CN1901575B - Method for controlling relay resource of virtual switchboard service - Google Patents
Method for controlling relay resource of virtual switchboard service Download PDFInfo
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- CN1901575B CN1901575B CN2005100852483A CN200510085248A CN1901575B CN 1901575 B CN1901575 B CN 1901575B CN 2005100852483 A CN2005100852483 A CN 2005100852483A CN 200510085248 A CN200510085248 A CN 200510085248A CN 1901575 B CN1901575 B CN 1901575B
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Abstract
This invention relates to a method for controlling relay resources used in the virtual phone exchange services including that the relay resource uses a login process and a logout process based on No.7 signaling, in which, the login process includes: a group user initiates a virtual phone exchange service call, a service exchange point of the region where the group user places transmits the related information of said user and the relay register request of the resource to the service control point by No.7 signaling to decide it and organize register response information to be sent to relative service exchange points by No.7 signaling based on the configuration data and current applied situation, which decides operation of the next step based on the response information fed back by the service control point to decide if this time of call is permited, which realizes unified management and control of relay resources and saves large amount of networks and terminal devices.
Description
Technical field
The present invention relates to the application technology of virtual central office service, in particular, relate to a kind of method of controlling based on the virtual central office service relay resource of Signaling System Number 7 net.
Background technology
Virtual central office service is a kind of technology of utilizing virtual central office equipment that the virtual central office code service is provided for group, this technology is that switching network operator provides the virtual central office code service by virtual central office equipment and artificial centralized services for group, the virtual central office number can be fixed telephone number, Mobile Directory Number etc., and the virtual central office that artificial centralized services can be all groups provides manual service such as directory enquiry, secretary.The group that has applied for virtual central office can distribute extension for its employee by administration interface, and the corresponding relation between foundation and the employee's telephone number, adopt group's virtual central office, the extension of group can be roamed, the extension of group can be routed on the different telephone numbers on a time period, the extension of group can be done encryption, and the artificial secretarial service of 24 hours round-the-clock virtual central offices etc. is provided.
No.7 signalling system is a kind of international, standardized universal common channel signalling system, it can satisfy the requirement of multiple communication service, can be used for telephone network, intelligent network and integrated digital network etc., can also be as a kind of reliable transfer system, between exchange and Special Service Center, carry out the information transmission, therefore, No.7 signalling system is the indispensable support system of leading to network synthesization, intelligent development.
The basic structure of Signaling System Number 7 mainly is divided into Message Transfer Part (MTP), signal connecting element branch (SCCP) and User Part (UP).Wherein, User Part (UP) comprises ordinary telephone subscriber part (TUP), ISDNYong Hubufen (ISUP) and mobile subscriber's part (MAP) etc.
Existing application in the relay resource control method of virtual central office service by increasing the relay resource Control Server at virtual central office service and the relay resource configuration database is realized.Wherein, the relay resource Control Server is responsible for handling relay resource registration, the logout message from the virtual central office service Access Layer, by retrieval relay resource configuration database, obtain calling out relevant relay resource configuration information with this virtual central office service, and return corresponding RACK response acknowledge information to virtual central office service according to the current relay resource operating position of group user, with next step action of control virtual central office service to this calling; The relay resource configuration database then be responsible for to be preserved the relay resource configuration information of each group user in the virtual central office service, the foundation that relay resource is managed and controls as the relay resource Control Server.
Can control effectively to taking of relay resource and manage group user at the relay resource control method of virtual central office service, also can implement different relay resource control and management strategy at different group users.But there is following major defect in existing relay resource control method at virtual central office service:
1. at present used relay resource control system at virtual central office service can only will realize single-point control, promptly can only implement relay resource control to the calling of group user in same geographic area, and can't realize multiple spot control, promptly can't be implemented in a plurality of geographic areas relay resource is realized multi-point cooperative management and control, also just can't realize large-scale virtual central office service.
