WO2016120728A3 - Method of improving channel quality feedback - Google Patents

Method of improving channel quality feedback Download PDF

Info

Publication number
WO2016120728A3
WO2016120728A3 PCT/IB2016/000266 IB2016000266W WO2016120728A3 WO 2016120728 A3 WO2016120728 A3 WO 2016120728A3 IB 2016000266 W IB2016000266 W IB 2016000266W WO 2016120728 A3 WO2016120728 A3 WO 2016120728A3
Authority
WO
WIPO (PCT)
Prior art keywords
channel quality
present
quality feedback
improving channel
transmission mode
Prior art date
Application number
PCT/IB2016/000266
Other languages
French (fr)
Other versions
WO2016120728A2 (en
Inventor
Qinglin Luo
Min Zhang
Tao Yang
Original Assignee
Alcatel Lucent
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel Lucent filed Critical Alcatel Lucent
Publication of WO2016120728A2 publication Critical patent/WO2016120728A2/en
Publication of WO2016120728A3 publication Critical patent/WO2016120728A3/en

Links

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
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • 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
    • H04B7/0641—Differential feedback
    • 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
    • H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme
    • 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
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0039—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver other detection of signalling, e.g. detection of TFCI explicit signalling
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector

Abstract

The present invention provides a method of improving channel quality feedback. According to an embodiment of the present invention, it is proposed a method, in a user equipment, of improving channel quality feedback in a non-codebook based 3D MIMO system, the method comprising: transmitting a channel quality indicator of a transmission mode TM2 and a differential indicator to an eNB, the differential indicator indicating a relative gain of another transmission mode relative to the transmission mode TM2. Through the present invention, an accurate CQI feedback is realized for a 3D MIMO TDD system. Meanwhile, the link adaptation for the TDD system according to the present invention does not rely on the open-loop link adaptation mechanism.
PCT/IB2016/000266 2015-01-30 2016-01-26 Method of improving channel quality feedback WO2016120728A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510052051.3A CN105991176B (en) 2015-01-30 2015-01-30 A method of for improving channel-quality feedback
CN201510052051.3 2015-01-30

Publications (2)

Publication Number Publication Date
WO2016120728A2 WO2016120728A2 (en) 2016-08-04
WO2016120728A3 true WO2016120728A3 (en) 2016-10-13

Family

ID=55586342

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2016/000266 WO2016120728A2 (en) 2015-01-30 2016-01-26 Method of improving channel quality feedback

Country Status (3)

Country Link
CN (1) CN105991176B (en)
TW (1) TW201637390A (en)
WO (1) WO2016120728A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108631844B (en) * 2017-03-24 2021-05-18 电信科学技术研究院 Method, terminal and network side equipment for acquiring channel state information

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2627116A1 (en) * 2012-02-13 2013-08-14 Alcatel Lucent Method for selecting a feedback mode for a wireless transmission, first network node, and second network node thereof
US20130301524A1 (en) * 2012-05-11 2013-11-14 Qualcomm Incorporated Methods and apparatus for managing machine-type communications
WO2014123386A1 (en) * 2013-02-08 2014-08-14 Lg Electronics Inc. Method and apparatus for reporting downlink channel state

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8249518B2 (en) * 2003-12-29 2012-08-21 Telefonaktiebolaget Lm Ericsson (Publ) Network controlled feedback for MIMO systems
JP4487768B2 (en) * 2004-12-27 2010-06-23 日本電気株式会社 Radio transmission apparatus and transmission power adjustment method thereof
CN1960568A (en) * 2005-11-03 2007-05-09 北京三星通信技术研究有限公司 Method for reducing data transmission delay of switching sectors
CN101741523B (en) * 2009-12-11 2012-09-19 中国科学技术大学 Method for limiting feedback of feedback code word space threshold of multi-user multi-aerial system
KR101780503B1 (en) * 2010-10-06 2017-09-21 언와이어드 플래넷 인터내셔널 리미티드 Apparatus and method for transmitting and receiving data
EP2509364B1 (en) * 2011-04-08 2013-12-11 Alcatel Lucent Transmission method and mobile station to carry out the method
US8873665B2 (en) * 2012-11-21 2014-10-28 Intel Mobile Communications GmbH Communication devices and methods for receiving data
US20140301298A1 (en) * 2013-04-05 2014-10-09 Qualcomm Incorporated Methods and apparatus for transmission restriction and efficient signaling

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2627116A1 (en) * 2012-02-13 2013-08-14 Alcatel Lucent Method for selecting a feedback mode for a wireless transmission, first network node, and second network node thereof
US20130301524A1 (en) * 2012-05-11 2013-11-14 Qualcomm Incorporated Methods and apparatus for managing machine-type communications
WO2014123386A1 (en) * 2013-02-08 2014-08-14 Lg Electronics Inc. Method and apparatus for reporting downlink channel state

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures (3GPP TS 36.213 version 11.8.0 Release 11)", TECHNICAL SPECIFICATION, EUROPEAN TELECOMMUNICATIONS STANDARDS INSTITUTE (ETSI), 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS ; FRANCE, vol. 3GPP RAN 1, no. V11.8.0, 1 October 2014 (2014-10-01), XP014224224 *

Also Published As

Publication number Publication date
WO2016120728A2 (en) 2016-08-04
CN105991176B (en) 2019-10-11
TW201637390A (en) 2016-10-16
CN105991176A (en) 2016-10-05

Similar Documents

Publication Publication Date Title
EP4294091A3 (en) Methods for performing power control in new radio (nr) systems
EP4236490A3 (en) Power control for new radio uplink single-user multiple-input-multiple- output communication
PH12019500560A1 (en) Autonomous timing adjustment for a wireless device
EP3735797A4 (en) Method for transmitting physical channels, user equipment therefor, method and user equipment for relay transmission
EP4283915A3 (en) Configuring reference signal transmission in wireless communications
WO2018064009A8 (en) Uplink power control
WO2016068542A3 (en) Pucch transmission method by mtc device
WO2013052491A3 (en) Antenna time offset in multiple-input-multiple-output and coordinated multipoint transmissions
MX2019009269A (en) Multi-beam csi reporting.
WO2016072712A3 (en) Method for channel-related feedback and apparatus for same
PL3659288T3 (en) Physical uplink shared channel (pusch) transmission based on robust codebook
WO2012060550A3 (en) Method and apparatus for efficient feedback in wireless communication system supporting multiple antennas
WO2014172091A3 (en) Varying processes to control transmission characteristics for position determination operations
BR112016020503A2 (en) method for reporting state channel information, user equipment, and base station
WO2011129585A3 (en) Method and apparatus for efficient feedback in a wireless communication system that supports multiple antennas
WO2015131494A3 (en) Channel information feedback method, and pilot and beam transmission method, system and device
WO2016149292A8 (en) Wireless communication
WO2008098093A3 (en) Apparatus and method for mimo transmission with explicit and implicit cyclic delays
PH12019502856A1 (en) Uplink data transmission method, and related devices
WO2013142410A3 (en) Systems and methods for signaling and determining transmission time interval bundling parameters
WO2012115362A3 (en) Method of controlling uplink transmission power at ue in wireless communication system and apparatus thereof
WO2019070842A3 (en) Technique for selecting the best frequency for transmission based on changing atmospheric conditions
WO2014160963A3 (en) System and method for generalized multi-carrier frequency division multiplexing
WO2016056166A3 (en) Wireless communication device and communicaton method
MX343098B (en) Antenna reconfiguration for mimo communications when multiplicative noise limited.

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16710807

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16710807

Country of ref document: EP

Kind code of ref document: A2