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Joint downlink and uplink edge computing migration method in ultra-dense heterogeneous network

A heterogeneous network and edge computing technology, applied in network traffic/resource management, advanced technology, electrical components, etc., to solve problems such as macro base station overload and micro base station underload.

Active Publication Date: 2019-03-01
NORTHWEST UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

For mobile cellular networks, user access depends on the received downlink signal reference power (RSRP, Reference Signal Receiving Power) from the base station, but it will cause macro base station overload and micro base station underload

Method used

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  • Joint downlink and uplink edge computing migration method in ultra-dense heterogeneous network
  • Joint downlink and uplink edge computing migration method in ultra-dense heterogeneous network
  • Joint downlink and uplink edge computing migration method in ultra-dense heterogeneous network

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Embodiment Construction

[0056] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0057] An edge computing migration method for joint downlink and uplink in an ultra-dense heterogeneous network, comprising the following steps:

[0058] In a time division duplex (TDD, Time Division Duplexing) system of an ultra-dense heterogeneous network, multiple users are covered by macrocells and microcells. Suppose N={1,2,3...N}, M={1,2,3...M} and P=[1,2,3...P] represent the set of all users, the set of all macrocells and all microcells . Each user has a task that requires computing, and can access macrocells or microcells, but cannot access macrocells and picocells at the same time, and it is assumed that each task is minimal and indecomposable.

[0059] In order to provide users with edge computing services, the macro cell or micro cell has an edge computing server respectively. For each...

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Abstract

The invention relates to a joint downlink and uplink edge computing migration method in an ultra-dense heterogeneous network. For edge servers in different scales in a macro base station and a micro base station, to satisfy computation-intensive and data-intensive delay sensitive requirements of a mobile intelligent application, an effective joint uplink and downlink access and resource allocationmethod needs to be designed, so that intelligent application delay is reduced. Firstly, a joint uplink and downlink computing migration problem is modelled as the minimum system delay optimization model; furthermore, saving of energy consumption of user equipment is considered at the same time; because the joint downlink and uplink computing migration problem is a mixed integer programming problem, the problem is converted into a resource allocation sub-problem and a computing migration sub-problem; and thus, the effective joint downlink and uplink migration and resource allocation method isprovided. An experimental result verifies the effectiveness of the method in the system delay and energy consumption aspects.

Description

technical field [0001] The invention belongs to the technical field of mobile communication cellular networks, and relates to joint downlink and uplink computing resource allocation, user uplink and downlink access, and joint allocation of downlink and uplink communication resources. migration method. Background technique [0002] Smart user terminals are widely used in various resource-demanding applications, such as augmented reality, multimedia applications, and autonomous driving, etc. Running smart applications on mobile devices results in long response delays, and energy consumption is also a limiting factor for mobile users in terms of available battery capacity. [0003] In order to handle the migration of computing-intensive tasks in real time, the proposal of edge computing can provide users with lower latency and higher performance computing services, while using network edge servers close to users to improve the energy efficiency of mobile devices. Different fr...

Claims

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Application Information

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IPC IPC(8): H04W24/02H04W28/08H04L29/08
CPCH04L67/10H04L67/1008H04L67/101H04W24/02H04W28/08Y02D30/70
Inventor 郑杰刘艺郑勇王文涛许鹏飞汪霖高岭王海杨旭东
Owner NORTHWEST UNIV
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