CN1795657A - Multimedia message processing - Google Patents

Abstract

An originating network, such as an originating wireless communication network, selectively performs multimedia content transcoding of outgoing multimedia messages as a function of the corresponding destination network addresses. More particular, in an exemplary embodiment, the originating network includes or has access to one or more databases that are accessed to determine whether transcoding is desired. Such information may comprise a listing of destination addresses, e.g., email addresses, or particular domain identifiers, for which transcoding is desired. Moreover, such information can indicate whether default or specific transcoding formats should be used. With this approach, the originating network can transcode all, or selected multimedia content, e.g., audio, video, etc., into one or more coding formats that known or expected to be compatible with the coding formats used by the targeted destination networks.

Description

Multimedia Message is handled

Related application

The application requires the priority of the U.S. Provisional Application sequence number 60/457,449 of submission on March 25th, 2003 under 35U.S.C. § 119 (e) clause.This application is introduced by reference in full significantly.

Background

Present invention relates in general to send the communication network that the territory receives Multimedia Message, and relate in particular to according to the media formats processing Multimedia Message of expecting.

The Internet user sends an email to the system and the equipment of the networking in the whole world routinely.Simple Mail Transfer protocol (SMTP) generally is used to format such message and this agreement makes such message can carry various annexes, comprises the Multimedia Attachments that contains image, audio/video clips etc.And, use standardized transmission and packet oriented protocol, that is, TCP (TCP/IP) allows the network of fundamental difference type and establishes each to send such message via the internet.

For example, a lot of cordless communication networks directly or indirectly are coupled to the internet, thereby and allow the wireless device of their user from suitable configuration, for example the wireless communication terminal as cellular radio, portable digital-assistant, beep-pager etc. sends and receiving block data via the internet.User outside these networks can send Email or other comprise that the type of message of content of multimedia is delivered to targeted customer's terminal, perhaps the user can produce inside or the outside that such message is delivered to the wireless network that they support.

Several cordless communication networks, for example based on the global system that is used for mobile communication (GSM) standard, the network of cdma2000 standard or other standard comprises sending Multimedia Message to subscriber equipment with from the support of subscriber equipment reception Multimedia Message.A kind of network of general radio communication service provider comprises the entity of one or more support Multimedia Messages services (MMS).Such entity generally comprises one or more MMS center (MMS-Cs), and they send MMS message and transmit or be delivered to another network in identical network, and reception MMS message is delivered to the user terminal in the network.

In order to replenish the content of multimedia transmission of this network, can encode or handle with a kind of native format of this network type in addition some or all content of multimedia in those message.For example, GSM standard appointment adaptive multi-rate (AMR) acoustic coding is " this locality " audio coding form of GSM.Therefore, the GSM terminal that produces the MMS message with audio content is generally encoded to such content encoding with AMR.Similarly, the cdma2000 standard has been specified a kind of local acoustic coding form, and it is used when producing the multimedia audio content by the cdma2000 terminal.

But cdma2000 native format (code-excited linear prediction or CELP) is incompatible with the GSM native format.Therefore, incompatible for the multimedia audio content and the cdma2000 network of GSM native formatization, vice versa.Certainly, in the MMS context, also there is other incompatibility.For example, content of multimedia from the source outside the given wireless network, the non-native format content that for example can comprise any amount from the content of multimedia of whole internet input, form (WINDOWS) media audio (WMA) for example, REAL audio frequency (RA) or other form.

In a word, to being delivered to and presenting many challenges by dissimilar wireless networks from the content of multimedia open wireless communication network of the source of fundamental difference input or the MMS message that produces one type wireless network.Particularly, must pay close attention to the media content compatibility of the Multimedia Message service between the possibility different type network.

General introduction

The present invention includes a kind of method and apparatus that is used to handle from the Multimedia Message of originating terminal network output.A kind of given message can with output message in the destination network of coded format compatibility of content of multimedia as target, not needing this content " transcode " in this case is another kind of coded format.But, destination network may not be compatible, for example QCELP audio content handle is delivered to a GSM network user as target in the Multimedia Message, and in this case, the originating terminal network of example is configured being the form of destination network appointment with incompatible content transcode.Additional or alternatively, example originating terminal network can be configured to carry out the form of transcode for some destination-address acquiescence, for example, transcode is for extensively being used in the form in the multimedia transmission, for example WINDOWS media audio form.

Thereby, processing comprises that from the exemplary method of the Multimedia Message of originating terminal network output the content of multimedia that optionally will export the Multimedia Message is a kind of default form as the function of their destination network addresses from the current format transcode, and according to destination network address transmission message.The originating terminal network can comprise a cordless communication network that uses one or more local media coded formats, and it is an e-mail address for Internet in response to the targets of messages of for example identification output optionally, and transcode is one or more default forms.

In order to replenish above embodiment, a kind of be used to handle from the Multimedia Message center of the example of the Multimedia Message of originating terminal network output comprise a server, it is configured being a default form of function as their destination network address with the content of multimedia in the Multimedia Message of output from the current format transcode optionally, and sends message according to their destination network address.The Multimedia Message center can comprise a MMS Relay/Server (MMS-C) in the originating terminal cordless communication network.

