Which of the following method for capacity planning is correct? (Multiple choice)
A . According to the allowed bandwidth and multiplexing mode in the planning area, the maximum carrier frequency that a base station can configure can be obtained;
B . Calculate the total number of channels of the base station or the cell, and subtract the number of control channels, and obtain the maximum number of voice channels configurable by each base station;
C . According to the maximum number of voice channels and the call loss rate indicator (the call loss rate of the cluster communication is 5%), check the Irish B table to obtain the maximum traffic volume (Irish number) that a base station can load;
D . Calculate the number of base stations required for the coverage area according to the cell coverage radius designed by the coverage plan, and whether these base stations can reach the network design capacity.
Answer: A B D