Adaptive Beam Generation in FD-MIMO Systems
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Solution Overview
Problem
Conventional telecommunications networks face inefficiencies in transmitting control plane information to multiple user devices within a sector, as they rely on fixed antenna beam patterns that do not adapt to the dynamic location and distribution of user equipment, leading to suboptimal coverage and performance.
Innovation Solution
The method involves determining a cluster configuration based on contextual device data, selecting specific antenna elements to generate a beamform that corresponds to this configuration, and transmitting control plane information using these elements, with the ability to switch to alternative configurations if performance drops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed antenna beam patterns are used for transmitting control plane information, then device complexity is reduced, but coverage and performance deteriorate due to inability to adapt to dynamic user equipment distribution
Solution Approach 1:
The patent implements dynamic beamforming by selecting different antenna elements based on real-time user equipment distribution. The system transitions from static fixed beam patterns to dynamic adaptive beam patterns that adjust according to UE location and density, resolving the contradiction between adaptability and complexity through controlled dynamic selection rather than full system reconfiguration
Solution Approach 2:
The system changes operational parameters (antenna element selection, beamforming weights) based on detected UE distribution patterns. By modifying these parameters adaptively rather than redesigning the entire system, the patent achieves improved coverage while maintaining manageable complexity through parameter optimization rather than structural overhaul
2Measurement precision
If all antenna elements are used for transmission, then coverage area is maximized, but transmission precision deteriorates due to lack of directional focus
Solution Approach 1:
The patent segments the antenna array into selectively activated elements based on UE distribution. Instead of using all antenna elements uniformly, the system divides and conquers by activating only the subset of elements needed for current transmission targets, achieving both precision (through focused element selection) and adequate coverage (through strategic element placement)
Solution Approach 2:
The system applies local quality by directing transmission resources precisely where needed based on UE location. Different antenna elements are activated for different spatial regions, creating locally optimized beam patterns that provide high precision targeting while collectively maintaining broad coverage through the coordinated action of multiple localized beams
3Reliability
If cluster configuration is frequently adjusted to track user equipment movement, then coverage performance is improved, but system stability deteriorates due to constant reconfiguration
Solution Approach 1:
The patent implements periodic monitoring and adjustment of cluster configurations rather than continuous real-time reconfiguration. By updating beam configurations at appropriate intervals and only when performance degradation is detected, the system maintains transmission reliability while preserving configuration stability, avoiding unnecessary frequent changes that would disrupt service
Solution Approach 2:
The system employs feedback mechanisms to monitor transmission performance and trigger cluster configuration adjustments only when needed. This feedback-driven approach ensures reliability by maintaining stable configurations during normal operation while enabling adaptive reconfiguration when performance degradation occurs, balancing stability and reliability through condition-based adjustments
Data Source
AI summary
A device, method, and computer-readable medium are provided for transmitting control plane information to user equipment (UE) using a Full Dimension MIMO (FD-MIMO) base station. Contextual device data associated with a plurality of mobile devices is obtained. A cluster configuration for a sector is determined based at least in part on the obtained contextual device data. At least one antenna element in a plurality of antenna elements of the FD-MIMO base station that together generate a beamform that corresponds to the determined cluster configuration is selected based on the determined cluster configuration. Control plane information that is directed to the determined cluster configuration is then transmitted from the selected at least one antenna element.