In another example embodiment, a kind of multimedia message processing method of example comprises the destination-address information that is used to export Multimedia Message from first entity to the transmission of second entity, receive the corresponding corresponding indication of whether wanting the content of multimedia transcode about this message at first entity from second entity,, and send this message from first entity and be delivered to destination-address in the conversion of first entity selection ground run time version based on this indication.Such embodiment can by a Multimedia Message center in the originating terminal network is communicatively coupled to one such as be configured to determine whether should run time version data converted storehouse server support entity realize that this support entity may be in or be not in the originating terminal network.

In order to replenish above method, one is used to handle from the Multimedia Message center of the example of the Multimedia Message of originating terminal network output and comprises a multimedia server, it be configured be used to export Multimedia Message with transmission destination-address information to database server, and receive whether want to carry out the indication of multimedia content transcoding about message from what database server returned.Multimedia server can comprise that one is configured with first circuit of indicating the conversion of run time version optionally based on this and is configured to send the second circuit that this message is delivered to destination-address.

In another example embodiment, a kind of handle comprises from the method for the Multimedia Message of originating terminal network output the output Multimedia Message is transferred to second entity from first entity, after second entity makes this message be subjected to selectivity transcode to the content of multimedia in the message, on first entity, receive the message of returning from second entity, and send this message from first entity and be delivered to destination-address.Thereby, use this configuration, may be in or be not in second entity that comprises in the originating terminal network provides optionally code conversion to handle for the Multimedia Message from the output of originating terminal network.

In order to replenish above method, a kind of be used to handle from the Multimedia Message center of the example of the Multimedia Message of originating terminal network output comprise a multimedia server, it is configured with the Multimedia Message with output and is transferred to transcoding system, and make this message be subjected to the selectivity transcode of the content of multimedia in this message is received the message of returning, and will send to be delivered to destination-address from the message of first entity at transcoding system.Transcoding system thereby provide the support entity of code conversion service to output message as one, and it can be included in the originating terminal network, and perhaps it can be in the originating terminal network-external.

Certainly, above information is not limitation of the present invention.Supplementary features and advantage are described in detailed description subsequently and explanation in the accompanying drawings.Those skilled in the art have browsed the information here also will recognize additional features and advantage.

The accompanying drawing summary

Fig. 1 is configured to initiate Multimedia Message so that be delivered to the figure of the example network of one or more destination networks according to one or more embodiment of the present invention;

Fig. 2 is the figure of example process logic that is used to realize the Multimedia Message code conversion according to one or more embodiment of the present invention;

Fig. 3 is another figure of example process logic that is used to realize the Multimedia Message code conversion according to one or more embodiment of the present invention;

Fig. 4 is another figure of example process logic that is used to realize the Multimedia Message code conversion according to one or more embodiment of the present invention;

Fig. 5 is another figure of example process logic that is used to realize the Multimedia Message code conversion according to one or more embodiment of the present invention.

Describe in detail

Fig. 1 is that limit is configured to initiate Multimedia Message so that be delivered to the figure of the example network 10 of one or more destination networks according to one or more embodiment of the present invention.Network 10 can for example comprise cordless communication network, for example the cordless communication network that disposes according to global system for mobile communications (GSM) standard, Wideband Code Division Multiple Access (WCDMA) (W-CDMA) standard, cdma2000 standard etc.

Network 10 comprises a Multimedia Message center 12, and itself can comprise a multimedia relaying 14 and a multimedia server 16.The server 16 of an example generally comprises circuit that support to handle Multimedia Message, for example is configured to send the output Multimedia Message so that be delivered to one or more circuit of network corresponding to their destination network address.And example server 16 comprises a code conversion circuit or system 18, and it is configured to support the optionally code conversion of the content of multimedia in the output message.As making an explanation in the back, transcoding system 18 can be cooperated with a support entity 20, whether support entity can be wanted to carry out the transcode database server of code conversion or be used as a complete transcoding system (as system 18) that receives output messages from server 16 for given message as indication, optionally to they transcodes, and they are turned back to server 16 be used for they are sent so that be delivered to destination-address.

Thereby, managed network 10 customized configurations are not how, the network 10 main Multimedia Messages that send output, the message of initiating from a mobile radio station 22 for example is so that be delivered to target recipient with one or more destination network communicative couplings such as public data network (PDN) 26 and/or other cordless communication network 24.PDN24 can comprise for example whole internet, and other wireless network 26 can comprise the network of other wireless carrier, i.e. other wireless network domains, and such network can based on or not based on the wireless communication standard identical with network 10.

After understanding above content, although may notice that the present invention has widely uses, the specific criteria file has in the context that helps to pay close attention to cordless communication network the reader about the additional detail of MMS.For example, the MMS standardization that third generation partnership project (3GPP) is started, and first version that requires like this can find from following file: Multimedia Message service: service aspect; In the stage 1,1999 versions of third generation partnership project TS 22.140 can obtain from www.3gpp.org/ftp/Specs; With the Multimedia Message service: functional description; In the stage 2,1999 versions of third generation partnership project TS 23.140 can obtain from www.3gpp.org/ftp/Specs.

