KR20080012611A - Apparatus and method for transmitting and receiving multiplex broadcasting data using ultra wide band - Google Patents

Abstract

An apparatus and a method for transmitting and receiving multi-broadcasting data by using a UWB are provided to multiplex various types of data in the PPDU format of the UWB, transmit the data to the terminals of users, and process and reproduce selectively arbitrary data out of the multiplexed data in a user terminal receiving the data, so that the users can simply select and view desired types of data by using portable terminals. A method for transmitting multi-broadcasting data by using a UWB(Ultra Wide Band) comprises the following steps of: selecting plural source data and constructing each broadcasting frame(S12-S14); constructing headers for the constructed each broadcasting frame(S15); and multiplexing and transmitting the constructed header and each broadcasting frame in the PPDU(Presentation Protocol Data Unit) format of the UWB(S16).

Description

Apparatus and method for transmitting and receiving multiplex broadcasting data using ultra wide band}

1 illustrates a configuration of a general vehicle A / V device,

2 illustrates an embodiment of an apparatus for transmitting and receiving multicast data using ultra wide band according to the present invention.

3 illustrates an embodiment of multicast data transmitted and received according to the present invention.

4 is a flowchart illustrating an operation of a method for transmitting multicast data using ultra wide band according to the present invention.

5 is a flowchart illustrating an operation of a method for receiving multicast data using ultra wide band according to the present invention.

※ Explanation of code for main part of drawing

10: DMB / DAB receiver 11: disc player

12: TV Tuner 13: Radio Tuner

14: display unit 15: controller

16: keypad 17-20: speaker

30: UWB Multiplexer 31: UWB Transmitter

40: UWB Receiver 41: UWB Demultiplexer

300: telematics terminal 400, 500: UWB terminal

The present invention relates to an apparatus and method for transmitting and receiving multicast data using an ultra wide band. For example, in a telematics terminal mounted in a vehicle, various types of data are allocated to an ultra wide band (UWB). The present invention relates to an apparatus and method for transmitting and receiving multicast data using ultra wide band for transmitting and receiving to multiple user terminals.

1 illustrates a configuration of a general vehicle A / V device. For example, the vehicle A / V device includes a DMB / DAB receiver 10, a disc player 11, a TV tuner 12, Since the radio tuner 13, the display unit 14, the controller 15, the keypad 16, and the speakers 17 to 18 are configured to be included, the user operates the keypad 16 so that the user desires it. The type of data can be selected and viewed.

For example, the controller 15 operates and controls the DMB / DAB receiver 10 according to a user's request, so that a digital multimedia broadcasting (DMB) broadcast or digital audio broadcasting (DMB) desired by a user is desired. By selecting and receiving a broadcast, an audio or video is output and displayed.

In addition, the controller 15 controls the disc player 11 in response to a user's request, and records the A / A recorded on a desired DVD (Digital Versatile Disc) or CD (CD: Compact Disc). Select and play V data to output and display audio or video.

The controller 15 controls the TV tuner 12 or the radio tuner 13 according to a user's request, and selects and receives a desired TV (TV) broadcast program or a radio broadcast program. Audio or video will be displayed for output.

However, in a general vehicle A / V device, since any one type of data selected by the user is output and displayed through the display unit 14 and the speakers 17 to 20 as described above, for example, The problem is that several users on board must all watch the same type of data.

Accordingly, the present invention was created to solve the above problems, for example, various types of data provided from a radio tuner, a TV tuner, a disc player, a DM receiver, etc. in a telematics terminal mounted in a vehicle. To the terminal of various users located in the vehicle through the ultra wide band (UWB), and the user terminal receiving the received signal is capable of processing and reproducing any one data among various types of multiplexed signals. It is an object of the present invention to provide an apparatus and method for transmitting and receiving multicast data using ultra wide band.

