CN101242559A - Short message interception method, device and system - Google Patents

Abstract

The invention provides a short message interception method, comprising the following steps: registering a shielding request to a home location register; Message flow to intercept text messages from blocked numbers. The invention also provides a short message interception system. Through the present invention, users can set the shielding of information numbers such as short messages of specific user numbers, spam short messages, and harassing short messages according to their own needs, thereby improving customer satisfaction.

Description

Short message interception method, device and system

technical field

The present invention relates to the communication field, and more specifically, relates to a short message interception method, device and system for realizing a customized function of short message interception and customization.

Background technique

In the mobile network, short message (short message, Short Message) has become a very popular function, has been widely used, and has become a very economical and effective means for mobile users in daily contact.

Short messages are divided into three types of services: point-to-point terminating short messages (MT/PP, telecommunication service 21), point-to-point originating short messages (MO/PP, telecommunication service 22), and cell broadcast short messages (SMSCB, telecommunication service 23). Users can only subscribe to MT/PP and MO/PP short messages, but cannot subscribe to cell broadcast short messages.

The general processing flow of the current short message is shown in FIG. 1 . The italicized message in the attached figure is not applicable to SGSN (Serving GPRS Support Node, Serving GPRS Support Node).

With reference to Fig. 1, mobile origin short message process (MO) is as follows:

(1) Short Message: The mobile terminal sends a short message to MSC (MobileSwitching Center, Mobile Switching Center) or MSCServer (Mobile Switching Center Server) under the softswitch architecture;

(2) Serving MSC (serving MSC) or Serving MSCServer (serving MSC server) under the softswitch architecture sends to VLR (Visit Location Register, visiting location register)

MAP_SEND_INFO_FOR_MO_SMS message, check the contract at VLR, if the contract check is incompatible, conflicts with blocking or conflicts with other supplementary services, it will send an error prompt to MSC or MSC Server under the softswitch architecture, otherwise it will return a message response;

(3) VLR returns a response message to the Serving MSC or the Serving MSCServer under the softswitch architecture, and provides the address information of the Interworking MSC (Interworking MSC) connected to the mobile switching center;

(4) Serving MSC or Serving MSC Server under softswitch architecture initiates MAP_MO_FORWARD_SHORT_MESSAGE to Interworking MSC;

(5) Interworking MSC sends ShortMessage to SMSC (Short Message Center);

(6) SMSC returns message response;

(7) Interworking MSC returns a message response to Serving MSC or Serving MSC Server under the softswitch architecture;

(8) The Serving MSC or the Serving MSC Server under the softswitch architecture returns a short message to the mobile terminal to send a response message (notification of successful sending or sending failure).

Fig. 2 shows the mobile terminal short message flow according to the related technology, wherein the italicized message part in the figure is not applicable to the SGSN.

With reference to Fig. 2, mobile termination short message flow (MT flow) is as follows:

(1) SMSC sends a short message to GMSC (Gateway Mobile Switching Center, GatewayMSC) according to the MSISDN (Mobile Station for International Subscribe Directory Number, the number in the international form of the mobile terminal) of the called number;

(2) GMSC obtains short message routing data to HLR (Home Location Register, home location register) according to the short message that SMSC sends;

(3) HLR responds to the message MAP_SEND_INFO_FOR_MO_SMS_ACK with the MSC address of the called user;

(4) The GMSC forwards the short message to the currently called Serving MSC or the Serving MSC Server under the softswitch architecture according to the Serving MSC or the Serving MSC Server address under the softswitch architecture carried by the returned response message;

(5) Serving MSC or Serving MSC Server under softswitch architecture sends MAP_SEND_INFO_FOR_MT_SMS to VLR;

(6) VLR returns the response message MAP_PAGE/MAP_SEARCH_FOR_MOBILE_SUBSCRIBER;

(7) The Serving MSC where the called party is located or the Serving MSCServer under the softswitch architecture sends Page paging;

(8) Paging response Page Response;

(9) The Serving MSC or the Serving MSC Server under the softswitch architecture sends MAP_PROCESS_ACCESS_REQUEST_ACK/MAP_SEARCH_FOR_MOBILE_SUB_SCRIBER_ACK to the VLR, indicating that the MAP_PROCESS_REQUEST in the VLR is started successfully;

(10) VLR returns a response message MAP_SEND_INFO_FOR_MT_SMS_ACK;

(11) The Serving MSC or the Serving MSC Server under the softswitch architecture sends a short message to the called user;

(12) The mobile terminal returns a short message reception response;

(13) Serving MSC or Serving MSC Server under softswitch architecture sends short message response message MAP_MT_FORWARD_SHORT_MES_SAGE_ACK to GMSC;

(14) GSMC returns a short message response message to SMSC.

