US 11,729,608 B2
Efficient user plane function selection with S10 roaming
Aeneas Sean Dodd-Noble, Andover, MA (US); Raghavendra Vidyashankar Suryanarayanarao, Bangalore South (IN); Ryo Watanabe, Tokyo (JP); Vivek Agarwal, Chelmsford, MA (US); Rajiv Asati, Morrisville, NC (US); Om Prakash Suthar, Bolingbrook, IL (US); and Santanu Dasgupta, Fremont, CA (US)
Assigned to CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on May 3, 2021, as Appl. No. 17/306,330.
Application 17/306,330 is a continuation of application No. 16/367,627, filed on Mar. 28, 2019, granted, now 11,070,974.
Claims priority of application No. 201841048117 (IN), filed on Dec. 19, 2018.
Prior Publication US 2021/0258771 A1, Aug. 19, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 8/26 (2009.01); H04W 76/12 (2018.01); H04W 4/02 (2018.01); H04W 8/08 (2009.01); H04L 61/4511 (2022.01); H04W 84/04 (2009.01); H04W 76/10 (2018.01)
CPC H04W 8/26 (2013.01) [H04L 61/4511 (2022.05); H04W 4/025 (2013.01); H04W 8/08 (2013.01); H04W 76/12 (2018.02); H04W 76/10 (2018.02); H04W 84/042 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
at a control plane node in a mobile core network that supports inter public land mobile network (PLMN) roaming among two or more PLMNs:
obtaining a create session request from a node in a second PLMN to which a user equipment has roamed from a first PLMN;
selecting a particular user plane node from a list of a plurality of user plane nodes based on roaming and mobile edge computing policies, wherein the particular user plane node is a highest priority user plane node, in the list of the plurality of user plane nodes, that satisfies the roaming and mobile edge computing policies; and
establishing a session with the particular user plane node to serve user plane traffic in the mobile core network for the user equipment.