Wireless resource allocation method for ultra-dense network based on dynamic clustering

An ultra-dense network and wireless resource technology, applied in the field of base station clustering and resource allocation in wireless communication systems, can solve problems such as poor scalability and insufficient dynamics

Active Publication Date: 2020-06-12
JIANGSU HENGXIN TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the shortcomings of insufficient dynamics and poor scalability in the existing resource allocation methods, the technical problem to be solved by the present invention is to provide a dynamic clustering-based ultra-dense network wireless resource allocation method

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  • Wireless resource allocation method for ultra-dense network based on dynamic clustering
  • Wireless resource allocation method for ultra-dense network based on dynamic clustering
  • Wireless resource allocation method for ultra-dense network based on dynamic clustering

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Embodiment Construction

[0035] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0036] figure 1 It is a system framework diagram of the ultra-dense network scene used by the method proposed by the present invention. The scene of the present invention is described in detail: what is described in the figure is an ultra-dense LTE microcellular network, F low-power small base stations are deployed in the network, the set of all small stations is denoted as S, and its spatial distribution model is in a two-dimensional plane with density λ S The independent homogeneous Poisson point process (Homogeneous Poisson Point Process, HPPP). All small base stations share wireless resources of the same frequency band. Set the set of all small base stations as S, in order to reduce interference, divide the small base stations in the network into L clusters, set C={C 1 ,...,C j ,...,C L} represents the set of all clusters, and The total...

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Abstract

The invention discloses a method for allocating wireless resources in an ultra-dense network based on dynamic clustering. The clustering of a large number of base stations provides effective allocation space for intra-cluster resource block allocation of users of different modes; the resource block allocation process, according to the clustering results in step 1, allocates resources to a single base station for central users and intra-cluster CoMP for edge users. Resource allocation is jointly processed. Through the proposed resource block allocation method based on proportional fairness, within the user cluster, the resource blocks with better channel status of the base station are allocated preferentially, while reducing the interference received and ensuring different modes of users. The proportional fairness among them can get the optimal resource block allocation result. The method of the invention can effectively increase the sum rate of system users, and achieve the ultimate goal of optimizing the overall network resources.

Description

technical field [0001] The invention relates to a method for allocating wireless resources in an ultra-dense network based on dynamic clustering, and belongs to the field of clustering and resource allocation of base stations in wireless communication systems. Background technique [0002] With the exponential growth of the number of users and bandwidth requirements, mobile cellular networks are facing enormous challenges. In order to improve the overall network capacity and meet the demand of explosive data traffic, a feasible method is to increase the density of network access points, that is, to deploy dense small cells in the coverage area of ​​macro cells. As the density of network nodes gradually increases, an ultra-dense network (Ultra Dense Network, UDN) will eventually be formed. The ultra-dense network will break the inherent pattern of the traditional cellular network, divert a large amount of data traffic from the macro cell to the micro cell, and can more effec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/32H04W72/04
CPCH04W40/32H04W72/53
Inventor 刘旭周耀朱晓荣杨龙祥朱洪波
Owner JIANGSU HENGXIN TECH CO LTD
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