Methods, apparatus and electronic devices for absolute time synchronization

US11272471B2 · kind B2 · utility

Assignee

• BEIJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS · CN

Inventors

• Xiangming Wen · Beijing, CN
• Chenyu Zhang · Changsha, CN
• Wei Zheng · Beijing, CN
• Zhaoming Lu · Beijing, CN
• Zhengying Wang · Beijing, CN
• Cong Li · Shanghai, CN

Key dates

• Filing date: Oct 1, 2020
• Grant date: Mar 8, 2022
• Expiry date: Oct 1, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04J3/0697
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Embodiments of the present disclosure disclose a method, an apparatus, and an electronic device for an absolute time synchronization, the method comprising: receiving, from a baseband processing chip, a first timing signaling and a first real system frame information of the received first timing signaling, the first timing signaling comprising a first absolute time corresponding to local time of a base station at time of transmission of the first timing signaling, and a first reference system frame information used by the base station for transmitting the first timing signaling; calculating a first time delay between the base station and the terminal based on at least the first absolute time, if the first real system frame information is consistent with the first reference system frame information; receiving, from the baseband processing chip, subsequent timing signalings and corresponding second real system frame information used by the base station for transmitting the subsequent timing signalings to the terminal, the subsequent timing signalings each comprising a second absolution time corresponding to the local time of the base station at time of transmission of the subsequent …