WO2012022139A1

WO2012022139A1 - Method and system for obtaining mobile phone tv service keys

Info

Publication number: WO2012022139A1
Application number: PCT/CN2011/070896
Authority: WO
Inventors: 陈文宁
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-08-16
Filing date: 2011-02-09
Publication date: 2012-02-23
Also published as: CN101924596A; CN101924596B

Abstract

A method for obtaining mobile phone TV service keys is disclosed in the present invention. The method includes that: a mobile Network Application Function (NAF) entity initiates a service key request to a broadcast and television management system for a user equipment, if a service key failure response of the broadcast and television management system is received and the failure reason is that the order relation of the user is nonexistent, the mobile NAF entity initiates an order relation synchronization process to the broadcast and television management system; and after the order relation synchronization is successful, the mobile NAF entity initiates the service key request to the broadcast and television management system again. A system for obtaining mobile phone TV service keys is also disclosed in the present invention, wherein the system includes a key request processing module and an order relation synchronization module which are located in a mobile NAF entity. The present invention ensures the consistency of the order relation between a mobile system and a broadcast and television system, thus effectively enhancing the success rate that mobile phone users obtain the service keys by.

Description

Mobile phone television service key acquisition method and system

TECHNICAL FIELD The present invention relates to the field of China Mobile multimedia broadcast technology, and more particularly to a mobile phone service key acquisition method and system.

BACKGROUND OF THE INVENTION A mobile broadcast service management system (MBBMS) uses a broadcast network of a broadcasting and television operator to provide downlink transmission of multimedia content, and utilizes an authentication management system of the China Mobile communication network and a two-way network transmission. The capability, as well as the user management system of the broadcasting and television, complete the authentication, authorization and management of the user, and simultaneously realize the relevant interactive functions by using the two-way channel of the mobile network. The mobile TV service management system involves a mobile multimedia terminal (User Equipment, UE for short), a mobile management system, and a radio and television management system. The mobile management system includes a service center system (Network Application Function, abbreviated as NAF) entity, a Bootstrapping Service Function (BSF) and a service support system; the radio and television management system includes a radio and television user management system and The radio and television key management system is the Conditional Access System (CAS). FIG. 1 shows a subscription process initiated by a client to a MBBMS service platform to which a user belongs. Referring to FIG. 1, the process specifically includes the following steps: Step 101: A mobile TV user initiates a service subscription request to an MBBMS service platform through a mobile TV client. Step 102: After receiving the service subscription request message, the mobile NAF initiates a subscription relationship generation confirmation request to the radio and television user management system. Step 103: The radio and television user management system performs a processing of the subscription relationship generation confirmation request, determines whether the user is allowed to place the subscription, and then Returning the result of the judgment to the order generation confirmation response message and returning it to the mobile NAF; Step 104: If the subscription relationship generated by the mobile NAF generates a confirmation response as successful, step 105 is performed; if not, the process proceeds to step 112, and a response is returned to the client that does not allow the user to make an order; Step 105: Move the NAF to The mobile service support system initiates a service subscription request; Step 106: The mobile service support system performs a service subscription process; Step 107: The mobile service support system replies to the mobile NAF with a service subscription response, and if the received service subscription response is a successful subscription, the step is performed. If the received service order response is not successful, the process proceeds to step 112, and the subscription failure response is returned to the mobile phone user. Step 108: The mobile NAF saves the subscription relationship of the user; Step 109: The mobile NAF initiates to the radio and television user management system. Ordering the relationship synchronization request; Step 110: The broadcasting and television user management system processes the subscription relationship synchronization request, and if the processing is successful, the user's subscription relationship is saved; in addition, the broadcasting and television user management system also synchronizes the user's subscription relationship to the broadcasting and television key management system. Steps T1, Τ 2, and Τ 3 in the figure Step 111: The radio and television user management system sends a subscription relationship synchronization response to the mobile NAF. Step 112: The mobile NAF returns a successful or failed service subscription response to the mobile phone user. After the mobile TV user subscribes to a certain business, the TV program included in the service can be viewed. The viewing of the program requires that the service key of the program be stored in the terminal. If there is no storage in the terminal, the service key of the program needs to be obtained from the MBBMS service platform to decrypt the encrypted program stream, so that the program can be viewed. As shown in FIG. 2, the client initiates a service key acquisition process to the user-owned MBBMS service platform. In combination with FIG. 1, the process specifically includes the following steps: Step 201: The mobile TV user initiates a service to the MBBMS service platform through the mobile TV client. Key request

