Uplink Transmission Parameter Adaptation for Multi-Panel NR Terminals
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Solution Overview
Problem
In the New Radio (NR) system, determining optimal transmission parameters for uplink information on multiple antenna panels is challenging due to changing transmission environments, affecting the efficiency and accuracy of physical uplink shared channel (PUSCH) transmission.
Innovation Solution
An information transmission method that determines transmission parameters based on spatial information associated with uplink information, including transmission configuration, antenna panel, and TRP information, to adapt to environmental changes and improve system performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If transmission parameters are determined based on fixed SRS resource sets, then configuration simplicity is maintained, but adaptability to changing transmission environments deteriorates
Solution Approach 1:
The patent applies dynamics by enabling the terminal device to dynamically determine transmission parameters based on current spatial information rather than using fixed pre-configured parameters. The terminal device selects appropriate SRS resource sets and determines transmission parameters adaptively according to real-time transmission environment characteristics, allowing the system to respond to changing conditions while maintaining manageable complexity through standardized selection criteria.
2Measurement precision
If multiple SRS resource sets are configured for different antenna panels, then transmission accuracy for each panel is improved, but determination complexity increases
Solution Approach 1:
The patent applies segmentation by associating different SRS resource sets with different antenna panels or spatial information types. Each SRS resource set is specifically configured for particular spatial characteristics, allowing the terminal device to select the appropriate resource set based on the current transmission requirements. This segmented approach improves measurement precision for each panel while managing determination complexity through clear association rules.
Solution Approach 2:
The patent applies local quality by configuring different SRS resource sets with different parameters optimized for specific spatial conditions or antenna panels. Each resource set has localized optimization for its associated spatial information, enabling accurate transmission parameter determination for each specific panel or spatial scenario while maintaining overall system manageability.
3Reliability
If transmission parameters are updated frequently to adapt to environment changes, then transmission reliability is improved, but signaling overhead increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple SRS resource sets with different transmission parameters before actual transmission occurs. The terminal device selects from these pre-prepared resource sets based on current spatial information, avoiding the need for frequent real-time parameter updates and reducing signaling overhead while maintaining transmission reliability through appropriate parameter selection.
Data Source
AI summary
An information transmission method includes: determining, based on at least one piece of spatial information associated with at least one group of uplink information, at least one first transmission parameter set used by the at least one group of uplink information; and transmitting, based on the at least one first transmission parameter set, the at least one group of uplink information to the network device.