ATE301350T1 - Verfahren und vorrichtung zur übertragung mit mehreren antennen - Google Patents

Verfahren und vorrichtung zur übertragung mit mehreren antennen

Info

Publication number
ATE301350T1
ATE301350T1 AT00917061T AT00917061T ATE301350T1 AT E301350 T1 ATE301350 T1 AT E301350T1 AT 00917061 T AT00917061 T AT 00917061T AT 00917061 T AT00917061 T AT 00917061T AT E301350 T1 ATE301350 T1 AT E301350T1
Authority
AT
Austria
Prior art keywords
beams
antennas
antenna array
transmission
transmitting
Prior art date
Application number
AT00917061T
Other languages
English (en)
Inventor
Ilkka Keskitalo
Juha Ylitalo
Marcos Katz
Original Assignee
Nokia 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 Nokia Corp filed Critical Nokia Corp
Application granted granted Critical
Publication of ATE301350T1 publication Critical patent/ATE301350T1/de

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
    • H04B7/0686—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
    • H04B7/04—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
    • 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
    • H04L1/0618—Space-time coding
    • 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
    • H04B7/0617—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 for beam forming
    • 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
    • H04B7/0645—Variable feedback
    • H04B7/065—Variable contents, e.g. long-term or short-short
    • 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
    • H04B7/0669—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 channel coding between antennas

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
AT00917061T 2000-04-07 2000-04-07 Verfahren und vorrichtung zur übertragung mit mehreren antennen ATE301350T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2000/003137 WO2001078254A1 (en) 2000-04-07 2000-04-07 Multi-antenna transmission method and system

Publications (1)

Publication Number Publication Date
ATE301350T1 true ATE301350T1 (de) 2005-08-15

Family

ID=8163909

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00917061T ATE301350T1 (de) 2000-04-07 2000-04-07 Verfahren und vorrichtung zur übertragung mit mehreren antennen

Country Status (6)

Country Link
US (1) US7403748B1 (de)
EP (1) EP1273108B1 (de)
AT (1) ATE301350T1 (de)
AU (1) AU2000238190A1 (de)
DE (1) DE60021772T2 (de)
WO (1) WO2001078254A1 (de)

