Spectrum Sharing Between 5G and 6G via Reused SSB Resources
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently coexisting and sharing spectrum resources between different cellular technologies, such as 5G and 6G, leading to inefficient resource use and increased configuration overhead.
Innovation Solution
The implementation of reuse schemes that allow for the sharing of synchronization signal broadcast (SSB) resources between 5G and 6G wireless networks, enabling coexistence and reducing configuration overhead by reusing SSB resources and demodulation reference signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate configurations are used for each cellular technology (5G and 6G), then each technology can be optimized independently, but configuration overhead and resource utilization inefficiency increase
Solution Approach 1:
The patent applies universality by designing a unified configuration framework that serves multiple cellular technologies (5G and 6G) simultaneously. The synchronization signal broadcast resources and demodulation reference signals are configured to be reusable across different technologies, allowing a single configuration set to support both 5G and 6G operations without requiring separate dedicated configurations for each technology.
Solution Approach 2:
The patent merges the configuration requirements of 5G and 6G networks by combining their synchronization signal broadcast resources and demodulation reference signals into a shared resource pool. This merging approach allows both technologies to coexist in the same frequency spectrum while using common configuration parameters, thereby reducing overall configuration overhead and improving resource utilization efficiency.
2Productivity
If spectrum resources are shared between 5G and 6G networks, then resource utilization efficiency improves, but coexistence challenges and interference increase
Solution Approach 1:
The patent applies segmentation by dividing the shared spectrum resources into distinct time-frequency slots for different cellular technologies. Synchronization signal broadcast resources and demodulation reference signals are allocated in specific time intervals and frequency ranges, allowing 5G and 6G networks to share the spectrum without causing mutual interference. This temporal and spectral segmentation enables efficient resource utilization while maintaining signal integrity for each technology.
Solution Approach 2:
The patent introduces intermediary mechanisms in the form of guard bands and synchronization signal sequences that act as mediators between 5G and 6G signals. These intermediaries prevent direct interference between the two technologies while allowing them to coexist in the shared spectrum. The demodulation reference signals serve as intermediaries that enable proper signal separation and reduction of harmful interference effects.
3Device complexity
If SSB resources are reused for both 5G and 6G, then configuration overhead is reduced, but signal detection and measurement complexity increases
Solution Approach 1:
The patent applies local quality by assigning different characteristics to SSB resources based on their specific time-frequency locations and associated technologies. Each SSB resource element has unique identification parameters and detection requirements tailored to its specific context within the shared spectrum. This localized differentiation allows the system to maintain simple overall configuration while providing precise detection and measurement capabilities for each specific signal instance.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, via a set of synchronization channel resources, a synchronization message from a network entity, wherein the set of synchronization channel resources and a first subset of broadcast channel resources are both associated with a first cellular technology. The UE may receive, via a second subset of broadcast channel resources and according to the synchronization message, a broadcast message from the network entity, the second subset of broadcast channel resources associated with a second cellular technology that is different from the first cellular technology. The UE may communicate with the network entity using the first cellular technology, the second cellular technology, or both, in accordance with the synchronization message and the broadcast message.