Third generation partnership project 2 (3GPP2) has also been set up one group of standard at MMS, and these standards define in following file: 3GPP2 MMS specification overview, multi-media messaging system standard (X.S0016-000); The MMS stage 2, function declaration (X.S0016-200); Use the MM1 stage 3 (X.S0016-310) of OMA/WAP; MMS MM4 stages 3 intercarrier interactions (X.S0016-340); MMS MM7 VASP interacts and stages 3 standards (X.S0016-370).The MMS standard of cdma2000 is also described in the following file from telecommunications industry federation (TIA): 3GPP2 MMS specification overview, multi-media messaging system standard (TIA-934-000); The MMS stage 2, function declaration (TIA-934-200); Use the MMSMM1 stage 3 (TIA-934-310) of OMA/WAP; MMS MM4 stages 3 intercarrier interacts (TIA-934-340) and MMS MM7 VASP interacts stages 3 standards (TIA-934-370).Multimedia form and codec are described at 3GPP TS 26.140 that is used for GSM and the C.S0045 that is used for cdma 2000.

In wireless context, MMS is from Short Message Service (SMS) system development based on literal, but has been to use wireless application protocol (wap).Those skilled in the art will recognize that WAP allows mobile device to communicate by letter with Internet server via the mobile radio communication network such as network 10 as a kind of agreement.Because general mobile device display (general 150 * 150 pixels) is (more general than computer monitor display, at least 640 * 480 pixels) much smaller, one is designed to can not practicably show on mobile device usually at the website that shows on the computer monitor.Mobile device also has usually compares less a lot of disposal abilities with personal computer.

Therefore, developed WAP and inserted the specific internet site that is designed to be presented on the mobile device, and an interface between mobile device and the internet is provided to allow mobile device.The user that can carry out the mobile device of Wap can enter the Internet via mobile radio communication network and do shopping, and obtains stock quotation, obtains traffic and weather forecast etc.

MMS is the standard that sends and receive Multimedia Message.Multimedia Message can comprise the combination in any of formative text, image, photo, Voice ﹠ Video montage.Image can be according to the arbitrary standards form such as GIF and JPEG.MMS also supports such as the video format of MPEG4 with such as the audio format of MP3 and MIDI.The MMS specification description form of MMS message of " user agent " from the MMS Relay Server to mobile device (for example the processor during being included in portable terminal 22 move software), the pressure of this message instructs field and sequence to describe in detail in following file: Multimedia Message service: aspect the service; In the stage 1, third generation cooperative programme TS 22.140 edition 4s (V4.1.0) obtain from www.3gpp.org/ftp/Specs; With the Multimedia Message service: function declaration; In the stage 2, third generation cooperative programme TS 23.140 edition 4s (V4.2.0) can obtain from www.3gpp.org/ftp/Specs.

The general format of MMS message comprises for routing iinformation and the recipient of MMS message and sender's address, the i.e. header of originating terminal and destination-address information.And source body comprises multimedia information content, and it can comprise content of multimedia dissimilar or part.By nonrestrictive example, such content can comprise: according to one or more coding format (for example, picture material of JPEG) representing; Formative or plain text; Audio content according to one or more audio coding forms (for example, MP3, WAM, AMR etc.) expression; Video content according to one or more video code models (for example MPEG) expression; And, comprise " presenting file " that presents content of multimedia to (or a plurality of) target recipient of Multimedia Message alternatively.

The same with the content of multimedia of other type, the audio-frequency unit of MMS message can be with multiple form storage.Two kinds of main variations in the audio memory comprise with its sampling form stored audio content or with encoding file format stores it.More than two kinds of forms finally all represent to be used for the time dependent waveforms (or multiple waveform) that the regeneration audio frequency is exported.Consider restricted air interface bandwidth, for efficiency of transmission, wireless network is generally with the coded format transmission of audio.For example, typical wireless network speech coder (vocoder) comprises the AMR that is used for GSM/WCDMA, W-AMR and EVRC, the QCELP and the SMV that are used for cdma2000.

More particularly, 3GPP MMS has specified AMR according to 3GPP/TS26.071.Given GSM or WCDMA mobile radio station also can be configured to support according to 3GPP/TS26.171, the WB-AMR of ITU-TG722.2, and it is the more quality version of basic AMR vocoder.The universal phonetic encoder that is used for the conventional voice service of cdma2000 comprises EVRC (IS-127) and QCELP (IS-733).One is specified but still do not have the codec of configuration is SMV (IS-893).Minimize attaching terminal complexity this respect, using " this locality " vocoder of the given network of MMS to have superiority.But the synthetic form of the local sound of a network may be incompatible with the network of another kind of type, maybe can not obtain the network support of another kind of type.Although medium type " encoded voice " is one of most important difference in the medium type, other medium type also may be different, and this may cause incompatible.And although above example, also has other wireless and cable technology at GSM/WCDMA and cdma2000, this technology also can define the local MMS service of incompatible medium type.

