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Data sending method, device and system applying electromagnetic metasurface array

A data transmission method and electromagnetic super technology, applied in the field of communication, can solve problems such as out-of-band interference

Active Publication Date: 2021-12-03
HUAWEI TECH CO LTD
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  • Claims
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Problems solved by technology

[0005] The embodiment of the present application provides a data transmission method, device and system using an electromagnetic metasurface array, which is used to solve the problem of serious out-of-band interference caused by simultaneously modulating amplitude and phase with harmonics in the prior art

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  • Data sending method, device and system applying electromagnetic metasurface array
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  • Data sending method, device and system applying electromagnetic metasurface array

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Embodiment Construction

[0112] figure 1 It is a system schematic diagram of a transmitter based on an electromagnetic metasurface array in the prior art, such as figure 1 As shown, the single-tone signal is emitted by the transmitting signal source in the transmitter, and the single-tone signal is amplified by a power amplifier (power amplifier, PA) and then coupled to the feed antenna to be sent out as a modulated carrier signal (incident electromagnetic wave). Electromagnetic metasurface array. At the same time, the baseband data stream is first grouped according to the transmission scheme configured by the system. Exemplarily, the data stream is 0010101101, and the modulation mode is quadrature phase shift keying (quadrature phase shift keying, QPSK) modulation mode, then the input stream data is composed into a symbol every two bits in order, and then, based on the QPSK modulation mode The constellation mapping relationship of each symbol corresponds to the phase information. After obtaining t...

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Abstract

The embodiment of the invention provides a data sending method, a device and a system applying an electromagnetic metasurface array. The method comprises the following steps: obtaining first to-be-sent data, and after the first to-be-sent data is obtained, according to the constellation information of the first to-be-sent data and the mapping relation between the constellation information and a sub-array, determining a first target sub-array used for sending the first to-be-sent data, the first target sub-array being a sub-array of an electromagnetic metasurface array, and the first target sub-array comprising a preset number of array units; and after the first target sub-array is determined, controlling the first target sub-array to perform amplitude and phase modulation on an incident carrier signal reaching the first target sub-array according to the constellation information, and sending a carrier signal corresponding to the modulated first to-be-sent data by the first target sub-array. According to the mode, the problem of out-of-band interference can be avoided while the simultaneous modulation of the amplitude and the phase is realized, and the data transmission quality and the data receiving are ensured not to be influenced.

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular to a data transmission method, device and system using an electromagnetic metasurface array. Background technique [0002] A traditional base station can be configured with a multiple-input multiple-output (multiple-input multiple-output) transmitter, and each antenna unit or virtual antenna unit array of the transmitter corresponds to an independent radio frequency channel. Although this kind of transmitter has the advantages of being able to realize multi-user multi-stream transmission at the same time and effectively suppress multi-user multi-cell interference, but at the same time, this kind of transmitter has a complex hardware structure, a large number of active antennas, and a large number of radio frequency circuits. The hardware structure of the system brings the problems of low system energy conversion efficiency and huge energy con...

Claims

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Application Information

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IPC IPC(8): H04B7/06H04L27/34
CPCH04L27/3483H04L27/3405H04L27/34H04B7/0617Y02D30/70H04B7/04013
Inventor 孙欢
Owner HUAWEI TECH CO LTD
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