NO20074553L - Signalatskillelsesteknikker for a tilveiebringe robust spredt spektrum signaldekoding - Google Patents

Signalatskillelsesteknikker for a tilveiebringe robust spredt spektrum signaldekoding

Info

Publication number
NO20074553L
NO20074553L NO20074553A NO20074553A NO20074553L NO 20074553 L NO20074553 L NO 20074553L NO 20074553 A NO20074553 A NO 20074553A NO 20074553 A NO20074553 A NO 20074553A NO 20074553 L NO20074553 L NO 20074553L
Authority
NO
Norway
Prior art keywords
signals
signal
processor
spread spectrum
mixing matrix
Prior art date
Application number
NO20074553A
Other languages
English (en)
Inventor
Steven Jeffrey Goldberg
Original Assignee
Interdigital Tech Corp
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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of NO20074553L publication Critical patent/NO20074553L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • 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
    • 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
    • H04B7/10—Polarisation diversity; Directional diversity
    • 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
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Radio Transmission System (AREA)

Abstract

Spredt spektrumkommunikasjonssystem inkluderer en antennegruppe for å motta forskjellige summeringer av ønskede og uønskede signaler, og mottakere er koplet til antennegruppen. Hver mottaker arbeider basert på en respektiv kanalkode for despredning av de ønskede og uønskede signalene for å bestemme et i det minste et ønsket signal forbundet med den respektive kanalkoden, og for å kombinere det i det minste et. ønskede signalet og de uønskede signalene etter despredningen. En behandler er koplet til mottakerne for å danne en blandingsmatrise basert på de kombinerte signalene fra hver mottaker, med oppføringer på en diagonal av blandingsmatrisen tilsvarende de ønskede signalene og oppføringer tilliggende diagonalen tilsvarende de uønskede signalene. Behandleren behandler også blandingsmatrisen slik at et nivå av de ønskede signalene øker og et nivå av de uønskede signalene reduseres. En demodulator er koplet til behandleren for å demodulere i det minste et ønsket signal.
NO20074553A 2005-02-10 2007-09-07 Signalatskillelsesteknikker for a tilveiebringe robust spredt spektrum signaldekoding NO20074553L (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US65160605P 2005-02-10 2005-02-10
US11/333,011 US8077758B2 (en) 2005-02-10 2006-01-17 Signal separation techniques to provide robust spread spectrum signal decoding
PCT/US2006/004364 WO2006086430A2 (en) 2005-02-10 2006-02-08 Signal separation techniques to provide robust spread spectrum signal decoding

Publications (1)

Publication Number Publication Date
NO20074553L true NO20074553L (no) 2007-10-31

Family

ID=36779882

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20074553A NO20074553L (no) 2005-02-10 2007-09-07 Signalatskillelsesteknikker for a tilveiebringe robust spredt spektrum signaldekoding

Country Status (9)

Country Link
US (1) US8077758B2 (no)
EP (1) EP1851871A4 (no)
JP (1) JP4754581B2 (no)
KR (1) KR100937917B1 (no)
CA (1) CA2597386A1 (no)
MX (1) MX2007009678A (no)
NO (1) NO20074553L (no)
TW (1) TWI319269B (no)
WO (1) WO2006086430A2 (no)

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* Cited by examiner, † Cited by third party
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WO2006112032A1 (en) * 2005-04-14 2006-10-26 Matsushita Electric Industrial Co., Ltd. Wireless reception apparatus, wireless transmission apparatus, wireless communication system, wireless reception method, wireless transmission method, and wireless communication method
US7769118B2 (en) * 2006-02-10 2010-08-03 Interdigital Technolgy Corporation Method and apparatus for equalizing received signals based on independent component analysis
US7933315B2 (en) * 2006-08-15 2011-04-26 Analog Devices, Inc. Spread spectrum communication and synchronization
EP2256860B1 (en) * 2009-05-26 2018-12-19 Alcatel Lucent Antenna array
US8259857B2 (en) * 2009-12-10 2012-09-04 The Aerospace Corporation Methods and systems for increased communication throughput
KR102478234B1 (ko) * 2015-05-06 2022-12-19 삼성전자주식회사 무선 단말에서의 셀 탐색장치 및 방법
US9967117B2 (en) 2015-08-07 2018-05-08 Soongsil University Research Consortium Techno-Park Cooperative spectrum sensing system using sub-nyquist sampling and method thereof
JPWO2024105798A1 (no) * 2022-11-16 2024-05-23

