A retry profile specifies the circumstances under which installation of a Policy and Charging Control (PCC) or an application detection control (ADC) rule is retried if the rule is reported to have failed (for example, because the establishment of a network-initiated bearer failed), as indicated by a Charging-Rule-Report or an ADC-Rule-Report. The retry action consists of repeatedly trying up to a maximum number of retry cycles consisting of several configurable parameters and an exponential back off algorithm to calculate the wait time between successive retry attempts. Generally, each retry cycle would consist of a small number of retry attempts and a relatively large Back Off Interval between each retry cycle.
For example, a Charging-Rule-Report reports a failure to establish a dedicated bearer. Using the configured Retry Profile, an attempt is made to establish a dedicated bearer after the Initial Retry Interval. Should the attempt fail, another retry attempt is made within the Maximum Retry Interval period. Attempts are repeated until the number of attempts reaches the Maximum Retry Attempts. This concludes a retry cycle. The next retry cycle begins after the configured time-period Back Off Interval.