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. 16, 2024
Filed:
Oct. 04, 2022
Apple Inc., Cupertino, CA (US);
Yifan Zhu, San Jose, CA (US);
Vijay Venkataraman, San Jose, CA (US);
Viswanath Nagarajan, San Jose, CA (US);
Sang Ho Baek, Palo Alto, CA (US);
Lakshmi N. Kavuri, Cupertino, CA (US);
Utkarsh Kumar, Fremont, CA (US);
Krisztian Kiss, Hayward, CA (US);
Shivani Suresh Babu, San Jose, CA (US);
Srinivasan Nimmala, San Jose, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Techniques are disclosed relating to handover of WLAN voice calls to one or more cellular networks. In some embodiments, a device is configured to perform voice communications over one or more wireless local area networks, communicate with a first network using a first cellular radio access technology (RAT), and communicate with a second network using a second cellular RAT. The device may store, based on communications via the first network, information indicating that the first network does not support voice communications for the apparatus. The device may handover a voice call from a wireless local network directly to the second cellular RAT, based on the stored information and without handover of the voice call to the first cellular RAT, based on call conditions on the wireless local area network.