Terminal Access Control Barring State Management
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Solution Overview
Problem
In communication systems, when a remote terminal performs cell or relay reselection and remains in the same cell or relay, the access control barring state is not effectively managed, leading to potential network congestion.
Innovation Solution
An access control method where a terminal determines whether to stop its access control barring state based on the selection results of cell selection, cell reselection, relay reselection, or relay selection, thereby controlling network access and alleviating congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal continues access attempts in the same cell or relay during access control barring state, then the terminal can maintain connection continuity, but network congestion occurs
Solution Approach 1:
The patent dynamically adjusts the access control barring state based on cell reselection and relay reselection events. When the terminal reselects to a different cell or relay, the access control barring state is cleared, allowing new access attempts. This dynamic adjustment resolves the contradiction by adapting the access control behavior to the current network environment, maintaining connection continuity when appropriate while preventing congestion through state clearing.
Solution Approach 2:
The patent implements a feedback mechanism where the terminal monitors cell reselection and relay reselection outcomes. Based on this feedback, the terminal determines whether to clear or maintain the access control barring state. This feedback loop ensures that access control decisions are based on actual network conditions, resolving the contradiction between maintaining connections and preventing congestion.
2Productivity
If the terminal clears access control barring state after reselection, then network access is improved, but unnecessary access attempts may occur
Solution Approach 1:
The patent applies local quality by differentiating the access control behavior based on the specific reselection outcome. The access control barring state is cleared only when reselection to a different cell or relay occurs, not in all cases. This localized application of state clearing improves network access efficiency when beneficial while avoiding unnecessary access attempts when not needed.
Solution Approach 2:
The patent dynamically determines whether to clear the access control barring state based on the actual reselection outcome. The system adapts its behavior to the specific situation, clearing the state only when appropriate (different cell/relay reselection) and maintaining it when inappropriate (same cell/relay reselection). This dynamic approach optimizes network access efficiency while minimizing unnecessary access attempts and energy consumption.
Data Source
AI summary
An access control method, performed by a terminal, includes: determining that a terminal is in an access control barring state, and determining, according to a selection result of a cell selection, a cell reselection, a relay reselection or a relay selection, whether to stop the access control barring state.