QoS-Categorized LAN Links for CPE Device Performance
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Solution Overview
Problem
Customer premises equipment (CPE) fails to provide customized quality of service (QoS) management per application and device within a local area network (LAN), leading to sub-optimal performance due to treating all devices with the same QoS despite varying requirements.
Innovation Solution
CPE determines device categories based on QoS needs, establishes separate LAN links with customized QoS management for each category, and integrates with a WWAN link using user equipment route selection policies and network slices to optimize performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If CPE treats all devices with the same QoS, then device complexity is reduced and ease of operation is improved, but customized QoS management per application and device cannot be provided leading to sub-optimal performance
Solution Approach 1:
The patent segments devices into different categories (e.g., voice, video, data, gaming) based on their QoS requirements. Each category is then assigned customized QoS parameters such as different priority levels, bandwidth allocations, and packet handling rules. This segmentation enables customized QoS management while maintaining operational simplicity through automated classification.
Solution Approach 2:
The patent applies local quality by assigning different QoS characteristics to different device categories. Instead of uniform QoS treatment, the system provides tailored QoS parameters for each device type or application category, such as prioritizing voice traffic over data traffic, or assigning specific bandwidth guarantees to gaming devices. This enables optimized performance for each device type while the CPE maintains a unified management architecture.
2Productivity
If CPE implements customized QoS management per device and application, then performance is optimized for varying device requirements, but device complexity increases
Solution Approach 1:
The patent implements self-service by having devices or applications autonomously indicate their QoS requirements through standardized protocols. Devices can self-identify their category (e.g., through DSCP markings, 5QFI values, or application-layer signaling) without requiring manual configuration or complex device-side QoS management software. The CPE receives these indicators and automatically applies appropriate QoS treatment, reducing complexity at the device level while maintaining customized management.
Solution Approach 2:
The patent changes QoS parameters dynamically based on device category. The CPE modifies parameters such as priority queues, bandwidth limits, packet loss thresholds, and latency tolerances according to the identified device type. These parameter changes are implemented through standardized QoS mechanisms like IntServ, DiffServ, or MPLS, allowing customized performance without requiring complex device architecture changes.
3Productivity
If CPE establishes separate LAN links with customized QoS for each device category, then performance is optimized, but network configuration complexity increases
Solution Approach 1:
The patent applies universality by designing a multi-functional QoS management framework that can handle multiple device types and application categories through a single unified system. The CPE uses a universal classification mechanism that works across different protocols and device types, and a universal QoS policy engine that can apply various treatment rules without requiring separate configuration for each device type. This reduces network configuration complexity while enabling optimized performance for all device categories.
Data Source
AI summary
In some implementations, a customer premises equipment (CPE) may determine a category associated with a device in a local area network (LAN), wherein the category is based on a quality of service (QOS) requirement associated with the device. The CPE may establish a LAN link with the device based on the category. The CPE may receive a user equipment route selection policy (URSP) rule for a network slice associated with the category. The CPE may establish a wireless wide area network (WWAN) link to a network node based on the URSP rule, wherein the WWAN link is based on the network slice and a QoS flow identifier associated with the category.