JP2006155506A - Contents providing method, communication terminal of traveling object and contents providing server - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a contents providing method, the communication terminal of a traveling object and a contents providing server, which provide contents according to the type of a bearer to be used by the communication terminal of a traveling object. <P>SOLUTION: A server 50 receives a contents acquisition request transmitted from a communication terminal 10 of a traveling object, and acquires the information of a bearer used by the communication terminal 10 of the traveling object in transmitting the contents acquisition request among the plurality of types of bearers. Then, the server 50 determines the contents to be transmitted from the plurality of contents based on the information of the bearer used in transmitting the contents acquisition request in response to the contents acquisition request, and transmits the contents determined as the contents to be transmitted to the communication terminal 10 of the traveling object by the bearer used in transmitting the contents acquisition request. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a content providing method in a communication network such as a mobile phone communication network, a content providing server usable in the content providing method, and a mobile communication terminal such as a mobile phone.

2. Description of the Related Art Conventionally, a communication network in which a plurality of types of bearers are mixed is known as a communication network used for communication by mobile communication terminals such as this type of mobile phone. Here, it means an information carrying method specified by a combination of communication transmission capability, communication quality, encoding method, communication speed, and the like. Depending on the type of mobile communication terminal used by the user and the type of communication service, bearers for mobile phone communication networks, which are communication networks for mobile phones, include SMS (Short Message Service) bearers, GPRS (General Packet Radio Service) bearers, W-CDMA (Wideband Code Division Multiple Access) bearers, and the like are provided.
On the other hand, as a communication service using communication via the communication network, a mobile communication terminal can start browser software as a communication application and can access a content providing server on the communication network using a predetermined communication protocol. It is known (see, for example, Patent Document 1). In this mobile communication terminal, a content acquisition request can be transmitted to the content providing server by any one of the plurality of types of bearers, and contents such as WEB pages, music, and images can be downloaded from the content providing server.
JP 2004-86457 A

  However, the content providing server receives content acquisition requests from various mobile communication terminals by various bearers. Then, the content providing server transmits the content of the same size to the mobile communication terminal even when the bearer from which the mobile communication terminal has transmitted the content acquisition request is different. Therefore, depending on the type of content to be downloaded, there is a problem that it does not match the bearer's communication transmission capability, and it takes too much time to download the content.

  An object of the present invention is to provide a content providing method, a mobile communication terminal, and a content providing server that can provide content according to the type of bearer used by the mobile communication terminal.

