公开(公告)号：US20190229842A1

公开(公告)日：2019-07-25

申请号：US16374549

申请日：2019-04-03

Applicant: Shenzhen Super Data Link Technology Ltd.

Inventor： Ruopeng LIU ,  Chunlin JI ,  Xingan XU ,  Shasha ZHANG

IPC: H04L1/00 ,  H04J99/00

Abstract: The present application discloses a signal sampling and recovery method and apparatus applicable to an OvXDM system, and the OvXDM system. The method includes: constructing, based on design parameters, an observation matrix Φ that is irrelevant to an original signal y, wherein the observation matrix Φ is a two-dimensional M*S matrix, S is a length of the original signal y, and M is smaller than S; compressing the original signal y based on a formula Ycs=ΦY, to obtain a M*1 compressed signal Ycs, wherein Y is a S*1 column vector that is obtained according to the original signal y; and reconstructing the compressed signal Ycs based on a predetermined algorithm, so as to recover the original signal y. The present application implements accurate recovery of the original signal at a reduced sampling rate, thereby reducing hardware requirements of the system and improving feasibility of the technical solution.

公开(公告)号：US20190238384A1

公开(公告)日：2019-08-01

申请号：US16377149

申请日：2019-04-05

Applicant: Shenzhen Super Data Link Technology Ltd.

Inventor： Ruopeng LIU ,  Chunlin JI ,  Xingan XU ,  Shasha ZHANG

IPC: H04L27/26 ,  H04J4/00

Abstract: In an overlapped multiplexing-based decoding method and device, and modulation and demodulation method and system provided in this application, a convolution operation with a header and without a tail is split into group operations with both a header and a tail by using a slide group decoding scheme and based on association between adjacent symbols in an OvXDM system, and then each group of sequences is decoded by using a corresponding decoding algorithm.

公开(公告)号：US20190238155A1

公开(公告)日：2019-08-01

申请号：US16379622

申请日：2019-04-09

Applicant: Shenzhen Super Data Link Technology Ltd.

Inventor： Ruopeng LIU ,  Chunlin JI ,  Xingan XU ,  Shasha ZHANG

IPC: H03M7/32 ,  H03M7/30 ,  G06F17/18

Abstract: The present application discloses a forward and backward smooth decoding method and device suitable for an OvXDM system, and a system. Importance weights of particles in a particle set corresponding to a symbol are calculated by using a forward process and a backward process, and screening is performed with reference to forward importance weights of particles and backward importance weights of particles, to output a final decoding sequence.

公开(公告)号：US20190222347A1

公开(公告)日：2019-07-18

申请号：US16362485

申请日：2019-03-22

Applicant: Shenzhen Super Data Link Technology Ltd.

Inventor： Ruopeng LIU ,  Chunlin JI ,  Xingan XU ,  Shasha ZHANG

IPC: H04J99/00 ,  H04L7/00

CPC classification number: H04J15/00 ,  H04L1/00 ,  H04L7/0079

Abstract: This application discloses a decoding method for an OvXDM system, including: generating an augmented matrix B related to a received symbol information sequence; performing singular decomposition on the augmented matrix B; and performing decoding by using a total least square method, to obtain a decoded output information sequence. This application further discloses an OvXDM system. In a specific implementation of this application, decoding is performed by using the total least square method.