Base Station Radio Adaptation for LOS-to-NLOS Visibility Changes
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Solution Overview
Problem
Current wireless telecommunication systems face challenges in achieving Ultra-Reliable and Low-Latency Communications (URLLC) due to insufficient reactive link adaptation techniques, which fail to anticipate sudden changes in radio transmission characteristics caused by moving devices and their surroundings, leading to suboptimal resource allocation.
Innovation Solution
Implementing an apparatus with detecting means to capture dated images of the geographical zone, processing means to determine object properties, and control means to adapt radio connections proactively based on these properties, including adapting transmission power, coding rate, and initiating handovers or device-to-device communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reactive link adaptation techniques are used to adapt transmission power based on feedback, then resource consumption is reduced, but reliability is insufficient under sudden LOS to NLOS transitions
Solution Approach 1:
The system performs preliminary actions by capturing dated images of the geographical zone and proactively determining visibility properties of devices before radio connection degradation occurs. This allows the base station to anticipate LOS to NLOS transitions and adapt transmission parameters in advance, rather than reacting after feedback indicates degradation.
Solution Approach 2:
The system uses dated images with timestamps to track the temporal evolution of device visibility and correlates this with handover events. This feedback mechanism enables the system to learn from past transitions and improve proactive adaptation decisions for future LOS to NLOS events.
2Reliability
If a large number of base stations and high transmission power are deployed to ensure URLLC quality, then reliability is improved, but resource consumption increases significantly
Solution Approach 1:
The system dynamically changes transmission parameters (power, coding rate, modulation order) based on the determined visibility properties of devices. By proactively identifying when a device will transition from LOS to NLOS, the system adapts parameters just in time, avoiding the need for consistently high transmission power across all conditions.
Solution Approach 2:
The system implements dynamic adaptation of radio connection parameters based on real-time visibility assessment from dated images. This dynamic approach allows the system to optimize resource allocation by applying high reliability measures only when and where needed, rather than maintaining static high-resource configurations.
3Productivity
If reactive adaptation waits for feedback from recipients, then device complexity is reduced, but productivity decreases due to delayed response to channel changes
Solution Approach 1:
The system introduces an intermediary mechanism using dated images and visibility determination as an intermediate step between the base station and device feedback. This intermediary provides proactive information about channel conditions without requiring complex changes to the devices themselves, maintaining device simplicity while improving system productivity.
Data Source
AI summary
An apparatus (60) for a base station (10) comprising an antenna system (11) for transmitting a radio signal with devices (30) located in a beam (12) associated with said antenna system (11); said apparatus comprising detecting means (20) configured to timely capture a dated image of a geographical zone (22) at least partly covering said beam (12); processing means (61) configured to determine at least an object (50) corresponding to said devices (30) within said image and properties of said objects, including at least one property representing the visibility of said object in said dated image; control means (62) configured to adapt the radio connection serving said device (30), according to said at least one property.