2. the relay resource control system based on the existing network framework can not provide ripe effectively backup and redundancy scheme, this also causes existing application to be difficult to be guaranteed in the reliability of the relay resource control system of virtual central office service, in case a certain device fails, existing system is difficult to carry out fault recovery fast and redundancy is switched, fault is on average lasted longer, directly has influence on the normal operation of virtual central office service.
Therefore, there is defective in prior art, and awaits improving and development.
Summary of the invention
The purpose of this invention is to provide a kind of method that is applied to the control of virtual central office service relay resource, at defective that exists in the prior art and deficiency, virtual central office service relay resource control based on the Signaling System Number 7 net, save a large amount of networks and terminal equipment, also can realize switching fast under automatic routing and the malfunction, thereby significantly reduce the operation and the maintenance cost of network, finally provide than existing relay resource control system more high reliability and relay resource control method more cheaply for operator and group user.
Technical scheme of the present invention comprises:
A kind of method that is applied to the control of virtual central office service relay resource, based on the Signaling System Number 7 net, it comprises relay resource use registration process and log off procedure; Described registration process comprises:
A), a group user initiates virtual central office service and calls out, the name a person for a particular job relevant information and the relay resource register requirement of this group user of the operation exchange of this group user location sends to the corresponding business control point by Signaling System Number 7 message;
B), described service control point is decoded the relay resource registration message, configuration data and current operating position according to the relay resource of this group user are carried out the relay resource registration, and organize registration reply message, send to the corresponding business exchange point by the Signaling System Number 7 net;
C), the response message returned according to the corresponding service control point of described Service Switching Point, determine next step action, determine promptly whether this calling is allowed to.
Described relay resource log off procedure comprises:
D), certain virtual central office service end of calling of a group user, the name a person for a particular job relevant information and the relay resource de-registration request of this group user of the operation exchange of this group user location sends to the corresponding business control point by Signaling System Number 7 message;
E), described service control point is relay resource logout message decoding, carries out relay resource and nullifies, the relay resource operating position of this group user is upgraded operation, and nullifies failure or success message for described Service Switching Point loopback;
F), described Service Switching Point is according to the response message that described service control point returns, and determines next step action.
Described method, wherein, the registration of relay resource in the described step b) is specially: relay resource control process judges according to the relay resource configuration data whether relay resource exceeds the restriction amount, if do not exceed limit amount then:
A1), distribute serial number, message is saved in the formation, and is major key to the operation that adds up of corresponding counter by group number, service class model;
A2), the message that succeeds in registration that will return to virtual central office service of described relay resource control process, send to described service control point with internal communication protocol using;
A3), described service control point is resolved the message of receiving that succeeds in registration, and it is distributed to virtual central office service with internal agreement.
Described method, wherein, described step a3) in, the message that succeeds in registration that described service control point will be resolved simultaneously is packaged into TCAP Transaction Capability Application Part message, according to the signalling route in the relay resource control information routing table, this message that succeeds in registration is distributed to relevant service control point by the Signaling System Number 7 net; Each relevant service control point is being received the notification message that succeeds in registration, with the local corresponding relay and control data message table that upgrades in time, to guarantee the data sync between each service control point.
Described method, wherein, in the described step b), if relay resource control process judgement relay resource exceeds limit:
B1), described relay resource control process is according to the group in the registration message number, service class model, take sum or relaying that should business as the relaying of this group and take number and arrived the upper limits, the relaying of each group takies sum, each professional relaying of each group takies number configuration respectively;
B2), described relay resource control process tissue is to the registration failure message that virtual central office service returns, and comprises the type of service of failure in the message, the relaying that the current relaying of this group takies sum and this type of service takies number;
B3), the registration failure message that will return to virtual central office service of described relay resource control process, send to the corresponding business control point with internal communication protocol using;
B4), described service control point is resolved the registration failure message of receiving, and it is distributed to virtual central office service with internal agreement.
Described method, wherein, described step b) also comprises described relay resource control process according to the relay resource configuration data, if the expired cancellation of relaying, then:
C1), during described relay resource control process check registration database,, then do not take number and reduce operations if find in the registration message formation not this message.
