CA2608872A1 - Joint space-time optimum filters (jstof) for interference cancellation - Google Patents

Joint space-time optimum filters (jstof) for interference cancellation Download PDF

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Publication number
CA2608872A1
CA2608872A1 CA002608872A CA2608872A CA2608872A1 CA 2608872 A1 CA2608872 A1 CA 2608872A1 CA 002608872 A CA002608872 A CA 002608872A CA 2608872 A CA2608872 A CA 2608872A CA 2608872 A1 CA2608872 A1 CA 2608872A1
Authority
CA
Canada
Prior art keywords
channel
space
jstof
interference cancellation
joint space
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.)
Granted
Application number
CA002608872A
Other languages
French (fr)
Other versions
CA2608872C (en
Inventor
Huan Wu
Sean Simmons
Zoltan Kemenczy
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.)
BlackBerry Ltd
Original Assignee
Research In Motion Limited
Huan Wu
Sean Simmons
Zoltan Kemenczy
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 CA002515996A external-priority patent/CA2515996A1/en
Application filed by Research In Motion Limited, Huan Wu, Sean Simmons, Zoltan Kemenczy filed Critical Research In Motion Limited
Priority to CA002608872A priority Critical patent/CA2608872C/en
Publication of CA2608872A1 publication Critical patent/CA2608872A1/en
Application granted granted Critical
Publication of CA2608872C publication Critical patent/CA2608872C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • 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
    • 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
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03286—Arrangements for operating in conjunction with other apparatus with channel-decoding circuitry
    • 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
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03292—Arrangements for operating in conjunction with other apparatus with channel estimation circuitry
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
    • H04L27/2017—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation

Landscapes

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

Abstract

A filter for reducing co-channel interference within a communications receiver may include a multi-channel, space-time filter circuit that filters n signal parts that have been split from a communications signal by jointly estimating space-time filter weights and multi-channel impulse responses (CIRs). The filter may further include a multi-channel, matched filter circuit that receives multi-channel signals from the multi-channel, space-time filter circuit and has a filter response that is provided by a channel impulse response estimation from the space-time filter circuit.
CA002608872A 2005-05-25 2006-05-25 Joint space-time optimum filters (jstof) for interference cancellation Active CA2608872C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002608872A CA2608872C (en) 2005-05-25 2006-05-25 Joint space-time optimum filters (jstof) for interference cancellation

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US68431205P 2005-05-25 2005-05-25
US60/684,312 2005-05-25
CA2,515,996 2005-08-15
CA002515996A CA2515996A1 (en) 2005-08-15 2005-08-15 Joint space-time optimum filters (jstof) for interference cancellation
PCT/CA2006/000857 WO2006125316A1 (en) 2005-05-25 2006-05-25 Joint space-time optimum filters (jstof) for interference cancellation
CA002608872A CA2608872C (en) 2005-05-25 2006-05-25 Joint space-time optimum filters (jstof) for interference cancellation

Publications (2)

Publication Number Publication Date
CA2608872A1 true CA2608872A1 (en) 2006-11-30
CA2608872C CA2608872C (en) 2009-08-11

Family

ID=37451608

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002608872A Active CA2608872C (en) 2005-05-25 2006-05-25 Joint space-time optimum filters (jstof) for interference cancellation

Country Status (2)

Country Link
CA (1) CA2608872C (en)
WO (1) WO2006125316A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1953925B1 (en) * 2007-02-05 2009-11-04 Research In Motion Limited Multi-mode receiver with adaptive mode selection
US7826574B2 (en) 2007-02-05 2010-11-02 Research In Motion Limited Multi-mode receiver with adaptive mode selection

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6314147B1 (en) * 1997-11-04 2001-11-06 The Board Of Trustees Of The Leland Stanford Junior University Two-stage CCI/ISI reduction with space-time processing in TDMA cellular networks
KR20030044625A (en) * 2001-11-30 2003-06-09 주식회사 뉴로스 Power-Driven Ornithopter Piloted by Remote Controller
EP1540763B1 (en) * 2002-08-21 2007-04-18 Zyray Wireless, Inc. Antenna array including virtual antenna elements and method
US7250905B2 (en) * 2003-04-09 2007-07-31 Mano Dorsey Judd Virtual antenna technology (VAT) and applications

Also Published As

Publication number Publication date
WO2006125316A1 (en) 2006-11-30
CA2608872C (en) 2009-08-11

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