Измерение ошибки временного выравнивания (TAE)
A special task for network optimization purposes is to measure the time alignment error (TAE) of the network components. Filters, cables, antenna arrays and signal processing modules are potential sources for adding time delays, while the signal travels all its way from the baseband to the receiving antenna. In that case, an absolute and extremely precise signal arrival time stamp (UTC time with an accuracy of a few ns) is required, which is provided by R&S®TSMx6 scanners.
A deviation of the networks’ time base necessarily leads to a frequency drift. To measure the frequency accuracy of a 5G NR cell, the R&S®TSMx6 scanners provide the exact SSB center frequency (accuracy: a few Hz).