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A cell pre-handover method in a 5G system

A pre-handover and cell technology, applied in the field of mobile communications, to achieve the effects of reducing signaling overhead, making weighting results more reasonable, reducing the number of handovers and the failure rate of wireless links

Active Publication Date: 2022-06-03
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional handover method only considers the RSRP value, which will cause a lot of unnecessary handover

Method used

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  • A cell pre-handover method in a 5G system
  • A cell pre-handover method in a 5G system
  • A cell pre-handover method in a 5G system

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Embodiment Construction

[0025] Below in conjunction with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely

[0028] FIG. 2 is a signaling diagram of a cell pre-handover process in a 5G system according to an embodiment of the present invention, as shown in FIG. 2,

[0043] Step 5, determine the target handover cell. Sort the closeness value from largest to smallest, and the cell corresponding to the largest value is

[0046] FIG. 4 shows the effect of the UE average movement rate on the number of handovers. As can be seen from Figure 4, with the present invention adopted

[0050] In the present invention, unless otherwise expressly specified and limited, the terms "installation", "arrangement", "connection", "fixation",

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Abstract

The invention belongs to the technical field of mobile communication, and relates to a cell pre-handover method in a 5G system; the method includes sampling the position of user equipment, reporting the sampled data and cell measurement reports to a control base station; selecting a handover method based on the measurement report Candidate cell list, calculate the three indexes of each candidate cell according to the sampling data and the cell measurement report; use the entropy weight method based on information entropy to calculate the weight of the three indexes, and use the superior and inferior solution distance method to calculate the distance between each candidate cell and the ideal The closeness of the solution is used to determine the target cell; when the predicted residence time of the user equipment in the target cell is greater than the trigger handover time, the handover is performed; when the predicted residence time of the user equipment in the target cell is less than the trigger handover time, the Perform handover and ignore the target cell. The invention combines the improved entropy weight method with the superior and inferior solution distance method to avoid the inconsistency between the entropy value and the weight value level in the traditional entropy weight method, so that the calculated weight is more reasonable.

Description

A cell pre-handover method in a 5G system technical field [0001] The present invention belongs to the field of mobile communication technologies, and in particular relates to a cell pre-handover method in a 5G system. Background technique [0002] Ultra-Dense Network (UDN) is the key to solving the explosive growth of mobile data traffic technology. A large number of small cells (SCs) with small coverage are deployed in the coverage of macro cells (MC) In order to reduce the user equipment (User Equipment, UE) associated with the MC. However, due to the small coverage of SCs, This leads to more frequent handovers and a higher handover failure rate, which affects the stability of the UE handover, and the UE may will be included in the coverage of multiple base stations, the UE will be interfered by the signals of multiple base stations, making the UE’s service Bad experience. The traditional handover process is as follows: 1) The serving cell sends a measurement ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/10H04W36/00H04W36/22H04W36/30
CPCH04W24/10H04W36/0061H04W36/0094H04W36/22H04W36/30Y02D30/70
Inventor 陈发堂杨玲王华华王丹杨黎明郑焕平
Owner CHONGQING UNIV OF POSTS & TELECOMM