Dynamic Buffer Status Granularity Control in Mobile Networks
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Solution Overview
Problem
Conventional systems for determining the granularity level of buffer status reports in mobile communication systems cannot dynamically adjust to real-time conditions, leading to suboptimal bandwidth allocation and reduced decision-making accuracy for base stations.
Innovation Solution
A method and system where the base station dynamically determines and communicates a granularity level for buffer status reports to user equipment based on system conditions such as available resources, reporting overheads, and user satisfaction, allowing for adaptive reporting granularity to optimize scheduling grants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If buffer status reports are consolidated for all radio bearers into a single report, then reporting overhead is reduced, but decision-making accuracy for bandwidth allocation deteriorates
Solution Approach 1:
The patent segments buffer status reporting by creating multiple granularity levels (Level 0: all RBs consolidated, Level 1: RB groups consolidated, Level 2: individual RBs reported separately). This segmentation allows the system to choose appropriate reporting detail based on traffic conditions, resolving the contradiction between overhead reduction and decision-making accuracy.
Solution Approach 2:
The patent implements dynamic granularity level adjustment where the base station determines and signals the appropriate granularity level based on real-time system conditions (available resources, traffic load, user satisfaction). This dynamic adaptation allows the system to optimize between overhead and accuracy depending on current operational context.
2Measurement precision
If buffer status reports are sent for each individual radio bearer, then decision-making accuracy is improved, but reporting overhead increases
Solution Approach 1:
The patent changes the granularity level parameter dynamically based on system conditions. When traffic load is high or resources are abundant, higher granularity (more detailed reporting) is used. When resources are constrained, lower granularity (consolidated reporting) is applied, thus adapting the reporting overhead to current system needs.
Solution Approach 2:
The patent applies partial reporting by selecting which radio bearers require detailed reporting based on their priority, traffic type, and current buffer status. Not all RBs need equally detailed reporting at all times, so the system applies reporting effort selectively rather than uniformly to all bearers.
3Device complexity
If predetermined schemes are used for determining granularity level grouping, then device complexity is reduced, but adaptability to real-time conditions deteriorates
Solution Approach 1:
The patent implements feedback mechanisms where the base station monitors system conditions (available resources, user satisfaction with scheduling grants) and adjusts the granularity level accordingly. This feedback loop enables automatic adaptation to real-time conditions without requiring complex manual configuration or predetermined rigid schemes.
Solution Approach 2:
The system performs self-adjustment of granularity levels based on monitored conditions. The base station automatically determines appropriate granularity levels and signals them to UEs, eliminating the need for external configuration or complex predetermined schemes while maintaining adaptability to changing conditions.
Data Source
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AI summary
A method for controlling communication overhead from a user equipment to a base station. The base station determines a granularity level of an amount of information about a buffer status of a user equipment buffer. The base station makes the determination based on at least one variable parameter. The determined granularity level is sent to the user equipment, and received thereby. The buffer status is sent to the base station from the user equipment in accordance with the determined granularity level.