Full Duplex Resource Direction Determination
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing available frequency resources and determining communication directions for full duplex operations, particularly in shared spectrum environments, leading to potential interference and suboptimal resource utilization.
Innovation Solution
The method involves a user equipment (UE) receiving indications of available frequency resources and direction information from a base station, determining communication directions based on this information, and communicating accordingly to optimize full duplex operations within the available resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station senses the spectrum to determine available portions and transmits control messages to indicate these portions, then the system can avoid interfering with other wireless systems, but the resource utilization efficiency decreases due to the additional sensing and signaling overhead
Solution Approach 1:
The base station performs spectrum sensing in advance to identify available frequency portions before communication occurs. The LBT procedure is executed preliminarily to detect channel availability, and the base station prepares and transmits control messages indicating the available portions beforehand, allowing UEs to efficiently utilize pre-identified resources without real-time decision delays
Solution Approach 2:
Control messages serve as an intermediary mechanism between the base station's spectrum sensing results and the actual communication process. These messages convey available frequency portions to UEs, enabling coordinated resource usage without direct real-time sensing by each device, thus reducing overall sensing overhead while maintaining interference avoidance
2Object-affected harmful factors
If the base station and UE communicate using available portions of the spectrum identified through LBT, then interference with other wireless systems is minimized, but the communication flexibility and adaptability to dynamic spectrum conditions are reduced
Solution Approach 1:
The system dynamically adapts to spectrum conditions by continuously performing LBT sensing and updating control messages that indicate available frequency portions. The base station can change which portions are indicated as available based on real-time sensing results, allowing flexible adaptation to dynamic spectrum conditions while maintaining interference avoidance through the LBT framework
Solution Approach 2:
The base station changes the parameters of available frequency portions indicated in control messages based on LBT sensing outcomes. When spectrum conditions change, the base station updates which frequency portions are marked as available, enabling adaptive communication that responds to changing environmental conditions while maintaining protection against interference
Data Source
AI summary
A method of wireless communication at a user equipment (UE) includes receiving an indication of available frequency resources, receiving direction information, and determining one or more communication directions for each of the available frequency resources based on the direction information. The method also includes communicating with a base station using the available frequency resources based on the determined one or more communication directions for each of the available frequency resources.