DE60330092D1 - Drahtlose Kommunikation mit Sende- und Empfangsdiversität - Google Patents

Drahtlose Kommunikation mit Sende- und Empfangsdiversität

Info

Publication number
DE60330092D1
DE60330092D1 DE60330092T DE60330092T DE60330092D1 DE 60330092 D1 DE60330092 D1 DE 60330092D1 DE 60330092 T DE60330092 T DE 60330092T DE 60330092 T DE60330092 T DE 60330092T DE 60330092 D1 DE60330092 D1 DE 60330092D1
Authority
DE
Germany
Prior art keywords
transmit
wireless communication
receive diversity
transmitter
receiver
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.)
Expired - Lifetime
Application number
DE60330092T
Other languages
English (en)
Inventor
Olav Tirkkonen
Mikko Kokkonen
Kari Kalliojrvi
Rinat Kashaev
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.)
Nokia Oyj
Original Assignee
Nokia Oyj
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 Oyj filed Critical Nokia Oyj
Application granted granted Critical
Publication of DE60330092D1 publication Critical patent/DE60330092D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0047—Decoding adapted to other signal detection operation
    • H04L1/0048—Decoding adapted to other signal detection operation in conjunction with detection of multiuser or interfering signals, e.g. iteration between CDMA or MIMO detector and FEC decoder
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0067—Rate matching
    • H04L1/0068—Rate matching by puncturing
    • H04L1/0069—Puncturing patterns
    • 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
    • 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
    • H04L1/0637—Properties of the code
    • H04L1/0662—Limited orthogonality 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
    • H04L5/0001—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
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • 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
    • 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
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041—Arrangements at the transmitter end
    • H04L1/0042—Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape
DE60330092T 2002-05-27 2003-05-27 Drahtlose Kommunikation mit Sende- und Empfangsdiversität Expired - Lifetime DE60330092D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0212165.5A GB0212165D0 (en) 2002-05-27 2002-05-27 A wireless system
US10/349,168 US7773685B2 (en) 2002-05-27 2003-01-23 Transmitting and receiving methods

Publications (1)

Publication Number Publication Date
DE60330092D1 true DE60330092D1 (de) 2009-12-31

Family

ID=9937482

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60330092T Expired - Lifetime DE60330092D1 (de) 2002-05-27 2003-05-27 Drahtlose Kommunikation mit Sende- und Empfangsdiversität

Country Status (4)

Country Link
US (1) US7773685B2 (de)
AT (1) ATE449480T1 (de)
DE (1) DE60330092D1 (de)
GB (1) GB0212165D0 (de)

Families Citing this family (236)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7035661B1 (en) * 1996-10-11 2006-04-25 Arraycomm, Llc. Power control with signal quality estimation for smart antenna communication systems
US7680644B2 (en) 2000-08-04 2010-03-16 Wireless Valley Communications, Inc. Method and system, with component kits, for designing or deploying a communications network which considers frequency dependent effects
US6625454B1 (en) 2000-08-04 2003-09-23 Wireless Valley Communications, Inc. Method and system for designing or deploying a communications network which considers frequency dependent effects
US7295509B2 (en) 2000-09-13 2007-11-13 Qualcomm, Incorporated Signaling method in an OFDM multiple access system
US9130810B2 (en) * 2000-09-13 2015-09-08 Qualcomm Incorporated OFDM communications methods and apparatus
US6973622B1 (en) 2000-09-25 2005-12-06 Wireless Valley Communications, Inc. System and method for design, tracking, measurement, prediction and optimization of data communication networks
EP1540830B9 (de) * 2002-07-30 2009-09-16 IPR Licensing Inc. System und verfahren zur funkkommunikation mit mehreren eingängen und mehreren ausgängen (mimo)
JP3669991B2 (ja) * 2003-02-18 2005-07-13 三星電子株式会社 無線送受信機及び無線送受信方法並びにそのプログラム
JP2004266586A (ja) * 2003-03-03 2004-09-24 Hitachi Ltd 移動通信システムのデータ送受信方法
