KR20060110585A - Method for controlling call-back threshold value in a mobile communication terminal for pay-per-view program and mobile communication terminal therefor - Google Patents

Abstract

A method for controlling a call-back critical value of a mobile communication terminal to watch a PPV(Pay-Per-View) program and a mobile communication terminal therefor are provided to withdraw the viewing restrictions on the PPV program when PPV is not yet processed due to the environment of a mobile communication network. When a call back critical value is compared with a viewing history value, the environment of a mobile communication network is measured(S102). The environmental measurement value is supplied to a smart card. It is determined whether changing the call-back critical value is requested according to the environmental measurement value(S103). If changing the call-back critical value is requested as the determined result, the call-back critical value is increased, and then the increased call-back critical value is stored(S104).

Description

Method for Controlling Call-Back Threshold Value in a Mobile Communication Terminal for Pay-Per-View Program and Mobile Communication Terminal therefor}

1 is a block diagram of a broadcast transmission system and a mobile communication terminal according to an embodiment of the present invention;

2 is a flowchart sequentially illustrating a callback threshold control method according to an embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

10: scrambler 20: CW generator

30: subscriber management system 40: multiplexing device

110: ECM generator 120: EMM generator

130: callback server 200: mobile communication terminal

210: demultiplexer 220: descrambler

230: smart card 240: network environment measurement unit

250: broadcast playback device

The present invention relates to a method for controlling a callback threshold value in a mobile communication terminal for watching a PPV program and a mobile communication terminal therefor. More specifically, the present invention allows viewing of a PPV program until the callback threshold is reached, and the callback threshold value is increased. In the case of providing a PPV service that handles billing when it reaches, the callback threshold is adjusted according to the network environment, so that the limitation of viewing the pay per view program can be eliminated when the billing is not processed due to the network environment. A callback threshold control method in a mobile communication terminal for viewing a PPV program and a mobile communication terminal for the same.

Digital Multimedia Broadcasting (DMB) service is a mobile multimedia broadcasting service that combines broadcasting and communication. It provides CD-quality sound, data, and high-definition video through mobile phones, personal digital assistants (PDAs), and vehicle terminals. Digital broadcasting service that provides a service.

At present, digital multimedia broadcasting to mobile communication terminal is under trial service, and this broadcasting service will be provided soon. When digital multimedia broadcasting service is provided, mobile communication subscribers can watch drama or high-quality music using mobile communication terminal even in subway or bus. You can listen to information, such as news, weather, stock quotes can always receive information while watching the broadcast, and the title or lyrics of the music you are listening to as captions or photos, attracting the attention of mobile subscribers.

On the other hand, most of these digital multimedia broadcasting is to be provided as a paid service, so that subscribers can buy and watch a single movie, program or one-time event as one product unit, and pay as much as they watch. A PPV service, which is a broadcast service, is provided.

In other words, the PPV service is a method of charging per case for a specific program desired by a user, unlike a method of paying and viewing a predetermined amount in advance for a predetermined period, and is classified into a prepaid method and a postpaid method.

Prepayment methods include subscribers purchasing a certain amount of tokens in advance, subtracting each time they view the program, and paying upfront each time they see the program. Postpay method uses a callback threshold for billing. There is this.

The callback threshold is typically determined by the broadcaster and is a value that can have a basic view of the accumulated time of viewing, the number of viewed programs, the accumulated amount of viewing, and the like, and refers to the highest value that can be serviced in an unpaid amount.

The PPV service method based on the callback threshold allows the user to watch the program without additional billing processing until the callback threshold is reached, and when the callback threshold is reached, the receiver performs the billing processing through the callback. Until this is done normally no more viewing of the program.

When this method is applied, the receiver accesses the callback server through the callback when the callback threshold is reached and handles the charge.If the charge is not processed due to the repeated callback failure, the subscriber can proceed with the normal processing of the charge. You will not be able to watch any more programs until this time.

On the other hand, depending on the environment of the return channel for the callback, the billing settlement for the viewing history may not be processed normally, especially in the case of a mobile communication terminal that needs to use the mobile communication network as a return channel due to poor communication environment In some cases, the normal processing may not be possible. In this case, if a fixed callback threshold is applied, the user may not be able to view the broadcast content of the PPV channel.

