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A Load Offloading Method Under Non-Orthogonal Multiple Access Mechanism

A non-orthogonal multiple access and mechanism technology, applied in the direction of data exchange network, advanced technology, wireless communication, etc., can solve the problem of reducing the number of active users, and achieve the effect of effective load unloading control and large system throughput

Active Publication Date: 2021-11-26
CHANGSHU INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing non-orthogonal multiple access technology-based load offloading method mainly aims at maximizing network throughput for user scheduling, resulting in a significant reduction in the number of active users in the network, which is not suitable for next-generation mobile communication networks Features of coexistence of ultra-large-scale end users, such as the Internet of Things (IoT, Internet of Things), etc.

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  • A Load Offloading Method Under Non-Orthogonal Multiple Access Mechanism
  • A Load Offloading Method Under Non-Orthogonal Multiple Access Mechanism

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Experimental program
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Embodiment Construction

[0019] like figure 1 As shown in a non-orthogonal multiple access is applied to the offloading mechanism, comprising the steps of:

[0020] (1) is in an overload state according to a load decrease downlink base station total power of active users or the minimum data transmission rate is determined to improve system NOMA;

[0021] (2) All users on NOMA different single subcarrier, the user intends to uninstall the first set of re-classification;

[0022] (3) base stations based on a different network to collect NOMA mechanisms respective user channel gain and minimum data transfer rates, and downlink base station total power network-related parameters, the set comprising a specific user according to the user intends to uninstall the number of each fixed element, the user intends to uninstall a second set of re-classification;

[0023] (4) the combined set of all users intended for unloading comprise different individual users, according to the base station total downlink power P ma...

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Abstract

The invention discloses a load unloading method under a non-orthogonal multiple access mechanism. Based on the scenario under the NOMA mechanism, the user set that can be unloaded is judged according to network parameters such as the total downlink power and the minimum data transmission rate of the user, and in On the basis of ensuring the minimum data transmission rate of active users and maximizing the number of active users in the network, the judgment of offloading users is made from the set of offloadable users with the goal of maximizing the throughput of the NOMA system. The load unloading method of the present invention effectively guarantees the minimum data transmission rate requirement of active users under the NOMA mechanism; the load unloading method can obtain a relatively large throughput under the premise of ensuring the maximum number of active users, and realizes a dynamic and flexible load unloading scheme .

Description

Technical field [0001] The present invention relates to wireless communication technologies, and in particular to a load shedding method in a non-orthogonal multiple access scheme. Background technique [0002] In the key technology of next generation mobile communications research, how to improve the spectrum utilization of the network is one of the key elements of wireless communications research. Face orthogonal multiple access (OMA, Orthogonal Multiple Access) technology spectrum utilization is limited, non-orthogonal multiple access techniques have been proposed to deal with the number of next generation wireless communication terminal exponentially, to meet the greatly increasing the number of total available network terminating device and improve the throughput of the network without changing the spectral width. However, in non-orthogonal multiple access technology application scenario, when the total active power reduction or may cause network overload occurs overload phe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/08H04W28/10H04W24/08H04L12/26
CPCH04L43/0888H04W24/08H04W28/08H04W28/10Y02D30/70
Inventor 刘诚毅
Owner CHANGSHU INSTITUTE OF TECHNOLOGY