US7197082B2 (en) * 2003-03-20 2007-03-27 Lucent Technologies Inc. Linear transformation of symbols to at least partially compensate for correlation between antennas in space time block coded systems
US7130580B2 (en) * 2003-03-20 2006-10-31 Lucent Technologies Inc. Method of compensating for correlation between multiple antennas
US7099678B2 (en) * 2003-04-10 2006-08-29 Ipr Licensing, Inc. System and method for transmit weight computation for vector beamforming radio communication
JP4077355B2 (ja) * 2003-04-16 2008-04-16 三菱電機株式会社 通信装置および通信方法
US7746967B2 (en) * 2003-04-30 2010-06-29 Intel Corporation Beam-former and combiner for a multiple-antenna system
WO2004114561A1 (ja) * 2003-06-18 2004-12-29 Nippon Telegraph And Telephone Corporation 無線パケット通信方法および無線パケット通信装置
US7565114B2 (en) * 2003-07-16 2009-07-21 Nec Corporation Transmitter apparatus, receiver apparatus, and radio communication system
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
US7460494B2 (en) * 2003-08-08 2008-12-02 Intel Corporation Adaptive signaling in multiple antenna systems
US7120395B2 (en) * 2003-10-20 2006-10-10 Nortel Networks Limited MIMO communications
US8204149B2 (en) 2003-12-17 2012-06-19 Qualcomm Incorporated Spatial spreading in a multi-antenna communication system
US7302009B2 (en) * 2003-12-17 2007-11-27 Qualcomm Incorporated Broadcast transmission with spatial spreading in a multi-antenna communication system
KR20050065295A (ko) * 2003-12-23 2005-06-29 삼성전자주식회사 보조 심볼을 이용한 시공간 블록 부호 인코딩 방법
KR100981580B1 (ko) * 2003-12-23 2010-09-10 삼성전자주식회사 8 개 이하의 송신 안테나를 사용하는 차등 시공간 블록 부호 송수신 장치
US7336746B2 (en) * 2004-12-09 2008-02-26 Qualcomm Incorporated Data transmission with spatial spreading in a MIMO communication system
WO2005070031A2 (en) * 2004-01-22 2005-08-04 The Regents Of The University Of California Systems and methods for resource allocation of multiple antenna arrays
SE0400370D0 (sv) * 2004-02-13 2004-02-13 Ericsson Telefon Ab L M Adaptive MIMO architecture
US20050180312A1 (en) * 2004-02-18 2005-08-18 Walton J. R. Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system
US8169889B2 (en) 2004-02-18 2012-05-01 Qualcomm Incorporated Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system
US7630349B2 (en) * 2004-03-05 2009-12-08 Ramot At Tel-Aviv University Ltd. Antenna division multiple access
US8422585B2 (en) 2004-04-01 2013-04-16 Research In Motion Limited Space-time block coding systems and methods
EP2173051B1 (de) * 2004-04-01 2014-08-27 BlackBerry Limited Raum-Zeit-Blockkodierungssysteme und -verfahren
US20050238111A1 (en) * 2004-04-09 2005-10-27 Wallace Mark S Spatial processing with steering matrices for pseudo-random transmit steering in a multi-antenna communication system
US8285226B2 (en) * 2004-05-07 2012-10-09 Qualcomm Incorporated Steering diversity for an OFDM-based multi-antenna communication system
US8923785B2 (en) * 2004-05-07 2014-12-30 Qualcomm Incorporated Continuous beamforming for a MIMO-OFDM system
KR20050109789A (ko) * 2004-05-17 2005-11-22 삼성전자주식회사 공간분할다중화/다중입력다중출력 시스템에서의 빔포밍 방법
KR100671231B1 (ko) * 2004-06-21 2007-02-28 삼성전자주식회사 최대 다이버시티 최대 부호율을 갖는 짝수개의 송신안테나를 위한 시공간 블록 부호 장치 및 방법
US7710925B2 (en) * 2004-06-23 2010-05-04 Intel Corporation Spatial puncturing apparatus, method, and system
US7110463B2 (en) * 2004-06-30 2006-09-19 Qualcomm, Incorporated Efficient computation of spatial filter matrices for steering transmit diversity in a MIMO communication system
US7978649B2 (en) 2004-07-15 2011-07-12 Qualcomm, Incorporated Unified MIMO transmission and reception
US8457152B2 (en) * 2004-07-16 2013-06-04 Qualcomm Incorporated Multiple modulation schemes in single rate layering wireless communication systems
US9148256B2 (en) 2004-07-21 2015-09-29 Qualcomm Incorporated Performance based rank prediction for MIMO design
US9137822B2 (en) 2004-07-21 2015-09-15 Qualcomm Incorporated Efficient signaling over access channel
US8019352B2 (en) * 2004-07-23 2011-09-13 Wireless Valley Communications, Inc. System, method, and apparatus for determining and using the position of wireless devices or infrastructure for wireless network enhancements
US8023589B2 (en) * 2004-08-09 2011-09-20 Texas Instruments Incorporated Wireless MIMO transmitter with antenna and tone precoding blocks
US7409001B2 (en) * 2004-08-12 2008-08-05 Nokia Corporation Method and apparatus using coordinate interleaving to increase diversity in a MIMO system