With the gradual popularization of the short message service, various situations of using the short message function to send spam short messages, fraudulent short messages and harassing short messages occur from time to time, which bring spiritual and material losses to users. However, the current GSM/WCDMA/CDMA2000 network cannot prevent spam messages, fraudulent messages, and harassing messages from harming users by using the above-mentioned common processing flow for short messages.

How to enable the user to set according to the number to refuse to receive junk messages and harassing messages has become a strong demand of mobile users. Therefore, people need to provide a technical solution for customizing the function of intercepting and customizing text messages based on numbers, realize user-customized function of intercepting and customizing text messages, and realize automatic interception of spam text messages and harassing text messages.

Contents of the invention

The invention aims to provide a method, device and system for intercepting short messages, so as to solve the infringement problem of spam short messages and the like on users.

An embodiment of the present invention provides a method for intercepting short messages, comprising the following steps: registering a shielding request with a home location register; Mobile terminated SMS flow to intercept SMS from blocked numbers.

In the above short message interception method, the shielding request includes a shielded number; and when a short message is received, it is judged whether the short message is from the shielded number, and if it is judged to be yes, the mobile terminal short message process is not initiated to intercept the short message from the shielded number .

In the above short message interception method, the format of the registration request includes a service code and a number that needs to be screened by the short message, and the service code includes: a first service code, which is used to indicate adding a number registration; a second service code, which is used to indicate an inquiry; Three service codes, used to indicate the deletion of registration numbers.

In the above short message interception method, when registering the masked number through the unstructured supplementary service data, the format includes the service access code of the unstructured supplementary service data.

In the above short message interception method, it is judged whether the short message is from a shielded number, and if it is judged to be yes, the process of not initiating the mobile terminal short message specifically includes the following steps: the mobile switching center requests the home location register to obtain the short message routing data, which carries the calling number; the HLR extracts the calling number from the request, and judges whether the calling number is the masked number stored in the HLR, and if so, the HLR carries the failure cause value in the response, so as not to initiate the mobile terminal Receive short message process.

In the above short message interception method, the shielding request includes a gate number; SMS to the number.

In the above-mentioned short message interception method, the format of the registration request includes a service code and a number that needs to be selected for short message gating, and the service code includes: a first service code, which is used to indicate an increase in number registration; a second service code, which is used to indicate an inquiry; The third service code is used to indicate the deletion of the registration number.

In the above short message interception method, when registering the gate number through the unstructured supplementary service data, the registration format includes the service access code of the unstructured supplementary service data.

In the above short message interception method, it is judged whether the short message is from the gating number, and if it is judged as no, the short message process of not initiating mobile termination specifically includes the following steps: the mobile switching center requests the home location register to obtain the short message routing data, which carries Calling number: the HLR extracts the calling number from the request, and judges whether the calling number is the gate number saved in the HLR, if judged as no, the HLR carries the failure reason value in the response, To not initiate the mobile-terminated short message process.

In the above-mentioned method for intercepting short messages, the shielding request includes keywords; and when receiving a short message, it is judged whether the short message contains keywords, and if it is judged to be yes, the mobile terminal short message process is not initiated to intercept short messages containing keywords .

In the above short message interception method, it is judged whether the short message contains keywords, and if it is judged to be yes, then the short message flow process of not initiating mobile termination specifically includes the following steps: in the MO flow process, inquire whether the content of the MO short message contains the home location register The saved keyword; and if it is judged to be yes, return a failure message so as not to initiate the mobile-terminated short message process.

Another embodiment of the present invention provides a system for intercepting short messages, including: a home location register for registering a shielding request; and a mobile switching center for judging whether the short message meets the shielding request when receiving a short message, and Determines whether to not initiate a mobile terminated SMS process to intercept SMS messages from blocked numbers.

In the above short message interception system, the shielding request includes the shielded number; and when the mobile switching center receives the short message, it is judged whether the short message is from the shielded number, and if it is judged to be yes, the short message process of mobile termination is not initiated to intercept the short message from the shielded number. SMS number.

