BRPI0817069A2 - método de alocamento de subportadoras piloto para uso na comunicação downlink e uplink em um sistema de antena de múltipla-entrada múltipla-saída (mimo) e sistema de comunicação sem fio usando a modulação por multiplexação por divisão de freqüencia ortogonal (ofdm) - Google Patents

método de alocamento de subportadoras piloto para uso na comunicação downlink e uplink em um sistema de antena de múltipla-entrada múltipla-saída (mimo) e sistema de comunicação sem fio usando a modulação por multiplexação por divisão de freqüencia ortogonal (ofdm)

Info

Publication number
BRPI0817069A2
BRPI0817069A2 BRPI0817069A BRPI0817069A BRPI0817069A2 BR PI0817069 A2 BRPI0817069 A2 BR PI0817069A2 BR PI0817069 A BRPI0817069 A BR PI0817069A BR PI0817069 A BRPI0817069 A BR PI0817069A BR PI0817069 A2 BRPI0817069 A2 BR PI0817069A2
Authority
BR
Brazil
Prior art keywords
mime
ofdm
downlink
modulation
frequency division
Prior art date
Application number
BRPI0817069A
Other languages
English (en)
Portuguese (pt)
Inventor
Jin Sam Kwak
Jin Soo Choi
Ki Ho Nam
Seung Woo Nam
Original Assignee
Lg Electronics 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 Lg Electronics Inc filed Critical Lg Electronics Inc
Publication of BRPI0817069A2 publication Critical patent/BRPI0817069A2/pt

Links

Classifications

    • 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
    • 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
    • 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
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • 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
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26134—Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or frequency domain
    • 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
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • 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
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • 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
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • 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
    • 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
    • H04L5/0094—Indication of how sub-channels of the path are allocated

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
BRPI0817069A 2007-09-10 2008-09-09 método de alocamento de subportadoras piloto para uso na comunicação downlink e uplink em um sistema de antena de múltipla-entrada múltipla-saída (mimo) e sistema de comunicação sem fio usando a modulação por multiplexação por divisão de freqüencia ortogonal (ofdm) BRPI0817069A2 (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20070091730 2007-09-10
US2189408P 2008-01-17 2008-01-17
US4562408P 2008-04-17 2008-04-17
PCT/KR2008/005312 WO2009035246A2 (en) 2007-09-10 2008-09-09 Wireless communication system using pilot subcarrier allocation

Publications (1)

Publication Number Publication Date
BRPI0817069A2 true BRPI0817069A2 (pt) 2016-10-11

Family

ID=40694615

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0817069A BRPI0817069A2 (pt) 2007-09-10 2008-09-09 método de alocamento de subportadoras piloto para uso na comunicação downlink e uplink em um sistema de antena de múltipla-entrada múltipla-saída (mimo) e sistema de comunicação sem fio usando a modulação por multiplexação por divisão de freqüencia ortogonal (ofdm)

Country Status (9)

Country Link
US (4) US8149934B2 (enExample)
EP (2) EP2171895A4 (enExample)
JP (2) JP5138038B2 (enExample)
KR (2) KR101520667B1 (enExample)
CN (2) CN101803256B (enExample)
AU (1) AU2008297736B2 (enExample)
BR (1) BRPI0817069A2 (enExample)
MX (1) MX2010002666A (enExample)
WO (2) WO2009035246A2 (enExample)

