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. 17, 2018
Filed:
Oct. 21, 2011
Marvin Bienn, Dallas, TX (US);
Gary Stephens, Richardson, TX (US);
Marvin Bienn, Dallas, TX (US);
Gary Stephens, Richardson, TX (US);
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
An Anchor Mobile Switching Center emulation (MSCe) and a Target MSCe are described herein that take part in an intersystem handoff of a Mobile Station (MS) which is in communication with a B-party. Upon the MS establishing a connection with the Target MSCe, the Anchor MSCe may perform SDP offer/answer exchange between the Target network and the B-Party for the purpose of codec renegotiation to correct a transcoding incompatibility or to enhance the voice bearer path characteristics or to minimize the number of transcodings in the bearer path, between the two parties. The Anchor MSCe and the Target MSCe both support Advanced Legacy Mobile Station Domain (ALMSD) implying that only the SIP transport is used for intersystem handoff communications.