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GB2642879A - Beam quality metric based on Gram matrix - Google Patents

Beam quality metric based on Gram matrix

Info

Publication number
GB2642879A
GB2642879A GB2410798.9A GB202410798A GB2642879A GB 2642879 A GB2642879 A GB 2642879A GB 202410798 A GB202410798 A GB 202410798A GB 2642879 A GB2642879 A GB 2642879A
Authority
GB
United Kingdom
Prior art keywords
channel
quality
beam quality
estimated
channel capacity
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.)
Pending
Application number
GB2410798.9A
Other versions
GB202410798D0 (en
Inventor
Medina Daniel
Baracca Paolo
Bazzi Samer
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
Priority to GB2410798.9A priority Critical patent/GB2642879A/en
Publication of GB202410798D0 publication Critical patent/GB202410798D0/en
Priority to PCT/IB2025/057030 priority patent/WO2026022597A1/en
Publication of GB2642879A publication Critical patent/GB2642879A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
    • 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
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • 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
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • H04B7/0696—Determining beam pairs
    • H04B7/06962—Simultaneous selection of transmit [Tx] and receive [Rx] beams at both sides of a link
    • 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
    • H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

This application is concerned with selecting a transmit-receive beam pair at a first apparatus (e.g. a UE) based on a beam quality value. The first apparatus determines the quality value for each of a plurality of transmit-receive beam pairs. The quality value for each beam pair is “associated” with the channel capacity of the channel defined by the beam pair. Channel capacity of a channel is estimated by applying a Gram matrix operation to an estimated channel matrix H for the channel. That is the channel capacity may be defined based on HHH , for example using equation 1. The channel matrix is preferably estimated by measuring a reference signal, such as a CSI-RS, transmitted by second apparatus such as a base station. A beam report 330-335 is transmitted by the UE “based on” the determined beam quality. The beam report may contain an indication of beam quality or alternatively may identify a beam to which the beam quality relates, for example the beam with the best beam quality / channel capacity.
GB2410798.9A 2024-07-24 2024-07-24 Beam quality metric based on Gram matrix Pending GB2642879A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2410798.9A GB2642879A (en) 2024-07-24 2024-07-24 Beam quality metric based on Gram matrix
PCT/IB2025/057030 WO2026022597A1 (en) 2024-07-24 2025-07-10 Beam quality metric based on gram matrix

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2410798.9A GB2642879A (en) 2024-07-24 2024-07-24 Beam quality metric based on Gram matrix

Publications (2)

Publication Number Publication Date
GB202410798D0 GB202410798D0 (en) 2024-09-04
GB2642879A true GB2642879A (en) 2026-01-28

Family

ID=92542377

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2410798.9A Pending GB2642879A (en) 2024-07-24 2024-07-24 Beam quality metric based on Gram matrix

Country Status (2)

Country Link
GB (1) GB2642879A (en)
WO (1) WO2026022597A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140126620A1 (en) * 2012-11-08 2014-05-08 Alexander Alexandrovich Maltsev Apparatus, system and method of beam selection for beamformed diversity wireless communication
US20150236774A1 (en) * 2014-02-20 2015-08-20 Samsung Electronics Co., Ltd. Method and apparatus for processing feedback information in wireless communication system supporting beamforming
US10879967B2 (en) * 2015-05-27 2020-12-29 Samsung Electronics Co., Ltd. Device and method for transmitting and receiving feedback information in wireless communication system
US20210143879A1 (en) * 2019-11-12 2021-05-13 Samsung Electronics Co., Ltd. Transmission and reception method for multi-modal apparatus in millimeter band

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130127347A (en) * 2012-05-10 2013-11-22 삼성전자주식회사 Method and apparatus for communication on analog and digital hybrid beam-forming
CN108353059A (en) * 2016-05-13 2018-07-31 华为技术有限公司 A kind of information feedback method and site

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140126620A1 (en) * 2012-11-08 2014-05-08 Alexander Alexandrovich Maltsev Apparatus, system and method of beam selection for beamformed diversity wireless communication
US20150236774A1 (en) * 2014-02-20 2015-08-20 Samsung Electronics Co., Ltd. Method and apparatus for processing feedback information in wireless communication system supporting beamforming
US10879967B2 (en) * 2015-05-27 2020-12-29 Samsung Electronics Co., Ltd. Device and method for transmitting and receiving feedback information in wireless communication system
US20210143879A1 (en) * 2019-11-12 2021-05-13 Samsung Electronics Co., Ltd. Transmission and reception method for multi-modal apparatus in millimeter band

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
3GPP TS 38.214 V18.2.0, "3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical layer procedures for data (Release 18)", March 2024. *
ICC 2003. 2003 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS. ANCHORAGE, AK, MAY 11 - 15, 2003, IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, NEW YORK, NY : IEEE, US, vol. VOL. 1 OF 5, 2003, Clerckx B et al., Mutual coupling effects on the channel capacity and the space-time processing of MIMO *

Also Published As

Publication number Publication date
GB202410798D0 (en) 2024-09-04
WO2026022597A1 (en) 2026-01-29

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