Accordingly, the present invention is to solve the above-mentioned disadvantages and problems of the prior art, by adjusting the callback threshold value according to the environment of the mobile communication terminal in the mobile communication terminal, PPV (Pay Per) at the time of no charge due to the network environment It is an object of the present invention to provide a method for controlling a callback threshold value in a mobile communication terminal for viewing a PPV program and to solve the program viewing constraint.

The object of the present invention is information for watching a broadcast program and a PPV broadcast program of a PPV channel, and accumulates a callback threshold value of a predetermined unit and a viewing history value of the same unit as the unit of the callback threshold value according to the viewing of the broadcast program. A mobile communication terminal having a smart card configured to perform a billing process when the viewing history value reaches the callback threshold value by comparing the callback threshold value and the viewing history value, wherein the mobile communication terminal is a mobile communication network. And a network environment measurement unit configured to measure an environment of the environment and provide an environment measurement value to the smart card, wherein the smart card is configured to measure environment from the network environment measurement unit at a time point of comparison between a viewing history value and a callback threshold value. Obtain a value and, if a change of the callback threshold is required according to the obtained environmental measurement, the callback by a certain criterion It is achieved by a mobile communication terminal that stores a threshold by increasing or decreasing treatment.

In addition, the object of the present invention is information for watching a broadcast program and a PPV broadcast program of a PPV channel, and a callback threshold value of a predetermined unit and a viewing history value of the same unit as the unit of the callback threshold value according to the viewing of a broadcast program. Is stored, and the callback threshold value is compared with the viewing history value, and when the viewing history value reaches the callback threshold value, a callback threshold control method in a mobile communication terminal having a smart card for performing a billing process. A first step of measuring an environment of a mobile communication network and providing an environment measurement value to the smart card when it is time to compare the viewing history value with a callback threshold value; A second step of determining, by the smart card, whether a change of the callback threshold value is required based on a predetermined reference; A third step of increasing and decreasing the callback threshold value according to a predetermined criterion when a change of the callback threshold value is required as a result of the determination; It is achieved by a callback threshold control method in a mobile communication terminal for watching a PPV program comprising a.

Details of the above object and technical configuration of the present invention and the resulting effects thereof will be more clearly understood from the following detailed description based on the accompanying drawings.

First, FIG. 1 is a configuration diagram of a broadcast transmission system and a mobile communication terminal according to an embodiment of the present invention.

First, a broadcast transmission system for transmitting digital multimedia broadcasting in order to help understanding of the present invention will be described as follows.

The broadcast transmission system includes a scrambler 10, a CW generator 20, a subscriber management system 30, a multiplexing device 40, an ECM generator 110 for reception restriction, an EMM generator 120, and a callback server. And 130.

The scrambler 10 uses a control word CW provided from a CW generator 10 for generating a control word CW for encrypting broadcast program data, and provides a broadcast program provided from the program provider PP. Scramble the data.

Here, the control word CW is a key for scrambling the broadcast program data. The receiving device receiving the encrypted broadcast program data uses the entitlement control message (ECM) and the entitlement management message (EMM) described below. The control word is obtained, and the scrambled broadcast program data is descrambled and reproduced.

The ECM generator 110 generates an Entitlement Control Message (ECM), which is a message used for content protection, and receives the control word CW and the channel / program received from the CW generator 20. It generates a credential control message (ECM) including the credential information, and transmits it to the multiplexing device (40).

The EMM generation unit 120 interworks with the subscriber management system 30 which is in charge of entitlement management for each subscriber, and generates an entitlement management message (EMM) used for subscriber authentication, and an entitlement control message. The EMM generates an entitlement management message (EMM) by including the encryption key of the ECM and the subscriber's viewing entitlement information, and transmits it to the multiplexer 40.

The multiplexing device 40 multiplexes the encrypted broadcast program data, the entitlement control message and the entitlement management message and transmits them to the mobile communication terminal 200 which is a receiver. In the drawing, both the entitlement control message and the entitlement management message are multiplexed with the multiplexing device 40. Although illustrated as being multiplexed and transmitted to the mobile communication terminal 200 according to the present invention, since the receiving device is a mobile communication terminal, the entitlement management message, which is a control message for each subscriber, may be individually transmitted for each subscriber through the mobile communication network. .

