Dynamic SSB Beam Parameter Control for Coverage Gap Signal Strength
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Solution Overview
Problem
Existing approaches fail to adequately address coverage gaps and improve signal strength for priority user devices and those reporting signal strengths deviating from historical values, without the costly and disruptive solution of building additional cell towers.
Innovation Solution
A beam management system modifies beam parameters, such as phase and amplitude, based on user device location and signal strength, to enhance coverage and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam parameters are modified to improve signal strength for priority user devices, then signal strength is improved, but system complexity increases
Solution Approach 1:
The beam management system dynamically adjusts beam parameters (phase, amplitude) based on real-time user device locations and signal strength requirements. The system transitions from static beam configuration to dynamic adaptation, allowing beam patterns to be modified on-demand to serve priority user devices while maintaining service for other users, thus improving signal strength without permanently increasing system complexity.
Solution Approach 2:
The system changes physical parameters of the beam (phase shift, amplitude) to redirect and reshape beam patterns toward priority user devices. By modifying these parameters dynamically based on user device reports and location data, the system improves signal strength for specific users without requiring additional infrastructure or permanent system redesign.
2Area of stationary object
If beam parameters are adjusted to cover more user devices, then coverage area is improved, but signal strength for individual devices may decrease
Solution Approach 1:
The beam management system applies different beam parameters to different spatial regions or user groups. Priority user devices receive enhanced beam focus with optimized phase and amplitude settings, while other areas maintain standard coverage. This local differentiation allows the system to improve signal strength for specific users without compromising overall coverage area, as each region receives appropriately tailored beam characteristics.
Data Source
AI summary
Systems and methods are provided to address issues related to poor radio conditions (e.g., SS-RSRP/SS-RSRQ/SS-SINR) associated with poor coverage for user devices (e.g., user equipment (UEs)) positioned between Synchronization Signal Block (SSB) beams emitted from a cell tower. Specifically, Next Generation Node B (gNB) may identify the location of the user devices (reporting poor signal strength due to poor radio conditions) based on angle or arrival and/or timing advance. Systems and methods further include controlling a phase and amplitude of the SSB beam(s) serving the user device to improve the signal strength of these user devices experiencing poor radio conditions, until the signal strength is within/above target threshold value(s). In this manner, user coverage is improved, with the option to prioritize premium subscribers, without the need for employing a more expensive alternative (e.g., building additional cell sites and towers) for improving user coverage.