SR/RACH Prioritization for Measurement Gap Concurrency
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Solution Overview
Problem
Current wireless communication networks face challenges in managing concurrency between scheduling requests (SR/RACH) and measurement gaps, leading to disrupted uplink and downlink data transfers, reduced connectivity, and suboptimal user experience due to inadequate solutions for balancing SR/RACH and measurement prioritization.
Innovation Solution
A system and decision engine with prioritization algorithms are implemented to balance SR/RACH and measurement gaps by favoring one over the other based on system status, ensuring neither is entirely ignored, adapting to ongoing conditions such as request counts and mobility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If SR/RACH procedures are prioritized over measurement gaps, then uplink connectivity and data transfer are improved, but measurement accuracy and downlink performance deteriorate
Solution Approach 1:
The patent implements dynamic prioritization where the system adaptively switches between SR/RACH-favored and measurement-favored algorithms based on real-time system conditions such as mobility state, buffer status, and channel quality. This dynamic adjustment resolves the contradiction by allowing the system to optimize for uplink connectivity when needed while preserving measurement accuracy when conditions permit.
Solution Approach 2:
The system changes operational parameters by adjusting the prioritization strategy based on measured conditions. When mobility is high or uplink buffer is full, the system parameter shifts toward SR/RACH prioritization; when conditions are stable, it shifts toward measurement prioritization, thereby resolving the fixed trade-off between the two functions.
2Measurement precision
If measurement gaps are prioritized over SR/RACH procedures, then measurement accuracy and downlink performance are improved, but uplink connectivity and data transfer deteriorate
Solution Approach 1:
The dynamic algorithm selectively prioritizes measurements only when system conditions indicate stability and low uplink demand, otherwise it dynamically switches to favor SR/RACH procedures, resolving the contradiction through condition-based adaptivity.
Solution Approach 2:
The system autonomously monitors its own state (buffer status, mobility, channel conditions) and self-adjusts the prioritization strategy without external intervention, enabling it to resolve the contradiction between measurement needs and uplink performance autonomously based on real-time feedback.
3Productivity
If concurrent SR/RACH and measurement operations are allowed, then system resource utilization is improved, but system reliability and connection stability deteriorate
Solution Approach 1:
The system takes preliminary action by detecting potential concurrency conflicts between SR/RACH and measurement operations before they occur, and preemptively adjusts scheduling to avoid the harmful interaction, thereby preventing reliability degradation while maintaining efficient resource use.
Solution Approach 2:
The patent introduces a decision engine as an intermediary layer that mediates between SR/RACH procedures and measurement operations. This intermediary evaluates system state and makes scheduling decisions that prevent harmful concurrency while maximizing resource utilization, resolving the contradiction between productivity and reliability.
Data Source
AI summary
Described herein are solutions for avoiding concurrency of scheduling request (SR)/random access channel (RACH) and measurement gaps based on system deterministic behavior. A system and decision engine can balance and adapt SR/RACH and measurement gaps. This can prioritizing SR/RACH in some scenarios and measurement gaps in other scenarios. Algorithms are provided for how, and to what extent, SR/RACH is to be favored over measurement gaps, and how, and to what extent, measurement gaps are to be favored over SR/RACH. The system and decision engine can also provide for balancing (or favoring equally) SR/RACH and measurement gaps.