Patent ID: 11968640
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The timing advance update method according to claim 1, wherein:
the terminal obtains a transmission delay TA offset based on the round-trip transmission delay change rate and a unidirectional transmission delay between the satellite and the location corresponding to the geocentric angle data: or
the terminal obtains a TA offset based on the round-trip transmission delay change rate, a unidirectional transmission delay between the satellite and the location corresponding to the geocentric angle data, and current TA update period duration, and wherein
a transmission delay TA offset Obtained by the terminal based on the maximum geocentric angle in the geocentric angle data is a maximum transmission delay TA offset, a transmission delay TA offset obtained by the terminal based on the minimum geocentric angle in the geocentric angle data is the minimum transmission delay TA offset, the maximum TA offset is a sum of the maximum transmission delay TA offset and a maximum update period TA offset, and a minimum TA offset is a sum of the minimum transmission delay TA offset and a minimum update period TA offset.