Wireless Traffic Steering via Service Type Prioritization
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Solution Overview
Problem
Current wireless communication systems lack an efficient method to control traffic steering to wireless local area networks (WLAN) or small cells based on the type of service, which is crucial for ensuring priority services like emergency services and high-priority communications.
Innovation Solution
A method where user equipment (UE) performs random access and steers traffic based on bearer steering criteria, determining whether to request a specific bearer service to a first node or a second node, depending on the service type, with specific criteria such as emergency services, high-priority access, or multimedia telephony services, ensuring that critical services are handled by the most appropriate network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traffic steering is implemented without service-type awareness, then network simplicity is maintained, but service quality and reliability for critical services cannot be ensured
Solution Approach 1:
The patent applies parameter changes by introducing service type as a new classification parameter in the traffic steering decision process. Instead of uniform treatment of all traffic, the system changes the steering parameters based on service type (e.g., emergency services, high-priority services, and other services), enabling differentiated QoS while maintaining a relatively simple overall architecture through standardized protocols.
2Reliability
If all services are treated equally in traffic steering, then control complexity is minimized, but critical services like emergency communications cannot receive priority
Solution Approach 1:
The patent applies segmentation by dividing traffic into different service types (emergency services, high-priority services, and other services) and applying distinct steering rules to each segment. This allows critical services to receive priority treatment through separate control logic while maintaining ease of operation through automated classification and standardized handling procedures for each service segment.
Solution Approach 2:
The patent applies local quality by implementing service-type-specific steering criteria at different points in the network architecture. Each service type receives localized quality treatment through targeted steering decisions (e.g., directing emergency services to specific network elements with guaranteed resources) while maintaining uniform policies for other traffic types, thus achieving priority guarantee without overwhelming complexity.
3Productivity
If traffic steering decisions are made without service type information, then processing speed is maintained, but service-specific optimization is lost
Solution Approach 1:
The patent applies preliminary action by classifying service types and preparing steering decisions in advance before actual traffic routing occurs. Service type information is captured and processed preliminarily at the point of entry, enabling optimized routing decisions to be executed efficiently without adding significant processing delay. This preliminary classification allows service-specific optimization to be built into the routing path rather than added as a separate processing step.
Data Source
AI summary
A method and apparatus for controlling traffic steering in a wireless communication system is provided. A user equipment (UE), which is able to communicate with a first node and a second node simultaneously, may performs a random access to the first node if initiated service corresponds to an emergency service or a service of the UE which has high priority. Alternatively, the UE may acquire bearer steering criterion, which indicates which bearer should be served either at the first node or the second node, from the first node, and determine whether to request the specific bearer service to the first node or the second node according to the bearer steering criterion.