KR100726462B1 - Intelligent integrated multi-media server - Google Patents

Abstract

According to the present invention, interworking with PSTN, wireless network, 3GPP communication network, H.323 network, SIP network, MGCP network, MEGACO network, Broadband Convergence Network (BcN) or Next Generation Network (NGN) The present invention relates to an intelligent integrated multimedia server capable of simultaneously, and more particularly, comprising a signal matching module for transmitting and receiving call signaling (signaling) messages with the one or more communication networks, and receiving various call signaling messages from the signal matching module. The present invention relates to a multimedia server that provides functions such as call signal matching required for interworking with a communication network, announcement broadcasting of a multimedia data format, recording and storage, or transcoding and mixing. The intelligent integrated multimedia server according to the present invention supports all call signaling and multimedia transmission interfaces to support various interfaces, thereby saving equipment installation space, equipment maintenance manpower, and cost.

Multimedia Server, SIP, H.323, MGCP, MEGACO, 3G-H.324M, Multimedia, Transcoding, BCN, NGN

Description

Intelligent Integrated Multimedia Server {INTELLIGENT INTEGRATED MULTI-MEDIA SERVER}

1 is a diagram illustrating an example of a structure of a multimedia server for interworking with various conventional communication networks.

2 is a diagram illustrating an example of an intelligent integrated multimedia server according to the present invention that can interoperate with various heterogeneous communication networks.

3 is a network centering on an intelligent integrated multimedia server capable of providing multimedia services by interworking with SSW / GK and AS in an H.323 / SIP communication network while providing an intelligent network service by interworking with an SCP and an exchange in a PSTN network. It is a figure which shows the interlocking structure diagram.

FIG. 4 is an intelligent integrated multimedia server capable of providing multimedia services by interworking with 3G-MSC, HLR and SCP in a 3GPP communication network and interworking with SSW / GK and AS in an H.323 / SIP communication network. It is a figure which shows the structure of network connection centering on it.

5 is a block diagram showing the internal configuration of an intelligent integrated multimedia server according to the present invention.

6 is a diagram illustrating an example of an internal operation of an intelligent integrated multimedia server according to the present invention for providing an intelligent network service in connection with a switch / MSC and SCP / HLR in a wired or wireless network.

7 is a detailed block diagram of a call signal matching unit of the intelligent integrated multimedia server according to the present invention.

8 is a detailed block diagram of the basic call controller of the intelligent integrated multimedia server according to the present invention.

9 is a detailed block diagram of a service control matching unit of the intelligent integrated multimedia server according to the present invention.

10 is a detailed block diagram of a multimedia resource controller, a multimedia resource processor, and a multimedia transmission controller of an intelligent integrated multimedia server according to the present invention.

11 is a flowchart illustrating an operation procedure of an intelligent integrated multimedia server for interworking heterogeneous networks according to the present invention.

<Explanation of symbols for the main parts of the drawings>

500: intelligent integrated multimedia server 501: call signal matching unit

502: basic call control unit 503: call database unit

504: number translation and routing control unit 505: service control matching unit

506: operation management unit 507: application processing control unit

508: multimedia resource control unit 509: multimedia resource processing unit

510: multimedia transmission control unit

The present invention relates to an intelligent integrated multimedia server that performs voice and video call processing in cooperation with one or more communication networks, and more particularly, includes a signal matching module for transmitting and receiving call signaling messages with the one or more communication networks. The present invention relates to an intelligent integrated multimedia server that provides functions such as protocol conversion for interworking with various communication networks and transcoding or transmission matching of multimedia data by receiving the call signaling message from the signal matching module.

Today, as the communication network continues to evolve, there is a growing interest in next-generation communication networks (NGNs) or broadband convergence networks that replace legacy communication networks such as PSTN. This next generation network or broadband network integrates all communication networks such as general telephone network (PSTN), asynchronous transmission (ATM) network, frame relay (FR) network, private network and wireless communication network into a packet-based common network. It is known as a voice-video-data integrated network to provide a flexible and open network solution and a variety of applications, as well as reducing deployment and operating costs. As the network evolves and the demand for the user's communication service continues to increase, various multimedia communication services that cannot be provided in the conventional legacy communication network will be provided in the next generation communication network. In the next generation communication network, a multimedia server is the most important component for providing a multimedia communication service. Such multimedia servers include wired network, wireless network, 3GPP communication network, VoIP network (H.323 network, SIP network, MGCP network, MEGACO network), BCN, NGN, SSW, GK, CA (Call Agent), MGC (Media GW Controller) Signal, multimedia stream transmission matching and multimedia source coding matching for video, audio or data (hereinafter referred to as multimedia data) for each communication network through signal matching from MSC, WCDMA-MSC (or 3G-MSC), MSC server, etc. It is a device that provides. Such a multimedia server is one of the most important devices as a component of the next generation communication network. The multimedia server performs various types of multimedia playback, recording, mixing, data management, etc., such as video or audio, and at the same time, the service codec of the terminal is not prevented due to the limitation of the audio-video codec supported by the connected terminal. A system that performs multimedia codec transcoding, etc., is a system that requires a high level of technical skill in processing and operating large traffic.

1 is a diagram illustrating an example of a structure of a multimedia server for interworking with various conventional communication networks.

Referring to FIG. 1, for example, a conventional media server should use a first media server to interwork with a PSTN / ISDN communication network and a second media server or a third media server to interoperate with a wireless network or a 3GPP communication network. In addition, a fourth media server or a fifth media server must be used to interwork with an H.323 network or a SIP network.

