| 流程编码 | 流程类型 | 标识比特位 （从低位比特开始） | 消息类型 |
1 | Attach | 0 | NAS: ATTACH REQUEST |
1 | NAS: ATTACH ACCEPT | ||
2 | NAS: ATTACH COMPLETE | ||
3 | NAS: ATTACH REJECT | ||
5 | TAU | 0 | NAS: TRACKING AREA UPDATE REQUEST |
1 | NAS: TRACKING AREA UPDATE ACCEPT | ||
2 | NAS: TRACKING AREA UPDATE COMPLETE | ||
3 | NAS: TRACKING AREA UPDATE REJECT | ||
15 | S1 handover in | 0 | S1AP: HANDOVER REQUEST |
1 | S1AP: HANDOVER REQUEST ACK | ||
2 | S1AP: HANDOVER FAILURE | ||
3 | S1AP: HANDOVER NOTIFY | ||
20 | UE context release | 0 | S1AP: UE CONTEXT RELEASE REQUEST |
1 | S1AP: UE CONTEXT RELEASE COMMAND | ||
2 | S1AP: UE CONTEXT RELEASE COMPLETE | ||
30 | Authentication | 0 | NAS: AUTHENTICATION REQUEST |
1 | NAS: AUTHENTICATION RESPONSE | ||
2 | NAS: AUTHENTICATION FAILURE | ||
3 | NAS: AUTHENTICATION REJECT |
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