WO2007097398A1

WO2007097398A1 - Radio communication device and reproduction position display method

Info

Publication number: WO2007097398A1
Application number: PCT/JP2007/053290
Authority: WO
Inventors: Tadayuki Watanabe
Original assignee: Kyocera Corporation
Priority date: 2006-02-24
Filing date: 2007-02-22
Publication date: 2007-08-30
Also published as: JP5294538B2; JP2007228426A

Abstract

A radio communication terminal (200A) includes: an information acquisition unit for acquiring a reproduction position identifier for identifying a position of a unit content currently reproduced by a content reproduction unit, within a content; and a display processing unit for using the acquired reproduction position identifier to cause a display unit (217) to display the currently reproduced position indicating the position of the unit content currently reproduced by the content reproduction unit, within the content.

Description

Specification

Wireless communication apparatus and playback position display method

Technical field

TECHNICAL FIELD [0001] The present invention relates to a wireless communication apparatus that reproduces content transmitted from a radio base station to a plurality of destinations, and a reproduction position display method that displays a reproduction position of the content.

Background art

[0002] In mobile communication systems using code division multiple access (CDMA), various communication services using high-speed data communication functions such as lxEV-DO (lx evolution-data only) are provided. .

[0003] Also, in recent years, in mobile communication systems using lxEV-DO, content composed of moving images or the like is simultaneously transmitted to a plurality of wireless communication devices using a communication channel (for example, a traffic channel). BCMCS (broadcast / multicast services) for transmission to a wireless communication terminal (for example, a wireless communication card module connected to a car navigation system) is also provided (for example, Non-Patent Document 1).

[0004] In BCMCS, content is transmitted from a radio base station using a communication channel in response to a content transmission request from a radio communication device or according to a content transmission schedule.

[0005] If transmission of content has already started, the wireless communication apparatus receives the content by broadcast (or manocast), and starts playback from the middle of the content.

Non-Patent Document 1: "CDMA2000 High Rate Broadcast-Multicast Packet Data Air Interface Specification (C.S0054-0 Version 1.0)-Section 1.4: Broadcast Channels, 3GPP 2, February 2004

Disclosure of the invention

[0006] As described above, the wireless communication device receives the content that has already been transmitted by broadcast (or multicast), and plays it back in the middle of the content. To start.

[0007] In this case, there is a problem that it is difficult for the user of the wireless communication apparatus to recognize the current reproduction position in the entire content (from the beginning to the end).

Therefore, the present invention has been made in view of such a situation, and in the case where the same content transmitted to a plurality of destinations is received and played back, It is an object of the present invention to provide a wireless communication apparatus and a playback position display method that can display the current playback position.

In order to solve the above-described problem, the present invention has the following features. First, the first feature of the present invention is composed of a plurality of unit contents (unit contents U), and is transmitted from a radio base station (for example, radio base station 11 OA) to a plurality of destinations simultaneously. A content receiving unit (wireless communication unit 201) that receives the content data CD, and a content playback unit (content playback unit) that plays back the content (content C) constituted by the content received by the content receiving unit. 205), a display unit (display unit 217) for displaying a predetermined image, and the unit content force currently played by the content playback unit to specify which position of the content it corresponds to Using the information acquisition unit (content information acquisition unit 207) for acquiring position specifying information and the reproduction position specifying information acquired by the information acquisition unit, the container The unit content power that is currently played back by the content playback unit! A display processing unit (control unit) that displays the current playback position (image P1) indicating which position of the content corresponds to the display unit. 203) and a wireless communication device (for example, wireless communication terminal 200A).

[0010] According to such a wireless communication device, the unit content power currently being played back can be specified as to the position of the content before the last power of the content. Information is acquired. In addition, using the playback position specification information, the unit content power currently played by the content playback unit displays the current playback position that indicates which position it corresponds to before the beginning power of the content. Displayed in the section.

[0011] For this reason, the user of the wireless communication apparatus can transmit the same communication transmitted to a plurality of destinations. When receiving and playing back a content, it is easy to find the current playback position in the entire content (from the beginning to the end), especially when receiving content that has already been transmitted. Can be recognized.

[0012] A second feature of the present invention relates to the first feature of the present invention, wherein the unit content includes a sequence number (sequence number SN), and the information acquisition unit includes the sequence number, and the The gist is to acquire content time information indicating the entire time of the content as the reproduction position specifying information.

[0013] A third feature of the present invention relates to the second feature of the present invention, wherein the unit content further includes a content identifier (content identifier CID) for identifying the content, and the information acquisition unit includes the information acquisition unit, The gist is to acquire program data (for example, program data PD1) in which a content identifier is associated with a transmission schedule of the content, and to acquire the acquired program data and the content time information.

