ATE510390T1 - Mimo-/sendediversitätskanalschätzung - Google Patents

Mimo-/sendediversitätskanalschätzung

Info

Publication number
ATE510390T1
ATE510390T1 AT08859321T AT08859321T ATE510390T1 AT E510390 T1 ATE510390 T1 AT E510390T1 AT 08859321 T AT08859321 T AT 08859321T AT 08859321 T AT08859321 T AT 08859321T AT E510390 T1 ATE510390 T1 AT E510390T1
Authority
AT
Austria
Prior art keywords
period
extended
symbol
channel estimates
signal over
Prior art date
Application number
AT08859321T
Other languages
English (en)
Inventor
Tracy Fulghum
Original Assignee
Ericsson Telefon Ab L M
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
Priority claimed from US11/955,526 external-priority patent/US8213526B2/en
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of ATE510390T1 publication Critical patent/ATE510390T1/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
    • 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
    • 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
    • H04L25/0212—Channel estimation of impulse response
    • H04L25/0214—Channel estimation of impulse response of a single coefficient
    • 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
    • H04L25/0222—Estimation of channel variability, e.g. coherence bandwidth, coherence time, fading frequency
    • 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
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
AT08859321T 2007-12-13 2008-12-11 Mimo-/sendediversitätskanalschätzung ATE510390T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/955,526 US8213526B2 (en) 2007-12-13 2007-12-13 MIMO/transmit diversity channel estimation
US12/328,199 US7936839B2 (en) 2007-12-13 2008-12-04 MIMO/transmit diversity channel estimation
PCT/EP2008/067319 WO2009074646A2 (en) 2007-12-13 2008-12-11 Mimo/transmit diversity channel estimation

Publications (1)

Publication Number Publication Date
ATE510390T1 true ATE510390T1 (de) 2011-06-15

Family

ID=40627354

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08859321T ATE510390T1 (de) 2007-12-13 2008-12-11 Mimo-/sendediversitätskanalschätzung

Country Status (4)

Country Link
US (1) US7936839B2 (de)
EP (1) EP2235897B1 (de)
AT (1) ATE510390T1 (de)
WO (1) WO2009074646A2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101731334B1 (ko) * 2009-07-01 2017-05-11 엘지전자 주식회사 다중 안테나를 지원하는 무선 이동 통신 시스템에 있어서, 사운딩 신호를 전송하는 방법 및 장치
US8737247B1 (en) * 2010-10-08 2014-05-27 Marvell International Ltd. Data channel noise estimation using pilot channel
CN103188003B (zh) * 2013-04-22 2015-12-02 清华大学 基于迭代检测的低复杂度并行干扰消除方法及系统
US9831910B2 (en) 2013-09-16 2017-11-28 Marvell International Ltd. Noise estimation based on control messages destined for other mobile terminals
KR102638667B1 (ko) * 2016-06-17 2024-02-21 삼성전자주식회사 안테나를 제어하기 위한 방법 및 그 전자 장치

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4455651A (en) * 1980-10-20 1984-06-19 Equatorial Communications Company Satellite communications system and apparatus
US6411649B1 (en) * 1998-10-20 2002-06-25 Ericsson Inc. Adaptive channel tracking using pilot sequences
US6304563B1 (en) * 1999-04-23 2001-10-16 Qualcomm Incorporated Method and apparatus for processing a punctured pilot channel
CN1334658A (zh) * 2000-06-28 2002-02-06 三星电子株式会社 用于异步cdma通信系统中移动站的导频信道功率测量装置
JP2002033716A (ja) * 2000-07-18 2002-01-31 Sony Corp Ｃｄｍａ拡散方法およびｃｄｍａ端末装置
JP3569897B2 (ja) * 2001-06-26 2004-09-29 ジーコム株式会社 無線送受信装置
US7006557B2 (en) * 2002-01-31 2006-02-28 Qualcomm Incorporated Time tracking loop for diversity pilots
US7349379B2 (en) * 2002-08-13 2008-03-25 Texas Instruments Incorporated Channel normalization
US6760321B2 (en) * 2002-10-21 2004-07-06 Sandbridge Technologies, Inc. Method and apparatus for block-based chip timing estimation in a code division multiple access communication system
WO2006064549A1 (ja) * 2004-12-14 2006-06-22 Fujitsu Limited 拡散コード割当方法、逆拡散方法、送信装置、受信装置、通信装置、無線基地局装置、及び移動端末装置
US7986680B2 (en) * 2005-04-28 2011-07-26 Qualcomm Incorporated Transmit format selection with consideration for resource reuse
US7499504B2 (en) * 2005-05-04 2009-03-03 Intel Corporation Method for determining multiple-input multiple-output (MIMO) channel coefficient using polarity-inverted training signals in an orthogonal frequency division multiplexed (OFDM) multicarrier system
CN1870461B (zh) * 2005-05-24 2011-06-01 都科摩（北京）通信技术研究中心有限公司 基于随机发射波束成形的mimo系统及其用户调度方法
US8638771B2 (en) * 2005-08-12 2014-01-28 Qualcomm Incorporated Transmission structure supporting multi-user scheduling and MIMO transmission
US8259854B2 (en) * 2006-04-13 2012-09-04 St-Ericsson Sa Channel estimation using common and dedicated pilots
US7787523B2 (en) * 2006-12-01 2010-08-31 Broadcom Corporation Method and system for delay matching in a rake receiver for WCDMA closed loop modes
US8750917B2 (en) * 2007-05-18 2014-06-10 Qualcomm Incorporated Multiplexing and power control of uplink control channels in a wireless communication system
US8649447B2 (en) * 2007-08-31 2014-02-11 Nextivity, Inc. OFDM modem using pilot sub-carrier structure
US9966989B2 (en) * 2007-10-17 2018-05-08 Applied Radar, Inc. Array antenna system and spread spectrum beamformer method

Also Published As

Publication number Publication date
EP2235897B1 (de) 2011-05-18
WO2009074646A3 (en) 2009-11-12
WO2009074646A2 (en) 2009-06-18
US7936839B2 (en) 2011-05-03
EP2235897A2 (de) 2010-10-06
US20090154530A1 (en) 2009-06-18

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