A conventional media server may provide an interworking function with a specific network, but may not provide an interworking function between various communication networks at the same time. That is, the conventional media server can also interoperate with various communication networks, but one media server controls one heterogeneous communication network to interwork. Therefore, the conventional media server does not support a structure capable of simultaneously interworking various communication networks and providing call control and media control functions.

However, since the existing communication networks are very diverse, there is a need for a multimedia server for the different communication networks owned by the service provider, which is expensive to provide a service. In addition, such a next-generation communication network has a serious problem that the opportunity of profit generation disappears due to problems such as unnecessary equipment installation, space securing, personnel recruitment, etc. due to the multimedia server interworking a variety of communication networks. Therefore, there is a need for an integrated and intelligent multimedia server that can interoperate with different communication networks.

The intelligent integrated multimedia server according to the present invention not only supports all call signaling and multimedia transmission interfaces in order to support various interfaces, but also does not require the installation of several different devices to provide services.

In addition, the intelligent integrated multimedia server according to the present invention is to save the installation space for the equipment construction, and to reduce the power use, equipment maintenance manpower and cost, etc. as the number of devices need to be installed is aimed at .

In order to achieve the above object and to solve the above problems of the prior art, the multimedia server according to the present invention, call signal matching unit including one or more signal matching module for transmitting and receiving call signaling messages with one or more communication networks; An originating call and terminating call control module that receives the call signaling message from the signal matching module to perform call control processing, and records a call context for each call signaling message. A basic call controller for generating and managing a processing database; A call database including a routing table for recording call information including a call setup telephone number; A number translation and routing controller for routing the incoming call or the outgoing call with reference to the call setup telephone number recorded in the routing table during the incoming call or outgoing call processing; A service control matching unit interworking with one or more communication equipments attached to the communication network and performing service control signaling processing according to the call processing; An operation management unit for performing at least one or more of a measurement and statistics function, an operator matching function, a call signal tracking function, a CDR management function, a content management function, a multimedia resource management function, and a number translation and routing data management function; And a service control application unit for receiving a service control application message from the service control matching unit to perform a service call control process and managing a session of the service call.

 A call signal matching unit including at least one signal matching module for transmitting and receiving call signaling messages with the at least one communication network, an originating call and an incoming call for receiving the call signaling message from the signal matching module and performing a call control process A basic call controller for generating and managing a call processing database that records a call context for each call signaling message, and a call database unit for recording and maintaining call related data. A number translation and routing control unit for determining where to route incoming calls through interpretation of incoming numbers during incoming or outgoing call processing, and a service control matching unit interworking with one or more communication equipments attached to the communication network; Service for processing service control signaling according to call processing At least one of a service control matching unit, a measurement and statistics function, an operator matching function, a call signal tracking function, a CDR management function, a content management function, a multimedia resource management function, and a number translation and routing data management function. An operation management unit that performs one or more functions, and an application processing control unit that provides an independent service application processing function without interworking with a specific communication device.

Hereinafter, with reference to the accompanying drawings will be described in detail the intelligent integrated multimedia server according to the present invention.

2 is a diagram illustrating an example of an intelligent integrated multimedia server according to the present invention that can interoperate with various communication networks.

Intelligent integrated multimedia server 200 according to the present invention is a soft-switch (SSW), gatekeeper (GK), call agent (Call Agent), such as wired network, wireless network, 3G-wireless network, VoIP network : Video / audio or data (hereinafter referred to as multimedia data) through call signal matching from CA, Media Gateway Controller (MGC), Mobile Switching Center (MSC), WCDMA-MSC (or 3G-MSC), MSC server, etc. It is possible to provide stream transmission matching of signals and multimedia data and source coding (encoding and decoding) matching of multimedia data suitable for this communication network.

2, in order to interwork the PSTN / ISDN communication network 201 and the 3GPP communication network 202, the intelligent integrated multimedia server 200 according to the present invention is R1, R2, PRI, SS7 for call signal matching with wired network A call path may be formed by matching call signals such as ISUP, and may receive multimedia data from the PSTN / ISDN communication network 201 or transmit data to the communication network through T1 (T1, E1). At the same time, to match the call signal with the 3GPP communication network 202 to match the call signal such as SS7 3G-ISUP to form a call path, and receives the multimedia data from the 3GPP communication network 202 through T1 (T1, E1) or Data can be transmitted to the network side. That is, the multimedia server 200 according to the present invention converts predetermined multimedia data and call signaling received from a plurality of communication networks according to the characteristics of each heterogeneous communication network, signaling protocol conversion, multimedia data transmission matching, or multimedia stream source coding matching, etc. Through it, it is possible to process and transmit to multiple communication networks at the same time.

3 is a network centering on an intelligent integrated multimedia server capable of providing multimedia services by interworking with SSW / GK and AS in an H.323 / SIP communication network while providing an intelligent network service by interworking with an SCP and an exchange in a PSTN network. It is a figure which shows the interlocking structure diagram.

Referring to FIG. 3, an intelligent integrated multimedia server 300 for interworking with a PSTN communication network 301 first processes R1, R2, PRI, and SS7 ISUP signaling to match a call signal with an exchange and transmits multimedia data to E1. Send and receive via T1. In addition, SS7-based INAP application signaling is provided as an interworking protocol with SCP (Service Control Point) to provide intelligent network service. For the basic call control as described above, the intelligent integrated multimedia server 300 performs various types of call signal matching, and receives a service control application message from the SCP to provide a service, thereby providing voice announcement, voice recognition, voice synthesis, Provides service users with intelligent multimedia resources such as audio / video recording and audio / video mixing.

