CN101198011B - Method for transmitting condition receiving information in mobile multimedia broadcasting network - Google Patents
Method for transmitting condition receiving information in mobile multimedia broadcasting network Download PDFInfo
- Publication number
- CN101198011B CN101198011B CN2006101611440A CN200610161144A CN101198011B CN 101198011 B CN101198011 B CN 101198011B CN 2006101611440 A CN2006101611440 A CN 2006101611440A CN 200610161144 A CN200610161144 A CN 200610161144A CN 101198011 B CN101198011 B CN 101198011B
- Authority
- CN
- China
- Prior art keywords
- terminal
- mobile communication
- condition
- information
- user
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention relates to a conditional message reception transmission method in a mobile multimedia broadcasting network. The mobile multimedia broadcasting network comprising a mobile communication interface system/module is characterized in that: the method comprises the following steps: (1) the category of a user terminal is defined and the number of the terminal category is recorded concerning a mobile phone terminal with communication function; (2) an encrypted service key is transmitted to the mobile communication interface system/module if the user terminal is a mobile phone terminal when a conditional reception message is needed to transmitted to the user terminal; (3) the service key is transmitted to the terminal through the mobile communication interface system/module according to the recorded number of the mobile phone terminal; (4) the mobile phone terminal descrambles a transmission service stream receipted from the broadcasting network and obtains a service message according to the conditional message after receiving the conditional message.
Description
Technical field
The present invention relates to the communications field, particularly the method for transmitting condition receiving information in a kind of mobile media broadcasting network of filed of mobile multimedia broadcasting.
Background technology
Along with the development of digital television techniques, spectators can be in the face of the selection of increasing digital television program.And the broadcasting dealer requires that then the user is collected certain license fee and uses owing to the increase of cost of investment.Condition to be accepted system and in order satisfying some broadcast service to be implemented system of access control.The condition reception technique is the most typical application of contemporary cryptology at digital TV field, is that the core technology of digital TV encryption control guarantees, for the operation of Digital Television provides the necessary technology means; It uses various digital technologies to handle by the scrambling to program, makes and has only authorized user just can watch (listening) by scrambled program, can realize the paid service of Digital Television (audio frequency) broadcast system.
Existing Digital Television neck condition receives three layers of key mechanism of general employing the transmission program is encrypted, condition receiving system key factor under this mechanism mainly comprises control word (CW), Entitlement Control Message (ECM) and Entitlement Management Message (EMM), also a guy's distributing key.
In the environment of digital video signal, the scrambling operation is controlled by a scrambling control word to finish, and the receiving terminal side can synchronously be recovered to disturb the serial at random of use by control word and be carried out descrambling to disturbing vision signal.The data of control word after the business cipher key encryption and after the scrambling together send, and decipher controlled word with business cipher key in user's receiving course, produce descrambling series by control word and are decrypted.
The condition that Entitlement Control Message ECM obtains after to be business cipher key to control word and Control Parameter encrypt receives information, and the decoder of user side could controlled word only after obtaining business cipher key prevailing for the time being in force, thereby realizes the data descrambling.
EMM is that the condition that obtains after SAS Subscriber Authorization System is encrypted business cipher key with distributing key receives information; The transmission of business cipher key can be to be solidificated in by modes such as smart cards to transmit in the chip, also can be to add crammed safety channel by authoring system with distributing key to pass to the user, realizes by the EMM Entitlement Management Message.At receiving terminal, decoder at first will be deciphered EMM with distributing key, obtains business cipher key, with business cipher key ECM is deciphered controlled word and Control Parameter then, could be to the data descrambling.
Distributing key generally is to offer the user by smart card, and distributing key is solidificated in the smart card, and with the encrypted form storage, the user need provide password can decipher use.
User terminal receives that these conditions receive information, according to the individual distributing key that is solidificated in terminal or smart card, solve product key, business cipher key and control word etc. more according to this; If the user has the mandate of watching program, will solve CW expressly, and transmit and receive descrambling equipment and finish descrambling work program, just can normally watch program.
