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Mobility information reporting method and UE

A technology of information reporting and mobility, applied in wireless communication, electrical components, network data management, etc., can solve problems such as omission or misjudgment, and affect the accuracy of parameter adjustment, so as to improve accuracy, optimize records, and reduce omissions or the effect of misjudgment

Active Publication Date: 2022-01-25
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention provides a method for reporting mobility information and UE, which can solve the problem of applying the traditional handover failure recording method to other mobility scenarios, which may cause omission or misjudgment, and affect the accuracy of parameter adjustment after receiving the report from the UE on the network side The problem

Method used

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  • Mobility information reporting method and UE
  • Mobility information reporting method and UE
  • Mobility information reporting method and UE

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0186] An embodiment of the present invention provides a system for reporting mobility information, such as figure 1 As shown, the system includes:

[0187] The user terminal UE101 is configured to perform a cell handover to a target cell indicated by the network side when a cell change or cell re-access is triggered, and / or, when a suitable cell is selected and the suitable cell is in the list of candidate cells, and the suitable cell is selected. Establishing communication with the cell; recording mobility information corresponding to performing cell handover and / or establishing communication with the appropriate cell, and reporting the associated mobility information;

[0188] The network side device 102 is configured to receive the cell handover reported by the UE to the target cell indicated by the network side after the cell change / cell re-access is triggered, and / or select a suitable cell and the suitable cell is in the list of candidate cells , mobility information fo...

example 1

[0303] In this example, after the RLF of the MCG occurs in the UE, the subsequent CHO succeeds / fails.

[0304] When the RLF of the MCG occurs in the UE, the UE will start the T311 timer for cell selection. On the premise that the network allows, if the suitable cell selected by the UE is within the range of the CHO candidate cell, the UE may not initiate re-establishment, but apply the CHO handover configuration parameters saved by the UE for the candidate cell to perform the CHO handover configuration parameters for the candidate cell. Switching process.

[0305] Figure 5 It is a schematic diagram of the entry and binding relationship of the CHO success record corresponding to the MCG RLF applied in the embodiment of the present invention. Two entries in different entry formats will be bound, that is, if the CHO is successful, the UE will record the RLF-related information of the MCG, Information related to the handover success of the CHO candidate cell may also be recorde...

example 2

[0315] In this example, the DAPS handover of the UE fails, and the source cell is RLF, and the UE initiates connection reestablishment.

[0316] When the handover of the UE configured with DAPS fails, it will first determine whether the link on the source side still exists. If no source-side RLF occurs, the UE falls back to the configured connection of the source cell, and sends a Failure information indication to the source cell. If source RLF occurs in the source cell, the UE cannot roll back the connection with the source cell, and the UE may select a suitable cell to initiate CHO handover or reestablishment.

[0317] Since DAPS records are at the UE level, and when the UE leaves the connected state, neither the network nor the UE can save the UE configuration information, if the subsequent UE behaviors of DAPS are not distinguished and recorded, the network will not be able to judge the process of UE failure and real reason.

[0318] When the UE DAPS handover fails and f...

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Abstract

The invention provides a mobility information reporting method and UE, and the method comprises the steps: when triggering cell replacement or cell re-access, executing cell switching to a target cell indicated by a network side, and / or when selecting a proper cell and the proper cell is in a candidate cell list, executing communication with the proper cell; recording mobility information corresponding to execution of cell switching and / or establishment of communication with the appropriate cell, and reporting the associated mobility information. By using the method provided by the invention, the DAPS and / or CHO / CPC mobility success / failure information can be recorded and reported, the omission or misjudgment can be reduced, and the accuracy of parameter adjustment after the network side receives the report can be improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method for reporting mobility information and a UE. Background technique [0002] In the traditional 4G network and 5G R15 version, when the mobile terminal switches from the source cell to the target cell, the mobile terminal usually releases the connection with the source cell before establishing a connection with the target cell, which will cause the mobile terminal to be unable to send data in a short period of time. or receive data. In order to reduce handover interruption time and improve reliability, R16 mobility enhancement standardized two parts: DAPS (Dual Active Protocol Stack, dual active protocol stack) and CHO / CPC (Conditional Handover / Conditional PSCell Change, conditional handover / conditional primary / secondary cell switching). [0003] DAPS handover is an optimization of traditional handover, which can reduce the delay of service interru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/08H04W24/02
CPCH04W8/08H04W24/02H04W36/0079H04W36/185H04W36/362H04W36/305H04W24/10H04W36/00835H04W36/18
Inventor 彦楠
Owner DATANG MOBILE COMM EQUIP CO LTD
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