Question 3 (20 marks) If CDMA/FDD is required, determine downlink data rate. (Assume QPSK modulation) You may use the guide given below. Determine the number of 3G channels for the system (ignore guard bands) Calculate the number of users per channel Determine Spread Factor Question 4 (20 marks) If 4G/TDD is to be provided, determine downlink data rate. Question 5 (20 marks) Elaborate on the possible short comings and recommendations if there is a plan to roll out 5G services to this town in the future. Item Leased Spectrum TDMA Channel BW GSM Time Slots Average building height Average height of MS Min SIR Path Loss Exponent MS Receiver Min Sensitivity BS Transmit Power 3G Channel Bandwidth 4G Channel Bandwidth Specification 700MHz - 800MHZ (UL), 805MHz - 905MHz (DL) 200kHz 8 40m 2m 1.76dB 2 -101dBm 20W 5MHz (QPSK) 15MHz (16QAM, 2x2 MIMO) Table 1 Question 3 (20 marks) If CDMA/FDD is required, determine downlink data rate. (Assume QPSK modulation) You may use the guide given below. Determine the number of 3G channels for the system (ignore guard bands) Calculate the number of users per channel Determine Spread Factor Question 4 (20 marks) If 4G/TDD is to be provided, determine downlink data rate. Question 5 (20 marks) Elaborate on the possible short comings and recommendations if there is a plan to roll out 5G services to this town in the future. Item Leased Spectrum TDMA Channel BW GSM Time Slots Average building height Average height of MS Min SIR Path Loss Exponent MS Receiver Min Sensitivity BS Transmit Power 3G Channel Bandwidth 4G Channel Bandwidth Specification 700MHz - 800MHZ (UL), 805MHz - 905MHz (DL) 200kHz 8 40m 2m 1.76dB 2 -101dBm 20W 5MHz (QPSK) 15MHz (16QAM, 2x2 MIMO) Table 1