Ambient IoT Random Access with Energy Status Signaling
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Solution Overview
Problem
Existing wireless communication networks face challenges in efficiently scheduling ambient IoT devices with limited power and computation capabilities, leading to transmission failures, collisions, and resource inefficiencies due to unpredictable energy status and processing delays.
Innovation Solution
Ambient IoT devices provide energy and processing status information to the network through D2R transmissions, allowing the network to make informed scheduling decisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the network schedules multiple procedures for ambient IoT devices without considering their energy status, then network productivity is improved, but transmission reliability deteriorates due to devices unable to complete procedures with limited power
Solution Approach 1:
The patent implements a feedback mechanism where ambient IoT devices report their remaining energy status to the network through uplink transmissions. The network uses this feedback information to adjust scheduling decisions, ensuring that devices with sufficient energy are selected for procedures while avoiding over-scheduling energy-constrained devices, thus resolving the contradiction between network productivity and transmission reliability
Solution Approach 2:
The patent applies preliminary action by having devices report their energy status before the network makes scheduling decisions. This advance information allows the network to pre-filter suitable candidates for procedures, preventing scheduling conflicts and ensuring that selected devices can complete their assigned tasks, thereby maintaining both high productivity and reliability
2Device complexity
If ambient IoT devices perform transmissions with limited power, then device complexity is reduced, but energy efficiency deteriorates due to unpredictable energy depletion and transmission failures
Solution Approach 1:
The patent introduces dynamics by enabling devices to dynamically report their remaining energy status and adjust their participation in network procedures based on current conditions. This dynamic adaptation allows the system to optimize energy utilization across the network, ensuring that each device operates within its energy constraints while maximizing overall network efficiency
Solution Approach 2:
The patent changes the parameter of energy status reporting from static to variable, where devices continuously update their remaining energy information. This parameter change enables the network to adapt scheduling strategies based on real-time energy conditions, improving overall energy efficiency without increasing device complexity
3Productivity
If the network triggers procedures for all ambient IoT devices, then network productivity is improved, but resource efficiency deteriorates due to collisions and failed transmissions from energy-constrained devices
Solution Approach 1:
The patent applies partial action by having the network selectively trigger procedures only for devices that report sufficient remaining energy, rather than attempting to schedule all devices. This selective approach reduces resource waste from failed transmissions while maintaining adequate procedure throughput by focusing resources on capable devices
Data Source
AI summary
Methods, systems, and apparatuses are provided for providing information of Ambient Internet of Things (IoT) devices in a wireless communication system, wherein a method of a User Equipment (UE) comprises receiving a first signaling of triggering a random access procedure, triggering the random access procedure in response to receiving the first signaling, performing a first transmission during the random access procedure, and providing, in the first transmission, an energy information indicating at least one of: whether remaining energy of the UE is sufficient or not for one or more following transmissions or receptions after the first transmission, the remaining energy of the UE is insufficient for the one or more following transmissions or receptions after the first transmission, whether the remaining energy of the UE is sufficient or not to complete the random access procedure, and/or the remaining energy of the UE is insufficient to complete the random access procedure.