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Method, communication system and communication device for transmitting and processing data

A communication device and a technology for sending data, which is applied in the field of communication, can solve problems such as large channel interference, difficulty in accurately distinguishing data strings on the receiving side, and reduced transmission reliability, so as to achieve the effect of improving reliability

Active Publication Date: 2009-09-09
CHINA MOBILE COMM GRP CO LTD
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AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a method for sending and processing data, a communication system, and communication equipment to solve the problem in the prior art that there is relatively large interference between channels during the transmission process, and it is difficult for the receiving side to accurately distinguish the data strings sent in parallel. Reduced transmission reliability issues

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  • Method, communication system and communication device for transmitting and processing data
  • Method, communication system and communication device for transmitting and processing data
  • Method, communication system and communication device for transmitting and processing data

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Embodiment Construction

[0036] The solutions of the present invention will be described in detail below in conjunction with specific embodiments.

[0037] In order to achieve the purpose of the present invention, the applicant considers using different encoding and decoding branches of Overlapped Code Division Multiplexing (OVCDM) to distinguish different data strings, so as to improve the reliability of the transmission process. The OVCDM involved in each embodiment of the present invention is a multiplexing technology of high spectral efficiency coding, which uses parallel coding with a code rate higher than 1 to greatly improve the communication system capacity and spectral efficiency, and uses OVCDM technology to encode and decode schemes Subsequent operations will be referred to as OVCDM encoding and decoding of data strings.

[0038] The following describes the process of OVCDM encoding and decoding with a specific example.

[0039] like figure 1 As shown, for the schematic diagram of the OVC...

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Abstract

The invention discloses a communication system, which comprises a transmitting device and a receiving device, wherein the transmitting device is used for performing serial parallel conversion on data strings to be transmitted, respectively using set weighting coefficients to code multi-channel parallel data strings after the serial parallel conversion, utilizing a definite precoding matrix to perform precoding operation on the coded data strings, and transmiting the data strings through antennas, and each antenna transmits each channel of the data strings; and the receiving device is used for receiving the data strings, utilizing a definite detection matrix to perform precoding and channel detection operations on the received data strings, decoding the data strings, determining information of branches where the decoded data strings are positioned, and performing the parallel serial conversion on the data strings according to the branch information. The system can avoid the influence of inter-channel interference on the transmission of the data strings, and improve the reliability of data transmission. The invention discloses a transmission method and a communication device for transmitting and processing data.

Description

technical field [0001] The present invention relates to data transmission technology in the communication field, and in particular to a method for sending and processing data transmission based on precoding technology, a communication system and communication equipment. Background technique [0002] Precoding technology is a technology in which the transmitting side uses a space vector coding scheme to perform linear or non-linear transformation on the data string to be transmitted, so as to construct an optimal space transmission system and improve transmission reliability. [0003] When using precoding technology for data transmission, since the receiving side only uses the spatial channel to distinguish the data sent in parallel, when the receiving signal-to-noise ratio is low, it is difficult for the receiving side to accurately distinguish the data strings sent in parallel, which reduces the transmission reliability . Contents of the invention [0004] Embodiments of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04B7/04H04L1/06
Inventor 刘光毅韩璐王启星黄宇红
Owner CHINA MOBILE COMM GRP CO LTD
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