Step 202: After receiving the service key request message, the mobile NAF checks whether the user has subscribed to the service, and if yes, performs step 203; if not, proceeds to step 210; Step 203: The mobile NAF initiates a service key request message to the broadcast key management system. Step 204: After receiving the service key request message, the broadcast power key management system queries whether the user has subscribed the service, and if yes, executes Step 205; If not proceeding to step 209; Step 205: The broadcast key management system encrypts the service key; Step 206: The broadcast power key management system replies to the mobile NAF with a service key request response, and the encrypted service key The mobile NAF is transmitted to the mobile NAF; Step 207: After the mobile NAF encrypts the service key, the mobile TV client replies with the service key response; Step 208: After receiving the service key response message, the mobile TV client secrets the service The key is written to the user authentication module. The inventor of the present application has found that: in the above existing process, when a user subscribes to a certain service, if the mobile system and the radio and television system have unpredictable errors in the process of synchronizing the order relationship, the mobile system and the radio and television system save the The order relationship is inconsistent For example, when the mobile NAF initiates the subscription relationship generation confirmation request message, if the subscription relationship generation confirmation response replied by the radio and television user management system is permitted, the mobile side considers that the user can subscribe and complete the subscription operation of the user. After receiving the subscription relationship synchronization message, the broadcasting and television subscriber management system saves the subscriber's subscription relationship, returns a subscription relationship synchronization response to the mobile NAF, and synchronizes the subscriber's subscription relationship to the broadcast power key management system. However, in this process, the broadcasting and TV side may cause the broadcasting and television user management system not to save the successful user's subscription relationship, or fail to successfully synchronize the user's subscription relationship to the broadcasting and television key management system for some reasons, such as network failure. As a result, the user subscription relationship saved by the mobile-side system and the broadcast-side system is inconsistent, which in turn may result in the user not being able to obtain the corresponding service key of the subscribed service. In summary, the following problems exist in the prior art: Although the user subscribes to the service, in the process of watching the program terminal acquiring the service key, the user does not acquire the subscription authentication failure on the radio and television key management system side. When the service key is obtained, the user cannot view the service that has already been subscribed, which causes a very bad experience for the user. SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to provide a method and system for acquiring a mobile phone television service key, which solves the problem that the subscription relationship between the mobile side system and the broadcasting and television side system is inconsistent, and effectively improves the success rate of the mobile TV user acquiring the service key. In order to solve the above technical problem, the present invention provides a mobile phone television service key acquisition method, the method comprising: a mobile network application function (NAF) entity for a user terminal to initiate a service key request to a radio and television management system, if received The service key failure response of the radio and television management system, and the failure reason is that the subscription relationship of the user does not exist, the subscription relationship synchronization process is initiated to the radio and television management system; and after the subscription relationship is successfully synchronized, the mobile NAF entity re-directs The radio and television management system initiates a service key request. The method further includes: the mobile NAF entity receiving a service key request initiated by a user terminal; and the mobile NAF entity determining whether the user has subscribed to a service, and if so, initiating the performing the radio and television management system The step of the service key request; if not, the service key failure response is returned to the user. After the step of the mobile NAF entity initiating the service key request to the radio and television management system, the method further includes: after receiving the service key request initiated by the mobile NAF entity, the radio and television management system determines whether the user is stored. The subscription relationship, if not stored, replies to the mobile NAF with a service key failure response. The step of the mobile NAF entity initiating a subscription relationship synchronization process to the radio and television management system includes: the mobile NAF entity initiating a subscription relationship synchronization request to the radio and television user management system, and synchronizing the subscription relationship of the user to the radio and television user management system; The radio and television user management system saves the subscription relationship of the user, and simultaneously synchronizes the subscription relationship of the user with the radio and television key management system. If the subscription relationship is successfully saved and the successful response of the radio and television key management system is received, Returning a subscription relationship synchronization success result to the mobile NAF entity; otherwise, returning a subscription relationship synchronization failure result to the mobile NAF entity; and returning to the mobile NAF entity when the subscription relationship synchronization success result is received The broadcast key management system initiates a service key request; when the mobile NAF entity receives the subscription relationship synchronization failure result, the service key request failure response is returned to the terminal. The step of the mobile NAF entity initiating a subscription relationship synchronization process to the radio and television management system includes: the mobile NAF entity separately initiates a subscription relationship synchronization request to the radio and television user management system and the radio and television key management system;

