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A handover method for mobile-aware cooperative multi-point transmission in heterogeneous ultra-dense networks

An ultra-dense network, multi-point transmission technology, applied in the handover field of mobile-aware coordinated multi-point transmission

Active Publication Date: 2021-09-14
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a mobile-aware cooperative multi-point transmission switching method in a heterogeneous ultra-dense network, so as to solve the shortcomings of existing cooperative multi-point transmission applications in ultra-dense networks

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  • A handover method for mobile-aware cooperative multi-point transmission in heterogeneous ultra-dense networks
  • A handover method for mobile-aware cooperative multi-point transmission in heterogeneous ultra-dense networks
  • A handover method for mobile-aware cooperative multi-point transmission in heterogeneous ultra-dense networks

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0035] The present invention provides a method for switching mobile perception cooperative multipoint transmission in a heterogeneous ultra-dense network. The heterogeneous ultra-dense network of the present invention adopts a two-layer UDN architecture, and the two-layer UDN architecture includes Macro BS for wide coverage and small BS for high bandwidth; according to m and lambda s Two independent uniform Poisson point processes (PPP) are used to deploy macro BSs and small BSs, where BSs located in different levels are heterogeneous in terms of transmission power and deployment density, while BSs located in the same level have the same transmission power. According to the characteristics of PPP, adding two independent homogeneous PPPs is still PPP, so the deployment density of all BSs can be expressed as λ m and lambda s the addition of.

[0036] When ...

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Abstract

The present invention provides a handover method for mobile perception coordinated multi-point transmission in a heterogeneous ultra-dense network, which includes the following steps: Step 1, in all base stations BS connected to the user MD, according to the relationship between the user MD and the base station BS The distance between the user MDs and the estimated residence time of the user MD establish the final cooperative BS set; step 2, in the final cooperative BS set established in step 1, select the trigger time for the user MD to switch the base station BS; this technology also has A balance is achieved between long-stay BSs and current best-performing BSs for cooperative BS set determination; through extensive simulations, it is shown that the performance of the proposed MACH outperforms existing schemes in terms of coverage probability and handover probability.

Description

technical field [0001] The invention belongs to the field of the industrial internet of things, and in particular relates to a handover method of mobile perception coordinated multi-point transmission in a heterogeneous ultra-dense network. Background technique [0002] Ultra-dense networking (UDN) is considered to be one of the most promising network technologies for 5G wireless networks. By densely deploying base stations (BSs) on heterogeneous network layers (i.e., micro base stations, pico base stations, femto base stations, and remote radio heads), UDN provides a large number of flexible mobility for mobile users with high bandwidth and improved spectral efficiency. Access options. In the current wireless network, in the coverage area of ​​the macro base station, the deployment density of various low-power nodes of various wireless transmission technologies has been greatly increased compared with the previous deployment density. Even in the future, the ratio of the n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04W24/02
CPCH04W24/02H04W36/0055Y02D30/70
Inventor 孙文张海宾郭鸿志刘家佳孟祥智王璐
Owner NORTHWESTERN POLYTECHNICAL UNIV
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