Load balancing method among nonadjacent heterogeneous cells in ubiquitous network

Abstract

The invention discloses a load balancing method among nonadjacent heterogeneous cells in a ubiquitous network, and mainly resolves the problem that in the prior art, when load of an adjacent cell is too heavy and load to be transferred of a current cell cannot be received, load balancing cannot be achieved. The load balancing method includes that load information of the current cell, the adjacent cell and a double bounce cell is collected periodically through wireless access points (AP), and whether load balancing is to be achieved or not is judged according to whether uniformization load of the current cell exceeds a load balancing starting threshold or not; according to the load information of the adjacent cell and the double bounce cell, whether load is transferred to the adjacent cell or to the double bounce cell is judged; a switching target is chosen, and according to switching cost of the switching target, the optimum load transferring cell with the minimum switching cost is chosen; and the switching target is indicated to be switched into a corresponding cell to complete the load balancing. According to the load balancing method, the load balancing among nonadjacent heterogeneous cells is achieved, the range of the load balancing is enlarged, network performance and the resource utilization rate are improved, and the load balancing method can be used for resource optimization in a heterogeneous communication environment.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a load balancing method among non-adjacent heterogeneous cells in a ubiquitous network. The present invention can realize load transfer between heterogeneous cells, especially when adjacent cells are too heavily loaded to receive the load to be transferred, and realize load transfer between non-adjacent heterogeneous cells, avoiding problems caused by unbalanced loads among cells Phenomena such as poor communication quality and waste of resources. Background technique [0002] With the rapid development of microelectronics and wireless communication technology, the ubiquitous network era in which anyone can communicate at any time and any place has gradually become a possibility. The ubiquitous network involves a network architecture in which multiple heterogeneous networks coexist and overlap and complement each other. Under this network architecture, users can use ...

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Problems solved by technology

[0006] After analysis, it can be found that the above scheme has the following deficiencies: First, when selecting the serving network node for the UE, the signal-to-interference-noise ratio (SINR) is simply used as the standard, and the differences between different networks in the heterogeneous network are not considered, nor are other factors considered. Second, load balancing is achieved by switching users between different networks, but when all the networks that a certain user can access are overloaded, it will not be possible to transfer the load by switching users

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