IP-SM Gateway Domain Selection for Unified Cross-Network SMS
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Solution Overview
Problem
Current SMS networks struggle with handling SMS messages originating from different generational networks (2G, 3G, 4G, 5G) due to varying interfaces and capabilities, leading to complications in message delivery and lack of international validation for subscriber service subscription.
Innovation Solution
A unified SMS system (USMS) utilizing an IP-SM-GW that processes SMS messages from multiple networks, determines their origin, validates them using a subscriber database, and sends them to the appropriate domain for delivery, supporting interworking with legacy and new messaging services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple different network interfaces are used to support 2G, 3G, 4G, and 5G networks, then network compatibility and service coverage are improved, but system complexity and interface management become worse
Solution Approach 1:
The IP-SM-GW acts as an intermediary gateway between multiple legacy networks (2G, 3G, 4G) and the 5G core network. It provides a unified interface that translates and adapts messages between different network protocols, eliminating the need for multiple direct interfaces while maintaining broad network compatibility.
Solution Approach 2:
The IP-SM-GW is designed with multi-functionality to handle SMS messaging across multiple network generations simultaneously. It can process messages from 2G, 3G, and 4G networks through a single unified interface, making the system universally compatible without requiring separate specialized interfaces for each network type.
2Device complexity
If a unified gateway is used to process SMS from multiple networks, then system complexity is reduced, but the ability to validate international SMS messages against subscriber service subscription may be compromised
Solution Approach 1:
The IP-SM-GW serves as a mediating gateway that maintains validation reliability by implementing service subscription verification mechanisms. It validates international SMS messages against subscriber service subscriptions while providing a unified interface, thus not compromising reliability despite reducing complexity.
Solution Approach 2:
The system implements feedback mechanisms where the IP-SM-GW receives validation results from the core network and uses this information to determine whether to accept or reject incoming SMS messages. This feedback loop ensures that validation reliability is maintained even with a simplified unified gateway architecture.
3Adaptability or versatility
If SMS messages are routed through multiple network interfaces, then message delivery coverage is improved, but message delivery time and routing complexity increase
Solution Approach 1:
The IP-SM-GW as an intermediary enables direct routing of SMS messages from legacy networks to the 5G core network without requiring multiple intermediate routing steps. This single-hop routing through the gateway reduces message delivery time while maintaining broad delivery coverage across different network types.
Data Source
AI summary
Various embodiments of apparatus, systems and/or methods are described for processing SMS messages using a gateway server (IP-SM-GW). The IP-SM-GW includes a processor, multiple interfaces, and at least one module. These interfaces are configured to receive a short message service (SMS) message from one of a plurality of different networks comprising LTE, 2G/3G and 5G. The module is configured to determine which of the networks the SMS message originated from; query the subscriber database based on the UE identifier in the MO SMS message; validate the SMS message; and in response to the result of validating the SMS message, sending the SMS message to a short message service center server (SMSC) for delivery or rejecting the SMS message for deposit. The IP-SM-GW also is configured to select and send the SMS message to the proper domain.