Load balancing method and device based on multi-carrier aggregation

Abstract

The invention relates to the field of communications, the invention relates to a load balancing method and device based on multi-carrier aggregation which can reduce a system load for realizing load balancing based on carrier aggregation under C-RAN. The method comprises the following steps of: in a C-RAN architecture, collecting the equivalent PRB utilization rate of each cell in a system in a signaling layer by taking BBU as a unit; wherein theBBU can use PRB according to the collected equivalent PRB utilization rate; screening out to-be-equalized cells are locally; performing load balancingbetween the to-be-balanced cell and the corresponding target cell with a CA relationship. Thus, the message amount of equivalent PRB utilization rate interaction of the BBU on the service layer according to the CA relationship can be effectively reduced, so that the performance of the network load balancing algorithm is effectively improved. The system load is reduced, the network quality is alsoimproved, and the user experience is effectively improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a load balancing method and device based on multi-carrier aggregation. Background technique [0002] Currently, a new type of access network radio framework (C-RAN) is widely used. Under the C-RAN architecture, by reducing the number of base station equipment rooms, reducing energy consumption, and adopting collaboration and virtualization technologies, resource collaboration is realized and spectrum efficiency is improved to achieve low-cost, high-bandwidth, and flexible operation. [0003] Compared with traditional wireless network networking methods, the C-RAN network architecture has the following characteristics: [0004] 1. Indoor baseband processing unit (Building Base band Unit, BBU) centralized. [0005] In a traditional wireless network, each base station (ie, BBU) requires an independent computer room. In C-RAN, a certain number (a dozen, dozens) of BBUs are placed...

AI Technical Summary

Problems solved by technology

[0017] Assuming that a cell can establish a CA relationship with up to 12 other cells, in order to achieve CA-based load balancing, in the worst case, L2 under the C-RAN architecture needs to periodically (eg, 100ms) interact with 12 cells at the same time *The equivalent PRB utilization rate of 144 cells, this amount of interaction increases with the increase of the number of BBUs configured under C-RAN, which makes the overall situation worse

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