Master eNB Centralized Control for SCG Bearer Activity Monitoring
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Solution Overview
Problem
In dual connectivity scenarios, especially with SCG bearers, unnecessary operations occur due to distributed control between Master eNB and Secondary eNB, leading to inefficient monitoring and resource management, such as unnecessary release and re-addition of Secondary eNBs.
Innovation Solution
Implementing a communication processing unit in the Master eNB to request and acquire activity-related information from the Secondary eNB, allowing centralized control over UE activity monitoring and reducing unnecessary operations by concentrating control on the Master eNB.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If control is distributed between Master eNB and Secondary eNB in SCG bearer scenarios, then the Secondary eNB can independently monitor UE activity, but unnecessary operations occur such as unnecessary release and re-addition of Secondary eNB
Solution Approach 1:
The patent merges the control functions by having the Secondary eNB report UE activity information to the Master eNB, which then centrally determines release decisions. This combines the independent monitoring capability of the Secondary eNB with the centralized control of the Master eNB, eliminating unnecessary release operations while maintaining operational independence where beneficial.
2Measurement precision
If the Secondary eNB monitors UE activity independently, then it can detect user inactivity, but this leads to unnecessary release procedures and re-addition operations
Solution Approach 1:
The patent introduces the Master eNB as an intermediary that receives activity information from the Secondary eNB and makes the final release decision. The Secondary eNB continues to monitor and detect activity accurately, but the Master eNB mediates the release decision by considering overall system state, preventing unnecessary releases and reducing procedure time.
3Adaptability or versatility
If the Master eNB has centralized control over UE activity, then it can make coordinated decisions, but it cannot directly monitor UE activity in SCG bearers
Solution Approach 1:
The patent establishes a feedback mechanism where the Secondary eNB monitors UE activity and reports this information to the Master eNB. The Master eNB uses this feedback to make informed centralized control decisions regarding UE activity and Secondary eNB release, combining direct monitoring capability with centralized adaptability.
4Loss of energy
If the Secondary eNB is released due to perceived inactivity, then resource utilization improves, but unnecessary release operations increase operational overhead
Solution Approach 1:
The Secondary eNB continues to monitor UE activity and maintain connections, effectively serving itself by detecting when UE becomes truly inactive. The Master eNB receives this self-reported information and makes coordinated release decisions, reducing unnecessary releases while maintaining resource efficiency through the Secondary eNB's autonomous monitoring capability.
Data Source
AI summary
An apparatus and a method which make it possible to suppress occurrence of an unnecessary operation in a case of an SCG bearer. The apparatus includes: a communication processing unit configured to communicate with a terminal apparatus over a Master Cell Group (MCG) bearer for dual connectivity of the terminal apparatus; a request unit configured to request a secondary base station, which communicates with the terminal apparatus over a Secondary Cell Group (SCG) bearer for the dual connectivity, to report activity-related information related to an activity of the terminal apparatus in an SCG of the secondary base station; and an information acquisition unit configured to acquire the activity-related information reported by the secondary base station.