A load balancing method and base station

Abstract

Embodiments of the present invention provide a load balancing method and a base station, which can realize load balancing of CCs under the same base station, thereby avoiding control resource reconfiguration caused by unbalanced loads of CCs, and ensuring timely scheduling of users or services , to ensure the quality of user communication. The method includes: obtaining the resource occupancy rate of the serving cell of the UE; if it is determined that the resource occupancy rate of the serving cell of the UE exceeds a preset threshold, determining a qualified target base station from base stations to which neighboring cells of the serving cell belong; wherein, the UE The signal quality under the target base station is better than that of the UE under the base station of the serving cell, the number of carriers that the UE can perform carrier aggregation under the target base station is greater than the number of carriers that the UE currently performs carrier aggregation under the base station of the serving cell, and the UE The resource occupancy rates of at least two cells that can perform carrier aggregation under the target base station are both lower than a preset threshold; handover the UE to the target base station. The invention is applicable to the technical field of communication.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a load balancing method and a base station. Background technique [0002] Carrier Aggregation (Carrier Aggregation, CA) is a key technology in the Long Term Evolution-Advanced (LTE-A) system, which simultaneously transmits user data on multiple Component Carriers (CC) , which can increase the user's transmission bandwidth and increase the user's data transmission rate. [0003] In the prior art, in order to facilitate CC management, the CC is divided into a primary component carrier (Primary Component Carrier, PCC) and a secondary component carrier (Secondary Component Carrier, SCC), and it is stipulated that each user equipment (User Equipment, UE) has 1 uplink PCC and 1 downlink PCC and up to 4 uplink SCCs and 4 downlink SCCs. Wherein, the uplink PCC and the downlink PCC are associated together to form a primary cell (Primary Cell, PCell), and the downlink SCC ...

AI Technical Summary

Problems solved by technology

Since each UE within the coverage of the base station usually selects the PCC and SCC according to different policies, there will be load imbalance among CCs under the same base station.

That is to say, the distribution of users on each CC under the same base station may be unbalanced, some CC resources are not fully utilized, while other CCs are in a saturated state, and even exceed the maximum capacity that the CC can carry.

Once the load of the CC exceeds the maximum that it can carry, it will cause the reconfiguration of control resources, resulting in the failure of timely scheduling of users or services, affecting the communication quality of users

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