Families Citing this family (130)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9917298A (pt) 1999-05-19 2002-02-19 Nokia Networks Oy Método de diversidade de transmissão para um sistema de comunicação sem fio e transmissor e receptor para um sistema de comunicação sem fio
US7139324B1 (en) * 2000-06-02 2006-11-21 Nokia Networks Oy Closed loop feedback system for improved down link performance
US9130810B2 (en) 2000-09-13 2015-09-08 Qualcomm Incorporated OFDM communications methods and apparatus
US7295509B2 (en) 2000-09-13 2007-11-13 Qualcomm, Incorporated Signaling method in an OFDM multiple access system
GB2384652B (en) * 2002-01-29 2005-11-23 Hutchison Whampoa Three G Ip Improved communications with mobile terminals in restricted areas
FR2835984B1 (fr) * 2002-02-11 2006-06-23 Evolium Sas Procede pour ameliorer les performances d'un systeme de radiocommunications mobiles
AU2003234428A1 (en) * 2002-05-13 2003-11-11 Interdigital Technology Corporation Resource allocation to users in slotted code division multiple access systems using beams
FI20021094A0 (fi) * 2002-06-07 2002-06-07 Nokia Corp Yhteyden varmistaminen radiojärjestelmässä
US7010055B2 (en) * 2002-06-27 2006-03-07 Motorola, Inc. System implementing closed loop transmit diversity and method thereof
EP1379020A1 (de) * 2002-07-03 2004-01-07 National University Of Singapore Gerät und Verfahren zur drahtlosen Kommunikation
US8194770B2 (en) 2002-08-27 2012-06-05 Qualcomm Incorporated Coded MIMO systems with selective channel inversion applied per eigenmode
US7002900B2 (en) 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US8134976B2 (en) * 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US7324429B2 (en) 2002-10-25 2008-01-29 Qualcomm, Incorporated Multi-mode terminal in a wireless MIMO system
US8570988B2 (en) 2002-10-25 2013-10-29 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8170513B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Data detection and demodulation for wireless communication systems
US8218609B2 (en) 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
US20040081131A1 (en) 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
US8208364B2 (en) 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US8320301B2 (en) 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US7986742B2 (en) 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
US8169944B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Random access for wireless multiple-access communication systems
US7069052B2 (en) 2002-11-04 2006-06-27 Nokia Corporation Data transmission method in base station of radio system, base station of radio system, and antenna array of base station
DE10251479A1 (de) * 2002-11-05 2004-05-19 Siemens Ag Verfahren zur Schätzung einer Kanalqualität
JP3929388B2 (ja) * 2002-11-11 2007-06-13 松下電器産業株式会社 基地局装置及び通信端末装置
WO2004049596A1 (ja) * 2002-11-26 2004-06-10 Matsushita Electric Industrial Co., Ltd. 通信方法及び送信装置、受信装置
EP2608420B1 (de) * 2003-01-23 2016-06-22 Qualcomm Incorporated Verfahren und Vorrichtung zur Bereitstellung von Übertragungsdiversität in einem drahtlosen Mehrfachzugangs-Drahtloskommunikationssystem
JP2005057497A (ja) 2003-08-04 2005-03-03 Science Univ Of Tokyo 無線伝送制御方法並びに無線受信装置及び無線送信装置
US7120395B2 (en) 2003-10-20 2006-10-10 Nortel Networks Limited MIMO communications
JP2005151369A (ja) * 2003-11-19 2005-06-09 Nec Corp アンテナ選択システム及びその方法並びにそれを用いた無線通信装置
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
SE0400370D0 (sv) 2004-02-13 2004-02-13 Ericsson Telefon Ab L M Adaptive MIMO architecture
KR100651447B1 (ko) * 2004-04-14 2006-11-29 삼성전자주식회사 복수의 안테나들을 사용하는 셀룰러 이동통신 시스템에서의 안테나 재 선택 시스템 및 방법
US9137822B2 (en) 2004-07-21 2015-09-15 Qualcomm Incorporated Efficient signaling over access channel
US9148256B2 (en) 2004-07-21 2015-09-29 Qualcomm Incorporated Performance based rank prediction for MIMO design
US9002299B2 (en) * 2004-10-01 2015-04-07 Cisco Technology, Inc. Multiple antenna processing on transmit for wireless local area networks
KR100909539B1 (ko) * 2004-11-09 2009-07-27 삼성전자주식회사 다중 안테나를 사용하는 광대역 무선 접속 시스템에서 다양한 다중안테나 기술을 지원하기 위한 장치 및 방법
US8179834B2 (en) * 2004-11-19 2012-05-15 Samsung Electronics Co., Ltd. Method and apparatus for adapting downlink wireless transmission between beamforming and transmit diversity on a per mobile station basis
KR100583240B1 (ko) * 2004-11-26 2006-05-25 한국전자통신연구원 디지털 방송 수신 성능 개선을 위한 최적의 빔 선택 방법및 그를 이용한 디지털 방송 수신 장치
US20060268623A1 (en) * 2005-03-09 2006-11-30 Samsung Electronics Co., Ltd. Transmitting/receiving apparatus and method in a closed-loop MIMO system
US9246560B2 (en) 2005-03-10 2016-01-26 Qualcomm Incorporated Systems and methods for beamforming and rate control in a multi-input multi-output communication systems
US9154211B2 (en) 2005-03-11 2015-10-06 Qualcomm Incorporated Systems and methods for beamforming feedback in multi antenna communication systems
US8446892B2 (en) 2005-03-16 2013-05-21 Qualcomm Incorporated Channel structures for a quasi-orthogonal multiple-access communication system
