CSI Transmission Configuration via DCI Time Offsets
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Solution Overview
Problem
Current communication technologies, particularly in New Radio Access (NR), lack a detailed solution for Channel State Information (CSI) reporting based on different time offsets, which is essential for efficient CSI transmission between network devices and terminal devices.
Innovation Solution
The method involves determining a configuration for CSI transmission based on Downlink Control Information (DCI) that indicates Channel State Information-Reference Signals (CSI-RS) and timing information, including specific time offsets, to accurately transmit and receive CSI between network devices and terminal devices, allowing for precise timing and channel state determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If different time offsets are designed for CSI feedback in NR, then communication efficiency can be improved, but detailed solution for CSI reporting based on these offsets is still lacking
Solution Approach 1:
The patent applies parameter changes by utilizing different time offset values (K1, K2, K3) to configure CSI reporting instances. The method determines which CSI reporting instance to use based on the time offset indicated in the DCI, thereby adapting the system behavior to different timing requirements without increasing structural complexity.
Solution Approach 2:
The patent implements dynamics by making the CSI reporting configuration flexible and adaptable. The terminal device dynamically selects the appropriate CSI reporting instance (first, second, or third) based on the time offset value indicated in the received DCI, allowing the system to respond dynamically to different network requirements.
2Adaptability or versatility
If multiple CSI reporting instances are configured, then CSI transmission flexibility is improved, but timing information management becomes more complex
Solution Approach 1:
The patent applies segmentation by dividing the CSI reporting process into multiple distinct instances (first CSI reporting instance, second CSI reporting instance, third CSI reporting instance), each associated with specific time offsets. This segmentation allows independent management and selection of reporting instances based on timing requirements.
Solution Approach 2:
The patent implements preliminary action by pre-configuring multiple CSI reporting instances with different time offsets before actual CSI reporting occurs. The terminal device and network device prepare the timing information and reporting configurations in advance, enabling quick and accurate CSI transmission when needed without complex real-time calculations.
Data Source
AI summary
Embodiments of the present disclosure relate to methods and apparatuses for Control State Information (CSI) transmission. In example embodiments, a method implemented in a terminal device is provided. According to the method, in response to receiving DCI from a network device, a configuration for transmitting CSI to the network device is determined at least based on the DCI. The DCI indicates a CSI-RS for determining the CSI and timing information associated with the CSI. The CSI is determined by measuring the CSI-RS in response to receiving the CSI-RS from the network device. The CSI is transmitted to the network device based on the configuration.