IN2012DN06619A - - Google Patents

Info

Publication number
IN2012DN06619A
IN2012DN06619A IN6619DEN2012A IN2012DN06619A IN 2012DN06619 A IN2012DN06619 A IN 2012DN06619A IN 6619DEN2012 A IN6619DEN2012 A IN 6619DEN2012A IN 2012DN06619 A IN2012DN06619 A IN 2012DN06619A
Authority
IN
India
Prior art keywords
groups
channel estimation
prbs
bandwidth
resource blocks
Prior art date
Application number
Inventor
Yueyi You
Haiyong Xiao
Original Assignee
Zte 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 Zte Corp filed Critical Zte Corp
Publication of IN2012DN06619A publication Critical patent/IN2012DN06619A/en

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
    • H04L25/022—Channel estimation of frequency response
    • 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
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
    • H04L25/0234—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals by non-linear interpolation
    • 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
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
    • H04L27/2633—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators using partial FFTs
    • 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
    • H04L5/0023—Time-frequency-space

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Nonlinear Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

A method and device for channel estimation in an Orthogonal Frequency Division Multiplexing (OFDM) system are disclosed. The method includes steps as follows: A grouping Physical Resource Blocks (PRBs) in bandwidth of the OFDM system; B extracting at least one from the groups to perform channel estimation and obtaining channel coefficients wherein the number of the extracted groups is less than the number of the total groups; C accomplishing multi input multi output (MIMO) demodulation with the obtained channel coefficients. D judging whether the channel estimation of groups is completed if yes ending otherwise returning to step B. By dividing PRBs in the bandwidth of the OFDM system into some groups and then performing channel estimation in turn separately with each group of resource blocks with the device the storage sharing is realized and thereby the storage is saved.
IN6619DEN2012 2010-03-24 2010-11-02 IN2012DN06619A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010138069.2A CN102202029B (en) 2010-03-24 2010-03-24 Channel estimation method and device for orthogonal frequency division multiplexing system
PCT/CN2010/078354 WO2011116606A1 (en) 2010-03-24 2010-11-02 Method and device for channel estimation in orthogonal frequency division multiplexing system

Publications (1)

Publication Number Publication Date
IN2012DN06619A true IN2012DN06619A (en) 2015-10-23

Family

ID=44662429

Family Applications (1)

Application Number Title Priority Date Filing Date
IN6619DEN2012 IN2012DN06619A (en) 2010-03-24 2010-11-02

Country Status (6)

Country Link
US (1) US8798178B2 (en)
EP (1) EP2515570B1 (en)
JP (1) JP5548785B2 (en)
CN (1) CN102202029B (en)
IN (1) IN2012DN06619A (en)
WO (1) WO2011116606A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5276471B2 (en) * 2009-02-25 2013-08-28 京セラ株式会社 Wireless communication device
US9503285B2 (en) * 2011-03-01 2016-11-22 Qualcomm Incorporated Channel estimation for reference signal interference cancelation
CN102953131B (en) * 2011-08-20 2016-08-03 苏州敏喆机械有限公司 A kind of big distance of positions cross air blowing device
US9774481B2 (en) * 2012-04-05 2017-09-26 Qualcomm, Incorporated Systems and methods for transmitting pilot tones
US9402256B2 (en) 2012-08-08 2016-07-26 Blackberry Limited Method and system having reference signal design for new carrier types
US9184889B2 (en) * 2012-08-08 2015-11-10 Blackberry Limited Method and system having reference signal design for new carrier types
CN103841057B (en) 2012-11-21 2017-07-14 电信科学技术研究院 A kind of channel estimation methods and equipment
KR102094732B1 (en) 2013-03-11 2020-03-30 삼성전자주식회사 Device of adaptively estimating channel in ofdm system and method thereof
US9967809B2 (en) * 2013-09-24 2018-05-08 Zte Wistron Telecom Ab Method and apparatus for modified reference signal transmission for cell discovery
CN109995689B (en) * 2017-12-29 2021-08-06 普天信息技术有限公司 Method, device, electronic equipment and storage medium for estimating PUCCH frequency offset
WO2019182486A1 (en) * 2018-03-20 2019-09-26 Telefonaktiebolaget Lm Ericsson (Publ) A wireless device, a network node and methods therein for enabling and determining reference signal configurations in a wireless communications network

