BR112013006485A2 - técnicas para sondagem mimo de múltiplos usuários em redes sem fio - Google Patents
técnicas para sondagem mimo de múltiplos usuários em redes sem fioInfo
- Publication number
- BR112013006485A2 BR112013006485A2 BR112013006485A BR112013006485A BR112013006485A2 BR 112013006485 A2 BR112013006485 A2 BR 112013006485A2 BR 112013006485 A BR112013006485 A BR 112013006485A BR 112013006485 A BR112013006485 A BR 112013006485A BR 112013006485 A2 BR112013006485 A2 BR 112013006485A2
- Authority
- BR
- Brazil
- Prior art keywords
- user
- techniques
- wireless networks
- minimum
- over wireless
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 abstract 2
- 101100369915 Drosophila melanogaster stas gene Proteins 0.000 abstract 1
- 239000000523 sample Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0452—Multi-user MIMO systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/04—Scheduled access
- H04W74/06—Scheduled access using polling
-
- 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
- H04B7/0421—Feedback systems utilizing implicit feedback, e.g. steered pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
-
- 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
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
Abstract
técnicas para sondagem mimo de múltiplos usuários em redes sem fio. uma modalidade da presente invenção provê um equipamento, compreendendo um transceptor operável como um ponto de acesso e capax de se comunicar em uma rede sem fio, o ap é adaptado para executar uma transmissão de múltiplas entradas e múltiplas saídas de múltiplos usuários de downlink (dl mu-mimo) e é adaptado adicionalmente para transmitir um pacote de dados nulo (ndp) para sondar canais entre estações (stas) sem fio de destino pretendidas, e em após uma transmissão de dl mu-mimo do ndp, o ap consulta cada uma das stas por informação de extado de canal.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/890,102 | 2010-09-24 | ||
US12/890,102 US8976877B2 (en) | 2010-09-24 | 2010-09-24 | Techniques for multi-user MIMO sounding in wireless networks |
PCT/US2011/053332 WO2012040739A1 (en) | 2010-09-24 | 2011-09-26 | Techniques for multi-user mimo sounding in wireless networks |
Publications (2)
Publication Number | Publication Date |
---|---|
BR112013006485A2 true BR112013006485A2 (pt) | 2016-07-26 |
BR112013006485B1 BR112013006485B1 (pt) | 2021-09-28 |
Family
ID=45870614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112013006485-4A BR112013006485B1 (pt) | 2010-09-24 | 2011-09-26 | Técnicas para sondagem mimo de múltiplos usuários em redes sem fio |
Country Status (7)
Country | Link |
---|---|
US (1) | US8976877B2 (pt) |
EP (1) | EP2619921A4 (pt) |
JP (1) | JP5592017B2 (pt) |
KR (1) | KR101464091B1 (pt) |
CN (1) | CN103109469B (pt) |
BR (1) | BR112013006485B1 (pt) |
WO (1) | WO2012040739A1 (pt) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8976877B2 (en) | 2010-09-24 | 2015-03-10 | Intel Corporation | Techniques for multi-user MIMO sounding in wireless networks |
US9806848B2 (en) | 2010-09-29 | 2017-10-31 | Qualcomm Incorporated | Systems, methods and apparatus for determining control field and modulation coding scheme information |
US9882624B2 (en) | 2010-09-29 | 2018-01-30 | Qualcomm, Incorporated | Systems and methods for communication of channel state information |
US9374193B2 (en) | 2010-09-29 | 2016-06-21 | Qualcomm Incorporated | Systems and methods for communication of channel state information |
