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:
Jun. 19, 2018
Filed:
Aug. 13, 2014
Yulong Computer Telecommunication Scientific (Shenzhen) Co., Ltd., Shenzhen, CN;
Yan-Tao Zhong, Shenzhen, CN;
Abstract
A switching method and system between heterogeneous networks are provided. In the switching method: a terminal sends identity information and a network access identifier to a home subscriber server (HSS) through a mobile management entity; the HSS sends the network access identifier to an access gateway, receives a seed key, sends the seed key to the terminal, calculates and sends a local key and a local identifier to an authentication, authorization and accounting (AAA) server; the terminal calculates a second handoff key and a second handoff identifier; and the AAA server sends a calculated first handoff key to an access point of the target network, for the access point and the terminal to execute a network switching operation. Communication traffic of a re-authentication process can be effectively decreased when a cellular network is switched to a WLAN, thereby decreasing time delay of re-authentication and increasing probability of success in switching.