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Asymmetric communication method and device

An asymmetric and transmitting device technology, applied in the field of asymmetric communication methods and devices, can solve problems affecting communication system design, limiting information data types, bandwidth configuration, etc., to meet transmission performance requirements, maximize bandwidth utilization, The effect of improving safety

Active Publication Date: 2014-05-14
TIANJIN AEROSPACE ZHONGWEI DATA SYST TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, since UQPSK only has two independent channels, it limits the type of information data that can be carried simultaneously in asymmetric transmission and the configuration of bandwidth, which affects the design of the communication system and cannot satisfy the design of the communication system to the greatest extent. Target

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Embodiment Construction

[0016] Embodiments of the invention are described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. Embodiments of the invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure is thorough and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Detailed descriptions of known functions and structures will be omitted to avoid obscuring the subject matter of the embodiments. The same reference numerals are used to designate the same elements in the drawings.

[0017] It should be understood that although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and / or sections, these element...

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Abstract

The invention discloses an asymmetric communication method and device. The asymmetric communication sending method comprises the steps that multi-channel information data are subjected to channel coding; and the information data after multi-channel coding are subjected to framing and spectrum spreading operation. The asymmetric communication sending device comprises a channel coding module and a multiple connection module. The channel coding module carries out channel coding on the multi-channel information data flow to be transmitted. The multiple connection module carries out framing on the multi-channel information data flow after channel coding to form one channel of frame data flow with fixed frame length and format, and the data flow is sent after subsection spectrum spreading and band-pass modulation. Asymmetric transmission of more than two channels of information data is achieved, and the transmission requirements of communication symbols which have high safety requirements can be met.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to an asymmetric communication method and device, in particular to an asymmetric communication method and device for transmitting information with high security requirements. Background technique [0002] In asymmetric communication, UQPSK technology is usually used. Such as figure 1 As shown, UQPSK technology adopts PSK modulation, and the signal space of PSK modulation is a two-dimensional orthogonal space, which contains two mutually orthogonal components, where ψ 1 (t) = cosω 0 t is the in-phase component, ψ 2 (t)=sinω 0 t, is the orthogonal component. Therefore, the current UQPSK technology can transmit two different channels of information at the same time. The data streams of the two channels of information can have different code rates, and are transmitted in two irrelevant independent information data streams, and the power ratio ρ of the data of the two channels ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04B1/707
Inventor 许利朱铁林王平曹旸
Owner TIANJIN AEROSPACE ZHONGWEI DATA SYST TECH CO LTD
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