Measurement of transmission time

摘要

An apparatus for measuring transmission time comprises means (112) for generating a multicarrier signal, and means (116), such as a GPS receiver, for acquiring time information. Means (111,113,114,115) are also providing for determining the difference in delay times of received multicarrier signal and the output of the multicarrier generator (112). In order to calculate the transmission time, this delay is added to the reference time signal.