Antenna Panel Switching Control for Wireless Communication
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Solution Overview
Problem
Antenna switching in wireless communication systems, particularly in LTE and NR, can disrupt normal transmission processing due to resource imbalances and fluctuations, leading to adverse effects on communication between terminal devices and base stations.
Innovation Solution
A communication device with multiple antenna panels, each equipped with transmission and reception analogue circuits, is controlled by a processor to perform antenna switching based on indications from the base station, allowing for efficient resource allocation and minimizing disruptions by using different time resources for each panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If antenna switching is performed in a terminal device to transmit measurement signals corresponding to the number of antennas, then downlink channel quality estimation is improved, but normal data transmission and reception is disrupted
Solution Approach 1:
The terminal device is divided into multiple antenna panels, where each panel independently performs antenna switching for measurement signal transmission. This segmentation allows different panels to operate independently, so that measurement operations in one panel do not disrupt normal data transmission in other panels.
Solution Approach 2:
Multiple antenna panels are combined to work simultaneously, with each panel handling both measurement signal transmission and normal data transmission. By merging the capabilities of multiple panels, the system achieves both accurate channel quality estimation and continuous data transmission without mutual interference.
2Adaptability or versatility
If antenna switching is performed in one antenna panel, then measurement signal transmission is enabled, but transmission processing in the same panel is interrupted
Solution Approach 1:
The antenna system is segmented into multiple independent panels, allowing measurement operations and data transmission operations to be separated across different panels. This enables parallel execution of measurement signal transmission and normal transmission processing without mutual interruption.
Solution Approach 2:
By distributing measurement signal transmission across multiple antenna panels, the system ensures that while one panel performs measurement operations, other panels continue normal data transmission without interruption. This maintains continuous useful action across the entire system, preventing overall throughput degradation.
Data Source
AI summary
A mechanism capable of more appropriately performing antenna switching is provided. A communication device includes: a plurality of antenna panels (60) that each includes one or more antennas (51), one or more transmission analogue circuits (54) for transmitting a signal by using the antenna, and one or more reception analogue circuits (55) for receiving a signal by using the antenna; and a control section (240) that controls, on the basis of indication from a base station, the antenna panel in which antenna switching for switching of connection between the antenna and the transmission analogue circuit is to be performed among a plurality of the antenna panels, and a first resource on which the antenna switching in the corresponding antenna panel is to be performed.