In addition, the intelligent integrated multimedia server 300 for interworking with the H.323 / SIP communication network 302 processes H.323, SIP, MGCP, and MEGACO signaling to match call signals with SSW / GK and provides multimedia data. Send and receive via IP or Ethernet based IP network. In addition, to provide multimedia services, H.323 and SIP application signaling is provided as an interworking protocol with AS (application server, application server). As described above, the intelligent integrated multimedia server 300 performs various types of call signal matching, and receives a service control application message from an AS to provide a service, and provides multimedia announcement broadcasting, voice recognition, voice synthesis, It provides intelligent multimedia resources such as multimedia recording and multimedia mixing to service users.

4 is an intelligent integrated multimedia server capable of providing multimedia services by interworking with 3G-MSC, HLR, and SCP in a 3G wireless network while simultaneously interoperating with SSW / GK and AS in an H.323 / SIP network. 2 is a diagram illustrating a network interworking configuration centering on the center.

Referring to FIG. 4, the intelligent integrated multimedia server 400 for interworking with 3GPP communication network processes SS7 ISUP signaling for call signal matching with 3G-MSC switch and establishes a call path through E1 and T1. It matches with H.324M signaling and performs functions such as terminal capability and master-slave determination between wireless terminal and multimedia server to form a call path and transmit and receive multimedia data through E1 and T1. In addition, SS7-based CAP or WIN + application signaling is provided as an interworking protocol with SCP (Service Control Point) to provide intelligent network service. For the basic call control as described above, the intelligent integrated multimedia server performs various call signal matching such as ISUP and H.324M, and receives service control application messages such as CAP and WIN + from SCP to provide services. It provides intelligent multimedia resources such as voice recognition, voice synthesis, multimedia recording, and multimedia mixing to service users.

In addition, the intelligent integrated multimedia server 400 for interworking with the H.323 / SIP communication network 402 processes H.323, SIP, MGCP, and MEGACO signaling to match call signals with the SSW / GK and provides multimedia data. Send and receive via IP over Ethernet or ATM. In addition, to provide multimedia services, H.323 and SIP application signaling is provided as an interworking protocol with AS (application server, application server). For the basic call control as described above, the intelligent integrated multimedia server 400 performs various types of call signal matching, and receives a service control application message from the AS to provide a service, thereby providing multimedia announcement broadcasting, voice recognition, voice synthesis, It provides the service users with intelligent multimedia resources such as multimedia recording and multimedia mixing.

5 is a block diagram showing the internal configuration of an intelligent integrated multimedia server according to the present invention.

Referring to FIG. 5, the intelligent integrated multimedia server 500 according to the present invention includes a call signal matching unit 501 (CSIP), a basic call control unit 502, BCCP, a call database unit 503 (CDBP), number translation and routing. Control unit 504 (NRCP), service control matching unit 505 (SCIP), operation management unit 506 (OAMP), and application processing control unit 507 (APCP).

The call signal matching unit 501 (CSIP) provides a call signal matching function necessary for interworking with heterogeneous communication networks. To this end, the call signal matching unit 501 (CSIP) includes one or more signal matching modules for transmitting and receiving call signaling messages with the one or more communication networks, and in order to perform such a call signal matching function, the call signal matching unit 501, CSIP) includes H.323 signal matching module, SIP signal matching module, MGCP signal matching module, MEGACO / H.248 signal matching module, R2 signal matching module, ISDN PRI signal matching module, SS7 ISUP signal matching module, SIGTRAN signal matching module Or one or more signal matching modules of the 3G-ISUP signal matching module.

The communication network may be used as a concept including one or more of a legacy network, an H.323 communication network, a SIP communication network, an ATM communication network, an SS7 communication network, a PSTN communication network, an internet communication network, a mobile communication network, a 3GPP communication network, an MGCP communication network, and a Megaco communication network. .

The basic call controller 502 (BCCP) receives the call signaling message from the signal matching module to perform call control processing such as H.323, SIP, R1, R2, PRI, ISUP, MGCP, and MEGACO. A call processing module including a call and terminating call control module is created and managed to record a call context for each call signaling message.

The number translation and routing control unit 504 (NRCP) provides a function of determining where to route the incoming call through interpretation of the incoming number, that is, number translation, during incoming or outgoing call processing.

The service control matching unit 505 (SCIP) is an intelligent integrated multimedia server 500 for querying the HLR where the mobile terminal of the wireless network is located, or for querying the SCP when service control from the SCP is required by a specific service identification number. Service control matching function, that is, service control application message interface such as H.323, SIP, WIN +, MAP, CAP, INAP, ccXML, vXML, AuPKG (Advanced Audio Package).

The application processing control unit 507 (APCP) receives a predetermined service control application message from the service control matching unit 505 (SCIP), performs a service call control process, and provides a service call session management function.

The multimedia resource controller 508 (MRCP) receives a predetermined control message from the basic call controller 502 (BCCP) to control the multimedia resource processor 509, MRPP, and provides a function of searching a database of multimedia file information if necessary. do. In addition, if necessary, the multimedia transmission control unit 510 (MTCP) requests a resource allocation / release for transmission matching to control the multimedia traffic transmission path.

The multimedia resource processing unit 509 (MRPP) receives a predetermined control message from the multimedia resource control unit 502 (BCCP) to update routing / switching table information, to allocate / release a switching resource, and to allocate / process multimedia processing resources if necessary. It provides multimedia processing resources such as release function, multimedia playback, multimedia recording, multimedia transcoding, multimedia codec, and multimedia mixing.