In order to achieve the above object, the invention of claim 1 provides content that transmits content from a content providing server on the communication network to a mobile communication terminal that can communicate by any of a plurality of types of bearers in the communication network. A method in which the content providing server receives a content acquisition request transmitted from the mobile communication terminal, and the content providing server is configured such that the mobile communication terminal is the content of the plurality of types of bearers. A step of acquiring bearer information used at the time of transmission of the acquisition request, and a plurality of content providing servers in response to the content acquisition request based on bearer information used at the time of transmitting the content acquisition request. The content to be sent is determined from the contents of and determined as the send target The content by bearer used in the transmission of the content acquisition request is characterized in that comprising the step of transmitting to the mobile communication terminal.
The invention according to claim 2 is the content providing method according to claim 1, wherein the mobile communication terminal acquires terminal attribute information corresponding to the bearer used when transmitting the content acquisition request. A step of writing destination information in a content acquisition request for requesting content acquisition, and the mobile communication terminal sends a content acquisition request in which acquisition destination information of the terminal attribute information is written to a content providing server on the communication network And the step of acquiring the bearer information used when the content providing server transmits the content acquisition request is written in the content acquisition request by the content providing server. The terminal attribute information acquisition destination information is read, and the terminal attribute information is acquired based on the terminal attribute information acquisition destination information. It acquires the terminal attribute information from the providing server, by reading the information of the bearer included in the terminal attribute information, and is characterized in obtaining the information of the bearer.
The invention according to claim 3 is the content providing method according to claim 1, wherein the mobile communication terminal writes bearer information used in transmission of the content acquisition request in the content acquisition request; The mobile communication terminal further comprising: transmitting the content acquisition request in which bearer information used when transmitting the content acquisition request is written to the content providing server, wherein the content providing server includes the content The step of acquiring bearer information used in transmitting the acquisition request is characterized in that the content providing server acquires the bearer information by reading the bearer information from the content acquisition request. To do.
According to a fourth aspect of the present invention, there is provided a content providing server for transmitting content to a mobile communication terminal capable of communicating by any of a plurality of types of bearers in a communication network by communication using a predetermined communication protocol. Content storage means for storing target content, content acquisition request receiving means for receiving a content acquisition request transmitted from the mobile communication terminal, and the mobile communication terminal out of the plurality of types of bearers Bearer information acquisition means for acquiring bearer information used at the time of transmission, transmission means for transmitting content read from the content storage means to the mobile communication terminal, and the content acquisition in response to the content acquisition request Multiple containers based on the bearer information used when sending the request. And a control means for controlling the content transmission so as to determine the content to be transmitted from the mobile phone and transmit the content determined as the transmission target to the mobile communication terminal by the bearer. .
The invention according to claim 5 is the content providing server according to claim 4, wherein the bearer information acquisition means acquires terminal attribute information corresponding to the bearer used when transmitting the content acquisition request. Acquisition destination information reading means for reading the acquisition destination information from the content acquisition request, terminal attribute information acquisition means for acquiring the terminal attribute information from the terminal attribute information providing server based on the acquisition destination information, and the terminal attribute information It is characterized by comprising bearer information reading means for reading the bearer information used when transmitting the content acquisition request included.
The invention according to claim 6 is the content providing server according to claim 4, wherein the bearer information acquisition means reads the bearer information used when transmitting the content acquisition request from the content acquisition request. It is characterized by using information reading means.
The invention of claim 7 is a mobile communication terminal capable of communicating by any of a plurality of types of bearers having different communication transmission capabilities in a communication network, and a content acquisition request among the plurality of types of bearers in the communication network The acquisition destination information writing means for writing the acquisition destination information for acquiring the terminal attribute information corresponding to the bearer used at the time of transmission to the content acquisition request, and the content acquisition request in which the acquisition destination information is written, Content acquisition request transmitting means for transmitting to the above content providing server, and receiving content transmitted from the content providing server based on bearer information used when transmitting the content acquisition request in response to the content acquisition request Content receiving means It is intended.
The invention of claim 8 is a mobile communication terminal capable of communication by any of a plurality of types of bearers in a communication network, and bearer information used when transmitting a content acquisition request among the plurality of types of bearers. And a content acquisition request transmitting means for transmitting the content acquisition request in which the bearer information used in transmitting the content acquisition request is written to a content providing server on a communication network. And content receiving means for receiving content transmitted from the content providing server based on bearer information used when transmitting the content acquisition request in response to the content acquisition request. To do.

Examples of the “content” include WEB page data, various files such as image files, music files, and program files, and streaming data such as images and music.
Further, as the “mobile communication terminal”, mobile phones such as PDC (Personal Digital Cellular) system, GSM (Global System for Mobile Communication) system, TIA (Telecommunications Industry Association) system, IMT (International Mobile Telecommunications) -2000, etc. Mobile phones standardized in TD-SCDMA (Time Division Synchronous Code Division Multiple Access) TD-SCDMA (MC: Multi Carrier) mobile phone, PHS (Personal Handyphone System), automobile phone, etc. A telephone having a call function is exemplified. Examples of the “mobile communication terminal” include a communication terminal such as a PDA (Personal Digital Assistance) having a call function in addition to the above telephone.
The control and information processing in the mobile communication terminal and server can also be realized by executing a predetermined program on a computer provided in each of the mobile communication terminal and the server. Delivery of the program used in the computer may be performed using a recording medium such as an FD or CD-ROM in which the program is recorded as digital information, or may be performed using a communication network such as a computer network.

  As the “communication protocol”, HyperText Transfer Protocol (HTTP), Wireless HyperText Transfer Protocol (W-HTTP), Wireless Transaction Protocol (WTP), Wireless Session Protocol (WSP), and the like can be used. When HTTP such as W-HTTP is used as the communication protocol, an HTTP request is transmitted and received as the content acquisition request. When the bearer information is written in the HTTP request, the bearer information can be written, for example, in a user agent header field added to the HTTP request header.

  According to the first to eighth aspects of the present invention, when the content providing server receives the content acquisition request from the mobile communication terminal, the mobile communication terminal transmits the content acquisition request among a plurality of types of bearers in the communication network. Get bearer information used for. In response to the content acquisition request, the content providing server determines content to be transmitted from a plurality of contents based on the acquired bearer information, and the content determined as the transmission target is transferred by the bearer that has acquired the information. Send to communication terminal. In this way, the mobile communication terminal transmits the content determined based on the bearer information used when transmitting the content acquisition request to the mobile communication terminal, so depending on the type of bearer used by the mobile communication terminal There is an effect that content can be provided.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an explanatory diagram showing an example of a schematic configuration of the entire communication system according to the present embodiment. This communication system is configured using a mobile phone 10 as a mobile communication terminal and a mobile phone communication network 20 as a communication network. The cellular phone communication network 20 includes a base station 21, a core network 22, and an IP (Internet Protocol) network 23.
1 is a portion that can be used as a GPRS bearer or a W-CDMA bearer among a plurality of types of bearers such as an SMS bearer, a GPRS bearer, and a W-CDMA bearer. The configuration of is shown.

