10.12.2012 Views

GSM 09.02 - Version 5.3.0 - Digital cellular telecommunications - ETSI

GSM 09.02 - Version 5.3.0 - Digital cellular telecommunications - ETSI

GSM 09.02 - Version 5.3.0 - Digital cellular telecommunications - ETSI

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

21.5.5 Process Obtain_Auth_Sets_HLR<br />

Page 633<br />

<strong>GSM</strong> <strong>09.02</strong> <strong>Version</strong> <strong>5.3.0</strong>: August 1996<br />

Opening of the dialogue is described in the macro Receive_Open_Ind in subclause 21.1, with outcomes:<br />

- reversion to version one procedure;<br />

- procedure termination; or<br />

- dialogue acceptance, with proceeding as below.<br />

This process is used by the HLR to obtain authentication triplets from the AuC, upon request from the VLR.<br />

The process acts as follows:<br />

- a MAP_SEND_AUTHENTICATION_INFO indication is received by the HLR;<br />

- the HLR checks the service indication for errors. If any, they are reported to the VLR in the<br />

MAP_SEND_AUTHENTICATION_INFO response. If no errors are detected, authentication triplets<br />

are fetched from the AuC. Further details are found in TS <strong>GSM</strong> 03.20;<br />

- if errors are detected they are reported to the VLR in the MAP_SEND_AUTHENTICATION_INFO<br />

response. Otherwise the authentication triplets are returned.<br />

The process is described in figure 21.5/5.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!