Dense network capacity increasing method based on frequency division multiplexing and uplink/downlink decoupling

Abstract

The invention discloses a dense network capacity increasing method based on frequency division multiplexing and uplink / downlink decoupling. Interference among base stations in a dense network is relatively severe, and a user accesses different base stations while uploading and downloading data at a place with a relatively high requirement on uplink / downlink flow density. Since inter-cell interference exists for a cell edge user, reasonable user performance cannot be ensured in a heavy load scene, and the edge user throughput decreases severely. The inter-cell interference is suppressed through fractional frequency reuse methods. A fractional frequency reuse method in which a frequency reuse factor is 3 and a fractional frequency reuse method in which a frequency reuse factor is 1 are adopted respectively for the base stations, and meanwhile data transmission uplink / downlink decoupling is realized between the user and the base stations. Through skillful combination of a frequency division multiplexing method and an uplink / downlink decoupling method, the inter-cell interference is suppressed effectively, and the overall network throughput is optimized, so that the system capacity in the dense network is increased. The dense network capacity increasing method has important practical significance and a very good application prospect.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular, to a dense network capacity improvement method based on frequency division multiplexing and uplink and downlink decoupling in a 5G system. Background technique [0002] In the future 5G communication system, the wireless communication network is evolving in the direction of network diversification, broadband, integration and intelligence. With the popularization of various smart terminals, data traffic will experience a blowout growth. In the future, data services will be mainly distributed indoors and in hotspot areas, which makes the ultra-dense network one of the main means to realize the 1000 times traffic demand of future 5G. Ultra-dense network UDN is one of the core technologies of 5G. Through the large-scale deployment of wireless access points, the distance of user access can be greatly reduced, thereby improving user throughput and regional throughpu...

AI Technical Summary

Problems solved by technology

[0006] Technical problem: The problem of the present invention is to provide a dense network capacity improvement method based on frequency division multiplexing and uplink and downlink decoupling, which effectively solves the inter-cell interference caused by the complex network topology in ultra-dense networks that restricts system capacity growth question

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