P-visited-network-id (pvni) with data restoration
AssigneeT-Mobile USA, Inc.
InventorNassereddine Sabeur
Life of this patent
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Abstract
Techniques are disclosed for providing data restoration for a call server control function (S-CSCF) in a telecommunications network that includes a P-Visited-Network-ID (PVNI). In some embodiments, in the course of a user device registering to a telecommunications network, a home subscriber server (HSS) of the network stores a PVNI for the user device. If a S-CSCF that corresponds to the user device later fails, the network is able to restore the S-CSCF using the information in the HSS, which includes the PVNI.
Claims20
A method for restoring failed server call session control function (S-CSCF) in a telecommunications network, the restoration including a P-Visited-Network-ID (PVNI), comprising:
- receiving, by a home network of the telecommunications network, a request to register a user device that is originated from a visited network of the telecommunications network;
- determining a PVNI for the user device that indicates a geographical area in which the user device is located;
- storing the PVNI for the user device in a home subscriber server (HSS) of the home network;
- assigning the user device to communicate with a first S-CSCF;
- in response to determining that the first S-CSCF has failed, restoring a second S-CSCF based on information from the HSS, including the PVNI for the user device;
- and
- assigning the user device to communicate with the second S-CSCF.
A system, comprising:
- at least one processor;
- and
- at least one memory communicatively coupled to the at least one processor, the at least one memory bearing processor-executable instructions that, upon execution by the at least one processor, cause the system at least to:
- receive a request to register a user device to a telecommunications network;
- determine a P-visited-network-Id (PVNI) for the user device;
- store a PVNI for the user device in a location of the telecommunications network that is separate from a first serving call system control function (S-CSCF);
- assign the user device to communicate with the first S-CSCF;
- and
- in response to determining that the first S-CSCF has failed, restore a second S-CSCF to include the PVNI for the user device.
A non-transitory computer-readable storage medium, bearing computer-executable instructions that, when executed upon a computing device, cause the computing device at least to:
- receive a request to register a user device to a telecommunications network;
- determine a P-visited-network-Id (PVNI) for the user device;
- store a PVNI for the user device in a location of the telecommunications network that is separate from a first serving call system control function (S-CSCF);
- and
- assign the user device to communicate with the first S-CSCF.
Dependencies are inferred from the claim text.