KR101151130B1 (ko) * 2004-08-17 2012-06-04 삼성전자주식회사 완전 다이버시티 완전 데이터 레이트 시공간 블록 부호를 이용한 데이터 송수신 방법 및 장치
US7894548B2 (en) * 2004-09-03 2011-02-22 Qualcomm Incorporated Spatial spreading with space-time and space-frequency transmit diversity schemes for a wireless communication system
US7903753B2 (en) * 2004-09-03 2011-03-08 Electronics And Telecommunications Research Institute Structured space-time code achieving the full diversity and full rate and generating method thereof, and multi-input multi-output system
US7978778B2 (en) * 2004-09-03 2011-07-12 Qualcomm, Incorporated Receiver structures for spatial spreading with space-time or space-frequency transmit diversity
FR2875086B1 (fr) * 2004-09-08 2006-12-15 Comsis Soc Par Actions Simplif Procede de codage et decodage spatio-temporel non coherent par modulation de frequence ; codeur et decodeur mettant en oeuvre un tel procede
US7113129B2 (en) * 2004-09-23 2006-09-26 Interdigital Technology Corporation Blind signal separation using a combination of correlated and uncorrelated antenna elements
US7609780B2 (en) * 2004-09-30 2009-10-27 Intel Corporation Method and apparatus for performing sequential closed loop multiple input multiple output (MIMO)
GB0423567D0 (en) * 2004-10-23 2004-11-24 Koninkl Philips Electronics Nv Mimo system and method of operating a mimo system
KR101023366B1 (ko) * 2004-10-27 2011-03-18 삼성전자주식회사 빔 포밍 방식을 사용하는 다중 입력 다중 출력 무선 통신시스템에서 신호 송수신 장치 및 방법
US20080260053A1 (en) * 2004-11-04 2008-10-23 Samsung Electronics Co., Ltd. Apparatus and method for transmitting and receiving data using space-time block coding
US8130855B2 (en) 2004-11-12 2012-03-06 Interdigital Technology Corporation Method and apparatus for combining space-frequency block coding, spatial multiplexing and beamforming in a MIMO-OFDM system
US7649861B2 (en) * 2004-11-30 2010-01-19 Intel Corporation Multiple antenna multicarrier communication system and method with reduced mobile-station processing
US7822128B2 (en) * 2004-12-03 2010-10-26 Intel Corporation Multiple antenna multicarrier transmitter and method for adaptive beamforming with transmit-power normalization
FR2879865B1 (fr) * 2004-12-16 2008-12-19 Wavecom Sa Procedes et dispositifs de codage et decodage spatial, produit programme d'ordinateur et moyen de stockage correspondants
US7835264B2 (en) * 2004-12-29 2010-11-16 Mitsubishi Denki Kabushiki Kaisha Interleaver, deinterleaver, communication device, and method for interleaving and deinterleaving
US8031793B2 (en) * 2005-01-19 2011-10-04 Dumitru Mihai Ionescu Apparatus using concatenations of signal-space codes for jointly encoding across multiple transmit antennas, and employing coordinate interleaving
US20060203794A1 (en) * 2005-03-10 2006-09-14 Qualcomm Incorporated Systems and methods for beamforming in multi-input multi-output communication systems
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
KR101208520B1 (ko) 2005-03-12 2012-12-05 엘지전자 주식회사 피드백 정보 통신 방법
EP1859542A4 (de) * 2005-03-12 2014-11-19 Lg Electronics Inc Verfahren zum senden von informationen in einem mehrantennensystem
KR100922958B1 (ko) * 2005-03-14 2009-10-22 삼성전자주식회사 다중 사용자 다이버시티를 지원하는 다중 안테나 이동통신시스템에서 사용자 할당장치 및 방법
JPWO2006098111A1 (ja) * 2005-03-14 2008-08-21 日本電気株式会社 無線通信システム、送信装置、送信方法、プログラム、記録媒体
US8446892B2 (en) 2005-03-16 2013-05-21 Qualcomm Incorporated Channel structures for a quasi-orthogonal multiple-access communication system
US9143305B2 (en) 2005-03-17 2015-09-22 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9461859B2 (en) 2005-03-17 2016-10-04 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
US20090213950A1 (en) * 2005-03-17 2009-08-27 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US8340216B2 (en) 2005-03-18 2012-12-25 Qualcomm Incorporated Space-time scrambling for cellular systems
DE602005015768D1 (de) * 2005-03-29 2009-09-10 Thomson Licensing Ngs fountain kodierter signale
US9184870B2 (en) * 2005-04-01 2015-11-10 Qualcomm Incorporated Systems and methods for control channel signaling
WO2006112032A1 (en) * 2005-04-14 2006-10-26 Matsushita Electric Industrial Co., Ltd. Wireless reception apparatus, wireless transmission apparatus, wireless communication system, wireless reception method, wireless transmission method, and wireless communication method
