5G URSP and ATSSS Policy Framework for Spectrum Prioritization
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Solution Overview
Problem
Current wireless network technologies lack mechanisms for prioritizing frequency bands and optimizing spectrum usage, leading to non-optimal utilization of scarce spectrum resources, increased resource contention, and higher costs due to defaulting to higher cost spectrum types.
Innovation Solution
The implementation of an enhanced rules framework within 3GPP 5G NR protocols that allows for the specification of prioritized frequency band usage and allocation based on user device location, using modified URSP and ATSSS frameworks to steer traffic across different access types and spectrum bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If default spectrum usage without prioritization is used, then network operation is simple, but spectrum resources are not optimally utilized and resource contention increases
Solution Approach 1:
The patent introduces band priority parameters and location-based parameters into the URSP rules, transforming the spectrum selection process from a simple default behavior to a parameter-driven optimized selection. The network can dynamically adjust priority values and location information to optimize spectrum utilization without fundamentally changing the device architecture.
Solution Approach 2:
The patent uses URSP rules as an intermediary mechanism between the network and user devices for spectrum selection. The PCF generates and distributes these rules containing band priority information, which then guide device behavior without requiring direct complex control signaling between the network and devices for each spectrum selection decision.
2Productivity
If prioritized band class specification is implemented, then spectrum utilization efficiency improves, but policy distribution complexity increases
Solution Approach 1:
The patent extends the existing URSP rule framework, which is already widely deployed in 5G networks, to also handle spectrum selection priorities. This multi-functional use of the existing policy distribution mechanism avoids creating a separate complex system while still achieving optimized spectrum utilization.
Solution Approach 2:
The patent adds priority parameters to existing URSP rule structures, allowing the network to convey spectrum selection preferences through modified but compatible policy rules. This approach leverages existing distribution infrastructure while introducing optimization capabilities through parameter extensions.
3Adaptability or versatility
If dynamic policy updates are performed, then network optimization flexibility improves, but signaling overhead increases
Solution Approach 1:
The patent performs spectrum selection priorities in advance by pre-configuring URSP rules with band priority information. This preliminary action allows devices to autonomously make optimized spectrum selections without requiring real-time signaling for each decision, reducing ongoing signaling overhead while maintaining flexibility.
Solution Approach 2:
The patent enables the network to update URSP rules dynamically based on network conditions, device location, and spectrum availability. This feedback mechanism allows the system to adapt to changing conditions while using efficient rule-based policies that minimize continuous signaling requirements.
Data Source
AI summary
Apparatus and methods for prioritizing spectrum and controlling data traffic steering within a wireless network. In one embodiment, the apparatus and methods provide enhanced wireless services which allow network operators to prioritize utilization of spectrum for their subscribers. In one variant, an enhanced 3GPP UE Route Selection Policy (URSP) framework is provided for a UE connected to 5G wireless network, which allows the UE to use one or more prioritized 3GPP spectrum Band Class(es) based on one or more selection criterion or preconditions. In another variant, UE location information is used to dynamically update a data traffic steering mode or other functionality of an enhanced ATSSS (Access Traffic Steering, Switching, and Splitting) rule framework is described for dynamic control of steering or routing functionality, including between 3GPP- and non-3GPP network accesses for the data traffic.