JP2016106470A - Mimo−ofdmシステムにおいて空間周波数ブロック符号化、空間多重化、およびビーム形成を組み合わせる方法および装置 - Google Patents
Mimo−ofdmシステムにおいて空間周波数ブロック符号化、空間多重化、およびビーム形成を組み合わせる方法および装置 Download PDFInfo
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Abstract
Description
ここで、UおよびVはユニタリ行列であり、Dは対角行列である。U∈CnRxnRおよびV∈CnTxnTである。次いで、送信シンボルベクトルsに対して、送信事前符号化は単に以下のように実行される。
受信された信号は以下のようになる。
ここでnは、チャネルに発生したノイズである。受信機は、整合フィルタを使用することにより分解を完結する。
固有ビームのチャネルゲインを正規化した後、送信シンボルsの推定は以下のようになる。
または使用せずに様々な組合せで使用されうる。
Claims (3)
- 送信機であって、
4つのアンテナと、
直交周波数分割多重(OFDM)シンボル時間間隔中に、周波数ダイバーシティと空間周波数ブロック符号化との双方を用いて送信するよう構成された回路であり、周波数ダイバーシティについて、少なくとも1つの第1のデータ要素が繰り返され、少なくとも2つの第2のデータ要素を生成し、前記2つの第2のデータ要素が異なるサブキャリアを使用して送信され、空間周波数ブロック符号化について、第3のデータ要素のペアが空間周波数ブロック符号化され、4つの第4のデータ要素を生成し、前記4つの第4のデータ要素が2つのサブキャリアと前記4つのアンテナのうちの2つのみとを用いて送信される、前記回路と、
を備えた、送信機。 - 前記少なくとも1つの第1のデータ要素と前記第3のデータ要素のペアとは同じチャネルのデータに関係している、請求項1に記載の送信機。
- 前記少なくとも1つの第1のデータ要素と前記第3のデータ要素のペアとは異なるデータから導出される、請求項1に記載の送信機。
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US62721004P | 2004-11-12 | 2004-11-12 | |
US60/627,210 | 2004-11-12 | ||
US11/254,358 US8130855B2 (en) | 2004-11-12 | 2005-10-20 | Method and apparatus for combining space-frequency block coding, spatial multiplexing and beamforming in a MIMO-OFDM system |
US11/254,358 | 2005-10-20 |
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JP2014234661A Division JP6491857B2 (ja) | 2004-11-12 | 2014-11-19 | Mimo−ofdmシステムにおいて空間周波数ブロック符号化、空間多重化、およびビーム形成を組み合わせる方法および装置 |
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JP2016106470A true JP2016106470A (ja) | 2016-06-16 |
JP2016106470A5 JP2016106470A5 (ja) | 2016-12-28 |
JP6275754B2 JP6275754B2 (ja) | 2018-02-07 |
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JP2007541235A Active JP5238257B2 (ja) | 2004-11-12 | 2005-11-01 | Mimo−ofdmシステムにおいて空間周波数ブロック符号化、空間多重化、およびビーム形成を組み合わせる方法および装置 |
JP2012201622A Active JP5632432B2 (ja) | 2004-11-12 | 2012-09-13 | Mimo−ofdmシステムにおいて空間周波数ブロック符号化、空間多重化、およびビーム形成を組み合わせる方法および装置 |
JP2014005288A Active JP5886882B2 (ja) | 2004-11-12 | 2014-01-15 | Mimo−ofdmシステムにおいて空間周波数ブロック符号化、空間多重化、およびビーム形成を組み合わせる方法および装置 |
JP2014234661A Active JP6491857B2 (ja) | 2004-11-12 | 2014-11-19 | Mimo−ofdmシステムにおいて空間周波数ブロック符号化、空間多重化、およびビーム形成を組み合わせる方法および装置 |
JP2016001358A Active JP6275754B2 (ja) | 2004-11-12 | 2016-01-06 | Mimo−ofdmシステムにおいて空間周波数ブロック符号化、空間多重化、およびビーム形成を組み合わせる方法および装置 |
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JP2012201622A Active JP5632432B2 (ja) | 2004-11-12 | 2012-09-13 | Mimo−ofdmシステムにおいて空間周波数ブロック符号化、空間多重化、およびビーム形成を組み合わせる方法および装置 |
JP2014005288A Active JP5886882B2 (ja) | 2004-11-12 | 2014-01-15 | Mimo−ofdmシステムにおいて空間周波数ブロック符号化、空間多重化、およびビーム形成を組み合わせる方法および装置 |
JP2014234661A Active JP6491857B2 (ja) | 2004-11-12 | 2014-11-19 | Mimo−ofdmシステムにおいて空間周波数ブロック符号化、空間多重化、およびビーム形成を組み合わせる方法および装置 |
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US (4) | US8130855B2 (ja) |
EP (2) | EP2101435B1 (ja) |
JP (5) | JP5238257B2 (ja) |
KR (6) | KR101313422B1 (ja) |
CN (4) | CN105071847A (ja) |
AU (2) | AU2005306875B2 (ja) |
BR (1) | BRPI0516688A (ja) |
CA (2) | CA2587846C (ja) |
IL (2) | IL183081A0 (ja) |
