Title:
SYNCHRONIZATION METHOD AND APPARATUS IN SATELLITE NETWORK
Document Type and Number:
WIPO Patent Application WO/2024/027221
Kind Code:
A9
Abstract:
The present application discloses a synchronization method and apparatus in a satellite network, which are used for providing an uplink and downlink synchronization update scheme of a terminal for an uplink and downlink out-of-synchronization problem of the terminal caused by a change in a satellite location when the satellite which provides beam coverage for a region to which the terminal belongs changes and a cell identity does not change. The method provided in the present application comprises: determining that a cell identity of a first satellite cell is the same as that of a second satellite cell, wherein the first satellite cell is a cell of a current service terminal; and performing a synchronization process between the terminal and the second satellite cell according to a time difference of signals between the terminal and a base station by means of the transparency of a first satellite and a second satellite, or according to a propagation latency difference of signals between the terminal and the first satellite and second satellite.
Inventors:
JIA YINAN (CN)
LIANG JING (CN)
SUN JIANCHENG (CN)
XU MENG (CN)
ZHANG XIANGDONG (CN)
LIANG JING (CN)
SUN JIANCHENG (CN)
XU MENG (CN)
ZHANG XIANGDONG (CN)
Application Number:
PCT/CN2023/090399
Publication Date:
March 14, 2024
Filing Date:
April 24, 2023
Export Citation:
Assignee:
DATANG MOBILE COMMUNICATIONS EQUIPMENT CO LTD (CN)
International Classes:
H04W56/00
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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