Configurable HARQ Feedback Modes for Wireless Reliability
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently reporting hybrid automatic repeat request (HARQ) feedback and channel information, leading to suboptimal transmission reliability and retransmission strategies due to independent reporting mechanisms.
Innovation Solution
The implementation of configurable HARQ feedback modes that allow for standalone or bundled reporting of HARQ feedback with channel information, using enhanced signaling techniques to adapt transmission parameters based on channel conditions, enabling more effective retransmissions and improved reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If HARQ feedback and channel information are reported independently, then the reporting mechanism is simple, but transmission reliability is suboptimal
Solution Approach 1:
The patent combines HARQ feedback and channel information into a single bundled report transmitted on the same uplink resource. This merging allows the base station to simultaneously receive both feedback types, enabling more informed retransmission decisions while maintaining a relatively simple reporting structure through unified transmission resources.
2Reliability
If HARQ feedback is transmitted with channel information bundling, then transmission reliability improves, but uplink control resource requirements increase
Solution Approach 1:
The patent merges HARQ feedback and channel information into a single bundled transmission, allowing both information types to be conveyed in one uplink control resource allocation. This approach efficiently utilizes resources by combining multiple feedback streams rather than requiring separate dedicated resources for each.
3Productivity
If HARQ feedback and channel information are reported separately, then resource allocation is straightforward, but retransmission strategy optimization is limited
Solution Approach 1:
The patent combines HARQ feedback and channel information into a single bundled report, enabling the base station to simultaneously receive both feedback types and make more informed retransmission decisions. This merging allows for optimized retransmission strategies that consider both acknowledgment status and channel conditions together.
4Adaptability or versatility
If standalone HARQ feedback reporting is used, then uplink control signaling is reduced, but adaptive transmission parameter adjustments are limited
Solution Approach 1:
The patent merges HARQ feedback and channel information into a single bundled transmission, ensuring that channel information is not lost while maintaining efficient uplink signaling. This combination allows the base station to receive both acknowledgment status and channel state for comprehensive transmission parameter adaptation.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A communications device may receive a downlink control message that supports indicating multiple modes for reporting hybrid automatic repeat request feedback, including a first mode for reporting hybrid automatic repeat request feedback and channel information according to a bundled configuration and a second mode for reporting hybrid automatic repeat request feedback according to a standalone configuration. The communications device may use the downlink control message to determine a mode for transmitting hybrid automatic repeat request feedback. The communications device may also transmit either bundled hybrid automatic repeat request feedback and channel information or standalone hybrid automatic repeat request according to the determined mode.