PL2345175T3 - Struktura sygnału referencyjnego dla systemu LTE-Advanced - Google Patents

Struktura sygnału referencyjnego dla systemu LTE-Advanced

Info

Publication number
PL2345175T3
PL2345175T3 PL09792741T PL09792741T PL2345175T3 PL 2345175 T3 PL2345175 T3 PL 2345175T3 PL 09792741 T PL09792741 T PL 09792741T PL 09792741 T PL09792741 T PL 09792741T PL 2345175 T3 PL2345175 T3 PL 2345175T3
Authority
PL
Poland
Prior art keywords
lte
advanced
reference signal
signal design
design
Prior art date
Application number
PL09792741T
Other languages
English (en)
Inventor
Juan Montojo
Ravi Palanki
Amir Farajidana
Kapil Bhattad
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 PL2345175T3 publication Critical patent/PL2345175T3/pl

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
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
    • H04B7/0608—Antenna selection according to transmission parameters
    • H04B7/061—Antenna selection according to transmission parameters using feedback from receiving side
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas
    • 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
    • H04B7/12—Frequency diversity
    • 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
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0634—Antenna weights or vector/matrix coefficients
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
    • H04B7/0671—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different delays between antennas
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/0874—Hybrid systems, i.e. switching and combining using subgroups of receive antennas

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
PL09792741T 2008-09-19 2009-09-18 Struktura sygnału referencyjnego dla systemu LTE-Advanced PL2345175T3 (pl)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US9873808P 2008-09-19 2008-09-19
US10880008P 2008-10-27 2008-10-27
US12/561,984 US8676133B2 (en) 2008-09-19 2009-09-17 Reference signal design for LTE A
PCT/US2009/057581 WO2010033869A2 (en) 2008-09-19 2009-09-18 Reference signal design for lte a
EP09792741.2A EP2345175B1 (en) 2008-09-19 2009-09-18 Reference signal design for lte-advanced

Publications (1)

Publication Number Publication Date
PL2345175T3 true PL2345175T3 (pl) 2015-08-31

Family

ID=42038209

Family Applications (1)

Application Number Title Priority Date Filing Date
PL09792741T PL2345175T3 (pl) 2008-09-19 2009-09-18 Struktura sygnału referencyjnego dla systemu LTE-Advanced

Country Status (20)

