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Coverage probability estimation method for cooperation of small base stations

A technology of small base station and coverage probability, applied in wireless communication, electrical components, network planning, etc., can solve problems such as limiting spectral efficiency and system coverage, and achieve the effect of improving accuracy

Active Publication Date: 2016-03-30
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

In the case of heterogeneous networks, there is unavoidable co-channel interference between small base stations and macro base stations, which is one of the main factors limiting spectrum efficiency and system coverage

Method used

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  • Coverage probability estimation method for cooperation of small base stations
  • Coverage probability estimation method for cooperation of small base stations
  • Coverage probability estimation method for cooperation of small base stations

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0031] figure 1 It is a schematic diagram of the Voronoi diagram cell division structure under the heterogeneous network in the present invention;

[0032] In this example, figure 1 The network shown is a heterogeneous network consisting of two independent network layers deployed by base stations with different densities, and the transmit power of base stations in each layer is different. Und...

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Abstract

The invention discloses a coverage probability estimation method for cooperation of small base stations, comprising the following steps: stochastically modeling the positions of micro base stations and small base stations; performing cell allocation through a Thiessen polygon Voronoi diagram; and on the basis, estimating the coverage probability after cooperation of two small base stations serving a user according to the position of the user in a network. Because of stochastic modeling and rational cell allocation and the consideration of the influence of environmental factors on the coverage probability in the estimation process, the coverage probability for cooperation of small base stations can be acquired more accurately, and convenience is provided for network performance analysis and comparison and small base station deployment and planning.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a method for estimating coverage probability of cooperation of small base stations. Background technique [0002] With the gradual increase in the penetration rate of mobile smart terminals, wireless networks with continuous and deep coverage have become a key factor affecting terminal user experience. The original macro base station and the traditional distributed antenna system (DAS) coverage solution can no longer meet the growing demand for capacity and higher-level experience requirements. [0003] Due to its advantages of large capacity, good coverage, easy management, and low cost, and with the development of technology becoming more mature, small base stations are increasingly favored by major operators in the world. Although small cell deployment is expected to significantly improve spectrum efficiency and coverage of next-generation cellular ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/22H04W24/06
CPCH04W16/22H04W24/06
Inventor 韩涛熊思清葛晓虎张靖李强韩宇杰姜海奇刘雄冯雨
Owner HUAZHONG UNIV OF SCI & TECH
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