DEDICATED REFERENCE SIGNAL
First Claim
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1. A method, comprising:
- identifying a rank of a downlink transmission to a mobile device, wherein the rank indicates utilization of one of two or four antennas;
inserting a set of dedicated reference symbols into a resource block in accordance with a dedicated reference signal structure, wherein the dedicated reference signal structure is associated with the rank; and
employing a beamforming technique to transmit the resource block that includes the set of dedicated reference symbols to the mobile device.
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Abstract
Systems and methodologies are described that facilitate utilizing dedicated reference signal in connection with downlink transmissions. A dedicated reference signal can comprise a set of dedicated reference symbols, which are inserted into a resource block in accordance with a specification provided by a dedicated reference signal structure. The dedicated reference signal structure can vary according to a rank utilized in the downlink transmission.
45 Citations
43 Claims
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1. A method, comprising:
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identifying a rank of a downlink transmission to a mobile device, wherein the rank indicates utilization of one of two or four antennas; inserting a set of dedicated reference symbols into a resource block in accordance with a dedicated reference signal structure, wherein the dedicated reference signal structure is associated with the rank; and employing a beamforming technique to transmit the resource block that includes the set of dedicated reference symbols to the mobile device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A wireless communications apparatus, comprising:
at least one processor configured to; select a dedicated reference signal structure based upon a rank of a transmission, wherein the rank indicates that the transmission utilizes one of two or four antennas; incorporate a dedicated reference signal comprising a set of dedicated reference symbols into a resource block in accordance with the dedicated reference signal structure selected; and utilize a beamforming technique to transmit the resource block with the dedicated reference signal incorporated. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. An apparatus, comprising:
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means for identifying a rank of a downlink transmission to a mobile device, wherein the rank indicates utilization of one of two or four antennas; means for inserting a set of dedicated reference symbols into a resource block in accordance with a dedicated reference signal structure, wherein the dedicated reference signal structure is associated with the rank; and means for employing a beamforming technique to transmit the resource block that includes the set of dedicated reference symbols to the mobile device. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A computer program product, comprising:
a computer-readable medium, comprising; code for causing at least one computer to select a dedicated reference signal structure based upon a rank of a transmission, wherein the rank indicates that the transmission utilizes one of two or four antennas; code for causing the at least one computer to embed a dedicated reference signal comprising a set of dedicated reference symbols into a resource block in accordance with the dedicated reference signal structure selected; and code for causing the at least one computer to utilize a beamforming technique to transmit the resource block with the dedicated reference signal incorporated. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. An apparatus, comprising:
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a rank selection module that determine a rank level associated with a downlink transmission, wherein the rank level can be one of two or four; a dedicated reference signal module that generates a dedicated reference signal comprising a set of dedicated reference symbols, the dedicated reference signal module incorporates the dedicated reference signal into a resource block in accordance with a dedicated reference signal structure selected based upon the rank level; a precoder module that applies a beamforming technique to the resource block with the dedicated reference signal incorporated; and a transmitter that sends the resource block with the dedicated reference signal incorporated on a downlink channel. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43)
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Specification