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. 31, 2015
Filed:
Dec. 31, 2012
Huawei Technologies Co., Ltd, Shenzhen, CN;
Yuanyuan Zhang, Nanjing, CN;
Peiyu Yue, Nanjing, CN;
Teng Shi, Nanjing, CN;
Yonghui Tian, Nanjing, CN;
Guangyuan Liu, Shenzhen, CN;
Chuxiong Zhang, Nanjing, CN;
Renzhou Zhang, Nanjing, CN;
Weizhong Yuan, Shenzhen, CN;
Lingyan Wu, Nanjing, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
Embodiments of the present invention disclose a method, apparatus and system for obtaining key information during fast channel switching. A fast channel switching request sent by a terminal is received; at least one data unit bearing key information is generated according to the fast channel switching request; a fast channel switching response message is sent to the terminal, where the response message carries an identifier of a first data unit bearing the key information and the number of data units bearing the key information; and the at least one data unit bearing the key information is sent to the terminal. When the key information is lost, the key information is retransmitted without a need to perform status maintenance, which improves scalability of fast channel switching.