JP5834105B2 - 無線lanシステムにおける制御情報送信方法及びこれをサポートする装置 - Google Patents
無線lanシステムにおける制御情報送信方法及びこれをサポートする装置 Download PDFInfo
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- 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
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- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
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- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
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- H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
- H04B7/0473—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking constraints in layer or codeword to antenna mapping into account
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- 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
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Description
(項目1)
無線LANシステムにおける制御情報を送信する方法において、
第1の制御情報を循環シフト遅延ダイバーシティビーム形成により送信し;及び、
第2の制御情報を送信する;ことを含み、
前記第1の制御情報は、前記第2の制御情報の複数のターゲットステーションの各々が前記第2の制御情報の受信に必要な情報を含み、
前記第2の制御情報は、ビーム形成され、前記複数のターゲットステーションに送信されることを特徴とする方法。
(項目2)
前記第1の制御情報は、前記複数のターゲットステーションに対して空間多重化されたSDMA(spatail division multiple access)データの送信に所要される送信時間情報をさらに含むことを特徴とする項目1に記載の方法。
(項目3)
前記第2の制御情報は、前記複数のターゲットステーションの各々に対する制御情報を含むことを特徴とする項目1に記載の方法。
(項目4)
前記複数のターゲットステーションの各々に対する前記制御情報は、MCS(modulation and coding scheme)情報、チャネル帯域幅情報、空間ストリーム(spatial stream)個数情報、送信パワー情報のうち少なくともいずれか一つであることを特徴とする項目3に記載の方法。
(項目5)
前記第1の制御情報及び前記第2の制御情報は、第1のフレームを介して送信され、
前記第2の制御情報は、前記第1のフレームの以後に送信される一つ以上の第2のフレーム送信に所要される送信時間情報をさらに含むことを特徴とする項目1に記載の方法。
(項目6)
前記第1の制御情報の送信に割り当てられるOFDM(Orthogonal Frequency Division Multiplexing)シンボル当たり副搬送波の個数は、前記第2の制御情報の送信に割り当てられるOFDMシンボル当たり副搬送波の個数より小さい項目1に記載の方法。
(項目7)
前記共用制御情報の送信に割り当てられるOFDMシンボルの個数は、前記STA−特定制御情報の送信に割り当てられるOFDMシンボルの個数より多い項目6に記載の方法。
(項目8)
前記共用制御情報の以前のOFDMシンボルを介して前記共用制御情報の受信に使われるチャネル推定のための第1のLTF(Long Traning Field)が送信されることをさらに含む項目7に記載の方法。
(項目9)
前記共用制御情報と前記STA−特定制御情報との間のOFDMシンボルを介して前記STA−特定制御情報の受信に使われるチャネル推定のための第2のLTFが送信されることをさらに含む項目7に記載の方法。
(項目10)
前記第2のLTFと前記STA−特定制御情報は、同じプリコーディング行列を用いてビーム形成される項目9に記載の方法。
(項目11)
前記第1の制御情報と前記第2の制御情報は、互いに異なる循環シフトが適用される項目1に記載の方法。
(項目12)
プロセッサ;及び、
前記プロセッサと機能的に連結され、フレームを送信及び受信するトランシーバ;を含み、
前記プロセッサは、第1の制御情報を全方向(omni−directional)に送信し、
第2の制御情報を送信するように設定され、
前記第1の制御情報は、前記第2の制御情報の複数のターゲットステーションの各々が前記第2の制御情報の受信に必要な情報を含み、
前記第2の制御情報は、ビーム形成され、前記複数のターゲットステーションに送信されることを特徴とする無線装置。
ここで、Kは、QPSK正規化(normalization)ファクタであり、K=
L−SIGは、BPSK(Binary Phase Shift Keying)変調を使用し、48個のデータNB副搬送波が割り当てられるため、48ビットを有することができる。1/2コード率(code rate)を有する時、L−SIGの情報ビットの数は24である。
ここで、Kは、QPSK正規化(normalization)ファクタであり、K=
VHTSIG−Bは、VHTSIG−Aと同じ変調、即ち、回転されたBPSKコンステレイションにマッピングされ、一つのOFDMシンボルを使用する。OFDMシンボル当たり52個のデータ副搬送波があるため、1/2コード率を有する時、VHTSIG−Bの情報ビットの数は26になる。
NSTS:時空間ストリーム(space time stream)の個数
NiTx CS:iTX送信チェーンの循環シフト
NiSTS CS:iSTS時空間ストリームの循環シフト
Ntone VHT−SIGA:VHT−SIGAに使われる副搬送波の個数
Ntone VHT−SIGB:VHT−SIGBに使われる副搬送波の個数
NSR:VHTSIG−Bのために使われる送信された信号帯域幅の半分にある副搬送波の個数
βn:位相回転値(phase rotation value)
TSYM:シンボル長さ(symbol duration)
TGI:保護区間長さ(guard interval duration)
PVHTLTF:VHT−LTFマッピング行列
Dk,n、pn、Pk、Qk:EEE802.11n/D11.0の20.3節で与えられるパラメータ