US9602298B2 (en) | 2010-09-29 | 2017-03-21 | Qualcomm Incorporated | Methods and apparatuses for determining a type of control field |
US9813135B2 (en) * | 2010-09-29 | 2017-11-07 | Qualcomm, Incorporated | Systems and methods for communication of channel state information |
US9831983B2 (en) | 2010-09-29 | 2017-11-28 | Qualcomm Incorporated | Systems, methods and apparatus for determining control field and modulation coding scheme information |
US9077498B2 (en) | 2010-09-29 | 2015-07-07 | Qualcomm Incorporated | Systems and methods for communication of channel state information |
US10090982B2 (en) | 2010-09-29 | 2018-10-02 | Qualcomm Incorporated | Systems and methods for communication of channel state information |
KR101099345B1 (ko) | 2010-12-01 | 2011-12-26 | 엘지전자 주식회사 | 무선랜 시스템에서 채널 사운딩 방법 및 장치 |
CN103891342B (zh) * | 2011-08-18 | 2018-04-24 | 马维尔国际贸易有限公司 | 用于wlan的信号字段设计 |
US9608789B2 (en) * | 2012-05-11 | 2017-03-28 | Interdigital Patent Holdings, Inc. | Method and apparatus for transmitting acknowledgements in response to received frames |
WO2014011006A1 (ko) * | 2012-07-13 | 2014-01-16 | 엘지전자 주식회사 | 무선랜 시스템에서 널 데이터 패킷 프레임을 이용하는 채널 액세스 방법 및 장치 |
WO2014182137A1 (ko) * | 2013-05-10 | 2014-11-13 | 한국전자통신연구원 | 무선랜 시스템에서의 채널 사운딩 방법 및 이를 지원하는 장치 |
US20150124677A1 (en) * | 2013-11-04 | 2015-05-07 | Qualcomm Incorporated | Definition of different ndp ps-poll types |
US9825678B2 (en) | 2013-11-26 | 2017-11-21 | Marvell World Trade Ltd. | Uplink multi-user multiple input multiple output for wireless local area network |
US9473341B2 (en) | 2013-11-27 | 2016-10-18 | Marvell World Trade Ltd. | Sounding and tone block allocation for orthogonal frequency multiple access (OFDMA) in wireless local area networks |
US9166660B2 (en) * | 2013-11-27 | 2015-10-20 | Marvell World Trade Ltd. | Uplink multi-user multiple input multiple output beamforming |
WO2015102180A1 (ko) * | 2014-01-06 | 2015-07-09 | 엘지전자 주식회사 | 무선 통신 시스템에서 사운딩 방법 및 장치 |
WO2015165070A1 (zh) * | 2014-04-30 | 2015-11-05 | 华为技术有限公司 | 信道测量方法、信道测量装置、用户设备及*** |
EP3138226B1 (en) | 2014-05-02 | 2020-07-08 | NXP USA, Inc. | Multiple user allocation signaling in a wireless communication network |
US9788317B2 (en) * | 2015-03-30 | 2017-10-10 | Intel IP Corporation | Access point (AP), user station (STA) and method for channel sounding using sounding trigger frames |
US10143003B2 (en) * | 2015-10-15 | 2018-11-27 | Samsung Electronics Co., Ltd. | Methods and apparatus for beamforming feedback in wireless systems |
CN107027145B (zh) * | 2016-02-01 | 2021-01-01 | 华为技术有限公司 | 信道测量方法及装置 |
US10616783B2 (en) | 2016-05-10 | 2020-04-07 | Samsung Electronics Co., Ltd | Device grouping based on reported channel information and communication performance |
DE112017006778T5 (de) * | 2017-01-10 | 2019-10-31 | Intel IP Corporation | Differenzialcodierung mehrerer bits für einen nulldatenpaket- (ndp)feedbackbericht |
US11096132B2 (en) * | 2018-07-26 | 2021-08-17 | Mediatek Singapore Pte. Ltd. | Joint sounding for multi-user communication in multi-AP WLAN |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4455389B2 (ja) * | 2005-04-01 | 2010-04-21 | 株式会社エヌ・ティ・ティ・ドコモ | 無線通信装置及び無線通信方法 |
US20080002733A1 (en) | 2006-06-30 | 2008-01-03 | Ilan Sutskover | Method and apparatus for scheduling transmissions in multiple access wireless networks |
US8842606B2 (en) | 2007-08-31 | 2014-09-23 | Koninklijke Philips N.V. | Enhanced multi-user transmission |
US8498362B2 (en) | 2008-02-01 | 2013-07-30 | Marvell World Trade Ltd. | Channel sounding and estimation strategies for antenna selection in MIMO systems |