Country Link
US (2) US8676133B2 (pl)
EP (1) EP2345175B1 (pl)
JP (2) JP5635000B2 (pl)
KR (1) KR101293152B1 (pl)
CN (2) CN102160298B (pl)
AU (1) AU2009293010B2 (pl)
BR (1) BRPI0918550B1 (pl)
CA (2) CA2893721C (pl)
DK (1) DK2345175T3 (pl)
ES (1) ES2540884T3 (pl)
HU (1) HUE025019T2 (pl)
MX (1) MX2011002999A (pl)
MY (1) MY156094A (pl)
PL (1) PL2345175T3 (pl)
PT (1) PT2345175E (pl)
RU (1) RU2474049C2 (pl)
SG (1) SG194357A1 (pl)
TW (1) TWI420842B (pl)
WO (1) WO2010033869A2 (pl)
ZA (1) ZA201102421B (pl)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8676133B2 (en) 2008-09-19 2014-03-18 Qualcomm Incorporated Reference signal design for LTE A
US8315225B2 (en) * 2008-09-22 2012-11-20 Research In Motion Limited Aspects to support LTE-A downlink hi-order MIMO
KR101637348B1 (ko) * 2008-12-15 2016-07-07 엘지전자 주식회사 하향링크 ｍｉｍｏ 시스템에 있어서, 파일럿 심볼 전송 방법
JP5189460B2 (ja) * 2008-10-30 2013-04-24 株式会社エヌ・ティ・ティ・ドコモ 移動通信システムにおける基地局装置、ユーザ装置及び方法
JP5542290B2 (ja) * 2009-03-23 2014-07-09 エルジー エレクトロニクス インコーポレイティド 多重アンテナシステムにおける参照信号送信方法及び装置
US11218194B2 (en) 2009-03-23 2022-01-04 Lg Electronics Inc. Method and apparatus for transmitting reference signal in multi-antenna system
CN102045149B (zh) * 2009-06-23 2014-05-14 宏达国际电子股份有限公司 处理下链路信令的方法及其相关通讯装置
US9094074B2 (en) 2009-07-02 2015-07-28 Qualcomm Incorporated Method and apparatus for communicating antenna port assignments
EP2477345B1 (en) 2009-09-07 2018-11-21 LG Electronics Inc. Method and apparatus for transmitting/receiving a reference signal in a wireless communication system
WO2011054368A1 (en) * 2009-11-03 2011-05-12 Nokia Siemens Networks Oy Method and apparatus for interference-resistant wireless communications
CN102014510B (zh) * 2009-11-03 2015-02-25 电信科学技术研究院 一种上行控制信道资源配置的方法、设备及系统
CA2789439C (en) * 2010-02-12 2017-01-03 Research In Motion Limited Reference signal for a coordinated multi-point network implementation
US8593933B2 (en) * 2010-04-27 2013-11-26 Qualcomm Incorporated Modified spatial diversity schemes for coverage enhancement
US8948196B2 (en) 2010-05-03 2015-02-03 Qualcomm Incorporated Method and apparatus for sounding antennas in wireless communication
CN105611548B (zh) 2010-06-23 2019-09-13 瑞典爱立信有限公司 异构网络部署中的参考信号干扰管理
TW201204119A (en) * 2010-06-25 2012-01-16 Htc Corp Method of handling transmit power control and control signaling and related communication device
US8934560B2 (en) 2010-10-07 2015-01-13 Qualcomm Incorporated Method and apparatus of using CDD like schemes with UE-RS based open loop beamforming
WO2012108912A1 (en) * 2011-02-07 2012-08-16 Intel Corporation Co-phasing of transmissions from multiple infrastructure nodes
US9426703B2 (en) 2011-02-11 2016-08-23 Qualcomm Incorporated Cooperation and operation of macro node and remote radio head deployments in heterogeneous networks
US9544108B2 (en) 2011-02-11 2017-01-10 Qualcomm Incorporated Method and apparatus for enabling channel and interference estimations in macro/RRH system
US8995400B2 (en) 2011-02-11 2015-03-31 Qualcomm Incorporated Method and apparatus for enabling channel and interference estimations in macro/RRH system
US9054842B2 (en) * 2011-02-14 2015-06-09 Qualcomm Incorporated CRS (common reference signal) and CSI-RS (channel state information reference signal) transmission for remote radio heads (RRHs)
US9722712B2 (en) * 2011-05-09 2017-08-01 Centre Of Excellence In Wireless Technology Interference management for a distributed spatial network
US9325401B2 (en) * 2011-05-13 2016-04-26 Fujitsu Limited Beamforming from multiple transmission sites
