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A wireless communication method and device

A wireless communication and complex signal technology, applied in the field of communication, can solve the problems of delay and poor data reception sensitivity performance, and achieve the effect of reducing delay, ensuring data throughput, and improving sensitivity performance

Active Publication Date: 2021-01-08
SHENZHEN RENERGY TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a wireless communication method and device to solve the problem of poor data reception sensitivity and delay in the wireless transmission process in the prior art

Method used

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  • A wireless communication method and device
  • A wireless communication method and device
  • A wireless communication method and device

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Embodiment Construction

[0039] In the following description, specific details such as specific system structures and technologies are presented for illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0040] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0041] see figure 1 , figure 1 It is a flowchart of a wireless communication method provided by an embodiment of the present invention. The execution subject in this embodiment is a device with a wireless communication function, which may be a sending device, a wireless sensor node...

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Abstract

The invention, which is applicable to the field of the communication technology, provides a wireless communication method and apparatus. The method comprises: a to-be-modulated data bit stream is modulated at a transmitting terminal to obtain a first complex signal corresponding to the data bit stream, a pseudo-random sequence is generated based on the data bit stream, and the pseudo-random sequence is modulated to obtain a second complex signal corresponding to the pseudo-random sequence; the first complex signal and the second complex signal are combined to form a physical frame; and then the physical frame is processed to obtain an analog signal and the analog signal is transmitted to a receiving terminal. The structure of the physical frame is simplified, so that the data redundancy ofthe data stream in the modulation process is reduced. The second complex signal is determined at the receiving terminal by a quick synchronous capturing method, digital feedback loop carrier recoveryis carried out on the first complex signal, and then channel error correction and decoding are carried out to obtain a demodulated data bit stream, so that the receiving and processing delay costs are lowered and the data throughput rate of the system and the flexibility of the data receiving are improved effectively.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a wireless communication method and device. Background technique [0002] The Internet of Things puts forward higher requirements on data transmission performance. In order to ensure network coverage, long transmission distances between devices and low receiving sensitivity are required. Terminal nodes are usually powered by batteries, which require devices to have low operating performance. consumption. Devices may face more complex network applications and interference environments, which require the system to have more flexible networking and stronger anti-interference capabilities. [0003] The mainstream wireless Internet of Things data transmission technologies in the prior art mainly include wireless fidelity Wifi, Bluetooth, and mobile communication networks. Among them, Wifi uses transmission technologies such as spread spectrum DSSS and orthogonal fr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26
CPCH04L27/2602H04L27/2627H04L27/2646H04L27/2657
Inventor 陈力丘聪陈世超赵琮吴晓立丘家行
Owner SHENZHEN RENERGY TECH
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