Patent
MIMO detecting preprocessing device and method
Li Cheng,Ren Yifan,He Guanghui +2 more
- 15 Jan 2014
6
TL;DR: In this paper, an MIMO detecting preprocessing device and method is presented, which consists of a channel transfer matrix input cache module, an MMSE-SQRD preprocessing core module, a sorting information cache module and a unitary matrix Q cache module.
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Abstract: The invention discloses an MIMO detecting preprocessing device and method. The device comprises a channel transfer matrix input cache module, an MMSE-SQRD preprocessing core module, an upper triangular matrix R cache module, a sorting information cache module, a unitary matrix Q cache module, a product computing module and a product computing result cache module. According to the MIMO detecting preprocessing device and method, QR decomposition of an augmented matrix of a channel transfer matrix received by an MIMO receiving end is achieved, sorting operation is added in the matrix QR decomposition process, a unitary matrix and an upper triangular matrix after QR decomposition are obtained, the sorting information vectors of the matrixes are obtained, the device and method are suitable for fields such as MIMO detecting, and the obtained unitary matrix and the obtained upper triangular matrix after QR decomposition can be effectively reused in next-level MMSE and K-Best detecting.
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Citations
Patent
Wireless channel characteristic stepwise quantification method based on unitary transformation preprocessing
Li Guyue,Hu Aiqun,Li Jingqi,Wang Dong,Han Yuanzhi +4 more
- 12 Oct 2016
TL;DR: In this article, a wireless channel characteristic stepwise quantification method based on unitary transformation preprocessing is proposed to improve the consistency of the channel detection results of the parties in wireless communication.
4
Patent
Efficient massive MIMO detection method and system for approximate MMSE performance
Zhang Chuan,Zhizhen Wu,You Xiaohu +2 more
- 29 Sep 2017
TL;DR: In this article, an efficient massive MIMO detection method and system for approximate MMSE performance was proposed, which can still quickly approximate the performance of an accurate MMSE detection algorithm in severe communication environments (such as channels with similar numbers of transmitted/received antennae or larger spatial correlation).
2
Patent
Channel equalization method and system based on QR decomposition
Xiang Li,You Shanhong,Chen Mengchi,Zhen Wang,Ying Wang,Hu Rong,Ying Qiu +6 more
- 17 Aug 2016
TL;DR: In this paper, a channel equalization method and system based on QR decomposition is proposed, in which preprocessing based on discrete Fourier transform (DFT) is carried out on each OFDM signal at the transmitting end in advance; then, the algorithm is adopted at the receiving end, and the preprocessed OFDM signals are restored.
Patent
Method for determining receiver algorithm for large-scale multiple-input multiple-output
Yuan Zhengdao,Xiang Chunzhi,Wang Youshun,Zhu Zhengyu,Gao Tongdi,Ding Dongyan,Cang Tao,Qin Xuezhen,Shi Liang +8 more
- 11 Feb 2020
TL;DR: In this paper, a method for determining a receiver algorithm for large-scale multiple-input-multiple-output (MIMO) systems is proposed, which is shown to be high robustness for typical ill-conditioned channels.
Patent
Control method for MMSE detection circuit based on time hiding
Du Gaoming,Lin Qing,Hu Qiao,Zhang Duoli,Wang Xiaolei,Song Yukun,Yin Yongsheng +6 more
- 21 Aug 2018
TL;DR: In this article, a control method for an MMSE detection circuit based on time hiding is proposed, which is characterized by setting a control module that comprises a counter, n vector pre-treatment units and n-1 register units, wherein the register units are used for storing data, after being processed by the vector pretreatment units, of an output column vector of a complex matrix QR decomposition module.
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Patent
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Patent
MIMO detection pretreatment method with optimal sequencing feature and device
Wenbo Wang,Bin Wu,Hui Zhao,Xiaoping Zhou,Yumei Zhou +4 more
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TL;DR: In this article, an MIMO detection pretreatment method with optimal sequencing feature and a device is presented, and the method comprises the following steps: carrying out first QR decomposition on a channel matrix for obtaining the first QR decomposition result; obtaining optimal sequencing according to the first QR decomposition result and obtaining an intermediate matrix according to optimal sequencing; carrying out the second QR decompposition on the intermediate matrix for getting the second QR decomposing result; and obtaining the pretreatment result of the optimal sequencing, and finally, obtaining the pre-treatment result of
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