AU2001241437A1 - Pilot symbol assisted modulation and demodulation in wireless communication systems - Google Patents

Pilot symbol assisted modulation and demodulation in wireless communication systems

Info

Publication number
AU2001241437A1
AU2001241437A1 AU2001241437A AU4143701A AU2001241437A1 AU 2001241437 A1 AU2001241437 A1 AU 2001241437A1 AU 2001241437 A AU2001241437 A AU 2001241437A AU 4143701 A AU4143701 A AU 4143701A AU 2001241437 A1 AU2001241437 A1 AU 2001241437A1
Authority
AU
Australia
Prior art keywords
demodulation
wireless communication
communication systems
pilot symbol
assisted modulation
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
AU2001241437A
Inventor
John E. Hoffmann
George Rodney Nelson Jr.
James A. Proctor Jr.
Antoine J. Rouphael
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.)
Tantivy Communications Inc
Original Assignee
Tantivy Communications 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 Tantivy Communications Inc filed Critical Tantivy Communications Inc
Publication of AU2001241437A1 publication Critical patent/AU2001241437A1/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
    • H04B1/76—Pilot transmitters or receivers for control of transmission or for equalising
    • 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
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • 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
    • H04L27/22—Demodulator circuits; Receiver circuits
AU2001241437A 2000-02-03 2001-02-01 Pilot symbol assisted modulation and demodulation in wireless communication systems Abandoned AU2001241437A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/497,440 2000-02-03
US09/497,440 US6301291B1 (en) 2000-02-03 2000-02-03 Pilot symbol assisted modulation and demodulation in wireless communication systems
PCT/US2001/003302 WO2001058027A2 (en) 2000-02-03 2001-02-01 Pilot symbol assisted modulation and demodulation in wireless communication systems

Publications (1)

Publication Number Publication Date
AU2001241437A1 true AU2001241437A1 (en) 2001-08-14

Family

ID=23976880

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001241437A Abandoned AU2001241437A1 (en) 2000-02-03 2001-02-01 Pilot symbol assisted modulation and demodulation in wireless communication systems

Country Status (5)

Country Link
US (1) US6301291B1 (en)
JP (1) JP2003522455A (en)
KR (6) KR100782947B1 (en)
AU (1) AU2001241437A1 (en)
WO (1) WO2001058027A2 (en)

