SBFD-UE Hard Constraint Reporting for Full-Duplex Scheduling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In subband full-duplex (SBFD) networks, user equipment (UEs) face performance degradations due to the need for coordinating full-duplex communications with gNodeBs, as they lack the ability to effectively report hard constraints for resource allocation, leading to potential interference and reduced throughput.
Innovation Solution
UEs are equipped with a transceiver and processor to establish full-duplex communication with network nodes, allowing them to report hard constraints such as minimum self-interference cancellation (SIC) guardband configurations, bandwidth allocations, and capability classes to assist network nodes in scheduling resources, thereby mitigating interference and ensuring reliable full-duplex operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If SBFD-UEs perform full-duplex communication without reporting hard constraints, then the system can attempt resource allocation, but performance degrades due to interference and coordination failures
Solution Approach 1:
The patent implements feedback mechanisms where SBFD-UEs report hard constraints (minimum SIC guardband, maximum transmission bandwidth, capability classes) to gNodeBs. This feedback loop enables the network to adjust resource allocation based on actual UE capabilities and interference conditions, resolving the contradiction between achieving high throughput and maintaining reliable full-duplex operation.
Solution Approach 2:
The patent changes key scheduling parameters including SIC guardband width, transmission bandwidth, and resource block allocations based on reported UE constraints. By dynamically adjusting these parameters according to actual UE capabilities and interference levels, the system achieves both high productivity and reliable operation.
2Measurement precision
If UEs report detailed hard constraints for full-duplex scheduling, then resource allocation accuracy improves, but signaling overhead and processing complexity increase
Solution Approach 1:
The patent segments the constraint reporting into distinct categories: minimum SIC guardband requirements, maximum transmission bandwidth limits, and capability class indicators. This segmentation allows the UE to report only the necessary constraint information in an organized manner, improving measurement precision while managing signaling overhead and processing complexity through structured information delivery.
Data Source
AI summary
Techniques pertaining to subband full duplex (SBFD) user equipment (UE) reporting hard constraints on full-duplex scheduling to network nodes are described. Such techniques include establishing full-duplex communication between a UE and a network node such that the UE is able to transmit data to the network node and receive data from the network node simultaneously in time. The techniques further include reporting by the UE to the network node one or more hard constraints on a full-duplex scheduling of communication resources that is performed by the network node for the UE during the full-duplex communication.