WO2009115021A1 - Calling or session delivering method, device and system - Google Patents

Abstract

A calling or session delivering method, a network selecting device and a communication network system. The method includes the following steps of: receiving session information sent by a main calling terminal; acquiring network delivering information supported by the main calling terminal according to the session information; selecting a route corresponding to the network delivering information from one or multiple optional called side networks for performing delivering. Through simple network configuration, new services can be provided by using old network, and while the consistency of consumer experience can be guaranteed, complexity and cost for upgrading or replacing network devices can be reduced.

Description

 Method, device and system for calling or session connection

 The present invention relates to the field of communications, and in particular, to a method for calling or session connection, a network selection device, and a communication network system. Background technique

 With the development of communication technologies, telecommunication networks using Time Division Multiplexing (TDM) technology will gradually be replaced by telecommunication networks of the Internet Protocol (IP). However, since the user's usage habits are not easy to change suddenly, and the telecom operators have to maintain the service commitment to the users, the telecommunication network needs a long time to transition from TDM technology to IP-based technology, then the TDM-based phone. In the process of network transformation, the terminal ensures the consistency of the user experience, how to reduce the complexity and cost of network device configuration changes, device upgrades, and device replacement, and uses the old network to provide new services (such as the number one service). ), is a very concerned issue for telecom operators. Summary of the invention

 The embodiment of the invention provides a method for calling or session connection, which comprises the following steps:

 Receiving session information sent by the calling terminal;

 Obtaining network connection information supported by the calling terminal according to the session information;

 A route conforming to the network connection information is selected from one or more optional called side networks for connection.

 Correspondingly, the embodiment of the invention further discloses a network selection device, including:

 a receiving module, configured to receive session information;

 An obtaining module, configured to obtain network connection information supported by the calling terminal according to the session information received by the receiving module;

 a network selection module, configured to select, from one or more optional called side networks, a route that meets the network connection information acquired by the obtained module;

The first routing module is configured to route the session information to the destination network according to the route selected by the network selection module. Correspondingly, the embodiment of the present invention further discloses a communication network system, including: a device at a calling end, a network selecting device, and a device at a called end, where the device at the calling end is configured to receive call or session information, and Calling or session information is routed to said network selection device;

 The network selection device includes:

 a receiving module, configured to receive call or session information;

 An acquiring module, configured to obtain network connection information supported by the calling terminal according to the call or session information received by the receiving module;

 a network selection module, configured to select, from one or more optional called side networks, a route that meets the network connection information acquired by the obtained module;

 a first routing module, configured to route the call or session information to the destination network according to the route selected by the network selection module;

 The device at the called end is configured to receive call or session information sent by the first routing module, and route the call or session information to the called terminal.

 By implementing the network configuration of the device, the old network can provide new services, and the complexity and cost of network device upgrade or replacement can be reduced while ensuring the consistency of the user experience. DRAWINGS

 1 is a flow chart of a method for calling or session connection according to an embodiment of the present invention;

 2 is a schematic diagram of a network architecture for performing a call or session connection in a GSM network according to an embodiment of the present invention;

 3 is a flowchart of a method for performing a call or session connection in a GSM network according to an embodiment of the present invention; FIG. 4 is a schematic diagram of a network architecture for implementing a one-number service according to an embodiment of the present invention;

 FIG. 5 is a flowchart of a method for implementing a one-number service according to an embodiment of the present invention; FIG.

 6 is a schematic structural diagram of a communication network system according to an embodiment of the present invention;

 7 is a schematic structural diagram of a device at a calling end in a communication network system according to an embodiment of the present invention; FIG. 8 is a schematic structural diagram of a network selecting device in a communication network system according to an embodiment of the present invention; and FIG. 9 is a network selection module of the present invention; A schematic structural view of a first specific embodiment;

Figure 10 is a block diagram showing the structure of a second embodiment of the network selection module of the present invention. detailed description

 Embodiments of the present invention provide a method for calling or session connection, a network selection device, and a communication network system, which implements an embodiment of the present invention, and can provide a new service by using a legacy network. Reduce the complexity and cost of network device upgrade or replacement while ensuring consistency of user experience.

 Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

 Referring to FIG. 1, FIG. 1 is a flowchart of a method for calling or session connection according to an embodiment of the present invention, which includes the following steps:

 Step S101: The calling terminal initiates a call or a session;

 Step S102: The calling network side system receives the call or session request information of the calling terminal, and performs the calling session control and the calling service processing.

 Step S103: After the calling network side system finishes processing the calling service, the network connection information supported by the calling terminal is obtained according to the call or session request information.

 Step S104: The calling network side system selects a route conforming to the network connection information from one or more optional called side networks, and routes the call or session request to the destination network according to the selected route. ;

 Specifically, the routing of the call or session request to the destination network may be to route the call or session request to the gateway office of the called network or the network side system where the called party is located.

 Step S105: The called network side system receives the call or session request, and performs called session control and called service processing.

 Step S106: After the called network side system finishes processing the called service, the call or session request is routed to the called terminal, and the connection is completed.

 It should be noted that: at least one type of information or any combination: the terminal connection information carried by the call or session information, the preset terminal connection configuration information, and the current network information of the terminal connection.

 The terminal connection information carried in the call or session information includes at least one of the following information or any combination: a message type, a service type, a calling network type, a calling number, a calling number type, a called number, and a called number type. ;

The configuration information of the preset terminal connection includes information set by an operator or information set by a user. Or information signed by the user with the operator;

 The current network information of the terminal connection includes at least one of the following information or any combination: a call state or a session state of the user, a network state of the user subscription, and location information of the user;

 Therefore, in the step of the calling network side system selecting a route conforming to the network connection information from one or more optional called side networks, the network connection information conforming to the network connection may be a calling network that conforms to the connection of the terminal. The type, the called number, and the called number type may also be information that matches the user's connection with the operator in accordance with the terminal connection, or may be a user call or session state that is consistent with the terminal connection, and information that the user signs the contract with the operator. That is, the conditions for complying with the network connection information may be specified by the technician according to the specific circumstances at the time.

 The network includes a Public Switched Telephone Network (PSTN), a Public Land Mobile Network (PLMN), an H.323 standard network, and a Global System for Mobile Communications (GSM) network. , Code-Division Multiple Access (CDMA) network, IP Multimedia core network subsystem (IMS, IP Multimedia core network Subsystem) network, etc.;

 The network signaling protocols used for network selection include: Session Initiation Protocol (SIP), Integrated Services Digital Network User Part Protocol (ISUP, ISDN User Part), and SIP Sessions (SIP-T, SIP for Telephones) ), Bearer Independent Call Control Protocol (BICC) or Transaction Capabilities Application Part (TCAP).

 Through the above embodiment, selecting a route conforming to the network connection information from one or more optional called side networks to perform call or session connection provides more flexibility for service development and network construction.

In order to further illustrate the embodiments of the present invention, the process of making a call or session connection in the same network (e.g., GSM network) of the present invention will be described below with reference to Figs. 2 and 3. Referring to FIG. 2, FIG. 2 is a schematic diagram of a network architecture for performing a call or session connection in a GSM network according to an embodiment of the present invention, including a calling mobile phone; a called mobile phone; and a GSM calling sub-network side connected to the calling mobile phone. The originating mobile switching center (0-MSC, Originate Mobile Switching Center), the home location register (HLR, Home Location Register); the called side mobile switching center on the GSM called subnetwork side connected to the called mobile phone ( T-MSC, Terminal Mobile Switching Center), HLR; respectively connected to the 0-MSC on the GSM calling sub-network side and the T-MSC and HLR on the GSM called sub-network side Tandem Mobile Switching Center (Tandem MSC) in the tandem network. Referring to FIG. 3, FIG. 3 is a flowchart of a method for performing a call or session connection in a GSM network according to an embodiment of the present invention, including the following steps: Step S301: 0-MSC receives call or session information sent by a calling mobile phone, And controlling the calling session and processing the calling side service;

 Step S302: After completing the calling side service processing, the 0-MSC forwards the call or session to the Tandem MSC.

