Beam-Based Full Duplex Opportunity Announcements for Sidelink
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing sidelink full-duplex communications, leading to potential missed communications and interference due to the lack of effective beam-based opportunity announcements for full-duplex operations.
Innovation Solution
The implementation of beam-based full-duplex opportunity announcements, where user equipment (UE) reserves sidelink resources and transmits announcements indicating allowed transmission beams, enabling simultaneous transmission and reception in overlapping time frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam-based full-duplex opportunity announcements are implemented, then sidelink performance is improved and interference is reduced, but device complexity increases due to additional signaling and beam management requirements
Solution Approach 1:
The patent implements beam-based full-duplex opportunity announcements where UEs pre-signal their full-duplex transmission opportunities and associated beam information before actual transmissions occur. This preliminary announcement mechanism allows receiving UEs to prepare appropriate beamforming configurations and interference mitigation strategies in advance, improving communication reliability while managing complexity through structured advance notification rather than reactive complex processing
Solution Approach 2:
The patent introduces a standardized full-duplex opportunity announcement message structure that acts as an intermediary between transmitting and receiving UEs. This announcement includes beam-specific information and transmission parameters that mediate the interaction between full-duplex transmitters and half-duplex receivers, enabling coordinated resource usage and reducing interference without requiring complex real-time negotiation between devices
2Productivity
If simultaneous transmission and reception in overlapping time frames is enabled, then resource utilization is optimized, but interference management becomes more challenging
Solution Approach 1:
The patent applies local quality by associating specific beams with specific transmission opportunities and spatial directions. Each full-duplex opportunity announcement includes beam-specific information that defines the spatial characteristics of transmissions. This allows receiving UEs to apply targeted beamforming and spatial filtering localized to specific directions, enabling simultaneous transmissions in different spatial regions without mutual interference while optimizing resource utilization
Solution Approach 2:
The patent segments the wireless medium into distinct beam-based spatial channels for full-duplex operations. By dividing the communication space into multiple directional beams, the system allows simultaneous transmissions in different spatial segments without causing harmful interference. Each beam represents an independent spatial channel that can be managed separately, enabling optimized resource utilization across multiple spatial dimensions
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may reserve a first set of sidelink resources for a first transmission to a second UE. The UE may transmit a beam-based full duplex (FD) opportunity announcement associated with a second transmission that at least partially overlaps the first transmission in time, the beam-based FD opportunity announcement indicating a first transmission beam associated with the third UE. Numerous other aspects are described.