Temporal Buffer Status Reporting for Low-Latency XR Traffic

The buffer status reporting is segmented into multiple types (first-type BSR for temporal information, second-type BSR for traditional LCG-based reporting). This segmentation allows different reporting mechanisms to handle different service requirements simultaneously, with the first-type BSR specifically addressing low-latency XR services by reporting temporal information for individual logical channels

The patent implements preliminary action by triggering buffer status reports based on temporal information before data packets are discarded. The terminal determines temporal information (such as packet delay budget) in advance and triggers reporting when this temporal information expires or approaches expiration, allowing the network to schedule resources proactively before packet loss occurs

The patent implements dynamic buffer status reporting where the reporting behavior adapts based on service type and temporal information. For XR services with strict latency requirements, the system dynamically triggers first-type BSR reports when temporal information expires. For other services, traditional second-type BSR reports are used. This dynamic approach ensures accurate data volume information is reported only when necessary, reducing unnecessary signaling overhead

The patent applies local quality by differentiating buffer status reporting mechanisms for different logical channels based on their service requirements. Logical channels carrying XR services receive enhanced reporting with temporal information (first-type BSR), while other logical channels use traditional LCG-based reporting (second-type BSR). This localized enhancement ensures accurate reporting for critical services without increasing overhead for all services