[0014] A fourth feature of the present invention relates to the first feature of the present invention, wherein when the content received by the content receiver includes a transmission error, the information acquisition unit Error position specifying information for specifying which position of the unit content including the error corresponds to the position is acquired, and the display processing unit includes the transmission error using the error position specifying information. Therefore, the gist is to display on the display unit an error position indicating which position of the content the unit content corresponds to.

[0015] A fifth feature of the present invention relates to the first feature of the present invention, further comprising a content storage unit (storage unit 213) for storing the content data received by the content reception unit, wherein the display processing The gist is to display the area stored in the content storage unit in the content on the display unit.

[0016] A sixth feature of the present invention relates to the first feature of the present invention, and is capable of handing off from the radio base station to another radio base station (for example, the radio base station 110B) different from the radio base station. If the possibility is detected by the handoff detection unit (node-off processing unit 209) that detects that the content is present and the handoff detection unit, the content reception unit may not be able to receive the content. Informing unit to notify that there is (display unit 217) And further comprising.

[0017] A seventh feature of the present invention is that a content receiving unit that is configured with a plurality of unit content powers and that receives content transmitted from a radio base station to a plurality of destinations simultaneously, and the content receiving unit includes A playback position display method using a wireless communication device including a content playback unit that plays back the received content in real time and a display unit that displays a predetermined image, and is currently played back by the content playback unit. A step of acquiring reproduction position specifying information specifying which position of the unit content corresponds to the content (for example, step S50), and the content reproduction unit using the acquired reproduction position specifying information. The current playback position indicating the position of the unit content that is currently being played back corresponds to the position of the content. Step of displaying the radical 113 (e.g., step S80) is summarized in that and a.

[0018] An eighth feature of the present invention relates to the seventh feature of the present invention, wherein the unit content includes a sequence number, and in the step of obtaining the reproduction position specifying information, the sequence number, and The gist is to acquire content time information indicating the entire time of the content as the reproduction position specifying information.

[0019] A ninth feature of the present invention relates to the eighth feature of the present invention, wherein the unit content further includes a content identifier for identifying the content, and in the step of obtaining the reproduction position specifying information, The gist is to acquire program data in which a content identifier is associated with a transmission schedule of the content, and to acquire the content time information from the acquired program data.

[0020] A tenth feature of the present invention relates to the seventh to ninth features of the present invention, wherein if the content received by the content receiver includes a transmission error, the playback position feature is provided. In the step of acquiring constant information, in the step of acquiring error position specifying information for specifying which position of the content the unit content including the transmission error corresponds to and displaying on the display unit, the error The gist is to display on the display unit an error position indicating which position of the content the unit content including the transmission error corresponds to using the position specifying information.

[0021] An eleventh feature of the present invention relates to the seventh feature of the present invention, in which the content receiving unit receives it. The step of storing the received content (step S220) is further provided, and the step of displaying on the display unit is to display an area of the content stored in the content storage unit on the display unit.

[0022] A twelfth feature of the present invention relates to the seventh feature of the present invention, and is a step for detecting that there is a possibility of handoff from the radio base station to another radio base station different from the radio base station. (Step S320), and if the possibility is detected in the detecting step, notifying that there is a possibility that the content receiving unit may not be able to receive the content, and (step S330) Is further provided.

[0023] According to the feature of the present invention, when the same content transmitted to a plurality of destinations is received and played back, the current playback position in the entire content is displayed. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a wireless communication device and a playback position display method according to the first embodiment;

FIG. 1 is an overall schematic configuration diagram of a mobile communication system according to an embodiment of the present invention.

FIG. 2 is a functional block configuration diagram of a wireless communication apparatus according to an embodiment of the present invention.

FIG. 3 is an operation flowchart of the wireless communication apparatus according to the embodiment of the present invention.

FIG. 4 is an operation flowchart of the wireless communication apparatus according to the embodiment of the present invention.

FIG. 5 is an operation flowchart of the wireless communication apparatus according to the embodiment of the present invention.

FIG. 6 is an operation flowchart of the wireless communication apparatus according to the embodiment of the present invention.

FIG. 7 is a configuration diagram of content data according to the embodiment of the present invention.

FIG. 8 is a diagram showing an example of a screen displayed in the wireless communication apparatus according to the embodiment of the present invention.

FIG. 9 is a diagram showing an example of a screen displayed on the wireless communication apparatus according to the embodiment of the present invention.

