Invention Grant
- Patent Title: Nested precoding codebook structures for MIMO systems
- Patent Title (中): MIMO系统的嵌套预编码码本结构
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Application No.: US12124529Application Date: 2008-05-21
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Publication No.: US08259824B2Publication Date: 2012-09-04
- Inventor: Badri Varadarajan , Eko N. Onggosanusi , Runhua Chen , Il H. Kim
- Applicant: Badri Varadarajan , Eko N. Onggosanusi , Runhua Chen , Il H. Kim
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Ronald O. Neerings; Wade James Brady, III; Frederick J. Telecky, Jr.
- Main IPC: H04K1/10
- IPC: H04K1/10

Abstract:
Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter is for use with NT transmit antennas and includes a precoder unit configured to precode data for transmission using a preceding matrix selected from a nested codebook, wherein the nested codebook provides codebooks corresponding to different transmission layers that are derived from column subsets of multiple NT×NT preceding matrices. The transmitter also includes a transmit unit configured to transmit the precoded data. In another embodiment, the receiver includes a receive unit configured to receive preceded data. The receiver also includes a precoder selection unit configured to select a preceding matrix from a nested codebook for the preceded data, wherein the nested codebook provides codebooks corresponding to different transmission layers that are derived from column subsets of multiple NT×NT preceding matrices.
Public/Granted literature
- US20080292013A1 NESTED PRECODING CODEBOOK STRUCTURES FOR MIMO SYSTEMS Public/Granted day:2008-11-27
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