CN100473026C - Method for controlling realtime monitor service - Google Patents
Method for controlling realtime monitor service Download PDFInfo
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- CN100473026C CN100473026C CNB2006100578943A CN200610057894A CN100473026C CN 100473026 C CN100473026 C CN 100473026C CN B2006100578943 A CNB2006100578943 A CN B2006100578943A CN 200610057894 A CN200610057894 A CN 200610057894A CN 100473026 C CN100473026 C CN 100473026C
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Abstract
The method comprises: a) setting the monitoring attributes of the terminal in context, informing it to gateway; in the monitoring attributes, appointing the type of monitoring terminal as the monitoring terminal, or monitored terminal or normal terminal; setting a home monitoring group for the monitored terminal; setting a monitored group and the direction of media stream for the monitoring terminal; b) after receiving the notice, according to the monitoring attribute the gateway sets the relevant terminal; after setting, the gateway searches all monitoring and monitored terminals in context, and according to media stream direction set by each monitoring end, copies the media stream belonging to the monitored terminals under the monitoring group.
Description
Technical field
The present invention relates to the professional implementation method of a kind of real-time listening control, especially relate to a kind of continuing and carry out the implementation method of monitoring service by the circuit domain intra-gateway.
Background technology
Wireless third generation communication network (WCDMA, CDMA2000, TD-SCDMA) and in the core net circuit domain of next generation network (NGN), the thought and the networking mode that have all adopted carrying to separate with control.Its main network element is media gateway (MGW) and gateway controller (MGC).Media gateway provides the controlled function of Media Stream, is mainly the foundation and the maintenance of carrying, the control that continues, and speech coding is handled and is changed or the like.Gateway controller provides functions such as calling out control and mobile management, mainly comprises calling control flow, subscription authentication, charging etc.The real-time listening business is the important means of police's monitoring and scouting, therefore becomes the desired necessary communications network functionality of national governments and telecom operators.The main purpose of monitoring service is exactly to set up the unidirectional relationship to the prison hearer by the prison hearer.The prison hearer can receive by prison hearer's transmission and/or receiving media stream.
In carrying and the control network architecture of separating with H.248/Megaco realize monitoring service on the basis of agreement, mainly contain two kinds of thinkings at present:
One, the outer means implementation of gateway
The main thought of this mode is: will supervise the hearer and be considered as gateway entity in addition, as the side in calling out.The prison hearer does not appear in the context at eavesdropping target place with the form of terminal, is free on its outer (as Fig. 1).Gateway controller sets a property on by prison hearer's terminal by bag (Package) or other modes, makes gateway know and the related media streams of this terminal is duplicated to send to which prison hearer.In general, these attributes comprise that mainly IP address and port numbers, the needs of supervising the hearer receive by the Media Stream of which direction of prison hearer.
The major defect of this mode is: the prison hearer is actually an independent network element entity, needs gateway and gateway controller equipment in addition to be supported.This has increased the complexity and the cost of network.
Be unfavorable for realizing being supervised the monitoring service of one-to-many between hearer and the prison hearer.Because this method need be to being repeated to be provided with prison hearer attribute when realizing by the prison hearer.Monitored by what prison hearers by the prison hearer, just the how many times attribute need be set thereon, the loaded down with trivial details not easy care of flow process.
Two, the intra-gateway implementation that continues
The main thought of this mode is: prison hearer and quilt prison hearer appear on the gateway with the form of terminal.Monitoring continues and realizes at intra-gateway.At present, this mode mainly contains two kinds of implementation methods:
2.1 the prison hearer supervises in the different context in hearer office with quilt.
This method is to be placed on the same gateway with prison hearer terminal with by prison hearer terminal, and sets up a context (as Fig. 2) for the prison hearer specially.Only contain prison hearer terminal in this context.The method determines to monitor relation by system configuration, will directly be received on the monitoring terminal by prison hearer's inlet flow and/or output stream, thereby realize monitoring service.