 Step S303: The Tandem MSC acquires network connection information supported by the calling terminal according to the call or session information.

 It should be noted that the network connection information in this example is consistent with the foregoing embodiment, and details are not described herein. The user and the operator subscribe to multiple numbers or identifiers of the called user corresponding to the GSM network, that is, the called user has Multiple numbers or logos.

 Step S304: The Tandem MSC selects a called subscriber number or identifier that matches the network connection information from the multiple networks corresponding to the number or identifier of the called subscriber, and queries the route of the selected number or identifier.

 Specifically, the condition that the network connection information is consistent with the foregoing embodiment may be the location information of the called user that meets the connection of the terminal, or may be the called user's call or session state that is consistent with the connection of the terminal. And the called number type, that is, the condition that the network connection information is met may be specified by the technician according to the specific situation at the time; the Tandem MSC queries the called user number or the identifier of the route through the mobile application part (MAP, Mobile) The Application Part ) interface queries the roaming number of the called user to complete.

 Step S305: The Tandem MSC routes the call or session information to the T-MSC according to the route of the query.

 Step S306: After receiving the call or session information, the T-MSC controls the called session and processes the called side service.

 Step S307: After the T-MSC finishes processing the called side service, the T or MSC routes the call or session information to the called mobile phone to complete the connection.

In order to further explain the embodiment of the present invention, the method for realizing the first number of the present invention will be described below with reference to FIGS. 4 and 5. Referring to FIG. 4, FIG. 4 is a schematic diagram of a network architecture for implementing a one-number service according to an embodiment of the present invention, including a called network selection device, and an operation support system/service support system (OSS/) connected to the called network selection device. BSS , Operating Support System/Business Support System ); PSTN network, IMS network, PLMN network, H.232 VoIP network, etc. connected to the called network selection device. Referring to FIG. 5, FIG. 5 is a flowchart of a method for implementing a one-number service according to an embodiment of the present invention, including the following steps:

 Step S501: The calling terminal initiates a call or a session;

 Step S502: The calling network side system receives the call or session request information of the calling terminal, and performs the calling session control and the calling service processing.

 Step S503: After the calling network side system finishes processing the calling service, routing the call or session request to the called network selection device;

 Step S504: The called network selection device acquires network connection information supported by the calling terminal according to the call or session request information.

 Step S505: The called network selection device selects a network that matches the network connection information from at least two optional networks that are subscribed by the called user number, and queries the route of the selected network. The network connection information includes the called network selection policy information and at least one of the following information or any combination: the terminal connection information carried by the call or session information, the preset terminal connection configuration information, and the current network information of the terminal connection; The terminal connection information carried in the call or the session information, the configuration information of the preset terminal connection, and the current network information of the terminal connection are the same as those in the foregoing embodiment, and are not described herein again; the conditions that meet the network connection information are as described above. The consistency of the embodiment is not described here.

 The terminal connection configuration information may be obtained from the OSS/BSS system in FIG. 4; the at least two optional networks are as shown in FIG. 4, such as a PSTN network, a PLMN network, an IMS network, and the like.

 Step S506: The called network selection device routes the call or session request to the destination network according to the route of the query;

 Step S507: The called network side system receives the call or session request, and performs called session control and called service processing.

 Step S508: After the called network side system finishes processing the called service, the call or session request is routed to the called terminal, and the connection is completed.

 It should be noted:

The called network selection policy information in the embodiment of the present invention includes: serial ringing, parallel ringing, or serial and parallel hybrid ringing, etc.; the serial ringing refers to routing a call or a session to a certain one. Choose After the called network (ie, the target network), when receiving the connection failure information returned by the called network, re-execute the called network selection, and reroute the call or session to other optional called networks. The reselection and routing functions can be repeated until the call or session is connected or suspended by the calling party or all optional routes are completed; the parallel ringing refers to routing the call or session to more than two simultaneously In the optional called network, receiving and determining, according to information such as response information and response speed returned by each target network, the network performing the call or session connection process, and suspending the connection process of other networks; the serial and parallel mixing Ringing means that the step of performing the current selection of the network may be serial ringing or parallel ringing. After the step is completed, the next step of selecting the network may still be serial ringing or parallel vibration. Bell, that is, any step of selecting a network can be either serial ringing or parallel ringing. For example, the first time it is performed is a serial ringing, which may either continue with serial ringing or may perform parallel ringing after a return failure. It should be noted that in the process of serial ringing or parallel ringing, each branch may also adopt parallel ringing or serial ringing, or serial and parallel mixed ringing;