JP2010081360A (ja) | 2008-09-26 | 2010-04-08 | Toshiba Corp | 無線通信装置および無線通信方法 |
US9197298B2 (en) * | 2009-06-05 | 2015-11-24 | Broadcom Corporation | Group identification and definition within multiple user, multiple access, and/or MIMO wireless communications |
WO2011005004A2 (en) * | 2009-07-07 | 2011-01-13 | Lg Electronics Inc. | Method and apparatus for indicating destination stations in wlan system supporting multi-user multiple input multiple output |
US8848624B2 (en) * | 2009-08-17 | 2014-09-30 | Broadcom Corporation | Multi-user uplink communications within multiple user, multiple access, and/or MIMO wireless communication systems |
US20110222473A1 (en) * | 2009-09-18 | 2011-09-15 | Qualcomm Incorporated | Protocol to support adaptive station-dependent channel state information feedback rate in multi-user communication systems |
WO2011068985A1 (en) * | 2009-12-02 | 2011-06-09 | Marvell World Trade Ltd. | Method and apparatus for sounding multiple stations |
US9742590B2 (en) | 2010-07-07 | 2017-08-22 | Qualcomm Incorporated | Channel state information (CSI) feedback protocol for multiuser multiple input, multiple output (MU-MIMO) |
US9337954B2 (en) * | 2010-07-28 | 2016-05-10 | Qualcomm Incorporated | Protocol for channel state information feedback |
US9088393B2 (en) * | 2010-07-30 | 2015-07-21 | Lg Electronics Inc. | Method and apparatus for reporting channel state information of multi-channel in wireless local area network system |
US9131395B2 (en) * | 2010-09-08 | 2015-09-08 | Broadcom Corporation | Acknowledgment and/or receiver recovery mechanisms for scheduled responses within multiple user, multiple access, and/or MIMO wireless communications |
US8976877B2 (en) | 2010-09-24 | 2015-03-10 | Intel Corporation | Techniques for multi-user MIMO sounding in wireless networks |
-
2010
- 2010-09-24 US US12/890,102 patent/US8976877B2/en active Active
-
2011
- 2011-09-26 KR KR1020137004878A patent/KR101464091B1/ko active IP Right Grant
- 2011-09-26 CN CN201180045837.2A patent/CN103109469B/zh active Active
- 2011-09-26 WO PCT/US2011/053332 patent/WO2012040739A1/en active Application Filing
- 2011-09-26 BR BR112013006485-4A patent/BR112013006485B1/pt active IP Right Grant
- 2011-09-26 EP EP11827752.4A patent/EP2619921A4/en not_active Ceased
- 2011-09-26 JP JP2013530405A patent/JP5592017B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP5592017B2 (ja) | 2014-09-17 |
KR101464091B1 (ko) | 2014-11-21 |
WO2012040739A1 (en) | 2012-03-29 |
EP2619921A1 (en) | 2013-07-31 |
KR20130042582A (ko) | 2013-04-26 |
EP2619921A4 (en) | 2014-03-26 |
US20120076179A1 (en) | 2012-03-29 |
US8976877B2 (en) | 2015-03-10 |
JP2013543681A (ja) | 2013-12-05 |
CN103109469B (zh) | 2016-05-25 |
BR112013006485B1 (pt) | 2021-09-28 |
CN103109469A (zh) | 2013-05-15 |
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Legal Events
Date | Code | Title | Description |
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B06U | Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette] | ||
B15K | Others concerning applications: alteration of classification |
Free format text: AS CLASSIFICACOES ANTERIORES ERAM: H04B 7/04 , H04W 88/08 Ipc: H04B 7/0452 (2017.01), H04B 7/06 (2006.01), H04W 7 |
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B350 | Update of information on the portal [chapter 15.35 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 26/09/2011, OBSERVADAS AS CONDICOES LEGAIS. PATENTE CONCEDIDA CONFORME ADI 5.529/DF, QUE DETERMINA A ALTERACAO DO PRAZO DE CONCESSAO. |