  The base station 21 is provided for each cell to be controlled, converts data from a wired line in the mobile phone communication network 20 into a data format suitable for the wireless interface, and wirelessly transmits to the mobile phone 10 in the cell to be controlled. Transmit at frequency. Conversely, data from the cellular phone 10 transmitted at a radio frequency is received and converted into a data format suitable for the wired interface, and transferred to the wired line portion in the cellular phone communication network 20.

The core network 22 has a location registration database (HLR, VLR), a subscriber database, a billing system, and the like (not shown), and performs communication control so as to relay communication between mobile phones. Furthermore, the core network 22 performs communication control so as to relay communication between each mobile phone and the components in the mobile phone communication network 20. The core network 22 performs communication control so as to relay communication between each mobile phone and another communication network.
The core network 22 has a packet switching network in addition to a circuit switching network. This packet switching network has nodes such as SGSN (Serving GPRS Support Node) 24 and GGSN (Gateway GPRS Support Node) 25. The SGSN 24 has a gateway function between a radio network controller (not shown) to which the base station 21 is connected and a packet switching network on the core network 22 side, a function of performing location management, security management, and access control of each mobile phone 10. have. The GGSN 25 has a gateway function between the packet switching network on the core network 22 side and the IP network 23.

The IP network 23 includes a proxy server 26, a gateway server 27, and a WEB server (not shown). The proxy server 26 performs processing for relaying communication between each mobile phone 10 and a server in the IP network 23 or a server on the Internet. This proxy server 26 also has a protocol conversion function for matching both communication protocols when the communication protocol in the core network 22 and the communication protocol in other communication networks such as the IP network 23 and the Internet 30 are different.
In this IP network 23, a WEB server or a download server for downloading contents may be provided.

  The gateway server 27 has a gateway function and a firewall function between the IP network 23 of the mobile phone communication network 20 and the Internet 30.

  Various content providing servers are connected to the Internet 30 connected via the IP network 23 of the cellular phone communication network 20. Examples of the content providing server include a WEB server 40 that provides a WEB page, a download server 50 that mainly provides content such as an image file, a music file, and a program file.

  Also connected to the Internet 30 are profile repositories 60 and 61 as terminal attribute information servers that provide terminal attribute information (profiles) of various types of mobile phones 10. This profile repository can be provided for each mobile phone manufacturer or for each mobile phone model and generation. In the example in FIG. 1, a profile repository 60 for a mobile phone of company A and a profile repository 61 for a mobile phone of company B are provided.

  In predetermined URIs (Uniform Resource Identifiers) of the profile repositories 60 and 61, UA profiles of various types of mobile phones 10 of various companies are stored. Upon receiving the content acquisition request from the mobile phone 10, the WEB server 40 and the download server 50 access the URI profile repository written in the content acquisition request, and various types of mobile phones 10 that have transmitted the content acquisition request. Terminal attribute information can be acquired.

The terminal attribute information (profile) is hardware information, software information, network information, UA (user agent) information of the browser, etc. (hereinafter, this terminal attribute information is referred to as “UAProf information”). The hardware information is information such as screen size, presence / absence of a color display function, display character type, presence / absence of an image display function, manufacturer name, model name, and the like. The software information is information about the OS, audio / video encoder, JAVA (registered trademark) virtual machine, and the like. The network information is information such as network service, security, bearer name to be supported, bearer name during communication. The UA (User Agent) information of the browser is information such as a browser name, an HTML version, and frame availability.
In the present embodiment, the bearer name included as network information of the UAProf information is used as information on a bearer that is in communication use when the mobile phone 10 transmits a content acquisition request.
The UAProf information is described in a tree-structured metadata expression model syntax that conforms to XML (eXtensible Markup Language) and RDF (Resource Description Framework), and is stored as an XML file. The UAProf information file is stored as a separate file for each model of mobile phone. In addition, when a plurality of types of bearers can be used by the same type of mobile phone, each type of bearer is stored as a separate file. For example, when bearers that can be used in a specific model of a cellular phone of a manufacturer are a GPRS bearer and a W-CDMA bearer, “profile_gprs.xml” and “profile_gprs.xml” and “ profile_wcdma.xml "is saved.