In the above-mentioned short message interception system, the shielding request includes the gate number; Text messages from non-gated numbers.

In the above-mentioned short message interception system, the shielding request contains keywords; Word SMS.

The embodiment of the present invention also discloses a short message interception device, including a judging unit and a command unit, wherein the judging unit is used to judge whether the short message meets the requirements according to the information in the storage unit when receiving the short message sent by the user terminal. The shielding request; the command unit is used to determine whether not to initiate a mobile-terminated short message process according to the judgment result, so as to intercept the short message.

Through the above, these embodiments of the present invention have achieved the following technical effects:

Through the implementation of the above scheme, through the user setting, the receiving permission for the short message of the specific number can be realized, and the spam message shielding based on the content of the short message can be realized, so that the user can set the short message for the specific user number, the spam message, Blocking of harassing text messages and other information numbers improves customer satisfaction.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 shows the flow chart of the short message process of mobile origination according to the related art;

Fig. 2 shows the flow chart of the mobile terminal short message process according to the related art;

Fig. 3 shows the message flowchart of the USSD subscription process according to the embodiment of the present invention;

FIG. 4 shows a message flow diagram of adding MT processing according to an embodiment of the present invention;

Fig. 5 shows the flow chart of the short message intercepting method according to the embodiment of the present invention;

Fig. 6 shows the flowchart of the short message intercepting method according to one embodiment of the present invention;

Fig. 7 shows the flowchart of the short message intercepting method according to one embodiment of the present invention;

Fig. 8 shows the flowchart of the short message intercepting method according to one embodiment of the present invention;

FIG. 9 shows a message flow chart of the short message interception method according to FIG. 8 .

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

Fig. 5 shows the flowchart of the short message intercepting method according to the embodiment of the present invention, comprises the following steps:

Step S502, registering the shielding request with the HLR; and

Step S504, when the mobile switching center receives the short message, it judges whether the short message satisfies the shielding request, and determines whether to initiate the mobile termination short message process according to the judgment result, so as to intercept the short message from the shielded number.

The shielding request can include three situations, 1) shielding short messages from a specific number; 2) screening short messages from a specific number; 3) shielding short messages containing specific words. The embodiments of the above three cases of the present invention will be respectively described below in conjunction with the description of FIG. 6 to FIG. 9 .

Fig. 6 shows the flowchart of the short message intercepting method according to one embodiment of the present invention, and it comprises the following steps:

Step S602, register the masked number information including the masked number; and

Step S604, when the mobile switching center receives the short message, judge whether the short message is from the shielded number, if the short message is from the shielded number, then terminate the MT process to intercept the short message from the shielded number.

Optionally, the registration format includes a service code and a number that needs to be screened by a short message. The service code includes: a first service code, used to indicate adding a number registration; a second service code, used to indicate an inquiry; a third service code, used to Indicates to delete the registration number. For example, the registration format is " ^* xy ^* z ^* 13xxxxxxxxx#", where xy is the USSD service access code; z is the service code; 13xxxxxxxxx is the number that needs to be blocked by SMS. When z is 1, it means adding number registration, when it is 2, it means query, when it is 3, it means delete registration number, among them, the query of all registration numbers is: ^* xy ^* 2#, and the query according to the registration sequence is: ^* xy ^* 2 ^* 1#, delete at one time All numbers are: ^* xy ^* 3#, deleted in order to be ^* xy ^* 3 ^* 1#.

Optionally, the shielded number is stored in the HLR through USSD (Unstructured Supplementary Service Data, unstructured supplementary service data) or website or business hall business system or telephone registration shielded number information. When registering a masked number through USSD, the registration format includes the USSD service access code.

Optionally, the maximum number of shielded numbers that a user can register is pre-defined. Because of the limitation of processing capacity, it is generally necessary to limit the number of registered masked numbers for each user. For example, a user can register up to 10 blocked numbers.

Optionally, step S604 includes the following steps: the mobile switching center requests the home location register to obtain the short message routing data, which carries the calling number; the home location register extracts the calling number from the request, and determines whether the calling number is the home location register If it is the masked number saved in the HLR, the HLR will carry the failure reason value in the response, so as not to initiate the mobile termination short message process. For example, the mobile switching center obtains the routing data of the short message to the HLR. At this time, the SMC carries the calling number in addition to the original mobile terminal number and IMSI (International Mobile Subscriber Identity, International Mobile Subscriber Identity) in the MAP_SEND_ROUTING_INFO_FOR_SM message; SMS routing message, extract the calling number in the message and make a judgment, check whether the called number is the shielded number saved in the HLR, if so, the HLR sends MAP_SEND_ROUTING_INFO_FOR_SM_ACK to carry the failure reason value, and the MT process terminates.

