User Equipment Frequency Band Usage Capabilities for 5G and 6G Coexistence
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Solution Overview
Problem
User equipment (UE) experiences interference and signal loss due to overlapping frequencies from different wireless communication networks, such as 5G FR2 and 6G networks operating in the 7-24 GHz frequency range.
Innovation Solution
The UE indicates its frequency band usage capabilities to wireless communication networks, allowing them to configure and schedule the UE to support both FR2 and 7-24 GHz signal carriers without interference. This is achieved by transmitting indications of available frequency sub-ranges and converting signals to non-overlapping frequency sub-ranges within an intermediate frequency range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple wireless networks operate in overlapping frequency ranges, then network coverage and connectivity are improved, but signal interference and loss occur
Solution Approach 1:
The patent segments the frequency spectrum into distinct sub-ranges (first available frequency sub-range and second available frequency sub-range) and assigns different signal carriers to non-overlapping sub-ranges. This segmentation allows multiple networks to coexist by dividing the frequency resource, preventing interference while maintaining broad coverage across both FR2 and 7-24 GHz ranges.
2Reliability
If frequency conversion is implemented to avoid interference, then signal quality is improved, but device complexity increases
Solution Approach 1:
The patent introduces an intermediate frequency range as a mediator between the FR2 and 7-24 GHz frequency ranges. Signals from the second frequency range are converted to this intermediate range, which is designed to not overlap with the first frequency sub-range. This intermediary approach resolves interference while maintaining manageable processing complexity through systematic frequency translation.
3Reliability
If handover techniques are used to switch between networks, then interference is avoided, but latency is introduced
Solution Approach 1:
The patent implements preliminary frequency allocation where the UE indicates its frequency band usage capabilities to the wireless communication networks in advance. The networks then configure and schedule the UE with specific frequency sub-ranges before communication begins. This preliminary configuration eliminates the need for real-time handover decisions, avoiding handover latency while maintaining interference avoidance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the coexistence of FR2 and 7-24 GHz signals in user equipment, preventing interference and allowing simultaneous transmission and reception of signals from both networks without latency penalties associated with handover techniques.
Implementation Method 1
converting signals to non-overlapping frequency sub-ranges within an intermediate frequency range
Data Source
AI summary
User equipment may transmit and receive wireless signals to and from various communication networks. Furthermore, user equipment may indicate usage capabilities to the various wireless communication networks to enable the user equipment to transmit and/or receive wireless signals to and from at least two different communication networks. In particular, the user equipment may indicate usage capabilities of supporting both Frequency Range 2 (FR2) wireless signals of a fifth generation (5G) network and 7-24 gigahertz (GHz) wireless signals of a sixth generation (6G) network in an intermediate frequency range of the user equipment. The communication network(s) may then configure and/or schedule the user equipment based on the usage capabilities to enable the user equipment to simultaneously or non-simultaneously communicate using both the FR2 wireless signals and the 7-24 GHz wireless signals while preventing interference in the intermediate frequency range of the user equipment.