The multimedia transmission control unit 510 (MTCP) receives a predetermined control message from the multimedia resource control unit 502 (BCCP) and provides a function of allocating / releasing a resource for transmission matching. The multimedia resource processing unit 509 (MRPP) to the transmission format such as RTP, PCM, H.324M, etc. through physical interfaces such as E1, T1, Ethernet, ATM, or the like, and receives the multimedia traffic from the multimedia resource processing unit 509, MRPP. It provides the function to transmit according to the format.

The operation management unit (506, OAMP) provides a variety of functions to provide convenience, ease of operation and maintenance of the system, including the measurement and statistics functions. Operator matching function. Call signal tracking, CDR management, content management, multimedia resource management. Number translation and routing data management.

The measurement and statistics function provides the function to output or save the traffic information per second, per minute, hourly and daily in real time or non real time.

Operator matching function provides GUI function and CLI (Command Line Interface, Command Processing Interface) for system operator to operate and maintain the system efficiently and smoothly. When selecting a function (mouse click, menu selection, etc.), the command input is analyzed and processed, and the processing result is output to the operator in real time or non-real time.

Call tracking is a feature that enables the tracking of all call signaling, that is, signaling messages such as SIP, H.323, MGCP, MEGACO, R2, ISUP, etc. All call signaling message information about whether or not to be processed can be displayed.

The CDR management function is a function of recording a call log based on call context data generated by the basic call controller 502 (BCCP), and is used to extract billing information and call statistics information later.

The content management function provides a function of managing a voice or video message to be provided by the intelligent integrated multimedia server 500, that is, adding, deleting, or changing content.

The multimedia resource management function provides a configuration management function for the interface resources (eg, E1, T1, ATM, Ethernet, etc.) for physical transmission that must be provided by the intelligent integrated multimedia server 500. It also provides configuration management for eavesdropping, eavesdropping and recording resources.

The number translation and routing data management function provides various functions for system operator to add, delete and change data of routing and number translation table for number translation.

FIG. 6 is a diagram illustrating an example of an internal operation of an intelligent integrated multimedia server according to the present invention for providing an intelligent network service by interworking with a switch / MSC and SCP / HLR in a wired or wireless network.

6, the dotted line 601 indicates a call signaling path between the wired / wireless network terminal 603 and the intelligent integrated multimedia server 600 according to the present invention, and the solid line 602 indicates the wired / wireless network terminal 603. And a transmission path of the multimedia traffic of the intelligent integrated multimedia server 600. When the wired / wireless network terminal 603 attempts to transmit, the wired / wireless network transmits an SS7 ISUP message (call request signaling message), and the call signal matching unit of the intelligent integrated multimedia server 600 receiving the wired / wireless network receives the SS7 ISUP message (call request). Signaling message) is decoded according to ISUP-related ITU-T standard and delivers call request control message to originating basic call controller. Receiving a predetermined call request control message, the originating basic call controller records the call related information in the memory DB of the call database unit, transfers the predetermined number translation request message to the number translation and routing controller, and allocates / resources multimedia resources to the multimedia resource controller. By transmitting the occupancy request, the multimedia resource processing unit and the multimedia transmission control unit perform multimedia resource occupation and multimedia transmission channel occupation. After receiving the predetermined number translation request message, the number translation and routing controller transfers the call request control message to the IVR terminating basic call controller for call routing. Upon receiving the call request control message, the IVR terminating basic call controller records the relevant call information, that is, the called number, etc. in the DB, performs the multimedia resource control processing, and then performs the response in the reverse direction to successfully complete the call signaling. A communication path between the wired / wireless network terminal 603 and the intelligent integrated multimedia server 600 is opened.

7 is a detailed block diagram of a call signal matching unit of the intelligent integrated multimedia server according to the present invention.

As shown in FIG. 7, the call signal matching unit 700 includes an H.323 signal matching module, a SIP signal matching module, a MGCP signal matching module, a MEGACO signal matching module, an R2 signal matching module, a PRI signal matching module, and an ISUP signal matching. Matching modules, such as a module, an SS7 matching module, a SIGTRAN signal matching module, and a 3G-ISUP signal matching module.

The H.323 signal matching module receives an H.323 protocol message received through TCP / IP from an H.323 network device such as SSW, GK, GW, etc. to interoperate with an H.323 communication network such as SSW, GK, GW. It provides the function to decode according to ITU-T H.323 standard and the function to encode H.323 message according to ITU-T H.323 standard and transmit it to H.323 communication network devices such as SSW, GK, GW, etc. do. In addition, the H.323 signal matching module performs call connection management and call session control functions for call signaling processing with H.323 communication networks such as GK, SSW, and GW.

The SIP signal matching module decodes SIP protocol messages received through TCP / IP or UDP / IP from SIP network devices such as SSW and GW according to the IETF SIP standard to interoperate with SIP communication networks such as SSW and GW. The present invention provides a function of encoding a SIP message according to the IETF SIP standard and transmitting the SIP message to a SIP communication network device such as the SSW and GW. In addition, the SIP signal matching module performs call connection management and call session control functions for call signaling processing with the SIP communication network such as the SSW and GW.

The MGCP signal matching module converts MGCP messages received through TCP / IP or UDP / IP from the MGCP network devices such as SSW, MGC, CA to the IETF MGCP standard in order to interoperate with MGCP communication networks such as SSW, MGC, CA. It provides a function to decode according to, and provides a function to encode the MGCP message according to the IETF MGCP standard and to send to the MGCP communication network devices such as SSW, MGC, CA. In addition, the MGCP signal matching module performs call connection management and call session control functions for call signaling processing with MGCP communication networks such as SSW, MGC, and CA.

