US 12,452,767 B2
Method and apparatus for route aggregation handling for control and user plane separation
Abhishek Mishra, Karnataka (IN); Vipin Padlikar, Karnataka (IN); Rohit Gupta, Karnataka (IN); and Tamanna Jindal, McKinney, TX (US)
Assigned to Mavenir Systems, Inc., Richardson, TX (US)
Filed by MAVENIR SYSTEMS, INC., Richardson, TX (US)
Filed on Aug. 12, 2022, as Appl. No. 17/886,582.
Claims priority of application No. 202121037889 (IN), filed on Aug. 20, 2021.
Prior Publication US 2023/0055358 A1, Feb. 23, 2023
Int. Cl. H04W 40/30 (2009.01); H04W 40/06 (2009.01); H04W 40/24 (2009.01)
CPC H04W 40/30 (2013.01) [H04W 40/06 (2013.01); H04W 40/248 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of route aggregation handling for 3rd Generation Partnership Project (3GPP) Control Plane and User Plane Separation (CUPS) architecture, comprising:
allocating, by a Control Plane (CP) node, an Internet Protocol (IP) Address from an IP pool to a selected User Equipment (UE) for a Packet Data Unit (PDU) session;
performing, by a User Plane (UP) node, data traffic routing between an internet service provider (ISP) and the UE;
sending, by the CP node to the UP node during one of a start or update of an association between the CP node and the UP node, one of: i) transmission routes to be used for the data traffic routing between the ISP and the UE; or ii) transmission routes to be deleted for the data traffic routing between the ISP and the UE; and
in the case of a UP path failure involving the UP node, sending by a standby UP node to the CP node an association update request for the transmission routes to be used for the data traffic routing between the ISP and the UE.