US9036538B2 (en) * 2005-04-19 2015-05-19 Qualcomm Incorporated Frequency hopping design for single carrier FDMA systems
US9408220B2 (en) 2005-04-19 2016-08-02 Qualcomm Incorporated Channel quality reporting for adaptive sectorization
US20060256882A1 (en) * 2005-05-13 2006-11-16 Interdigital Technology Corporation Method and apparatus for adjusting transmission parameters to improve a communication link
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
US9179319B2 (en) * 2005-06-16 2015-11-03 Qualcomm Incorporated Adaptive sectorization in cellular systems
US8599945B2 (en) * 2005-06-16 2013-12-03 Qualcomm Incorporated Robust rank prediction for a MIMO system
US8885628B2 (en) 2005-08-08 2014-11-11 Qualcomm Incorporated Code division multiplexing in a single-carrier frequency division multiple access system
US9209956B2 (en) * 2005-08-22 2015-12-08 Qualcomm Incorporated Segment sensitive scheduling
US20070041457A1 (en) 2005-08-22 2007-02-22 Tamer Kadous Method and apparatus for providing antenna diversity in a wireless communication system
US8644292B2 (en) * 2005-08-24 2014-02-04 Qualcomm Incorporated Varied transmission time intervals for wireless communication system
US20070047495A1 (en) * 2005-08-29 2007-03-01 Qualcomm Incorporated Reverse link soft handoff in a wireless multiple-access communication system
US9136974B2 (en) * 2005-08-30 2015-09-15 Qualcomm Incorporated Precoding and SDMA support
KR101199752B1 (ko) * 2005-09-08 2012-11-08 더 유니버시티 코트 오브 더 유니버시티 오브 에딘버그 복합 무선 통신 시스템 및 그 통신 방법
JP5122461B2 (ja) * 2005-09-14 2013-01-16 インターデイジタル テクノロジー コーポレーション 高スループット端末を保護する方法およびデバイス
US7539458B2 (en) * 2005-10-24 2009-05-26 The Regents Of The University Of California Apparatus and method for a system architecture for multiple antenna wireless communication systems using round robin channel estimation and transmit beam forming algorithms
US8045512B2 (en) 2005-10-27 2011-10-25 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US9144060B2 (en) 2005-10-27 2015-09-22 Qualcomm Incorporated Resource allocation for shared signaling channels
US8477684B2 (en) 2005-10-27 2013-07-02 Qualcomm Incorporated Acknowledgement of control messages in a wireless communication system
US9225416B2 (en) * 2005-10-27 2015-12-29 Qualcomm Incorporated Varied signaling channels for a reverse link in a wireless communication system
US8582509B2 (en) * 2005-10-27 2013-11-12 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US9210651B2 (en) 2005-10-27 2015-12-08 Qualcomm Incorporated Method and apparatus for bootstraping information in a communication system
US8693405B2 (en) * 2005-10-27 2014-04-08 Qualcomm Incorporated SDMA resource management
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
US9172453B2 (en) * 2005-10-27 2015-10-27 Qualcomm Incorporated Method and apparatus for pre-coding frequency division duplexing system
US7917176B2 (en) 2006-02-14 2011-03-29 Nec Laboratories America, Inc. Structured codebook and successive beamforming for multiple-antenna systems
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
JP2009525694A (ja) * 2006-01-31 2009-07-09 ビシーム コミュニケーションズ インコーポレイテッド 直交周波数領域変調システムのための変調及び符号化レベル及び空間速度の選択
KR100923912B1 (ko) * 2006-03-06 2009-10-28 삼성전자주식회사 다중 안테나 시스템에서 스케줄링을 위한 채널 상태 정보피드백 장치 및 방법
US7924775B2 (en) * 2006-03-17 2011-04-12 Samsung Electronics Co., Ltd. Apparatus and method for selecting modulation and filter roll-off to meet power and bandwidth requirements
US8543070B2 (en) 2006-04-24 2013-09-24 Qualcomm Incorporated Reduced complexity beam-steered MIMO OFDM system
US7830840B2 (en) * 2006-04-25 2010-11-09 Samsung Electronics Co., Ltd Apparatus and method for implementing SDMA in multi-user multi-antenna system
JP4924106B2 (ja) 2006-04-27 2012-04-25 ソニー株式会社 無線通信システム、並びに無線通信装置及び無線通信方法
JP4775288B2 (ja) 2006-04-27 2011-09-21 ソニー株式会社 無線通信システム、無線通信装置及び無線通信方法
JP4356756B2 (ja) * 2006-04-27 2009-11-04 ソニー株式会社 無線通信システム、並びに無線通信装置及び無線通信方法
JP4924107B2 (ja) 2006-04-27 2012-04-25 ソニー株式会社 無線通信システム、並びに無線通信装置及び無線通信方法
US8290089B2 (en) * 2006-05-22 2012-10-16 Qualcomm Incorporated Derivation and feedback of transmit steering matrix
US7634235B2 (en) * 2006-05-30 2009-12-15 Broadcom Corporation Method and apparatus to improve closed loop transmit diversity modes performance via interference suppression in a WCDMA network equipped with a rake receiver
