Policy-Based Resource Pool Allocation for Low-Latency IoT Uplinks
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Solution Overview
Problem
Resource allocation in wireless networks for IoT devices is inefficient due to high signaling overhead, sporadic communication patterns, and lack of coordination, leading to resource waste, collisions, and inability to ensure quality of service.
Innovation Solution
Implementing policy-based resource pool allocation, where a base station assigns a pool of resources to UEs along with a resource selection policy, allowing QoS-aware multiplexing and dynamic policy adjustment based on channel conditions and transmission outcomes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional resource allocation methods are used for IoT devices, then individual device connections can be established, but signaling overhead becomes excessively high and resource efficiency deteriorates
Solution Approach 1:
The patent merges multiple individual device resource allocations into a shared resource pool. Instead of allocating resources separately to each IoT device, the base station creates a common pool of time-frequency resources that multiple devices can access simultaneously, reducing the signaling overhead required for individual device management while maintaining connection reliability.
Solution Approach 2:
The resource pool serves multiple functions simultaneously: it provides uplink data transmission, scheduling requests, and random access procedures for numerous IoT devices. This universal resource allocation mechanism eliminates the need for separate dedicated resources for each device type, significantly reducing overall signaling overhead.
2Ease of operation
If multiple IIoT devices connect sporadically without coordination, then device autonomy is maintained, but resource collisions increase and communication reliability decreases
Solution Approach 1:
The base station pre-configures the resource pool parameters and selection policies for IoT devices before actual data transmission occurs. Devices receive advance information about available resources and selection rules, enabling them to autonomously select resources without real-time coordination while avoiding collisions through pre-established protocols.
Solution Approach 2:
The system implements feedback mechanisms where devices report their resource selection outcomes and transmission status to the base station. This feedback enables the base station to adjust resource pool configurations and policies dynamically, improving communication reliability while preserving device autonomy in resource selection.
3Productivity
If dynamic resource allocation is implemented for each device, then resource efficiency improves, but system complexity and coordination overhead increase
Solution Approach 1:
The patent segments resource allocation into two independent layers: resource pool configuration (managed by base station) and resource selection (performed autonomously by devices). This segmentation reduces system complexity by separating centralized control functions from distributed execution, while maintaining high resource efficiency through policy-based allocation.
4Speed
If grant-free transmission is enabled for low-latency applications, then transmission speed improves, but resource collision probability increases
Solution Approach 1:
The patent implements dynamic resource pool configuration where the base station can adjust pool size, resource availability, and selection policies in real-time based on observed collision patterns and network conditions. This dynamic adaptation allows grant-free transmission to maintain high speed while reducing collision probability through responsive resource management.
Data Source
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AI summary
Policy-Based Resource Pool Allocation for Low-Latency IIOT and Other Applications A method for allocating resources in a wireless network by making use of a resource pool and a resource selection policy. A user equipment is configured by a base station to use a pool of resources and a resource selection policy to use to select one or more resources from the pool of resources. The information from the user equipment in the selected resources is provided to the base station. The resource selection policy may comprise a random choice of resource blocks. The resource selection policies may be defined prior to the configuring, and they may be mapped to quality of service requirements. The base station may determine the resource selection policy from the defined resource selection policies.