ATE494713T1 - Kanal-und interferenzschätzung mit definierten piloten in ofdma-systemen - Google Patents

Kanal-und interferenzschätzung mit definierten piloten in ofdma-systemen

Info

Publication number
ATE494713T1
ATE494713T1 AT06788852T AT06788852T ATE494713T1 AT E494713 T1 ATE494713 T1 AT E494713T1 AT 06788852 T AT06788852 T AT 06788852T AT 06788852 T AT06788852 T AT 06788852T AT E494713 T1 ATE494713 T1 AT E494713T1
Authority
AT
Austria
Prior art keywords
channel
interference estimation
ofdma systems
estimation
pilots
Prior art date
Application number
AT06788852T
Other languages
English (en)
Inventor
Cristian Petru Budianu
Dhananjay Ashok Gore
Alexei Gorokhov
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of ATE494713T1 publication Critical patent/ATE494713T1/de

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
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/345—Interference values
    • 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
    • H04L25/021—Estimation of channel covariance
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • H04L25/0248—Eigen-space methods
    • 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
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Radio Relay Systems (AREA)
  • Radio Transmission System (AREA)
AT06788852T 2005-07-26 2006-07-26 Kanal-und interferenzschätzung mit definierten piloten in ofdma-systemen ATE494713T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70268205P 2005-07-26 2005-07-26
PCT/US2006/029521 WO2007014345A1 (en) 2005-07-26 2006-07-26 Channel and interference estimation with dedicated pilots in ofdma systems

Publications (1)

Publication Number Publication Date
ATE494713T1 true ATE494713T1 (de) 2011-01-15

Family

ID=37394611

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06788852T ATE494713T1 (de) 2005-07-26 2006-07-26 Kanal-und interferenzschätzung mit definierten piloten in ofdma-systemen

Country Status (11)

Country Link
US (1) US7751510B2 (de)
EP (1) EP1911230B1 (de)
JP (1) JP2009504029A (de)
KR (1) KR20080036115A (de)
CN (1) CN101273595A (de)
AT (1) ATE494713T1 (de)
CL (1) CL2006001941A1 (de)
DE (1) DE602006019438D1 (de)
MY (1) MY145227A (de)
TW (1) TW200713892A (de)
WO (1) WO2007014345A1 (de)

