CN101222500B - Correlation method for video monitor - Google Patents
Correlation method for video monitor Download PDFInfo
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- CN101222500B CN101222500B CN2008100047178A CN200810004717A CN101222500B CN 101222500 B CN101222500 B CN 101222500B CN 2008100047178 A CN2008100047178 A CN 2008100047178A CN 200810004717 A CN200810004717 A CN 200810004717A CN 101222500 B CN101222500 B CN 101222500B
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Abstract
The present invention relates to a correlation method for video interception, comprising the following steps that: A. control is set to a controlled user according to interception requirements; B. when the controlled user carries out communication, a video data packet of the controlled user is transmitted to a legal interception center LIC, and the video data packet comprises interception mark information; C. the legal interception center extracts and carries out comparative analysis to upstream data and downstream data in the video data packet according to interception standards, and if the upstream data is matched with the downstream data, the upstream data and the downstream data are correlated. The method realizes the correlation to video interception, which is simple and reliable.
Description
Technical field
The present invention relates to a kind of correlating method of video monitor, relate in particular to the correlating method of a kind of video monitor in the wireless network video session SM service monitoring technology.
Background technology
Comprehensive monitoring system of future generation, can be used as legal monitor centers (Lawful InformationCenter, be called for short LIC) or Lawful interception gateway (Lawful Interception Gateway, be called for short LIG) use, be used for setting up the unified network of monitoring that the miscellaneous service network is comprehensively monitored.The business network that can serve for it comprises at present: traditional PSTN (Public SwitchedTelephone Network, be called for short PSTN), next generation network (Next Generation Network is called for short NGN), the mobile communications network of 2G, 3G mobile communications network etc.
In the 3G mobile communications network, video telephone is to drive the key that the 3G business is carried out, and is the only feasible program that wireless network video session business can be provided at present based on Circuit-switched H.324M/3G-324M agreement.And in the monitoring framework that extensively adopts at present, Intercept related information (InterceptRelated Information, be called for short IRI) and intercept communications content (Communication Content, be called for short CC) be separated from each other, be transferred to LIC by controlled network element by different interfaces and handle.Like this, in video monitor H.324M,, just need to realize relevant up-downgoing video data association if will realize video monitor to controlled net element communication opposite end.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of correlating method of video monitor, and described method has solved the technical problem of relevant up-downgoing video data association in realizing the video monitor of controlled net element communication opposite end.
In order to address the above problem, the invention provides a kind of correlating method of video monitor, comprise the steps:
A, according to listen requirement, controlled user is established control;
B, when controlled user communicates, described controlled user's video packets of data is transferred to legal monitor centers LIC, this video packets of data includes monitor sign information;
C, described legal monitor centers are extracted upstream data and the downlink data in the described video packets of data and are carried out comparative analysis according to the monitoring standard, and upstream data and downlink data mate as described, then related described upstream data and downlink data.
Further, to contain monitor sign be NE ID and call identification CallID to described monitor sign packets of information.
Further, described step C comprises the steps:
After the processing module of legal monitor centers receives described video packets of data, extract corresponding header packet information, give the information header decoder processes; Described information header decoder extracts upstream data and downlink data in the described video packets of data according to the monitoring standard, and deposits described data in the database preservation.
Further, under Chinese Industrial Standards (CIS), comprise the steps: among the described step B
During controlled telex network, described monitor sign information includes Intercept related information and Content of Communication message;
Include monitor sign and call identification in the described Content of Communication message, be transferred to legal monitor centers by the Content of Communication interface;
Include monitor sign and the call identification information relevant in the described Intercept related information, be transferred to legal monitor centers by the Intercept related information interface with described Content of Communication message.
Further, described step C comprises the steps:
The legal monitor centers decoder, according to Chinese Industrial Standards (CIS), the uplink monitoring sign and up call sign, descending monitor sign and the downlink call that extract described controlled telex network content-message identify, and the monitor sign of Intercept related information, main call identification and by call identification; If the monitor sign of the uplink monitoring of described Content of Communication message sign, descending monitor sign and Intercept related information is identical, and described up call sign is identical with main call identification and the downlink call sign is identical with called call identification or up call sign and and downlink call sign identical and calling by call identification identify identical, then related upstream data and downlink data.