 The information that the user subscribes to the operator in the preset terminal connection configuration information includes at least one of the following information or any combination: at least one type of network type corresponding to the user number or the user identifier, and the master corresponding to the network type Calling service information and called service information, a network corresponding to multiple numbers or identification information of the same user, network information subscribed by the user, and time information;

 Specifically, the OSS/BSS can be used to set the configuration information of the terminal connection. The OSS/BSS centers on the user's telephone number/ID, and signs various types of calling services, called services, and called network selection policies in each network. The network selection device can perform selection of the network based on the information set by the OSS/BSS. The specific information model set by the OSS/BSS system is as follows:

The above table shows the structure of the configuration information of a user number/user ID in the OSS/BSS system. The information model is: A user number/user ID can correspond to multiple network types, namely user number/user ID and network. The type ratio is 1:N, and each network type corresponds to the primary and called services of the network type, that is, the ratio of the network type to various types of primary and called services is 1:1, and the optional information in the above table includes the user's Home address, unit, age, hobbies, habits, whether special attention is required, etc. It should be noted that only one user number A/user ID A is listed in the above table, and the configuration information of other user numbers/user IDs is in the above table. The configuration information of the user number A/user ID A shown is the same. The calling service and the called service information of each network subscription are configured on various network devices and switches through OSS/BSS;

 The configuration information of the newly added called selection function is as follows:

 Called User Number Called Network Selection Policy Optional Information

 The configuration information of various networks such as PSTN network, PLMN network, H.323 network, and IMS network remains unchanged, as shown in the following table:

 User number A Calling contracted service and called contracted service Optional information

 Through the foregoing implementation of the one-number service, a network that meets the network connection information is selected from at least two optional networks that are subscribed by the called user number, so that the user can successfully answer in any network. Calling or session, without changing the intelligent network (IN), avoiding the problem of high maintenance cost of the current IN network after the TDM network is eliminated in the future, and the information model proposed by the above embodiment knows that even if there are multiple The network only uses a number/identity, and does not need to use a new number/identification, which solves the problem that the number/identity resource caused by the user needs to adopt multiple user numbers/identities in multiple networks, and saves the number/identification resource.

 Embodiments of the present invention will be further described in detail below with reference to Figs. 6, 7, and 8. Referring to FIG. 6, FIG. 6 is a schematic structural diagram of a communication network system according to an embodiment of the present invention, including a calling device 61 for receiving call or session information, and routing the call or session information to a network selection device. The network selection device 62 is configured to select a network from the various networks, and route the call or session information to the destination network through the selected network, specifically to the device 63 of the called end in FIG. 6; The called device 63 is configured to receive call or session information sent by the network selection device 62, process the called side service, and route the call or session information to the called terminal.

 Referring to FIG. 7, FIG. 7 is a schematic structural diagram of an apparatus for a calling end in a communication network system according to an embodiment of the present invention, including: a receiving processing module 611, configured to receive call or session information sent by a calling terminal, and process The calling side service; the second routing module 612 is configured to route the call or session information to the network selecting device 62.

Referring to FIG. 8, FIG. 8 is a schematic structural diagram of a network selection apparatus in a communication network system according to an embodiment of the present invention, including: a receiving module 621, configured to receive call or session information; and an obtaining module 622, configured to receive a module according to the receiving module 621 received call or session information to obtain a network connection letter supported by the calling terminal The network selection module 623 is configured to select, from one or more optional called side networks, a route that meets the network connection information acquired by the obtaining block 622. The first routing module 624 is configured to use the network selection module 623. The selected route routes the call or session information to the destination network.