When the broadcast power user management system and the broadcast power key management system receive the subscription relationship synchronization request initiated by the mobile NAF entity, the subscription relationship of the user is saved, and if the save is successful, the subscription is returned to the mobile NAF entity. a relationship synchronization success result; if the save fails, returning a subscription relationship synchronization failure result to the mobile NAF entity; and the mobile NAF entity receives the subscription relationship synchronization between the broadcast power user management system and the broadcast power key management system As a result, a service key request is re-initiated to the broadcast power key management system; otherwise, a service key request failure response is returned to the terminal. The method further includes: after receiving the service key request initiated by the mobile NAF entity, the radio and television management system, if it is determined that the subscription relationship of the user is stored, responding to the mobile NAF with a service key successfully responding And including the encrypted service key in the service key success response to the mobile NAF entity. To solve the above technical problem, the present invention further provides a mobile phone television service key acquisition system, the system comprising a key request processing module and a subscription relationship synchronization module in a mobile NAF entity, wherein:

The key request processing module is configured to: according to a service key request initiated by the user terminal, The radio and television management system initiates a service key request, and if the service key failure response of the radio and television management system is received, and the reason for the failure is that the subscription relationship of the user does not exist, the subscription relationship synchronization module is triggered; After the successful result of the relationship synchronization, the service key request is re-initiated to the radio and television management system; the subscription relationship synchronization module is configured to: After the triggering, initiate a subscription relationship synchronization process to the radio and television management system. The key request processing module is further configured to: when receiving the service key request initiated by the user terminal, if it is determined that the user has subscribed to the service, initiate a service key request to the radio and television management system; It is determined that the user does not subscribe to the service, and returns a service key failure response to the user. The order relationship synchronization module is further configured to: initiate a subscription relationship synchronization request to the radio and television user management system, synchronize the subscription relationship of the user to the radio and television user management system, and synchronize the radio and television user management system to the radio and television a key management system; and sending the received subscription relationship synchronization result to the key request processing module; the key request processing module is further configured to: when receiving the successful result of the subscription relationship synchronization, re-sending to the broadcast The key management system initiates a service key request, and returns a service key request failure response to the user when receiving the result of the subscription relationship synchronization failure. The subscription relationship synchronization module is further configured to: initiate a subscription relationship synchronization request to the radio and television user management system and the radio and television key management system, respectively, and send the received subscription relationship synchronization result to the key request processing module; The key request processing module is further configured to: when receiving the result of successful synchronization of the subscription relationship between the broadcast power user management system and the broadcast power key management system, re-initiating a service key request to the broadcast power key management system; Otherwise, a service key request failure response is returned to the terminal. The invention provides a mobile phone television service key acquisition method and system, which ensures the consistency of the order relationship between the mobile system and the radio and television system, and effectively improves the acquisition of the service key by the mobile phone user. Power. Compared with the prior art, the present invention improves the performance of the mobile TV service through an adaptive mechanism, and improves the user experience of using the mobile TV service.

