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FPGA device for matrix QR decomposition

A QR decomposition and matrix technology, applied in the direction of baseband system components, etc., can solve the problems of increased processing complexity, unfavorable hardware implementation, etc., and achieve the effect of reducing the use of memory resources, good configurability, and deep optimization

Inactive Publication Date: 2011-06-29
NO 50 RES INST OF CHINA ELECTRONICS TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the terminal, as the number of MIMO antennas increases, the processing complexity will increase significantly, which is not conducive to hardware implementation

Method used

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  • FPGA device for matrix QR decomposition
  • FPGA device for matrix QR decomposition
  • FPGA device for matrix QR decomposition

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Embodiment of FPGA device for matrix QR decomposition

[0028] figure 2 The principle of an embodiment of the FPGA device for matrix QR decomposition of the present invention is shown. See figure 2 , the FPGA device of this embodiment includes an input interface 10 , an input storage unit 11 , a scheduler 12 , a processing unit 13 , an internal storage unit 14 and an output interface 15 . The connection relationship between them is: the output of the input interface 10 is connected to the input storage unit 11 , and the input of the scheduler 12 has two paths, namely the output of the input storage unit 11 and the output of the internal storage unit 14 . The processing unit 13 is connected to the output of the scheduler 12 , and the internal storage unit 14 is connected to the output of the processing unit 13 . The output of the internal ...

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Abstract

The invention discloses an FPGA (Field Programmable Gate Array) device for matrix QR decomposition, which greatly speeds up matrix QR decomposition. The technical scheme is that the FPGA device for matrix QR decomposition transmits data and corresponding control information to a processing unit by the aid of a dispatcher, is in charge of the processing sequence of systolic array and adopts the systolic array to achieve Givens rotation through the processing unit, and each element in the systolic array adopts the CORDIC (Coordinated Rotation Digital Computer) technology, so as to achieve coordinated rotation of both real and complex numbers.

Description

technical field [0001] The invention relates to communication and signal processing technology, in particular to a hardware implementation device for performing QR decomposition on a matrix. Background technique [0002] In wireless transmission communication systems, users have higher and higher requirements for data rates. In order to increase the data rate, the new-generation communication systems LTE and WiMAX adopt the MIMO+OFDM architecture, which can efficiently utilize the bandwidth, reduce or even eliminate the interference between symbols, and can greatly increase the data rate and system capacity. [0003] The detection algorithm of the MIMO-OFDM wireless communication system is quite complex in terminal design, and the QR decomposition of the channel estimation matrix can reduce the hardware implementation complexity of the detection algorithm. The so-called matrix QR decomposition is to decompose the matrix into an orthogonal matrix and an upper triangular matr...

Claims

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Application Information

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IPC IPC(8): H04L25/02
Inventor 吴森
Owner NO 50 RES INST OF CHINA ELECTRONICS TECH GRP
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