3D Beamforming Antenna Tilt Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing beamforming solutions in wireless communication systems use a fixed downward tilting angle, which limits the ability to adjust both vertical and horizontal beam directions, leading to reduced signal strength for user equipment (UE) off the main lobe and negative effects on interference coordination between cells.
Innovation Solution
A method and apparatus for three-dimensional beamforming that maps vertical virtual antenna ports to physical antenna ports, transmits reference signals, and determines a tilting vector based on feedback from user equipment to adjust antenna tilting, allowing for user-specific vertical and horizontal beam adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed downward tilting angle is used in the vertical direction, then interference with neighboring cells is reduced and system throughput is enhanced, but receiving power is significantly decreased for user equipment deviating from the main lobe direction
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed downward tilting angle to a dynamic beamforming approach where the tilting angle is adjusted per user equipment based on channel state information. The base station determines user-specific tilting angles to optimize both receiving power and interference management dynamically, rather than using a static configuration for all users.
Solution Approach 2:
The patent implements local quality by applying different tilting angles to different user equipment rather than a uniform fixed angle. Each user receives a customized beamforming configuration tailored to their specific channel conditions and spatial location, allowing optimal signal strength for each user while maintaining overall system performance.
2Object-affected harmful factors
If a fixed beam is provided in the vertical direction for each user equipment, then interference with neighboring cells is reduced, but beam scheduling and interference coordination between neighboring cells in the vertical direction are negatively affected
Solution Approach 1:
The patent uses dynamics by implementing adaptive beam scheduling where tilting angles are adjusted based on real-time channel state information and scheduling requirements. This allows the system to dynamically coordinate beams across neighboring cells, improving interference management while maintaining scheduling flexibility.
Solution Approach 2:
The patent applies parameter changes by modifying the tilting angle parameter based on channel conditions, user location, and scheduling requirements. This enables the system to adapt beamforming parameters dynamically, improving both interference coordination and scheduling versatility compared to fixed parameter approaches.
3Reliability
If mapping of vertical virtual antenna ports to physical antenna ports is implemented with user-specific tilting adjustment, then signal strength is enhanced for user equipment, but device complexity increases
Solution Approach 1:
The patent applies parameter changes by adjusting tilting angle parameters based on channel state information feedback from user equipment. This allows signal strength optimization through parameter adaptation without requiring complex hardware modifications, achieving improved reliability with manageable complexity increases.
Data Source
AI summary
Embodiments of the disclosure provide methods and apparatuses for three-dimensional beamforming. The method may comprise: mapping vertical virtual antenna ports to physical antenna ports based on vertical reference signals to obtain mapped vertical reference signals; transmitting the mapped vertical reference signals to a user equipment; receiving a tilting indicator from the user equipment, wherein the tilting indicator is obtained based on the mapped vertical reference signals at the user equipment; determining a tilting vector based on the received tilting indicator, wherein the tilting vector indicates adjustment for traffic data in antenna vertical tilting; and adjusting traffic data with the tilting vector.