It is the mode that issues by unidirectional broadcast network that traditional Mobile Multimedia Broadcasting or Digital Television receive message transmission to condition, promptly after the condition reception information encryption and the multiplexing together back of video/audio is issued by radio network with transport stream; For the user who protects new access can in time obtain authorized user message, must take the radio network bandwidth of a large amount of preciousnesses circularly at the broadcast channel distributing authentication information, increased extra expense; In addition,, service authorization information need be broadcast again, also more extra bandwidth will be taken because user's complaint or application are initiatively authorized.Thisly all adopt broadcast mode to issue to all authorized user messages, the mode that take and total number of users, the business of bandwidth are carried out is closely related, number of users is many more, class of business and set meal are many more, it is long more that authorization message is issued to the shared broadcast channel bandwidth of the user terminal time big more, that authorize, is unfavorable for carrying out of broadcast operator business.
Summary of the invention
The object of the present invention is to provide the method for transmitting condition receiving information in a kind of mobile media broadcasting network, by this method, along with the number that uses the mobile multimedia handset terminal use increases, can reduction condition reception information issue the taking of broadcast bandwidth, guarantee the reliable transmission of authorization message.
For achieving the above object, the present invention takes following technical scheme:
The method of transmitting condition receiving information in a kind of mobile media broadcasting network, described mobile media broadcasting network comprises mobile communication interface system/module, it is characterized in that, this method comprises the steps:
(1) determines type of user terminals,, write down the number of this Terminal Type for cell phone type terminal with mobile communication function;
(2) at needs when certain user terminal transmission condition receives information, if this user terminal is the cell phone type terminal, then the business cipher key of encrypting is sent to described mobile communication interface treatment system/module by interface;
(3), the business cipher key of described encryption is sent to this terminal by described mobile communication interface system/module according to the number of this cell phone type terminal of described record.
Further, said method also comprises:
(4) after described cell phone type terminal receives this condition reception information,, the transmitting business stream that receives is carried out descrambling from radio network, obtain business information according to this conditional information.
In the above-mentioned steps (1), when opening an account, determine the classification of this user's terminal, and preserve the number of cell phone type terminal to the user by broadcast operator.
In the above-mentioned steps (2), when the service authority change takes place in described cell phone type terminal use, Subscriber Management System is with the authority notification condition receiving system of this terminal, condition receiving system generates the business cipher key of encrypting according to this user's authority, is sent to described mobile communication interface treatment system/module.
In the above-mentioned steps (2),, then described condition is received information and transmit by radio network with transport stream if this user terminal is not the multi-medium broadcasting receiving terminal with mobile communication function; The described multi-medium broadcasting receiving terminal that does not have mobile communication function solves condition and receives information from the transmitting business stream that radio network receives, receive information according to this condition, to the transport stream descrambling, obtains business information.
In the above-mentioned steps (3), described mobile communication interface system/module by the short message mode, is sent to this terminal with the business cipher key of described encryption, and described short message comprises special a short message type or an identification information; Described mobile communication interface system/module can require the mobile communication short-message system that receipt is provided, if do not receive receipt message at the appointed time or receive customer complaint, then this user terminal is resend the business cipher key of described encryption.
Described mobile communication interface system/module also can be passed through WAP Push, MMS, Email, and perhaps wireless packet data transmission means is sent to this terminal with the business cipher key of described encryption.
Method of the present invention realizes easy, utilizes mobile communications network that original condition is received message transmission and shunts, and has saved broadcast system transmission bandwidth and overhead; Security authentication mechanism and the reliable transmission mechanism of having utilized the mobile communications network user to insert in addition, the fail safe that has improved condition reception message transmission has increased the complexity that cracks, and has very big using value.