図4には示していないが、PLCPフレームにはHT−SIGがさらに含まれることができる。HT−SIGは、L−SIG以後、またはVHTSIG−A以後に配置されることができる。HT−SIGがさらに含まれると、HT−STFとHT−LTFもさらに含まれることができる。PLCPフレームがL−STAに後方互換性を提供しない場合、L−STF、L−LTF、L−SIGは含まれない。これと関連し、本発明の実施例に係る多様なPLCPフレームフォーマットは、以後にブロック図と共に詳細に説明する。
40MHz帯域幅でVHT−LTFは、一つのOFDMシンボルに次のような周波数領域のシーケンスVHTTで示すことができる。
図7は、本発明の一実施例に係る制御情報送信方法を示すフローチャートである。
Claims (11)
- 無線ローカルエリアネットワーク(WLAN)システムにおける信号送信の方法であって、前記方法は、
ステーションによって、制御情報を含む第1の超高処理率(VHT)信号を生成することと、
前記ステーションによって、制御情報を含む第2のVHT信号を生成することであって、前記第2のVHT信号は、少なくとも1つのターゲットステーションへと送信される、ことと、
前記ステーションによって、前記第1のVHT信号および前記第2のVHT信号を送信することと
を含み、
前記第1のVHT信号は、前記第2のVHT信号がSU−MIMO(Single−User Multiple Input Multiple Output)方式を使用して送信されるかMU−MIMO(Multi−User Multiple Input Multiple Output)方式を使用して送信されるかを指示する指示子を含む、方法。 - 前記第2のVHT信号は、変調およびコーディング方式(MCS)インデックスを含み、前記MCSインデックスは、前記送信するステップにおいて使用されるMCSを指示する、請求項1に記載の方法。
- 前記第2のVHT信号が複数のターゲットステーションに送信されるときに、前記複数のターゲットステーションに送信される信号に異なるスクランブリングコードが適用される、請求項1に記載の方法。
- 前記少なくとも1つのターゲットステーションのうちの1つのターゲットステーションを指示する識別値は、前記第1のVHT信号または前記第2のVHT信号に含まれる、請求項1に記載の方法。
- プリコード化された信号を形成するために、列行列を前記第2のVHT信号に適用することをさらに含み、前記列行列の行の個数は、前記少なくとも1つのターゲットステーションの各々に対する空間ストリームの個数に基づいて決定される、請求項1に記載の方法。
- 前記第1のVHT信号に第1の循環シフトが適用され、前記第2のVHT信号に第2の循環シフトが適用される、請求項1に記載の方法。
- 前記第1のVHT信号は、少なくとも1つのVHTターゲットステーションに対する空間ストリームの個数を指示する、請求項1に記載の方法。
- 前記第1の制御信号は、別のターゲットステーションの少なくとも1つの空間ストリームを指示する指示情報を含む、請求項1に記載の方法。
- 前記指示情報は、別のターゲットステーションの前記少なくとも1つの空間ストリームにより生じた干渉を低減するために使用される、請求項8に記載の方法。
- 無線ローカルエリアネットワーク(WLAN)システムにおける信号送信のための無線装置であって、
前記無線装置は、プロセッサおよびトランシーバを含み、
前記プロセッサは、
制御情報を含む第1の超高処理率(VHT)信号を生成することと、
制御情報を含む第2のVHT信号を生成することであって、前記第2のVHT信号は、少なくとも1つのターゲットステーションへと送信される、ことと
を行うように構成されており、
前記トランシーバは、
前記第1のVHT信号および前記第2のVHT信号を送信するように構成されており、
前記第1のVHT信号は、前記第2のVHT信号がSU−MIMO(Single−User Multiple Input Multiple Output)方式を使用して送信されるかMU−MIMO(Multi−User Multiple Input Multiple Output)方式を使用して送信されるかを指示する指示子を含む、無線装置。 - 無線ローカルエリアネットワーク(WLAN)システムにおける信号送信のための無線装置であって、
前記無線装置は、
制御情報を含む第1の超高処理率(VHT)信号を生成することと、
ステーションにより、制御情報を含む第2のVHT信号を生成することであって、前記第2のVHT信号は、少なくとも1つのターゲットステーションへと送信される、ことと
を行う手段と、
前記第1のVHT信号および前記第2のVHT信号を送信する手段と
を備え、
前記第1のVHT信号は、前記第2のVHT信号がSU−MIMO(Single−User Multiple Input Multiple Output)方式を使用して送信されるかMU−MIMO(Multi−User Multiple Input Multiple Output)方式を使用して送信されるかを指示する指示子を含む、無線装置。
Applications Claiming Priority (18)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24065809P | 2009-09-09 | 2009-09-09 | |
US61/240,658 | 2009-09-09 | ||
US24316009P | 2009-09-17 | 2009-09-17 | |
US61/243,160 | 2009-09-17 | ||
US25963409P | 2009-11-09 | 2009-11-09 | |
US61/259,634 | 2009-11-09 | ||
US30368410P | 2010-02-12 | 2010-02-12 | |
US61/303,684 | 2010-02-12 | ||
US30742910P | 2010-02-23 | 2010-02-23 | |
US61/307,429 | 2010-02-23 | ||
KR10-2010-0022225 | 2010-03-12 | ||
KR1020100022225A KR20110027533A (ko) | 2009-09-09 | 2010-03-12 | 다중 안테나 시스템에서 제어정보 전송 방법 및 장치 |
KR10-2010-0040588 | 2010-04-30 | ||
KR1020100040588A KR20110030272A (ko) | 2009-09-17 | 2010-04-30 | 프레임 전송방법 및 이를 지원하는 장치 |
KR1020100040589A KR20110027539A (ko) | 2009-09-09 | 2010-04-30 | 무선랜 시스템에서의 제어신호 전송방법 및 이를 지원하는 장치 |
KR10-2010-0040589 | 2010-04-30 | ||
US34922010P | 2010-05-28 | 2010-05-28 | |
US61/349,220 | 2010-05-28 |
