Comp Inst Error Vector Spec (W-CDMA(3GPP)/HSPA)

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When W-CDMA Code Division Multiple Access: One of several digital wireless transmission methods in which signals are encoded using a specific pseudo-random sequence, or code, to define a communication channel. A receiver, knowing the code, can use it to decode the received signal in the presence of other signals in the channel. This is one of several "spread spectrum" techniques, which allows multiple users to share the same radio frequency spectrum by assigning each active user an unique code. CDMA offers improved spectral efficiency over analog transmission in that it allows for greater frequency reuse. Other characteristics of CDMA systems reduce dropped calls, increase battery life and offer more secure transmission. See also IS-95.(3GPP) Demodulation is enabled, the Inst Error Vector Spec trace shows the instantaneous spectrum of the composite Error Vector Time trace. It is the non-averaged composite Error Vector Spec trace data.

MIMO Multiple Input, Multiple Output: A physical layer (PHY) configuration in which both transmitter and receiver use multiple antennas. Measurements (Downlink only): There is a seperate trace result for each measurement Antenna (x).

See Also

Antenna Composite Trace Data

About Trace Data (W-CDMA(3GPP))