Title:
SYSTEMS AND PROCEDURES OF NON-TERRESTRIAL NETWORK TIMING RELATIONSHIP
Document Type and Number:
WIPO Patent Application WO/2023/044703
Kind Code:
A1
Abstract:
Methods, apparatuses, and systems are disclosed for enhancing timing relationships in non-terrestrial networks (NTNs), e.g., by managing timing offset values and intelligently handling reporting failure relating to timing information reporting. To accommodate increased propagation delay in NTNs, a user equipment (UE) may supplement its timing advance (TA) value with component values representing roundtrip times to the satellite. The UE may maintain both open-loop and closed-loop portions of the TA value, and may report the TA value, or components thereof, to the network for timing synchronization. Methods and systems are also disclosed for failure handling in this reporting process.
Inventors:
YE CHUNXUAN (US)
ZHANG DAWEI (US)
SUN HAITONG (US)
HE HONG (US)
CUI JIE (US)
OTERI OGHENEKOME (US)
NUGGEHALLI PAVAN (US)
VANGALA SARMA V (US)
ZENG WEI (US)
ZHANG YUSHU (CN)
ZHANG DAWEI (US)
SUN HAITONG (US)
HE HONG (US)
CUI JIE (US)
OTERI OGHENEKOME (US)
NUGGEHALLI PAVAN (US)
VANGALA SARMA V (US)
ZENG WEI (US)
ZHANG YUSHU (CN)
Application Number:
PCT/CN2021/120114
Publication Date:
March 30, 2023
Filing Date:
September 24, 2021
Export Citation:
Assignee:
APPLE INC (US)
ZHANG YUSHU (CN)
ZHANG YUSHU (CN)
International Classes:
H04W24/02; H04W68/02; H04W56/00; H04W74/08
Domestic Patent References:
| WO2021164579A1 | 2021-08-26 | |||
| WO2021139665A1 | 2021-07-15 | |||
| WO2021022442A1 | 2021-02-11 |
Foreign References:
| US20210289460A1 | 2021-09-16 | |||
| CN113382440A | 2021-09-10 |
Other References:
MODERATOR (SONY): "FL summary 2 of AI 8.15.2: Timing relationships for IoT-NTN", 3GPP DRAFT; R1-2108350, vol. RAN WG1, 19 August 2021 (2021-08-19), pages 1 - 49, XP052042152
3GPP TS 38.533
3GPP TS 38.533
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
Download PDF: