CN100433737C - Method, equipment and system for filtering SIP message in communication network - Google Patents

Abstract

The invention discloses a method for filtering SIP messages in a communication network. A message sending device sends a SIP message to a message receiving device through the communication network, and a message filtering server is configured in the communication network; the message filtering server receives the SIP message, and The SIP message is processed according to the message filtering rules configured on the message filtering server for the message receiving device. At the same time, the invention also discloses the message filter and system in the method.

Description

Method, device and system for filtering SIP messages in communication network

technical field

The present invention relates to mobile communication network technology, in particular to a method, device and system for filtering SIP messages in a communication network

Background technique

In mobile communication network technology, since SIP (Session Initiation Protocol) provides a message mechanism, a message sending device can send a SIP message to a message receiving device through a mobile communication network.

Taking an IMS (IP Multimedia Subsystem) network as an example, under the IMS framework, there are generally two ways to send a SIP message to a message receiving device: one is sent by an MS (mobile device). Assume that MS1 is a message sending device, and MS2 is a message receiving device. The SIP message sent by MS1 is forwarded by the network element equipment (such as CSCF (Call Session Control Function)) in the IMS network to MS2. After receiving the message, MS2 sends a confirmation message (such as 200 OK) to MS1 to notify MS1 The message has been received. The second is sent by AS (Application Server), such as HRS (Active List Redirection Server), PPS (Packet Prepaid Server) and so on. The messages sent by these servers to the message receiving device are forwarded by NS (Notification Server) located in the message receiving device's home network. The NS sends the message from the HRS or PPS or other AS to the message receiving device through the network element device (such as CSCF) in the IMS network, and the message receiving device sends a confirmation message (such as 200 OK) to the message receiving device after receiving the message. The NS is used to notify the NS that the message has been received.

With this message mechanism in the prior art, regardless of whether the message sending device is an MS or an AS, each network element device only forwards the SIP message when the SIP message is transmitted in the communication network. Information is not concerned. Therefore, messages that the subscriber of the message receiving device does not want originally (for example, fraudulent information such as "Congratulations on winning the prize") will also be sent to the message receiving device. That is to say, the network element device responsible for forwarding SIP messages in the communication network does not have the SIP message filtering function, and sends the SIP messages to the message receiving device without judgment, resulting in poor service experience for subscribers using the message receiving device. Moreover, it is not conducive to the health of SIP message content in the communication network.

Contents of the invention

The object of the present invention is to provide a method, device and system for filtering SIP messages in a communication network, so as to ensure the health of the content of SIP messages in the communication network and improve user service experience quality.

The present invention provides a method for filtering SIP messages in a communication network. A message sending device sends the SIP message to a message receiving device through the communication network. The method includes:

A message filtering server is configured in the communication network, and a message filtering rule about the message receiving device is configured on the message filtering server, and the message filtering rule is:

(a) If the SIP message does not contain any keyword in the keyword list in the message filtering rule, then allow it; otherwise it is not allowed; or

(b) If the SIP message does not contain any blocking address in the blocking address list in the message filtering rule, it is allowed; otherwise it is not allowed; or

(c) If the SIP message contains any passing address in the passing address list in the message filtering rule, then allow it; otherwise it is not allowed; or

Any combination of the above message filtering rules (a), (b), (c).

The message filtering server receives the SIP message, and judges whether the SIP message is allowed by the message filtering rule, and if it is judged yes, then sends the SIP message to the message receiving device; otherwise, sends the SIP message to the message receiving device; Message discarded.

Preferably, the communication network is an IMS network.

The present invention also provides another method for filtering SIP messages in the communication network. The message sending device sends the SIP message to the message receiving device through the communication network. The method includes:

A message filtering server is configured in the communication network, and a message filtering rule about the message receiving device is configured on the message filtering server;

The message filtering server receives the SIP message, and judges whether the SIP message is allowed by the message filtering rule, and if it is judged yes, then sends the SIP message to the message receiving device; otherwise, sends the SIP message to the message receiving device; The message is saved, and the SIP message is sent to the message receiving device after the message filtering rule permits.

The present invention also provides a message filtering server for filtering SIP messages in a communication network, a message sending device sends the SIP message to a message receiving device through the communication network, and the message filtering server is configured on the communication network In, the message filtering server includes:

a receiving unit, configured to receive the SIP message;

A storage unit, configured to store message filtering rules about the message receiving device, where the message filtering rules are:

(a) If the SIP message does not contain any keyword in the keyword list in the message filtering rule, then allow it; otherwise it is not allowed; or

(b) If the SIP message does not contain any blocking address in the blocking address list in the message filtering rule, it is allowed; otherwise it is not allowed; or

(c) If the SIP message contains any passing address in the passing address list in the message filtering rule, then allow it; otherwise it is not allowed; or

Any combination of the above message filtering rules (a), (b), (c);

a judging unit, configured to judge whether the SIP message is allowed by the message filtering rule;

a sending unit coupled to one end of the judging unit, configured to send the SIP message to the message receiving device when the judging unit judges yes; and

A discarding unit coupled to the other end of the judging unit is configured to discard the SIP message when the judging unit judges no.

The present invention also provides another message filtering server for filtering SIP messages in a communication network. A message sending device sends the SIP message to a message receiving device through the communication network, and the message filtering server is configured in the communication network. In the network, the message filtering server includes:

a receiving unit, configured to receive the SIP message;

a storage unit, configured to store message filtering rules related to the message receiving device;

a judging unit, configured to judge whether the SIP message is allowed by the message filtering rule;

a sending unit coupled to the first end of the determining unit, configured to send the SIP message to the message receiving device;

A storage unit coupled to the second terminal of the determination unit, configured to store the message;

A waiting unit coupled to the third terminal of the judging unit is configured to wait for the message filtering rule to allow.

Preferably, the message filtering rules are:

If the time is not within the do-not-disturb time period in the message filtering rule, it is allowed; otherwise, it is not allowed.

The present invention further provides a system for filtering SIP messages in a communication network, comprising:

at least one message sending device, configured to send said SIP message over said communication network;

at least one message receiving device, configured to receive the SIP message;

At least one message filtering server coupled to the communication network, the message filtering server includes:

a receiving unit, configured to receive the SIP message;

A storage unit, configured to store message filtering rules about the message receiving device, where the message filtering rules are:

(a) If the SIP message does not contain any keyword in the keyword list in the message filtering rule, then allow it; otherwise it is not allowed; or

(b) If the SIP message does not contain any blocking address in the blocking address list in the message filtering rule, it is allowed; otherwise it is not allowed; or

(c) If the SIP message contains any passing address in the passing address list in the message filtering rule, then allow it; otherwise it is not allowed; or

Any combination of the above message filtering rules (a), (b), (c);

a judging unit, configured to judge whether the SIP message is allowed by the message filtering rule;

a sending unit coupled to one end of the judging unit, configured to send the SIP message to the message receiving device when the judging unit judges yes; and

A discarding unit coupled to the other end of the judging unit is configured to discard the SIP message when the judging unit judges no.

The present invention further provides another system for filtering SIP messages in a communication network, including:

at least one message sending device, configured to send said SIP message over said communication network;

at least one message receiving device, configured to receive the SIP message;

At least one message filtering server coupled to the communication network, the message filtering server includes:

a receiving unit, configured to receive the SIP message;

a storage unit, configured to store message filtering rules related to the message receiving device;

a judging unit, configured to judge whether the SIP message is allowed by the message filtering rule;

a sending unit coupled to the first end of the determining unit, configured to send the SIP message to the message receiving device;

A storage unit coupled to the second terminal of the determination unit, configured to store the message;

A waiting unit coupled to the third terminal of the judging unit is configured to wait for the message filtering rule to allow.

Preferably, the message filtering rules are:

If the time is not within the do-not-disturb time period in the message filtering rule, it is allowed; otherwise, it is not allowed.

Preferably, the communication network is an IMS network.

In the present invention, by adding a functional unit (i.e. message filtering server (MFS)) performing SIP message filtering in the communication network, the SIP message to be sent to the message receiving device is combined with the message filtering stored on the functional unit through the functional unit. rules for filtering. In this way, the subscribers using the message receiving device can filter spam by setting the message filtering rules by themselves, avoiding the subscribers in the communication network from being disturbed by spam, improving the quality of service experience of the subscribers, and at the same time improving The healthy content of the SIP message prevents the dissemination of unhealthy SIP message content in the communication network.

