Wireless Communication CSI Reporting Through Dynamic Power Signaling
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Solution Overview
Problem
Existing 5G wireless communication systems face inefficiencies in network energy consumption due to fixed transmission power settings, leading to inaccurate CSI reports when dynamic power adjustments are implemented, particularly with semi-static power offsets between PDSCH and CSI-RS.
Innovation Solution
Implementing dynamic power adjustments through signaling mechanisms like RRC, MAC CE, and DCI to manage power offsets and TCI states, enabling precise CSI measurements and reports by configuring power control offsets and CSI resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed transmission power is used for downlink transmission, then network energy consumption is simplified to manage, but power efficiency and adaptability to varying channel conditions deteriorate
Solution Approach 1:
The patent implements dynamic power adjustment mechanisms where the gNB can modify transmission power based on real-time channel conditions and traffic requirements. Power adjustment parameters are transmitted via signaling (RRC, MAC CE, or DCI) to enable the UE to adapt power settings dynamically, transforming the static power management system into a dynamic one that responds to varying operational conditions.
Solution Approach 2:
The patent changes power-related parameters (power offsets, TCI states) from fixed values to dynamically adjustable parameters. By introducing multiple power offset sets and enabling selection through signaling, the system allows parameter changes without requiring complete reconfiguration, achieving energy efficiency while maintaining manageable complexity through controlled parameter variation.
2Use of energy by moving object
If dynamic power adjustment is implemented, then network energy consumption is reduced, but CSI report accuracy deteriorates due to semi-static power offset parameters
Solution Approach 1:
The patent makes power offset parameters dynamic by enabling updates through MAC CE and DCI signaling in addition to RRC configuration. This allows the power offsets used for CSI calculation to be updated in real-time, ensuring that CSI reports are based on current power settings rather than semi-static values, thereby maintaining measurement precision during dynamic power adjustment.
Solution Approach 2:
The patent establishes a feedback mechanism where the gNB transmits power adjustment parameters to the UE, the UE performs CSI measurements and reports based on these parameters, and the gNB uses this feedback to further optimize power settings. This closed-loop feedback ensures that CSI accuracy is maintained even as power settings change dynamically.
3Adaptability or versatility
If multiple power offset sets are configured for dynamic adjustment, then power control flexibility is improved, but signaling complexity and device configuration complexity increase
Solution Approach 1:
The patent segments power offset configuration into multiple independent sets (first power offset set, second power offset set, third power offset set), each serving different purposes or channel conditions. This segmentation allows flexible selection of appropriate power offsets without requiring a single complex configuration, managing complexity through modular organization of power control parameters.
Solution Approach 2:
The patent performs preliminary configuration of multiple power offset sets through RRC signaling before dynamic operation. By pre-configuring the available power offset options and their associations with different CSI resources, the system reduces the complexity of real-time decision-making, allowing faster dynamic adjustment through simpler MAC CE or DCI signaling later.
Data Source
AI summary
A wireless communication method is disclosed. The wireless communication method includes: receiving, by a wireless communication terminal from a wireless communication node, at least one of a first signaling, a second signaling, or a third signaling; and performing, by the wireless communication terminal, at least one of a measurement or a reporting according to the received at least one of a first signaling, a second signaling, or a third signaling.