The MEGACO signal matching module uses the IETF MEGACO and ITU to transmit the MEGACO message received through TCP / IP or UDP / IP from the MEGACO network device such as SSW, MGC, CA to interoperate with the MEGACO network such as SSW, MGC, CA. -T provides the function to decode according to H.248 standard, and provides the function to encode the MEGACO message according to IETF MEGACO and ITU-T H.248 standard and transmit to MEGACO network devices such as SSW, MGC, CA, etc. . In addition, the MEGACO signal matching module performs call connection management and call session control for call signaling processing with MEGACO communication networks such as SSW, MGC, and CA.

The R2 signal matching module provides a function of decoding the R2 signaling message received through the E1 or T1 link from the exchange according to the ITU-T R2 standard to interoperate with an existing PSTN exchange, and the R2 signaling message to the ITU-T R2. It provides the function of encoding according to the standard and transmitting it to the exchange side. In addition, the R2 signal matching module performs call connection management and call session control functions for call signaling processing with the PSTN exchange.

The PRI signal matching module provides a function of decoding the ISDN PRI signaling message received through the E1 or T1 link from the exchange according to the ITU-T PRI standard in order to interoperate with an existing PSTN or ISDN exchange. -T Provides the function of encoding according to PRI standard and transmitting to exchange. In addition, the PRI signal matching module performs call connection management and call session control for call signaling with the exchange.

The ISUP signal matching module provides a function of decoding an ISUP signaling message received through an E1 or T1 link from an SS7 signal network according to the ITU-T ISUP standard in order to interoperate with an existing PSTN or ISDN switching network. It encodes according to the ITU-T ISUP standard and provides a function of transmitting to the SS7 signal network side. In addition, the ISUP signal matching module performs call connection management and call session control for call signaling with the SS7 signal network.

The SS7 matching module provides a signaling matching function for call and service control of PSTN, ISDN, mobile network, 3G mobile network, and the like, and in particular, a base protocol interface for transmitting and receiving ISUP signaling messages for call control, that is, MTP1, MTP2, It provides protocol function such as MTP3 and matching with SS7 signal network.

The SIGTRAN signal matching module provides a function of decoding SIGTRAN signaling messages received from the SG through TCP / IP or UDP / IP or SCTP / IP according to the IETF SIGTRAN standard for interworking with a signaling gateway (SG). Provides a function of encoding a call control signaling message according to the IETF SIGTRAN standard and transmitting it to the SG side. In addition, the SIGTRAN signal matching module performs transaction connection management and transaction control functions for call signaling processing with the SG.

The 3G-ISUP signal matching module provides a function of decoding an ISUP signaling message received through an E1 or T1 link from an SS7 signal network according to a 3GPP ISUP standard to interoperate with a 3G mobile network, and decodes an ISUP signaling message according to the 3GPP ISUP standard. It encodes according to the standard and provides the function to transmit to SS7 signal network. In addition, the 3G-ISUP signal matching module performs call connection management and call session control for call signaling with the SS7 signal network.

8 is a detailed block diagram of the basic call controller of the intelligent integrated multimedia server according to the present invention.

As shown in FIG. 8, the basic call control unit 800 includes a terminating call control module and an originating call control module, and the application processing control unit and the call signal matching unit interwork with each other through TCP / IP. do. The basic call controller 800 receives the signaling message received from the signal matching module of the call signal matching unit and provides a call control processing function of H.323, SIP, R2, PRI, ISUP, MGCP, MEGACO, and the like. The outgoing call control module is a module that handles incoming calls from specific call processing devices and provides incoming basic call session connection control and management functions.The incoming call control module is an originator of a service control device or a media server. Alternatively, the outgoing call is generated when a specific outgoing call is made to a specific call processing device by a routing mechanism. The outgoing basic call session connection control and management function is provided.

In addition, the incoming call control module and the outgoing call control module receive a call signaling message received from the H.323, SIP, R2, PRI, ISUP, 3G-ISUP, MGCP, MEGACO signal matching module of the call signal matching unit. It provides call control processing functions such as .323, SIP, R2, PRI, ISUP, MGCP, MEGACO, and IVR. That is, the incoming call control module and the outgoing call control module provide an incoming basic call session connection control and management function as a module that processes incoming calls from other call processing devices.

In Fig. 5, call database 503 (CDBP) provides a function of recording and managing predetermined call information, that is, information such as call number, called number, call signaling type, call start time, call end time, call control status, and the like. do.

The number translation and routing control unit 504 (NRCP) performs number translation of the call according to the call information recorded in the call database 503 (CDBP), and performs call routing according to the number translation result to process incoming call and outgoing call. Perform the process. In addition, the multimedia transmission path is controlled so that the multimedia data is transmitted by allocating a physical multimedia processing resource for the transmission path of the multimedia data so that the multimedia data can be transmitted to the call destination terminal during the incoming call and the outgoing call processing.

Typical multimedia servers include routing functions. Accordingly, the call database 503 (CDBP) maintains a routing table in which predetermined call information is recorded. The number translation and routing control unit 504 (NRCP) may designate a transmission path of the multimedia data according to the call information. An example of the call information is a call setup telephone number, and the number translation and routing control unit 504 (NRCP) translates the call setup telephone number and translates the number when the call setup telephone number is a telephone number of a node connected to an internal network. And the routing controller 504 (NRCP) not to transmit the multimedia data to an external network. In addition, when the call setup phone number is not a phone number of a node connected to an internal network, the number translation and routing control unit 504 (NRCP) may convert the multimedia data according to the call information into a specific ISP, router, gateway, bridge, or the like. To transmit to the network equipment.