Other aspects and advantages of the present invention will be described in detail with reference to the accompanying drawings.

Description of drawings

Fig. 1 is a structural block diagram of a system for filtering SIP messages in a communication network provided by the present invention;

Fig. 2 a is a structural block diagram of a preferred embodiment of the system provided in Fig. 1;

Fig. 2 b is a structural block diagram of another preferred embodiment of the system provided in Fig. 1;

Fig. 3 is the structural diagram of MFS (message filtering server) 200 in Fig. 1;

FIG. 4 is a structural diagram of a preferred embodiment of the processing unit 230 in FIG. 3;

FIG. 5 is a structural diagram of another preferred embodiment of the processing unit 230 in FIG. 3;

Fig. 6 is a SIP message transmission information flow diagram based on the system provided in Fig. 1;

Fig. 7 is a flow chart of one operation of MFS200 in Fig. 1;

Fig. 8 is a flowchart of a preferred embodiment of step S2 in Fig. 7;

Fig. 9 is a flowchart of another preferred embodiment of step S2 in Fig. 7;

Fig. 10 is an information flow diagram when the method for filtering SIP messages in a communication network provided by the present invention is applied in the network structure shown in Fig. 2b;

Fig. 11 is an information flow diagram when the method for filtering SIP messages in the communication network provided by the present invention is applied in the network structure shown in Fig. 2a;

Detailed ways

Referring to FIG. 1 , it illustrates a system structure for filtering SIP messages in a communication network provided by the present invention. As shown in the figure, in the communication network 100, an MFS (Message Filtering Server) 200 is included. The MFS 200 is coupled to the communication network 100 . The communication network 100 also includes a message sending device 101 and a message receiving device 102 . Both the message sending device 101 and the message receiving device 102 are coupled to the MFS200. The message sent by the message sending device 101 must be filtered by the MFS200 before it can decide whether to send it to the message receiving device 102 .

Referring to Fig. 2a and Fig. 1, Fig. 2a illustrates a preferred embodiment of the system presented in Fig. 1 . As shown, an IMS (IP Multimedia Subsystem) network 100a is a communication network. A CSCF (Call Session Control Function) 106 is included in this IMS network 100a. The CSCF 106 can be further divided into P-CSCF (Proxy Call Session Control Function), I-CSCF (Inquiry Call Session Function) and S-CSCF (Serving Call Session Function) (not shown). Since the purpose, function and structure of the CSCF are obvious to those skilled in the art, details will not be repeated here.

Referring to FIG. 2 a and FIG. 1 , the network element devices coupled with the CSCF 106 include HSS (Home Subscription Server) 104 , HLR (Home Location Register) 105 and NS (Notification Server) 103 . MS102a and MS101d are also coupled with CSCF106. The MS102a and MS101d are mobile devices used by subscribers, and can send/receive SIP messages from the IMS network 100a. The MS102a and MS101d may be mobile phones, PDAs (Personal Digital Assistants) and portable computers with wireless network cards, etc. that can communicate with the IMS network 100a.

With reference to Fig. 2 a and Fig. 1, the device coupled with described NS103 comprises HRS (active list redirection server) 101c, PPS (packet prepayment server) 101b and Other AS (other server) 101a. The Other AS101a is a class concept, including any application server except PPS101b and HRS101c. The HRS101c, PPS101b and Other AS101a are all message sending devices that can send SIP messages to MS102a.

Referring to Fig. 2a and Fig. 1, in this embodiment, if MS102a is used as the message receiving device, the device corresponding to the message sending device 101 in Fig. 1 is any one of Other AS101a, PPS101b, HRS101c and MS101d.

Referring to Fig. 2a and Fig. 1, MFS200a is also coupled to CSCF106. Specifically, the MFS200a can be coupled to the S-CSCF in the home network of the MS102a in the CSCF106.

It is worth noting that the devices listed in the preferred embodiment in Fig. 2a do not exhaust all possible devices in the IMS network, and there is no limit on the number of each device. Moreover, the message receiving device is not limited to a mobile device (MS). In other embodiments of the present invention, the message receiving device may also be other types of terminal devices located in the IMS network.

Referring to Fig. 2a, the SIP message sent by the Other AS101a, PPS101b and HRS101c to MS102a is forwarded to CSCF106 via NS103, and then forwarded to MFS200a by CSCF106, and MFS200a processes the SIP message according to the message filtering rules configured on it for MS102a Processing, during which MFS200a decides whether to send the SIP message to MS102a. The process for MS 101d to send a SIP message to MS 102a is similar to the above process, and will not be repeated here.

Referring to Fig. 2a, Fig. 2b and Fig. 1, Fig. 2b illustrates another preferred embodiment of the system given in Fig. 1 . As shown in the figure, compared with FIG. 2a, in FIG. 2b, MFS200a is configured between MS101d, Other AS101a, PPS101b, HRS101c and CSCF106 as message sending devices. That is to say, the SIP messages sent by these message sending devices need to be processed by MFS200a before entering CSCF106.

It should be noted that the NS103 in Fig. 2a and Fig. 2b is not a necessary functional entity of the present invention, and in another specific embodiment of the present invention, the application server (AS) as the message sending device can be directly coupled with the CSCF , it is not necessary to communicate with the CSCF through the NS first. Therefore, the specific implementation structure in Fig. 2a and Fig. 2b should not be regarded as a limitation of the present invention.

Referring to FIG. 3 , the structure of the MFS 200 in FIG. 1 is illustrated. The MFS200 includes a receiving unit 210 for receiving SIP messages. The SIP message enters the receiving unit 210 along the direction indicated by the arrow 201 . The MFS 200 also includes a storage unit 220 for storing message filtering rules. The MFS 200 further includes a processing unit 230 configured to process the SIP message received by the receiving unit according to the message filtering rule stored in the storage unit 220 . The processing unit 230 , the receiving unit 210 and the storage unit 220 are coupled together through the bus 202 so as to communicate with each other. It is worth noting that this structure of MFS200 can be implemented in a general computer in the form of hardware, software or firmware.

Refer to Figures 1, 3, 6 and 7. Figure 6 illustrates a SIP message transmission information flow based on the system shown in Figure 1. As shown in the figure, the information flow transmission process includes: information flow 1: the message sending device 101 sends a SIP message to the MFS200, and the SIP message may be a SIP MESSAGE message. MFS200 processes after receiving the SIP message. During the processing, firstly, MFS200 sends confirmation information (namely information flow 2) to message sending device 101 to prevent message sending device 101 from sending the SIP message again. During the processing, if MFS200 does not filter out the SIP message according to the message filtering rules about MS102, there will be information flow 3: MFS200 sends the SIP message to MS102. Information flow 4: MS102 sends confirmation information to MFS200 after receiving the SIP message, preventing MFS200 from sending the message again.

Fig. 7 is a flow chart on MFS200, corresponding to the structure of MFS200 in Fig. 3, the flow includes: after the program goes through the start step, enter step S1: receive SIP message; then enter step S2: process the SIP message.

Refer to Figure 4 and Figure 8. FIG. 4 is a structural diagram of a preferred embodiment of the processing unit 230 in FIG. 3 . As shown in the figure, the processing unit 230 includes a decision unit 231a, and the decision unit 231a has two branches, one branch is connected to the discarding unit 232, and the other branch is connected to the sending unit 233a. The sending unit 233a sends the SIP message in the direction shown by the arrow 239a. Corresponding to the structure in FIG. 4 , FIG. 8 is a preferred embodiment of step S2 in FIG. 7 . Step S2 comprises: the program enters step S21a after the start step: determine whether the SIP message is allowed by the message filtering rule, if allowed, then enter step S22a: send the SIP message to the message receiving device (such as the message in Fig. 1 The receiving device 102) enters the end step; if not allowed, enters step S23a: discards the SIP message and enters the end step.

Referring to Fig. 8, a preferred embodiment of the message filtering rule is: the message filtering rule includes a keyword table, which contains several keywords, such as "winning", "used car", etc., the key The keywords in the word table can be set by the subscriber who uses the message receiving device that receives the SIP message, and the keywords can also include wildcards, such as "congratulations *". If the SIP message does not contain any keyword in the keyword table, it is allowed, otherwise it is not allowed.

Referring to Fig. 8, another preferred embodiment of the message filtering rule is as follows: the message filtering rule includes a blocking address list, the blocking address list includes several blocking addresses, and the format of the blocking addresses can be in accordance with The SIP URI (Uniform Resource Identifier) of the IMS network specification, such as "example@example.com". Likewise, the subscriber who uses the message receiving device that receives the SIP message can set the blocking address by himself, and the blocking address can also include wildcards. If the sender address in the SIP message does not contain any blocked address in the blocked address list, it is allowed, otherwise it is not allowed.

Referring to Fig. 8, another preferred embodiment of the message filtering rule is as follows: the message filtering rule includes a list of passing addresses, the list of passing addresses includes several passing addresses, and the format of the passing addresses may conform to the IMS network specification SIP URI (Uniform Resource Identifier), such as "example@example.com". Likewise, the subscriber who uses the message receiving device that receives the SIP message can set the pass address by himself, and the pass address can also include wildcards. If the sender address in the SIP message includes any one of the passing addresses in the passing address list, it is allowed; otherwise, it is not allowed.

It should be noted that the message filtering rules may also include any combination of the message filtering rules listed in the above preferred embodiments, and may also include other message filtering rules and combinations thereof.

With reference to Fig. 8, in this preferred embodiment, the subscriber who uses the message receiving device that receives the SIP message can filter out the SIP messages that are unwilling to receive by setting the message filtering rules by oneself, thereby avoiding spam or unwilling Interruption of received information.

Refer to Figure 5 and Figure 9. FIG. 5 is a structural diagram of another preferred embodiment of the processing unit 230 in FIG. 3 . As shown in the figure, the processing unit 230 includes a judging unit 231b, and the judging unit 231b has two branches, one branch is connected to the saving unit 234, and the other branch is connected to the sending unit 233b. The sending unit 233b sends the SIP message in the direction indicated by the arrow 239b. In addition, the judging unit 231b is also coupled to the waiting unit 235 . Corresponding to the structure in FIG. 5 , FIG. 9 is another preferred embodiment of step S2 in FIG. 7 . Step S2 comprises: the program enters step S21b after the start step: determine whether the SIP message is allowed by the message filtering rule, if allowed, then enter step S22b: send the SIP message to the message receiving device (such as the message in Fig. 1 After receiving the device 102), enter the end step; if not allowed, then enter step S24: save the SIP message. Then enter step S25: wait. In this step S25, a method of setting a timer may be adopted, and the process returns to step S21b at intervals.

Referring to FIG. 9 , a preferred embodiment of the message filtering rule is: the message filtering rule includes a do-not-disturb time period, such as "00:00-7:00". The do-not-disturb time period can be set by the subscriber using the mobile device receiving the SIP message. If the time (referring to the system time) is not within the do-not-disturb time period, it is allowed, otherwise it is not allowed.

Referring to FIG. 9, in this preferred embodiment, if MFS200 receives a SIP message during the do-not-disturb time period, it will save the SIP message, and wait until the time is not within the do-not-disturb time period before sending the SIP message. message sent. Therefore, the subscriber who uses the message receiving device that receives the SIP message can freely set the do-not-disturb time period, thereby avoiding receiving the SIP message in the time period when he does not want to be disturbed, and the SIP message will not be discarded , when the time is not in the do-not-disturb period, the subscriber will receive the SIP message.

If the method for filtering SIP messages in the communication network is applied in the network structure shown in FIG. CSCF (the above three are not shown in Fig. 2b), then the information flow of this method is shown in Fig. 10 . Referring to Fig. 10, the information flow includes: 1: MS101d sends a SIPMESSAGE message to MS102a, and according to the address information of MS102a, the network to which the user of MS102a belongs can be known, so according to the routing rules configured in the network, the SIP MESSAGE is sent to MFS200a for filtering processing . 2: MFS200a returns a 200OK message to MS101d after receiving the SIP MESSAGE message. 3: The MFS200a searches for the filtering rules of the MS102a on the MFS200a according to the receiver address of the SIP MESSAGE message. If MS102a has filtering rule in MFS200a, then filter SIP MESSAGE message according to the content of this filtering rule. After filtering, the SIP MESSAGE message that is allowed to be sent to MS 102a by the filtering rule will be forwarded to MS 102a by MFS200a, and the SIP MESSAGE message that does not pass the filtering rule will be filtered by MFS200a. 4-6: According to the forwarding and routing mechanism of the SIP MESSAGE message under the existing IMS architecture, the SIP MESSAGE message is forwarded to MS102a via I-CSCF, S-CSCF, and P-CSCF. 7-9: After receiving the SIP MESSAGE message, MS102a replies with a 200 OK message. The 200OK message is forwarded to MFS200a via P-CSCF and S-CSCF according to the forwarding routing mechanism under the existing IMS architecture.

If the method for filtering SIP messages in the communication network is applied in the network structure shown in FIG. CSCF (the above three are not shown in Fig. 2b), then the information flow of this method is shown in Fig. 11 . Referring to Figure 11, the information flow includes: 1: MS 101d sends a SIP MESSAGE message to MS 102a. According to the address of MS102a, the network address to which the MS102a user belongs can be known, and according to the IMS network routing rules, the SIP MESSAGE message is sent to the I-CSCF of the home network where the MS102a user is located. 2: After the I-CSCF receives the SIP MESSAGE message, according to the user identification of the destination party (i.e. MS 102a) carried in the SIP MESSAGE message, it goes to the HSS 104 of the home network where the MS 102a user is located to query the current registered S-CSCF location of the MS 102a user information. 3: The HSS 104 finds the address information of the S-CSCF currently registered by the user of the MS 102a according to the user ID of the MS 102a, and returns it to the I-CSCF. 4: After receiving the S-CSCF address information currently registered by MS102a, the I-CSCF forwards the SIP MESSAGE message to the S-CSCF for subsequent processing. 5: After receiving the SIPMESSAGE message, the S-CSCF goes to the above-mentioned HSS 104 to search for the subscription information of the MS 102a user. 6: The HSS 104 finds out the subscription information of the user of the MS 102a according to the user ID of the user, and finds that the user has signed up for the message filtering service. The HSS104 sends the user subscription information to the S-CSCF, including the subscription information of the message filtering service, which may contain the address information of the MFS200a. 7: After receiving the user subscription information from HSS104, the S-CSCF finds that the user has subscribed to the message filtering service, and forwards the SIPMESSAGE message received in step 5 to MFS200a. The manner in which the S-CSCF obtains the address information of the MFS200a may be obtained from the subscription information returned by the HSS104, or the address information of the MFS200a may be pre-configured in the S-CSCF through network configuration. 8: The MFS200a filters the SIP MESSAGE message received from the S-CSCF according to the filtering rules of the MS102a user stored on it. Only the SIP MESSAGEs allowed by the filtering rules will be replied to the S-CSCF. 9: MFS200a replaces MS 102a to reply a 200OK message to MS101d, so that MS101d will not know whether the message it sends has been filtered by MFS200a, thereby avoiding malicious repeated sending. 10: S-CSCF receives the filtered SIP MESSAGE message from MFS200a, and sends it to the P-CSCF registered in MS102a after performing other service trigger processing. 11: The P-CSCF forwards the SIP MESSAGE message to MS102a. 12: After receiving the SIP MESSAGE message, MS 102a replies a 200 OK message to the P-CSCF. 13: The P-CSCF forwards the 200 OK message to the S-CSCF. 14: The S-CSCF forwards the 200OK message to MFS200a to notify its MS102a that it has received the SIP MESSAGE message. If the MFS200a finds that the 200OK message has not been received for a long time, it can perform retransmission processing to ensure that the filtered SIPMESSAGE message can be sent to the MS102a.

The ways of configuring message filtering rules on the message filtering server mainly include but are not limited to the following three. Taking FIG. 2a as an example, configuring the message filtering rules about MS102a on MFS200a can be done through:

1. MS102a sends the message filtering rule to MFS200a. For example, using the existing SIP message mechanism, the message filtering rules are sent to MFS200a with the body field of the existing SIP MASSAGE as a carrier; it can also be realized by defining a new SIP message.

2. Subscribers using MS102a can log in to MFS200a through HTTP, and configure message filtering rules on the HTTP service page of MFS200a.

3. In the IMS network 100a, the network node (such as HSS104 or HLR105 in FIG. 2 ) that records the subscription information of MS102a saves the message filtering rules in the form of subscription, and MFS200a obtains the information from HSS104 or HLR105 through communication between network entities. Obtain the message filtering rules. MFS200a can acquire the message filtering rules in the following ways:

1) Regularly update and download. MFS200a sets an update timer, and when the update timer is triggered, MFS200a downloads the message filtering rules from HSS104 or HLR105.