The major defect of this method is: this method requires the stream between the terminal to step up hereinafter.This is actually the relation that requires to set up different context terminal rooms.This can't be described with the topological structure of consensus standard at present, and with H.248/Megaco the essence spirit of agreement and the implication of stream deviate from mutually.If realize this method, just need carry out special processing.This can destroy the consistency of gateway control, also brings potential hazard for the stability of a system.
2.2 the prison hearer is in the identical context with quilt prison hearer.
This method will be supervised hearer's terminal and will be placed in the same context by prison hearer terminal, describe the relation of supervising between hearer and the quilt prison hearer by certain means.The means of describing relation mainly contain two kinds at present.A kind of is to specify by the topology of standard, and a kind of is by setting a property on prison hearer terminal, directly indicating its eavesdropping target and be which terminal.The major defect of these two kinds of means is:
Describe the prison hearer and, when the context terminal is many, can cause topological relation very complicated, restive by topology by the relation between the prison hearer.
Describe the prison hearer and, in fact can't determine the relation between them in some cases by topology by the relation between the prison hearer.This makes the monitoring of certain operations (as playback) continue and controls and can't carry out.For example T1 and T2 carry out both sides' conversation, monitor terminal P to wherein a side reception and sending direction are monitored simultaneously.But no matter which side P implement such monitoring to, and the result who uses topology to describe is the same (as Fig. 3).At this moment, concerning monitoring terminal P, single eavesdropping target that can't judge oneself from the topological structure.
Describe the relation of monitoring by on prison hearer terminal the attribute that directly indicates the eavesdropping target being set, a prison hearer's eavesdropping target can only be a terminal.Therefore, this type patent of having announced at present can't realize that all a prison hearer monitors a plurality of eavesdropping targets' business simultaneously.
Describe the relation of monitoring by on prison hearer terminal the attribute that directly indicates the eavesdropping target being set, require prison hearer terminal just can be provided with after its eavesdropping target has been present in the context, this has limited professional flexibility to a certain extent.
Summary of the invention
The technical problem to be solved in the present invention provides the implementation method of real-time listening control business on a kind of circuit domain gateway, sets up complexity, the technical problem that can not be provided with flexibly to solve the relation of monitoring in the prior art.
For solving the problems of the technologies described above, the professional implementation method of real-time listening control provided by the invention may further comprise the steps:
(a) monitoring attribute and the notification gateway of terminal in the setting context, in monitoring attribute, specify terminal type for monitoring terminal, being monitored terminal or general terminal, and for being monitored the monitoring group that terminal is provided with ownership, for monitoring monitoring group and the Media Stream direction that the terminal setting will be monitored;
(b) after gateway is received this notice, corresponding terminal is provided with according to described monitoring attribute;
(c) after accomplishing the setting up, gateway is searched for all the monitoring terminals in this context and is monitored terminal, and duplicate the medium of being monitored terminal that belong to its monitoring group that will monitor according to the Media Stream direction that each monitors the terminal setting and flow to and respectively monitor terminal, realize monitoring control.
Further, comprising one or more terminals of being monitored for monitoring the set monitoring group that will monitor of terminal, should the monitoring group be empty group maybe; Monitoring group comprises a plurality of when being monitored terminal, and each is monitored terminal and has consistent monitoring with the monitoring terminal of monitoring this group and concern.
Further, monitored terminal for one and belong to a plurality of different monitoring groups simultaneously, the sphere of action of described monitoring group is a context, and each monitoring group has a unique sign, and the monitoring group that different contexts has like-identified is considered as different monitoring groups.
Further, in the step (b), be the monitoring terminal, and, then stop media stream duplication, then new monitoring attribute is noted based on original monitoring relation through judging that it was to monitor terminal originally if pre-set a terminal type.
Further, in the step (b), if pre-set a terminal type for monitoring terminal, and through judge its former be not to monitor terminal, then disconnect on this terminal according to continuing that topological relation and other-end carry out, former type to this terminal is judged again, if the former type of this terminal is general terminal, then writes down the new monitoring attribute of this terminal; If the former type of this terminal is monitored terminal, then stop the media stream duplication on its monitoring terminal of monitoring after, write down the new monitoring attribute of this terminal again.