  When content is downloaded from the various content providing servers on the Internet 30 to the mobile phone 10, a predetermined communication protocol is used in each layer of the network. For example, communication protocols in the application layer when downloading contents such as WEB pages, music, images, and programs from the WEB server 40 and the download server 50 are HTTP (HyperText Transfer Protocol) and W-HTTP (Wireless HyperText Transfer Protocol). WTP (Wireless Transaction Protocol), WSP (Wireless Session Protocol), etc. are used.

FIG. 2 is a block diagram illustrating an example of a hardware configuration of the download server 50. The WEB server 40 and profile repositories (terminal attribute information servers) 60 and 61 can be similarly configured.
The download server 50 includes a system bus 500, a CPU 501, an internal storage device, an external storage device 504, an input device 505, an output device 506, and an Internet communication device 507. The internal storage device includes a RAM 502, a ROM 503, and the like. The external storage device includes a hard disk drive (HDD), an optical disk drive, and the like. The input device 505 includes a mouse, a keyboard, and the like. The output device 506 is configured by a display, a printer, or the like. The Internet communication device 507 is a device for communicating with various client terminals and other servers on the Internet 30 and communicating with the proxy server 26 on the mobile phone communication network 20 by a predetermined communication protocol. .
The components such as the CPU 501 and the RAM 502 exchange data and program instructions with each other via the system bus 500. A program for operating the download server 50 in accordance with a predetermined procedure is stored in the ROM 503 or the external storage device 504, and is called up and executed in the work area on the CPU 501 or RAM 502 as necessary.

  Each of the content providing servers such as the WEB server 40 and the download server 50 and the profile repositories (terminal attribute information servers) 60 and 61 may be configured by a single computer or a plurality of units each having a plurality of functions. These computers may be connected by a network.

  FIG. 3 is a block diagram showing an example of a hardware configuration of the proxy server 26 provided in the mobile phone communication network 20. The proxy server 26 can be configured by hardware similar to the download server 50 shown in FIG. The proxy server 26 includes an IP network communication device 267 for connecting to the IP network 23 of the cellular phone communication network 20 instead of the Internet communication device 507. The IP network communication device 267 is a device for communicating with the GGSN 25 on the core network 22 side and other servers in the IP network 23 by a predetermined communication protocol.

FIG. 4 is a functional block diagram showing extracted main functions of the download server 50 according to the present embodiment. Since the WEB server 40 has the same function as the download server 50, the description thereof is omitted.
The download server 50 includes a content storage unit 510, a content acquisition request receiving unit 511, a bearer information acquisition unit 512, a content transmission unit 513, and a control unit 514. The bearer information acquisition unit 512 is further configured by using an acquisition destination information reading unit 512a, a terminal attribute information acquisition unit 512b, and a bearer information reading unit 512c. The download server 50 implements the functions of an acquisition destination information reading unit 512a, a bearer information reading unit 512c, and a control unit 514 by executing a predetermined program on hardware such as a CPU.

  The content storage unit 510 includes the internal storage device and the external storage device, and stores contents such as music to be provided, images, application programs, and WEB page data in a database. The content storage unit 510 stores a plurality of contents having sizes and data formats suitable for each of the plurality of types of bearers for each content title and content ID that can be specified by a content acquisition request from the mobile phone 10. Yes. For example, content having a small size suitable for a GPRS bearer and content having a large size suitable for a W-CDMA bearer are stored for one content title.

  The content acquisition request receiving unit 511 includes the Internet communication device 507 and the like, and receives a content acquisition request transmitted from the mobile phone 10 using a predetermined communication protocol. For example, the content acquisition request receiving unit 511 receives an HTTP request transmitted from the mobile phone 10.

The acquisition destination information reading unit 512a that constitutes a part of the bearer information acquisition unit 512 includes the CPU 501 and the like, and acquires a UAProf information file corresponding to the bearer used when the mobile phone 10 transmits a content acquisition request. Information to be acquired (URI of the profile repository) is read from the content acquisition request received from the mobile phone 10.
The terminal attribute information acquisition unit 512b includes the Internet communication device 507 and the like. Based on the predetermined acquisition source information (URI) read by the acquisition source information reading unit 512a, the file of the UAProf information is obtained from the profile repository. get. For example, the terminal attribute information acquisition unit 512b transmits an HTTP request for downloading and acquiring a predetermined UAProf information file to the profile repository of the acquisition destination information (URI), and the predetermined UAProf information file An HTTP response containing is received from the profile repository.
The bearer information reading unit 512c includes the CPU 501 and the like, and reads bearer information written in the UAProf information file received from the profile repository.

