Radio Resource Scheduling with Burst End Time Parameters
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Solution Overview
Problem
Current 5G systems face inefficiencies in managing radio resources for Time Sensitive Communication (TSC) traffic due to the lack of precise information on Burst End Time (BET), leading to constrained resource allocation and reduced efficiency in meeting Quality of Service (QoS) requirements.
Innovation Solution
The introduction of Burst Arrival Time (BAT) and Burst End Time (BET) parameters allows for more accurate scheduling of radio resources, enabling the gNB to allocate resources over a greater time interval while ensuring QoS attributes are met, by determining these values for the first burst and subsequent bursts using burst period information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the gNB uses only Burst Arrival Time (BAT) to allocate radio resources, then resource allocation is simplified, but the time interval for resource allocation is constrained and efficiency is reduced
Solution Approach 1:
The patent introduces a new parameter (Burst End Time or BET) to complement the existing BAT parameter. By changing the parameter set from single-parameter (BAT only) to multi-parameter (BAT and BET), the system expands the time interval knowledge from partial (arrival only) to complete (arrival and end), thereby improving resource allocation efficiency without excessive complexity increase.
2Device complexity
If the gNB allocates radio resources with limited time interval knowledge, then scheduling is simpler, but QoS requirements such as Packet Delay Budget cannot be reliably met
Solution Approach 1:
The patent implements a feedback mechanism where the gNB receives BET information from the network node, which is calculated based on traffic flow characteristics and QoS requirements. This feedback loop enables the gNB to adjust its resource allocation decisions to ensure QoS compliance, transforming an open-loop simple scheduler into a closed-loop reliable scheduler.
3Measurement precision
If the gNB waits for complete burst information before allocating resources, then resource allocation accuracy improves, but resource utilization efficiency decreases due to longer waiting time
Solution Approach 1:
The patent applies preliminary action by having the network node calculate and provide BET information in advance, before the actual burst transmission occurs. This allows the gNB to pre-plan resource allocation with complete time interval knowledge (both BAT and BET), achieving accurate resource allocation without waiting for the burst to complete, thus avoiding resource idle time.
Data Source
AI summary
A method by a radio access network node includes receiving, from a network node, information indicating a burst end time (BET) for a first burst of data traffic within a traffic flow.