MX (1) | MX2007005536A (ja) |
NO (1) | NO340390B1 (ja) |
SG (1) | SG170650A1 (ja) |
TW (6) | TW201507384A (ja) |
WO (1) | WO2006055241A2 (ja) |
Families Citing this family (60)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4433867B2 (ja) | 2004-04-28 | 2010-03-17 | ソニー株式会社 | 無線通信システム |
TWI379560B (en) | 2004-08-12 | 2012-12-11 | Interdigital Tech Corp | Method and apparatus for implementing space frequency block coding in an orthogonal frequency division multiplexing wireless communication system |
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 |
US8594207B2 (en) | 2005-10-31 | 2013-11-26 | Motorola Mobility Llc | Method and apparatus for providing channel quality feedback in an orthogonal frequency division multiplexing communication system |
CN100340077C (zh) * | 2005-11-29 | 2007-09-26 | 东南大学 | 多天线无线传输系统中信道环境自适应传输方法 |
US8155597B2 (en) * | 2006-01-10 | 2012-04-10 | Marvell World Trade Ltd. | Transmission scheduling for receiver feedback |
CA2640577C (en) * | 2006-02-02 | 2017-03-21 | Fujitsu Limited | Wireless transmission method, and wireless transmitter and wireless receiver |
US20070211813A1 (en) * | 2006-03-10 | 2007-09-13 | Shilpa Talwar | MIMO precoding in the presence of co-channel interference |
US7787554B1 (en) * | 2006-05-02 | 2010-08-31 | Marvell International Ltd. | Beamforming to a subset of receive antennas in a wireless MIMO communication system |
US8107543B2 (en) * | 2006-06-27 | 2012-01-31 | Amimon Ltd. | High diversity time-space coding and decoding for MIMO systems |
US7680205B2 (en) | 2006-07-28 | 2010-03-16 | Broadcom Corporation | Method and system for transmitter beamforming for reduced complexity multiple input multiple output (MIMO) transceivers |
WO2008021008A2 (en) * | 2006-08-07 | 2008-02-21 | Interdigital Technology Corporation | Method, apparatus and system for implementing multi-user virtual multiple-input multiple-output |
CN101132381B (zh) * | 2006-08-22 | 2010-08-11 | 上海无线通信研究中心 | Mimo-ofdm系统的导频数据发送信道估计方法 |
CN1917498B (zh) * | 2006-09-08 | 2010-05-12 | 清华大学 | 克服ofdm截取位置漂移的空频分组码相位补偿方法 |
US20080080434A1 (en) * | 2006-09-28 | 2008-04-03 | Guy Wolf | Method and apparatus of system scheduler |
US7702029B2 (en) * | 2006-10-02 | 2010-04-20 | Freescale Semiconductor, Inc. | MIMO precoding enabling spatial multiplexing, power allocation and adaptive modulation and coding |
KR100929088B1 (ko) | 2006-11-07 | 2009-11-30 | 삼성전자주식회사 | 무선 이동 통신 시스템에서 전송 모드 결정 장치 및 방법 |
US20080139153A1 (en) * | 2006-12-12 | 2008-06-12 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | Antenna configuration selection using outdated channel state information |
IL180537A0 (en) * | 2007-01-04 | 2007-12-03 | Runcom Technologies Ltd | Mimo communication system and method |
US8077796B2 (en) * | 2007-03-05 | 2011-12-13 | Intel Corporation | Methods and arrangements for communicating in a multiple input multiple output system |
US8831116B2 (en) | 2007-03-20 | 2014-09-09 | Motorola Mobility Llc | Method and apparatus for providing channel quality and precoding metric feedback in an orthogonal frequency division multiplexing communication system |
