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. 20, 2012
Filed:
Nov. 27, 2006
Yigang Cai, Naperville, IL (US);
Sheng Chen, Beijing, CN;
Qinghong He, Beijing, CN;
Ling Jiang, Beijing, CN;
KE Pei, Beijing, CN;
Judith A. Stafford, Naperville, IL (US);
Jie Su, Beijing, CN;
Ya Ping Wu, Beijing, CN;
Chao Liang Zhang, Beijing, CN;
Yigang Cai, Naperville, IL (US);
Sheng Chen, Beijing, CN;
Qinghong He, Beijing, CN;
Ling Jiang, Beijing, CN;
Ke Pei, Beijing, CN;
Judith A. Stafford, Naperville, IL (US);
Jie Su, Beijing, CN;
Ya Ping Wu, Beijing, CN;
Chao Liang Zhang, Beijing, CN;
Alcatel Lucent, Paris, FR;
Abstract
IMS gateway systems and methods are disclosed for providing online charging for IMS sessions. An IMS gateway system described herein operates based on a state machine to provide charging triggers and IMS session control. For one charging trigger, the IMS gateway system transmits an initial credit control request message to an online charging system (OCS) responsive to receiving a session initiation message from a first subscriber of a session. For another charging trigger, the IMS gateway system transmits an update credit control request message to the OCS responsive to receiving a session acceptance message from a second subscriber of the session. For another charging trigger, the IMS gateway system transmits a termination credit control request message to the OCS responsive to receiving a session termination message. The IMS gateway system may trigger on other session control messages or charging messages from the OCS to provide online charging.