AR065384A1 - Transmision piloto precodificada para comunicaciones mimo de multiusarios y usario unico - Google Patents

Transmision piloto precodificada para comunicaciones mimo de multiusarios y usario unico

Info

Publication number
AR065384A1
AR065384A1 ARP080100670A ARP080100670A AR065384A1 AR 065384 A1 AR065384 A1 AR 065384A1 AR P080100670 A ARP080100670 A AR P080100670A AR P080100670 A ARP080100670 A AR P080100670A AR 065384 A1 AR065384 A1 AR 065384A1
Authority
AR
Argentina
Prior art keywords
mimo
precodified
multiusary
pilot transmission
user communications
Prior art date
Application number
ARP080100670A
Other languages
English (en)
Inventor
Panayotis Tsantrizos
Allan Y Tsai
Original Assignee
Interdigital Tech 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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of AR065384A1 publication Critical patent/AR065384A1/es

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
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • 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
    • H04B7/0417—Feedback systems
    • 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
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • 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
    • H04B7/0615—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
    • 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
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03343—Arrangements at the transmitter end
    • 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
    • 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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • 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
    • H04B7/0417—Feedback systems
    • H04B7/0421—Feedback systems utilizing implicit feedback, e.g. steered pilot 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals

Landscapes

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

Abstract

Un método y aparato incluyen un esquema de senal de referencia específica para WTRU que provee una transmision de piloto precodificado eficiente y estimacion efectiva de canal usando senales piloto dedicadas. El método es eficiente para un sistemade multiples entradas y salidas (MIMO) tanto para un solo usuario (SU) como para multiples usuarios (MU).
ARP080100670A 2007-02-16 2008-02-18 Transmision piloto precodificada para comunicaciones mimo de multiusarios y usario unico AR065384A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US89027107P 2007-02-16 2007-02-16

Publications (1)

Publication Number Publication Date
AR065384A1 true AR065384A1 (es) 2009-06-03

Family

ID=39710648

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP080100670A AR065384A1 (es) 2007-02-16 2008-02-18 Transmision piloto precodificada para comunicaciones mimo de multiusarios y usario unico

Country Status (5)

Country Link
US (2) US8477863B2 (es)
CN (1) CN201307860Y (es)
AR (1) AR065384A1 (es)
TW (2) TWM335885U (es)
WO (1) WO2008103317A2 (es)

