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:
Oct. 28, 2025
Filed:
Aug. 05, 2021
Huawei Technologies Co., Ltd., Shenzhen, CN;
Yongbo Zeng, Shenzhen, CN;
Hongcheng Zhuang, Shenzhen, CN;
Cheng Qin, Beijing, CN;
Tao Guo, Xi'an, CN;
Hui Jin, Shenzhen, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A communication method includes a terminal device having a dual-card function that obtains, before passing through a target section and from a network device, network status information of the target section through which the terminal device is about to pass, and determines, in advance based on the network status information, a target subscriber identity module (SIM) card used when the terminal device passes through the target section. Subsequently, before or when the terminal device passes through the target section, the terminal device can switch to the target SIM card in advance for communication.