DE602006004328D1 (de) * 2006-06-23 2009-01-29 Mitsubishi Electric Inf Tech Verfahren und Vorrichtung zur Bestimmung von Kanalzustandsinformationen welche von einer ersten zu einer zweiten Telekommunikationsvorrichtung zu übertragen sind
KR100714199B1 (ko) * 2006-08-08 2007-05-02 한국전자통신연구원 다중빔 송수신 장치
CN101170335B (zh) * 2006-10-25 2012-08-22 华为技术有限公司 一种多天线无线通信系统中的空时编解码方法及装置
US7995671B2 (en) 2007-02-09 2011-08-09 Qualcomm Incorporated Multiple-input multiple-output (MIMO) transmission with rank-dependent precoding
US7511637B2 (en) * 2007-02-16 2009-03-31 The Mitre Corporation Spreading code derived from weil sequences
US20080212461A1 (en) * 2007-03-01 2008-09-04 Texas Instruments Incorporated Transform-based systems and methods for reconstructing steering matrices in a mimo-ofdm system
KR20080041096A (ko) * 2007-03-13 2008-05-09 엘지전자 주식회사 무선 통신 시스템에서 피드백 정보를 이용한 링크 적응방법
EP1973238B1 (de) * 2007-03-21 2011-03-02 Alcatel Lucent Verfahren zum Bestimmen von MIMO-Übertragungstechniken, Basisstation und mobiles Endgerät
WO2008120925A1 (en) 2007-03-29 2008-10-09 Lg Electronics Inc. Method of transmitting sounding reference signal in wireless communication system
US8130864B1 (en) * 2007-04-03 2012-03-06 Marvell International Ltd. System and method of beamforming with reduced feedback
US20080248802A1 (en) * 2007-04-09 2008-10-09 Tzero Technologies, Inc. Antenna pattern selection within a wireless network
US8599819B2 (en) * 2007-06-19 2013-12-03 Lg Electronics Inc. Method of transmitting sounding reference signal
US8055301B2 (en) * 2007-08-06 2011-11-08 Mitsubishi Electric Research Laboratories, Inc. Wireless networks incorporating implicit antenna selection based on received sounding reference signals
US8086272B2 (en) * 2007-08-06 2011-12-27 Mitsubishi Electric Research Laboratories, Inc. Wireless networks incorporating antenna selection based on received sounding reference signals
EP3860034B1 (de) * 2007-08-08 2023-11-01 Telefonaktiebolaget LM Ericsson (publ) Kanalsondierung unter verwendung verschiedener konfigurationen der kanalsondierungssignale
KR101397039B1 (ko) * 2007-08-14 2014-05-20 엘지전자 주식회사 전송 다이버시티를 사용하는 다중안테나 시스템에서 채널예측 오류의 영향을 감소시키기 위한 ｃｄｍ 방식 신호전송 방법
EP2104986B1 (de) 2007-08-14 2012-10-03 LG Electronics Inc. Verfahren zur gewinnung von ressourcenbereichsinformation für den phich
KR101430267B1 (ko) * 2007-08-14 2014-08-18 엘지전자 주식회사 무선통신시스템에서의 데이터 전송방법
KR101507785B1 (ko) 2007-08-16 2015-04-03 엘지전자 주식회사 다중 입출력 시스템에서, 채널품질정보를 송신하는 방법
KR101405974B1 (ko) 2007-08-16 2014-06-27 엘지전자 주식회사 다중입력 다중출력 시스템에서 코드워드를 전송하는 방법
US7995969B2 (en) * 2008-01-10 2011-08-09 Sony Corporation Millimeter wave power conversion
JP5119977B2 (ja) * 2008-02-28 2013-01-16 富士通株式会社 無線リソースの割当制御装置及び方法並びに無線基地局
US8995590B2 (en) * 2008-03-28 2015-03-31 Qualcomm Incorporated Hardware engine to demod SIMO, MIMO, and SDMA signals
KR101470501B1 (ko) * 2008-08-20 2014-12-08 삼성전자주식회사 양자화된 채널 상태 정보에 기반하여 데이터를 전송하는 장치 및 방법
US20100119017A1 (en) * 2008-11-10 2010-05-13 Joonsuk Kim Method and system for a 4x2 sfbc/stbc system with 2 spatial streams using angle feedback
US8484541B1 (en) * 2008-11-14 2013-07-09 Apple Inc. Configurable encoder for cyclic error correction codes
WO2010098078A1 (ja) * 2009-02-24 2010-09-02 パナソニック株式会社 無線送信装置およびプレコーディング方法
US20100232384A1 (en) * 2009-03-13 2010-09-16 Qualcomm Incorporated Channel estimation based upon user specific and common reference signals
US8599803B1 (en) * 2009-05-01 2013-12-03 Marvell International Ltd. Open loop multiple access for WLAN
JP5585092B2 (ja) * 2009-10-22 2014-09-10 ソニー株式会社 無線伝送システム、無線通信装置
US8831073B2 (en) 2009-08-31 2014-09-09 Sony Corporation Wireless transmission system, wireless communication device, and wireless communication method
JP5672683B2 (ja) 2009-09-29 2015-02-18 ソニー株式会社 無線伝送システム、無線通信装置
US8155166B2 (en) * 2009-09-30 2012-04-10 Mitsubishi Electric Research Laboratories, Inc. Reducing inter-carrier-interference in OFDM networks
US8665697B1 (en) * 2009-12-23 2014-03-04 Kbc Research Foundation Pvt. Ltd. Subchannel formation in OFDMA systems
FR2956938A1 (fr) * 2010-02-26 2011-09-02 Inst Telecom Telecom Bretagne Procede et dispositif de transmission, signal et produits programmes d'ordinateur correspondants.
