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Distributed intelligent reflection surface assisted D2D communication method and system

A technology of reflective surface and communication method, applied in diversity/multi-antenna system, transmission system, wireless communication and other directions, can solve problems such as interference between cell users and base stations, and achieve the effect of reducing interference and improving communication rate

Active Publication Date: 2022-02-08
成都三维原光通讯技术有限公司
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Problems solved by technology

[0004] However, because the multiplexed D2D communication will cause interference between the cell users and the base station, the interference range includes the interference of the uplink frequency band to the base station, the interference of the downlink frequency band to the D2D receiver, and the interference of the D2D transmitter to the cellular network, etc., so D2D technology needs to combine and Interference must be controlled within a certain range

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  • Distributed intelligent reflection surface assisted D2D communication method and system
  • Distributed intelligent reflection surface assisted D2D communication method and system
  • Distributed intelligent reflection surface assisted D2D communication method and system

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Embodiment Construction

[0031] The application will be described in further detail below in conjunction with the accompanying drawings.

[0032] refer to figure 1 and Picture 1-1 , a distributed intelligent reflective surface assisted D2D communication method, comprising the following steps:

[0033] S110. Deploy at least one intelligent reflective surface IRS in the cell to construct at least one D2D pair, and each D2D pair includes two cell users.

[0034] Among them, the intelligent reflective surface IRS (Intelligent Reflecting Surface) reconfigures the wireless propagation environment by integrating a large number of low-cost passive reflective elements on the plane, thereby improving the performance of the wireless communication network, that is, the IRS independently The beamforming vector is obtained by reflecting the incident signal from the ground. The cell is also called a cell, which refers to the area covered by a base station or a part of the base station (sector antenna) in the cell...

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Abstract

The invention discloses a distributed intelligent reflection surface assisted D2D communication method and system, and the method comprises the steps: arranging at least one intelligent reflection surface IRS in a cell, and constructing at least one D2D pair, wherein each D2D pair comprises two cell users; establishing an uplink data transmission rate model of all D2D pair cell users in the cell; establishing a communication rate model of all D2D pairs in the cell; and performing optimization based on the uplink data transmission model and the communication rate model, so that the optimized D2D communication rate and the uplink data transmission rate of the cell user meet preset requirements. According to the method and the device, the IRS is introduced, so that interference on cell user communication in the D2D pair communication process is reduced, and meanwhile, the transmission rate of communication between the D2D pairs is improved.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a D2D communication system assisted by a distributed intelligent reflective surface. Background technique [0002] At present, in the existing communication system, the communication between devices is controlled by the base station of the wireless communication operator. Because the capabilities of the communication devices and the channel resources of wireless communication are relatively limited between the terminals, it is impossible to communicate between the terminals. Direct voice or data communication, and in the next generation of communication technology, terminal direct communication D2D (Device-To-Device Communication) has attracted more and more commercial interest. Terminal direct communication refers to the use of wireless LAN technology between terminal devices (WI-FI), Bluetooth technology (Bluetooth) and the fourth generation communication technology (LET-D...

Claims

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Application Information

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IPC IPC(8): H04W24/02H04W24/06H04W28/02H04W28/22H04B7/06
CPCH04W28/0215H04W28/22H04W24/02H04W24/06H04B7/0617Y02D30/70H04B7/04013
Inventor 徐齐钱陈海军何春龙
Owner 成都三维原光通讯技术有限公司
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