First, the basic concept of MMS
1. What is MMS?
MMS is the abbreviation of Multimedia Messaging Service, Chinese intention is a multimedia SMS service, which is the latest business developed in accordance with 3GPP standards (3GPP TS 23.140) and WAP Forum (WAP-206 and WAP-209) for multimedia information. Its biggest feature is to support multimedia functions, also known as "GSM384", because this technology enables "global pass" data rate from current 9.6kbps to 384kbps. Multimedia SMS services are supported by WAP wireless application protocols for support of the WAP wireless application protocol with WAP Wireless Application Protocol. Support voice, Internet browsing, email, conference television, etc., realize instant mobile phone-end, mobile terminals to the Internet or Internet to mobile terminal multimedia information transmission.
2. The difference between MMS and SMS, EMS
SMS, Short Messaging Service SMS service, you can send textual text messages such as mobile devices such as mobile phones. The term of SMS appeared in the early 1980s, but it has begun to enter the commercial market until the early 1990s, and until 1999, the business spread rapidly in the world, and has a continuous explosive growth trend. You can just enter the 21st century, and people propose EMS - Enhanced Message Service to enhance SMS business. In addition to text, it provides simple images and sound SMS services, in June 2001, several mobile giants jointly unified The standard of EMS, and the mobile phone with this function is to be produced, but because there is no support for NOKIA, it will not have it. Then why don't I support EMS? Because Nokia believes that the MMS era will come soon, there is no need to regenerate a transitional standard.
(1) SMS is the earliest SMS business, is a SMS business that is now the highest. At present, SMS is only to establish a text in the mobile phone and then send it to a friend, and it is easy to use, and the length of this SMS is limited to 140 bytes. SMS is welcomed by a simple and convenient use function, but it is always the first generation of wireless data services, there is a limitations of technical standards in terms of content and applications. SMS adopts storage forwarding mechanism. The work of the SMS transmitted packet is completed by the SMS center in the mobile network, instead of the end user. If the user is not in the service area, the SMS is stored in the SMS center, and then forwards to him after the user appears. Also use the transfer confirmation mechanism. In the circuit switched data environment, the connection is end-to-end, so the user can know if the connection is completed, and the data transfer is, but in the GPRS environment, the terminal attached to the GPRS carrier is "always online", it is in any When you are ready to transfer or receive data (relative to the user), the task of checking whether the data packet is sent to the user head, and its corresponding cost is also better for each group data service. SMS is high. (2) EMS enhances SMS service, SMS enhancement version, is SMS to the MMS springboard. In addition to sending text messages like SMS, you can also send information such as simple images, sounds, and animations, still running on the original SMS running, and there is no difference in transmission paths and operations. This standard is open, any third-party company or individual interested in EMS can develop application software and services on this platform.
EMS can integrate simple tones, pictures, sounds, animations, text together, then display on the EMS phone, for example, when you play an exclamation point in the text message, you play the relevant tone, or put simple black and white pictures and text and sound effects simultaneously come out.
EMS is the enhanced version of SMS, also uses signaling channels, stored and forwarded text messages through SMS center, and the principle of implementation is similar, and there is no need to upgrade the underlying network. The upgrade from SMS to EMS is transparent, and the implementation of EMS has little impact on existing SMS centers. EMS's largest modification to existing SMS center is an operator billing system. After all, EMS and SMS belong to different categories of business. The capacity of an EMS SMS may be several times better than SMS, and some formats in EMS are occupied. The space is also much larger than SMS, so the pricing strategy should not take a "one knife cut" program. In this case, the SMS center needs to add some modules, record the relevant technical value and generate the corresponding call details record.
(3) MMS means multimedia SMS business. MMS is conceptually similar to SMS and EMS, which can be understood as the evolution of SMS to multimedia. However, unlike SMS and EMS, MMS has little limit for the size or complexity of the information content. The MMS can not only transfer text messages, but also transmit images, images, and audio, so MMS brings the biggest change in the development of operators to develop more diversified mobile communications services. MMS can both send and receive multimedia SMS, and can also send and receive messages containing attachments. From the perspective of the user, multimedia applications will be the key to attracting them. From a technical point of view, MMS is definitely not as simple as SMS, simple, MMS is a high-level application encapsulated on the WAP protocol (Note: Here is just the encapsulation of the protocol, there is no WAP browser itself) Using this high-level application, information transmitting including image, audio information, video information, data, and multimedia information such as text. Some of the insiders regard it as an alternative to email, and some treat it as the electronic version of the postcard, of course, more is to see the multimedia SMS. Just like the radio to the development of the TV, multimedia SMS compares the original ordinary SMS, except for basic text information, more equipped with rich color pictures, sounds, animations and other multimedia content. With MMS, mobile phones can send and receive multimedia SMS, including text, sound, images, videos, MMS support mobile phone greeting cards, mobile phone pictures, mobile phone screensaver, mobile maps, commercial cards, cartoons, interactive videos, etc. Multimedia services. MMS automatically transmits the content created by the user. It mainly adds to the recipient's phone number, which MMS communication can be performed between the terminals. At the same time, MMS also supports Email addressing, so information can be passed between terminals and email. As an emerging mobile data business, MMS development requires multi-faceted cooperation and support, including network operators, equipment manufacturers, content providers, etc., and positive attitudes held by all aspects make MMS to come out.
However, implementing MMS is not a relaxing thing. In order to achieve new bearer service, network infrastructure needs to be updated, and the MMS terminal must also be popular, and there must be rich, exciting content to promote the development of applications.
SMS, EMS, and MMS technology comparison list are listed below.
Table 1 SMS, EMS, MMS technology comparison list
SMS short message EMS enhancement SMS MMS multimedia SMS English full name short message service transmission service send text support support support send MMS picture does not support support support send color picture does not support support, send ringtones do not support support support to send audio flow Support does not support mobile phone reception No need to set up the URL setup multimedia SMS center server, and dedicated GPRS account mobile phone send settings SMS SMS center number Setting SMS SMS center number Need to support GPRS is not
3. Basic features of MMS
Multimedia SMS services provide multimedia data communication services for mobile users, enhance the performance of information services on the existing SMS business and EMS business to meet the increasing information communication needs of users. The multimedia SMS service has the following basic functions: ◆ Multimedia SMS transmission and reception. After the mobile phone terminal synthesizes the multimedia SMS, multimedia SMS can be transmitted to all legal users in the network, and multimedia SMS is stored and processed by MMSC, and is responsible for the transfer of multimedia SMS in different MMSCs. At the same time, the recipient user can receive multimedia SMS from the MMSC.
◆ Provide support for non-MMS terminals. This is done by the "non-multimedia SMS support system". Once the non-MMS end user receives the SMS notification, you can access multimedia SMS, such as E-mail, WAP, WWW browsing, etc. by other means.