US9461859B2 (en) 2005-03-17 2016-10-04 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9143305B2 (en) 2005-03-17 2015-09-22 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9520972B2 (en) 2005-03-17 2016-12-13 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9184870B2 (en) 2005-04-01 2015-11-10 Qualcomm Incorporated Systems and methods for control channel signaling
US7957351B2 (en) * 2005-04-04 2011-06-07 Qualcomm Incorporated Method and apparatus for management of multi-carrier communications in a wireless communication system
US9408220B2 (en) 2005-04-19 2016-08-02 Qualcomm Incorporated Channel quality reporting for adaptive sectorization
US9036538B2 (en) 2005-04-19 2015-05-19 Qualcomm Incorporated Frequency hopping design for single carrier FDMA systems
US7466749B2 (en) 2005-05-12 2008-12-16 Qualcomm Incorporated Rate selection with margin sharing
CN1870461B (zh) 2005-05-24 2011-06-01 都科摩（北京）通信技术研究中心有限公司 基于随机发射波束成形的mimo系统及其用户调度方法
US8565194B2 (en) 2005-10-27 2013-10-22 Qualcomm Incorporated Puncturing signaling channel for a wireless communication system
US8879511B2 (en) 2005-10-27 2014-11-04 Qualcomm Incorporated Assignment acknowledgement for a wireless communication system
US8611284B2 (en) 2005-05-31 2013-12-17 Qualcomm Incorporated Use of supplemental assignments to decrement resources
US8462859B2 (en) 2005-06-01 2013-06-11 Qualcomm Incorporated Sphere decoding apparatus
US8599945B2 (en) * 2005-06-16 2013-12-03 Qualcomm Incorporated Robust rank prediction for a MIMO system
US8358714B2 (en) 2005-06-16 2013-01-22 Qualcomm Incorporated Coding and modulation for multiple data streams in a communication system
US9179319B2 (en) 2005-06-16 2015-11-03 Qualcomm Incorporated Adaptive sectorization in cellular systems
US8885628B2 (en) 2005-08-08 2014-11-11 Qualcomm Incorporated Code division multiplexing in a single-carrier frequency division multiple access system
KR100629490B1 (ko) * 2005-08-18 2006-09-28 삼성전자주식회사 전송 다이버시티 시스템의 송신장치 및 방법
US20070041457A1 (en) 2005-08-22 2007-02-22 Tamer Kadous Method and apparatus for providing antenna diversity in a wireless communication system
US9209956B2 (en) 2005-08-22 2015-12-08 Qualcomm Incorporated Segment sensitive scheduling
US8644292B2 (en) 2005-08-24 2014-02-04 Qualcomm Incorporated Varied transmission time intervals for wireless communication system
US9136974B2 (en) 2005-08-30 2015-09-15 Qualcomm Incorporated Precoding and SDMA support
US7917100B2 (en) 2005-09-21 2011-03-29 Broadcom Corporation Method and system for a double search user group selection scheme with range in TDD multiuser MIMO downlink transmission
US7515878B2 (en) * 2005-09-21 2009-04-07 Broadcom Corporation Method and system for greedy user group selection with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback
US7630337B2 (en) * 2005-09-21 2009-12-08 Broadcom Corporation Method and system for an improved user group selection scheme with finite-rate channel state information feedback for FDD multiuser MIMO downlink transmission
US7917101B2 (en) * 2005-09-21 2011-03-29 Broadcom Corporation Method and system for a greedy user group selection with range reduction in TDD multiuser MIMO downlink transmission
US8068872B2 (en) * 2005-10-06 2011-11-29 Telefonaktiebolaget Lm Ericsson (Publ) Signaling support for antenna selection using subset lists and subset masks
KR101241881B1 (ko) * 2005-10-26 2013-03-11 엘지전자 주식회사 다중 안테나 시스템에서의 시공간 부호화 방법
US8582509B2 (en) 2005-10-27 2013-11-12 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US9225416B2 (en) 2005-10-27 2015-12-29 Qualcomm Incorporated Varied signaling channels for a reverse link in a wireless communication system
US8477684B2 (en) 2005-10-27 2013-07-02 Qualcomm Incorporated Acknowledgement of control messages in a wireless communication system
US9210651B2 (en) 2005-10-27 2015-12-08 Qualcomm Incorporated Method and apparatus for bootstraping information in a communication system
US8045512B2 (en) 2005-10-27 2011-10-25 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US8693405B2 (en) 2005-10-27 2014-04-08 Qualcomm Incorporated SDMA resource management
US9144060B2 (en) 2005-10-27 2015-09-22 Qualcomm Incorporated Resource allocation for shared signaling channels
US9225488B2 (en) 2005-10-27 2015-12-29 Qualcomm Incorporated Shared signaling channel
US9088384B2 (en) 2005-10-27 2015-07-21 Qualcomm Incorporated Pilot symbol transmission in wireless communication systems
EP1949559B1 (de) * 2005-10-27 2011-08-24 Telecom Italia S.p.A. Verfahren und system zur mehrantennen-kommunikation unter verwendung mehrerer übertragungsarten, diesbezügliche vorrichtung und computerprogrammprodukt
US9172453B2 (en) 2005-10-27 2015-10-27 Qualcomm Incorporated Method and apparatus for pre-coding frequency division duplexing system
US8582548B2 (en) 2005-11-18 2013-11-12 Qualcomm Incorporated Frequency division multiple access schemes for wireless communication
US8831607B2 (en) 2006-01-05 2014-09-09 Qualcomm Incorporated Reverse link other sector communication
EP1843485B1 (de) 2006-03-30 2016-06-08 Sony Deutschland Gmbh MIMO Raummultiplexsystem mit einer dynamischen Fähigkeit zum selektieren einer Antennenstrahlkombination.
US8098212B2 (en) * 2006-08-15 2012-01-17 Cisco Technology, Inc. Method for antenna array partitioning
