Virtual UE HARQ Acknowledgement Codebooks for Faster Downlink Feedback
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Solution Overview
Problem
Wireless communication networks face interference issues due to increased demand for mobile broadband access, leading to degraded performance on downlink and uplink transmissions, which existing technologies have not effectively addressed.
Innovation Solution
Implementing a virtual UE comprising multiple member UEs that cooperate to generate acknowledgement codebooks for downlink transmissions, allowing for separate HARQ acknowledgements to improve data transmission efficiency and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple member UEs cooperate as a virtual UE to generate separate acknowledgement codebooks, then data transmission efficiency is improved through separate HARQ acknowledgements, but device complexity increases due to multiple UEs coordinating and generating separate codebooks
Solution Approach 1:
The patent segments the acknowledgement feedback process by allowing each member UE to generate its own separate acknowledgement codebook based on its individual decoding results. This segmentation enables parallel processing of acknowledgements from multiple UEs, improving overall data transmission efficiency while maintaining manageable complexity through modular codebook generation at each UE
2Loss of time
If separate HARQ acknowledgements are implemented without waiting for transport block decoding, then network performance is improved through faster feedback, but measurement precision deteriorates due to potential decoding errors
Solution Approach 1:
The patent implements preliminary action by having member UEs generate acknowledgement codebooks based on their decoding attempts before the complete transport block is fully decoded by all UEs. This preliminary acknowledgement generation reduces feedback time and enables faster network response, while the base station can still manage retransmissions effectively based on the collected acknowledgement information from multiple UEs
Data Source
AI summary
This disclosure provides systems, methods, and devices for wireless communication that support separate hybrid automatic receipt request (HARQ) acknowledgement by member user equipments (UEs) cooperating as a virtual UE for downlink transmissions. In a first aspect, a virtual UE may detect a downlink transmission, wherein the virtual UE includes two or more member UEs in communication with each other and configured to cooperate in communications with the serving base station. The virtual UE may generate one or more acknowledgement codebooks configured to indicate an acknowledgement status by the virtual UE. The virtual UE may attempt to decode the downlink transmission and report an acknowledgment indicator that reflects the result of the decoding. The acknowledgment indicator includes an acknowledgement state selected from an acknowledgement codebook associated with the member UE. Other aspects and features are also claimed and described.