Joint RAN-DAS SON Entity for Network Optimization
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Solution Overview
Problem
Existing telecommunications systems struggle with joint management and optimization of radio access networks (RAN) and distributed antenna systems (DAS), leading to unexpected impacts on system performance due to separate optimization processes.
Innovation Solution
A joint RAN-DAS self-optimizing network (SON) entity is introduced, which is communicatively coupled to the DAS head-end unit and RAN nodes. This entity receives operations and management parameters from both systems, determines target values for optimal optimization settings, and adjusts parameters such as uplink/downlink gain and power allocation to optimize coverage, capacity, and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate DAS SON unit is used for DAS optimization, then DAS can be independently optimized, but unexpected impact on RAN node performance occurs and joint optimization is impossible
Solution Approach 1:
The patent merges the DAS SON unit with the RAN node to form an integrated optimization entity. This allows the system to simultaneously optimize both DAS and RAN parameters without unexpected interactions, as the unified SON unit can coordinate changes across both systems while maintaining independent optimization capabilities through modular architecture.
2Productivity
If configuration changes are made to RAN nodes, then RAN performance can be improved, but unexpected impact on DAS operation occurs
Solution Approach 1:
The integrated SON unit implements feedback mechanisms that continuously monitor both RAN and DAS performance metrics. When configuration changes are made to improve RAN performance, the feedback loop detects any negative impact on DAS operation and triggers compensatory adjustments, ensuring system-wide stability while achieving performance improvements.
3Productivity
If configuration changes are made to DAS, then DAS performance can be improved, but unexpected impact on RAN node performance occurs
Solution Approach 1:
The unified SON unit monitors RAN performance metrics in real-time and provides feedback when DAS configuration changes cause unexpected impacts. This enables automatic compensation through coordinated RAN parameter adjustments, allowing DAS performance optimization while maintaining RAN stability.
4Productivity
If joint optimization is implemented through integrated SON entity, then system-wide performance can be optimized, but complexity of management increases
Solution Approach 1:
The integrated SON unit employs segmentation by dividing optimization functions into modular components that can be independently configured and managed. This allows joint optimization of RAN and DAS while maintaining manageable complexity through organized functional modules that can be activated or deactivated based on specific optimization needs.
Data Source
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AI summary
Certain features relate to systems and methods for jointly optimizing a radio access network (RAN) and distributed antenna system (DAS). A joint RAN-DAS self-optimizing network (SON) entity can determine target operations and management parameters based on operations and management parameters specific to the DAS and operations and management parameters specific to the RAN. The joint RAN-DAS-SON entity can optimize the RAN and DAS using the target operations and management parameters. Jointly optimizing the RAN and the DAS can improve the capacity characteristics, coverage characteristics, or the performance characteristics of the RAN and DAS. In some aspects, the joint RAN-DAS-SON entity can optimize the RAN and DAS by re-allocating power levels of downlink signals transmitted by remote units of the DAS to compensate for underutilized carrier signals in situations of low traffic load.