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4490368B2 (en) * 2003-04-21 2010-06-23 三菱電機株式会社 Wireless communication apparatus, wireless communication system, and wireless communication method
RU2313909C2 (en) * 2003-06-18 2007-12-27 Самсунг Электроникс Ко., Лтд. Device and method for transmitting and receiving a pilot-signal template for identification of base station in ofdm communication system
KR100564601B1 (en) * 2003-12-29 2006-03-28 삼성전자주식회사 The detecting method for echo in frequency domain and equalizer using the detecting method.
KR100594084B1 (en) * 2004-04-30 2006-06-30 삼성전자주식회사 Channel estimation method and channel estimator in ofdm/ofdma receiver
US7457231B2 (en) 2004-05-04 2008-11-25 Qualcomm Incorporated Staggered pilot transmission for channel estimation and time tracking
EP1929684A4 (en) * 2005-08-23 2010-05-19 Nortel Networks Ltd Adaptive two-dimensional channel interpolation
CN101422067B (en) * 2006-04-28 2016-08-03 松下电器（美国）知识产权公司 Radio communication base station device and wireless communications method for multi-carrier communication
CN100536448C (en) * 2006-05-26 2009-09-02 上海大学 MIMO-OFDM channel estimating method for united orthogonal guide frequency design
CN104378191B (en) * 2006-12-28 2018-01-12 诺基亚技术有限公司 Method and apparatus for the resource-constrained distribution in Long Term Evolution
US8320407B2 (en) * 2007-01-05 2012-11-27 Qualcomm Incorporated Mapping of subpackets to resources in a communication system
CN104836644A (en) * 2007-01-09 2015-08-12 华为技术有限公司 Base station device, mobile station device, control information transmitting method, control information receiving method and program
US8379738B2 (en) 2007-03-16 2013-02-19 Samsung Electronics Co., Ltd. Methods and apparatus to improve performance and enable fast decoding of transmissions with multiple code blocks
KR100929850B1 (en) * 2007-04-02 2009-12-04 삼성전자주식회사 Apparatus and Method for Eliminating Interference in Broadband Wireless Communication Systems
JP5282425B2 (en) * 2008-03-19 2013-09-04 富士通モバイルコミュニケーションズ株式会社 Wireless communication terminal
US20090245402A1 (en) * 2008-03-31 2009-10-01 Qualcomm Incorporated Apparatus and method for tile processing in wireless communications
JP2010045422A (en) * 2008-08-08 2010-02-25 Sharp Corp Radio receiver, and radio reception method
CN101534281B (en) * 2009-04-20 2011-06-22 北京交通大学 Diversity channel estimate method for OFDM systems based on comb-type pilot frequency
CN101582712B (en) * 2009-06-19 2014-11-05 中兴通讯股份有限公司 Method for realizing precoding and method for generating precoding matrices

Also Published As

Publication number Publication date
CN102202029B (en) 2015-01-28
EP2515570A1 (en) 2012-10-24
US20120300884A1 (en) 2012-11-29
CN102202029A (en) 2011-09-28
US8798178B2 (en) 2014-08-05
WO2011116606A1 (en) 2011-09-29
EP2515570B1 (en) 2016-12-21
EP2515570A4 (en) 2015-09-09
JP2013520853A (en) 2013-06-06
JP5548785B2 (en) 2014-07-16

Similar Documents

Publication Publication Date Title
IN2012DN06619A (en)
MX2010003675A (en) Method and apparatus for allocating resources of a control channel in a mobile communication system using orthogonal frequency division multiplexing.
WO2014016677A3 (en) Highly-spectrally-efficient transmission using orthogonal frequency division multiplexing
WO2010110607A3 (en) Apparatus and method for performing a harq in a multicarrier system
WO2013024967A3 (en) Method for base station to mulitiplex downlink control channel in wireless communication system and apparatus therefor
WO2010106923A8 (en) Insertion of downlink demodulation reference signals into ofdm frames
IN2015MN00564A (en)
WO2011025202A3 (en) Method and apparatus for configuring control channel in ofdm system
MX2013008294A (en) Inserting virtual carrier in conventional ofdm host carrier in communications system.
WO2011126246A3 (en) Method and apparatus for transmitting control information in wireless communication system
WO2012033335A3 (en) Method and device of transmitting control information in a wireless communication system
WO2013015632A3 (en) Method and apparatus for transmitting control information in wireless communication system
WO2012109037A3 (en) Method and apparatus for enabling channel and interference estimations in macro/rrh system
WO2013189410A3 (en) Pilot symbol bearing and processing method and device
MX2015003870A (en) Control channel detection method and user equipment.
WO2012122549A3 (en) Biological data networks and methods therefor
WO2011122893A3 (en) Method and apparatus for determining search spaces and search positions in a communication system which operates a plurality of component carriers, and method and apparatus for decoding control information using same
WO2013144897A3 (en) Hybrid multicarrier transmission and reception techniques
TW200943790A (en) Transmitters, receivers and apparatus and methods for pilot design
MY164952A (en) Mobile station apparatus, base station apparatus, communication method, and integrated circuit
WO2011096773A3 (en) Broadcast signal transmitting apparatus, broadcast signal receiving apparatus, and method for transceiving a broadcast signal in a broadcast signal transceiving apparatus
RU2013111480A (en) RANDOMIZATION OF SIGNALS UNDER EXTENSION OF THE SPECTRUM BY BLOCK CODES
IN2015MN00475A (en)
RU2012118710A (en) COMMUNICATION DEVICE, COMMUNICATION METHOD, COMPUTER PROGRAM AND COMMUNICATION SYSTEM
WO2012115377A3 (en) Apparatus for performing a cell selection in a wireless communication system and method thereof