Method for enabling macro base station UE to access home base station and method for controlling interference of home base station

Abstract

The invention discloses a method for enabling a macro base station UE to access a home base station. In the method, all home base stations in the coverage area of a macro base station perform uplink network access to the macro base station, inform of the macro base station that the accessed base stations are home base stations and transmit own identification information to the macro base station;the macro base station estimates the geographic positions of the home base stations in the coverage area and UE in the activated state, determines the home base stations adjacent to the geographic position of the UE based on the estimation and transmits a neighboring area list containing information of the home base stations to the UE. The invention also discloses a method for controlling interference of a home base station. By using the invention, UE can acquire a neighboring area list containing relevant information of home base stations near the UE, so that the UE can be switched to the home base station from the macro base station. Besides, by using the invention, the interference of the home base station on the macro base station can be effectively controlled, thereby balancing the coverage area of the home base station and the interference on the macro base station.

Description

Technical field [0001] The present invention relates to Time Division Synchronous Code Division Multiple Access (TD-SCDMA) technology, in particular to a method for a macro base station UE to switch into a home base station and a method for controlling interference of the home base station. Background technique [0002] With the development of TD-SCDMA in China, users have more and more urgent demands for high-speed data services indoors (home or office). In this case, the development and application of Home NodeB are particularly important. The home base station is mainly aimed at home users and small enterprises. It can effectively solve the indoor coverage problems of 3G system application such as high frequency band and poor penetration ability, and it can fill the coverage blind spots of macro base stations. [0003] For a macro base station, according to network planning, a macro base station can learn about the surrounding macro base stations. Therefore, when a UE (hereinaf...

AI Technical Summary

Problems solved by technology

If the transmission power of the home base station is increased, a hole will be formed around the macro base station, that is, the communication between the macro base station and the UE is strongly interfered by the home base station, so that the normal communication between the macro base station and the UE cannot be

If the transmission power of the home base station is too small, the coverage of the home base station will be reduced, and it will not be able to achieve its proper coverage.

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