With the rapid growth of 4G traffic and the current situation which TDD band full expansion

FDD 1800 MHz can’t meet users’ good perception after spreading to 20 MHz

this paper studies a new method to solve the problem of regional capacity by FDD 1800 MHz 4T4R sector splitting.The verification result shows that sector splitting technology not only has the advantages of small changes to the existing network

low construction difficulty and fast deployment

but also in the 5G initial deployment phase with limited diversion effect

the scheme can effectively solve the problem of high load in hot spots with a lower cost

so as to achieve the purpose of reducing cost and increasing efficiency.