Cellular Radio Access Coexistence Through BWP Segmentation
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Solution Overview
Problem
The repurposing of radio frequency spectrum for newer communication technologies causes interference with older devices, leading to poor performance and potential denial of service due to mutual signal interference between different generations of equipment.
Innovation Solution
Implementing Bandwidth Part (BWP) allocation in 5G networks to transmit only in designated sections of the spectrum, leaving unused frequencies for older generations, and using machine learning to dynamically manage interference by adjusting BWP configuration based on interference levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the radio frequency spectrum is repurposed for newer communication technologies (5G), then the capacity and performance of new networks are improved, but older devices (3G, 4G) experience interference and poor performance
Solution Approach 1:
The radio frequency spectrum is segmented into multiple bandwidth parts (BWPs), where each BWP is allocated to specific radio access technologies. This segmentation allows 5G networks to operate in dedicated frequency segments without interfering with older 3G and 4G devices, resolving the contradiction between improving network capacity and maintaining device reliability.
Solution Approach 2:
The patent introduces a new dimension of spectrum management by implementing BWP configuration that operates independently within the frequency-time domain. This dimensional approach allows dynamic allocation of spectral resources across different time periods and frequency ranges, enabling coexistence of multiple generations of devices without mutual interference.
2Speed
If the entire radio spectrum is allocated to 5G networks, then 5G performance and speed are maximized, but legacy equipment (3G alarms, satellite communications) cannot operate
Solution Approach 1:
The BWP configuration is dynamically adjusted based on real-time spectrum conditions and device requirements. The network can dynamically allocate different BWPs to 5G and legacy devices, allowing 5G to achieve high speeds when spectrum is available while simultaneously ensuring legacy equipment compatibility through adaptive spectrum sharing.
Solution Approach 2:
The BWP mechanism serves multiple functions simultaneously: it enables high-speed 5G data transmission, maintains compatibility with legacy 3G and 4G devices, and provides flexible spectrum allocation. This multi-functionality resolves the contradiction between maximizing 5G speed and ensuring universal device compatibility.
3Adaptability or versatility
If spectrum sharing between different generations of equipment is implemented, then spectrum utilization is improved, but interference between devices increases
Solution Approach 1:
The spectrum is segmented into distinct bandwidth parts with clear boundaries, allowing different generations of equipment to share the overall spectrum while operating in separate, non-interfering segments. This segmentation enables high spectrum utilization through shared access while preventing harmful signal interference through spatial and frequency isolation.
4Reliability
If Bandwidth Part allocation is implemented to avoid interference, then legacy device operation is maintained, but spectrum efficiency decreases
Solution Approach 1:
The BWP allocation is dynamically optimized to maintain reliable legacy device operation while maximizing spectrum efficiency. The system can adjust BWP configurations in real-time, allocating spectrum resources efficiently to both legacy and 5G devices based on current network conditions, traffic demands, and interference levels, thus resolving the contradiction between reliability and productivity.
Data Source
AI summary
Facilitating interference avoidance at coexistence of cellular radio access technologies in same channel is provided herein. Operations of a system include evaluating respective traffic signals received from a group of equipment operating in a defined area. The evaluating comprises determining that the first group of equipment and the second group of equipment utilize an overlapping portion of a radio frequency spectrum. The operations can also include, based on a determination that an interference level of the overlapping portion of the radio frequency spectrum satisfies a defined interference level, reserving, by the system, the overlapping portion of the radio frequency spectrum for usage by the first group of equipment.