US 12,464,414 B2
Enhanced voice call establishment with network slicing applications
Nabil Akdim, Munich (DE); Gencer Cili, San Jose, CA (US); Lakshmi N. Kavuri, Cupertino, CA (US); Madhavi Duvvuru, Saratoga, CA (US); and Rawad Rahme, Munich (DE)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Aug. 4, 2023, as Appl. No. 18/365,353.
Prior Publication US 2025/0048191 A1, Feb. 6, 2025
Int. Cl. H04W 36/00 (2009.01)
CPC H04W 36/00222 (2023.05) [H04W 36/0058 (2018.08)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
initiating an application on a user equipment (UE), wherein the application utilizes a network slice via a packet data network (PDN) connection with a first cellular network, wherein the first cellular network supports network slicing and voice over new radio (VoNR), and wherein one or more cells of the first cellular network support evolved packet system (EPS) fallback procedures;
receiving or initiating a voice call with another UE;
adjusting one or more capabilities of the UE such that an EPS fallback procedure is deemphasized, wherein the EPS fallback procedure is associated with a transition to a second cellular network that does not support network slicing; and
receiving signaling from the first cellular network to establish, based at least in part on the one or more capabilities of the UE that have been adjusted, the voice call as a VoNR call via the first cellular network, wherein the network slice is maintained during the VoNR call.