2) When the HSS 104 or HLR 105 detects a change in the message filtering rule, it actively sends the changed message filtering rule to the MFS 200a to update the message filtering rule on the MFS 200a.

3) When MFS200a learns that MS102a is registered in IMS network 100a, it requests message filtering rules to HSS 104 or HLR105, and HSS104 or HLR105 sends described message filtering rules to MFS200a after receiving the request.

4) When MFS200a needs to send a message to MS102a, it first detects whether the message filtering rule stored by itself is the same as the message filtering rule stored on HSS 104 or HLR105, if not, it downloads the message filtering rule from HSS104 or HLR105 to update on MFS200a message filtering rules.

In a specific embodiment of the present invention, the SIP message specifically adopts a SIP MESSAGE message. Of course, other types of SIP messages can also be applied to the present invention.

Through the above description, by setting the network entity (that is, a physical entity or a logical entity) of the message filter in the communication network, the SIP message sent to the message receiving device is combined with the message filtering rules about the SIP message receiving device Filtering, only the SIP messages allowed by the message filtering rules are sent to the message receiving device, thereby preventing the subscribers who hold the message receiving device in the communication network from being disturbed by the spam messages defined by themselves, and providing SIP messages in the communication network. The healthiness of message content prevents the dissemination of unhealthy information content in the communication network.

What is disclosed above is only a preferred embodiment of the present invention, and of course it cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the patent scope of the present invention still fall within the scope of the present invention.

Claims (14)

1. method that the sip message in the communication network is filtered, the message transmitting apparatus sends described sip message by described communication network to message sink equipment, it is characterized in that, and this method comprises:

Configuration messages filtering server in described communication network disposes the message screening rule about described message sink equipment on the described message screening server, described message screening rule is:

(a) if do not comprise any keyword in the Keyword List in the described message screening rule in the described sip message, then allow; Otherwise do not allow; Or

(b) if do not comprise any blocking-up address in the blocking-up address list in the described message screening rule in the described sip message, then allow; Otherwise do not allow; Or

(c) if comprise in the described sip message in the described message screening rule pass through in the address list any one by the address, then allow; Otherwise do not allow; Or

The combination in any of above-mentioned message screening rule (a) and (b), (c);

Described message screening server receives described sip message, and judges whether described sip message is allowed by described message screening rule, and being judged as is then described sip message to be sent to described message sink equipment; Otherwise, described sip message is abandoned.

2. method according to claim 1 is characterized in that: described communication network is the IP Multimedia System network.

3. method according to claim 1 and 2 is characterized in that: described sip message is a SIPMESSAGE message.

4. method according to claim 1 is characterized in that: the collocation method of described message screening rule is:

Described message sink equipment sends to described message screening rule in the described message screening server; Or

Login described message screening server by the HTTP mode and dispose described message screening rule; Or

Preserve described message screening rule with signatory form in the network node that records described message sink equipment CAMEL-Subscription-Information in described communication network, described message screening server obtains described message screening rule from described network node.

5, a kind of method that sip message in the communication network is filtered, the message transmitting apparatus sends described sip message by described communication network to message sink equipment, it is characterized in that, and this method comprises:

Configuration messages filtering server in described communication network disposes the message screening rule about described message sink equipment on the described message screening server;

Described message screening server receives described sip message, and judges whether described sip message is allowed by described message screening rule, and being judged as is then described sip message to be sent to described message sink equipment; Otherwise, described sip message is preserved, wait for after described message screening rule allows described sip message is sent to described message sink equipment.

6. method according to claim 5 is characterized in that: described message screening rule is:

If the time is the interruption-free in described message screening rule in the time period not, then allow; Otherwise do not allow.

7. according to claim 5 or 6 described methods, it is characterized in that: described sip message is a SIPMESSAGE message.

8. method according to claim 5 is characterized in that: the collocation method of described message screening rule is:

Described message sink equipment sends to described message screening rule in the described message screening server; Or

Login described message screening server by the HTTP mode and dispose described message screening rule; Or

Preserve described message screening rule with signatory form in the network node that records described message sink equipment CAMEL-Subscription-Information in described communication network, described message screening server obtains described message screening rule from described network node.

