HQoS Control for Mobile IP Backhaul Risk Migration
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Solution Overview
Problem
Existing HQoS technologies concentrate risks during mobile IP backhaul network operations, leading to potential congestion and service disruptions due to inadequate quality of service (QoS) processing.
Innovation Solution
An HQoS control method and system that involves configuring bandwidth limitation parameters and QoS scheduling parameters for each cell site gateway (CSG) and base station, using a radio network controller site gateway (RSG) to create separate AAA domains and group queues, and intercepting DHCP packets to determine and set appropriate parameters for secure service packet traversal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If HQoS processing is concentrated at a single RSG, then QoS control is simplified, but system reliability deteriorates due to single point of failure
Solution Approach 1:
The patent divides the concentrated RSG functionality into distributed network elements including RSG, CSG, and BRAS. Each element performs specific QoS functions locally, transforming the single-point control architecture into a distributed multi-node architecture that eliminates single points of failure while maintaining QoS control capabilities.
Solution Approach 2:
The patent introduces CSG (Cell Site Gateway) as an intermediary component between base stations and RSG. The CSG acts as a local QoS enforcement point that mediates traffic control, distributing the QoS control function and reducing dependency on the central RSG, thereby improving system reliability.
2Manufacturing precision
If bandwidth limitation parameters are configured for each CSG, then QoS control precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the QoS control into hierarchical levels: global parameters at RSG, regional parameters at CSG, and local parameters at base stations. This segmentation allows precise local control at each level while distributing configuration management, preventing overwhelming complexity at any single point.
Solution Approach 2:
The patent implements local quality by allowing each CSG to have customized bandwidth limitation parameters based on its specific network conditions and service requirements. This enables precise QoS control tailored to local characteristics without requiring complex global configuration for each individual parameter.
3Reliability
If separate AAA domains are created for different IP segments, then service security is improved, but system complexity increases
Solution Approach 1:
The patent segments the network into separate AAA domains based on IP address segments, creating isolated authentication and authorization zones. This segmentation enhances security by preventing cross-contamination between different service domains while maintaining manageable complexity through standardized domain creation procedures.
Solution Approach 2:
The patent uses IP address segment parameters as the basis for creating AAA domains. By changing the organizational parameter from physical location to network address space, the system achieves improved service security through logical isolation while maintaining simplicity through automated domain assignment based on IP routing information.
Data Source
AI summary
The present application provides an HQoS control method, where the RSG is connected to multiple CSGs, and each CSG of the CSGs is connected to multiple base stations. The RSG configures a bandwidth limitation parameter for each CSG; creates different AAA domains for different IP address network segments, and configures a QoS scheduling parameter in each AAA domain; and determines, according to a configuration parameter of a first base station, a bandwidth limitation parameter of a CSG connected to the first base station, and determines a QoS scheduling parameter of the first base station, where the configuration parameter is used to indicate the CSG connected to the first base station and an AAA domain corresponding to the first base station. The present application greatly migrates a risk from excessively concentrated base station gateways, and ensures that a service packet securely traverses a layer 2 tunnel of a fixed network operator.