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A full duplex communication apparatus and method

A communication device and full-duplex technology, applied in the field of communication, can solve problems such as unsatisfactory effect and increased complexity of interference elimination.

Active Publication Date: 2020-11-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Some methods of how to eliminate self-interference in full-duplex communication have been proposed in the prior art, but in multi-antenna application scenarios, the complexity of interference elimination rises sharply, and the current method of eliminating interference in full-duplex communication cannot be very good. To solve the problem of interference cancellation, the effect of applying these methods to multi-antenna scenarios is still not ideal

Method used

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  • A full duplex communication apparatus and method

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Embodiment Construction

[0053] Embodiments of the present application provide a full-duplex communication device and method, which help to eliminate interference in a multi-antenna application scenario. Wherein, the device and the method are based on the same idea, and since the problem-solving principles of the device and the method are similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated. In the description of the embodiments of the present application, "and / or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and / or B, which may mean: A exists alone, A and B exist simultaneously, and There are three cases of B. The character " / " generally indicates that the contextual objects are an "or" relationship. The at least one involved in this application means one or more; the multiple involved means two or more. In addition, it should be under...

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Abstract

The invention provides a full duplex communication device and a full duplex communication method, which are used for eliminating interference in a multi-antenna application scene. The device comprisesone or more full duplex units. Each full duplex unit comprises a power division module, a transmit-receive antenna, a cancellation antenna and a combination module. The power dividing module is usedfor dividing a signal to be sent into a first signal and a second signal, the transceiving antenna is used for sending the first signal through the first sending port and receiving a third signal through the first receiving port, and the third signal comprises an interference signal and signals sent by other communication devices; the offset antenna is used for sending the second signal through the second sending port and receiving an offset signal through the second receiving port; and the combining module is used for carrying out differential combination on the third signal and the offset signal and outputting a signal after interference offset, and the scattering parameter matrixes of all the transmitting and receiving antennas are the same as the scattering parameter matrixes of all the offset antennas.

Description

[0001] This application claims the priority of the Chinese patent application submitted to the China Patent Office on April 30, 2019, with the application number 201910364410.7 and the title of the invention "a full-duplex communication device and method", the entire contents of which are incorporated herein by reference Applying. technical field [0002] The embodiments of the present application relate to the field of communication technologies, and in particular, to a full-duplex communication device and method. Background technique [0003] Full duplex (full duplex, FD) communication is to send and receive data on the same time, frequency and channel. Wireless full-duplex communication technology has always been a research hotspot in the field of communication. However, since the transmitting and receiving links work on the same time-frequency resources, the transmitting link will cause strong interference to the receiving link, and the interference signal is stronger th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/40H04B1/10H04L5/14
CPCH04B1/10H04B1/40H04L5/14
Inventor 刘大庆王斌刘小成王俊李榕乔云飞
Owner HUAWEI TECH CO LTD
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