Wireless link recovery method and device

A wireless link and equipment technology, applied in wireless communication, electrical components, connection management, etc., can solve the problem of long interruption time of data bearing, achieve the effect of reducing recovery time, improving system performance, and reducing interruption time

Inactive Publication Date: 2014-12-17
CHINA ACAD OF TELECOMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention provides a method and device for restoring a wireless link, which are used to solve the problem of reestablishing the wireless link when the wireless l...

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  • Wireless link recovery method and device
  • Wireless link recovery method and device

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Embodiment Construction

[0049] In the embodiment of the present invention, after the MeNB radio link fails, if the SeNB has a serving cell that meets the channel quality condition, the user equipment omits the cell selection process, but selects a serving cell from the serving cells whose channel quality meets the condition to perform RRC Reconstruction reduces the recovery time of the wireless link, thereby reducing the interruption time of data bearing and further improving the system performance.

[0050] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0051] Such as figure 1 As shown, a method for restoring a wireless link in Embodiment 1 of the present invention includes:

[0052] Step 101, after a user equipment connected to multiple network-side devices fails in the radio link with the main network-side device, determine the channel quality of each serving cell in the SCG;

[0053] Step 102, if there is a ser...

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Abstract

An embodiment of the invention relates to the technical field of wireless communication, particularly to a wireless link recovery method and device and solves the conventional problem that under the dual connectivity network architecture, when failure occurs to the wireless link between UE (user equipment) and MeNB (master eNB), during the reconstruction of the wireless link, the break period of a data radio bearer is long. According to the arrangement, when the failure occurs to the wireless link of the MeNB, if serving cells of SeNB (secondary eNB) meet quality requirements of the channel, the UE performs a RRC (radio resource control) reconstruction by selecting one from the serving cells meeting the channel quality requirements rather than select the cell. Thus the wireless link recovery time is shortened, the break period of the data radio bearer is shortened, and the system performance is further improved.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method and equipment for restoring a wireless link. Background technique [0002] Under the traditional network architecture, a UE (user equipment) only has a wireless connection with one base station. When the quality of this link deteriorates and a wireless link fails, the only connection between the UE and the network is lost. Need to find a suitable cell to restore the connection with the network. [0003] In a layered network composed of macro cells and small cells, a UE can have wireless connections with multiple base station nodes at the same time, and pool the wireless resources of multiple base stations to serve user data transmission. This is called a dual connectivity network architecture. [0004] The dual connection architecture means that the UE has wireless links (ie, Uu interface) with two base stations at the same time, and only one base station...

Claims

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Application Information

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IPC IPC(8): H04W76/02H04W36/00
Inventor 王彦张大钧鲍炜
Owner CHINA ACAD OF TELECOMM TECH
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