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US8130867B2 (en) * 2007-01-05 2012-03-06 Qualcomm Incorporated Pilot design for improved channel and interference estimation
US8315660B2 (en) 2007-02-14 2012-11-20 Qualcomm Incorporated User power offset estimation using dedicated pilot tones for OFDMA
US20080219370A1 (en) * 2007-03-06 2008-09-11 Texas Instruments Incorporated User equipment feedback structures for mimo ofdma
US7826489B2 (en) * 2007-03-23 2010-11-02 Qualcomm Incorporated Method and apparatus for improved estimation of selective channels in an OFDMA system with dedicated pilot tones
US8798012B2 (en) 2007-03-26 2014-08-05 Telefonaktiebolaget L M Ericsson (Publ) Preparation phase for switching between SU-MIMO and MU-MIMO
US8687479B2 (en) * 2007-07-10 2014-04-01 Qualcomm Incorporated Methods and apparatus for channel estimation and rate feedback in a peer to peer network
US8331249B2 (en) * 2007-07-10 2012-12-11 Qualcomm Incorporated Methods and apparatus for communicating in a peer to peer system where device communications may partially interfere with one another
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KR101407045B1 (ko) * 2007-10-26 2014-06-12 삼성전자주식회사 파일롯 배치 방법, 기록 매체 및 전송 장치
US9326253B2 (en) * 2007-11-15 2016-04-26 Qualcomm Incorporated Wireless communication channel blanking
US8798665B2 (en) * 2007-11-15 2014-08-05 Qualcomm Incorporated Beacon-based control channels
US8761032B2 (en) * 2007-11-16 2014-06-24 Qualcomm Incorporated Random reuse based control channels
US9240909B2 (en) * 2008-01-24 2016-01-19 Alcatel Lucent Reverse link channel estimation using common and dedicated pilot channels
US9009573B2 (en) * 2008-02-01 2015-04-14 Qualcomm Incorporated Method and apparatus for facilitating concatenated codes for beacon channels
US8520500B2 (en) * 2008-03-28 2013-08-27 Qualcomm Incorporated Buffered demod and demap functions
US8675537B2 (en) * 2008-04-07 2014-03-18 Qualcomm Incorporated Method and apparatus for using MBSFN subframes to send unicast information
US9107239B2 (en) 2008-04-07 2015-08-11 Qualcomm Incorporated Systems and methods to define control channels using reserved resource blocks
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KR20100069556A (ko) * 2008-12-15 2010-06-24 엘지전자 주식회사 하향링크 ｍｉｍｏ 시스템에 있어서, 파일럿 심볼 전송 방법
US9014636B2 (en) 2009-03-20 2015-04-21 Centre Of Excellence In Wireless Technology Cognitive interference management in wireless networks with relays, macro cells, micro cells, pico cells and femto cells
DE102009017552B3 (de) * 2009-04-17 2010-09-30 Sew-Eurodrive Gmbh & Co. Kg Vorrichtung und Verfahren zur berührungslosen Übertragung elektrischer Leistung und Information
CN101873601A (zh) * 2009-04-27 2010-10-27 松下电器产业株式会社 在无线通信系统中设置参考信号的方法以及系统
US8718194B2 (en) * 2009-11-30 2014-05-06 Qualcomm Incorporated Method and system for efficient channel estimation
WO2012046252A2 (en) * 2010-10-07 2012-04-12 Centre Of Excellence In Wireless Technology Robust channel estimation and interpolation
EP2625884B1 (de) * 2010-10-08 2020-07-15 BlackBerry Limited Verfahren und vorrichtung zur schätzung von lte-kanalstatusinformationen
CN102546487B (zh) * 2011-12-13 2014-11-05 华为技术有限公司 信道响应和功率偏置的联合估计方法及装置
US8971465B2 (en) 2012-03-30 2015-03-03 Qualcomm Incorporated Receiver-side estimation of and compensation for signal impairments
EP2884682B1 (de) * 2012-08-08 2019-01-30 Mitsubishi Electric Corporation Empfänger und verfahren zur bestimmung einer frequenzantwort eines übertragungspfades durch einen empfänger
KR20150060805A (ko) * 2012-09-20 2015-06-03 옵티스 와이어리스 테크놀로지, 엘엘씨 노이즈 전력 추정 방법 및 장치
US9143365B2 (en) 2013-01-30 2015-09-22 Qualcomm Incorporated Channel estimation using averaging and interpolation
EP2800437A1 (de) * 2013-05-03 2014-11-05 Fujitsu Limited Out-of-Group-Interferenzmessung in drahtlosen Kommunikationssystemen
US9648620B2 (en) * 2013-08-28 2017-05-09 Qualcomm Incorporated Tone allocation for multiple access wireless networks
AU2015301623B2 (en) * 2014-08-15 2018-10-18 The Procter & Gamble Company Oral care compositions with an enhanced sensory experience
CN107078836B (zh) * 2014-11-25 2019-11-19 华为技术有限公司 一种导频信号的生成方法及装置
US10579702B2 (en) 2018-04-19 2020-03-03 City University Of Hong Kong Systems and methods for signal processing using coordinate descent techniques for unit modulus least squares (UMLS) and unit-modulus quadratic program (UMQP)
CN111970070A (zh) * 2020-07-07 2020-11-20 普联技术有限公司 信道的选择方法、装置、存储介质及通信设备

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US7751510B2 (en) 2005-07-26 2010-07-06 Qualcomm Incorporated Simplified channel and interference estimation with dedicated pilot tones for OFDMA

Also Published As

Publication number Publication date
US7751510B2 (en) 2010-07-06
CL2006001941A1 (es) 2008-01-04
MY145227A (en) 2012-01-13
EP1911230A1 (de) 2008-04-16
JP2009504029A (ja) 2009-01-29
WO2007014345A1 (en) 2007-02-01
EP1911230B1 (de) 2011-01-05
DE602006019438D1 (de) 2011-02-17
TW200713892A (en) 2007-04-01
CN101273595A (zh) 2008-09-24
US20070025460A1 (en) 2007-02-01
KR20080036115A (ko) 2008-04-24

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