Full Duplex UE Priority Signaling via Mode Transition
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Solution Overview
Problem
Existing wireless communication systems face challenges in rapidly communicating priority signaling due to limitations in full duplex mode operations, leading to delayed or unreliable transmission of urgent messages.
Innovation Solution
A wireless communication method and system that enable a first user equipment (UE) to operate in full duplex mode, receive a control signal with a low data rate, and transition from transmit mode to receive mode to receive priority signals, while configuring aspects of the control signal based on distance, signal isolation, and self-interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a UE operates in full duplex mode to simultaneously transmit and receive signals, then communication efficiency and speed are improved, but self-interference and detection reliability deteriorate
Solution Approach 1:
The system dynamically switches the UE between full duplex mode and receive mode based on the detection of priority signaling. When a control signal indicating priority signaling is detected, the UE transitions from full duplex operation to receive mode, allowing dynamic adaptation between high efficiency and high reliability states
Solution Approach 2:
A control signal acts as an intermediary mechanism to coordinate the transition between operating modes. The control signal, transmitted by another UE, serves as a mediator that triggers the receiving UE to switch from full duplex to receive mode, enabling reliable priority signal detection without direct conflict
2Use of energy by moving object
If a UE receives control signals at low data rates in full duplex mode, then power consumption is reduced, but signal detection capability deteriorates due to reduced SINR threshold
Solution Approach 1:
The system performs preliminary detection of control signals at reduced SINR thresholds during full duplex operation. This preliminary action allows the UE to identify potential priority signaling before transitioning to receive mode, enabling early warning detection without requiring full detection capability during simultaneous transmission
3Speed
If priority signaling is transmitted during UE transmission, then communication speed is improved, but signal quality deteriorates due to self-interference
Solution Approach 1:
The system extracts priority signaling transmission from the simultaneous transmission-reception context. By detecting the control signal during full duplex operation and then transitioning to dedicated receive mode for priority signal reception, the system separates the priority signaling function from the conflicting simultaneous operations, ensuring high quality reception
Data Source
AI summary
Methods, systems, and devices for wireless communication are described. A first user equipment (UE) may operate in a full duplex mode, and may receive a control signal associated with a low data rate from a second UE while transmitting a signal to a third UE. The control signal may be received at the first UE according to a reduced detection threshold. The second and third UEs may or may not be the same UE, and the control signal may indicate that the second UE has priority signaling for the first UE. In some cases, the first UE may communicate control signaling configuring various aspects of the control signal based on a distance between the first UE and the second UE or self-interference associated with the first UE. The second UE may transmit the priority signal based on determining that the first UE transitioned to operating in a receive mode.