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. 03, 2020
Filed:
Sep. 30, 2014
Apple Inc., Cupertino, CA (US);
Tarik Tabet, San Jose, CA (US);
Farouk Belghoul, Cupertino, CA (US);
Rafael L. Rivera-Barreto, Cupertino, CA (US);
Samy Khay-Ibbat, Cupertino, CA (US);
Sree Ram Kodali, Cupertino, CA (US);
Sarma V. Vangala, Cupertino, CA (US);
Syed A. Mujtaba, Cupertino, CA (US);
Swaminathan Balakrishnan, Cupertino, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
This application discloses various techniques for call establishment using voice-over LTE (VoLTE) in networks supporting time division (TD) and frequency division duplexed (FDD) LTE communication systems. Such techniques can include systems and methods for mobile-originated calls for a UE in a TD-LTE cell, systems and methods for mobile-terminated calls for a connected UE in a TD-LTE cell and systems and methods for mobile-terminated calls for an idle UE in a TD-LTE cell. These methods and systems can leverage component carriers from a carrier aggregating capable UE to facilitate more efficient and/or effective UE call establishment.