KR100753291B1 - A Method for Selectively Receiving a Broadcast Website Service in DMB Terminal - Google Patents

Abstract

The present invention relates to a method for receiving a broadcast web service (BWS) in a terrestrial DMB terminal. More specifically, the present invention comprises the steps of receiving and storing MOT BWS channel information from the BWS data broadcasting server in the terminal (a); (B) searching for the BWS channel including the first information from the BWS channel information when the user requests the provision of the first information; And connecting to a BWS channel including the first information, receiving data of a corresponding page through the BWS channel, and displaying the received data on a screen.

In the present invention, in using a BWS (Broadcast Website Service) based on a push type service among DMB-related services, by using both channel information of a MOT BWS channel and a CDMA channel, a push type is used. Minimize connection delay, a weakness of services.

Description

A method for selectively receiving a broadcast website service in DMB terminal

1 is a view for explaining a process of receiving a data packet in a conventional BWS channel.

2 is a view for explaining a process of receiving a data packet in a BWS channel according to the present invention.

3 is a flowchart illustrating a process of selectively receiving a broadcast web service according to the present invention.

The present invention relates to a method for selectively receiving a broadcast web service in a terrestrial DMB system. In the present invention, in using a BWS (Broadcast Website Service) based on a push type service among DMB-related services, by using both channel information of a MOT BWS channel and a CDMA channel, a push type is used. Minimize connection delay, a weakness of services.

Recently, DMB (Digital Multimedia Broadcasting) is a service that is attracting attention as a possibility of convergence of broadcasting and communication in a mobile terminal, and BWS is attracting attention as a service provided by terrestrial DMB.

'IP tunneling' means full-fledged interworking between the Internet and DMB. Various data written in languages such as HTML and JAVA on the Internet site can be received seamlessly through a portable receiver through a terrestrial DMB network. Here, tunneling refers to a transmitter-side encoder input stage to a receiver-side decoder output stage. IP tunneling is a technical standard for allowing Internet-based (IP) -based data transmission through the broadcasting network (terrestrial DMB network) to be performed. .

Since the terrestrial DMB network is a one-way broadcasting network, data service is possible based on 'UDP / IP', which is a method of transmitting data without confirming the access state of the terminal.

One of the services available through IP tunneling technology is 'BWS', which allows the contents of Internet sites to be received by terrestrial DMB receivers. BWS is a technology that combines services such as web environment with broadcasting. By receiving and storing all files related to the web site transmitted using the Multimedia Object Transfer (MOT) protocol in advance, the broadcasting service is implemented so that the web service can be used in a form similar to the Internet web service even if there is no reverse channel.

In this case, you can actually feel like you're surfing an Internet website without an upstream channel. In addition, the receiver can store the files of the Internet site received using the MOT protocol in its own memory and play them, similar to the Internet web service.

However, BWS based on a push type service without an uplink channel is a method of receiving and storing data transmitted from a BWS broadcast server unilaterally. Therefore, it is difficult to reflect the needs of the user, and has the disadvantage of having to wait and repeat the continuous reception process until the desired data is broadcast in order to show the data that meets the needs of the user. In addition, since the BWS broadcast service stores the push type data transmitted through the DMB broadcasting channel in the internal memory of the portable terminal and uses it as necessary, the internal memory of the portable terminal is wasteful. In addition, there is a problem in that it takes a considerable time to receive the desired data because it must receive all the unnecessary data in order to receive the desired data.

The present invention is to solve the problems described above, in the present invention, when using the BWS based on the push-type service of the DMB-related services, the channel information and the CDMA channel of the MOT BWS channel is used together. By using the BWS channel information, it is possible to obtain the information desired by the user actively and with a minimum delay by directly accessing the CDMA channel and actively acquiring the information necessary for the user during the time when the channel does not need to be accessed. Therefore, the connection delay, which is a weak point of the push type service, is minimized, and the user can receive the information desired by the minimum time delay.

Accordingly, an object of the present invention is to provide a method for selectively receiving a broadcast web service in terrestrial DMB.

The present invention relates to a method for selectively receiving a broadcast web service in a terrestrial DMB terminal. More specifically, the method according to the invention,

(A) receiving and storing MOT BWS channel information from a BWS data broadcasting server at the terminal;

(B) searching for the BWS channel including the first information from the BWS channel information when the user requests the provision of the first information; And

(C) connecting to a BWS channel including the first information, receiving data of a corresponding page through the BWS channel, and displaying the received data on a screen.

According to the present invention, a method for selectively receiving a broadcast web service from a terrestrial DMB terminal includes:

If the user requests the provision of the second information, retrieving a CDMA link field corresponding to the second information from the received page according to the user's request;

Requesting a page corresponding to the CDMA link field through an uplink channel of a CDMA channel (e); And

Preferably, the method further comprises the step (f) of receiving the requested page through the downlink channel of the CDMA channel and displaying it on the screen.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 3. However, the present invention is not limited by the following examples.

According to the present invention, a method for receiving data through a BWS service based on the MOT protocol is largely provided.

(i) receiving and retrieving MOT BWS channel information transmitted from a BWS data broadcasting server;

(ii) accessing a desired page by moving to a desired channel using BWS channel information, and

and (iii) obtaining information desired by the user through access of the CDMA channel during the intermediate delay time of receiving the information.

Hereinafter, each step will be described in detail.

