Title:
METHOD AND APPARATUS TO ENABLE CSI REPORTING IN WIRELESS COMMUNICATION SYSTEMS
Document Type and Number:
WIPO Patent Application WO/2020/209552
Kind Code:
A1
Abstract:
A method for operating a user equipment (UE) comprises, in response to a condition being satisfied, selecting, from a full basis set, a basis subset comprising M
ι bases for each layer ι of a plurality of ν layers; in response to the condition not being satisfied, selecting, from the full basis set, an intermediate basis set comprising N' bases that are common among the plurality of ν layers, and selecting, from the selected intermediate basis set, the basis subset comprising M
ι bases for each layer ι of the plurality of ν layers; transmitting, to a base station (BS), for each layer ι of the plurality of ν layers, an indicator i
1,6,ι indicating indices of the M
ι bases included in the selected basis subset; and based on the condition not being satisfied, transmitting, to the BS, an indicator i
1,5 indicating indices of the N' bases included in the selected intermediate basis set.
Inventors:
RAHMAN MD SAIFUR (US)
ONGGOSANUSI EKO (US)
ONGGOSANUSI EKO (US)
Application Number:
PCT/KR2020/004591
Publication Date:
October 15, 2020
Filing Date:
April 03, 2020
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04B7/06; H04B7/0417; H04B7/0456
Foreign References:
| US20180145737A1 | 2018-05-24 | |||
| US201715490561A | 2017-04-18 | |||
| US201816045543A | 2018-07-25 |
Other References:
SAMSUNG: "Feature lead summary for MU-MIMO CSI", 3GPP DRAFT; R1-1904448 R16 SUMMARY MUCSI, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Xi’an, China; 20190412 - 20190416, R1-1904448 R16 Summary MUCSI, 8 April 2019 (2019-04-08), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051707224
MOTOROLA MOBILITY / LENOVO: "MU-MIMO CSI Enhancement", 3GPP DRAFT; R1-1905681 MU-CSI ENHANCEMENT, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Xi’an, China; 20190408 - 20190412, R1-1905681 MU-CSI Enhancement, 9 April 2019 (2019-04-09), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051707740
ERICSSON: "On CSI enhancements for MU-MIMO", 3GPP DRAFT; R1-1905519, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, R1-1905519 On CSI enhancements for MU-MIMO revised, 12 April 2019 (2019-04-12), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, pages 1 - 13, XP051707583
SPREADTRUM COMMUNICATIONS: "Discussion on Type II CSI overhead reduction", 3GPP DRAFT; R1-1904780 DISCUSSION ON TYPE II CSI OVERHEAD REDUCTION, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Xi’an, China; 20190408 - 20190412, R1-1904780 Discussion on Type II CSI overhead redu, 29 March 2019 (2019-03-29), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051691764
"E-UTRA, Physical channels and modulation", 3GPP TS 36.211
"E-UTRA, Multiplexing and Channel coding", 3GPP TS 36.212
"UTRA, Physical Layer Procedures", 3GPP TS 36.213
"E-UTRA, Medium Access Control (MAC) protocol specification", 3GPP TS 36.321
"E-UTRA, Radio Resource Control (RRC) protocol specification", 3GPP TS 36.331
3GPP TR 22.891
"E-UTRA, NR, Physical channels and modulation", 3GPP TS 38.211
"E-UTRA, NR, Physical Layer Procedures for control", 3GPP TS 38.213
"E-UTRA, NR, Physical layer procedures for data", 3GPP TS 38.214
"E-UTRA, NR, Multiplexing and channel coding", 3GPP TS 38.212
See also references of EP 3925095A4
MOTOROLA MOBILITY / LENOVO: "MU-MIMO CSI Enhancement", 3GPP DRAFT; R1-1905681 MU-CSI ENHANCEMENT, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Xi’an, China; 20190408 - 20190412, R1-1905681 MU-CSI Enhancement, 9 April 2019 (2019-04-09), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051707740
ERICSSON: "On CSI enhancements for MU-MIMO", 3GPP DRAFT; R1-1905519, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, R1-1905519 On CSI enhancements for MU-MIMO revised, 12 April 2019 (2019-04-12), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, pages 1 - 13, XP051707583
SPREADTRUM COMMUNICATIONS: "Discussion on Type II CSI overhead reduction", 3GPP DRAFT; R1-1904780 DISCUSSION ON TYPE II CSI OVERHEAD REDUCTION, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Xi’an, China; 20190408 - 20190412, R1-1904780 Discussion on Type II CSI overhead redu, 29 March 2019 (2019-03-29), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051691764
"E-UTRA, Physical channels and modulation", 3GPP TS 36.211
"E-UTRA, Multiplexing and Channel coding", 3GPP TS 36.212
"UTRA, Physical Layer Procedures", 3GPP TS 36.213
"E-UTRA, Medium Access Control (MAC) protocol specification", 3GPP TS 36.321
"E-UTRA, Radio Resource Control (RRC) protocol specification", 3GPP TS 36.331
3GPP TR 22.891
"E-UTRA, NR, Physical channels and modulation", 3GPP TS 38.211
"E-UTRA, NR, Physical Layer Procedures for control", 3GPP TS 38.213
"E-UTRA, NR, Physical layer procedures for data", 3GPP TS 38.214
"E-UTRA, NR, Multiplexing and channel coding", 3GPP TS 38.212
See also references of EP 3925095A4
Attorney, Agent or Firm:
LEE, Keon-Joo et al. (KR)
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