Full-Duplex Scheduling With Restricted Resources for Lower Interference
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Solution Overview
Problem
Full-duplex communication schemes in wireless systems often result in higher interference and decreased reliability due to simultaneous transmission and reception on the same resources.
Innovation Solution
Implementing restricted resource scheduling rules to restrict full-duplex operations on specific resources, allowing for scheduling full-duplex communications on dedicated or guard-banded resources to reduce interference and enhance reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full-duplex communications are implemented on the same resources, then throughput and spectral efficiency are improved, but interference increases and reliability decreases
Solution Approach 1:
The patent segments the communication resources into two distinct sets: a first set of resources restricted for full-duplex operations and a second set of resources designated for full-duplex communications. This segmentation allows the system to maintain full-duplex capabilities on the second set while avoiding interference issues on the first set, thereby resolving the contradiction between throughput improvement and reliability maintenance.
Solution Approach 2:
The patent applies local quality by imposing different operational characteristics on different resource sets. The first set of resources has restricted full-duplex operation to ensure reliability, while the second set allows full-duplex operations to maximize throughput. This localized differentiation enables simultaneous achievement of both reliability and productivity goals.
2Productivity
If full-duplex communications are implemented on the same resources, then spectral efficiency is improved, but interference increases
Solution Approach 1:
The patent divides the frequency-time resources into separate sets, with the second set specifically allocated for full-duplex communications. This segmentation confines interference-generating full-duplex operations to a dedicated resource set, preventing interference from affecting other communications on the first set of resources, thus maintaining spectral efficiency while controlling interference.
Solution Approach 2:
The patent introduces restricted resource scheduling rules as an intermediary mechanism that mediates between full-duplex communication demands and interference avoidance requirements. These rules act as a control layer that enables full-duplex operations on the second set of resources while preventing harmful interference to the first set, resolving the contradiction between spectral efficiency and interference levels.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A base station may identify an applicable restricted resource scheduling rule for restricting full-duplex operation on a first set of resources. The base station may transmit one or more control messages scheduling one or more full-duplex communications on a second set of resources based on the applicable restricted resource scheduling rule for restricting full-duplex operation on the first set of resources. In some examples, the second set of resources may overlap in time with the first set of resources. In other examples, the second set of resources may not overlap with the first set of resources in time or frequency. Accordingly, the base station may communicate the one or more full-duplex communications on the second set of resources. The described techniques may enable the base station to perform full-duplex communications with reduced interference and improved reliability.