  The content transmission unit 513 includes the Internet communication device 507 and the like, and transmits the content read from the content storage unit 510 to the mobile phone 10 via the Internet 30 and the mobile phone communication network 20.

  The control means 514 is configured by the CPU 501 and the like, and in response to a content acquisition request received from the mobile phone 10, from a plurality of contents to the bearer based on the bearer information used when transmitting the content acquisition request. A suitable content to be transmitted is determined. Then, the control unit 514 controls the content transmission so that the content determined as the transmission target is transmitted to the mobile phone 10 by the bearer used when the content acquisition request is transmitted.

FIG. 5 is an external view showing a configuration example of the mobile phone 10, and FIG. 6 is a schematic configuration diagram showing a hardware configuration of the mobile phone 10. FIG. 7 is an explanatory diagram of a software structure in the mobile phone 10.
The mobile phone 10 is a clamshell (folding) type mobile phone, and includes a system bus 100, a CPU 101, a storage device such as a RAM 102 and a ROM 103, an input device 104, an output device 105, and a communication device 106 for a mobile phone communication network. ing. Components such as the CPU 101 and the RAM 102 exchange various data and program instructions with each other via the system bus 100.

  The CPU 101 reads and executes a predetermined program from the storage device, thereby performing various functions such as a voice call function and application software (hereinafter referred to as “application”) on the basic software OS of the native telephone platform. Can be realized. Functions by this application include a WEB browser, mailer, music playback, moving image display, data transmission / reception with an external device, address book management, scheduler, memo pad, and the like.

  Further, the CPU 101 can construct an application execution environment different from the native telephone platform by reading and executing a predetermined program from the storage device. In the application execution environment, various applications such as an application preinstalled in the mobile phone and an application downloaded and registered by the user can be executed. Examples of this application include an application written in a programming language such as JAVA (registered trademark) or C ++ developed by platform-independent object-oriented programming, an application written in C language, or an assembly language. Also, these application execution environments are constructed by middleware such as JAVA (registered trademark) virtual machine (VM) or BREW (registered trademark).

  The input device 104 includes a data input key (ten key, * key, # key) 11, a call start key 12, an end key 13, a scroll key 14, a multi-function key 15, a microphone 16, and the like. The numeric keypad 11, the call start key 12, the call end key 13, and the like of the input device 104 constitute an operation unit that can be operated by the user. By operating this operation unit, the user inputs data such as the URL of the content acquisition destination to the mobile phone 10, starts and ends a call when receiving a call, and selects an application program Can be started and stopped. In addition, the user can download and register contents such as image files, music files, and application programs from the download server 50 by operating the operation unit. In addition, by operating the operation unit, the user can expand and display a registered image file, expand and play a music file, and select and execute an application program. The user can also display information received from an information distribution server (not shown) of the mobile phone communication network 20 by operating the operation unit.

The output device 105 includes a liquid crystal display (LCD) 17 as a display means, a speaker 18, a vibration device (not shown), and the like. An output unit composed of an output device or the like including the liquid crystal display (LCD) 17 and the speaker 18 displays a Web page received via the mobile phone communication network 20 on the liquid crystal display (LCD) 17 or a mobile phone. This is used when notifying the user that information has been received from the telephone communication network 20. Specifically, when the information is received, an incoming call notification image is displayed on the liquid crystal display (LCD) 17 of the output unit, or a ringing tone is output from the speaker 18. This output unit is also used for displaying images and sound output related to the execution of the application program such as the game, or for displaying information received from the information distribution server. Used.
The speaker 18 may be configured by separately providing a receiver speaker (receiver) for listening to a voice during a call and an external output speaker for outputting a ring tone or music. You may comprise by one speaker so that the speaker for receivers and the speaker for external outputs may be combined.

  The vibration device that constitutes the output device 105 is the whole of the mobile phone 10 when a voice call is received or mail or various distribution information is received when the manner mode (silent mode) is set. Can be controlled to notify the user of the incoming call. In addition, the vibration device can be controlled to generate vibration related to the execution of the program throughout the mobile phone 10 during execution of the application program such as the game.

