Uplink Data Transmission Across Multiple Panels
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Solution Overview
Problem
In New Radio (NR) systems, terminal devices face challenges in acquiring appropriate transmission parameters for uplink data transmission across multiple panels with different channel conditions, requiring distinct SRS resource sets and power control for efficient data transmission.
Innovation Solution
A method for uplink data transmission that involves receiving Downlink Control Information (DCI) to schedule data transmission, determining reference signal resource sets, and configuring power control parameters for each panel to optimize transmission parameters such as precoding matrices, power control, and beam settings, allowing for flexible and efficient data transmission across multiple panels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple panels are used for uplink data transmission, then data transmission efficiency is improved, but device complexity increases due to the need for separate transmission parameters for each panel
Solution Approach 1:
The patent segments the uplink transmission system into multiple independent panel units, each with its own SRS resource set and transmission parameters. This allows each panel to be configured and controlled independently, enabling parallel data transmission across multiple panels while maintaining manageable complexity through modular panel design
Solution Approach 2:
The patent implements dynamic configuration of SRS resource sets and transmission parameters for each panel based on real-time channel conditions. The network can dynamically allocate different SRS resource sets to different panels and adjust transmission parameters adaptively, allowing the system to optimize performance while managing complexity through dynamic resource allocation
2Reliability
If different transmission parameters are configured for different panels, then transmission quality is improved, but the complexity of acquiring and managing SRS resource sets increases
Solution Approach 1:
The patent performs preliminary configuration of multiple SRS resource sets before actual data transmission. The network pre-configures different SRS resource sets corresponding to different panels and transmission scenarios, so that during data transmission, the terminal simply needs to select from pre-configured resources rather than acquiring parameters in real-time, reducing acquisition complexity
Solution Approach 2:
The patent introduces SRS (Sounding Reference Signal) as an intermediary mechanism to acquire channel information for each panel. By using SRS resources as intermediaries, the system can indirectly obtain the necessary transmission parameters through channel sounding, simplifying the direct acquisition of transmission parameters while maintaining transmission quality
3Productivity
If independent power control is implemented for each panel, then spectrum efficiency is improved, but system complexity increases
Solution Approach 1:
The patent segments the power control function into independent panel-level controls, with each panel having its own power control parameters. This allows independent power adjustment for each panel based on its specific channel conditions and transmission requirements, improving spectrum efficiency while managing complexity through distributed power control
Solution Approach 2:
The patent implements dynamic parameter changes for power control by adjusting power control parameters independently for each panel based on real-time channel conditions. The system can change power levels adaptively for different panels, allowing optimization of spectrum efficiency through parameter adjustment while maintaining manageable complexity through automated parameter management
Data Source
AI summary
A method for transmitting uplink data and a terminal device are provided. In the method: first downlink control information (DCI) used for scheduling transmission of first uplink data is received from a network device, the first DCI comprising indication information of first reference signal resource set and indication information of first reference signal resource; the first reference signal resource set is determined according to the indication information of the first reference signal resource set, the first reference signal resource set comprising at least one reference signal resource; at least one first reference signal resource is determined from the first reference signal resource set according to the indication information of the first reference signal resource; and a transmission parameter for transmission of the first uplink data is determined according to the at least one first reference signal resource.