Spectrum Sharing Preference Signaling for Dynamic SAS Allocation
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Solution Overview
Problem
Existing radio frequency network deployments face inefficiencies due to fixed-width spectrum allocations, leading to under-loaded or over-loaded networks, and dynamic spectrum sharing operations are hindered by incompatibilities between different network configurations.
Innovation Solution
A network operator communicates its spectrum preferences and expected operations to a Spectrum Access System (SAS) entity, allowing it to dynamically allocate radio spectrum resources based on current and expected loads, geographical locations, and network configurations, ensuring compatibility across multiple networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed-width spectrum portions are allocated to network operators, then spectrum allocation is simple, but network resource utilization efficiency deteriorates
Solution Approach 1:
The patent implements dynamic spectrum allocation where the SAS entity continuously monitors network load conditions and adjusts spectrum assignments in real-time. Instead of fixed allocations, the system dynamically reassigns spectrum portions based on current network demands, allowing efficient utilization while maintaining operational simplicity through automated management.
Solution Approach 2:
The system changes the allocation parameter from fixed width to variable width spectrum portions. The SAS entity determines optimal bandwidth assignments based on load conditions, geographical locations, and network configurations, transforming the static allocation parameter into a dynamic one that adapts to changing network requirements.
2Productivity
If dynamic spectrum sharing is implemented, then network resource utilization efficiency improves, but system complexity increases
Solution Approach 1:
The patent introduces a Spectrum Access System (SAS) entity as an intermediary between network operators and the spectrum resource management. This centralized mediator handles the complex tasks of monitoring load conditions, determining optimal allocations, and coordinating spectrum sharing, thereby reducing the complexity burden on individual network operators while enabling efficient dynamic resource utilization.
Solution Approach 2:
The system implements feedback mechanisms where the SAS entity continuously monitors network load conditions and uses this information to adjust spectrum allocations. This closed-loop feedback system enables dynamic adaptation to changing conditions while managing complexity through automated decision-making based on real-time data.
3Device complexity
If spectrum is allocated without considering load usage, then allocation process is simple, but network loading balance deteriorates
Solution Approach 1:
The SAS entity monitors network load conditions and uses this feedback information to determine optimal spectrum allocations. By continuously assessing actual and expected load usages, the system maintains balanced network loading while keeping the allocation process automated and manageable through centralized coordination.
Solution Approach 2:
The system performs preliminary assessment of load conditions and network configurations before making spectrum allocation decisions. The SAS entity evaluates expected usages and geographical locations in advance to pre-determine optimal assignments, ensuring balanced loading while simplifying the actual allocation execution through pre-planned configurations.
Data Source
AI summary
The present disclosure relates to systems and methods for indicating to a spectrum access system communication preferences of a base station and/or of a network operator. Different methods may be used to indicate the communication preferences, including a dedicated type parameter transmitted with spectrum allocation requests from the base station, a rule-based system where the spectrum access system accesses communication preferences of the base station and/or network operator through an identifier corresponding to a rule definition, or the like. The spectrum access system may assign a channel to the network operator based on its communication preferences, such as to determine a channel assignment to correspond to a channel aligned with a raster of communications to be used by the network operator.