Subband SNR correction in a frequency selective scheduler

A base station comprising:

• a processor;
• a memory having stored therein a scheduler;
• a utility which when executed by the processor performs the functions of:
• periodically receiving a subband channel quality indicator (CQI) report and a wideband CQI report from one or more wireless devices;
• recording a subframe report period for the subband CQI report received;
• dynamically determining which one of the subband CQI report and the wideband CQI report provides a best performance for scheduling a current downlink transmission;
• wherein the functions for dynamically determining further comprises:
• determining a current age of the subband report based on an elapsed time between the subframe report period recorded and a most current subframe reporting period;
• comparing the current age with a threshold age to determine whether a corresponding report is valid;
• in response to a determination that the current age does not exceed the threshold age, scheduling the current downlink transmission by using one of:
• (a) a subband CQI value from the most current reporting subframe;
• and (b) a computed subband CQI value which is based on a previous CQI value and a wideband CQI value;
• and
• in response to a determination that the current age exceeds the threshold age, scheduling the current downlink transmission utilizing the wideband CQI report.