The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 2020
Filed:
Dec. 18, 2017
Lockheed Martin Corporation, Bethesda, MD (US);
Xiangdong Liu, Boyds, MD (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
A method for of communication in a satellite LTE network by a satellite base station includes transmitting to a terminal device in a satellite beam of the satellite base station a frame having embedded timing information. The timing information includes a lowest delay time associated with the satellite beam. An uplink acquisition message is received from the terminal device. The uplink acquisition message is received with a first timing advance (TA) value estimated by the terminal device based on the lowest delay time. An arrival time associated with the uplink acquisition message is estimated, and a second TA value is determined based on the estimated arrival time. The terminal device uses the sum of first TA and second TA to adjust its timing in subsequent transmissions.