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Cell-oriented amorphous coverage small base station deployment method in cellular network

An amorphous coverage, cellular network technology, applied in the field of small base station deployment, can solve the problem that small base stations do not have a special deployment method.

Active Publication Date: 2015-02-25
CERTUS NETWORK TECHNANJING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, there is no dedicated deployment method for optimizing the deployment position of small cells in combination with the amorphous coverage formed by the collaboration between small cells

Method used

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  • Cell-oriented amorphous coverage small base station deployment method in cellular network
  • Cell-oriented amorphous coverage small base station deployment method in cellular network
  • Cell-oriented amorphous coverage small base station deployment method in cellular network

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Embodiment Construction

[0053] The present invention is described in detail below in conjunction with accompanying drawing:

[0054] The present invention proposes a small base station deployment method that maximizes the average throughput of multiple user distribution systems. The application scenarios of the small base station deployment method are as follows figure 1 As shown, the amorphous coverage of cells is used to ensure the system capacity under different user distributions. The method of the present invention is described below through a specific example, assuming that a macro sector (Macro Sector) is a deployment area, there are M users, there are P types of user distribution, and the pth user distribution (p=1, 2,... ,P) the probability of occurrence is α p , n small base stations need to be deployed, and N={1,2,...,n} represents a set of small base stations. For ease of understanding, this invention is described as the following optimization problem:

[0055] max ...

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Abstract

The invention discloses a cell-oriented amorphous coverage small base station deployment method in a cellular network. The method aims at maximizing multi-user distribution system average throughout capacity. The multi-user distribution system average throughout capacity under different small base station position vectors is calculated by means of a given collaborative cell building and resource scheduling method; a small base station deployment position enabling the throughout capacity to be maximum is found based on a given position updating algorithm, and multi-user distribution is considered to the greatest degree. Compared with a traditional method, the cell-oriented amorphous coverage small base station deployment method is more applicable to an actual site; in consideration of the user distribution tidal phenomenon, when user distribution is changed, the determined small base station position enables adjacent small base stations to change the collaboration way more effectively in real time, so that a traditional fixed cell shape is changed, and the system performance requirement for distribution of different users is met. By the adoption of the cell-oriented amorphous coverage small base station deployment method, the system average throughout capacity, margin user performance and user fairness can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a small base station deployment method for cell amorphous coverage in a cellular network. Background technique [0002] With the rapid growth of wireless communication data volume, the homogeneous network under the macro cell structure can no longer meet the huge mobile data demand, and the heterogeneous network with macro-small cell coexistence has the advantages of improving network capacity, which has attracted academia and industry. However, with the intensive scheduling of small base stations (Small Base Stations, SBSs), cross-layer interference between small base stations and macro base stations (Macro Base Stations) and same-layer interference between small base stations have become an urgent problem to be solved. Therefore, the Phantom cell structure is proposed. The main feature of this structure is the separation of the control plane (Control Plane) a...

Claims

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Application Information

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IPC IPC(8): H04W16/20
CPCH04W16/20
Inventor 罗新民董爱红杜清河
Owner CERTUS NETWORK TECHNANJING
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