METHOD AND APPARATUS FOR MEASURING AND FEEDING BACK CHANNEL INFORMATION IN COMMUNICATION SYSTEM USING BEAM FORMING
First Claim
1. A method of transmitting channel information by a receiver in a communication system using beam forming, the method comprising:
- determining an optimum reception beam using intensities of reference signals received through transmission beams of a base station for a first period through a first path for mapping analog beams of an input signal; and
determining an optimum transmission beam among the transmission beams using intensities of reference signals received through the optimum reception beam for a second period through a second path for mapping analog beams of the input signal; and
transmitting channel information measured by using a reference signal received through the optimum transmission beam and the optical reception beam to a transmitter.
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Accused Products
Abstract
A method of feeding back channel information by a receiver in a communication system beam forming is provided. The method includes determining an optimum reception beam using intensities of reference signals received through transmission beams of a base station for a first period through a first path for mapping analog beams of an input signal, and determining an optimum transmission beam of the transmission beams using intensities of reference signals received through the optimum reception beam for a second period through a second path for mapping analog beams of the input signal, and transmitting channel information measured by using a reference signal received through the optimum transmission beam and the optical reception beam to a transmitter.
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Citations
18 Claims
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1. A method of transmitting channel information by a receiver in a communication system using beam forming, the method comprising:
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determining an optimum reception beam using intensities of reference signals received through transmission beams of a base station for a first period through a first path for mapping analog beams of an input signal; and determining an optimum transmission beam among the transmission beams using intensities of reference signals received through the optimum reception beam for a second period through a second path for mapping analog beams of the input signal; and transmitting channel information measured by using a reference signal received through the optimum transmission beam and the optical reception beam to a transmitter. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of receiving channel information by a transmitter in a communication system using beam forming, the method comprising:
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requesting a feedback on channel information of a receiver; and receiving the channel information in a period set based on a number of paths for mapping analog beams of an input signal of the receiver. - View Dependent Claims (8, 9)
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10. A receiver for transmitting channel information in a communication system using beam forming, the receiver comprising:
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a controller that determines an optimum reception beam using intensities of reference signals received through reception beams of a base station for a first period through a first path for mapping analog beams of an input signal, and determines an optimum transmission beam of the transmission beams using the intensities of the reference signals received through the optimum reception beam for a second period through a second path for mapping analog beams; and a transceiver that transmits channel information measured by using a reference signal received through the optimum transmission beam and the optimum reception beam according to an instruction of the controller to the transmitter. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An apparatus of receiving channel information in a communication system using beam forming, the apparatus comprising:
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a controller that controls a transceiver such that a request for a feedback of channel information of a receiver is transmitted; and the transceiver that receives the channel information in a period set based on a number of paths for mapping for analog beams of an input signal of the receiver. - View Dependent Claims (17, 18)
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Specification