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US6501747B1 (en) * 1998-08-20 2002-12-31 Metawave Communications Corporation Manifold assisted channel estimation and demodulation for CDMA systems in fast fading environments
US6775260B1 (en) * 1999-02-25 2004-08-10 Texas Instruments Incorporated Space time transmit diversity for TDD/WCDMA systems
JP3428629B2 (ja) * 1999-03-26 2003-07-22 日本電気株式会社 携帯電話装置及びその電力制御方法
AU2001243424A1 (en) * 2000-02-29 2001-09-12 Hrl Laboratories, Llc Cooperative mobile antenna system
JP3596474B2 (ja) 2001-02-20 2004-12-02 松下電器産業株式会社 到来方向推定手段およびこれを用いた指向性可変送受信装置
ATE463749T1 (de) * 2001-04-27 2010-04-15 Mitsubishi Elec R&D Ct Europe Verfahren zur einfallsrichtungsschätzung
US6611231B2 (en) * 2001-04-27 2003-08-26 Vivato, Inc. Wireless packet switched communication systems and networks using adaptively steered antenna arrays
US6785341B2 (en) * 2001-05-11 2004-08-31 Qualcomm Incorporated Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information
DE10123333A1 (de) * 2001-05-14 2002-11-28 Infineon Technologies Ag Mehrteilnehmer-Detektion mittels RAKE-Empfänger-Struktur
US6990137B2 (en) * 2001-05-17 2006-01-24 Qualcomm, Incorporated System and method for received signal prediction in wireless communications systems
US7197282B2 (en) * 2001-07-26 2007-03-27 Ericsson Inc. Mobile station loop-back signal processing
US7161974B2 (en) * 2001-09-10 2007-01-09 Sasken Communication Technologies Ltd. Method for 2D antenna rake combining in a code division multiplication access system
US6792032B2 (en) 2001-12-28 2004-09-14 Interdigital Technology Corporation CDMA system transmission matrix coefficient calculation
GB0207192D0 (en) 2002-03-27 2002-05-08 Antenova Ltd Back-to-back antenna arrangements
US7656936B2 (en) * 2003-01-28 2010-02-02 Cisco Technology, Inc. Method and system for interference reduction in a wireless communication network using a joint detector
US6931362B2 (en) * 2003-03-28 2005-08-16 Harris Corporation System and method for hybrid minimum mean squared error matrix-pencil separation weights for blind source separation
JP2005051344A (ja) * 2003-07-30 2005-02-24 Toshiba Corp 通信システム
US8432952B2 (en) * 2003-11-24 2013-04-30 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for DS-CDMA interference suppression using code-specific combining
DE102004038834B4 (de) * 2004-08-10 2006-11-02 Siemens Ag Verfahren zum Erzeugen von Präambel- und Signalisierungsstrukturen in einem MIMO-OFDM-Übertragungssystem
US20060153283A1 (en) * 2005-01-13 2006-07-13 Scharf Louis L Interference cancellation in adjoint operators for communication receivers

Also Published As

Publication number Publication date
JP2008530908A (ja) 2008-08-07
TWI319269B (en) 2010-01-01
KR100937917B1 (ko) 2010-01-21
KR20070105355A (ko) 2007-10-30
EP1851871A4 (en) 2012-01-04
JP4754581B2 (ja) 2011-08-24
TW200644461A (en) 2006-12-16
EP1851871A2 (en) 2007-11-07
US8077758B2 (en) 2011-12-13
HK1120633A1 (zh) 2009-04-03
MX2007009678A (es) 2007-09-19
CA2597386A1 (en) 2006-08-17
US20060176939A1 (en) 2006-08-10
WO2006086430A2 (en) 2006-08-17
WO2006086430A3 (en) 2008-02-21

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