A method of setting up and handing off calls in a mobile cellular radio system in which consideration is given to the load capacity of several types of channels. The communication system determines the available capacity of the different groups of channels in the communication system whenever a new call...http://www.google.de/patents/US5542093?utm_source=gb-gplus-sharePatent US5542093 - Method for redistributing dual mode mobile units to extended channel groups to reduce congestion in primary channel groups
