UE Capability Reporting for Simultaneous Multi-TRP PUSCH
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Solution Overview
Problem
Current UE capabilities restrict multiple uplink transmissions to non-overlapped time domains, limiting the reliability and throughput of 5G NR systems, especially in multi-TRP operations, despite the presence of multiple UE panels.
Innovation Solution
Implement systems and methods for simultaneous PUSCH transmissions with separate UE capability reports for each transmission, allowing fully or partially overlapped operations in frequency or time domains, and associating these transmissions with different transmission layers, beam states, or SRS resource sets, using codebook-based or non-codebook-based schemes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UE capability reports are used to manage uplink transmissions, then transmission reliability is improved, but device complexity increases due to multiple capability reports for simultaneous PUSCH transmissions
Solution Approach 1:
The patent segments the UE capability report into multiple independent capability indicators, each associated with a specific PUSCH transmission configuration. This allows the network to manage multiple simultaneous transmissions by handling individual capability parameters separately, improving reliability for each transmission path while maintaining manageable complexity through structured segmentation.
Solution Approach 2:
The patent introduces a new dimension to capability reporting by associating capability indicators with specific transmission configurations (codebook-based or non-codebook-based PUSCH). This dimensional expansion allows the system to represent complex simultaneous transmissions through a structured framework of capability parameters, making the complexity manageable while improving overall system reliability.
2Productivity
If multiple PUSCH transmissions are restricted to non-overlapped time domains, then device complexity is reduced, but productivity decreases due to limited throughput
Solution Approach 1:
The patent enables dynamic transmission scheduling by allowing PUSCH transmissions to overlap in time domain while maintaining separate capability reports for each transmission. This dynamic approach allows the system to optimize throughput by flexibly scheduling multiple transmissions simultaneously, with the capability report framework managing the complexity through structured parameter association.
Solution Approach 2:
The patent performs preliminary capability assessment by requiring separate UE capability reports for each PUSCH transmission configuration before actual transmission occurs. This preliminary action allows the network to pre-determine resource allocation and scheduling parameters, enabling complex simultaneous transmissions to be managed systematically while maximizing productivity.
3Adaptability or versatility
If single UE capability report is used for all PUSCH transmissions, then device complexity is reduced, but adaptability decreases for multi-TRP operations
Solution Approach 1:
The patent applies local quality by associating specific capability parameters with individual PUSCH transmission configurations targeted at different TRPs. Each capability indicator reflects the local requirements of its associated transmission, enabling optimized adaptability for multi-TRP operations while maintaining a structured report format that manages complexity through localized parameter association.
Solution Approach 2:
The patent creates a universal capability report framework that can accommodate multiple PUSCH transmission configurations with different TRPs, codebook-based or non-codebook-based schemes. This multi-functional framework allows a single report structure to serve multiple purposes, improving adaptability for various transmission scenarios while managing complexity through standardized parameter organization.
Data Source
AI summary
Presented are systems and methods for reporting capability of a user equipment (UE) for simultaneous physical uplink shared channel (PUSCH) transmission in multi-transmission reception point (TRP) operation. A wireless communication device may simultaneously transmit a first Physical Uplink Shared Channel (PUSCH) transmission and a second PUSCH transmission. The first PUSCH transmission can be associated with a first User Equipment (UE) capability report. The second PUSCH transmission can be associated with a second UE capability report.