BR112012022758A2 - métodos para reduzir interferência em comunicação - Google Patents
métodos para reduzir interferência em comunicaçãoInfo
- Publication number
- BR112012022758A2 BR112012022758A2 BR112012022758A BR112012022758A BR112012022758A2 BR 112012022758 A2 BR112012022758 A2 BR 112012022758A2 BR 112012022758 A BR112012022758 A BR 112012022758A BR 112012022758 A BR112012022758 A BR 112012022758A BR 112012022758 A2 BR112012022758 A2 BR 112012022758A2
- Authority
- BR
- Brazil
- Prior art keywords
- methods
- quantized
- interference
- reduce communication
- communication interference
- Prior art date
Links
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
- H04B7/06—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
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/345—Interference values
-
- 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
- H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
-
- 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
- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
-
- 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
-
- 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
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
-
- 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
- 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
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
- Power Engineering (AREA)
- Radio Transmission System (AREA)
- Noise Elimination (AREA)
Abstract
métodos para reduzir interferência em comunicação modalidades de exemplo são dirigidas para métodos de redução de interferência em um sistema de comunicação . um método inclui receber , por um transmissor , primeira e segunda matrizes quantizadas partir de uma estação móvel. a primeira e segunda matrizes quantizadas são baseadas em uma matriz de uma canal estimada e uma matriz de interferência estimada. o método inclui ainda determinar , pelo transmissor, um vetor de formação de feixe de transmissão baseado no primeiro e segundo valores quantizados.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/659,471 US9048907B2 (en) | 2010-03-10 | 2010-03-10 | Methods for reducing interference in communication systems |
PCT/US2011/024684 WO2011112314A1 (en) | 2010-03-10 | 2011-02-14 | Methods for reducing interference in communication systems |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112012022758A2 true BR112012022758A2 (pt) | 2018-05-22 |
Family
ID=44059066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112012022758A BR112012022758A2 (pt) | 2010-03-10 | 2011-02-14 | métodos para reduzir interferência em comunicação |
Country Status (8)
Country | Link |
---|---|
US (1) | US9048907B2 (pt) |
EP (1) | EP2545659A1 (pt) |
JP (1) | JP2013522960A (pt) |
KR (1) | KR101487222B1 (pt) |
CN (1) | CN102792607A (pt) |
BR (1) | BR112012022758A2 (pt) |
TW (1) | TWI467938B (pt) |
WO (1) | WO2011112314A1 (pt) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9356674B2 (en) * | 2005-09-21 | 2016-05-31 | Broadcom Corporation | Method and system for using non-uniform channel quantization for a feedback-based communication system |
US9401784B2 (en) | 2009-10-21 | 2016-07-26 | Qualcomm Incorporated | Time and frequency acquisition and tracking for OFDMA wireless systems |
US8428629B2 (en) * | 2010-03-31 | 2013-04-23 | Qualcomm Incorporated | Methods and apparatus for determining a communications mode and/or using a determined communications mode |
US8412246B2 (en) * | 2010-04-29 | 2013-04-02 | Eden Rock Communications, Llc | Systems and methods for coordinating the scheduling of beamformed data to reduce interference |
EP2654217B1 (en) * | 2011-04-14 | 2019-01-23 | LG Electronics Inc. | Method for suppressing interference of terminal in multiple input multiple output wireless communication system and apparatus therefor |
US9048906B2 (en) * | 2011-05-03 | 2015-06-02 | Broadcom Corporation | Beamforming precoding matrix using non-uniform angles quantization |
US9497765B2 (en) * | 2011-08-17 | 2016-11-15 | Qualcomm Incorporated | Network coordination for improved interference cancellation |
CN103634036B (zh) * | 2012-08-27 | 2017-10-27 | 华为技术有限公司 | 分布式多小区多用户波束成形方法、发射机及相关*** |
KR101756234B1 (ko) * | 2012-11-26 | 2017-07-10 | 삼성전자주식회사 | 복수의 릴레이 단말들을 이용하여 데이터를 중계하는 중계 방법 및 중계 시스템 |
EP2949140B1 (en) * | 2013-01-23 | 2017-04-19 | Telefonaktiebolaget LM Ericsson (publ) | Method and network node for mitigation of interference |
US9325540B2 (en) | 2013-04-10 | 2016-04-26 | Marvell World Trade Ltd. | Method and apparatus for mitigating interference in a wireless network through use of transmit beamforming |
US10320459B2 (en) | 2013-04-10 | 2019-06-11 | Marvell World Trade Ltd. | Method and apparatus for mitigating interference in a wireless network through use of transmit beamforming |
