Joint RRM Entity for Dynamic Access Mode Control
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Solution Overview
Problem
Multi-mode base stations, such as dual-mode femtocells, often experience inefficient resource use due to independent radio resource management (RRM) entities for each cell, leading to imbalances in loading and poor Quality of Service (QOS) when access modes are not optimally configured.
Innovation Solution
Implementing a joint RRM entity that dynamically controls the access modes of cells based on current operating conditions, such as activity levels and loading, to adjust between open, hybrid, and closed access modes, ensuring global control and optimal resource allocation across cells operating with different radio access technologies and frequency sub-bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If independent radio resource management entities are used for each cell, then each cell can be managed autonomously, but resource allocation becomes inefficient and loading imbalances occur
Solution Approach 1:
The patent merges multiple independent RRM entities into a single joint RRM entity that manages multiple cells operated by the same base station. This joint entity coordinates resource allocation across cells, preventing resource wastage and loading imbalances while maintaining autonomous management capabilities through coordinated control.
2Device complexity
If access modes are not dynamically controlled, then configuration is simple, but performance and QOS deteriorate under varying operating conditions
Solution Approach 1:
The patent implements dynamic access mode control where the joint RRM entity automatically adjusts access modes (open, closed, hybrid) based on real-time operating conditions such as cell loading and user distribution. This allows the system to adapt to varying conditions and maintain optimal performance without manual reconfiguration.
Solution Approach 2:
The system incorporates feedback mechanisms where the joint RRM entity continuously monitors operating conditions and uses this information to make informed decisions about access mode configuration, ensuring service quality is maintained under different traffic and user distribution scenarios.
3Productivity
If joint radio resource management is implemented, then resource allocation efficiency improves, but system complexity increases
Solution Approach 1:
The joint RRM entity is designed to perform multiple functions including access mode control, resource allocation, and load balancing across multiple cells. By consolidating these functions into a single multi-functional entity, the system achieves efficient resource management without proportionally increasing complexity.
Data Source
AI summary
Method, base station and computer program product for controlling access to the base station, the base station being arranged to serve a zone, the zone comprising a first cell implementing an access mode as one of an open access mode, a hybrid access mode, and a closed access mode. Operating conditions of the zone served by the base station are determined and then the access mode of the first cell is controlled based on the determined operating conditions of the zone served by the base station.