  The mobile phone communication network communication device 106 includes a modem, a synthesizer, a frequency converter, a high frequency amplifier, and the like, and communicates with other mobile phones, the above-described server 11 and the like via the mobile phone communication network 20. Used. The mobile phone communication network communication device 106 exchanges mails with other mobile phones via the mobile phone communication network 20, or external communication networks such as the Internet from the mobile phone communication network 20 via a gateway server. And is used as a communication means for exchanging electronic mail on the Internet. Further, the mobile phone communication network communication device 106 downloads an application program provided by the download server 50 via the mobile phone communication network 10 or receives distribution information including position information of the current position. Also used as receiving means.

FIG. 8 is a functional block diagram showing extracted main functions of the mobile phone 10 according to the present embodiment. The cellular phone 10 includes an acquisition destination information writing unit 110, a content acquisition request transmission unit 111, and a content reception unit 112.
The acquisition destination information writing means 110 is constituted by the CPU 101 and the like, and writes acquisition destination information (URI) for acquiring a file of predetermined UAProf information (profile) in the content acquisition request. This file of UAProf information (profile) corresponds to the bearer used at the time of transmitting the content acquisition request among the plural types of bearers in the mobile phone communication network 20.
The content acquisition request transmission unit 111 is configured by the mobile phone communication network communication device 106 and the like, and transmits the content acquisition request in which the acquisition destination information (URI) is written to the download server 50.
The content receiving means 112 is configured by the mobile phone communication network communication device 106 or the like, and transmits the content acquisition request from the download server 50 based on the bearer information used when transmitting the content acquisition request. Received content such as images, music, and application programs.

FIG. 9 is a sequence diagram illustrating an example of a procedure when an application such as a browser is activated on the mobile phone 10 and content is downloaded from the download server 50 using W-HTTP. FIG. 9 shows a case where the download server 50 determines the content to be transmitted based on the bearer information written in the UA profile.
First, the user starts an application such as a browser by operating the mobile phone 10 (step S1).
Next, the user accesses the WEB server 40 to display the content-provided WEB page, and performs a key operation to select a desired content title in the content list. When the mobile phone 10 accepts this key operation, a file of a UA profile corresponding to the bearer (W-CDMA) used for transmission of the HTTP request is stored in a predetermined header field of the HTTP request (GET) to be transmitted. Acquisition destination information (URI) for acquisition is written (steps S2 and S3).
The acquisition source information (URI) corresponding to the bearer (W-CDMA) used when transmitting the HTTP request is written in the “x-wap-profile” header field as follows, for example.
x-wap-profile: http://www.aaa.bbb.com/uaprof/profile_wcdma.xml
When the bearer used when transmitting the HTTP request is GPRS, the acquisition source information (URI) is written in the “x-wap-profile” header field as follows, for example.
x-wap-profile: http://www.aaa.bbb.com/uaprof/profile_gprs.xml

Next, the cellular phone 10 transmits an HTTP request in which the acquisition source information is written to the download server 50 (step S4).
Upon receiving the HTTP request, the download server 50 reads the acquisition destination information (URI) written in the HTTP request, and transmits the HTTP request to the profile repository 60 corresponding to the read acquisition destination information (URI). HTTP (GET) for acquiring a UA profile file corresponding to the bearer (W-CDMA) used at the time of transmission is transmitted (step S5).

  Next, the profile repository 60 searches the UA profile database, extracts the UA profile file requested by the download server 50, and transmits it to the download server 50 (steps S6 and S7).

Next, the download server 50 receives the UA profile file from the profile repository 60 and reads the bearer information “W-CDMA” written in the UA profile file (step S8).
Next, based on the read bearer information, the download server 50 is suitable for the bearer currently in use and connected from a plurality of contents corresponding to the content title and content ID specified in the content acquisition request from the mobile phone 10. The content is determined as the content to be transmitted (step S9). In the case of this example, since the read bearer information is “W-CDMA” having a high communication transmission capability, content having a large size suitable for the W-CDMA bearer is determined as the content to be transmitted. When the bearer information is “GPRS”, content having a small size suitable for the GPRS bearer is determined as the content to be transmitted.

The content having the large size and the content having the small size include the following content.
For example, when the content corresponding to the content acquisition request is music or video, the large size content is high-quality / sound-quality content having a high bit rate, and the small size content has a low bit rate. This is low-quality / sound-quality content.
In addition, when the content corresponding to the content acquisition request is a movie or the like, the large size content is a content such as a full movie, and the small size content is a digest (extract) version of a movie content or the like.

Next, the download server 50 reads the content determined based on the bearer information from the content database, and transmits an HTTP response including the read content data to the mobile phone 10 (step S10).
When the mobile phone 10 receives the HTTP response, the mobile phone 10 can output or save the content included in the HTTP response (step S11).

