Method for acquiring information of home node B, method for balancing load, and apparatuses therefor

摘要

The present invention discloses a method for acquiring information of a home NodeB, a method for balancing load, and implementation apparatuses thereof, which are used to solve the problem how to guide a UE to move to an appropriate home NodeB when a macro cell performs load balancing. In the present invention, information of a target NodeB is acquired actively through a macro NodeB, and according to an access type of the target NodeB, subscribers of the macro NodeB are timely balanced to the home NodeB which can provide services, thereby reducing a call drop rate resulted from blind handover. Since measurement information of the UE is fully considered, success rate of balancing handover is enhanced, and the object of performing effective load balancing in a home NodeB environment is achieved.

主权项

1. A method for implementing load balancing in a home NodeB environment, comprising:
a macro NodeB actively sending a home NodeB information request message to target home NodeBs so as to acquire information of the target home NodeBs in following way: the macro NodeB sending the home NodeB information request message to the target home NodeBs; the target home NodeBs feeding back a home NodeB information request response message to the macro NodeB after receiving the home NodeB information request message; wherein, the home NodeB information request message and home NodeB information request response message are implemented through a newly added X2 interface message or a newly added S1 interface message; if the home NodeB information request message and home NodeB information request response message are implemented through a S1 interface, the home NodeB information request message and home NodeB information request response message performs passthrough through a Mobility Management Entity (MME) and a home NodeB gateway; when the load of a macro cell exceeds a preset threshold, according to the obtained information of the target home NodeBs and a measurement report reported by a User Equipment (UE), the macro NodeB selecting the target home NodeB with better signal quality for the UE to perform handover.