The current short message service cannot customize the short message interception function that customers need for specific users according to customer needs. This embodiment provides a customized short message interception customization function to realize the customer's specific user number, spam short message, useless short message and harassing short message Interception, improve customer satisfaction.

This embodiment needs MSC (2G/3G mobile switching center) in GSM/WCDMA/CDMA network, MSC Server (mobile softswitching center under 2G/3G softswitching framework), HLR (home location register) and SMSC (short message Center) and other network devices combined with USSD services to realize the user's SMS interception function for specific numbers.

In this embodiment, the specific steps for increasing the function of intercepting and customizing customized text messages are as follows:

First, the user registers the specific number information through USSD (for example, the user registers through ^* 99 ^* 1 ^* 13612345678#):

Through the user USSD registration, the user has saved the customization of the information of the specific user number (13612345678 in this example) in the HLR, and increases the judgment of the specific number in the MT process, and the specific process is described in the following embodiments.

For example, the following definition is added to the format of the user registering the SMS blocking number through USSD:

Registration format: ^* xy ^* z ^* 13xxxxxxxxx#

Among them: xy is the USSD service access code, which needs to be defined. For example, the access code is defined as 99; z is the service code, which is 1 to add a number registration, 2 to query, and 3 to delete a registration number.

You can query all registration numbers such as: ^* xy ^* 2#, or query by registration sequence such as: ^* xy ^* 2 ^* 1#

13xxxxxxxxx is the number that needs to be blocked by SMS. You can delete all numbers at once, such as: ^* xy ^* 3#, or you can delete ^* xy ^* 3 ^* 1# in order.

Considering the limitation of processing capacity, it is recommended that users can register up to 10 blocked numbers.

At the same time, according to the characteristics of the current spam messages, the registration support for wildcard characters (such as ^* xy ^* z ^* 6 ^* #) is added.

The process of adding MT is as follows:

1) The mobile switching center obtains the SMS routing data from the HLR. At this time, the SMC needs to carry the calling number in addition to the original mobile terminal number and IMSI in the MAP_SEND_ROUTING_INFO_FOR_SM message.

2) The HLR responds to the SMC to get the SMS routing message, extracts the calling number in the message and makes a judgment, checks whether the called number has signed a contract in the HLR to shield the calling number, if so, the HLR sends MAP_SEND_ROUTING_INFO_FOR_SM_ACK to carry the failure reason value, The MT process is terminated. If the HLR does not detect the screening of the calling number, it will be processed according to the normal MT process.

Customized SMS service interception customization function setting can be set not only by the user through the USSD service on the mobile terminal, but also through the user self-service website. At the same time, the relevant specific number SMS interception can be set in the business hall or by dialing the customer hotline , Realize the shielding of information such as text messages, spam text messages, and harassing text messages of specific user numbers.

At the same time, according to the SMS receiving requirements of a specific customer for a specific user, the user can receive SMS only for a specific number through the settings in the HLR. It is necessary to add the analysis and judgment of the MO number before the MT process.

Fig. 7 shows the flow chart of the short message intercepting method according to this scheme, comprises the following steps:

Step S702, registering the gate number with the home location register; and

Step S704, when the mobile switching center receives the short message, it judges whether the short message is from the gate number, if it judges no, it does not initiate the mobile termination short message process, so as to intercept the short message from the non-gate number.

The registration format may include a service code and a number that requires SMS gating, and the service code may include: the first service code, which is used to indicate adding a number registration; the second service code, which is used to indicate an inquiry; the third service code, which is used to indicate Delete the registration number.

When registering a gate number through USSD, the registration format may also include a USSD service access code.

It is also possible to pre-define how many gate numbers a user can register at most.

Step S704 may include the following steps: the mobile switching center requests the home location register to obtain the short message routing data, which carries the calling number; the home location register extracts the calling number from the request, and judges whether the calling number is saved in the home location register If the judgment is no, the home location register carries the failure cause value in the response, so as not to initiate the mobile termination short message process.