US9203489B2 (en) 2010-05-05 2015-12-01 Google Technology Holdings LLC Method and precoder information feedback in multi-antenna wireless communication systems
US8976851B2 (en) 2011-05-26 2015-03-10 Cohere Technologies, Inc. Modulation and equalization in an orthonormal time-frequency shifting communications system
US9071286B2 (en) 2011-05-26 2015-06-30 Cohere Technologies, Inc. Modulation and equalization in an orthonormal time-frequency shifting communications system
US10681568B1 (en) 2010-05-28 2020-06-09 Cohere Technologies, Inc. Methods of data channel characterization and uses thereof
US9071285B2 (en) 2011-05-26 2015-06-30 Cohere Technologies, Inc. Modulation and equalization in an orthonormal time-frequency shifting communications system
US10667148B1 (en) 2010-05-28 2020-05-26 Cohere Technologies, Inc. Methods of operating and implementing wireless communications systems
US9444514B2 (en) 2010-05-28 2016-09-13 Cohere Technologies, Inc. OTFS methods of data channel characterization and uses thereof
US11943089B2 (en) 2010-05-28 2024-03-26 Cohere Technologies, Inc. Modulation and equalization in an orthonormal time-shifting communications system
US9130638B2 (en) 2011-05-26 2015-09-08 Cohere Technologies, Inc. Modulation and equalization in an orthonormal time-frequency shifting communications system
KR20120018266A (ko) 2010-08-20 2012-03-02 삼성전자주식회사 직교 주파수 분할 다중 접속 방법을 사용하는 무선 통신 시스템에서 기지국의 전력 증폭기 소모 전력 제어 방법 및 장치
US9031141B2 (en) 2011-05-26 2015-05-12 Cohere Technologies, Inc. Modulation and equalization in an orthonormal time-frequency shifting communications system
EP2642683B1 (de) 2012-03-19 2021-01-20 Alcatel Lucent Verfahren und Vorrichtung zur Ressourcenzuweisung in einem MIMO-System
US10153811B2 (en) * 2012-06-14 2018-12-11 Samsung Electronics Co., Ltd. Communication system with communication-layer maximization mechanism and method of operation thereof
US10003487B2 (en) 2013-03-15 2018-06-19 Cohere Technologies, Inc. Symplectic orthogonal time frequency space modulation system
US9967758B2 (en) 2012-06-25 2018-05-08 Cohere Technologies, Inc. Multiple access in an orthogonal time frequency space communication system
US10090972B2 (en) 2012-06-25 2018-10-02 Cohere Technologies, Inc. System and method for two-dimensional equalization in an orthogonal time frequency space communication system
US9929783B2 (en) 2012-06-25 2018-03-27 Cohere Technologies, Inc. Orthogonal time frequency space modulation system
US10411843B2 (en) 2012-06-25 2019-09-10 Cohere Technologies, Inc. Orthogonal time frequency space communication system compatible with OFDM
US10469215B2 (en) 2012-06-25 2019-11-05 Cohere Technologies, Inc. Orthogonal time frequency space modulation system for the Internet of Things
US9912507B2 (en) 2012-06-25 2018-03-06 Cohere Technologies, Inc. Orthogonal time frequency space communication system compatible with OFDM
US9025458B2 (en) * 2012-10-23 2015-05-05 Verizon Patent And Licensing Inc. Reducing congestion of media delivery over a content delivery network
CN103795489B (zh) * 2012-10-29 2017-05-24 电信科学技术研究院 传输编码指示信息和确定预编码矩阵的方法、系统及设备
US9813262B2 (en) 2012-12-03 2017-11-07 Google Technology Holdings LLC Method and apparatus for selectively transmitting data using spatial diversity
US9591508B2 (en) 2012-12-20 2017-03-07 Google Technology Holdings LLC Methods and apparatus for transmitting data between different peer-to-peer communication groups
US9049058B2 (en) * 2012-12-21 2015-06-02 Broadcom Corporation Fine step blended modulation communications
US9979531B2 (en) 2013-01-03 2018-05-22 Google Technology Holdings LLC Method and apparatus for tuning a communication device for multi band operation
US10229697B2 (en) 2013-03-12 2019-03-12 Google Technology Holdings LLC Apparatus and method for beamforming to obtain voice and noise signals
US9525476B2 (en) * 2013-07-30 2016-12-20 Lg Electronics Inc. Method for performing antenna shuffling using partial antenna array based beamforming in wireless communication system, and apparatus therefor
US9386542B2 (en) 2013-09-19 2016-07-05 Google Technology Holdings, LLC Method and apparatus for estimating transmit power of a wireless device
US9549290B2 (en) 2013-12-19 2017-01-17 Google Technology Holdings LLC Method and apparatus for determining direction information for a wireless device
KR102254342B1 (ko) * 2014-02-13 2021-05-24 삼성전자주식회사 공동 전송 매커니즘을 갖는 컴퓨팅 시스템 및 그것의 동작 방법
US9491007B2 (en) 2014-04-28 2016-11-08 Google Technology Holdings LLC Apparatus and method for antenna matching
US9478847B2 (en) 2014-06-02 2016-10-25 Google Technology Holdings LLC Antenna system and method of assembly for a wearable electronic device
