5G Panel Change Signal Coordination for Millimeter Wave Stability
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Solution Overview
Problem
In 5G communication systems, particularly in the millimeter wave band, there is a challenge in stabilizing signal reception and transmission when the reception panel of a terminal device needs to be changed, which affects data transfer rates and transmission distances due to high path loss and attenuation.
Innovation Solution
An operating method is introduced where a base station receives a user equipment capability signal with panel-related information, determines if a panel change is necessary, and transmits a panel change signal to the terminal, which then changes its reception panel based on the signal, including information about the start and end times or duration of the panel change.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the reception panel of a terminal device is changed to maintain beam alignment in millimeter wave communication, then the transmission distance and data transfer rate are improved, but the signal reception stability deteriorates during the panel switching process
Solution Approach 1:
The base station determines the optimal reception panel for the terminal before the panel switching is executed. The terminal is instructed to switch panels in advance of when the beam alignment is needed, ensuring that the panel change is completed before data transmission begins, thus maintaining both high data transfer rates and signal reception stability
Solution Approach 2:
The patent implements dynamic panel switching where the terminal device can dynamically change its reception panel based on real-time beam alignment requirements. The base station coordinates this dynamic switching by providing advance instructions, allowing the system to adapt to changing communication conditions while maintaining signal stability
2Length of stationary object
If a panel change signal is transmitted to instruct terminal to switch reception panels, then the beam alignment and transmission distance are improved, but the system complexity increases due to additional signaling
Solution Approach 1:
The patent utilizes existing uplink communication channels and message structures to convey panel switching instructions, rather than creating dedicated downlink control channels. The base station embeds panel change instructions within regular uplink grant messages or other existing signaling frameworks, reducing system complexity while achieving the desired panel switching functionality
Solution Approach 2:
The terminal device autonomously determines which reception panel to switch to based on instructions from the base station, without requiring complex coordination protocols. The terminal uses its own capability information and the base station's beam alignment requirements to self-determine the optimal switching target, simplifying the overall system architecture
3Adaptability or versatility
If the terminal switches reception panel during ongoing communication, then the adaptability to beam changes is improved, but the communication interruption time increases
Solution Approach 1:
The base station provides panel switching instructions in advance, allowing the terminal to prepare for the panel change before it is executed. This preliminary instruction phase enables the terminal to switch panels during idle periods or between data transmissions, minimizing communication interruption time while maintaining high adaptability to beam changes
Solution Approach 2:
The patent implements rapid panel switching mechanisms where the terminal can quickly transition between reception panels using pre-configured panel settings and beam information. The switching operation is optimized to complete in minimal time by skipping unnecessary configuration steps, thus reducing communication interruption while maintaining adaptability
Data Source
AI summary
An operating method of a base station includes receiving, from a terminal, a user equipment (UE) capability signal including panel-related information of the terminal, determining whether to generate a panel change signal based on the panel-related information, determining a panel change of the terminal based on the panel-related information when it is determined to generate the panel change signal, and transmitting, to the terminal, the panel change signal including information regarding the panel change.