Described method, wherein, described log off procedure also comprises the process that outdated information is nullified automatically, it comprises:
G1), the described relay resource control process periodic scanning message queue that succeeds in registration;
G2), be expired registration message as the current system time of time interval of finding to succeed in registration, described relay resource control process is rejected the expired registration message in this message queue, and is that major key subtracts 1 to corresponding counter by group number, service class model one by one.
A kind of method that is applied to the control of virtual central office service relay resource provided by the present invention, relay resource control system based on the Signaling System Number 7 net, the all functions of the unified management and the control of relay resource in virtual central office service, have been realized, a large amount of networks and terminal equipment have been saved simultaneously, and significantly improved the stability of relay resource management system operation in the virtual central office service, greatly reduce the mean failure rate recovery time of relay resource management system, thereby solved the major defect that aforementioned present virtual central office service relay resource management system exists effectively, made the overall performance index of virtual central office service that large increase arranged.
Description of drawings
Fig. 1 is the system block diagram based on the relay resource control system of Signaling System Number 7 net of the inventive method;
Fig. 2 a～Fig. 2 c is respectively the service control point (SCP) theory diagram that has the relay resource management function of the inventive method, wherein Fig. 2 a is a relay resource control information routing table, Fig. 2 b is a relay resource operating position dynamic data table, and Fig. 2 c is a relay resource configuring static tables of data;
Fig. 3 is the relay resource register flow path figure based on the relay resource control system of Signaling System Number 7 net of the inventive method;
Fig. 4 is the relay resource logout flow path figure based on the relay resource control system of Signaling System Number 7 net of the inventive method.
Embodiment
Below in conjunction with accompanying drawing, will be described further each preferred embodiment of the present invention.
The method that is applied to the control of virtual central office service relay resource of the present invention, as shown in Figure 1, a plurality of group user extension sets can be from one or more geographic area access of virtual central office service, these a plurality of geographic areas both had been responsible for the group user in the one's respective area is realized inserting, also be responsible for simultaneously and other regional service control point (SCP)s between coordinated management and control, realize striding the large-scale virtual central office service of a plurality of geographic areas thus.
Shown in Fig. 2 a～Fig. 2 c, be the theory diagram that the inventive method has the service control point (SCP) of relay resource management function, it comprises relay resource control information routing table, relay resource operating position dynamic data table, relay resource configuring static tables of data, and wherein said relay resource control information routing table is used for sending the signalling route selection of coordinated management and control information between a plurality of SCP; Described relay resource operating position dynamic data table is preserved the multidate information of each group user relay resource operating position; Described relay resource configuring static tables of data is preserved each group user and is allowed the relay resource configuration information that uses.
Virtual central office service relay resource control method based on the Signaling System Number 7 net of the present invention, it comprises relay resource use registration process and log off procedure.
Wherein the registration process of relay resource mainly comprises as shown in Figure 3:
1. described group user is initiated virtual central office service and is called out, and the service switching point of group user location sends to corresponding business control point SCP with the relevant information and the relay resource register requirement of group user by Signaling System Number 7 message.
2. the service control point (SCP) is relay resource registration message decoding, according to the configuration data and the current operating position of the relay resource of this group user, organizes registration reply message and sends to corresponding SSP by the Signaling System Number 7 net.
3.SSP according to the response message that SCP returns, determine next step action, determine promptly whether this calling is allowed to or other.
The log off procedure of described relay resource mainly comprises as shown in Figure 4:
1. certain virtual central office service end of calling of described group user, the service switching point of group user location sends to corresponding business control point SCP with the relevant information and the relay resource de-registration request of group user by Signaling System Number 7 message.
2. the service control point (SCP) is upgraded operation with the decoding of relay resource logout message to the relay resource operating position of this group user, and nullifies failure or success message for the SSP loopback.
3.SSP, determine next step action according to the response message that SCP returns.
