WO2007107064A1

WO2007107064A1 - A method and system for delivering dynamic content

Info

Publication number: WO2007107064A1
Application number: PCT/CN2006/003706
Authority: WO
Inventors: Jin Peng; Hongtao Gao
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2006-03-23
Filing date: 2006-12-30
Publication date: 2007-09-27
Also published as: CN1859270A

Abstract

A method and server and system are used to deliver the dynamic content. The method includes acquiring the size of the available memory space of the terminal device; processing the dynamic content that is to be delivered to the terminal device according to the size of the available memory space of the terminal device; and delivering the dynamic content that has been processed to the terminal device. That acquiring the size of the available memory space of the terminal device before the dynamic content is delivered to the terminal device avoids the problem that the content is failed to deliver because the size of memory space of the terminal is insufficient, and saves the network bandwidth resource and the calculation, memory resource of the server and the client.

Description

Dynamic content transmission method and system

The present invention relates to the field of communications, and in particular, to a dynamic content delivery method and a dynamic content delivery system. Background technique

Dynamic content delivery is a technology based on a client/server architecture for delivering personalized content to mobile end users. By customizing the content, the server will personalize the content according to user parameters, user's location, online status, etc., and periodically deliver the content to the user terminal.

In the prior art solution, the process of content delivery includes the following steps:

The terminal uses a Hyper Text Transport Protocol (HTTP) or a Wireless Access Protocol (WAP) to send a dynamic content delivery request to a Dynamic Content Delivery (DCD) server through a Request message. The terminal capability information is carried in the request; the terminal capability information is in accordance with the User Agent Profile (UAProf) standard, and the terminal storage space status information is not included in the terminal capability information.

After receiving the dynamic content transmission request sent by the terminal, the DCD server parses the content of the request and the terminal capability information, and processes the dynamic content of the request according to the setting parameter and the terminal capability information of the user; including: changing the length of the video content, and the content of the text Intercepting a certain part, adapting the resolution of the image content, etc., and generating the content to be sent; the content is sent to the terminal;

The terminal receives the content while storing the content in a local storage space;

If there is insufficient local storage space, the terminal prompts the user and interrupts the dynamic content delivery session with the DCD server.

The disadvantages of the above prior art are as follows: The DCD server and the terminal do not compare the transfer content size and the available storage space of the terminal before the dynamic content transfer starts. When the transfer content size is larger than the available storage space on the terminal, the transfer still starts, and the storage space on the terminal is used up. When the transfer is interrupted, the content transfer cannot be completed eventually. Therefore, in the prior art solution, the personalized dynamic content is directly sent to the terminal without considering the available storage space of the terminal. When the available storage space of the terminal is smaller than the dynamic content of the transmission, the transmission cannot be completed, resulting in A waste of network transmission bandwidth. In addition, since the personalized processing is a process that consumes resources of the DCD server system, if the transmission cannot be completed normally due to the size of the available storage space of the terminal after the personalized processing, the DCD server system resources are wasted. Summary of the invention

Embodiments of the present invention provide a dynamic content delivery method and system, which are used to solve the existing storage space available in the prior art;

The problem of wasting network transmission resources and dynamic content delivery server and terminal device resources.

A dynamic content delivery method, comprising:

Obtain the available storage space of the terminal device;

And processing the dynamic content sent to the terminal device according to the available storage space of the terminal device; and sending the processed dynamic content to the terminal device.

A dynamic content delivery server, comprising:

a first processing module, configured to acquire a size of available storage space of the terminal device, and transmit the size to the second processing module;

a second processing module, configured to compare a storage space size of the terminal device and a dynamic content size to be sent to the terminal device, and process the dynamic content sent to the terminal device when the available storage space of the terminal device is smaller than the dynamic content size; Transmitting the processed dynamic content to the content sending module;

a content sending module, configured to send the processed dynamic content to the terminal device.