EP1892852B1 (de) * 2006-08-21 2010-05-19 Sony Deutschland Gmbh Vorrichtung und Verfahren zur Auswahl von Antennen in einem Funkkommunikationssystem
US8335202B2 (en) * 2006-11-20 2012-12-18 Qualcomm Incorporated Sending pilots on secondary channels for improved acquisition and handoff in cellular communication
EP2113145B1 (de) * 2006-11-29 2011-01-19 Telecom Italia S.p.A. Schaltstrahlantennensystem und verfahren mit digital gesteuerter gewichteter hochfrequenz-kombinierung
JP5022017B2 (ja) * 2006-12-15 2012-09-12 株式会社日立製作所 Ｏｆｄｍセルラ無線通信方法、そのシステム及び基地局
US8750811B2 (en) * 2007-03-14 2014-06-10 Google Inc. Method, apparatus and system for phase difference adjustment in transmit diversity
US7720086B2 (en) * 2007-03-19 2010-05-18 Microsoft Corporation Distributed overlay multi-channel media access control for wireless ad hoc networks
US7801238B2 (en) * 2007-03-30 2010-09-21 Alcatel-Lucent Usa Inc. MIMO communication system with user scheduling based on reduced channel state information
KR101346042B1 (ko) * 2007-07-31 2013-12-31 재단법인서울대학교산학협력재단 다중 입/출력 통신 방법 및 이를 이용한 다중 입/출력 통신시스템
US7907677B2 (en) * 2007-08-10 2011-03-15 Intel Corporation Open loop MU-MIMO
EP2232637B1 (de) * 2007-12-19 2017-05-03 Telecom Italia S.p.A. Verfahren und system für antennenkommunikation mit umgeschalteten strahlen
US8085721B2 (en) * 2008-03-10 2011-12-27 Elektrobit Wireless Communications Oy Adaptive transmission method and a base station using the method
US8351521B2 (en) * 2008-03-17 2013-01-08 Qualcomm Incorporated Multi-resolution beamforming based on codebooks in MIMO systems
US8565193B2 (en) 2008-10-16 2013-10-22 Elektrobit Wireless Communications Oy Beam forming method, apparatus and system
US20110222629A1 (en) * 2008-11-20 2011-09-15 Nokia Corporation Pre-coding for downlink control channel
JP5186355B2 (ja) * 2008-12-25 2013-04-17 株式会社Ｋｄｄｉ研究所 通信特性測定装置及び無線端末
CN102365789B (zh) 2009-02-02 2014-06-11 联邦科学技术研究组织 混合自适应天线阵列
US8437361B2 (en) * 2009-03-17 2013-05-07 Cisco Technology, Inc. Adaptive subchannel disabling in beamformed wireless communication systems
WO2010138735A1 (en) 2009-05-27 2010-12-02 At&T Intellectual Property I, L.P. Transmit antenna subset selection for retransmission
EP2499751A4 (de) * 2009-11-09 2014-08-27 Ericsson Telefon Ab L M Verfahren und anordnung zur polarisationseinstellung für orthogonal polarisierte antennen
US8559990B2 (en) * 2010-02-05 2013-10-15 Qualcomm Incorporated Apparatus and method for enabling uplink beamforming transit diversity channel estimation
US9031519B2 (en) * 2010-06-11 2015-05-12 Telefonaktiebolaget L M Ericsson (Publ) Node in a communication system with switchable antenna functions
US8937900B2 (en) 2010-07-20 2015-01-20 Qualcomm Incorporated Enhancing pilot channel transmission in TD-SCDMA multicarrier systems using secondary carrier frequencies
KR20120032777A (ko) * 2010-09-29 2012-04-06 삼성전자주식회사 계층셀 통신 시스템에서 다운링크 빔포밍 벡터 결정 방법 및 장치
JP5432882B2 (ja) * 2010-11-25 2014-03-05 株式会社日立製作所 分散アンテナシステム、分散アンテナ切替方法、基地局装置及びアンテナスイッチ装置
GB2495110B (en) * 2011-09-28 2014-03-19 Toshiba Res Europ Ltd Antenna combining
CN104025469B (zh) * 2011-12-28 2017-09-01 三星电子株式会社 无线通信系统中获取发射波束分集的波束形成方法和装置
KR20140006304A (ko) * 2012-07-03 2014-01-16 한국전자통신연구원 하향링크 데이터 수신 방법 및 이를 이용하는 사물통신 디바이스
WO2014023351A1 (en) * 2012-08-09 2014-02-13 Telefonaktiebolaget L M Ericsson (Publ) Microwave link control
EP2888917A1 (de) * 2012-08-22 2015-07-01 Nokia Solutions and Networks Oy Bestimmung von übertragungsparametern
WO2016115545A2 (en) * 2015-01-16 2016-07-21 Ping Liang Beamforming in a mu-mimo wireless communication system with relays
GB2539722B (en) 2015-06-25 2021-10-13 Airspan Ip Holdco Llc Bearing calculation
GB2539730B (en) 2015-06-25 2021-04-07 Airspan Ip Holdco Llc Node role assignment in networks
GB2539731B (en) 2015-06-25 2021-08-04 Airspan Ip Holdco Llc Quality of service in wireless backhauls
GB2539732A (en) * 2015-06-25 2016-12-28 Airspan Networks Inc A configurable antenna and method of operating such a configurable antenna
GB2539727B (en) 2015-06-25 2021-05-12 Airspan Ip Holdco Llc A configurable antenna and method of operating such a configurable antenna
EP3314963B1 (de) 2015-06-25 2019-04-24 Airspan Networks Inc. Verwaltung externer interferenzen in einem drahtlosen netzwerk
GB2539735A (en) 2015-06-25 2016-12-28 Airspan Networks Inc Sub-sampling antenna elements
GB2539736A (en) 2015-06-25 2016-12-28 Airspan Networks Inc Wireless network configuration using path loss determination between nodes
GB2545697B (en) * 2015-12-22 2020-01-08 Airties Kablosuz Iletism Sanayi Ve Disticaret As Dynamic channel selection and DFS re-entry
US10177445B1 (en) * 2017-07-05 2019-01-08 National Chung Shan Institute Of Science And Technology Communication structure
KR102456783B1 (ko) * 2018-04-16 2022-10-21 삼성전자 주식회사 전자장치 및 그 제어방법
CN110896550A (zh) * 2018-09-12 2020-03-20 索尼公司 用于无线通信的电子设备和方法、计算机可读存储介质
US10638475B2 (en) * 2018-09-12 2020-04-28 Verizon Patent And Licensing Inc. Systems and methods for dynamically adjusting subframes
US12041589B2 (en) 2020-08-17 2024-07-16 Charter Communications Operating, Llc Methods and apparatus for spectrum utilization coordination between wireline backhaul and wireless systems