 Referring to FIG. 9, FIG. 9 is a schematic diagram showing the structure of a first embodiment of the network selection module of the present invention, including:

 The first selecting unit 91 is configured to select, from the optional network corresponding to the multiple numbers or identifiers of the called user, a called subscriber number or identifier that meets the network connection information acquired by the obtaining module 622;

 The first query unit 92 is configured to query the route of the number or identifier selected by the first selection unit 91. Referring to FIG. 10, FIG. 10 is a schematic structural diagram of a second embodiment of a network selection module according to the present invention, including:

 The second selecting unit 101 selects, from the at least two optional networks signed by the called subscriber number, a network that meets the network connection information acquired by the earphone 622;

 The second query unit 102 is configured to query a route of the network selected by the second selection unit 101.

 It should be noted that the network selection device may be a switch or the like; in the deployment of the GSM network, the device at the calling end includes a 0-MSC, etc.; the network selection device includes a Tandem MSC, etc.; Including T-MSC and so on.

 In the prior art, the Telecommunication and Internet Convergence Service and the Advanced Network Protocol (TISPAN) define a Public Switched Telephone Network (PSTN) based on the IP Multimedia Core Network Subsystem (IMS). The Integrated Service Digital Network (ISDN) Emulation Subsystem, called PES, requires a large number of network equipment replacement and upgrades based on TISPAN for network transformation, which makes operators' transformation costs high. Through the foregoing embodiment of the communication network system, in the process of performing network evolution, it is only necessary to add a network selection function to an existing device of the telecommunication network, or newly introduce a network device having a called network function, and initiate a call initiated in the network or The session selects a network through a network selection device having a called network selection function, such as a PSTN network, a PLMN network, an H.323 network, and the like, and a new network (such as an IMS network), that is, supports the traditional network at the same time. And the network selection function of the new network, to gradually complete the evolution of the network, avoiding the high cost caused by the replacement and upgrade of a large number of network equipments based on TISPAN, and realizing the construction of a new network through the stacking of the single stack. Complete the upgrade or modification of the traditional network, reducing the cost of network upgrade or transformation.

It should be noted that, through the embodiment of the foregoing communication network system, the process of network evolution is performed. In the new network number and account information that the operator needs to open to the users of the traditional network, the information in the traditional network is consistent with the information in the traditional network; the calling number is the same number regardless of the traditional network or the call initiated by the new network; The service type may be the same as the service type of the traditional network, or may be different. In addition to signing the service in the traditional network, the user also needs to sign the service in the new network; the call or session initiated to the called user number through the network Choose to confirm the connection by a new network or a traditional network. Then, as the technology and services of the new network continue to grow, as the new network continues to grow and the number of users grows, the users of the traditional network will gradually decrease until disappear, thus completing the evolution process from the traditional network to the new network. .

 It should be noted that a method for calling or session connection proposed by the embodiment of the present invention may be implemented by a computer program, an instruction, or a programmable logic device, and the program may be saved to On a storage medium, such as: a disc, a disk, and so on.

 In summary, the embodiment of the present invention implements connection by selecting a route conforming to the network connection information from one or more optional called side networks, thereby providing more services for service development and network construction. Flexibility, through the network configuration of the single ticket, the old network can provide new services, such as realizing the one-number service, avoiding the problem of high maintenance cost of the current IN network after the TDM network is eliminated in the future, and solving the problem. In a plurality of networks, it is necessary to adopt a problem that the number/identity resource caused by multiple user numbers/identities is wasted, and the user only uses one user number/user identifier in multiple networks, saving numbers/identifying resources, and implementing the present invention. In a communication network system in the embodiment, during the process of network evolution, the consistency of the user experience is ensured, and the new network can be upgraded or modified by stacking a new network, thereby avoiding the TISPAN standard. Network transformation requires a large number of network equipment replacement and upgrades and high cost issues, reducing Network upgrade or modification of the complexity and costs, is conducive to the evolution of the network.

 The above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto. Therefore, the equivalent changes according to the claims of the present invention are still covered by the present invention. range.