Families Citing this family (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7248559B2 (en) 2001-10-17 2007-07-24 Nortel Networks Limited Scattered pilot pattern and channel estimation method for MIMO-OFDM systems
CN1951050B (zh) * 2004-03-15 2013-10-30 苹果公司 用于具有四根发射天线的ofdm系统的导频设计
WO2008041546A1 (en) * 2006-09-25 2008-04-10 Panasonic Corporation Radio communication device and pilot arrangement method
KR101520667B1 (ko) 2007-09-10 2015-05-18 엘지전자 주식회사 다중 안테나 시스템에서의 파일럿 부반송파 할당 방법
US8331309B2 (en) 2008-03-10 2012-12-11 Wi-Lan, Inc. Efficient and consistent wireless downlink channel configuration
KR20090110208A (ko) * 2008-04-16 2009-10-21 엘지전자 주식회사 파일롯 구조를 이용한 데이터 전송방법
US8488694B2 (en) * 2008-05-06 2013-07-16 Industrial Technology Research Institute System and method for pilot design
KR101531515B1 (ko) * 2008-07-04 2015-06-26 엘지전자 주식회사 파일롯 서브캐리어 할당을 사용하는 복수개의 송신 안테나를 갖는 무선 통신 시스템
US8811339B2 (en) 2008-07-07 2014-08-19 Blackberry Limited Handover schemes for wireless systems
KR101498059B1 (ko) 2008-07-22 2015-03-03 엘지전자 주식회사 파일롯 서브캐리어 할당을 사용하는 복수개의 송신 안테나를 갖는 무선 통신 시스템
US8670774B2 (en) * 2008-09-19 2014-03-11 Qualcomm Incorporated Systems and methods for uplink control resource allocation
CN101729477B (zh) * 2008-10-31 2015-02-25 三星电子株式会社 多载波无线传输系统中发射信号的方法
US8711672B2 (en) * 2008-12-30 2014-04-29 Acer Incorporated Wireless communication system using pilot allocation, method and pilot pattern thereof
US9647810B2 (en) * 2009-03-17 2017-05-09 Samsung Electronics Co., Ltd. Method and system for mapping pilot signals in multi-stream transmissions
EP2230788A1 (en) * 2009-03-20 2010-09-22 Mitsubishi Electric R&D Centre Europe B.V. Method and device for determining a shifting parameter to be used by a telecommunication device for transferring symbols
CN101841358B (zh) * 2009-03-20 2013-08-21 富士通株式会社 基站和移动台
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
US8879532B2 (en) * 2009-03-24 2014-11-04 Samsung Electronics Co., Ltd. Techniques for pilot stream remapping in OFDM wireless communication system
US8305953B2 (en) * 2009-03-31 2012-11-06 Intel Corporation Narrowband transmissions using a plurality of antennas
KR101723412B1 (ko) * 2009-07-17 2017-04-05 엘지전자 주식회사 하향링크 참조신호의 전송방법 및 장치
CN101958737B (zh) * 2009-07-20 2014-08-06 株式会社Ntt都科摩 一种用于下行发送分集的数据处理方法及基站
KR20110013195A (ko) * 2009-07-30 2011-02-09 엘지전자 주식회사 다중 안테나를 지원하는 무선 이동 통신 시스템에 있어서, 파일럿 신호를 전송하는 방법 및 장치
JP2013502139A (ja) 2009-08-14 2013-01-17 エルジー エレクトロニクス インコーポレイティド 多重アンテナを支援する無線通信システムにおいてダウンリンク参照信号を伝送する方法及び装置
EP2466838B1 (en) 2009-08-14 2020-12-30 LG Electronics Inc. Method and device for transmitting a downlink reference signal in a wireless communication system supporting multiple antennas
KR101769364B1 (ko) * 2009-08-27 2017-08-18 엘지전자 주식회사 무선 통신 시스템에서 프레임 구조를 이용하여 신호를 송수신하는 장치 및 방법
