WO2005109777A1 - Systeme evolutif de reseau de telephone public commute et procede de traitement de services de ce dernier - Google Patents

Systeme evolutif de reseau de telephone public commute et procede de traitement de services de ce dernier Download PDF

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Publication number
WO2005109777A1
WO2005109777A1 PCT/CN2005/000633 CN2005000633W WO2005109777A1 WO 2005109777 A1 WO2005109777 A1 WO 2005109777A1 CN 2005000633 W CN2005000633 W CN 2005000633W WO 2005109777 A1 WO2005109777 A1 WO 2005109777A1
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WIPO (PCT)
Prior art keywords
service
call
layer
network
control
Prior art date
Application number
PCT/CN2005/000633
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English (en)
Chinese (zh)
Inventor
Wenxin Xia
Baofeng Zhang
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to BRPI0510949-3A priority Critical patent/BRPI0510949A/pt
Publication of WO2005109777A1 publication Critical patent/WO2005109777A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/41—Billing record details, i.e. parameters, identifiers, structure of call data record [CDR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/01—Details of billing arrangements
    • H04M2215/0164—Billing record, e.g. Call Data Record [CDR], Toll Ticket[TT], Automatic Message Accounting [AMA], Call Line Identifier [CLI], details, i.e. parameters, identifiers, structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1313—Metering, billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13345—Intelligent networks, SCP

Definitions

  • the present invention relates to networking technology of a communication network, and in particular, to a public telephone switching network
  • PSTN Public Switched Telephone Network
  • PSTN Public Switched Telephone Network
  • the PSTN integrates bearer functions, control functions, and circuit switching functions into program-controlled switches, which can provide fixed voice and other telecommunication services.
  • FIG. 1 is a schematic diagram of a basic networking structure of an existing PSTN. As shown in FIG. 1, the existing PSTN is composed of a camp account center 10, a service control point 11, a tandem office, and an end office. Figure 1 shows two tandem offices and six end offices as an example.
  • tandem office 12 tandem office 13, end office 14, end office 15, end office 16, end office 17, and end.
  • Bureau 18, End Office 19 End office 14, end office 15, end office 16, end office 17, end office 18, and end office 19 are connected to two higher tandem offices 12, tandem office 13, respectively, to provide users with C5 services, and C5 services are connection-oriented Incoming user services, or services directly related to user terminals;
  • Interconnection between tandem office 12, tandem office 13 provides service aggregation and C4 services, and C4 services are relay and convergence services;
  • (Billing Center) 10 is connected to the tandem office 12, the tandem office 13 and all end offices, and is used to obtain sufficient billing information from the end office and the tandem office and perform billing;
  • a service control point (SCP, Service Control Point) 11 refers to the international control point supporting advanced telephony services and intelligent network communication protocol services, that is, the service control point of the No. 7 signaling system, which can be connected to tandem bureau 12, tandem bureau 13, or directly The end offices are connected.
  • SCP is a control unit in the intelligent network, which
  • the advantages of the existing PSTN are that it occupies a huge network infrastructure and a huge number of users, and has high voice quality of service (QoS), and its services are relatively mature.
  • QoS voice quality of service
  • NGN Next Generation Network
  • PSTN Packet Control Protocol
  • packet networks have more advantages: For example, they can use bandwidth and equipment more efficiently, reduce the cost of voice transmission, and provide innovative services that combine voice and data.
  • 3G Third Generation
  • the 3G network is also based on packet technology, which can meet the growth needs of mobile communication.
  • PSTN evolution systems PSTN systems in transition mode are called PSTN evolution systems.
  • the existing PSTN evolution system model is generally divided into an integrated evolution model and a distributed evolution model:
  • the key functional components of NGN such as multi-service access, broadband switching, call, call control, service generation And so on, will be integrated into the integrated service switch, and the architecture of a single switch is used to ensure that the original PSTN evolves into the multi-service platform of NGN.