Further, described video is video H.324M.
Further, under ETSI's etsi standard, described step B comprises the steps:
During controlled telex network, include monitor sign and call identification in Content of Communication message, described monitor sign and call identification are transferred to legal monitor centers by the Content of Communication interface.
Further, under ETSI's etsi standard, described step C comprises the steps:
The legal monitor centers decoder, extract uplink monitoring sign and up call sign, descending monitor sign and the downlink call sign of described controlled telex network content-message, if the uplink monitoring of described Content of Communication message sign is identical with descending monitor sign, and described up call sign is identical with the downlink call sign, then related upstream data and downlink data.
Use the correlating method of video monitor of the present invention, adopt the method for the message identification coupling group calls in several of determining to be mutually related, and then the two-path video data can be associated, give player, so just realized the association to video monitor, method is easy to be reliable.
Description of drawings
Figure 1 shows that the schematic flow sheet of the correlating method of video monitor of the present invention.
Figure 2 shows that the correlating method handling process schematic diagram of video monitor under the Chinese Industrial Standards (CIS).
Figure 3 shows that the correlating method handling process schematic diagram of video monitor under the etsi standard.
Embodiment
The correlating method of a kind of video monitor of the present invention relates generally to the method that auto-associating is called out in the up-downgoing of wireless network video monitor.Described method as shown in Figure 1, comprises the steps: according to listen requirement, and controlled user is established control; When controlled user communicated, its communication data (containing monitor sign is that NE ID and call identification are CallID) was transferred to legal monitor centers LIC; Described legal monitor centers is extracted upstream data and the downlink data in the described video packets of data and is carried out comparative analysis according to the monitoring standard, and upstream data and downlink data mate as described, then related described upstream data and described downlink data.
When operating desk will carry out real-time video when monitoring,,, from decoder or database, extract corresponding information if type video H.324M adopts relation mechanism according to current type of call.Comprise up-downgoing monitor sign, call identification and relevant information terminal monitoring sign calling sign, information such as called call identification.With the monitor sign in up-downgoing monitor sign and the relevant information relatively, if the three is identical, compare call identification again, if up call sign is identical with calling sign in the relevant information and the downlink call sign identical with called call identification in the relevant information (or the up call sign is identical with called call identification in the relevant information and downlink call identify with relevant information in calling identify identical) can determine that described up call and downlink call two paths of data are the video call data that are associated, as a pair of H.324M video call that is associated, give the video player broadcast of decoding, video monitor when realizing to calling both sides.
When operating desk will carry out playback to video data stored, will be directly relevant information be proposed from lane database, to determine the data that are associated to send request to storage server then according to the method for real-time listening comparison, related storage data are play in request.By storage server data are issued player, realize the video association.
Because ETSI's (European Telecommunications SdandardsInstitute is called for short TSI) standard and Chinese Industrial Standards (CIS) have bigger difference, and two kinds of standards are adopted different treatment mechanisms, realize the association of video monitor.Illustrate respectively below at two kinds of substandard implementations.
Figure 2 shows that the present invention monitors substandard realization flow schematic diagram in China.Present embodiment is an example with China's monitoring standard, to comprehensively monitoring based on video media business H.324M, to carry out analyzing and processing at listening center from the controlled user media information that network obtains, realize the calling and called both sides video association that controlled user video is monitored.Described video media comprises audio frequency.Concrete technical scheme is as follows:
Step 1:, controlled user is established control, promptly according to listen requirement, controlled user is carried out necessary configuration, make this user in the monitoring scope, and can obtain relevant user information, so that realize controlled user's communications is monitored so that realize this user's communications is monitored.