EP2709289A4 (en) 2011-05-13 2015-01-14 Lg Electronics Inc CSI-RS CHANNEL ESTIMATION METHOD IN A WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR
KR101547052B1 (ko) * 2011-06-15 2015-08-24 엘지전자 주식회사 무선 통신 시스템에서 하향링크 제어 채널 할당 방법 및 장치
US8611916B2 (en) 2011-07-26 2013-12-17 Hitachi, Ltd. Reference signal design for distributed antenna systems
KR20130015655A (ko) * 2011-08-04 2013-02-14 주식회사 팬택 협력형 무선 통신 시스템에서 신호 충돌을 회피하는 방법 및 이를 위한 장치
JP5863940B2 (ja) * 2012-02-29 2016-02-17 京セラ株式会社 通信制御方法、ユーザ端末、及び基地局
KR102197677B1 (ko) * 2013-01-04 2020-12-31 한국전자통신연구원 다중 안테나를 이용한 신호 전송 방법
US9503171B2 (en) * 2013-01-04 2016-11-22 Electronics And Telecommunications Research Institute Method for transmitting signal using multiple antennas
EP3484075A1 (en) * 2013-03-08 2019-05-15 Huawei Technologies Co. Ltd. Method for feeding back precoding matrix indicator, receive end and transmit end
JP6121931B2 (ja) * 2014-03-20 2017-04-26 株式会社Ｎｔｔドコモ 移動通信システム、基地局、およびユーザ装置
KR101637323B1 (ko) * 2015-01-13 2016-07-20 주식회사 엘지유플러스 무선 통신 시스템에서 기지국의 안테나 포트들을 설정하는 방법 및 이를 수행하는 장치
JP6594017B2 (ja) * 2015-04-10 2019-10-23 三菱電機株式会社 通信システム
US10439763B2 (en) * 2015-06-30 2019-10-08 Telecom Italia S.P.A. Network information transmission in a mobile communication network
EP3387748B1 (en) * 2015-12-09 2022-03-09 Cohere Technologies, Inc. Pilot packing using complex orthogonal functions
US10187880B2 (en) * 2015-12-18 2019-01-22 Futurewei Technologies, Inc. System and method for transmission and reception of control and data channels with group reference signal
KR101706629B1 (ko) * 2016-01-25 2017-02-16 주식회사 이노와이어리스 Ｍｉｍｏ-ｏｆｄｍ 송신기에 대한 파워 캘리브레이션 방법
US10411782B2 (en) * 2016-03-31 2019-09-10 Qualcomm Incorporated Channel estimation for per-tone continuous precoding in downlink MIMO transmission
US11191061B2 (en) * 2016-04-19 2021-11-30 Qualcomm Incorporated Beam reference signal based narrowband channel measurement and CQI reporting
US11218236B2 (en) 2016-06-01 2022-01-04 Qualcomm Incorporated Time division multiplexing of synchronization channels
US11563505B2 (en) 2016-06-01 2023-01-24 Qualcomm Incorporated Time division multiplexing of synchronization channels
US10887035B2 (en) * 2016-06-01 2021-01-05 Qualcomm Incorporated Time division multiplexing of synchronization channels
CN112333760B (zh) * 2016-09-30 2023-12-29 华为技术有限公司 测量和上报方法、终端及基站
EP3526907B1 (en) * 2016-10-11 2024-12-04 Telefonaktiebolaget LM Ericsson (PUBL) Methods for adapting density of demodulation reference signals
CN108024371B (zh) 2016-11-01 2020-07-31 上海朗帛通信技术有限公司 一种用于动态调度的ue、基站中的方法和装置
CN108270470B (zh) * 2016-12-30 2021-02-23 华为技术有限公司 一种数据传输的方法及发送端设备、接收端设备
JP6972136B2 (ja) * 2017-01-09 2021-11-24 テレフオンアクチーボラゲット エルエム エリクソン（パブル） ハイブリッドｓｒｓ組合せシグナリング
US10333595B2 (en) 2017-02-21 2019-06-25 Qualcomm Incorporated Reference signal and Tx/Rx precoding for UE multiplexing in NR SS
US10237055B1 (en) 2017-12-12 2019-03-19 Mitsubishi Electric Research Laboratories, Inc. Method and systems for radio transmission with distributed cyclic delay diversity
DE102018209387A1 (de) * 2018-06-13 2019-12-19 Robert Bosch Gmbh Gruppiervorrichtung und Verfahren zum Gruppieren zumindest der Empfangssignale von mindestens vier auf einem Gesamtgebiet verteilten Sendern
US11489700B2 (en) 2021-01-04 2022-11-01 Qualcomm Incorporated Non-linear reference signal design
CN117337547A (zh) * 2021-05-20 2024-01-02 联想（新加坡）私人有限公司 确定复合迫零均衡器
US12219499B2 (en) 2022-01-20 2025-02-04 Qualcomm Incorporated Demodulation reference signaling with varying transmit power

