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A mobility management method and device

A management method and technology for a management device are applied in the field of mobility management methods and devices, and can solve problems such as terminal resident failure and poor effectiveness.

Active Publication Date: 2019-10-22
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a method and device for cell selection, which are used to solve the problem that when performing cell selection in current mobility management, the terminal may have ping-pong reselection between two or more cells or may cause the terminal to fail to reside, or The problem of poor effectiveness when performing cell selection in the current serving cell handover decision

Method used

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  • A mobility management method and device
  • A mobility management method and device
  • A mobility management method and device

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Embodiment 1

[0063] In the mobility management of the idle state, the terminal needs to refer to the parameter Qrxlevmin value configured in the cell to determine whether the current cell is a suitable cell for the terminal to camp on. In the current standard definition, the parameter Qrxlevmin value for the cell configuration is frequency specific, so if the terminal only refers to the frequency specific when performing cell selection, it may cause the terminal to repeatedly select between at least two or more cells, If the terminal refers to the signal level value of the cell at the same time, the speed of cell selection will be slow. Based on this, Embodiment 1 of the present invention proposes a mobility management method in an idle state, such as figure 1 The specific processing flow shown is as follows:

[0064] Step 10, the serving cell obtains the cell-specific minimum receiving level offset Cellspecific Qrxlevmin-offset value pre-configured by each neighboring cell.

[0065] In ...

Embodiment 2

[0097]In the mobility management of the connected state, the target cell is determined only based on the signal level value of the current serving cell reported by the terminal, the signal level of the neighboring cell measured by the terminal, and the resources of the neighboring cell. In this method, the target cell selected by the network side cannot fully guarantee that the terminal will normally complete random access and other uplink procedures after accessing, so the effectiveness of cell selection is poor. Based on this, Embodiment 2 of the present invention proposes a Mobility management methods such as Figure 4 As shown, the specific process is as follows:

[0098] Step 21, the terminal obtains the signal level values ​​of each neighboring cell of the serving cell.

[0099] Wherein, the terminal may measure the configured measurement objects to determine the signal level values ​​of each neighboring cell.

[0100] Measurement objects can be configured for each nei...

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Abstract

The invention discloses a mobility management method and device, the method comprising: obtaining the frequency specific Qrxlevmin value of each neighboring cell of a serving cell, the pre-configured Cell specific Qrxlevmin-offset value of each neighboring cell, and the signal level of each neighboring cell value; and for any neighboring cell, calculate the sum value of the frequency specific Qrxlevmin value of the neighboring cell and the Cell specific Qrxlevmin-offset value; and use the cell whose signal level value is greater than the sum value as a candidate target cell for solving When performing cell selection in the current mobility management, the terminal may have ping-pong reselection between two or more cells or may cause terminal access failure, or the problem of poor effectiveness when performing cell selection in the handover decision .

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a mobility management method and device. Background technique [0002] Mobility management can assist a Long Term Evolution (English: Long Term Evolution, abbreviation: LTE) communication system to achieve load balancing, provide better user experience, and improve overall system performance. [0003] For ease of illustration, the cell currently serving the terminal, that is, the cell where the terminal currently camps is called a serving cell, and the cell selected or reselected by the terminal is called a target cell. Mobility management functions are mainly divided into two categories: mobility management in idle state and mobility management in connected state. Among them, the mobility management in the idle state is mainly decided by the terminal based on the static parameters configured by the network, and the mobility management in the connected sta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/24H04W36/30H04W48/20
CPCH04W24/08H04W24/10H04W36/0094H04W36/14H04W36/30H04W36/32H04W36/36H04W48/10H04W48/20H04W36/06H04W36/08
Inventor 徐晓东李秋香秦文丽刘婷婷胡南陈卓
Owner CHINA MOBILE COMM GRP CO LTD
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