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Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2491663B1 (en) * | 2009-10-23 | 2015-07-29 | Marvell World Trade Ltd. | Training sequence indication for WLAN |
US8582418B2 (en) | 2009-10-26 | 2013-11-12 | Electronics And Telecommunications Research Institute | Packet mode auto-detection in multi-mode wireless communication system, signal field transmission for the packet mode auto-detection, and gain control based on the packet mode |
EP2529490B1 (en) * | 2010-01-29 | 2016-12-14 | LG Electronics Inc. | Method and apparatus of transmitting a spatial stream for mu - mimo in a wireless local area network system |
EP2701327B1 (en) * | 2011-04-19 | 2024-05-29 | Sun Patent Trust | Pre-coding method and pre-coding device |
KR102273748B1 (ko) * | 2011-06-24 | 2021-07-06 | 인터디지탈 패튼 홀딩스, 인크 | 무선 통신 시스템에서 프리앰블을 수신하기 위한 방법 및 장치 |
EP2712138A3 (en) * | 2012-09-24 | 2014-06-18 | ST-Ericsson SA | Interference cancellation technique for channel estimation in ofdm receivers |
US20140294109A1 (en) * | 2013-04-01 | 2014-10-02 | Electronics And Telecommunications Research Institute | Method and apparatus for opportunistic interference alignment (oia) in single-user multiple-input multiple-output (su-mimo) transmission |
US9398123B2 (en) * | 2013-05-03 | 2016-07-19 | Qualcomm Incorporated | Systems and methods for aggregation of physical protocol data units on a wireless network |
EP3017643B1 (en) * | 2013-07-03 | 2019-09-11 | Interdigital Patent Holdings, Inc. | Multi-band methods for interference limited wireless local area network systems |
US9596014B2 (en) * | 2014-01-28 | 2017-03-14 | Lg Electronics Inc. | Method and apparatus for cancelling interference |
KR102262183B1 (ko) * | 2014-04-04 | 2021-06-07 | 뉴라컴 인코포레이티드 | 수신 확인 방법 및 다중 사용자 전송 방법 |
EP3151454B1 (en) * | 2014-05-26 | 2020-05-06 | Sharp Kabushiki Kaisha | Wireless transmission device, wireless reception device, and communication method |
US10044421B2 (en) * | 2014-08-26 | 2018-08-07 | Intel IP Corporation | Wireless communication via combined channel training and physical layer header signaling |
EP4050809A1 (en) | 2014-09-12 | 2022-08-31 | Interdigital Patent Holdings, Inc. | Preamble selection for simultaneous transmissions in wireless local area network (wlan) systems |
US9877174B2 (en) * | 2014-10-15 | 2018-01-23 | Intel IP Corporation | Systems, methods, and devices for extending range of wireless networks |
US9660736B2 (en) * | 2014-11-19 | 2017-05-23 | Intel Corporation | Systems, methods, and devices for interference mitigation in wireless networks |
WO2016173103A1 (zh) | 2015-04-30 | 2016-11-03 | 华为技术有限公司 | Wlan***的资源指示方法及装置 |
JP6594682B2 (ja) * | 2015-07-09 | 2019-10-23 | Kddi株式会社 | 送信装置、受信装置、無線通信システム、無線通信方法及びコンピュータプログラム |
US10349283B2 (en) * | 2015-07-31 | 2019-07-09 | Lg Electronics Inc. | Method for transceiving signal in wireless LAN system and apparatus therefor |
EP4277220A3 (en) | 2015-08-06 | 2024-01-10 | LG Electronics Inc. | Method and apparatus for generating training signal by using predetermined binary sequence in wireless lan system |
EP3342239B1 (en) * | 2015-08-25 | 2020-08-05 | Telefonaktiebolaget LM Ericsson (PUBL) | Wlan nodes, and methods therein for efficient usage of wlan resources |
US10200097B2 (en) * | 2016-03-28 | 2019-02-05 | Qualcomm Incorporated | Enhanced antenna array training |
US11418278B2 (en) * | 2019-09-23 | 2022-08-16 | Qualcomm Incorporated | Configured dependency between modulation and coding scheme (MCS) and power control |
Family Cites Families (63)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1277365A1 (en) | 2000-03-23 | 2003-01-22 | Siemens Mobile Communications S.p.A. | Access channel scheduling in a radio communication system |
KR100735345B1 (ko) | 2001-08-13 | 2007-07-04 | 삼성전자주식회사 | 이동 통신 시스템에서 하향 링크 공용 물리 채널 상태에따른 송신 안테나 빔 패턴 할당 방법 |
KR100754552B1 (ko) | 2001-12-28 | 2007-09-05 | 삼성전자주식회사 | 고속 순방향 패킷 접속 방식을 사용하는 통신 시스템에서고속 공통 제어 채널 송수신 장치 및 방법 |
US7082451B2 (en) | 2002-09-09 | 2006-07-25 | Freescale Semiconductor, Inc. | Reconfigurable vector-FFT/IFFT, vector-multiplier/divider |
US8483105B2 (en) | 2003-10-15 | 2013-07-09 | Qualcomm Incorporated | High speed media access control |
US8842657B2 (en) | 2003-10-15 | 2014-09-23 | Qualcomm Incorporated | High speed media access control with legacy system interoperability |
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 |
US7474608B2 (en) | 2004-01-12 | 2009-01-06 | Intel Corporation | Method for signaling information by modifying modulation constellations |
KR100929091B1 (ko) | 2004-02-14 | 2009-11-30 | 삼성전자주식회사 | 이동통신 시스템에서 제어 정보 전송 장치 및 방법 |
US7570621B2 (en) | 2004-03-31 | 2009-08-04 | Motorola, Inc. | Method and apparatus for reducing erroneous frame classifications |
US20060002487A1 (en) | 2004-06-30 | 2006-01-05 | Kriedte Kai R | Methods and apparatus for parametric estimation in a multiple antenna communication system |
TW200705901A (en) | 2005-06-09 | 2007-02-01 | Samsung Electronics Co Ltd | Method and apparatus for receiving data with down compatibility in high throughput wireless network |
KR100643299B1 (ko) | 2005-06-09 | 2006-11-10 | 삼성전자주식회사 | 고속 무선 네트워크에서 레거시 방식의 데이터를송수신하는 방법 및 장치 |
US7907958B2 (en) | 2005-06-16 | 2011-03-15 | Qualcomm, Incorporated | Negotiated channel information reporting in a wireless communication system |
US7742390B2 (en) | 2005-08-23 | 2010-06-22 | Agere Systems Inc. | Method and apparatus for improved long preamble formats in a multiple antenna communication system |
US20070097930A1 (en) | 2005-10-27 | 2007-05-03 | Samsung Electronics Co., Ltd. | Method of implementing the Multi-MCS-Multi-Receiver Aggregation'' scheme in IEEE 802.11n standard |
WO2007080745A1 (ja) * | 2006-01-10 | 2007-07-19 | Matsushita Electric Industrial Co., Ltd. | マルチキャリア変調方法並びにその方法を用いた送信装置及び受信装置 |
CA2637594C (en) * | 2006-01-18 | 2014-04-29 | Ntt Docomo, Inc. | Base station, communication terminal, transmission method and reception method |
KR100819285B1 (ko) | 2006-03-16 | 2008-04-02 | 삼성전자주식회사 | 다중 사용자를 지원하는 다중 안테나 시스템에서의 피드 백 정보 송/수신방법 및 그 시스템 |
US8059609B2 (en) * | 2006-03-20 | 2011-11-15 | Qualcomm Incorporated | Resource allocation to support single-user and multi-user MIMO transmission |
