CN1984360A - Method, apparatus and system for intercepting SMS - Google Patents

Abstract

The invention provides a method for implementing short message interception. The method comprises: the short message center receives a short message whose destination address is a certain user; the short message center sends the source address of the short message to the home location register to which the user belongs; The location register judges whether the source address of the short message is the same as the source address that a certain user is allowed to receive short messages from, and instructs the short message center when it is judged that it is different from all the source addresses that the user is allowed to receive short messages from Discard short messages. By using the method of the invention, the user can avoid harassment from all unknown users and completely reject all illegal users by providing the source address from which the short message is permitted to be received. The invention also provides corresponding equipment and system for implementing short message interception.

Description

Method, device and system for implementing short message interception

field of invention

The present invention relates to short message interception, more specifically, to a method, device and system for implementing short message interception.

Background technique

Now, with the increasing number of Internet service providers (ISP, Internet Services Provider), short message terminals such as mobile phones receive more and more spam messages, which are usually deceptive information, unhealthy information or advertising information. However, the current communication system cannot effectively filter or intercept short messages, so end users can only passively receive these spam short messages, which is not desired by users and may cause losses to users.

A kind of prior art method is to adopt blacklist technology to intercept, that is: once the terminal user receives the spam short message, just put the caller of this spam short message on the terminal, such as A, into the blacklist, and everything sent by A in the future All short messages for the terminal user will be discarded, so that the short message from A cannot reach the terminal user. However, due to the uncertainty of the source address of the original short message, the end user may know its source only after receiving the short message; in fact, the first short message may bring losses to the user, so this The method has hysteresis and does not fundamentally solve the problem. In addition, there are still some multimedia messages from the WAP network at present. For this type of short message, the mobile terminal cannot know the exact source of the short message from the received short message sometimes, and the terminal user cannot blacklist its source address. It can only be received passively all the time.

Contents of the invention

The purpose of the present invention is to provide means for thoroughly filtering junk short messages and rejecting junk short messages.

According to a first aspect of the present invention, a method for implementing short message interception is provided, the method comprising:

The short message center receives short messages whose destination address is a certain user;

The short message center sends the source address of the short message to the home location register to which the user belongs;

The home location register judges whether the source address of the short message is the same as a source address from which the user is permitted to receive short messages, and indicates that the short message is different from all source addresses from which the user is permitted to receive short messages. The center discards the short message.

According to the second aspect of the present invention, a short message center is provided, including a device for receiving a short message whose destination address is a certain user; a device for sending the source address of the short message to the home location register to which the user belongs; and, according to A device for operating in response to the home location register, wherein the home location register judges whether the source address of the short message is the same as the source address of a certain user who is allowed to receive short messages from it; When the source addresses of different sources are all different, a response instructing the short message center to discard the short message is returned.

According to a third aspect of the present invention, a home location register is provided, including a device for receiving a source address of a short message from a short message center, wherein the destination address of the short message is a user belonging to the home location register; and, judging the short message Whether the source address of the message is the same as the source address from which the user is permitted to receive short messages, and if it is judged to be different from the source addresses from which all the users are permitted to receive short messages, instruct the short message center to discard the short message device.

According to a fourth aspect of the present invention, a system is provided, comprising the short message center as described in the second aspect and the home location register as described in the third aspect.

Utilizing the invention, the user can avoid being harassed by all unknown users and reject all illegal users completely by providing the source address from which the short message is permitted to be received.

Brief description of the drawings

By way of example only, preferred embodiments of the invention are described in more detail with reference to the accompanying drawings, in which:

Fig. 1 schematically illustrates the flow chart that realizes short message interception according to the preferred embodiment of the present invention;

Fig. 2 is a schematic illustration according to a flow chart of the preferred embodiment of the present invention to subscribe to the short message interception service;

Fig. 3 is a schematic illustration according to a preferred embodiment of the present invention to cancel the flow chart of short message interception service;

Fig. 4 is a schematic illustration according to a preferred embodiment of the present invention adds the flow chart of the source address that the user permits to receive the short message from it;

Fig. 5 is a schematic illustration according to a preferred embodiment of the present invention deletes the flow chart of the source address that the user permits to receive short messages from it;

Fig. 6 is a flow chart schematically illustrating adding a source address from which a user is permitted to receive short messages according to another preferred embodiment of the present invention; and

Fig. 7 is a flowchart schematically illustrating the deletion of source addresses from which a user is permitted to receive short messages according to another preferred embodiment of the present invention.

