Patent ID: 11729849

Abstract:
A solution for handling network congestion includes: attempting, by a user equipment (UE), to initiate a data session (e.g., a voice over WiFi (VoWiFi) call) over a packet data network (PDN); receiving, by the UE, a notification of network congestion; based on at least a fast retry timer and a fast retry counter, attempting, by the UE, fast retries up to a maximum number of fast retries at a fast retry time interval; and based on at least none of the initial attempt and the fast retries initiating the data session, attempting, by the UE, slow retries at a slow retry time interval until the data session is initiated or a trigger condition halts the slow retries. In some examples, the UE receives a retry parameter set from the network including the maximum number of fast retries, the fast retry time interval, and the slow retry time interval.