Load balance method and base station

Abstract

The embodiment of the invention provides a load balance method and a base station, and aims to realize load balance of CCs (Component Carriers) under the same base station in order to avoid control resource reallocation due to load imbalance of the CCs, ensure that users or services can be scheduled in time, and ensure the user communication quality. The method comprises the following steps: acquiring a resource occupation rate of a serving cell of UE (User Equipment); if the resource occupation rate of the serving cell of the UE is determined to surpass a preset threshold, determining a target base station which conforms to a condition from base stations to which neighbor cells of the serving cell belong, wherein the signal quality of the UE under the target base station is superior to the signal quality of the UE under the base station to which the serving cell belongs, a quantity of carriers for the UE to perform carrier aggregation under the target base station is greater than a quantity of carriers for the UE to perform carrier aggregation under the base station to which the serving cell belongs at present, and the resource occupation rates of at least two cells in which the UE can perform carrier aggregation under the target base station are smaller than the preset threshold; and switching the UE under the target base station. The load balance method and the base station are suitable for the technical field of communications.

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 transmits user data simultaneously on multiple component carriers (Component Carrier, 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 the management of the CC, 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,...

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

Images