Random Access Channel Parameter Adjustment via Failure Reporting
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Solution Overview
Problem
Current random access channel (RACH) prioritization in communication systems does not effectively report on prioritized access procedures, leading to inefficient parameter adjustments and increased congestion, as it lacks mechanisms to dynamically update parameters based on prioritized failure rates and interference levels.
Innovation Solution
An apparatus and method for transmitting reports of random access procedures that indicate whether prioritized parameters are used, allowing for dynamic adjustment of RACH parameters, such as backoff duration and power ramping, to improve access success rates and reduce congestion by tracking failures and interference levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RACH prioritization is implemented without reporting mechanisms, then prioritized access is provided, but parameter adjustment efficiency deteriorates and congestion increases
Solution Approach 1:
The patent implements a feedback mechanism where the first device generates and transmits a report indicating whether prioritized parameters were used in the random access procedure. The second device receives this report and uses it to dynamically adjust RACH parameters such as backoff duration and power ramping, creating a closed-loop system that improves parameter adjustment efficiency while maintaining access success rates.
2Ease of operation
If RACH parameters are adjusted without failure rate tracking, then congestion management is simplified, but access success rate deteriorates
Solution Approach 1:
The system implements feedback by having the first device track and report whether prioritized parameters were used during the random access procedure. This reporting mechanism provides the second device with information about failure rates and interference levels, enabling data-driven parameter adjustments that improve access success rates while maintaining manageable congestion levels.
3Reliability
If prioritized parameters are used without dynamic adjustment, then access priority is maintained, but network performance deteriorates under congestion
Solution Approach 1:
The patent introduces dynamic adjustment of RACH parameters based on reported failure rates and interference levels. The second device modifies parameters such as backoff duration and power ramping dynamically in response to network conditions, allowing prioritized access to be maintained while adapting to congestion levels to preserve overall network performance.
Solution Approach 2:
The system changes physical layer parameters dynamically based on network conditions. Specifically, the second device adjusts RACH parameters including backoff duration and power ramping based on reports from the first device, enabling the system to adapt prioritized access parameters to current network states and maintain performance under varying congestion conditions.
Data Source
Figure 1A~1B
Figure 1C~1D
Figure 2
AI summary
Example embodiments of the present disclosure relate to transmitting reports of random access procedure. According to embodiments of the present disclosure, there is provided a solution for reporting reports of random access procedure. A first device initiates a random access procedure and logs information about whether the random access procedure is prioritized and the number of failed attempts in the random access procedure. The first device sends such information to a second device which updates parameters for prioritized random access procedures. In this way, the parameters can be adjusted dynamically, thereby improving successful rate in accessing the random access channel. Further, congestion on the random access channel can be avoided.