US 11,711,685 B2
Support for CUPS PFCP session at UE level for serving gateway
Ganesh Jaju, Pune (IN); and Ketan Parikh, Pune (IN)
Assigned to Parallel Wireless, Inc., Nashua, NH (US)
Filed by Parallel Wireless, Inc., Nashua, NH (US)
Filed on Sep. 21, 2020, as Appl. No. 17/27,519.
Claims priority of provisional application 62/903,366, filed on Sep. 20, 2019.
Prior Publication US 2021/0092585 A1, Mar. 25, 2021
Int. Cl. H04W 8/08 (2009.01); H04W 76/10 (2018.01)
CPC H04W 8/087 (2013.01) [H04W 76/10 (2018.02)] 9 Claims
OG exemplary drawing
 
1. A method comprising:
providing a Packet Forwarding Control Protocol (PFCP) session at a User Equipment (UE) level, wherein the UE level is different from a Packet Data Network (PDN) level, for a Serving Gateway (SGW);
anchoring, by the SGW, the UE session at a session manager at the SGW, the session manager instantiating a data structure including information about the UE and about UE sessions for the UE with multiple PDNs;
handling, by the SGW, buffering of Idle UE and UE Active-to-Idle transitions for the UE sessions;
using, by the SGW, a single PFCP session for the UE sessions across the multiple PDNs; and
using, by the SGW, a same Buffering Action Rule (BAR) for all PDNs associated with the UE sessions.