Dynamic Spectrum Sharing Bandwidth Allocation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dynamic spectrum sharing (DSS) schemes in wireless networks lack the flexibility to dynamically expand and reduce DSS cell bandwidth based on the changing usage characteristics of different radio access technologies (RATs) like LTE and NR, leading to inefficient spectrum utilization and user experience issues.
Innovation Solution
Implement a method and system that dynamically adjust the size of spectrum portions allocated to different RATs by monitoring utilization thresholds and parameters, allowing for real-time reconfiguration of DSS cell bandwidth in response to changes in RAT usage patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If dynamic spectrum sharing (DSS) schemes are implemented to allow multiple RATs to coexist on the same spectrum, then spectrum utilization is improved, but the flexibility to dynamically adjust bandwidth based on changing usage characteristics is insufficient
Solution Approach 1:
The patent implements dynamic spectrum sharing by allowing the access node to dynamically adjust the bandwidth allocation between first and second portions of the spectrum based on real-time utilization parameters. The system transitions from static bandwidth division to dynamic reconfiguration, where the access node can modify the size of DSS cell bandwidth in response to changing RAT usage patterns, thereby resolving the contradiction between spectrum utilization and adaptability.
Solution Approach 2:
The patent changes the parameter of bandwidth allocation dynamically. By monitoring utilization parameters and comparing them against thresholds, the system adjusts the bandwidth parameters of the first and second portions of the spectrum. This parameter change enables the system to adapt to changing usage characteristics while maintaining efficient spectrum utilization, directly addressing the technical contradiction.
2Adaptability or versatility
If the access node dynamically adjusts the size of spectrum portions based on utilization parameters, then adaptability to changing RAT usage is improved, but network resource management complexity increases
Solution Approach 1:
The patent employs feedback mechanisms where the access node monitors utilization parameters from both the first and second portions of the spectrum, compares them against predefined thresholds, and adjusts bandwidth allocation accordingly. This feedback loop enables automatic adaptation to changing RAT usage patterns while using simple threshold-based logic to manage complexity, allowing dynamic adjustability without proportionally increasing management complexity.
3Productivity
If spectrum is dynamically reallocated between LTE and NR portions, then spectrum efficiency is improved, but user experience may be affected due to frequent reconfiguration
Solution Approach 1:
The access node autonomously monitors utilization parameters and automatically adjusts spectrum allocation without requiring external intervention or causing disruptive reconfigurations. The system self-regulates based on threshold comparisons, making spectrum efficiency improvements transparent to users while maintaining stable service experience. The dynamic adjustments are made in a manner that preserves user experience continuity.
Data Source
AI summary
A system and method of managing network bandwidth is provided, in which one or more utilization thresholds are set for an access node, wherein the access node is configured to communicate using a band consisting of a first portion corresponding to communication in a first communication mode and a second communication mode and a second portion corresponding to communication in the first communication mode but not the second communication mode; and one or more utilization parameters are monitored and compared to the corresponding utilization threshold(s). Based on the comparison, the sizes of the portions may be modified and/or wireless devices seeking to join the network may be appropriately assigned.