Terminal Adaptor Messaging Interworking via Service Node
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Solution Overview
Problem
Current communication systems for dual-mode terminals, which can operate on both cellular and public switched telephone networks, do not support short message service (SMS) and multimedia message service (MMS) when the terminal is supported solely by a terminal adaptor, limiting messaging capabilities.
Innovation Solution
A communication environment that facilitates the delivery of messaging service messages through a wireless network or a public switched telephone network (PSTN) using a terminal adaptor, allowing messages to be routed and formatted appropriately for delivery to a dual-mode terminal, regardless of its connection status with the terminal adaptor or wireless network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a dual-mode terminal is supported solely by a terminal adaptor, then the terminal can access PSTN or data access network, but messaging service (SMS/MMS) delivery is not supported
Solution Approach 1:
A service node is introduced as an intermediary between the terminal adaptor and the messaging center. The service node receives messaging service messages from the messaging center, determines whether to deliver them to the dual-mode terminal via the terminal adaptor or wirelessly, and performs necessary protocol conversions. This intermediary enables messaging service support for terminals connected only through the terminal adaptor to PSTN or data access network.
2Adaptability or versatility
If the dual-mode terminal is supported by the wireless network, then messaging service is supported, but the terminal cannot access PSTN or data access network through the terminal adaptor
Solution Approach 1:
The system dynamically determines the optimal delivery path for messaging service messages based on the terminal's current connection status. The service node continuously monitors whether the dual-mode terminal is supported by the terminal adaptor or wireless network, and dynamically switches the message delivery method accordingly. This dynamic adaptation allows the system to handle both terminal adaptor-supported and wireless-network-supported terminals without requiring complex manual configuration.
3Adaptability or versatility
If multiple telephone terminals are used for different networks, then both cellular and PSTN services are accessible, but the user must keep track of multiple terminals and manage separate services
Solution Approach 1:
The dual-mode terminal is designed with multi-functionality to access both cellular networks and PSTN/data access networks through a single device. When connected to the terminal adaptor, the terminal can receive messaging service messages and make calls via the PSTN or data access network. The service node provides universal messaging service support across different network types, eliminating the need for users to manage multiple separate terminals and simplifying service coordination.
Data Source
AI summary
The present invention relates to facilitating the delivery of messaging service messages, such as those provided through short messaging services and multimedia messaging services, to a dual-mode terminal through a wireless network as well as through either a public switched telephone network (PSTN) or data access network using a terminal adaptor. The terminal adaptor is capable of providing local wireless communications with the dual-mode terminal, when it is within communication range of the terminal adaptor.