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Full-duplex self-interference cancellation wireless signal transceiving system and wireless signal transceiving method

A technology of self-interference cancellation and wireless signal, which is applied in the field of wireless signal processing and communication, can solve the problem of insufficient optimization of self-interference cancellation of full-duplex system, reduce the risk of signal detection, save the synchronization sequence, and achieve low cost Effect

Active Publication Date: 2018-12-18
SHANGHAI ZHILIANG ELECTRONICS TECH CO LTD
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  • Application Information

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Problems solved by technology

Therefore, the design of these pilots is not optimal for self-interference cancellation in full-duplex systems

Method used

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  • Full-duplex self-interference cancellation wireless signal transceiving system and wireless signal transceiving method
  • Full-duplex self-interference cancellation wireless signal transceiving system and wireless signal transceiving method
  • Full-duplex self-interference cancellation wireless signal transceiving system and wireless signal transceiving method

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Embodiment Construction

[0070] In order to understand the technical content of the present invention more clearly, the following embodiments are given for detailed description.

[0071] In one embodiment, as image 3 and Figure 4 As shown, the full-duplex self-interference cancellation wireless signal transceiving system includes a signal sending subsystem and a signal receiving subsystem.

[0072] Wherein, the signal transmission subsystem includes: a digital transmission signal generation unit, a digital-to-analog converter and a transmission antenna.

[0073] The digital transmission signal generating unit is used to combine the pilot pulse and the data pulse according to the pilot design to form a framed digital transmission signal;

[0074] A digital-to-analog converter is used to convert the digital transmission signal into an analog transmission signal;

[0075] The transmitting antenna is connected to the digital-to-analog converter through a transmitting radio frequency channel, so as to...

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Abstract

The invention relates to a wireless signal receiving and transmitting system and a wireless signal receiving and transmitting method for full-duplex self-interference cancellation, and belongs to the field of the communication technology. In the system, a signal transmission subsystem combines a pilot frequency pulse and a data pulse according to pilot frequency design, and a framing digital emission signal is formed; a signal receiving subsystem cancels self interference in a digital receiving signal according to the pilot frequency design, and an estimation receiving signal is obtained. Therefore, the special pilot frequency design can be used for realizing self interference elimination, a pilot frequency pattern has pseudo-random characteristics, a wireless signal can not be easily detected, meanwhile, a synchronization sequence in the pilot frequency design in the prior art is omitted, pilot frequency expenditures are lowered, signal power is improved, furthermore, a risk that the signal is detected is lowered, and the wireless signal receiving and dispatching system is especially suitable for a full-duplex base station system. The system disclosed by the invention has the advantages of relatively simple structure and low implementation cost. The method has the advantages of convenient application way and wide application range.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to the technical field of wireless signal processing, and in particular to a full-duplex self-interference cancellation wireless signal transceiving system and wireless signal transceiving method. Background technique [0002] When the receiving subsystem and the transmitting subsystem of the wireless signal work at the same time and frequency, the system is called a full-duplex system. In terms of spectrum utilization, the full-duplex system can double the spectrum utilization compared with the traditional time-division duplex or frequency-division duplex. In solving the electromagnetic compatibility problem of the transceiver system, the system also has the advantages of small equipment size and no coverage blind area caused by the transceiver time-sharing isolation compared with the traditional space transceiver isolation and transceiver time-sharing isolation. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40H04L5/00
CPCH04B1/40H04L5/003H04L5/0048H04L5/0094
Inventor 杨红卫
Owner SHANGHAI ZHILIANG ELECTRONICS TECH CO LTD
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