  • the NGN network is mainly composed of separate components, such as a call / session control module, an application server (AS, Application Server), a gateway, a switch, and a router.
  • AS Application Server
  • the second model is widely accepted in the industry.
  • FIG. 2 is a schematic diagram of a networking of a separated PSTN evolution system in the prior art.
  • this PSTN evolution system is composed of a camp account center 20, a service control point 21, a call server 22, and a media gateway (MG, Media Gateway).
  • the media gateway is divided into a lower-level media gateway and an upper-level media gateway.
  • seven media gateways are used as examples for illustration.
  • the media gateway 25, the media gateway 26, the media gateway 27, the media gateway 28, and the media gateway 29 are bottom media gateways, which are respectively connected to two upper media gateways, namely, the media gateway 23 and the media gateway 24, and the bottom media gateway is a user.
  • the upper-layer media gateway replaces the functions of the tandem office in the PSTN shown in Figure 1, that is, it provides service aggregation and C4 service functions.
  • the billing center 20 is connected to the call server 22 and all media gateways to obtain sufficient Billing information.
  • the service control point 21 is connected to the call server 22 and is used for controlling intelligent services.
  • the call server 22 (Call Server) is a soft switching device, also called a media gateway control (MGC, Media Gateway Control) controller, a media gateway 23, a media gateway 24, a media gateway 25, a media gateway 26, a media gateway 27, The actions of the media gateway 28 and the media gateway 29 are performed according to the commands of the call server 22.
  • the call server 22 mainly controls the media gateway 23 and the media gateway 24 to perform C4 services, and controls the media gateway 25, the media gateway 26, the media gateway 27, and the media.
  • the gateway 28 and the media gateway 29 perform C5 services, and also provide an interface for intelligent services, interact with the service control point, and complete the functions of an intelligent network service switch point (SSP).
  • SSP intelligent network service switch point
  • LE and TE ′ in the original PSTN need to be modified separately.
  • the control function and switching function of the traditional program-controlled switch in the original LE are separated, so that it only has circuit switching and forwarding functions, so as to transform into a simple switching node, that is, it becomes a low-level media gateway.
  • TE it is basically the same as LE, and the control function and exchange of the traditional program-controlled switch in the original TE also need to be Functionally separated?
  • the text creates a simple switching node, that is, it becomes an upper-layer media gateway.
  • the upper-layer media gateway triggers a call to the call server 22, and operates the service aggregation and C4 services according to the control command returned by the call server 22.
  • the service control function is separated from the LE and TE in the original PSTN and added to the call server 22, that is, the call server 22 integrates the control functions of the original LE switch and TE switch.
  • the traditional program-controlled switches of TE and LE in the original PSTN both need to be upgraded and transformed into a system that can perform command interaction with the call server and complete circuit switching and forwarding functions according to the command of the call server Media gateway to
  • the upstream media interface in the media gateway can retain the time division multiplexing (TDM, Time Division Multiplexing) interface of traditional program-controlled switches, or it can be directly transformed into an interface that supports grouping.
  • TDM Time Division Multiplexing
  • FIG. 3 is a system diagram of a traditional intelligent network based on PSTN.
  • the intelligent network adopts a network system based on a service switching point, which includes: a service generation environment 30, a service management access device 31, a service management point 32, a service control point 33, and a service switching point 34.
  • No. signaling network constitutes an intelligent network.
  • the service generation environment 30, which resides at the highest logical level of the intelligent network architecture, is mainly used to generate intelligent network services, to provide an environment in which intelligent network services can be defined, developed, and tested, and to provide simulated network configuration and simulated business software on the network. Operations and other functions.
  • the service management access device 31 and the service management point 32 belong to the service management system, and they constitute a service management system level. They are at the second layer in the logical layer of the intelligent network architecture and are responsible for managing the intelligent network and intelligent network services. Including management of services, management of business users, management of networks, access to services Management and management of system access.
