Framing Protocol Header for QoS in WLAN Cellular Convergence
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Solution Overview
Problem
There is a lack of technology in 3GPP for ensuring Quality of Service (QoS) satisfaction and stability in data transmission and reception between an eNB and a UE through WLAN in LWIP, as well as a lack of awareness of convergence and communication performance, leading to potential data loss and unsatisfactory service.
Innovation Solution
Incorporating a framing protocol header with quality of service identification information into downlink and uplink data transmitted between base stations and gateways, allowing for priority control and performance monitoring, thereby ensuring QoS and avoiding data loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If data is transmitted through WLAN in LWIP, then network coverage and flexibility are improved, but Quality of Service satisfaction and transmission stability deteriorate due to lack of QoS identification mechanisms
Solution Approach 1:
The patent segments the data transmission process by introducing distinct protocol headers for different transmission paths. Downlink data receives a framing protocol header with QoS identification, while uplink data receives an LWIPEP header, allowing differentiated handling and QoS management for each direction of communication through WLAN
Solution Approach 2:
The patent introduces a gateway as an intermediary component between the eNB and WLAN infrastructure. The gateway performs protocol conversion and adds appropriate headers to data packets, enabling QoS management and stable transmission through WLAN while maintaining compatibility with existing cellular network architectures
2Reliability
If protocol headers are added to data packets, then Quality of Service identification and priority control are improved, but device complexity and processing overhead increase
Solution Approach 1:
The patent applies different header structures to different data flows based on their specific requirements. Downlink data packets receive framing protocol headers with QoS fields, while uplink data packets receive LWIPEP headers, allowing QoS management only where necessary without uniformly increasing complexity across all data paths
Solution Approach 2:
The framing protocol header designed in the patent serves multiple functions simultaneously: it provides QoS identification through dedicated fields, enables priority control at the gateway, and maintains compatibility with existing cellular network protocols, reducing the need for separate mechanisms for each function
Data Source
AI summary
In order to allow for improvement on a case where data of a cellular network is transmitted and/or received through a wireless local area network (WLAN), a base station of the present invention includes: a first communication processing unit configured to add a header of a framing protocol to downlink data transmitted to a terminal apparatus; and a second communication processing unit configured to transmit the downlink data to which the header is added to a gateway that is used for transmission from the base station to the terminal apparatus through a wireless local area network. The framing protocol is a protocol for communication between the base station and the gateway and the header includes identification information corresponding to quality of service for the downlink data.