◆ In the network bearer mode, it will support the 3G load-carrying mode based on CSD-based bearer and GPRS-based bearing mode.
◆ Multimedia SMS business supports point-to-point business and points to multi-point business. Point-to-point multimedia SMS service refers to the sender and the receiver is a terminal or application system; point-to-multimedia SMS service refers to a plurality of terminal addresses. In a multimedia SMS transmission, you can specify a plurality of receiving terminal addresses.
◆ Support for MMS value-added applications. The multimedia SMS system should provide an open, standard API interface, support value-added application development.
4. Transmission content of MMS
MMS initiates one of the manufacturers about MMS's white paper, indicating several transmission contents of MMS can include:
◆ Text: The length of the MMS transmission text is theoretically unrestricted. In fact, mobile phones allow input to how much text is related to network transmission speeds. In addition, MMS is the same as EMS, and the text can also be plated.
◆ Picture: MMS supports the standard JPEG, GIF format images, also support GIF animation format. This means that the picture of the MMS can be greatly improved compared to EMS. Add pictures to the text, making a graphic and talked documents are not difficult for MMS. Soon, with digital cameras, the model of supporting MMS will become popular. At that time, the interesting photos are photographed anytime, anywhere, and sharing with friends will be the most cost-tide lifestyle.
◆ Sound: Compared with EMS only support ringtone delivery, the use of sounds in MMS is more widely used. For example, the sound of the party is recorded, along with the scene of the scene to the unable to participate; make a beautiful birthday card, with the beautiful birthday, and "I wish you a happy birthday" together with the sound of the sound, "I wish you a happy birthday" together.
◆ Video: Restrictions on the transfer rate of 2.5G network (GPRS or CDMA2000 1x). MMS currently can only transfer a few seconds of video clips. Such short videos can only be used for movie trailers or one or two wonderful shooters. Of course, merchants can use MMS to do mobile video advertisements. In the future, you can watch the entire movie through MMS, and people can download while downloading by using the "streaming media" technology used in MMS.
In fact, the strength of MMS is not only rich in content, but also we can combine the content of different nature, for example, give photos with text description, add sound to animation, add accompaniment music for video clips, etc. Wait. Photo, audio and video is the biggest feature of MMS, but also the connotation of MMS as "SMS Revolution".
Second, the basic characteristics and characteristics of MMS 1. The industry standard of MMS is developed by the WAP Forum and 3GPP (3G Partnership Project: 3G Partner Program). MMS is running on the upper layer of the WAP protocol, so it has no strict restrictions on the transmission format, supports both circuit switched data formats, and also supports universal packet wireless services GPRS format. The working principle is to use high-speed transmission technology EDGE, which is the step of transition to the third generation mobile communication system IMT-2000. It is called "GSM 384" because this technology enables data rates from current 9.6kbit / s to 384kbit / s, this rate can support voice, Internet browsing, email, conference TV and other high-speed data. business. With the support of the GPRS network, videos, pictures, sounds, and texts are transmitted to the carrier with WAP (wireless application protocol). 2. The MMS information is compressed in standard mode, so the receiving one can confirm that it does not support the content format, and is disposed in a control method. This is also the way to solve the content interaction problem on the Internet. 3. The media types recommended by the MMS standard are: JPEG, GIF, Text, AMR voice and other non-mainstream formats. In order to achieve better interactivity, Nokia and other manufacturers have intended the "MMS Consistency File", listing the minimum set of content supported by MMS phones. 4. The MMS standard does not specify the maximum capacity of single MMS information, which is mainly to ensure future interoperability, avoiding the dilemma encountered by SMS. Therefore, the MMS information size is independent of standard, just operating problems. In addition, it also depends on the operator's decisions, such as whether they want the information size to standardize, to facilitate billing. Third, MMS Network Structure and Working Principle 1. MMS Network Basic Structure Mobile Multimedia Information Business System covers a variety of types of networks, and can integrate existing information business systems in these networks. The mobile terminal operates in the Multimedia Information Service Environment (MMSE). This environment includes both 2.5G and 3G networks, as well as mutual roaming between networks. MMSE provides all relevant business components such as information transmission, storage, notification. They can be located in the same network or in different networks. Before the MMS service is put on the market, many of the actual preparations for the network must be completed in advance. In addition to the terminal of the MMS, in addition to the terminal of the hardware, the MMS center, WAP gateway, database server, value-added service (VAS), etc. are also required. ◆ Multimedia Information Center (MMSC) Among the Multimedia Information Business Environment (MMSE), Multimedia Information Center (MMSC) is the core of the system. Composed of MMS servers, MMS relays, information storage, and databases. MMSC is the core of the MMS network structure, which provides storage and operation support, allowing terminals to terminals and terminals to email instant multimedia information transmission, while supporting flexible addressing capabilities. The MMSC is the storage and forwarding network elements passing MMS information from the sender to the recipient. The concept of MMSC is similar to SMSC, ie, the server is only stored during the recipient phone. After finding the received call, MMSC forwards multimedia messages to the recipient and deletes this message from MMSC. Since the MMSC does not store the message without the send, it is not a mailbox server. MMSC is a new network element that provides MMS services. SMSC's software cannot be directly upgraded to MMSC directly due to different transmission capacity and interface requirements. In addition, MMSC needs to run many other networks such as Internet interfaces, as well as providing external application interfaces required for value-added services, and MMSC should also have an EMAIL interface. ◆ WAP gateway Although users are similar to SMS, MMS cannot transmit channels in SMS, and SMS's transmission channel is too narrow for transmitting multimedia content.
