Multi-Carrier CSI Reporting With Carrier-Specific Latency Bounds
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in managing channel state information (CSI) reporting latency across different carrier frequencies, particularly with varying latency bounds, which can lead to inefficiencies and suboptimal network performance.
Innovation Solution
A method for a wireless device to manage CSI reporting by receiving and transmitting latency bounds for multiple carrier frequencies, allowing it to transmit CSI reference signals and requests across different carrier frequencies, thereby aligning reporting times and improving network efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single latency bound is used for CSI reporting across all carrier frequencies, then the system is simple to manage, but it cannot accommodate different latency requirements of different carrier frequencies
Solution Approach 1:
The patent segments the unified latency bound into multiple carrier-specific latency bounds (first latency bound for first carrier frequency, second latency bound for second carrier frequency). This allows each carrier to have its own optimized latency requirement, improving adaptability while the base station manages these segmented bounds centrally.
Solution Approach 2:
The patent introduces dynamic latency bound configuration where the base station can independently adjust the first latency bound and second latency bound based on different carrier frequency requirements. This dynamic adjustment capability enables the system to adapt to varying latency needs of different carriers without fixed constraints.
2Reliability
If CSI reporting is synchronized across all carrier frequencies, then network performance is optimized, but it increases complexity in managing different latency bounds
Solution Approach 1:
The patent merges the timing management of multiple carrier CSI reports at the base station level. The base station coordinates the first CSI report and second CSI report to be transmitted at synchronized time points, combining multiple reporting streams into a unified timing framework that optimizes network performance while centralizing management complexity.
Solution Approach 2:
The patent implements feedback mechanisms where the base station receives CSI reports from wireless devices and uses this information to adjust future reporting configurations. The base station monitors the synchronization status and latency compliance of reports from different carriers, providing feedback to maintain optimal network performance.
3Productivity
If separate latency bounds are configured for different carrier frequencies, then each carrier can be optimized independently, but the coordination of reporting times becomes more complex
Solution Approach 1:
The patent applies preliminary action by pre-configuring the first latency bound and second latency bound at the base station before CSI reporting begins. The base station calculates and establishes these latency bounds in advance based on carrier characteristics, and pre-coordinates the reporting time points, avoiding real-time coordination delays during actual operation.
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3
AI summary
A first wireless device transmits, to a second wireless device, one or more messages. The one or more messages indicate a first latency bound for reporting a first channel state information (CSI) of at least one first carrier frequency, wherein an expiration of a first time duration of the first latency bound is associated with a cancellation of reporting of the first CSI; and a second latency bound for reporting a second CSI of at least one second carrier frequency, wherein an expiration of a second time duration of the second latency bound is associated with a cancellation of reporting of the second CSI.