GSM Base station and handset transmit power
For a GSM abse station the PA transmit power is around 40W, but for the handset it is only about 2 W.
Given the same physicakl distance for uplink and downlink, why base staion power is so much higher than the handset power?
Thanks in advance.
The mobile handsets receiver is less sensitive as well the transmitter operates at very low power so as to keep the size handly and keeping in mind the adverse affects of radiation on human biengs. This feature of the handset is comphensated by the base station whose receiver is comparitively sensitive than the one used in the handset and the transmission power of the base may be varied from 10 watts+ according to the geographical conditions. As the handset is designed to be as compact as possible, one cannot push more power which requires more power too. The handset is targeted to get more standby as well talk time which is essential for every user. On the other hand as the base station is stationary, it may transmit at a high power which may be received by any mobile which is in a fringe area.