Further, in the step (b), if pre-set a terminal type for being monitored terminal, and through judging that this terminal monitored terminal, after then stopping this terminal and monitoring media stream duplication on terminals, revise the ownership monitoring group of this terminal to all.
Further, in the step (b), monitor terminal if pre-set a terminal type for quilt, and, this terminal type is judged again,, then write down the monitoring attribute of this terminal if the former type of this terminal is general type through judging the former terminal of not monitored of this terminal; If the former type of this terminal, then stops all media stream duplications on it for monitoring terminal, and recover to continue, write down the monitoring attribute of this terminal again with other-end according to topological relation.
Further, in the step (b), if to pre-set a terminal type be general terminal, and through judging that this terminal type monitored terminal, then stop it to the media stream duplication of monitoring terminal and this terminal type is set is general terminal; If through judging that this terminal type was to monitor terminal originally, then stop the media stream duplication on it, the topology that returns to other-end according to topological structure continues then, and this terminal type is set is general terminal.
Further, step (a) sends instructions under gateway by gateway controller and finishes.
Further, in the step (a), described gateway controller issues increase, moves or modify instruction is provided with the terminal monitoring attribute to described gateway.
With respect to prior art, the present invention need not increase network element by the intra-gateway realization monitoring service that continues; By definition terminal type, ownership monitoring group, eavesdropping target and prison hearer and by the attributes such as Media Stream relation between the prison hearer, can support to supervise the hearer and by between the prison hearer one to one, the monitoring relation of one-to-many, many-one, multi-to-multi etc., allow the prison hearer to come across in the context than the hearer is early by prison, can support a terminal to be supervised between hearer and the general terminal and carry out role's switching, make the setting of monitoring service more flexible at prison hearer, quilt.
Description of drawings
Fig. 1 is the schematic diagram that the outer means of prior art gateway realize listening mode.
Fig. 2 realizes the schematic diagram of listening mode for continuing in the prior art gateway, in wherein supervising the hearer and being supervised the different context in hearer office.
Fig. 3 realizes the schematic diagram of listening mode for continuing in the prior art gateway, wherein use topology to describe to monitor and concern example.
Fig. 4 is provided with terminal for monitoring the handling process schematic diagram of terminal for the embodiment of the invention.
Fig. 5 is provided with terminal for being monitored the handling process schematic diagram of terminal for the embodiment of the invention.
Fig. 6 is provided with the handling process schematic diagram that terminal is general terminal for the embodiment of the invention.
Fig. 7 sets up the process schematic diagram of example one for monitoring service of the present invention, is wherein occurred prior to the prison hearer by the prison hearer.
Fig. 8 sets up the process schematic diagram of example two for monitoring service of the present invention, wherein supervises the hearer prior to being occurred by the prison hearer.
Fig. 9 is the process schematic diagram of monitoring service conversion example one of the present invention, and wherein general terminal is transformed to by prison hearer or prison hearer.
Figure 10 wherein supervises the conversion of hearer's monitoring attribute for the process schematic diagram of monitoring service conversion example two of the present invention.
Annotate: among above Fig. 1-Fig. 3 and Fig. 7-Figure 10, circle is represented the terminal in the context, carries out mark with T1, T2, T3 and P.
Embodiment
The present invention is the implementation method of the professional control of real-time listening on a kind of circuit domain gateway, wherein supervising the hearer appears on the gateway with the form of terminal, monitor terminal and be placed in the same context by the monitoring terminal, the division that when setting up or revising, monitoring attribute is set and monitors group to terminal, the monitoring group is simultaneously as the eavesdropping target who supervises the hearer, monitoring group comprises a plurality of when being monitored terminal, and each is monitored terminal and has consistent monitoring with the monitoring terminal of monitoring this group and concern.The sphere of action of monitoring group is a context, and each monitoring group has a unique sign, and the monitoring group that different contexts has like-identified is considered as different monitoring groups.
Be to realize the inventive method, need on terminal, dynamically set a property and determine to monitor relation, and will be by the corresponding media stream duplication of prison hearer to monitoring on the terminal according to the relation of monitoring, thereby realize monitoring service.
