Enhancement of core network security for illegitimate devices
AssigneeBoost SubscriberCo L.L.C.
InventorsXiangang Dai, Dawood Shahdad
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Abstract
The present teachings disclose a system and method for accessing a cellular network system including: checking, at a Serving Call Session Control Function (SCSCF), legitimacy of an International Mobile Equipment Identity (IMEI) included in an registration request with an Equipment Identity Register (EIR) check; determining a SCSCF action based on a response code of an EIR response from the EIR check; and performing the SCSCF action, wherein the registration request comprises an IP Multimedia Subsystem (IMS) REGISTER.
Claims18
A method for accessing a cellular network system, the method comprising:
- checking, at a Serving Call Session Control Function (SCSCF), legitimacy of an International Mobile Equipment Identity (IMEI) included in an registration request with an Equipment Identity Register (EIR) check;
- determining a SCSCF action based on a response code of an EIR response from the EIR check;
- and
- performing the SCSCF action,
- wherein the registration request comprises an IP Multimedia Subsystem (IMS) REGISTER and the checking comprises getting the IMEI from a communication protocol header in the IMS REGISTER.
A system to access a cellular network system, the system comprising:
- an Equipment Identity Register (EIR) to check a legitimacy of the IMEI;
- and
- a Serving Call Session Control Function (SCSCF) to receive a registration request for an International Mobile Equipment Identity (IMEI),
- wherein the SCSCF determines a SCSCF action based on a response code of an EIR response to an EIR check performed by the EIR for the IMEI,
- the SCSCF performs the SCSCF action, and
- the registration request comprises an IP Multimedia Subsystem (IMS) REGISTER, wherein the SCSCF gets the IMEI from a communication protocol header in the IMS REGISTER.
Dependencies are inferred from the claim text.