FIG. 10 is a diagram showing an example of a screen displayed in the wireless communication apparatus according to the embodiment of the present invention.

FIG. 11 is an operation flow diagram of a wireless communication apparatus according to a modified example of the present invention. FIG. 12 is a configuration diagram of content data according to a modified example of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

Next, an embodiment of the present invention will be described. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions are different from actual ones.

Accordingly, specific dimensions and the like should be determined in consideration of the following description. Of course, the drawings include parts with different dimensional relationships and ratios! /.

[0027] (Overall schematic configuration of mobile communication system)

FIG. 1 is an overall schematic configuration diagram of a mobile communication system 10 including a wireless communication device according to the present embodiment.

The mobile communication system 10 is a mobile communication system using code division multiple access (CDMA). In the mobile communication system 10, wireless communication is performed between the wireless base stations 110A and 110B and the wireless communication terminals 200A and 200B. Note that the numbers of radio base stations and radio communication terminals constituting the mobile communication system 10 are not limited to the numbers shown in FIG.

[0029] Radio communication terminals 200A and 200B (wireless communication apparatuses) are mobile phone terminals. The wireless communication terminals 200A and 200B have a function of receiving content data CD (see FIG. 7) composed of moving images via the traffic channel TCH.

[0030] Specifically, the radio communication terminals 200A and 200B have the same power as BCMCS (broadcast / multicast services) specifications, and are transmitted simultaneously to a plurality of destinations using broadcast or multicast. Content C (see Figure 7) can be received.

[0031] Radio base station 110A (or 110B) transmits content C in response to a content transmission request transmitted by radio communication terminal 200A or radio communication terminal 200B or according to a content data CD transmission schedule. .

In the present embodiment, the wireless communication card module 250 connected to the car navigation system (not shown) mounted on the automobile 50 is also connected to the car navigation system. By carrying it, functions similar to those of the radio communication terminals 200A and 200B can be provided.

Radio base station 110 A, BCMCS controller 120 and content server 130 are connected by communication network 100.

[0034] The BCMCS controller 120 controls transmission of the content C stored in the content server 130 to the wireless communication terminals 200A and 200B and the wireless communication card module 250. Specifically, the BCMCS controller 120 executes transmission time for each content data CD, control of the transmission path of the content data CD by BCMCS, and the like.

[Logical block configuration of wireless communication apparatus]

FIG. 2 is a functional block configuration diagram of the radio communication terminal 200A constituting the radio communication apparatus according to the present embodiment.

As shown in FIG. 2, radio communication terminal 200A includes radio communication unit 201, control unit 203, content reproduction unit 205, content information acquisition unit 207, handoff processing unit 209, error processing unit 211, and storage unit 213. And an operation unit 215 and a display unit 217.

[0037] Radio communication terminal 200B also has the same functional block configuration as radio communication terminal 200A. In addition, the wireless communication card module 250 (see FIG. 1) does not include the operation unit 215 and the display unit 217, but the function is provided by a car navigation system (not shown) installed in the automobile 50. .

[0038] In the following, portions related to the present invention will be mainly described. Therefore, it should be noted that the radio communication terminal 200A may include a logical block (such as a power supply unit) that is not shown in the drawing or that is omitted in order to realize the function as the radio communication terminal 200A. .

[0039] Radio communication section 201 transmits and receives radio signals according to CDMA. In particular, in the present embodiment, radio communication section 201 sequentially receives content C transmitted from a radio base station (for example, radio base station 110A) to a plurality of destinations via traffic channel TCH. . In the present embodiment, the wireless communication unit 201 constitutes a content receiving unit.

FIG. 7 is a configuration diagram of the content data CD constituting the content C. As shown in Fig. 7, content C is also composed of multiple unit content U forces. Specifically, the unit code The content U is composed of a content data CD including header information HD.

[0041] The header information HD includes a sequence number SN assigned to each content data CD, and a content identifier CID for identifying the content C. The content identifier CID is constituted by the name (program name) of the content C. Note that the content identifier CID is not necessarily included in the header information HD of all content C! /!

[0042] Further, the sequence number SN may be assigned to each of a plurality of content data CDs, not to each content data CD. Alternatively, a sequence number assigned by an IP packet or streaming protocol that is powerfully processed by the content data CD may be used.

[0043] Control section 203 controls each functional block of radio communication terminal 200A. In particular, in the present embodiment, the control unit 203 determines whether the content C currently being played back by the content playback unit 205, specifically, the unit content U is between the start power and the end of the content C. The “current playback position” indicating which position corresponds is displayed on the display unit 217 (see FIG. 8).