KR101696464B1 (ko) * 2009-08-28 2017-01-16 엘지전자 주식회사 무선 통신 시스템에서 파일럿 전송 방법 및 장치
US8300585B2 (en) * 2009-09-04 2012-10-30 Intel Corporation Method and apparatus for transmitting an ACK/NACK signal in a wireless communication system
KR20110040663A (ko) * 2009-10-12 2011-04-20 엘지전자 주식회사 고정된 경로를 이동하는 고속 이동체를 위한 무선 통신 시스템
EP2346224A1 (en) * 2010-01-13 2011-07-20 Panasonic Corporation Pilot Patterns for OFDM Systems with Four Transmit Antennas
CN102714527B (zh) * 2010-01-22 2015-04-01 Lg电子株式会社 用于在mimo无线通信系统中提供下行链路控制信息的方法和设备
KR101674418B1 (ko) * 2010-04-27 2016-11-09 삼성전자주식회사 광대역 무선통신 시스템에서 다양한 시스템 대역폭을 지원하기 위한 장치 및 방법
KR101717298B1 (ko) 2010-05-10 2017-03-17 엘지전자 주식회사 무선 통신 시스템에서 상향링크 제어 채널을 위한 자원 할당 방법 및 장치
US8514976B2 (en) 2010-09-27 2013-08-20 Qualcomm Incorporated Method and apparatus for coding and interleaving for very high throughput wireless communications
BR112013007790A2 (pt) * 2010-10-01 2017-10-10 Interdigital Patent Holdings Inc método e dispositivo para transmissão de piloto em múltiplas antenas
KR102040336B1 (ko) * 2010-10-01 2019-11-04 인터디지탈 패튼 홀딩스, 인크 다중 안테나들을 통해 파일럿을 송신하기 위한 방법 및 장치
KR101726594B1 (ko) * 2010-11-29 2017-04-13 삼성전자주식회사 디지털 비디오 방송 시스템에서 채널 추정을 위한 장치 및 방법
US20130315323A1 (en) * 2011-04-24 2013-11-28 Broadcom Corporation Traveling pilots within single user, multiple user, multiple access, and/or MIMO wireless communications
GB2494650B (en) * 2011-09-13 2014-02-19 Samsung Electronics Co Ltd Additional data streams for multi-transmitter wireless systems
EP2571191A3 (en) * 2011-09-13 2014-11-26 Samsung Electronics Co., Ltd. Method and apparatus for transmitting/receiving data stream in wireless system
US9276709B2 (en) * 2011-11-08 2016-03-01 Futurewei Technologies, Inc. System and method for interference management in cellular networks
WO2013115708A2 (en) 2012-01-30 2013-08-08 Telefonaktiebolaget L M Ericsson (Publ) Method, apparatus, and system for using common and demodulation pilot signals in multi-antenna wireless communications
DE112012004319B4 (de) * 2012-02-15 2024-03-14 Lg Electronics Inc. Verfahren und Vorrichtung zur Erzeugung einer Pilotsequenz
US20130301563A1 (en) * 2012-05-11 2013-11-14 Samsung Electronics Co., Ltd Pilot design for millimeter wave broadband
WO2014017716A1 (ko) * 2012-07-23 2014-01-30 엘지전자 주식회사 무선 통신 시스템에서 하향링크 제어 채널을 위한 분산적 자원 할당에 따른 다이버시티 이득 획득 방법 및 이를 위한 장치
WO2014024502A1 (ja) * 2012-08-10 2014-02-13 パナソニック株式会社 Ｏｆｄｍ送信装置、ｏｆｄｍ送信方法、ｏｆｄｍ受信装置、及びｏｆｄｍ受信方法
CN103687010B (zh) * 2012-08-30 2017-07-04 电信科学技术研究院 一种传输参考信号的方法、装置及系统
CN102932314B (zh) * 2012-11-27 2015-04-22 中国科学院微电子研究所 一种正交频分复用电力线载波通信系统的子载波分配方法
CN103281264B (zh) * 2012-11-29 2017-02-22 浙江师范大学 Ofdm系统中自适应导频样式的信道估计方法
US10028302B2 (en) 2013-03-08 2018-07-17 Huawei Technologies Co., Ltd. System and method for uplink grant-free transmission scheme