A dynamic content delivery system, comprising: a dynamic content delivery server and a terminal device; The dynamic content delivery server is configured to acquire a size of an available storage space of the terminal device that receives the dynamic content; and process the dynamic content sent to the terminal device according to the available storage space size of the terminal device, and process the processed content. Dynamic content is sent to the terminal device.

According to the dynamic content delivery method and system provided by the embodiment of the present invention, before the dynamic content delivery server personalizes the dynamic content, the dynamic content delivery server first knows the storage space state information of the terminal, and performs the content to be sent according to the available storage space size of the terminal device. Processing such as compression, reduction, and replacement, so that the personalized dynamic content can be stored by the terminal device and then sent to the terminal device; when the personalized dynamic content size is greater than the available storage space of the terminal device, delay or Cancel sending. In this way, the problem of content transmission failure due to insufficient storage space of the terminal is avoided, and the network bandwidth resource and the calculation and storage resources of the server and the client are saved. DRAWINGS

1 is a signaling flowchart of a dynamic content transmission request initiated by a terminal device and reporting terminal storage space state information to implement dynamic content transmission according to Embodiment 1 of the present invention;

2 is a signaling flow diagram of a dynamic content transmission request initiated by a terminal device by a terminal device, and a DCD server obtains terminal storage space state information to implement dynamic content transmission according to Embodiment 2 of the present invention;

3 is a signaling flow diagram of a dynamic content transmission request initiated by a terminal device by a terminal device, and a DCD server obtains terminal storage space state information to implement dynamic content transmission according to Embodiment 3 of the present invention;

4 is a signaling flowchart of obtaining dynamic storage of terminal storage space state information by the DCD server when dynamic content transmission is initiated by the DCD server according to Embodiment 4 of the present invention;

FIG. 5 is a signaling flowchart of obtaining dynamic storage of terminal storage space status information from a DPE server when dynamic content transmission is initiated by a DCD server according to Embodiment 5 of the present invention;

6 is a schematic structural diagram of a dynamic content delivery server according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a dynamic content delivery system according to an embodiment of the present invention. detailed description

The dynamic content sending method provided by the embodiment of the present invention includes: acquiring, by the DCD server, the available storage space size of the terminal device; processing the dynamic content sent to the terminal device according to the available storage space size of the terminal device; When the content can satisfy the storage space available by the terminal, the dynamic content is sent to the terminal device.

The details are described below in conjunction with the drawings.

According to the difference of the dynamic content sending trigger mode, it can be divided into two cases initiated by the terminal device and initiated by the DCD server.

Example 1:

A dynamic content transfer request is initiated by the terminal device, and the terminal storage space status information is reported to implement dynamic content transfer.

Referring to Figure 1, the specific steps include:

Step 1: The terminal device sends a Request message to the DCD server by using an HTTP or WAP protocol, requesting to send dynamic content, and carrying extended terminal capability information (extended UAProf or DPE), which includes terminal storage space state information;

Extended UAProf or Device Profile Evolution (DPE) is to add a <AvailableStorage> sub-element in the <HardwarePlatform> in the prior art UAProf, the structure of the extended UAProf or DPE and the location of the terminal storage space information. Described by the following bold black body statement:

<?xml version ^=/ l .0"?>

<rdf: Description rdf:Work D-"MyDeviceProf ile"〉

<prf: component >

<rdf: Description rdf:Work D HardwarePlatf orm〃>

<prf:work mageCapable rdf: datatype=〃&prf - dt,'Boolean">Yes</p:t:f:work mageCapable>

<prf: eyboard rdf: datatype="&prf - dt; Literal">PhoneKeypad</prf: eyboard>

<prf: umberOf Soft eys rdf: datatype="&prf- dt; um er">0</prf: umberOf Sof tKeys><prf :Avai lableStorage rdf :datatype="&pr f-dt; Number ">2MB</prf :Avai lableStorage> </rdf : Description>

</prf : component>

</rdf : Description>

</rdf : RDF> Step 2: After receiving the dynamic content sending request, the DCD server performs the following processing: First, the DCD server determines the available storage space size of the terminal device according to the terminal storage space state information carried in the request message;

