Data transmission method and system based on OFDMA mode

A data transmission method and data transmission technology, applied in digital transmission systems, transmission systems, data exchange networks, etc., can solve problems such as delay, speed, and stability, and reduce network system transmission efficiency and transmission quality.

Inactive Publication Date: 2020-11-13
浙江云朵网科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, at present, for the transmission of data packets, it adopts the method of directly transmitting data packets, but the types of data packets are different, and the delay, speed, and stability of transmission are different. Transmission arrangements will reduce the transmission efficiency and transmission quality of the entire network system

Method used

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  • Data transmission method and system based on OFDMA mode
  • Data transmission method and system based on OFDMA mode
  • Data transmission method and system based on OFDMA mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0096] The embodiment of the present invention provides a data transmission method based on OFDMA mode, such as figure 1 As shown, the method includes:

[0097] S101: Obtain the data packets that were not successfully transmitted and the type of the data packets that were not successfully transmitted.

[0098] Wherein, the unsuccessfully transmitted data packet is used as the data packet to be retransmitted; the types of the unsuccessfully transmitted data packet include an I frame, a P frame, and a B frame;

[0099] S102: According to the order of the I frame, the P frame, and the B frame, sequentially transmit the data packets to be retransmitted corresponding to the I frame, the P frame, and the B frame, so as to realize the retransmission of the unsuccessfully transmitted data packets.

[0100] In the video data packet, it is divided into I frame data packet, P frame data packet, and B frame data packet, wherein, the categories corresponding to the I frame data packet are...

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PUM

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Abstract

The invention discloses a data transmission method and system based on an OFDMA mode. The method comprises the following steps of: sequentially transmitting to-be-retransmitted data packets corresponding to the I frame, the P frame and the B frame, so that the retransmission of the data packets which are not successfully transmitted is realized. The importance degrees of the I-frame data packet, the P-frame data packet and the B-frame data packet are sequentially reduced; the priorities are also reduced in sequence; according to the method, transmission is carried out according to the importance degree of the data types, the important data types (I-frame data packets) are firstly transmitted, and then the second important data types are sequentially transmitted, so that the data transmission quality of a network system is improved, data resources are allocated and transmitted in a classified manner, and the data transmission efficiency of the system is also improved.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a data transmission method and system based on an OFDMA mode. Background technique [0002] The latest generation of WLAN standard protocol, IEEE 802.11ax, also known as High-Efficiency Wireless (HEW), is mainly aimed at applications in high-density deployment environments. Compared with the previous protocol, it introduces Orthogonal Frequency Division Multiple Access (OFDMA), which has been applied to many wireless technologies, into the WLAN network standard, thereby improving the utilization of existing frequency band resources. Improve system efficiency and user experience. At the same time, the maximum transmission rate has also been greatly improved compared with previous generations of protocols, with the maximum theoretical data rate reaching 600.4Mbps (80MHz 1SS) and 9607.8Mbps (160MHz 8SS). [0003] However, at present, for the transmission of data pac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L5/00H04L12/927H04L47/80
CPCH04L1/1806H04L5/0007H04L47/805H04L47/83
Inventor 不公告发明人
Owner 浙江云朵网科技股份有限公司
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