  • the service control point 33 occupies the third layer in the logical layer of the intelligent network architecture. It plays the role of controlling and processing intelligent services in the entire intelligent network system, and it completes the service control function (SCF, Service Control Function) and business data. Function (SDF, Service Date Function), while accepting management of it by the business management system.
  • SCF Service Control Function
  • SDF Service Date Function
  • the service switching point 34 occupies the fourth layer in the logical layer of the intelligent network architecture, and mainly completes service switching functions (SSF, Service Switch Functions) and call control functions (CCF, Call Control Function), and is used to trigger a service call to the SCP, The call control function is completed according to the control instruction returned by the SCP.
  • the local bottom-level service switching point also has a call control access function, and the upper-level service switching point also includes a service trigger function. Only services that meet the trigger conditions are triggered to the service control point.
  • FIG. 4 is a schematic diagram of a networking of an intelligent network-type evolution system in the prior art.
  • this evolution system includes: a camp account center 40, a service control point 41, an upper-layer service exchange point, and a lower-layer service exchange point.
  • the exchange point 48 is described as an example.
  • the service switching point 44, the service switching point 45, the service switching point 46, the service switching point 47, and the service switching point 48 are respectively connected to two upper-layer service switching points to provide users with C5 services or other services directly related to user terminals. .
  • the service exchange point 42 and the service exchange point 43 replace the functions of the tandem office 12 and the tandem office 13 in FIG. 1, that is, to provide service aggregation and C4 service functions, but they do not have the function of service control.
  • the billing center 40 is connected to all business exchange points to obtain sufficient billing information for billing.
  • the service control point 41 may be connected to an upper-layer service exchange point, or may be directly connected to a lower-layer service exchange point, to provide control functions for intelligent services, and send service control instructions to the service exchange point Control the service switching point for call control.
  • the traditional program-controlled switch in LE and TE is transformed to make it have the capability of a service switching point. That includes SSF and CCF, but does not have business logic processing capabilities.
  • the TDM interface of the traditional program-controlled switch can be retained, and the TDM interface can support the protocol that can interact with the SCP to realize the service.
  • an object of the present invention is to provide an evolution system of a public telephone switching network, so as to realize the improvement of the reuse rate of existing equipment and network resources during the evolution of the public telephone switching network, and reduce the cost of reconstruction. , Relatively reduce the difficulty of construction.
  • Another object of the present invention is to provide a method for performing service processing on an evolved system of a public switched telephone network, so as to improve the reuse rate of existing equipment and network resources during the evolution of the public switched telephone network, and reduce the cost. Cost, relatively reducing the difficulty of construction.
  • An evolution system of a public switched telephone network includes: a billing center, multiple end offices, at least one service switching point, and at least one service control device, wherein:
  • the end office is configured to receive service calls from a user terminal and forward all received service calls to a service switching point;
  • the service switching point is used to perform call connection processing on a service call from an end office, trigger a service call that meets a preset service triggering condition to a service control device, and execute a call returned by the service control device for commanding call control.
  • a control instruction; the service exchange point is further configured to send service information for charging to the camp account center;
  • the service control device is configured to receive a service call from a service switching point that meets a service triggering condition, perform service processing according to service requirements, and return a control instruction for commanding call control to the service switching point;
  • the billing center is configured to perform billing according to service information from the service exchange point.
  • the service switching point includes a service switching function module and a call control function module, wherein: the service switching function module is configured to communicate with the service control device, and forward the control instruction returned by the service control device to the call control function module; For control function module It performs call / connection processing and control according to control instructions from the service switching function module.
  • the service control device includes all service processing function modules of a central office and a tandem office of a public switched telephone network, and is configured to process corresponding services triggered to the service control device.
  • the service control device is a service control point of an intelligent network or an application server of a next generation network.
  • the end office is an end office having a basic call transfer function in a public switched telephone network.
