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GSM 09.02 - Version 5.3.0 - Digital cellular telecommunications - ETSI

GSM 09.02 - Version 5.3.0 - Digital cellular telecommunications - ETSI

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Page 302<br />

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

4<br />

no<br />

yes<br />

1<br />

Authentication_<br />

required<br />

Authenticate_<br />

VLR<br />

OK<br />

Set radio<br />

contact flag<br />

to confirmed<br />

Update_LAI<br />

HLR<br />

updating<br />

required<br />

Location_<br />

_update_<br />

_completion_VLR<br />

Update<br />

register<br />

yes<br />

no<br />

OK<br />

new attempt<br />

with IMSI<br />

2<br />

Error<br />

yes<br />

yes<br />

no<br />

Illegal_subscriber<br />

TMSI_used<br />

Set error to<br />

illegal<br />

subscriber<br />

Unknown_subscriber<br />

Delete<br />

subscriber<br />

Set error to<br />

unknown<br />

subscriber<br />

MAP_UPDATE_LOCATION_AREA_Rsp,<br />

MAP_CLOSE_Req<br />

Procedure_error<br />

Set error to<br />

system failure<br />

Figure 16.1.1/6 (sheet 2 of 4): Process Update_Location_Area_VLR<br />

no<br />

Null

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