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:
Feb. 09, 2021
Filed:
Feb. 14, 2017
Datang Mobile Communications Equipment Co., Ltd., Beijing, CN;
DATANG MOBILE COMMMUNICATIONS EQUIPMENT CO., LTD., Beijing, CN;
Abstract
The invention relates to the technical field of communications, and more particularly, to a method and device for realizing synchronization. The method comprises: performing, by a base station, and according to an SRS signal transmitted by a terminal, filtering to obtain a RRU channel having the maximum receiving power in a current operation; upon determining that the RRU channel having the maximum receiving power in the current operation is different from a RRU channel used in the currently performed demodulation, refraining from performing immediate switching; and permitting switching of the RRU channel only when the receiving power of the RRU channel is determined to match the maximum threshold of a preset series of thresholds, and transmitting a TA command word to the terminal while switching the RRU channel to complete synchronization with the terminal. The invention prevents a terminal from frequently switching between RRU channels on a subframe basis. Moreover, a TA command word is transmitted while switching is being performed, thereby preventing a problem in which when a change in a RRU channel occurs, a TA command word is not received by a terminal for a long time, resulting in an asynchronous operation.