WO2007128221A1 - A method and system of routing and addressing for short message - Google Patents

Abstract

A method and system of routing and addressing for short message are provided. After it receives the short message, which is sent from Short Message Service Center (SMSC) to the unregistered identity of IP Multimedia subsystem (IMS) domain, the short message gateway node queries the Home Location Register Unit to get the address of IP Short Message Gateway (IP-SM-GW) related to the unregistered identity. The short message gateway node forwards the said short message to the said IP-SM-GW. After it receives said short message, the said IP-SM-GW performs the addressing to the Application Server (AS) hosting said unregistered identity in the IMS domain, and forwards the said short message to the said AS. The said method and system can efficiently resolve the problem of routing and addressing the short message to the Application Server in the IMS domain. The said method and system can realize the interaction procedure between user and Application Server with short message, and the short message communication procedure between the user in CS domain and the unregistered identity in IMS domain.

Description

 Method and system for routing routing of short message

 The present invention relates to the field of mobile communication technologies, and in particular, to a route addressing technology for short messages.

Background of the invention

 At present, the application of short message service in the cellular network of CS (circuit) domain is extremely successful. The short message service provides a method of transmitting a message of a certain size between terminals or between a terminal and a network entity. Moreover, the short message service realizes short message forwarding, storage, delayed transmission, and other value-added services by introducing a network entity called a short message center. At the same time, PLMN (Public Land Mobile Network) of GSM/UMTS (Global System for Mobile Communications/Universal Mobile Telecommunications System) needs to support the forwarding function of SMS between the SMS center and the terminal.

 The IMS (IP Multimedia Subsystem) was introduced in the 3GPP R5 phase and is a subsystem located above the existing network packet domain. The subsystem adopts a packet domain, and introduces a SIP (Session Initiation Protocol) protocol as a service control protocol for the bearer channel of the upper layer control signaling and the media transmission, and utilizes the characteristics that the SIP is simple, easy to expand, and the media combination is convenient. Provides rich multimedia services by separating service control from bearer control.

 IMS's network convergence solution enables operators to provide the same services to both fixed and mobile users based on a unified core network. For the network architecture where the core network of the fixed network and the mobile network coexist, IMS can not only reduce the complexity of the network structure, but also reduce the operation and maintenance costs of the network.

 Because the short message service is successfully applied in the existing cellular system, and the IMS independent of the access network is the future development direction of the network, the 3GPP considers extending the short message service to the IP connection of the non-cellular network. To this end, 3GPP has defined a set of network architectures to support this extension, as shown in Figure 1. The functions of each network entity in Figure 1 specifically include:

 SME: Short Messaging Entity, which can receive or improve short messages, which are located in fixed-line systems, mobile base stations or other service centers;

 SMSC: Short Message Service Center, which is responsible for relaying, storing or forwarding short messages between the base station and the SME; ME (Mobile Equipment, mobile station) to SMSC protocol can be transmitted from the mobile station or Short message to the mobile station, the protocol name is SMTP (Short Message Transmission Protocol);

SMS-IWMSC/SMS-GMSC: respectively an ingress gateway and an egress gateway of the SMSC, the entity receives the short message sent by the SMSC, and the routing information is queried by the SMS-GMSC to the HLR (Home Location Register), and Send the short message to the switching center of the base station where the receiver is located. On the live network, SMS-GMSC, SMS-IWSMSC are generally set up;

 OCS: Online Charging System. When the entity uses online charging, the AS sends the accounting information to the OCS through the Rf interface.

 CGF/CDF: The Charging Gateway Functionality entity. When offline charging, the AS sends the charging information to the CGF through the Ro reference point. On the Rf and Ro interfaces, the AS uses the ACR message transmission meter of the DIAMETER protocol. The fee information is sent to the OCS or CGF, and the ACA message of the DIAMETER protocol is used to receive the response from the OCS or the CGF;

 IP-SM-GW: IP short message gateway, the entity is used to provide interworking functions for transmitting short messages between the UE and the GSM/UMTS network, and can be used as an IP-SM-GW entity by using an AS in the IMS domain;

 HSS/HLR: Home Subscriber Server/Home Location Register, which is the location registration unit of the home domain, which is used to provide routing functions for SMS services. When the system terminates the MT (downlink message, that is, the SMS message from the SMSC to the called party), the SMS-GMSC sends a route request message to the HLR/HSS. If the UE (User Equipment) has previously registered to register the IP- The address of the SM-GW needs to return the address of the IP-SM-GW in the E.164 format to the SMS-GMSC in the route response message.

 Based on the network architecture shown in FIG. 1, the prior art provides two technical solutions for the routing process in terminating the short message process.

 First, the registration process of the IMS domain user in the prior art solution 1 is described with reference to FIG. 2, including: Step 21: The UE initiates a normal registration/re-registration process in the IMS domain;

 Step 22: The S-CSCF (Serving-CSCF, Serving CSCF) checks the triggering rule, finds the address of the IP-SM-GW, and triggers the third-party registration process.

 The triggering rule is an IMS triggering rule that the user subscribes to; the third party here is an IP-SM-GW or an HSS/HLR.

 Step 23: After receiving the registration message sent by the S-CSCF, the IP-SM-GW stores the address of the S-CSCF. Step 24: The IP-SM-GW initiates the registration process to the HSS/HLR, that is, sends the message to the HSS/HLR. Register the MAP-Register message;

 Step 25: The HSS/HLR stores the E.164 address information of the IP-SM-GW, and returns a registration response, that is, returns a MAP-Register Rs message;

Step 26: After receiving the response message, the IP-SM-GW returns a 200 OK response message to the S-CSCF. Step 27: After receiving the 200 OK response message, the S-CSCF continues to return a 200 OK response to the UE. Message. The 200 OK is a status value of the response, and if the return status value is 200, the status is normal. The above is the user registration process of the IMS domain. After the user registration is successful, the user's relevant address information is stored in the HSS/HLR. Thus, when the short message is terminated, the system can complete the routing process to the user.

