Antenna Panel Displacement for 2L/4L MIMO Mode Switching
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Solution Overview
Problem
User equipment (UE) with multiple antenna panels faces challenges in efficiently switching between two-layer (2L) and four-layer (4L) modes for MIMO communication, limiting its ability to engage in MIMO communication with either a single or multiple network nodes, which affects network performance and efficiency.
Innovation Solution
The UE dynamically adjusts its antenna panels through displacement operations, receiving rank information change signals and transitioning between 2L and 4L modes with controlled transition times, enabling efficient polarization MIMO communication with one or more network nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE uses multiple antenna panels for MIMO communication, then the network throughput and efficiency are improved, but the complexity of switching between 2L and 4L modes increases
Solution Approach 1:
The patent implements dynamic switching between 2L and 4L MIMO modes based on real-time channel conditions and network requirements. The UE and network node can dynamically adjust the MIMO layer configuration, transitioning between two-layer and four-layer modes as needed to optimize throughput while managing complexity through adaptive control mechanisms.
Solution Approach 2:
The patent changes the MIMO configuration parameter (rank indicator) to switch between 2L and 4L modes. By adjusting this key parameter based on channel quality indicators and network conditions, the system can optimize throughput without permanently increasing device complexity, as the complexity is managed through parameter adjustment rather than structural changes.
2Productivity
If the UE switches between 2L and 4L modes frequently, then the network efficiency is improved, but the transition time and signal interruption increase
Solution Approach 1:
The patent prepares for mode transitions by maintaining configuration information for both 2L and 4L modes in advance. The UE and network node exchange signaling information that pre-configures the alternative mode parameters, so when a mode switch is needed, the transition can occur more quickly without extensive reconfiguration, thereby reducing transition time and signal interruption.
3Device complexity
If the UE maintains fixed antenna panel configuration, then the device complexity is reduced, but the adaptability to different MIMO modes decreases
Solution Approach 1:
The patent designs the antenna panel system to be universal and multi-functional, capable of operating in both 2L and 4L MIMO modes using the same physical antenna structure. The antenna panels are configured to support multiple functions through software control and signal processing, allowing the hardware to remain relatively simple while achieving high adaptability through flexible configuration and mode switching mechanisms.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a rank information change signal associated with rules for switching between a two-layer (2L) mode and a four-layer (4L) mode via an antenna panel displacement operation. The UE may transmit a transition time parameter associated with an amount of time for transitioning between the 2L mode and the 4L mode. Numerous other aspects are described.