Relief Antenna Selection and Tilt Control for Base Station Outages
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Solution Overview
Problem
Conventional techniques for addressing communication failures in wireless base station outages fail to select an appropriate relief antenna based on the specific situation, leading to excessive antennas, overlapping coverage areas, and reduced accuracy in optimizing antenna tilts.
Innovation Solution
A control method using a wireless base station control apparatus that selects relief antennas through a combination optimization algorithm based on Deep Reinforcement Learning (DRL) and adjusts antenna tilts to minimize overlapping coverage areas, optimizing communication recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional COC techniques are used to relieve failure areas, then communication recovery is attempted, but appropriate relief antennas cannot be selected according to specific situations
Solution Approach 1:
The patent implements dynamic antenna selection by continuously monitoring failure area conditions and adjusting the relief antenna selection accordingly. The system evaluates multiple candidate antennas and dynamically determines the most appropriate relief antenna based on current situation, rather than using a fixed conventional COC approach.
Solution Approach 2:
The patent changes selection parameters by introducing priority-based antenna sequencing and situation-dependent selection criteria. Instead of uniformly applying conventional COC rules, the system varies selection parameters based on specific failure scenarios, antenna characteristics, and coverage requirements to achieve situation-appropriate relief.
2Area of stationary object
If multiple antennas are selected as relief antennas, then coverage of failure area is improved, but overlapping coverage areas occur and reduce optimization accuracy
Solution Approach 1:
The patent implements feedback mechanisms to monitor and detect overlapping coverage areas between relief antennas. By continuously evaluating coverage overlap, the system provides feedback to adjust tilt angles and antenna selection, preventing excessive overlap that would reduce optimization accuracy while maintaining adequate coverage.
Solution Approach 2:
The patent applies different tilt optimization strategies to different relief antennas based on their specific locations and coverage characteristics. Instead of uniform tilt adjustment, each antenna receives localized optimization tailored to its position relative to the failure area and other relief antennas, reducing overlapping while maintaining coverage.
3Measurement precision
If all antenna combinations are calculated in advance, then optimal relief antenna selection is achieved, but calculation time and complexity increase significantly
Solution Approach 1:
The patent performs preliminary actions by pre-evaluating and ranking antennas based on their inherent characteristics and potential suitability for relief. Instead of calculating all possible combinations in real-time, the system pre-processes antenna data to create priority sequences, enabling faster selection when failures occur while maintaining selection accuracy.
Solution Approach 2:
The patent applies partial action by selecting only the necessary number of relief antennas from the antenna sequence rather than evaluating all possible combinations. The system uses priority-based selection to choose the minimal set of antennas needed for effective coverage, reducing calculation time while achieving sufficient optimization accuracy.
Data Source
AI summary
A control method executed by a control apparatus that determines a relief antenna for relieving communication in a failure area and a tilt of the relief antenna, the control method including acquiring an antenna sequence in which a plurality of antennas are arranged in descending order of priority in accordance with a policy function, and selecting the antennas as relief antennas in order from a head of the antenna sequence until a predetermined condition is satisfied, and calculating tilts of the relief antennas selected in the selecting of the relief antennas.