JP5432316B2 - Mimoビーム形成に基づくシングルキャリア周波数分割多元接続システム - Google Patents
Mimoビーム形成に基づくシングルキャリア周波数分割多元接続システム Download PDFInfo
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- JP5432316B2 JP5432316B2 JP2012094911A JP2012094911A JP5432316B2 JP 5432316 B2 JP5432316 B2 JP 5432316B2 JP 2012094911 A JP2012094911 A JP 2012094911A JP 2012094911 A JP2012094911 A JP 2012094911A JP 5432316 B2 JP5432316 B2 JP 5432316B2
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- 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
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- 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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
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- 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
- H04L25/024—Channel estimation channel estimation algorithms
- H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
- H04L25/0248—Eigen-space methods
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
- H04L27/2607—Cyclic extensions
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- 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
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
- H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
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- 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
- H04L5/02—Channels characterised by the type of signal
- H04L5/023—Multiplexing of multicarrier modulation signals
-
- 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
- H04L27/2614—Peak power aspects
-
- 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
- H04L27/2647—Arrangements specific to the receiver only
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Power Engineering (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Description
1.通信のために複数のサブキャリアの一部が送信機および受信機に割り当てられたSC−FDMAシステム。
Claims (10)
- シングルキャリア周波数分割多元アクセス(SC−FDMA)システムにおける多入力多出力(MIMO)通信のための無線送受信ユニット(WTRU)において、
送信のためのデータについて高速フーリエ変換(FFT)を実行して、周波数領域のデータを生成するよう構成されたFFTユニットの第1の集合と、
少なくとも1つのビーム形成行列を示すフィードバックを受信するよう構成された受信機と、
対角行列(D)の逆行列で前記周波数領域のデータをスケーリングし、および、ステアリング行列(V)を前記周波数領域のデータに適用するよう構成されたビーム形成器であって、前記ステアリング行列(V)は、チャンネル行列(H)のエルミート転置および前記チャンネル行列(H)の積によって形成される行列の固有ベクトルからなり、前記対角行列(D)は、前記チャンネル行列(H)および前記チャンネル行列(H)の前記エルミート転置の積の前記固有値の平方根からなる、ビーム形成器と、
送信のために割り当てられたサブキャリア上に、前記周波数領域の送信データをマップするよう構成された複数のサブキャリアマッピングユニットと、
前記割り当てられたサブキャリアにマップされた送信データについて逆高速フーリエ変換(IFFT)を実行して、時間領域の送信データを生成するよう構成されたIFFTユニットの第1の集合と、
前記時間領域の送信データを送信するよう構成された複数の送信アンテナと
を備えたことを特徴とするWTRU。 - 前記フィードバックは、前記ステアリング行列(V)の表示を含むことを特徴とする請求項1に記載のWTRU。
- 前記フィードバックは、前記対角行列(D)の表示を含むことを特徴とする請求項2に記載のWTRU。
- 前記フィードバックは、信号対雑音比(SNR)を含み、スケーリング係数は前記対角行列(D)および雑音変動に基づいて生成されることを特徴とする請求項3に記載のWTRU。
- 送信のために割り当てられた前記サブキャリアは、局在化したサブキャリアのブロックであることを特徴とする請求項1に記載のWTRU。
- シングルキャリア周波数分割多元アクセス(SC−FDMA)システムにおける多入力多出力(MIMO)通信を送信する方法において、
送信のためのデータについて高速フーリエ変換(FFT)を実行して、周波数領域のデータを発生するステップと、
少なくとも1つのビーム形成行列を示すフィードバックを受信するステップと、
対角行列(D)の逆行列で前記周波数領域のデータをスケーリングし、および、ステアリング行列(V)を前記周波数領域のデータに適用するステップであって、前記ステアリング行列(V)は、チャンネル行列(H)のエルミート転置および前記チャンネル行列(H)の積によって形成される行列の固有ベクトルからなり、前記対角行列(D)は、前記チャンネル行列(H)および前記チャンネル行列(H)の前記エルミート転置の積の前記固有値の平方根からなる、ステップと、
前記周波数領域の送信データを、送信のために割り当てられたサブキャリア上にマップするステップと、
前記割り当てられたサブキャリアにマップされた送信データに逆高速フーリエ変換(IFFT)を実行して、時間領域の送信データを生成するステップと、
前記時間領域の送信データを送信するステップと
を備えることを特徴とする方法。 - 前記フィードバックは、前記ステアリング行列(V)の表示を含むことを特徴とする請求項6に記載の方法。
- 前記フィードバックは、前記対角行列(D)の表示を含むことを特徴とする請求項7に記載の方法。
