WO2007100442A3 - Predicting future changes to strenths of paths in mimo systems - Google Patents

Predicting future changes to strenths of paths in mimo systems Download PDF

Info

Publication number
WO2007100442A3
WO2007100442A3 PCT/US2007/002889 US2007002889W WO2007100442A3 WO 2007100442 A3 WO2007100442 A3 WO 2007100442A3 US 2007002889 W US2007002889 W US 2007002889W WO 2007100442 A3 WO2007100442 A3 WO 2007100442A3
Authority
WO
WIPO (PCT)
Prior art keywords
history
wireless node
strenths
paths
predicting future
Prior art date
Application number
PCT/US2007/002889
Other languages
French (fr)
Other versions
WO2007100442A2 (en
Inventor
Costa Behram Da
Original Assignee
Sony Electronics Inc
Costa Behram Da
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 Sony Electronics Inc, Costa Behram Da filed Critical Sony Electronics Inc
Priority to EP07749818A priority Critical patent/EP1989631A4/en
Priority to CN2007800065521A priority patent/CN101390069B/en
Priority to CA2642118A priority patent/CA2642118C/en
Priority to JP2008556333A priority patent/JP2009527986A/en
Publication of WO2007100442A2 publication Critical patent/WO2007100442A2/en
Publication of WO2007100442A3 publication Critical patent/WO2007100442A3/en
Priority to KR1020087023187A priority patent/KR101344166B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/373—Predicting channel quality or other radio frequency [RF] parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/26—Monitoring; Testing of receivers using historical data, averaging values or statistics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems

Abstract

According to one embodiment of the invention, a system and a method for maintaining a first history of strength of a first transmission path between a first wireless node and a second wireless node in a multiple input multiple output (MIMO) communication system, maintaining a second history of strength of a second transmission path between a third wireless node and the second wireless node in the MIMO communication system, performing a spatiotemporal correlation between the first history and the second history to determine if any changes in the strength of the first transmission path is observed, and predicting future changes to strength of the second transmission path between the third wireless node and the second wireless node based on the performed special correlation between the first history and the second history.
PCT/US2007/002889 2006-02-24 2007-02-01 Predicting future changes to strenths of paths in mimo systems WO2007100442A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP07749818A EP1989631A4 (en) 2006-02-24 2007-02-01 Predicting future changes to strenths of paths in mimo systems
CN2007800065521A CN101390069B (en) 2006-02-24 2007-02-01 Predicting future changes to strengths of paths in mimo systems
CA2642118A CA2642118C (en) 2006-02-24 2007-02-01 Predicting future changes to strengths of paths in mimo systems
JP2008556333A JP2009527986A (en) 2006-02-24 2007-02-01 Future change prediction for path strength in MIMO system
KR1020087023187A KR101344166B1 (en) 2006-02-24 2008-09-23 Predicting future changes to strengths of paths in mimo systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/361,587 US7907919B2 (en) 2006-02-24 2006-02-24 Predicting future changes to strengths of paths in MIMO systems
US11/361,587 2006-02-24

Publications (2)

Publication Number Publication Date
WO2007100442A2 WO2007100442A2 (en) 2007-09-07
WO2007100442A3 true WO2007100442A3 (en) 2007-12-13

Family

ID=38444627

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/002889 WO2007100442A2 (en) 2006-02-24 2007-02-01 Predicting future changes to strenths of paths in mimo systems

Country Status (7)

Country Link
US (1) US7907919B2 (en)
EP (1) EP1989631A4 (en)
JP (1) JP2009527986A (en)
KR (1) KR101344166B1 (en)
CN (1) CN101390069B (en)
CA (1) CA2642118C (en)
WO (1) WO2007100442A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8045599B2 (en) * 2005-02-17 2011-10-25 Sony Corporation Selection of training sequences for multiple-in multiple-out transmissions
EP2530866B1 (en) * 2009-03-27 2017-07-26 Sony Corporation Division of bit streams to produce spatial paths for multicarrier transmission
JP5326959B2 (en) * 2009-09-16 2013-10-30 富士通株式会社 Communication apparatus and communication method
WO2016190961A2 (en) * 2015-04-03 2016-12-01 President And Fellows Of Harvard College Techniques for mitigating adverse effects of wireless link outages
JP7200641B2 (en) * 2018-12-07 2023-01-10 日本電信電話株式会社 COMMUNICATION CONTROL METHOD, COMMUNICATION CONTROL DEVICE, AND COMMUNICATION CONTROL PROGRAM

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5831874A (en) * 1996-05-31 1998-11-03 Motorola, Inc. Method and system for calculating a transmitted signal characteristic in an environmental model
US5946631A (en) * 1996-10-17 1999-08-31 Philips Electronics North America Corporation Real-time CSMA method having the capability to adaptively vary cell sizes and a wireless network for implementing the same
US6240291B1 (en) * 1999-09-09 2001-05-29 The Board Of Trustees Of The Leland Stamford Junior University Method for handoff in wireless communication systems using pattern recognition
US20040204918A1 (en) * 2003-03-31 2004-10-14 Dacosta Behram M. Link strength predictions based on spatiotemporal correlation of features in proximal links
US20050149835A1 (en) * 2003-12-17 2005-07-07 Dacosta Behram Mario Outage predictor for communication link

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5465398A (en) 1993-10-07 1995-11-07 Metricom, Inc. Automatic power level control of a packet communication link
GB0125178D0 (en) * 2001-10-19 2001-12-12 Koninkl Philips Electronics Nv Method of operating a wireless communication system
GB2393618B (en) * 2002-09-26 2004-12-15 Toshiba Res Europ Ltd Transmission signals methods and apparatus
US20040259555A1 (en) * 2003-04-23 2004-12-23 Rappaport Theodore S. System and method for predicting network performance and position location using multiple table lookups
US6917821B2 (en) * 2003-09-23 2005-07-12 Qualcomm, Incorporated Successive interference cancellation receiver processing with selection diversity
KR100912226B1 (en) * 2008-06-27 2009-08-14 삼성전자주식회사 Codebook design method for multiple input multiple output system and method for using the codebook

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5831874A (en) * 1996-05-31 1998-11-03 Motorola, Inc. Method and system for calculating a transmitted signal characteristic in an environmental model
US5946631A (en) * 1996-10-17 1999-08-31 Philips Electronics North America Corporation Real-time CSMA method having the capability to adaptively vary cell sizes and a wireless network for implementing the same
US6240291B1 (en) * 1999-09-09 2001-05-29 The Board Of Trustees Of The Leland Stamford Junior University Method for handoff in wireless communication systems using pattern recognition
US20040204918A1 (en) * 2003-03-31 2004-10-14 Dacosta Behram M. Link strength predictions based on spatiotemporal correlation of features in proximal links
US20050149835A1 (en) * 2003-12-17 2005-07-07 Dacosta Behram Mario Outage predictor for communication link

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1989631A4 *

Also Published As

Publication number Publication date
CA2642118C (en) 2015-03-24
EP1989631A2 (en) 2008-11-12
CN101390069B (en) 2012-05-30
US7907919B2 (en) 2011-03-15
CN101390069A (en) 2009-03-18
CA2642118A1 (en) 2007-09-07
US20070202817A1 (en) 2007-08-30
EP1989631A4 (en) 2010-01-06
JP2009527986A (en) 2009-07-30
KR101344166B1 (en) 2013-12-20
KR20080098542A (en) 2008-11-10
WO2007100442A2 (en) 2007-09-07

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