Base Station Notification for Idle UE Power Adjustment
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Solution Overview
Problem
In self-organizing networks (SON), adjusting the transmission power of base stations can lead to coverage holes for idle user equipment (UE) at the boundary of signal coverage, causing connectivity issues or increased interference, as the exact location of idle UE is unknown until connection is requested, and existing methods fail to effectively manage these issues.
Innovation Solution
A method and system that trigger specific notification procedures for vicinity base stations to transmit messages to idle UE, allowing them to measure signal interference or strength before adjusting transmission power, enabling the SON controller to optimize power settings based on feedback from affected UEs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the transmission power of a base station is decreased to enhance energy efficiency, then energy consumption is reduced, but idle user equipment at the boundary of signal coverage may lose connectivity and create coverage holes
Solution Approach 1:
The system performs preliminary actions by notifying affected idle UEs before the base station actually adjusts its transmission power. The notification is sent in advance to allow UEs to perform measurements and prepare for potential reselection, ensuring connectivity is maintained during power reduction.
Solution Approach 2:
The system establishes a feedback mechanism where notified idle UEs perform measurements (signal strength, interference) and feed back this information to the network. This feedback loop enables the network to optimize power settings based on actual UE conditions, balancing energy efficiency with connectivity reliability.
2Area of stationary object
If the transmission power of a base station is increased to maintain coverage, then signal coverage is improved, but interference to idle user equipment increases
Solution Approach 1:
The system sends notifications to potentially affected idle UEs before the base station increases its transmission power. This allows UEs to perform measurements in advance and prepare for potential reselection, enabling the network to optimize power settings while minimizing interference to other UEs.
Solution Approach 2:
The system establishes a feedback mechanism where notified idle UEs perform measurements (signal strength, interference) and feed back this information to the network. This feedback loop enables the network to optimize power settings based on actual UE conditions, balancing coverage expansion with interference management.
3Reliability
If the location of idle user equipment is tracked to manage coverage holes, then connectivity is improved, but network resources are wasted
Solution Approach 1:
The system performs preliminary identification of potentially affected idle UEs by using base station information (location, coverage area) to predict which UEs will be impacted by power changes. This preliminary action allows targeted notifications only to relevant UEs, avoiding unnecessary tracking and resource consumption for UEs that won't be affected.
Solution Approach 2:
The system applies different handling strategies to different idle UEs based on their local conditions. Instead of uniformly tracking all idle UEs, the system identifies and notifies only those UEs that are actually affected by the base station power adjustment, optimizing resource usage by focusing on local quality issues.
Data Source
AI summary
A communication method, an electronic device and a system for managing transmission of notification messages are provided. The method recognizes a transmission power of a base station is to be increased or decreased according to information of the base station. If the transmission power of the base station is to be increased, a first notification procedure is triggered to have one or more vicinity base stations of the base station transmitting a first message. And if the transmission power of the base station is to be decreased, a second notification procedure is triggered to have the base station transmitting a second message.