Apparatus and method for cooperative relaying based on beamforming in a mobile communication system
AssigneeSamsung Electronics Co., Ltd.
InventorKyung-Chun Lee
Life of this patent
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Abstract
A method and apparatus for cooperative relaying based on beamforming in a mobile communication system. In a method of cooperative relaying based on beamforming in a mobile communication system, a signal received from a transmitting terminal is decoded by a relay station to determine whether a decoding error occurs. The relay station then acquires a beamforming weight corresponding to decoding error information, if the decoding error occurs. The relay station then applies the beamforming weight to the signal received from the transmitting terminal, and transmits the signal.
Claims18
A method of a relaying a signal based on beamforming by a relay station in a mobile communication system, the method comprising:
- decoding a signal received from a transmitting terminal;
- determining whether there is an error in the decoded signal;
- acquiring a beamforming weight corresponding to decoding error information, if the there is an error in the decoded signal;
- applying the beamforming weight to the signal received from the transmitting terminal;
- and
- transmitting, to a receiving terminal, the signal to which the beamforming weight is applied.
A method of determining beamforming weights by a receiving terminal in a mobile communication system, the method comprising:
- receiving decoding error information from a plurality of relay stations;
- determining beamforming weights for each of the plurality of relay stations by using the decoding error information;
- and
- transmitting the determined beamforming weights to each of the plurality of relay stations.
A relay station for relaying a signal based on beamforming in a mobile communication system, the apparatus comprising:
- a receiving unit for receiving signal from a transmitting terminal;
- a decoding error checking unit for checking whether a decoding error occurs in a signal received from a transmitting terminal;
- a decoding error estimating unit for estimating decoding error information, if the decoding error occurs;
- a weight applying unit for acquiring a beamforming weight corresponding to the estimated decoding error and applying the beamforming weight to the signal received from the transmitting terminal;
- and
- a transmitting unit for transmitting, to a receiving terminal, the signal to which the beamforming weight is applied.
A receiving terminal apparatus determining beamforming weights for relay stations in a mobile communication system, the apparatus comprising:
- a receiving unit for receiving decoding error information from a plurality of relay stations;
- a weight determining unit for determining beamforming weights for each of the plurality of relay stations by using the received decoding error information;
- and
- a transmitting unit for transmitting the determined beamforming weights to each of the plurality of relay stations.
Dependencies are inferred from the claim text.