Home Gateway SAPI Layer Architecture for Service Mediation
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Solution Overview
Problem
Current home network gateways are complex and inflexible, requiring significant hardware and software modifications to support new services, making it difficult to create and implement advanced services across interconnected networks without extensive standardization and patching processes.
Innovation Solution
A new architecture for a home gateway with a Service Application Programming Interface (SAPI) Layer that enables communication and service mediation between home and external networks, using a Home Network Application Layer (HAPI Layer) to translate network commands into application layer commands, allowing for the creation and delivery of new services without individual device capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex hardware and software means are used to support communication and basic services, then communication capability between home network and external network is ensured, but device complexity increases and new services become problematic
Solution Approach 1:
The patent introduces a Service Application Programming Interface (SAPI) layer as an intermediary between the network layer and application layer. This SAPI layer acts as a mediator that handles service creation and management, shielding home network devices from the complexity of external network protocols and services. The SAPI layer provides standardized interfaces that simplify service implementation while maintaining reliable communication capabilities.
Solution Approach 2:
The gateway architecture is segmented into distinct layers: network layer, SAPI layer, and application layer. This segmentation allows each layer to handle specific functions independently, reducing overall system complexity. The network layer handles basic communication while the SAPI layer manages service-specific logic, enabling new services to be added without modifying the underlying communication infrastructure.
2Adaptability or versatility
If standardization processes are followed for new services, then service compatibility is improved, but service creation time and complexity increase
Solution Approach 1:
The SAPI layer establishes standardized service interfaces and protocols in advance, before new services need to be implemented. This preliminary standardization framework allows new services to be quickly developed by simply utilizing the pre-defined SAPI interfaces, rather than going through lengthy end-to-end standardization processes for each new service.
Solution Approach 2:
The SAPI layer provides universal service interfaces that can be used across different applications and services. This multi-functional interface layer enables various services (messaging, file transfer, remote control, etc.) to be implemented using the same standardized interfaces, improving compatibility while reducing creation time.
3Adaptability or versatility
If home network devices are required to have individual communication capabilities, then device functionality is improved, but device complexity and difficulty of service implementation increase
Solution Approach 1:
The SAPI layer in the gateway acts as an intermediary that provides communication capabilities to home network devices without requiring the devices themselves to be complex. The gateway's SAPI layer handles protocol translation, service management, and network communication, allowing simple home devices to access external network services through standardized interfaces.
Solution Approach 2:
The gateway automatically manages service configuration and communication protocols through the SAPI layer, without requiring complex individual device capabilities. The SAPI layer performs self-service functions including address translation, service registration, and connection management, reducing the burden on individual home network devices.
Data Source
AI summary
A Home Gateway (HGW) interconnects a Home Network (HN) and an External Network (EN), and is adapted to communicate with the HN and EN at a Network layer. HGW is provided with a Service Application Programming Interface Layer (SAPI Layer) capable of performing, at an Application layer, mediator functions for supporting communication and services between the HN and EN. Devices of the HN are able to communicate with devices of EN via the HGW, and to actualize services via the HGW.