Scheduling Request Configuration Switching for 5G Uplink Latency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing scheduling request (SR) mechanisms in 5G wireless communication systems face inefficiencies due to sub-optimal support for multiple numerologies and varying Quality of Service (QoS) requirements, leading to latency issues and inefficient uplink resource allocation.
Innovation Solution
The proposed solution involves dynamically configuring and switching SR resources based on UE feedback, using MAC CE or DCI signaling to adjust SR periodicity, format, and code, allowing for multiple SR configurations to be initially provided, enabling the network to adapt SR settings according to changing data types and QoS requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single SR configuration is used, then device complexity is reduced, but adaptability to different QoS requirements and numerologies deteriorates
Solution Approach 1:
The SR configuration is segmented into multiple independent SR configurations, each associated with different QoS requirements and numerologies. The UE can select and switch between these segmented configurations based on the specific service requirements, thereby achieving adaptability without requiring a single complex all-encompassing configuration.
Solution Approach 2:
The SR configuration is made dynamic through the introduction of SR configuration switching. The UE can switch between different SR configurations based on QoS requirements and numerology changes. This dynamic switching capability allows the system to adapt to varying conditions while maintaining manageable configuration complexity through standardized switching mechanisms.
2Productivity
If SR periodicity is extended, then resource allocation efficiency improves, but latency increases
Solution Approach 1:
The SR periodicity is made dynamic through configuration switching. Different SR configurations can have different periodicities tailored to specific QoS requirements. For time-sensitive services, shorter periodicities can be selected to reduce latency, while for less time-critical services, longer periodicities can be used to improve resource allocation efficiency. This dynamic adjustment resolves the contradiction between efficiency and latency.
Solution Approach 2:
Different SR configurations are assigned with different periodicities according to local quality requirements of specific services. Each SR configuration is optimized for its specific QoS profile, allowing short periodicity for high-latency-sensitive services and long periodicity for efficiency-critical services, thereby resolving the universal contradiction at a localized service level.
3Adaptability or versatility
If multiple SR configurations are supported, then adaptability to different numerologies improves, but device complexity increases
Solution Approach 1:
The SR configuration is segmented into multiple independent configurations, each associated with specific numerologies. This segmentation allows the UE to manage each numerology-specific configuration separately, reducing the complexity of managing all numerologies simultaneously while maintaining full adaptability to different numerology requirements.
Solution Approach 2:
The SR configuration switching mechanism serves as a universal solution that handles multiple numerologies, QoS requirements, and service types through a unified framework. This multi-functional switching mechanism reduces device complexity by providing a single standardized interface for managing diverse requirements, rather than requiring separate management mechanisms for each aspect.
Data Source
AI summary
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). Disclosed is a method of managing a schedule request process in a telecommunication network, comprising the steps of: a user equipment, UE, being provided, by a base station, BS, with a Scheduling Request, SR, configuration, whereby the UE adopts the configuration and at a later time the SR configuration is changed as a result of a message from the BS to the UE.