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Method and apparatus for creating an instance ID based on a unique device identifier

A technology of identifiers and equipment, applied in the direction of electrical components, transmission systems, etc.

Inactive Publication Date: 2011-09-07
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it would be disadvantageous to directly use an existing device identity such as IMEI as an instance ID

Method used

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  • Method and apparatus for creating an instance ID based on a unique device identifier
  • Method and apparatus for creating an instance ID based on a unique device identifier
  • Method and apparatus for creating an instance ID based on a unique device identifier

Examples

Experimental program
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example I

[0107] Instance ID creation when providing DevID protection in UE or network (MSC server)

[0108] As mentioned earlier, a preferred embodiment of the present invention is to protect the DevID at the UE or MSC server even during the registration period. Therefore, DevID will be encoded using the following steps.

[0109] Steps to create an instance ID at UE or network (MSC server) using device specific ID, in this example using IMEI as defined in 3GPP:

[0110] 1. The network and the device choose the same hash algorithm (MD5 or SHA-1).

[0111] This example illustrates the invention using MD5.

[0112] 2. Create DevID by extracting TAC and SNR from IMEI (eg image 3 shown in ). Spare digits were omitted and a total of 14 digits were used. By omitting the spare digits, this method of the present invention also works for IMEISV where the SVN will be omitted. For non-3GPP devices using an identifier other than IMEI, the only criteria for DevID is that it is unique to the d...

example ID

[0150] 7. Registration request (MSC server to I-CSCF) 807 . The purpose of this request is to register the private user identity and the temporary public user identity derived for this subscriber with the S-CSCF in the home network on behalf of the subscriber. This request is routed to the I-CSCF in the home network.

[0151] 8. Cx: user registration status inquiry process 808 . The I-CSCF issues a request for information about the subscriber's registration status by sending the private user identity, public user identity and visited domain name to the HSS. The HSS returns the capabilities required by the S-CSCF, and the I-CSCF uses this information to select a suitable S-CSCF.

[0152] 9. Registration request (I-CSCF to S-CSCF) 809 . The I-CSCF forwards the registration request to the selected S-CSCF.

[0153] 10. Cx: S-CSCF Registration Notification 810 . The S-CSCF notifies the HSS that the user has registered. The HSS shall also include the user profile in the respon...

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Abstract

A method and apparatus for signaling between a device and network. The method comprises the step of generating, by a device, an Instance Identification (ID) that matches an Instance ID used by a network. The apparatus of the present invention includes a means of generating an ID that matches the Instance ID used by the network.

Description

[0001] Related Application Cross Reference [0002] This application claims the benefit of now-pending US Provisional Application 61 / 086908, filed August 7, 2008, the disclosure of which is hereby incorporated herein by reference. Background technique [0003] As used herein, the following acronyms shall have the following meanings: [0004] CS: circuit switched [0005] CSCF: Call Session Control Function [0006] ESN: Electronic Serial Number [0007] GRUU: Globally Routable User Agent (UA) URI [0008] I-CSCF: Query CSCF [0009] ICS: IMS centralized service [0010] ID: identifier [0011] IMEI: International Mobile Equipment Identity [0012] IMS: IP Multimedia Subsystem [0013] IP: Internet Protocol [0014] MEID: Mobile Equipment Identifier [0015] MSC: Mobile Switching Center [0016] NAI: Network Access Identifier [0017] NSS: Namespace Specific Strings [0018] P-CSCF: proxy CSCF [0019] PS: packet switching [0020] S-CSCF: Serving CSCF [0021] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04L65/1016H04L29/06333H04L65/1073H04L29/06217H04L63/0407H04L65/1095
Inventor S·K·施奈尔A·海德马克F·林德霍姆
Owner TELEFON AB LM ERICSSON (PUBL)