Mobile Station Connection Reconfiguration State Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional mobile communication systems experience repeated connection re-establishment processing due to mismatched states in release or addition requests of DRBs and measurement configurations during radio link failures, leading to inefficient communication.
Innovation Solution
A mobile communication method and system that includes a re-establishment processor unit to manage connection states and ignore mismatched requests in RRC Connection Reconfiguration messages, ensuring completion notifications are sent even if requests are not applicable, thereby preventing unnecessary re-establishment processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile station processes all RRC Connection Reconfiguration requests including mismatched DRB release/addition requests, then the configuration state consistency between network and UE is improved, but repeated connection re-establishment processing occurs due to radio link failures
Solution Approach 1:
The mobile station performs preliminary checking of DRB configuration state before processing RRC Connection Reconfiguration requests. By comparing the received DRB release/addition requests with the currently established DRBs, the UE determines in advance whether to process or ignore the requests, preventing subsequent configuration mismatches that would trigger repeated re-establishment procedures
Solution Approach 2:
Instead of processing all reconfiguration requests and then handling failures, the invention inverts the approach by first checking whether requests are applicable based on current DRB state, and only then processing valid requests. This prevents the generation of erroneous completion notifications that cause repeated re-establishment processing
2Productivity
If the mobile station sends RRC Connection Reconfiguration Complete notification regardless of DRB configuration state, then the reconfiguration process efficiency is improved, but configuration state mismatch between network and UE occurs
Solution Approach 1:
The mobile station implements feedback control by checking the actual DRB configuration state before sending the RRC Connection Reconfiguration Complete notification. Only when the DRB configuration is confirmed to be correct does the UE send the completion notification, ensuring that the network and UE maintain consistent configuration states while avoiding unnecessary re-establishment procedures
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A mobile communication method according to the present invention includes the steps of: transmitting, from a mobile station (UE) to a radio base station (eNB), a connection re-establishment request signal to re-establish the connection between the radio base station (eNB) and the mobile station (UE), when the mobile station (UE) detects a failure in the connection; and transmitting, from the mobile station (UE) to the radio base station (eNB), a connection reconfiguration completion signal notifying that processing corresponding to a connection reconfiguration signal is completed, when the mobile station (UE) receives the connection reconfiguration signal from the radio base station (eNB), and when the connection reconfiguration signal contains a release request of a data radio bearer which is not established between the mobile station (UE) and the radio base station (eNB).