Further, the control unit 203 can cause the display unit 217 to display an area stored in the storage unit 213 in the content C.

Specifically, the control unit 203 is the reproduction position specifying information acquired by the content information acquisition unit 207, in this embodiment, the sequence number SN, the content identifier CID, and the program data PD1, PD2 (FIG. 9 ( Based on a) and (b)), the display unit 217 displays the current playback position of the content C currently being played back by the content playback unit 205.

In the present embodiment, the control unit 203 constitutes a display processing unit. The specific display method of the current playback position of content C will be described later.

[0047] In addition, when the operation unit 215 receives a stop request for requesting the stop of the reproduction of the content C, the control unit 203 determines that the content C is not stored in the storage unit 213 when the entire content C is not stored. Until the entire data is stored in the storage unit 213, the storage of the content data CD received by the wireless communication unit 201 in the storage unit 213 can be continued.

[0048] The content playback unit 205 plays back the content C constituted by the content data CD received by the wireless communication unit 201 in real time. Specifically, the content playback unit 20 5 decrypts the content data CD and causes the display unit 217 to display the content C.

[0049] The content information acquisition unit 207 specifies the portion of the content C currently being played by the content playback unit 205 (unit content U) between the beginning and the end of the content C. The reproduction position specifying information to be acquired is acquired. In the present embodiment, the content information acquisition unit 207 constitutes an information acquisition unit.

[0050] In the present embodiment, the content information acquisition unit 207 acquires the sequence number SN, the content identifier CID (see Fig. 7), and the program data PD1, PD2 (see Figs. 9 (a) and 9 (b)). To do.

[0051] FIGS. 9A and 9B show examples of program data in which a plurality of contents C, a content identifier CID for identifying the contents C, and a transmission schedule for the contents C are associated with each other.

[0052] In the program data PD1, “Today's weather” with a distribution time of 3 minutes is repeatedly transmitted between 6:00 and 8:00, and between 8:00 and LO: 00 , "This morning's youth" with a delivery time of 10 minutes is sent repeatedly.

[0053] Program data PD2 is transmitted between 6:00 and 8:00, “Today's weather” with a distribution time of 3 minutes in 1 channel (lch), and 2 channels (2ch ) Indicates that “recommended information” with a delivery time of 10 minutes is repeatedly sent.

[0054] The content information acquisition unit 207 acquires the program data PD1 and the program data PD2, and acquires the total time (content time information) from the top to the end of the content C from the acquired program data. For example, if it is “Today's weather”, the content information acquisition unit 207 acquires that the total time is 3 minutes.

[0055] In addition, the content information acquisition unit 207, when the transmission error is included in the content C received by the wireless communication unit 201, the unit content U including the transmission error corresponds to any position of the content C. It is possible to acquire error position specifying information for specifying the force to perform. Specifically, the content information acquisition unit 207 receives information on a unit content U including a transmission error (for example, the sequence number SN) from the error processing unit 211, and acquires error position specifying information.

[0056] Handoff processing section 209 executes processing related to handoff of radio communication terminal 200A. In particular, in the present embodiment, content data received by the wireless communication terminal 200A It is detected that there is a possibility of handoff from a radio base station (eg, radio base station 110A) that is a CD transmission source to another radio base station (eg, radio base station 110B) different from the radio base station. In the present embodiment, the handoff processing unit 209 constitutes a handoff detection unit.

[0057] The error processing unit 211 executes processing related to a transmission error on the content C configured by the content data CD received by the wireless communication unit 201. In particular, in this embodiment, when the content C includes a transmission error, the error processing unit 211 can re-receive the unit content U including the transmission error. That is, the error processing unit 21 1 does not include a transmission error! /, And does not re-receive the unit content U!

[0058] Also, the error processing unit 211 can transmit information (for example, sequence number SN) of the unit content U including a transmission error to the content information acquisition unit 207.

Storage unit 213 stores content data CD received by wireless communication unit 201.

In the present embodiment, the storage unit 213 constitutes a content storage unit.

[0060] The operation unit 215 includes operation devices such as various keys operated by the user of the radio communication terminal 200A. In particular, in the present embodiment, the operation unit 215 accepts a stop request for stopping the reproduction of the content C.

[0061] The display unit 217 is configured by a small display. The display unit 217 displays predetermined information based on the control by the control unit 203.

In particular, in the present embodiment, the display unit 217 is a content playback state display area A1 (formed at the bottom of the display unit 217 indicating the current playback position of the content C that is currently played back by the content playback unit 205 ( (See Fig. 8). Further, the display unit 217 displays the position of the unit content U including the transmission error (error position) and the content C area already stored in the storage unit 213 in the content reproduction state display area A1. be able to.