The callback server 130 interworks with the subscriber management system 30 to handle billing of subscribers connected through a return channel.

The mobile communication terminal 200 of the present invention for receiving digital multimedia broadcasting from the broadcast transmission system as described above includes a demultiplexer 210, a descrambler 220, a smart card 230, and a network environment measurement unit 240. And a broadcast reproducing apparatus 250.

The demultiplexer 210 receives the multiplexed signal and demultiplexes the encrypted broadcast program data, the entitlement control message (ECM) and the entitlement management message (EMM), and the encrypted broadcast program data is descrambler 220. The entitlement control message and the entitlement management message are forwarded to the smart card 230.

If, as mentioned above, if the entitlement management message is separately received through the mobile communication network, the demultiplexer 210 will receive and separate only the broadcast program data and the entitlement control message.

The smart card 230 determines whether to allow / restrict the reception using the qualification restriction information in the credential control message or the credential management message. When the reception is permitted, the smart card 230 generates a control word CW to the descrambler 220. It serves to convey.

In addition, in the present invention, the smart card 230 stores a callback threshold value and a viewing history value as information for viewing a PPV program and a PPV broadcast program.

The callback threshold value is a maximum viewing history value that can be viewed with the unpaid charges used in the PPV service that charges the broadcast program first and then charges, and the viewing history value refers to a value accumulated according to the broadcast program viewing. The callback threshold is generally determined by the broadcaster and can be changed by the subscriber entitlement management message (EMM).

Accordingly, the callback threshold value and the viewing history value should be values of the same unit, and the unit may be a cumulative viewing time, a number of viewing programs, a viewing accumulation amount, and the like.

The smart card 230 accumulates the viewing history value according to the watching of the broadcast program, and when the viewing of the broadcasting program is attempted, when the viewing of the broadcasting program is terminated, when the callback fails or periodically, the smart card 230 stores the accumulated viewing history value and the callback threshold value. In comparison, when the viewing history value reaches the callback threshold value, the terminal accesses the callback server 130 through the mobile communication network to process the charging.

Meanwhile, in the present invention, since the return network to the callback server 130 is a mobile communication network, when the network environment is not good, the return and charge processing to the callback server 130 may not be normally performed. Since the program can not be viewed later, the smart card 230 always adjusts the callback threshold according to the network environment.

That is, when the smart card 230 is a time point to compare the callback threshold value and the viewing history value, the network environment measurement unit 240 requests the environmental measurement of the mobile communication network, the network environment measurement unit 240 network environment Measure and transfer the measured value to the smart card 230.

In this case, the mobile communication network may be a variety of environments, such as CDMA, GSM, GPRS, WCDMA, wireless LAN, portable Internet, the environment measurement value may be a variety of values, such as pilot signal-to-noise ratio, received power, accordingly the environment measurement The value is not limited to a specific mobile network environment.

The smart card 230 determines whether the change of the callback threshold value is required according to the environmental measurement value obtained from the network environment measurement unit 240, and, if a change of the callback threshold value is required, by a predetermined criterion. Increment and store the callback threshold value.

At this time, it is preferable that the upward adjustment or the downward adjustment of the callback threshold value is made only up to a certain threshold value. Accordingly, the smart card 230 stores the upper limit value and the lower limit value of the callback threshold value, and is within a range between the lower limit value and the upper limit value. You must adjust the callback threshold at.

Next, FIG. 2 is a flowchart sequentially illustrating a callback threshold control method according to an embodiment of the present invention.

As shown, when the smart card 230 of the mobile communication terminal 200 is a time point of comparison between the viewing history value and the callback threshold value (S101), the network environment measurement unit 240 requests to measure the environment of the mobile communication network. do.

In this case, the comparison between the viewing history value and the callback threshold value may be performed when the broadcast program is attempted, when the broadcast program is finished watching, when the callback fails, or periodically.

Next, the network environment measurement unit 240 of the terminal 200 measures the current network environment (S102) and returns to the smart card 230.

The smart card 230 determines whether the change of the callback threshold is required based on a predetermined reference according to the environmental measurement value (S103). After the callback threshold is increased and decreased (S104), when the viewing history value reaches the callback threshold value by comparing the viewing history value and the callback threshold value adjusted according to the network environment, charging is performed (S105). ).

