Configured Grant Transmission Across Non-Contiguous Sub-Bands
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Solution Overview
Problem
Wireless communication systems face challenges in efficiently utilizing resources and managing latency due to interference and congestion, particularly in multimodal traffic scenarios where non-contiguous sub-bands are not utilized effectively, leading to poor performance and resource inefficiency.
Innovation Solution
Implementing a configured grant (CG) configuration that spans non-contiguous sub-bands, allowing simultaneous use of both a first and a second sub-band, even if the first sub-band has low power headroom, to enhance resource utilization efficiency and reduce latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If configured grant transmission uses contiguous sub-bands only, then transmission reliability is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent divides the frequency spectrum into multiple sub-bands and allows the configured grant transmission to span across non-contiguous sub-bands. This segmentation enables the system to utilize scattered frequency resources that would otherwise be wasted, thereby improving resource utilization efficiency while maintaining transmission reliability through diverse frequency paths.
Solution Approach 2:
The patent extends the transmission resource selection from a single contiguous frequency block to multiple non-contiguous sub-bands across the frequency dimension. This dimensional expansion allows the system to access a broader spectrum of resources, improving both resource utilization and transmission reliability through frequency diversity.
2Productivity
If configured grant transmission uses non-contiguous sub-bands, then resource utilization efficiency is improved, but transmission reliability deteriorates
Solution Approach 1:
The patent modifies the transmission parameters by allowing the configured grant to span multiple non-contiguous sub-bands with different frequency characteristics. This parameter change enables the system to adapt to varying channel conditions across different sub-bands, improving resource utilization while maintaining reliability through selective sub-band usage based on channel quality.
3Stability of the object's composition
If first sub-band with low power headroom is excluded from transmission, then transmission stability is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent introduces dynamic sub-band selection and power distribution mechanisms that allow the system to adaptively utilize the first sub-band even when power headroom is low. The transmission power and resource allocation are dynamically adjusted based on real-time channel conditions, enabling stable transmission while maximizing resource utilization across all available sub-bands.
4Productivity
If multiple non-contiguous sub-bands are used simultaneously, then resource utilization efficiency is improved, but device complexity increases
Solution Approach 1:
The patent designs a universal configured grant transmission framework that can operate across multiple non-contiguous sub-bands using the same basic transmission mechanism. The system employs multi-functional resource allocation and power distribution that work across different sub-band configurations, reducing the need for separate handling procedures and minimizing device complexity despite the increased resource utilization.
Data Source
AI summary
An apparatus for wireless communication by a user equipment (UE) includes one or more processors, memory coupled with the one or more processors, and instructions stored in the memory. The instructions are executable by the one or more processors, individually or collectively, to cause the apparatus to receive a downlink message indicating a configured grant (CG) configuration and to perform a transmission in accordance with the CG configuration and using multiple sub-bands. The multiple sub-bands include a first sub-band and a second sub-band that is distinct from the first sub-band. The first sub-band includes a first set of frequency resources that is non-contiguous with a second set of frequency resources of the second sub-band.