Code conversion at least one example embodiment of the present invention comprises that the coded format with content of multimedia becomes one or more formats from current format.For example, the audio content of the AMR coding from the message that a GSM network is initiated can be the audio frequency that is converted to the CELP coding when being delivered to the cdma2000 network user in the target that identifies this message.On the contrary, purpose is that the audio content from the message of cdma2000 network output that is delivered to the GSM network user can be AMR from the CELP transcode.Certainly, also can use other coded format (MP3, WMA etc.), and such transcode can additionally or alternatively be applied to the message content of other type, for example video.

In any case because their possible large scales, MMS message is used special-purpose session usually or is connected and sends between network 10 and mobile radio station 22.For example, MMS message can send by the Dedicated Traffic Channel of setting up between network 10 and mobile radio station 22 (voice or data).Therefore those skilled in the art will recognize that in fact network shown in Figure 1 10 will comprise the additional entities of supporting air interface and intra network communication.Such entity can include but not limited to comprise the Radio Access Network (RAN) of wireless base station, controller etc. and can comprise MMS-C 12 or communicative couplings MMS-C 12 to the packet core network (PCN) of mobile radio station.

Because use SMS message, MMS message can relate to the specific recipient of mobile radio station ISDN (MSISDN) who uses the recipient.MSISDN provides about recipient's country code, the information of the code of the national goal ground code of an identification recipient's wireless carriers (territory) and identification recipient's wireless network attaching position register (HLR).Although the transcode of the present invention of detailed description does not have substantial connection with understanding here, those skilled in the art will recognize that each recipient HLR storage to the route Useful Information, for example the sign of recipient's current accessed location register (VLR) in " roaming " situation.

In any case, MMS message generally uses Simple Mail Transfer protocol (SMTP) to be routed to the recipient by the internet.In one or more embodiment of the present invention, MSISDN is submitted to an ENUM database, thereby it is for example discerned in this territory the target MMS server by the MSISDN based on a message acceptance person and discerns the wireless network carrier territory.In more detail, abbreviation ENUM refers to adopt a complete international telephone number and uses the structure based on domain name system (DNS) that it is resolved to internet engineering task group (IETF) agreement of a series of uniform resource locators (URL).A country code among the MSISDN can be used in an E.164 Number server that routes messages in that country.Each country can safeguard that one is routed to user's data storehouse in that country with MMS message.Thereby ENUM is provided for Mobile Subscriber International ISDN Number is converted to the mechanism of the URL address in domain name system (DNS) environment.

Therefore, the transcoding system 18 of server 16 can be configured to discern or recognize based on MISDN to ENUM database submitting (or a plurality of) target message recipient to the destination network address of output Multimedia Message, and this ENUM database comprises the table data that specific MSISDN is associated with the ad hoc wireless networks territory.Thereby, make it possible to determine whether carry out the code conversion of any or whole content of multimedia in the message as the identification of the wireless network domains of output message target, for example, can visit a carrier list, the wireless network domains of code conversion is wanted in its identification.And, any carrier list database also can specify content of multimedia should transcode to the specific coding form to be delivered to each ad hoc wireless networks territory.

Under technology that destination network is used and the situation different as the technology of originating terminal network of network 10 uses, MMS-C 12 can be programmed to discern which kind of particular technology and be associated with specific purpose zone network as the output message target.For example, ENUM is after MSISDN (or be used for based on the 3GPP2 technology MIDN) is transformed into one or more URL address, and the field of URL (territory) can import a look-up table, the type of skill that this look-up table is programmed and is associated with destination network with output.If URL indicates a kind of different technology and output message to comprise that MMS-C 12 can be converted to media type format the form that destination network is supported with the content of the incompatible coded format of a kind of known or supposition and destination network.

MMS-C 12 can be equipped with a particular network, and for example the form of other unsupported form in wireless carrier territory or tabulation and/or it can be equipped with and maybe can visit a database, one or more forms of this database identification specific purpose zone network expectation.Such format specification can comprise dissimilar content of multimedia, for example the form of appointment such as audio frequency, video.For example, hypothetical network 10 is that cdma2000 network and mobile radio station 22 send the Multimedia Message that the destination is the GSM network user.

Message receives in MMS-C 12, and the one or more databases of MMS-C 12 visits are based on the network of GSM with the target of determining this message.The then content in the MMS-C 12 inspection message, and the mime type that is especially comprised.If mime type represents that a unit in the message is current and is encoded according to any one local cdma2000 vocoder, the vocoder format (or (or a plurality of form) for listing especially used to gsm system of the such content of multimedia of MMS-C 12 code conversions then as the specific GSM network of this message destination.

Under more general situation, MMS-C 12 checks the form of all medium types in the output messages and their correspondences and uses database information to determine which kind of form need be changed and which kind of (or which) form this code conversion should be converted to.As back explanation in detail here, MMS-C 12 can carry out optionally transcode decision, and can the run time version conversion operations.But one of those functions or both can be unloaded to one or more support entities, and to providing this support entity in network 10 outsides by the third party.Under these circumstances, support entity can be via access to the Internet for MMS-C 12.

As mentioned above, can make a server based on ENUM be linked into server 16 (with any other server in the network 10), be the destination e-mail address with the MSISDN information translation in the Multimedia Message of supporting output.Certainly, based on the identification of the destination network address of the ENUM database of handling the recipient's mobile phone identifying information in the output message a kind of in several exemplary methods of expression just, with the independent code conversion whether wanting to carry out code conversion and want to carry out which kind of type of optionally determining on the basis the Multimedia Message that sends from MMS-C12 at.