1 is a flow chart of an existing mobile TV service subscription; FIG. 2 is a flow chart of an existing mobile TV service key acquisition; FIG. 3 is a schematic diagram of a mobile phone service key acquisition flow according to an embodiment of the present invention; A schematic diagram of a composition of a mobile phone television service key acquisition system according to an embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION The core idea of the present invention is that after receiving a service key request initiated by a terminal of a subscribed service, the mobile NAF requests a service key from the radio and television management system, and if the radio and television management system receives the reply, the user does not reply. In response to the ordering service, it is inferred that the subscriber's subscription relationship on the mobile system side and the subscription relationship on the radio and television system side are inconsistent, and the subscription relationship synchronization request is re-initiated to the radio and television management system. Therefore, the problem that the user fails to obtain the service key due to the inconsistent service order relationship held by the mobile side and the broadcasting side is solved in the prior art. Based on the above idea, the embodiment of the present invention provides a method for acquiring a mobile phone television service key, which specifically uses the following technical solution: When the mobile NAF receives the service key request initiated by the mobile TV user terminal, if it is determined that the user has subscribed to the service Then, a service key request is initiated to the radio and television management system; and after the mobile NAF receives the failure response of the radio and television management system response, it is determined whether the reason for the failure is an inconsistent order reason, and if so, a subscription relationship synchronization process is initiated to the radio and television management system. Further, after receiving the service key request initiated by the mobile NAF, the radio and television management system determines whether the subscription relationship of the user is stored, and if not, returns a service key failure response to the mobile NAF. And indicating, in the failure response, an indication that the subscription relationship of the user does not exist; The mobile NAF determines that the reason for the failure is that the order reason is inconsistent according to the indication that the subscription relationship of the user in the failure response does not exist. Further, after the mobile NAF initiates a subscription relationship synchronization process to the radio and television management system, the method further includes: when receiving the subscription relationship synchronization request initiated by the mobile NAF, the radio and television user management system saves the subscription relationship, and simultaneously The broadcast key management system synchronizes the subscription relationship of the user, and if the subscription relationship is successfully saved, and receives a successful response from the broadcast key management system, returning a successful result of the subscription relationship synchronization to the mobile NAF; otherwise, The mobile NAF returns a subscription relationship synchronization failure result; when the mobile NAF receives the result of the subscription relationship synchronization success, initiating a service key request to the broadcast power key management system; the mobile NAF receives the subscription When the result of the relationship synchronization failure, a service key failure response is returned to the terminal. Further, after the mobile NAF initiates a subscription relationship synchronization process to the radio and television management system, the method further includes: when the radio and television key management system receives the subscription relationship synchronization request initiated by the mobile NAF, saving the subscription relationship, if If the subscription relationship is successfully saved, the subscription relationship synchronization success result is returned to the mobile NAF; if the subscription relationship fails to be saved, the subscription relationship synchronization failure result is returned to the mobile NAF;

And when the mobile NAF receives the result that the subscription relationship is successfully synchronized, initiating a service key request to the broadcast power key management system; and when the mobile NAF receives the result of the subscription relationship synchronization failure, to the terminal Returns the business key failure response. Further, the method further includes: after receiving the service key request initiated by the mobile NAF, the radio and television management system returns a service key to the mobile NAF if it is determined that the subscription relationship of the user is stored. Successfully responding, and including the encrypted service key in the service key success response, returning to the mobile NAF. The implementation of the technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other. FIG. 3 is a flowchart of the mobile phone service key acquisition process according to the embodiment of the present invention. Referring to FIG. 3, after the mobile NAF receives the service key request message initiated by the mobile terminal, it determines that the user has subscribed the service, and then the radio key is obtained. The management system requests the key; the broadcast key management system performs the subscription relationship authentication, and finds that there is no subscription relationship of the user, and then responds to the mobile NAF with an error response, notifying the mobile NAF that the user has not subscribed to the service key. After receiving the response, the mobile NAF determines that the subscriber's subscription relationship on the mobile system side is inconsistent with the subscription relationship on the radio and television system side, and then initiates a subscription relationship synchronization request to the radio and television subscriber management system. If the mobile NAF receives the response from the radio and television user management system to return the subscription relationship synchronization successfully, the service key request is re-initiated to the broadcast key management system; if the mobile NAF receives the failure response returned by the radio and television user management system, it is treated as a failure. As shown in FIG. 3, the process in this embodiment specifically includes the following steps: Step 301: The mobile phone user opens a mobile TV client, watches a certain TV channel, and queries whether the service key of the channel is stored. If not, Step 302: Step 302: The mobile terminal sends a service key request to the mobile TV platform, that is, the mobile NAF. Step 303: After the mobile NAF receives the service key request message, the subscription authentication operation is performed, and the user who successfully authenticates can request the service. Key: Step 304: The mobile NAF determines whether the user has subscribed to the service. If the platform has the subscriber's subscription relationship, proceed to step 305; if the platform does not have the subscriber's subscription relationship, proceed to step 315; Step 305: Move the NAF to initiate a service key request message to the broadcast power key management system; Step 306: Broadcasting After receiving the service key request message, the key management system performs subscription relationship authentication on the user. Determining whether the subscription relationship of the user is stored in the system; Step 307: If the broadcast power key management system determines that the subscription relationship of the user exists in the system, the service key is encrypted by using the user key of the broadcast power side, and the service key is Request response message Returning to the mobile NAF; if it is determined that the subscription relationship of the user does not exist, the mobile NAF is notified in the service key request response message that the subscription relationship of the user does not exist and does not carry the service key of the requested service; Step 308: Move The NAF determines the response message of the broadcast key management system. If it is a success message, go to step 314; if it is a failure message, go to step 309; Step 309: Move the NAF to determine whether the reason for the failure is caused by the absence of the subscription relationship. If not, go to step 315; if yes, go to step 310; Step 310: Move the NAF to re-initiate the subscription relationship synchronization message to the broadcast power user management system; the broadcast power user key management system does not have the subscriber's subscription relationship, and The mobile NAF has the subscriber's subscription relationship, which indicates that the mobile NAF and the radio and television user management system perform the synchronous subscription relationship during the subscription of the service, or the broadcast subscriber management system and the radio and television key management system synchronize the subscription relationship. The error caused the order relationship of the user in the two systems to be inconsistent. At this time, the mobile NAF will initiate a subscription relationship synchronization process to the radio and television management system to ensure the consistency of the subscription relationship between the users of the two systems. The subscription relationship synchronization process may be used but is not limited to the following two methods:

