General Packet Radio Service GPRS
General Packet Radio Service GPRS
General Packet Radio Service GPRS
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MS UTRAN new SGSN old SGSN GGSN EIR<br />
new<br />
MSC/VLR HLR<br />
1. Attach Request<br />
3. Identity Request<br />
3. Identity Response<br />
4. Authentication<br />
5. IMEI Check<br />
8. Attach Accept<br />
9. Attach Complete<br />
C1<br />
2. Identification Request<br />
2. Identification Response<br />
6a. Update Location<br />
6d. Insert Subscriber Data<br />
6b. Cancel Location<br />
6c. Cancel Location Ack<br />
6e. Insert Subscriber Data Ack<br />
6f. Update Location Ack<br />
7a. Location Update Request<br />
7h. Location Update Accept<br />
10. TMSI Reallocation Complete<br />
Attach Combinado <strong>GPRS</strong>/IMSI<br />
7b. Update Location<br />
7c. Cancel Location<br />
7d. Cancel Location Ack<br />
7e. Insert Subscriber Data<br />
7f. Insert Subscriber Data Ack<br />
7g. Update Location Ack<br />
old<br />
MSC/VLR<br />
<strong>GPRS</strong> 18
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