Acknowledgement Group Indication for Wireless Signaling Overhead
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Solution Overview
Problem
High-frequency wireless communication systems, particularly those using millimeter waves, face challenges in efficiently handling acknowledgement information due to the complexity of beamforming and timing issues, leading to increased signaling overhead and complications in managing large numbers of acknowledgement processes.
Innovation Solution
A method and system for transmitting acknowledgement signaling using a group indication in wireless communication networks, where a control information message includes an acknowledgement signaling group indication to manage multiple acknowledgement processes efficiently, reducing overhead by indicating whether processes are in use or not, and utilizing a codebook based on active processes, allowing for low signaling overhead and flexible configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large number of acknowledgement processes are managed individually, then the reliability of data transmission is improved, but the signaling overhead and system complexity increase significantly
Solution Approach 1:
The patent combines multiple individual acknowledgement processes into groups, where each group is managed by a single group indication message. This merging approach maintains the reliability of tracking multiple acknowledgement processes while reducing the complexity of managing each process individually through separate signaling.
Solution Approach 2:
The group indication message serves multiple functions simultaneously: it acknowledges multiple processes, indicates their status, and provides grouping information. This multi-functionality reduces the overall signaling overhead while maintaining comprehensive acknowledgement coverage for multiple processes.
2Measurement precision
If individual acknowledgement processes are tracked separately, then the precision of transmission status monitoring is improved, but the signaling overhead increases
Solution Approach 1:
Multiple individual acknowledgement signals are merged into a single group indication message that conveys the status of multiple processes simultaneously. This reduces the quantity of signaling messages while maintaining precise monitoring of each individual process status within the group.
Solution Approach 2:
The patent segments the large number of acknowledgement processes into manageable groups, where each group can be monitored efficiently. This segmentation allows precise tracking of individual processes while reducing overall signaling overhead through grouped management.
3Reliability
If beamforming is applied with small beams for high-frequency communication, then the signal quality is improved, but the timing synchronization and system complexity worsen
Solution Approach 1:
The system performs preliminary beam management and timing alignment procedures to establish synchronized beamforming operations before data transmission. This preliminary action ensures that small beams maintain proper timing synchronization, preventing time loss while preserving signal quality improvements.
Solution Approach 2:
The acknowledgement grouping mechanism provides feedback on transmission status that helps maintain timing synchronization in beamformed communications. By monitoring and reporting acknowledgement status efficiently, the system can adjust timing parameters to compensate for synchronization issues arising from small beam operations.
Data Source
AI summary
There is disclosed a method of operating a wireless device in a wireless communication network, the method comprising transmitting acknowledgement signaling based on a received control information message. The control information message includes an acknowledgement signaling group indication indicating, for each of a group of acknowledgement processes, an acknowledgement mode. The disclosure also pertains to related devices and methods.