METHOD AND SYSTEM FOR ADAPTIVE DOWNLINK SIGNALING DETECTION USING DYNAMIC DOWNLINK SIGNALING POWER DISTRIBUTION PROFILES

摘要

A UE receives a downlink signaling signal in a current TTI over E-AGCH, E-RGCH or E-HICH. A downlink signaling power profile is established for the current TTI utilizing noise variance estimates and downlink signaling power estimates for the current TTI and prior TTIs. Commands such as UP or HOLD in the received downlink signaling signal are determined based on the established downlink signaling power profile. Candidate detection threshold values may be initially selected based on a current noise variance estimate. Distribution statistics, over the selected candidate detection threshold values, of the downlink signaling power estimates in the current TTI and the prior TTIs are determined for establishing the downlink signaling power profile. A detection threshold value is determined based on the current noise variance estimate and a metric derived from the established downlink signaling power profile to determine the commands for managing uplink data transmissions in subsequent TTIs.