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Packet data transmission method and system in wireless network

A small packet data and wireless network technology, applied in radio transmission systems, transmission systems, diversity/multi-antenna systems, etc., can solve problems such as immature non-orthogonal technology, achieve good PAPR characteristics, good signal recovery accuracy, reduce effect of complexity

Active Publication Date: 2016-09-28
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology

In summary, these non-orthogonal technologies are still immature, and they all have their own problems that need to be overcome

Method used

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  • Packet data transmission method and system in wireless network
  • Packet data transmission method and system in wireless network
  • Packet data transmission method and system in wireless network

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Embodiment Construction

[0060] The present invention provides a small packet data transmission method and system in a wireless network. The method first constructs a precoding matrix, then extends the length of the small packet data, and then sends it to a channel for transmission. At the receiving end, a normalized BOMP algorithm is adopted To recover the packet data. The precoding matrix constructed by the present invention has the following advantages: enough precoding matrices can be generated for multiple user connections; better signal recovery accuracy is obtained than randomly generated precoding matrices; and the complexity of small packet data transmission is reduced; This makes the precoded symbols obtain statistically good PAPR characteristics.

[0061] figure 1 For the flow chart of the small packet data transmission method in the wireless network provided by the present invention, as figure 1 As shown, the methods include:

[0062] S0, constructing a precoding matrix;

[0063] S1, a...

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Abstract

The invention provides a packet data transmission method and system in a wireless network. The method comprises establishing precoding matrixes, carrying out length extension on packet data, then sending the packet data to channels for transmission, and restoring the packet data by use of a normalized BOMP algorithm at a receiving end. The precoding matrixes established by the method and the system have the advantages that enough precoding matrixes can be generated for multiple user connections; compared with randomly generated precoding matrixes, through adoption of the precoding matrixes established by the method and the system, the better signal restoring accuracy can be obtained; the transmission complexity of the packet data can be reduced; and the pre-coded symbols have statistically good PAPR (peak to average power ratio) characteristics.

Description

technical field [0001] The invention belongs to the field of wireless communication, in particular to a small packet data transmission method and system in a wireless network. Background technique [0002] With the rapid popularization of smart terminals such as smartphones and tablets, the number of users of the small packet service has increased rapidly. Correspondingly, the small packet data generated in the communication network is also increasing rapidly. Typical small packet businesses include instant messaging services such as Tencent QQ, and social networking platforms such as Facebook. It can be said that a typical feature of business data generated by smart terminals is that the data is in small packets. The small package service has greatly changed the way of life, study, and work of users (especially young user groups). [0003] The small packet service, as the name implies, means that the data packets generated by the service are very short; basically, the le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J13/00H04B7/04
CPCH04B7/0456H04J13/004
Inventor 谢榕贵尹华锐陈晓辉卫国
Owner UNIV OF SCI & TECH OF CHINA
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