Full-Duplex SSB Transmission Priority Rules
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing synchronization signal block (SSB) transmissions in full-duplex communications, particularly in resolving self-interference and cross-link interference.
Innovation Solution
The proposed solution involves configuring specific symbols for full-duplex communications and SSB transmissions, where user equipment (UE) uses a priority rule to determine whether to transmit an uplink communication or receive an SSB, based on the type of uplink transmission scheduled.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a symbol is configured for both full-duplex communications and SSB transmission, then resource utilization is improved, but self-interference and cross-link interference occur
Solution Approach 1:
The patent implements dynamic scheduling that adapts to interference conditions by adjusting whether to schedule uplink transmissions or SSB receptions in full-duplex symbols. The network entity determines the symbol configuration dynamically based on traffic conditions and interference levels, allowing the system to optimize resource utilization while avoiding harmful interference through real-time adaptability.
Solution Approach 2:
The patent changes the operational parameters of the communication system by introducing a priority rule mechanism that modifies how symbols are allocated between uplink and downlink. By adjusting the scheduling parameters and priority assignments, the system can switch between different operational modes (UL-priority vs. SSB-priority) to resolve interference issues while maintaining efficient resource utilization.
2Reliability
If a priority rule is implemented to resolve interference, then reliability is improved, but system complexity increases
Solution Approach 1:
The patent segments the full-duplex symbols into distinct scheduling categories by introducing priority rules that divide symbols into UL-priority symbols and SSB-priority symbols. This segmentation allows the system to apply different scheduling strategies to different symbol types, improving reliability through structured interference management while keeping the complexity manageable through clear categorization.
Solution Approach 2:
The priority rule mechanism acts as an intermediary layer between the physical layer interference management and the MAC layer scheduling. This intermediary structure provides a systematic way to resolve conflicts between uplink transmissions and SSB receptions, improving reliability through consistent conflict resolution while organizing the complexity into a manageable hierarchical framework.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described in which full-duplex communications may be configured at a serving network entity. One or more symbols of a set of symbols may be configured for full-duplex communications at the network entity, and at least a first symbol that is configured for full-duplex communications also may be configured for synchronization signal block (SSB) transmissions according to a SSB configuration. A user equipment (UE) that is configured to monitor the first symbol for a SSB may use a priority rule to determine whether to transmit an uplink communication on the first symbol, or to monitor for the SSB on the first symbol. Additionally, or alternatively, a UE may transmit capability information that indicates whether the UE supports the full-duplex operation configured in SSB symbols.