Detailed ways

In the following, the expression "illegal short message" will be used; in this manual, any short message sent to a user from a source address that is not permitted by the user to receive short messages is called an illegal short message.

1. Implementation plan

The home location register (HLR, Home Location Register) that the user belongs to can maintain a user and the corresponding table of the source address that the user is allowed to receive short messages from it. The source addresses from which a user is permitted to receive short messages are called members of the table. Like this, HLR and short message center (MC, Message Center) just can cooperate and realize the interception to short message, and concrete process is shown in Fig. 1. Figure 1 is described below:

Before a.MC sends short message, at first sends SMSREQ message to HLR to inquire about the route information that sends short message, and this SMSREQ message is except carrying purpose MSID or MDN, ESN and SMSNOTIND indication, also packs caller identification simultaneously (Fig. 1 source MDN/MSID) in the HLR. HLR at first according to the called party of short message inquires corresponding short message service permission comparison table, to judge whether this short message is an illegal short message (if the calling party of short message does not belong to this short message service permission comparison table, then this short message is illegal short message). Under the situation that judgment short message is illegal short message, HLR directly returns the smsreq message that carries SMSACCDEN (SMS_Access DeniedReason, the access denial reason of SMS), and the reason value of parameter SMSACCDEN is set as rejected (denied).

b. After the MC receives the above smsreq response message, it finds that it fails to get the routing information and the reason for the failure is short message origination rejection, then it does not set the short message unsent flag, and directly discards the short message.

2. Interface description

At present, the interface between MC and HLR in 41D/41E and IS-841 protocols does not require to carry the MDN/MSID of the calling party; and according to the technical solution of the present invention, the SMSREQ service request message sent by MC to HLR must carry Caller's MDN/MSID. Since the MC fully knows the source of the short message arriving at the MC at present, it is not difficult for the MC to bring the calling party's MDN/MSID to the HLR, which can be realized by defining an extended interface. The MDN/MSID of the calling party can be packaged in the form of MAPIE.

Table 1 shows the specific meanings and types of the parameters source MSN and source MSID in this specification. The meanings of the target MDN or MSID, ESN, and SMSNOTIND in this manual are consistent with their definitions in the 41D/41E, IS-841 agreements.

Table 1

parameters meaning type sourceMDN The calling MDN is required to be a standard international number. is a required parameter. Source MSID Identification parameters of the caller: if the caller is an ordinary user and the ID brought by the caller is MIN ^① , then the MSID is MIN, otherwise the MSID should be IMSI ^② ; if the caller is an ISP address, then the MSID is the ISP address. is the preferred parameter.

Note: ^① MIN: Mobile Identification Number, mobile identification number;

^② IMSI: International Mobile Subscriber Identity, International Mobile Subscriber Identity number.

3. Business operation

It is easy to understand that determining whether the user requires short message interception needs to be based on the information provided by the user; for the user who requires short message interception, determining the members of the short message service permission comparison table also needs to be based on the information provided by the user. Therefore, the short message interception service and the method for operating the service can be provided, so as to determine whether the user uses the short message interception service or update the short message service permission comparison table according to the information provided by the user.

As far as determining whether the user uses the short message interception service, it involves signing and revocation operations, which can be realized through the following two schemes:

Option 1: After the user applies and provides the corresponding information, the operator directly signs or cancels the contract on the HLR;

Solution 2: Realize through RFC (Remote Function Control, remote service control).

The second scheme is described in detail below.

1. Sign up for short message interception service

◆The operation code of the contracted short message interception service that can be configured on the HLR is: *FC string[you can refer to the operation code format of other supplementary services such as CW (call waiting), CT (call transfer), etc., where FC is defined uniformly by MSC and HLR A feature code (FeatureCode)], this opcode can be flexibly configured. The mobile switching center (MSC, MobileSwitching Center) receives the call from the user, and initiates a LOCREQ request to the HLR after receiving the call. When the HLR judges that the called party is an RFC access code, it requests the user to input a PIN. The PIN entered by the user is passed to the HLR via the MSC. After the HLR confirms that the user is a legitimate user according to the PIN, it sends the RUIDIR to the MSC that initiated the RFC service request to instruct the user to perform service operations. In the case that what the user dials is the operation code for signing up for the short message interception service, the MSC can trigger a Feature operation (feature operation) to the HLR to sign up for the short message interception service according to the feature code in the operation code. See Figure 2 for the specific process, which is described as follows:

a. After the HLR confirms that the information entered by the user is legal information, it sends RUIDIR to the MSC that initiated the RFC service request to instruct the user to perform service operations;

b. MSC initiates a request to the user, requesting the user to input the service operation code;

c. User input service operation code *FC string (contract short message interception service operation code);

d. MSC sends ruidir message to HLR, carrying the service operation code *FCstring dialed by the user at the same time;

e. HLR receives the ruidir message, judges that the operation code in the message is the operation code of the contracted short message interception service, activates the short message interception service of the user, and sends a RUIDIR request to the MSC to instruct the user to perform other RFC operations ;

f. MSC initiates a request to the user, and then repeats b-e.

