Cooperative beamforming apparatus and method in wireless communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsJin Kyu Han, Joon Young Cho, Ju Ho Lee
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Abstract
A cooperative beamforming apparatus and method in a wireless communication system supporting channel sensitive scheduling based on feedback information is provided. A beamforming method in a wireless communication system according to the present invention includes transmitting, at a mobile station, a channel condition information of a channel of a serving base station to the serving base station and a channel condition information of a channel of a neighbor base station; and forming, at the serving base station, a beam based on the channel condition information to transmit a signal and, at neighbor base station, a beam to transmit a signal.
Claims18
A beamforming method in a wireless communication system, comprising:
- transmitting, at a mobile station, a channel condition information of a channel of a serving base station to the serving base station and a channel condition information of a channel of a neighbor base station;
- and forming, at the serving base station, a beam based on the channel condition information to transmit a signal and, at the neighbor base station, a beam based on the channel condition information to transmit a signal.
A beamforming method in a wireless communication system, comprising:
- transmitting, from a mobile station, a channel condition information of a serving base station to the serving base station and a channel condition of a neighbor base station to the neighbor base station;
- forwarding the channel condition informations from the serving and neighbor base stations to a scheduler;
- delivering a beamforming decision made based on the channel condition information from the scheduler to the serving and neighbor base stations;
- and forming, at the serving and neighbor base stations, beams based on the beamforming decision respectively.
A feedback method of a mobile station for beamforming in a wireless communication system, comprising:
- estimating, when a signal is received, channels of a serving base station and a neighbor base station and measuring channel qualities of the serving and neighbor base stations;
- and reporting the channel quality of the serving base station to the serving base station and the channel quality of the neighbor base station to the neighbor base station.
A feedback device of a mobile station for supporting beamforming in a wireless communication system, comprising:
- a received signal processor which processes signals received from a serving base station and a neighbor base station;
- a serving cell condition measurer which measures a channel condition of the serving base station based on the signal received from the serving base station;
- a neighbor cell condition measurer which measures a channel condition of the neighbor base station based on the signal received from the neighbor base station;
- and
- a transmission signal processor which transmits the channel condition of the serving base station to the serving cell and transmits the channel condition of the neighbor base station to the neighbor base station.
Dependencies are inferred from the claim text.