  As described above, according to the present embodiment, when the download server 50 receives an HTTP request as a content acquisition request from the mobile phone 10, the profile repository 60 is accessed based on the acquisition destination information (URI) read from the HTTP request. Then, a UA profile file in which bearer information and the like during communication connection is written is acquired. In response to the HTTP request, the download server 50 determines the content to be transmitted from a plurality of contents based on the bearer information used when transmitting the HTTP request, and selects the content determined as the transmission target. It transmits to the mobile telephone 10 by the bearer used at the time of transmission of the said content acquisition request. Thus, since the content determined based on the bearer information used when the mobile phone 10 transmits the content acquisition request is transmitted to the mobile phone 10 by the bearer, the content depends on the type of bearer used by the mobile phone 10. Content.

In the above embodiment, the bearer information used when transmitting the content acquisition request is read from the UAProf information (profile) file. However, the bearer information may be read from the HTTP request received from the mobile phone 10. Good.
FIG. 10 is a functional block diagram showing extracted main functions of the download server 50 when bearer information is read from an HTTP request received from the mobile phone 10. The download server 50 in this case has bearer information reading means 512d as the bearer information acquisition means 512. The bearer information reading unit 512d is configured by the CPU 501 and the like, and reads bearer information used at the time of transmitting the HTTP request from the HTTP request as a content acquisition request.
FIG. 11 is a functional block diagram showing extracted main functions of the cellular phone 10 when bearer information is read from the HTTP request received from the cellular phone 10. The mobile phone 10 in this case has bearer information writing means 113 instead of the acquisition source information writing means 110 in FIG. The bearer information writing unit 113 writes bearer information used when transmitting the content acquisition request in the HTTP request as the content acquisition request.

FIG. 12 is a sequence diagram showing an example of a procedure when content is downloaded using W-HTTP from the download server 50 that determines content to be transmitted based on bearer information written in the HTTP request. .
First, the user starts an application such as a browser by operating the mobile phone 10 (step S1).
Next, the user accesses the WEB server 40 to display the content-provided WEB page, and performs a key operation to select a desired content title in the content list. When the cellular phone 10 accepts this key operation, it writes the bearer (W-CDMA) information used when transmitting the HTTP request in a predetermined header field of the HTTP request (GET) to be transmitted (step S2). , S3).
The bearer (W-CDMA) information used when transmitting the HTTP request is written in the “x-wap-profile” header field as follows, for example.
x-wap-profile: http://www.aaa.bbb.com/uaprof/profile_wcdma.xml

Next, the cellular phone 10 transmits an HTTP request in which the bearer information is written to the download server 50 (step S4).
Upon receiving the HTTP request, the download server 50 reads the bearer information “W-CDMA” written in the HTTP request, and acquires content from the mobile phone 10 based on the read bearer information “W-CDMA”. From a plurality of contents corresponding to the content title and content ID specified in the request, content suitable for the bearer being used and connected is determined as the content to be transmitted (step S5). In the case of this example, since the read bearer information is “W-CDMA” having a high communication transmission capability, content having a large size suitable for the W-CDMA bearer is determined as the content to be transmitted. When the bearer information is “GPRS”, content having a small size suitable for the GPRS bearer is determined as the content to be transmitted.

Next, the download server 50 reads the content determined based on the bearer information from the content database, and transmits an HTTP response including the read content data to the mobile phone 10 (step S7).
When the mobile phone 10 receives the HTTP response, the mobile phone 10 can output or save the content included in the HTTP response (step S11).

BRIEF DESCRIPTION OF THE DRAWINGS Explanatory drawing which shows an example of schematic structure of the whole communication system which concerns on embodiment of this invention. The block diagram which shows an example of the hardware constitutions of a download server. The block diagram which shows an example of the hardware constitutions of a proxy server. The functional block diagram which extracted and showed the main functions of the download server. The external view which shows the example of 1 structure of a mobile telephone. The schematic block diagram which shows the hardware constitutions of a mobile telephone. Explanatory drawing of the software structure in a mobile telephone. The functional block diagram which extracted and showed the main functions of the mobile phone. The sequence diagram which shows an example of the procedure at the time of starting the application of a browser with a mobile telephone and downloading a content using W-HTTP. The functional block diagram which extracted and showed the main functions of the download server which concerns on other embodiment. The functional block diagram which extracted and showed the main functions of the mobile telephone which concerns on other embodiment. The sequence diagram which shows an example of the procedure when starting the application of a browser with the mobile telephone which concerns on other embodiment, and downloading a content using W-HTTP.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Mobile phone 20 Mobile phone communication network 26 Proxy server 30 Internet 40 WEB server 50 Download server 60, 61 Profile repository

