JP3958585B2 - Data distribution system - Google Patents

Data distribution system Download PDF

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Publication number
JP3958585B2
JP3958585B2 JP2002009923A JP2002009923A JP3958585B2 JP 3958585 B2 JP3958585 B2 JP 3958585B2 JP 2002009923 A JP2002009923 A JP 2002009923A JP 2002009923 A JP2002009923 A JP 2002009923A JP 3958585 B2 JP3958585 B2 JP 3958585B2
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Japan
Prior art keywords
data
distribution
information
server
means
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Expired - Fee Related
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JP2002009923A
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Japanese (ja)
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JP2003216522A (en
Inventor
智史 堀口
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日本電信電話株式会社
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Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, a radio base station that broadcasts received data to a plurality of subordinate radio terminals and a server that transmits the data are connected via a predetermined network, and the data of the server is transmitted to the radio base station. The present invention relates to a data distribution system that distributes to a plurality of wireless terminals.
[0002]
[Prior art]
In a communication system using a wireless device, various contents can be broadcasted from a single wireless base station to many unspecified wireless terminals using the same wireless channel.
When distributing such content, the content data is placed on a server connected to the network. The radio base station is connected to the server via the network.
[0003]
When content is actually distributed, the content owner and the wireless system owner need to perform the following procedure.
The content owner prepares the content data and stores it in the server, and the server makes a procedure for starting the broadcast distribution. Also, the content owner creates a file called content data information storing information (IP address and port number) necessary for receiving broadcast distribution data for each content. The content data information is broadcast to the receiving terminal or placed on the server.
[0004]
The owner of the wireless system determines the operation of the wireless base station so that the wireless base station broadcasts the content distributed from the server to a plurality of wireless terminals. Furthermore, when the content data information (IP address or port number) does not exist on the WEB, when the terminal cannot directly access the content data information, the owner of the wireless system obtains the content data information, The operation of the radio base station is determined so that the radio base station broadcasts it to a plurality of radio terminals.
[0005]
In a wireless terminal that intends to receive content, the corresponding content data information is received from the wireless base station as broadcast distribution or obtained by inquiring a WEB server, and the desired content is synchronized using the content data information. Received as news distribution.
[0006]
[Problems to be solved by the invention]
In the conventional data distribution system, if the owner of the wireless system and the administrator of the server that distributes the content (or the owner of the content) are different, the content that the wireless system owner wishes to distribute However, it is impossible to distribute to the wireless system and the wireless terminal other than the specific content that can be distributed from the server by the procedure of the server administrator or the content owner.
[0007]
That is, even if a large number of contents are stored on the server, all contents cannot be distributed to the wireless system and the wireless terminal unless the server administrator performs a predetermined procedure. Owners could not freely select content to be distributed to subordinate wireless terminals.
In addition, when a wireless base station distributes content, it is necessary to use information such as an IP address used by the server to distribute the corresponding content. It is necessary to obtain information from the content owner and the like, and both the owner of the wireless system and the owner of the content need a troublesome procedure.
[0008]
According to the present invention, even when the owner of the wireless system is different from the owner of the content or the administrator of the server, it is possible to distribute desired content with a relatively simple procedure in the owner of the wireless system. The object is to provide a data distribution system.
[0009]
[Means for Solving the Problems]
  According to a first aspect of the present invention, a wireless base station that broadcasts received data to a plurality of subordinate wireless terminals and a server that transmits data are connected via a predetermined network, and the data of the server is transmitted to the wireless base station In at least one base station identifier representing a specific radio base station and at least one representing specific data among the plurality of data stored in the server A data storage for holding a plurality of data in the server, wherein a distribution control device having an identifier transmitting means for holding the data identifier and providing an identifier transmitting means for transmitting the base station identifier and the data identifier to the server is connected to the network Means, data selection means for selecting specific data corresponding to the data identifier received from the distribution control device, and the distribution control device Data transmission means for transmitting the selected data of the data selecting means to a particular radio base station corresponding to a base station identifier et received,Distribution information storage means for holding distribution information such as an address required for receiving broadcast distributed data for each of a plurality of data stored in the data storage means, and 1 selected by the distribution control device Distribution information selecting means for selecting distribution information associated with one or a plurality of data identifiers, and list information including the distribution information and data header information based on the plurality of distribution information selected by the distribution information selecting means A list creation means for creating a list, and a list broadcast delivery means for delivering the list information created by the list creation means,Is provided.
[0010]
The content to be distributed is determined by the data identifier transmitted from the distribution control device, and the radio base station that performs data distribution is determined by the base station identifier transmitted from the distribution control device. Therefore, if all the contents that can be distributed are arranged on the server in advance, the contents that are actually distributed can be freely changed only by an operation on the distribution control apparatus side.
[0011]
  That is, even if the owner of the wireless system and the distribution control device is different from the owner of the content (or the server administrator), the content to be distributed can be distributed only by performing the procedure by the owner of the wireless system and the distribution control device. Can be changed. If the content owner arranges all the content on the server, there is no need to perform a special operation or procedure for the content that is actually distributed.
Also, list information is created on the server so as to reflect the change in the content selection state in the distribution control device, and this list information is broadcasted from the server. This list information is a list of contents that can be received by the wireless terminal used by the user, and the user can use this as a program guide. The program guide broadcasted from the server can be received by each wireless terminal.
[0012]
  According to a second aspect of the present invention, a radio base station that broadcasts received data to a plurality of subordinate radio terminals and a server that transmits data are connected via a predetermined network, and the data of the server is transmitted to the radio base station. In a data distribution system that distributes to a plurality of wireless terminals viaHolding at least one base station identifier representing a specific radio base station and at least one data identifier representing specific data among a plurality of data stored in the server, wherein the base station identifier and the data identifier are A distribution control device provided with an identifier transmission means for transmitting to the server is connected to the network, and the server corresponds to a data storage means for holding a plurality of data and a data identifier received from the distribution control device. Data selection means for selecting specific data, data transmission means for transmitting data selected by the data selection means to a specific radio base station corresponding to the base station identifier received from the distribution control device, and broadcast Distribution information such as an address required for receiving the distributed data is stored in the data storage means. A distribution information storage unit that holds each, a distribution information selection unit that selects distribution information associated with one or more data identifiers selected by the distribution control device, and the distribution information selection unit Based on a plurality of distribution information, list creation means for creating list information including the distribution information and data header information, and the list information created by the list creation means to a radio base station that distributes the corresponding data List information transmitting means to transmit toIs provided.
The content to be distributed is determined by the data identifier transmitted from the distribution control device, and the radio base station that performs data distribution is determined by the base station identifier transmitted from the distribution control device. Therefore, if all the contents that can be distributed are arranged on the server in advance, the contents that are actually distributed can be freely changed only by an operation on the distribution control apparatus side.