  • a method for performing service processing on an evolved system of a public switched telephone network includes:
  • the access layer of the evolved system forwards all received service calls to the tandem layer of the evolved system;
  • the tandem layer receives a service call from the access layer, directly performs call connection processing on a service call that does not meet the predetermined trigger condition, and triggers a service call that meets the predetermined trigger condition to the service layer of the evolved system;
  • the service layer performs service processing on a service call from the tandem layer, and sends a control instruction to the tandem layer to direct the service call; the tandem layer performs the service on the service according to the received control instruction. Perform call control.
  • the method by which the access layer forwards all service calls to the service switching point is as follows: the call forwarding direction of the access-layer program-controlled switch is directed to the tandem layer through data configuration in advance.
  • the method further includes: the tandem layer queries and receives the service call according to a correspondence relationship between a service call preset in a trigger condition and a service processing device type that processes the service call.
  • the type of service processing equipment corresponding to the service call If it is an intelligent network service control point, the received service call is triggered to the intelligent network service control point of the service layer for processing. If it is a next-generation network application server, Receive The service call is triggered to the next-generation network application server of the service layer for processing.
  • the method further comprises: the tandem layer sends service information for billing to a billing center of the evolved system, and the billing center performs billing according to the received service information.
  • the function of the access layer is realized by the end office of the public switched telephone network.
  • tandem layer The function of the tandem layer is realized by an intelligent network service switching point improved by the public telephone exchange network tandem office.
  • the function of the service layer is realized through the improved service control point of the public switched telephone network.
  • the improved method is: adding the service processing function modules of the end office program-controlled switch and the tandem office program-controlled switch of the public switched telephone network.
  • the business control point is: adding the service processing function modules of the end office program-controlled switch and the tandem office program-controlled switch of the public switched telephone network.
  • the functions of the business layer are implemented by an application server of the next generation network.
  • the technical solution of the present invention is different from the prior art in that, first, the switch of the tandem office is transformed into a service switching point, so that it has a service switching function, and the call can be triggered to the corresponding service control device according to different conditions. Service processing; Secondly, there is no need to upgrade the end office switch, and only use its call forwarding function to forward all services to the service exchange point in the tandem office through data configuration; again, the camp account center only needs to obtain the services from the service exchange point. Information for billing.
  • the billing center only collects business data for billing from the business exchange point, so the data collection cost in the billing process is simplified
  • tandem exchange because the tandem exchange only needs to be transformed into a business exchange point, the amount of engineering is small, The evolution scheme is relatively secure, and it does not need to consider the complex end office equipment situation, and does not need to perform large-scale replacement and upgrade.
  • FIG. 1 is a schematic diagram of a basic networking structure of an existing PSTN
  • FIG. 2 is a schematic diagram of a networking of a separated PSTN evolution system in the prior art
  • FIG. 3 is a system diagram of a traditional intelligent network based on PSTN
  • FIG. 4 is a networking diagram of an intelligent network evolution system in the prior art
  • FIG. 5 is a schematic diagram of networking of a PSTN evolution system according to an embodiment of the present invention
  • FIG. 6 is a flowchart of processing a co-vibration service by the PSTN evolution system shown in FIG. 5.
  • Mode for Carrying Out the Invention The present invention is described in detail below with reference to the drawings and specific embodiments.
  • FIG. 5 is a schematic diagram of networking of an evolved system according to an embodiment of the present invention.
  • the PSTN evolution system is composed of a business account center 50 and three levels, which are a service layer 51, a tandem layer 52, and an access layer 53 respectively.
  • the service layer 51 includes at least one service control device.
  • the service control device may be a service control point 510 in an intelligent network, or may be an application server 511 in NGN.
  • the service control point 510 and the application server 511 may also be used.
  • Combination composition The tandem layer 52 includes at least one service switching point, which is connected to the service control point 510 and the application server 511 in the service layer 51.
  • the service. Switching point 520 and the service switching point 521 are used as examples for description.
  • the access layer 53 includes a large number of end offices, which are connected to the service switching points in the tandem layer 52.
  • end offices 530, end offices 531, end offices 532, end offices 533, end offices 534, and. 535 indicates numerous end games.
