User Equipment Beam Disappearance Detection and Notification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In 5G communication systems, forming beams with super multi-element antennas in user equipment is challenging, particularly during time division duplex (TDD) communication, as existing methods fail to consider interference from other base stations, leading to suboptimal precoding and communication quality issues.
Innovation Solution
The user equipment detects beam disappearance states and transmits notifications to the base station, which then performs beam re-detection and adjusts transmission power based on interference measurements, using multi-element antennas for two-stage beamforming to form beams that minimize interference from other base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beamforming is performed using super multi-element antennas in user equipment, then communication quality should be improved, but interference from other base stations increases and precoding becomes suboptimal
Solution Approach 1:
The base station measures interference from other base stations and feeds back this information to the user equipment. The user equipment then adjusts its beamforming weights based on this feedback to minimize interference while maintaining communication quality.
Solution Approach 2:
The system dynamically adjusts beamforming parameters (weights, directions) based on measured interference conditions. The base station modifies transmission parameters according to interference measurements to optimize communication while reducing harmful effects on other cells.
2Device complexity
If existing beamforming methods are used without considering other base stations, then device complexity is reduced, but communication quality deteriorates due to suboptimal precoding
Solution Approach 1:
The base station acts as an intermediary that measures interference conditions and communicates this information to the user equipment. This mediator approach allows the user equipment to perform simpler local beamforming adjustments based on the provided interference information rather than performing complex global optimization.
Data Source
AI summary
Provided is a technology capable of securing satisfactory communication quality. A communication system includes a user equipment, and a base station configured to be connected to the user equipment to perform radio communication with the user equipment. The user equipment performs radio communication with a beam. When the user equipment detects a beam disappearance state being a state incapable of maintaining communication quality with the base station, the user equipment transmits a notification of the beam disappearance state with a beam having a wider half width than a half width before detection of the beam disappearance state.