Sub-band Full-Duplex Scheduling With Overlap Resolution
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Solution Overview
Problem
Wireless communication systems face challenges in efficiently managing sub-band full-duplex resources, leading to increased interference and inefficient communication throughput due to overlapping communication directions within the same time-domain resources.
Innovation Solution
The implementation of techniques that allow user equipment (UE) and network entities to receive control signaling for scheduling sub-band full-duplex slots, enabling the regulation of communications based on rules that handle overlapping resources, such as dropping or modifying occasions and resource blocks to align with intended communication directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If sub-band full-duplex resources are used to enable simultaneous transmission and reception, then communication throughput is improved, but interference increases
Solution Approach 1:
The frequency spectrum is divided into multiple sub-bands, with designated sub-bands for uplink and downlink communications. This segmentation allows simultaneous transmission and reception in different frequency portions without mutual interference, resolving the contradiction between improved throughput and reduced interference.
Solution Approach 2:
Different frequency sub-bands are assigned different communication directions (uplink or downlink) based on local requirements. This allows the system to optimize each sub-band for its specific function while maintaining overall full-duplex operation, balancing throughput improvement with interference management.
2Productivity
If control signaling is added to schedule sub-band full-duplex slots and manage overlapping resources, then communication efficiency is improved, but system complexity increases
Solution Approach 1:
The control signaling mechanism serves multiple functions: it schedules SBFD slots, identifies overlapping resources, and directs resolution actions. This multi-functionality approach improves communication efficiency while managing complexity by consolidating multiple control needs into a single signaling framework.
Solution Approach 2:
The system incorporates feedback mechanisms where the UE reports detected overlapping resources and the network entity adjusts scheduling accordingly. This feedback loop enables dynamic optimization of resource allocation, improving efficiency while managing complexity through adaptive control rather than rigid pre-planning.
3Object-affected harmful factors
If rules are applied to drop or modify overlapping scheduled occasions, then interference is reduced, but communication reliability may worsen
Solution Approach 1:
The system converts potentially harmful overlapping resources into beneficial opportunities by using the overlap detection mechanism to trigger corrective actions. When overlapping is detected, the system applies resolution rules that may drop conflicting occasions or adjust scheduling, transforming the harmful interference potential into a controlled optimization process that maintains reliability.
Solution Approach 2:
The system takes preliminary action by detecting overlapping resources before they cause interference and applying resolution rules in advance. This preventive approach identifies and resolves scheduling conflicts before they manifest as harmful interference, maintaining communication reliability while avoiding the need for reactive correction.
Data Source
AI summary
Methods, systems, and devices for wireless communication are described. A network entity may transmit, and a user equipment (UE) may receive, control signaling that configures or schedules sub-band full-duplex (SBFD) slots or symbols. The network entity may transmit, and the UE may receive, control signaling that schedules occasions, a resource block group, or a precoding resource block group that may overlap with the SBFD slot or symbols. The UE and the network entity may regulate communications based on application of one or more rules pertaining to communications when scheduled resource overlaps with a SBFD slot or symbol.