The embodiment of the invention serves as that monitoring service is realized on the basis with agreement H.248/Megaco, H.248/Megaco agreement is got in touch gateway controller and media gateway, it is called out by the descriptions such as topological relation that define terminal in terminal (Termination) and attribute, context (Context) and attribute thereof, the context, is the MGCP of present main flow.
The present invention is also applicable to the MGCP agreement.
The mode that monitoring attribute is set in terminal has a variety of, and the embodiment of the invention uses the mode that sends instructions under the gateway controller to be provided with.Also can manually be provided with by the back-stage management instrument that uses gateway waits other means that monitoring attribute is set.When a practical business begins, generally according to the static configuration of each terminal is given out a contract for a project the attribute of each terminal in this context is set by gateway controller, also can be provided with in real time by administrative staff.
Gateway controller issues H.248/Megaco to instruct to gateway by the interface with gateway it is controlled.For issuing the terminal monitoring attribute to gateway, need bag of definition (notion of bag and define can with reference to agreement H.248/Megaco) by this means.This package definition the attribute and the process of some terminals.These attributes comprise:
Terminal type (role): comprise monitoring terminal (interceptor), monitored terminal (interceptee) and general terminal (common).
Ownership monitoring group (iid): this attribute is only effective to being monitored terminal, and it is the set of a monitoring group ID, uses the tabulation expression.Monitored terminal for one and can be belonged to a plurality of different monitoring groups simultaneously.
Eavesdropping target (dest): this attribute is only effective to monitoring terminal, and it is the set of a monitoring group ID, uses the tabulation expression.Monitoring group among the eavesdropping target can contain one, a plurality of or do not monitored terminal.
Media Stream direction (dir): this attribute is only effective to monitoring terminal, is used to define the media stream duplication of being monitored which direction of terminal is arrived this monitoring terminal, and direction can be: send (send), receive (receive) and mix (combine).To a monitoring terminal, the terminal of being monitored that all the monitoring groups among its eavesdropping target are comprised all needs according to the Media Stream direction attribute of this monitoring terminal corresponding media stream duplication to be monitored on terminal to this.
Duplicating only carrying out in same context of Media Stream, promptly Media Stream duplicates can not step up hereinafter and carries out.
This bag has also defined process and its subsequent operation of the monitoring service attribute that how to use this bag that terminal is set.
It is as follows to use ITU-T cannonical format H.248.1 to define this bag:
Package Name:Lawful Interception Package (Lawful Interception bag)
PackageID：LI(0x9001)
Description: this package definition the relevant attribute of terminal monitoring, comprising: terminal type, ownership monitoring group, eavesdropping target, prison hearer with by the relation of the Media Stream between the prison hearer, can determine to monitor the relation between terminal and the quilt monitoring terminal thus.
Version：1
Extends：None
1.Properties
1.1Property?Name：
PropertyID：role(0x0001)
Description: this attribute definition terminal type, comprise and monitor terminal (interceptor), monitored terminal (interceptee) and general terminal (common).
Type：Enumeration
Possible?values：
＂interceptor＂(0x0001)
＂interceptee＂(0x0002)
＂common＂(0x0003)
Defined?in：Local?Control?Descriptor
Characteristics：Read/Write
1.2Property?Name：
PropertyID：iid(0x0002)
Description: this attribute definition ownership monitoring group attribute, only effective to being monitored terminal, be the set of a monitoring group ID, use the tabulation expression.
Type：Sub-list?of?integer
Possible?values：Any?positive?integers
Defined?in：Local?Control?Descriptor
Characteristics：Read/Write
1.3Property?Name：
PropertyID：dest(0x0003)
Description: this attribute definition eavesdropping target's attribute, only effective to monitoring terminal, be the set of a monitoring group ID, use the tabulation expression, the monitoring group among eavesdropping target who monitors terminal can contain one, a plurality of or do not monitored terminal.