That is, even if the owner of the wireless system and the distribution control device is different from the owner of the content (or the server administrator), the content to be distributed can be distributed only by performing the procedure by the owner of the wireless system and the distribution control device. Can change. If the content owner arranges all the content on the server, there is no need to perform a special operation or procedure for the content that is actually distributed.
Also, list information is created on the server so as to reflect the change in the content selection state in the distribution control device, and this list information is transmitted from the server to the radio base station that distributes the corresponding content. This list information is a list of contents that can be received by the wireless terminal used by the user, and the user can use this as a program guide. The program guide transmitted from the server can be received by each wireless terminal via the wireless base station.
[0013]
According to a third aspect of the present invention, a radio base station that broadcasts received data to a plurality of subordinate radio terminals and a server that transmits data are connected via a predetermined network, and the data of the server is transmitted to the radio base station. In the data distribution system for distributing to a plurality of wireless terminals via the network, the data distribution system is connected to the network and stores at least one data identifier representing specific data among the plurality of data stored in the server, A distribution control device comprising identifier transmitting means for transmitting to the server; and a first network belonging to a subordinate network connected to the network, receiving broadcast data transmitted from the server, and including at least one radio base station Data transfer means for transferring the broadcast data to the device, and the data transfer according to a request from the first device. A data transfer device comprising a transfer control means for controlling the operation of the means, and the server includes a data storage means for holding a plurality of data and a specific identifier corresponding to the data identifier received from the distribution control device. Data selection means for selecting data, data transmission means for transmitting data selected by the data selection means as broadcast data to the data transfer apparatus via a network, and use of broadcast data transmitted by the data transmission means Data distribution information transmitting means for transmitting distribution information such as an address necessary for the distribution control device to the distribution control device, wherein the distribution control device sends the distribution information received from the server to at least one radio base station. Further, data distribution information transfer means for transmitting the information is further provided.
  Claim3, The content to be distributed is determined by the data identifier transmitted by the distribution control device. Therefore, if all the contents that can be distributed are arranged on the server in advance, the contents that are actually distributed can be freely changed only by an operation on the distribution control apparatus side.
  Claims3Then, the content data is broadcast from the server and reaches the data transfer device. When there is a transfer request from a radio base station (first device), the data transfer device transfers content data to the radio base station. Therefore, only the specific radio base station for which the transfer request has been issued distributes the content.
[0015]
  For example, in order to receive specific data broadcasted in an IP (Internet Protocol) network, the IP multicast address and port number used in the broadcast delivery, that is, delivery information is required.
  According to a third aspect of the present invention, distribution information of data distributed by the data distribution information transmitting means on the server is sent to the distribution control device. The distribution control device transmits the distribution information received from the server to the subordinate radio base station. Therefore, the radio base station that has received the distribution information can specify data to be received.
[0016]
  Claim 4A wireless base station that broadcasts received data to a plurality of subordinate wireless terminals and a server that transmits the data are connected via a predetermined network, and the data of the server is transmitted to the plurality of wireless terminals via the wireless base station. In a data distribution system for distributing to a wireless terminal, at least one data identifier representing specific data among a plurality of data connected to the network and stored in the server is held, and the data identifier is transmitted to the server A distribution control device comprising an identifier transmitting means, and a first device connected to the network and receiving broadcast data transmitted from the server and belonging to a subordinate network including at least one radio base station Data transfer means for transferring the broadcast data, and operation of the data transfer means in accordance with a request from the first device A data transfer device including a transfer control means for controlling, and selecting, in the server, data storage means for holding a plurality of data and specific data corresponding to the data identifier received from the distribution control device Data selection means, data transmission means for sending the data selected by the data selection means as broadcast data to the data transfer device via a network, addresses required for receiving the data to be broadcasted, etc. A distribution information storage unit that holds distribution information for each of a plurality of data stored in the data storage unit, and a distribution information associated with one or a plurality of data identifiers selected by the distribution control device are selected. Based on a plurality of distribution information selected by the distribution information selection means and the distribution information selection means, the distribution information and A list creation means for creating a list of information, including the header information of the data, a list of broadcasting means that the list of information that was created of the list generation means to deliver broadcastIs provided.
[0017]
  In claim 4,The content to be distributed is determined by the data identifier transmitted by the distribution control device. Therefore, if all the contents that can be distributed are arranged on the server in advance, the contents that are actually distributed can be freely changed only by an operation on the distribution control apparatus side.
According to a fourth aspect of the present invention, content data is broadcast from the server and reaches the data transfer device. When there is a transfer request from a radio base station (first device), the data transfer device transfers content data to the radio base station. Therefore, only the specific radio base station for which the transfer request has been issued distributes the content.
Also, list information is created on the server so as to reflect the change in the content selection state in the distribution control device, and this list information is broadcasted from the server. This list information is a list of contents that can be received by the wireless terminal used by the user, and the user can use this as a program guide. The program guide broadcasted from the server can be received by each wireless terminal.
[0018]
  Claim 5A wireless base station that broadcasts received data to a plurality of subordinate wireless terminals and a server that transmits the data are connected via a predetermined network, and the data of the server is transmitted to the plurality of wireless terminals via the wireless base station. In a data distribution system for distributing to a wireless terminal, at least one data identifier representing specific data among a plurality of data connected to the network and stored in the server is held, and the data identifier is transmitted to the server A distribution control device comprising an identifier transmitting means, and a first device connected to the network and receiving broadcast data transmitted from the server and belonging to a subordinate network including at least one radio base station Data transfer means for transferring the broadcast data, and operation of the data transfer means in accordance with a request from the first device A data transfer device including a transfer control means for controlling, and selecting, in the server, data storage means for holding a plurality of data and specific data corresponding to the data identifier received from the distribution control device Data selection means, data transmission means for sending the data selected by the data selection means as broadcast data to the data transfer device via a network, addresses required for receiving the data to be broadcasted, etc. A distribution information storage unit that holds distribution information for each of a plurality of data stored in the data storage unit, and a distribution information associated with one or a plurality of data identifiers selected by the distribution control device are selected. Based on a plurality of distribution information selected by the distribution information selection means and the distribution information selection means, the distribution information and A list creation means for creating a list information including header information of the data, the list information transmission means for transmitting to the radio base station to the list information created in said list generation means is delivering the appropriate dataIs provided.
[0019]
  In claim 5,The content to be distributed is determined by the data identifier transmitted by the distribution control device. Therefore, if all the contents that can be distributed are arranged on the server in advance, the contents that are actually distributed can be freely changed only by an operation on the distribution control apparatus side.
Further, in claim 5, the content data is broadcast from the server and reaches the data transfer apparatus. When there is a transfer request from a radio base station (first device), the data transfer device transfers content data to the radio base station. Therefore, only the specific radio base station for which the transfer request has been issued distributes the content.