 The process of sending the MT short message in the prior art scheme 1 will be described below with reference to FIG.

 Step 31: The UE registers with the S-CSCF through the IMS registration process, and performs the foregoing SMS registration process. Step 32: The SMSC forwards the SMS message to the SMS-GMSC.

 Step 33: After receiving the message, the SMS-GMSC sends a route request message Route Req to the HLR/HSS, where the message includes an indication, where the indication is used to mark the SMS-GMSC to support IP message routing;

 Step 34: After receiving the routing request message, the HSS/HLR returns a route response message Route Rsp to the SMS-GMSC, where the message carries the E.164 address of the IP-SM-GW registered when the user registers;

 Step 35: After receiving the response message, the SMS-GMSC sends a forward SMS FORWARD_SMS to the IP-SM-GW, where the short message carries the MSISDN (Mobile Subscriber Number) of the UE;

 Step 36: After receiving the short message, the IP-SM-GW converts the MSISDN into a TelUrl (telephone resource locator), and finds a corresponding S-CSCF address according to the TelUrl.

 The TelUrl uses the syntax of the URL to represent a conventional E.164 number for identifying a resource occupying a certain telephone number.

 Step 37: The IP-SM-GW sends an SMS to the S-CSCF according to the determined S-CSCF address.

 Step 38: The S-CSCF forwards the SIP message SIP MESSAGE to the UE.

 Step 39: After receiving the SIP MESSAGE, the UE returns a 200 OK response to the S-CSCF.

 Step 310: After receiving the foregoing 200 OK response, the S-CSCF sends 200 O to the IP-SM-GW.

 Step 311: The UE sends a report Deliver Report to the S-CSCF through the SIP MESSAGE.

 Step 312: After receiving the foregoing delivery report, the S-CSCF forwards the SIP MESSAGE to the IP-SM-GW according to the filtering rule.

 The filtering rule is an IMS filtering rule that the user subscribes to.

 Step 313: After receiving the SIP MESSAGE, the IP-SM-GW sends a delivery report to the SMS-GMSC. Step 314: After receiving the delivery report sent by the IP-SM-GW, the SMS-GMSC sends a report status to the Deliver. Report Status to HLR/HSS;

 Step 315, the SMS-GMSC resends the delivery report to the SMSC;

 Step 316: The IP-SM-GW sends a 200 OK response to the S-CSCF.

Step 317: After receiving the response sent by the IP-SM-GW, the S-CSCF sends a 200 OK response to the UE, that is, the MT short message is successfully sent. As can be seen from the above description, in order to implement the transmission of the downlink short message, the registration process of the two links needs to be implemented in the registration process: one is the registration process of the S-CSCF to the IP-SM-GW; the second is the IP-SM-GW to Registration process for HSS/HLR. If the user does not register, the registration process for the above two links will not be executed. If the above two registration processes are not performed in the network, when the system terminates the short message, the unregistered user cannot be routed. In this case, the sending of the downlink short message cannot be realized. For example, a PSI (Public User Identity) in an IMS domain is an unregistered user who does not need to register when using it.

 In the prior art, a PSI AS called addressing method is provided, and the method mainly includes the following specific implementation manners-

1, direct addressing method:

 The I-CSCF (Interrogating-CSCF, Query CSCF) directly queries the HSS/HLR to obtain the AS address of the called PSI, which is directly routed to the AS where the PSI is located.

 2. Indirect addressing method:

 The address of the S-CSCF is obtained by the I-CSCF to the HSS/HLR. After the short message is sent to the S-CSCF, the S-CSCF routes to the AS where the called PSI is located according to the filtering rule.

 3, DNS (Domain Name Server, domain name server) routing method:

 A list of supported domain/network names is maintained by the I-CSCF. After receiving the short message, the I-CSCF matches whether the network name corresponding to the called PSI matches the corresponding content in the list maintained by the I-CSCF. If it matches, the DNS query is obtained. Obtain the AS address.

 In the above PSI AS called addressing method, the prior art mainly considers the route addressing process of the AS where the PSI is located in the user session, and does not consider the CS interworking in the CS domain to the IMS domain. The process in which the UE sends a short message to the PSI of the IMS domain.

 At the same time, the prior art cannot implement the process of short message routing from the CS domain to the UE that has signed the unregistered service of the IMS domain.

Summary of the invention

 The embodiment of the invention mainly provides a method and a system for routing a short message, so as to extend the short message function of the circuit domain and the IMS domain to the public service identifier of the IMS domain.

 The embodiment of the invention is implemented by the following solutions:

 A method for routing a short message according to an embodiment of the present invention includes:

After receiving the short message of the unregistered identifier sent by the short message center SMSC to the IMS domain of the IP multimedia subsystem, the short message gateway node obtains the address of the IP short message gateway IP-SM-GW corresponding to the unregistered identifier from the home domain location registration unit. And sending the short message to the IP-SM-GW;

 After receiving the short message, the IP-SM-GW addresses the application server AS of the IMS domain where the unregistered identifier is located, and forwards the short message to the AS. The embodiment of the invention provides a route addressing system for short messages, including:

 The short message receiving module is disposed at the short message gateway node, and is configured to receive an unregistered short message sent by the short message center SMSC to the IMS domain of the IP multimedia subsystem, and trigger an IP-SM-GW routing information acquiring module;

 The IP-SM-GW routing information obtaining module is configured to obtain the routing information of the IP-SM-GW from the home location registration unit, and provide the routing information to the short message sending module;

 a short message sending module, configured to send the short message from the short message gateway node to the IP-SM-GW, and trigger an AS address addressing module;

 An AS address addressing module, initiated by the IP-SM-GW, for addressing an AS in which an unregistered identifier of the IMS domain is located;

 The short message forwarding module is configured to forward the short message to the corresponding AS according to the addressed AS address. It can be seen that the technical solution provided by the foregoing embodiment of the present invention can effectively solve the problem of routing addressing of the short message to the IMS domain application server in the circuit domain, and extend the short message function of the circuit domain and the IMS domain to the IMS domain. The registration identifier, such as the public service identifier or the UE that has subscribed to the unregistered service, can implement the function of the UE in the circuit domain to send the short message to the unregistered identifier of the IMS domain, thereby implementing the unregistered CS domain user and the IMS domain. SMS intercommunication between the logos.