(1) The mobile NAF synchronizes with the radio and television user management system, and the radio and television user management system synchronizes with the radio and television key management system. That is, after receiving the subscription relationship synchronization request initiated by the mobile NAF, the radio and television user management system saves the subscription relationship of the user, and simultaneously synchronizes the subscription relationship of the user with the broadcast key management system;

(2) The mobile NAF initiates a subscription relationship synchronization request to the broadcasting and television user management system and the broadcasting and television key management system respectively.

Step 311: The mobile NAF receives the subscription relationship synchronization result of the radio and television user management system. If the result is successful, the process proceeds to step 312. If the result is a failure, the process proceeds to step 315; wherein, for the first synchronization mode, the radio and television user After receiving the subscription relationship synchronization message of the mobile NAF, the management system saves the subscription relationship of the user, and synchronizes the subscription relationship with the radio and television key management system. After receiving the message, the radio and television key management system returns to the radio and television user management system. The successful or failed response, if successful, the broadcast power user management system returns a successful result to the mobile NAF; if it fails, the broadcast power user management system deletes the saved user subscription relationship and returns a failure result to the mobile NAF. For the second synchronization mode, when the broadcaster user management system and the radio and television key management system receive the subscription relationship synchronization request initiated by the mobile NAF, the subscription relationship of the user is saved, and if the save is successful, the subscription relationship synchronization success result is returned to the mobile NAF. ; If the save fails, return the result of the subscription relationship synchronization failure to the mobile NAF. In this way, the mobile NAF only re-initiates the service key request to the radio and television key management system when it receives the successful synchronization of the subscription relationship between the radio and television user management system and the radio and television key management system; otherwise, returns the service to the terminal. The key request failed to respond. This is because it is necessary to ensure that the broadcasting and television user management system has the subscriber's subscription relationship, otherwise it will affect the billing and other issues. Step 312: The mobile NAF re-initiates the service key acquisition request to the broadcast key management system; Step 313: The mobile NAF obtains the service key response from the broadcast key management system, and determines whether the acquisition is successful. If successful, step 314 is performed; If it fails, go to step 315; Step 314: The mobile NAF encrypts and encapsulates the service key obtained from the broadcast key management system using the user key of the user; Step 315: The mobile NAF sends the NAF to the mobile terminal according to the result of the processing. Returning the service key request response, if it is a failure response, it does not carry the service key; if it is a successful response, it carries the encrypted encapsulated service key, and after receiving the mobile terminal, decrypts and obtains the service key, and It is saved and used to decrypt the encrypted program stream so that the program can be viewed.