[0021]
Also,List information is created on the server so as to reflect the change of the content selection state in the distribution control device, and the list information is transmitted from the server to the radio base station that distributes the corresponding content. This list information is a list of contents that can be received by the wireless terminal used by the user, and the user can use this as a program guide. The program guide transmitted from the server can be received by each wireless terminal via the wireless base station.
[0022]
  Claim6Claims1 or 4In this data distribution system, when the distribution of the list information is started, the server notifies the distribution control device of distribution information such as an address required when the list information is received. An information notification unit is further provided, and the distribution control device further includes a distribution information notification transfer unit that notifies the radio base station of the distribution information notified from the distribution information notification unit of the server. .
[0023]
  Claim6When the server distributes the list information, the distribution information reaches the radio base station via the distribution control device. Therefore, the wireless base station can immediately distribute the list information distributed from the server to the subordinate wireless terminals by using the received distribution information.
  Claim7Claims2 or 5In this data distribution system, the distribution information for notifying the wireless base station of distribution information such as an address required when receiving the list information when starting distribution of the list information to the server A notification means is further provided.
[0024]
  Claim7When the server distributes the list information, the distribution information also reaches the radio base station. Therefore, the wireless base station can immediately distribute the list information distributed from the server to the subordinate wireless terminals by using the received distribution information.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
  (First embodiment)
  One embodiment of the data distribution system of the present invention will be described with reference to FIGS. This form is claimed in claim 1.And related to 2.
[0026]
FIG. 1 is a block diagram illustrating a configuration example of a communication system. FIG. 2 is a block diagram showing the configuration of the server in this form. FIG. 3 is a schematic diagram showing the structure of data information. FIG. 4 is a block diagram showing the configuration of the distribution control apparatus of this embodiment. FIG. 5 is a block diagram showing the configuration of the wireless system of this embodiment. FIG. 6 is a sequence diagram showing the operation of the data distribution system of this embodiment.
[0027]
  In this form, the claim 1And 2Wireless terminal, wireless base station, server, network, identifier transmission means, distribution control device, data storage means, data selection means, and data transmission means are wireless terminal 50, wireless base station 40, server 10, network 20, base This corresponds to the station identifier transmission unit 32 (data identifier transmission unit 33), the distribution control device 30, the data storage unit 11, the data selection unit 15, and the data transmission unit 16.
[0028]
In this embodiment, as shown in FIG. 1, a communication system including a server 10, a network 20, a distribution control device 30, a wireless base station 40, and a wireless terminal 50 is used, and data of various contents stored in the server 10 is owned by the user. A case where distribution to the wireless terminal 50 is assumed.
One or more servers 10 and one or more radio base stations 40 are connected to the network 20. Each wireless terminal 50 existing within the range of the wireless zone formed by the wireless base station 40 can communicate with the wireless base station 40. Further, the radio base station 40 can broadcast and transmit data to a plurality of subordinate radio terminals 50 using the same radio channel (common radio connection). Content data transmitted from the server 10 is distributed to the wireless terminal 50 by broadcast transmission of the wireless base station 40.
[0029]
In this example, it is assumed that the owner (or administrator) of the wireless system including the wireless base station 40 is different from the owner of the content (or the administrator of the server 10). The distribution control device 30 is also owned by the owner of the wireless system. The distribution control device 30 is used for controlling the content distributed by the owner of the wireless system to the user.
[0030]
As shown in FIG. 2, the server 10 includes a data storage unit 11, a data information storage unit 12, a data identifier reception unit 13, a base station identifier reception unit 14, a data selection unit 15, and a data transmission unit 16.
The data storage unit 11 is a storage device such as a hard disk. In the data storage unit 11, for example, various content data 17 that the content owner desires to distribute data to the user is stored in advance by the operation of the content owner. The content data 17 includes, for example, a plurality of moving images, a plurality of still images, a plurality of text documents, and the like.
[0031]
The data identifier receiving unit 13 receives the data identifier output from the distribution control device 30 via the network 20. This data identifier is information necessary for specifying the content data 17 to be distributed, and is, for example, the content content, the file name of the data, the identification number, and the like.
The base station identifier receiving unit 14 receives the base station identifier transmitted from the distribution control device 30 via the network 20. This base station identifier is information for specifying the radio base station 40 used for distribution of the content data 17, and for example, an IP address assigned to the specific radio base station 40 is used as the base station identifier.
[0032]
The data information storage unit 12 stores data information as shown in FIG. This data information is composed of the number, location, file name, name, etc. of all the content data 17 stored in the data storage unit 11 and is used for searching the content data 17.
That is, by referring to the data information, the specific content data 17 corresponding to the data identifier received by the data identifier receiving unit 13 can be found from the data storage unit 11.
[0033]
When the data identifier receiving unit 13 receives the data identifier, the data selecting unit 15 finds specific content data 17 corresponding to the data identifier from the data information in the data information storage unit 12, and stores the content data 17 in the data storage The data is taken out from the unit 11 and given to the data transmission unit 16.
[0034]
The data transmission unit 16 transmits specific content data 17 input from the data selection unit 15 via the network 20. The destination of the content data 17 is a specific radio base station 40 corresponding to the base station identifier received by the base station identifier receiver 14.
The distribution control device 30 includes an identifier storage unit 31, a base station identifier transmission unit 32, and a data identifier transmission unit 33 as shown in FIG. The identifier storage unit 31 is configured by a semiconductor memory, for example. The identifier storage unit 31 holds a base station identifier ID1 and a data identifier ID2.
[0035]
The base station identifier transmission unit 32 transmits the base station identifier ID1 held in the identifier storage unit 31 to the server 10 via the network 20. The data identifier transmission unit 33 transmits the data identifier ID2 held in the identifier storage unit 31 to the server 10 via the network 20.
On the other hand, as shown in FIG. 5, the radio base station 40 includes a data receiving unit 41 and a data broadcast distributing unit 42. The data receiving unit 41 receives the content data 17 distributed to the radio base station 40 via the network 20.
[0036]
The data broadcast distribution unit 42 converts the content data 17 received by the data reception unit 41 into a radio signal and broadcasts it to the subordinate radio terminal 50.
Each wireless terminal 50 receives a wireless signal transmitted from the wireless base station 40, and demodulates and reproduces the distributed content data 17 by the broadcast data receiving unit 51.
Next, the operation of the entire data distribution system of this embodiment will be described with reference to FIG. Here, it is assumed that the content owner has already stored all the content data 17 in the data storage unit 11 of the server 10.
[0037]
In addition, an administrator operating the distribution control device 30 obtains a base station identifier representing a specific radio base station 40 used for content distribution in advance and a data identifier representing specific content data 17 to be distributed, and has already identified them. The case where it memorize | stores in the memory | storage part 31 is assumed.
