QC-MSM: Calibration and Testing of RF/Audio On Lab and PL (to be updated)

Here's a place that is mainly focused on discussing principles, procedures, and troubles of RF/Audio Calibration and Testing for chipsets of MSM series produced by Qualcomm, when used on Lab and PL.
For the convenience of discussion, the problems above are divided into two parts, as shown below.
a. SW
How to design, develop, and maintain a tool to calibrate and test RF/Audio
for Lab as well as PL
b. Engineering/HW
How to build up an environment of calibration and testing of RF/Audio,
respectively for PL and Lab.
How to resolve troubles that take place on PL during calibration and testing

So, welcome to make a brainstorm£¡

translante for it or others ?