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CL2006001941A1 - Metodo y aparato para la estimacion de un canal y del nivel de interferencia de un sistema de comunicacion inalambrica. - Google Patents

Metodo y aparato para la estimacion de un canal y del nivel de interferencia de un sistema de comunicacion inalambrica.

Info

Publication number
CL2006001941A1
CL2006001941A1 CL2006001941A CL2006001941A CL2006001941A1 CL 2006001941 A1 CL2006001941 A1 CL 2006001941A1 CL 2006001941 A CL2006001941 A CL 2006001941A CL 2006001941 A CL2006001941 A CL 2006001941A CL 2006001941 A1 CL2006001941 A1 CL 2006001941A1
Authority
CL
Chile
Prior art keywords
channel
interference
level
estimating
wireless communication
Prior art date
Application number
CL2006001941A
Other languages
English (en)
Inventor
Alexei Gorokhov
Cristian Petru Budianu
Dhananhav A Gore
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
Publication of CL2006001941A1 publication Critical patent/CL2006001941A1/es

Links

Classifications

    • 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
    • H04L25/0204—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
    • H04L25/021—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
    • H04L25/0224—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
    • 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)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Quality & Reliability (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Radio Relay Systems (AREA)
  • Radio Transmission System (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

Método y aparato para la estimación de un canal y de un nivel de interferencia de un sistema de comunicación inalámbrico que comprende la recepción de una variedad de símbolos de datos, la estimación de la potencia de interferencia y la estimación de los parámetros de canal.
CL2006001941A 2005-07-26 2006-07-26 Metodo y aparato para la estimacion de un canal y del nivel de interferencia de un sistema de comunicacion inalambrica. CL2006001941A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70268205P 2005-07-26 2005-07-26

Publications (1)

Publication Number Publication Date
CL2006001941A1 true CL2006001941A1 (es) 2008-01-04

Family

ID=37394611

Family Applications (1)

Application Number Title Priority Date Filing Date
CL2006001941A CL2006001941A1 (es) 2005-07-26 2006-07-26 Metodo y aparato para la estimacion de un canal y del nivel de interferencia de un sistema de comunicacion inalambrica.

Country Status (11)

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

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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
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
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
EP2031760B1 (en) * 2007-08-31 2014-02-26 Mitsubishi Electric R&D Centre Europe B.V. Method for estimating, in a communication system, the level of interference plus noise affecting received signals representative of a set of received pilot symbols
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
WO2010106556A2 (en) * 2009-03-20 2010-09-23 Centre Of Excellence In Wireless Cognitive interference management in wireless networks with relays, macro cells, micro cells, pico cells and femto cells
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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
US9036722B2 (en) 2010-10-07 2015-05-19 Centre Of Excellence In Wireless Technology Robust channel estimation and interpolation
US9294310B2 (en) * 2010-10-08 2016-03-22 Blackberry Limited Method and apparatus for LTE channel state information estimation
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
JP5832652B2 (ja) * 2012-08-08 2015-12-16 三菱電機株式会社 受信機、受信機による伝送路の周波数応答推定方法
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 (en) * 2013-05-03 2014-11-05 Fujitsu Limited Out-of-group interference measurement in wireless communication systems
US9648620B2 (en) * 2013-08-28 2017-05-09 Qualcomm Incorporated Tone allocation for multiple access wireless networks
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Also Published As

Publication number Publication date
US7751510B2 (en) 2010-07-06
JP2009504029A (ja) 2009-01-29
MY145227A (en) 2012-01-13
DE602006019438D1 (de) 2011-02-17
EP1911230A1 (en) 2008-04-16
KR20080036115A (ko) 2008-04-24
EP1911230B1 (en) 2011-01-05
US20070025460A1 (en) 2007-02-01
TW200713892A (en) 2007-04-01
ATE494713T1 (de) 2011-01-15
CN101273595A (zh) 2008-09-24
WO2007014345A1 (en) 2007-02-01

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