  • the billing center 50 is connected to the service exchange point 520 and the service exchange point 521.
  • each end office is used to receive service calls from user terminals and forward all service calls to a service switching point connected to the end office in the tandem layer.
  • each end office can be connected to at least one service switching point, and the specific connection to several service switching points depends on the actual network environment.
  • each of the end offices continues to use the traditional program-controlled switch in the original PSTN end office, but the present invention mainly uses the basic service forwarding capability of the traditional program-controlled switch in the end office.
  • the traditional program-controlled switches of the company do data configuration, so that after receiving any traffic call, the end office directly sends the call to the service switching point in the tandem layer 52 connected to the end office. .
  • each of the service switching points includes a CCF module and an SSF module.
  • the SSF module is used to provide a communication interface between the CCF module and the service control device, and forward the control instructions returned by the service control device to the CCF module; the CCF module is used to make a call to a service call according to the control instructions forwarded by the SSF module.
  • Connection processing and control if the service control device is an application server in NGN or 3G, the communication interface provided by the SSF module also needs to include a packet protocol interface to communicate with the application server.
  • the service switching point mainly performs connection processing for service calls, and can set and store service triggering conditions according to factors such as the calling number, called number, or service type.
  • the CCF module determines whether the received service call meets the triggering conditions. If so, then Trigger the service call to the corresponding service control device; otherwise, the service call is not triggered.
  • the service switching point is used to receive a service call from an end office, perform continuous processing on the service call, and trigger a service call that meets a trigger condition to a corresponding service control device, and execute The control instruction returned by the service control device completes call control.
  • the service exchange point also sends service information for charging to the camp account center.
  • checkpoints and control points are also added to the service exchange points.
  • the checkout points are used to report various events that occur during call processing to the service control device, and wait for further control commands from the service control device.
  • the control point performs corresponding control on the call process according to the control command of the service control device.
  • the service switching point is implemented by modifying a traditional program-controlled switch in the original PSTN tandem office.
  • the traditional program-controlled switches in the original PSTN network that is, circuit switches have access functions, CCF, switching functions, business functions, and signaling functions. These functions are combined into a single switch, which is an integrated, closed and dedicated system structure.
  • the transformation includes: removing the service processing function module in the traditional program-controlled switch, simplifying the CCF module into a service-independent CCF module, upgrading the switching function module, and improving it to be an SSF module.
  • the SSF module provides a switch The communication interface between the original CCF module and the SCF module in the service control device enables the switch to perform service call control under the control of the SCF module.
  • the CCF module is simplified into a service-independent CCF module, and the switching function module is upgraded to an SSF module.
  • the method is the same as the existing intelligent network-type PSTN evolution system to simplify and upgrade program-controlled switches. No longer described here.
  • the traditional program-controlled switches in the PSTN tandem office can evolve into the service switching points described in the invention. If the traditional tandem switch of the original tandem office directly supported some packet interfaces and protocols, the service switching point obtained after the transformation can also directly trigger service calls to the application server in the NGN or 3G network, and the application server processes the service calls. . If the traditional tandem switch of the original tandem office did not directly support the packet interface and protocol, when the service control device is an application server, the packet interface and protocol need to be added to the SSF module of the service switching point.
  • the service exchange in the tandem layer described in this embodiment can also be MGC in NGN. Since many of the functions that MGC should have are currently provided by software of traditional program-controlled circuit switches, the MGC described in this embodiment can also be obtained by modifying the traditional program-controlled switches in the original PSTN tandem office.
  • the specific transformation method is the same as that described above.
  • the transformation method of the service switching point in the intelligent network PSTN evolution system is the same, and will not be described here.
  • the service control device may use a service control point of an existing intelligent network, an application server of an NGN network, or a combination device of a service control point and an application server.
  • the service control device includes an SCF module and an SDF module.
  • the SCF module is used to direct and control the call.
  • the SDF module stores the user's business data and network data.