On the other hand, if the upper and lower limits of the callback threshold value is stored in the smart card 230 during the increase and decrease of the callback threshold value, the smart card 230 whether the upper limit value is exceeded when the callback threshold value is adjusted upward. The controller determines whether the upper limit value is higher than the upper limit value, and when adjusting the lower limit value, it determines whether the upper limit value is lower than the lower limit value, and lowers the callback threshold value only within the lower limit value.

As those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features, the embodiments described above should be understood as illustrative and not restrictive in all aspects. Should be. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

Therefore, according to the method of controlling a callback threshold value in a mobile communication terminal for watching a PPV program of the present invention and a mobile communication terminal therefor, the mobile communication terminal adjusts the callback threshold value according to the environment of the mobile communication network, It is possible to remove the PPV (Pay Per View) program viewing restrictions when the billing is not processed, to induce more broadcast viewing and increase the user's convenience.

Claims (10)

Information for watching a broadcast program of a PPV channel and a PPV broadcast program, and accumulating and storing a callback threshold value of a predetermined unit and a viewing history value of the same unit as the unit of the callback threshold value according to viewing of a broadcast program, and storing the callback A mobile communication terminal comprising a smart card that compares a threshold value and a viewing history value and performs charging processing when the viewing history value reaches a callback threshold value. The mobile communication terminal is configured to include a network environment measurement unit for measuring the environment of the mobile communication network, and provides an environmental measurement value to the smart card, The smart card acquires an environmental measurement value from the network environment measurement unit at a time point of comparison between the viewing history value and the callback threshold value, and when a change of the callback threshold value is required according to the obtained environmental measurement value, And increasing and decreasing the callback threshold value by using the mobile communication terminal. The method of claim 1, The smart card further stores an upper limit of the callback threshold value, and increases the callback threshold value within the range below the upper limit value when the callback threshold value increases according to an environmental measurement value. The method of claim 2, The smart card further stores a lower limit of the callback threshold, and adjusts the callback threshold within a range between the lower limit and the upper limit when the callback threshold is increased / decreased according to an environmental measurement value. Mobile communication terminal. The method of claim 1, The time point of comparison between the viewing history value and the callback threshold value is And at least one of a broadcast program viewing attempt point, a broadcast program viewing end point, a callback failure point, and a periodic view point. The method of claim 1, The callback threshold and the viewing history value, A mobile communication terminal, characterized in that any one of a cumulative viewing time, the number of viewing programs, the cumulative viewing amount. Information for watching a broadcast program of a PPV channel and a PPV broadcast program, and accumulating and storing a callback threshold value of a predetermined unit and a viewing history value of the same unit as the unit of the callback threshold value according to viewing of a broadcast program, and storing the callback A method for controlling a callback threshold value in a mobile communication terminal having a smart card for performing a charging process when a viewing history value reaches a callback threshold value by comparing a threshold value and a viewing history value, A first step of measuring an environment of a mobile communication network and providing an environment measurement value to the smart card when it is time to compare the viewing history value with a callback threshold value; A second step of determining, by the smart card, whether a change of the callback threshold value is required based on a predetermined reference; A third step of increasing and decreasing the callback threshold value according to a predetermined criterion when a change of the callback threshold value is required as a result of the determination; Callback threshold control method in a mobile communication terminal for watching a PPV program comprising a. The method of claim 6, In the first step, The time point of comparison between the viewing history value and the callback threshold value is A callback threshold control method in a mobile communication terminal for viewing a PPV program comprising at least one of a broadcast program viewing attempt point, a broadcast program viewing end point, a callback failure point, and a periodic point in time. The method of claim 6, The smart card further stores an upper limit of the callback threshold value, In the third step, If the callback threshold is required to increase, the smart card increases the callback threshold within the range below the stored upper limit, Callback threshold control method for a mobile communication terminal for watching a PPV program. The method of claim 6, The smart card further stores the lower limit of the callback threshold, In the third step, When the change of the callback threshold value is required, the smart card adjusts a callback threshold value within a range between the stored lower limit threshold value and the upper limit threshold value. Threshold control method. The method of claim 6, The callback threshold and the viewing history value, A method for controlling a callback threshold value in a mobile communication terminal for viewing a PPV program, characterized in that any one of a cumulative viewing time, a number of viewing programs, and a viewing accumulation amount is used as a unit.

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