According to the requirements of short message business development, information shielding based on short message content can also be realized in the implementation of technical solutions.

Fig. 8 shows the flowchart of the short message intercepting method according to one embodiment of the present invention, comprises the following steps:

Step S802, registering keywords in the HLR; and

Step S804, when the mobile switching center receives the short message, it judges whether the short message contains keywords, and if it judges yes, it does not initiate the mobile termination short message process to intercept short messages containing keywords.

The keywords may include keywords defined by the user as belonging to spam text messages, fraudulent text messages, and harassing text messages.

The registration format may include a service code and a number that requires SMS gating, and the service code may include: the first service code, which is used to indicate adding a number registration; the second service code, which is used to indicate an inquiry; the third service code, which is used to indicate Delete the registration number.

It is also possible to pre-define how many words each keyword can include at most.

Step S804 may include the following steps: the mobile switching center inquires whether the MO short message content contains the keyword saved in the home location register in the MO process, and if it is judged to be yes, then return a failure message, so as not to initiate the mobile termination short message process .

Fig. 9 shows the message flowchart according to the short message intercepting method of Fig. 8, comprises the following steps:

First, the user sends the message content based on keywords and character strings in a special SMS.

For example, all text messages containing the word "passion" need to be regarded as spam text messages, then when intercepting text messages, the interception request can be sent to the mobile switching center based on a specific method (such as: ^* xy ^* z ^* passion#). in:

"xy" is the service access code, which needs to be defined, such as defining the access code as 89;

"z" is the service code, which is 1 for adding number registration, 2 for query, and 3 for deleting registered characters or keywords.

"Passion" is the blocking keyword and key characters that need to be set. The number of characters needs to be set according to the load capacity of the mobile switching center equipment. It is recommended to enter no more than 8 characters (both Chinese and English can be supported).

The mobile switching center adds a judgment based on the content of the short message in the MO process. If the query MO short message contains the keyword registered by the customer, a failure message is returned to the MSC, and the MT process is terminated at the same time.

Regulatory departments and operators can set up complaint numbers to receive registration text messages sent by users to facilitate interception of spam text messages. It is also possible to consider setting up a spam SMS complaint number for MMS to strengthen the interception of MMS spam MMS.

An embodiment of the present invention also provides a short message interception system, including: a home location register, including a storage unit, for registering a shielding request; The information stored in the storage unit is used to judge whether the short message meets the shielding request, and also includes a command unit, which is used to determine whether to initiate a mobile termination short message process according to the result of the judgment unit, so as to intercept the short message from the shielded number.

In the above short message interception system, the shielding request can include a shielded number; when the mobile switching center receives the short message, it judges whether the short message is from the shielded number, and if it is judged to be yes, it does not initiate the mobile termination short message process to intercept the short message from the shielded number. SMS number.

In the above short message interception system, the shielding request can include the gate number; when the mobile switching center receives the short message, it judges whether the short message is from the gate number, if it is judged as no, it does not initiate the mobile termination short message process to intercept Text messages from non-gated numbers.

In the above-mentioned short message interception system, the shielding request may contain keywords; when the mobile switching center receives the short message, it judges whether the short message contains keywords, and if it is judged to be yes, it does not initiate the mobile termination short message process to intercept the short message containing the key words. Word SMS. The above telephone numbers in digital form are stored in the first unit of the storage unit, and keywords are stored in the second unit.

The invention also discloses a short message interception device, which can be built into a mobile switching center, a short message center or an HLR, or can be an independent physical entity, including a judging unit, which is used to store a short message according to the information stored in the HLR when a short message is received. The information saved by the unit is used to judge whether the short message meets the shielding request, and also includes a command unit, which is used to determine whether to initiate the mobile terminal short message process according to the result of the judgment unit, so as to intercept the short message from the shielded number. A notification unit may also be included, which is used to return to the user a message that sending the short message fails.

From the above description, it can be seen that the present invention achieves the following technical effects:

Through the implementation of the above scheme, through the user setting, the receiving permission for the short message of the specific number can be realized, and the spam message shielding based on the content of the short message can be realized, so that the user can set the short message for the specific user number, the spam message, Blocking of harassing text messages and other information numbers improves customer satisfaction.

At the same time, the provision of this service can be used as a supplementary service to charge customers for use and increase the operator's revenue and profit.

