Call set up failure rate metric and communication network optimization based thereon

A system, comprising:

• a communication network configured to enable calls on user devices subscribed with the communication network, the communication network at least including a server having a processor, a memory, and a communication circuit, wherein the communication network comprises a long-term evolution (LTE) communication network, the processor being physically configured according to computer-executable instructions for:
• generating a call detail record for a call set up process for each of the calls initiated by the user devices;
• aggregating the call detail records generated over a predetermined time period to provide an aggregated call detail record;
• calculating from the aggregated call detail record a call set up failure rate for the initiated calls that failed during the call set up process;
• and
• communicating an alert to a network computer when the call set up failure rate is above a threshold;
• wherein the call set up process includes an attempt stage, a pre-alerting stage, an alerting/ringing stage, and an answering stage, and wherein the call set up failure rate excludes the calls that failed during the alerting/ringing and answering stages of the call set up process;
• wherein:
• the call set up failure rate is calculated according to:
• call set up failure rate=total number of call failures/total number of calls initiated on the communication network, and
• the total number of call failures is calculated according to:
• total number of call failures=total number of calls initiated on the communication network−(total number of calls answered+total number of calls that reached the alerting/ringing stage+total number of calls aborted by a calling party prior to the alerting/ringing stage).

A computer-implemented method for adjusting network call parameters based on determining a call set up failure rate for calls initiated on a long-term evolution (LTE) network, comprising:

• generating, at a server of the LTE communication network, at least one call detail record for a call set up process for each of the calls initiated on the LTE communication network;
• aggregating, at the server, all of the call detail records generated over a predetermined time period to provide an aggregated call detail record;
• extracting, at the server, a total number of the initiated calls that failed prior to a ringing stage of the call set up process from the aggregated call detail record;
• calculating, at the server, the call set up failure rate based on the total number of initiated calls that failed prior to the ringing stage;
• and
• adjusting, at the server, one or more parameters of the LTE network when the call set up failure rate is above a threshold, wherein:
• the call set up failure rate is calculated according to:
• call set up failure rate=total number of call failures/total number of calls initiated on the LTE communication network, and
• the total number of call failures is calculated according to:
• total number of call failures=total number of calls initiated on the LTE communication network−(total number of calls answered+total number of calls that reached the ringing stage+total number of calls aborted by a calling party prior to the ringing stage).