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Adaptive power allocation system, method and medium for microcell base stations

A technology of cellular base stations and distribution methods, which is applied in wireless communication, electrical components, etc., and can solve problems such as deterioration of network performance and user QoS

Active Publication Date: 2022-07-29
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in such a complex and dynamic network environment, it may easily cause severe ICI, thereby significantly deteriorating network performance and users' QoS

Method used

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  • Adaptive power allocation system, method and medium for microcell base stations
  • Adaptive power allocation system, method and medium for microcell base stations
  • Adaptive power allocation system, method and medium for microcell base stations

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Embodiment

[0278] A typical two-tier city model is considered, which is certified by 3GPP and widely used. Specifically, the simulated scenario is a two-story building with 2×5 apartments on each floor, and the size of each apartment is 10m*10m *3m, as shown in Figure 2(a). To be more realistic, on the basis of the typical two-tier city model, further consider the internal structure of each apartment as shown in Fig. 2(b).

[0279] Note that due to the greater distance, the greater the path loss, the less interference formed. According to the rough calculation of the Keenan-Motley multi-wall model, the minimum path loss between the base station and the user two floors apart is about -79dB, and the impact is negligible. Therefore, there is no need to consider further base stations, and 20 base stations can fully verify the algorithm. effectiveness.

[0280] Each apartment has an SBS. UEs are evenly distributed in the coverage area of ​​SBSs. Furthermore, three service types are define...

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Abstract

The invention discloses an adaptive power distribution system, method and medium for microcell base stations, relates to the field of cellular data processing, and solves the problem of how to minimize the long-term average total sum of each user equipment under the condition that the transmission rate of each user equipment is satisfied. transmission power problem. The invention includes: building a decision model, in which the small base station acts as an entity to autonomously perceive the surrounding interference and allocate transmission power to its service users, and the model includes a virtual agent; the coordination decision of the small base station corresponds to the action of the agent, and the continuous action vector The action space is formed, and the reward is used to evaluate the action. All agents take actions at the same time, and all the immediate rewards obtained constitute the reward space; the reward feedback is used to optimize the coordinated decision-making of the small base station, and the reward feedback is used to optimize the action of the agent: build in the model The MARL framework is used to optimize the strategy, and the strategy is the feedback process of reward to action and coordinated decision-making. The present invention minimizes the long-term average total transmission power of each UE under the condition that the transmission rate of each UE is satisfied.

Description

technical field [0001] The present invention relates to the field of cellular data processing, in particular to an adaptive power distribution system, method and medium for microcell base stations. Background technique [0002] The past few years have seen explosive growth in data traffic and the rapid adoption of smart devices and wearables. According to wireless usage statistics, more than 70% of data traffic and 50% of voice calls occur indoors, and users spend more than 80% of their time in an indoor environment. [0003] However, very high penetration loss due to occlusion by building walls seriously compromises the data rate, spectral efficiency, and energy efficiency of indoor wireless transmission. At the same time, 5G and beyond 5G system requirements will use new higher frequency spectrum, namely: microwave frequency band (3.3-4.2GHz) to meet the demand. [0004] However, higher frequency bands will lead to higher losses, thus bringing great challenges to indoor ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/08
CPCH04W72/0473H04W72/54
Inventor 王亚彤冯钢秦爽
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA