Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and device for processing radio link failure in the process of switching user terminal

A wireless link failure, user terminal technology, applied in the field of wireless link failure processing, can solve the problems of unresolved, unsuccessful reconstruction, etc., to achieve the effect of high service quality, simple and practical implementation, and improved access experience

Inactive Publication Date: 2010-10-27
ZTE CORP
View PDF4 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If at this time the radio link control (RLC, Radio Link Control) layer indicates that the maximum number of retransmissions causes the radio link to fail, according to the existing protocol, the process of reestablishing the radio connection will be triggered immediately. However, since the UE has configured a new The parameters of the target cell, the UE will carry the RNTI of the target cell, security configuration information and other parameters in the wireless connection re-establishment request. After the network side receives the wireless connection re-establishment signaling, it will cause the parameters carried in the wireless The cell parameters in the cell cause the reconstruction to fail
For this problem, there is no solution in the existing protocol

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for processing radio link failure in the process of switching user terminal
  • Method and device for processing radio link failure in the process of switching user terminal
  • Method and device for processing radio link failure in the process of switching user terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] In the LTE system, base station 1 and base station 2 are connected through an X2 interface. UE is located in cell 1 under the jurisdiction of base station 1 and is in a connected state. Base station 1 configures measurement configuration information for the UE. The cell 2, the cell 3, and the cell 1 under the jurisdiction of the base station 2 are neighbor cells. In this example, cell 1 is the source cell.

[0068] At a certain moment, UE detects that the signal quality of cell 2 is better than that of cell 1 according to its own measurement configuration, and UE sends a measurement report that the signal quality of cell 2 is better than that of cell 1 to base station 1, and base station 1 receives After receiving the measurement report, a handover decision is made, and cell 2 is used as the target cell for handover. image 3 It is a flow chart of Embodiment 1 of the method for processing radio link failure during UE handover in the present invention, as shown in ima...

Embodiment 2

[0076] In the LTE system, the UE is located in the cell 1 managed by the base station 1 and is in a connected state, and the base station 1 configures measurement configurations for the UE. Cell 2, cell 3, and cell 1 under the jurisdiction of base station 1 are neighbors. In this example, cell 1 is the source cell.

[0077] At a certain moment, UE detects that the signal quality of cell 2 is better than that of cell 1 according to its own measurement configuration, and UE sends a measurement report that the signal quality of cell 2 is better than that of cell 1 to base station 1, and base station 1 receives After receiving the measurement report, a handover decision is made, and cell 2 is used as the target cell for handover. Since cell 2 and cell 1 both belong to base station 1, the handover process of the UE to the target cell is as follows: base station 1 allocates radio resources, C-RNTI, and security configuration for the UE in the target cell; base station 1 sends hando...

Embodiment 3

[0080] In the LTE system, base station 1 and base station 2 are connected through the X2 interface. UE is located in cell 1 under the jurisdiction of base station 1 and is in a connected state. Base station 1 assigns radio network temporary identifier (C-RNTI1) and measurement configuration information to UE . The cell 2, the cell 3, and the cell 1 under the jurisdiction of the base station 2 are neighbor cells. In this example, cell 1 is the source cell.

[0081] At a certain moment, UE detects that the signal quality of cell 2 is better than that of cell 1 according to its own measurement configuration, and UE sends a measurement report that the signal quality of cell 2 is better than that of cell 1 to base station 1, and base station 1 receives After receiving the measurement report, a handover decision is made, and cell 2 is used as the target cell for handover. Figure 4 It is a flow chart of Embodiment 3 of the method for processing radio link failure during UE handove...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for processing a radio link failure in the process of switching a user terminal, which comprises that: after receiving a switching signaling and before switching to a target cell, the user terminal determines the current radio link failure, does not trigger radio connection reconstruction but directly triggers Radio Link Control RLC layer reconstruction, and synchronizes and switches to the target cell; or after receiving a switching signaling and before switching to a target cell, the user terminal detects the current radio link failure, restores parameter configuration in a source cell and triggers radio connection reconstruction; or after receiving a switching signaling, the user terminal stops data transmission with a source cell, extracts parameters allocated by a target cell for the user terminal from the switching signaling, configures the parameters, and synchronizes to the target cell. The invention also discloses a device for implementing the method. The method and the device promote access experience of users; and the method is simple and practical.

Description

technical field [0001] The present invention relates to a wireless link failure processing technology, in particular to a processing method and device for dealing with wireless link failure when a user terminal switches. Background technique [0002] With the development of flat network architecture and the emergence of various high-speed broadband mobile access methods, the evolved wireless communication system can provide higher transmission rates, shorter transmission delays, and support third-generation mobile communications Mobility between internal access systems of the partnership project (3GPP, The 3rd Generation Partnership Project), and mobility between 3GPP access systems and non-3GPP access systems, etc., have prompted the mobile communication system to propose a next-generation architecture idea. [0003] figure 1 Schematic diagram of the next-generation network architecture evolved for the long-term evolution system / system architecture, such as figure 1 As s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/14H04W76/02
Inventor 邓云黄亚达杜忠达
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com