[0038]
When the distribution of the content data 17 is to be started, the base station identifier and the data identifier are first transmitted from the distribution control device 30 (S11, S12). These base station identifiers and data identifiers are received by the server 10.
The server 10 selects specific content data 17 corresponding to the received data identifier in step S13. The selected content data 17 is transmitted to the specific radio base station 40 corresponding to the received base station identifier (S14).
[0039]
When the radio base station 40 receives the content data 17 from the server 10, the radio base station 40 starts broadcast transmission of the content data 17. By this broadcast transmission, the content data 17 is distributed to a plurality of wireless terminals 50 under the wireless base station 40.
Since the content data 17 to be distributed is determined by the data identifier transmitted to the server 10 by the distribution control device 30, the data sent by the distribution control device 30 without any special operation or procedure by the content owner. The content data 17 to be distributed can be changed simply by changing the identifier. Therefore, even if the system owner (owner of the radio base station 40 and the distribution control device 30) and the owner of the content data 17 or the administrator of the server 10 are different, it is free only by the judgment of the system owner. The content to be distributed can be changed.
[0040]
  (Second Embodiment)
  Another embodiment of the data distribution system of the present invention will be described with reference to FIGS. This form is claimedRelated to 3-5.
  FIG. 7 is a block diagram illustrating a configuration example of a communication system. FIG. 8 is a block diagram showing the configuration of the server in this form. FIG. 9 is a block diagram showing the configuration of the distribution control apparatus of this embodiment. FIG. 10 is a block diagram showing the configuration of the data transfer apparatus of this embodiment. FIG. 11 is a block diagram showing the configuration of the wireless system of this embodiment. FIG. 12 is a sequence diagram showing the operation of the data distribution system of this embodiment.
[0041]
  This form is a modification of the first embodiment. 7 to 12, elements corresponding to those of the first embodiment are denoted by the same reference numerals. The following description is omitted for the same elements.
  In this form, the claims3 to 5Identifier transmission means, distribution control device, first device, data transfer means, transfer control means, data transfer device, server, data storage means, data selection means, and data transmission means are the data identifier receiving unit 13, distribution control, respectively. It corresponds to the device 30, the radio base station 40, the data transfer control unit 62, the transfer request receiving unit 61, the data transfer device 60, the server 10, the data storage unit 11, the data selection unit 15, and the data broadcast transmission unit 18.
[0042]
A data distribution information transmitting unit and a data distribution information transferring unit according to claim 3 correspond to the data distribution information transmitting unit 19 and the data distribution information transmitting unit 36, respectively.
In this embodiment, as shown in FIG. 7, a communication system including the server 10, the network 20, the distribution control device 30, the wireless base station 40, the wireless terminal 50, and the data transfer device 60 is used. Is distributed to the wireless terminal 50 owned by the user.
[0043]
That is, in this embodiment, the radio base station 40 is connected to the network 20 via the data transfer device 60. One or more servers 10 are connected to the network 20. In addition, one or more radio base stations 40 are connected to the data transfer device 60.
Each wireless terminal 50 existing within the range of the wireless zone formed by the wireless base station 40 can communicate with the wireless base station 40. Further, the radio base station 40 can broadcast and transmit data to a plurality of subordinate radio terminals 50 using the same radio channel (common radio connection). Content data transmitted from the server 10 is distributed to the wireless terminal 50 by broadcast transmission of the wireless base station 40.
[0044]
In this example, it is assumed that the owner (or administrator) of the wireless system including the wireless base station 40 is different from the owner of the content (or the administrator of the server 10). The distribution control device 30 is also owned by the owner of the wireless system. The distribution control device 30 is used for controlling the content distributed by the owner of the wireless system to the user.
[0045]
As shown in FIG. 8, the server 10 includes a data storage unit 11, a data information storage unit 12, a data identifier reception unit 13, a data selection unit 15, a data broadcast transmission unit 18, and a data distribution information transmission unit 19. .
As in the first embodiment, the data identifier receiving unit 13 receives the data identifier output from the distribution control device 30. Further, the data selection unit 15 selects specific content data 17 corresponding to the data identifier received by the data identifier reception unit 13, retrieves it from the data storage unit 11, and provides it to the data broadcast transmission unit 18.
[0046]
The data broadcast transmission unit 18 broadcasts the content data 17 selected by the data selection unit 15 to the network 20. By this broadcast transmission, the content data 17 is delivered to the data transfer device 60 via the network 20.
The data distribution information transmission unit 19 obtains data distribution information used by the data broadcast transmission unit 18 in the broadcast transmission of the content data 17, that is, information on the IP address and port number, from the data broadcast transmission unit 18, It is transmitted to the distribution control device 30. The data distribution information transmitted by the data distribution information transmitting unit 19 reaches the distribution control device 30 via the network 20.
[0047]
The distribution control device 30 includes an identifier storage unit 31, a data identifier transmission unit 33, a data distribution information reception unit 35, and a data distribution information transmission unit 36 as shown in FIG. As in the first embodiment, the data identifier transmission unit 33 transmits the data identifier held in the identifier storage unit 31 to the server 10 via the network 20.
The data distribution information receiving unit 35 receives data distribution information transmitted from the server 10 from the network 20.
[0048]
The data distribution information transmitting unit 36 transmits the data distribution information received by the data distribution information receiving unit 35 to the radio base station 40. That is, the destination is the radio base station 40 corresponding to the base station identifier ID1 held in the identifier storage unit 31. This data distribution information is delivered to the radio base station 40 via the network 20 and the data transfer device 60.
[0049]
As shown in FIG. 10, the data transfer device 60 includes a transfer request receiving unit 61, a data transfer control unit 62, and a router 63. The router 63 is connected to the network 20 and the radio base station 40. That is, each radio base station 40 is connected to the network 20 via the router 63.
The transfer request receiving unit 61 receives a data transfer request transmitted from the radio base station 40 and notifies the data transfer control unit 62 of the data transfer request. For this data transfer request, for example, a message using IGMP (Internet Group Management Protocol) is used. This data transfer request is transmitted when the subordinate radio base station 40 wants to receive broadcast data.
[0050]
The data transfer control unit 62 controls the router 63 according to the received data transfer request, and controls the transfer of the content data 17. That is, when the content data 17 corresponding to the data transfer request has not been transferred to the subordinate radio base station 40, the transfer of the content data 17 is started.
As shown in FIG. 11, the radio base station 40 includes a data receiving unit 41, a data broadcast distributing unit 42, a data distribution information receiving unit 43, and a data transfer request transmitting unit 44.
[0051]
The data distribution information receiving unit 43 receives the data distribution information transmitted from the distribution control device 30 via the network 20 and the data transfer device 60. In addition, the data distribution information receiving unit 43 notifies the data distribution information to the data transfer request transmitting unit 44 in order to request the transfer of the content data 17 distributed by broadcast according to the received data distribution information. At the same time, the data receiver 41 is requested to receive the content data 17.
