CN1564546A - Method of intercepting and transmitting short messages - Google Patents

Abstract

ISMG gateway router monitors any received data packets of going to inside or need of forwarding. Content of any received IP data packet received by IP protocol stack is checked to see whether its content is a short message; if no, the packet is sent to module in upper layer to process or forward; if yes, content of the short message is picked up and converted to corresponding format, then forwarded to short message server for filtering. The invention possesses features of flexibility and extensibility.

Description

The method that a kind of SMS interception is transmitted

Technical field

What the present invention relates to is the method that a kind of SMS interception in the 3G system is transmitted.

Background technology

Epoch, society improved in development.People's communication level is more and more higher, is delivered a letter by initial flying pigeon, to telephone, changes automatic switching into from artificial wiring again, develops into wireless telecommunications from wire communication again.From the beeper to the mobile telephone, arrive GSM and CDMA again, shown the great development of communication field invariably.Present 3G system constantly grows up strong and sturdy as the baby in the cradle.Many application have been arranged abroad, and obtained success.Comparatively speaking, 3G had forte than former any means of communication.Although it also is baby in long clothes, its development prospect and growth momentum but are to attract attention for common people.

In network technology and use growing today, diverse network is used and is emerged in an endless stream.The advantage of superior functionality that the 3G system is had and high reliability, two-forty or the like each side is leading a kind of trend and trend, believes in the near future, and 3G one is worldwide leading surely.In numerous applications of 3G, note is exactly a very important use.Anything all has its dual character, and note also can exert an adverse impact when bringing convenience to people.Some speeches unsound or reaction also can be propagated by way of short messages, bring very big harm to society.Given this, we have taked the strategy of " filtering short message " in the 3G system, purify our environment thus." filtering short message " is the system of a more complicated, and this paper does not relate to the specific strategy problem of filtering short message, and how the main points that this paper relates to just carry out the interception and the forwarding problems of note in the 3G system.

Summary of the invention

We realize this control forwarding strategy on gateway router.Can be on gateway router to anyly monitoring of receiving to packet inner or that need to transmit.Our interception forwarding strategy just is being based on this.

Technical scheme of the present invention is: the method that a kind of SMS interception is transmitted is characterized in that:

On the ISMG gateway router to anyly monitoring of receiving to packet inner or that need to transmit;

When IP stack is received any IP packet of coming in, check whether its content is short message content, if not, then it is given upper layer module and handle or transmit;

If, then the note partial content is extracted, then it is converted to corresponding form and is transmitted to short message server, carry out filtration treatment by it, and the initial IP packet of receiving is transmitted according to its destination.

The method that aforesaid SMS interception is transmitted is characterized in that: take the UDP mode to give short message server with forwards.

If carry out SMS interception from sms center, then need to coordinate with operator, the operation meeting of system impacts operation system.

The present invention theoretically with technical all be feasible, and safe and reliable, have very big flexibility and very strong extensibility.

Description of drawings

Fig. 1 is that the SMS interception of the embodiment of the invention is transmitted the scheme schematic diagram.

Fig. 2 is that the note of Fig. 1 is transmitted the processing basic flow sheet.

Embodiment

As previously mentioned, our SMS interception forwarding strategy is based upon on the gateway router basis.General frame structure such as top shown in Figure 1.To be presented in our the 3G system below in detail is (also being basic procedure shown in Figure 2) of how to realize the interception and the forwarding of note.

We monitor at the note between SP (messaging service provider) and the ISMG (internet short message gateway).At home, note mainly contains two big camps at present: China Mobile and CHINAUNICOM.They have the short message protocol CMPP and the SGIP of the comparative maturity of oneself respectively.Carrying out the note transmission between SP and ISMG all is to have taked the TCP ways of connecting.According to its agreement, they transmit on fixed port respectively.And, oneself messaging format is all arranged separately.Given this, our SMS interception has just had foundation.Be concrete processing method below:

For the IP message of receiving from Ethernet interface, at first check whether be the TCP message, if not the subsequent treatment work of then carrying out IP stack.If the TCP message, check that then whether the destination interface of TCP and source port are that (in the realization of program, these port numbers are configurable and extendible for the port numbers of knowing of defined in China Mobile and the CHINAUNICOM's agreement.Like this, program just has bigger flexibility and adaptability.As long as any change does not take place agreement itself, port numbers changes, and our program does not just need to do any change, and only need doing, simple configuration just can adapt to this variation fully).Know port numbers if not above said, then carry out the subsequent treatment work of IP stack.Otherwise carry out following work:

(1) if defined knows port numbers in the CMPP agreement of China Mobile, then according in its agreement about the regulation of messaging format, resolve for the note bag, extract relevant information, be converted into the message format that to discern with the filtering short message device then, and the short message server that is transmitted to appointment is handled.

(2) if defined knows port numbers in the SGIP agreement of CHINAUNICOM, then according in its agreement about the regulation of messaging format, resolve for the note bag, extract relevant information, be converted into the message format that to discern with the filtering short message device then, and the short message server that is transmitted to appointment is handled.

After handling these steps, also need former IP message is continued to be forwarded to corresponding target ground.

Need to prove: give the backstage short message server with forwards, what we taked is the UDP mode.It is better than taking the TCP mode to take the UDP mode.Though TCP is the Data transmission bag of high reliability, (hang dead or have little time response) if unusual such as server processes, will produce a very large impact for our subsequent treatment of router itself, even cause router to paralyse.If but take the UDP mode, just can there be the problems referred to above, system can consign to packet corresponding target ground as possible, and can not influence the process of current execution and follow-up processing.

In addition, for other sms sps, also have related specifications, we also will equally handle according to above-mentioned flow process.In our the concrete processing procedure, the port numbers of each manufacturer explanation can be completely fixed, but can dispose, facilitate like this and manage and expand.

Advantage

The interception of carrying out note between ISMG is compared in the interception forwarding of taking to carry out note between SP and ISMG, and following these advantages are arranged:

The final destination of the note that the user submits to is certain SP, rather than certain ISMG.This just means to monitor at SP end to have better convenience.Because the note that the user submits to is finally handled on SP.As long as SP can receive note, it must be handled, and the filtering short message device also can monitor simultaneously.This means that also SP will not receive note if run into the situation that network failure causes SMS to send or to lose, and same filtering short message device can not handled yet---because this has not been the problem of SP itself.User's note is (perhaps by a plurality of ISMG) from SMC (sms center is as mobile phone) to ISMG, arrive final destination SP, might cause the situation of data-bag lost during this because of network traffic problem.This truly has generation in reality.In (particularly some major holidays, as the Spring Festival) the easiest generation of this situation festivals or holidays.According to statistics, in 2004, only the mobile subscriber just had nearly 10,000,000,000 notes of transmission in 7 day time during the Spring Festival.Particularly, the SMS transmission usually occurs and do not go out the situation that phone does not get through yet in that day at New Year's Eve.In the case, if carry out message monitoring between SMC and ISMG, compare situation about monitoring between SP and ISMG, flow must increase severely.Thereby cause filter loading huge.And, can cause losing a lot of data messages because flow is too big, also can handle because of having little time simultaneously, and be forced to abandon the note that some should be processed.If monitor between SP and ISMG, this situation will be better.Because it is to lack after all that the data traffic between SP and ISMG is compared the flow between SMC and the ISMG, particularly when flow was big, it is clearer that this advantage will embody.

Claims (2)

1, a kind of method of SMS interception forwarding is characterized in that:

On the ISMG gateway router to anyly monitoring of receiving to packet inner or that need to transmit;

When IP stack is received any IP packet of coming in, check whether its content is short message content, if not, then it is given upper layer module and handle or transmit;

If, then the note partial content is extracted, then it is converted to corresponding form and is transmitted to short message server, carry out filtration treatment by it, and the initial IP packet of receiving is transmitted according to its destination.

2, the method for SMS interception forwarding as claimed in claim 1 is characterized in that: take the UDP mode to give short message server with forwards.