KR100840618B1 (ko) * | 2007-04-23 | 2008-06-24 | 한국전자통신연구원 | 폐루프 전송 방법 및 장치 |
US8019016B1 (en) | 2007-04-27 | 2011-09-13 | Marvell International Ltd. | System and method of transmit beam selection |
US8208574B2 (en) * | 2007-05-08 | 2012-06-26 | Interdigital Technology Corporation | Method and apparatus for reducing interference in space frequency block coding communication |
US8379749B2 (en) * | 2007-06-19 | 2013-02-19 | Ntt Docomo, Inc. | Transmitter and transmission method |
KR101365565B1 (ko) * | 2007-08-08 | 2014-02-21 | 포항공과대학교 산학협력단 | 공간 주파수 블록 부호화 신호 처리 시스템 |
US8798183B2 (en) * | 2007-08-13 | 2014-08-05 | Qualcomm Incorporated | Feedback and rate adaptation for MIMO transmission in a time division duplexed (TDD) communication system |
CN101796880B (zh) * | 2007-08-31 | 2015-04-01 | 皇家飞利浦电子股份有限公司 | 增强的多用户传输 |
JPWO2009110240A1 (ja) * | 2008-03-06 | 2011-07-14 | パナソニック株式会社 | 無線受信装置及びフィードバック方法 |
CN102067476B (zh) * | 2008-07-07 | 2013-06-05 | 上海贝尔股份有限公司 | 发送设备、接收设备以及发送和接收方法 |
US8098750B2 (en) | 2008-07-10 | 2012-01-17 | Infineon Technologies Ag | Method and device for transmitting a plurality of data symbols |
KR20100019947A (ko) | 2008-08-11 | 2010-02-19 | 엘지전자 주식회사 | 무선 통신 시스템에서 정보 전송 방법 |
KR101597573B1 (ko) * | 2008-08-11 | 2016-02-25 | 엘지전자 주식회사 | 제어정보의 상향링크 전송 방법 |
KR101646249B1 (ko) * | 2008-08-11 | 2016-08-16 | 엘지전자 주식회사 | 무선 통신 시스템에서 정보 전송 방법 및 장치 |
KR101571566B1 (ko) | 2008-08-11 | 2015-11-25 | 엘지전자 주식회사 | 무선 통신 시스템에서 제어신호 전송 방법 |
KR101603338B1 (ko) | 2008-08-11 | 2016-03-15 | 엘지전자 주식회사 | 무선 통신 시스템에서 정보 전송 방법 및 장치 |
US8274937B2 (en) * | 2008-08-26 | 2012-09-25 | Samsung Electronics Co., Ltd. | Method and apparatus for beamforming in OFDM wireless system |
US8442162B2 (en) | 2008-11-12 | 2013-05-14 | Nec Corporation | Method for QR-MLD demodulation |
EP3113382B1 (en) | 2008-11-14 | 2017-08-30 | Lg Electronics Inc. | Method and apparatus for information transmission in wireless communication system |
WO2010056068A2 (ko) | 2008-11-14 | 2010-05-20 | 엘지전자주식회사 | 무선 통신 시스템에서 신호 전송 방법 및 장치 |
KR20100091876A (ko) | 2009-02-11 | 2010-08-19 | 엘지전자 주식회사 | 다중안테나 전송을 위한 단말 동작 |
CN101944978B (zh) * | 2009-07-03 | 2013-01-16 | 中兴通讯股份有限公司 | 基于lte系统下行发射分集模式的数据解调方法和解调装置 |
TWI562554B (en) * | 2009-12-30 | 2016-12-11 | Sony Corp | Communications system and device using beamforming |
US9407409B2 (en) * | 2010-02-23 | 2016-08-02 | Qualcomm Incorporated | Channel state information reference signals |
US9048907B2 (en) | 2010-03-10 | 2015-06-02 | Alcatel Lucent | Methods for reducing interference in communication systems |
WO2011115532A1 (en) * | 2010-03-16 | 2011-09-22 | Telefonaktiebolaget L M Ericsson (Publ) | Switching between open and closed loop multi-stream transmission |
WO2011161601A1 (en) * | 2010-06-23 | 2011-12-29 | Koninklijke Philips Electronics N.V. | A method for operating a secondary station |
JP5578617B2 (ja) | 2010-10-18 | 2014-08-27 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | 送信方法、送信装置、受信方法および受信装置 |
