Intersystem relaying method enabling efficient and reliable relaying - involves initiating transmission quality measurement for transmission to base station in second communications system if threshold not reached in first system

摘要

The method involves comparing a transmission quality determined by a first subscriber station (UE) w.r.t. transmission characteristics to a base station (BST) in a first radio communications system (RAT1) with a threshold and, if the threshold is not achieved, initiating determination of transmission quality for transmission characteristics to a base station (NB) in a second communications system (RAT2) until a separate criterion from the threshold is fulfilled.