US 11,751,023 B2
Charging function fallback
Saad Hamid, Bellevue, WA (US); Kashif Nadeem, Bellevue, WA (US); Nitin Bhakri, Sammamish, WA (US); Omer Ocak, Seattle, WA (US); Nader Nabil Farouk Riad, Bothell, WA (US); Robert L. Engelhart, Bellevue, WA (US); and Muhammad Waqar Afzal, Bellevue, WA (US)
Assigned to T-Mobile USA, Inc., Bellevue, WA (US)
Filed by T-Mobile USA, Inc., Bellevue, WA (US)
Filed on May 21, 2021, as Appl. No. 17/326,816.
Prior Publication US 2022/0377510 A1, Nov. 24, 2022
Int. Cl. H04W 4/24 (2018.01); H04W 8/02 (2009.01); H04W 8/20 (2009.01); H04W 28/04 (2009.01)
CPC H04W 4/24 (2013.01) [H04W 8/02 (2013.01); H04W 8/20 (2013.01); H04W 28/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, from a charging function (CHF), information corresponding to a subscriber of a network, the information including data indicative of use of the network by the subscriber;
storing the information in an offline account database;
receiving, from a connected function, a request corresponding to the subscriber;
determining that the CHF is unreachable;
based on the request and on determining that the CHF is unreachable, performing at least one of accessing or modifying the information stored in the offline account database;
based on performing at least one of accessing or modifying the information stored in the offline account database, generating a response;
transmitting the response to the connected function;
determining that the CHF has become reachable; and
based on determining that the CHF has become reachable, transmitting, to the CHF, an indication of the information that has been at least one of accessed or modified.