Multi-Beam PUSCH Transmission via Spatial Domain Filters
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Solution Overview
Problem
Current wireless communication systems face limitations in communication flexibility and efficiency, particularly in the transmission of physical uplink shared channels (PUSCH), which hinders improvements in capacity, speed, and flexibility.
Innovation Solution
The implementation of user equipment (UE) and base station apparatuses with receiving and transmitting circuitry that apply spatial domain transmission filters based on reference signal resource indices, enabling efficient PUSCH transmission and reception, and the use of multiple reference signal indices for enhanced communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional communication structures are used for PUSCH transmission, then system simplicity is maintained, but communication flexibility and efficiency are limited
Solution Approach 1:
The patent segments the spatial domain transmission into multiple independent beams, each associated with a specific reference signal resource index. This allows the system to selectively activate individual beams or combinations of beams based on channel conditions, thereby improving communication flexibility without requiring a complete redesign of the overall transmission structure.
Solution Approach 2:
The patent enables dynamic selection and application of spatial domain transmission filters based on received reference signal resource indices. The system can adaptively switch between different beams and beam combinations during operation, allowing real-time optimization of transmission performance while maintaining a relatively simple underlying structure.
2Productivity
If single beam transmission is used, then system complexity is low, but communication capacity and speed are limited
Solution Approach 1:
The patent combines multiple spatial domain transmission beams to form a multi-beam transmission system. By merging the capabilities of multiple individual beams, the system achieves higher communication capacity and speed through spatial multiplexing, while each individual beam maintains its simplicity through association with specific reference signal resources.
Data Source
AI summary
A user equipment (UE) is described. Receiving circuitry receives first information including a reference signal resource index or a plurality of the reference signal resource indices. The receiving circuitry also receives second information including a physical uplink shared channel (PUSCH) configuration. Transmitting circuitry transmits a PUSCH. A first spatial domain transmission filter is applied based on a first reference signal resource index. A second spatial domain transmission filter is applied based on the first reference signal resource index or a second reference signal resource index.