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Method and device for judging wireless link failure

A technology of wireless link failure and judgment method, applied in the field of wireless link failure judgment method and device, capable of solving problems such as wireless link failure

Inactive Publication Date: 2011-03-30
CHINA ACAD OF TELECOMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no effective solution for how to judge the radio link failure of the UE in the carrier aggregation technology

Method used

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  • Method and device for judging wireless link failure
  • Method and device for judging wireless link failure
  • Method and device for judging wireless link failure

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Embodiment Construction

[0019] The inventor found that if the existing technology is applied to the LTE-A system, it is obviously inappropriate to determine that the radio link of the UE fails as long as the radio link of one component carrier fails, because other component carriers of the UE are still Information can be transmitted normally.

[0020] In the embodiment of the present invention, when the UE detects that all specified component carriers among multiple component carriers have failed radio links, it determines that its own radio links fail, which solves the problem of radio link failure determination in the carrier aggregation technology.

[0021] see figure 1 , the main method flow of wireless link quality determination in this embodiment is as follows:

[0022] Step 101: A user equipment UE configured with multiple component carriers performs radio link quality detection on the component carriers. The UE can detect all configured component carriers, and can also detect specified comp...

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Abstract

The invention discloses a method for judging wireless link failure, which is used for judging wireless link failure when a carrier aggregation technology is adopted. The method for judging wireless link failure comprises the following steps of: configuring user equipment (UE) with multiple member carrier waves to detect the wireless link quality of the member carrier waves; and when the UE discovers the wireless links of the appointed member carrier wave fail in the member carrier waves, determining the self wireless link failure of the UE. The invention also discloses a device for realizing the method.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and a device for judging a wireless link failure. Background technique [0002] Compared with the LTE system, the peak rate of the upgraded Long Term Evolution (LTE Advanced, LTE-A) system is greatly improved. In order to meet this point, the LTE-A system introduces a carrier aggregation (CarrierAggregation, CA) technology. The carrier aggregation technology refers to the uplink and downlink of a cell including multiple component carriers (Component Carrier, CC), instead of only one set of carriers in LTE and previous wireless communication systems. Consecutive or discontinuous multiple component carriers are gathered together to serve user equipment (UE) at the same time when needed, so as to provide the required rate. In order to ensure that the UE can work under each aggregated component carrier, the maximum bandwidth of each component carrier does not exceed 20MHz. [000...

Claims

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Application Information

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IPC IPC(8): H04W24/00H04W88/08H04B7/26
CPCH04W72/08H04W28/04H04L1/20H04W72/54
Inventor 刘佳敏谌丽李国庆
Owner CHINA ACAD OF TELECOMM TECH
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