The DCD server compares the available storage space size and the dynamic content size of the terminal device; when the available storage space of the terminal device is smaller than the dynamic content size, the dynamic content is personalized by adopting a processing method that reduces the dynamic content size; otherwise, directly to the dynamic Content is personalized; the way to reduce the size of dynamic content can be varied, for example:

(1) compressing the dynamic content, such as: compressing the image of 800*600 into 640*480, so as to reduce the amount of information stored in the dynamic content, so that the dynamic content after compression processing satisfies the available storage of the terminal device. size of space;

(2) The dynamic content is reduced, such as: the movie's title song and the ending song part are cut off, the multimedia content in the webpage is removed, the news item, the post-blog user comment section is removed, and the like;

(3) storing the dynamic content as a file of a different format, and selecting a corresponding file with the smallest number of bytes to be processed;

(4) Using a certain value as an input parameter of a personalized engine, the processing result of the personalized engine must meet the requirement that the processed file size is smaller than this value; in order to enable the content size of the personalized processing to be processed by the terminal device It can be stored in the storage space. The value ranges from less than or equal to the available storage space of the terminal.

The above four processing methods can be used alone or in combination.

In a specific implementation process, corresponding one or more processing manners may be preset and stored in the DCD server according to different dynamic content types. When dynamic content needs to be processed, according to the dynamic content type, the corresponding processing method is used for processing. For example: When the dynamic content type is an image file, the above processing method (1) and processing method (3) can be selected, the image is first compressed, and then the compressed image is stored as occupying a small storage space. Jpg file format Wait.

Step 3: The DCD server sends the personalized dynamic content to the requested terminal device by using a response message.

If the dynamic content size processed by the above various processing methods is still larger than the available storage space of the terminal, the DCD server may delay or cancel sending the dynamic content to the terminal device.

In the specific implementation process, the delay time may be preset in the DCD server; in the delay duration, the DCD server period acquires the available storage space of the terminal device, and when it is determined that the available storage space of the terminal device is greater than or equal to the processed dynamic content, The dynamic content is sent to the terminal device immediately after the delay is reached. After the delay time is reached, the available storage space of the terminal device is still smaller than the processed dynamic content size, and the dynamic content is cancelled and sent to the terminal device.

In addition, for some immediacy dynamic content, such as stock information, if the dynamic content cannot be sent to the terminal device at present, the transmission is canceled directly.

Example 2:

When the terminal device initiates the dynamic content delivery request, the terminal does not carry the terminal storage space state information, and the DCD server obtains the terminal storage space state information from the terminal device to implement dynamic content transmission.

Referring to Figure 2, the specific steps include:

Step 1: The terminal device sends a Request message to the DCD server to request to send dynamic content. The Request message sent does not include the terminal storage space status information.

Step 2: After receiving the dynamic content sending request, the DCD server sends an inquiry message to the terminal through the short message service (Short Message Service, SMS) or push (PUSH) manner, requesting to obtain the storage space state information of the terminal;

Step 3: The terminal sends a response message to the server through the SMS, and reports the storage state information of the terminal in the response message.

The inquiry/response message can use the Session Initiation Protocol (Session Initiated Protocol,

SIP) The binding of the option (OPTIONS), the following is a specific example of the query message:

OPTIONS DPE: <destinationURI> SIP/2.0

Via: ... Max-Forwards: 70

To: <destinationURI>

From: <SourceURI>;tag= 1928301774

Call-ID: a84b4c76e66710

CSeq: 63104 OPTIONS

Contact: <contactURI>

DPEEIementDescription/component/HardwarePlatform/AvailableStorage

Content-Length: 0

The following is a specific example of a response message:

SIP/2.0 200 OK

Via:...

To: <destinationURI>;tag=93810874

From: <SourceURI>;tag=l 928301774

Call-ID: a84b4c76e66710

CSeq: 63104 OPTIONS

Contact: <contactURI>

Content-Type: application/DPE

Content-Length: ...

