Dynamic Wireless Access Node Registration Window
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Solution Overview
Problem
Wireless communication devices are often denied access through wireless access nodes due to fixed registration periods, leading to resource wastage when registration attempts occur outside these predefined times, and overlapping access probes cause noise interference, making it difficult for nodes to detect and respond to registration attempts.
Innovation Solution
A wireless access node monitors its channel for registration attempts during a first time period, detects noise levels, and adjusts the registration period based on noise thresholds to accommodate additional attempts, optimizing channel usage and reducing noise interference by adjusting access cycle durations and dormancy timers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed registration periods are used, then protocol simplicity is maintained, but access reliability deteriorates when devices attempt registration outside predefined periods
Solution Approach 1:
The patent applies dynamics by making the registration window size variable rather than fixed. The access node dynamically adjusts the registration window duration based on detected noise levels and registration attempt patterns. When noise is detected indicating failed registrations, the window is extended to accommodate retry attempts, thereby maintaining protocol simplicity while improving access reliability.
Solution Approach 2:
The patent changes the time parameter of the registration window from a fixed value to a variable value that adapts based on channel conditions. By monitoring noise levels and adjusting the registration window duration accordingly, the system maintains simplicity in protocol structure while improving reliability of access under varying conditions.
2Device complexity
If fixed registration periods are used, then resource allocation is simplified, but resource waste increases due to repeated failed registration attempts
Solution Approach 1:
The patent implements feedback by having the access node monitor the channel for noise levels resulting from failed registration attempts. When excessive noise is detected, the system feeds back this information to adjust the registration window size, thereby preventing further wasted registration attempts and optimizing resource utilization while keeping allocation relatively simple.
Solution Approach 2:
The registration window duration is made dynamic, expanding when failed attempts are detected and contracting when conditions improve. This dynamic adjustment prevents resource waste from repeated failures while maintaining relatively simple resource allocation mechanisms.
3Reliability
If registration window size is increased to accommodate retry attempts, then access reliability improves, but channel noise increases due to overlapping access probes
Solution Approach 1:
The patent applies dynamics by adjusting the registration window size based on detected noise levels. When noise is detected, the window is temporarily extended to allow clean retry attempts, but the extension is controlled and adaptive, preventing excessive overlapping that would generate harmful noise while maintaining access reliability.
Solution Approach 2:
The system uses feedback from noise detection to control the registration window size. When noise exceeds a threshold, the window is extended to accommodate retries; when noise is low, the window returns to normal size. This feedback mechanism balances reliability improvement with noise control.
4Reliability
If the access node monitors for extended periods to detect failed attempts, then access reliability improves, but time loss increases due to prolonged monitoring
Solution Approach 1:
The patent uses feedback-based monitoring where the access node listens for noise indicators of failed registrations. Rather than continuously monitoring for extended fixed periods, the system monitors until noise indicating failure is detected or a reasonable threshold is met, then immediately adjusts the registration window. This reduces unnecessary monitoring time while maintaining reliability.
Solution Approach 2:
The system performs partial monitoring - enough to detect failed attempts through noise detection, but not excessive continuous monitoring. The monitoring is sufficient to trigger the necessary window adjustment without prolonged idle listening that would waste time.
Data Source
AI summary
What is disclosed is a method of operating a wireless access node, where the wireless access node provides a wireless communication service to wireless communication devices after registration. The method includes monitoring a wireless access channel of the wireless access node for registration attempts of the wireless communication devices during a first time period and detecting a threshold amount of noise occurring on the wireless access channel after the first time period. The method also includes, in response to detecting the threshold amount of noise, processing the first time period and data related to the threshold amount of noise to determine a second time period. The method also includes, in response to determining the second time period, monitoring the access channel for additional registration attempts of the wireless communication devices during the second time period.