 The embodiment of the present invention can also implement a process in which a user interacts with an application server through a short message, such as an operation such as signing a user. In addition, the embodiments of the present invention can provide richer applications for users in the CS domain and the IMS domain, such as implementing a short message group sending function and enhancing the user experience.

BRIEF DESCRIPTION OF THE DRAWINGS

 1 is a schematic diagram of a network architecture in which a short message service defined by 3GPP is extended to an IP connection;

 2 is a flow chart of IMS domain user registration given in the first solution of the prior art;

 3 is a flow chart of sending MT SMS according to the first solution of the prior art;

 4 is a schematic structural diagram of a network model 1 required for implementation of the present invention;

 FIG. 5 is a flowchart of a specific implementation corresponding to the method 21 provided by the present invention;

 6 is a schematic structural diagram of a network model 2 required for implementation of the present invention;

Figure Ί is a specific implementation flow chart corresponding to the method 22 provided by the present invention; 8 is a schematic structural diagram of a network model 3 required for implementation of the present invention;

 9 is a flowchart of a specific implementation corresponding to the method 23 provided by the present invention;

 FIG. 10 is a flowchart of a specific implementation corresponding to the method 24 provided by the present invention;

 FIG. 11 is a schematic diagram of a specific implementation of a short message routing and addressing system provided by the present invention.

Mode for carrying out the invention

 According to the related introduction in the background art, the user needs to register in the IMS domain, and record the address of the user service processing node in the IP-SM-GW, so as to route the registered user who is the called party when the short message is terminated. And finally send the text message to the user.

 In some special cases, the called party may be an unregistered identifier of the IMS domain, such as a public service identifier or a UE that has subscribed to an unregistered service, where the public service identifier is often provided by the provider, and the The public service identifier does not have (required) the registration process in the IMS domain, and the service processing node is the application server where the public service identifier is located, and the embodiment of the present invention mainly targets the unregistered identifier when the called party is the IMS domain. When the short message is terminated, the process of addressing the application server address where the unregistered identifier of the IMS domain is located is given, thereby implementing the process of interworking between the CS domain user and the unregistered identifier of the IMS domain.

 The embodiment of the invention is mainly implemented by the following steps:

 Step 1. After receiving the short message of the unregistered identifier sent by the SMSC to the IMS domain, the SMS-GMSC obtains the address of the IP-SM-GW corresponding to the unregistered identifier from the home location registering unit, and sends the short message to the IP address. -SM-GW;

 Step 2: After receiving the short message, the IP-SM-GW addresses the AS of the IMS domain where the unregistered identifier is located, and forwards the short message to the AS.

 The addressing process provided by the above embodiment of the present invention can extend the short message service from the CS domain and the IMS domain to the unregistered identity of the IMS domain.

 The above two main processes for carrying out the invention are further elaborated below.

 The embodiment of the present invention provides three implementation methods for step 1, which are respectively:

 Method 11: Pre-set the correspondence between the unregistered identifier and the IP-SM-GW address on the HSS/HLR, and the SMS-GMSC sends a route to the HSS/HLR for the IP short message gateway IP-SM-GW address corresponding to the unregistered identifier. When the information is requested, the HSS/HLR returns the set IP-SM-GW address to the SMS-GMSC according to the corresponding relationship;

 The specific implementation process can be:

Step a, pre-setting the E.164 address of the IP-SM-GW corresponding to the unregistered identifier on the HSS/HLR; Step a2, the SMSC sends a Short Message to the SMS-GMSC;

 Step a3: The SMS-GMSC sends a Route Req message to the HSS/HLR to obtain routing information.

 Step a4: The HSS/HLR sends a Route Response (Route Rsp) message to the SMS-GMSC according to the stored unregistered identifier and the corresponding relationship of the IP-SM-GW, and returns the address of the IP-SM-GW.

 The route response message carries an address of the IP-SM-GW.

 Step a5: The SMS-GMSC forwards the short message to the corresponding IP-SM-GW according to the received address of the IP-SM-GW.

 Method 12: Pre-set the correspondence between the unregistered identifier and the multiple IP-SM-GW addresses on the HSS/HLR, and dynamically designate an IP-SM-GW by the HSS/HLR; when the SMS-GMSC sends a pair to the HSS/HLR When the routing request of the AS address of the application server is not registered, the HSS/HLR returns the specified IP-SM-GW address to the SMS-GMSC;

 The specific implementation process may be: Step bl, pre-configuring the correspondence between the unregistered identifier and the multiple IP-SM-GWs on the HSS/HLR, and dynamically assigning an IP-SM-GW to the unregistered identifier by the HSS/HLR. E.164 address;

 Steps b2 to b5 are the same as steps a2 to a5.

 Method 13: A network node that passes routing signaling between the short message gateway and the HSS/HLR, such as a routing signaling interception point, sets a correspondence between an unregistered identifier and an IP-SM-GW address, and is intercepted by the network node. The SMS-GMSC takes the route request signaling to the HSS/HLR; and the network node returns the IP-SM-GW address corresponding to the unregistered identifier to the SMS-GMSC.

 The specific implementation process can be:

 Step cl: pre-configure an IP-SM-GW address corresponding to the unregistered identifier on the network node through which the routing signaling between the SMS-GMSC and the HSS/HLR passes;

 The network node may be a routing signaling intercept point between the SMS-GMSC and the HSS/HLR, or the network node may be specifically set.