Type：Sub-list?of?integer
Possible?values：Any?positive?integers
Defined?in：Local?Control?Descriptor
Characteristics：Read/Write
1.4?Property?Name：
PropertyID：dir(0x0004)
Description: this attribute definition Media Stream direction attribute, all that are used for defining its eavesdropping target's monitoring group of conduct that should copy on this monitoring terminal are monitored the direction of the Media Stream of terminal, and direction can be: send (send), receive (receive) and mixing (combine).This attribute is only effective to monitoring terminal.
Type：Enumeration
Possible?values：
＂send＂(0x0001)
＂receive＂(0x0002)
＂combine＂(0x0003)
Defined?in：Local?Control?Descriptor
Characteristics：Read/Write
2.Events
Do not have
3.Signals
Do not have
4.Statistics
Do not have
5.Procedures
Gateway controller can increase (Add), move in (Move) or modification (Modify) order and use this to wrap the monitoring attribute that terminal is set.It is set to be monitored terminal to gateway controller by the role attribute of a terminal is changed to interceptee, simultaneously its iid attribute should be set in same local controldescriptor.It is set to monitor terminal to gateway controller by the role attribute of a terminal is changed to interceptor, should in same local control descriptor its dir attribute be set simultaneously.Its dest attribute can be provided with in same local controldescriptor with above two attributes, also can be provided with when follow-up the needs.Monitoring group in the dest attribute can be an empty group, is promptly monitored terminal attaching in this monitoring group without any one in the current context.
Should with the transmission media stream duplication of being monitored terminal to monitor oneself and the dir attribute be on the monitoring terminal of send.The receiving media stream that to be monitored terminal copy to monitor oneself and the dir attribute be on the monitoring terminal of receive.To be monitored the transmission Media Stream of terminal and receiving media stream all copy to monitor oneself and the dir attribute be on the monitoring terminal of combine.
After a terminal is set to monitor terminal, then do not consider relative all topologys when continuing, it is invalid promptly will to be regarded as about its topology, but not deleted, this terminal will be regarded as an isolated terminal.Monitored terminal or general terminal if terminal puts back, then still need to continue according to these topologys.
Please refer to Fig. 4 to Fig. 6, gateway receives after gateway controller uses the control command of above-mentioned bag, and then terminal type and the respective attributes that sets according to instruction operated.
As shown in Figure 4, a terminal attribute is set for monitoring terminal and realizing that the method for real-time listening business may further comprise the steps:
Whether the attribute of at first judging this terminal has been to monitor terminal (step 401);
If this terminal has been the monitoring terminal, then explanation setting this time is the monitoring attribute of this monitoring terminal of change, promptly revises its eavesdropping target and/or Media Stream direction, should at first stop the media stream duplication (step 403) based on original monitoring relation this moment; Then new monitoring attribute is noted (step 406); At last all of searching in the same context according to the monitoring group ID in eavesdropping target's attribute belong to this monitoring group, promptly need by the terminal of being monitored of its monitoring, and duplicate the medium of being monitored terminal according to Media Stream direction attribute and flow to this monitoring terminal (408);
If this terminal originally was not to monitor terminal, is general terminal or is monitored terminal.Then at first disconnect on this terminal continue (step 402) of carrying out according to topological relation and other-end; Judge then whether this terminal is monitored terminal (step 405) at present; If not, being general terminal, this moment, this terminal promptly became the monitoring terminal as long as write down the new monitoring attribute (step 407) of this terminal; If this terminal judges is formerly monitored terminal before this, then to stop the media stream duplication (step 404) on the monitoring terminal of monitoring it earlier; Write down the new monitoring attribute (step 407) of this terminal then; No matter whether this terminal was originally monitored terminal, after having write down the new monitoring attribute of this terminal, last all will be according to the same all needs hereinafter of eavesdropping target's attribute search by the terminal of being monitored of its monitoring, and duplicate the medium of being monitored terminal according to Media Stream direction attribute and flow to this monitoring terminal (step 408).