US9379791B2 (en) * 2014-08-01 2016-06-28 Qualcomm Incorporated Multiple input multiple output (MIMO) communication systems and methods for chip to chip and intrachip communication
US9319113B2 (en) 2014-09-19 2016-04-19 Qualcomm Incorporated Simplified multiple input multiple output (MIMO) communication schemes for interchip and intrachip communications
EP3295572A4 (de) 2015-05-11 2018-12-26 Cohere Technologies, Inc. Systeme und verfahren für symplektische orthogonale zeitfrequenzverschiebungsmodulation und übertragung von daten
US10090973B2 (en) 2015-05-11 2018-10-02 Cohere Technologies, Inc. Multiple access in an orthogonal time frequency space communication system
US9866363B2 (en) 2015-06-18 2018-01-09 Cohere Technologies, Inc. System and method for coordinated management of network access points
US10574317B2 (en) 2015-06-18 2020-02-25 Cohere Technologies, Inc. System and method for providing wireless communication services using configurable broadband infrastructure shared among multiple network operators
EP4164152A1 (de) 2015-06-27 2023-04-12 Cohere Technologies, Inc. Ofdm-kompatibles orthogonales zeitfrequenzraum-kommunikationssystem
US10892547B2 (en) 2015-07-07 2021-01-12 Cohere Technologies, Inc. Inconspicuous multi-directional antenna system configured for multiple polarization modes
KR102616669B1 (ko) 2015-07-12 2023-12-21 코히어 테크놀로지스, 아이엔씨. 복수의 협대역 부-반송파 상에서의 직교 시간 주파수 공간 변조
CN108770382B (zh) 2015-09-07 2022-01-14 凝聚技术公司 使用正交时间频率空间调制的多路存取的方法
WO2017087706A1 (en) 2015-11-18 2017-05-26 Cohere Technologies Orthogonal time frequency space modulation techniques
WO2017100666A1 (en) 2015-12-09 2017-06-15 Cohere Technologies Pilot packing using complex orthogonal functions
CN109348739B (zh) 2016-02-25 2022-10-28 凝聚技术公司 用于无线通信的参考信号封装
WO2017165697A1 (en) 2016-03-23 2017-09-28 Cohere Technologies Receiver-side processing of orthogonal time frequency space modulated signals
EP3437418A1 (de) * 2016-03-30 2019-02-06 IDAC Holdings, Inc. Verfahren für erstzugang mittels signaturen
CN109845102B (zh) 2016-03-31 2023-07-28 凝聚技术公司 使用正交时间频率空间调制的导频信号的信道获取
US9667307B1 (en) 2016-03-31 2017-05-30 Cohere Technologies Wireless telecommunications system for high-mobility applications
WO2017173389A1 (en) 2016-04-01 2017-10-05 Cohere Technologies Iterative two dimensional equalization of orthogonal time frequency space modulated signals
KR102250054B1 (ko) 2016-04-01 2021-05-07 코히어 테크널러지스, 아이엔씨. Otfs 통신 시스템에서의 tomlinson-harashima 프리코딩
WO2017201467A1 (en) 2016-05-20 2017-11-23 Cohere Technologies Iterative channel estimation and equalization with superimposed reference signals
RU2728526C2 (ru) * 2016-06-03 2020-07-30 Панасоник Интеллекчуал Проперти Корпорэйшн оф Америка Устройство передачи и способ передачи
EP4362590A2 (de) 2016-08-12 2024-05-01 Cohere Technologies, Inc. Verfahren zum mehrbenutzer-multiplexen orthogonaler zeitfrequenzraumsignale
EP3497799A4 (de) 2016-08-12 2020-04-15 Cohere Technologies, Inc. Iterative mehrstufige entzerrung und decodierung
WO2018032016A1 (en) 2016-08-12 2018-02-15 Cohere Technologies Localized equalization for channels with intercarrier interference
WO2018064587A1 (en) 2016-09-29 2018-04-05 Cohere Technologies Transport block segmentation for multi-level codes
EP3520310B1 (de) 2016-09-30 2021-10-27 Cohere Technologies, Inc. Zuweisung von uplink-benutzerressourcen zur orthogonalen zeitfrequenzraummodulation
WO2018106731A1 (en) 2016-12-05 2018-06-14 Cohere Technologies Fixed wireless access using orthogonal time frequency space modulation
EP3566379A4 (de) 2017-01-09 2020-09-09 Cohere Technologies, Inc. Pilotverschlüsselung zur kanalschätzung
US10356632B2 (en) 2017-01-27 2019-07-16 Cohere Technologies, Inc. Variable beamwidth multiband antenna
US10568143B2 (en) 2017-03-28 2020-02-18 Cohere Technologies, Inc. Windowed sequence for random access method and apparatus
US11817987B2 (en) 2017-04-11 2023-11-14 Cohere Technologies, Inc. Digital communication using dispersed orthogonal time frequency space modulated signals
EP4109983A1 (de) 2017-04-21 2022-12-28 Cohere Technologies, Inc. Kommunikationstechniken unter verwendung von quasi-statischen eigenschaften von drahtlosen kanälen
WO2018200577A1 (en) 2017-04-24 2018-11-01 Cohere Technologies Digital communication using lattice division multiplexing
WO2018200567A1 (en) 2017-04-24 2018-11-01 Cohere Technologies Multibeam antenna designs and operation
WO2019014332A1 (en) 2017-07-12 2019-01-17 Cohere Technologies DATA MODULATION SCHEMES BASED ON TRANSFORMED ZAK
US11546068B2 (en) 2017-08-11 2023-01-03 Cohere Technologies, Inc. Ray tracing technique for wireless channel measurements