 Step c2, the SMSC sends a short message to the SMS-GMSC;

 Step c3, the SMS-GMSC sends the route request signaling to the HSS/HLR;

Step c4: The signaling interception point between the SMS-GMSC and the HSS/HLR intercepts the foregoing routing request signaling; Step c5: The signaling interception point sends the IP-SM-GW address corresponding to the unregistered identifier to the Said SMS-GMSC. Returning the IP-SM-GW address by the signaling intercept point can eliminate the need to look up the IP-SM-GW address information on the HSS/HLR.

 In addition, when the called party is the UE that has subscribed to the unregistered service, if the UE is identified as a UE that is logged out after being registered in the IMS domain, the short message gateway node obtains a corresponding to the UE by the corresponding home domain registration unit. The IP-SM-GW address, the HSS/HLR returns the IP-SM-GW address registered when the UE identity was last registered to the SMS gateway node.

 The embodiment of the present invention also provides a corresponding implementation method for step 2. First, when the called party is the public service identifier, the step 2 can be implemented by the following methods:

 Method 21: The IP-SM-GW directly routes to the AS: the IP-SM-GW enhances the part of the function, that is, the enhanced query function, and the unit corresponding to the AS address information corresponding to the public service identifier, such as the HSS/HLR, queries the public service identifier. AS address, and after retrieving the AS address, routing the short message to the AS;

 Method 22: The IP-SM-GW indirectly routes to the AS through the I-CSCF: the IP-SM-GW specifies an I-CSCF, and firstly routes the short message to the I-CSCF, and then the I-CSCF corresponds to the public service identifier. The unit where the AS address information is located, for example, the HSS/HLR retrieves the AS address corresponding to the public service identifier, and then routes the short message to the AS;

 Method 23: The IP-SM-GW queries the DNS server to query the AS address: The IP-SM-GW maintains a list of supported domains or network names, if the IP-SM-GW maintains the related content in the list and the IP-SM - The network domain name corresponding to the public service identifier of the called GW is matched, and the IP-SM-GW queries the DNS and obtains the AS address corresponding to the public service identifier, and then routes the short message to the AS.

 When the called party is the unregistered identifier of the IMS domain, such as the public service identifier or the UE that has subscribed to the unregistered service, step 2 can be implemented by the following methods, including:

 Method 24: The IP-SM-GW is indirectly routed to the AS through the S-CSCF: the IP-SM-GW first obtains an S-CSCF that processes the unregistered identity service, and then routes the short message to the S-CSCF, and then the S-CSCF The CSCF routes to the AS where the unregistered identity is located.

 It should be noted that, when the method of the method 21 or the method 22 is adopted, correspondingly, in the step a1, step bl or step cl corresponding to the method 11, method 12 or method 13, except Setting the IP-SM-GW address, the AS address of the public service identifier needs to be set on the designated network node, and the AS address can be set in the home domain location registration unit, or can be specifically set in the network. A network node on which the AS address is set. In the following description of the specific embodiments of the method 21, method 22, method 23 and method 24, the AS address is set on the HSS/HLR as an example.

In addition, in the above methods 21 to 24, the IP-SM-GW does not have an unregistered identifier as for a normal registered user. The associated S-CSCF address is checked for validity. Because for the registered user, the IP-SM-GW checks the validity of the address registered by the user to the S-CSCF, and after the verification is valid, continues the sending process of the short message; and the unregistered identifier is not registered. Therefore, the IP-SM-GW cannot detect the validity of an S-CSCF address specified for the unregistered identifier. If the IP-SM-GW is still required to check the validity of the unregistered S-CSCF address, The subsequent routing process cannot be executed, and the entire final SMS process is invalidated.

 The present invention is directed to the above methods 21 to 24, and the following embodiments are correspondingly given.

 Embodiment 1 corresponding to the method 21 described in the present invention is described below with reference to FIG. 4 and FIG. 5, and includes the following steps:

 Step 51 to step 55 may perform step a to step a5 corresponding to method 11, or step bl or step b5 corresponding to method 12, or step cl or step c5 corresponding to method 13;

 Step 56: After receiving the short message, the IP-SM-GW determines, according to the called party, that the called party does not register the corresponding S-CSCF address, that is, the called party is not registered; or according to the IP-SM-GW After the public service identifier list is configured, the IP-SM-GW sends a query request Query Req message to the HSS/HLR to request the routing information again.

 The request message function described in step 56 can be implemented by using the original LIR and LIA messages between the I-CSCF and the HSS/HLR, and also by expanding the message parameters of the Sh interface.

 Step 57: After receiving the query request message, the HSS/HLR sends a query response Query Rsp message to the IP-SM-GW according to the stored relationship between the public service identifier and the AS, and returns the address of the AS.

 The query response message carries an AS address.

 Step 58: After receiving the AS address, the IP-SM-GW forwards the short message to the AS;

 Step 59: After receiving the short message, the AS returns a 200 OK response to the IP-SM-GW.

 Step 510, after the AS sends the short message to the S-CSCF registered by each terminal according to the service information of the public service identifier;

 Step 511: After receiving the short message, the S-CSCF forwards the short message to the corresponding one or more UEs. Step 512: After receiving the short message, the UE returns a 200 OK response to the S-CSCF.

 Step 513: After receiving the response from the UE, the S-CSCF returns a 200 OK to the AS.

In the foregoing step 51 to step 513, step 51 to step 55 are specific implementation manners of the method 11, and steps 56 to 519 are used to implement the routing process in which the short message of the circuit domain reaches the application server where the public service identifier of the IMS domain is located by using the method 21. . Step 510 to step 513 are optional steps, and it can be seen from the implementation of step 511 that the present invention can implement the group sending function of the short message. In addition, the specific content and process of message interaction between each network element in FIG. Corresponding steps in the above embodiment 1 correspond.

