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IN2014CN03875A - - Google Patents

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Publication number
IN2014CN03875A
IN2014CN03875A IN3875CHN2014A IN2014CN03875A IN 2014CN03875 A IN2014CN03875 A IN 2014CN03875A IN 3875CHN2014 A IN3875CHN2014 A IN 3875CHN2014A IN 2014CN03875 A IN2014CN03875 A IN 2014CN03875A
Authority
IN
India
Prior art keywords
reference signal
signal sequence
base station
wireless base
sequence
Prior art date
Application number
Inventor
Satoshi Nagata
Yoshihisa Kishiyama
Kazuaki Takeda
Xiaoming She
Original Assignee
Ntt Docomo 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 Ntt Docomo Inc filed Critical Ntt Docomo Inc
Publication of IN2014CN03875A publication Critical patent/IN2014CN03875A/en

Links

Classifications

    • 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
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • 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
    • 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
    • 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
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

In order to enable user equipment (UE) to determine which cell a downlink signal comes from thereby enabling reception accuracy to be maintained even in a heterogeneous environment in which the same cell identification information is used this wireless communication method is characterized in that: a wireless base station generates a reference signal sequence by using a pseudo random sequence that includes user specific information and transmits the reference signal sequence to UE; and the UE uses the reference signal sequence transmitted by the wireless base station to perform signal processing.
IN3875CHN2014 2011-11-07 2012-11-01 IN2014CN03875A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011244007 2011-11-07
JP2011246875A JP2013123080A (en) 2011-11-07 2011-11-10 Wireless communication system, wireless base station, user equipment, and wireless communication method
PCT/JP2012/078341 WO2013069538A1 (en) 2011-11-07 2012-11-01 Wireless communication system, wireless base station, user equipment, and wireless communication method

Publications (1)

Publication Number Publication Date
IN2014CN03875A true IN2014CN03875A (en) 2015-10-16

Family

ID=48289915

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3875CHN2014 IN2014CN03875A (en) 2011-11-07 2012-11-01

Country Status (8)

Country Link
US (1) US9337907B2 (en)
EP (1) EP2779730A4 (en)
JP (1) JP2013123080A (en)
KR (1) KR20140095480A (en)
CN (1) CN103918297A (en)
CA (1) CA2853607A1 (en)
IN (1) IN2014CN03875A (en)
WO (1) WO2013069538A1 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11309943B2 (en) 2004-04-02 2022-04-19 Rearden, Llc System and methods for planned evolution and obsolescence of multiuser spectrum
US10425134B2 (en) 2004-04-02 2019-09-24 Rearden, Llc System and methods for planned evolution and obsolescence of multiuser spectrum
US11451275B2 (en) 2004-04-02 2022-09-20 Rearden, Llc System and method for distributed antenna wireless communications
US10985811B2 (en) 2004-04-02 2021-04-20 Rearden, Llc System and method for distributed antenna wireless communications
US10749582B2 (en) 2004-04-02 2020-08-18 Rearden, Llc Systems and methods to coordinate transmissions in distributed wireless systems via user clustering
US10886979B2 (en) 2004-04-02 2021-01-05 Rearden, Llc System and method for link adaptation in DIDO multicarrier systems
US11394436B2 (en) 2004-04-02 2022-07-19 Rearden, Llc System and method for distributed antenna wireless communications
US9685997B2 (en) 2007-08-20 2017-06-20 Rearden, Llc Systems and methods to enhance spatial diversity in distributed-input distributed-output wireless systems
JP2013123080A (en) * 2011-11-07 2013-06-20 Ntt Docomo Inc Wireless communication system, wireless base station, user equipment, and wireless communication method
JP5959830B2 (en) * 2011-11-10 2016-08-02 株式会社Ｎｔｔドコモ Radio communication system, radio base station apparatus, user terminal, and radio communication method
US11050468B2 (en) 2014-04-16 2021-06-29 Rearden, Llc Systems and methods for mitigating interference within actively used spectrum
US11189917B2 (en) 2014-04-16 2021-11-30 Rearden, Llc Systems and methods for distributing radioheads
US10194346B2 (en) * 2012-11-26 2019-01-29 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
US11190947B2 (en) 2014-04-16 2021-11-30 Rearden, Llc Systems and methods for concurrent spectrum usage within actively used spectrum
US10164698B2 (en) 2013-03-12 2018-12-25 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
RU2767777C2 (en) 2013-03-15 2022-03-21 Риарден, Ллк Systems and methods of radio frequency calibration using the principle of reciprocity of channels in wireless communication with distributed input - distributed output
EP3096561A4 (en) * 2014-01-14 2016-12-07 Sharp Kk Base-station device and terminal device
US11290162B2 (en) 2014-04-16 2022-03-29 Rearden, Llc Systems and methods for mitigating interference within actively used spectrum
JP6933352B2 (en) * 2015-08-12 2021-09-08 ホアウェイ・テクノロジーズ・カンパニー・リミテッド Information transmission method, channel estimation method, base station, user equipment, system, and program
US10680855B2 (en) * 2016-05-13 2020-06-09 Huawei Technologies Co., Ltd. Measurement in non-cellular wireless networks
CN111133808B (en) * 2017-07-28 2022-06-07 株式会社Ntt都科摩 User terminal and wireless communication method