9 is a detailed block diagram of a service control matching unit of the intelligent integrated multimedia server according to the present invention.

The service control matching unit 900 is a CAP control linkage module, MAP control linkage module, WIN / WIN + control linkage module, INAP control linkage module, SIP control linkage module, vXML control linkage module, PARLAY control linkage module, JAIN control linkage module, At least one module of the AU control interworking module, ccXML control interworking module, or SS7 TCAP / MTP1, 2, 3.

In addition, the service control matching unit 900 further includes a SS7 MTP1 / 2/3 and a TCAP processing module, which is a base protocol for SS7 network interworking, and includes a vXML, ccXML, MGCP or MEGACO AU Package for smooth service provision, and It may further include a processing module such as a tone control package.

The service control matching unit 900 provides a service control interworking function with a predetermined communication device (eg, SCP, HLR, AS, etc.) that performs service logic to provide a multimedia service such as various voices or videos in a predetermined communication network. do. The intelligent integrated multimedia server receives the service control message of the service control device and provides functions such as transcoding, DTMF detection / collection / generation, ASR, TTS, Dispatcher, mixing, eavesdropping, recording, and transmission according to the message content. do.

For example, when receiving a recording request during a call from the service control matching unit 900, the intelligent integrated multimedia server according to the present invention provides a function of recording the multimedia data of the user in the call to the storage device in the format specified by the service control device do.

As another example, when the interception request is received from the service control matching unit 900, the intelligent integrated multimedia server according to the present invention transmits the multimedia data of the user who is on the call to a specific interception device, or the service control matching unit 900 Provides the ability to write to a storage device in a specified format.

The WIN matching module provides a function of decoding the WIN / WIN + signaling message received from the SCP through the SS7 network in accordance with domestic / international standards to interoperate with the SCP (Service Control Unit), and the WIN / WIN + signaling message in Korea. Provides the function of encoding according to international standard and transmitting to SCP. In addition, the WIN matching module performs a service call connection session management and control function for processing service control signaling with SCP.

The CAP matching module decodes the CAP signaling message received from the SCP / HLR through the SS7 network according to the national / international standard in order to interoperate with the SCP / HLR (service control device), and decodes the CAP signaling message in the domestic / international standard. Encode according to the standard and send to SCP / HLR. In addition, the CAP matching module performs a service call connection session management and control function for processing service control signaling with SCP / HLR.

The MAP matching module provides a function of decoding the MAP signaling message received from the SCP / HLR through the SS7 network according to the national / international standard in order to interoperate with the SCP / HLR (service control device), and the MAP signaling message. Encode according to national / international standards and send to SCP / HLR. In addition, the MAP matching module performs a service call connection session management and control function for processing service control signaling with SCP / HLR.

The INAP matching module provides a function of decoding an INAP signaling message received from the SCP through the SS7 network according to a domestic / international standard for interworking with an SCP (service control device), and decodes the INAP signaling message in a domestic / international standard. Provides a function of encoding according to the standard and transmitting to the SCP side. In addition, the INAP matching module performs service call connection session management and control for service control signaling with SCP.

The SIP matching module provides a function of decoding a SIP signaling message received from the AS via TCP / IP or UDP / IP according to a domestic / international standard for interworking with an application server (AS), and the SIP signaling message. It provides the function to encode the data according to national / international standard and transmit it to AS side. In addition, the SIP matching module performs a service call connection session management and control function for processing service control signaling with an AS.

The matching modules such as PARLAY, vXML, ccXML, JAIN, AU, etc., service service signaling messages received through TCP / IP or UDP / IP from these devices to interoperate with AS (Application Server), Parlay GW, VXML Server and the like. It provides a function of decoding according to national / international standards, and provides a function of encoding service control signaling messages according to national / international standards and transmitting them to these devices. In addition, the matching module such as Parlay, vXML, ccXML, JAIN, AU, etc. performs a service call connection session management and control function for service control signaling processing.

The communication device or service control device may include at least one device from an application server (AS), a home location register (HLR), or a service control point (SCP).

The application processing control unit (APCP) provides a unique service application processing function without interworking with other communication equipment (eg, AS, SSW, SCP, HLR, etc.). This allows the intelligent integrated multimedia server of the present invention to independently provide an additional service processing function without the intervention of other communication equipment to provide a specific service processing function. For example, a service control function of providing a billing processing service for a call received with a specific identification number, or providing a routing service through voice recognition by receiving a voice input from a user.

In addition, the application processing control unit APCP receives a predetermined control application message from the service control matching unit 900 side and provides a service request function requested by the service control apparatus side to provide various communication network services.

10 is a detailed block diagram of a multimedia resource controller, a multimedia resource processor, and a multimedia transmission controller of an intelligent integrated multimedia server according to the present invention.

As shown in FIG. 10, the intelligent integrated multimedia server according to an embodiment of the present invention is a multimedia resource controller 1010 (MRCP), a multimedia resource processor 1020 (MRPP), and a multimedia transmission controller for processing and managing multimedia data. (1030, MTCP) is further included.