 The embodiment 2 corresponding to the method 22 given by the present invention will be described with reference to FIG. 6 and FIG. 7 as follows:

 Step 71 to step 75 can be the same as step 51 to step 55;

 Step 76: The IP-SM-GW parses an I-CSCF of the domain where the AS of the public service identifier is located according to the ENUM/DNS, and forwards the short message to the I-CSCF.

 The ENUM (Telephone Number Mapping Working Group) is a standard issued by the IETF, which defines how to convert a phone number conforming to the E.164 standard into a domain name format and store it in a DNS server, if the public The service identification number conforms to the E.164 standard, and the implementation may be employed, and the IP-SM-GW described herein shall include the ENUM function.

 Step 77: After receiving the short message, the I-CSCF returns a 200 OK response to the IP-SM-GW.

 Step 78: The I-CSCF sends a LIR message to the HSS/HLR to request the called party, that is, the routing information of the public service identifier.

 The HSS/HLR described in step 78 may not be the same as the HSS/HLR in step 73, because the two HSS/HLRs may be in different home domains, which does not affect the acquisition of the correct AS address, as long as In the actual operation, you can find out the role of the above two HSS HLRs.

 Step 79: After receiving the LIR message, the HSS/HLR returns a LIA message to the I-CSCF, where the LIA message carries the address of the AS where the public service identifier is located;

 Step 710: After receiving the AS address, the I-CSCF forwards the short message to the AS.

 Step 711: After receiving the short message, the AS returns a 200 OK response to the I-CSCF.

 The foregoing step 76 to step 711 are performed by using the method 22 to implement a routing process in which the short message of the circuit domain reaches the application server where the public service identifier of the IMS domain is located.

 In addition, the specific content and process of the message interaction between the network elements in FIG. 6 correspond to the related steps in the second embodiment. The third embodiment corresponding to the method 23 given by the present invention will be described with reference to FIG. 8 and FIG. 9 as follows:

 Steps 91 to 95 can be the same as steps 51 to 55;

 Step 96: The IP-SM-GW pre-configures a list of supported domain or network names, or may be configured to directly query the DNS;

 Step 97: If the IP-SM-GW maintains the related content in the list and matches the network domain name corresponding to the called party public service identifier received by the IP-SM-GW, or the IP-SM-GW is configured to directly go to the DNS. Query, the IP-SM-GW sends a DNS query DNS Query message to the DNS server;

Step 98: After receiving the query message, the DNS server returns the AS where the PSI is located to the IP-SM-GW. Address

 Step 99: After receiving the AS address, the IP-SM-GW forwards the short message to the AS;

 Step 910: After receiving the short message, the AS returns a 200 OK response to the IP-SM-GW.

 The foregoing steps 96 to 910 are used to implement the routing process in which the short message of the circuit domain reaches the application server where the public service identifier of the IMS domain is located by using the method 23.

 In addition, the specific content and process of the message interaction between the network elements in FIG. 8 correspond to the related steps in the third embodiment. The fourth embodiment corresponding to the method 24 given by the present invention will be described with reference to FIG. 8 and FIG.

 Step 101 to step 105 can be the same as step 51 to step 55;

 Step 106: The IP-SM-GW specifies an S-CSCF according to the data configuration of the S-CSCF, and forwards the short message to the S-CSCF.

 Step 107: After receiving the short message, the S-CSCF returns a 200 OK response to the IP-SM-GW. Step 108: The S-CSCF resolves to the AS address according to the filtering rule or the DNS, and forwards the short message. Give the said

AS;

 The filtering rule belongs to the content of the user subscription data of the IMS domain. In the step 108, the S-CSCF downloads the filtering rule information from the home subscription subscriber server HSS, and processes the unregistered identity service according to the filtering rule. The node corresponds to the corresponding AS; the DNS resolution searches for the corresponding AS address through the domain name corresponding to the unregistered identifier.

 Step 109: After receiving the short message, the AS returns a 200 OK response to the S-CSCF.

 The foregoing steps 106 to 109 are used to implement the routing process in which the short message of the circuit domain reaches the IMS domain public service identifier or the application server of the UE that has signed the unregistered service by using the method 24. In addition, the specific content and process of the message interaction between the network elements in FIG. 8 correspond to the related steps in the fourth embodiment.

 The embodiment of the present invention further provides a route addressing system for short messages as shown in FIG. 11, which specifically includes the following modules:

(1) SMS receiving module

 The SMS gateway node, such as the SMS-IWMSC/SMS-GMSC, is configured to receive the unregistered identifier sent by the SMSC to the IMS domain, and trigger the IP-SM-GW routing information acquisition module.

 The unregistered identifier includes a public service identifier or a user equipment UE identifier that has been contracted for an unregistered service.

(2) IP-SM-GW routing information acquisition module

The routing information for obtaining the IP-SM-GW from the home location registration unit is provided to the short message sending module. The IP-SM-GW routing information acquiring module specifically includes: The IP-SM-GW routing request sending module is configured to be sent to the short message gateway node, and configured to send a routing request of the IP-SM-GW address corresponding to the unregistered identifier to the home domain location registration unit, and trigger the IP-SM- GW address information acquisition module;

 The IP-SM-GW address information obtaining module is configured to be located at a corresponding network node, such as an HSS/HLR or a signaling intercept point passing through a routing signaling between the short message gateway and the home domain location registration unit, for acquiring and not The IP-SM-GW address corresponding to the registration identifier;

 The IP-SM-GW address information acquiring module is set in the home domain, when the called party is the UE that has signed the unregistered service, and the UE is the UE that is logged out after the IMS domain is registered. a location registration unit, and the IP-SM-GW address information acquisition module directly acquires an IP-SM-GW address registered by the UE identity at the time of registration from the home domain location registration unit.

 The IP-SM-GW address information sending module is set on the short message gateway node, and is triggered by the IP-SM-GW address information obtaining module, and is used to send the obtained IP-SM-GW address information to the short message sending module.