- 前記フィードバックは、信号対雑音比(SNR)を含み、スケーリング係数は前記対角行列(D)および雑音変動に基づいて生成されることを特徴とする請求項8に記載の方法。
- 送信のために割り当てられた前記サブキャリアは、分散したサブキャリアのブロックであることを特徴とする請求項6に記載の方法。
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US72202205P | 2005-09-29 | 2005-09-29 | |
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Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6947748B2 (en) | 2000-12-15 | 2005-09-20 | Adaptix, Inc. | OFDMA with adaptive subcarrier-cluster configuration and selective loading |
US7573851B2 (en) * | 2004-12-07 | 2009-08-11 | Adaptix, Inc. | Method and system for switching antenna and channel assignments in broadband wireless networks |
US8553521B2 (en) * | 2005-09-29 | 2013-10-08 | Interdigital Technology Corporation | MIMO beamforming-based single carrier frequency division multiple access system |
WO2008038110A2 (en) * | 2006-09-29 | 2008-04-03 | Nokia Corporation | Wireless transceiver |
JP5023881B2 (ja) * | 2006-10-03 | 2012-09-12 | 日本電気株式会社 | 移動通信システム、信号転送方法、および受信装置 |
US8130864B1 (en) * | 2007-04-03 | 2012-03-06 | Marvell International Ltd. | System and method of beamforming with reduced feedback |
JP5249227B2 (ja) * | 2007-08-13 | 2013-07-31 | シャープ株式会社 | 基地局装置および無線通信方法 |
GB0720559D0 (en) | 2007-10-19 | 2007-11-28 | Fujitsu Ltd | MIMO wireless communication system |
CN101459495B (zh) | 2007-12-14 | 2011-06-01 | 华为技术有限公司 | 多用户多入多出通信系统、以及发射信号的方法和装置 |
JP5169256B2 (ja) * | 2008-01-30 | 2013-03-27 | 富士通株式会社 | Mimo通信システムおよび送信局 |
US8259828B2 (en) * | 2008-02-12 | 2012-09-04 | Mediatek Inc. | Sub-carrier alignment mechanism for OFDM multi-carrier systems |
WO2009134082A2 (en) * | 2008-04-29 | 2009-11-05 | Electronics And Telecommunications Research Institute | Apparatus and method for transmitting data using multiple antenna for single carrier frequency division multiple access system |
US8063822B2 (en) * | 2008-06-25 | 2011-11-22 | Rockstar Bidco L.P. | Antenna system |
JP2010010966A (ja) * | 2008-06-25 | 2010-01-14 | Sumitomo Electric Ind Ltd | 無線通信装置、及びmimo無線通信における信号送信方法 |
US8891350B2 (en) * | 2008-07-07 | 2014-11-18 | Mediatek Inc. | Method and apparatus of data transmission over guard sub-carriers in multi-carrier OFDM systems |
WO2010006469A1 (zh) * | 2008-07-18 | 2010-01-21 | 上海贝尔阿尔卡特股份有限公司 | 在sc-fdma系统中对多路信号进行交换处理的方法和装置 |
JP5597914B2 (ja) * | 2008-08-04 | 2014-10-01 | パナソニック株式会社 | 回転角度検出装置 |
US9001802B2 (en) | 2008-08-11 | 2015-04-07 | Lg Electronics Inc. | Method and apparatus for transmitting uplink signals using multi-antenna |
KR20100019948A (ko) | 2008-08-11 | 2010-02-19 | 엘지전자 주식회사 | 공간 다중화 기법을 이용한 데이터 전송방법 |
KR20100019929A (ko) * | 2008-08-11 | 2010-02-19 | 엘지전자 주식회사 | Sc-fdma mimo 코드북 설계 방법 |
KR20100019973A (ko) * | 2008-08-11 | 2010-02-19 | 엘지전자 주식회사 | 다중 안테나 시스템에서 다중 부호어의 전송방법 |
CN101771648B (zh) * | 2009-01-06 | 2018-03-23 | 中兴通讯股份有限公司 | 一种多天线信号处理系统及方法 |
KR101644433B1 (ko) | 2009-02-13 | 2016-08-01 | 엘지전자 주식회사 | 4 안테나 시스템에서 상향링크 프리코딩 수행 방법 |
EP2398157B1 (en) | 2009-02-13 | 2019-04-03 | LG Electronics Inc. | Data transmission method and apparatus in multiple antenna system |
EP2420033B1 (en) * | 2009-04-16 | 2013-01-02 | Telefonaktiebolaget LM Ericsson (publ) | Method and receiver for jointly decoding received communication signals using maximum likelihood detection |
US9753884B2 (en) * | 2009-09-30 | 2017-09-05 | Microsoft Technology Licensing, Llc | Radio-control board for software-defined radio platform |