The multimedia resource control unit 1010 (MRCP) manages operations such as storage, input / output, or processing of multimedia data recorded in a predetermined recording unit. In addition, the multimedia resource controller 1010 (MRCP) receives a predetermined control message from the basic call controller and provides a function for providing multimedia processing resources required by the multimedia transmission controller 1030 (MTCP) according to the control message. to provide.

In addition, the multimedia resource control unit 1010 (MRCP), in order to efficiently manage and control resources, the resource management system divides the minimum unit for processing voice or video into channels, and divides the bundle of channels into slots. It provides a function of channel allocation or hunting (hunting) and switching (switching) for each slot group. To this end, the multimedia resource controller 1010 (MRCP) includes a multimedia resource control module and a multimedia resource management module. The multimedia resource control module provides resource control functions in terms of integrated management of all multimedia resource management modules. The multimedia resource management module provides individual resource control functions for each resource and interfaces with the respective multimedia processing resources. Provide the function.

The multimedia resource processor 1020 (MRPP) provides a function of source coding (encoding) or source decoding (decoding) an audio / video or the like. In addition, the multimedia resource processing unit 309 (MRPP) is a transcoding (eg, conversion between G723.1 codec and AMR codec) processing module, mixing processing module, interception processing module, playback / recording processing module, routing processing module, forwarding processing module Or one or more processing modules among the switching processing modules to perform one or more functional processing operations of transcoding, mixing, listening, playing / recording, routing, forwarding, or switching multimedia data.

The multimedia transmission control unit 1030 (MTCP) includes one or more transmission matching modules, and transmits and receives multimedia data with the one or more communication networks through the one or more transmission matching modules. The multimedia transmission control unit 1030 (MTCP) provides a hardware and software processing function module for transmitting and receiving source encoded real multimedia data traffic.

The transmission matching module included in the multimedia transmission control unit 1030 (MTCP) includes 3G-H.324M transmission matching module based on E1, T1, ATM-AAL2, E1 transmission matching module, T1 transmission matching module, and RTP / based on Ethernet / ATM. There is a transmission matching module such as a UDP / IP transmission matching module.

The processing function module includes RTP / RTCP over UDP / IP based on ATM or Ethernet, TCP / IP transmission matching module, H.324M transmission matching module based on 3GPP circuit-multimedia, and H.324M transmission matching module based on 3GPP ATM. Or one or more transmission matching modules from among transmission matching modules such as an E1 / T1 or STM-1 based transmission matching module.

The multimedia resource processing unit 1020 (MRPP) according to an embodiment of the present invention provides a routing and switching function between the multimedia data traffic using a quadruple 4X4 switch. The input / output of quadruple 4X4 switch consists of multimedia processing module (listening, mixing, recording module, etc.) except for the above-mentioned switching processing module, and the transmission matching module, and the routing and forwarding of multimedia traffic between each module, Provide switching function. Each 4X4 switch also features an interchannel loopback function, a loopback function at the transmit and receive end within the channel, a match (transform) function for different stream formats or different source coding (encoding) formats between transmission matching modules, and interception of calls. It provides matching and switching between functional modules to provide functionality, mixing during the call, and more.

For example, when multimedia traffic is input to the 3G-H.324M transmission matching module, when the multimedia resource processing unit 1020 or MRPP receives a predetermined resource control message from the multimedia resource control unit 1010 or MRCP, a multimedia resource is required. The routing and forwarding tables of the switching module are updated to enable routing and forwarding to the resource module to allocate and process the incoming traffic. That is, the input traffic may be routed, forwarded, or switched to the corresponding resource processing module by the updated routing and forwarding table information.

Although the multimedia resource processing unit of the intelligent integrated multimedia server according to the present invention is shown to include a quadruple 4X4 switch, those skilled in the art will recognize that there are various multiple combinations of switching circuit configurations as well as quadruple 4X4. It is not limited.

11 is a flowchart illustrating an operation procedure of an intelligent integrated multimedia server for interworking heterogeneous networks according to the present invention.

Referring to FIG. 11, in step 1101, the intelligent integrated multimedia server waits to receive call control signaling. Next, in step 1102, a call connection request is received from a terminal of a specific communication network, and an incoming call type according to the call connection request is checked (step 1103).

As a result of checking in step 1103, if the incoming call type is an incoming call originating from an H.323 communication network or a SIP communication network, the intelligent integrated multimedia server according to the present invention may handle H.323 / SIP incoming call processing and incoming channel occupancy. Perform (step 1104). If the incoming call type is an incoming call originating from an R2 communication network or a PRI communication network, the intelligent integrated multimedia server performs R2 or PRI incoming call processing and performs incoming channel occupancy. (Step 1105). Next, as a result of confirming in step 1103, if the incoming call type is an incoming call originating from an ISUP network, the intelligent integrated multimedia server occupies an ISUP incoming call processing and incoming channel (step 1106). In addition, the intelligent integrated multimedia server performs 3G H.324M incoming call processing and incoming channel occupancy when the incoming call is an incoming call coming from the 3G H.324M communication network (step 1107).

In step 1104 to step 1107, the intelligent integrated multimedia server that performs the incoming call processing and the incoming channel occupancy according to the incoming call type performs number translation and routing (step 1108). The number translation is to perform the interpretation of the incoming number during incoming or outgoing call processing.

Next, in step 1109, the intelligent integrated multimedia server that has performed number translation and routing records the relevant call information, that is, the called number, etc. in the call processing database through the incoming call control unit, and then performs multimedia resource control processing and then reverses the reverse call. When the corresponding call signaling is successfully completed, the call path is established with the terminal of the specific communication network. In step 1110, the intelligent integrated multimedia server maintains a standby state for receiving service control signaling, thereby receiving the service control signaling from a predetermined signal matching module (step 1111).