Family Cites Families (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999014870A2 (en) * 1997-09-15 1999-03-25 Adaptive Telecom, Inc. Practical space-time radio method for cdma communication capacity enhancement
US6765531B2 (en) * 1999-01-08 2004-07-20 Trueposition, Inc. System and method for interference cancellation in a location calculation, for use in a wireless location system
US6515978B1 (en) 1999-04-19 2003-02-04 Lucent Technologies Inc. Methods and apparatus for downlink diversity in CDMA using Walsh codes
US6611500B1 (en) * 1999-11-04 2003-08-26 Lucent Technologies, Inc. Methods and apparatus for derivative-based optimization of wireless network performance
JP3939069B2 (ja) * 2000-03-22 2007-06-27 三洋電機株式会社 アンテナ指向性制御方法および無線装置
KR100377391B1 (ko) 2000-05-25 2003-03-26 삼성전자주식회사 두 개 이상 안테나를 사용하는 안테나 전송 다이버시티방법 및 장치
US20020028655A1 (en) * 2000-07-14 2002-03-07 Rosener Douglas K. Repeater system
US6836673B1 (en) * 2000-12-22 2004-12-28 Arraycomm, Inc. Mitigating ghost signal interference in adaptive array systems
US9473269B2 (en) 2003-12-01 2016-10-18 Qualcomm Incorporated Method and apparatus for providing an efficient control channel structure in a wireless communication system
US9143305B2 (en) * 2005-03-17 2015-09-22 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9136974B2 (en) * 2005-08-30 2015-09-15 Qualcomm Incorporated Precoding and SDMA support
US8693405B2 (en) * 2005-10-27 2014-04-08 Qualcomm Incorporated SDMA resource management
JP4633644B2 (ja) 2006-02-10 2011-02-16 日本電信電話株式会社 無線通信方法
EP2838237B1 (en) * 2006-04-12 2016-06-29 Lg Electronics Inc. Method and devices for allocating reference signals in mimo system
US7493406B2 (en) * 2006-06-13 2009-02-17 International Business Machines Corporation Maximal flow scheduling for a stream processing system
US8271043B2 (en) * 2006-08-21 2012-09-18 Qualcomm Incorporated Approach to a unified SU-MIMO/MU-MIMO operation
US7925253B2 (en) 2006-09-08 2011-04-12 Qualcomm Incorporated Radiated performance of a wireless device
US20100015927A1 (en) * 2006-10-24 2010-01-21 Panasonic Corporation Radio communication device and radio communication method
US7961640B2 (en) * 2006-10-26 2011-06-14 Qualcomm Incorporated Method and apparatus for codebook exchange in a multiple access wireless communication system
JP2010508789A (ja) * 2006-11-01 2010-03-18 クゥアルコム・インコーポレイテッド 直交無線通信システムにおけるセルサーチの参照信号設計
US8009661B2 (en) * 2007-01-31 2011-08-30 Telefonaktiebolaget Lm Ericsson (Publ) Cell searching system and method
US8068555B2 (en) * 2007-02-13 2011-11-29 Telefonaktiebolaget L M Ericsson (Publ) Methods and systems for combined cyclic delay diversity and precoding of radio signals
WO2008103317A2 (en) * 2007-02-16 2008-08-28 Interdigital Technology Corporation Precoded pilot transmission for multi-user and single user mimo communications
WO2008103805A2 (en) 2007-02-22 2008-08-28 Cisco Technology, Inc. Method and system for achieving spatial diversity of a wireless communications network
US20080273452A1 (en) * 2007-05-04 2008-11-06 Farooq Khan Antenna mapping in a MIMO wireless communication system
EP3624372B1 (en) * 2007-05-08 2024-10-09 Telefonaktiebolaget LM Ericsson (publ) Transmission mode selection
US8290088B2 (en) * 2007-08-07 2012-10-16 Research In Motion Limited Detecting the number of transmit antennas in a base station
US8542770B2 (en) 2007-08-17 2013-09-24 Panasonic Corporation Radio communication device and radio communication method
US8059632B2 (en) * 2007-09-14 2011-11-15 Sharp Laboratories Of America, Inc. Method and system for transmission of channel quality indicators (CQIs) by mobile devices in a wireless communications network
US8780798B2 (en) * 2008-03-05 2014-07-15 Telefonaktiebolaget L M Ericsson (Publ) Method and devices for providing enhanced signaling
US8458558B2 (en) * 2008-04-30 2013-06-04 Motorola Mobility Llc Multi-antenna configuration signaling in wireless communication system
WO2010002734A2 (en) * 2008-06-30 2010-01-07 Interdigital Patent Holdings, Inc. Method and apparatus to support single user (su) and multiuser (mu) beamforming with antenna array groups
US8218663B2 (en) * 2008-07-29 2012-07-10 Texas Instruments Incorporated Reference signal resource allocation for single user MIMO
KR101268687B1 (ko) * 2008-08-18 2013-05-29 한국전자통신연구원 다중-셀 협력 통신을 위한 기지국들 및 단말을 포함하는 통신 시스템
WO2010024743A1 (en) * 2008-08-27 2010-03-04 Telefonaktiebolaget L M Ericsson (Publ) Method and arrangement, cell id collision detection
US8676133B2 (en) 2008-09-19 2014-03-18 Qualcomm Incorporated Reference signal design for LTE A
US8208434B2 (en) * 2009-04-28 2012-06-26 Motorola Mobility, Inc. Method of signaling particular types of resource elements in a wireless communication system