Families Citing this family (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2887383B1 (fr) * 2005-06-21 2007-08-10 Alcatel Sa Systeme de communication par satellites a diversite de station en emission
US7961807B2 (en) * 2007-03-16 2011-06-14 Freescale Semiconductor, Inc. Reference signaling scheme using compressed feedforward codebooks for multi-user, multiple input, multiple output (MU-MIMO) systems
US8020075B2 (en) 2007-03-16 2011-09-13 Apple Inc. Channel quality index feedback reduction for broadband systems
US7809074B2 (en) * 2007-03-16 2010-10-05 Freescale Semiconductor, Inc. Generalized reference signaling scheme for multi-user, multiple input, multiple output (MU-MIMO) using arbitrarily precoded reference signals
MX2009010915A (es) * 2007-04-11 2009-10-29 Ericsson Telefon Ab L M Informacion sobre estructura de señal de referencia para medidas de celda vecina.
CN101291312B (zh) * 2007-04-17 2012-01-11 电信科学技术研究院 一种参考符号处理方法、系统、基站和终端
US8547986B2 (en) 2007-04-30 2013-10-01 Apple Inc. System and method for resource block-specific control signaling
JP4954782B2 (ja) * 2007-05-01 2012-06-20 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及び方法
KR101409115B1 (ko) * 2007-06-08 2014-06-17 엘지전자 주식회사 다중 안테나 시스템에서 가중치 정보 전송 방법
KR101542378B1 (ko) 2007-09-10 2015-08-07 엘지전자 주식회사 다중 안테나 시스템에서의 파일럿 부반송파 할당 방법
KR101399029B1 (ko) * 2007-09-12 2014-06-27 삼성전자주식회사 무선통신시스템에서 파일럿을 전송하기 위한 장치 및 방법
TW200939669A (en) * 2007-10-30 2009-09-16 Koninkl Philips Electronics Nv A method for signalling of reference symbols
JPWO2009090869A1 (ja) * 2008-01-15 2011-05-26 パナソニック株式会社 無線送信装置及び無線送信方法
EP2086190B1 (en) * 2008-01-29 2019-07-24 Telefonaktiebolaget LM Ericsson (publ) Method for determining system information as well as terminal and computer program
EP2099185B1 (en) * 2008-01-29 2017-07-12 Telefonaktiebolaget LM Ericsson (publ) Channel estimation in a terminal of an OFDM-based, cellular telecommunications system
US8270548B2 (en) 2008-01-29 2012-09-18 Telefonaktiebolaget L M Ericsson (Publ) Method for determining system information, and decoder, terminal, and computer program
US8917696B2 (en) * 2008-02-14 2014-12-23 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for communicating to UE an indication of available RS, based on MIMO mode settings
US7978623B1 (en) 2008-03-22 2011-07-12 Freescale Semiconductor, Inc. Channel rank updates in multiple-input multiple-output communication systems
KR20090110497A (ko) * 2008-04-18 2009-10-22 삼성전자주식회사 무선통신시스템에서 파일럿 전송 장치 및 방법
KR101749845B1 (ko) * 2008-04-29 2017-06-21 애플 인크. 다중 안테나 빔 형성 셀룰러 네트워크의 성능 향상
JPWO2010013468A1 (ja) * 2008-07-29 2012-01-05 パナソニック株式会社 無線通信基地局装置、無線通信端末装置および巡回遅延設定方法
US8331310B2 (en) * 2008-08-22 2012-12-11 Qualcomm Incorporated Systems and methods employing multiple input multiple output (MIMO) techniques
KR101495824B1 (ko) * 2008-08-22 2015-02-25 삼성전자주식회사 다중 안테나 무선통신 시스템에서 프리코딩 행렬 선택 방법및 장치
US8675512B2 (en) 2008-09-02 2014-03-18 Commonwealth Scientific And Industrial Research Organisation Fixed multiple access wireless communication
US20100061360A1 (en) * 2008-09-10 2010-03-11 Texas Instruments Incorporated Dedicated reference signal structures for spatial multiplexing beamforming
US8676133B2 (en) * 2008-09-19 2014-03-18 Qualcomm Incorporated Reference signal design for LTE A
US20100097937A1 (en) * 2008-10-16 2010-04-22 Interdigital Patent Holdings, Inc. Method and apparatus for wireless transmit/receive unit specific pilot signal transmission and wireless transmit/receive unit specific pilot signal power boosting
KR101497929B1 (ko) * 2008-11-03 2015-03-03 삼성전자주식회사 멀티-중계기 기반의 다중 입출력 통신 시스템
KR101295382B1 (ko) * 2009-01-07 2013-08-08 엘지전자 주식회사 다중 사용자 다중 입출력 시스템에서 사용자 기기로 파일롯 할당 정보를 전송하는 방법
CN101783700B (zh) * 2009-01-21 2013-03-27 电信科学技术研究院 对上行数据传输的指示方法、上行数据传输方法及装置
GB2467143B (en) * 2009-01-22 2011-04-06 Toshiba Res Europ Ltd Wireless commication method and apparatus
US9344243B2 (en) 2009-03-16 2016-05-17 Blackberry Limited Transmission using common and dedicated pilots
TWI517620B (zh) * 2009-03-17 2016-01-11 皇家飛利浦電子股份有限公司 在多輸入多輸出（ｍｉｍｏ）網路中通信的方法及裝置
CN101841851B (zh) * 2009-03-18 2013-06-12 电信科学技术研究院 一种多小区传输数据的方法及装置
KR101753391B1 (ko) 2009-03-30 2017-07-04 엘지전자 주식회사 무선 통신 시스템에서 신호 전송 방법 및 장치
US8693429B2 (en) 2009-03-31 2014-04-08 Qualcomm Incorporated Methods and apparatus for generation and use of reference signals in a communications system
US8369885B2 (en) * 2009-04-14 2013-02-05 Samsung Electronics Co., Ltd. Multi-user MIMO transmissions in wireless communication systems
US8208434B2 (en) * 2009-04-28 2012-06-26 Motorola Mobility, Inc. Method of signaling particular types of resource elements in a wireless communication system
CN102100045B (zh) 2009-04-28 2014-12-10 华为技术有限公司 数据发送处理方法与装置、数据接收处理方法与装置
CN102439931B (zh) * 2009-04-28 2014-11-05 华为技术有限公司 数据发送处理方法与装置、数据接收处理方法与装置
CN101877689B (zh) * 2009-04-28 2012-10-17 华为技术有限公司 数据发送处理方法与装置、数据接收处理方法与装置
CN101867551B (zh) * 2009-06-03 2015-09-02 开曼群岛威睿电通股份有限公司 多输入多输出正交频分多址技术和前同步码设计
US8842623B2 (en) * 2009-06-26 2014-09-23 Lg Electronics Inc. Method and apparatus for transmitting reference signals in uplink multiple input multiple output (MIMO) transmission
US9094074B2 (en) 2009-07-02 2015-07-28 Qualcomm Incorporated Method and apparatus for communicating antenna port assignments
US8923216B2 (en) * 2009-07-30 2014-12-30 Qualcomm Incorporated Robust decoding of CoMP transmissions
WO2011020227A1 (zh) * 2009-08-17 2011-02-24 上海贝尔股份有限公司 移动通信系统及其中的数据传输方法
KR101573001B1 (ko) 2009-08-24 2015-11-30 삼성전자주식회사 수신기 및 그의 기준 신호 이용 방법
US8948097B2 (en) 2009-09-30 2015-02-03 Qualcomm Incorporated UE-RS sequence initialization for wireless communication systems
US8923905B2 (en) 2009-09-30 2014-12-30 Qualcomm Incorporated Scrambling sequence initialization for coordinated multi-point transmissions
US9432164B2 (en) 2009-10-15 2016-08-30 Qualcomm Incorporated Method and apparatus for reference signal sequence mapping in wireless communication
KR101495624B1 (ko) 2009-10-16 2015-02-25 노키아 솔루션스 앤드 네트웍스 오와이 물리적 신호들을 송신하기 위한 방법 및 장치
KR101559295B1 (ko) 2009-12-04 2015-10-12 삼성전자주식회사 공간 분할 다중 사용자 다중 입력 다중 출력 방식을 이용하는 통신 시스템
CN102347817B (zh) 2010-08-02 2014-01-08 华为技术有限公司 通知参考信号配置信息的方法及设备
CN103763071B (zh) * 2010-08-02 2017-04-12 华为技术有限公司 通知参考信号配置信息的方法及设备
CN103763070B (zh) * 2010-08-02 2015-03-25 华为技术有限公司 通知参考信号配置信息的方法及设备
JP5585306B2 (ja) * 2010-08-25 2014-09-10 ソニー株式会社 基地局、無線通信装置、無線通信システム、無線通信方法およびプログラム
US8442145B2 (en) 2010-12-03 2013-05-14 Industrial Technology Research Institute Transmitting terminal and transmit antenna selecting method thereof
US9559884B2 (en) 2011-02-07 2017-01-31 Intel Corporation Co-phasing of transmissions from multiple infrastructure nodes
BR112013002605B1 (pt) * 2011-02-18 2022-08-23 Sun Patent Trust Método de transmissão, aparelho de transmissão, método de recepção e aparelho de recepção
WO2012153994A2 (ko) * 2011-05-10 2012-11-15 엘지전자 주식회사 복수의 안테나 포트를 이용하여 신호를 전송하는 방법 및 이를 위한 송신단 장치
TWI760318B (zh) 2011-08-12 2022-04-11 美商內數位專利控股公司 使用導頻信號來監控至少一實體控制頻道的方法及裝置
WO2013073557A1 (ja) * 2011-11-15 2013-05-23 シャープ株式会社 通信システム、通信方法、基地局装置及び移動局装置
EP4216454A1 (en) 2012-02-06 2023-07-26 Nippon Telegraph And Telephone Corporation Wireless signal transmitting method and wireless apparatus
US9294179B2 (en) * 2012-02-07 2016-03-22 Google Technology Holdings LLC Gain normalization correction of PMI and COI feedback for base station with antenna array
WO2014180004A1 (zh) * 2013-05-10 2014-11-13 华为技术有限公司 一种信号传输方法及设备
CN105637827B (zh) * 2014-03-25 2019-08-20 华为技术有限公司 导频序列的插入、提取方法和设备
EP3174216B1 (en) * 2014-07-24 2019-12-25 LG Electronics Inc. Method and apparatus for transmitting feedback signals
US10903951B2 (en) * 2015-06-05 2021-01-26 Futurewei Technologies, Inc. Systems and methods for adaptive pilot allocation
CN110049510B (zh) * 2018-01-16 2021-01-15 中国移动通信有限公司研究院 交叉链路干扰测量通知方法、网络侧设备及移动通信终端

