Wireless Device SIB Acquisition Failure Handling
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Solution Overview
Problem
In wireless communication, when a user equipment (UE) fails to acquire a System Information Block (SIB) from an LTE cell due to weak coverage, it is barred from reconnecting for an extended period, leading to poor user experience as it is forced to use lower data rate technologies like 3G/2G instead of 4G LTE.
Innovation Solution
The UE detects its location change and calculates the distance from the failure location, clearing the barring timer if it moves beyond a predetermined threshold, allowing it to reconnect to the LTE cell before the waiting period expires, thus avoiding prolonged use of lower data rate services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE starts a barring timer after failing to acquire SIB to prevent repeated connection attempts in weak coverage areas, then the reliability of network connection is improved, but the loss of time increases as the UE cannot reconnect until the timer expires
Solution Approach 1:
The patent applies dynamics by making the barring timer configurable and adjustable based on network conditions and UE mobility patterns. The network can dynamically set the timer value through SIB parameters, allowing shorter timers for mobile UEs and longer timers for stationary UEA, thus optimizing both reliability and time loss adaptively
Solution Approach 2:
The patent changes the parameter of barring timer duration from a fixed value to a configurable parameter that can be adjusted by the network based on cell conditions, UE type, and mobility patterns. This allows the system to optimize the balance between connection reliability and time loss for different scenarios
2Object-affected harmful factors
If the UE is barred from selecting the first cell during the waiting period after SIB acquisition failure, then the harmful factors affecting network performance are reduced, but the productivity decreases as the UE must use lower data rate technologies
Solution Approach 1:
The patent applies local quality by allowing different UEs to have different barring timer durations based on their specific characteristics and network conditions. Mobile UEs can be granted shorter or no barring periods while stationary UEs in consistently weak areas maintain longer barring periods, optimizing both network performance and user productivity locally
Solution Approach 2:
The patent implements partial action by allowing the UE to attempt cell selection before the full waiting period expires under certain conditions, such as when signal quality improves or the UE moves to a different location, thus partially lifting the bar to maintain productivity while still preventing excessive connection attempts
3Stability of the object's composition
If the UE waits for the waiting period to expire before reconnecting to the first cell, then the stability of network connection is improved, but the loss of time increases causing poor user experience
Solution Approach 1:
The patent applies preliminary action by having the UE perform measurements and evaluations during the barring period to determine if reconnection conditions are met before the timer expires. If the UE detects improved signal conditions or has moved to a suitable location, it can prepare and execute reconnection earlier, reducing service restoration time while maintaining stability
Data Source
AI summary
An apparatus and method for improved data speeds for wireless device are discloses. The wireless device locates at a first location within a first cell, and detects a failure to acquire SIB of the first cell. A waiting period is started in response to the failure to prohibit selecting the first cell during the waiting period. After determining that the wireless device has left a vicinity of the first location in the first cell, the wireless device connects to the telecommunication network via the first cell before an expiration of the waiting period. According to the disclosure, the wireless device does not need to wait for the expiration of the waiting period before recom1ecting to the first cell. The wireless device does not need to connect to a lower data rate cell during the waiting period when the first cell is available. The user experience is improved.