The signal leakage mentioned here refers to the phenomenon that occurs in the indoor distribution system
Leakage solution one: reduce power.
Specific measures: BTS or active devices have low power; use large couplers; add attenuators: the overall power is reduced, which may cause insufficient coverage; the reduction of C/I makes it difficult to select cells by the window. Cell selection is slow; when idle, the window occupies the outdoor signal; the window occupies the outdoor signal during a call; frequent reselection or handover will cause excessive signaling and even call drop.
Leakage solution two: adjust the antenna position.
Specific measures: Move the antenna indoors. The problems caused: difficult work; poor coverage by the window, difficulty in cell selection, and reduced C/I.
Leakage solution three: directional plate antenna instead of omnidirectional antenna.
Specific measures: directional plate antennas cover indoors. The problems caused: difficult work; restricted antenna installation location; directional antennas instead of omnidirectional antennas increase investment.
Leakage solution four: Multi-antenna low-power coverage method, which ensures coverage while controlling signal leakage.
Problems caused: The project is complicated and the investment increases.