In a base station of a mobile cellular telephone system of the type having time division multiple access (TDMA) channels, a radio frequency test loop is established between a predetermined downlink channel of a base station transmitter and a predetermined uplink channel of a base station receiver. The...http://www.google.fr/patents/US5521904?utm_source=gb-gplus-shareBrevet US5521904 - Method and apparatus for testing a base station in a time division multiple access radio communications system
Method and apparatus for testing a base station in a time division multiple ...