Step 2: when controlled user communicated, the CC information of the controlled user in the communication was transferred to LIC by the CC interface, and IRI information is transferred to LIC by the IRI interface.In CC information, contain monitor sign (NE ID) and call identification information such as (Call ID); Contain information such as monitor sign relevant and call identification in the IRI information with CC information.
Step 3: after the Content of Communication data in the controlled user's data bag that LIC monitoring system CC processing module receives, extract corresponding header packet information, give the information header decoder processes; Include two paths of data in the described packet, i.e. uplink monitoring sign (NE ID) and up call sign, descending monitor sign (NE ID) and downlink call sign.After LIC monitoring system IRI processing module received the communication relevant information, promptly controlled user's control messages data were extracted message body information, proposed to give decoder processes for the information of described information header decoder processes from described information; Described control messages data comprise monitor sign, i.e. NE ID, and calling sign (CallID1) and called call identification (callID2).
Step 4: described information header decoder is monitored standard according to China, extract the net element information of communication up-downgoing, the uplink monitoring sign and the up call that are controlled user identify, and this controlled user's descending monitor sign and downlink call sign, and deposit this information in the database preservation.Simultaneously, described information header decoder is monitored standard criterion according to China, extract described communication relevant information, be controlled user's network element control messages data, it comprises monitor sign (NE ID), calling sign (CallID1) and called call identification (callID2), deposit this information in database and preserve, use for video data is related.
Step 5: the information of obtaining in the step 4 is compared analysis.If, up NE ID in the net element information (uplink monitoring sign), descending NE ID (descending monitor sign) are all identical with NE ID (monitor sign) in the relevant information, and, up call sign in the net element information is identical with the calling sign (CallID1) in the relevant information, downlink call sign in the net element information is identical with the called call identification (CallID2) in the relevant information, then this up call and this downlink call are associated call, should be as the data processing that is mutually related.
Step 6: the two paths of data that will be mutually related is given video decoder decodes, plays, video monitor when realizing communicating pair.
For etsi standard, do not need the IRI resume module, only need up-downgoing monitor sign and the call identification that extracts in the Content of Communication compared.If the uplink monitoring sign is identical with descending monitor sign, and the up call sign is identical with the downlink call sign, is the one group of video call that is mutually related, and need handle as associated call.Other handle with Chinese Industrial Standards (CIS) basic identical, do not repeat them here.
Figure 3 shows that the realization flow schematic diagram of the present invention under etsi standard.Concrete technical scheme is as follows:
Step 1: according to listen requirement, controlled user is established control, that is, controlled user is carried out necessary configuration, make this user in the monitoring scope, and can obtain relevant user information, so that realize controlled user's communications is monitored,
Step 2: when controlled user communicated, the CC message of the controlled user in the communication was transferred to LIC by the CC interface, had wherein comprised monitor sign (NE ID) and call identification information such as (Call ID).
Step 3: LIC monitoring system CC processing module is extracted corresponding header packet information after receiving Content of Communication data in the controlled user's data bag, gives the information header decoder processes; Include two paths of data in the described packet, i.e. uplink monitoring sign (NE ID) and up call sign, descending monitor sign (NE ID) and downlink call sign.
Step 4: described information header decoder is monitored standard according to China, extract the net element information of communication up-downgoing, be controlled user's uplink monitoring sign and up call sign, and this controlled user's descending monitor sign and downlink call sign, and deposit this information in database and preserve, use for video data is related.
Step 5: the information of obtaining in the step 4 is compared analysis.If, up NE ID in the net element information (uplink monitoring sign) is identical with descending NE ID (descending monitor sign), it is number identical promptly to go up NE ID number and descending NE ID, and, up call sign in the net element information is identical with the downlink call sign, be that the up call identification number is identical with the downlink call identification number, then this up call and this downlink call are associated call, should be as the data processing that is mutually related.
Step 6: the two paths of data that will be mutually related is given Video Decoder and is raised the price, and plays, video monitor when realizing communicating pair.
In sum, adopt the method for the message identification coupling group calls in several of determining to be mutually related, and then the two-path video data are associated, give player, so just realized association video monitor.