In another example embodiment, server 16 storages maybe can be linked into the database that the network information is provided.A table like this will allow for example ISP's of wireless network user designated user (ISP) multimedia server address, rather than the address of the multimedia server in user's the wireless service provider.Thereby that Mobile Subscriber International ISDN Number that requires wireless service provider to upgrade the Relational database user points to the address of the MMS server that belongs to ISP.Not only the user's mobile phone service provider need make this renewal, and the also necessary internal database that upgrades them of all other MMS servers, thereby all MMS servers are all known the new routing address of user's ISP.

Obtain specific purpose zone network routing iinformation in any case, the MMS-C 12 of example comprises maybe can insert at least one database of supporting that optionally code conversion is determined.That is to say that MMS-C 12 comprises maybe can insert one or more databases, the basis that some or all of the content of multimedia that this database provides for server 16 to determine in the given output Multimedia Message whether should transcode.For example, in the ENUM conversion database of identification transcode action and form and/or the transcoding system 18 that the carrier list database can be included in server 16.Replacedly, some or all in this database function can realize in support entity 20 that it can be inserted by transcode system 18.Replacedly, a kind of or two transcoding systems 18 and support entity 20 can insert remote database server.Thereby MMS-C 12 can access information, thereby this making one's options property of information code conversion decision is sent to the designated destination network by MMS-C 1 with output message 2.

When checking this message transmit operation, want to send Multimedia Message with user and begin to the supposition of another mobile radio station to mobile radio station 22, describing a typical message route order may be helpful.Mobile radio station 22 sends MMS message to MMS-C 12 via being included in of supporting not illustrate or with the support Radio Access Network (RAN) that the part correlation connection is shown of network 10.Relaying 14 provides this message to server 16, and it uses SMPT to send this message according to the destination e-mail address by the internet.

Then, a reception server sends a Multimedia Message and notifies propelling movement access protocal (PAP) server in the destination network, and this server uses the WAP Forum standard message to be pushed to the propelling movement gateway that receives mobile device as one.The PAP server is notified reception mobile device 22 via one of the Radio Access Network transmission that receives in the network, and the reception mobile radio station is then hauled out MMS message from reception server 18.Thereby Multimedia Message receives in receiving mobile radio station, and this multimedia messages can present, plays or be shown to its user in this reception mobile radio station.

Certainly, the output Multimedia Message that is to be understood that the selectivity transcode according to the present invention is not to initiate from the mobile radio station that is associated with network 10.In fact, Virtual network operator may wish to send Multimedia Message, and for example, advertisement, information on services etc. are given one or more recipients.

After having known above content, forward accompanying drawing again to, Fig. 2 has illustrated the processing logic of example, and this logic can realize with hardware, software or their any combining form in server 16, be used to carry out the exemplary method that Multimedia Message is handled.The code conversion of server 16 is handled from having determined whether output Multimedia Message to be processed " " (step 100).

If proceed assessment (step 102) to the destination network address of message.If determine to be sent out and want the code conversion (step 104) given tacit consent to before being delivered to destination network in message, server 16 beginning or carry out default code conversion (step 106), wherein at least a portion of content of multimedia is that default code form and (code conversion) message are sent out then so that be delivered to destination network corresponding to message addresses information from present encoding format conversion code in the message.

If do not want the code conversion given tacit consent to, server 16 can be configured to the purpose of appraisals way address alternatively to determine whether should carry out specific code conversion (step 110) before sending this message.If want to carry out specific code conversion, then server 16 inserts the Local or Remote canned data, the coded format that should be used for the content of multimedia of output message is carried out transcode of this information indication special (specific), and server execution transcode is a specific format (step 112).

The assessment of destination-address can comprise that simple identification output message target is an e-mail address, and server 16 (or support entity 20) can be configured to suppose that generally wanting target is that e-mail address or target are that the output message of specific email address is carried out the default code conversion.Thereby, in example embodiment, it is to be delivered to an internet domain that server 16 can be configured in response to recognizing the output message purpose, for example be delivered to Internet server provider (ISP), for example the user of America Online (AOL), EARTHLINK, ROADRUNNER etc. carries out the code conversion of acquiescence.

In this context, server 16 (or support entity 20) can be configured to use one or more to be generally used for the coded format of the Internet-delivered of content of multimedia, for example WINDOWS media audio (WMA or .WAV) form, REAL audio frequency (.ra) form, advanced audio (AAC) form etc.The benefit of default code conversion from may being the originating terminal network local, but may not be to get in the widely used coded format conversion of the network-external of same type from the specific part of content of multimedia.

Example by means of indefiniteness, if network 10 is GSM networks, the audio-frequency unit of the content of multimedia in the output message is encoded according to the AMR coded format that is used for the wireless speech coding probably, and this form can not get extensive support in personal computer (PC) is used.Certainly, the content of other type (audio frequency etc.) may optionally be converted code, and the code conversion of acquiescence may trigger by a specific part to content of multimedia in the output message, perhaps different code conversions can trigger according to the different piece of destination network address to message, for example, video section to some addresses carries out transcode, and the audio-frequency unit of other address is carried out transcode.Notice that some or all of content of multimedia may transcode be to increase the possibility of ultimate recipient with the compatible format receiving multimedia content more than a kind of default form.

