Method and device for interference coordination and communication system, mobile station and base station

A method for coordinating interference in a communication system, comprising:

• receiving, by a user equipment in the communication system, interference coordination information in connection with Channel State Information-Reference Signal of a macro cell base station from a pico cell base station serving the user equipment;
• removing, by the user equipment, interference information from the received information according to the interference coordination information so as to eliminate the interference on the pico cell caused by the macro cell.

A device for coordinating interference in a communication system, comprising:

• an interference coordination information generating section configured to generate interference coordination information in connection with Channel State Information-Reference Signal of the device in the communication system and send the interference coordination information to a pico cell base station in the communication system;
• wherein, the interference coordination information is sent to a user equipment serviced by a pico cell base station, so as to coordinate interference on the pico cell caused by the macro cell according to the interference coordination information.

A device for coordinating interference in a communication system, comprising:

• an interference coordination information receiving section configured to receive interference coordination information in connection with Channel State Information-Reference Signal of a macro cell base station in the communication system from the macro cell base station;
• and
• an interference coordination information sending section configured to send the interference coordination information to a user equipment serviced by the device, so as to coordinate interference on the pico cell corresponding to the device caused by the macro cell according to the interference coordination information.

A device for coordinating interference in a communication system, comprising:

• a receiving section configured to receive interference coordination information in connection with Channel State Information-Reference Signal of a macro cell base station in the communication system from a pico cell base station in the communication system;
• an eliminating section configured to eliminate interference information from the received information according to the interference coordination information so as to eliminate the interference on the pico cell caused by the macro cell.

A device for coordinating interference in a communication system, comprising:

• a postponing section configured to postpone a transmission frame of a pico cell base station in the communication system according to a frame structure of a macro cell base station in the communication system;
• a selecting section configured to select a sub-frame for carrying the Channel State Information-Reference Signal from the transmission frame of the macro cell base station according to a postponing length of the transmission frame of the pico cell base station;
• wherein, the sub-frame for carrying the Channel State Information-Reference Signal selected by the selecting section is at least partly not overlapped with sub-frames for carrying common channels of the macro cell base station and sub-frames for carrying common channels of the pico cell base station, and the sub-frames for carrying common channels of the macro cell base station is at least partly not overlapped with the sub-frames for carrying common channels of the pico cell base station.

A user equipment, comprising a device for coordinating interference in a communication system, the device for coordinating interference in a communication system comprising:

• a receiving section configured to receive interference coordination information in connection with Channel State Information-Reference Signal of a macro cell base station in the communication system from a pico cell base station in the communication system;
• an eliminating section configured to eliminate interference information from the received information according to the interference coordination information so as to eliminate the interference on the pico cell caused by the macro cell.