Auto-control of radiation power in a portable telecommunication system

A portable telecommunications system, comprising:

• a radio base station (RBS) for radiating an information signal;
• a location determining device for providing location information about the portable telecommunications system, wherein said portable telecommunications system is capable of physical motion during operation;
• memory for storing a plurality of data groups, wherein each said data group comprises node identifying data associated with a telecommunications system node among a network of telecommunications nodes including the portable telecommunications system and a remote telecommunications system, and configuration data comprising a predetermined threshold value;
• a program management module for periodically sending, from the portable telecommunications system to each remote telecommunications system identified in the memory, a presence message comprising data identifying the portable telecommunications system and the location information about the portable telecommunications system, and for receiving a presence message sent from the remote telecommunication system comprising information identifying the remote communications system and location information about the remote telecommunications system;
• and
• a proximity handing module for determining a distance between the portable telecommunications system and the remote telecommunications system from the location information and adjusting the power of the RBS based on the distance and the predetermined threshold value.