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A Pre-Handover Method Based on High-frequency Handover Area Sensing in Heterogeneous Cellular Networks

A technology of heterogeneous cellular network and switching area, applied in wireless communication, electrical components, etc., can solve problems such as waste and data discarding, and achieve the effects of improving switching efficiency, optimizing user experience, good prospects and economic benefits

Active Publication Date: 2018-09-18
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitations of data storage and processing capabilities, a large amount of data in the existing network is discarded without being fully utilized, resulting in a waste

Method used

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  • A Pre-Handover Method Based on High-frequency Handover Area Sensing in Heterogeneous Cellular Networks
  • A Pre-Handover Method Based on High-frequency Handover Area Sensing in Heterogeneous Cellular Networks
  • A Pre-Handover Method Based on High-frequency Handover Area Sensing in Heterogeneous Cellular Networks

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Embodiment Construction

[0029] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Aiming at the existing handover triggering way, the present invention proposes a pre-handover way based on high-frequency handover area perception on the basis of collected spatial geographic location data. According to the RHHF range between the serving base station of the UE and the neighboring cell, combined with the location of the UE, the efficiency of handover execution is improved and the handover delay is reduced (such as figure 1 shown).

[0031] The basic process of pre-handover triggering based on RHHF perception includes the following steps:

[0032] 1) Whether the user enters the RHHF, and the target cell corresponding to the handover area. Once the detection network collects information such as UE location, signal strength, and handover events, it collects statistics on locations where handover occurs frequently, and ...

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Abstract

The invention relates to a pre-switching method based on high-frequency switching area perception in a heterogeneous cellular network, belonging to the technical field of wireless communication. The pre-switching method comprises the following steps that: S1, a network positions a switching position area according to searched various information; S2, a user periodically measures a position and reports a position measurement result to a base station; S3, a source base station detects that the user enters a high-frequency switching area and requests a target base station to reserve resources; S4, the source base station informs UE (User Equipment) to adjust a measurement parameter of a target cell, so that switching is carried out in advance; and S5, once receiving a measurement report message of the user, the source base station sends a switching request to the target base station, so that switching is triggered. By means of the method, by sufficiently utilizing the position perception manner, the switching efficiency in the heterogeneous cellular network is increased in manners of reserving the resources and adjusting the switching parameter; therefore, user experience is optimized; and the pre-switching method disclosed by the invention has good prospect and economic benefits.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a pre-handover method based on high-frequency handover area perception in a heterogeneous cellular network. Background technique [0002] In a wireless communication system, as the user equipment (UE, User Equipment) moves, when the signal quality of the current cell to which the UE is connected deteriorates and cannot meet the communication requirements, the UE needs to be handed over to an adjacent cell with relatively better signal quality. . Traditional cell handover is triggered by reporting a measurement event. The 3GPP protocol defines the entry and exit conditions of measurement events, including events such as A1, A2, A3, A4, A5, B1, and B2. According to the type of cell and the frequency used, the type of measurement event required to trigger handover also has Among them, the A3 event is the most widely used. [0003] In the handover preparation signalin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/08H04W36/16
CPCH04W36/08H04W36/165
Inventor 唐伦陈婉郝昊陈前斌
Owner CHONGQING UNIV OF POSTS & TELECOMM