CN1859610A - Method for transfering multimedia message content adaptive notice - Google Patents

Abstract

The invention discloses a method for transmitting multimedia message content adaptation notification. The method transmits the multimedia message sent by the sending end to the receiving side multimedia message center, and the receiving side multimedia message center directly transmits the multimedia message according to the capability information of the receiving end. Send to the receiving end, or send to the receiving end after performing content adaptation processing on the multimedia message; wherein, when the multimedia message center on the receiving side sends the adapted multimedia message, the content adaptation notification is carried in the transmission signaling The receiving end determines, according to the content adaptation notification, that the content of the multimedia message has been adapted.

Description

A method for transmitting multimedia message content adaptation notification

technical field

The invention relates to multimedia message technology in the communication field, in particular to a method for transmitting multimedia message content adaptation notification.

Background technique

In the message receiving process of the multimedia message system (Multimedia service system-MMS), the receiving party's multimedia message center (MMS proxy-Relay) receives the receiving party's MMS client (Client) The receiver MMSproxy-Relay should carry out terminal capability negotiation and content adaptation according to the information of the receiver's MMS terminal capabilities, adjust those multimedia messages containing media types and formats that the receiver's MMS terminal does not support, and then send The receiver MMS terminal sends the MM multimedia message, and the adjustment may include deleting or modifying unsupported media types and formats.

MMS terminal capability information shall include:

(1), the largest supported MM multimedia message;

(2), the maximum image resolution supported;

(3), a list of supported media types and formats (for example, MIME types);

(4) List of supported character sets;

(5) List of supported preferred languages;

(6) The maximum color depth supported.

When the current MMS protocol (OMA 3GPP 3GPP2) sends the content-adapted MM to the receiver, it either does not notify the receiver that the content has been adapted, or inserts the content adaptation notification into a certain part of the MM. The element is sent to the user together with MM.

If the message whose content has been adapted is not sent to the user, it will bring a bad service experience to the user. Inserting the content adaptation notification into the MM element may affect and destroy the original MM representation, and increase the complexity of MMS proxy-Relay processing; in addition, when the MM is forwarded, MMSproxy-Relay cannot know the need Delete the notification information used to notify that the content has been adapted, which may mislead the next recipient, especially when the terminal of the next recipient has a strong ability to support multimedia messages, which will seriously affect the user's Experience the effect.

Contents of the invention

The present invention provides a method for transmitting multimedia message content adaptation notification to solve the problems in the prior art that carrying the content adaptation notification in the multimedia message content may affect the MM expression form and the user's experience effect on the multimedia message.

In order to solve the above problems, the present invention provides the following technical solutions:

A method for transmitting multimedia message content adaptation notification, the method transmits the multimedia message sent by the sending end to the receiving side multimedia message center, and the receiving side multimedia message center directly sends the multimedia message to the receiving end according to the capability information of the receiving end , or perform content adaptation processing on the multimedia message and then send it to the receiving end; wherein, when the multimedia message center on the receiving side sends the adapted multimedia message, the content adaptation notification is carried in the transmission signaling, and the receiving end according to The content adaptation notification determines that the content of the multimedia message has been adapted.

When the receiving end submits and forwards the received multimedia message, the content adaptation notification is no longer carried in the submitting and forwarding signaling.

The transmission command is the multimedia message acquisition response signaling in the multimedia message system interface protocol.

Whether the content of the multimedia message has been adapted is identified by extending the value of a field in the multimedia message acquisition response signaling.

A field is added to the multimedia message acquisition response signaling to identify whether the content of the multimedia message has been adapted.

The present invention has the following beneficial effects:

1. By carrying the notification information that the content has been adapted in the transmission command of the multimedia message, it can ensure that the receiving end knows that the multimedia message received due to the limitation of the terminal capability has been processed without affecting the expression form of the multimedia message. adaptation.

2. When the receiving end submits the multimedia message to the receiving party's multimedia message center, and then forwards the message to other receiving ends, the multimedia message center will not send out the content adaptation notification that has previously been adapted to the content, so that Avoid misunderstandings and give users a better experience.

3. Since the identification is only added in the transmission signaling as the content adaptation notification, the processing of the multimedia message center is simpler.

Description of drawings

Fig. 1 is the structural representation of multimedia messaging system;

Fig. 2 is a flowchart of the present invention.

Detailed ways

Referring to Fig. 1, the multimedia messaging system (MMS) interface protocol adopts the existing OMA 3GPP (3GPP2) protocol. The multimedia message sent by the MMS client is forwarded by the multimedia message to the target MMS client through the command message. The sending end and the receiving end may belong to the same multimedia message center, or may belong to different multimedia message centers (MMS proxy-Relay). When the sending end and the receiving end belong to different multimedia message centers, the multimedia message needs to be forwarded between the two multimedia message centers, and then the multimedia message center where the receiving end is located transmits the multimedia message to the receiving end.

In the present invention, after the multimedia message center on the receiving side adapts the content of the multimedia message according to the capability information of the receiving end, a content adaptation notification indicating that the content of the message has been adapted is carried through the transmission command, that is, the content of the multimedia message is not carried in the content of the multimedia message. notification information.