EP2725860B1 (en) * | 2011-07-29 | 2017-11-08 | Huawei Technologies Co., Ltd. | Resource allocation method and base station in orthogonal frequency division multiplexing system |
US20140301232A1 (en) * | 2011-10-31 | 2014-10-09 | Nec Corporation | Apparatus and method for csi calculation and reporting |
KR101935782B1 (ko) * | 2012-03-29 | 2019-01-08 | 삼성전자주식회사 | 다중 셀룰러 네트워크에서 신호의 송수신 방법 및 장치 |
EP3182610B1 (en) | 2014-10-17 | 2019-09-11 | Huawei Technologies Co., Ltd. | Wireless communication method and system |
WO2017069510A1 (en) * | 2015-10-19 | 2017-04-27 | Samsung Electronics Co., Ltd. | Signal transmitting method, signal receiving method, transmitter and receiver |
US10199742B2 (en) * | 2016-04-19 | 2019-02-05 | Raytheon Company | Passive frequency multiplexer |
WO2017195455A1 (en) | 2016-05-12 | 2017-11-16 | Panasonic Intellectual Property Corporation Of America | Apparatus and method for diversity transmission in a wireless communications system |
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 |
US20210234574A1 (en) * | 2018-08-30 | 2021-07-29 | Nokia Technologies Oy | Frequency time domain channel hardening and overhead reduction |
KR200494991Y1 (ko) | 2020-07-29 | 2022-02-10 | 주식회사 한국가스기술공사 | 휴대용 기밀유지 부재 절단기 |
US11153000B1 (en) * | 2020-11-19 | 2021-10-19 | Qualcomm Incorporated | Multi-factor beam selection for channel shaping |
CN112511471B (zh) * | 2021-02-01 | 2021-05-07 | 中国人民解放军国防科技大学 | 基于空频分组码的信道估计方法、装置、设备及介质 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6041831A (ja) * | 1983-08-17 | 1985-03-05 | Japan Radio Co Ltd | ダイバ−シチ方式 |
JP2002101062A (ja) * | 2000-09-26 | 2002-04-05 | Yrp Kokino Idotai Tsushin Kenkyusho:Kk | マルチキャリア通信システム及び無線受信装置 |
US20040081073A1 (en) * | 2002-10-25 | 2004-04-29 | Walton J. Rodney | Transmit diversity processing for a multi-antenna communication system |
Family Cites Families (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2183140C (en) | 1996-08-12 | 2001-11-20 | Grant Mcgibney | Ofdm timing and frequency recovery system |
DE29824760U1 (de) | 1997-09-16 | 2002-06-13 | At & T Wireless Services Inc | Empfänger für drahtlose Kommunikation |
JPH11308130A (ja) * | 1998-04-17 | 1999-11-05 | Mitsubishi Electric Corp | 干渉波抑圧装置 |
US6298092B1 (en) | 1999-12-15 | 2001-10-02 | Iospan Wireless, Inc. | Methods of controlling communication parameters of wireless systems |
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 |
US7020072B1 (en) * | 2000-05-09 | 2006-03-28 | Lucent Technologies, Inc. | Orthogonal frequency division multiplexing transmit diversity system for frequency-selective fading channels |
US6802035B2 (en) * | 2000-09-19 | 2004-10-05 | Intel Corporation | System and method of dynamically optimizing a transmission mode of wirelessly transmitted information |
US6961388B2 (en) * | 2001-02-01 | 2005-11-01 | Qualcomm, Incorporated | Coding scheme for a wireless communication system |
EP1241824A1 (en) * | 2001-03-14 | 2002-09-18 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Multiplexing method in a multicarrier transmit diversity system |