[0052]
The data transfer request transmission unit 44 creates an IGMP packet representing a data transfer request based on the data distribution information notified from the data distribution information receiving unit 43 and transmits it to the data transfer device 60.
Next, the operation of the entire data distribution system of this embodiment will be described with reference to FIG. Here, it is assumed that the content owner has already stored all the content data 17 in the data storage unit 11 of the server 10.
[0053]
In addition, an administrator operating the distribution control device 30 obtains a base station identifier representing a specific radio base station 40 used for content distribution in advance and a data identifier representing specific content data 17 to be distributed, and has already identified them. The case where it memorize | stores in the memory | storage part 31 is assumed.
The owner of the data transfer device 60 may be the same as or different from the owner of the wireless system.
[0054]
When the distribution of the content data 17 is to be started, a data identifier is first transmitted from the distribution control device 30 (S21). This data identifier is received by the server 10.
The server 10 selects specific content data 17 corresponding to the received data identifier in step S22. The selected content data 17 is broadcasted from the server 10 to the network 20 (S23). As a result, the content data 17 reaches the data transfer device 60.
[0055]
Further, data distribution information used for distributing the content data 17 being broadcasted on the server 10, that is, information such as a multicast IP address and a port number is acquired from the data broadcast transmitting unit 18. This data distribution information is transmitted from the server 10 (S24) and reaches the distribution control device 30.
When receiving the data distribution information from the server 10, the distribution control device 30 transmits it to the specific radio base station 40 used for distributing the content data 17 (S25).
[0056]
When receiving the data distribution information from the distribution control device 30, the radio base station 40 transmits a data transfer request to the data transfer device 60 in the form of an IGMP message or the like in order to receive the corresponding content data 17. (S26).
The data transfer device 60 controls the transfer of the content data 17 in accordance with the data transfer request transmitted from each radio base station 40. That is, if the requested content data 17 has not yet been transferred to the corresponding radio base station 40, transfer of the content data 17 is started (S27).
[0057]
As a result, the content data 17 transmitted from the server 10 reaches the radio base station 40 via the data transfer device 60.
After transmitting the data transfer request, the radio base station 40 waits until the corresponding content data 17 is received. When the reception of the content data 17 is detected, the radio base station 40 starts broadcasting the content data 17 to the radio terminal 50. (S28).
[0058]
As described above, the content data 17 to be distributed can be changed by the data identifier transmitted by the distribution control device 30 even if the content owner or the administrator of the server 10 does not perform any special procedure regarding the distribution of the content. In addition, the radio base station 40 can receive the content data 17 using the data distribution information transmitted from the distribution control device 30 and broadcast the content data 17 to the subordinate radio terminals 50 by radio signals. .
[0059]
  (Third embodiment)
  Another embodiment of the data distribution system of the present invention will be described with reference to FIGS.
  FIG. 13 is a block diagram showing the configuration of the server in this form. FIG. 14 is a block diagram showing the configuration of the distribution control apparatus of this embodiment. FIG. 15 is a sequence diagram showing the operation of the data distribution system of this embodiment. FIG. 16 is a front view showing a display example of a data list.
[0060]
  This form is a modification of the first embodiment. In FIGS. 13 to 16, elements corresponding to those of the first embodiment are denoted by the same reference numerals. The following description is omitted for the same elements. The features of this embodiment can be similarly applied to the second embodiment, but the description thereof is omitted.
[0061]
In this embodiment, it is assumed that content data is distributed using a system as shown in FIG. 1 as in the first embodiment. Further, in this embodiment, even if the administrator who operates the distribution control device 30 does not know each content data 17 arranged on the server 10, the data identifier to be transmitted from the distribution control device 30 to the server 10 is easily determined. It can be done.
[0062]
In this embodiment, the server 10 is provided with a list creation unit 101 and a list transmission unit 102 as shown in FIG.
The list creation unit 101 creates a data list representing all content data 17 held in the data storage unit 11 as information in, for example, HTML (Hyper Text Markup Language) format. This data list can be displayed as shown in FIG. 16, for example.
[0063]
As shown in FIG. 16, the data list includes a title 111, an outline 112, and an image 113 representing a scene of the contents for each content data 17. In addition, the data list includes a selection unit 114 that is used for input such as selection of content data 17 to be distributed. Further, the data list includes a data identifier for each content data 17.
[0064]
The list transmitting unit 102 transmits information on the data list created by the list creating unit 101 to the distribution control device 30 via the network 20. The transmission method in this case may be unicast or multicast.
On the other hand, the distribution control device 30 includes a list receiving unit 105, a list display unit 106, and a data identifier input unit 107 as shown in FIG.
[0065]
The list receiving unit 105 receives data list information transmitted from the server 10 from the network 20.
The list display unit 106 outputs the information of the data list received by the list receiving unit 105 as visible information using a CRT display, a liquid crystal display, a printer, or the like. Therefore, the administrator who operates the distribution control device 30 can see a data list as shown in FIG. 16 and can grasp the contents of all the content data 17 stored in the server 10.
[0066]
The data identifier input unit 107 includes an input device such as a mouse or a keyboard, for example, and receives an input from the administrator of the distribution control device 30. That is, when the administrator makes an input to the selection unit 114 associated with the specific content data 17 while viewing the screen on which information as shown in FIG. 16 is displayed, the data identifier input unit 107 is displayed at the input position. The data identifier of the content data 17 being selected is selected.
[0067]
The data identifier transmission unit 33 transmits the data identifier selected by the data identifier input unit 107 to the server 10 via the network 20.
Next, the operation of the entire system will be described with reference to FIG.
In the server 10, after all the content data 17 is stored, a data list representing these contents is created (S01). This data list is transmitted from the server 10 to the distribution control device 30 via the network 20 (S02).
[0068]
The distribution control device 30 displays the received data list visually (S03). By confirming this display, the administrator of the distribution control device 30 can grasp all the content data 17.
When the administrator selects the content data 17, the distribution control device 30 receives the input (S04), specifies a data identifier corresponding to the selected content data 17 (S05), and transmits it to the server 10 (S12).
[0069]
As described above, the administrator of the distribution control device 30 can grasp all the content data 17 stored in the server 10 from the data list received by the distribution control device 30 and select specific content data 17 to be distributed. .
About the delivery operation | movement of the content data 17, it is the same as that of 1st Embodiment and 2nd Embodiment.
[0070]
When the administrator of the distribution control device 30 clicks “stop distribution” in the displayed data list, the input is accepted in step S16, and the data identifier for which distribution is to be stopped is specified in step S17. 30 transmits a distribution stop request to the server 10 (S18). When receiving the distribution stop request, the server 10 stops the distribution of the corresponding content data 17 (S19).