Claims

Rights request  A method for calling or connecting a session, comprising the steps of:  Receiving session information sent by the calling terminal;  Obtaining network connection information supported by the calling terminal according to the session information;  A route conforming to the network connection information is selected from one or more optional called side networks for connection. The method of claim 1 or 2, wherein the network connection information comprises at least one of the following information or any combination: terminal connection information carried by the session information, preset terminal connection Configuration information and current network information of the terminal connection. The method for calling or session connection according to claim 1, wherein the terminal connection information carried by the session information comprises at least one of the following information or any combination: message type, service type, calling network type, The calling number, the calling number type, the called number, and the called number type; the preset terminal connection configuration information includes information set by the operator or information set by the user or information signed by the user and the operator;  The current network information connected by the terminal includes at least one of the following information or any combination: a call or session state of the user, a network status of the user subscription, and location information of the user. The method for calling or session connection according to claim 2 or 3, wherein the selecting one route from the one or more optional called side networks that conforms to the network connection information is performed. The steps include:  Selecting a called subscriber number or identifier that matches the network connection information from the plurality of selected numbers corresponding to the number or identifier of the called subscriber, and querying the route of the selected number or identifier to perform connection. The method for calling or session connection according to claim 2 or 3, wherein the selecting one route from the one or more optional called side networks that conforms to the network connection information is performed. The steps include: Selecting a network that matches the network connection information from at least two optional networks signed by the called subscriber number, and querying the route of the selected network to perform connection. The method for calling or session connection according to claim 5, wherein when the call or session connection of the one-number service is performed, the information that the user subscribes to the operator includes at least one of the following information or any Combination: at least one network type information corresponding to the user number or the user identifier, the calling service information and the called service information corresponding to the various network types, a plurality of numbers or identification information corresponding to the same user in one network, and a network subscribed by the user Information and time information. The method for calling or session connection according to claim 6, wherein when the call or session connection of the one-number service is performed, the network connection information includes called network selection policy information, and the called party Network selection policy information includes: serial ringing, parallel ringing, or serial and parallel hybrid ringing. 8. A network selection device, comprising:  a receiving module, configured to receive session information;  An obtaining module, configured to obtain network connection information supported by the calling terminal according to the session information received by the receiving module;  a network selection module, configured to select, from one or more optional called side networks, a route that meets the network connection information acquired by the obtained module;  The first routing module is configured to route the session information to the destination network according to the route selected by the network selection module. The network selection device according to claim 8, wherein the network selection module comprises:  a first selecting unit, configured to select, from an optional network corresponding to the plurality of numbers or identifiers of the called user, a called subscriber number or identifier that meets network connection information acquired by the acquiring module;  The first query unit is configured to query a route of the number or identifier selected by the first selection unit. 10. The network selection device according to claim 8, wherein the network selection module Includes:  a second selecting unit, configured to select, from the at least two optional networks that are subscribed by the called subscriber number, a network that meets the network connection information acquired by the obtained module;  The second query unit is configured to query a route of the network selected by the second selection unit. A communication network system, comprising: a calling end device, a network selecting device, and a called end device, wherein the calling end device is configured to receive session information, and route the session information to the Network selection device;  The network selection device includes:  a receiving module, configured to receive session information;  An obtaining module, configured to obtain network connection information supported by the calling terminal according to the session information received by the receiving module;  a network selection module, configured to select, from one or more optional called side networks, a route that meets the network connection information acquired by the obtained module;  a first routing module, configured to route the session information to a destination network according to a route selected by the network selection module;  The device at the called end is configured to receive session information sent by the first routing module, and route the session information to the called terminal. The communication network system according to claim 11, wherein the device at the calling end comprises:  a receiving processing module, configured to receive session information sent by the calling terminal, and process the calling side service; the second routing module is configured to: after the receiving processing module completes the calling side service processing, routing the session information to The network selection device. 13. The communication network system according to claim 12, wherein said network selection means is a switch. The communication network system according to claim 12, wherein in the GSM network, the device at the calling end comprises a calling side mobile switching center; The network selection device includes a tandem mobile switching center; and the called end device includes a called side mobile switching center.