In the protocol layer, MMS uses the WAP Wireless Session Protocol (WSP) as a transport protocol. In order to use the WAP protocol in MMS information, a WAP gateway is required to connect to MMSC and wireless WAP networks. Some manufacturers' MMSC connect wireless data networks using integrated WAP interfaces. And at the beginning of the service opening, the existing WAP gateway in the operator network can still be used due to the low flow rate. In order to enable operators to cope with gradually rising MMS traffic, MMS transmission can use a special WAP gateway. ◆ Database server database allows users and operators to effectively provide, control and manage value-added services. The database server should have a high run speed, and have an optimized fast network device to read the data request, ensuring that the MMS various network elements can be equally shared by database information. MMS database services should be customized according to everyone's needs and hobbies. ◆ Value-added services (VAS) include multimedia terminal gateways, multimedia email gateways, information transfer gateways, and multimedia voice gateways. 2. MMS architecture multimedia SMS business does not rely on specific network platforms, whether it is HSCSD (High Speed Circuit Exchange Data Service), or GPRS, EDGE, UMTS, can support MMS services. Multimedia SMS can integrate existing message systems, and connections between different networks can be done through IP and related message protocols, which ensures compatibility of multimedia messages in different wireless networks. In view of the network bandwidth, transmission speed, and mobile terminal considerations, my country's MMS business is first applied on the GPRS network platform and will be mature in the future 3G UMTS network. 3-L is an architectural diagram of a multimedia SMS system, and the user terminal operates in the Multimedia SMS Service Environment (MMSE). MMSE includes various types of equipment, such as delivery and storage of multimedia SMS, providing users with a complete MMS service. The distribution of these business elements is flexible, which can be included in the same network, or may be distributed in several unwarded network towels (or even a few networks that are not type of types). At the same time, since each function entity contained in MMS is a logical entity, it can be bundled with certain functional entities according to the service or operator, and more common is to use the MMS server and the MMS repeater as a A device is implemented. Figure 3-1 Multimedia SMS System Structure Figure 3 As seen in Figure 3-1, network devices in the MMS system include MMS repeaters, MMS servers, user databases, and user agents. ◆ The MMS server is responsible for storing and processing multimedia short messages in both directions. Each MMSE can have multiple MMS servers, MMS servers, and an external network's e-mail server, SMS server, etc., provide users with rich service types for users through standard interfaces. ◆ The MMS repeater is responsible for delivering messages between different messages to integrate various types of servers in different networks. The MMS repeater should be able to generate billing data (CDR) when receiving or transmitting messages to other MMS user agents or additional MMSE. The MMS repeater and the MMS server also have a function of address translation and temporary storage multimedia SMS to ensure that multimedia SMS will not be lost before successfully transferred to another MMSE entity. ◆ MMS user database records and user-related business information. If the user's business characteristics are controlled to the user to access the MMS service. ◆ User agent can be located in an external device directly connected to the user equipment. User agent is a functional entity of an application layer, providing users with browsing, synthesizing, and processing multimedia SMS. Processing for multimedia SMS includes operations such as sending, receiving, and deleting. The MMS user agent also provides negotiation of user terminals to receive multimedia SMS capabilities; send multimedia SMS notifications to users; encrypting and decrypting users; multimedia SMS signing between users; in the case of user SIM cards support MMS, processing SIM cards and MMS related information; management of user characteristics.
3. MMS implementation of multimedia SMS business systems must have flexibility, interoperability between different types of networks and terminals, and to integrate and develop new services. Multimedia SMS systems can have two implementations: based on WAP implementation and IP-based implementation. (1) WAP-based implementation WAP protocol provides powerful support for MMS implementation in business specifications or underlying technology. The protocol stack structure of the MMS service is implemented using WAP is shown in Figure 3-2. Figure 3-2 WAP-implemented MMS protocol stack structure In the MMS application implemented using WAP protocol, the entire link can be divided into two parts. The first part is a link between the MMS user agent and the WAP gateway, which uses the WAP protocol stack structure and provides general service in a variety of different wireless media. For the WSP (WAP Session Protocol) for the MMS-oriented service. The second part is the link between the WAP gateway and the MMS repeater, and the connection between them uses IP technology, and the high-level HTTP protocol is used to communicate. In the process of communication, the WAP gateway is a transparent device that does not explain and modify the data it forwarded. A typical MMS communication process should pass through the following stages; ◆ MMS user agent sends multimedia SMS; ◆ MMS repeater notifies the target user agent has multimedia SMS to arrive; ◆ Target MMS user agent receives multimedia SMS; ◆ Target MMS user agent The MMS repeater sends a receiving confirmation message; ◆ MMS repeater to the source MMS user agent reports the result of multimedia SMS delivery. (2) IP-based implementation In addition to WAP-based implementation, 3GPP is developing IP-based MMS implementation. Figure 3-3 shows an IP-implemented MMS protocol stack structure, and uses a TCP protocol that is optimized for the characteristics of the wireless network as the transport layer protocol. Communication between the MMS user agent and the MMS repeater / server can use an application layer protocol such as SMTP, POP3, IMAP4, and HTTP. Figure 3-3 On the IP-implemented MMS protocol stack structure and WAP-based implementation are similar to the link between the user terminal to the MMS server / repeater is also divided into two parts. The high-level protocols used in two parts are the same, and the difference between the transport layer protocol, the MMS user agent, and the IP gateway can use TCP protocols suitable for wireless link features, and between the IP gateway to the MMS repeater / server. Communication uses a normal TCP protocol. 4. MMS working principle and process multimedia information service is built on WAP for carrier data transfer network. It can be in GSM networks (R7 / R8), GPRS networks, CDMA 1x, and future 3G networks. However, for the user's satisfactory bandwidth, it is best to be in GPRS, CDMA 1x, or 3G network environments, of course, can be used in GSM networks that implement HSCSD technology. WAP technology plays an important role in multimedia information services. With the function of WAP's PUSH, NOTIFICATION, and POLL, end users can complete communication with the system. Taking the system to send information to mobile phone as an example, analyze the flow of multimedia information services. The part of the wireless access is omitted in the process analysis, with only the relevant parts of MMS-C. The analysis process is as follows: (1) When a multimedia message is sent to a user, the information is encoded in the WAP WSP protocol, transmitted to the WAP gateway via the wireless network. (2) The WAP gateway communicates with MMS-RELAY in HTTP protocol and transmits the file content to MMS-Relay. (3) MMS-RELAY sent files to the MMS-C server. The content of multimedia information in the server will be converted to MIME, and stored in the MMS-Message Store. (4) The server performs data analysis to obtain routing information, user terminal information, and the like. The information in the user database is called during the analysis.