  • the service control device also includes a service processing function module for processing business calls. A person skilled in the art can develop different business processing function modules according to different business processing requirements, and load the business processing function modules into a service control device.
  • the service control device is used to receive a service call from a service switching point, and call the corresponding service processing function according to the type of the service call.
  • the module performs service processing, returns control instructions to the service switching point according to the service processing requirements, and directs the service switching point to make a service call. control.
  • the SDF module may also be a separate device, and the SCF module communicates with the SDF module through an open interface.
  • the service control point in the existing PSTN is modified to obtain the service control device.
  • the service control point in the existing PSTN is also the SCP in the traditional intelligent network.
  • the transformation process is as follows: The service processing function modules included in the PSTN end office program-controlled switch and the tandem office program-controlled switch are added to the original PSTN service control point, and new service processing function modules are added according to service requirements.
  • the improved service control point plays the role of gradually smoothing service evolution during PSTN evolution. This can reduce the evolution cost.
  • the service control equipment uses an application server in the NGN network, add the service processing function modules of the original PSTN end office program-controlled switch and the tandem office program-controlled switch to the application server, and add the application server to the application server according to business requirements.
  • New Business Office ' Management function module
  • the accounting center 50 still uses the existing accounting center in the PSTN, except that the connection relationship with other equipment has changed.
  • the camp account center 50 since all service calls are connected by service switching points in the sink layer, the camp account center 50 does not need to be connected to all end offices in the access layer 53, but only needs to connect with All service switching points are connected, and the service switching point sends the service information for billing to the camp account center 50, and the bill account center 50 performs billing according to the received service information.
  • the PSTN evolution system only needs to evolve and transform the nodes of the three parts in the original PSTN, that is, it only needs to evolve and transform the equipment included in the three parts of the camp account center, the tandem bureau, and the service control point.
  • the traditional PSTN switches with the largest number, largest investment, different manufacturers, different models, and different versions of the original PSTN in the original PSTN do not make major changes, but only use the basic service forwarding capabilities of the traditional switches to risk evolution and transformation. And minimize cost.
  • the evolution of the traditional PSTN network is realized by making full use of the basic service forwarding capability in the traditional program-controlled switch and the transformation of the tandem office.
  • Various old and new services enjoyed by end users will be supported by an intelligent network composed of tandem layer service switching points and business layer SCPs, or a mixed network of intelligent networks and NGN composed of tandem layer SSP and business layer application servers .
  • Switches In the process of network evolution in the future, if traditional switches have evolved to various functional units such as MG, MGC, and signaling gateway, SCP control functions may be merged with MGC, and the business layer in the evolved system will be composed of application servers. Intelligent network services can also be integrated into NGN networks.
  • a basic telecommunication service co-vibration service is taken as an example to describe the method for processing services of the PSTN evolution system of the present invention.
  • Synchronous services need to set and store the trigger conditions of the service at the service switching point of the tandem layer.
  • a service processing module for processing the service is added to the service control device in the service layer.
  • the trigger condition here is: The called number has registered the same ringing contract information.
  • FIG. 6 is a flowchart of processing a co-vibration service by the PSTN evolution system according to the foregoing embodiment, and the process includes:
  • Step 601 The calling user calls the called user, the call reaches the end office of the access layer, and the end office directly forwards the call to the service switching point of the tandem layer.
  • the call forwarding direction of the end office program-controlled switch is directed to the service switching point through data configuration in advance, so that the end office transfers all received service calls to the service switching point.
  • Step 602 After receiving the call, the service switching point queries from the set trigger conditions whether the called user has registered the simultaneous ringing subscription information, and if so, triggers a synchronous ringing service call, and triggers the call to the service layer.
  • Business control equipment After receiving the call, the service switching point queries from the set trigger conditions whether the called user has registered the simultaneous ringing subscription information, and if so, triggers a synchronous ringing service call, and triggers the call to the service layer.