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030048753A1 (en) * 2001-08-30 2003-03-13 Ahmad Jalali Method and apparatus for multi-path elimination in a wireless communication system
US8077691B2 (en) 2004-03-05 2011-12-13 Qualcomm Incorporated Pilot transmission and channel estimation for MISO and MIMO receivers in a multi-antenna system
WO2005125044A1 (en) * 2004-06-22 2005-12-29 Nortel Networks Limited Closed loop mimo systems and methods
EP1775977A4 (en) * 2004-08-05 2011-04-06 Mitsubishi Electric Corp BASE STATION, MOBILE COMMUNICATION TERMINAL APPARATUS, AND PRIMARY CELL SELECTION METHOD
US8559295B2 (en) * 2005-08-15 2013-10-15 Motorola Mobility Llc Method and apparatus for pilot signal transmission
WO2007022630A1 (en) * 2005-08-23 2007-03-01 Nortel Networks Limited Methods and systems for ofdm multiple zone partitioning
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
KR100961743B1 (ko) * 2005-12-09 2010-06-07 삼성전자주식회사 다중 홉 중계방식의 광대역 무선 접속통신시스템에서 중계서비스를 지원하기 위한 장치 및 방법
US8705496B2 (en) * 2006-01-19 2014-04-22 Samsung Electronics Co., Ltd Method and apparatus for controlling transmission and reception of dedicated pilots according to MCS level in a wireless communication system
WO2007106980A1 (en) * 2006-03-17 2007-09-27 Nortel Networks Limited Closed-loop mimo systems and methods
CA2648005C (en) * 2006-04-12 2013-01-15 Lg Electronics Inc. Method for allocating reference signals in mimo system
US8259773B2 (en) * 2006-10-31 2012-09-04 Alcatel Lucent Method and apparatus for multiplexing code division multiple access and single carrier frequency division multiple access transmissions
CN102075303B (zh) * 2009-11-25 2014-06-04 华为技术有限公司 导频发送方法和装置

