NR Terminal Resource Allocation Across PUCCH and PUSCH
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Solution Overview
Problem
Existing wireless communication systems lack flexibility and efficiency in resource allocation, particularly in the context of New Radio (NR) systems, which are expected to support diverse communication scenarios such as enhanced Mobile BroadBand (eMBB), massive Machine Type Communication (mMTC), and Ultra Reliable and Low Latency Communication (URLLC).
Innovation Solution
The system employs OFDM symbols with cyclic prefix (CP-OFDM) in downlink and Discrete Fourier Transform-spread-OFDM (DFT-s-OFDM) in uplink, utilizing resource grids and bandwidth parts (BWPs) for efficient resource allocation, including PUCCH and PUSCH, and supports carrier aggregation across multiple serving cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional communication structure is used, then system simplicity is maintained, but communication flexibility and efficiency are limited
Solution Approach 1:
The communication structure is segmented into distinct functional components: downlink communication unit with OFDM symbols, uplink communication unit with DFT-s-OFDM, resource grid management, and bandwidth part configuration. This segmentation enables independent optimization of each component while maintaining overall system flexibility and efficiency.
2Productivity
If resource allocation is optimized for specific communication scenarios, then system performance improves, but system complexity increases
Solution Approach 1:
The system optimizes performance by dynamically adjusting key parameters including subcarrier spacing, cyclic prefix length, bandwidth part configurations, and resource block allocations. These parameter changes enable adaptation to different communication scenarios (eMBB, mMTC, URLLC) without requiring fundamentally different system architectures.
Data Source
AI summary
The terminal device determines frequency domain resources for the PUCCH based on an intersection of resource blocks corresponding to the first interlace(s) and resource blocks in a frequency portion among first frequency portions which is defined by the guard bands, and the terminal device determines frequency domain resources for the PUSCH based on an intersection of resource blocks corresponding to the second interlace(s) and resource blocks in frequency portions among second frequency portions which is given based on the second higher layer parameter, the second frequency portions being within the uplink carrier.