If realize optionally particular code conversion, server 16 can transcode or is begun such code conversion, according to being stored in the transcoding system 18 and/or the information in the support entity 20 of being stored in is carried out code conversion with some or all of content of multimedia and is one or more specific formats.For example, transcoding system 18 (or support entity 20) can comprise database or other tabulation of the particular code format transformation that an identification will be used specific purpose zone network address.By means of the example of indefiniteness, the specific code conversion of such form may be another cordless communication network based on the destination network address of identification particular message and search and will be used for (or a plurality of) specific format of output message code conversion to guarantee the compatibility with the target destination network.

Fig. 3 has illustrated the processing logic of example arrangement, and wherein the transcoding system 18 in the server 16 is cooperated to carry out the selectivity code conversion to the output Multimedia Message with support entity 20.Whether processing promptly has a message to send MMS-C 12 beginnings from determining whether to obtain an output Multimedia Message (step 120).If server 16 sends destination-address information to support entity 20 (step 122), it preferably is configured to a transcode database server in this case.

Server 16 can be from message content, for example obtains destination-address information from the header information of message or it can send information to support entity 20, thereby support entity 20 can be determined destination-address information.In one embodiment, server 16 can send this message itself provides the mechanism of destination-address information to support entity 20 to conduct database server simply.

Under any circumstance, whether support entity 20 application target way address information want code conversion with definite output message, and return the indication (step 124) in server 16 receptions of a correspondence.Server 16 is in response to optionally run time version conversion (step 126) of the indication of returning.That is to say, if indicated code conversion, the transcoding system 18 of server 16 is the coded format (step 128) of one or more appointments and/or acquiescence with at least a portion transcode of the content of multimedia in the output message, and sends this message to transmit (step 130) according to the destination network address.If do not indicate code conversion, server 16 sends output message (step 130) simply.

Notice that support entity 20 not only can return an indication of wanting still not want code conversion, and can return and return this indication identification expectation that combines and specify the still information of the code conversion of acquiescence.More particularly, if want the code conversion of appointment, i.e. code conversion is the form to the appointment of specific purposes way address, and support entity 20 can be discerned (or a plurality of) particular code format transformation that will use.

Fig. 4 has illustrated another example embodiment of processing logic.According to illustrated processing logic, handle with above Fig. 3 describe similar, but in this example, support entity 20 be configured to server 16 in transcoding system 18 alike or similar transcoding systems.Thereby some or all of transcoding system 18 can be omitted to avoid the function of repetition from server 16.

In any case, handle from determining whether to obtain an output message (step 140).If server 16 passes on output message to support entity 20 (step 142).Support entity 20 determines whether optionally the multimedia content transcoding in the message, and then returns this message to server 16 (step 144).In case when receiving from message that support entity 20 returns, server 16 just sends this message to be delivered to destination network address (step 146).

Thereby according to above embodiment, entity 20 is from MMS-C 12 uninstallation code translation functions, and as the entity of supporting the selectivity code conversion.Equally, support entity 20 can be configured to comprise or can insert in addition a transcode database, the address that its identification wants to carry out code conversion, and it will further discern acquiescence or whether specific code conversion will be used for more special addresses of those addresses.More generally, then Fig. 4 has illustrated a kind of configuration, wherein first entity, for example server 16 passes on output message to second entity, for example, and support entity 20, be used for the selectivity transcode, and receive the message returned from second entity subsequently to be delivered to destination network.

The operator that to use the advantage of support entity 20 in this configuration or Fig. 3 configuration are networks 10 does not need that obligation provides or maintenance support entity 20.That is to say that although support entity 20 can comprise the part of network 10, it also can comprise an external entity, it is safeguarded by the third-party operator that network 10 uses.Equally, the third-party operator will bear the burden of safeguarding transcode database information, and can fulfil the useful role of consolidation and this information of frequent updating.

Fig. 5 has illustrated another embodiment again of the example process logic that can use or not use support entity 20 realizations.As previously mentioned, handle from determining whether that can obtain an output Multimedia Message handles (step 150).If, the destination-address (step 152) of server 16 or another Entity recognition output Multimedia Message.Server 16 is followed the code conversion as some or all of content of multimedia in the function execution output message of the destination-address that identifies, perhaps initiates this execution.In this context, code conversion is finished (step 154A) or is finished (step 154B) based on one or more specific formats based on one or more default forms.

As previously mentioned, whether the difference between code conversion and the not code conversion can be identified as based on definite destination-address and belong to one group of address that needs code conversion.And, can determine code conversion if desired equally, whether destination-address is identified as the address that belongs to one group of expectation particular code format transformation.Once more, whether this can comprise determines destination address corresponding to some internet domains, and for example acquiescence is encoded, or whether it is corresponding to dissimilar wireless networks, for example specific coding.