[0063] In addition, display unit 217 may not be able to receive content data CD by radio communication unit 201 if the handoff processing unit 209 detects the possibility of handoff to another radio base station. Can be notified to the user. In the present embodiment, the display unit 217 constitutes a notification unit.

[0064] (Operation of Wireless Communication Device) Next, the operation of radio communication terminal 200A described above will be described. Specifically, (1) Display operation of current playback position of content C, (2) Operation when an error occurs when receiving content data CD, (3) When playback stop request of content C is made And (4) operation when there is a possibility of handoff from the radio base station that is the source of the content data CD to another radio base station.

[0065] (1) Display operation of current playback position of content C

FIG. 3 is a flowchart showing the operation of displaying the current playback position of content C by the wireless communication terminal 200A. As shown in FIG. 3, in step S10, radio communication terminal 200A determines whether or not content C program data has been received. Specifically, the wireless communication terminal 200A determines whether or not the program data PD1 shown in FIG. 9A or the program data PD2 shown in FIG.

[0066] If the program data has not been received! (NO in step S10), the wireless communication terminal 200A displays the content C (for example, “Today's weather”) viewed by the user in step S20! Get the content identifier CID of.

[0067] In step S30, the radio communication terminal 200A, based on the acquired content identifier CID of the content C, program data related to the content C (eg, program data P D1) or the total time of the content C (3 minutes) ) Is received from the content server 130.

[0068] When the program data is received ("program data" in step S30), the wireless communication terminal 200A determines whether the entire content C is based on the contents of the received program data PD1. Get time (3 minutes).

[0069] When the information indicating the total time of the content C is received ("total time" in step S30), in step S50, the radio communication terminal 200A, based on the received information, the total time of content C ( 3 minutes). In this case, radio communication terminal 200A (content information acquisition unit 207) uses sequence number SN and information (content time information) indicating the entire time of content C as reproduction position specifying information.

[0070] In step S60, radio communication terminal 200A obtains sequence number SN (see FIG. 7) included in the received content data CD. [0071] In step S70, the wireless communication terminal 200A calculates the elapsed playback time of the content C based on the acquired sequence number SN and the total time (3 minutes) of the content C.

[0072] Specifically, radio communication terminal 200A, based on the value of sequence number SN, is the content C power that is currently playing, that is, the entire time of content C power, that is, the head power of content C until the end. Determine whether it corresponds to the position of. Note that the sequence number SN is assigned according to a certain standard (for example, incremented for each content data CD or a predetermined number of content data CDs).

In step S80, radio communication terminal 200A displays the “current playback position” of content C based on the calculated playback elapsed time.

Here, FIG. 8 shows an example of a screen displayed on display unit 217 of radio communication terminal 200A in step S80. As shown in FIG. 8, a content playback state display area A1 is formed below the display unit 217. The left end of the content playback status display area A1 corresponds to the top position of content C. The right edge of the content playback status display area A1 corresponds to the end of content C.

[0075] The image P1 is displayed at the current playback position of the content C that is currently played back on the display unit 217, that is, between the partial power of the content C that is currently played back and the beginning power of the content C. It is an image which shows whether it corresponds to position.

[0076] The user of the wireless communication terminal 200A, based on the image Pl, the left end corresponds to the top position of the content C, and the right end of the content playback state display area A1 corresponds to the end of the content C. Thus, the display unit 217 can recognize the current playback position of the content C that is currently played!

[0077] Image P2 shows a portion of content C that radio communication terminal 200A has not received. Image P3 shows a portion of content C that wireless communication terminal 200A has already received and stored in storage unit 213. When radio communication terminal 200A starts receiving content C that has already started transmission by a radio base station (for example, radio base station 11 OA) halfway (symbol S in the figure), as shown in image P3. In addition, the partial force of the content C located on the right side of the image P1 indicating the current playback position, that is, after the current playback position, is already stored in the storage unit 213. In some cases.

[0078] (2) Operation when an error occurs when receiving the content data CD

FIG. 4 is an operation flow diagram of the wireless communication terminal 200A when an error (specifically, a transmission error) occurs when content is received. As shown in FIG. 4, in step S110, radio communication terminal 200A determines the force / force in which an error has occurred in the received content data CD in a predetermined cycle.

[0079] If an error occurs in the content data CD (YES in step S110), step S

At 120, radio communication terminal 200A stores the location where the error has occurred (specifically, in which unit content U the error has occurred).