2. Cancel the short message interception service

◆The operation code that can be configured on the HLR to cancel the short message interception service is: *FC string2 (you can refer to the operation code format of other supplementary services such as CW, CT, etc., where FC is a characteristic code uniformly defined by MSC and HLR), this operation The code can be flexibly configured. MSC receives the call from the user, and sends a LOCREQ request to the HLR after receiving the call. When the HLR judges that the called party is an RFC access code, it requests the user to input a PIN. The PIN entered by the user is passed to the HLR via the MSC. After the HLR confirms that the user is a legitimate user according to the PIN, it sends the RUIDIR to the MSC that initiated the RFC service request to instruct the user to perform service operations. When the user dials an operation code for canceling the short message interception service, the MSC can trigger a Feature operation to the HLR according to the feature code in the operation code to cancel the short message interception service. See Figure 3 for the specific process, which is described as follows:

a. After the HLR confirms that the information entered by the user is legal information, it sends RUIDIR to the MSC that initiated the RFC service request to instruct the user to perform service operations;

b. MSC initiates a request to the user, requesting the user to input the service operation code;

c. User input service operation code *FC string2 (cancel short message interception service operation code);

d. MSC sends ruidir message to HLR, carrying the service operation code *FCstring2 dialed by the user at the same time;

e. HLR receives the ruidir message, judges that the operation code in the message is to cancel the short message interception service operation code, then cancels the short message interception service of the user, and sends a RUIDIR request to the MSC after completion to instruct the user to perform other RFC operations ;

f. MSC initiates a request to the user, and then repeats b-e.

For the user who subscribed to the short message interception service through the above-mentioned relevant operations, the HLR will maintain a correspondence table between the user and the source address from which the user is allowed to receive short messages, that is, the short message service permission comparison table. It is easy to understand that the update of the short message service permission comparison table involves adding and deleting operations, which can be performed through the following two schemes. For convenience of description, hereinafter, the "source address from which short messages are permitted to be received" is referred to as "acceptable source address of short messages". That is to say, in this specification, the above two terms are equivalent.

Option One

1. Add an acceptable source address for short messages

◆It can be configured and added on the HLR to accept the operation code of the SMS source address service: *FC+SMS Sender address[you can refer to other supplementary services such as CF (Call Forwarding), CNIR (Calling Number Identification Restriction), etc. code format], where FC is a feature code uniformly defined by MSC and HLR, and SMS Sender address (SMS sender address) is the calling address to be added as an acceptable short message source address [for example: directory number (directory number) )], this opcode can be flexibly configured. The MSC receives calls from users. In the case that what the user dials is to add an acceptable short message source address service operation code, after the MSC receives the call, it can trigger the Feature operation to the HLR to operate the user's short message interception service according to the feature code in the operation code. The specific process can be seen in Figure 4, described as follows:

a. After the MSC receives the call from the MS user, through analysis, it is found that the user dialed a series of Feature service operation codes, and then it needs to trigger the supplementary service to the HLR;

b. MSC sends FEATREQ message to HLR, carrying FC and SMS Senderaddress information in the message;

c. After the HLR receives the FEATREQ message sent by the MSC, it judges that the operation code carried in the message is an operation code for adding an acceptable short message source address service. Sender address is stored in the user's short message service permission comparison table, and in the featreq response message returned to MSC, it indicates that the operation is successful; if the user has not subscribed to the short message interception service, then the HLR will not process the service, and The operation failure is indicated in the featreq response message;

d. After MSC receives the featreq message sent by HLR, according to the result of the response, it provides feature confirmation (feature service confirmation) processing to MS;

e. Finally, the MSC releases the call.

