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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

Inactive Publication Date: 2012-05-30
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem in the prior art that domestic operators cannot shield short messages from foreign unknown SMSCs, the present invention provides a method for filtering illegal and unknown international short messages so that domestic operators can shield offensive short messages from abroad. information

Method used

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  • Method for filtering unknown international short message
  • Method for filtering unknown international short message
  • Method for filtering unknown international short message

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Embodiment Construction

[0022] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] Please refer to figure 1 As shown, if the SMSC (Short Message Service Center) wants to successfully issue the MT_ForwardSmArg (Mobile Termination Short Message Request) message, figure 1 Named in the MAP_MT_FORWARD_SHORT_MESSAGE message, the SendRoutingInfoSmRes (routing response) message must be successfully received, figure 1 Named as MAP_SEND_ROUTING_INFO_FOR_SM_ACK message, if the SendRoutingInfoSmRes message is shielded, the SMSC will not be able to find the location of the called party, so it will not be able to send the MT_ForwardSmArg message.

[0024] If some illegal SMSCs aband...

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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.

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

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Application Information

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IPC IPC(8): H04W4/14H04W12/06H04W12/128
Inventor 罗晶晶
Owner BYD CO LTD
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