<?xml version="l . 0"?>

<rdf: Description rdf: ID="MyDeviceProf ile">

<prf: components

<rdf: Description rdf: ID="HardwarePlatf orm">

<prf:AvailableStorage rdf:datatype="&prf-dt;Number">2MB</prf:AvailableStorage>

</rdf: Description

</prf: components

</rdf: Description>

</rdf : RDF>

Therefore, it is necessary to support the DPEElement header field (such as the above-mentioned thick black statement) in the SIP OPTIONS message, the semantics of which is to specify the elements in the DPE file that must be included in the response message. ( element ); Need to register a new Multipurpose Internet Mail Extensions (MIME) of type application/DPE; carry DPE content in the SIP response.

MIME It is an e-mail specification that is widely used today. The basic content is defined in RFC 2045-2049. In MIME, different content types are registered with a name, so that the content receiver knows the specific type of multimedia content received. The above response message includes: Content-Type: application/DPE; indicates that the content carried in the message is a DPE content.

Step 4: After receiving the response message, the DCD server determines the available storage space of the terminal device according to the storage space state information carried in the response message; the processing described later is the same as step 2 in the process of Figure 1, and is not repeated.

Step 5: Step 3 in the same process as Figure 1 is not repeated.

Example 3:

A dynamic content delivery request is initiated by the terminal device, and the DCD server obtains terminal storage space status information from the DPE server to implement dynamic content delivery.

Referring to FIG. 3, the DCD server may obtain the terminal storage space status information of the terminal device from the external entity. The following takes the DCD server as the example of obtaining the terminal storage space status information from the DPE server.

The DPE server is connected to the terminal device and communicates with the terminal device in real time to obtain the dynamic capability information of the terminal device. When the dynamic capability of the terminal device changes, the DPE server updates the dynamic capability information of the terminal device stored locally.

The specific signaling process includes:

Step 2: After receiving the dynamic content sending request, the DCD server sends an inquiry message to the DPE server terminal, requesting to acquire the storage space state information of the terminal, and carrying the identifier information of the terminal in the inquiry message;

The DCD server can also send a subscription message to the DPE server with a terminal identifier in the message; for example, the RFC3265 subscription/notification mode is adopted.

Step 3: After receiving the inquiry message, the DPE server sends a response message to the DCD server. The terminal capability information is included in the response message, and the terminal storage space status information is included; if the DPE server receives the subscription message sent by the DCD server, the DPE server sends a notification message to the DCD server, and reports the terminal capability information, including the terminal, in the notification message. Storage space status information.

Extend the subscription ( SUBSCRIBE ) / notification ( NOTIFY ) message in SIP to support DPE. Here is an example of a subscription message:

SUBSCRIBE DPE: <destinationURI> SIP/2.0

Via:...

Max-Forwards: 70

To: <destinationURI>

From: <SourceUT >;tag=l 928301774

Call-ID: ...

CSeq: ... NOTIFY

Contact: <contactURI>

DPEElementrDescription/component HardwarePlatform/AvailableStorage

Content-Length: 0

The following is an example of a notification message:

NOTIFY DPE: <destinationU I> SIP/2.0

Via:...

To: <destinationURI>;tag=93810874

From: <SourceURI>;tag=l 928301774

Call-ID: ...

CSeq:... NOTIFY

Contact: <contactURJ>

Content-Type: application DPE

Content-Length: ...

<?xml version="l . 0"?>

<rdf: Description rdf: ID="MyDeviceProf ile"> '<prf: components

<rdf: Description rdf: ID="HardwarePlatf orm">

<prf:AvailableStorage rdf:datatype="&prf-dt;Number">2MB</prf:AvailableStorage>

</rdf : Description>

</prf: component>

</rdf : Description>

</rdf : RDF> Therefore, the DPEElement header field needs to be supported in the SIP SUBSCRIBE message, the semantics of which is to specify the element in the DPE file that must be included in the response message; the new MIME type needs to be registered as application/DPE; The SIP NOTIFY message carries the DPE content.

