) US6957175B2 (en)
EP (1) EP1563623A4 (en)
JP (1) JP4068097B2 (en)
KR (3) KR101019441B1 (en)
CN (1) CN1711709A (en)
AR (1) AR042003A1 (en)
AU (1) AU2003291244A1 (en)
CA (1) CA2505035A1 (en)
NO (1) NO20052513L (en)
TW (3) TW200518507A (en)
WO (1) WO2004045085A2 (en)

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FI115578B (en) * 2002-03-20 2005-05-31 Nokia Corp Telecommunication systems and receivers
US20040110508A1 (en) * 2002-09-20 2004-06-10 Jacobus Haartsen Methods and electronic devices for wireless ad-hoc network communications using receiver determined channels and transmitted reference signals
US6957175B2 (en) * 2002-11-08 2005-10-18 Interdigital Technology Corporation Method and apparatus for determining signal-to-interference ratio with reduced bias effect
JP3898115B2 (en) * 2002-11-12 2007-03-28 株式会社エヌ・ティ・ティ・ドコモ Receiving device, demodulator and communication method
US7738848B2 (en) 2003-01-14 2010-06-15 Interdigital Technology Corporation Received signal to noise indicator
US7072680B2 (en) * 2003-05-28 2006-07-04 Accton Technology Corporation Power control apparatus for achieving respective desired signal quality levels in wireless communication systems and method
US7251497B2 (en) * 2003-12-31 2007-07-31 Infineon Technologies Ag Signal-to-interference ratio estimation for CDMA
JP2008507230A (en) * 2004-07-19 2008-03-06 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ SIR estimation technology
KR100867973B1 (en) * 2004-08-02 2008-11-10 노키아 코포레이션 Method, apparatus and computer readable medium to estimate signal to interference plus noise ratio SINR in a multiple antenna receiver
US7532664B2 (en) * 2004-08-02 2009-05-12 Nokia Corporation Method and apparatus to estimate signal to interference plus noise ratio (SINR) in a multiple antenna receiver
US7587211B2 (en) * 2005-12-21 2009-09-08 Broadcom Corporation Method and system for adaptive multi rate (AMR) and measurements downlink adaptation
WO2006066445A1 (en) * 2004-12-21 2006-06-29 Zte Corporation A encoding modulation and demodulation system and its method of transmitting and receiving signal
US7421045B2 (en) * 2005-03-18 2008-09-02 Interdigital Technology Corporation Method and apparatus for computing SIR of time varying signals in a wireless communication system
US7711033B2 (en) 2005-04-14 2010-05-04 Telefonaktiebolaget Lm Ericsson (Publ) SIR prediction method and apparatus
EP2036240A2 (en) * 2006-05-17 2009-03-18 Nxp B.V. Method and apparatus for estimating noise varience
WO2008003815A1 (en) * 2006-07-07 2008-01-10 Nokia Corporation Improved radio resource allocation mechanism
US7929630B2 (en) * 2006-09-11 2011-04-19 Symbol Technologies, Inc. Adaptive RFID receiver for QAM signals
CN101986744B (en) * 2009-07-29 2013-03-20 中兴通讯股份有限公司 Signal detection method and device in long term evolution (LTE) system
US8442169B2 (en) * 2010-02-19 2013-05-14 Telefonaktiebolaget L M Ericsson (Publ) Blind SIR estimation using soft bit values
US8730827B2 (en) * 2010-03-05 2014-05-20 Intel Corporation Estimating quality of a signal in mobile wireless communication systems
CN102186196B (en) * 2011-05-17 2013-09-04 大唐移动通信设备有限公司 Method and device for confirming signal-to-noise ratio of signals in physical uplink shared channel
US9793945B2 (en) 2014-06-03 2017-10-17 Telefonaktiebolaget Lm Ericsson (Publ) Determination of channel condition indication
EP3301839B1 (en) * 2016-09-30 2019-09-04 Intel IP Corporation Method and device for providing cqi reports
US9960867B1 (en) * 2017-04-18 2018-05-01 Topcon Positioning Systems, Inc. Method and apparatus for estimating the current signal-to-thermal noise ratio and signal-to-pulse noise ratio

Citations (3)

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US6028894A (en) * 1996-12-27 2000-02-22 Fujitsu Limited SIR or SNR measurement apparatus
US6032026A (en) * 1997-03-05 2000-02-29 Fujitsu Limited Signal to interference power ratio measuring apparatus and signal to interference power ratio measuring method as well as transmission power controlling method under CDMA communication system
US6292519B1 (en) * 1998-03-11 2001-09-18 Telefonaktiebolaget Lm Ericsson (Publ) Correction of signal-to-interference ratio measurements

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JP2877248B2 (en) * 1994-05-20 1999-03-31 エヌ・ティ・ティ移動通信網株式会社 Transmission power control method and apparatus in CDMA system
DE69736695T8 (en) * 1996-04-12 2007-10-25 Ntt Docomo, Inc. METHOD AND INSTRUMENT FOR MEASURING THE SIGNAL INTERFERENCE RATIO AND TRANSMITTER
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US6028894A (en) * 1996-12-27 2000-02-22 Fujitsu Limited SIR or SNR measurement apparatus
US6032026A (en) * 1997-03-05 2000-02-29 Fujitsu Limited Signal to interference power ratio measuring apparatus and signal to interference power ratio measuring method as well as transmission power controlling method under CDMA communication system
US6292519B1 (en) * 1998-03-11 2001-09-18 Telefonaktiebolaget Lm Ericsson (Publ) Correction of signal-to-interference ratio measurements

Also Published As

Publication number Publication date
AR042003A1 (en) 2005-06-08
KR101019441B1 (en) 2011-03-07
AU2003291244A8 (en) 2004-06-03
EP1563623A2 (en) 2005-08-17
TWI353744B (en) 2011-12-01
US20060206290A1 (en) 2006-09-14
EP1563623A4 (en) 2011-10-12
TW200518507A (en) 2005-06-01
CN1711709A (en) 2005-12-21
KR20050072800A (en) 2005-07-12
TW200737809A (en) 2007-10-01
WO2004045085A2 (en) 2004-05-27
US7254496B2 (en) 2007-08-07
KR100794979B1 (en) 2008-01-16
US7069190B2 (en) 2006-06-27
CA2505035A1 (en) 2004-05-27
US6957175B2 (en) 2005-10-18
TW200419941A (en) 2004-10-01
KR20090005152A (en) 2009-01-12
JP2006506018A (en) 2006-02-16
KR20050096197A (en) 2005-10-05
NO20052513D0 (en) 2005-05-25
TWI236235B (en) 2005-07-11
AU2003291244A1 (en) 2004-06-03
JP4068097B2 (en) 2008-03-26
NO20052513L (en) 2005-05-25
US20050187728A1 (en) 2005-08-25
US20040093178A1 (en) 2004-05-13

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