CPE QoS Mapping Cellular Wi-Fi Consistency
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Solution Overview
Problem
Current wireless communication systems face challenges in maintaining end-to-end quality of service (QoS) across different radio access technologies, such as cellular and Wi-Fi, due to varying QoS parameters and service classes, which can lead to inconsistent communication reliability and throughput.
Innovation Solution
The described techniques involve mapping QoS flows of a first radio access technology (e.g., cellular) to service classes of a second radio access technology (e.g., Wi-Fi) based on QoS parameter values, using methods like transmitting mapping information and translating packet headers, to ensure consistent QoS across both technologies within a customer premises equipment (CPE).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If QoS flows of different radio access technologies are handled independently without mapping, then each technology can maintain its own QoS parameters, but end-to-end QoS consistency across technologies deteriorates
Solution Approach 1:
The patent introduces a QoS mapping mechanism that acts as an intermediary between QoS flows of different radio access technologies. The first device performs mapping of QoS flows from a first RAT to service classes of a second RAT based on QoS parameter values, creating a bridge that ensures end-to-end QoS consistency while allowing each technology to maintain its own QoS structure independently
Solution Approach 2:
The patent transforms QoS parameters from one radio access technology domain to another by mapping QoS flows to service classes based on QoS parameter values. This parameter transformation enables consistent QoS handling across different technologies by converting between their respective QoS parameter sets while preserving the essential QoS characteristics
2Reliability
If QoS parameter mapping between different RATs is implemented, then QoS consistency across technologies is improved, but the complexity of QoS management and mapping increases
Solution Approach 1:
The first device serves as an intermediary that automatically performs QoS mapping between different radio access technologies. By centralizing the mapping function in the first device, the system achieves improved communication reliability across technologies while managing the complexity centrally rather than distributing it across multiple devices
Solution Approach 2:
The system performs QoS mapping in advance before actual data transmission occurs. The first device maps QoS flows to service classes based on QoS parameter values beforehand, establishing the mapping relationships proactively so that subsequent communications can rely on pre-established mappings, reducing real-time management complexity
3Adaptability or versatility
If multiple QoS flows are mapped to multiple service classes, then QoS flexibility and adaptability are improved, but the complexity of mapping information transmission increases
Solution Approach 1:
The patent enables flexible mapping of multiple QoS flows to multiple service classes by transforming QoS parameter values between different radio access technology domains. This parameter-based mapping approach provides adaptability allowing dynamic mapping relationships to be established based on actual QoS requirements while maintaining a systematic method for handling the complexity of multiple mappings
Data Source
AI summary
Methods, systems, and devices for wireless communication are described. For example, the described techniques provide for a first device (e.g., a cellular modem or user equipment (UE)) mapping quality of service flows of a first radio access technology (e.g., cellular) to service classes of a second RAT (e.g., Wi-Fi). The first device may communicate mapping information that indicates the mapping to a second network device (e.g., a router). The first device and the second device may communicate various packets via the quality of service flows and the service classes.