UE Duplexing Parameter Feedback in Turbo HARQ
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Solution Overview
Problem
Current wireless communication systems lack the ability to effectively convey additional information, such as duplexing configurations, beyond modulation and coding scheme values in Turbo Hybrid Automatic Repeat Request (HARQ) feedback, which limits their ability to optimize duplex configurations for improved performance.
Innovation Solution
Incorporating additional duplexing parameters like full duplex configurations, gap periods, and self-interference levels into Turbo HARQ feedback messages, allowing user equipment (UE) to suggest optimal duplex settings to the base station for subsequent communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If only delta MCS value is included in Turbo HARQ feedback, then feedback message size is kept small, but duplexing configuration information cannot be conveyed to base station
Solution Approach 1:
The patent combines duplexing configuration information with existing HARQ feedback by merging it into the same feedback message structure. The UE includes both HARQ acknowledgment information and duplexing parameter recommendations in a unified feedback transmission to the base station, eliminating the need for separate signaling channels.
Solution Approach 2:
The feedback message is designed to serve multiple functions simultaneously: it conveys HARQ acknowledgment status, channel quality information, and duplexing configuration recommendations. This multi-functional approach allows the same message structure to handle diverse information types without requiring separate dedicated channels for each.
2Adaptability or versatility
If duplexing parameters are added to HARQ feedback, then base station can optimize duplex configuration, but feedback processing complexity increases
Solution Approach 1:
The UE performs preliminary analysis of channel conditions and duplexing performance, then formulates optimization recommendations in advance before sending the feedback message. The base station receives pre-processed recommendations that require minimal additional processing, as the complex analysis has already been performed by the UE.
Solution Approach 2:
The UE autonomously monitors its own channel conditions, evaluates duplexing performance, and generates self-recommendations for optimization. This self-service approach reduces the processing burden on the base station, as the feedback contains ready-made recommendations rather than raw data requiring extensive analysis.
3Productivity
If real-time duplex configuration feedback is implemented, then communication performance improves, but signaling overhead increases
Solution Approach 1:
The patent merges duplexing configuration feedback with existing HARQ feedback transmissions, so that both types of information are conveyed in a single message. This combining approach avoids the need for separate dedicated signaling channels, thereby reducing overall signaling overhead while maintaining real-time feedback capability.
Data Source
AI summary
Methods, systems, and devices for wireless communication are described. A user equipment (UE) may monitor for one or more downlink transmissions from a base station based at least in part on a grant identifying resources for the one or more downlink transmissions. The UE may determine feedback information for each of the one or more downlink transmissions based at least in part on the monitoring. The UE may identify, based at least in part on the monitoring, one or more duplexing parameters to be requested to the base station for subsequent communications between the UE and the base station, the one or more duplexing parameters pertaining to operation of the UE in at least one of a full duplex communications mode or a half duplex communications mode. The UE may transmit a feedback message indicating the feedback information and the one or more duplexing parameters to the base station.