Description of drawings
Fig. 1 is the schematic diagram that the mobile multi-media broadcasting service condition receives message transmission
Embodiment
Method of the present invention is to pass through radio network, mobile communications network transmitting condition receiving information respectively according to the classification of user's receiving terminal, can reduction condition reception information issue taking broadcast bandwidth; Simultaneously the mobile communications network mode is issued, if not start of user terminal when distributing authentication information, because the reliable delivery mechanism of mobile communication itself could guarantee that also authorization message message is delivered to terminal.Simultaneously mobile phone terminal use transmission condition is received information, only need point-to-point once transmission, and do not need to resemble radio network, need circulation to broadcast repeatedly and the outer broadcast bandwidth resource of occupying volume.
Subscriber Management System is classified to the user, mainly be that to distinguish user receiving equipment be unidirectional multi-medium broadcasting receiving terminal (for example PMP, PDA or have the MP4/MP3 etc. of the multimedia receiving function) multi-medium broadcasting receiving terminal that still has mobile communication function (as mobile phone etc.), if the latter then when registered user's data, requires the phone number of recording user.
The front end authentication management system carries out preliminary treatment according to the change of customer service authority to service authorization, sends authorization requests by the Subscriber Management System interface to condition receiving system simultaneously, and class of subscriber attribute and phone number are provided.
After the head end conditional receiving system was received the authorization request message of Subscriber Management System, the condition that generates this user received information, judges the user terminal classification, if unidirectional multimedia receiver terminal user, condition receives information and transmits by radio network with transport stream; If the mobile phone terminal user then hands to mobile communication interface treatment system (module) to condition reception information, the short-message system by the mobile network is transferred to user terminal again.
Mobile phone terminal directly receives information according to this condition, and the transmitting business stream that receives from radio network carries out descrambling and obtains business information; The transmitting business stream that unidirectional mobile multimedia receiving terminal then receives from radio network solves condition and receives information, and the transport stream descrambling is obtained programme information.
Described condition receives information can be the business cipher key of encrypting, and this moment, fore-end generated the Entitlement Control Message of user terminal, and this information is sent to user terminal by radio network.
Above-mentioned mobile communication interface treatment system (module) can receive information by the short message issuing condition, also can adopt other mobile communications network mode, such as modes such as WAP Push, MMS, Email or wireless packet data transmission.
Fig. 1 is the schematic diagram that the mobile multi-media broadcasting service condition receives message transmission.Below in conjunction with accompanying drawing implementation method of the present invention is further described.
100 broadcast operator are when opening an account to the user, and the user provides the receiving terminal classification; If the cellphone subscriber need provide phone number, and be kept in the Subscriber Management System.
110 when subscriber arrearage, when supplementing or ordering, quitting the subscription of business etc. with money and producing service authority change incident, Subscriber Management System carries out preliminary treatment to user's authorization message, simultaneously by with the interface notification condition receiving system of condition receiving system need be to subscriber authorisation; Send in the subscriber data message of condition receiving system and carry class of subscriber attribute and phone number, service authority information etc.
200 condition receiving systems generate the business cipher key of encrypting according to the customer service authority information; Condition receiving system is differentiated user terminal attribute classification, if mobile phone terminal is then passed to short message interface processing module (system) to the business cipher key of encrypting by interface.
210 short message interface processing modules be responsible for by with mobile communications network short messaging gateway interface, encrypted service key is sent to mobile phone terminal by short message.For the short message of condition access information and the difference of other short messages, define a special short message types (ServiceType) or sign (TeleserviceID) can for this short message, be convenient to terminal recognition like this; For guaranteeing that encrypted service key is delivered to user mobile phone reliably, can require the mobile communication short-message system that receipt is provided.If do not receive receipt message or receive customer complaint, then this user is issued this encrypted service key again in fixed time.
300 if unidirectional multimedia service receiving terminal, then gives multiplexing equipment condition reception information and performance guide information, business information are multiplexed into transport stream together; The head end conditional receiving system generates the Entitlement Control Message of user terminal, also is multiplexed into transport stream, sends to user terminal by radio network after step 310 scrambling.