The system will determine whether the user's terminal can support MMS, and perform different processing according to the load capacity of the user's terminal (such as display resolution, the capacity of the terminal, etc.). For example, when the user terminal does not support the MMS, the system will remove the multimedia information in the multimedia information, and only the text portion of the information is sent to the user in a SMS. (5) After confirming the processing method, the system is routed by the MSISDN number called the user. MMS-Relay will communicate with external networks via the WAP gateway. This information is always stored in the SMS memory until the called user has accepted the information. Operators can set saved time lengths through software. (6) The system server generates billing information and transmits it to the billing center. Fourth, MMS Application and Operation 1. MMS Application Multimedia SMS Business Currently, the main application areas include: ◆ E-MAIL. E-mail will become one of the most important applications of MMS. ◆ Advertising. Since the clear image, even audio clips, MMS will become a means of advertising with the newspapers, magazines, and the Internet. ◆ Voice mail. Operators can integrate existing voicemail without additional investment, "push" to the user's mobile phone. ◆ Ringtones and pictures. Sending ringtones from the Internet and simple images have been universal applications, with MMS, users can enjoy higher quality services. ◆ Combine with other services. It can be combined with existing applications such as positioning services, via MMS, can send a clear and clear electronic map. The MMS is very wide. It not only pulls the distance between people and people, but also makes our life more than a multi-possession. The following we will give examples of applications in life. You can use a photo with a friend with a digital camera, transfer to your good friend through the MMS multimedia SMS service, and also send a MMS mobile phone to yourself, when the tablecloth is placed on the phone screen, keeping with friends Happy time together. In the morning you have to go to work, don't give up this valuable time, subscribe to a MMS daily sentence, used to enhance your own language skill or English listening, not only the daily sentence sent by MMS, not only can display many languages Sentences and phigns, and can be dilated, but also listen repeatedly. You can put these textbooks in the mobile phone MMS recipient, review it at any time when you are idle. For investors who want to keep financial information, multimedia SMS business will be a big tool, you can subscribe to colored stock line maps and trend, transfer to your MMS phone at designated time and conditions, and no longer just simple The stock price and index let you become a smart financial winner. If you like to collect cute cartoon animations, then multimedia SMS business will not let you down, because MMS's powerful features can be transferred and dial, so you can download favorite cartoon with MMS color animation. Characters go on your MMS mobile phone, as a mobile phone screen protection screen, always accompany you. In fact, the services and applications that can be provided through MMS multimedia SMS is very rich, but the above is just a few simple examples. 2. MMS system networking scheme Multimedia SMS Business System Networking scheme is shown in Figure 4-L. Figure 4-1 Multimedia SMS Business System Network Scheme MMS system handles all multimedia information transmitted, the system has information storage capabilities, and stores unable to send information. The interface of the system can be connected to a variety of networks, supporting a variety of protocols, all multimedia information transmitted through an interface. The user database of the system includes service parameters for all users, and the operator can set the parameters in which the parameters are set by the user yourself. The MMS system is connected to the multimedia information server and other application servers on the Internet via the SMTP protocol, providing multimedia information services. The MMS system and the WAP gateway send a notification to the mobile terminal user through the PAPC PUSH Access Protocol (PAP) protocol. Multimedia information is implemented between the MMS system and the WAP gateway through the HTTP protocol. MMS requires WAP as a carrier for service. The image formats supported by the MMS system include JPEG, GIF89A, GIF87A, WBMP; supports all Internet supported text formats; support AMR audio formats.
Multimedia information sent by the MMS system is not limited in the specification, provided that the WAP gateway supports large-capacity transmission. The multimedia message size that end users can receive depends on the limit on each multimedia message size on the phone. MMS runs requires a higher network bandwidth, which is generally considered to operate over the GPRS or more. GPRS is the basic core bearer platform for the MMS system. The GGSN is connected to the WAP / PUSH gateway through the GI interface, and then connect to the MMS system, the MMS system transmits multimedia information through this path. Since GPRS uses packet switching technology, it has a high transmission rate (up to L70Kbit / s) and large data throughput, so that the transmission of multimedia information can be guaranteed. MMSC is an independent network element, the introduction of the MMS business has no effect on GSM900 / 1800 and GPRS networking, and the connection between MMSC and other network elements is based on IP. The MMS information business process is shown in Figure 4-2. Figure 4-2 Multimedia SMS Business Flow Diagram ◆ MMSC is connected to the WAP gateway via IP. ◆ MMSC is connected to MSC (GSM) or GGSN (GPRS) through WAP and uses the WSP (Wireless Session Protool) protocol when transmitting multimedia information. ◆ MMSC is connected to SMSC via WAP, supports SMPP, CIMD2, and UCP protocols. ◆ The MMSC is connected to the billing system, and the CDR bill is transmitted using the FTP protocol. ◆ The MMSC is connected to the network management, and can be alarm to the network management through the SNMP protocol. To maximize MMS, users need to be compatible with MMS protocols or terminals, such as supporting 2.5G and 3G mobile phones or PDA (personal digital assistants), and have a large display. 3. How to accept and send multimedia SMS? MMS multimedia SMS is a completely different kind of information service that is completely different from ordinary SMS, it belongs to an upgrade service of SMS SMS, can send color pictures, text, audio streams, and ringtone, Based on the SMTP protocol, it is a bit like a normal email. When the mobile phone received MMS multimedia SMS, you need to set the server URL of the MMS multimedia SMS, which is a bit like setting the mail server. When sending, the user's address will be " 8613900112233@mms.gmcc.com" Similar to this address, the front part is the complete mobile phone number, which is the domain name of the multimedia SMS server server. Is it very much like an email address? Therefore, for mobile phone users, sending and receiving MMS multimedia SMS is just like sending and receiving emails. However, it is necessary to note that although MMS multimedia SMS can send a normal email address, it is necessary to receive mail software, such as Outlook, Foxmail's mail software supports MMS multimedia SMS unique SMIL to be displayed. The MMS multimedia SMS will be stored on the server of the multimedia SMS center, and the user will receive a message from MMS multimedia SMS, and the user needs to confirm that the machine will go to the multimedia SMS server on GPRS, receive MMS multimedia short. Information, just like logging in, but there is no password. If the user does not intend to download that information is also possible. Moreover, multimedia SMS is confirmed, read the confirmation function, allowing the sender to know if the recipient has seen its own multimedia SMS. The transmission of MMS multimedia SMS is the same as ordinary SMS, can be sent via mobile phone, allowing users to join pictures and sounds. Alternatively, you can send it through the website, because the SMTP protocol is used, so it is more simple to design for website transmission.
