With the continuous deepening of 5G network construction

the scope of 5G industry applications continues to expand.Special scenarios such as marine fishery

offshore islands and offshore tourism

maritime border defense

and grassland operations are becoming more and more urgent for 5G network coverage.Among them

scenarios such as near sea and sea surface need to rely on the ultra-long range coverage capability of the communication network to achieve full coverage of the 5G network in the sea.This paper analyzes the influencing factors of the ultra-long range coverage of wireless communication systems

analyzes and elaborates the key technologies of 5G ultra-long range coverage

and builds a model for setting related technical parameters.Finally

based on the live network test

it verifies the ultralong range coverage of the 5G network based on 700 MHz

Which fully proved the application potential of 5G ultra-long range coverage.