Typical problem analysis of MMS systems
MMS (multimedia short message) can include text, graphics, animation, video, audio and other formats, compared with text short messages, multimedia messages provide more colorful content, which greatly enhances communication between people. the way. The MMSC system provided by Huawei company has been widely used online. Figure 1 MMSC structure diagram is understood to understand the MMS message flow, first of all, the basic structure of Huawei MMSC is needed, as shown in Figure 1. MMS belongs to the WAP application layer business, and the business performance is similar to the SMS service. It uses the WAP event processing process, which is the same as the MMSC, and the WAP browsing or download is the same. The MMSC is connected to WAPGW through the HTTP protocol, and the WAPGW is connected to SMSC and implements the issuance of the PUSH notification message. Figure 2 is a point-to-point business process for MMS. Figure 2 MMS point-to-point business process involves terminal, wireless network, WAPGW, MMSC, and SMC systems during normal transmission of MMS messages. Therefore, when the MMS fault analysis and positioning are required, there is a problem based on the problem based on the analysis, and the typical problems of the two types of MMS are analyzed below. 1, the service peak period WAPGW processing ability is limited, resulting in a large number of MMS messages to dream network mailbox [Phenomenon] In the holiday or business peak period, the number of users and SP sends the number of MMS messages, which may be due to WAPGW gateway processing capabilities Insufficient, leading to some users after submitting the MMS message, the recipient cannot receive the MMS Push notification message issued by WAPGW. MMSC does not get MMS messages because the user does not get MMS messages, and users can only receive SMS notification messages from MMS transfer network mailboxes. This phenomenon occurs if an exception in WAPGW is abnormal or an exception in the interface of the WAPGW and the SMS center. [Processing Procedure] When this phenomenon occurs, you can view the MMSC log file in the MMSC Center, such as by pushrun0.log, analyzes MMS to request messages for WAPGW's PUSH request message and WAPGW response message. If the message display
