Full-Duplex Wireless Interference Management via Contingent Uplink Invitations
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Solution Overview
Problem
Full-duplex wireless communications face challenges in maximizing area throughput due to interference issues, where concurrent data transmissions can lead to reduced performance if interference from one station prevents proper reception at another.
Innovation Solution
Implementing interference management techniques that allow devices to initiate downlink transmissions and invite uplink transmissions from other devices while minimizing interference, by sending an interference-contingent uplink transmission invitation and adjusting transmission powers based on collateral interference margins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full-duplex communications are implemented to enable concurrent transmissions, then area throughput is improved, but interference between concurrent communications worsens reception quality
Solution Approach 1:
The system performs preliminary actions by sending transmission invitations and receiving interference information before actual data transmissions occur. This allows devices to assess interference conditions in advance and adjust transmission parameters proactively, preventing interference issues from degrading full-duplex performance.
Solution Approach 2:
The system dynamically changes transmission parameters including power levels, modulation schemes, and resource allocation based on real-time interference assessments. By adjusting these parameters according to interference conditions, the system maintains full-duplex throughput while mitigating harmful interference effects on concurrent communications.
2Reliability
If transmission power is increased to improve signal quality, then reception reliability is improved, but interference to other concurrent transmissions worsens
Solution Approach 1:
The system dynamically adjusts transmission power levels based on real-time interference assessments and channel conditions. By optimizing power levels rather than using fixed high power, the system achieves reliable reception while minimizing interference generated to other concurrent full-duplex transmissions.
Solution Approach 2:
The system implements feedback mechanisms where devices share interference information and reception quality metrics. This feedback loop allows transmitting devices to adjust their power levels and other parameters to maintain reliable reception while keeping interference to others at acceptable levels.
3Object-affected harmful factors
If interference management protocols are implemented to reduce interference, then reception quality is improved, but system complexity increases
Solution Approach 1:
The system employs self-service mechanisms where each device independently assesses its own interference environment and makes autonomous decisions about transmission parameters. This distributed approach reduces the need for complex centralized coordination while still achieving effective interference management.
Solution Approach 2:
The system performs preliminary interference assessments and exchanges control information before data transmissions begin. By resolving interference coordination issues in advance through simplified signaling, the system avoids the need for complex real-time interference management during actual data transmission.
Data Source
AI summary
Interference management techniques for full-duplex wireless communications are described. In one embodiment, for example, an apparatus may comprise logic, at least a portion of which is in hardware, the logic to initiate a downlink (DL) transmission procedure for sending a DL data transmission, and during the DL transmission procedure, send an interference-contingent uplink (UL) transmission invitation identifying a destination of the DL data transmission and begin receiving a UL data transmission in response to the interference-contingent UL transmission invitation. Other embodiments are described and claimed.