Correspondingly, the embodiment of the present invention further provides a mobile phone television service key acquisition system, and FIG. 4 is a schematic diagram of a composition of a mobile phone television service key acquisition system according to an embodiment of the present invention. As shown in FIG. 4, the mobile phone of this embodiment is provided. The TV service key acquisition system includes a key request processing module and a subscription relationship synchronization module in the mobile NAF, where: the key request processing module is configured to: initiate a service to the radio and television management system according to the service key request initiated by the user terminal. The key request, if the service key failure response of the radio and television management system is received, and the reason for the failure is that the subscription relationship of the user does not exist, triggering the subscription relationship synchronization After receiving the successful synchronization result of the subscription relationship, the module re-initiates a service key request to the radio and television management system; the subscription relationship synchronization module is configured to: After triggering, initiate a subscription relationship synchronization process to the radio and television management system. The key request processing module is further configured to: when receiving the service key request initiated by the user terminal, if it is determined that the user has subscribed to the service, initiate a service key request to the radio and television management system; , return a business key failure response to the user. The order relationship synchronization module is further configured to: initiate a subscription relationship synchronization request to the radio and television user management system, synchronize the subscription relationship of the user to the radio and television user management system, and synchronize the radio and television user management system to the radio and television a key management system; and sending the received subscription relationship synchronization result to the key request processing module; the key request processing module is further configured to: when receiving the successful result of the subscription relationship synchronization, re-sending to the broadcast The key management system initiates a service key request, and returns a service key request failure response to the user when receiving the result of the subscription relationship synchronization failure. The subscription relationship synchronization module is further configured to: initiate a subscription relationship synchronization request to the radio and television user management system and the radio and television key management system, respectively, and send the received subscription relationship synchronization result to the key request processing module; The key request processing module is further configured to: when receiving the result of successful synchronization of the subscription relationship between the broadcast power user management system and the broadcast power key management system, re-initiating a service key request to the broadcast power key management system; Otherwise, a service key request failure response is returned to the terminal.

In summary, there is a certain degree of unreliability between the mobile-side system and the broadcast-side system of the existing mobile TV service system. When a user subscribes to a service, if the order relationship is inconsistent due to a failure between the mobile-side platform and the broadcast-side system or between the broadcast power user management system and the broadcast power key management system, the user may not be able to obtain the program while watching the program. The service key of the service, so that the service cannot be used normally, is obviously unreasonable. In the invention, when the user subscription relationship between the mobile side platform and the broadcasting platform is inconsistent, the mobile NAF actively and spontaneously synchronizes the user's order relationship with the broadcasting and television user management system, thereby solving the mobile side platform and the broadcasting platform. This anomaly enhances the self-healing ability of the mobile TV service system, improves the business performance of mobile TV, and enhances the user experience of using mobile TV services. The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. The present invention may be embodied in various other embodiments without departing from the spirit and scope of the invention. Various changes and modifications may be made to the invention, and such changes and modifications are intended to be included within the scope of the appended claims. One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct the associated hardware, such as a read only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware, or may be implemented in the form of a software function module. The invention is not limited to any specific form of combination of hardware and software.

Industrial Applicability The present invention ensures the consistency of the order relationship between the mobile system and the radio and television system, and effectively improves the success rate of the mobile phone user in obtaining the service key. Compared with the prior art, the present invention improves the performance of the mobile TV service through an adaptive mechanism, and improves the user experience of using the mobile TV service.

Claims

Claim

A method for acquiring a mobile phone television service key, the method comprising:

The mobile network application function (NAF) entity initiates a service key request to the radio and television management system for the user terminal, and if the service key failure response of the radio and television management system is received, and the failure reason is that the subscription relationship of the user does not exist, The radio and television management system initiates a subscription relationship synchronization process; and after the subscription relationship is successfully synchronized, the mobile NAF entity re-initiates a service key request to the radio and television management system.

2. The method of claim 1, further comprising: the mobile NAF entity receiving a service key request initiated by a user terminal; and the mobile NAF entity determining whether the user has subscribed to a service, and if so, Performing the step of the radio and television management system initiating the service key request; if not, returning a service key failure response to the user.

