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:
Apr. 24, 2001
Filed:
Feb. 05, 1999
Eric Valentine, Plano, TX (US);
Lee Davidson, McKinney, TX (US);
Ericsson Inc., Richardson, TX (US);
Abstract
A method of sending a short message service (SMS) message to a mobile station operating within a Global System for Mobile Communications (GSM) radio telecommunications network which utilizes a satellite air interface link. A paging server is implemented in the network and interfaced with a mobile switching center/visitor location register (MSC/VLR) serving the mobile station. When a SMS service center receives a mobile-terminating SMS message, it sends the message to the paging server. The paging server stores a copy of the message and sends the message from the paging server to the MSC/VLR. The MSC/VLR makes a first attempt to deliver the message to the mobile station via the satellite air interface radio link. If the SMS service center times out before receiving an acknowledgment that the message was delivered, the service center sends the message to the paging server a second time. Upon receipt, the paging server determines whether the message received the second time has already been sent to the MSC/VLR. If so, the paging server discards the message received the second time. If the message received the second time is a new message, the paging server forwards the message to the MSC/VLR for delivery.