Service Request Message Service Type Differentiation
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Solution Overview
Problem
Current 3GPP mobile networks lack the ability to differentiate between different types of communication services originating from the same device, such as delay-tolerant and non-delay-tolerant services, leading to inefficient congestion control and network resource management.
Innovation Solution
Introducing new service types in the Service Request message that allow networks to differentiate between communications based on their service types, enabling the network to apply appropriate congestion control measures, including back-off timers, for each type of communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If service type differentiation is implemented per device, then network can identify delay tolerant services, but it cannot differentiate between different communication types from the same device
Solution Approach 1:
The invention segments the service request into two levels of identification: device-level (UE identity) and communication-level (service type in Service Request message). This allows the network to differentiate congestion control not just by device but by specific communication/service type, resolving the contradiction between service differentiation and control granularity.
Solution Approach 2:
The invention adds a new dimension to service differentiation by introducing service type identification at the message level (another dimension beyond device level). The Service Request message now carries both device identity and service type information, enabling multi-dimensional congestion control.
2Ease of operation
If congestion control is applied uniformly to all services, then network management is simplified, but resource efficiency deteriorates due to inability to prioritize different service types
Solution Approach 1:
The invention applies local quality by enabling differentiated congestion control parameters (back-off timers, rejection policies) for different service types. Each service type can have its own congestion control characteristics, allowing the network to treat delay-tolerant services differently from delay-sensitive services while maintaining manageable complexity through standardized message structures.
3Productivity
If per-communication service type differentiation is implemented, then network can optimize resource allocation, but signaling overhead increases
Solution Approach 1:
The invention uses a universal Service Request message structure that serves multiple functions: device identification, service type indication, and congestion control trigger. This multi-functional approach enables per-communication differentiation without requiring separate signaling messages for each function, thus minimizing overhead while maximizing resource allocation efficiency.
Data Source
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AI summary
The current invention introduces new service types like delay tolerant access type, low priority access type and background data access type to the Service Request procedure and also proposes congestion control for the proposed new service types.