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Abnormal protection method of cell reselection failure and terminal

A cell reselection and abnormal protection technology, applied in wireless communication, electrical components, etc., can solve problems such as non-compliance, achieve the effect of ensuring the success rate and improving user experience

Active Publication Date: 2017-01-04
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, based on the existing 3GPP protocol standard configuration, there will be a phenomenon that the value of Qrxlevmin in the broadcast message SIB3 / SIB5 of the serving cell (source cell) is not equal to the value of Qrxlevmin in the broadcast message SIB1 of the neighboring cell. Re-election ping-pong, specifically as follows: cell A configures cell B as a neighboring cell, if the Qrxlevmin in the broadcast message SIB3 of cell A

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  • Abnormal protection method of cell reselection failure and terminal
  • Abnormal protection method of cell reselection failure and terminal
  • Abnormal protection method of cell reselection failure and terminal

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Embodiment Construction

[0032] In order to facilitate the understanding of the technical solution of the present invention, at first the existing cell reselection method is introduced, as follows:

[0033] LTE-related cell reselection, including intra-frequency cell reselection and inter-frequency / different-system cell reselection (including cell reselection within the LTE system and cell reselection between different radio access technologies (RATs)), details as follows:

[0034] (1) High priority different frequency / different system:

[0035] For an inter-frequency / inter-system whose neighbor cell priority is higher than the frequency priority of the current cell, the UE always performs measurement on the high-priority inter-frequency / inter-system; and then reselects when the following two conditions are met at the same time:

[0036] a) The S value of the high-priority inter-frequency / different-system cell is greater than the preset threshold threshX-High, and the duration exceeds Treselection; ...

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Abstract

The invention discloses an abnormal protection method of cell reselection failure. The method comprises the following steps that after residence in a target adjacent region is failed, a terminal carries out adjacent region measurement again; and when the terminal determines that the target adjacent region is measured again, an updated Qrxlevmin value is used to carry out cell reselection operation, wherein the updated Qrxlevmin value is a higher value of a Qrxlevmin value of a source cell and a Qrxlevmin value of the target adjacent region. The invention simultaneously discloses an apparatus and the terminal corresponding to the method.

Description

technical field [0001] The invention relates to cell reselection technology in the field of communication, in particular to a method and terminal for abnormality protection of cell reselection failure. Background technique [0002] At present, the value of Qrxlevmin in the broadcast message SIB3 / SIB5 of the serving cell in the LTE network is the same as the value of Qrxlevmin in the broadcast message SIB1 of the neighbor cell. Configured at the cell level: a cell is required to correspond to a Qrxlevmin, so that different Qrxlevmin can be configured for different cells of the same frequency point in the same frequency network, so that the network can control the resident users in different cells of the same frequency point through this parameter In order to achieve the purpose of load sharing among different cells. [0003] However, based on the existing 3GPP protocol standard configuration, there will be a phenomenon that the value of Qrxlevmin in the broadcast message SIB...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/04
CPCH04W24/04H04W36/08
Inventor 阮航曹蕾马帅
Owner CHINA MOBILE COMM GRP CO LTD