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20065180A0 (en) * 2006-03-20 2006-03-20 Nokia Corp Send channel quality indicator
CA2679187C (en) * 2007-02-28 2015-11-03 Ntt Docomo, Inc. Base station apparatus, user apparatus and method used in mobile communication system
US8289946B2 (en) * 2007-08-14 2012-10-16 Qualcomm Incorporated Reference signal generation in a wireless communication system
KR101513038B1 (en) 2008-08-22 2015-04-17 엘지전자 주식회사 Method For Managing ID Information for Heterogeneous cells
US8493887B2 (en) 2008-12-30 2013-07-23 Qualcomm Incorporated Centralized control of peer discovery pilot transmission
US20100232384A1 (en) * 2009-03-13 2010-09-16 Qualcomm Incorporated Channel estimation based upon user specific and common reference signals
KR101663616B1 (en) * 2009-04-29 2016-10-07 엘지전자 주식회사 Method for generating reference signal sequence in wireless communication system and apparatus therefor
US8923905B2 (en) * 2009-09-30 2014-12-30 Qualcomm Incorporated Scrambling sequence initialization for coordinated multi-point transmissions
US8964657B2 (en) * 2009-11-02 2015-02-24 Qualcomm Incorporated Apparatus and method for joint encoding of user specific reference signal information in wireless communication
JP5189111B2 (en) 2010-01-07 2013-04-24 株式会社エヌ・ティ・ティ・ドコモ Radio base station apparatus, radio communication system, and radio communication method
JP5081257B2 (en) * 2010-02-04 2012-11-28 株式会社エヌ・ティ・ティ・ドコモ Radio communication system, radio base station apparatus, and communication control method
JP2013123080A (en) * 2011-11-07 2013-06-20 Ntt Docomo Inc Wireless communication system, wireless base station, user equipment, and wireless communication method
JP5959830B2 (en) * 2011-11-10 2016-08-02 株式会社Ｎｔｔドコモ Radio communication system, radio base station apparatus, user terminal, and radio communication method

Also Published As

Publication number Publication date
CA2853607A1 (en) 2013-05-16
EP2779730A4 (en) 2015-07-15
KR20140095480A (en) 2014-08-01
WO2013069538A1 (en) 2013-05-16
CN103918297A (en) 2014-07-09
EP2779730A1 (en) 2014-09-17
US20140307630A1 (en) 2014-10-16
JP2013123080A (en) 2013-06-20
US9337907B2 (en) 2016-05-10

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