Title:
METHOD AND APPARATUS FOR CSI CODEBOOK
Document Type and Number:
WIPO Patent Application WO/2023/149730
Kind Code:
A1
Abstract:
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. More particularly, the disclosure relates to apparatuses and methods for channel state information (CSI) codebook. A method for operating a user equipment (UE) includes receiving a configuration about a CSI report. The configuration includes information about N>1 groups of CSI reference signal (CSI- RS) ports and a codebook. The codebook includes a spatial-domain (SD) basis component, a frequency-domain (ED) basis component, and a coefficient component. The SD basis component includes Lr basis vectors for each group r=l,...,N. The ED basis component includes Mv basis vectors. The coefficient component includes coefficients associated with (SD, ED) basis vector pairs. The method further includes, based on the configuration, measuring the N groups of CSI-RS ports and determining the SD basis component, the ED basis component, and the coefficient component such that Ki coef ficients are non-zero and remaining coefficients are zero, where method further includes transmitting the CSI report including an indicator indicating locations of non-zero coefficients.
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Inventors:
LEE GILWON (US)
RAHMAN MD SAIFUR (US)
ONGGOSANUSI EKO (US)
RAHMAN MD SAIFUR (US)
ONGGOSANUSI EKO (US)
Application Number:
PCT/KR2023/001540
Publication Date:
August 10, 2023
Filing Date:
February 02, 2023
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04B7/0456; H04B7/0417; H04B7/06; H04L5/00
Domestic Patent References:
| WO2021028284A1 | 2021-02-18 |
Foreign References:
| US20210044340A1 | 2021-02-11 |
Other References:
ERICSSON: "CSI enhancements for Multi-TRP and FR1 FDD reciprocity", 3GPP DRAFT; R1-2105807, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Online; 20210510 - 20210527, 12 May 2021 (2021-05-12), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP052011728
SAMSUNG: "Views on Rel-17 CSI enhancements", 3GPP DRAFT; R1-2103828, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210412 - 20210420, 12 April 2021 (2021-04-12), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051995160
RAHMAN MD SAIFUR; ONGGOSANUSI EKO; SI HONGBO; CHO JOONYOUNG: "CSI feedback based on space-frequency compression", 2020 IEEE 17TH ANNUAL CONSUMER COMMUNICATIONS & NETWORKING CONFERENCE (CCNC), IEEE, 10 January 2020 (2020-01-10), pages 1 - 6, XP033745340, DOI: 10.1109/CCNC46108.2020.9045228
SAMSUNG: "Views on Rel-17 CSI enhancements", 3GPP DRAFT; R1-2103828, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210412 - 20210420, 12 April 2021 (2021-04-12), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051995160
RAHMAN MD SAIFUR; ONGGOSANUSI EKO; SI HONGBO; CHO JOONYOUNG: "CSI feedback based on space-frequency compression", 2020 IEEE 17TH ANNUAL CONSUMER COMMUNICATIONS & NETWORKING CONFERENCE (CCNC), IEEE, 10 January 2020 (2020-01-10), pages 1 - 6, XP033745340, DOI: 10.1109/CCNC46108.2020.9045228
Attorney, Agent or Firm:
KWON, Hyuk-Rok et al. (KR)
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