Indoor terahertz BWP and power scheduling method and device

A power scheduling and terahertz technology, applied in the field of mobile communications, can solve problems such as power consumption, impact on economic benefits, and difficulty in rational use of resources

Active Publication Date: 2021-03-19
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0004] However, in terms of resource scheduling, the existing technology mainly focuses on power scheduling, and ignores the consideration of the bandwidth part (BWP). From the perspective of radio frequency signal processing, the use of wide bandwidth may cause unnecessary power consumption, resulting in Resources are difficult to use rationally, which affects economic benefits

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  • Indoor terahertz BWP and power scheduling method and device
  • Indoor terahertz BWP and power scheduling method and device
  • Indoor terahertz BWP and power scheduling method and device

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[0069] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0070] Embodiments of the present invention first provide an indoor terahertz BWP and power scheduling method, such as figure 1 As shown, the method includes the following steps:

[0071] S1. Initialize the parameters and states of the wireless access device (AP), the user and the intelligent reflective surface (IRS), including the initial transmit power p 0 , the policy parameter θ 0 :={μ 0 ,σ 0}, the Lagrange multiplier λ 0 ,φ 0 ;

[0072] S2. Draw samples from a truncated standard normal distribution

[0073] S3. Calculate the terahertz path loss L(f, d) and the channel gain h j,k , including the transmission path from the wireless access device to each user and the transmission path from the wireless access device to the user th...

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Abstract

The invention discloses an indoor terahertz BWP and power scheduling method and device. The indoor terahertz BWP and power scheduling method comprises the steps of: compensating a defect that a terahertz wave is not suitable for indoor transmission through employing an intelligent reflection surface IRS and NOMA, converting an indoor environment where terahertz is matched with IRS propagation intoa channel model, and converting the optimal wireless resource scheduling in the indoor terahertz IRS auxiliary system into a function optimization design with random constraints; adopting PPO to train strategies and corresponding actions so as to schedule power and bandwidth, wherein an actor part generates continuous power scheduling, and a reviewer part generates discrete bandwidth scheduling;meanwhile, adopting gradient-assisted primal-dual solving to obtain the optimal solutions of the two resource schedules, and then providing an iterative joint bandwidth and power scheduling method toimprove the information transmission rate and economic benefits to the maximum extent. According to the indoor terahertz BWP and power scheduling method and the device, reasonable scheduling of indoorbandwidth and power resources can be realized, and maximization of economic benefits and energy effectiveness can be realized.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to an indoor terahertz BWP and power scheduling method and device based on PPO dual training in an IRS-assisted scenario. Background technique [0002] In the development of wireless communication technology, spectrum resources have always been scarce and precious resources. Today, as one of the key technologies of wireless communication, millimeter wave has received extensive attention from the industry and academia. In the upcoming 6G era, terahertz will trigger the revolutionary development of science and technology with its higher bandwidth and narrower beam. However, when terahertz waves propagate in the air, water molecules cause transmission loss, so terahertz communication is more suitable for short-distance communication. However, there are many obstacles in indoor environments, such as furniture, appliances, and moving people, and terahertz waves hav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/24H04W72/12
CPCH04W52/241H04W72/535H04W72/0453H04W52/242H04W52/50H04W52/346H04L5/001H04W72/542H04L5/0023H04L5/0037H04L5/006H04W72/53
Inventor 张海君刘向南隆克平
Owner UNIV OF SCI & TECH BEIJING
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