Full-Duplex to Half-Duplex Switching for Self-Interference Control
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Solution Overview
Problem
Current wireless communication systems lack a procedure for transitioning a user equipment (UE) and network entity from full-duplex (FD) mode to half-duplex (HD) mode, which is necessary when self-interference is high or traffic demand changes, affecting communication efficiency.
Innovation Solution
The UE and network entity exchange control signaling to indicate their operational modes and capabilities, allowing for dynamic switching between FD and HD modes, including bandwidth filter operations, to optimize communication based on current conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full-duplex mode is used to improve communication efficiency, then data transmission rate is improved, but self-interference increases
Solution Approach 1:
The patent implements dynamic switching between full-duplex and half-duplex modes based on real-time self-interference conditions. The network entity and UE exchange control signaling to indicate capability and current mode, allowing the system to transition from static operation to adaptive dynamic operation that responds to changing interference conditions while maintaining optimal throughput.
2Productivity
If full-duplex mode is used to improve communication efficiency, then resource utilization is improved, but system complexity increases
Solution Approach 1:
The patent segments the duplex operation into distinct modes (full-duplex and half-duplex) that can be independently selected and switched. By dividing the operational space into discrete modes with clear transition rules indicated through control signaling, the system manages complexity through structured segmentation rather than continuous adaptive control.
3Reliability
If mode transition procedure is added to handle self-interference, then communication reliability is improved, but signaling overhead increases
Solution Approach 1:
The patent enables the UE and network entity to self-manage mode transitions through capability indication and mutual agreement protocols. The UE indicates its full-duplex capability, and both parties autonomously negotiate and execute mode transitions based on their respective states, reducing the need for centralized control signaling and minimizing overhead while ensuring reliable transitions.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. Techniques describe herein provide for transition from full-duplex (FD) operation to a half-duplex (HD) operation. A user equipment (UE) may transmit, to a network entity, control signaling indicating a capability to operate in a FD mode. The network entity may transmit, to the UE, control signaling indicating a network entity mode and a UE mode for communication of one or more messages. The network entity mode may be the FD mode or a HD mode, and the UE mode may be the FD mode or the HD mode. The UE 115 may communicate the one or more messages based on the indicated network entity mode and the indicated UE mode.