Dynamic CSI Report Parameter Selection for 5G Uplink Control
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing channel state information (CSI) reports, particularly in 5G networks, due to large CSI feedback sizes and periodicity configurations that can lead to unreliable coverage and inefficient network resource usage.
Innovation Solution
A method where user equipment (UE) dynamically selects a CSI report parameter from a configured set based on signal measurements, such as RSRP or SINR values, and transmits an indication of this selection via uplink control information (UCI), allowing for adaptive CSI reporting configurations that enhance coverage and reduce unnecessary resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If CSI report periodicity is increased to reduce resource usage, then network resource efficiency improves, but CSI feedback reliability deteriorates
Solution Approach 1:
The patent applies dynamics by making the CSI report periodicity configurable and adaptable rather than fixed. The system allows dynamic adjustment of reporting periodicity based on channel conditions and beam management requirements, enabling the network to optimize between resource efficiency and feedback reliability in different operational scenarios.
Solution Approach 2:
The patent changes the parameter of CSI report periodicity from a fixed value to a configurable parameter that can be adjusted based on operational needs. By allowing different periodicity configurations (e.g., short vs. long periodicity), the system can adapt to varying channel conditions and reliability requirements without being constrained by a single fixed periodicity value.
2Measurement precision
If CSI feedback size is increased to improve measurement precision, then channel state information accuracy improves, but uplink resource consumption increases
Solution Approach 1:
The patent extracts only the essential and most relevant CSI components for reporting rather than transmitting complete CSI information. By selectively reporting only critical channel state parameters and using compressed feedback mechanisms, the system maintains measurement precision for key metrics while significantly reducing uplink resource consumption.
Solution Approach 2:
The patent implements partial action by reporting a subset of CSI information rather than complete CSI data. The system transmits only the most critical channel state parameters needed for effective beam management and scheduling decisions, avoiding the resource overhead of transmitting exhaustive CSI measurements while maintaining sufficient accuracy for network operations.
3Reliability
If beam management frequency is increased to improve link reliability, then communication reliability improves, but network resource overhead increases
Solution Approach 1:
The patent implements periodic action by establishing regular beam management intervals rather than continuous or overly frequent beam switching. The system uses configured periodicities for beam failure detection and recovery procedures, allowing the link to maintain reliability through structured periodic assessments while avoiding the resource overhead of continuous beam management operations.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may perform a signal measurement. The UE may select, based at least in part on a result of performing the signal measurement, a channel state information (CSI) report parameter, from a plurality of CSI report parameters. The plurality of CSI report parameters may be included in a CSI reporting configuration configured for the UE. The UE may transmit an indication of the selected CSI report parameter in uplink control information (UCI). Numerous other aspects are provided.