WO2009035247A2 - Wireless communication system using pilot subcarrier allocation - Google Patents

Wireless communication system using pilot subcarrier allocation Download PDF

Info

Publication number
WO2009035247A2
WO2009035247A2 PCT/KR2008/005313 KR2008005313W WO2009035247A2 WO 2009035247 A2 WO2009035247 A2 WO 2009035247A2 KR 2008005313 W KR2008005313 W KR 2008005313W WO 2009035247 A2 WO2009035247 A2 WO 2009035247A2
Authority
WO
WIPO (PCT)
Prior art keywords
pilot subcarriers
subcarriers
pilot
antenna
frequency domain
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2008/005313
Other languages
English (en)
French (fr)
Other versions
WO2009035247A3 (en
Inventor
Ki Ho Nam
Jin Sam Kwak
Seung Woo Nam
Jin Soo Choi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
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
Priority to JP2010521798A priority Critical patent/JP5138038B2/ja
Priority to CN200880106499.7A priority patent/CN101803256B/zh
Priority to EP08830087A priority patent/EP2171895A4/en
Publication of WO2009035247A2 publication Critical patent/WO2009035247A2/en
Publication of WO2009035247A3 publication Critical patent/WO2009035247A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

Definitions

  • the used subcarriers (used SCs), the pilot subcarriers (Pilot SCs) and the guard subcarriers (Guard SCs) are obtained according to the FFT size, and the subchannel according to the number of transmission antennas is obtained.
  • the used subcarrier is a value excluding a DC subcarrier.

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)
PCT/KR2008/005313 2007-09-10 2008-09-09 Wireless communication system using pilot subcarrier allocation Ceased WO2009035247A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2010521798A JP5138038B2 (ja) 2007-09-10 2008-09-09 多重アンテナシステムにおけるパイロット副搬送波の割当方法
CN200880106499.7A CN101803256B (zh) 2007-09-10 2008-09-09 使用导频子载波分配的无线通信系统
EP08830087A EP2171895A4 (en) 2007-09-10 2008-09-09 CORDLESS COMMUNICATION SYSTEM USING A PILOT SUBSCRIBER ASSIGNMENT

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
KR20070091730 2007-09-10
KR10-2007-0091730 2007-09-10
US2189408P 2008-01-17 2008-01-17
US61/021,894 2008-01-17
US4562408P 2008-04-17 2008-04-17
US61/045,624 2008-04-17
KR10-2008-0078433 2008-08-11
KR1020080078433A KR101520667B1 (ko) 2007-09-10 2008-08-11 다중 안테나 시스템에서의 파일럿 부반송파 할당 방법

Publications (2)

Publication Number Publication Date
WO2009035247A2 true WO2009035247A2 (en) 2009-03-19
WO2009035247A3 WO2009035247A3 (en) 2009-06-04

Family

ID=40694615

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/KR2008/005313 Ceased WO2009035247A2 (en) 2007-09-10 2008-09-09 Wireless communication system using pilot subcarrier allocation
PCT/KR2008/005312 Ceased WO2009035246A2 (en) 2007-09-10 2008-09-09 Wireless communication system using pilot subcarrier allocation

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/005312 Ceased WO2009035246A2 (en) 2007-09-10 2008-09-09 Wireless communication system using pilot subcarrier allocation

Country Status (9)

Country Link
US (4) US8199843B2 (enExample)
EP (2) EP2181514B1 (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) WO2009035247A2 (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110023710A (ko) * 2009-08-28 2011-03-08 엘지전자 주식회사 무선 통신 시스템에서 파일럿 전송 방법 및 장치
JP2013042520A (ja) * 2008-07-04 2013-02-28 Lg Electronics Inc パイロットサブキャリア割当を用いる複数個の送信アンテナを有する無線通信システム
RU2520382C2 (ru) * 2009-09-04 2014-06-27 Интел Корпорейшн Способ и устройство для передачи сигнала ack/nack в системе беспроводной связи
EP2490344A4 (en) * 2009-10-12 2017-05-17 LG Electronics Inc. Wireless communication system for high-speed vehicle travelling over fixed path

Families Citing this family (75)