Next, in step S130, radio communication terminal 200A determines whether or not reception of all content data CDs that constitute content C is completed.

[0081] When reception of all content data CDs is completed (YES in step S130), in step S140, radio communication terminal 200A determines whether or not an error is included in content data CD.

[0082] If all content data CDs have been received!

), Wireless communication terminal 200A repeats the processing from step S110.

[0083] If an error is included in the content data CD (YES in step S 140), in step S150, the wireless communication terminal 200A determines that content C includes an error.

, And the error part, specifically, the necessity of re-reception of the unit content U including the error is displayed. Radio communication terminal 200A may display the position (error position) of unit content U including a transmission error in content playback status display area A1 (see FIG. 8)! / ヽ

Here, FIG. 10A shows an example of a screen displayed in step S150. As shown in FIG. 10 (a), the user determines whether or not the unit content U including the error needs to be received again based on the screen example.

[0085] On the other hand, if the content data CD does not contain an error (NO in step S140), radio communication terminal 200A ends the process.

[0086] In step S160, radio communication terminal 200A receives the error part again by the user. Judgment is made on whether or not there is a request for trust.

[0087] When there is a request for re-reception of the error part (YES in step S160), in step S170, radio communication terminal 200A re-receives unit content U including the error. Furthermore, the radio communication terminal 200A stores the re-received part (unit content U) as the storage unit 21′fe.

On the other hand, when there is no request for re-reception of the error part (NO in step S 160), radio communication terminal 200 A ends the process.

[0089] In the operation flow shown in FIG. 4, it is assumed that the content data CD constituting the content C is repeatedly transmitted, and the force content data CD is configured to re-receive the unit content U including an error. If not repeatedly transmitted, the radio communication terminal 200A may request the content server 130 to retransmit the unit content U including an error.

[0090] (3) Operation when a content C playback stop request is made

FIG. 5 is an operation flowchart of the wireless communication terminal 200A in the operation when the content C reproduction stop request is made. As shown in FIG. 5, in step S210, radio communication terminal 200A receives a content data CD transmitted by a radio base station (for example, radio base station 110A).

In step S220, radio communication terminal 200A stores received content data CD in storage unit 213.

[0092] In step S230, radio communication terminal 200A reproduces content C using the received content data CD. Specifically, the wireless communication terminal 200A decodes the content data CD, displays a moving image on the display unit 217, and outputs an audio signal from a speaker (not shown).

[0093] In step S240, radio communication terminal 200A determines whether or not it has received a request to stop playback of content C. Specifically, radio communication terminal 200A accepts a content C reproduction stop request by the user performing a predetermined operation using operation unit 215.

[0094] When a request to stop playback of content C is accepted (YES in step S 240), step In S250, radio communication terminal 200A stops the reproduction of content C.

[0095] If there is no request to stop playback of content C (NO in step S240), the wireless communication terminal 20

The OA repeats the process from step S230.

[0096] In step S260, radio communication terminal 200A determines whether all the content data CDs constituting content C have been received.

[0097] If all the content data CDs have been received! (NO in step S260), in step S270, the wireless communication terminal 200A receives and stores the content data CD constituting the content C. continue. In other words, reception continues until the entire content C is stored. You may ask the user whether you are able to continue receiving and storing the content data CD.

[0098] On the other hand, if all content data CDs have been received (YES in step S260)

), The wireless communication terminal 200A ends the process without continuing the reception of the content data CD constituting the content C.

[0099] (4) Operation when there is a possibility of handing off to another radio base station

Fig. 6 shows a radio communication terminal 2 when there is a possibility of handing off to another radio base station.

It is an operation | movement flowchart of 00A. As shown in FIG. 5, in step S310, wireless communication terminal 200A receives content data CD.

In step S320, radio communication terminal 200A determines whether or not the received signal strength (RSSI) of the radio signal from radio base station 110A that transmits content data CD is equal to or less than a predetermined threshold value.

[0101] When RSSI is equal to or lower than a predetermined threshold (YES in step S320), in step S330, radio communication terminal 200A may handoff from radio base station 110A to another radio base station (for example, radio base station 110B). A warning is displayed to prompt the user to stop moving.

[0102] Here, FIG. 10 (b) shows an example of a screen displayed in step S330. As shown in FIG. 10 (b), based on the screen example, the user recognizes that there is a possibility of handoff and that reception of the content data CD cannot be continued due to the handoff. [0103] Next, in step S340, the radio communication terminal 200A determines whether or not reception of all the content data CDs constituting the content C has been completed.

