Text Message Gateway for eHRPD Network Messaging
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Solution Overview
Problem
Text messaging is not implemented in Evolved High Rate Packet Data (eHRPD) networks, limiting network operators' ability to offer this popular service and generate revenue.
Innovation Solution
A text message gateway is added to the eHRPD network to enable Mobile Originating (MO) and Mobile Terminating (MT) text messaging, directly forwarding messages through the HRPD Serving Gateway (HSGW) without store-and-forward processing, allowing seamless integration with LTE and other networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If text messaging is implemented in eHRPD networks, then network operators can offer text messaging service and generate revenue, but the network architecture and message delivery mechanism must be modified
Solution Approach 1:
A text message gateway is introduced as an intermediary component in the eHRPD network. This gateway receives text messages from mobile devices, determines the destination network using HSS information, and forwards messages through appropriate gateways (HSGW for eHRPD, PGW for LTE) to the destination. This intermediary approach enables text messaging service without requiring fundamental changes to the existing eHRPD network architecture.
2Reliability
If text messages are forwarded through text message centers for store-and-forward processing, then message delivery is reliable, but message delivery time increases
Solution Approach 1:
The patent implements a direct message forwarding mechanism that creates a copy of the message delivery path, bypassing the traditional store-and-forward processing through text message centers. The text message gateway directly forwards messages through network gateways (HSGW/PGW) to destinations, eliminating the time-consuming store-and-forward process while maintaining delivery reliability through proper routing and acknowledgment mechanisms.
3Speed
If the network evolves to LTE technology, then data rates increase to 100 mbps or more, but text messaging capability must be maintained during transition
Solution Approach 1:
The text message gateway is designed with multi-functionality to handle text messaging across different network types (eHRPD and LTE). It can determine the destination network type using HSS information and select appropriate forwarding gateways (HSGW for eHRPD, PGW for LTE). This universal design ensures text messaging service continuity during network evolution from eHRPD to LTE, supporting both old and new network infrastructures simultaneously.
Data Source
AI summary
Systems and methods are disclosed for providing text messaging over an eHRPD network. A text message gateway implemented in the eHRPD network receives a Mobile Originated (MO) text message from a mobile device that is registered with the eHRPD network, and identifies a network where the destination of the text message is registered. If the destination is registered in the eHRPD network, then the text message gateway identifies an HRPD Serving Gateway (HSGW) in the eHRPD network that is serving the destination. The text message gateway then forwards the MO text message to the HSGW for delivery of the MO text message directly to the destination.