WO2019036492A1 (en) 2017-08-14 2019-02-21 Cohere Technologies ASSIGNMENT OF TRANSMISSION RESOURCES BY DIVISION OF BLOCKS OF PHYSICAL RESOURCES
CN111279337B (zh) 2017-09-06 2023-09-26 凝聚技术公司 一种由无线通信接收器装置实现的无线通信方法
US11283561B2 (en) 2017-09-11 2022-03-22 Cohere Technologies, Inc. Wireless local area networks using orthogonal time frequency space modulation
WO2019055861A1 (en) 2017-09-15 2019-03-21 Cohere Technologies, Inc. REALIZING SYNCHRONIZATION IN AN ORTHOGONAL SPACE-FREQUENCY SPACE SIGNAL RECEIVER
US11532891B2 (en) 2017-09-20 2022-12-20 Cohere Technologies, Inc. Low cost electromagnetic feed network
US11152957B2 (en) 2017-09-29 2021-10-19 Cohere Technologies, Inc. Forward error correction using non-binary low density parity check codes
WO2019089986A1 (en) 2017-11-01 2019-05-09 Cohere Technologies, Inc. Precoding in wireless systems using orthogonal time frequency space multiplexing
US11184122B2 (en) 2017-12-04 2021-11-23 Cohere Technologies, Inc. Implementation of orthogonal time frequency space modulation for wireless communications
US11632270B2 (en) 2018-02-08 2023-04-18 Cohere Technologies, Inc. Aspects of channel estimation for orthogonal time frequency space modulation for wireless communications
US11489559B2 (en) 2018-03-08 2022-11-01 Cohere Technologies, Inc. Scheduling multi-user MIMO transmissions in fixed wireless access systems
WO2019241589A1 (en) 2018-06-13 2019-12-19 Cohere Technologies, Inc. Reciprocal calibration for channel estimation based on second-order statistics
US11522600B1 (en) 2018-08-01 2022-12-06 Cohere Technologies, Inc. Airborne RF-head system
WO2020167073A1 (en) * 2019-02-14 2020-08-20 Samsung Electronics Co., Ltd. Position of user equipment

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720712A (en) * 1985-08-12 1988-01-19 Raytheon Company Adaptive beam forming apparatus
US5191594A (en) * 1991-11-27 1993-03-02 The United States Of America As Represented By The United States Department Of Energy Fading channel simulator
EP0931388B1 (de) * 1996-08-29 2003-11-05 Cisco Technology, Inc. Raumzeitliche signalverarbeitung für übertragungssysteme
US6584144B2 (en) * 1997-02-24 2003-06-24 At&T Wireless Services, Inc. Vertical adaptive antenna array for a discrete multitone spread spectrum communications system
US6359923B1 (en) * 1997-12-18 2002-03-19 At&T Wireless Services, Inc. Highly bandwidth efficient communications
JP3917290B2 (ja) * 1998-03-19 2007-05-23 富士通株式会社 収容局側終端装置におけるｓｖｃアクセス方式
US6317466B1 (en) 1998-04-15 2001-11-13 Lucent Technologies Inc. Wireless communications system having a space-time architecture employing multi-element antennas at both the transmitter and receiver
JP4284774B2 (ja) * 1999-09-07 2009-06-24 ソニー株式会社 送信装置、受信装置、通信システム、送信方法及び通信方法
US6351499B1 (en) 1999-12-15 2002-02-26 Iospan Wireless, Inc. Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter
US6865237B1 (en) * 2000-02-22 2005-03-08 Nokia Mobile Phones Limited Method and system for digital signal transmission
US7477703B2 (en) * 2000-02-22 2009-01-13 Nokia Mobile Phones, Limited Method and radio system for digital signal transmission using complex space-time codes
AU2001238646A1 (en) * 2000-02-24 2001-09-03 Tantivy Communications, Inc. Method and system for economical beam forming in a radio communication system
US20020154705A1 (en) * 2000-03-22 2002-10-24 Walton Jay R. High efficiency high performance communications system employing multi-carrier modulation
US6473467B1 (en) * 2000-03-22 2002-10-29 Qualcomm Incorporated Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system
FI20000851A (fi) 2000-04-10 2001-10-11 Nokia Networks Oy Tiedonsiirtomenetelmä ja radiojärjestelmä
US7139324B1 (en) 2000-06-02 2006-11-21 Nokia Networks Oy Closed loop feedback system for improved down link performance
US6985434B2 (en) * 2000-09-01 2006-01-10 Nortel Networks Limited Adaptive time diversity and spatial diversity for OFDM
FI20011357A0 (fi) 2001-06-25 2001-06-25 Nokia Corp Lähetysmenetelmä
EP1195937A1 (de) 2000-10-03 2002-04-10 Telefonaktiebolaget Lm Ericsson Raum-Zeit-Kodierung mit orthogonalen Transformationen
US7499499B2 (en) 2001-06-04 2009-03-03 Alcatel-Lucent Usa Inc. Method for multiple antenna transmission
US20050207505A1 (en) * 2001-12-06 2005-09-22 Ismail Lakkis Systems and methods for recovering bandwidth in a wireless communication network
US7308019B2 (en) * 2002-05-20 2007-12-11 Telefonaktiebolaget Lm Ericsson (Publ) System and method for Fast Walsh Transform processing in a multi-coded signal environment
US6862440B2 (en) * 2002-05-29 2005-03-01 Intel Corporation Method and system for multiple channel wireless transmitter and receiver phase and amplitude calibration

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