US9497053B2 (en) * 2013-03-11 2016-11-15 Futurewei Technologies, Inc. Upstream pilot structure in point to multipoint orthogonal frequency division multiplexing communication system
JP6254698B2 (ja) * 2013-08-05 2017-12-27 エルジー エレクトロニクス インコーポレイティド 無線通信システムにおいて装置対装置端末の信号送信方法及び装置
JP5781139B2 (ja) * 2013-10-25 2015-09-16 株式会社Ｎｔｔドコモ 無線基地局装置、移動端末装置、無線通信システム及び無線通信方法
CN104717045B (zh) * 2013-12-12 2018-08-14 华为技术有限公司 一种导频排布确定方法及基站
JP2017535141A (ja) * 2014-09-29 2017-11-24 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． チャネル推定方法、通信ノード、および通信システム
WO2016070415A1 (en) * 2014-11-07 2016-05-12 Mediatek Singapore Pte. Ltd. Methods for resource allocation
US9985760B2 (en) * 2015-03-31 2018-05-29 Huawei Technologies Co., Ltd. System and method for an adaptive frame structure with filtered OFDM
CN104780033B (zh) * 2015-04-22 2017-11-14 电子科技大学 一种用于sim‑ofdm系统的自适应子载波分配方法
US10868650B2 (en) * 2015-05-27 2020-12-15 Qualcomm Incorporated Pilot reconfiguration and retransmission in wireless networks
KR102647626B1 (ko) 2015-06-19 2024-03-14 파나소닉 인텔렉츄얼 프로퍼티 코포레이션 오브 아메리카 송신 방법, 수신 방법, 송신 장치, 및 수신 장치
JP2017011689A (ja) 2015-06-19 2017-01-12 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 送信方法、受信方法、送信装置、及び受信装置
JP7002185B2 (ja) * 2015-07-30 2022-01-20 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 送信方法、送信装置、受信方法、受信装置
CN105049397B (zh) * 2015-08-31 2018-06-12 电子科技大学 一种用于sim-ofdm系统的功率分配方法
CN106685874B (zh) * 2015-11-06 2020-02-14 华为技术有限公司 基于ofdm的数据传输方法及装置
WO2017097360A1 (en) * 2015-12-10 2017-06-15 Sony Mobile Communications Inc. Operating a cellular mimo system
EP3403352A1 (en) * 2016-02-02 2018-11-21 Huawei Technologies Co., Ltd. Systems and methods for scheduling of resources and pilot patterns to user terminals in a multi-user wireless network
CN107040997B (zh) * 2016-02-03 2023-07-14 中兴通讯股份有限公司 资源配置的方法及装置
CN106059729B (zh) * 2016-05-09 2018-12-11 电子科技大学 一种用于子载波调制系统的基于欧式距离的功率分配方法
CN109076034B (zh) 2016-06-20 2020-08-25 Oppo广东移动通信有限公司 信息传输方法和装置
CN107733561B (zh) 2016-08-12 2019-12-13 华为技术有限公司 信号发送装置、信号检测装置及方法
CN107809306B (zh) * 2016-09-08 2020-06-30 上海朗帛通信技术有限公司 一种无线传输中的ue、基站中的方法和装置
JP6876238B2 (ja) * 2016-11-02 2021-05-26 ソニーグループ株式会社 端末装置、基地局装置および通信方法
WO2018112920A1 (zh) * 2016-12-23 2018-06-28 华为技术有限公司 信号传输的方法和基站
US10721052B2 (en) * 2017-02-28 2020-07-21 Qualcomm Incorporated Narrowband time-division duplex frame structure for narrowband communications
CN110521259B (zh) * 2017-03-09 2020-11-20 Oppo广东移动通信有限公司 信息发送方法及装置、信息接收方法及装置以及存储介质
CN113708911B (zh) * 2018-05-10 2023-04-07 中兴通讯股份有限公司 信号的发送方法及装置、存储介质、电子装置
CN112087798A (zh) * 2019-06-14 2020-12-15 普天信息技术有限公司 一种电力通信网的下行两天线导频发送方法和装置
CN112260811B (zh) * 2020-10-17 2022-12-06 西安交通大学深圳研究院 一种多输入多输出正交频分多路复用系统的导频分配方法
CN113765837B (zh) * 2021-11-09 2022-02-11 湖南省时空基准科技有限公司 窄带数据广播的调制方法与系统、设备及存储介质