Those skilled in the art will recognize from above details, can put into practice a lot of illustrated embodiment of the present invention, and the present invention can obey large-scale variation.For example, from the context that " two technology " wireless service provides, produce several such exemplary variations.Before this, mentioned code conversion and may comprise that particular media type in the output message to the conversion more than a kind of coded format, for example increases the possibility that message acceptance person receives the compatible format content.A kind of example of indefiniteness is to this conversion of enjoying the form of extensive compatibility in the context based on the multimedia service of internet of CELP audio content and WMA, MP3 or other with the AMR audio content.

But, the present invention has imagined equipment (provison) additional or that replace, wherein exporting the Multimedia Message target is and the recipient who is associated more than a kind of technology, and for example its provider's operation is based on the wireless service user who comes the operate wireless network more than a kind of standard.For example, a given wireless service provider can be runed cdma2000 and GSM network.Under these circumstances, the identification in the destination network territory of being undertaken by MMS-C12 for given output message may not need to provide a kind of like this indication to it, that is, and and the employed technology of target recipient's mobile radio station.(notice that special MSISDN may be included in " smart card " that can be installed in GSM-type or the cdma2000 type mobile radio station.) and, thereby given mobile radio station may be designed to operate and may be difficult to know which kind of technology is on preset time arbitrarily target use for the mobile radio station from the recipient of the Multimedia Message of MMS-C 12 outputs according to multiple wireless standard.

A kind of method of this environment of addressing be pick up a kind of in may technology or other simply may technology, and if this technology different with current a kind of (or multiple) coded format of output Multimedia Message, change according to the technology run time version of selecting.Another kind method will be to discern so many technological uncertainties to MMS-C 12 programmings, and some or all code conversions to the content of multimedia in the output message are to be extensive use of the default form of selecting based on it, promptly actual or " standard " internet form in fact, MP3 for example, WAV, MPEG etc.Another kind of again method is for many technology wireless service provider, and every kind of wireless technology that they support is specified different domain addresses.Thereby an output message is a cdma2000 territory or a GSM territory etc. with target.

Certainly, other modification of the present invention comprises above-mentionedly about the characteristics of (or a plurality of) database and the flexibility of location, and this database is used to support to export the selectivity code conversion of Multimedia Message.Equally, the invention is not restricted to above details, and only be subjected to subsequently the claim and the restriction of their reasonable equivalents.

Claims (33)

1, a kind of method that is used to handle from the Multimedia Message of originating terminal network output comprises:

The content of multimedia that optionally will export in the Multimedia Message is a kind of default form as the function of their destination network addresses from the current format transcode; With

Destination network address according to them sends message.

2, the method for claim 1, wherein, the content of multimedia that optionally will export in the Multimedia Message is the message run time version conversion of e-mail address from the current format transcode for a kind of default form as the function of their destination network addresses comprises target.

3, the method for claim 1, wherein, the content of multimedia that optionally will export in the Multimedia Message is not the not run time version conversion of message of e-mail address from the current format transcode for a kind of default form as the function of their destination network addresses comprises target.

4, the method for claim 1 comprises that also the content of multimedia that optionally will export in the Multimedia Message is one or more the specific forms as the function of their destination network addresses from the current format transcode.

5, the method for claim 4, wherein, the content of multimedia that optionally will export in the Multimedia Message determines that for one or more the specific forms as the function of their destination network addresses comprise the output message target is a wireless network domains from the current format transcode, and at least a portion of the content of multimedia in the message is carried out code conversion is the form to the appointment of target radio network territory.

6, the method for claim 5, wherein, determine that the output message target is that wireless network domains comprises the target Mobile Directory Number of discerning output message and according to the title that inserts an ENUM database identification wireless network domains, wherein the ENUM database is associated the mobile radio station telephone number with special wireless network domains.

7, the method for claim 5, wherein, the content of multimedia that optionally will export in the Multimedia Message is second audio coding form to target radio network territory appointment with the audio content the output message from the first audio coding format conversion code that is associated with the originating terminal communication network for one or more the specific forms as the function of their destination network addresses comprise from the current format transcode.

8, the method for claim 7, wherein, the originating terminal network comprises the gsm wireless communication network, or the cdma2000 cordless communication network, and should be in gsm wireless communication network or cdma2000 cordless communication network during the target radio network territory.

9, the method for claim 1, wherein, the originating terminal network comprises first cordless communication network, and one or more Multimedia Message services (MMS) server of wherein drawing together from first cordless communication network according to their destination network address transmission packet sends message.

10, the method for claim 1, wherein, the content of multimedia that optionally will export in the Multimedia Message is that the output message of internet domain is carried out the code conversion of acquiescence and is the code conversion that the output message of wireless network domains is not carried out acquiescence to target from the current format transcode for a kind of default form as the function of their destination network addresses comprises target.

11, the method for claim 10, also comprise for target being the output message of wireless network domains, determine to target to be whether the special output message of special wireless network domains wants code conversion, and if be the form of this special wireless network domains appointment with at least a portion code conversion of the content of multimedia in this message.

12, the method for claim 11 wherein, determines to target to be whether the special output message of special wireless network domains is wanted code conversion to comprise to determine that whether a database identifies this ad hoc network is a network wanting code conversion.

