Duty-Cycle Scheduling for IIoT Burst Latency and Resource Waste
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Solution Overview
Problem
Existing mobile telecommunication systems face inefficiencies in handling burst spread and survival time in deterministic Industrial Internet of Things (IIoT) traffic, leading to resource waste and failure to meet stringent latency requirements.
Innovation Solution
Implementing duty-cycle based configured grant/semi-persistent scheduling (CG/SPS) with active and inactive timers to adjust scheduling resources dynamically, allowing for flexible resource allocation and efficient handling of burst spread and survival time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If configured grant/semi-persistent scheduling is used for deterministic IIoT traffic, then latency requirements are met, but resource waste occurs due to burst spread
Solution Approach 1:
The patent applies dynamics by introducing active and inactive timers that dynamically adjust the status of scheduling resources based on actual traffic conditions. The network entity can transition scheduling resources between active and inactive states, allowing the system to adapt to burst spread while meeting latency requirements and reducing resource waste.
Solution Approach 2:
The patent implements periodic action through duty-cycle based scheduling where scheduling resources are activated in periodic intervals defined by active timers. This allows the system to allocate resources periodically during expected burst periods and deactivate them during idle periods, efficiently handling deterministic IIoT traffic patterns.
2Reliability
If scheduling resources are continuously allocated to handle burst spread, then reliability is improved, but spectral efficiency deteriorates
Solution Approach 1:
The patent uses dynamics to transition scheduling resources between active and inactive states based on actual traffic needs. This dynamic adjustment ensures resources are available when needed for reliable transmission while freeing them during idle periods to improve spectral efficiency and overall system productivity.
Solution Approach 2:
The patent changes the operational parameters of scheduling resources by introducing active and inactive timer values. These parameter changes allow the system to control the duration and frequency of resource activation, balancing reliability requirements with spectral efficiency through configurable timing parameters.
3Productivity
If duty-cycle based configured grant/semi-persistent scheduling is implemented, then resource efficiency is enhanced, but device complexity increases
Solution Approach 1:
The patent implements self-service through autonomous timer-based control where the network entity automatically manages the activation and deactivation of scheduling resources based on pre-configured active and inactive timers. This self-service mechanism enhances resource efficiency without requiring continuous manual intervention or complex real-time decision-making systems.
Data Source
AI summary
A method and apparatus may include determining, by a network entity, at least one interval of at least one scheduling resource during which the at least one scheduling resource is in at least one of a first status or a second status. The method may further include transmitting, by the network entity, information associated with the at least one interval of at least one scheduling resource to at least one user equipment. The at least one interval may occur periodically, and the at least one of scheduling resource may include at least one of configured grant for uplink or semi-persistent scheduling resource for downlink.