Method and apparatus for transmitting and receiving multi-user control channels in a wireless communication system with multiple antennas
First Claim
1. A method for transmitting control information, the method comprising:
- transmitting information on at least one resource block (RB) for a first control channel via higher signaling;
transmitting information on a number of orthogonal frequency division multiplexing (OFDM) symbols for a second control channel in a subframe;
determining a reference signal (RS) associated with the first control channel based on an identifier of a terminal;
mapping control information for the first control channel and the RS to a part of OFDM symbols within the at least one RB; and
transmitting the control information and the RS to the terminal,wherein the OFDM symbols for the second control channel are excluded from the part of the OFDM symbols.
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Accused Products
Abstract
Provided are a method and apparatus for transmitting and receiving multi-user control channels through a data channel region in a wireless communication system using multiple antennas. Further provided is a definition of a new search space for control channel candidates. In the transmitting method, a base station forms control channels for a plurality of user equipment each of which is composed of at least one resource block, performs a mapping for the control channels by dividing a space of the same transmission region in a data channel region of a sub-frame, and then multiplexes the control channels with data channels in the data channel region of the sub-frame and to transmit the multiplexed control channels.
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Citations
16 Claims
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1. A method for transmitting control information, the method comprising:
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transmitting information on at least one resource block (RB) for a first control channel via higher signaling; transmitting information on a number of orthogonal frequency division multiplexing (OFDM) symbols for a second control channel in a subframe; determining a reference signal (RS) associated with the first control channel based on an identifier of a terminal; mapping control information for the first control channel and the RS to a part of OFDM symbols within the at least one RB; and transmitting the control information and the RS to the terminal, wherein the OFDM symbols for the second control channel are excluded from the part of the OFDM symbols. - View Dependent Claims (2, 3, 4)
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5. A method for receiving control information, the method comprising:
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receiving information on at least one resource block (RB) for a first control channel via higher signaling; receiving information on a number of orthogonal frequency division multiplexing (OFDM) symbols for a second control channel in a subframe; and receiving control information for the first control channel and a reference signal (RS) associated with the first control channel, wherein the RS associated with the first control channel is determined based on an identifier of a terminal, wherein the control information and the RS are mapped to a part of OFDM symbols within the at least one RB, and wherein the OFDM symbols for the second control channel are excluded from the part of the OFDM symbols. - View Dependent Claims (6, 7, 8)
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9. A base station for transmitting control information, comprising:
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a transceiver for transmitting signals to and from a terminal, and a controller configured to control the transceiver to transmit information on at least one resource block (RB) for a first control channel via higher signaling, to transmit information on a number of orthogonal frequency division multiplexing (OFDM) symbols for a second control channel in a subframe, to determine a reference signal (RS) associated with the first control channel based on an identifier of a terminal, to map control information for the first control channel and the RS to a part of OFDM symbols within the at least one RB, and to control the transceiver to transmit the control information and the RS to the terminal, wherein the OFDM symbols for the second control channel are excluded from the part of the OFDM symbols. - View Dependent Claims (10, 11, 12)
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13. A terminal for receiving control information, comprising:
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a transceiver for transmitting signals to and from a base station, and a controller configured to control the transceiver to receive information on at least one resource block (RB) information for a first control channel via higher signaling, to receive information on a number of orthogonal frequency division multiplexing (OFDM) symbols for a second control channel in a subframe, and to receive the control information for the first control channel and a reference signal (RS) associated with the first control channel, wherein the RS associated with the first control channel is determined based on an identifier of a terminal, wherein the control information and the RS are mapped to a part of OFDM symbols within the at least one RB, and wherein the OFDM symbols for the second control channel are excluded from the part of the OFDM symbols. - View Dependent Claims (14, 15, 16)
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Specification