Step 4: After receiving the response message/notification message, the DCD server determines the available storage space of the terminal device according to the available storage space state information carried in the response message/notification message; the processing described later and step 2 in the process of FIG. Same, not repeated.

Step 5. Same as step 3 in the flow of Figure 1, not repeated.

Example 4:

The dynamic content transmission is initiated by the DCD server, and the terminal device is first inquired about the storage state information of the terminal, and the dynamic content is processed according to the available storage space of the terminal device, and then the dynamic content is sent.

Referring to Figure 4, the specific steps include:

Step 1. The DCD server sends an inquiry message to the terminal device, requesting to acquire terminal storage space state information of the terminal device.

Step 2: The terminal device returns a response message, and carries the storage space state information of the terminal;

Step 3: After receiving the response message, the DCD server determines the available storage space of the terminal device according to the available storage space state information carried in the response message; the processing described later is the same as step 2 in the process of Figure 1, and is not repeated.

Step 4. Same as step 3 in the flow of Figure 1, not repeated.

Example 5

Dynamic content delivery initiated by the DCD server, asking the DPE server for terminal storage space ^ , , , , „ ^ _ . _{( l} , _% _ , , , , , . . , , . , 态信恩, according to the size of the available storage space between the terminal devices, after the dynamic internal answer processing, .

Referring to Figure 5, the specific steps include:

Step 1: The DCD server sends an inquiry message to the DPE server, requesting to acquire the storage state information of the terminal, and carrying the identification information of the terminal in the inquiry message;

Step 2: After receiving the inquiry message, the DPE server sends a response message to the DCD server, and reports the terminal capability information, where the terminal storage space status information is included in the response message;

If the DPE server receives the subscription message sent by the DCD server, it sends a notification message to the DCD server, and reports the terminal capability information, which includes the terminal storage space status information, in the notification message.

Step 3: After receiving the response message/notification message, the DCD server determines the available storage space of the terminal device according to the storage space state information carried in the response message/notification message; the processing described later is the same as step 2 in the process of FIG. , do not repeat.

Step 4. Same as step 3 in the flow of Figure 1, not repeated.

According to the dynamic content delivery method provided by the embodiment of the present invention, the present invention provides an embodiment of a dynamic content delivery server, and a schematic structural diagram thereof is shown in FIG.

The content sending module is configured to send the processed dynamic content to the terminal device.

According to the dynamic content delivery method provided by the embodiment of the present invention, the present invention further provides an embodiment of a dynamic content delivery system, and a schematic structural diagram thereof is shown in FIG. 7, including a dynamic content delivery server and Terminal Equipment;

The dynamic content delivery server is configured to acquire the available storage space size of the terminal device that receives the dynamic content; and process the dynamic content sent to the terminal device according to the available storage space size of the terminal device, and process the processed dynamic content. Send to the terminal device.

The dynamic content delivery system further includes a DPF server, where the DPF server stores terminal device dynamic capability information, and is configured to receive an inquiry message sent by the dynamic content delivery server, where the inquiry message carries the terminal device identifier; and returns to the dynamic content delivery server. a response message including terminal storage space status information; the dynamic content delivery server determines, according to the terminal storage space status information, the available storage space size of the terminal device that receives the dynamic content.

The terminal device may send a request message for acquiring dynamic content to the dynamic content delivery server, and carry the storage space state information; the dynamic content delivery server determines the available state of the terminal device according to the terminal storage space state information carried in the request message. The size of the storage space.

In summary, in the embodiment of the present invention, the DCD server first knows the storage space state information of the terminal before personalizing the dynamic content, and compresses and reduces the content to be sent according to the available storage space of the terminal device. The processing such as replacement enables the personalized dynamic content to be stored by the terminal device and then sent to the terminal device; when the personalized dynamic content size is greater than the available storage space of the terminal device, delay or cancel the transmission. This avoids the problem of content transmission failure due to insufficient storage space of the terminal, and saves network bandwidth resources and computing and storage resources of the server and the client.