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2262151B1 (en) * 2000-07-05 2017-10-04 Sony Deutschland Gmbh Pilot pattern design for multiple antennas in an OFDM system
US7227905B2 (en) * 2001-09-18 2007-06-05 Lucent Technologies Inc. Open-loop diversity technique for systems employing multi-transmitter antennas
US7248559B2 (en) * 2001-10-17 2007-07-24 Nortel Networks Limited Scattered pilot pattern and channel estimation method for MIMO-OFDM systems
US7020110B2 (en) * 2002-01-08 2006-03-28 Qualcomm Incorporated Resource allocation for MIMO-OFDM communication systems
JP3735080B2 (ja) * 2002-04-09 2006-01-11 パナソニック モバイルコミュニケーションズ株式会社 Ｏｆｄｍ通信装置およびｏｆｄｍ通信方法
KR100922948B1 (ko) * 2004-03-11 2009-10-22 삼성전자주식회사 상향링크 직교주파수분할다중접속 시스템을 위한 파일럿설계 방법
CN1951050B (zh) * 2004-03-15 2013-10-30 苹果公司 用于具有四根发射天线的ofdm系统的导频设计
KR101053610B1 (ko) * 2004-06-25 2011-08-03 엘지전자 주식회사 Ｏｆｄｍ／ｏｆｄｍａ 시스템의 무선자원 할당 방법
KR100698770B1 (ko) * 2005-03-09 2007-03-23 삼성전자주식회사 광대역 무선통신시스템에서 시공간 부호화 데이터의 부반송파 사상 장치 및 방법
US9143305B2 (en) 2005-03-17 2015-09-22 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US20060280113A1 (en) 2005-06-10 2006-12-14 Huo David D Method and apparatus for dynamic allocation of pilot symbols
KR100880991B1 (ko) * 2005-06-16 2009-02-03 삼성전자주식회사 이동통신 시스템에서 다중 안테나를 이용한 파일럿 송수신장치 및 방법
US8169994B2 (en) * 2005-07-27 2012-05-01 Rockstar Bidco Lp System and method for frequency division multiple access communications
EP1929684A4 (en) * 2005-08-23 2010-05-19 Nortel Networks Ltd ADAPTIVE TWO-DIMENSIONAL CHANNEL INTERPOLATION
CN101313548B (zh) * 2005-09-27 2013-06-05 诺基亚公司 用于在多载波系统的传输内布置导频序列的方法和装置
JP5113085B2 (ja) * 2006-02-21 2013-01-09 クゥアルコム・インコーポレイテッド 無線通信のマルチプル多重化方式をサポートする方法及び装置
TWI433484B (zh) * 2006-02-22 2014-04-01 Koninkl Philips Electronics Nv 具相等功率傳輸的非對稱波束形成方法、裝置及系統
US7974176B2 (en) * 2006-02-28 2011-07-05 Atc Technologies, Llc Systems, methods and transceivers for wireless communications over discontiguous spectrum segments
JP4649353B2 (ja) * 2006-03-17 2011-03-09 株式会社東芝 Ｏｆｄｍ信号の送信方法、ｏｆｄｍ送信機及びｏｆｄｍ受信機
EP2642675B1 (en) 2006-03-20 2018-03-14 Fujitsu Limited Base station, mobile station, and MIMO-OFDM communication method thereof
EP1901444B1 (en) 2006-09-15 2009-03-11 NTT DoCoMo Inc. Pilot overhead reduction in wireless communication systems utilizing multiple transmit antennas
CN101529789B (zh) * 2006-10-24 2014-04-09 高通股份有限公司 无线通信系统的帧结构
JP2010508788A (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探索のための方法および装置
US8130867B2 (en) 2007-01-05 2012-03-06 Qualcomm Incorporated Pilot design for improved channel and interference estimation
US8077801B2 (en) 2007-01-10 2011-12-13 Qualcomm Incorporated Pilot structure with multiplexed unicast and SFN transmissions
EP2120377A1 (en) 2007-02-09 2009-11-18 Sharp Kabushiki Kaisha Ofdm transmitter and ofdm receiver
US7889801B2 (en) 2007-02-14 2011-02-15 Telefonaktiebolaget L M Ericsson (Publ) Multi transmit antenna synchronization channel transmission cell ID detection
WO2008103317A2 (en) * 2007-02-16 2008-08-28 Interdigital Technology Corporation Precoded pilot transmission for multi-user and single user mimo communications
JP2008245128A (ja) * 2007-03-28 2008-10-09 Toshiba Corp Ｏｆｄｍを用いた無線送信装置と方法及び無線受信装置と方法
KR101520667B1 (ko) 2007-09-10 2015-05-18 엘지전자 주식회사 다중 안테나 시스템에서의 파일럿 부반송파 할당 방법
US8811331B2 (en) * 2008-04-10 2014-08-19 Telefonaktiebolaget L M Ericsson (Publ) Pilot design using costas arrays

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