Mobile load balancing method

Abstract

The invention discloses a mobile load balancing (MLB) method which is applied to a wireless cellular mobile communication system and realizes load balance between adjacent cells in a same cell cluster by taking a cell cluster containing a plurality of cells as a base unit. Concretely, each cell in the cell cluster initiates MLB operation to the adjacent cells according to the load state per se and the load states of the adjacent cells and carries out load transfer with the adjacent cells. The MLB operation initiated by each cell comprises active MLB initiated by a light load cell and passive MLB initiated by a serious overload cell. The cells in the cell cluster can periodically initiate MLB operation for many times, thereby realizing load balance gradually and stably between two adjacent cells, solving the problem of overload of the cell subjected to MLB, avoiding the occurrence of a ping-pong effect, and increasing the convergence rate of load balancing. The adjacent cells exchange load state information, thereby saving the network signaling overhead, lowering the load of network interaction, increasing the utilization ratio of wireless resources, and furthermore ensuring the stability of the network.

Description

A mobile load balancing method Technical field The present invention relates to the field of communication technology, in particular to a mobile load balancing method. Background technique The IMT-Advanced (International Mobile Telecommunications-Advanced) system is a next-generation broadband cellular mobile communication system that exceeds the capabilities of IMT-2000. It can provide mobile services based on packet transmission supported by mobile and fixed networks. No matter in terms of technology, network structure, or business support and service environment, the IMT-Advanced system is very different from traditional cellular networks. The specific manifestations are: IMT-Advanced system uses MIMO (Multiple Input Multiple Output), Advanced technologies such as wireless relay, inter-cell interference coordination, and carrier aggregation; in order to reduce the transmission delay, a flat network structure is adopted, as shown in Figure 1, instead of the traditional centr...

AI Technical Summary

Problems solved by technology

The existing MLB technology usually only considers selecting the cell with the lightest load for load transfer, and does not consider selecting other cells with light load levels or load levels that may become lighter in the future for MLB, which wastes cell resources and aggravates the load. The burden of the loaded cell increases the possibility of it becoming an overloaded cell; while the cell with the lightest load selected for MLB does not consider its own load capacity, "aggressively" accepts the load request of the adjacent cell, which will cause the cell After MLB, there is an overload phenomenon, and the MLB process of this cell needs to happen again, resulting in the ping-pong effect of MLB and wasting system resources.

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