 (3) IP-SM-GW address information setting module

 a signaling interception point disposed at a corresponding network node, such as an HSS/HLR or a routing signaling from the short message gateway to the home domain location registration unit, for setting a corresponding one of the unregistered identifiers on the network node Or multiple IP-SM-GW addresses.

 When the IP-SM-GW address information setting module is set to the signaling interception point, the IP-SM-GW address information acquiring module is disposed at the signaling intercepting point, and the system further includes:

 (4) IP-SM-GW routing request signaling intercept module

 The signaling interception point is configured to intercept an IP-SM-GW routing request signaling sent by the short message gateway node to the home domain location registration unit, and trigger an IP-SM-GW address information obtaining module.

 When a plurality of IP-SM-GW addresses corresponding to the unregistered identifiers are set on the IP-SM-GW address information setting module, the IP-SM-GW address information setting module is set on the HSS/HLR, and The system also includes:

(5) The IP-SM-GW dynamic designation module is disposed in the HSS/HLR, and is configured to dynamically specify a preset IP-SM-GW for the unregistered identifier.

 (6) SMS sending module

 The SMS gateway node is configured to send a short message from the SMS gateway node to the IP-SM-GW, and trigger an AS address addressing module.

 (7) AS address addressing module

The addressing is initiated by the IP-SM-GW for addressing the AS where the unregistered identity of the IMS domain is located. When the method 21 or the method 22 in the above method description, the system further includes:

(8) AS address information setting module

 It is used to set the AS address information on the HSS/HLR or the specially set network node. When the IP-SM-GW directly queries the local domain location registration unit or the specially set network node and retrieves the AS address where the public service identifier is located. Providing the AS address information to the corresponding AS address information delivery module; or when the IP-SM-GW specifies an I-CSCF, the I-CSCF retrieves the public service from the home domain location registration unit or the specially set network node. When the AS address is identified, the AS address information is provided to the corresponding AS address information obtaining module.

 Generally, in the specific implementation, the AS address information setting module is set on the HSS/HLR, and FIG. 11 also shows the case where the AS address information setting module is set in the HSS/HLR; if the setting is performed on the dedicated setting network node The AS address information is similar to the setting of the AS address information in the HSS/HLR except for the addition of the specially set network node.

 (9) The short message forwarding module is configured to forward the short message to the corresponding AS according to the addressed AS address. The AS address addressing module specifically includes:

 An S-CSCF specifying module, configured to be configured by the IP-SM-GW, for specifying an S-CSCF corresponding to an unregistered identifier, and forwarding the short message from the IP-SM-GW to the S-CSCF, and triggering the AS Address resolution module;

 An AS address parsing module is configured to parse the AS address where the unregistered identifier is located, and trigger the short message forwarding module to forward the short message from the S-CSCF to the corresponding AS; The short message forwarding module is disposed on the S-CSCF.

 The S-CSCF designation module and the AS address information parsing module can implement the indirect addressing process of the IP-SM-GW through the S-CSCF, corresponding to the above method 24.

 When the called party is the public service identifier, the AS address addressing module specifically includes:

 The AS address information request sending module is configured to be sent to the HSS/HLR (or the specially set network node) to send a routing request of the AS where the public service identifier is located, and trigger the AS address information sending module;

 The AS address information is sent to the HSS/HLR (or a specially set network node) for obtaining the AS address information from the AS address information setting module, and the AS address information is sent to the IP-SM- GW, and triggering the short message forwarding module to forward the short message from the IP-SM-GW to the corresponding AS; and, at this time, the short message forwarding module is set on the IP-SM-GW.

 Corresponding to the method 21 described above, the AS address information request sending module and the AS address information sending module can implement the direct addressing process of the IP-SM-GW.

Alternatively, the AS address addressing module specifically includes: An I-CSCF specifying module, configured in the IP-SM-GW, configured to specify an I-CSCF for the AS where the public service identifier is located, and forward the short message to the I-CSCF;

 The AS address information obtaining module is set in the I-CSCF and is triggered by the I-CSCF designating module, and is configured to obtain the address information of the AS where the public service identifier is located from the AS address information setting module, and trigger the short message forwarding module to send the short message. Forwarding from the I-CSCF to the corresponding AS; and, at this time, the short message forwarding module is set on the I-CSCF; corresponding to the method 22 described above, the I-CSCF specifies the module and the AS address information is obtained. Modules The two modules implement the process of IP-SM-GW indirect addressing through the I-CSCF.

 Alternatively, the AS address addressing module specifically includes:

 The IP-SM-GW to DNS query configuration module is configured on the IP-SM-GW to configure the domain or network name information supported by the IP-SM-GW, or configured to configure the IP-SM-GW to directly address the DNS. Query, and trigger the AS address information return module;

 The AS address information query module is configured to be used by the DNS to query the address of the AS where the public service identifier is located from the DNS;

 The AS address information sending module is configured to be configured to send the AS address information to the IP-SM-GW, and trigger the short message forwarding module to send the short message from the IP-SM-GW. Forwarding to the corresponding AS; At this time, the short message forwarding module is set on the IP-SM-GW.

 Corresponding to the method 23 described above, the IP-SM-GW to DNS query configuration module, the AS address information query module, and the AS address information delivery module can implement the IP-SM-GW through the DNS. The addressing process.

 The addressing module can implement the addressing process of terminating the short message by the corresponding combination of the above modules.

 In summary, the embodiment of the present invention can effectively solve the problem of route addressing of a short message to an IMS domain application server, and extend the short message of the circuit domain and the IMS domain to the public service identifier of the IMS domain. Therefore, the embodiment of the present invention can implement the circuit domain. The function of sending a short message to the public service identifier of the IMS domain is implemented by the UE to implement short message communication between the CS domain user and the public service identifier of the IMS domain. The embodiment of the present invention can also implement a process in which a user interacts with an application server through a short message, such as implementing a user subscription. In the meantime, the embodiments of the present invention can provide more rich applications for CS domain and IMS domain users, such as implementing a short message group sending function and enhancing the user experience.

