CSI Report Sub-Configuration Segmentation for 5G Signaling Overhead
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems, particularly in 5G/NR networks, face challenges in efficiently reporting channel state information (CSI) due to limited capabilities in adapting operation states and high signaling overhead, which affects network energy efficiency and service quality.
Innovation Solution
The method involves a user equipment (UE) receiving information related to non-zero power CSI reference signals (NZP CSI-RS) for channel measurement and CSI interference measurements, determining multiple CSI report sub-configurations, and transmitting CSI reports accordingly, allowing for flexible CSI reporting configurations that adapt to different network operating states, thereby reducing energy consumption and improving service quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple CSI report sub-configurations are configured for different network operating states, then adaptability to various network states is improved, but device complexity and signaling overhead increase
Solution Approach 1:
The patent segments the CSI reporting configuration into multiple independent sub-configurations, each corresponding to a specific network operating state. Each sub-configuration contains complete CSI reporting parameters that can be independently activated or deactivated based on the current network state, allowing the system to adapt to different operating conditions without configuring and processing all possible configurations simultaneously.
Solution Approach 2:
The patent implements dynamic selection of CSI report sub-configurations based on network operating states. The network can activate or deactivate specific sub-configurations according to traffic conditions, making the system adaptable and flexible. This dynamic approach allows the system to transition between different operating states efficiently without reconfiguring the entire CSI reporting framework.
2Adaptability or versatility
If multiple CSI report sub-configurations are configured for different network operating states, then adaptability to various network states is improved, but signaling overhead increases
Solution Approach 1:
By segmenting CSI reporting into sub-configurations, the patent enables selective activation of only those configurations needed for the current network state. This reduces the amount of signaling required compared to always maintaining and transmitting all possible CSI report configurations, as the network can deactivate sub-configurations that are not currently needed.
Solution Approach 2:
The patent allows the network to deactivate (discard) CSI report sub-configurations that are not needed for the current network operating state, and reactivate them when needed. This reduces signaling overhead by not continuously maintaining all configurations in an active state, while preserving the ability to recover and use them when network conditions change.
3Reliability
If UE determines and reports multiple CSI sub-reports, then service quality is maintained across different network states, but energy consumption increases
Solution Approach 1:
The patent implements dynamic CSI reporting where the UE only determines and reports CSI sub-reports for activated sub-configurations corresponding to the current network operating state. This dynamic approach ensures that service quality is maintained by having ready-to-use configurations for different states, while reducing energy consumption by not continuously processing and reporting all possible CSI configurations.
Solution Approach 2:
The UE can discard (skip processing) CSI report sub-configurations that are not currently activated, reducing computational energy consumption. When network conditions change and a previously discarded configuration becomes relevant, the UE can quickly recover and activate it, ensuring service quality is maintained without continuous energy-intensive processing of all configurations.
Data Source
AI summary
Methods and apparatuses for reporting channel state information (CSI) associated with sub-configurations in wireless communication systems. A method includes receiving information related to non-zero power CSI reference signals (NZP CSI-RSs) for channel measurement and CSI-RSs or CSI interference measurements (CSI-RSs/CSI-IMs) for interference measurement on a cell and information related to a CSI report associated with CSI report sub-configurations. The method further includes receiving information related to indicating CSI report sub-configurations from the CSI report sub-configurations, and the NZP CSI-RSs for channel measurement and the one or more CSI-RSs/CSI-IMs for interference measurement. The method further includes determining a CSI sub-reports corresponding to the CSI report sub-configurations, respectively, based on the reception of the NZP CSI-RSs for channel measurement and the one or more CSI-RSs/CSI-IMs for interference measurement and transmitting an uplink channel with the CSI report including the CSI sub-reports.