IP Address Allocation for MTC SMS Without PDP Context
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Solution Overview
Problem
The existing machine-to-machine (M2M) communication systems face challenges in efficiently managing IP address allocation for MTC devices, particularly due to the risk of depletion of Mobile Station Integrated Services Digital Network (MSISDN) numbers, which leads to increased operational costs and resource utilization issues.
Innovation Solution
The method involves allocating IP addresses to MTC devices either statically or dynamically, allowing SMS transmission and reception without activating a packet data protocol (PDP) context, thereby decoupling IP allocation from PDP context procurement, and using these IP addresses for routing SMS messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If IP addresses are allocated to MTC devices using traditional MSISDN-based methods, then SMS transmission can be achieved, but the risk of MSISDN number depletion increases and operational costs rise
Solution Approach 1:
The patent introduces IP addresses as an intermediary resource to replace MSISDN numbers for routing SMS messages to MTC devices. The network assigns IP addresses to MTC devices, and the SMS gateway uses these IP addresses instead of MSISDN numbers to route messages, thereby preserving MSISDN numbers while maintaining SMS transmission capability
Solution Approach 2:
The patent changes the routing parameter from MSISDN number to IP address. By modifying the addressing parameter used in SMS routing, the system can continue to deliver SMS messages to MTC devices without depleting the有限 MSISDN number pool, thus resolving the contradiction between maintaining SMS capability and preserving number availability
2Ease of operation
If PDP context is activated for IP address allocation, then MTC devices can communicate, but network resources and signaling overhead increase
Solution Approach 1:
The patent extracts the IP address allocation function from the PDP context activation process. By separating IP address assignment from full PDP context establishment, the system provides MTC devices with IP addresses for SMS communication without requiring complete PDP context activation, thereby reducing network resource consumption and signaling overhead while maintaining basic communication capability
Data Source
AI summary
Embodiments contemplate techniques and devices for allocating IP addresses for MTC devices, transmitting and receiving SMS using the allocated IP addresses. The MTC device may be allocated with an IP address without activating a packet data protocol (PDP) context. In addition, after the IP address has been allocated, SMS messages may be transmitted from and to MTC devices using the IP address.