According to an aspect of the present invention, there is provided a method for transmitting a multicast data using an ultra wide band, comprising: selecting a plurality of source data and configuring each broadcast frame; Constructing a header for each of the configured broadcast frames; And three steps of multiplexing the configured header and each broadcast frame in a PPW format of an ultra wide band (UWB).

In addition, the multi-broadcast data transmission apparatus using the ultra wide band according to the present invention selects a plurality of source data, configures each broadcast frame and a header, and then uses an ultra wide band (UWB) PPDU format. Multiple means for multiplexing; And transmitting means for transmitting the data of the multiplexed format through the ultra wide band.

In addition, the multi-broadcast data reception method using the ultra wide band according to the present invention, the first step of analyzing the header of the data frame is received multiplexed in the PPW format of the ultra wide band (UWB); And two steps of processing the selected signal by reproducing and outputting data of any one broadcast type selected by the user as a result of the analysis.

In addition, the apparatus for receiving multi-broadcast data using the ultra wide band according to the present invention comprises: receiving means for receiving data multiplexed and transmitted in a PPDU format of an ultra wide band (UWB); Selecting means for analyzing the header of the received data frame and selecting data of any one broadcast type selected by the user; And reproducing means for signal-processing and outputting the data of any one selected broadcast type.

The source data may be data provided from at least one of a radio tuner, a TV tuner, a disc player, and a DM receiver, and the broadcast frame includes any one or more of broadcast type, broadcast information, data length, and broadcast data. The header may include at least one of terminal identification information, broadcast type, and data length, and the terminal identification information is an ID of a telematics terminal for transmitting multicast data.

Hereinafter, exemplary embodiments of an apparatus and method for transmitting and receiving multicast data using ultra wide band according to the present invention will be described in detail with reference to the accompanying drawings.

First, the apparatus and method for transmitting multicast data using the ultra wide band according to the present invention can be applied to a telematics terminal which is widely used and commercialized as a car navigation terminal. For example, FIG. As shown in the figure, the telematics terminal 300 to which the present invention is applied further includes a UWB multiplexer 30 and a UWB transmitter 31 and is used in connection with a vehicle A / V device.

In addition, the apparatus and method for receiving multi-broadcast data using the ultra wide band according to the present invention may be applied to, for example, a mobile phone or a personal digital assistant (PDA), each of which is carried by several users in a vehicle. For example, as shown in FIG. 2, the UWB receiver 40 and the UWB demultiplexer 41 are further included in the cellular phone or personal digital assistant to which the present invention is applied.

Meanwhile, in the UWB multiplexer 30 of the telematics terminal 300, various types of source data provided by the vehicle A / V device, for example, a radio tuner 13, a TV tuner 12, Various source data provided from the disc player 11 and the DMB receiver 10 are multi-processed in a PPDU (PPDU) format of an ultra wide band (UWB).

For example, as illustrated in FIG. 3, the PPW of the wide band (UWB) includes a PLCP preamble (Physical Layer Convergence Procedure Preamble), a PLCP header, and a PSDU (PSDU) (100), the PSDU (100) is a frame payload (101), PC (FCS), tail bits (Tail Bit), Pad Bits (Pad Bits) It is composed.

The frame payload 101 is composed of a header 102 and one or more source data frames. For example, the DMB data frame 103 includes a corresponding DMB (DMB). It is composed of a broadcast type (Broadcasting Type) indicating that, the broadcast information (Broadcasting Type) indicating the broadcast program name, etc., a data length (Data Length) indicating the length of the data frame, and the corresponding DMB broadcast data.

The CD data frame 104 further includes a broadcast type indicating that the broadcast is a CD, broadcast information indicating an audio song name, a data length indicating the length of the data frame, and a corresponding CD. It consists of broadcast data.

On the other hand, the header is composed of a device ID (Device ID), broadcast type (Broadcasting Type), and the data length (Data Length) that is unique identification information of the transmitting device, the device ID is telematics The unique device ID given to the terminal is recorded.

