AU2015302075B2 - CSI request procedure in LTE/LTE-A with unlicensed spectrum - Google Patents

CSI request procedure in LTE/LTE-A with unlicensed spectrum Download PDF

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Publication number
AU2015302075B2
AU2015302075B2 AU2015302075A AU2015302075A AU2015302075B2 AU 2015302075 B2 AU2015302075 B2 AU 2015302075B2 AU 2015302075 A AU2015302075 A AU 2015302075A AU 2015302075 A AU2015302075 A AU 2015302075A AU 2015302075 B2 AU2015302075 B2 AU 2015302075B2
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Australia
Prior art keywords
reference signal
identifier
base station
subframe
csi
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AU2015302075A
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AU2015302075A1 (en
Inventor
Tao Luo
Siddhartha Mallik
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Qualcomm Inc
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Qualcomm Inc
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Publication of AU2015302075B2 publication Critical patent/AU2015302075B2/en
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Classifications

    • 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
    • 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

Landscapes

  • 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)
AU2015302075A 2014-08-12 2015-08-05 CSI request procedure in LTE/LTE-A with unlicensed spectrum Active AU2015302075B2 (en)

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 US9900074B2 (en) 2014-08-12 2015-08-04 CSI request procedure in LTE/LTE-A with unlicensed spectrum
US14/818,049 2015-08-04
PCT/US2015/043758 WO2016025262A1 (en) 2014-08-12 2015-08-05 Csi request procedure in lte/lte-a with unlicensed spectrum

Publications (2)

Publication Number Publication Date
AU2015302075A1 AU2015302075A1 (en) 2017-02-02
AU2015302075B2 true AU2015302075B2 (en) 2019-09-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
AU2015302075A Active AU2015302075B2 (en) 2014-08-12 2015-08-05 CSI request procedure in LTE/LTE-A with unlicensed spectrum

Country Status (8)

Country Link
US (4) US9900074B2 (OSRAM)
EP (1) EP3180878B1 (OSRAM)
JP (3) JP6599432B2 (OSRAM)
KR (1) KR102383068B1 (OSRAM)
CN (2) CN106576019B (OSRAM)
AU (1) AU2015302075B2 (OSRAM)
ES (1) ES2856484T3 (OSRAM)
WO (1) WO2016025262A1 (OSRAM)

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Also Published As

Publication number Publication date
US10312987B2 (en) 2019-06-04
US20180159610A1 (en) 2018-06-07
KR20170043522A (ko) 2017-04-21
BR112017002765A2 (pt) 2018-01-02
CN106576019B (zh) 2019-10-22
EP3180878A1 (en) 2017-06-21
CN110635834B (zh) 2023-04-14
JP2017525301A (ja) 2017-08-31
US20190288761A1 (en) 2019-09-19
AU2015302075A1 (en) 2017-02-02
JP7273900B2 (ja) 2023-05-15
JP2021180501A (ja) 2021-11-18
KR102383068B1 (ko) 2022-04-04
US20210306047A1 (en) 2021-09-30
JP6599432B2 (ja) 2019-10-30
JP2020017994A (ja) 2020-01-30
WO2016025262A1 (en) 2016-02-18
US20160050004A1 (en) 2016-02-18
CN110635834A (zh) 2019-12-31
EP3180878B1 (en) 2020-12-02
US11799532B2 (en) 2023-10-24
US9900074B2 (en) 2018-02-20
ES2856484T3 (es) 2021-09-27
CN106576019A (zh) 2017-04-19
US11038575B2 (en) 2021-06-15

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