Logical-Channel BSR Format Selection for XR Data Bursts
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently supporting Extended Reality (XR) services due to high data bursts and power consumption issues, particularly in devices like AR glasses, which require finer granularity in uplink buffer status reporting to optimize power consumption and capacity.
Innovation Solution
The method involves determining the format of buffer status reports (BSR) based on the number of logical channel groups and the availability of an additional buffer size table, allowing for more accurate reporting through Short BSR2 and Long BSR2 formats, enhancing uplink scheduling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If buffer status reporting uses traditional formats (Short BSR/Long BSR), then the reporting mechanism is simple and backward compatible, but the granularity is insufficient to support XR services with high data bursts
Solution Approach 1:
The patent segments the buffer status reporting mechanism into multiple format types (Short BSR, Long BSR, and new formats with additional buffer size tables) to provide different levels of granularity. The additional buffer size table is divided into multiple tables (first, second, third buffer size tables) that can be selectively applied based on service requirements, enabling fine-grained control for XR services while maintaining simplicity for other services.
Solution Approach 2:
The patent implements dynamic selection of buffer status report formats based on service type and data burst characteristics. The system can switch between different reporting formats (first format, second format, third format) depending on whether additional buffer size tables are allowed and based on the specific service requirements, allowing the system to adapt to varying complexity needs.
2Reliability
If the terminal always uses detailed buffer status reporting formats, then XR service support is optimized, but power consumption increases due to more frequent and detailed uplink transmissions
Solution Approach 1:
The patent applies local quality by providing different buffer status reporting detail levels for different logical channel groups and different service types. Instead of uniformly detailed reporting for all data, the system uses additional buffer size tables selectively for XR services that require it, while using simpler reporting for other services, thereby optimizing power consumption locally where needed.
Solution Approach 2:
The patent changes the reporting parameters dynamically by introducing additional buffer size tables with different resolution levels. The system can switch between different buffer size tables (first, second, third tables) based on service requirements, allowing the terminal to adjust the level of detail in buffer status reporting to match the actual needs of XR services versus other services.
3Adaptability or versatility
If multiple buffer size tables are introduced for different service types, then service-specific optimization is achieved, but the system complexity and configuration overhead increase
Solution Approach 1:
The patent implements universality by designing the buffer size tables to serve multiple purposes. The additional buffer size tables can be configured and used for different service types (XR services, voice services, etc.), and the same table structure can be applied across different logical channel groups. This multi-functional design allows the system to optimize for multiple service types using a unified approach rather than requiring separate configurations for each service.
Data Source
AI summary
A method and apparatus to improve uplink scheduling efficiency is provided. This disclosure provides methods and apparatus to selecting format for a triggered BSR with consideration on RRC configuration and amount of data to be reported and number of logical channel groups to be reported. With the method, more accurate reporting is enabled when certain conditions are fulfilled.