OUTER-LOOP POWER CONTROL METHOD AND DEVICE FOR WIRELESS COMMUNICATION SYSTEMS

摘要

The invention relates to an outer-loop power control (OLPC) method and device for mobile communication systems, which enable the rapid adjustment of the desired signal-to-interference target (SIR_target), such as to satisfy a target block error rate (BLER_target). More specifically, the inventive outer-loop power control method, known as "Outage-Based OLPC", establishes that the desired signal-to-interference target (SIR_target) is given as the sum of two components, namely: a first component (SIR_outage-tgt) which is calculated using a dynamic adjustment function, e.g. a neural network, which matches a quality criterion based on cut-off probabilities with a quality criterion based on the target block error rate (BLER_target), taking as input the fading margins associated with the different cut-off probabilities considered; and a second component (SIR_BLER-tgt) which is used to correct possible deviations from the target block error rate (BLER_target) caused by the non-ideal performance of the first component (SIR_outage-tgt).