As shown in Figure 5, a terminal attribute is set for being monitored terminal and realizing that the method for real-time listening business may further comprise the steps:
Judge at first whether this terminal has been monitored terminal (step 501);
If this terminal has been monitored terminal, then explanation operation this time is its ownership monitoring group of change, at first should stop this terminal and monitor media stream duplication (step 505) on terminals to all; Revise its monitoring attribute then, promptly revise its ownership monitoring group (step 506); At last, search for that the same hereinafter all monitor the monitoring terminal of this terminal, and flow to above-mentioned (step 508) on the terminal of respectively monitoring according to the medium that corresponding Media Stream direction is duplicated this terminal;
If this terminal is not monitored terminal, judge then whether it is to monitor terminal (step 504); If this terminal is not to monitor terminal, be general terminal, need only the monitoring attribute of this terminal of record this moment, it is changed to by the monitoring terminal gets final product (step 507); If this terminal originally for monitoring terminal, then at first needs to stop all media stream duplications (step 502) on it; And recover to continue (step 503) according to topological relation and other-end; Write down the monitoring attribute of this terminal then, it is changed to is monitored terminal (step 507); At last, former which kind of terminal before this of this terminal no matter, to search for all that all monitor the monitoring terminal of this monitoring group in the same context according to ownership monitoring group ID, and flow to above-mentioned (step 508) on the terminal of respectively monitoring according to the medium that corresponding Media Stream direction is duplicated this terminal.
As shown in Figure 6, a terminal attribute is set is general terminal and realize that the method for real-time listening business may further comprise the steps:
Judge at first whether this terminal is general terminal (step 601), if, then without any need for operation;
If this terminal is not general terminal, then do different processing (602) according to its terminal type, if this terminal is monitored terminal, then explanation does not need it to be monitored again, as long as stop it to the media stream duplication (step 603) of monitoring terminal and this terminal type is set is general terminal (step 606); If this terminal, at first will stop the media stream duplication (step 604) on it originally for monitoring terminal, also to continue (step 605) then according to the topology that topological structure returns to other-end, promptly revert to the situation that continues of general terminal; At last, this terminal type being set is general terminal (step 606).
Below, in fact various method can also be arranged only for a kind of method of terminal attribute is set.Can directly carry out the setting of monitoring attribute by the back-stage management instrument of gateway as administrative staff to a terminal.Another kind method is: the fixed configurations of the external connection of gateway being carried out monitoring attribute in the gateway database.Be special-purpose monitor for police circuit as certain bar E1 or T1 access.Each time slot on then configurable this circuit is the prison hearer of the fixing a certain monitoring group of monitoring.When the terminal of the time slot correspondence on this circuit was added into context, gateway can first Query Database, obtained its monitoring attribute and was provided with.
Fig. 7 to Figure 10 is in identical context, the process schematic diagram of monitoring service foundation or conversion under the different situations, and solid line is a topological structure among the figure, dotted line is the flow direction of terminal room Media Stream.
Fig. 7 sets up the process schematic diagram of example one for monitoring service of the present invention, is wherein occurred prior to the prison hearer by the prison hearer.
Process I: two general terminal T1 and T2 are carrying out both sides' calling;
Process II: its terminal type is set for being monitored terminal on T1, ownership monitoring group be 1,2}, i.e. LI/role=interceptee, LI/iid={1,2};
Process III: increase the T3 terminal, and its terminal type is set for monitoring terminal, the eavesdropping target be that { 1,3} is copied to the Media Stream direction of monitoring terminal and is transmission, i.e. LI/role=interceptor, LI/dest={1,3}, LI/dir=send.At this moment, T3 has created default topology with T1 and T2 according to agreement, but and continue not according to it, but according to being provided with of monitoring attribute will comprise terminal T1 be under the jurisdiction of monitoring group 1 and 3 all monitored the transmission media stream duplication of terminal to T3.
Fig. 8 sets up the process schematic diagram of example two for monitoring service of the present invention, wherein supervises the hearer prior to being occurred by the prison hearer.