In the broadcast type of the header, information for indicating that each data frame is DMB data, CD data, or the like is recorded, respectively, and the total data length of each data frame is recorded as the data length of the header. .

Meanwhile, the data multiplexed in the PPDU format of the ultra wide band as described above is transmitted through the UWB transmitter 31 of the telematics terminal. In the UWB receiver 40 additionally included in the cellular phone or personal information terminal that is being carried, the UWB receiver receives it.

The UWB demultiplexer 41 selects only one type of broadcast data selected by a user. For example, a user having a mobile phone to which the present invention is applied can select and watch a DMB broadcast. In addition, other users with a personal information terminal to which the present invention is applied can select and view the CD data, so that various users can easily select and view the desired type of data.

4 is a flowchart illustrating an operation of a method for transmitting multicast data using an ultra wide band according to the present invention. For example, as described above with reference to FIG. 2, the UWB multiplexer 30 and the UWB transmitter 31 are described. In the telematics terminal configured to further include), when the multicast transmission mode is set according to a user's request (S10), the user can select an interface by performing an interface operation with the controller 15 of the vehicle A / V device. A list of source data is displayed (S11).

For example, a list of various source data provided from the radio tuner 13, the TV tuner 12, the disc player 11, and the DM receiver 10 is displayed on a user interface (UI) menu screen. When the user selects and specifies a plurality of source data (S12), the telematics device selects the corresponding source data (S13).

On the other hand, in the UWB multiplexer 30, for example, when the user selects the DMB (DMB) broadcast and the CD (CD) data, only the DMB broadcast and the CD data of the various source data to be configured as a broadcast frame For example, as described above with reference to FIG. 3, the DMB data frame may include a broadcast type indicating that the broadcast is a DMB, broadcast information indicating a broadcast program name, and the like, and a corresponding data frame. And a data length indicating the length of the DMB broadcast data.

In addition, as described above with reference to FIG. 3, the CD data frame includes a broadcast type indicating that the broadcast is a CD, broadcast information indicating an audio song name, etc., and a data length indicating the length of the data frame. And the corresponding CD broadcast data.

Meanwhile, the UWB multiplexer 30 configures a header corresponding to each broadcast frame of the DMB data frame and the CD data frame (S15). As described above with reference to FIG. 3, the header is transmitted. It consists of a device ID which is unique identification information of the side device, a broadcast type, and a data length.

Then, after configuring the header and each broadcast frame configured as described above for the PPW of the UWB, a series of UWB multicasting transmitted through the UWB transmitter 31 is performed (S16). When the multicast mode is released (S17), any corresponding operation requested by the user is performed (S18).

FIG. 5 is a flowchart illustrating a method for receiving multi-broadcast data using ultra wide band according to the present invention. For example, as described above with reference to FIG. 2, the UWB receiver 40 and the UWB demultiplexer 41 are described. In a UWB terminal, such as a mobile phone or personal information terminal, which is additionally included, when a multicast reception mode is set according to a user's request (S30), data of a PPDU format transmitted through UWB is transmitted. It will be received (S31).

As described above with reference to FIG. 3, data frame header information is analyzed within a frame payload of a PSDU included in the received PPDU format data. For example, when the telematics terminal transmits the DMB data and the CD data as the multicast data, the UWB terminal analyzes the header information so that the currently received broadcast is called the DMB data and the CD data. The broadcast list is displayed (S33).

On the other hand, in the UWB terminal, when the user selects a certain broadcast type (S34), for example, when the user selects a DMB broadcast, the UWB demultiplexer 41 is included in the frame payload. Only data frames corresponding to DM broadcasts are selected and output from each data frame (S35).

On the other hand, when the user selects the CD data, the UWB demultiplexer 41 selects and outputs only data frames corresponding to the CD data among the data frames included in the frame payload, and only the screened data frames. This signal is processed and reproduced and output as audio, video, and the like (S36).

