US 12,010,089 B2
EPDG selection
Apostolis K. Salkintzis, Athens (GR)
Assigned to Motorola Mobility LLC, Chicago, IL (US)
Filed by Motorola Mobility LLC, Chicago, IL (US)
Filed on Mar. 21, 2022, as Appl. No. 17/700,236.
Application 17/700,236 is a continuation of application No. 16/813,297, filed on Mar. 9, 2020, granted, now 11,283,756.
Application 16/813,297 is a continuation of application No. 15/194,654, filed on Jun. 28, 2016, granted, now 10,587,568, issued on Mar. 10, 2020.
Prior Publication US 2022/0217114 A1, Jul. 7, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 61/45 (2022.01); H04L 61/4511 (2022.01); H04L 61/4541 (2022.01); H04L 101/35 (2022.01); H04W 48/16 (2009.01); H04W 48/18 (2009.01); H04W 48/20 (2009.01); H04W 84/12 (2009.01); H04W 88/16 (2009.01)
CPC H04L 61/4511 (2022.05) [H04L 61/4541 (2022.05); H04W 48/16 (2013.01); H04W 48/18 (2013.01); H04W 48/20 (2013.01); H04L 2101/35 (2022.05); H04W 84/12 (2013.01); H04W 88/16 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A User Equipment (“UE”) for wireless communication, comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the UE to:
transmit a domain name system (“DNS”) query request message based at least in part on a location of the UE being different than a home country, the DNS query request message indicating a country associated with the location of the UE;
receive a DNS query response message based at least in part on the DNS query request message;
receive gateway selection information from a home public land mobile network (“HPLMN”);
determine that gateway selection is not mandated for the country associated with the location of the UE based at least in part on the received DNS query response message containing no records; and
select an evolved packet data gateway (“ePDG”) associated with a visited public land mobile network (“VPLMN”), wherein, in response to the determination that the gateway selection is not mandated, the VPLMN corresponds to a highest priority VPLMN listed in the gateway selection information and located in the country associated with the location of the UE.