CSI Antenna Port Reporting Across Half- and Full-Duplex Modes
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Solution Overview
Problem
Current wireless communication systems lack mechanisms to support efficient indication of antenna port selection for half-duplex and full-duplex modes, leading to increased signaling and processing overhead and reduced system efficiency.
Innovation Solution
User equipment (UE) reports antenna port information for both half-duplex and full-duplex modes, indicating common and subset ports through CSI reports, reducing signaling overhead and increasing system efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If antenna port information is separately indicated for half-duplex and full-duplex modes, then communication accuracy is improved, but signaling overhead increases
Solution Approach 1:
The patent combines antenna port indication for both half-duplex and full-duplex modes into a single CSI report. The UE selects antenna ports based on reference signals and determines a unified set of antenna ports that can be used for both communication modes, eliminating the need for separate indications and reducing signaling overhead while maintaining communication accuracy.
Solution Approach 2:
The patent enables a single antenna port selection to serve multiple communication modes (half-duplex and full-duplex). By identifying antenna ports that are valid for both modes, the system achieves multi-functionality where the same port configuration can be reused across different operational modes, reducing the need for mode-specific signaling.
2Adaptability or versatility
If separate antenna port configurations are maintained for half-duplex and full-duplex modes, then mode-specific optimization is improved, but device complexity increases
Solution Approach 1:
The patent merges the configuration management for half-duplex and full-duplex antenna ports into a unified process. The network entity configures a single set of antenna ports that can be used for both modes, eliminating the complexity of managing separate configurations while still allowing mode-specific communication operations.
Solution Approach 2:
The patent introduces dynamic mode indication alongside the unified antenna port selection. The UE indicates which communication mode (half-duplex or full-duplex) is being used for each transmission, allowing the system to adapt to different modes using a single configuration set, thereby reducing complexity while maintaining adaptability.
3Productivity
If comprehensive antenna port reporting is performed for both modes, then system efficiency is improved, but processing overhead increases
Solution Approach 1:
The patent combines the antenna port reporting process for half-duplex and full-duplex modes into a single unified reporting mechanism. The UE performs one antenna port selection based on reference signals and generates a single report that is valid for both modes, eliminating duplicate processing and reducing the time required for comprehensive reporting while maintaining system efficiency.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A UE may receive a set of reference signals from a network entity in accordance with a resource configuration. The set of reference signals may be received via non-full-duplex communication resources. Based on measuring the set of reference signals, the UE may transmit one or more channel state information (CSI) reports to the network entity in accordance with a first set of antenna ports and a second set of antenna ports. The first set of antenna ports may be selected by the UE based at least in part on the resource configuration, and the second set of antenna ports may be active antenna ports in full-duplex communication resources. The one or more CSI reports may include information associated with the first set of antenna ports.