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:
Apr. 17, 2018
Filed:
Mar. 26, 2014
Huawei Device (Dongguan) Co., Ltd., Dongguan, CN;
Hongyu Wang, Shenzhen, CN;
Xiang Che, Shanghai, CN;
Qiuliang Xu, Shanghai, CN;
Liping Yang, Shanghai, CN;
Jia Xu, Shanghai, CN;
Zhigang Liu, Beijing, CN;
Zhenyu Liu, Beijing, CN;
HUAWEI DEVICE (DONGGUAN) CO., LTD., Dongguan, CN;
Abstract
Embodiments disclose a radio frequency front-end system and a signal transmission control method. The system includes a first antenna, a second antenna, a first radio frequency circuit, a second radio frequency circuit, and a controller. The controller is configured to acquire a transmission frequency band selected by the first radio frequency circuit, and when a frequency in the transmission frequency band selected by the first radio frequency circuit is less than a preset frequency, to control the first radio frequency circuit to connect to the second antenna. The controller is further configured to disconnect a connection between the second radio frequency circuit and the second antenna, or to maintain an open circuit state between the second radio frequency circuit and the second antenna.