SCHEMES ON EPOCH TIME INDICATION IN NON-TERRESTRIAL NETWORK

Apparatus and methods are provided for determining epoch time in an NTN system resolving the SFN wrapping issue. In one novel aspect, the UE obtains epoch time information, determines the epoch-time SFN by selecting one SFN instance with the SFN value indicated in the epoch time information based on...

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Bibliographic Details
Main Authors Medles, Abdelkader, Tang, Wen, Jie, Mingwei, Zhu, Xuancheng, Wang, Xuan, Charbit, Gilles
Format Patent
LanguageEnglish
Published 12.10.2023
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
WIRELESS COMMUNICATIONS NETWORKS
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Summary:Apparatus and methods are provided for determining epoch time in an NTN system resolving the SFN wrapping issue. In one novel aspect, the UE obtains epoch time information, determines the epoch-time SFN by selecting one SFN instance with the SFN value indicated in the epoch time information based on one or more epoch-time rules, wherein the epoch-time rules resolve epoch-time SFN ambiguity indicated by the received epoch time information, and derives the epoch time based on the determined epoch-time SFN. In one embodiment, the epoch-time SFN is determined based on the receiving-SFN/SIBx and the SFN value of the epoch-time. The epoch-time SFN is a current or next upcoming SFN with the epoch-time SFN value after the receiving-SFN. The epoch-time SFN is a nearest SFN to the receiving-SFN with the epoch-time SFN value.
Bibliography:Application Number: US202318189132