US8948154B2 (en) * | 2010-02-10 | 2015-02-03 | Qualcomm Incorporated | Method and apparatus for sending and receiving a low-complexity transmission in a wireless communication system |
BR112012025271A2 (pt) | 2010-04-07 | 2016-06-21 | Alcatel Lucent | método e aparelho para retroinformar e construir uma matriz de correlação em sistemas de múltiplas entradas e múltiplas saídas |
CN101909034B (zh) * | 2010-06-22 | 2013-08-07 | 北京大学 | 基于单载波频分多址的无源光网络发送、接收方法及系统 |
KR101823188B1 (ko) | 2011-05-04 | 2018-01-29 | 마이크로소프트 테크놀로지 라이센싱, 엘엘씨 | 기지국을 위한 스펙트럼 할당 기법 |
WO2013058442A1 (ko) * | 2011-10-17 | 2013-04-25 | 한국과학기술원 | 완화된 제로 포싱을 기반으로 한 협력 다중 셀 mimo 빔 형성 송신 방법, 순차적 직교 정사영 결합 알고리즘을 이용한 완화된 제로 포싱 송신 빔 형성 방법, 및 상기 형성 방법을 이용한 정보 전송 방법 |
KR101272319B1 (ko) | 2012-01-27 | 2013-06-07 | 한국과학기술원 | 순차적 직교 정사영 결합 알고리즘을 이용한 완화된 제로 포싱 송신 빔 형성 방법, 및 상기 형성 방법을 이용한 정보 전송 방법 |
US9130711B2 (en) * | 2011-11-10 | 2015-09-08 | Microsoft Technology Licensing, Llc | Mapping signals from a virtual frequency band to physical frequency bands |
US8989286B2 (en) | 2011-11-10 | 2015-03-24 | Microsoft Corporation | Mapping a transmission stream in a virtual baseband to a physical baseband with equalization |
CN103139111B (zh) * | 2011-12-01 | 2016-03-30 | 中国移动通信集团公司 | 一种ofdm系统中的低复杂度信号检测方法和设备 |
WO2014169048A1 (en) * | 2013-04-09 | 2014-10-16 | Interdigital Patent Holdings, Inc. | Joint precoding and multivariate backhaul compression for the downlink of cloud radio access networks |
JP2016149584A (ja) * | 2013-06-10 | 2016-08-18 | シャープ株式会社 | 基地局装置、端末装置、無線通信システム、集積回路 |
US9806926B2 (en) | 2013-11-04 | 2017-10-31 | Samsung Electronics Co., Ltd. | Multistage beamforming of multiple-antenna communication system |
WO2015115776A1 (en) * | 2014-01-28 | 2015-08-06 | Samsung Electronics Co., Ltd. | Multistage beamforming of multiple-antenna communication system |
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 |
JP6388344B2 (ja) * | 2015-09-04 | 2018-09-12 | 日本電信電話株式会社 | 無線通信システム |
WO2018141108A1 (en) * | 2017-02-06 | 2018-08-09 | Qualcomm Incorporated | Low peak-to-average power ratio precoded reference signal design for multiple-input, multiple-output transmissions |
TWI618374B (zh) * | 2017-04-21 | 2018-03-11 | 國立臺灣大學 | 束波成型索引空間調變的方法 |
US10644908B2 (en) | 2017-08-29 | 2020-05-05 | Cable Laboratories, Inc | System and methods for multi-level signal transmission |
JP6969446B2 (ja) | 2018-03-01 | 2021-11-24 | 日本電信電話株式会社 | 無線通信システム、無線通信方法および送信装置 |
JPWO2021186699A1 (ja) * | 2020-03-19 | 2021-09-23 | ||
US11510204B1 (en) | 2021-04-30 | 2022-11-22 | Hewlett Packard Enterprise Development Lp | Uplink multi-user transmission beamforming in wireless networks |
EP4170918A1 (en) | 2021-10-19 | 2023-04-26 | Volkswagen Ag | Methods for a communication device for controlling a radiation boundary area, method for a network entity, apparatus, vehicle and computer program |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6094601A (en) * | 1997-10-01 | 2000-07-25 | Digisonix, Inc. | Adaptive control system with efficiently constrained adaptation |
US6850481B2 (en) | 2000-09-01 | 2005-02-01 | Nortel Networks Limited | Channels estimation for multiple input—multiple output, orthogonal frequency division multiplexing (OFDM) system |
KR20030050338A (ko) * | 2001-12-18 | 2003-06-25 | 엘지전자 주식회사 | 가중치 갱신 방법 |
US7020482B2 (en) | 2002-01-23 | 2006-03-28 | Qualcomm Incorporated | Reallocation of excess power for full channel-state information (CSI) multiple-input, multiple-output (MIMO) systems |
KR100906339B1 (ko) | 2002-06-14 | 2009-07-06 | 삼성전자주식회사 | 필드동기의 길이를 가변할 수 있는 단일 반송파 전송 시스템 |
US7613248B2 (en) | 2002-06-24 | 2009-11-03 | Qualcomm Incorporated | Signal processing with channel eigenmode decomposition and channel inversion for MIMO systems |
US7260153B2 (en) * | 2002-09-09 | 2007-08-21 | Mimopro Ltd. | Multi input multi output wireless communication method and apparatus providing extended range and extended rate across imperfectly estimated channels |
US6873606B2 (en) * | 2002-10-16 | 2005-03-29 | Qualcomm, Incorporated | Rate adaptive transmission scheme for MIMO systems |
US20040081131A1 (en) * | 2002-10-25 | 2004-04-29 | Walton Jay Rod | OFDM communication system with multiple OFDM symbol sizes |
US7324429B2 (en) * | 2002-10-25 | 2008-01-29 | Qualcomm, Incorporated | Multi-mode terminal in a wireless MIMO system |
US20040171359A1 (en) | 2003-02-28 | 2004-09-02 | Olav Tirkkonen | Power allocation in a communication system |
US6927728B2 (en) | 2003-03-13 | 2005-08-09 | Motorola, Inc. | Method and apparatus for multi-antenna transmission |
CN1820441B (zh) * | 2003-07-09 | 2013-07-03 | 美国博通公司 | 多天线通信系统内通过射频信号合并和自适应位加载实现数据率最大化的方法 |
US20050063298A1 (en) | 2003-09-02 | 2005-03-24 | Qualcomm Incorporated | Synchronization in a broadcast OFDM system using time division multiplexed pilots |
US7194286B2 (en) * | 2003-09-30 | 2007-03-20 | Lucent Technologies Inc. | Method for optimizing the transmit signal in multiple antenna wireless links |
US7298805B2 (en) | 2003-11-21 | 2007-11-20 | Qualcomm Incorporated | Multi-antenna transmission for spatial division multiple access |
RU2321949C1 (ru) | 2003-12-05 | 2008-04-10 | Самсунг Электроникс Ко., Лтд. | Устройство и способ передачи данных с помощью выбранного собственного вектора в mimo-системе мобильной связи замкнутого контура |
JP4260653B2 (ja) * | 2004-03-01 | 2009-04-30 | 日本電信電話株式会社 | 空間多重伝送用送信装置 |
JP4040588B2 (ja) * | 2004-03-03 | 2008-01-30 | 日本電信電話株式会社 | 空間多重伝送用送信装置 |
JP4604798B2 (ja) * | 2004-05-10 | 2011-01-05 | 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、並びにコンピュータ・プログラム |
GB0414889D0 (en) * | 2004-07-02 | 2004-08-04 | Qinetiq Ltd | Multiple-input multiple-output communications system |
US7583982B2 (en) * | 2004-08-06 | 2009-09-01 | Interdigital Technology Corporation | Method and apparatus to improve channel quality for use in wireless communications systems with multiple-input multiple-output (MIMO) antennas |
JP4388552B2 (ja) | 2004-08-12 | 2009-12-24 | 富士通株式会社 | 受信機、送信装置及び受信方法 |
US7289770B2 (en) * | 2004-09-28 | 2007-10-30 | Intel Corporation | Compact feedback for closed loop MIMO |
US8218615B2 (en) * | 2005-03-29 | 2012-07-10 | Qualcomm Incorporated | Method and apparatus for block-wise decision-feedback equalization for wireless communication |
US7502408B2 (en) * | 2005-04-21 | 2009-03-10 | Broadcom Corporation | RF transceiver having adaptive modulation |
US8102907B2 (en) * | 2005-04-28 | 2012-01-24 | Qualcomm Incorporated | Space-frequency equalization for oversampled received signals |
US20070041457A1 (en) * | 2005-08-22 | 2007-02-22 | Tamer Kadous | Method and apparatus for providing antenna diversity in a wireless communication system |
US8553521B2 (en) | 2005-09-29 | 2013-10-08 | Interdigital Technology Corporation | MIMO beamforming-based single carrier frequency division multiple access system |
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