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:
Mar. 10, 2026
Filed:
Aug. 04, 2021
Huawei Technologies Co., Ltd., Shenzhen, CN;
Wei Huang, Shanghai, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
This application provides a session establishment method, a terminal, and a communication system. A first terminal sends, to a second terminal, a session request message used to request to establish a session; and the second terminal sends a session response message to the first terminal based on the session request message, and start a second timer. The first terminal starts a first timer after receiving the session response message. When the first terminal completes resource reservation for the session before duration recorded by the first timer reaches preset first duration, the first terminal sends a resource reservation completion acknowledgment message to the second terminal. The second terminal sends a ringing message to the first terminal if the second terminal completes resource reservation for the session before duration recorded by the second timer reaches preset second duration. The second duration is longer than the first duration.