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:
Feb. 28, 2012
Filed:
Apr. 28, 2009
Mikio Iwamura, Yokohama, JP;
Hiroaki Yamagishi, Yokohama, JP;
Mikio Iwamura, Yokohama, JP;
Hiroaki Yamagishi, Yokohama, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
When a mobile station (UE) is camping on a system of the LTE scheme, a function (EMM) is configured to transmit a service request signal including a 'CSFB' to an MME; the NNE is configured to transmit setup information including a 'CSFB' to an eNB in response to the service request signal transmitted by the function (EMM); the eNB is configured to transmit, to a function (AS), instruction information instructing to select a cell in a system of the WCDMA/GSM scheme in response to the setup information transmitted by the MME; the function (AS) is configured to select the cell in the system of the WCDMA/GSM scheme in accordance with the instruction information transmitted by the eNB; and the function (MM) is configured to set up circuit switched communications via the cell in the system of the WCDMA/GSM scheme selected by the function (AS).