流程信令解码分析 本文主要就MMC流程中的主被叫信令解码进行重点IE分析,并加以标注,以助于网优人员通过查看信令快速有效定位问题。 下面分别对主被叫流程中的信令进行分别讲解: 1.以从深圳现网的Outum中抓取的完整主叫流程为例: 完整的MOC流程: ↑ (无线资源控制)RRC Connection Request 10:18:33.109 ↓ RRC Connection Setup 10:18:33.828 ↑ RRC Connection Setup Complete 10:18:33.828 ↑ CM Service Request 10:18:34.875 ↓ Authentication Request 10:18:34.875 ↑ Authentication Response 10:18:34.875 ↓ Identity Request 10:18:34.875 ↑ Identity Response 10:18:34.875 ↓ Security Mode Command 10:18:35.859 ↑ Security Mode Complete 10:18:35.859 ↑ Setup 10:18:35.875 ↓ TMSI Reallocation Command 10:18:35.875 ↑ TMSI Reallocation Complete 10:18:35.875 ↓ Call Proceeding 10:18:36.890 ↓ Radio Bearer Setup (DL-DCCH) 10:18:40.765 ↑ Radio Bearer Setup Complete 10:18:41.578 ↓ Alerting 10:18:42.453 ↓ Connect 10:18:43.484 ↑ Connect Acknowledge 10:18:43.484 ↓ Status Enquiry 10:18:43.484 ↑ Status 10:18:43.484 ↑ disconnect 10:19:3.484 ↓ Release 10:19:4.281 ↑ Release Complete 10:19:4.281 ↓RRC Connection Release (DL-DCCH) 10:19:4.281 ↓RRC Connection Release (DL-DCCH) 10:19:4.281 ↑ RRC Connection Release Complete 10:19:4.281 ↓RRC Connection Release (DL-DCCH) 10:19:4.281 ↑ RRC Connection Release Complete 10:19:4.281
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