Beam-Based Full-Duplex Subband Configuration Management
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing beam-based full-duplex configurations, leading to communication mismatches and increased latency due to the inability of repeaters or reconfigurable intelligent surfaces to support subband full-duplex forwarding.
Innovation Solution
The implementation of beam-based subband full-duplex (SBFD) configurations, where a network entity identifies subsets of communication parameters applicable for full-duplex operations and transmits control signals to user equipment (UE) indicating these configurations, allowing the UE to determine whether to use SBFD or another configuration based on specific communication parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beam-based subband full-duplex configurations are implemented, then communication efficiency is improved, but system complexity increases due to multiple configuration parameters and dynamic selection requirements
Solution Approach 1:
The patent segments the duplex configuration into multiple subsets, each associated with specific communication parameters such as beam directions, frequency subbands, and time resources. This segmentation allows the system to manage complexity by dividing the overall configuration space into manageable, parameter-specific subsets that can be independently selected and applied.
Solution Approach 2:
The patent implements dynamic configuration selection where the network entity and UE can switch between different full-duplex configuration subsets based on current communication conditions, beam directions, and parameter values. This dynamic approach enables the system to adapt to changing conditions while maintaining efficient full-duplex operation without being locked into a static complex configuration.
2Adaptability or versatility
If multiple full-duplex configurations are supported with respective parameter subsets, then adaptability is improved, but determination complexity increases for selecting the appropriate configuration
Solution Approach 1:
The patent applies preliminary action by pre-defining multiple full-duplex configuration subsets with their associated communication parameters before actual communication occurs. The network entity prepares these configuration options in advance, allowing the UE to efficiently determine the appropriate configuration by comparing current communication parameters against the pre-defined subsets rather than performing complex real-time optimization.
Solution Approach 2:
The patent utilizes parameter changes by associating each full-duplex configuration subset with specific communication parameter ranges, beam directions, and resource allocations. The determination of which configuration to use is based on matching current parameter values against the defined subsets, simplifying the selection process through parameter-based classification rather than exhaustive evaluation.
3Reliability
If full-duplex configuration is applied to all communication parameters, then coverage is improved, but latency increases due to mismatched configurations for unsupported parameters
Solution Approach 1:
The patent applies local quality by applying full-duplex configuration selectively to specific communication parameters, beam directions, and frequency subbands rather than uniformly to all parameters. This allows the system to achieve full-duplex operation for supported parameter combinations while maintaining half-duplex or alternative configurations for parameters that do not support full-duplex, thereby avoiding latency penalties from mismatched configurations.
Solution Approach 2:
The patent introduces an intermediary mechanism through the network entity's control signal that indicates which full-duplex configuration subset is applicable for current communication. This intermediary signaling allows the UE to correctly identify and apply the appropriate configuration, preventing latency caused by configuration mismatches while maintaining broad coverage across different communication scenarios.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A network entity may identify a subset of communication parameters for which a full-duplex configuration is applicable for a wireless communication between a user equipment (UE) and the network entity. The UE may receive an indication of the full-duplex configuration and the subset of communication parameters and determine whether to use the full-duplex configuration or another configuration based on whether a communication parameter of the wireless communication is included in the subset of communication parameters. Alternatively, the network entity may identify multiple full-duplex configurations and respective subsets of communication parameters for which each full-duplex configuration is applicable. The UE may receive an indication of the multiple full-duplex configurations and the respective subsets of communication parameters and identify a first full-duplex configuration based on the communication parameter being included in a first subset of communication parameters corresponding to the first full-duplex configuration.