AU2001290667A1 - Apparatus for and method of adapting a radio receiver using control functions - Google Patents

Apparatus for and method of adapting a radio receiver using control functions

Info

Publication number
AU2001290667A1
AU2001290667A1 AU2001290667A AU9066701A AU2001290667A1 AU 2001290667 A1 AU2001290667 A1 AU 2001290667A1 AU 2001290667 A AU2001290667 A AU 2001290667A AU 9066701 A AU9066701 A AU 9066701A AU 2001290667 A1 AU2001290667 A1 AU 2001290667A1
Authority
AU
Australia
Prior art keywords
radio receiver
control functions
demodulation
adapting
joint
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2001290667A
Inventor
Gregory E Bottomley
Arslan Huseyin
Ali S. Khayrallah
Karl James Molnar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ericsson Inc
Original Assignee
Ericsson Inc
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 Inc filed Critical Ericsson Inc
Publication of AU2001290667A1 publication Critical patent/AU2001290667A1/en
Abandoned legal-status Critical Current

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
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • 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
    • 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
    • H04B1/7105—Joint detection techniques, e.g. linear detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03331—Arrangements for the joint estimation of multiple sequences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70707—Efficiency-related aspects
    • H04B2201/7071—Efficiency-related aspects with dynamic control of receiver resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03305—Joint sequence estimation and interference removal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Quality & Reliability (AREA)
  • Noise Elimination (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

An adaptive radio receiver utilizes control functions derived from received signals in an interference-limited environment to decide whether to implement conventional single-user demodulation or joint demodulation. The decision to implement joint or conventional demodulation is based upon the values of estimates derived for Doppler spread, carrier-to-interference plus noise, dispersiveness and the likelihood of the presence of a dominant interferer.
AU2001290667A 2000-09-12 2001-09-07 Apparatus for and method of adapting a radio receiver using control functions Abandoned AU2001290667A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/660,050 US6832080B1 (en) 2000-09-12 2000-09-12 Apparatus for and method of adapting a radio receiver using control functions
US09/660,050 2000-09-12
PCT/US2001/028051 WO2002023742A2 (en) 2000-09-12 2001-09-07 Apparatus for and method of adapting a radio receiver using control functions

Publications (1)

Publication Number Publication Date
AU2001290667A1 true AU2001290667A1 (en) 2002-03-26

Family

ID=24647915

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001290667A Abandoned AU2001290667A1 (en) 2000-09-12 2001-09-07 Apparatus for and method of adapting a radio receiver using control functions

Country Status (7)

Country Link
US (1) US6832080B1 (en)
EP (1) EP1319272B1 (en)
CN (1) CN1455998A (en)
AT (1) ATE467951T1 (en)
AU (1) AU2001290667A1 (en)
DE (1) DE60142117D1 (en)
WO (1) WO2002023742A2 (en)