  • Step 603 Since a corresponding simultaneous-vibration service processing module is added to the service control device, after receiving the simultaneous-vibration service call from the service switching point, the service control device calls the synchronous-vibration service processing module to process and respond to the service call.
  • the called number and the corresponding ringing number are searched from the SDF module, and a call control control command is sent to the service switching point, and the control command includes the called number and the ringing number.
  • Step 604 The service switching point accepts a control command of the service control device, and performs call control according to the control command, that is, a call is simultaneously initiated to the called number and the simultaneous ringing number to complete the service.
  • Step 605 The service exchange point sends service information for billing to the camp account center, and the camp account center performs billing according to the received service information.
  • the service switching point triggers a service call to the service control device
  • the service switching point sends service information for billing to the camp account center, and the camp account center performs billing according to the received business information.
  • the service control device is usually a combination of a service control point and an application server. At this time, the type of the service control device corresponding to each service call needs to be included in the service triggering condition, that is, processing.
  • This service is an intelligent network service
  • the control point is also an NGN application server. After the service switching point receives the service call, the method further includes:
  • the service switching point queries the type of service processing equipment corresponding to the received service call. If it is an intelligent network service control point, it forwards the received service call to the intelligent network service control point. The point performs processing. If it is an NGN application server, then Forward the received service call to the NGN application server for processing.
  • the evolved system described in the present invention can be competent for a variety of periods.
  • the network business has achieved the objectives of smooth evolution, reuse of existing equipment and network resources as much as possible, protection of existing investment resources of telecommunication operators, and maximum avoidance of evolution risks.

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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un système évolutif de réseau de téléphone public commuté et un procédé de traitement de services de ce dernier, lequel procédé fonctionne de la manière suivante: tout d'abord, on reconstruit le central en un central tandem au point de commutation des services, et on lui permet d'exercer une fonction de commutation des services, et on déclenche l'appel vers le point de contrôle des services correspondant sous différentes conditions afin d'effectuer le traitement des services. Ensuite, il n'est pas nécessaire d'actualiser le central local, mais uniquement de transférer tous les services vers le point de commutation des services par configuration des données en utilisant l'appel et la fonction de renvoi automatique d'appels. Enfin, le centre de facturation peut n'acquérir que les informations de service pour procéder à la facturation depuis le point de commutation des services. L'invention permet d'optimiser l'utilisation du dispositif de sortie et des ressources réseau et, par conséquent, de réduire les coûts et la difficulté de l'application technique.
PCT/CN2005/000633 2004-05-10 2005-05-08 Systeme evolutif de reseau de telephone public commute et procede de traitement de services de ce dernier WO2005109777A1 (fr)

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BRPI0510949-3A BRPI0510949A (pt) 2004-05-10 2005-05-08 sistema evolucionário de rede de telefonia comutada pública e método de processamento de serviço do mesmo

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CNB2004100444530A CN1311694C (zh) 2004-05-10 2004-05-10 公用电话交换网演进系统及其方法
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CN1874370B (zh) * 2005-12-30 2010-05-05 华为技术有限公司 一种话务统计方法
CN101262535B (zh) * 2008-04-11 2011-02-16 华为技术有限公司 呼叫计费方法、系统、装置和设备
CN101895849A (zh) * 2009-05-19 2010-11-24 华为技术有限公司 一种业务处理方法、通讯系统以及相关设备
CN101902824B (zh) * 2009-05-31 2012-11-07 华为技术有限公司 一种本地交换的实现方法、移动交换中心和通信系统
CN103716337B (zh) * 2012-09-29 2016-12-21 中国银联股份有限公司 云计算网络系统及其中数据处理的方法

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WO1999051040A1 (fr) * 1998-03-30 1999-10-07 Siemens Aktiengesellschaft Procede et unite de fourniture de services destines a la demande d'informations en cas d'appels entrants adresses a un abonne d'un reseau de communication
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RU2336649C1 (ru) 2008-10-20
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CN1697528A (zh) 2005-11-16
CN1311694C (zh) 2007-04-18

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