 The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope disclosed by the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

Rights request  A method for routing a short message, which is characterized by comprising:  After receiving the short message of the unregistered identifier sent by the short message center SMSC to the IMS domain of the IP multimedia subsystem, the short message gateway node obtains the address of the IP short message gateway IP-SM-GW corresponding to the unregistered identifier from the home domain location registration unit, and Sending the short message to the IP-SM-GW;  After receiving the short message, the IP-SM-GW addresses the application server AS of the IMS domain where the unregistered identifier is located, and forwards the short message to the AS.  2. The method according to claim 1, wherein the unregistered identifier comprises:  Public service identity or user equipment UE identity that has been contracted for unregistered service.  3. The method according to claim 1, comprising:  The short message gateway node includes a short message egress gateway SMS-GMSC;  The home domain location registration unit includes a home subscription subscriber server HSS or a home location register HLR.  The method of claim 1, wherein the obtaining the address of the IP short message gateway IP-SM-GW corresponding to the unregistered identifier comprises:  Corresponding relationship between the unregistered identifier and an IP-SM-GW address is preset on the home domain location registration unit, and the preset IP-SM-GW address is returned to the short message by the home domain location registration unit. Net joints occupy,,,,,  Or,  Corresponding relationship between the unregistered identifier and the plurality of IP-SM-GW addresses is preset on the home domain location registration unit, and the home domain location registration unit dynamically assigns an IP-SM-GW to the unregistered identifier, and the The IP-SM-GW address is returned to the SMS gateway node;  Or,  The network node through which the routing signaling between the short message gateway and the home domain location registration unit passes pre-sets the correspondence between the unregistered identifier and an IP-SM-GW address, and the network node intercepts the SMS-GMSC to the home domain location registration unit. The route request signaling is performed, and the network node returns the IP-SM-GW address corresponding to the unregistered identifier to the short message gateway node.  The method according to claim 2, wherein, when the called party is the user equipment UE that has signed the unregistered service, the acquiring the IP short message gateway IP-SM corresponding to the unregistered identifier -GW's address includes: When the UE is identified as a UE that is logged out after being registered in the IMS domain, the short message gateway node is to the corresponding home domain. The location registration unit acquires an IP-SM-GW address corresponding to the UE, and the UE that has signed the unregistered service identifies the IP-SM-GW address registered at the time of registration by the home domain location registration unit. Return to the SMS gateway node.  The method according to claim 1 or 2, wherein the addressing the application server AS of the IMS domain in which the unregistered identifier is located includes:  The IP-SM-GW first assigns an S-CSCF, and then the S-CSCF routes to the AS where the unregistered identifier is located. The method according to claim 6, wherein the addressing the application server AS of the IMS domain in which the unregistered identifier is located specifically includes:  The IP-SM-GW specifies an S-CSCF that processes the unregistered identity service, and then forwards the received short message to the S-CSCF; after receiving the short message, the S-CSCF is configured according to the slave subscriber subscription server. The filtering rule or DNS of the HSS download resolves to the AS address, and forwards the short message to the AS.  The method according to claim 2, wherein when the called party is a public service identifier, the addressing comprises:  The IP-SM-GW directly queries and retrieves the AS address where the public service identifier is located to the home domain location registration unit; or  The IP-SM-GW specifies an inquiry call service controller I-CSCF, and the I-CSCF retrieves the AS address of the public service identifier from the home domain location registration unit;  Or,  The IP-SM-GW retrieves the AS address where the public service identifier is located by querying the DNS server.  The method according to claim 8, wherein when the IP-SM-GW is used to directly query the home domain location registration unit or the IP-SM-GW specifies a query call service controller I-CSCF In the address mode, the address of the IP short message gateway IP-SM-GW corresponding to the unregistered identifier is further included:  Setting the AS address information of the public service identifier on the corresponding network node.  10. The method according to claim 9, wherein the corresponding network node comprises: a home domain location registration unit or a specially set network node.  The method according to claim 8, wherein the addressing of the application server AS of the IMS domain in which the unregistered identifier is located specifically includes - The IP-SM-GW determines that the called party is a public service identifier according to the received called party, and requests the address information of the AS where the public service identifier is located to the home domain location registration unit; The unit returns the AS address information to the IP-SM-GW according to the stored correspondence between the public service identifier and the AS, and forwards the short message to the AS by the IP-SM-GW; or,  The IP-SM-GW parses an I-CSCF of the domain in which the public service identifier is located according to the telephone number mapping work group ENUM or the domain name server DNS, and forwards the short message to the I-CSCF; the I-CSCF receives the After the short message, the home domain location registration unit retrieves the AS address corresponding to the public service identifier, and then forwards the short message to the AS;  Or,  The IP-SM-GW maintains a list of supported domain or network names, if the relevant content in the list maintained by the IP-SM-GW matches the network domain name corresponding to the public service identifier of the called SMS received by the IP-SM-GW. Or the IP-SM-GW is configured to directly query the DNS information, and the IP-SM-GW queries the DNS to query the AS address information corresponding to the public service identifier, and the DNS server returns the public service identifier to the IP-SM-GW. After receiving the AS address, the IP-SM-GW forwards the short message to the AS.  12. A route addressing system for short messages, comprising:  The short message receiving module is disposed at the short message gateway node, and is configured to receive an unregistered short message sent by the short message center SMSC to the IMS domain of the IP multimedia subsystem, and trigger an IP-SM-GW routing information acquiring module;  The IP-SM-GW routing information obtaining module is configured to obtain the routing information of the IP-SM-GW from the home location registration unit, and provide the routing information to the short message sending module;  a short message sending module, configured to send the short message from the short message gateway node to the IP-SM-GW, and trigger an AS address addressing module;  An AS address addressing module, initiated by the IP-SM-GW, for addressing an AS in which an unregistered identifier of the IMS domain is located;  The short message forwarding module is configured to forward the short message to the corresponding AS according to the addressed AS address. The system according to claim 12, wherein the unregistered identifier comprises: a public service identifier or a user equipment UE identifier that has subscribed to an unregistered service.  