* 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
WO2005088882A1 (en) * 2004-03-15 2005-09-22 Nortel Netowrks Limited Pilot design for ofdm systems with four transmit antennas
JP4964244B2 (ja) * 2006-09-25 2012-06-27 パナソニック株式会社 無線通信装置およびパイロット配置方法
KR101520667B1 (ko) 2007-09-10 2015-05-18 엘지전자 주식회사 다중 안테나 시스템에서의 파일럿 부반송파 할당 방법
WO2009114478A1 (en) 2008-03-10 2009-09-17 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
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
CN102362443B (zh) 2009-03-23 2015-10-07 Lg电子株式会社 在多天线系统中发射参考信号的方法和设备
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
KR101753585B1 (ko) 2009-08-14 2017-07-04 엘지전자 주식회사 다중 안테나를 지원하는 무선 통신 시스템에서 하향링크 참조신호를 전송하는 방법 및 장치
EP4160973A1 (en) 2009-08-14 2023-04-05 LG Electronics Inc. Method and apparatus for transmitting downlink reference signal in wireless communication system that supports multiple antennas
KR101769364B1 (ko) * 2009-08-27 2017-08-18 엘지전자 주식회사 무선 통신 시스템에서 프레임 구조를 이용하여 신호를 송수신하는 장치 및 방법
EP2346224A1 (en) * 2010-01-13 2011-07-20 Panasonic Corporation Pilot Patterns for OFDM Systems with Four Transmit Antennas
KR101971962B1 (ko) 2010-01-22 2019-08-16 엘지전자 주식회사 다중입출력 무선 통신 시스템에서 하향링크 제어정보를 제공하는 방법 및 장치
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
KR102040336B1 (ko) * 2010-10-01 2019-11-04 인터디지탈 패튼 홀딩스, 인크 다중 안테나들을 통해 파일럿을 송신하기 위한 방법 및 장치
DK2622779T3 (da) * 2010-10-01 2015-04-27 Interdigital Patent Holdings Fremgangsmåde og apparat til at sende pilot fra flere antenner
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
EP2571191A3 (en) * 2011-09-13 2014-11-26 Samsung Electronics Co., Ltd. Method and apparatus for transmitting/receiving data stream in wireless system
GB2494650B (en) * 2011-09-13 2014-02-19 Samsung Electronics Co Ltd Additional data streams for multi-transmitter wireless systems
US9276709B2 (en) 2011-11-08 2016-03-01 Futurewei Technologies, Inc. System and method for interference management in cellular networks
IN2014KN01764A (enExample) * 2012-01-30 2015-10-23 Ericsson Telefon Ab L M
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
JPWO2014024502A1 (ja) * 2012-08-10 2016-07-25 パナソニックＩｐマネジメント株式会社 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
CN105009502B (zh) * 2013-03-11 2018-05-11 华为技术有限公司 在点到多点正交频分复用通信系统中的上行导频结构
US9806865B2 (en) * 2013-08-05 2017-10-31 Lg Electronics Inc. Method and apparatus for transmitting signal from device-to-device terminal in wireless communication system
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
CN105917713B (zh) 2014-09-29 2019-12-17 华为技术有限公司 信道估计方法、通信节点及通信系统
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
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
MY205078A (en) 2015-06-19 2024-10-01 Panasonic Ip Corp America Transmitting method, receiving method, transmitting apparatus, and receiving apparatus
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
CN108370261B (zh) * 2015-12-10 2021-09-10 索尼集团公司 操作蜂窝mimo系统
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
EP3429147B1 (en) 2016-06-20 2024-01-24 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Information transmission method and device
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
CN110474757B (zh) * 2018-05-10 2022-08-12 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
EP1170897B1 (en) * 2000-07-05 2020-01-15 Wi-Fi One Technologies International Limited Pilot pattern design for a STTD scheme 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
WO2005088882A1 (en) * 2004-03-15 2005-09-22 Nortel Netowrks Limited Pilot design for ofdm systems with four transmit antennas
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
WO2007022628A1 (en) * 2005-08-23 2007-03-01 Nortel Networks Limited 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
CA2641934A1 (en) * 2006-02-21 2007-08-30 Qualcomm Incorporated Spatial pilot structure for multi-antenna wireless communication
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
WO2007100774A1 (en) * 2006-02-28 2007-09-07 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
WO2007108080A1 (ja) 2006-03-20 2007-09-27 Fujitsu Limited 基地局およびそのmimo-ofdm通信方法
DE602006005668D1 (de) 2006-09-15 2009-04-23 Ntt Docomo Inc Reduzierung von Pilot-Overhead in einem drahtlosen Kommunikationssystem mit mehreren Sendeantennen
TR201815509T4 (tr) * 2006-10-24 2018-11-21 Qualcomm Inc Kablosuz komünikasyon sistemleri için çerçeve yapıları.
SI2095524T1 (sl) 2006-11-01 2019-02-28 Qualcomm Incorporated Zasnova referenčnega signala za iskanje celice v ortogonalnem brezžičnem komunikacijskem sistemu
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

