Conditional Buffer Status Reporting for Granular Wireless QoS
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Solution Overview
Problem
Existing wireless communication systems struggle to efficiently manage data transmission for immersive services and extended reality applications, lacking granular quality of service differentiation and real-time reporting mechanisms for data availability and priority handling.
Innovation Solution
A wireless transmit/receive unit (WTRU) provides granular quality of service differentiation by reporting buffer status and delay status to the network, allowing for dynamic resource allocation based on data availability and priority, including the use of forward error correction and differentiated data volumes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If granular QoS differentiation reporting is implemented for conditional data availability, then data transmission efficiency and resource allocation improve, but device complexity and signaling overhead increase
Solution Approach 1:
The patent segments the reporting mechanism into distinct triggering conditions (e.g., buffer status thresholds, delay status levels, data availability states) that can be independently evaluated. This allows the system to report only when specific conditions are met, reducing overall signaling overhead while maintaining granular QoS differentiation capability.
Solution Approach 2:
The patent dynamically changes reporting parameters based on data conditions - such as adjusting buffer status thresholds, delay status levels, and triggering conditions based on current network state and data characteristics. This enables efficient resource allocation without requiring continuous complex reporting.
2Reliability
If real-time buffer status and delay status reporting is implemented, then network resource allocation improves, but signaling overhead and network traffic increase
Solution Approach 1:
The patent implements periodic reporting based on triggering conditions rather than continuous reporting. The WTRU evaluates buffer status and delay status at specific intervals and only reports when predetermined conditions are satisfied, reducing network traffic while maintaining accurate resource allocation information.
Solution Approach 2:
The patent establishes a feedback mechanism where the network can adjust reporting parameters based on received status reports. This allows the system to optimize the balance between reporting accuracy and signaling overhead dynamically, reducing unnecessary reports while ensuring critical information is transmitted.
3Measurement precision
If conditional data availability reporting with multiple triggering conditions is implemented, then QoS differentiation granularity improves, but processing complexity at WTRU increases
Solution Approach 1:
The patent segments the triggering condition evaluation into distinct, independently checkable conditions (buffer status thresholds, delay status levels, data availability states). Each condition can be evaluated separately using predefined rules, reducing processing complexity while maintaining fine-grained QoS differentiation.
Solution Approach 2:
The patent uses configurable parameters for triggering conditions that can be adjusted based on service requirements. This allows the system to maintain high measurement precision for QoS differentiation while adapting the complexity of condition evaluation to match current network and device capabilities.
Data Source
AI summary
A device (e.g., wireless transmit/receive unit (WTRU)) may report data conditionally available for transmission. A device may determine an association between first data and second data, determine (e.g., based on the association between the first data and the second data) at least one triggering condition (e.g., a transmission availability of the first data) for reporting scheduling information associated with the second data, and report the scheduling information associated with the second data based on the satisfaction of the triggering condition. The scheduling information associated with the second data may be indicated in a buffer status report (BSR), a delay status report (DSR), or a scheduling request (SR). The satisfaction of the triggering condition for reporting the scheduling information associated with the second data may be determined at a medium access control (MAC) layer, a radio link control (RLC) layer, or a packet data convergence protocol (PDCP) layer of the WTRU.