Signal analyzer and method for displaying code channel performance in orthogonal transmit diversity

摘要

The invention relates to a signal analyzer and a method for displaying the performance of code channels of a CDMA signal which is transmitted using orthogonal transmit diversity (OTD), the signal being transmitted via at least one of at least two antennas (Ant1, Ant2). After the determination of a code class (CC6, CC7) for the representation of the performance of the individual code channels, the performance of the individual code channels (19, 147, 83, ...) are determined in terms of the determined code class (CC6, CC7) next higher code class (CC7, CC8) determined by an evaluation device (3) and the performance of the individual code channels (19, 147, 83, ...) of the respective antenna (Ant1, Ant2) corresponding to the orthogonal transmit diversity in the specific code class (CC6, CC7) assigned. After performing a code channel swap according to the actual assignment of the antennas (Ant1, Ant2) with respect to the code classes (CC2, CC3, CC4, CC5) of the actually active code channels (2, 3, 15, 20), the services the code channels for at least one antenna (Ant1, Ant2) are displayed on a display device (4) with the correct antenna.