WO2015039116A2 (en) | 2013-09-16 | 2015-03-19 | Marvell World Trade Ltd. | Access point coordination for traffic control in wireless networks |
US9414285B2 (en) * | 2014-06-30 | 2016-08-09 | Qualcomm Incorporated | Handover with integrated antenna beam training in wireless networks |
US9491776B2 (en) * | 2014-07-23 | 2016-11-08 | Intel Corporation | Systems and methods for scheduling communication between wireless devices to reduce interference associated with full duplex communication in multi-cell networks |
US11095391B2 (en) | 2018-12-19 | 2021-08-17 | Nxp Usa, Inc. | Secure WiFi communication |
US11146311B2 (en) | 2019-03-21 | 2021-10-12 | Marvell Asia Pte, Ltd. | Coordinated multi-user transmissions with multiple access points |
Family Cites Families (22)
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US6400780B1 (en) | 1998-11-06 | 2002-06-04 | Lucent Technologies Inc. | Space-time diversity for wireless systems |
JP3872953B2 (ja) | 1999-12-27 | 2007-01-24 | 株式会社東芝 | アダプティブアンテナを用いた無線通信装置 |
JP2002208812A (ja) | 2000-12-28 | 2002-07-26 | Toshiba Corp | アダプティブアンテナ装置及び送受信パターン設定方法 |
DE60222779T2 (de) * | 2001-02-14 | 2008-07-03 | Ntt Docomo Inc. | Kommunikationsregelungsverfahren und Vorrichtung in einem Mobilfunksystem |
US7274677B1 (en) * | 2001-04-16 | 2007-09-25 | Cisco Technology, Inc. | Network management architecture |
JP2003243921A (ja) * | 2002-02-15 | 2003-08-29 | Ntt Docomo Inc | アンテナの指向角を制御する無線受信装置および方法 |
US7203520B2 (en) * | 2003-09-30 | 2007-04-10 | Nortel Networks Limited | Beam wobbling for increased downlink coverage and capacity |
KR100703322B1 (ko) * | 2004-05-07 | 2007-04-03 | 삼성전자주식회사 | 배열 안테나 시스템을 위한 빔 형성 장치 및 방법 |
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 |
EP2254264A3 (en) * | 2005-01-05 | 2013-11-13 | ATC Technologies, LLC | Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems and methods |
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 |
WO2006107230A1 (en) | 2005-03-30 | 2006-10-12 | Intel Corporation | Multiple-input multiple-output multicarrier communication system with joint transmitter and receiver adaptive beamforming for enhanced signal-to-noise ratio |
EP1804409B1 (en) | 2005-12-27 | 2011-09-07 | Mitsubishi Electric R&D Centre Europe B.V. | Method and device for reporting information related to interference components received by a first telecommunication device in some frequency subbands to a second telecommunication device |
US7720030B2 (en) * | 2006-02-28 | 2010-05-18 | Intel Corporation | Techniques for explicit feedback delay measurement |
EP1848132A1 (en) | 2006-04-18 | 2007-10-24 | Mitsubishi Electric Information Technology Centre Europe B.V. | Method for transferring information related to interference components and power information used by a telecommunication device for weighting at least one pilot signal |
US20080267063A1 (en) * | 2007-04-27 | 2008-10-30 | Tenxc Wireless, Inc. | Method and apparatus for multi-user scheduling for interference avoidance in adaptive beamforming systems |
WO2008157646A2 (en) | 2007-06-18 | 2008-12-24 | University Of Florida Research Foundation , Inc. | Mimo transmit beamforming under uniform elemental peak power constant |
CN101159462A (zh) | 2007-11-01 | 2008-04-09 | 中国科学技术大学 | 一种多天线多小区***中的有限反馈预编码干扰抑制方法 |
US8340605B2 (en) | 2008-08-06 | 2012-12-25 | Qualcomm Incorporated | Coordinated transmissions between cells of a base station in a wireless communications system |
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 |
US9294160B2 (en) * | 2008-08-11 | 2016-03-22 | Qualcomm Incorporated | Method and apparatus for supporting distributed MIMO in a wireless communication system |
US9681455B2 (en) | 2010-01-28 | 2017-06-13 | Alcatel Lucent | Methods for reducing interference in a communication system |
-
2010
- 2010-03-10 US US12/659,471 patent/US9048907B2/en not_active Expired - Fee Related
-
2011
- 2011-02-14 BR BR112012022758A patent/BR112012022758A2/pt not_active IP Right Cessation
- 2011-02-14 CN CN2011800131144A patent/CN102792607A/zh active Pending
- 2011-02-14 JP JP2012557057A patent/JP2013522960A/ja active Pending
- 2011-02-14 KR KR1020127026234A patent/KR101487222B1/ko not_active IP Right Cessation
- 2011-02-14 EP EP11706678A patent/EP2545659A1/en not_active Withdrawn
- 2011-02-14 WO PCT/US2011/024684 patent/WO2011112314A1/en active Application Filing
- 2011-03-07 TW TW100107607A patent/TWI467938B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR20120138804A (ko) | 2012-12-26 |
CN102792607A (zh) | 2012-11-21 |
US20110223867A1 (en) | 2011-09-15 |
EP2545659A1 (en) | 2013-01-16 |
TWI467938B (zh) | 2015-01-01 |
TW201212558A (en) | 2012-03-16 |
JP2013522960A (ja) | 2013-06-13 |
KR101487222B1 (ko) | 2015-01-28 |
WO2011112314A1 (en) | 2011-09-15 |
US9048907B2 (en) | 2015-06-02 |
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