US20090291702A1 (en) | 2006-03-24 | 2009-11-26 | Matsushita Electric Industrial Co., Ltd. | Radio communication terminal and radio communication base station device |
US20150030058A9 (en) * | 2006-05-17 | 2015-01-29 | Texas Instruments Inc. | Cqi feedback for mimo deployments |
US8787841B2 (en) | 2006-06-27 | 2014-07-22 | Qualcomm Incorporated | Method and system for providing beamforming feedback in wireless communication systems |
US20080031191A1 (en) | 2006-08-01 | 2008-02-07 | Nokia Corporation | Shared control channel structure for multi-user MIMO resource allocation |
US7944985B2 (en) * | 2006-08-24 | 2011-05-17 | Interdigital Technology Corporation | MIMO transmitter and receiver for supporting downlink communication of single channel codewords |
KR100899744B1 (ko) | 2006-09-11 | 2009-05-27 | 삼성전자주식회사 | 이동통신 시스템에서 제어 채널 메시지를 송수신하는 장치 및 방법 |
US20080080635A1 (en) * | 2006-10-02 | 2008-04-03 | Nokia Corporation | Advanced feedback signaling for multi-antenna transmission systems |
CN101536588B (zh) | 2006-10-31 | 2013-07-31 | 高通股份有限公司 | 用于反向链路传输的动态simo、su-mimo和mu-mimo操作的统一设计和集中调度 |
JP5177892B2 (ja) * | 2007-01-29 | 2013-04-10 | パナソニック株式会社 | 無線通信システム、無線通信装置及び再送制御方法 |
US8223734B2 (en) | 2007-02-14 | 2012-07-17 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting and receiving forward shared control channel in a mobile communication system |
KR101382894B1 (ko) * | 2007-03-12 | 2014-04-08 | 엘지전자 주식회사 | 다중 안테나 시스템에서의 제어정보 전송방법 |
WO2008118067A2 (en) * | 2007-03-26 | 2008-10-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Preparation phase for switching between su-mimo and mu-mimo |
US20090031185A1 (en) | 2007-07-23 | 2009-01-29 | Texas Instruments Incorporated | Hybrid arq systems and methods for packet-based networks |
US7907677B2 (en) * | 2007-08-10 | 2011-03-15 | Intel Corporation | Open loop MU-MIMO |
US8040970B2 (en) * | 2007-08-17 | 2011-10-18 | Ralink Technology Corporation | Method and apparatus for adaptive reduced overhead transmit beamforming for wireless communication systems |
US7940723B2 (en) | 2007-10-29 | 2011-05-10 | Intel Corporation | Dynamic/static transport channel to physical channel mapping in broadband wireless access systems |
US8422465B2 (en) | 2007-12-17 | 2013-04-16 | Electronics And Telecommunications Research Institute | Transmitter and receiver for high throughput wireless communication system using multiple antenna, method thereof, and digital intermediate frequency transmission signal processing method for the same |
CN101527591A (zh) | 2008-03-07 | 2009-09-09 | 富士通株式会社 | 子信道模式选择方法和应用该方法的mimo通信*** |
US8077802B2 (en) | 2008-03-17 | 2011-12-13 | Intel Corporation | Device, system, and method of resource allocation in a wireless network |
US8417191B2 (en) | 2008-03-17 | 2013-04-09 | Samsung Electronics Co., Ltd. | Method and system for beamforming communication in high throughput wireless communication systems |
US8233939B2 (en) * | 2008-03-31 | 2012-07-31 | Intel Corporation | Multiuser sector micro diversity system |
