Cellular QoS Mapping in WLAN SCS Frames for Seamless Handover
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently communicating cellular Quality of Service (QoS) information, which affects data throughput and user experience.
Innovation Solution
Implementing a system and method for communicating cellular QoS information through multi-link communication schemes, utilizing Stream Classification Service (SCS) descriptors and QoS characteristics elements, and employing controllers and message processors to manage and transmit QoS data effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cellular QoS parameters are directly transmitted without mapping to Wi-Fi QoS parameters, then the cellular network can maintain its native QoS management, but the Wi-Fi network cannot properly allocate resources leading to poor QoS during network transitions
Solution Approach 1:
The patent introduces a QoS mapping mechanism that acts as an intermediary between cellular and Wi-Fi networks. The cellular QoS parameters (5QI) are translated into equivalent Wi-Fi QoS parameters through a mapping table, enabling seamless QoS management across different network types without losing reliability or adaptability
2Reliability
If a detailed QoS parameter mapping mechanism is implemented between cellular and Wi-Fi networks, then QoS consistency is improved, but the system complexity increases
Solution Approach 1:
The patent transforms complex cellular QoS parameters into simplified Wi-Fi equivalent parameters through predefined mapping relationships. By changing the parameter representation from detailed cellular metrics to standardized Wi-Fi QoS fields, the system achieves QoS consistency while maintaining manageable complexity through standardized mappings
3Productivity
If QoS information is not properly communicated during network transitions, then the signaling protocol remains simple, but resource allocation efficiency deteriorates
Solution Approach 1:
The patent performs QoS parameter mapping in advance during the network transition setup phase. By pre-establishing the mapping between cellular and Wi-Fi QoS parameters before actual data transmission begins, the system ensures efficient resource allocation without losing QoS information, while avoiding complex real-time transformations
Data Source
AI summary
For example, an apparatus may be configured to cause wireless communication station (STA) to set a cellular Quality of Service (QoS) index value in a cellular QoS index field to indicate a predefined setting of a set of a plurality QoS parameters for a cellular QoS traffic flow to be communicated by the STA over a Wireless Local Area Network (WLAN). For example, the apparatus may be configured to cause the STA to transmit a Stream Classification Service (SCS) request to an Access Point (AP) of the WLAN, the SCS request including an SCS descriptor element, the SCS descriptor element including the cellular QoS index field.