The BTS in the suburbs and countrysides are mainly built in the township where the government is located and the population is relatively concentrated. Many villages can not receive mobile signals due to the far distance from the BTS.
In the suburbs and countrysides, the signal coverage is mainly to solve signal blind spots and signal weak zones problem, and the teletraffic is not the main contradiction. At present, the basis of the circuit of the wired network is poor in villages, so it is difficult and costly for the layout and the construction of the cable. Using the wireless network bridging, increasing and extending the coverage range of the base stations has become the ideal rural network access.