Also Published As

Publication number Publication date
WO2010033869A3 (en) 2010-05-14
US9749027B2 (en) 2017-08-29
JP5635000B2 (ja) 2014-12-03
HUE025019T2 (en) 2016-04-28
RU2474049C2 (ru) 2013-01-27
AU2009293010A1 (en) 2010-03-25
CA2893721A1 (en) 2010-03-25
ZA201102421B (en) 2011-12-28
CN104320232A (zh) 2015-01-28
PT2345175E (pt) 2015-08-03
BRPI0918550B1 (pt) 2020-11-10
EP2345175B1 (en) 2015-04-08
HK1156444A1 (en) 2012-06-08
ES2540884T3 (es) 2015-07-14
RU2011115198A (ru) 2012-10-27
CN104320232B (zh) 2019-01-15
CA2736098A1 (en) 2010-03-25
CN102160298A (zh) 2011-08-17
US20100075706A1 (en) 2010-03-25
US8676133B2 (en) 2014-03-18
MX2011002999A (es) 2011-04-26
JP2014239455A (ja) 2014-12-18
JP2012503446A (ja) 2012-02-02
BRPI0918550A2 (pt) 2015-12-08
SG194357A1 (en) 2013-11-29
MY156094A (en) 2016-01-15
WO2010033869A2 (en) 2010-03-25
DK2345175T3 (en) 2015-07-13
JP6001018B2 (ja) 2016-10-05
TW201019629A (en) 2010-05-16
KR101293152B1 (ko) 2013-08-12
KR20110059773A (ko) 2011-06-03
CA2893721C (en) 2019-01-15
CN102160298B (zh) 2014-10-08
EP2345175A2 (en) 2011-07-20
AU2009293010B2 (en) 2013-11-21
US20140192919A1 (en) 2014-07-10
TWI420842B (zh) 2013-12-21
CA2736098C (en) 2015-11-03

Similar Documents

Publication Publication Date Title
PL2345175T3 (pl) Struktura sygnału referencyjnego dla systemu LTE-Advanced
ZA201105617B (en) Hearability improvements for reference signals
EP2409464A4 (en) POSITIONING REFERENCE SIGNALS
PL2241049T3 (pl) Układ sondującego sygnału odniesienia
GB0811863D0 (en) Nooise cancellation system
GB0915657D0 (en) Amplifier
GB0816452D0 (en) Isolation detection
GB2508313B (en) Railway signals
GB2472936B (en) Estimating signal characteristics
GB2465235B (en) Amplifier
GB0805688D0 (en) Enhancing signals
GB0920729D0 (en) Signal fading
GB2456522B (en) Signal splitter
GB0807176D0 (en) Signal generation
GB201013435D0 (en) Fixed signals
GB0821615D0 (en) Signal reception
TWI366422B (en) Signal connecting component
GB2466807B (en) Connection means
GB0910529D0 (en) Signal plug
TWI372519B (en) Signal transimisson interface apparatus
PH32009000326S1 (en) Amplifier
GB0904416D0 (en) Railway signals
GB0904415D0 (en) Railway signals
GB0915599D0 (en) Railway signals
GB0723435D0 (en) Signal aassignment