Hi pix. Thank you about your information.
But my senior asks me that question and required me to answer it in boundary condition. That means you must answer why the maximum TX power is 33 dBm, when MS stay near BTS, if you transmit more than 33 dBm, the BTS will receive unrealibility signal. So 33 dBm is a threshold. And you must find out why 33 dBm is a threshold.
In fact, i donnot know how to answer that question but he want me to answer it, i donot know what i should do. Please help me.