Be the relay resource register flow path figure of the relay resource control system based on the Signaling System Number 7 net of the present invention as shown in Figure 3, its detailed process is described as follows:
1. virtual central office service is collected the relevant parameter of group user information and this calling when the calling of receiving group user, prepares to initiate register requirement to the relay resource Control Server.
2. the service switching point of group user location sends to corresponding business control point SCP with the relevant information and the relay resource register requirement of group user by special TCAP message in the Signaling System Number 7.
3. the service control point (SCP) sends to relay resource control service processes with the decoding of the relay resource registration message among TCAP back with internal communication protocol using.
4. relay resource control process receives the registration message of virtual central office service, searches the relay resource configuration database according to call data that comprised in the message and user profile, registers according to group number, service class model that relaying takies in the registration message.
Described relay resource control process can be carried out following operation respectively according to the resource data configuring condition in the relay resource configuration database:
A) as not exceeding the restriction amount;
A1), distribute serial number, message is saved in the formation, and is major key to the operation that adds up of corresponding counter by group number, service class model;
A2), the message that succeeds in registration that will return to virtual central office service of relay resource control process, send to SCP with internal communication protocol using.
A3), SCP resolves the message of receiving that succeeds in registration, and it is distributed to virtual central office service with internal agreement.Simultaneously it is packaged into TCAP Transaction Capability Application Part TCAP (Transaction Capabilities Application Part) message, according to the signalling route in the relay resource control information routing table, this message that succeeds in registration is distributed to relevant SCP by the Signaling System Number 7 net.
A4), each relevant SCP receiving the notification message that succeeds in registration, with the local corresponding relay and control data message table that upgrades in time, to guarantee the data sync between each SCP.
B) handle relaying and take overrun condition;
B1), described relay resource control process is according to the group in the registration message number, service class model, taking sum or relaying that should business as the relaying of this group takies number and has arrived the upper limits, the relaying of each group takies sum, each professional relaying of each group takies number and can dispose respectively, then carries out following processing;
B2), relay resource control process tissue is to the registration failure message that virtual central office service returns, and comprises the type of service of failure in the message, the relaying that the current relaying of this group takies sum and this type of service takies number.
B3), the registration failure message that will return to virtual central office service of relay resource control process, send to SCP with internal communication protocol using.
B4), SCP resolves the registration failure message of receiving, and it is distributed to virtual central office service with internal agreement.
C) handle the expired cancellation situation of relaying;
C1), during relay resource control process check registration database,, then do not take number and reduce operations if find in the registration message formation not this message.
Be the relay resource logout flow path figure based on the relay resource control method of Signaling System Number 7 net of the inventive method as shown in Figure 4.
Its detailed process is described as follows:
1) normal processes
A) end of calling, virtual central office service is collected the relevant parameter of group user information and this calling, prepares to initiate de-registration request to the relay resource Control Server;
B) service switching point of group user location sends to corresponding business control point SCP with the relevant information and the relay resource de-registration request of group user by special TCAP message in the Signaling System Number 7.
C) service control point (SCP) sends to relay resource control service processes with the decoding of the relay resource logout message among TCAP back with internal communication protocol using.
D) relay resource control process receives the registration message of virtual central office service, nullify operation according to group number, service class model, the time of succeeding in registration, registration serial number that relaying takies in the logout message, service class model in the logout message can be many, adopt separator separate (as " 0^2 " expression nullify simultaneously total relaying take with the exchange relaying take).
E) relay resource control process is rejected registration message in the formation according to succeed in registration time and registration serial number, and is that major key subtracts 1 to corresponding counter by group number, service class model.
F) the relay resource control process cancellation success message that will return to virtual central office service sends to SCP with internal communication protocol using.
G) SCP resolves the logout message of receiving, and it is distributed to virtual central office service with internal agreement.Simultaneously it is packaged into TCAP message,, this is nullified success message be distributed to relevant SCP by the Signaling System Number 7 net according to the signalling route in the relay resource control information routing table.