(i) receiving and retrieving MOT BWS channel information (step S110 to step S130)

First, the DMB portable terminal receives MOT BWS channel information transmitted from the BWS data broadcasting server during DMB viewing through the DMB broadcasting channel (step S110). The received BWS channel information is stored in the internal memory of the terminal. The BWS channel information includes information on data distribution and data transmission scheduling of each channel.

When the user requests the provision of the first information that he / she wants to obtain through the user interface while viewing the DMB, the DMB portable terminal may provide the specific information that can provide the first information in response to a request from the user, that is, the first information. Search for a specific channel including a in the BWS channel information stored in the internal memory (step S120). When the specific channel is found, the terminal is connected to the found specific channel (step S130), and waits for reception of a desired page.

(ii) page access step by channel movement (step S140)

Thereafter, the DMB portable terminal moves to a specific channel connected by searching for MOT BWS channel information as described above, and receives a desired page at a corresponding time according to the data transmission scheduling defined in the information of the specific channel ( Step S140), and store in the internal memory. That is, the DMB portable terminal receives the page corresponding to the first information requested by the user through the connected specific channel and stores the page in the internal memory. If there is no further information request from the user, the received page is displayed on the screen as described above. Other data not related to the data of the page corresponding to the first information is not received.

1 and 2 illustrate a process of receiving a data packet in a conventional BWS channel and a process of receiving a data packet in a BWS channel according to the present invention, respectively.

1 illustrates a process of transmitting a MOT BWS packet according to an existing method without using MOT BWS channel information. The terminal receives all data without distinguishing the data. This takes more than T1 + T2 + T3 + T4.

2 illustrates a process of receiving packet data using MOT BWS channel information according to the present invention. At this time, the terminal first receives channel information. Thus, by accessing the channel for a certain time, it is possible to receive only necessary data. For example, if you want to receive packets A, B, C, D and K, the time to access the channel is Ta + T1 + T4.

Since the channel information of the MOT BWS is a data packet having only a very small amount of information corresponding to a link of actual data transmission, the reception time of the channel information is much shorter than that of a general data packet. Thus, Ta + T1 + T4 generally has a much smaller value than T1 + T2 + T3 + T4. Therefore, the time required to receive the desired data through the MOT BWS service is saved, and since unnecessary data is not stored in the internal memory, the memory can be saved.

(iii) step of receiving information using the CDMA link field (steps S150 to S130);

Thereafter, the DMB portable terminal checks whether the user requests the provision of the second information (step S150). In this case, when the user requests the provision of the second information, the DMB portable terminal may be configured as described above at the request of the user. In the received page, the CDMA link field corresponding to the second information requested by the user is searched (step S160), and the connection is waited for connection with the CDMA channel using the corresponding CDMA link field. The CDMA link field contains link information of a received page.

The terminal requests a page corresponding to the CDMA link field through an uplink channel of the CDMA channel, receives and displays the page (step S180).

In the step S180, in the process of receiving the data packet after receiving the MOT BWS channel information, the step S180 is performed at a time when it is not necessary to access the DMB broadcast channel between receiving and receiving the packet (step S170). That is, in the case of receiving data packets A, B, C, D, and K in FIG. 2, MOT BWS channel information is received during the time of Ta, and A, B, C, and D is received during the time of T1. There is a certain amount of delay before the reception. During this connection delay time, the terminal accesses the CDMA channel to obtain information, and then, the user can take the desired page, store it in the internal memory, and return to the DMB broadcast channel to receive the next desired data packet, K.

As described above, the data scheduling information is obtained in advance through the BWS channel information, and the CDMA channel is accessed during the access delay time of the desired data packet, thereby obtaining information desired by the user. Accordingly, in using the BWS based on the push type service among the DMB-related services, the connection delay, which is a weak point of the push type service, is minimized by using the channel information of the MOT BWS channel and the CDMA channel together.

This information acquisition method can be applied not only to terrestrial DMB terminals but also to BWS service provision methods based on DMB services and MOT protocols.

Claims (8)

A method of receiving a broadcast web service (BWS) in a terrestrial DMB terminal, the method comprising: receiving and storing MOT BWS channel information from a BWS data broadcasting server at the terminal (a); (B) searching for the BWS channel including the first information from the BWS channel information when the user requests the provision of the first information; And (C) connecting to a BWS channel including the first information, receiving data of a corresponding page through a connected BWS channel, and displaying the received data on a screen. How to get BWS). The method of claim 1, If the user requests the provision of the second information, retrieving a CDMA link field corresponding to the second information from the received page according to the user's request; Requesting a page corresponding to the CDMA link field through an uplink channel of a CDMA channel (e); And And receiving (f) the requested page through the downlink channel of the CDMA channel and displaying the requested page on a screen. The method of claim 1 or 2, wherein in step (c), data other than the corresponding page data is not received. The method of claim 2, wherein the steps (e) and (f) are performed by the terminal accessing a CDMA channel while not receiving a data packet from a BWS channel. . The method of claim 1, wherein the BWS channel information includes information on scheduling data transmission of each BWS channel. The method of claim 5, wherein the CDMA link field indicates a link of a page. The method of claim 4, wherein the BWS channel information includes information on scheduling data transmission of each BWS channel. 8. The method of claim 7, wherein the CDMA link field indicates a link of a page.

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