In addition, when the multicast reception mode is released (S37), the user may perform any corresponding operation requested by the user (S38), so that various users in the vehicle may use UWB such as a mobile phone or personal information terminal they carry. By using the terminal, it is possible to simply select and watch the desired type of broadcast.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

The apparatus and method for transmitting and receiving multicast data using the ultra wide band according to the present invention, which is constructed and constructed as described above, may include, for example, a radio tuner, a TV tuner, a disc player, a DMB in a telematics terminal mounted in a vehicle. Multiple types of data provided from a receiver or the like are multiplexed into the UWB PPDU format, and then transmitted to and received from the terminals of various users in the vehicle through the ultra wide band. By selecting and reproducing an arbitrary one of multiplexed data types, the user terminal can easily select and view various types of data by using a terminal carried by various users in the vehicle. Very useful invention Will.

Claims (24)

Selecting a plurality of source data and configuring each broadcast frame; Constructing a header for each of the configured broadcast frames; And And multiplexing and transmitting the configured header and each broadcast frame in a PPW format of an ultra wide band (UWB). The method of claim 1, When the multi-casting mode is set, the method further comprises the step of displaying a selectable source data list. The method of claim 1, And the source data is data provided from at least one of a radio tuner, a TV tuner, a disc player, and a DM receiver. The method of claim 1, And the broadcast frame includes any one or more of a broadcast type, broadcast information, data length, and broadcast data. The method of claim 1, The header includes at least one of terminal identification information, broadcast type, and data length. The method of claim 5, And the terminal identification information is an ID of a telematics terminal for transmitting the multicast data. A plurality of means for selecting a plurality of source data, constructing each broadcast frame and a header, and then multiplexing them in an ultra wide band (UWB) PPDU format; And And a transmission means for transmitting the data of the multiplexed format through the ultra wide band. The method of claim 7, wherein And a display means for displaying a selectable source data list when the multicast mode is set. The method of claim 7, wherein And the source data is data provided from at least one of a radio tuner, a TV tuner, a disc player, and a DM receiver. The method of claim 7, wherein And the broadcast frame includes any one or more of a broadcast type, broadcast information, data length, and broadcast data. The method of claim 7, wherein And the header includes at least one of terminal identification information, broadcast type, and data length. The method of claim 11, And the terminal identification information is an ID of a telematics terminal for transmitting the multicast data. Analyzing a header of a data frame multiplexed and received in a PPDU format of an ultra wide band (UWB); And And analyzing the data of any one broadcast type selected by the user as a result of the analysis. The method of claim 13, The method of receiving multiple broadcast data using an ultra wide band, characterized by further comprising displaying a user selectable broadcast list. The method of claim 13, And the broadcast type data is any one or more of a radio tuner, a TV tuner, a disc player, and a DM receiver. The method of claim 13, The data frame includes at least one of a broadcast type, broadcast information, data length, and broadcast data. The method of claim 13, The header may include at least one of terminal identification information, broadcast type, and data length. The method of claim 17, The terminal identification information is an ID of a telematics terminal for transmitting multicast data. Receiving means for receiving data multiplexed and transmitted in a PPDU format of an ultra wide band (UWB); Selecting means for analyzing the header of the received data frame and selecting data of any one broadcast type selected by the user; And And reproducing means for signal-processing and reproducing and outputting the data of any one selected broadcast type. The method of claim 19, And a display means for displaying a user selectable broadcast list. The method of claim 19, And the broadcast type data is any one or more of a radio tuner, a TV tuner, a disc player, and a DM receiver. The method of claim 19, The data frame includes at least one of a broadcast type, broadcast information, data length, and broadcast data. The method of claim 19, And the header includes at least one of terminal identification information, broadcast type, and data length. The method of claim 23, wherein And the terminal identification information is an ID of a telematics terminal for transmitting the multicast data.

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