Claims (7)
1. the correlating method of a video monitor comprises the steps:
A, according to listen requirement, controlled user is established control;
B, when controlled user communicates, described controlled user's video packets of data is transferred to legal monitor centers LIC, this video packets of data includes monitor sign information, it is NE ID and call identification CallID that described monitor sign packets of information contains monitor sign;
C, described legal monitor centers are extracted upstream data and the downlink data in the described video packets of data and are carried out comparative analysis according to the monitoring standard, and upstream data and downlink data mate as described, then related described upstream data and downlink data.
2. the method for claim 1 is characterized in that, described step C comprises the steps:
After the processing module of legal monitor centers receives described video packets of data, extract corresponding header packet information, give the information header decoder processes; Described information header decoder extracts upstream data and downlink data in the described video packets of data according to the monitoring standard, and deposits described data in the database preservation.
3. the method for claim 1 is characterized in that, comprises the steps: among the described step B
During controlled telex network, described monitor sign information includes Intercept related information and Content of Communication message;
Include monitor sign and call identification in the described Content of Communication message, be transferred to legal monitor centers by the Content of Communication interface;
Include monitor sign and the call identification information relevant in the described Intercept related information, be transferred to legal monitor centers by the Intercept related information interface with described Content of Communication message.
4. method as claimed in claim 3 is characterized in that described step C comprises the steps:
The legal monitor centers decoder, the uplink monitoring sign and up call sign, descending monitor sign and the downlink call that extract described controlled telex network content-message identify, and the monitor sign of Intercept related information, main call identification and by call identification; If the monitor sign of the uplink monitoring of described Content of Communication message sign, descending monitor sign and Intercept related information is identical, and described up call sign is identical with main call identification and the downlink call sign is identical with called call identification or up call sign and and downlink call sign identical and calling by call identification identify identical, then related upstream data and downlink data.
5. as claim 3 or 4 described methods, it is characterized in that described video is video H.324M.
6. the method for claim 1 is characterized in that, described step B comprises the steps:
During controlled telex network, include monitor sign and call identification in Content of Communication message, described monitor sign and call identification are transferred to legal monitor centers by the Content of Communication interface.
7. method as claimed in claim 6 is characterized in that described step C comprises the steps:
The legal monitor centers decoder, extract uplink monitoring sign and up call sign, descending monitor sign and the downlink call sign of described controlled telex network content-message, if the uplink monitoring of described Content of Communication message sign is identical with descending monitor sign, and described up call sign is identical with the downlink call sign, then related upstream data and downlink data.
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| CN2008100047178A CN101222500B (en) | 2008-01-23 | 2008-01-23 | Correlation method for video monitor |
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| CN2008100047178A CN101222500B (en) | 2008-01-23 | 2008-01-23 | Correlation method for video monitor |
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| CN101222500B true CN101222500B (en) | 2011-04-20 |
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| WO2014169470A1 (en) * | 2013-04-19 | 2014-10-23 | Telefonaktiebolaget L M Ericsson(Publ) | Method and switch for lawful interception |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101009603A (en) * | 2006-01-26 | 2007-08-01 | Ut斯达康通讯有限公司 | A monitoring method and device in the wireless access network |
| CN101009899A (en) * | 2006-01-26 | 2007-08-01 | Ut斯达康通讯有限公司 | A monitoring method and device based on the air interface of the wireless communication system |
| CN101141761A (en) * | 2007-09-30 | 2008-03-12 | 华为技术有限公司 | Monitoring method, system and device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101009603A (en) * | 2006-01-26 | 2007-08-01 | Ut斯达康通讯有限公司 | A monitoring method and device in the wireless access network |
| CN101009899A (en) * | 2006-01-26 | 2007-08-01 | Ut斯达康通讯有限公司 | A monitoring method and device based on the air interface of the wireless communication system |
| CN101141761A (en) * | 2007-09-30 | 2008-03-12 | 华为技术有限公司 | Monitoring method, system and device |
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