Multi-Panel Frequency-Domain PUSCH Allocation for NR Coverage
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Solution Overview
Problem
In new radio (NR) systems, there is a need to improve cell-edge coverage and provide more balanced quality of service within a service area, particularly in scenarios with dense access point deployments and high-frequency bands where blocking effects from obstacles are significant.
Innovation Solution
A method for determining frequency domain resources is provided, where multiple antenna panels of a terminal coordinate PUSCH transmissions to multiple TRPs of a base station using wave beams, with direction indications from TCI or SRS, and strategies for balanced or flexible frequency domain resource allocation based on channel state information or equal resource distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple antenna panels coordinate PUSCH transmissions to multiple TRPs using wave beams, then transmission reliability and throughput are improved, but device complexity increases
Solution Approach 1:
The terminal device divides its antenna system into multiple antenna panels, each capable of independent wave beam transmission to different TRPs. This segmentation allows parallel transmission paths that improve reliability through diversity while managing complexity through modular architecture. Each panel operates semi-independently with shared control resources.
Solution Approach 2:
Multiple antenna panels are merged into a coordinated transmission system that shares common control resources and scheduling. The base station coordinates all panels through unified downlink control information, combining their transmission capabilities to achieve higher throughput and reliability while avoiding complete independence that would maximize complexity.
2Reliability
If frequency domain resources are allocated based on channel state information for balanced distribution, then quality of service is improved, but measurement and control complexity increases
Solution Approach 1:
The system implements feedback mechanisms where terminal devices report channel state information to the base station, which then uses this information to allocate frequency domain resources optimally across multiple antenna panels. The feedback loop enables adaptive resource allocation that balances quality of service while managing measurement complexity through structured reporting protocols.
Data Source
AI summary
A method, apparatus and computer readable medium for determining a frequency domain resource in a wireless communication network. The frequency domain resource is determined by: determining, according to a frequency domain resource allocation strategy and frequency domain resource allocation (FDRA) information of a terminal, the frequency domain resource for a plurality of antenna panels of the terminal to coordinatively transmit physical uplink shared channel (PUSCH) transmission to a plurality of transmission reception points (TRPs) of a base station; where the antenna panels transmit the PUSCH transmission by using wave beams, directions of the wave beams used by different antenna panels are indicated by wave beam direction indication information, and the wave beam direction indication information includes: transmission configuration indication (TCI) or a source indication parameter of a sounding reference signal (SRS).