5G Bearer Preemption via Combined ARP and Slice Priority
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Solution Overview
Problem
Current preemption algorithms for bearers in 5G/NR networks fail to accurately determine priorities due to ambiguities introduced by network slicing, leading to improper preemption of existing communication sessions, resource wastage, and customer dissatisfaction.
Innovation Solution
A device determines a priority value for a bearer by combining bearer information and network slice information, including allocation and retention priority values and inter-slice priority levels, to ensure proper preemption of the most appropriate bearer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If current preemption algorithms based exclusively on ARP values are used, then the preemption process is simple, but the priority determination becomes inaccurate due to network slicing ambiguities
Solution Approach 1:
The patent combines multiple priority determination parameters (ARP values and network slice information) into a unified priority assessment mechanism. This merging allows the system to resolve ambiguities caused by network slicing by considering both bearer-level and slice-level priority indicators together, thereby improving priority determination accuracy without proportionally increasing system complexity.
Solution Approach 2:
The patent introduces additional parameters (network slice information) to the existing priority determination framework. By changing the parameter set from exclusively ARP values to a combination of ARP values and network slice information, the system achieves more accurate priority determination while maintaining a manageable level of complexity through structured parameter integration.
2Productivity
If bearers are preempted based on inaccurate priority determination, then resource allocation may occur, but existing communication sessions are improperly terminated causing resource wastage
Solution Approach 1:
The patent implements a feedback mechanism where the system continuously monitors communication session status and preemption outcomes. By using accurate priority determination based on combined ARP and network slice information, the system provides correct feedback for resource allocation decisions, preventing improper session terminations and the associated resource wastage that would require re-establishment.
Solution Approach 2:
The patent performs preliminary priority determination using comprehensive parameters (ARP values and network slice information) before executing preemption actions. This preliminary assessment ensures that only appropriate bearers are selected for preemption, preventing premature or incorrect session terminations and the subsequent resource wastage from re-establishment procedures.
3Adaptability or versatility
If network slicing is implemented, then network flexibility and service differentiation are improved, but ambiguities in priority determination arise
Solution Approach 1:
The patent segments the priority determination process into two distinct but integrated components: bearer-level priority (ARP values) and slice-level priority (network slice information). This segmentation allows the system to maintain the flexibility and service differentiation benefits of network slicing while resolving ambiguities by clearly defining how each segment contributes to the overall priority assessment.
Solution Approach 2:
The patent creates a composite priority determination mechanism that integrates multiple information sources (ARP values and network slice information) similar to how composite materials combine different properties. This composite approach maintains the adaptability benefits of network slicing while achieving accurate priority determination by synthesizing information from both bearer and slice levels.
Data Source
AI summary
A device may receive a request to establish a communication session with a network. The request includes first bearer information regarding a bearer and first network slice information regarding a network slice of the network. The device may generate a first priority value, associated with the request, based on the first bearer information and the first network slice information. The device may obtain second bearer information regarding active bearers associated with existing communication sessions and second network slice information regarding one or more network slices, of the network, associated with the active bearers. The device may generate second priority values associated with the active bearers based on the second bearer information and the second network slice information. The device may compare the first priority value and the second priority values. The device may preempt one or more of the active bearers based on the comparison.