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AWR2243: Antenna layout and data transmission/reception issues

Part Number: AWR2243

Hi team,

Here's an issue from the customer may need your help:

The antenna layout is shown in the figure below, with 4, 1, 3, 2 from left to right chip:

The default configuration when configured using the mmWave studio lua script is shown in the following figure: 

1) As described above, data should be sent from left to right (4-chip transmission skips 1 chip, 1-chip transmission last).

Assuming only 12 chirps are sent, are the first 9 chirps of receive antenna 1-16 the chirp (chips 4-2) sent from the horizontal antenna? The next 10-12 chirps are the chirp data sent by the tilt antenna (chip 1)? 

2) Please see the following figure when receiving data using a routine's function:

Is master the data received on the four receive antennas of chip 1? And is the slave2, 3, 4 corresponding to the data received on chip 2, 3, 4, respectively? 

Should the virtual antenna layout be arranged in the order of slave4, slave3, slave2?

Also the customer sees a virtual receive antenna with the same phase overlap, how to select in this case?

Could you help check this case? Thanks.

Best Regards,

Cherry