BR112014027631A2 - multi antenna (but) and multi-user (mu) system and method - Google Patents
multi antenna (but) and multi-user (mu) system and methodInfo
- Publication number
- BR112014027631A2 BR112014027631A2 BR112014027631-5A BR112014027631A BR112014027631A2 BR 112014027631 A2 BR112014027631 A2 BR 112014027631A2 BR 112014027631 A BR112014027631 A BR 112014027631A BR 112014027631 A2 BR112014027631 A2 BR 112014027631A2
- Authority
- BR
- Brazil
- Prior art keywords
- user
- antenna
- csi
- doppler effect
- configuration
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 230000000694 effects Effects 0.000 abstract 2
- 230000002411 adverse Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/01—Reducing phase shift
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
-
- 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
- H04B7/0613—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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S367/00—Communications, electrical: acoustic wave systems and devices
- Y10S367/904—Doppler compensation systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
sistema de múltipla antena (mu-mas) e multiusuário (mu) e método aperfeiçoado dentro do referido sistema de estabilização do efeito doppler um sistema e métodos foram descritos os quais estabilizam o efeito doppler adverso no desempenho dos sistemas dido. uma configuração do referido sistema emprega diferentes algoritmos de seleção para ajustar de forma adaptada as btss ativas para diferentes ues tendo como base o monitoramento de alterações das condições do canal. outra configuração utiliza a previsão do canal para estimar a futura csi ou pesos de précodificação dido, eliminando dessa maneira os erros devido à desatualização de csi.multi-antenna (mu-mas) and multi-user (mu) system and improved method within said doppler effect stabilization system a system and methods have been described which stabilize the adverse doppler effect on the performance of said systems. One configuration of said system employs different selection algorithms to suitably adjust active btss for different uses based on the monitoring of changes in channel conditions. another configuration uses channel prediction to estimate future csi or pre-coding weights, thereby eliminating errors due to csi downgrading.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/464,648 US9312929B2 (en) | 2004-04-02 | 2012-05-04 | System and methods to compensate for Doppler effects in multi-user (MU) multiple antenna systems (MAS) |
US13/464.648 | 2012-05-04 | ||
PCT/US2013/039580 WO2013166464A1 (en) | 2012-05-04 | 2013-05-03 | System and methods for coping with doppler effects in distributed-input distributed-output wireless systems |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112014027631A2 true BR112014027631A2 (en) | 2019-05-14 |
Family
ID=49514932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112014027631-5A BR112014027631A2 (en) | 2012-05-04 | 2013-05-03 | multi antenna (but) and multi-user (mu) system and method |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP2845178A4 (en) |
JP (3) | JP6178842B2 (en) |
KR (1) | KR101875397B1 (en) |
CN (2) | CN111262613A (en) |
AU (3) | AU2013256044B2 (en) |
BR (1) | BR112014027631A2 (en) |
CA (1) | CA2872502C (en) |
IL (2) | IL272481B2 (en) |
MX (1) | MX354045B (en) |
RU (2) | RU2649078C2 (en) |
SG (1) | SG11201407381VA (en) |
TW (4) | TWI591976B (en) |
WO (1) | WO2013166464A1 (en) |
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2013
- 2013-05-03 SG SG11201407381VA patent/SG11201407381VA/en unknown
- 2013-05-03 BR BR112014027631-5A patent/BR112014027631A2/en not_active Application Discontinuation
- 2013-05-03 EP EP13784690.3A patent/EP2845178A4/en not_active Withdrawn
- 2013-05-03 CN CN202010055466.7A patent/CN111262613A/en active Pending
- 2013-05-03 AU AU2013256044A patent/AU2013256044B2/en active Active
- 2013-05-03 WO PCT/US2013/039580 patent/WO2013166464A1/en active Application Filing
- 2013-05-03 JP JP2015510498A patent/JP6178842B2/en active Active
- 2013-05-03 IL IL272481A patent/IL272481B2/en unknown
- 2013-05-03 KR KR1020147033764A patent/KR101875397B1/en active Active
- 2013-05-03 CN CN201380035543.0A patent/CN104603853B/en active Active
- 2013-05-03 CA CA2872502A patent/CA2872502C/en active Active
- 2013-05-03 RU RU2014148791A patent/RU2649078C2/en active
- 2013-05-03 MX MX2014013377A patent/MX354045B/en active IP Right Grant
- 2013-05-03 RU RU2018109118A patent/RU2018109118A/en not_active Application Discontinuation
- 2013-05-06 TW TW102116145A patent/TWI591976B/en active
- 2013-05-06 TW TW106114789A patent/TWI685222B/en active
- 2013-05-06 TW TW108148122A patent/TWI756605B/en active
- 2013-05-06 TW TW111107021A patent/TWI874750B/en active
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2014
- 2014-11-05 IL IL235518A patent/IL235518B/en active IP Right Grant
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2017
- 2017-07-14 JP JP2017138170A patent/JP6542300B2/en active Active
- 2017-08-04 AU AU2017210619A patent/AU2017210619B2/en active Active
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2019
- 2019-06-12 JP JP2019109413A patent/JP2019198082A/en active Pending
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2020
- 2020-01-06 AU AU2020200070A patent/AU2020200070A1/en not_active Abandoned
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