Load capacity-based dynamic disturbance coordination algorithm in LTE (long term evolution) system

Abstract

The invention discloses a load capacity-based dynamic disturbance coordination algorithm in an LTE (long term evolution) system. According to the method, not only is the load capacity in a cell considered, but also the ratio of a central user and an edge user in the cell, and the power ratio of the central user and the edge user in the cell are considered, and a disturbance coordination technology adopted in the cell is dynamically selected according to change conditions of the load capacity in the cell. The algorithm has the beneficial effects of capacities of effectively relieving the inter-cell disturbance problem, changing the disturbance coordination technology adopted in the cell according to the change conditions of the real-time load capacity in the cell, fully utilizing a spectrum resource and rescuing the waste of resources.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a load-based dynamic interference coordination algorithm in an LTE system. Background technique [0002] In a cellular system, a major problem is inter-cell interference caused by adjacent cells using the same frequency band, especially for cell edge users, which may even lead to a sharp deterioration in performance. The problem of inter-cell interference has already attracted the attention of people in this field in traditional cellular systems, and people in the technical field have proposed some solutions to solve this problem. For example, in classical Frequency / Time Division Multiplexing (FDM / TDM) systems like Global System for Mobile Communications (GSM), partial frequency reuse is used to prevent adjacent cells from using the same set of frequencies [M. Necker, " Interference coordination in cellular OFDMA networks,” IEEE Network, vol.22, pp.12-19, 2008....

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Problems solved by technology

[0011] The purpose of the present invention is to solve the above problems and provide a load-based dynamic interference coordination algorithm in the LTE system, mainly for the lack of effective control of spectrum resources in the static resource allocation mode, and the inability to solve network congestion when the load is severe Its advantage is that it can meet the needs of users who have higher requirements on the throughput performance of the system, especially the throughput of edge users, better serve users, especially edge users, and improve the overall performance of the system

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