Cellular Backhaul WLAN Access Points for Secure QoS Segmentation
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Solution Overview
Problem
Wi-Fi based wireless local area networks (WLANs) face limitations in security and the ability to provide varying levels of service to different devices, necessitating improved communication protocols for enhanced performance and quality of service (QoS).
Innovation Solution
A cellular network communication system utilizing a primary access point connected to a high-speed network via a wired connection, with secondary access points communicating through cellular backhaul using 5G New Radio (NR) and integrating WiFi interfaces for UE communication, enabling prioritization and translation of communications via cellular backhaul channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Wi-Fi protocols are used for wireless network access, then network coverage and device connectivity are provided, but security and quality of service capabilities are limited
Solution Approach 1:
The patent introduces cellular network protocols (5G NR) as an intermediary layer between the Wi-Fi access points and the core network. The secondary access points use cellular backhaul connections to communicate with the primary access point, which then connects to the wired network. This intermediary cellular infrastructure provides enhanced security and QoS capabilities while the access points themselves maintain Wi-Fi functionality for device connectivity.
2Reliability
If cellular backhaul communication channels are established between access points, then security and QoS are enhanced, but device complexity and infrastructure requirements increase
Solution Approach 1:
The access points in the system are designed with multi-functionality, serving dual purposes: providing Wi-Fi access to end devices and establishing cellular backhaul connections for network communication. The secondary access points function both as Wi-Fi access points for local devices and as cellular user equipment for backhaul communication, eliminating the need for separate infrastructure and reducing overall system complexity.
3Reliability
If separate frequency bands are used for UE communication and backhaul communications, then interference is reduced and communication reliability is improved, but spectrum resources and system complexity increase
Solution Approach 1:
The patent segments the frequency spectrum into distinct bands for different communication functions. One frequency band is allocated for user equipment communication with access points, while a separate frequency band is dedicated for backhaul communications between access points and the primary node. This frequency segmentation eliminates interference between access and backhaul traffic, ensuring reliable communication for both functions.
Data Source
AI summary
Various arrangements of a cellular network communication system and related methods are presented herein. A primary access point includes a cellular interface through which a cellular backhaul communication channel is established with a secondary access point. The secondary access point includes a cellular interface through which UE communicate, via the cellular network communication protocol, with the secondary access point and access the wired high speed network connection. The secondary access point further includes a cellular interface through which the cellular backhaul communication channel is established with the primary access point using the cellular network communication protocol.