NR Duplex Operation Interference Mitigation via UE Gap Indication
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Solution Overview
Problem
Existing wireless communication systems face challenges in managing duplex operations due to interference between transmission and reception in the same frequency band, leading to inefficient use of radio resources and inability to handle UL to DL interference effectively, particularly in advanced devices.
Innovation Solution
Implementing UE preferred gap indication, UE UL to DL interference mitigation, enhanced broadcasting signal configuration, and UE RF capability indication to optimize duplex operation, including preferred gap signaling, interference measurement reporting, and simultaneous DL/UL operation capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If simultaneous DL/UL operation is implemented in the same frequency band, then resource utilization efficiency is improved, but interference between transmission and reception increases
Solution Approach 1:
The patent segments the frequency band into different portions, with some frequencies used for downlink transmission and others for uplink reception simultaneously. This frequency division allows both DL and UL operations to occur at the same time without mutual interference, resolving the contradiction between improved resource utilization and interference generation.
2Reliability
If advanced duplex operation capabilities are added to handle UL to DL interference, then communication performance is improved, but device complexity increases
Solution Approach 1:
The patent implements preliminary action by having the UE indicate its preferred gap requirements and RF capabilities to the base station before actual duplex operation begins. The base station then pre-configures appropriate duplexing parameters and resource allocations based on this information, allowing advanced interference handling capabilities to be deployed in a controlled manner that minimizes additional device complexity while improving communication performance.
Data Source
AI summary
Systems and methods are provided for duplex operation enhancement, including providing a user equipment (UE) preferred gap indication, UE uplink (UL) to downlink (DL) interference mitigation, enhanced broadcasting signal configurations, CE RF capability indication, or combinations thereof.