The control word information that 310 condition receiving systems produce is given scrambling equipment, and scrambling equipment is handed down to terminal by mobile media broadcasting network after according to control word the transmission program stream being disturbed processing.
320 mobile phone terminals directly are decrypted the business cipher key that receives, obtain business cipher key, with this business cipher key the Entitlement Control Message that receives from radio network is decrypted, obtain the scrambling control word, carry out descrambling with this scrambling control word to receiving transport stream, obtain business information from radio network.And unidirectional multimedia receiver terminal taking-up condition from transport stream at end receives information, and according to the traffic assignments key of terminal or terminal intelligent card, the condition that decrypts receives information, generates business cipher key.With this business cipher key the Entitlement Control Message that receives from radio network is decrypted, obtains the scrambling control word, carry out descrambling to receiving transport stream, obtain business information from radio network with this scrambling control word.
Claims (10)
1. the method for transmitting condition receiving information in the mobile media broadcasting network, described mobile media broadcasting network comprises mobile communication interface system/module, it is characterized in that, this method comprises the steps:
(1) determines type of user terminals,, write down the number of this Terminal Type for cell phone type terminal with mobile communication function;
(2) at needs when certain user terminal transmission condition receives information, if this user terminal is the cell phone type terminal, then the business cipher key of encrypting is sent to described mobile communication interface system/module by interface;
(3), the business cipher key of described encryption is sent to this terminal by described mobile communication interface system/module according to the number of this cell phone type terminal of described record.
2. the method for claim 1 is characterized in that, further comprises:
(4) after described cell phone type terminal receives this condition reception information, receive information, the transmitting business stream that receives from radio network is carried out descrambling, obtain business information according to this condition.
3. the method for claim 1 is characterized in that, in the described step (1), when opening an account to the user, determines the classification of this user's terminal by broadcast operator, and preserves the number of cell phone type terminal.
4. the method for claim 1, it is characterized in that, in the described step (2), when the service authority change takes place in described cell phone type terminal use, Subscriber Management System is with the authority notification condition receiving system of this terminal, condition receiving system generates the business cipher key of encrypting according to this user's authority, is sent to described mobile communication interface system/module.
5. the method for claim 1 is characterized in that, in the described step (2), if this user terminal is not the multi-medium broadcasting receiving terminal with mobile communication function, then described condition is received information and transmits by radio network with transport stream.
6. method as claimed in claim 5, it is characterized in that, further comprise: the described multi-medium broadcasting receiving terminal that does not have mobile communication function solves condition and receives information from the transmitting business stream that radio network receives, receive information according to this condition, to the transport stream descrambling, obtain business information.
7. the method for claim 1 is characterized in that, in the described step (3), described mobile communication interface system/module by the short message mode, is sent to this terminal with the business cipher key of described encryption.
8. the method for claim 1 is characterized in that, in the described step (3), described mobile communication interface system/module, by WAP Push, MMS, Email, perhaps wireless packet data transmission means is sent to this terminal with the business cipher key of described encryption.
9. method as claimed in claim 7 is characterized in that, described short message comprises special a short message type or an identification information.