Obviously, those skilled in the art should understand that each module or each step of the above-mentioned present invention can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed in a network formed by multiple computing devices Optionally, they can be implemented with program codes executable by computing devices, thus, they can be stored in storage devices and executed by computing devices, or they can be made into individual integrated circuit modules, or they can be integrated into Multiple modules or steps are fabricated into a single integrated circuit module to realize. As such, the present invention is not limited to any specific combination of hardware and software. It should be understood that changes in these specific implementations are obvious to those skilled in the art and do not depart from the spirit protection scope of the present invention.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (13)

1. A short message interception method, is characterized in that, comprises the following steps: registering a masking request with the HLR; and After receiving the short message, the mobile switching center judges whether the short message satisfies the shielding request, and determines whether to initiate a mobile termination short message process according to the judgment result, so as to intercept the short message from the shielded number. 2. short message interception method according to claim 1, it is characterized in that, described shielding request comprises shielding number; And when described mobile switching center receives short message, judges whether described short message is from described shielding number, if judges If yes, the short message process of mobile termination is not initiated to intercept the short message from the shielded number. 3. short message interception method according to claim 2, it is characterized in that, judge whether described short message is from described shielding number, if judged as yes, then do not initiate mobile termination short message process and specifically comprise the following steps: The mobile switching center requests the home location register to obtain short message routing data, which carries the calling number; The HLR extracts the calling number from the request, and judges whether the calling number is the shielded number stored in the HLR, and if so, the HLR responds carries the failure reason value, and does not initiate the mobile termination short message process. 4. short note interception method according to claim 1, is characterized in that, described screening request comprises gate number; And described mobile switching center, when receiving note, judges whether described note is from described gate number, If it is judged as no, then the short message process of mobile termination is not initiated, so as to intercept the short message from the non-selected number. 5. short message interception method according to claim 4, is characterized in that, judges whether described short message is from described gate number, if judged as no, then does not initiate mobile termination short message process and specifically comprises the following steps: The mobile switching center requests the home location register to obtain short message routing data, which carries the calling number; The home location register extracts the calling number from the request, and judges whether the calling number is the gate number stored in the home location register, and if it is judged to be no, the home location register carries the Failure cause value, so as not to initiate the mobile-terminated short message process. 6. The short message intercepting method according to claim 1, 2, 3, 4 or 5, wherein the format of the registration request includes a service code, and the service code includes: a first service code, which is used to indicate an increase number registration; the second service code is used to indicate query; the third service code is used to indicate deletion of the registration number. 7. The short message intercepting method according to claim 1, 2, 3, 4 or 5, wherein when registering the shielded number or gate number through unstructured supplementary service data, the format includes unstructured The service access code of the supplementary service data. 8. short note interception method according to claim 1, is characterized in that, described shielding request comprises keyword; And described mobile switching center, when receiving note, judges whether described note comprises described key word, if judges If yes, the short message process of mobile termination is not initiated, so as to intercept the short message containing the keyword. 9. short message intercepting method according to claim 8, is characterized in that, judges whether described short message comprises described keyword, if judged as yes, then does not initiate mobile termination short message process and specifically comprises the following steps: Querying whether the MO short message content contains the keyword stored in the HLR during the MO process; and If it is judged as yes, a failure message is returned, and the mobile-terminated short message process is not initiated. 10. A short message interception system is characterized in that, comprising: The HLR, including a storage unit, is used to receive and store the masking request of the user; and The mobile switching center includes a judging unit and a command unit, wherein the judging unit is used to judge whether the short message satisfies the shielding request according to the information in the storage unit when receiving the short message sent by the user terminal; The judging result is to determine whether not to initiate the mobile termination short message process to intercept the short message. 11. short message interception system according to claim 10, is characterized in that, described storage unit comprises first unit and/second unit, and wherein first unit is used for preserving the telephone number of digital form; Second unit is used for preserving Key words. 12. A kind of note intercepting equipment, it is characterized in that, comprise judging unit and command unit, wherein judging unit is used for when receiving the short note that user terminal sends, judges whether described short message satisfies described short message according to the information in described storage unit Shielding request; the command unit is used to determine whether not to initiate the mobile terminal short message process according to the judgment result, so as to intercept the short message. 13. The device according to claim 12, characterized in that, the device is an independent physical entity; or built in a mobile switching center, a short message center or a home location register,

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