4. MMS production process MMS will integrate images, pictures, bells, and text in a text message, so that mobile communications is more interesting and vivid, then how do it implement, let's take a new generation of Sonyericsson T68i Introduced for example. The process of making an MMS information is as follows: 1. Newly built -> 2. Select Add Text -> 3. Add the image-> 4. Add sound -> 5. Preview -> 6. Send. As shown in the figure below: 5. MMS Production Tips First, there is a need for image processing tools and basic processing knowledge (such as Photoshop, ImageEditor, etc. to edit processing, and tools for making images). The image produced is generally within 101 x 80 pixels, so the source of the source does not require too high. If you need to record your own sound, you also need to go to the microphone and recording software (the easiest way you can find the recorder directly in Windows). And the recorded file format is required to be a 16bit WAV format document, otherwise it will not be able to convert it into the AMR format of the MMS format will be converted through the sound conversion tool we provide. If the MMS you want to make is more personalized, you can put a MMS_composer again so you can make professional level multimedia SMS. V. Company MMS Solution 1. The multimedia SMS service launched by Siemens Company Siemens is a comprehensive mobile solution including both platforms and applications. It is a standard solution. It can combine two or more different media content into a text message, sent from one mobile terminal to another. Siemens multimedia SMS solution fully follows WAP and 3GPP standards. These standards have enabled operators and service providers to quickly obtain multimedia short messages, ensuring compatibility with existing equipment, and enables investments in operators and service providers to get a quick return. Multimedia SMS Center (MMSC) is the core of Siemens solution. MMSC includes a multimedia SMS server, supports existing and future criteria, thus ensuring a smooth transition from existing 2G to 3G network structures. It uses a network structure of a general SMS service such as a WAP gateway to ensure high performance, high reliability, and high scalability. MMSC has an open interface with existing SMS platforms. At the same time, the multimedia SMS center can generate detailed call data record (CDR), which supports various billing models based on traffic, session, event, duration, location, service, or registration information, etc., which supports various billing models, also supports prepaid systems. Multimedia SMS system allows MMS to support mobile phones that support MMS, on the Internet, and PDA devices that support MMS and connected. MMSC checks each MMS and converts the MMS format according to the display capability of the recipient device. For devices that do not support MMS, such as devices that only support SMS or EMS, MMSC prompts users to receive new MMS in SMS, and then users can view the MMS via WAP or Web. MMS can be used as a broad application platform to carry interactive games, mobile commerce, email, and instant text messages. For operators or service providers, this is a new type of business model and a good way to increase income. It also provides a range of attractive applications, such as electronic cards or personal shadows, which are based on broad research on user operating modes. Siemens Multimedia SMS service platform provides good flexibility and customizable features, while also supporting millions of registered users. It integrates standard protocols and standard API interfaces to support the "push" ((push) function. Enable mobile operators and service providers to quickly provide mobile devices-based multimedia short letter service.
Many of its features make many end users to pay for the following services: ◆ Whenever you can get multimedia information; ◆ Mobile email; ◆ streaming media transmission; ◆ Attractive interesting ringtones; ◆ Personality Voicemail; ◆ Address book; ◆ Send colorful animated greeting cards; ◆ E-greeting cards and personal albums; ◆ Pictures, images, text, and sound composed of multimedia libraries. 2. Nokia: Seamlessly upgraded MMS Nokia has built an application platform for MMS services and has been successful. In February 2002, Finnish operators SONERA and Estonia Master EMT have realized the world's first MMS international roaming and interconnection on GPRS. Asia's first MMS roaming and interconnection between China's different operators in China in April. These two MMS roaming and interconnections are achieved by Nokia mobile phones and infrastructure. Nokia Multimedia Information Solutions will bring practical benefits to consumers and network operators. Nokia's MMS platform includes: (1) Multimedia Information Business Center MMS network structure is based on WAP technology multimedia information service center (MMSC), MMSC makes multimedia information in time time between different content types, support flexible The addressing method, MSISDN and email. The concept of MMSC is similar to the SMSC, ie the server is only stored during the receiver phone. After the phone is found, the MMSC immediately forwards multimedia information to the recipient, and deletes this text message from MMSC. If the user is temporarily unable to turn, the MMSC will save this information until it is turned on. Nokia provides a platform for performing storage forwarding operations for multimedia information. In addition, Nokia's MMSC provides an external WAP gateway, and the billing system provides an interface and provides an external application interface (EAIF) for the MMS application, and many other interfaces. (2) WAP gateway SMS transmission channel is too narrow for multimedia content, Nokia believes that any cellular data carrier that provides higher than 14.4bit / s is sufficient to transfer MMS data, including single channel GSM data, HSCSD, and GPRS, or Use other protocols and carriers. Nokia MMS Center connects the wireless data network using an integrated WAP interface, and at the beginning of the service, the existing WAP gateway in the operator network is still available due to the low traffic. In order to enable operators to sufficiently cope with gradually rising MMS traffic, MMS transmission uses a special WAP gateway. The segmentation recombination (SAR) is a software feature supported by the Nokia WAP function, which can split the big information to be transmitted into small data packets, which can reduce the retransmission time after the packet. In addition, SAR can also reduce the network load due to the use of more efficient retransmission strategies. (3) The MMS solution of the MMS Database Server Database Server provides parameters regarding the capacity of the user's mobile terminal, stores, and processing the terminal user multimedia service, and details about the end user subscription service. In order to achieve seamless connections in Internet and mobile information, Nokia's MMS solution converts Internet supported MIME format to 3GPP standard definition format supported by mobile networks. In addition to information such as data, voice, images, Nokia MMS, can also provide value-added services for operators, such as those with "notification" application and information storage space for users who do not have MMS terminal devices. Terminal gateways. Provide multimedia email gateways that deliver MMS information capabilities between MMS terminals and emails; provide information delivery gateways for open service creation interfaces; multimedia voice gateways with multimedia calls to answer voice services.
3. Ericsson: Make communication more interesting Ericsson believes that the multimedia information system is essentially used as image processing and transmission devices to use the mobile terminal to use the user to exchange important visual information, so that communication is more interesting. In short, MMS will make full communication possible. Multimedia Information Center (MMC) is a central element of the MMS network structure, composed of MMS servers, MMS proxy-relay and MMS memory, and the like. It provides storage and operation support, allowing terminals to terminals and terminals to instant multimedia information transfer to emails while supporting flexible addressing capabilities. The center MMS agent - relays interact with applications running on the MMS terminal, used to provide various information transfer services. WAP is used as a carrier that transmits MMS information between MMC and MMS clients (applications). The WAP gateway is used to provide and retrieve information. At the same time, make full use of the existing and familiar technical and network models, using WAP as a bearing protocol, the MMS standard is built on the existing SMS mode, which provides information storage and forwarding transmission (provided immediately), not the mailbox type application model. . By using high-speed data transmission technology such as EDGE, GPRS, and UMTS, MMS will support various images, video, and audio formats to bring a complete communication experience to users. The MMS information is sent via the MMS server. The MMS server supports flexible addressing (to the phone number and email account), which makes the user interface more friendly and allows operations to have more complete control. In addition, the MMS server is also responsible for supporting all of MMS. 4. Ovewi Systems Company Austrian OpenWave Multimedia SMS Service Center (MMSC) is a large-capacity, highly scalable service platform that can bring the Internet multimedia information processing function for mobile devices. . With the OpenWave MMSC, mobile device users with MMS (Multimedia Information) function can send and receive a wide variety of information, including information, music, graphics, images, and other media types. (1) End-to-end solution OpenWave MMSC has the advantages of email sending and mobility platforms with scalability and reliability, while combining a variety of advanced applications provided by some emerging applications, content, and billing ecosystem partners. technology. Openwave's air registration technology ensures that users quickly complete settings and ensure that operators have lowered. Since it integrates prepaid solutions and posts solutions, the operator can make the operator to flexibly formulate the above-mentioned services according to the situation of the target market in the appropriate way. OpenWave allows operators to provide enhanced services through the MMSC server infrastructure, such as unified SMS. These services can be implemented by simple service level management. (2) Retention SMS business model As the natural development of SMS, the OpenWave MMS solution uses the key success guidelines for SMS user experience and business model. OpenWave has integrated this good user experience into the design of OpenWave MMS technology, so it not only ensures that the SMS good user experience can be reserved, but also makes its function to expand, add the rich text messages of OpenWave products. Features. (3) The telecommunications level solution OpenWave MMSC is completely based on IP technology, and its design implements interoperability through open interface and third-party technologies and systems, supports millions of users. This application uses a distributed, IP-based architecture, composed of low cost, large-capacity hardware components, and has the advantages of simple operation, high efficiency, and cost-effective cost due to its information storage and directory. IP-based MMS is transmitted by Internet, limited to less. At the same time, the MMS solution is open and strictly complies with 3GPP and WAP standards. Therefore, when 3G is launched, MMS will also be an important application system.
