US 11,722,568 B2
Methods providing dynamic NEF tunnel allocation and related network nodes/functions
Hans Bertil Rönneke, Kungsbacka (SE); Qian Chen, Mölndal (SE); and Stefan Rommer, Västra Frölunda (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/277,937
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Aug. 5, 2019, PCT No. PCT/EP2019/071036
§ 371(c)(1), (2) Date Mar. 19, 2021,
PCT Pub. No. WO2020/069785, PCT Pub. Date Apr. 9, 2020.
Claims priority of provisional application 62/741,179, filed on Oct. 4, 2018.
Prior Publication US 2022/0131941 A1, Apr. 28, 2022
Int. Cl. H04L 67/141 (2022.01); H04W 76/10 (2018.01); H04L 12/46 (2006.01)
CPC H04L 67/141 (2013.01) [H04L 12/4633 (2013.01); H04W 76/10 (2018.02)] 8 Claims
OG exemplary drawing
 
1. A method of operating a Session Management Function (SMF) node of a wireless communication network, the method comprising:
receiving a request to create a session for a wireless device (UE);
transmitting a communication establishment request to a Network Exposure Function (NEF) node responsive to receiving the request to create the session for the wireless device, wherein the communication establishment request includes User Plane Function (UPF) node information for a tunnel between a UPF node and the NEF node to be used for the session for the wireless device;
receiving a communication establishment response from the NEF node, wherein the communication establishment response includes NEF node information for the tunnel between the UPF node and the NEF node to be used for the session for the wireless device; and
transmitting a tunnel information update to the UPF node after receiving the communication establishment response, wherein the tunnel information update includes the NEF node information for the tunnel between the UPF node and the NEF node.