US6771706B2 (en) * | 2001-03-23 | 2004-08-03 | Qualcomm Incorporated | Method and apparatus for utilizing channel state information in a wireless communication system |
EP1255369A1 (en) | 2001-05-04 | 2002-11-06 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Link adaptation for wireless MIMO transmission schemes |
US6785341B2 (en) | 2001-05-11 | 2004-08-31 | Qualcomm Incorporated | Method and apparatus for processing data in a multiple-input multiple-output (MIMO) communication system utilizing channel state information |
US6751187B2 (en) | 2001-05-17 | 2004-06-15 | Qualcomm Incorporated | Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel transmission |
EP1282245A1 (en) | 2001-07-30 | 2003-02-05 | Telefonaktiebolaget L M Ericsson (Publ) | Channel estimation in a multi carrier transmit diversity system |
US7961589B2 (en) | 2001-09-28 | 2011-06-14 | Intel Corporation | System and related methods for introducing sub-carrier diversity in a wideband communication system |
US6956907B2 (en) * | 2001-10-15 | 2005-10-18 | Qualcomm, Incorporated | Method and apparatus for determining power allocation in a MIMO communication system |
US20030125040A1 (en) * | 2001-11-06 | 2003-07-03 | Walton Jay R. | Multiple-access multiple-input multiple-output (MIMO) communication system |
DE60217706T2 (de) * | 2001-11-10 | 2007-05-16 | Samsung Electronics Co., Ltd., Suwon | Stfbc-kodierungs-/-dekodierungsvorrichtung und -verfahren in einem ofdm-mobilkommunikationssystem |
US8018903B2 (en) | 2001-11-21 | 2011-09-13 | Texas Instruments Incorporated | Closed-loop transmit diversity scheme in frequency selective multipath channels |
US7154936B2 (en) | 2001-12-03 | 2006-12-26 | Qualcomm, Incorporated | Iterative detection and decoding for a MIMO-OFDM system |
US7020110B2 (en) * | 2002-01-08 | 2006-03-28 | Qualcomm Incorporated | Resource allocation for MIMO-OFDM communication systems |
JP2003264527A (ja) | 2002-03-12 | 2003-09-19 | Mega Chips Corp | Ofdm用周波数誤差検出装置、検出方法、および、ofdm用受信装置 |
JP2005525757A (ja) | 2002-05-10 | 2005-08-25 | インターディジタル テクノロジー コーポレイション | サービング無線ネットワークコントローラによるノードbの消去制御を可能にするためのシステム |
US7327800B2 (en) | 2002-05-24 | 2008-02-05 | Vecima Networks Inc. | System and method for data detection in wireless communication systems |
GB0212165D0 (en) * | 2002-05-27 | 2002-07-03 | Nokia Corp | A wireless system |
EP1367760B1 (en) | 2002-05-27 | 2009-11-18 | Nokia Corporation | Transmit/receive diversity wireless communication |
US7184713B2 (en) * | 2002-06-20 | 2007-02-27 | Qualcomm, Incorporated | Rate control for multi-channel communication systems |
US7095709B2 (en) | 2002-06-24 | 2006-08-22 | Qualcomm, Incorporated | Diversity transmission modes for MIMO OFDM communication systems |
US7020446B2 (en) | 2002-07-31 | 2006-03-28 | Mitsubishi Electric Research Laboratories, Inc. | Multiple antennas at transmitters and receivers to achieving higher diversity and data rates in MIMO systems |
US6940917B2 (en) * | 2002-08-27 | 2005-09-06 | Qualcomm, Incorporated | Beam-steering and beam-forming for wideband MIMO/MISO 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 |
