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Method of improving received signal strength in IRS assisted wireless communication system

A technology for receiving signal strength and wireless communication systems, which is applied in wireless communication, radio wave measurement systems, instruments, etc., and can solve problems such as unguaranteed communication quality, difficulty in optimal reflection coefficient matrix, and low received signal strength

Active Publication Date: 2020-05-15
武汉瑞斯通信科技有限公司
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Problems solved by technology

[0010] However, the optimal reflection coefficient matrix on the IRS is difficult to obtain effectively through the existing technology, resulting in the signal transmitted by the AP after being reflected by the IRS, the received signal strength at the UE side is not high, and the communication quality cannot be guaranteed

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  • Method of improving received signal strength in IRS assisted wireless communication system
  • Method of improving received signal strength in IRS assisted wireless communication system
  • Method of improving received signal strength in IRS assisted wireless communication system

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Embodiment Construction

[0077] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0078] see Figure 1 to Figure 12 , the present invention provides a technical solution: a method for improving received signal strength in an IRS-assisted wireless communication system;

[0079] In this embodiment, the IRS is the most common rectangular structure, and a transceiver is respectively installed at a suitable position of the IRS;

[0080] IRS: The reflection units are R rows, C columns ([R, C]=[64,128]), the total number of reflection units is R*C (64*128=8192), and the interval between reflection units in a row is Dr, The interval between units in a column is Dc([Dr, Dc]=[0.005, 0.005]), the unit length is 1m, the reflection unit at the lower left corner of the IRS is the origin of the three-dimensional coordinate system, and the co...

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Abstract

The invention provides a method for improving received signal strength in an IRS-assisted wireless communication system. The method comprises the following steps of: respectively configuring M transceivers at proper positions of an IRS, when the positions of an AP and UE are unknown, sending signals by the transceivers, and respectively detecting the distance between the transceivers and the AP and the distance between the transceivers and the UE; and calculating to obtain estimated positions of the AP and the UE by adopting a positioning method. The method for improving the received signal strength in the IRS-assisted wireless communication system is reasonable in design, the transceiver is arranged on the IRS to determine the position of the AP or the UE, and the estimated and calculatedpositions of the AP and the UE are more accurate, so that the calculated reflection coefficient matrix is better, the received signal strength of the communication system is higher, and the spectralefficiency of the system is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of 5G wireless communication, and in particular relates to a method for improving received signal strength in an IRS-assisted wireless communication system. Background technique [0002] In the field of 5G wireless communication, because the transmission of high-frequency signals (such as millimeter waves or terahertz waves) is easily blocked by obstacles, the effect of wireless communication is not good. In order to solve this problem, there is an idea: through a specially manufactured low-cost, passive, reflective, reconfigurable smart surface (Metasurface / LIS / Large Intelligent Surface / Reconfigurable reflectarrays / Intelligent walls / Software-controlled metasurfaces / Intelligent Reflecting Surface / IRS, hereinafter are expressed by IRS), especially when the signal strength between the AP (Access Point) and the user UE (User Equipment) is too weak to communicate efficiently due to occlusion, you can use the AP...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00G01S5/06
CPCG01S5/06H04W64/006
Inventor 徐雄尹海帆
Owner 武汉瑞斯通信科技有限公司
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