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:
Jul. 14, 2020
Filed:
Jan. 29, 2018
Datang Mobile Communications Equipment Co., Ltd, Beijing, CN;
Yujing Fan, Beijing, CN;
Yuetan Chen, Beijing, CN;
DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing, CN;
Abstract
A method and a device for pre-correction of a downlink signal are provided. The method comprises: on the basis of an obtained uplink frequency offset value of a first RRU and a second RRU corresponding to each client, determining a set of uplink frequency offset values corresponding to each RRU; when a downlink pre-correction period is reached, calculating an average uplink frequency offset value of the RRU; and on the basis of the average uplink frequency offset value of the RRU and a downlink pre-correction value in a previous pre-correction period, determining a downlink pre-correction value of the RRU in the current downlink pre-correction period.