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US7079523B2 (en) * 2000-02-07 2006-07-18 Ipr Licensing, Inc. Maintenance link using active/standby request channels
US6222832B1 (en) 1998-06-01 2001-04-24 Tantivy Communications, Inc. Fast Acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system
US9525923B2 (en) 1997-12-17 2016-12-20 Intel Corporation Multi-detection of heartbeat to reduce error probability
US7936728B2 (en) 1997-12-17 2011-05-03 Tantivy Communications, Inc. System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
US7773566B2 (en) 1998-06-01 2010-08-10 Tantivy Communications, Inc. System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
US8134980B2 (en) 1998-06-01 2012-03-13 Ipr Licensing, Inc. Transmittal of heartbeat signal at a lower level than heartbeat request
WO2001058044A2 (en) 2000-02-07 2001-08-09 Tantivy Communications, Inc. Minimal maintenance link to support synchronization
US6801564B2 (en) * 2000-02-23 2004-10-05 Ipr Licensing, Inc. Reverse link correlation filter in wireless communication systems
US6973523B1 (en) * 2000-03-27 2005-12-06 Interdigital Technology Corp. Code division multiple access modem interface
US7254116B2 (en) * 2000-04-07 2007-08-07 Broadcom Corporation Method and apparatus for transceiver noise reduction in a frame-based communications network
US7272192B2 (en) * 2000-04-14 2007-09-18 Board Of Trustees Of The Leland Stanford Junior University Time-reversal block transmit diversity system for channels with intersymbol interference and method
IT1320534B1 (en) * 2000-07-11 2003-12-10 Cselt Centro Studi Lab Telecom TRANSMISSION PROCEDURE FOR COMMUNICATION NETWORKS, RELATED SYSTEM AND TERMINAL.
US8155096B1 (en) 2000-12-01 2012-04-10 Ipr Licensing Inc. Antenna control system and method
US6954448B2 (en) 2001-02-01 2005-10-11 Ipr Licensing, Inc. Alternate channel for carrying selected message types
US7551663B1 (en) 2001-02-01 2009-06-23 Ipr Licensing, Inc. Use of correlation combination to achieve channel detection
US7218623B1 (en) 2001-05-04 2007-05-15 Ipr Licensing, Inc. Coded reverse link messages for closed-loop power control of forward link control messages
ES2614202T3 (en) 2001-06-13 2017-05-30 Intel Corporation Method and apparatus for transmitting a heartbeat signal at a lower level than the request for heartbeat
US7460605B2 (en) * 2001-11-15 2008-12-02 Lawrence Livermore National Security, Llc Time reversal communication system
US7454209B2 (en) * 2002-09-05 2008-11-18 Qualcomm Incorporated Adapting operation of a communication filter based on mobile unit velocity
US7463690B2 (en) 2002-11-06 2008-12-09 Lawrence Livermore National Security, Llc Multi-channel time-reversal receivers for multi and 1-bit implementations
US7209525B2 (en) * 2002-11-18 2007-04-24 Agere Systems Inc. Clock and data recovery with extended integration cycles
CA2583255A1 (en) 2004-10-12 2006-04-20 The Governors Of The University Of Alberta Pilot symbol assisted modulation signal processing systems and methods
US11025475B2 (en) 2012-12-05 2021-06-01 Origin Wireless, Inc. Method, apparatus, server, and systems of time-reversal technology
US10129862B1 (en) 2016-02-16 2018-11-13 Origin Wireless, Inc. Methods, devices, apparatus, and systems for medium access control in wireless communication systems utilizing spatial focusing effect
US9407306B2 (en) 2014-04-25 2016-08-02 Origin Wireless, Inc. Quadrature amplitude modulation for time-reversal systems
US10609711B1 (en) 2015-03-05 2020-03-31 Origin Wireless, Inc. Time-reversal scalability for high network densification
US9883511B1 (en) 2012-12-05 2018-01-30 Origin Wireless, Inc. Waveform design for time-reversal systems
US9882675B2 (en) 2013-08-16 2018-01-30 Origin Wireless, Inc. Time-reversal wireless systems having asymmetric architecture
WO2017100706A1 (en) 2015-12-09 2017-06-15 Origin Wireless, Inc. Method, apparatus, and systems for wireless event detection and monitoring
US10291460B2 (en) 2012-12-05 2019-05-14 Origin Wireless, Inc. Method, apparatus, and system for wireless motion monitoring
US9559874B2 (en) 2013-08-16 2017-01-31 Origin Wireless, Inc. Multiuser time-reversal division multiple access uplink system with parallel interference cancellation
US10447094B2 (en) 2016-05-03 2019-10-15 Origin Wireless, Inc. Method, system, and apparatus for wireless power transmission based on power waveforming
US9226304B2 (en) 2014-03-10 2015-12-29 Origin Wireless, Inc. Time-reversal wireless paradigm for internet of things
US9887864B1 (en) 2014-03-10 2018-02-06 Origin Wireless, Inc. Methods, devices and systems of heterogeneous time-reversal paradigm enabling direct connectivity in internet of things
US10014982B1 (en) 2015-01-22 2018-07-03 Origin Wireless, Inc. Time-reversal technologies for hybrid wireless networks
US10168414B2 (en) 2014-07-17 2019-01-01 Origin Wireless, Inc. Wireless signals and techniques for determining locations of objects in multi-path environments
US9686054B2 (en) 2014-07-17 2017-06-20 Origin Wireless, Inc. Joint waveform design and interference pre-cancellation for time-reversal systems
US10440705B2 (en) 2012-12-05 2019-10-08 Origin Wireless, Inc. Method, apparatus, server, and systems of time-reversal technology
KR101764253B1 (en) 2011-02-15 2017-08-03 삼성전자 주식회사 Phase shift keying demodulator and smart card including the same
US10270642B2 (en) 2012-12-05 2019-04-23 Origin Wireless, Inc. Method, apparatus, and system for object tracking and navigation
US10122409B2 (en) 2012-12-03 2018-11-06 University Of Maryland At College Park Systems and methods for time-reversal division multiple access wireless broadband communications
US9313020B2 (en) 2014-02-19 2016-04-12 Origin Wireless, Inc. Handshaking protocol for time-reversal system
US10327213B1 (en) 2015-10-01 2019-06-18 Origin Wireless, Inc. Time-reversal communication systems

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KR0142497B1 (en) 1995-06-23 1998-08-01 양승택 Pilot channel
JP3125644B2 (en) * 1995-09-13 2001-01-22 松下電器産業株式会社 Demodulator
US6064690A (en) * 1997-05-13 2000-05-16 Yozan Inc. Spread spectrum communication system
JP3305639B2 (en) * 1997-12-24 2002-07-24 株式会社エヌ・ティ・ティ・ドコモ RAKE receiver in direct spread CDMA transmission system
US6175588B1 (en) * 1997-12-30 2001-01-16 Motorola, Inc. Communication device and method for interference suppression using adaptive equalization in a spread spectrum communication system
US6208632B1 (en) * 1998-01-29 2001-03-27 Sharp Laboratories Of America System and method for CDMA channel estimation
EP0975100A1 (en) * 1998-07-23 2000-01-26 Siemens Aktiengesellschaft Receiver and method of recovering data from radio signals
KR100281081B1 (en) * 1998-12-31 2001-02-01 서평원 Channel estimation method

Also Published As

Publication number Publication date
KR100809995B1 (en) 2008-03-07
KR20020084111A (en) 2002-11-04
KR20080049145A (en) 2008-06-03
WO2001058027A2 (en) 2001-08-09
WO2001058027A9 (en) 2002-10-10
KR100782947B1 (en) 2007-12-07
KR20070102758A (en) 2007-10-19
WO2001058027A3 (en) 2002-04-18
KR20080091869A (en) 2008-10-14
KR100890415B1 (en) 2009-03-26
US6301291B1 (en) 2001-10-09
KR20090026825A (en) 2009-03-13
KR20070058701A (en) 2007-06-08
JP2003522455A (en) 2003-07-22

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