BSR Triggering for Low-Latency XR Data Scheduling

Solution Overview

Problem

Existing BSR transmission mechanisms in communication systems, particularly for services with large data volumes like XR services, lead to delayed data transmission scheduling, resulting in significant transmission latency.

Innovation Solution

A method for triggering a first BSR based on a preset service, allowing timely and accurate reporting of buffered data status to the network device, thereby enhancing data transmission scheduling for services like XR.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the existing BSR transmission mechanism is used for services with large data volumes (e.g., XR services), then the data can be transmitted, but the data transmission scheduling is delayed and transmission latency increases significantly

Engineering Contradiction:

Improvedata transmission scheduling timelinessVSAvoidtransmission latency

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by triggering a first BSR before the actual data transmission begins. The terminal device triggers the first BSR based on a preset service type (e.g., XR service) before data packets arrive, allowing the network device to perform scheduling in advance. This eliminates the delay caused by waiting for data to accumulate and be reported after the fact.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent segments the BSR triggering process into different types: first BSR triggered by preset service (for timely scheduling of large data services) and second BSR triggered by actual data arrival (for general data transmission). This segmentation allows each BSR type to serve its specific purpose optimally, with the first BSR ensuring timely scheduling for preset services while the second BSR handling general data transmission needs.

Inventive Principle:

Principle #1Segmentation

2Measurement precision

If the terminal device triggers BSR based on data arrival, then the BSR reporting is accurate, but the scheduling response time is delayed

Engineering Contradiction:

Improvebuffered data status reporting accuracyVSAvoidscheduling response time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent applies preliminary action by triggering a first BSR before the actual data transmission begins. The terminal device triggers the first BSR based on a preset service type (e.g., XR service) before data packets arrive, allowing the network device to perform scheduling in advance. This eliminates the delay caused by waiting for data to accumulate and be reported after the fact.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent uses feedback mechanisms where the network device receives the first BSR trigger information and sends back scheduling decisions. The terminal device then triggers a second BSR after data arrival to provide updated buffer status information. This multi-stage feedback process ensures both timely scheduling initiation and accurate buffer status reporting.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20260025704A1Method for transmitting BSR, terminal device, and network device

Publication Date: 2026.01.22 QUECTEL WIRELESS SOLUTIONS CO LTD

AI summary

The present application provides a method for transmitting BSR, a terminal device, and a network device. One example method includes: triggering a first BSR by a terminal device, wherein the first BSR is triggered based on a preset service.