Wireless networks involve radio and wireline links as well as switching hardware and software and database operations. For the most part, however, service quality will be determined by the performance of the radio network. Putting aside the issue of regional coverage, there are three critical factors that impact the performance of both voice and data radio networks: RF signal level (in both uplink and downlink); level of radio interference (also in both uplink and downlink); and available radio channel capacity. For each of these factors, the effects are somewhat different for voice and data networks.

We use different metrics that collectively provide a measurement of network service quality from user’s perspective. These are four key performance indicators, which we use to optimize the network performance.