Scheduling Request Configuration for Multi-Service 5G Uplink
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Solution Overview
Problem
In the 5G mobile communication system, the existing scheduling request procedures are inadequate for handling multiple services with different priority levels and resource configurations, leading to inefficient uplink resource allocation and potential missed opportunities for data transmission due to complex conditions for initiating buffer status reports.
Innovation Solution
A method is introduced where a user equipment (UE) receives information on the mapping relation between scheduling request configurations and logical channels, along with conditions for initiating regular buffer status reports, allowing it to compare priorities and transmit scheduling requests based on specific configurations, timers, and counters to optimize SR transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple SR configurations are applied for different services, then service-specific resource allocation is improved, but device complexity increases
Solution Approach 1:
The patent segments SR configurations into service-specific groups, where each service (eMBB, URLLC, eMTC) has its own SR configuration parameters including priority levels, resource pools, and transmission timing. This segmentation allows the UE to manage multiple services independently while maintaining overall system coordination through the base station.
Solution Approach 2:
The patent implements dynamic SR configuration where the base station can adjust SR parameters (priority, resource allocation, timing) based on current network conditions and service requirements. The UE dynamically selects which SR configuration to use based on the service type and current buffer status, enabling flexible adaptation to changing conditions.
2Measurement precision
If complex conditions are applied for initiating BSR transmission, then resource allocation accuracy is improved, but productivity decreases
Solution Approach 1:
The patent applies different BSR triggering conditions and priority rules for different service types and logical channels. High-priority services like URLLC have more aggressive BSR triggering conditions compared to best-effort services, ensuring that resource allocation accuracy is optimized locally for each service type rather than using a one-size-fits-all approach.
Solution Approach 2:
The patent pre-configures BSR triggering conditions and priority levels for different service types before actual data transmission occurs. The UE has predetermined rules for when to trigger BSR based on buffer status thresholds and service priorities, eliminating the need for complex real-time decisions and improving transmission efficiency.
3Productivity
If SR transmission is optimized based on priority and resource availability, then data transmission efficiency is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic SR transmission control where the UE adjusts SR behavior based on real-time conditions including service priority, current resource availability, and buffer status. The UE dynamically selects transmission timing, resource pools, and priority levels based on pre-configured rules and current network feedback, optimizing efficiency without requiring complex real-time algorithms.
Data Source
AI summary
The present disclosure relates to a communication scheme for the convergence of a 5G communication system for supporting a higher data transfer rate after the 4G system and the IoT technology and a system thereof. A method for performing a scheduling request (SR) is provided. The method performed by a user equipment (UE) comprises receiving, from a base station, first information on a mapping relation between an SR configuration and a logical channel (LCH), receiving, from the base station, second information on a condition for initiating a regular buffer status report (BSR) transmission procedure regardless of priority, and transmitting, to the base station, the SR based on the first information and the second information.