Antenna Panel Status Indication via Feedback Alignment
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Solution Overview
Problem
In new radio (NR) systems, inconsistencies in antenna panel status between terminal devices and network devices lead to transmission delays and poor signal/channel transmission quality due to undefined scheduling times and differing understandings of panel states.
Innovation Solution
An antenna panel status indication method where the terminal device sends first antenna panel status information, receives response information, and determines its effectiveness, aligning with the network device's understanding, thereby ensuring consistent status alignment and reducing transmission delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the terminal device reports panel status information to the network device, then the network device can understand the panel status, but a specific scheduling time is not defined causing inconsistent understanding between terminal and network device
Solution Approach 1:
The network device sends response information to the terminal device after receiving panel status information. This feedback mechanism confirms that the status information has been successfully received and understood, ensuring both devices have consistent understanding before scheduling transmission, thereby eliminating the time loss caused by undefined scheduling moments.
Solution Approach 2:
The terminal device sends panel status information before the network device schedules signal/channel transmission. This preliminary action ensures the network device has accurate status information in advance, allowing it to make informed scheduling decisions and avoid transmission delays caused by status mismatches.
2Productivity
If the network device schedules signal/channel transmission based on panel status information, then transmission efficiency improves, but transmission quality deteriorates due to undefined timing
Solution Approach 1:
The response information from the network device confirms successful receipt of panel status information, providing a timing reference that ensures both devices operate with consistent status understanding. This feedback mechanism maintains transmission quality by preventing scheduling based on outdated or mismatched status information.
Solution Approach 2:
Panel status information is exchanged and confirmed before the network device schedules transmission. This preliminary status alignment ensures that when transmission occurs, both devices have synchronized understanding of panel availability, maintaining high transmission quality while preserving efficiency.
3Adaptability or versatility
If the terminal device activates an inactive panel for transmission, then transmission capability is maintained, but preparation time increases from μs level to 2-3 μs level
Solution Approach 1:
The terminal device proactively reports panel status changes to the network device before transmission is scheduled. This preliminary notification allows the network device to adjust scheduling decisions, avoiding situations where inactive panels would need to be activated under tight timing constraints, thus reducing preparation time requirements.
Solution Approach 2:
The network device receives feedback about panel status and uses this information to make informed scheduling decisions. By understanding which panels are active and ready for transmission, the network device can schedule transmissions that utilize already-active panels, avoiding the 2-3 μs activation delay.
Data Source
AI summary
This application provides example antenna panel status indication methods and apparatuses. One example method includes sending first antenna panel status information, where the first antenna panel status information indicates a status of at least one antenna panel. Response information of the first antenna panel status information can then be received. It can then be determined, based on the response information, that the status of the at least one antenna panel takes effect.