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69637911D1 (de) * 1995-07-19 2009-06-04 Nec Corp Diversity-Übertragungssystem mit Kodevielfachzugriff
ATE358924T1 (de) * 1998-06-15 2007-04-15 Motorola Inc Verfahren und gerät zur verbesserung der kapazität in einem funkkommunikationssystem
US6067324A (en) 1998-06-30 2000-05-23 Motorola, Inc. Method and system for transmitting and demodulating a communications signal using an adaptive antenna array in a wireless communication system
FI982763A (fi) * 1998-12-21 2000-06-22 Nokia Networks Oy Tiedonsiirtomenetelmä ja radiojärjestelmä
US6775260B1 (en) * 1999-02-25 2004-08-10 Texas Instruments Incorporated Space time transmit diversity for TDD/WCDMA systems
BR9917298A (pt) * 1999-05-19 2002-02-19 Nokia Networks Oy Método de diversidade de transmissão para um sistema de comunicação sem fio e transmissor e receptor para um sistema de comunicação sem fio
KR100689398B1 (ko) * 1999-10-09 2007-03-08 삼성전자주식회사 이동통신시스템에서 폐루프 송신 안테나 다이버시티 장치 및 방법
WO2002032017A1 (en) * 2000-10-11 2002-04-18 Samsung Electronics Co., Ltd. Apparatus and method for controlling transmit antenna array for physical downlink shared channel in a mobile communication system

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EP1273108B1 (de) 2005-08-03
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DE60021772D1 (de) 2005-09-08
AU2000238190A1 (en) 2001-10-23
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