The system according to claim 12, wherein the IP-SM-GW routing information acquisition module comprises:  The IP-SM-GW routing request sending module is configured to be sent to the short message gateway node, and configured to send a routing request of the IP-SM-GW address corresponding to the unregistered identifier to the home domain location registration unit, and trigger the IP-SM- GW address information acquisition module;  The IP-SM-GW address information obtaining module is configured to be configured by the corresponding network node, and configured to obtain an IP-SM-GW address corresponding to the unregistered identifier; The IP-SM-GW address information delivery module is set at the SMS gateway node and is obtained by the IP-SM-GW address information. The module is triggered to send the obtained IP-SM-GW address information to the short message sending module.  The system according to claim 14, comprising:  The IP-SM-GW address information acquiring module is set in the home domain, when the called party is the UE that has signed the unregistered service, and the UE is the UE that is logged out after the IMS domain is registered. a location registration unit, and the IP-SM-GW address information acquisition module directly acquires an IP-SM-GW address registered by the UE identity at the time of registration from the home domain location registration unit.  The system according to claim 12, wherein the system further comprises:  The IP-SM-GW address information setting module is disposed on the corresponding network node, and configured to set one or more IP-SM-GW addresses corresponding to the unregistered identifiers on the network node.  The system according to claim 14 or 16, wherein the corresponding network node specifically comprises:  The home domain location registration unit or the network node through which the routing signaling between the short message gateway and the home domain location registration unit passes.  The system according to claim 17, wherein when the IP-SM-GW address information setting module is set in a network node through which routing signaling between the short message gateway and the home domain location registration unit passes, The IP-SM-GW address information obtaining module is disposed on the network node, and the system further includes:  The IP-SM-GW routing request signaling intercepting module is configured to be configured to intercept the IP-SM-GW routing request signaling sent by the short message gateway node to the home domain location registration unit, and trigger the IP-SM- GW address information acquisition module.  The system according to claim 16, wherein when the IP-SM-GW address information setting module sets a plurality of IP-SM-GW addresses corresponding to the unregistered identifiers, the IP-SM - The GW address information setting module is set in the home domain location registration unit, and the system described at this time further includes - The IP-SM-GW dynamic designation module is disposed in the home domain location registration unit, and is configured to dynamically specify a preset IP-SM-GW for the unregistered identifier.  The system according to claim 12 or 13, wherein when the called party is the public service identifier, the system further comprises: The AS address information setting module is configured to set AS address information in the home domain location registration unit or the specially set network node, and directly query and retrieve the IP-SM-GW to the home domain location registration unit or the specially set network node. When the AS address of the public service identifier is located, the AS address information is provided to the corresponding AS address information delivery module; or when the IP-SM-GW specifies an I-CSCF, the I-CSCF to the home domain location registration unit or When the specially set network node retrieves the AS address where the public service identifier is located, the AS address information is provided to the corresponding AS address letter. Information acquisition module.  The system according to claim 12, wherein the AS address addressing module comprises: an S-CSCF designation module, configured on the IP-SM-GW, configured to specify an S corresponding to an unregistered identifier. -CSCF, and forwarding the short message from the IP-SM-GW to the S-CSCF, and triggering an AS address resolution module;  The AS address parsing module is configured to parse the AS address where the unregistered identifier is located, and trigger the short message forwarding module set on the S-CSCF to forward the short message from the S-CSCF to the S-CSCF. The corresponding AS.  The system according to claim 12 or 13, wherein when the called party is said public service identity,  The AS address addressing module specifically includes:  The AS address information request sending module is configured to be sent by the IP-SM-GW to send the routing request of the AS where the public service identifier is located to the designated network node, and trigger the AS address information sending module;  The AS address information is sent to the designated network node, and is configured to obtain the AS address information from the AS address information setting module, and send the AS address information to the IP-SM-GW, and Triggering a short message forwarding module set on the IP-SM-GW to forward the short message from the IP-SM-GW to the corresponding AS;  Or,  The AS address addressing module specifically includes:  The I-CSCF designation module is configured on the IP-SM-GW, and is configured to specify an I-CSCF for the AS where the public service identifier is located, and forward the short message to the I-CSCF;  The AS address information obtaining module is set in the I-CSCF, and is triggered by the I-CSCF specifying module, and is used to obtain the address information of the AS where the public service identifier is located from the AS address information setting module, and trigger the setting on the I-CSCF. The short message forwarding module forwards the short message from the I-CSCF to the corresponding AS;  Or,  The AS address addressing module specifically includes:  The IP-SM-GW to DNS query configuration module is configured on the IP-SM-GW to configure the domain or network name information supported by the IP-SM-GW, or configured to configure the IP-SM-GW to directly DNS query, and trigger the AS address information return module;  The AS address information query module is configured on the DNS to query the address of the AS where the public service identifier is located from the DNS. 1⁄2 interest; The AS address information sending module is configured to be configured to send the AS address information to the IP-SM-GW, and trigger the short message forwarding module set on the IP-SM-GW to The short message is forwarded from the IP-SM-GW to the corresponding AS. Summary  A method and system for routing a short message, the short message gateway node receives the short message of the unregistered identifier sent by the short message center SMSC to the IMS domain of the IP multimedia subsystem, and obtains the IP short message gateway corresponding to the unregistered identifier from the home location registering unit. An IP-SM-GW address, and the short message is sent to the IP-SM-GW; after the IP-SM-GW receives the short message, the application server of the IMS domain where the unregistered identifier is located The AS performs addressing and forwards the short message to the AS. The implementation of the technical solution of the present invention can effectively solve the problem of routing and addressing the short message to the IMS domain application server, and realize the process of the user interacting with the application server through the short message and the non-registered short message of the CS domain user and the IMS domain.