13, the method for claim 12 comprises that also information Recognition from be stored in database is to the form of this ad hoc network appointment.

14, the method for claim 1, wherein, the content of multimedia that optionally will export in the Multimedia Message comprises for a special output message for a kind of default form as the function of their destination network addresses from the current format transcode, determine whether to want the code conversion given tacit consent to according to the destination network address of this message, if and do not want the code conversion given tacit consent to, based on whether a regional data base has been indicated determining of specific code conversion wanted in the destination network address of this message, determine whether to want specific code conversion.

15, a kind of processing from the method for the Multimedia Message of an originating terminal network output comprises:

Send the destination-address information of output Multimedia Message to second entity from first entity;

Whether want multimedia content transcoding for this message, on first entity, receive correspondence indication from second entity;

Based on this indication optionally run time version conversion on first entity; With

Send message to be delivered to destination-address from first entity.

16, the method for claim 15, wherein, second entity is in the originating terminal network-external.

17, the method for claim 15, wherein, the destination-address information that sends the output Multimedia Message to second entity from first entity comprises from first entity passes on this message to second entity, and wherein this message comprises destination-address information.

18, the method for claim 15, wherein, the originating terminal network comprises first cordless communication network, and wherein comprise the indication of transmission to the destination-address information that second entity sends the output Multimedia Message, perhaps send indication as the destination network territory of this targets of messages as the destination Mobile Directory Number of this targets of messages from first entity.

19, the method for claim 15, wherein, from first entity receive one from second entity whether want the correspondence indication of multimedia content transcoding to comprise for this message to receive an indication from second entity, the desired format that at least a portion of the content of multimedia in this message is carried out code conversion is discerned in this indication.

20, the method for claim 19, wherein, optionally comprise that in first entity run time version conversion determining that correspondence that second entity returns indicates whether to have indicated wants code conversion based on this indication, and if then at least a portion code conversion with content of multimedia in this message is the form of expectation.

21, the method for claim 15 wherein, sends message from first entity and comprises that to be delivered to destination-address the multimedia server that sends the message to the destination network is so that be delivered to the target recipient subsequently.

22, a kind of processing from the method for the Multimedia Message of originating terminal network output comprises:

To export Multimedia Message and be transferred to second entity from first entity;

After second entity has made the selectivity code conversion that this message is subjected to the content of multimedia in this message is carried out, receive the message of returning from second entity at first entity; And

Send this message to be delivered to destination-address from first entity.

23, the method for claim 22, wherein, second entity is in the originating terminal network-external.

24, the method for claim 22 also is included in second entity selection ground and carries out the code conversion of the content of multimedia in this message and then this message is turned back to first entity.

25, the method for claim 24, wherein, the code conversion of optionally carrying out the content of multimedia in the message comprises based on the destination-address of this message determines whether this message wants code conversion, if and wanted code conversion, then at least a portion with the content of multimedia in the message would be second coded format from the first coded format code conversion.

26, a kind of processing from the method for the Multimedia Message of originating terminal network output comprises:

The destination-address of identification output Multimedia Message;

Based on the identifying purpose way address is a destination-address of having indicated the code conversion of acquiescence, optionally carries out the default code conversion of the content of multimedia in the message;

Based on the identifying purpose way address is a destination-address of having indicated the appointment codes conversion, optionally carries out the appointment codes conversion of the content of multimedia in the message; With

Send this message to be delivered to destination-address.

27, the method for claim 26 wherein, sends this message and comprises a multimedia server that sends the message in the destination network to be delivered to destination-address, so that be delivered to the target recipient of this message by this multimedia server.

28, the method for claim 26, wherein, the identifying purpose way address is to have indicated a destination-address of default code conversion to comprise that this destination-address of identification is corresponding to an e-mail address for Internet.

29, the method for claim 26, wherein, the identifying purpose way address is to have indicated a destination-address of appointment codes conversion to comprise that this destination-address of identification is corresponding to a cordless communication network wanting code conversion.

30, the method for claim 29 comprises that also at least a portion with content of multimedia in the message is converted to a kind of prescribed coding form from the present encoding format code, and wherein destination-address has been indicated the prescribed coding form.

31, a kind of Multimedia Message center that is used to handle from the Multimedia Message of originating terminal network output, comprise a server, the content of multimedia that is configured to optionally will export in the Multimedia Message is a kind of default form as the function of their destination network addresses from the current format code conversion, and sends this message according to their destination network address.

32, a kind of Multimedia Message center that is used to handle from the Multimedia Message of originating terminal network output comprises:

A multimedia server, the destination-address information that is configured to send the output Multimedia Message to database server and from the database server reception return about whether this message being wanted the indication of multimedia content transcoding;

Described multimedia server comprises and is configured to indicate first circuit of the conversion of run time version optionally and be configured to send this message to be delivered to the second circuit of destination-address according to this.

33, a kind of Multimedia Message center that is used to handle from the Multimedia Message of originating terminal network output, comprise a multimedia server, it is configured to the output Multimedia Message is transferred to a transcoding system, after this transcoding system has made the selectivity code conversion that this message is subjected to the content of multimedia in this message is carried out, receive the message of returning, and send message from first entity to be delivered to destination-address.

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