M2M Device External Identifier Retrieval via HSS Binding
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Solution Overview
Problem
Current technologies lack a mechanism for M2M service providers to automatically retrieve external identifiers allocated by wireless communication networks for M2M devices, limiting flexibility and requiring manual management procedures, which is not scalable for large-scale deployments.
Innovation Solution
The described techniques enable M2M service providers to retrieve external identifiers from wireless communication networks using methods that involve establishing data sessions, querying nodes like Home Subscriber Servers and InterWorking Functions, and binding these identifiers for interworking purposes, such as device triggering procedures, allowing for on-demand retrieval of external identifiers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual management procedures are used for provisioning external identifiers, then accuracy and control are improved, but complexity and scalability deteriorate
Solution Approach 1:
The M2M device autonomously performs the following actions: detects its own IP address, queries the HSS for the external identifier associated with its IP address, and stores the retrieved external identifier. This self-service mechanism eliminates the need for manual provisioning while maintaining accurate identifier association, thereby resolving the contradiction between reliability and complexity.
Solution Approach 2:
The system performs preliminary actions by pre-configuring the device with the capability to query the HSS for external identifiers. The HSS maintains pre-established bindings between IP addresses and external identifiers, enabling the device to retrieve the correct external identifier automatically without manual intervention, thus improving scalability while maintaining accuracy.
2Loss of time
If external identifiers are pre-provisioned by access network, then setup time is reduced, but flexibility and adaptability deteriorate
Solution Approach 1:
The system transitions from static pre-provisioning to dynamic on-demand retrieval. The device queries the HSS at the moment of need to obtain the current external identifier associated with its IP address. This dynamic approach allows the system to adapt to changing network conditions and identifier allocations while maintaining rapid setup through automated retrieval processes.
Solution Approach 2:
The device receives feedback from the HSS in the form of the external identifier associated with its IP address. This feedback mechanism enables the device to automatically configure itself with the correct external identifier, providing both rapid setup and flexibility in identifier selection without manual intervention.
3Adaptability or versatility
If on-demand retrieval of external identifiers is implemented, then flexibility and scalability are improved, but system complexity and query processing requirements worsen
Solution Approach 1:
The HSS performs multiple functions: it authenticates the device, manages the data session, and provides the external identifier. By consolidating these functions into a single universal component, the system achieves on-demand flexibility without proportionally increasing overall system complexity. The device also serves multiple purposes by using the same query mechanism for both session establishment and identifier retrieval.
Data Source
AI summary
Techniques for automatically transferring an external identifier for a wireless device from a wireless communication network serving the wireless device to a service provider external to the wireless communication network are disclosed. In an example method, carried out in one or more nodes of the wireless communication network, a binding between the external identifier and an internal identifier for the wireless device is maintained. A data session for the wireless device and corresponding to the service provider is established, wherein said establishing includes an assignment of an IP address to the wireless device. A request for the external identifier is received from the service provider, said request including the IP address for the wireless device. The external identifier is then sent to the service provider, in response to the request.