Method for filtering unknown international short message

A technology of short message and short message service, which is applied in the direction of message/mailbox/notification, electrical components, wireless communication, etc., and can solve problems such as unshielding
CN102480703AInactive Publication Date: 2012-05-30BYD CO LTD
5 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
BYD CO LTD
Publication Date
2012-05-30
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a method for filtering an unknown international short message. Inspection processing is carried out on a mobile terminated forward short message (MT_ForwardSmArg) request message from a foreign short message service center and a routing response message that is sent by a national home location register (HLR) to a foreign country at an international gateway bureau of the local country; when last four numbers of a called global title address of a signal connection control part (SCCP) layer of the MT_ForwardSmArg request message are not four national network authentication number, the short message belongs to an invalid short message and filtering processing is carried out. According to the method for filtering an unknown international short message in the invention, it can be avoided that a domestic service provider is attacked by an invalid unknown international short message; users of the domestic service provider can be secured from interferences of foreign garbage messages, so that the domestic network is safer.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of mobile communication, in particular to a method for filtering unknown international short messages. Background technique

[0002] The short message service is economical, convenient and fast, and is widely used among mobile communication system users. However, this service is often used by some foreign competitors to attack the domestic network and transmit some spam information, which brings troubles to users and damages the interests of domestic operators. Some operators in China have found that they are often attacked by unknown spam messages, which is reflected in the fact that they do not initiate a routing request message (SendRoutingInfoSmArg) to find the mobile switching center (MSC) where the called user of the network is located. A small number of unknown foreign Short Message Service Centers (SMSCs) often send Mobile Terminated Forward Short Message (MT_ForwardSmArg for short) messages directly to the M...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More