[0104] When reception of all content data CDs is completed (YES in step S340), radio communication terminal 200A ends the process.

[0105] On the other hand, when reception of all content data CDs has not been completed (NO in step S340), radio communication terminal 200A repeats the processing from step S310.

[0106] (Action 'effect)

According to the wireless communication terminal 200A, playback position specifying information (sequence) that can specify the position of the partial power content C of the unit content U that is currently being played back can be specified up to the end. Number SN, content identifier CID and number data PD1, PD2) are acquired.

[0107] Furthermore, using the playback position specifying information, the current playback indicating which position the unit content U currently played back by the content playback unit 205 corresponds to before the last power of the content C corresponds to the current playback. The position is displayed on the display unit 217.

[0108] For this reason, when the user of the wireless communication terminal 200A receives and reproduces the content C transmitted to a plurality of destinations, in particular, the content C that has already been transmitted is displayed from the middle. Even when it is received, the current playback position in the entire content C (from the beginning to the end) can be easily recognized.

[0109] According to radio communication terminal 200A, content C is divided into a plurality of unit contents U. Therefore, when a transmission error occurs when content C is received, only unit contents U including the error part are included. Can be re-received.

[0110] That is, according to the radio communication terminal 200A, radio resources such as the traffic channel TCH can be released after re-reception of the unit content U including an error part, so that radio resources are efficiently used. be able to.

[0111] According to the wireless communication terminal 200A, when the stop request for stopping the reproduction of the content C of the user is received, if the entire content C is not stored in the storage unit 213, the entire content C is stored. The storage of the content C received by the wireless communication unit 201 in the storage unit 213 is continued until it is stored in the unit 213. [0112] For this reason, the entire content C that the user is unaware of is stored in the storage unit 213, and after the entire content C is stored in the storage unit 213, the user's request can be made without using radio resources. In response, the content C stored in the storage unit 213 can be reproduced.

[0113] According to radio communication terminal 200A, if it is detected that radio base station 110A that transmits content data CD can be handed off to another radio base station, content data CD may not be received. Is notified to the user.

[0114] When the user is informed in advance that there is a possibility that the content data CD cannot be received, the user who wants to continue playing the content C stops moving, so the radio communication terminal 200A The content data CD can be received more reliably.

[0115] (Other Embodiments)

As described above, the contents of the present invention have been disclosed through one embodiment of the present invention. However, it should not be understood that the description and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments will be apparent to those skilled in the art.

[0116] For example, the display method of the current playback position of content C can be changed as follows. FIG. 11 shows an example of changing the display operation of the current playback position by the wireless communication terminal 200A. FIG. 12 is a configuration diagram of the content data CD 1 that configures the content C1 according to this modification. In the following description, differences from the above-described embodiment of the present invention will be mainly described.

[0117] As shown in FIG. 11, in step S410, the radio communication terminal 200A receives the content data CD transmitted by the radio base station (eg, radio base station 110A).

In step S420, radio communication terminal 200A obtains sequence number SN included in the received content data CD.

[0119] In step S430, radio communication terminal 200A calculates the elapsed playback time of content C based on the obtained sequence number SN and the playback unit time of unit content U.

Specifically, radio communication terminal 200A has sequence number SN (for example, content data The increment of playback time for content C is calculated based on the playback unit time (for example, 1 second) of unit content U (incremented for each data CD or for each predetermined number of content data CDs). For example, if the sequence number SN of the content data CD is 100, it is calculated that the content data CD being played has passed 100 seconds from the beginning of the content C.

[0121] In step S440, radio communication terminal 200A displays the current playback position of content C based on the calculated playback elapsed time. Note that the display method of the current playback position on the display unit 217 is the same as in the above-described embodiment of the present invention (see step S80 in FIG. 3).

[0122] Also, in the content data CD, information directly indicating which position corresponds to the position from the beginning to the end of the content C (for example, “1 minute 00 second to 1 minute 1 second Z3 "Min 00 seconds") may be included!

[0123] Further, based on the sequence number SN of the content data CD (for example, 100) and the sequence number SN of the first and last content data CD of the content C (for example, the first = 1, the last = 1000), Calculate the current playback position of content C (for example, (100—

1) Z (1000-1)) and display.

[0124] The display method of "current playback position" in the above-described embodiment is an example. For example, the current playback position is displayed by displaying the total time of content C and the elapsed time from the beginning of content C. Even so.

[0125] In the above-described embodiment, the traffic channel TCH is used to transmit the content data CD. For transmission of the content data CD, another channel (for example, a broadcast channel for distribution) may be used. .

