US 11,870,844 B2
Service area based DNS
Apostolis Salkintzis, Athens (GR); Genadi Velev, Darmstadt (DE); and Dimitrios Karampatsis, Ruislip (GB)
Assigned to Lenovo (Singapore) Pte. Ltd., New Tech Park (SG)
Appl. No. 17/770,927
Filed by Lenovo (Singapore) PTE. LTD., New Tech Park (SG)
PCT Filed Oct. 21, 2019, PCT No. PCT/EP2019/078601
§ 371(c)(1), (2) Date Apr. 21, 2022,
PCT Pub. No. WO2021/078360, PCT Pub. Date Apr. 29, 2021.
Prior Publication US 2022/0394088 A1, Dec. 8, 2022
Int. Cl. H04L 67/1021 (2022.01); H04L 61/5007 (2022.01); H04L 67/52 (2022.01); H04L 61/4511 (2022.01)
CPC H04L 67/1021 (2013.01) [H04L 61/4511 (2022.05); H04L 61/5007 (2022.05); H04L 67/52 (2022.05)] 19 Claims
OG exemplary drawing
 
1. An apparatus in a mobile communication network, the apparatus comprising:
a transceiver; and
a processor that:
receives a first request from a function in the mobile communication network including a UE identity and a UE network address;
determines whether the UE is located in a first service area based on a UE location;
forwards a DNS request received from the UE network address to a first DNS server associated with the first service area in response to determining that the UE is located in the first service area;
receives a DNS reply from the first DNS server; and
sends a second request to a policy function in the mobile communication network in response to determining that the DNS reply includes a first IP address.