Partial Uplink Slot Segmentation for Full-Duplex Interference Skipping
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing full-duplex partial uplink transmissions due to interference between uplink and downlink signals, particularly in half-duplex slots, leading to suboptimal resource utilization and performance.
Innovation Solution
The implementation of slot information and segmentation information to identify and manage slot segments within full-duplex slots, along with resource skipping mechanisms based on proximity to downlink portions, allowing for partial uplink transmissions that optimize resource usage and minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full-duplex partial uplink transmissions are implemented, then resource utilization efficiency is improved, but interference between uplink and downlink signals increases
Solution Approach 1:
The patent segments the uplink slot into multiple parts: a first set of resources for uplink transmission and a second set of resources for downlink reception. This segmentation allows the system to simultaneously perform full-duplex operations while managing interference by spatially separating uplink and downlink resources within the same slot structure.
Solution Approach 2:
The patent applies different quality characteristics to different resource sets within the slot. The first resource set is optimized for uplink transmission with appropriate power and modulation parameters, while the second resource set is optimized for downlink reception. This local quality differentiation enables efficient full-duplex operation by tailoring transmission characteristics to specific functional requirements.
2Object-generated harmful factors
If resource skipping is performed in slot segments, then interference is reduced, but transmission time is increased
Solution Approach 1:
The patent implements partial uplink transmission by skipping only the second set of resources that would cause interference, while maintaining transmission in the first set of resources. This partial action approach reduces interference without completely abandoning the slot for uplink transmission, thereby minimizing time loss compared to full slot skipping.
Solution Approach 2:
The patent employs resource skipping by identifying and omitting transmission in the second resource set that would cause harmful interference to downlink reception. The UE rushes through the interference-prone portion by skipping it entirely, while maintaining transmission in the safe first resource set, thus reducing overall interference while preserving useful transmission time.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may obtain slot information that indicates whether a slot is a half-duplex slot or a full-duplex slot and that indicates a frequency structure of the full-duplex slot. The UE may receive segmentation information that indicates a plurality of slot segments within the slot and that indicates a skipping order for the plurality of slot segments. The UE may initiate a partial uplink transmission. The UE may perform resource skipping in one or more slot segments of the plurality of slot segments based at least in part on the slot information and the segmentation information. Numerous other aspects are described.