Process I: increase T3 terminal, and its terminal type is set for monitoring terminal, the eavesdropping target is that { 1,2} is copied to the Media Stream direction of monitoring terminal and is transmission, its LI/role=interceptor, LI/dest={1,2}, LI/dir=send;
Process II: increase the T2 terminal, default to general terminal, because therefore T3 will not continue for monitoring terminal;
Process III: increase the T1 terminal, default to general terminal, because therefore T3 only continues with T2 for monitoring terminal;
Process IV: its terminal type is set for being monitored terminal on T1, ownership monitoring group is { 1}, i.e. LI/role=interceptee, LI/iid={1}; Its terminal type is set for being monitored terminal on T2, ownership monitoring group is { 2}, i.e. LI/role=interceptee, LI/iid={2}.This moment belongs to the terminal T1 of different monitoring groups and the transmission Media Stream of terminal T2 will copy on the T3.
Fig. 9 is the process schematic diagram of monitoring service conversion example one of the present invention, and wherein general terminal is transformed to by prison hearer or prison hearer.
Process I: three general terminal T1, T2 and T3 are carrying out third-party call;
Process II: its terminal type is set on T1 for being monitored terminal, ownership monitoring group { 1}, i.e. LI/role=interceptee, LI/iid={1}, its terminal type is set for monitoring terminal on T3, the eavesdropping target is that { 1} is copied to the Media Stream direction of monitoring terminal and is transmission, i.e. LI/role=interceptor, LI/dest={1}, LI/dir=send disconnects T3 and other two terminals this moment according to the continuing of topology, and with the transmission media stream duplication of T1 to T3.
Figure 10 wherein supervises the conversion of hearer's monitoring attribute for the process schematic diagram of monitoring service conversion example two of the present invention.
Process I:T3 is monitoring the transmission Media Stream of T1, and wherein T1 goes up LI/role=interceptee, LI/iid={1}, the last LI/role=interceptor of T3, LI/dest={1}, LI/dir=send;
Process II: resetting the T3 attribute is LI/dir=combine, and transmission and reception (being the sending direction of the T2) medium that duplicate T1 this moment simultaneously flow on the T3.
The present invention need not increase network element by the intra-gateway realization monitoring service that continues; By definition terminal type, ownership monitoring group, eavesdropping target and prison hearer with by the attributes such as Media Stream relation between the prison hearer, can support to supervise the hearer and by between the prison hearer one to one, one-to-many, many-one, multi-to-multi etc. monitor and concern.
The present invention provides and allows the prison hearer to come across in the context than the hearer is early by prison, can set in advance empty monitoring and organize among prison hearer's the eavesdropping target, and set the Media Stream attribute of a relation of monitoring on the terminal.Monitor terminal in case occur the new quilt that belongs to this monitoring group in the context, can implement duplicating of Media Stream immediately, realize monitoring service.Can support a terminal to be supervised between hearer and the general terminal and carry out role's switching, make the setting of monitoring service more flexible at prison hearer, quilt.
The prison hearer is appeared in the same context with supervising the form of hearer with terminal, and monitoring relation does not therebetween also exceed context.This meets the essence spirit of context notion in the agreement H.248/Megaco.
Claims (10)
1, the professional implementation method of a kind of real-time listening control, it may further comprise the steps:
(a) monitoring attribute and the notification gateway of terminal in the setting context, in monitoring attribute, specify terminal type for monitoring terminal, being monitored terminal or general terminal, and for being monitored the monitoring group that terminal is provided with ownership, for monitoring monitoring group and the Media Stream direction that the terminal setting will be monitored;
(b) after gateway is received this notice, corresponding terminal is provided with according to described monitoring attribute;
(c) after accomplishing the setting up, gateway is searched for all the monitoring terminals in this context and is monitored terminal, and duplicate the medium of being monitored terminal that belong to its monitoring group that will monitor according to the Media Stream direction that each monitors the terminal setting and flow to and respectively monitor terminal, realize monitoring control.
2, implementation method as claimed in claim 1 is characterized in that: comprising one or more terminals of being monitored for monitoring the set monitoring group that will monitor of terminal, should the monitoring group be empty group maybe; Monitoring group comprises a plurality of when being monitored terminal, and each is monitored terminal and has consistent monitoring with the monitoring terminal of monitoring this group and concern.