US20090323849A1 (en) * | 2008-06-30 | 2009-12-31 | Interdigital Patent Holdings, Inc. | Method and apparatus for performing multiple-input multiple-output wireless communications |
US20090322621A1 (en) * | 2008-06-30 | 2009-12-31 | Qualcomm Incorporated | Antenna array configurations for high throughput mimo wlan systems |
KR101417084B1 (ko) * | 2008-07-02 | 2014-08-07 | 엘지전자 주식회사 | 상향링크 전송을 위한 기준신호 전송 방법 |
US9755705B2 (en) * | 2008-08-07 | 2017-09-05 | Qualcomm Incorporated | Method and apparatus for supporting multi-user and single-user MIMO in a wireless communication system |
US8467345B2 (en) * | 2008-08-20 | 2013-06-18 | Qualcomm Incorporated | Methods and apparatus for scheduling wireless transmissions |
US8274903B2 (en) | 2008-08-20 | 2012-09-25 | Qualcomm Incorporated | Methods and apparatus for switching between a base channel and a 60 GHz channel |
US8867565B2 (en) | 2008-08-21 | 2014-10-21 | Qualcomm Incorporated | MIMO and SDMA signaling for wireless very high throughput systems |
US8274937B2 (en) | 2008-08-26 | 2012-09-25 | Samsung Electronics Co., Ltd. | Method and apparatus for beamforming in OFDM wireless system |
US9569528B2 (en) | 2008-10-03 | 2017-02-14 | Ab Initio Technology Llc | Detection of confidential information |
US8396162B2 (en) * | 2008-11-03 | 2013-03-12 | Motorola Mobility Llc | Method and apparatus for choosing a modulation and coding rate in a multi-user, MIMO communication system |
EP2415182B1 (en) | 2009-03-31 | 2018-11-28 | Marvell World Trade Ltd. | Method and apparatus with sounding and steering protocols for wireless communications |
KR101646721B1 (ko) | 2009-04-13 | 2016-08-12 | 마벨 월드 트레이드 리미티드 | Wlan용 물리층 프레임 포맷 |
US9485783B2 (en) | 2009-05-07 | 2016-11-01 | Qualcomm Incorporated | Enhanced multichannel access for very high throughput |
US8437440B1 (en) | 2009-05-28 | 2013-05-07 | Marvell International Ltd. | PHY frame formats in a system with more than four space-time streams |
US20100329236A1 (en) | 2009-06-26 | 2010-12-30 | Qualcomm Incorporated | Method and apparatus for multiple user uplink requiring minimal station timing and frequency synchronization |
US8761033B2 (en) | 2009-06-29 | 2014-06-24 | Qualcomm Incorporated | Method and apparatus for multi-station request messaging |
US8885551B2 (en) | 2009-07-06 | 2014-11-11 | Qualcomm Incorporated | Multiuser scheduling in WLAN systems |
US20110018780A1 (en) * | 2009-07-21 | 2011-01-27 | Qualcomm Incoporated | Antenna Array For Multiple In Multiple Out (MIMO) Communication Systems |
US8599804B2 (en) | 2009-08-07 | 2013-12-03 | Broadcom Corporation | Distributed signal field for communications within multiple user, multiple access, and/or MIMO wireless communications |
US9503931B2 (en) | 2009-08-12 | 2016-11-22 | Qualcomm Incorporated | Enhancements to the MU-MIMO VHT preamble to enable mode detection |
EP2491663B1 (en) | 2009-10-23 | 2015-07-29 | Marvell World Trade Ltd. | Training sequence indication for WLAN |
KR20110082685A (ko) | 2010-01-12 | 2011-07-20 | 삼성전자주식회사 | 다중 사용자 다중 입출력 시스템의 프리엠블 생성 방법 및 상기 방법이 채용된 데이터 전송 장치와 단말 |
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