Access Failure Rate and Drop Call Rate

Access Failure Rate

The mobile origination failure rate is defined as the number of origination failures devided by the total number of origination attempts

• mobile originations are mobile to and (MTOL) calls
• a typical performance target of <>
• a rate of <>

the mobile termination failure rate is defined as the number of termination failures divided by total number of valid termination attempts.

• mobile termination are land to mobile (LTOM) calls
• a typical performance target of <>
• a rate of <>

Drop call Rate

A drop call is defined as a traffic channel that is released by either the base station or the mobile without the consent of the mobile.
the dropped call rate is defined as the total number of dropped calls divided by the total number of successful call completions during a spesified period.
a performance target of <2% ( plus a confidence interval ) in deemed accptable.