[0071]
Also in the second embodiment described above, data distribution can be stopped by an instruction from the distribution control device 30. In that case, not only a distribution stop request is transmitted from the distribution control device 30 to the server 10 as shown in FIG. 15, but also the data distribution information of the content to be stopped from the distribution control device 30 to the radio base station 40 At the same time, it is necessary to send a distribution stop request. When receiving the distribution stop request, the radio base station 40 stops transmitting the data transfer request to the data transfer apparatus.
[0072]
  (Fourth embodiment)
  Another embodiment of the data distribution system of the present invention will be described with reference to FIGS. This form is claimedRelated to 1 and 4.
  FIG. 17 is a block diagram showing the configuration of the server in this form. FIG. 18 is a schematic diagram illustrating a configuration example of data distribution information. FIG. 19 is a front view showing a display example of a program guide. FIG. 20 is a flowchart showing the operation of the server in response to a change in the data distribution status.
[0073]
  This embodiment is a modification of any one of the first embodiment, the second embodiment, and the third embodiment. 17 to 20, elements corresponding to those of the first embodiment are denoted by the same reference numerals. The following description is omitted for the same elements.
  In this form, the claims1 and 4Distribution information storage means, distribution information selection means, list creation means, and list broadcast distribution means include a data distribution information storage unit 202, a data distribution information selection unit 204, a data information list creation unit 205, and a data information list broadcast distribution, respectively. This corresponds to the unit 206.
[0074]
In this embodiment, it is assumed that content data is distributed using a system system including the server 10, the network 20, the distribution control device 30, the wireless base station 40, and the wireless terminal 50 as in the first embodiment. Yes.
Further, in this embodiment, a data information list, that is, a program guide content is created and distributed to the wireless terminal 50 so that the user of each wireless terminal 50 can grasp and select the content data 17 that can be received. To do. The contents of the program guide are created so as to reflect the dynamic change in the distribution status of the content data 17 controlled by the distribution control device 30.
[0075]
As shown in FIG. 17, the server 10 includes a data storage unit 11, a data information storage unit 12, a data selection unit 15, a data transmission unit 16, a data distribution information storage unit 202, a data distribution information selection unit 204, and a data information list creation unit. 205 and a data information list broadcast delivery unit 206.
The data selection unit 15 extracts specific content data 17 corresponding to the data identifier input from the distribution control device 30 from the data storage unit 11 as in the first embodiment.
[0076]
The data distribution information storage unit 202 is a storage device configured with a hard disk or the like, and holds data distribution information. The data distribution information held in the data distribution information storage unit 202 is information necessary for the terminal to receive the content data 17 broadcasted by the server 10, for example, as shown in FIG. An address and a port number are held for each content data 17 to be distributed.
[0077]
The data distribution information selection unit 204 acquires a data identifier and data information corresponding to the content data 17 to start distribution from the data selection unit 15, and also transmits data distribution information corresponding to the acquired data identifier to the data distribution information storage unit 202. Selectively from.
The data information list creation unit 205 acquires the data information and data distribution information of the content selected by the data distribution information selection unit 204, and creates a data information list, that is, a program guide, for example, as an HTML format file based on them.
[0078]
This data information list can be displayed visually as shown in FIG. 19, for example. In the data information list shown in FIG. 19, for each content, an image 113, a title 111 and an outline 112 of the content, which is data content, and a distribution band 115 of data distribution information are displayed.
Of course, the data information list that is actually distributed includes information on the multicast IP address and port number necessary for receiving the content, but these are not displayed on the screen.
[0079]
A list of data information that is a program guide can be received and displayed by the wireless terminal 50. When the user performs an input operation for selecting a specific content for the displayed program guide, information on the multicast IP address and port number used for the distribution of the specific content data 17 is extracted from the data information list. Is done. Therefore, the wireless terminal 50 can receive the specific content data 17 desired by the user.
[0080]
The data information list broadcast delivery unit 206 shown in FIG. 17 broadcasts the data information list created by the data information list creation unit 205 to the network 20 as one content. Therefore, each wireless terminal 50 can receive the data information list transmitted by the server 10.
In this form, the server 10 executes the operation shown in FIG. 20 in addition to the operations of the other embodiments, and manages the distribution of the data information list. When the server 10 starts distributing the content data 17 in accordance with an instruction from the distribution control device 30, the operation shown in FIG.
[0081]
In step S41 of FIG. 20, the server 10 monitors changes in the data distribution status. That is, when starting or stopping the distribution of each content data 17, the data identifier of the corresponding content data 17 is input from the distribution control device 30 to the server 10, so that the data distribution status is monitored The presence or absence of changes can be examined.
[0082]
When a change occurs in the data distribution status, the process proceeds from step S41 to S42. In step S <b> 42, the data selection unit 15 acquires the data identifier and data information of the content to be newly started or the content to be stopped.
In step S <b> 43, data distribution information of content to be newly started or content to be stopped is acquired from the data distribution information storage unit 202.
[0083]
When the distribution of new content is started, the process proceeds from step S44 to S45, and when the distribution of the content being distributed is stopped, the process proceeds from step S44 to S46.
In step S45, the information on the content to be newly started, that is, the information acquired in steps S42 and S43 is added to the data information list. In step S46, the information on the content whose distribution is to be stopped, that is, the information acquired in steps S42 and S43, is deleted from the data information list.
[0084]
In step S47, the data information list updated in step S45 or S46 is broadcast to the network 20 as one content, that is, a program guide.
Accordingly, the contents of the program guide distributed to the wireless terminal 50 are sequentially updated to reflect the dynamic change of the content data 17 actually distributed from the server 10. The user of the wireless terminal 50 grasps the content data 17 actually distributed by the server 10 from the contents of the program guide, and obtains data distribution information (IP address and port number) necessary for receiving each content data 17 can do.
[0085]
  Thus, the program guide including the data distribution information can be distributed to the users of the respective wireless terminals 50, and the contents of the program guide can always be kept up-to-date.
  (Fifth embodiment)
  Another embodiment of the data distribution system of the present invention will be described with reference to FIG. This form is claimedRelated to 2 and 5.Corresponding to
[0086]
  FIG. 21 is a block diagram showing the configuration of the server in this form. This form is a modification of the fourth embodiment. In FIG. 21, elements corresponding to those in the fourth embodiment are denoted by the same reference numerals. The following description is omitted for the same elements.
  In this form, the claims2 and 5Distribution information storage means, distribution information selection means, list creation means, and list information transmission means are respectively connected to data distribution information storage section 202, data distribution information selection section 204, data information list creation section 205, and data information list transmission section 207. Correspond.
[0087]
As shown in FIG. 21, the server 10 of this embodiment includes a data information list transmission unit 207 instead of the data information list broadcast distribution unit 206.
