KR102383068B1 - 비허가된 스펙트럼을 갖는 lte/lte-a에서 csi 요청 절차 - Google Patents

비허가된 스펙트럼을 갖는 lte/lte-a에서 csi 요청 절차 Download PDF

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KR102383068B1
KR102383068B1 KR1020177003564A KR20177003564A KR102383068B1 KR 102383068 B1 KR102383068 B1 KR 102383068B1 KR 1020177003564 A KR1020177003564 A KR 1020177003564A KR 20177003564 A KR20177003564 A KR 20177003564A KR 102383068 B1 KR102383068 B1 KR 102383068B1
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reference signal
base station
csi
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lte
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KR20170043522A (ko
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시다라타 말릭
타오 루오
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퀄컴 인코포레이티드
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    • 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
    • H04L1/0026—Transmission of channel quality indication
    • 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
    • H04B7/04—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
    • H04B7/0636—Feedback format
    • H04B7/0643—Feedback on request
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H04W72/042—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
KR1020177003564A 2014-08-12 2015-08-05 비허가된 스펙트럼을 갖는 lte/lte-a에서 csi 요청 절차 Active KR102383068B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201462036296P 2014-08-12 2014-08-12
US62/036,296 2014-08-12
US14/818,049 2015-08-04
US14/818,049 US9900074B2 (en) 2014-08-12 2015-08-04 CSI request procedure in LTE/LTE-A with unlicensed spectrum
PCT/US2015/043758 WO2016025262A1 (en) 2014-08-12 2015-08-05 Csi request procedure in lte/lte-a with unlicensed spectrum

Publications (2)

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KR20170043522A KR20170043522A (ko) 2017-04-21
KR102383068B1 true KR102383068B1 (ko) 2022-04-04

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US (4) US9900074B2 (enExample)
EP (1) EP3180878B1 (enExample)
JP (3) JP6599432B2 (enExample)
KR (1) KR102383068B1 (enExample)
CN (2) CN110635834B (enExample)
AU (1) AU2015302075B2 (enExample)
ES (1) ES2856484T3 (enExample)
WO (1) WO2016025262A1 (enExample)

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KR20170043522A (ko) 2017-04-21
EP3180878A1 (en) 2017-06-21
JP2017525301A (ja) 2017-08-31
AU2015302075B2 (en) 2019-09-12
US9900074B2 (en) 2018-02-20
CN106576019A (zh) 2017-04-19
US20180159610A1 (en) 2018-06-07
BR112017002765A2 (pt) 2018-01-02
US11799532B2 (en) 2023-10-24
CN110635834B (zh) 2023-04-14
US11038575B2 (en) 2021-06-15
CN110635834A (zh) 2019-12-31
JP6599432B2 (ja) 2019-10-30
CN106576019B (zh) 2019-10-22
EP3180878B1 (en) 2020-12-02
JP2021180501A (ja) 2021-11-18
US20210306047A1 (en) 2021-09-30
US20160050004A1 (en) 2016-02-18
JP7273900B2 (ja) 2023-05-15
JP2020017994A (ja) 2020-01-30
AU2015302075A1 (en) 2017-02-02
ES2856484T3 (es) 2021-09-27
US20190288761A1 (en) 2019-09-19
WO2016025262A1 (en) 2016-02-18
US10312987B2 (en) 2019-06-04

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