OFDM Sym. Tx. Power (LTE)
is calculated by averaging the powers of all resource elements in the fourth symbol in every subframe. This is done for all subframes in the Measurement Interval and over all antenna ports.
calculates the OFDM Orthogonal Frequency Division Multiplexing: OFDM employs multiple overlapping radio frequency carriers, each operating at a carefully chosen frequency that is Orthogonal to the others, to produce a transmission scheme that supports higher bit rates due to parallel channel operation. OFDM is an alternative tranmission scheme to DSSS and FHSS. Symbol TX Transmit or transmitter power (OSTP) as defined in 3GPP Technical Specification 36.141, Section F.3.3. This data result is only applicable to downlink signals.
The fourth symbol in every subframe contains only PDSCH Physical Downlink Shared Channel, so this data result can be interpreted as the average power of the data subcarriers.
OSTP is calculated and expressed as an absolute power in units of dBm deciBels referenced to a milliWatt: dB relative to 1 milliwatt dissipated in the nominal input impedance of the analyzer.
See Also