The intelligent integrated multimedia server that has received the service control signaling performs functions such as call signal matching, announcement broadcasting, recording and storing of multimedia data format, transcoding, and mixing necessary for interworking with various communication networks (step 1112). ).

The intelligent integrated multimedia server performing the function, in step 1113, maintains a standby state for receiving service control or call control signaling.

While specific embodiments of the present invention have been described so far, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the claims below, but also by the equivalents of the claims.

According to the intelligent integrated multimedia server according to the present invention, not only all call signaling and multimedia transmission interfaces are supported in order to support various interfaces, but also it is not necessary to install several different devices to provide services.

In addition, according to the intelligent integrated multimedia server according to the present invention, the installation space for building equipment is saved, and as the number of devices required for installation is reduced, power use, equipment maintenance manpower, and cost can be reduced.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications thereof will belong to the scope of the present invention.

Claims (11)

A multimedia server for performing call processing in association with at least one communication network, the multimedia server comprising: a call signal matching unit including at least one signal matching module for transmitting and receiving a call signaling message with the at least one communication network; An originating call and terminating call control module that receives the call signaling message from the signal matching module to perform call control processing, and records a call context for each call signaling message. A basic call controller for generating and managing a processing database; A call database including a routing table for recording call information including a call setup telephone number; A number translation and routing controller for routing the incoming call or the outgoing call with reference to the call setup telephone number recorded in the routing table during the incoming call or outgoing call processing; A service control matching unit interworking with one or more communication equipments attached to the communication network and performing service control signaling processing according to the call processing; An operation management unit for performing at least one or more of a measurement and statistics function, an operator matching function, a call signal tracking function, a CDR management function, a content management function, a multimedia resource management function, and a number translation and routing data management function; And A service control application unit which receives a service control application message from the service control matching unit to perform a service call control process and manages a session of the service call. Intelligent integrated multimedia server comprising a. The method of claim 1, The communication network is an intelligent integrated multimedia server, characterized in that at least one of the legacy network, H.323 communication network, SIP communication network, ATM communication network, SS7 signaling network, PSTN communication network, Internet communication network, mobile communication network, 3GPP communication network, MGCP network, or Megaco communication network. . The method of claim 1, The call signal matching module is an H.323 signal matching module, a SIP signal matching module, an R1 / R2 / PRI signal matching module, an ISUP signal matching module, a SIGTRAN signal matching module, an SS7 signal matching module, and a 3G-H.324M signal matching module. An intelligent integrated multimedia server comprising any one or more of a signal matching module, MGCP signal matching module, MEGACO / H.248 signal matching module. The method of claim 1, The service control matching unit CAP control linkage module, MAP control linkage module, WIN / WIN + control linkage module, INAP control linkage module, SIP control linkage module, vXML control linkage module, PARLAY control linkage module, JAIN control linkage module, AU control linkage An intelligent integrated multimedia server comprising a module, a ccXML control linkage module, or a control linkage module of any one or more of SS7 TCAP / MTP1,2,3. The method of claim 1, The communication device interworking with the service control matching unit is an intelligent integrated multimedia server, characterized in that it comprises at least one device from an application server (AS), a home location register (HLR), or a service control point (SCP). The method of claim 1, The outgoing call control module of the basic call controller processes the incoming call when an incoming call is received from the signal matching module, and the incoming call control module is an outgoing call transmitted through the signal matching module. Intelligent outgoing multimedia server, characterized in that for processing the outgoing call when the (Outgoing Call) is received. The method of claim 1, Performed by the operation management unit, (1) the measurement and statistics function is a function of outputting or storing traffic information per predetermined period in real time or non-real time; (2) The operator matching function is to provide an administrator with a GUI or CLI (Command Line Interface) environment. (3) the call signal tracking function is to provide a trace for the call signaling message, (4) the CDR management function is to record call processing log data based on Call Context data generated by the basic call controller; (5) the content management function is a management function for multimedia data; (6) the multimedia resource management function is a configuration management function for an interface resource for physical transmission and a configuration management function for a transcoding resource, a mixing / listening / recording resource of the multimedia data, (7) The number translation and routing data management function is for the administrator to update the routing table for translation of the call setup telephone number. Intelligent integrated multimedia server, characterized in that. The method of claim 1, A multimedia resource control unit which manages multimedia data recorded in predetermined recording means, receives a predetermined control message from the basic call control unit, and allocates a resource necessary for processing the multimedia data; A multimedia resource processor which performs source encoding and decoding on the multimedia data; And A multimedia transmission control unit including one or more transmission matching modules corresponding to one or more communication networks, and transmitting and receiving multimedia data with the one or more communication networks through the one or more transmission matching modules. Intelligent integrated multimedia server, characterized in that it further comprises. The method of claim 8, The multimedia transmission control unit may include one or more transmission matching modules of an ATM AAL2 or E1 / T1 based 3G-H.324M transmission matching module, an E1 / T1 based PCM transmission matching module, and an Ethernet / ATM based RTP / UDP / IP transmission matching module. Intelligent integrated multimedia server comprising a module. The method of claim 8, The multimedia resource processing unit further comprises a quadruple 4X4 switch for performing routing, forwarding, and switching of the multimedia data. The method of claim 8, The multimedia resource processing unit may include any one or more processing modules of a transcoding processing module, a mixing processing module, an audio processing module, a play / record processing module, and a switching processing module.

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