The data information list transmission unit 207 transmits the data information list created by the data information list creation unit 205 to the specific radio base station 40 that is the content distribution destination via the network 20.
[0088]
  Other operations are the same as those in the fourth embodiment.
  (Sixth embodiment)
  Another embodiment of the data distribution system of the present invention will be described with reference to FIG. This form is claimed6Corresponding to
  FIG. 22 is a sequence diagram showing an operation example of the data distribution system. This form is a modification of the fourth embodiment, and it is assumed that a system having the same configuration as that of the fourth embodiment is used.
[0089]
The operation changed or added in this form will be described with reference to FIG. The description of the same parts as those in the fourth embodiment is omitted.
Similar to the fourth embodiment, according to the data identifier sent from the distribution control device 30, the server 10 creates a data information list (program guide) in step S62 and starts its broadcast distribution. This data information list is delivered to the data transfer device 60 and the like via the network 20.
[0090]
Further, the server 10 notifies the distribution control device 30 of the data distribution information related to the content (program guide) of the data information list that has started distribution, that is, the IP multicast address and port number information in step S64.
The distribution control device 30 transmits the data distribution information of the program guide notified from the server 10 to the radio base station 40 (S65).
[0091]
When receiving the data distribution information of the program guide, the radio base station 40 transmits a data transfer request to the data transfer device 60 in order to request transfer of the program guide (S66).
When receiving the data transfer request from the radio base station 40, the data transfer device 60 starts transferring the program guide to the radio base station 40 accordingly (S67).
The radio base station 40 starts broadcast distribution of the program table transferred from the data transfer device 60 to the radio section (S68).
[0092]
As described above, when the server 10 starts transmitting the program guide, the radio base station 40 automatically requests the data transfer device 60 to transfer the program guide. Can start.
[0093]
  (Seventh embodiment)
  Another embodiment of the data distribution system of the present invention will be described with reference to FIG. This form is claimed7Corresponding to
  FIG. 23 is a sequence diagram showing an operation example of the data distribution system. This form is a modification of the fifth embodiment, and it is assumed that a system having the same configuration as that of the fifth embodiment is used.
[0094]
The operation changed or added in this form will be described with reference to FIG. The description of the same parts as those of the fifth embodiment is omitted.
As in the fifth embodiment, according to the data identifier sent from the distribution control device 30, the server 10 creates a data information list (program guide) in step S71 and starts broadcast distribution thereof. This list of data information is transmitted to the radio base station 40 via the network 20 (S72).
[0095]
Further, the server 10 transmits the data distribution information used in the broadcast distribution of the data information list (program guide), that is, the IP multicast address and the port number, to the radio base station 40 (S73).
The radio base station 40 receives the data information list (program guide) to be delivered using the received data delivery information, and starts broadcast delivery for the radio section (S74).
[0096]
As described above, when the server 10 starts transmitting the program guide, the radio base station 40 automatically receives the program guide using the received data distribution information, and immediately starts broadcasting the program guide to the wireless section. can do.
In addition, regardless of whether the data transfer method from the server 10 to the wireless base station 40 is unicast / multicast, the user of the wireless terminal 50 receives a program table showing a list of contents and selects a desired content can do.
[0097]
【The invention's effect】
As described above, according to the present invention, the content owner and the administrator of the wireless system who wants to determine the content to be distributed can determine the content to be broadcasted without considering each other. Since the content owners only need to store the content data in the server, and the administrator of the wireless system only needs to select the content, the mutual purpose of distributing the content is achieved.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration example of a communication system.
FIG. 2 is a block diagram illustrating a configuration of a server according to the first embodiment.
FIG. 3 is a schematic diagram showing a configuration of data information.
FIG. 4 is a block diagram illustrating a configuration of a distribution control apparatus according to the first embodiment.
FIG. 5 is a block diagram illustrating a configuration of a wireless system according to the first embodiment.
FIG. 6 is a sequence diagram illustrating an operation of the data distribution system according to the first embodiment.
FIG. 7 is a block diagram illustrating a configuration example of a communication system.
FIG. 8 is a block diagram illustrating a configuration of a server according to the second embodiment;
FIG. 9 is a block diagram illustrating a configuration of a distribution control apparatus according to a second embodiment.
FIG. 10 is a block diagram illustrating a configuration of a data transfer apparatus according to a second embodiment.
FIG. 11 is a block diagram illustrating a configuration of a wireless system according to a second embodiment.
FIG. 12 is a sequence diagram illustrating an operation of the data distribution system according to the second embodiment.
FIG. 13 is a block diagram illustrating a configuration of a server according to the third embodiment;
FIG. 14 is a block diagram illustrating a configuration of a distribution control apparatus according to a third embodiment.
FIG. 15 is a sequence diagram illustrating an operation of the data distribution system according to the third embodiment.
FIG. 16 is a front view showing a display example of a data list.
FIG. 17 is a block diagram illustrating a configuration of a server according to a fourth embodiment;
FIG. 18 is a schematic diagram illustrating a configuration example of data distribution information.
FIG. 19 is a front view showing a display example of a program guide.
FIG. 20 is a flowchart showing an operation of the server in response to a change in data distribution status.
FIG. 21 is a block diagram illustrating a configuration of a server according to a fifth embodiment;
FIG. 22 is a sequence diagram illustrating an operation example of the data distribution system.
FIG. 23 is a sequence diagram illustrating an operation example of the data distribution system.
[Explanation of symbols]
10 servers
11 Data storage
12 Data information storage
13 Data identifier receiver
14 Base station identifier receiver
15 Data selection part
16 Data transmitter
17 Content data
18 Data broadcast transmission section
19 Data distribution information transmitter
20 network
30 Distribution control device
31 Identifier storage unit
32 Base station identifier transmitter
33 Data identifier transmitter
35 Data distribution information receiver
36 Data distribution information transmitter
40 radio base stations
41 Data receiver
42 Data Broadcasting Department
43 Data distribution information receiver
44 Data transfer request transmitter
50 wireless terminals
51 Broadcast data receiver
60 Data transfer device
61 Transfer request receiver
62 Data transfer controller
63 routers
101 List creation section
102 List transmission section
105 List receiver
106 List display area
107 Data identifier input section
111 Title
112 Overview
113 images
114 Selector
115 Distribution bandwidth
201 Data information storage unit
202 Data distribution information storage unit
203 Data selection part
204 Data distribution information selection unit
205 Data information list creation part
206 Data Information List Broadcast Distribution Department
207 Data information list transmitter

Claims (7)

  1. A wireless base station that broadcasts received data to a plurality of subordinate wireless terminals and a server that transmits the data are connected via a predetermined network, and the data of the server is transmitted to the plurality of wireless terminals via the wireless base station. In a data distribution system that distributes to wireless terminals,
    Holding at least one base station identifier representing a specific radio base station and at least one data identifier representing specific data among a plurality of data stored in the server, wherein the base station identifier and the data identifier are A distribution control device provided with an identifier transmission means for transmitting to the server is connected to the network;
    The server includes data storage means for holding a plurality of data, data selection means for selecting specific data corresponding to the data identifier received from the distribution control apparatus, and a base station identifier received from the distribution control apparatus. Data transmitting means for transmitting the data selected by the data selecting means to a corresponding specific radio base station;
    Distribution information storage means for holding distribution information such as an address required for receiving broadcast-distributed data for each of a plurality of data stored in the data storage means;
    Distribution information selection means for selecting distribution information associated with one or more data identifiers selected by the distribution control device;
    List creation means for creating list information including the delivery information and heading information of data based on a plurality of pieces of delivery information selected by the delivery information selection means;
    A data distribution system comprising: list broadcast distribution means for distributing the list information created by the list creation means .