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US6977974B1 (en) * 2000-11-20 2005-12-20 At&T Corp. De-modulation of MOK(M-ary orthogonal modulation)
US6842476B2 (en) * 2001-02-09 2005-01-11 Telefonaktiebolaget Lm Ericsson (Publ) Co-channel interference canceller
US7035359B2 (en) * 2001-10-11 2006-04-25 Telefonaktiebolaget L.M. Ericsson Methods and apparatus for demodulation of a signal in a signal slot subject to a discontinuous interference signal
US6714607B2 (en) 2001-12-20 2004-03-30 Sbc Technology Resources, Inc. Joint demodulation using a viterbi equalizer having an adaptive total number of states
CN100431274C (en) 2002-02-28 2008-11-05 艾利森电话股份有限公司 Signal receiver devices and methods
US20040063403A1 (en) * 2002-09-30 2004-04-01 Durrant Randolph L. Methods for identification of IEEE 802.11b radio signals
KR100651434B1 (en) * 2002-10-05 2006-11-28 삼성전자주식회사 Apparatus and method for removing interference signals in a receiver of a packet data communication system
US7646802B2 (en) 2003-06-02 2010-01-12 Qualcomm Incorporated Communication receiver with hybrid equalizer
CN100373801C (en) * 2003-06-05 2008-03-05 华为技术有限公司 Estimation method of Doppler limiting frequency
US9585023B2 (en) 2003-10-30 2017-02-28 Qualcomm Incorporated Layered reuse for a wireless communication system
US8526963B2 (en) * 2003-10-30 2013-09-03 Qualcomm Incorporated Restrictive reuse for a wireless communication system
US7599702B2 (en) 2003-12-23 2009-10-06 Telefonaktiebolaget Lm Ericsson (Publ) SIR estimates for non-scheduled mobile terminals
US8059589B2 (en) 2004-06-09 2011-11-15 Qualcomm Incorporated Dynamic restrictive reuse scheduler
US7680475B2 (en) 2004-06-09 2010-03-16 Qualcomm Incorporated Dynamic ASBR scheduler
US8032145B2 (en) 2004-07-23 2011-10-04 Qualcomm Incorporated Restrictive reuse set management algorithm for equal grade of service on FL transmission
US7548752B2 (en) * 2004-12-22 2009-06-16 Qualcomm Incorporated Feedback to support restrictive reuse
WO2006072864A1 (en) * 2005-01-06 2006-07-13 Koninklijke Philips Electronics N.V. A method and apparatus for estimating doppler spread
US8279985B2 (en) * 2005-02-22 2012-10-02 Adaptix, Inc. Intelligent demodulation systems and methods in an OFDMA multicell network
US7711033B2 (en) * 2005-04-14 2010-05-04 Telefonaktiebolaget Lm Ericsson (Publ) SIR prediction method and apparatus
US7929918B2 (en) * 2007-08-13 2011-04-19 Samsung Electronics Co., Ltd. System and method for training the same type of directional antennas that adapts the training sequence length to the number of antennas
GB0721424D0 (en) 2007-10-31 2007-12-12 Icera Inc A radio receiver in a wireless communications system
GB0721426D0 (en) 2007-10-31 2007-12-12 Icera Inc A radio receiver in a wireless communications system
US9191059B2 (en) 2007-10-31 2015-11-17 Icera Inc. Processing digital samples in a wireless receiver
US8577304B2 (en) 2007-10-31 2013-11-05 Icera, Inc. Synchronous CDMA communication system
GB201001482D0 (en) 2010-01-29 2010-03-17 Icera Inc A cellular communications system
GB201001389D0 (en) 2010-01-28 2010-03-17 Icera Inc A radio receiver in a wireless communication system
GB0721425D0 (en) 2007-10-31 2007-12-12 Icera Inc Processing digital sampels in a wireless receiver
GB0721423D0 (en) 2007-10-31 2007-12-12 Icera Inc A synchronous cdma communication system
US8417191B2 (en) * 2008-03-17 2013-04-09 Samsung Electronics Co., Ltd. Method and system for beamforming communication in high throughput wireless communication systems
US8478204B2 (en) 2008-07-14 2013-07-02 Samsung Electronics Co., Ltd. System and method for antenna training of beamforming vectors having reuse of directional information
US8160503B2 (en) 2009-02-27 2012-04-17 Research In Motion Limited Method and system for characterizing a radio channel of a wireless network using variability of synchronization
EP2224606B1 (en) * 2009-02-27 2012-10-03 Research In Motion Limited A method and system for characterizing a radio channel of a wireless network using variability of synchronization
GB0910850D0 (en) * 2009-06-23 2009-08-05 Icera Inc Processing signals in a wireless network
US8064531B2 (en) 2009-11-04 2011-11-22 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for interferer parameter estimation using multiple receiver arbitration
US8983389B2 (en) * 2010-01-20 2015-03-17 Qualcomm Incorporated Method and apparatus for switching between single user detection and multi user detection
GB201016361D0 (en) * 2010-09-29 2010-11-10 Motorola Inc Adaptive off-channel detector for receivers
EP2671324B1 (en) 2011-02-01 2015-07-01 Telefonaktiebolaget L M Ericsson (PUBL) Configuration of wireless receiver
US9537644B2 (en) * 2012-02-23 2017-01-03 Lattice Semiconductor Corporation Transmitting multiple differential signals over a reduced number of physical channels
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Also Published As

Publication number Publication date
WO2002023742A2 (en) 2002-03-21
CN1455998A (en) 2003-11-12
ATE467951T1 (en) 2010-05-15
EP1319272B1 (en) 2010-05-12
EP1319272A2 (en) 2003-06-18
WO2002023742A3 (en) 2002-05-30
WO2002023742A9 (en) 2003-04-03
US6832080B1 (en) 2004-12-14
DE60142117D1 (en) 2010-06-24

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