Title:
METHOD AND DEVICE FOR PERFORMING COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/215901
Kind Code:
A1
Abstract:
A method and a device for performing communication in a wireless communication system are disclosed. A method in which a terminal performs communication according to one embodiment of the present disclosure comprises the steps of: receiving, from a base station, first satellite ephemeris information related to a first satellite and information related to a first validity duration corresponding to the first satellite; and on the basis of second satellite ephemeris information related to the first satellite being received from the base station while a first validity timer having the first validity duration is in operation, restarting the first validity timer, wherein the terminal may acquire a first TA for the first satellite on the basis of the first satellite ephemeris information before the validity timer restarts, expires, or stops after starting on the basis of the first validity duration, and the terminal may acquire a second TA for the first satellite on the basis of the second satellite ephemeris information before the first validity timer expires or stops after restarting on the basis of a second validity duration.
Inventors:
SHIN SEOKMIN (KR)
PARK HAEWOOK (KR)
KIM KIJUN (KR)
YANG SUCKCHEL (KR)
PARK HAEWOOK (KR)
KIM KIJUN (KR)
YANG SUCKCHEL (KR)
Application Number:
PCT/KR2022/003915
Publication Date:
October 13, 2022
Filing Date:
March 21, 2022
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04B7/185; G01S19/27; H04W56/00; H04W84/06
Domestic Patent References:
| WO2020034576A1 | 2020-02-20 |
Other References:
MODERATOR (THALES): "FL Summary on enhancements on UL time and frequency synchronization for NR", 3GPP DRAFT; R1-2102182, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210125 - 20210205, 5 February 2021 (2021-02-05), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051977744
LG ELECTRONICS: "Discussions on UL time and frequency synchronization enhancements in NTN", 3GPP DRAFT; R1-2100704, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210125 - 20210205, 19 January 2021 (2021-01-19), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051971159
THALES, RAKUTEN MOBILE: "Considerations on UL timing and frequency synchronization in NTN", 3GPP DRAFT; R1-2100520, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210125 - 20210205, 15 January 2021 (2021-01-15), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051973292
MEDIATEK, EUTELSAT: "UE Time and frequency Synchronisation for NR-NTN", 3GPP DRAFT; R1-2100595, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. 20210125 - 20210205, 19 January 2021 (2021-01-19), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051971066
LG ELECTRONICS: "Discussions on UL time and frequency synchronization enhancements in NTN", 3GPP DRAFT; R1-2100704, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210125 - 20210205, 19 January 2021 (2021-01-19), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051971159
THALES, RAKUTEN MOBILE: "Considerations on UL timing and frequency synchronization in NTN", 3GPP DRAFT; R1-2100520, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210125 - 20210205, 15 January 2021 (2021-01-15), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051973292
MEDIATEK, EUTELSAT: "UE Time and frequency Synchronisation for NR-NTN", 3GPP DRAFT; R1-2100595, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. 20210125 - 20210205, 19 January 2021 (2021-01-19), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051971066
Attorney, Agent or Firm:
CHOE, Yun Seo et al. (KR)
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