Dynamic Carrier Frequency Allocation for RAN Sharing
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Solution Overview
Problem
Current Radio Access Network (RAN) sharing models fail to dynamically adjust frequency spectrum resources among operators, leading to suboptimal utilization and increased investment costs.
Innovation Solution
A method and apparatus for dynamically allocating carrier frequency resources among multiple operators by setting predetermined frequency thresholds, allowing operators to access additional frequencies when their usage exceeds or falls below these thresholds, and prioritizing frequency allocation based on preconfigured policies and occupation priorities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If operators are allocated original frequency bands without overlapped coverage, then frequency spectrum resources can be allocated to subscribers, but the frequency spectrum resource utilization is low and cannot be dynamically adjusted
Solution Approach 1:
The patent implements dynamic frequency spectrum resource allocation by allowing operators to exceed their original frequency band allocations. The system dynamically adjusts frequency allocation based on real-time demand and operator priority levels, transitioning from a static original frequency band allocation to a dynamic multi-level allocation system that can adapt to changing network conditions and operator needs.
Solution Approach 2:
The patent changes the allocation parameter from fixed original frequency bands to variable frequency allocations. By introducing priority levels (first, second, third priority operators) and allowing operators to access additional frequency bands beyond their original allocation, the system enables flexible parameter adjustment to optimize frequency spectrum utilization while maintaining network stability.
2Ease of manufacture
If the same Base Station Controller is connected to core networks of different operators to support BTS sharing, then resource sharing among operators is achieved, but frequency spectrum resources cannot be dynamically adjusted among operators
Solution Approach 1:
The patent maintains the static RAN sharing architecture where the same BSC serves multiple operators while introducing dynamic frequency allocation mechanisms. The system allows operators to dynamically access additional frequency resources beyond their original allocations based on priority levels and real-time needs, thereby adding flexibility to the otherwise static sharing arrangement.
Solution Approach 2:
The patent segments frequency spectrum resources into different allocation levels: original frequency bands for all operators, additional frequency bands for high-priority operators, and restricted frequency bands for low-priority operators. This segmentation enables differentiated service levels while maintaining the overall sharing architecture, allowing dynamic adjustment within the segmented framework.
Data Source
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AI summary
A method for sharing carrier frequency resources among multiple operators includes: when a carrier frequency needs to be allocated to an operator, allocating the carrier frequency to the operator if the number of carrier frequencies occupied by the operator does not reach a predetermined frequency number; allocating the carrier frequency to the operator according to a preconfigured policy if the number of carrier frequencies occupied by the operator already reaches the predetermined frequency number. An apparatus for sharing carrier frequency resources among multiple operators is also provided. In the technical solution of the present invention, the operator may occupy other available carrier frequencies when the number of carrier frequencies occupied by the operator exceeds the predetermined frequency number, and therefore frequency spectrum resources of operators may be adjusted dynamically. In this way, the utilization of the frequency spectrum resources is improved. Therefore, the investment cost of operators is reduced.