H) each relevant SCP is receiving the notification message that succeeds in registration, with the local corresponding relay and control data message table that upgrades in time, to guarantee the data sync between each SCP.
2) outdated information is nullified automatically;
A) described relay resource control process is regular, as the message queue that succeeds in registration of scanning in 1 minute at interval, as finding to succeed in registration the expired registration message of the current system time of time interval, as being 10 minutes with the expired time default setting, and configurable, relay resource control process will be done following the processing;
B) described relay resource control process is rejected the expired registration message in the formation, and is that major key subtracts 1 to corresponding counter by group number, service class model one by one.
A kind of virtual central office service relay resource control method provided by the present invention based on the Signaling System Number 7 net, it can finish functions such as the effective control that takies at the group user relay resource and management equally, but because it directly utilizes existing ripe No. 7 signaling network, thereby a large amount of networks and terminal equipment have been saved, can also realize switching fast under automatic routing and the malfunction, thereby band significantly reduces the operation and the maintenance cost of network, finally provides than existing relay resource control system more high reliability and relay resource control method more cheaply for operator and group user.
The inventive method is based on the relay resource control system of Signaling System Number 7 net, with the common relay resource management server that is applied to virtual central office service certain similarity is arranged on overall design philosophy, but it is essentially different on the implementation of system group network mode and in house software module and ins and outs, and key is following some tangible improvement:
1. directly utilize existing equipment of Service Control Point, the relay resource configuration database directly is attached on the background data base of service control point, the relay resource Control Server, communicates with internal agreement and service control point on the server at service control point place as the additional process isolated operation.So just, can finish all functions of relay resource management in the situation that does not increase any hardware cost.
2. the virtual central office equipment at each regional place all has the local copy of relay resource operating position data, under the situation that the relay resource operating position data in a certain area change, the virtual central office equipment in other relevant areas all will be received the data sync refresh notification immediately, thereby the virtual central office equipment that guarantees the geographic area of each dispersion can link, multi-point cooperative control realizes striding the large-scale virtual central office service of a plurality of geographic areas thus.The Design Mode of existing virtual central office service then can't be realized relay resource is realized multi-point cooperative management and control, also just can't realize this large-scale virtual central office service of striding a plurality of geographic areas.
3. by expanding existing Intelligent Network Application Protocol, this point can utilize the spare fields in the related higher-level agreement to be easy to realize, so just, can make full use of the effective backup and the redundancy scheme that have mature and stable No. 7 signaling network now, the easiest network system that breaks down and be difficult to safeguard in the relay resource management system in the virtual central office service is based upon on the ripe carrier class network dexterously, thereby the network security and the maintenance level that just get the relay resource management system in the virtual central office service easily reach the carrier class level, fault recovery fast can be carried out and redundancy is switched, fault is on average lasted greatly and to be shortened, thereby provides strong guarantee for the normal operation of virtual central office service.
Therefore, adopt the inventive method can realize all functions of the unified management and the control of relay resource at virtual central office service, a large amount of networks and terminal equipment have been saved simultaneously, and significantly improved the stability of relay resource management system operation in the virtual central office service, greatly reduce the mean failure rate recovery time of relay resource management system, thereby solved the major defect that aforementioned present virtual central office service relay resource management system exists effectively, made the overall performance index of virtual central office service that large increase arranged.
Should be understood that above-mentioned description at specific embodiment is comparatively detailed, can not therefore think the restriction to scope of patent protection of the present invention, scope of patent protection of the present invention should be as the criterion with claims.
Claims (6)
1. one kind is applied to the method that the virtual central office service relay resource is controlled, and based on the Signaling System Number 7 net, it comprises relay resource use registration process and log off procedure; Described registration process comprises:
A), a group user initiates virtual central office service and calls out, the name a person for a particular job relevant information and the relay resource register requirement of this group user of the operation exchange of this group user location sends to the corresponding business control point by Signaling System Number 7 message;
B), described service control point is decoded the relay resource registration message, configuration data and current operating position according to the relay resource of this group user are carried out the relay resource registration, and organize registration reply message, send to the corresponding business exchange point by the Signaling System Number 7 net;
C), the response message returned according to the corresponding service control point of described Service Switching Point, determine next step action, determine promptly whether this calling is allowed to.
