Physical Layer Neighbor Cell CSI Reporting for Fast Switching
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Solution Overview
Problem
Current communication technologies face challenges in efficiently reporting beam measurement results for neighbor cells, as existing methods rely on layer 3-based measurements that are time-consuming and delay cell switching.
Innovation Solution
A method for sending and receiving channel state information (CSI) reports at the physical layer, allowing for the reporting of first reporting information corresponding to a target reference signal of a neighbor cell, thereby reducing reporting time and improving cell switching speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If layer 3-based measurement results are used for neighbor cell beam reporting, then measurement accuracy is maintained, but reporting time increases and cell switching speed decreases
Solution Approach 1:
The patent segments the measurement and reporting process into two distinct layers: physical layer measurements for rapid reporting and layer 3 processing for detailed analysis. This allows beam measurement results to be reported at the physical layer without waiting for layer 3 processing, thereby reducing reporting time while maintaining measurement accuracy through the separation of functions.
Solution Approach 2:
The patent introduces a new dimension for beam reporting by enabling physical layer reporting in addition to the traditional layer 3 reporting. This multi-layer reporting approach allows the system to utilize both rapid physical layer measurements and accurate layer 3 measurements, resolving the contradiction between speed and accuracy.
2Speed
If layer 3-based measurement results are used for neighbor cell beam reporting, then comprehensive measurement analysis is achieved, but cell switching speed decreases
Solution Approach 1:
By segmenting the reporting process into physical layer and layer 3 components, the patent enables faster cell switching through physical layer reporting while maintaining the option for comprehensive layer 3 analysis when needed. This segmentation reduces the complexity of the overall process by allowing selective use of reporting layers based on operational requirements.
3Productivity
If physical layer CSI reporting is implemented for neighbor cells, then reporting time is reduced and cell switching speed is improved, but reporting process complexity increases
Solution Approach 1:
The patent implements a universal reporting framework that can operate at both physical and layer 3 levels, allowing the system to select the appropriate reporting layer based on current operational needs. This multi-functionality increases productivity by enabling fast physical layer reporting while maintaining the capability for detailed layer 3 analysis, without significantly increasing overall system complexity.
Data Source
AI summary
A neighbor cell channel state information CSI report sending method, a neighbor cell channel state information CSI report receiving method, and related devices. The method includes: sending a CSI report to a serving cell at a physical layer, where the CSI report includes first reporting information corresponding to a target reference signal RS of a neighbor cell.