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Data superframe generation method of adaptive transmission channel

A technology of adaptive transmission and generation method, applied in transmission path sub-channel allocation, transmission system, digital transmission system and other directions, can solve the problems of data transmission error at the modulation end, invariable frame length, affecting the reception of load information, etc.

Active Publication Date: 2017-05-10
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology

However, the existing data frame structure requires the load to be absolutely consistent in rate, and the frame length is not variable. When the load rate and frame length in the channel change, it will cause serious errors in data transmission at the modulation end, which directly affects the load information. take over

Method used

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  • Data superframe generation method of adaptive transmission channel

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0018] The present invention adopts a brand-new data superframe structure to realize the combination of information frame rate and data stream with frame length constantly changing: firstly, the mode information of each information frame in the data superframe is intelligently stored in the signaling frame, and then Intelligent framing based on frame mode information. If the carrier rate changes, add the corresponding frame header information before the changed frame; if the mode information indicates that only the load rate changes, select the corresponding clock; if only the frame length changes, directly add the variable-length frame to the superframe.

[0019] A method for generating a data superframe of an adaptive transmission channel, comprising the following steps:

[0020] (1) After inserting the start of the current data superframe in the current f...

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Abstract

The invention discloses a data superframe generation method of an adaptive transmission channel, wherein the data superframe generation method is particularly suitable for actual demodulation application of the adaptive transmission channel with variable frame rate. According to the data superframe generation method, through a technical solution of storing mode information of each information frame of a next data superframe and a starting frame number and an ending frame number which correspond with the same mode information frame in the current signaling frame and adding the frame header and the information frame of a next carrier after the information frame which corresponds with the current carrier rate is assembled when the carrier rate changes, real-time and accurate demodulation and decoding of an adaptive transmission channel with variable frame rate can be realized.

Description

technical field [0001] The invention relates to a method for generating a data superframe structure of an adaptive transmission channel, and is particularly suitable for the practical application of a modulation and demodulation system adopting frame-by-frame rate-variable adaptive coding and modulation technology. Background technique [0002] In the link adopting the frame-by-frame rate-variable adaptive coding and modulation technology, the mode information (rate, coding mode and modulation mode) of the payload data to be sent is different according to the link requirements. However, the existing data frame structure requires the load to be absolutely consistent in rate, and the frame length is not variable. When the load rate and frame length in the channel change, it will cause serious errors in data transmission at the modulation end, which directly affects the load information. take over. Therefore, how to correctly combine the data stream with changing information f...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L5/00
CPCH04L1/0083H04L5/0053
Inventor 崔霞霞苟晓刚李新玲乔先科黄先超章伟
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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