At the same time, due to IP, cross-network transmission and reception can be achieved, and users can perform MMS information at any time and place. (4) In order to solve the interoperability problem, OpenWave has introduced the OpenWave mobile SMS gateway (MMG) to enable the operator to implement the transformation of the mobile SMS service of IP, so that the end user can send SMS to users using other operator services. OpenWave MMG has a load balancing, concentrated, flow control, so that it can achieve very economical intercommunication or direct connections between the ISP or with Communication Service Provider (CSP). Mature deployment OpenWave SMS technology has achieved great success in Japan. At present, large mobile SMS and photo SMS systems deployed by Japan have OpenWave technology. Sixth, MMS mobile phone With the large-scale promotion of MMS, mobile phone manufacturers are also ready to move, Ericsson Sony, Nokia, Motorola, Panasonic and other companies have developed mobile phones that support MMS, in addition to MMS, more color screens and cameras as selling points . Here are several MMS phones. Nokia 6610NOKIA6610
Network Type: GSM900 / 1800 / 1900MHz GPRS Color: Black, White Size / Volume: 106 × 45 × 17.5mm / 71cc Call Time: 120-300 Minute Standby Time: 150-300 Hours Optional Color: Black, White Weight: 84 Koni: lithium battery
Main functions: built-in antenna WAP, 4 direction rolling key large color screen: 128 × 128 pixel color screen to display 4,096 color new synthetic bells can be received by MMS, via WAP or using NokiaPC Suite 5.0 from clubnokia ** download Date clock, built-in vibration, recording built-in boost can be replaced [gray, dark blue, green, grape red] voice dial, voice answer, message answer MIDI (synthetic tone) ringtone, built-in stereo FM radio Chinese input [T9] self-compiled Ringtone, recording ringtone wireless download function [download ringtone, picture, game, etc.] Scenario, call time prompt phone book, call record, hands-free call animation screensaver, graphic menu built-in game [can download interactive game] infrared interface, built-in MODEM EFR, SKT service, alarm clock, calendar calculator, stopwatch, notepad, automatic keyboard lock, world clock, currency conversion, converter (exchange rate, temperature, weight, and other scale) Agreement (monitoring stock and other securities) Java game Support for J2ME technology designed for small consumer electronics (Java2 miniature version) built-in Bluetooth, sending and receiving E-mail 2. Sony Ericsson T68i
Sony Ericsson T68i
Network Type: GSM900 / 1800 / 1900MHz GPRS Color: Ice Silver Blue Size / Volume: 100 × 48 × 20mm Call Time: 3-12 Hours Standby Time: 195-390 Hours Optional Color: Black, White Weight: 84g Attors: Lithium battery (700mAh), charger
Main functions: Built-in antenna WAP 1.2.1 browser, navigation lever, image tablecloth 256 color color screen, screen size 34 × 28mm, resolution is 101 × 80 PIXELS wireless transfer belonging security protocol level three WTLS Class 3 and WTLS Class 1 / 2/3 and SIGNTEXT Security support SMS, EMS and MMS, MMS multimedia SMT send can be available pictures and sounds POP3, IMAP4, and SMTP email client mobile phone Physical phone book Can store 510 sets of phone book ( SIM card) GPRS wireless High-speed Internet, up to 64200bps (Class 4, 3 1 TimeSlot) built-in infrared, Bluetooth function personal album, electronic business card built-in nine games support XHTML language support MPEG-4 format dynamic image, WBMP, GIF, JPEG and other pictures Format Memo By RS232 transmission line synchronous and computer do data Update Sony Ericsson Communicam MCA20 Maximum Save 14 640x480 pixels, or 200 80x60 pixels 3. Motorola E360 Motorola E360
Network Type: GSM900 / 1800MHz GPRS Color: Maria Silver, Cold Moon Blue Size / Volume: 115.2 × 44.5 × 20.8mm / 79cc Call Time: 150 minutes Standby Time: 70-150 hours Optional Color: Black, White Weight: 90 KM attachment: lithium battery (600mAh), charger
Main function: Built-in antenna WAP 4 to the guided key color screen: 4096 colors, resolution 128x96 pixels can be replaced with casings [front panel] Customize fast function EMS screen news, colorful animation pictures, pleasing music Enter [T9 Enhancement ITAP], Chinese short message send and receive fun dynamic image type use interface, add to play fun date clock, built-in vibration, recording voice dial [10 groups], optional ringtone [27 kinds] Sanhe string ringtone, self-edited Ringtones, download ringtones [5 groups] wireless download features [download ringtone, animation download] Scenario: Different situation design, can be replaced with context to replace the phone background color and ringtone phone book can be stored [300] Phone 3 groups built screens Protection procedures and 5 sets of tablecloths, downloads, 2 sets of screen savers and 5 tables of tables, standby animations, animation screensaver, J2ME built-in game [5]: car. Memory test. Deep water bomb. Labbit. Magic Gem EFR, STK Service Alarm Clock, Calendar, Calculator, Notepad, World Clock, Currency Convert SMS QQ Function Seven, the problem of MMS exists today, multimedia SMS has been seen as a new profit point, but it To develop like today's text messages, it is not so easy, and there are many problems to solve. 1. Network issues preferred to build a multimedia information center for MMS business requirements --- MMSC, MMSC usually requires applications to various second generations and three generations of networks. MMSC usually exists as an independent network element, which is relatively independent with the existing NE, and therefore, in the process of evolving from the second generation mobile communication network, MMSC should be smoothed, so A lot of benefits can be brought to operators in terms of maintaining the stability of network operation and protection of investment. In implementation, multimedia messaging services do not depend on which generation mobile network, which can be provided in 2G, 2.5G, and 3G mobile networks. However, due to the service transfer content on network bandwidth, transmission speed, and mobile terminals, only the features of MMS business can only be given to the 3G network, and users may enjoy the benefits of MMS. Of course, MMS can use 2.5G GPRS network, but whether MMS adapts to 2.5G network is still unknown. This brings a lot of pressure to the network operators, and it has brought great pressure to the development of 3G. From the situation of currently trial operation, MMS does not have a good interconnection, and the channel is blocked and there is a case where the SMS is frequently errors. When the user sends a short message, there often appear "SMS send failed" tips, In fact, sometimes the other party has received a short message, so that the sender has added the cost of repeatedly inadvertently increasingly. Therefore, mobile operators should update their technology in time to solve the problem of channel clogging. 2. MMS principle and its restrictions and SMS, EMS, MMS also use "storage forwarding" transmission mechanism. The so-called "reunion" mechanism refers to the transfer of a SMS, and must be swap servers (in the MMS system, the server is named MMS Center, referred to as MMSC). The server determines that the text message is stored or forwarded to the destination. In the case of SMS, in the architecture of the MMS service system, Internet / Intranet (Internet / Internal Network) has become an important part. The MMS content service part is completely connected to MMSC through the Internet. Since the MMS is used along the "storage forwarding" mechanism of SMS, the MMS also delays even the information is delayed. But the integration with the Internet has made MMS's service types more rich, and SP and operators have lower operating costs in terms of content and services. In addition, MMS uses a SMIL language similar to HTML to arrange SMS content. This allows SP to develop a simple tool to develop graphic and equipped with MMS SMS for sound or sound.
