1. (10 p) The system has 4 cells, in each cell there are 182 users. Each...

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1. (10 p) The system has 4 cells, in each cell there are 182 users. Each user generates load of 25 mErlangs What is the blocking probability in one cell when there are 8 channels available in the cell? What is the blocking probability when cells are combined and served by one big cell 4x8 channels? What is the calling rate in one cell? The average call duration is 100s. 2. (40p) Calculate the performance of an OFDM grid in 5G networks. Consider the following configuration of a cell (gNB) in a 5G network: FDD, SCS Sub-carrier Spacing, DL_BW MHz DL and UL_BW MHz UL bandwidth DL_MCS_table in DL and UL_MCS_table in UL Slot-based scheduling is in use DL_overhead_OS OFDM symbols overhead per slot in DL and UL_overhead_OS OFDM symbol overhead per slot in UL Up to DL_max_rank MIMO layers in DL and up to UL_max_rank MIMO layers in UL. Use the following set of parameters parameters 1. SCS = 15 kHz; DL_BW = 10 MHz; UL_BW = 10 MHz; DL_MCS_table = 64 QAM table (table 1); UL_MCS_table = 64 QAM table (table 1); DL_overhead_OS = 2 OFDM-symbol(s); UL_overhead_OS = 1 OFDM-symbol(s); DL_max_rank = 4 layers; UL_max_rank = 2 layers, Task 1. Calculate cell maximum possible throughput in DL and in UL, assuming highest MCS and highest MIMO scheme. Write your answer in Mbps. Task 2. Calculate maximum possible throughput in DL and in UL per user in a cell, assuming 10 users, highest MCS and highest MIMO scheme. Write your answer in Mbps. Task 3. Calculate cell minimum possible throughput in DL and in UL per user, assuming 3 users, lowest MCS and lowest MIMO scheme. Write your answer in Mbps. 1. (10 p) The system has 4 cells, in each cell there are 182 users. Each user generates load of 25 mErlangs What is the blocking probability in one cell when there are 8 channels available in the cell? What is the blocking probability when cells are combined and served by one big cell 4x8 channels? What is the calling rate in one cell? The average call duration is 100s. 2. (40p) Calculate the performance of an OFDM grid in 5G networks. Consider the following configuration of a cell (gNB) in a 5G network: FDD, SCS Sub-carrier Spacing, DL_BW MHz DL and UL_BW MHz UL bandwidth DL_MCS_table in DL and UL_MCS_table in UL Slot-based scheduling is in use DL_overhead_OS OFDM symbols overhead per slot in DL and UL_overhead_OS OFDM symbol overhead per slot in UL Up to DL_max_rank MIMO layers in DL and up to UL_max_rank MIMO layers in UL. Use the following set of parameters parameters 1. SCS = 15 kHz; DL_BW = 10 MHz; UL_BW = 10 MHz; DL_MCS_table = 64 QAM table (table 1); UL_MCS_table = 64 QAM table (table 1); DL_overhead_OS = 2 OFDM-symbol(s); UL_overhead_OS = 1 OFDM-symbol(s); DL_max_rank = 4 layers; UL_max_rank = 2 layers, Task 1. Calculate cell maximum possible throughput in DL and in UL, assuming highest MCS and highest MIMO scheme. Write your answer in Mbps. Task 2. Calculate maximum possible throughput in DL and in UL per user in a cell, assuming 10 users, highest MCS and highest MIMO scheme. Write your answer in Mbps. Task 3. Calculate cell minimum possible throughput in DL and in UL per user, assuming 3 users, lowest MCS and lowest MIMO scheme. Write your answer in Mbps.