The content adaptation notification carried by the transmission command can be implemented in the following two ways:

1. The value of the existing field element in the extension command

Extend the value of the existing field element Retrieve-status-value: its structure is as follows:

X-Mms-Retrieve-Status field

Retrieve-status-value=Ok|

Error-transient-failure|

Error-transient-message-not-found|

Error-transient-network-problem|

Error-permanent-failure|

Error-permanent-service-denied|

Error-permanent-message-not-found|

Error-permanent-content-unsupported|

Content-adaption (indicates that the content has been adapted)

If the field element does not have the value Content-adaption, it means that the content is not adapted.

2. Add a new field element to the command

Retrieve-status-value and its value are described as follows:

X-Mms-content-adaption-status field

content-adaption-status-value=No|(no content matching)

Yes (Content matching has been performed)

Referring to Fig. 2, the multimedia message center on the receiving side uses the extended signaling field X-Mms-Retrieve-Status to identify that the MM has performed content adaptation processing in the transmission signaling M-retrieve.ind as follows:

Step 1: The sender's MMS client sends a multimedia message (MM) to the sender's multimedia message center (Orig MMS Proxy Relay).

Step 2: The multimedia message center of the sender interacts with the multimedia message center (target MMSProxy Relay) of the receiver, and forwards the multimedia message to the multimedia message center of the receiver.

Step 3: The multimedia message center of the receiver sends a notification message M-notification.ind to the MMS client of the receiver, and there is a new multimedia message sent to it.

Step 4: The receiver's MMS client responds to the notification message.

Step 5: The MMS client of the receiver sends a multimedia message retrieval request M-Retrieve.Req to the multimedia message center of the receiver. In the parameters of the message, carry the parameters describing the terminal capabilities, such as the maximum supported MM multimedia message, the maximum supported image analysis, the list of supported media types and formats (for example, MIME type), and the list of supported character sets , the list of preferred languages supported, the maximum color depth supported, etc.

Step 6: The receiver's multimedia message center (target MMS Proxy Relay) analyzes whether the capability of the receiving end can meet the needs of describing the multimedia message, if not, perform content adaptation processing, and obtain confirmation signaling M-Retrieve in the multimedia. Add the field value Content-adaption to the field X-Mms-Retrieve-Status in conf to indicate that the content has been adapted and sent to the receiving end.

Step 7: After receiving the signaling message, the receiving end obtains the field value Content-adaption from the field X-Mms-Retrieve-Status in the transmission signaling M-Retrieve.conf, and knows that the multimedia message has undergone content adaptation.

Steps 8 and 9: The sending end, the multimedia message center where the sending end is located, and the multimedia message center where the receiving end is located perform signaling interaction to complete the transmission confirmation of the multimedia message (the same processing as in the prior art).

Step 10: The receiving end submits the multimedia message to the receiving party's multimedia message center, and the indication that the content of the multimedia message has been adapted is no longer carried in the submission and forwarding signaling.

Step 11: The multimedia message center forwards the multimedia message to another MMS client in a normal processing manner. If no adaptation has been performed on the multimedia message during this forwarding process, the transmission signaling received by the other MMS client does not contain the indication that the content has been adapted.

For the implementation of adding a new field element in the command to identify that the content of the multimedia message has been adapted, in the above step 6, when the multimedia message center where the receiver is located sends the adapted MM to the receiving end through M-retrieve.ind, Set the field value of the extended signaling field X-Mms-content-adaption-status to "true" (or "false" if not adapted), indicating that the MM has performed content adaptation. In step 7, According to this value, the receiver knows that the content of the multimedia message has been adapted. Other processing steps are the same as those in Fig. 2 and description.

The present invention utilizes the transmission signaling between the MMS client and the multimedia message center to notify the recipient that the user content has been adapted, thus avoiding the insertion of the content adaptation notification into the MM element when forwarding the multimedia message in the prior art However, it may affect and destroy the original MM expression form, and submit the content adaptation notification to the receiver's multimedia message center, and then forward it to other receivers.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (5)

1, a kind of method that transmits multimedia message content adaptive notice, this method is sent to receiver side Multimedia Message center with the Multimedia Message that transmitting terminal sends, this receiver side Multimedia Message center directly sends to receiving terminal with described Multimedia Message according to the ability information of receiving terminal, perhaps described Multimedia Message is carried out sending to receiving terminal after content adaptation is handled; It is characterized in that carry content adaptive notice when described receiver side Multimedia Message center sends Multimedia Message after the adaptation processing in transmitting signaling, receiving terminal determines that according to this content adaptive notice described multimedia information content is by adaptation processing.

2, the method for claim 1 is characterized in that, described receiving terminal no longer carries content adaptive notice in submitting transmitting signaling to when the described Multimedia Message of submitting to forwarding to receive.

3, method as claimed in claim 1 or 2 is characterized in that, described transmission order is that the Multimedia Message in the multi-media messaging system interface protocol obtains response signaling.

4, method as claimed in claim 3 is characterized in that, whether obtains the value identification of multimedia message content of a field in the response signaling by adaptation processing by expanding described Multimedia Message.

5, method as claimed in claim 3 is characterized in that, whether obtain in the response signaling at described Multimedia Message increases a field and come the identification of multimedia message content by adaptation processing.

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