Effectively reduce the production cost of MMS content. MMS can run in 2G, 2.5G, and 3G mobile networks. Therefore, the size of the MMS SMS is limited by the network transmission rate. On the current GPRS network, 3GPP-related specifications It is recommended that the size of a MMS SMS should not exceed 30kB, soon, it is expected to increase to 100KB. Such a small single capacity determines that MMS is unlikely to play songs such as playing a MP3 sound quality, watching a movie such a movie. Its main application range will limit the photos, play no more than 10 frames, 5 seconds, and the video is similar to PowerPoint documents, and so on. 3. Compatibility Issues Now there are many mobile phones that support EMS on the market. They also support MMS, and different brands of mobile phones are often unable to send pictures and sounds with each other. The pictures and sound formats supported by each brand phone are different, which greatly limits the popularity of MMS. So, is MMS to have a solution? In February this year, Nokia, Ericsson, Motorola, Siemens, Logo, CMG, etc., leadership manufacturers, such as "MMS Conformance Document" ("MMS Consistency Document"). This document specifies the basic format of the content in the MMS. According to this document, the picture format is specified as JPEG, GIF and a special BMP format, and the picture is up to 160 × 120 pixels. The sound format of MMS is unified as AMR format, and AMR is proposed by the European Communications Standardization Committee and is used by 3GPP. It is the most widely speech format in the mobile communication system. MMS also uses this format as a sound standard. Currently, the AMR converter provided by Ericsson can easily convert the sound files in the WAV format to WAV files. (This tool file can be downloaded after http://mobilityworld.ericsson.com.cn/development/download_hit.asp.) Overall, MMS has passed the major manufacturers during the start of the EMS phase. A wide range of discussions. Late a certain basis for its compatibility. In terms of ordinary MMS applications, there should be no problem with interoperability between different brands of mobile phones. However, it is inevitable that various manufacturers will launch special content services in custom formats. The services of this type will inevitably be like EMS, and can only use the same brand's mobile phone. 4. Mobile phones have the limitations of MMS must take into account the problem of mobile phones, and mobile phones have a large obstacle effect on MMS. (1) Currently, although a few manufacturers have launched a color screen mobile phone that supports multimedia business, it is difficult to accept by consumers from all aspects of price, style, and must be accepted by the majority of low-end users, especially the prepaid users. Mobile phone, MMS can have a wide range of users. The current price of MMS mobile phones is too high, exceeding the abilities of most users. If the mobile phone manufacturer does not produce low price, new mobile phones, which will seriously hinder the large area promotion of MMS. It is estimated that at least 2004 may be a relatively large scale and change. (2) If the screen of the two sides is different, the SMS center will make the corresponding processing, which will affect the quality of the information. In addition, the problem of mobile screen is also like WAP wireless Internet access. Since the screen is still limited, the photo taken by the digital camera is also limited by the screen. If it is a video clip, the affected impact is greater. (3) Mobile phone settings are also more troublesome in terms of the use of mobile phones. Through China Mobile and China Unicom customer service center feedback, more than 75% of users think that mobile phone settings are an obstacle, so it is necessary to reduce the use threshold. From the development of SMS, it can be seen that users can enjoy this service without replacing mobile phones, and it is difficult to imagine that most users will replace their mobile phones in order to use MMS business, especially for low-end users.
(4) Now the mobile phone is getting less and smaller is the trend of mobile phone development. Then the phone's keyboard is getting smaller and smaller. Do people "adapt" this small keyboard? Especially for developed countries, such as the United States, Canada, etc. I 3 Mobile has done such a survey: "Do you want to access information and communications through the way of mobile devices?" The results show that most people, especially the Americans don't like to use small mobile phone keyboards, if they must When you use SMS services, they prefer to use the computer to send this text message. And for such mobile phone users, using mobile phones, most interested is not using mobile phones to send text messages, but mobile call services for mobile phones. So this investigation undoubtedly brought a heavy blow to the development of MMS. For users of more backward developing countries, it is still interested in the current SMS, whether it is interested in MMS, or unknown. MMS's terminal equipment will not be in a glance, and development may not be very fast. Therefore, in the early stage of the MMS business, considering the gradual launch of multimedia business phones, the first user group is high-end business user group, but with a large number of listed support for multimedia business mobile phones, young users have gradually recognized Business, this can be seen from the current Internet e-year, logo download, MP3 music, RealPlay, and other multimedia applications, these applications can be transplanted to mobile networks through multimedia information gateways. 5. The MMS billing problem is whether MMS can achieve the success of people's expectations, and is also closely related to the tariff strategy of mobile farmholders. An important factor in SMS business can succeed is its low price, which is much cheaper than calling. Send a text message is just 0.1 yuan, even temporarily without fees, and the most direct result is in addition to inspiring huge market potential, it also caused the user to generate recognition and form "pay culture." Is there such a good thing in the age of MMS SMS? Obviously it is not. Because MMS SMS wants to handle and transmit data, it is much more much higher than that of plain text, the MMS's tariffs not only include the cost of line transfer, but also a copyright fee of many pictures, video and other aspects. Therefore, the tariff of the MMS service should be diversified, and it may be necessary to charge according to the content transmitted by the user. So the charge will not be so cheap like now SMS SMS. There is an analysis that reasonable prices should be 3 or 4 times more than SMS, but there are signs that China Mobile MMS will exceed this standard. MMS is as high as SMS, consumers must pay for money, so the cost is still a problem. In terms of tariff, operators should be careful, do not brush, consumers pursue fashion enthusiasm. Mobile operators should make a set of simple, clear MMS price policies. 6. Interconnection issues Due to the MMS standard, this will make a lot of work between mobile terminals to solve interoperability. Extreme examples, even in the GPRS system, there may not be possible to send information between two different brands of phones. At the same time, MMS intercommunication between China Mobile and China Unicom can not be resolved in the short term. At the beginning of the year, eight mobile device suppliers, including Ericsson, Nokia, established an MMS interoperability forum to promote the development of MMS globally, and the main work is to solve interoperability between MMS phones and compatibility issues. 7. Network merchants hesitation because MMS will encounter various problems, so companies that hope to use MMS to make money have also taken "waiting" attitude, such as i3 Mobile, think that although MMS enters our life is inevitable. But if you go deep into your heart like SMS, you need a longer process, let alone, you have to complete SMS, EMS, completely occupy the entire market. So not only I3 Mobile has such an idea. Developers as MMS service equipment will definitely slow down, and will gradually develop new services according to market demand, and will not be over.
