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Resource allocation method in software defined mobile networks

A resource allocation and mobile network technology, applied in electrical components, digital transmission systems, transmission systems, etc., can solve problems such as difficulty in finding the optimal solution

Active Publication Date: 2016-12-07
SOUTHEAST UNIV
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Problems solved by technology

[0006] Due to the combined characteristics of the objective function of the established optimization problem and the discrete non-convex nature of the constraints, the original optimization problem is a non-convex problem. When the number of users or the number of sub-channels is large, it is often difficult to find its optimal solution

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  • Resource allocation method in software defined mobile networks
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  • Resource allocation method in software defined mobile networks

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Embodiment Construction

[0044] The present invention will be further clarified below in conjunction with the drawings and specific embodiments.

[0045] Such as figure 1 As shown, SDMNs mainly include a control plane, a mobile core network, and a radio access network. The control plane of SDMNs manages the entire network and obtains information such as the status of user equipment in the network, link status, and network topology. MUE and FUE are located in the SDMNs access network layer. Macrocell and Femtocell form a two-layer network architecture. MBS or FBS manages the MUE or FUE directly connected to them, and performs operations such as user information collection, upload, and data forwarding. The SDMNs control plane has powerful computing and storage capabilities, and can be composed of server clusters to manage the access network and core network in the mobile network. According to the actual situation, the SDMNs control plane can be separately deployed on the network side and the access side. ...

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Abstract

The invention discloses a resource allocation method in software defined mobile networks (SDMNs). The method comprises the following steps that 1, each MBS (Macrocell Base Station) performs resource allocation on MUE (User Equipment in Macrocell) and uploads a sub-channel allocation result to an SDMNs control surface; 2, each FUE (User Equipment in Femtocell) estimates a channel gain and uploads the estimated channel gain to the SDMNs control surface; 3, each FBS (Femtocell Base Station) obtains a channel gain of the FUE in a Femtocell and uploads the obtained channel gain to the SDMNs control surface; 4, a convex optimization problem is established by taking a maximized FUE access number and a minimized occupied sub-channel number as target functions; and 5, solving the convex optimization problem established in the step 4 to obtain a global optimal solution, namely, an optimal user access and channel allocation combined scheme and power allocated to each sub-channel. According to the method, the FUE required to access the networks is subjected to access control on the premise of ensuring QoS of access users, so that the number of FUE accessing the network is maximized and the number of occupied channels is minimized.

Description

Technical field [0001] The invention belongs to the field of wireless resource management in a mobile network, and specifically relates to a resource allocation method in a software-defined mobile network. Background technique [0002] In order to meet the huge changes in the air interface and network layer of cellular networks, Software Defined Networking (SDN) will become an important technology in the future. Its core concept is to abstract network functions and business processing, and through external Set the controller to control these abstract objects. SDN separates the control and forwarding of network services into a control plane and a forwarding plane, and provides a standard interface between the control plane and the forwarding plane. [0003] In mobile networks, drawing on the design concept of SDN can effectively solve the current difficult problems of cellular and other wireless access networks, such as managing heterogeneous and complex networks, and further catal...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/04
CPCH04L5/0094H04W72/0473
Inventor 夏玮玮章跃跃燕锋朱亚萍沈连丰宋铁成胡静
Owner SOUTHEAST UNIV