10. method as claimed in claim 7, it is characterized in that, described mobile communication interface system/module further requires the mobile communication short-message system that receipt is provided, if do not receive receipt message at the appointed time or receive customer complaint, then this user terminal is resend the business cipher key of described encryption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101611440A CN101198011B (en) | 2006-12-07 | 2006-12-07 | Method for transmitting condition receiving information in mobile multimedia broadcasting network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101611440A CN101198011B (en) | 2006-12-07 | 2006-12-07 | Method for transmitting condition receiving information in mobile multimedia broadcasting network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101198011A CN101198011A (en) | 2008-06-11 |
| CN101198011B true CN101198011B (en) | 2010-09-29 |
Family
ID=39548111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101611440A Expired - Fee Related CN101198011B (en) | 2006-12-07 | 2006-12-07 | Method for transmitting condition receiving information in mobile multimedia broadcasting network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101198011B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MY150961A (en) | 2007-09-28 | 2014-03-31 | Interdigital Patent Holdings | Method and apparatus for high-speed transmission on rach |
| CN101478725B (en) * | 2009-01-24 | 2011-09-21 | 中兴通讯股份有限公司 | Service cipher key synchronization method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313688A (en) * | 2000-03-14 | 2001-09-19 | 索尼公司 | Information supplying and processing device and method, and program storing medium |
| CN1452418A (en) * | 2002-04-12 | 2003-10-29 | 华为技术有限公司 | Method for sending cipher information to mobile terminal in mobile communication system |
| CN1777275A (en) * | 2004-11-19 | 2006-05-24 | Lg电子株式会社 | Conditional access for a multimedia broadcast service using a wireless terminal |
| EP1722564A1 (en) * | 2005-05-13 | 2006-11-15 | Nagra France Sarl | Local conditional access method for mobile receivers |
-
2006
- 2006-12-07 CN CN2006101611440A patent/CN101198011B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313688A (en) * | 2000-03-14 | 2001-09-19 | 索尼公司 | Information supplying and processing device and method, and program storing medium |
| CN1452418A (en) * | 2002-04-12 | 2003-10-29 | 华为技术有限公司 | Method for sending cipher information to mobile terminal in mobile communication system |
| CN1777275A (en) * | 2004-11-19 | 2006-05-24 | Lg电子株式会社 | Conditional access for a multimedia broadcast service using a wireless terminal |
| EP1722564A1 (en) * | 2005-05-13 | 2006-11-15 | Nagra France Sarl | Local conditional access method for mobile receivers |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101198011A (en) | 2008-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8677147B2 (en) | Method for accessing services by a user unit | |
| CN100504895C (en) | System and method for using DRM to control conditional access to broadband digital content | |
| CN100521774C (en) | Control of a conditional access mechanism | |
| CN101478544B (en) | Implementation method and apparatus for multimedia broadcast multiple ciphering and deciphering | |
| JP2003503941A (en) | Broadcast and receive messages | |
| WO2010149161A1 (en) | Access control system | |
| CN100442839C (en) | Information transmitting method and apparatus for interactive digital broadcast television system | |
| CN100479354C (en) | Method for transmitting condition receiving information in mobile multimedia broadcast network | |
| US20060064443A1 (en) | Access means management method for conditional access data | |
| CN101188830A (en) | Mobile TV service operation system | |
| CN102714593A (en) | Methods for decrypting, transmitting and receiving control words, storage medium for executing said methods | |
| CN101247189B (en) | Receiving terminal and device for terminal implementing service authorization in conditioned receiving system | |
| CN101321261B (en) | Front-end system, user terminal and authorization management information distribution method | |
| CN101656583B (en) | Key management system and key management method | |
| CN100551034C (en) | A kind of mobile multi-media service implementation method and condition receiving system | |
| CN101198011B (en) | Method for transmitting condition receiving information in mobile multimedia broadcasting network | |
| CN101246615B (en) | System for long-range managing electronic purse state | |
| CN101247508B (en) | Method for terminal implementing service authorization in conditioned receiving system | |
| CN101505462B (en) | Authentication method and system for mobile multimedia broadcast conditional reception | |
| KR20050090399A (en) | Method for access control in digital pay television | |
| CN100499470C (en) | System and method for implementing prepaid services in mobile multimedia broadcast | |
| EP2146506B1 (en) | System and method of enabling decryption of encrypted services | |
| CN101217358A (en) | An activation method of digital broadcast service system and digital broadcast service | |
| CN101247188B (en) | Method for remotely managing electronic purse state | |
| CN101150707B (en) | A method for realizing secure multimedia broadcast |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20151207 |
|
| EXPY | Termination of patent right or utility model |