Dynamic RAN Resource Allocation via Bandwidth Parts
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Solution Overview
Problem
Conventional resource allocation techniques in wireless networks are time-intensive and inadequate to efficiently manage radio resources, particularly in enterprise networks lacking Carrier Aggregation support and facing challenges with fragmented spectrum like CBRS, which can lead to unmet radio resource requirements and poor Quality of Service (QoS).
Innovation Solution
A dynamic RAN resource allocation method that monitors operations and reallocates wireless resources using Bandwidth Parts (BWPs), allowing for the repartitioning of communication spectrum and fractional frequency reuse to optimize spectrum utilization, especially in CBRS networks, by balancing load across base stations and reallocating unused bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional resource allocation techniques are used, then network operation stability is maintained, but radio resource requirements are not met and QoS deteriorates
Solution Approach 1:
The patent implements dynamic resource allocation by continuously monitoring radio resource requirements and adjusting bandwidth assignments in real-time. The system transitions from static conventional allocation to dynamic adaptation, allowing base stations to receive additional bandwidth when requirements are not met and return bandwidth when requirements are exceeded, thereby simultaneously improving QoS reliability and spectrum utilization efficiency.
Solution Approach 2:
The patent establishes a feedback mechanism where the system monitors whether radio resource requirements are met at each base station and uses this information to trigger reallocation decisions. This closed-loop control enables the system to respond to changing conditions, improving both QoS reliability and overall spectrum efficiency by allocating resources based on actual needs rather than fixed assignments.
2Reliability
If bandwidth is reallocated to meet radio resource requirements, then QoS improves, but network complexity increases
Solution Approach 1:
The patent enables base stations to self-manage their resource requirements by monitoring their own QoS status and triggering reallocation requests when needed. The system autonomously determines when bandwidth reallocation is necessary and executes the reallocation without requiring complex centralized control, thereby improving QoS while minimizing the increase in management complexity.
Solution Approach 2:
The patent changes the operational parameters of base stations by adjusting bandwidth allocations dynamically. When a base station's radio resource requirements are not met, the system modifies the bandwidth parameter to meet the requirements, and when requirements are exceeded, it reduces the bandwidth parameter. This parameter-based approach simplifies management compared to more complex resource control mechanisms.
3Adaptability or versatility
If spectrum is fragmented and Carrier Aggregation is not supported, then device compatibility is improved, but spectrum utilization efficiency deteriorates
Solution Approach 1:
The patent segments the available spectrum into discrete bandwidth units that can be dynamically allocated to individual base stations. This segmentation allows the system to work with fragmented spectrum without requiring Carrier Aggregation, maintaining compatibility with devices that don't support it while still achieving efficient spectrum utilization through flexible allocation of the segmented bandwidth units.
Solution Approach 2:
The patent creates a universal resource allocation mechanism that works with both fragmented and contiguous spectrum assignments. The system can allocate bandwidth in various patterns (contiguous or non-contiguous) and adapt to different spectrum availability scenarios, providing a multi-functional solution that maintains device compatibility while improving spectrum utilization efficiency across diverse network conditions.
Data Source
AI summary
A RAN resource allocation method and apparatus that monitors operation and re-allocates wireless resources if radio resource requirements are not met for one or more BS/APS in the RAN. A system is disclosed that orthogonally allocates Bandwidth Parts (BWPs) to the APs in a RAN. The system monitors the radio resource requirements of APs in realtime, and if requirements are not being met, it can transfer radio resources from one BS/AP to another using BWPs. One objective of the invention is to optimally utilize the available spectrum.