Described relay resource log off procedure comprises:
D), certain virtual central office service end of calling of a group user, the name a person for a particular job relevant information and the relay resource de-registration request of this group user of the operation exchange of this group user location sends to the corresponding business control point by Signaling System Number 7 message;
E), described service control point is relay resource logout message decoding, carries out relay resource and nullifies, the relay resource operating position of this group user is upgraded operation, and nullifies failure or success message for described Service Switching Point loopback;
F), described Service Switching Point is according to the response message that described service control point returns, and determines next step action.
2. method according to claim 1, it is characterized in that, the registration of relay resource in the described step b) is specially: relay resource control process judges according to the relay resource configuration data whether relay resource exceeds the restriction amount, if do not exceed limit amount then:
A1), distribute serial number, message is saved in the formation, and is major key to the operation that adds up of corresponding counter by group number, service class model;
A2), the message that succeeds in registration that will return to virtual central office service of described relay resource control process, send to described service control point with internal communication protocol using;
A3), described service control point is resolved the message of receiving that succeeds in registration, and it is distributed to virtual central office service with internal agreement.
3. method as claimed in claim 2 is characterized in that,
Described step a3) in, the message that succeeds in registration that described service control point will be resolved simultaneously is packaged into TCAP Transaction Capability Application Part message, according to the signalling route in the relay resource control information routing table, this message that succeeds in registration is distributed to relevant service control point by the Signaling System Number 7 net; Each relevant service control point is being received the notification message that succeeds in registration, with the local corresponding relay and control data message table that upgrades in time, to guarantee the data sync between each service control point.
4. method according to claim 2 is characterized in that, in the described step b), if relay resource control process judgement relay resource exceeds limit:
B1), described relay resource control process is according to the group in the registration message number, service class model, take sum or relaying that should business as the relaying of this group and take number and arrived the upper limits, the relaying of each group takies sum, each professional relaying of each group takies number configuration respectively;
B2), described relay resource control process tissue is to the registration failure message that virtual central office service returns, and comprises the type of service of failure in the message, the relaying that the current relaying of this group takies sum and this type of service takies number;
B3), the registration failure message that will return to virtual central office service of described relay resource control process, send to the corresponding business control point with internal communication protocol using;
B4), described service control point is resolved the registration failure message of receiving, and it is distributed to virtual central office service with internal agreement.
5. method according to claim 1 is characterized in that, described step b) also comprises described relay resource control process according to the relay resource configuration data, if the expired cancellation of relaying, then:
C1), during described relay resource control process check registration database,, then do not take number and reduce operations if find in the registration message formation not this message.
6. method according to claim 1 is characterized in that, described log off procedure also comprises the process that outdated information is nullified automatically, and it comprises:
G1), the described relay resource control process periodic scanning message queue that succeeds in registration;
G2), be expired registration message as the current system time of time interval of finding to succeed in registration, described relay resource control process is rejected the expired registration message in this message queue, and is that major key subtracts 1 to corresponding counter by group number, service class model one by one.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1469599A (en) * | 2002-07-16 | 2004-01-21 | 华为技术有限公司 | Method of realizing virtual special network among several business control nodes |
| CN1599467A (en) * | 2004-08-18 | 2005-03-23 | 侯万春 | Equipment and method for realizing virtual switchboard by tandom mode |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1469599A (en) * | 2002-07-16 | 2004-01-21 | 华为技术有限公司 | Method of realizing virtual special network among several business control nodes |
| CN1599467A (en) * | 2004-08-18 | 2005-03-23 | 侯万春 | Equipment and method for realizing virtual switchboard by tandom mode |
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