HARQ-ACK Uplink Resource Scheduling for Control Channel Repetition
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Solution Overview
Problem
Existing wireless communication systems face challenges in ensuring reliable and efficient transmission of control channels, particularly in environments with varying signal quality and interference, which can lead to dropped connections and reduced data throughput.
Innovation Solution
Implementing control channel repetition across multiple transmission points (TRPs) to enhance reliability and stability, utilizing advanced protocol stacks and beam management techniques to optimize signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If control channel repetition is implemented across multiple TRPs, then reliability is improved, but device complexity increases
Solution Approach 1:
The control channel transmission is segmented across multiple Transmission Reception Points (TRPs), where each TRP transmits a portion of the control channel repetition. This segmentation allows the system to achieve diversity gain and improved reliability without requiring a single complex transmission point, as each TRP can be independently managed and optimized.
Solution Approach 2:
The patent introduces spatial dimensionality by transmitting control channel repetitions across multiple TRPs located at different physical positions. This spatial diversity adds a new dimension to the transmission system, enabling the receiver to combine signals from multiple locations and overcome fading or blockage that would affect a single transmission path.
2Stability of the object's composition
If control channel repetition is implemented across multiple TRPs, then stability is improved, but device complexity increases
Solution Approach 1:
The system prepares for potential transmission failures by pre-configuring multiple TRPs to transmit control channel repetitions. This beforehand cushioning ensures that if one transmission path fails due to fading, interference, or blockage, alternative paths are already in place to maintain connection stability without requiring complex real-time recovery mechanisms.
Solution Approach 2:
The patent utilizes configurable parameters such as repetition factor, TRP selection, and resource allocation to adapt the transmission system to different channel conditions. By changing these parameters dynamically, the system can optimize for stability in varying environments without permanently increasing hardware complexity.
3Productivity
If advanced protocol stacks and beam management techniques are utilized, then data throughput is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic beam management where the transmission beam direction and characteristics are adjusted in real-time based on channel conditions and receiver feedback. This dynamic adaptation allows the system to optimize data throughput through advanced protocol stacks without requiring permanently complex hardware, as the complexity is managed through flexible software-controlled parameter adjustments.
Data Source
AI summary
A wireless device determines a first uplink resource for transmission of a first hybrid automatic repeat request acknowledgement (HARQ-ACK) in a first time slot. The wireless device may also receive at least one repetition of downlink control information (DCI) via at least one monitoring occasion of monitoring occasions. In such embodiments, the DCI may indicate a second uplink resource for transmission of a second HARQ-ACK in the first time slot. The wireless device may also transmit the second HARQ-ACK in a second time slot after the first time slot and via an uplink resource.