METHOD AND APPARATUS FOR TRANSMITTING REFERENCE SIGNAL IN MULTI-ANTENNA SYSTEM
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Abstract
A method for transmitting a reference signal in a multi-antenna system is provided. The method includes: selecting at least one orthogonal frequency division multiplexing (OFDM) symbol in a subframe containing a plurality of OFDM symbols; allocating a channel quality indication reference signal (CQI RS) capable of measuring a channel state for each of a plurality of antennas to the selected at least one OFDM symbol; and transmitting the CQI RS, wherein the CQI RS is allocated to an OFDM symbol which does not overlap with an OFDM symbol to which a common reference signal to be transmitted to all user equipments in a cell or a dedicated reference signal to be transmitted to a specific user equipment in the cell is allocated.
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Citations
21 Claims
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1-9. -9. (canceled)
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10. A method for transmitting a reference signal in a multi-antenna system, the method comprising:
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allocating at least one reference signal capable of measuring a channel state for each antenna in a subframe containing a plurality of orthogonal frequency division multiplexing (OFDM) symbols; and transmitting the allocated at least one reference signal, wherein each of the at least one reference signal is allocated to two resource elements in two OFDM symbols of the subframe. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for receiving a reference signal in a multi-antenna system, the method comprising:
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receiving at least one reference signal capable of measuring a channel state for each antenna in a subframe containing a plurality of orthogonal frequency division multiplexing (OFDM) symbols; and measuring a channel state for each antenna, wherein each of the at least one reference signal is allocated to two resource elements in two OFDM symbols of the subframe.
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Specification