Dynamic MIMO Layer Configuration via Antenna Switching Feedback
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Solution Overview
Problem
In 5G NR systems, the maximum number of MIMO transmission layers configured by the base station does not match the antenna switching requirements of the terminal, leading to reduced reliability of communication links and inefficient power usage.
Innovation Solution
A method where a network device receives switching reporting information from a terminal device to reconfigure the maximum number of MIMO transmission layers, ensuring they align with the terminal's antenna switching configuration, thereby improving CSI estimation reliability and conserving system resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station configures a fixed maximum number of MIMO transmission layers, then the configuration is simple and stable, but it does not match the terminal's antenna switching requirements, reducing communication link reliability
Solution Approach 1:
The patent makes the maximum number of MIMO transmission layers dynamic by allowing the terminal to report antenna switching configuration information and the base station to adjust the layer configuration accordingly. This enables the system to adapt to different antenna switching scenarios while maintaining configuration simplicity through automated reporting and adjustment mechanisms.
Solution Approach 2:
The patent implements a feedback mechanism where the terminal reports its antenna switching configuration to the base station, which then uses this feedback to appropriately configure the maximum number of MIMO transmission layers. This closed-loop feedback ensures the configuration matches terminal requirements without manual intervention.
2Productivity
If the terminal uses antenna switching configuration to meet its requirements, then the terminal can optimize its performance, but the base station's MIMO transmission layer configuration does not limit or match this switching configuration, leading to inefficient power usage
Solution Approach 1:
The patent changes the parameter of maximum MIMO transmission layers based on the terminal's antenna switching configuration. When the terminal switches antennas, the base station adjusts the MIMO layer configuration to match, ensuring optimal performance while avoiding unnecessary power consumption from unused transmission layers.
Data Source
AI summary
A method for adjusting a number of multiple in multiple out (MIMO) transmission layers of a terminal includes: receiving, by a network device, switching reporting information of an antenna switching configuration sent by a terminal device; and reconfiguring, by the network device, a maximum number of MIMO transmission layers supported by the terminal device according to the switching reporting information.