Also Published As

Publication number Publication date
WO2008103317A2 (en) 2008-08-28
CN201307860Y (zh) 2009-09-09
WO2008103317A3 (en) 2008-12-18
US20130294536A1 (en) 2013-11-07
US20080212702A1 (en) 2008-09-04
US8477863B2 (en) 2013-07-02
TWM335885U (en) 2008-07-01
TW200836530A (en) 2008-09-01

Similar Documents

Publication Publication Date Title
AR065384A1 (es) Transmision piloto precodificada para comunicaciones mimo de multiusarios y usario unico
TW200737795A (en) Device and method for performing channel estimation for OFDM-based signals with variable pilot subcarrier spacing
WO2013003218A3 (en) Method and apparatus for enhancing downlink control information transmission
AR072996A1 (es) Correlacion y senalizacion de simbolos de referencia comunes para multiples antenas
WO2010021468A3 (en) Precoding method for reducing uplink papr and apparatus thereof
BRPI0716389A2 (pt) estimaÇço de canal ofdm
AR075865A1 (es) Metodo y aparato para control de potencia de transmision de senal de referencia de sonido (srs)
AR073886A1 (es) Metodo y aparato para una unidad de transmision/recepcion inalambrica para una transmision de senal especifica de pilote y unidad de transmision/recepcion inalambrica para intensificar la potencia de senal especifica de pilote.
WO2010022379A3 (en) Systems and methods employing multiple input multiple output (mimo) techniques
AR072410A1 (es) Multiplexacion mac para mimo de enlace ascendente
AR067232A1 (es) Un conmutador vectorial y conmutador de frecuencia transmisor de diversidad combinado precodificador para una sincronizacion de canal secundario en utra evolucionado
MX2017010816A (es) Sistema de comunicacion inalambrica, y dispositivo y metodo en el sistema de comunicacion inalambrica.
BRPI0600341A (pt) método e aparelho para transmissão e recepção de dados
WO2013022321A3 (en) Method and apparatus for mixed analog/digital beamforming
TW200951405A (en) Methods and apparatuses for generating a pilot pattern for data to be transmitted in an orthogonal frequency-division multiplexing (OFDM) based communication system
AR049428A1 (es) Convertidores de ranura-a-entrelace y de entrelace-a-ranura para un sistema ofdm
WO2016048027A3 (ko) 하향링크 신호 수신 방법 및 사용자기기와, 하향링크 신호 전송 방법 및 기지국
WO2010068029A3 (en) Reference signal transmission method for downlink multiple input multiple output system
WO2010093897A3 (en) Method and apparatus for orthogonal pilot tone mapping in multiple-in and multiple-out (mino) and spatial division multiple access ( sdma) systems
MY189034A (en) Discovery signal design
NZ738983A (en) Reference signal in a communications network
WO2011087614A3 (en) Distortion-aware multiple input multiple output communications
TW200943790A (en) Transmitters, receivers and apparatus and methods for pilot design
EP2536135A4 (en) RADIO BROADCAST SIGNAL TRANSMITTING APPARATUS, RADIO BROADCAST SIGNAL RECEIVING APPARATUS, AND METHOD FOR TRANSMITTING AND RECEIVING A BROADCAST SIGNAL IN A BROADCAST SIGNAL TRANSMITTER RECEIVING APPARATUS
WO2009094135A3 (en) Channel estimation using common and dedicated pilot channels

Legal Events

Date Code Title Description
FG Grant, registration