EP3794785A4 - Eigenvalue-based channel hardening and explicit feedback - Google Patents

Eigenvalue-based channel hardening and explicit feedback Download PDF

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Publication number
EP3794785A4
EP3794785A4 EP18919297.4A EP18919297A EP3794785A4 EP 3794785 A4 EP3794785 A4 EP 3794785A4 EP 18919297 A EP18919297 A EP 18919297A EP 3794785 A4 EP3794785 A4 EP 3794785A4
Authority
EP
European Patent Office
Prior art keywords
eigenvalue
based channel
explicit feedback
channel hardening
hardening
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP18919297.4A
Other languages
German (de)
French (fr)
Other versions
EP3794785A1 (en
Inventor
Xiaomao Mao
Frederick Vook
Rana Ahmed
William J. Hillery
Eugene Visotsky
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Technologies Oy
Original Assignee
Nokia Technologies Oy
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 Nokia Technologies Oy filed Critical Nokia Technologies Oy
Publication of EP3794785A1 publication Critical patent/EP3794785A1/en
Publication of EP3794785A4 publication Critical patent/EP3794785A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • H04B7/0417—Feedback systems
    • H04B7/0421—Feedback systems utilizing implicit feedback, e.g. steered pilot signals
    • 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
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • 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
    • H04B7/0658—Feedback reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • H04L25/0248—Eigen-space methods

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
EP18919297.4A 2018-05-17 2018-05-17 Eigenvalue-based channel hardening and explicit feedback Withdrawn EP3794785A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/087367 WO2019218317A1 (en) 2018-05-17 2018-05-17 Eigenvalue-based channel hardening and explicit feedback

Publications (2)

Publication Number Publication Date
EP3794785A1 EP3794785A1 (en) 2021-03-24
EP3794785A4 true EP3794785A4 (en) 2022-05-04

Family

ID=68539550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18919297.4A Withdrawn EP3794785A4 (en) 2018-05-17 2018-05-17 Eigenvalue-based channel hardening and explicit feedback

Country Status (3)

Country Link
EP (1) EP3794785A4 (en)
CN (1) CN112119617B (en)
WO (1) WO2019218317A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112470412B (en) 2018-08-30 2023-12-26 上海诺基亚贝尔股份有限公司 Frequency domain time domain channel hardening and overhead reduction
WO2020094783A1 (en) * 2018-11-08 2020-05-14 Telefonaktiebolaget Lm Ericsson (Publ) Measurement adaptation based on channel hardening
CN113330728B (en) 2019-01-17 2023-01-10 上海诺基亚贝尔股份有限公司 Overhead reduction for channel state information feedback

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011079294A1 (en) * 2009-12-23 2011-06-30 Qualcomm Incorporated Cluster-specific reference signals for communication systems with multiple transmission points
US20160072562A1 (en) * 2014-09-10 2016-03-10 Samsung Electronics Co., Ltd. Channel state information reporting with basis expansion for advanced wireless communications systems
US20160142115A1 (en) * 2014-11-17 2016-05-19 Samsung Electronics Co., Ltd. Method and apparatus for precoding channel state information reference signal

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101978771B1 (en) * 2013-01-31 2019-05-15 삼성전자주식회사 Method and apparatus for estimating multiple stream multi user cqi based on per stream channel gain feedback in wireless communication system
CN103650400B (en) * 2013-08-21 2017-06-13 华为技术有限公司 A kind of method, the apparatus and system of selection pre-coding matrix instruction
US20150110210A1 (en) * 2013-10-18 2015-04-23 Nokia Solutions And Networks Oy Channel state information acquisition and feedback for full dimension multiple input multiple output
US9893777B2 (en) * 2014-11-17 2018-02-13 Samsung Electronics Co., Ltd. Method and apparatus for precoding channel state information reference signal
WO2016086971A1 (en) * 2014-12-02 2016-06-09 Nokia Solutions And Networks Management International Gmbh Coded allocation of channel state information reference signals
CN107294880B (en) * 2016-03-31 2020-07-31 上海诺基亚贝尔股份有限公司 Method and apparatus for determining channel information
WO2018064801A1 (en) * 2016-10-08 2018-04-12 Nokia Technologies Oy Explicit channel state information feedback

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011079294A1 (en) * 2009-12-23 2011-06-30 Qualcomm Incorporated Cluster-specific reference signals for communication systems with multiple transmission points
US20160072562A1 (en) * 2014-09-10 2016-03-10 Samsung Electronics Co., Ltd. Channel state information reporting with basis expansion for advanced wireless communications systems
US20160142115A1 (en) * 2014-11-17 2016-05-19 Samsung Electronics Co., Ltd. Method and apparatus for precoding channel state information reference signal

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JIN YINGNI ET AL: "A New Design and Multiport Performance Evaluation for 3D Massive MIMO System", 2016 IEEE 84TH VEHICULAR TECHNOLOGY CONFERENCE (VTC-FALL), IEEE, 18 September 2016 (2016-09-18), pages 1 - 5, XP033078701, DOI: 10.1109/VTCFALL.2016.7880862 *
See also references of WO2019218317A1 *

Also Published As

Publication number Publication date
WO2019218317A1 (en) 2019-11-21
CN112119617B (en) 2023-04-25
CN112119617A (en) 2020-12-22
EP3794785A1 (en) 2021-03-24

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