Claims (8)

A content providing method for transmitting content from a content providing server on a communication network to a mobile communication terminal capable of communicating by any of a plurality of types of bearers in a communication network,
The content providing server receiving a content acquisition request transmitted from the mobile communication terminal;
The content providing server acquires information on a bearer used when the mobile communication terminal transmits the content acquisition request among the plurality of types of bearers;
In response to the content acquisition request, the content providing server determines content to be transmitted from a plurality of contents based on bearer information used when transmitting the content acquisition request, and the content determined as the transmission target Transmitting to the mobile communication terminal by a bearer used in transmitting the content acquisition request. The content providing method according to claim 1,
Writing the acquisition destination information for acquiring terminal attribute information corresponding to the bearer used when the mobile communication terminal transmits the content acquisition request in the content acquisition request for requesting the content acquisition;
The mobile communication terminal further transmits a content acquisition request in which the acquisition destination information of the terminal attribute information is written to a content providing server on the communication network,
The step of acquiring the bearer information used when the content providing server transmits the content acquisition request is performed by the content providing server using the acquisition destination information of the terminal attribute information written in the content acquisition request. Read, acquire the terminal attribute information from the terminal attribute information providing server based on the acquisition destination information of the terminal attribute information, and acquire the bearer information by reading the bearer information included in the terminal attribute information A content providing method characterized by the above. The content providing method according to claim 1,
The mobile communication terminal writing bearer information used when transmitting the content acquisition request in the content acquisition request;
The mobile communication terminal further comprising: transmitting the content acquisition request in which bearer information used in transmitting the content acquisition request is written to the content providing server;
The step of acquiring the bearer information used when the content providing server transmits the content acquisition request is performed by reading the bearer information from the content acquisition request by the content providing server. The content providing method characterized by acquiring. A content providing server for transmitting content by communication using a predetermined communication protocol to a mobile communication terminal capable of communication by any of a plurality of types of bearers in a communication network,
Content storage means for storing content to be provided;
Content acquisition request receiving means for receiving a content acquisition request transmitted from the mobile communication terminal;
Bearer information acquisition means for acquiring the bearer information used when the mobile communication terminal transmits the content acquisition request among the plurality of types of bearers;
Transmitting means for transmitting the content read from the content storage means to the mobile communication terminal;
In response to the content acquisition request, content to be transmitted is determined from a plurality of contents based on bearer information used when transmitting the content acquisition request, and the content determined as the transmission target is moved by the bearer. A content providing server comprising control means for controlling content transmission so as to transmit to a body communication terminal. The content providing server according to claim 4,
The bearer information acquisition means is
Acquisition destination information reading means for reading out acquisition destination information for acquiring terminal attribute information corresponding to the bearer used at the time of transmission of the content acquisition request from the content acquisition request;
Terminal attribute information acquisition means for acquiring the terminal attribute information from the terminal attribute information providing server based on the acquisition source information;
A content providing server, comprising: bearer information reading means for reading bearer information used when transmitting the content acquisition request included in the terminal attribute information. The content providing server according to claim 4,
The content providing server, wherein the bearer information acquisition unit is configured using a bearer information reading unit that reads bearer information used when transmitting the content acquisition request from the content acquisition request. A mobile communication terminal capable of communicating by any of a plurality of types of bearers having different communication transmission capabilities in a communication network,
Acquisition destination information writing means for writing acquisition destination information for acquiring terminal attribute information corresponding to the bearer used when transmitting a content acquisition request among a plurality of types of bearers in the communication network;
Content acquisition request transmitting means for transmitting the content acquisition request in which the acquisition destination information is written to a content providing server on a communication network;
A mobile unit comprising: content receiving means for receiving content transmitted from the content providing server based on bearer information used when transmitting the content acquisition request in response to the content acquisition request Communication terminal. A mobile communication terminal capable of communicating by any of a plurality of types of bearers in a communication network,
Bearer information writing means for writing the bearer information to be used for transmission of the content acquisition request among the plurality of types of bearers to the content acquisition request;
Content acquisition request transmitting means for transmitting the content acquisition request in which the bearer information used for transmitting the content acquisition request is written to a content providing server on a communication network;
A content receiving unit configured to receive content transmitted from the content providing server based on bearer information used when transmitting the content acquisition request in response to the content acquisition request; Body communication terminal.

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