
Take up the job to bring up one commercial base station and conducting performance testing on it. But first of all, should concentrate on how to do the system commissioning. Spent the whole night to figure out the E1 link. It’s terrible to work on the driver in the operating system that does not allow you to do low level configuration. I just could not find any configuration on the adapter card resided in the WinXP laptop. Anyway, using the trial and error on the other end, still manage to get the correct configuration.
Next, it was to bring up the cell. The signaling messages to setup the cell using customized power level refuse to work. My colleague tuned the maximum transmit power level to 43 dBm according to normal setting for outdoor environment. Then, everything seems alright. Half hour later, I started to feel the headache *~~*. I was not too sure whether I was too tired today or exposed to the RF energy. After an hour later, I decided to leave the room. My colleague left earlier. Anyway, I understand from Kamal that normal mobile phone transmits 1W of energy. 43 dBm is equivalent to 20W of energy. Can you imagine that…..