AloT Device Uplink Mapping for Orthogonal Resource Allocation
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Solution Overview
Problem
Existing communication systems face challenges in allocating orthogonal resources for uplink transmissions from multiple Ambient Internet of Things (AloT) devices, as the number and locations of these devices are a-priori unknown, leading to potential collisions and demodulation failures.
Innovation Solution
AloT devices determine their uplink resources based on a configuration provided in a downlink transmission, using their identity and the activator's identity, ensuring orthogonal resource allocation through a resource mapping mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual resource assignments are provided to each AloT device, then resource allocation reliability is improved, but system complexity and cost increase
Solution Approach 1:
The patent applies the copying principle by providing a template resource mapping configuration that can be copied and applied by multiple AloT devices. Instead of individually assigning resources to each device, the network provides a standardized configuration template that devices can independently apply based on their identity and the activator's identity, thereby reducing system complexity while maintaining reliable resource allocation
Solution Approach 2:
The patent utilizes parameter changes by deriving specific resource assignments from general configuration parameters. The resource mapping configuration includes parameters such as time resources, frequency resources, and sequence resources that are dynamically determined based on device identity and activator identity, allowing flexible resource allocation without increasing system complexity
2Object-generated harmful factors
If orthogonal resources are allocated to multiple AloT devices, then resource conflict is avoided, but the complexity of resource management increases
Solution Approach 1:
The patent implements self-service by enabling AloT devices to autonomously determine their own orthogonal resources based on the provided configuration template and their unique identities. Each device independently calculates its time resource, frequency resource, and sequence resource without requiring complex centralized resource management, thereby avoiding resource conflicts while simplifying resource management
Solution Approach 2:
The patent applies segmentation by dividing the resource allocation process into distinct components: time resources, frequency resources, and sequence resources. Each component is independently configured and managed, allowing orthogonal resource allocation across multiple devices without creating complex interdependencies that would increase management complexity
Data Source
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AI summary
There is provided an ambient internet of things, AloT, device comprising means for obtaining an identity of the AloT device, receiving a downlink transmission from at least one activator apparatus, wherein the downlink transmission comprises a configuration of a resource mapping, wherein the configuration of the resource mapping is for uplink transmission from the AloT device, determining a resource for uplink transmission based, at least in part, on the configuration of the resource mapping and the identity of the AloT device and performing uplink transmission, in response to the downlink transmission, using the determined resource for the uplink transmission.