  2. A wireless base station that broadcasts received data to a plurality of subordinate wireless terminals and a server that transmits the data are connected via a predetermined network, and the data of the server is transmitted to the plurality of wireless terminals via the wireless base station. In a data distribution system that distributes to wireless terminals,
    Holding at least one base station identifier representing a specific radio base station and at least one data identifier representing specific data among a plurality of data stored in the server, wherein the base station identifier and the data identifier are A distribution control device provided with an identifier transmission means for transmitting to the server is connected to the network;
    The server includes data storage means for holding a plurality of data, data selection means for selecting specific data corresponding to the data identifier received from the distribution control apparatus, and a base station identifier received from the distribution control apparatus. Data transmitting means for transmitting the data selected by the data selecting means to a corresponding specific radio base station;
    Distribution information storage means for holding distribution information such as an address required for receiving broadcast-distributed data for each of a plurality of data stored in the data storage means;
    Distribution information selection means for selecting distribution information associated with one or more data identifiers selected by the distribution control device;
    List creation means for creating list information including the delivery information and heading information of data based on a plurality of pieces of delivery information selected by the delivery information selection means;
    A data distribution system comprising: list information transmission means for transmitting the list information created by the list creation means to a radio base station that distributes the corresponding data .
  3.   A wireless base station that broadcasts received data to a plurality of subordinate wireless terminals and a server that transmits the data are connected via a predetermined network, and the data of the server is transmitted to the plurality of wireless terminals via the wireless base station. In a data distribution system that distributes to wireless terminals,
      A distribution control apparatus comprising: identifier transmitting means connected to the network, storing at least one data identifier representing specific data among a plurality of data stored in the server, and transmitting the data identifier to the server; ,
      Connected to the network and received broadcast data sent from the server Both the data transfer means for transferring the broadcast data to a first device belonging to a subordinate network including one radio base station, and controls the operation of the data transfer means in accordance with a request from the first device. A data transfer device including a transfer control means, and
      The server includes a data storage unit that holds a plurality of data, a data selection unit that selects specific data corresponding to a data identifier received from the distribution control device, and a network that stores data selected by the data selection unit. Data transmission means for transmitting as broadcast data to the data transfer device via
      Providing data distribution information transmitting means for transmitting distribution information such as an address necessary for using broadcast data transmitted by the data transmitting means to the distribution control device;
      The distribution control device further includes data distribution information transfer means for transmitting the distribution information received from the server to at least one radio base station.
      A data distribution system characterized by that.
  4. A wireless base station that broadcasts received data to a plurality of subordinate wireless terminals and a server that transmits the data are connected via a predetermined network, and the data of the server is transmitted to the plurality of wireless terminals via the wireless base station. In a data distribution system that distributes to wireless terminals,
    A distribution control apparatus comprising: identifier transmitting means connected to the network, storing at least one data identifier representing specific data among a plurality of data stored in the server, and transmitting the data identifier to the server; ,
    Data transfer means connected to the network and receiving broadcast data sent from the server and transferring the broadcast data to a first device belonging to a subordinate network including at least one radio base station; And a data transfer device comprising transfer control means for controlling the operation of the data transfer means in accordance with a request from the first device,
    The server includes a data storage unit that holds a plurality of data, a data selection unit that selects specific data corresponding to a data identifier received from the distribution control device, and a network that stores data selected by the data selection unit. Data transmission means for transmitting as broadcast data to the data transfer device via
    Distribution information storage means for holding distribution information such as an address required for receiving broadcast-distributed data for each of a plurality of data stored in the data storage means;
    Distribution information selection means for selecting distribution information associated with one or more data identifiers selected by the distribution control device;
    List creation means for creating list information including the delivery information and heading information of data based on a plurality of pieces of delivery information selected by the delivery information selection means;
    A data distribution system comprising: list broadcast distribution means for distributing the list information created by the list creation means .
  5. A wireless base station that broadcasts received data to a plurality of subordinate wireless terminals and a server that transmits the data are connected via a predetermined network, and the data of the server is transmitted to the plurality of wireless terminals via the wireless base station. In a data distribution system that distributes to wireless terminals,
    A distribution control apparatus comprising: identifier transmitting means connected to the network, storing at least one data identifier representing specific data among a plurality of data stored in the server, and transmitting the data identifier to the server; ,
    Data transfer means connected to the network and receiving broadcast data sent from the server and transferring the broadcast data to a first device belonging to a subordinate network including at least one radio base station; And a data transfer device comprising transfer control means for controlling the operation of the data transfer means in accordance with a request from the first device,
    The server includes a data storage unit that holds a plurality of data, a data selection unit that selects specific data corresponding to a data identifier received from the distribution control device, and a network that stores data selected by the data selection unit. Data transmission means for transmitting as broadcast data to the data transfer device via
    Distribution information storage means for holding distribution information such as an address required for receiving broadcast-distributed data for each of a plurality of data stored in the data storage means;
    Distribution information selection means for selecting distribution information associated with one or more data identifiers selected by the distribution control device;
    List creation means for creating list information including the delivery information and heading information of data based on a plurality of pieces of delivery information selected by the delivery information selection means;
    A data distribution system comprising: list information transmission means for transmitting the list information created by the list creation means to a radio base station that distributes the corresponding data .
  6. The data distribution system according to claim 1 or 4 ,
    The server further includes distribution information notification means for notifying the distribution control device of distribution information such as an address required when receiving the list information when starting distribution of the list information. ,
    The data distribution system according to claim 1, wherein the distribution control device further includes distribution information notification transfer means for notifying the wireless base station of distribution information notified from the distribution information notification means of the server.
  7. 6. The data distribution system according to claim 2 or 5 , wherein when the distribution of the list information is started, the server sends distribution information such as an address necessary for receiving the list information to the radio base station. A data distribution system further comprising distribution information notifying means for notification.
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