Shared ID Positioning for Ambient IoT Power Reduction
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Solution Overview
Problem
Current communication systems face challenges in efficiently and cost-effectively positioning a large number of ambient IoT devices, particularly in high-density deployments where traditional methods require excessive power and are limited by line-of-sight conditions.
Innovation Solution
The proposed solution involves assigning a group of terminal devices with a limited number of shared identities based on their positions, allowing a target device to determine its location by activating and receiving IDs from nearby tags, thereby minimizing the power required for activation and enabling accurate positioning in both indoor and outdoor environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional positioning methods are used for ambient IoT devices, then positioning accuracy can be achieved, but power consumption increases and line-of-sight conditions are required
Solution Approach 1:
The positioning system segments the device identification process by dividing devices into groups that share common IDs based on their position ranges. Instead of requiring each device to have a unique ID, the system segments the ID space such that multiple devices can share IDs corresponding to their geographic regions, reducing the total number of unique IDs needed and thus reducing activation power requirements.
Solution Approach 2:
The system applies local quality by assigning IDs specifically tailored to local position ranges. Each ID is optimized for a specific geographic area, allowing the system to activate only the subset of devices relevant to the target position. This localized approach reduces the number of devices that need to be activated and listened to, thereby reducing power consumption while maintaining positioning accuracy.
2Measurement precision
If traditional positioning methods are used for ambient IoT devices, then positioning can be performed, but device cost and power consumption remain high
Solution Approach 1:
The system implements universality by creating a positioning methodology that works across diverse ambient IoT devices regardless of their specific type or function. The shared ID approach based on position ranges provides a universal framework that can be applied to any device in the ambient IoT ecosystem, simplifying device design and reducing cost while maintaining positioning capability.
Solution Approach 2:
The system uses copying by allowing multiple devices to share the same ID copy for their respective position ranges. Instead of requiring unique identification for each device, the system copies IDs across devices that occupy similar spatial regions, reducing the complexity of device identification and lowering overall system cost while preserving positioning functionality.
3Loss of information
If unique IDs are assigned to each terminal device, then device identification is precise, but the number of IDs increases and power consumption for activation rises
Solution Approach 1:
The system merges the identification function by combining multiple devices into shared ID groups based on their position ranges. Instead of treating each device as a separate identification entity, the system merges devices that share geographic space under common IDs, reducing the total number of unique identifiers needed and consequently reducing the power required to activate and query devices for positioning purposes.
Data Source
AI summary
Embodiments of the present disclosure relate to a positioning approach. In an aspect, an apparatus obtains identities (IDs) assigned to L terminal devices, wherein the L terminal devices are assigned with K different IDs based on positions of the L terminal devices such that a group of N IDs identify a position range, at least one ID among the K different IDs is assigned to two or more terminal devices among the L terminal devices, and K is less than L; and receives, from N terminal devices among the L terminal devices, N IDs of the N terminal devices, the N IDs and positions of the N terminal devices being for determining a position of a target device, the target device being in the position range identified by the group of the N IDs. The embodiments of the present disclosure can minimize activator power to transmit an activation signal.