7. Consider a cellular phone communication needing at least 100 Kbps data rate between a cell phone terminal and a cellular base station for effective communication. Assume a scenario where a cell phone terminal transmits on uplink with power 60 mW and the intended receiver cellular base station receives the signal with power 20 dbm. The communication is deemed ineffective. Why? Assume that the bandwidth of each cellular channel (uplink/downlink) is 50 kHz. (10 points)