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None
See also references of EP2171895A4

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013042520A (ja) * 2008-07-04 2013-02-28 Lg Electronics Inc パイロットサブキャリア割当を用いる複数個の送信アンテナを有する無線通信システム
KR20110023710A (ko) * 2009-08-28 2011-03-08 엘지전자 주식회사 무선 통신 시스템에서 파일럿 전송 방법 및 장치
KR101696464B1 (ko) 2009-08-28 2017-01-16 엘지전자 주식회사 무선 통신 시스템에서 파일럿 전송 방법 및 장치
RU2520382C2 (ru) * 2009-09-04 2014-06-27 Интел Корпорейшн Способ и устройство для передачи сигнала ack/nack в системе беспроводной связи
EP2490344A4 (en) * 2009-10-12 2017-05-17 LG Electronics Inc. Wireless communication system for high-speed vehicle travelling over fixed path

Also Published As

Publication number Publication date
WO2009035246A2 (en) 2009-03-19
AU2008297736A1 (en) 2009-03-19
EP2171895A2 (en) 2010-04-07
US20090067534A1 (en) 2009-03-12
BRPI0817069A2 (pt) 2016-10-11
EP2181514B1 (en) 2013-11-06
US20090067522A1 (en) 2009-03-12
US8149934B2 (en) 2012-04-03
EP2181514A2 (en) 2010-05-05
JP2010537548A (ja) 2010-12-02
JP2010539780A (ja) 2010-12-16
MX2010002666A (es) 2010-04-21
KR20090026722A (ko) 2009-03-13
KR101542378B1 (ko) 2015-08-07
JP5138038B2 (ja) 2013-02-06
CN101803256A (zh) 2010-08-11
CN101836385B (zh) 2013-10-30
EP2171895A4 (en) 2011-03-30
CN101803256B (zh) 2014-07-23
US20140146772A1 (en) 2014-05-29
US20120207237A1 (en) 2012-08-16
AU2008297736B2 (en) 2011-09-15
JP5379141B2 (ja) 2013-12-25
CN101836385A (zh) 2010-09-15
EP2181514A4 (en) 2011-03-30
KR20090026723A (ko) 2009-03-13
KR101520667B1 (ko) 2015-05-18
US8675766B2 (en) 2014-03-18
WO2009035247A3 (en) 2009-06-04
US9264271B2 (en) 2016-02-16
US8199843B2 (en) 2012-06-12
WO2009035246A3 (en) 2009-06-04

Similar Documents

Publication Publication Date Title
AU2008297736B2 (en) Wireless communication system using pilot subcarrier allocation
US8126071B2 (en) Wireless communication system with multiple transmission antennas using pilot subcarrier allocation
US8139665B2 (en) Wireless communication system with multiple transmission antennas using pilot subcarrier allocation
JP5480349B2 (ja) 多重アンテナシステムにおけるパイロット副搬送波の割当方法

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200880106499.7

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08830087

Country of ref document: EP

Kind code of ref document: A2

ENP Entry into the national phase

Ref document number: 2010521798

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2008830087

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 644/KOLNP/2010

Country of ref document: IN

NENP Non-entry into the national phase

Ref country code: DE