9. message screening server that the S IP message in the communication network is filtered, the message transmitting apparatus sends described sip message by described communication network to message sink equipment, described message screening server is configured in the described communication network, it is characterized in that described message screening server comprises:

Receiving element is used to receive described sip message;

Memory cell is used to store the message screening rule about described message sink equipment, and described message screening rule is:

(a) if do not comprise any keyword in the Keyword List in the described message screening rule in the described sip message, then allow; Otherwise do not allow; Or

(b) if do not comprise any blocking-up address in the blocking-up address list in the described message screening rule in the described sip message, then allow; Otherwise do not allow; Or

(c) if comprise in the described sip message in the described message screening rule pass through in the address list any one by the address, then allow; Otherwise do not allow; Or

The combination in any of above-mentioned message screening rule (a) and (b), (c);

Identifying unit is used to judge whether described sip message is allowed by described message screening rule;

With the transmitting element that described identifying unit one end lotus root connects, be used for being judged as when being when described identifying unit, send described sip message to described message sink equipment; With

With the discarding unit that the other end lotus root of described identifying unit connects, be used for when described identifying unit is judged as not, abandoning described sip message.

10, a kind of message screening server that sip message in the communication network is filtered, the message transmitting apparatus sends described sip message by described communication network to message sink equipment, described message screening server is configured in the described communication network, it is characterized in that described message screening server comprises:

Receiving element is used to receive described sip message;

Memory cell is used to store the message screening rule about described message sink equipment;

Identifying unit is used to judge whether described sip message is allowed by described message screening rule;

Transmitting element with the described identifying unit first end lotus root connects is used for sending described sip message to described message sink equipment;

With the preservation unit that the described identifying unit second end lotus root connects, be used for described message is preserved;

With the wait unit that described identifying unit the 3rd end lotus root connects, be used to wait for that described message screening rule allows.

11, server as claimed in claim 10 is characterized in that, described message screening rule is:

If the time is the interruption-free in described message screening rule in the time period not, then allow; Otherwise do not allow.

12. the system that the sip message in the communication network is filtered is characterized in that, comprising:

At least one message transmitting apparatus is used for sending described sip message by described communication network;

At least one message sink equipment is used to receive described sip message;

At least one message screening server, this message screening server lotus root is connected in the described communication network, and this message screening server comprises:

Receiving element is used to receive described sip message;

Memory cell is used to store the message screening rule about described message sink equipment, and described message screening rule is:

(a) if do not comprise any keyword in the Keyword List in the described message screening rule in the described sip message, then allow; Otherwise do not allow; Or

(b) if do not comprise any blocking-up address in the blocking-up address list in the described message screening rule in the described sip message, then allow; Otherwise do not allow; Or

(c) if comprise in the described sip message in the described message screening rule pass through in the address list any one by the address, then allow; Otherwise do not allow; Or

The combination in any of above-mentioned message screening rule (a) and (b), (c);

Identifying unit is used to judge whether described sip message is allowed by described message screening rule;

With the transmitting element that described identifying unit one end lotus root connects, be used for being judged as when being when described identifying unit, send described sip message to described message sink equipment; With

With the discarding unit that the other end lotus root of described identifying unit connects, be used for when described identifying unit is judged as not, abandoning described sip message.

13, a kind of system that sip message in the communication network is filtered is characterized in that, comprising:

At least one message transmitting apparatus is used for sending described sip message by described communication network;

At least one message sink equipment is used to receive described sip message;

At least one message screening server, this message screening server lotus root is connected in the described communication network, and this message screening server comprises:

Receiving element is used to receive described sip message;

Memory cell is used to store the message screening rule about described message sink equipment;

Identifying unit is used to judge whether described sip message is allowed by described message screening rule;

Transmitting element with the described identifying unit first end lotus root connects is used for sending described sip message to described message sink equipment;

With the preservation unit that the described identifying unit second end lotus root connects, be used for described message is preserved;

With the wait unit that described identifying unit the 3rd end lotus root connects, be used to wait for that described message screening rule allows.

14, system as claimed in claim 13 is characterized in that, described message screening rule is:

If the time is the interruption-free in described message screening rule in the time period not, then allow; Otherwise do not allow.

Images