US20040121730A1 (en) * | 2002-10-16 | 2004-06-24 | Tamer Kadous | Transmission scheme for multi-carrier MIMO systems |
US6873606B2 (en) | 2002-10-16 | 2005-03-29 | Qualcomm, Incorporated | Rate adaptive transmission scheme for MIMO systems |
JP4602641B2 (ja) | 2002-10-18 | 2010-12-22 | 株式会社エヌ・ティ・ティ・ドコモ | 信号伝送システム、信号伝送方法及び送信機 |
US8320301B2 (en) * | 2002-10-25 | 2012-11-27 | Qualcomm Incorporated | MIMO WLAN system |
KR100511559B1 (ko) | 2002-11-28 | 2005-08-31 | 한국전자통신연구원 | 시변 채널 왜곡 제거 기능을 가지는 주파수 분할 다중시스템에서의 송수신 방법 |
WO2004073275A1 (en) * | 2003-02-13 | 2004-08-26 | Docomo Communications Laboratories Europe Gmbh | Space-time-frequency diversity for multi-carrier systems |
EP1611722B1 (en) | 2003-03-28 | 2017-04-19 | Intel Corporation | System and method for two channel frequency offset estimation of ofdm signals |
US7327795B2 (en) * | 2003-03-31 | 2008-02-05 | Vecima Networks Inc. | System and method for wireless communication systems |
KR100591890B1 (ko) * | 2003-04-01 | 2006-06-20 | 한국전자통신연구원 | 다중 안테나 무선 통신 시스템에서의 적응 송수신 방법 및그 장치 |
KR20120024992A (ko) * | 2003-04-23 | 2012-03-14 | 콸콤 인코포레이티드 | 무선 통신 시스템에서 수행성능을 향상시키는 방법들 및 장치 |
KR100713403B1 (ko) * | 2003-09-30 | 2007-05-04 | 삼성전자주식회사 | 통신 시스템에서 채널 상태에 따른 송신 방식 제어 장치및 방법 |
KR100739679B1 (ko) | 2004-01-05 | 2007-07-13 | 삼성전자주식회사 | 광 기록 정보 저장 매체 및 결함 관리 장치 |
US7408909B2 (en) * | 2004-04-28 | 2008-08-05 | Intel Corporation | Method and apparatus to enable multiple receivers |
KR100754795B1 (ko) * | 2004-06-18 | 2007-09-03 | 삼성전자주식회사 | 직교주파수분할다중 시스템에서 주파수 공간 블록 부호의부호화/복호화 장치 및 방법 |
TWI379560B (en) | 2004-08-12 | 2012-12-11 | Interdigital Tech Corp | Method and apparatus for implementing space frequency block coding in an orthogonal frequency division multiplexing wireless communication system |
US7978778B2 (en) | 2004-09-03 | 2011-07-12 | Qualcomm, Incorporated | Receiver structures for spatial spreading with space-time or space-frequency transmit diversity |
US7545875B2 (en) * | 2004-11-03 | 2009-06-09 | Nokia Corporation | System and method for space-time-frequency coding in a multi-antenna transmission system |
US7848291B2 (en) | 2004-11-05 | 2010-12-07 | Interdigital Technology Corporation | Wireless metropolitan area network architecture for managing network resources and mobility |
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 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6041831A (ja) * | 1983-08-17 | 1985-03-05 | Japan Radio Co Ltd | ダイバ−シチ方式 |
JP2002101062A (ja) * | 2000-09-26 | 2002-04-05 | Yrp Kokino Idotai Tsushin Kenkyusho:Kk | マルチキャリア通信システム及び無線受信装置 |
US20040081073A1 (en) * | 2002-10-25 | 2004-04-29 | Walton J. Rodney | Transmit diversity processing for a multi-antenna communication system |
Non-Patent Citations (3)
Title |
---|
"MIMO Mode Table for 802.11n", IEEE 802.11-04/0553R0, JPN6017002856, May 2004 (2004-05-01) * |
"Partial MAC and PHY Proposal for 802.11n", IEEE 802.11-04/0932R1, JPN6017002860, August 2004 (2004-08-01) * |
"Partial_MAC_and_PHY_Proposal", IEEE 802.11-04/0933R1, JPN6017002853, August 2004 (2004-08-01), pages 38 - 43 * |
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