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WO2013048326A3 - Impairment covariance and combining weight updates during iterative turbo interference cancellation reception - Google Patents

Impairment covariance and combining weight updates during iterative turbo interference cancellation reception Download PDF

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Publication number
WO2013048326A3
WO2013048326A3 PCT/SE2012/051032 SE2012051032W WO2013048326A3 WO 2013048326 A3 WO2013048326 A3 WO 2013048326A3 SE 2012051032 W SE2012051032 W SE 2012051032W WO 2013048326 A3 WO2013048326 A3 WO 2013048326A3
Authority
WO
WIPO (PCT)
Prior art keywords
interference cancellation
impairment covariance
combining weight
weight updates
updates during
Prior art date
Application number
PCT/SE2012/051032
Other languages
French (fr)
Other versions
WO2013048326A2 (en
Inventor
Yi-Pin Eric Yi-Pin Eric WANG
Stephen Grant
Ning He
Niklas Johansson
Jung-Fu Cheng
Cagatay KONUSKAN
Gregory Bottomley
Original Assignee
Telefonaktiebolaget L M Ericsson (Publ)
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 US13/333,478 external-priority patent/US8761323B2/en
Priority claimed from US13/333,703 external-priority patent/US8787426B2/en
Application filed by Telefonaktiebolaget L M Ericsson (Publ) filed Critical Telefonaktiebolaget L M Ericsson (Publ)
Priority to EP12835544.3A priority Critical patent/EP2761766A4/en
Publication of WO2013048326A2 publication Critical patent/WO2013048326A2/en
Publication of WO2013048326A3 publication Critical patent/WO2013048326A3/en

Links

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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7107—Subtractive interference cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • 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
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7107—Subtractive interference cancellation
    • H04B1/71075—Parallel interference cancellation
    • 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
    • H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)

Abstract

In a receive node (230) of a wireless network (100), an iterative multi-user multi-stage interference cancellation receiver (400, 800, 1100) is used. After each stage of interference cancellation, interference characteristics change. An adaptive strategy is used in which after each stage of interference cancellation, impairment covariance is parametrically updated and combining weights of the receiver (400, 800, 1100) are adapted to reflect the updated impairment covariance.
PCT/SE2012/051032 2011-09-28 2012-09-27 Impairment covariance and combining weight updates during iterative turbo interference cancellation reception WO2013048326A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12835544.3A EP2761766A4 (en) 2011-09-28 2012-09-27 Impairment covariance and combining weight updates during iterative turbo interference cancellation reception

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US201161540144P 2011-09-28 2011-09-28
US61/540,144 2011-09-28
US13/333,703 2011-12-21
US13/333,478 US8761323B2 (en) 2011-09-28 2011-12-21 Impairment covariance and combining weight updates during iterative turbo interference cancellation reception
US13/333,703 US8787426B2 (en) 2011-09-28 2011-12-21 Finger placement in multi-stage interference cancellation
US13/333,478 2011-12-21

Publications (2)

Publication Number Publication Date
WO2013048326A2 WO2013048326A2 (en) 2013-04-04
WO2013048326A3 true WO2013048326A3 (en) 2013-07-18

Family

ID=51019565

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2012/051032 WO2013048326A2 (en) 2011-09-28 2012-09-27 Impairment covariance and combining weight updates during iterative turbo interference cancellation reception

Country Status (2)

Country Link
EP (1) EP2761766A4 (en)
WO (1) WO2013048326A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1259001A1 (en) * 1999-12-07 2002-11-20 Sharp Kabushiki Kaisha Concatenation convolutional code decoder
US6667964B1 (en) * 1998-09-04 2003-12-23 Fujitsu Limited Propagation path-estimation method for an interference canceler and interference elimination apparatus
US20050195889A1 (en) * 2004-03-05 2005-09-08 Grant Stephen J. Successive interference cancellation in a generalized RAKE receiver architecture
US20090257477A1 (en) * 2008-04-15 2009-10-15 Khayrallah Ali S Method and Apparatus for Successive Interference Subtraction with Covariance Root Processing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6667964B1 (en) * 1998-09-04 2003-12-23 Fujitsu Limited Propagation path-estimation method for an interference canceler and interference elimination apparatus
EP1259001A1 (en) * 1999-12-07 2002-11-20 Sharp Kabushiki Kaisha Concatenation convolutional code decoder
US20050195889A1 (en) * 2004-03-05 2005-09-08 Grant Stephen J. Successive interference cancellation in a generalized RAKE receiver architecture
US20090257477A1 (en) * 2008-04-15 2009-10-15 Khayrallah Ali S Method and Apparatus for Successive Interference Subtraction with Covariance Root Processing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ORANGE ET AL.: "Performance prediction of turbo-SIC receivers for system- level simulations", 3GPP DRAFT; R1-090919, 2009-02-03, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), 9 February 2009 (2009-02-09), ATHENS, GREECE, XP050318760 *

Also Published As

Publication number Publication date
EP2761766A4 (en) 2015-07-15
WO2013048326A2 (en) 2013-04-04
EP2761766A2 (en) 2014-08-06

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