N7 call flow in a standalone architecture

A method for N7 call flow in a standalone architecture, the method comprising:

• determining, by a first Policy Control Function (PCF) for policy management of network resources of a network, a Packet Data Unit (PDU) session exists between a user device and the network, wherein the first PCF is configured to transmit notifications to a second PCF;
• determining, by the first PCF, to transmit policy update information to a Session Management Function (SMF) for management of a network session of the network based on receiving an indication, wherein the SMF is configured to receive notifications from the first PCF and the second PCF;
• based on determining the PDU session exists and determining to transmit the policy update information, transmitting, by the first PCF, the policy update information to the SMF;
• determining, by the first PCF, that the SMF has not received the policy update information;
• and
• transmitting, by the first PCF, the policy update information to the second PFC for transmission to the SMF.

One or more non-transitory computer storage media having computer-executable instructions embodied thereon, that when executed by at least one processor, cause the at least one processor to perform a method for N7 call flow in a standalone architecture, the method comprising:

• transmitting, by a Session Management Function (SMF) for management of a network session of a network, Packet Data Unit (PDU) session information of an existing PDU session for a first Policy Control Function (PCF) for policy management of network resources of the network, the existing PDU session corresponding to packet-based data transmissions between a user device and the network;
• receiving, by the SMF and from a second PCF that is geo-redundant with the first PCF, policy update information corresponding to the existing PDU session, wherein the policy update information is received by the second PCF in response to the first PCF failing to transmit the policy update information to the SMF;
• and
• updating, via the SMF, a policy corresponding to the existing PDU session based on the policy update information received by the second PCF.