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of the inventions

Claims

Rights request

A dynamic content delivery method, comprising:

Obtain the available storage space of the terminal device;

2. The dynamic content delivery method according to claim 1, wherein the obtaining the available storage space size of the terminal device comprises:

Receiving a request message for acquiring dynamic content initiated by the terminal device, where the request message carries terminal storage space state information of the terminal device;

And determining, according to the storage state information of the terminal, the available storage space of the terminal device.

The dynamic content delivery method according to claim 1, wherein the obtaining the available storage space size of the terminal device comprises:

Sending an inquiry message to the terminal device, requesting to acquire terminal storage space state information of the terminal device; receiving a response message returned by the terminal device, and carrying the terminal storage space state information of the terminal device in the response message;

The dynamic content transmission method according to claim 1, wherein the obtaining the available storage space size of the terminal device comprises:

Sending an inquiry message to the DPE server, where the inquiry message carries a terminal device identifier, and the DPE server stores the terminal device dynamic capability information;

Receiving a response message returned by the DPE server, where the response message includes terminal storage space status information;

And determining, according to the terminal storage space state information, a size of an available storage space of the terminal device. WO 2007/107064 , , , , , , , , , , , PCT/CN2006/003706 ,

The dynamic internal answering and transmitting method according to any one of claims 1 to 4, characterized in that, when the available storage space of the terminal device is smaller than the dynamic content size, the dynamic content is personalized, and The processed dynamic content is sent to the terminal device.

The dynamic content delivery method according to claim 5, wherein the personalizing the dynamic content comprises:

Compress dynamic content; or

Reduce the dynamic content; or

In the different storage format files of the dynamic content, select the corresponding file with the smallest number of bytes to be processed; or

A value less than or equal to the available storage space of the terminal device is used as a personalized engine input parameter, and the file size required for the personalized processing is less than the value.

The dynamic content delivery method according to claim 6, wherein a processing manner corresponding to different types of dynamic content is preset; the personalized processing of the dynamic content is: according to a dynamic content type, corresponding The processing method personalizes the dynamic content.

The dynamic content delivery method according to claim 5, wherein the method further comprises: delaying or canceling sending the dynamic content to the terminal device if the processed dynamic content size is greater than a available storage space of the terminal; .

The dynamic content transmission method according to claim 8, wherein the delay duration is set in advance; and the available storage space of the terminal device is greater than or equal to the processed dynamic content size within the delay duration, after the processing The dynamic content is sent to the terminal device.

10. A dynamic content delivery server, comprising:

a second processing module, configured to compare a storage space size of the terminal device and a dynamic content size to be sent to the terminal device, and process the dynamic content sent to the terminal device when the available storage space of the terminal device is smaller than the dynamic content size; Transfer processed dynamic content to content delivery Module

A dynamic content delivery system, comprising: a dynamic content delivery server and a terminal device;

The dynamic content delivery server is configured to acquire a size of an available storage space of the terminal device that receives the dynamic content; and process the dynamic content sent to the terminal device according to the available storage space size of the terminal device, and process the processed content. Dynamic content is sent to the terminal device.

12. The dynamic content delivery system of claim 11, further comprising: a DPF server;

The DPF server stores the terminal device dynamic capability information, and is configured to receive an inquiry message sent by the dynamic content delivery server, where the inquiry message carries the terminal device identifier; and returns a response of the packet terminal storage space state information to the dynamic content delivery server. Message

The dynamic content delivery server determines the available storage space size of the terminal device receiving the dynamic content according to the terminal storage space state information.

The dynamic content delivery system according to claim 11, wherein the terminal device sends a request message for acquiring dynamic content to the dynamic content delivery server, and carries storage space state information;

The dynamic content delivery server determines the available storage space size of the terminal device according to the terminal storage space status information carried in the request message. '