CA2872502C - Systeme et procedes permettant de supporter les effets doppler dans les systemes sans fil a entrees distribuees-sorties distribuees - Google Patents

Systeme et procedes permettant de supporter les effets doppler dans les systemes sans fil a entrees distribuees-sorties distribuees Download PDF

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Publication number
CA2872502C
CA2872502C CA2872502A CA2872502A CA2872502C CA 2872502 C CA2872502 C CA 2872502C CA 2872502 A CA2872502 A CA 2872502A CA 2872502 A CA2872502 A CA 2872502A CA 2872502 C CA2872502 C CA 2872502C
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Prior art keywords
distributed
methods
coping
wireless systems
output wireless
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CA2872502A1 (fr
Inventor
Antonio Forenza
Stephen G. Perlman
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Rearden LLC
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Rearden LLC
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Priority claimed from US13/464,648 external-priority patent/US9312929B2/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/01—Reducing phase shift
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • 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
    • 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

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  • 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

L'invention concerne un système et des procédés qui compensent l'effet négatif du Doppler sur les performances des systèmes à entrées distribuées-sorties distribuées (DIDO). Dans un mode de réalisation, un système utilise différents algorithmes de sélection pour ajuster de manière adaptative les BTS actives sur différents UE, grâce au suivi des conditions changeantes des canaux. Un autre mode de réalisation utilise la prédiction de canaux pour estimer les futurs poids de précodage de CSI ou de DIDO, ce qui évite les erreurs dues aux CSI périmées.
CA2872502A 2012-05-04 2013-05-03 Systeme et procedes permettant de supporter les effets doppler dans les systemes sans fil a entrees distribuees-sorties distribuees Active CA2872502C (fr)

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 (fr) 2012-05-04 2013-05-03 Système et procédés permettant de supporter les effets doppler dans les systèmes sans fil à entrées distribuées-sorties distribuées

Publications (2)

Publication Number Publication Date
CA2872502A1 CA2872502A1 (fr) 2013-11-07
CA2872502C true CA2872502C (fr) 2021-05-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2872502A Active CA2872502C (fr) 2012-05-04 2013-05-03 Systeme et procedes permettant de supporter les effets doppler dans les systemes sans fil a entrees distribuees-sorties distribuees

Country Status (13)

Country Link
EP (1) EP2845178A4 (fr)
JP (3) JP6178842B2 (fr)
KR (1) KR101875397B1 (fr)
CN (2) CN104603853B (fr)
AU (3) AU2013256044B2 (fr)
BR (1) BR112014027631A2 (fr)
CA (1) CA2872502C (fr)
IL (2) IL272481B2 (fr)
MX (1) MX354045B (fr)
RU (2) RU2018109118A (fr)
SG (1) SG11201407381VA (fr)
TW (4) TWI591976B (fr)
WO (1) WO2013166464A1 (fr)

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HK1209521A1 (en) 2016-04-01
AU2013256044A1 (en) 2014-11-27
JP2019198082A (ja) 2019-11-14
CN104603853B (zh) 2020-02-18
MX2014013377A (es) 2015-06-03
MX354045B (es) 2018-02-09
JP2017225138A (ja) 2017-12-21
JP2015526917A (ja) 2015-09-10
TWI756605B (zh) 2022-03-01
KR101875397B1 (ko) 2018-08-02
EP2845178A1 (fr) 2015-03-11
EP2845178A4 (fr) 2015-12-23
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RU2014148791A (ru) 2016-06-27
RU2018109118A (ru) 2019-02-26
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CN104603853A (zh) 2015-05-06
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