Invention Grant
- Patent Title: Determination of appropriate radio resource to be requested in case of a circuit-switched (CS) fallback procedure
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Application No.: US15387157Application Date: 2016-12-21
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Publication No.: US10172045B2Publication Date: 2019-01-01
- Inventor: Rene Faurie , Claude Jean-Frederic Arzelier
- Applicant: BlackBerry Limited
- Applicant Address: CA Waterloo, Ontario
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Waterloo, Ontario
- Agency: Fish & Richardson P.C.
- Priority: EP09306075 20091109
- Main IPC: H04W36/00
- IPC: H04W36/00 ; H04W68/02 ; H04W68/00 ; H04W68/12 ; H04W72/04

Abstract:
A system and method for implementing fallback on a wireless device for circuit switched fallback from a first network that does not provide a circuit switched domain service is presented. A paging message is received from the first network. The paging message instructs the wireless device to implement circuit switched fallback to a circuit switched network. The paging message is inspected for information indicative of a service associated with the paging message, and a channel type suitable for the service is determined from the information indicative of the service. A request message for initiating the establishment of a radio connection is transmitted. The request message identifies the suitable channel type, and the service is used on the circuit switched network.
Public/Granted literature
Information query