[0126] In the above-described embodiment, a specific image (see FIG. 10B) is displayed on the display unit 217 to notify that there is a possibility that the content data CD cannot be received. However, the possibility may be notified by vibration by a vibrator or an acoustic signal.

[0127] As described above, the present invention naturally includes various embodiments that are not described herein. Therefore, the technical scope of the present invention is not limited to the above-described explanatory power. It is determined only by the invention-specific matters relating to the scope of the invention.

[0128] Note that the entire contents of Japanese Patent Application No. 2006-049057 (filed on Feb. 24, 2006) are incorporated herein by reference.

Industrial applicability

[0129] As described above, the wireless communication device and the playback position display method according to the present invention receive and play back the same content transmitted to a plurality of destinations, and the entire content is included. This is useful for wireless communications such as mobile communications.

Claims

The scope of the claims

[1] A content receiving unit configured to receive a plurality of unit content powers, which is transmitted from a radio base station to a plurality of destinations simultaneously,

A content playback unit for playing back the content received by the content receiver;

A display unit for displaying a predetermined image;

An information acquisition unit for acquiring reproduction position specifying information for specifying a force corresponding to any position of the content; the unit content force currently being reproduced by the content reproduction unit;

The content playback unit uses the playback position specifying information acquired by the information acquisition unit and is currently played back by the content playback unit! A display processing unit that displays on the display unit a current reproduction position indicating which position of the content corresponds to the unit content power.

[2] The unit content includes a sequence number,

The radio communication apparatus according to claim 1, wherein the information acquisition unit acquires the sequence number and content time information indicating the entire time of the content as the reproduction position specifying information.

[3] The unit content further includes a content identification U child that identifies the content, and the information acquisition unit acquires program data in which the content identifier and the content transmission schedule are associated with each other. 3. The wireless communication apparatus according to claim 2, wherein the content time information is acquired from the acquired program data.

[4] When the content received by the content receiver includes a transmission error

The information acquisition unit acquires error position specifying information for specifying which position of the content the unit content including the transmission error corresponds to;

The display processing unit causes the display unit to display an error position indicating which position of the content the unit content including the transmission error corresponds to using the error position specifying information. Item 4. The wireless communication device according to any one of Items 1 to 3.

[5] A content storage unit for storing the content received by the content reception unit is further provided,

The wireless communication device according to claim 1, wherein the display processing unit causes the display unit to display an area of the content that has been stored in the content storage unit.

[6] A handoff detection unit for detecting that there is a possibility of handoff from the radio base station to another radio base station different from the radio base station;

A notifying unit for notifying that the content receiving unit may not be able to receive the content when the possibility is detected by the handoff detecting unit;

The wireless communication apparatus according to claim 1, further comprising:

[7] A content receiving unit configured to receive a plurality of unit content powers that are transmitted from a radio base station to a plurality of destinations at the same time;

A display unit for displaying a predetermined image;

A reproduction position display method using a wireless communication device comprising:

A step of obtaining reproduction position specifying information for specifying which position of the unit content force the content currently being reproduced by the content reproduction unit;

A step of causing the display unit to display a current reproduction position indicating which position of the content corresponds to the unit content force currently reproduced by the content reproduction unit, using the acquired reproduction position specifying information. When

A playback position display method comprising:

[8] The unit content includes a sequence number,

8. The playback position display method according to claim 7, wherein in the step of acquiring the playback position specifying information, the sequence number and content time information indicating the entire time of the content are acquired as the playback position specifying information.

[9] The unit content further includes a content identification U child that identifies the content. 9. The step of acquiring the reproduction position specifying information acquires program data in which the content identifier is associated with a transmission schedule of the content, and acquires the content time information from the acquired program data. The playback position display method described in 1.

[10] When a transmission error is included in the content received by the content receiver, in the step of acquiring the reproduction position specifying information, the unit content including the transmission error is at any position of the content. Error location identification information that identifies whether or not

In the step of displaying on the display unit, an error position indicating to which position of the content the unit content including the transmission error corresponds is displayed on the display unit using the error position specifying information. The reproduction position display method according to any one of claims 7 to 9, wherein the reproduction position is displayed.

[11] The method further comprising the step of storing the content received by the content receiving unit, wherein the step of displaying on the display unit causes the display unit to display an area stored in the content storage unit in the content. The playback position display method described in 7.

[12] detecting from the radio base station that there is a possibility of handing off to another radio base station different from the radio base station;

Notifying that there is a possibility that the content receiving unit may not be able to receive the content when the possibility is detected in the detecting step;

The playback position display method according to claim 7, further comprising: