Which of the following are methods that can be used to solve a weak coverage problem? (Multiple choice)
A . Adjust the antenna tilt and azimuth of the main coverage area
B . Adjust the weight of the sector beam of the primary coverage cell to make the energy more concentrated
C . Reduce the signal strength of the non-primary coverage cell and improve the SINR of the primary coverage cell signal
D . If the power of the primary coverage cell does not reach the rated maximum, the power of the primary coverage cell is appropriately increased.
Answer: ACD