2. Delete the acceptable source address of short message

◆The acceptable short message source address service operation code that can be configured and deleted on the HLR is: *FC0+SMS Sender address (you can refer to the operation code format of other supplementary services such as CF, CNIR, etc.), where FC0 is defined uniformly by MSC and HLR A feature code of , SMS Sender address (SMS sender address) is the calling address to be deleted (for example: phone book number), this operation code can be flexibly configured. The MSC receives calls from users. In the case that what the user dials is to delete an acceptable short message source address service operation code, the MSC can trigger the Feature operation to the HLR to operate the user's short message interception service according to the feature code in the operation code after receiving the call. The specific process can be seen in Figure 5.

It can be noticed that the flow shown in FIG. 5 is similar to the service processing flow of adding a receivable short message source address shown in FIG. 4 , and will not be repeated here. The only difference is: after the HLR receives the FEATREQ message sent by the MSC, it judges that the operation code carried in the message is an acceptable short message source address service operation code for deletion. If it is added as an acceptable short message source address, the HLR will delete the SMSSender address from the user's short message service permission comparison table, and indicate that the operation is successful in the featreq response message sent back to the MSC; otherwise, the HLR will not The business will be processed, and the operation failure will be indicated in the featreq response message.

Option II

1. Add an acceptable source address for short messages

◆The specific address that can be configured on the MSC for short message interception business operations is, for example, 1862, which is usually defined by the operator; the format of the short message that is configured to add an acceptable short message source address is, for example: LEN+*FC +SMS sender address#, where LEN is the length of "*FC", that is, the length of FC plus 1, FC is a feature code uniformly defined by MSC and HLR, and SMS Sender address is the source address to be added as an acceptable short message The calling address (for example: phone book number), the text message can include multiple SMS sender addresses, each SMS sender address ends with #, and no spaces or special characters are required between the numbers. MSC receives short messages from users. After the MSC receives the short message, if it judges that the destination address of the short message is the specific address for carrying out the short message interception service operation, it extracts the feature code from the short message, and triggers the Feature operation to the HLR to operate the user's short message interception service. The specific process can be seen in Figure 6, described as follows:

a. After MSC receives the short message from the user through BBS (Base Station System), it judges that the called address is a specific address for short message interception business operation, then extracts FC from the short message according to LEN, constructs FEATREQ message and sends it to HLR to trigger Supplementary services, while unpacking the number (SMS Sender address) in the short message and repacking it into DGTSDIAL, instead of converting the short message into an SMSDPP message and sending it to the MC to which the originating mobile station belongs;

B. MSC sends FEATREQ message to HLR, carries FC and SMS Senderaddress list information in the message;

c. After HLR receives MSC's FEATREQ message, it judges to add an acceptable short message source address service according to FC. After confirming that the user has signed up for the short message interception service, HLR will save the SMS Sender address to the user's short message In the message service permission comparison table, and indicate that the operation is successful in the featreq response message returned to MSC; if the user has not subscribed to the short message interception service, then the HLR will not process the service, and indicate that the operation failed in the featreq response message;

d. MSC constructs smsdpp response message according to the operation result returned by HLR (if the HLR operation is successful, the construction message prompts success, otherwise the construction message prompts failure), and it is converted into a short message response message in the air interface format and sent to the originating MS.

2. Delete the acceptable source address of short message

◆The specific address that can be configured on the MSC for short message interception business operations is, for example, 1862, which is usually defined by the operator; the short message format for configuring the acceptable short message source address for deletion is, for example: LEN+*FC0 +SMS senderaddress#, where LEN is the length of "*FC0", that is, the length of FC0 plus 1, FC0 is a feature code uniformly defined by MSC and HLR, and SMS Sender address is the calling address to be deleted (for example: phone book number ), the text message can include multiple SMS sender addresses, each SMS sender address ends with a # sign, and no spaces or special characters are required between the numbers. MSC receives short messages from users. After the MSC receives the short message, if it judges that the destination address of the short message is the specific address for carrying out the short message interception service operation, it extracts the feature code from the short message, and triggers the Feature operation to the HLR to operate the user's short message interception service. The specific process can be seen in Figure 7, described as follows:

a. After the MSC receives the short message from the user through the BBS, it judges that the called address is a specific address for the short message interception service, then extracts FC0 from the short message according to the LEN, constructs a FEATREQ message to the HLR to trigger the supplementary service, and sends the short message to the HLR at the same time. The number (SMS Sender address) in the message is unpacked and repacked into DGTSDIAL, instead of converting the short message into an SMSDPP message and sending it to the MC to which the originating mobile station belongs;

