US 11,729,656 B2
P-CSCF registration and discovery mechanism
Nassereddine Sabeur, Bellevue, WA (US); Joel Arends, Renton, WA (US); Raymond Thomas Ball, Seattle, WA (US); and Marc A Proctor, Shanwee, KS (US)
Assigned to T-Mobile USA, Inc., Bellevue, WA (US)
Filed by T-Mobile USA, Inc., Bellevue, WA (US)
Filed on Feb. 1, 2021, as Appl. No. 17/164,707.
Prior Publication US 2022/0248253 A1, Aug. 4, 2022
Int. Cl. H04W 28/02 (2009.01); H04W 4/50 (2018.01); H04W 76/10 (2018.01); H04L 67/141 (2022.01); H04W 48/16 (2009.01); H04W 60/00 (2009.01)
CPC H04W 28/0247 (2013.01) [H04L 67/141 (2013.01); H04W 4/50 (2018.02); H04W 48/16 (2013.01); H04W 60/00 (2013.01); H04W 76/10 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by at least one network node and from a Proxy Call Session Control Function (P-CSCF) associated with a network, a P-CSCF configuration file, the P-CSCF configuration file identifying at least one service provided by the P-CSCF, the P-CSCF configuration file identifying at least one service availability indicating at least one of whether the P-CSCF is accepting attach requests for the at least one service, or whether the P-CSCF is able to handle a bandwidth required to process traffic to be generated by the at least one service associated with the P-CSCF;
generating, by the at least one network node and based at least on the P-CSCF configuration file, a service configuration file that includes the P-CSCF as available for network sessions that utilize at least a service of the at least one service identified as being available;
receiving, by the at least one network node and from a serving network node, a user device request to connect to the network, the user device request requesting access to the network and utilization of the service;
determining, by the at least one network node and based at least on the user device request, a set of active P-CSCFs associated with the service, the set of active P-CSCFs including the P-CSCF; and
providing, by the at least one network node and to the serving network node, the service configuration file and session establishment information associated with the set of active P-CSCFs.