STF Resource Allocation for Coexisting 5G and 6G Systems
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Solution Overview
Problem
Coexisting wireless communication systems operating with different Radio Access Technologies (RATs) face significant inter-RAT Radio Frequency interference when sharing the same frequency, time, and spatial domains, particularly in overlapping 5G and 6G base station coverage areas.
Innovation Solution
The allocation of mutually-exclusive portions of Space-Time-Frequency (STF) resources, including spatial and time domain resources, ensures that each RAT operates without interference by assigning distinct subsets of these resources for communication, preventing overlapping radiation patterns and time slots, thereby minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different RATs share the same frequency, time, and spatial domains, then spectrum utilization is improved, but inter-RAT interference increases
Solution Approach 1:
The patent segments the shared frequency spectrum into distinct resource pools for different RATs (5G and 6G). Each RAT is assigned specific time-frequency resources and spatial beams, creating isolated communication channels that prevent interference while maintaining high spectrum utilization. The base station divides available resources into separate allocation sets for each RAT type.
Solution Approach 2:
The patent introduces spatial domain segmentation through beamforming as an additional dimension for resource separation. By assigning different spatial beams and radiation patterns to different RATs, the system creates three-dimensional resource isolation (frequency, time, and space) that eliminates interference while maximizing spectrum usage across multiple dimensions.
2Area of stationary object
If 5G and 6G base stations have overlapping coverage areas, then network coverage is improved, but interference between RATs increases
Solution Approach 1:
The patent segments spatial resources by assigning distinct beam directions and radiation patterns to 5G and 6G communications. Even when coverage areas overlap geographically, the spatial segmentation through beamforming ensures that signals are directed along different spatial paths, preventing interference between RATs while maintaining comprehensive coverage.
Solution Approach 2:
The patent applies local quality by assigning different spatial radiation characteristics to different RATs in different spatial directions. Each RAT is optimized with specific beam patterns tailored to its intended coverage zones, allowing overlapping geographical coverage while maintaining distinct spatial signal qualities that prevent interference.
3Object-affected harmful factors
If mutually-exclusive STF resources are allocated to different RATs, then interference is reduced, but resource utilization efficiency may decrease
Solution Approach 1:
The patent implements dynamic resource allocation where the base station continuously monitors channel conditions, traffic demands, and interference levels to adjust the distribution of time-frequency resources and spatial beams for each RAT. This dynamic adaptation ensures that resources are allocated based on real-time needs, maximizing utilization efficiency while maintaining interference isolation through mutually-exclusive assignments.
Solution Approach 2:
The system employs feedback mechanisms where user equipment reports channel quality, interference levels, and resource usage to the base station. This feedback enables the base station to optimize the allocation of mutually-exclusive resources by adjusting time-frequency assignments and beam configurations based on actual system performance, thereby maintaining high resource utilization while preserving interference reduction benefits.
Data Source
AI summary
The systems, methods, and techniques described in this disclosure allow different wireless systems that operate in accordance with different Radio Access Technologies (RATs) to coexist within a same frequency domain with minimal (if any) inter-RAT interference. Specifically, the described techniques allocate a respective, mutually-exclusive portion of a plurality of Space-Time-Frequency (STF) resources for use in communicating in accordance with each different RAT. For example, mutually-exclusive portions of spatial domain resources, time domain resources, and/or frequency domain resources may be respectively allocated for exclusive use by different RATs. A centralized, third-party controller (120) may perform the allocations, or the allocations may be cooperatively arrived at between systems supporting different RATs, e.g., in a peer-to-peer manner. STF resource allocations may be static and/or dynamic over time, and STF resources may be uniquely identified by respective resource identifiers.