b. MSC sends FEATREQ message to HLR, carrying FC and SMS Senderaddress list information in the message;

c. After HLR receives the FEATREQ message sent by MSC, it judges to delete the acceptable short message source address service according to FC0. When it is determined that the user has signed up for the short message interception service, HLR will include in the message. The SMSSender address added as an acceptable short message source address is deleted from the user's short message service permission comparison table, and the operation is indicated in the featreq response message returned to the MSC; otherwise, the HLR will not process the service, And indicate that the operation failed in the featreq response message;

d. MSC constructs smsdpp response message according to the operation result returned by HLR (if the HLR operation is successful, the construction message prompts success, otherwise the construction message prompts failure), and it is converted into a short message response message in the air interface format and sent to the originating MS.

While a preferred embodiment of this invention has been described, those skilled in the art will be able to make various modifications to the embodiment disclosed herein upon reading and grasping the principles and teachings of this invention. Accordingly, the scope of the invention is defined by the claims appended hereto.

Claims (13)

1. implement the method that short message is tackled for one kind, comprising:

It is certain user's short message that short message service center receives destination address;

Short message service center sends to attaching position register under this user with the source address of short message;

Attaching position register judges whether the source address of short message is identical from the source address that it receives short message with certain this user's allowance, is judging that this user of itself and all permits indicating short message service center to abandon short message under the different situation of the source address of its reception short message.

2. the method for claim 1 is characterized in that, this user permits receiving the table that source address is included in this user is associated of short message from it.

3. the method for claim 2, it is characterized in that, the command code that is associated with specific operation that described table sends based on the user is set up or is cancelled, wherein the mobile switching centre at user place sends the message of carrying described command code to attaching position register after receiving described command code, and described table is set up or cancelled to attaching position register according to described command code.

4. the method for claim 3 is characterized in that, the transmission of described command code realizes by the mode of dialing the RFC access code.

5. the method for claim 2, it is characterized in that, the command code that is associated with interpolation telogenesis person that the member of described table sends based on the user is added, described command code comprises that the user permits receiving from it source address of short message, wherein the mobile switching centre at user place sends the message of carrying described command code to attaching position register after receiving described command code, and attaching position register adds the source address in the command code in the described table to according to command code.

6. the method for claim 2, it is characterized in that, the command code that is associated with the delete list member deletion that the member of described table sends based on the user, described command code comprises telogenesis person, wherein the mobile switching centre at user place sends the message of carrying described command code to attaching position register after receiving described command code, and attaching position register is deleted corresponding member according to command code from described table.

7. the method for claim 2, it is characterized in that, the member of described table sends to the specific format of particular address based on the user short message adds, described short message comprises that the condition code and the user that are associated with interpolation telogenesis person permit from the source address of its reception short message, after wherein the mobile switching centre at user place receives this short message, based on called address is particular address, from short message, extract the source address that condition code and user permit receiving from it short message, and send to attaching position register and to carry described condition code and user and permit the message that receives the source address of short message from it, attaching position register adds corresponding source address in the described table to according to described condition code.

8. the method for claim 2, it is characterized in that, the member of described table sends to the short message deletion of the specific format of particular address based on the user, described short message comprises condition code and the telogenesis person who is associated with the delete list member, after wherein the mobile switching centre at user place receives this short message, based on called address is particular address, from short message, extract condition code and telogenesis person, and sending the message carry described condition code and telogenesis person to attaching position register, attaching position register is deleted corresponding member according to described condition code from described table.

9. the method for claim 1 is characterized in that, the source address of short message is by the source MDN sign of short message.

10. the method for claim 9 is characterized in that, the source address of short message is also identified by the source MSID of short message.

11. a short message service center comprises receiving the device of destination address for certain user's short message; The source address of short message is sent to the device of the attaching position register under this user; With, the device of operating according to the response of attaching position register,

Wherein attaching position register judges whether the source address of short message is identical from the source address that it receives short message with certain this user's allowance, is judging that this user of itself and all permits returning the response of indicating short message service center to abandon short message under the different situation of the source address of its reception short message.

12. an attaching position register comprises the device that receives the source address of short message from short message service center, wherein the destination address of short message is certain user of this attaching position register of ownership; With, judge whether the source address of short message is identical from the source address that it receives short message with certain this user's allowance, judging that itself and all these users permit indicating short message service center to abandon the device of short message under the different situation of the source address of its reception short message.

13. a system comprises described short message service center of claim 11 and the described attaching position register of claim 12.

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