3, implementation method as claimed in claim 1 or 2, it is characterized in that: monitored terminal for one and belong to a plurality of different monitoring groups simultaneously, the sphere of action of described monitoring group is a context, each monitoring group has a unique sign, and the monitoring group that different contexts has like-identified is considered as different monitoring groups.
4, implementation method as claimed in claim 1, it is characterized in that: in the step (b), be the monitoring terminal if pre-set a terminal type, and through judging that it was to monitor terminal originally, then stop media stream duplication, then new monitoring attribute is noted based on original monitoring relation.
5, implementation method as claimed in claim 1, it is characterized in that: in the step (b), if pre-set a terminal type for monitoring terminal, and through judge its former be not to monitor terminal, then disconnect on this terminal according to continuing that topological relation and other-end carry out, former type to this terminal is judged again, if the former type of this terminal is general terminal, then writes down the new monitoring attribute of this terminal; If the former type of this terminal is monitored terminal, then stop the media stream duplication on its monitoring terminal of monitoring after, write down the new monitoring attribute of this terminal again.
6, implementation method as claimed in claim 1, it is characterized in that: in the step (b), if pre-set a terminal type for being monitored terminal, and monitored terminal through judging this terminal, after then stopping this terminal and monitoring media stream duplication on terminals, revise the ownership monitoring group of this terminal to all.
7, implementation method as claimed in claim 1, it is characterized in that: in the step (b), if pre-set a terminal type for being monitored terminal, and do not monitored terminal through judging that this terminal is former, this terminal type is judged again, if the former type of this terminal is general type, then write down the monitoring attribute of this terminal; If the former type of this terminal, then stops all media stream duplications on it for monitoring terminal, and recover to continue, write down the monitoring attribute of this terminal again with other-end according to topological relation.
8, implementation method as claimed in claim 1, it is characterized in that: in the step (b), if to pre-set a terminal type is general terminal, and through judging that this terminal type monitored terminal, then stop it to the media stream duplication of monitoring terminal and this terminal type is set is general terminal; If through judging that this terminal type was to monitor terminal originally, then stop the media stream duplication on it, the topology that returns to other-end according to topological structure continues then, and this terminal type is set is general terminal.
9, implementation method as claimed in claim 1 is characterized in that: step (a) sends instructions under gateway by gateway controller and finishes.
10, implementation method as claimed in claim 9 is characterized in that: in the step (a), described gateway controller issues increase, moves or modify instruction is provided with the terminal monitoring attribute to described gateway.
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| CNB2006100578943A CN100473026C (en) | 2006-03-03 | 2006-03-03 | Method for controlling realtime monitor service |
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| CNB2006100578943A CN100473026C (en) | 2006-03-03 | 2006-03-03 | Method for controlling realtime monitor service |
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| CN101030893A CN101030893A (en) | 2007-09-05 |
| CN100473026C true CN100473026C (en) | 2009-03-25 |
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| CN101448280B (en) * | 2008-02-20 | 2010-12-29 | 中兴通讯股份有限公司 | Method for intercepting switch events in WiMAX system |
| DK2332309T3 (en) * | 2008-07-24 | 2019-02-25 | Ericsson Telefon Ab L M | Legal capture of targets in a Proxy-Mobile-Internet-Protocol network |
| CN103546573B (en) * | 2013-10-30 | 2017-10-17 | 北京荣之联科技股份有限公司 | A kind of method and apparatus to the real-time monitoring of text editing |
| CN105681255A (en) * | 2014-11-18 | 2016-06-15 | 中兴通讯股份有限公司 | Method and device for sending and receiving media stream data between network elements |
| CN108650425B (en) * | 2018-05-15 | 2021-03-19 | 中国联合网络通信集团有限公司 | Monitoring method and monitoring system |
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Effective date of registration: 20170817 Address after: Huang Jia Zhen Yan Jia Cun 253600 Shandong city of Leling province No. 204 Patentee after: Chen Hongjuan Address before: 518057 Nanshan District high tech Industrial Park, Guangdong, South Road, science and technology, ZTE building, legal department Patentee before: ZTE Corporation |
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