URSP Token Anchoring for Deterministic QoS in 5G UE-UE Communications
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Solution Overview
Problem
Current 3GPP standards face challenges in ensuring deterministic Quality of Service (QoS) for time-sensitive communications between user equipment (UE) in 5G networks, particularly in selecting the same user plane function and maintaining consistent QoS for UE-UE communications, which is crucial for industrial IoT applications.
Innovation Solution
The proposed solution extends the User Equipment (UE) Route Selection Policy (URSP) rules to include tokens that identify specific network resources and QoS levels, ensuring that UE-UE communications are anchored on the same network slice and network functions, thereby maintaining consistent QoS across sessions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network slicing architecture is introduced for 5G mobile networks, then network flexibility and service differentiation are improved, but managing network communications and connectivity for mobile network devices becomes significantly more complex
Solution Approach 1:
The patent introduces URSP rules as an intermediary mechanism between UEs and the network slicing infrastructure. These rules include tokens that automatically identify and anchor PDU sessions to specific network functions and slices, mediating the complex interactions between multiple UEs and the sliced network without requiring manual configuration or complex management procedures.
Solution Approach 2:
The patent applies preliminary action by pre-configuring URSP rules with tokens in the network before UEs need to establish communications. When UEs request PDU sessions, the pre-configured rules automatically guide them to the correct network functions and slices, eliminating the need for real-time complex decision-making and simplifying session management.
2Reliability
If deterministic QoS is ensured for time-sensitive communications between UEs, then communication reliability is improved, but network resource allocation and session anchoring become more complex
Solution Approach 1:
The patent changes the parameter representation by introducing tokens within URSP rules that encode network function identifiers and QoS requirements. This parameter transformation simplifies the management of deterministic QoS by converting complex session anchoring requirements into token-based identifiers that can be automatically processed by the network.
Solution Approach 2:
The URSP rules with tokens serve as an intermediary layer that automatically handles the complex task of anchoring PDU sessions to specific network functions while ensuring deterministic QoS. This intermediary mechanism shields the network from the complexity of direct session management while guaranteeing reliable time-sensitive communications.
3Stability of the object's composition
If UEs are anchored on the same network slice and network functions, then QoS consistency is improved, but network resource allocation becomes more restrictive
Solution Approach 1:
The patent applies universality by designing URSP rules that can be applied across multiple UEs and PDU sessions. The same token-based URSP rule structure serves multiple functions: identifying network functions, anchoring sessions, and ensuring QoS consistency. This universal mechanism maintains QoS stability while allowing flexible resource allocation through the configurable nature of URSP rules.
Data Source
AI summary
Presented herein are techniques to facilitate user equipment (UE) to UE communications in a mobile network environment. In one example, a method may include provisioning a UE route selection policy (URSP) for each of a first UE and a second UE, wherein each URSP provisioned for each of the first UE and the second UE comprises: a first token that identifies at least one network resource that is to be utilized for a session for each of the first UE and the second UE; and a second token associated with a quality of service (QoS) that is to be provided for each session. The first token can be used to establish a session for each of the first and second UE using the same at least network resource and each session can be provided a QoS level based on the second token.