The method according to claim 1 or 2, wherein after the step of the mobile NAF entity initiating a service key request to the radio and television management system, the method further comprises: the radio and television management system receiving the mobile NAF entity to initiate After the service key request, it is determined whether the subscription relationship of the user is stored, and if there is no storage, the service key failure response is replied to the mobile NAF.

4. The method according to claim 1, wherein the step of the mobile NAF entity initiating a subscription relationship synchronization process to the radio and television management system comprises: the mobile NAF entity initiating a subscription relationship synchronization request to the radio and television subscriber management system, The subscription relationship of the user is synchronized to the radio and television user management system; the radio and television user management system saves the subscription relationship of the user, and simultaneously synchronizes the subscription relationship of the user with the radio and television key management system, if the subscription relationship is successfully saved and received To the radio and television Returning a success relationship of the subscription relationship synchronization to the mobile NAF entity; otherwise, returning a subscription relationship synchronization failure result to the mobile NAF entity; and the mobile NAF entity receiving the subscription relationship synchronization Upon successful result, the service key request is re-initiated to the broadcast key management system; when the mobile NAF entity receives the subscription relationship synchronization failure result, the service key request failure response is returned to the terminal.

5. The method according to claim 1, wherein the step of the mobile NAF entity initiating a subscription relationship synchronization process to the radio and television management system comprises: the mobile NAF entity initiating an order to the radio and television user management system and the radio and television key management system respectively. Relationship synchronization request;

When the broadcast power user management system and the broadcast power key management system receive the subscription relationship synchronization request initiated by the mobile NAF entity, the subscription relationship of the user is saved, and if the save is successful, the subscription is returned to the mobile NAF entity. a relationship synchronization success result; if the save fails, returning a subscription relationship synchronization failure result to the mobile NAF entity; and the mobile NAF entity receives the subscription relationship synchronization between the broadcast power user management system and the broadcast power key management system As a result, a service key request is re-initiated to the broadcast power key management system; otherwise, a service key request failure response is returned to the terminal.

The method according to claim 4 or 5, the method further comprising: after receiving the service key request initiated by the mobile NAF entity, the radio and television management system determines that the subscription relationship of the user is stored And returning a service key success response to the mobile NAF, and including the encrypted service key in the service key success response, returning to the mobile NAF entity.

A mobile phone television service key acquisition system, the system comprising a key request processing module and a subscription relationship synchronization module in a mobile NAF entity, wherein: the key request processing module is configured to: according to a service initiated by the user terminal Key request, initiating a service key request to the radio and television management system, if the service key failure response of the radio and television management system is received, and the reason for the failure is that the subscription relationship of the user does not exist, triggering the subscription relationship synchronization After receiving the successful synchronization result of the subscription relationship, the module re-initiates a service key request to the radio and television management system; the subscription relationship synchronization module is configured to: After triggering, initiate a subscription relationship synchronization process to the radio and television management system.

8. The system according to claim 7, wherein the key request processing module is further configured to: when receiving a service key request initiated by the user terminal, if it is determined that the user has subscribed to a service, The radio and television management system initiates a service key request; if it is determined that the user does not subscribe to the service, the service key failure response is returned to the user.

The system according to claim 7 or 8, wherein the order relationship synchronization module is further configured to: initiate a subscription relationship synchronization request to the broadcast power user management system, and synchronize the subscription relationship of the user to the broadcast power user management System, and synchronized by the radio and television user management system to the radio and television key management system; and transmitting the received subscription relationship synchronization result to the key request processing module; the key request processing module is further configured to: receive When the order relationship synchronization success result is obtained, the service key request is re-initiated to the broadcast power key management system, and when the subscription relationship synchronization failure result is received, the service key request failure response is returned to the user.

The system according to claim 7 or 8, wherein the subscription relationship synchronization module is further configured to: initiate a subscription relationship synchronization request to the broadcast power user management system and the broadcast power key management system, respectively, and receive the received subscription relationship The synchronization result is sent to the key request processing module; the key request processing module is further configured to: when receiving the result of successful synchronization of the subscription relationship between the broadcast power user management system and the broadcast power key management system, The broadcast key management system initiates a service key request; otherwise, returns a service key request failure response to the terminal.