This object defines the rate at which the subscriber is
allowed to consume for the monitoring duration. So, if
this rate is defined to be 2kbits/sec and the monitoring
duration is set to be 120 minutes, then every sample period
the subscribers consumption in the last monitoring duration
would be compared against 1.8Mbytes.
This object can be set only when ccqmCmtsEnfRuleMonType is
set to basic(1) else when polled it will return the
rate valid at that time of the day and 0 if no
monitoring is taking place at that time.