Michael Forbes, Vice President of I3 Mobile Mastering, MiChael Forbes, believes that now is the urgent need to pay attention to existing services and have markets. Therefore, the network merchants are not very positive, and will directly affect the development of MMS. 8. There is an analysis of the problem of end users to analyze that SMS's habit users are directly equivalent to the MMS user group, and it is not easy to optimize. Because SMS is currently useful for inexpensive information, MMS is embedded in a higher level of application, establishing a key user base necessary to conduct interpersonal MMS communication, at least one and a half years. The maturity of the MMS market still takes a lot of time. 9. The problem of the content of the service content is also a big problem that cannot be ignored. MMS has a personalized feature that must provide rich information content to attract users. To drive the successful application of MMS, you must rely on three aspects: entertainment, graphics, point-to-point application. To allow end users to share entertainment and graphics information with others: Willing to use existing content yourself to create multimedia news; would like to download a variety of MMS content, such as sports pictures, cartoons, entertainment, etc., so that MMS can be used. Industry insiders said, although the current technology and infrastructure construction is not a problem, MMS still lacks substantive service content. The MMS's largest feature is to support multimedia functions. In addition to delivery between mobile phones, the transfer mode can also be transmitted between the phone and the computer. Obviously operators have draws a good application prospect, but content developers have not launched how much attractive features and is confident in this. If multimedia is just a simple superposition, plus a cumbersome manner, it is impossible to win the gather of the consumer. Moreover, the details of the MMS value-added business today are still unclear, and the user is unclear about how to order business, how to cancel business. In addition, the interface to the value-added business is not determined that the Standards organization is still developing, which will cause the MMS value-added business to carry out the initial period of slowness. In short, there are many reasons for affecting MMS. So whether the development of MMS is fierce? In fact, the new things are inevitable in replacing the old things, and it is also a trend of history. However, if MMS wants to occupy the entire market, it may still have a long time, slowly wait! Eight, the future of MMS has so much advantages in MMS, then its future is not anger. There are still many people who express optimistic on MMS, Ericsson, Nokia, Motorola, Siemens, CMG, Comverse Technology and Logica, the world's largest 7 mobile phone manufacturers and SMS service equipment manufacturers, determination together, develop and promote The development of MMS makes it a new favorite in the wireless world. Simon Buckingham, CEO of Research Institutions Mobile Streams, said that like the operating system on the PC is the same as the Windows transition from DOS, MMS will be an important milestone from text mode to multimedia mode. In general, SMS revenue accounts for 10% of the total operator's total income. Therefore, the prospect of multimedia SMS will also be very optimistic. From the existing cases, KDDI as an example, in the early days of launching multimedia SMS, users increase more than 3 million. Japan's original third largest operator J-Phone has launched the SHA-MAIL picture mail service in a short period of time only to NTT. It is important to see how important information services, especially multimedia information services, especially multimedia information services. It is expected that the MMS phones produced later have a color screen and support high-speed network. This allows users to transfer photos between digital cameras and mobile phones, so users can send photos to an email user or other mobile phone users who support MMS standards. With the development of technology, it is entirely possible with MMS instead of e-mail.
At that time, the user will not be limited by the time and place, and you can receive an email at any time. In short, the MMS mobile phone will bring users a new mobile phone communication method to fully feel the fun of communications. So, should mobile multimedia services want to succeed, depends on what? We can compare a chair for a three legs, there are three aspects: one of course the network, one is the terminal, the most critical is the application. ◆ GPRS is the "General Packet Radio Server" in English, is a new type of packet data transfer network introduced based on the existing GSM network, which is a recognized 2.5-generation mobile communication technology. The inevitable link evolves from the GSM to the 3G system. Enable: Real-time online, fast login, high-speed transmission, billing, online call, two incorrectly, etc. Some said that GPRS is "Mobile Broadband", which is true, GPRS's theoretical transmission speed can reach 171.2kbps, the actual transmission speed is affected by network coding mode and terminal support, its access speed is about 30kbps --- 40kbps, speed The improvement makes multimedia applications possible. The GPRS network is charged in accordance with the number of customers receives and transmits the packet. If there is no data transmission, even if it is hung online, it is not charged. ◆ Mobile operators also need a wide variety of mobile terminals while launching new network service services, and meets the needs of different customers. So use the GPRS business, of course, you need to support GPRS. There are more than 10 GPRS phones on the market. From the terminal, you can see several obvious trends: color screens, upgrades with digital cameras, audio technology, based on Java technology, multiple browsers, etc. These new trends will become reality in the second half of this year. ◆ The network is open, and the terminal equipment has also gradually enriched, then GPRS-based applications become the key to the profitability of operators. Currently, "killer application" on GPRS is the multimedia information service service (MMS). At China Mobile's "Dream Network" 2002 mobile Dream Network business show, China Mobile and Hong Kong CSL use Nokia 7650 mobile phone to demonstrate an exciting new generation of multimedia information services, including photos and multimedia information. Intermittence. The development of MMS will experience two phases: The first phase will focus on the terminal of the terminal on the terminal. Even if the value-added business is carried out, the terminal will occupy the main part of the MMS traffic like SMS as SMS. The second phase is the development period of the value-added application of MMS. In the early days of MMS value-added business development, it is mainly a variety of still graphics: such as pictures, photos, screensavers, greetings, ringtones, etc. Through these applications, users develop habits downloaded from the wireless network, expressed in a variety of ways such as graphics, animation, sound, and no longer text. On this basis, provide daily news and entertainment, add interactive cartoon, intelligence tests, etc., allowing users to experience colorful content and services on traditional Internet on wireless networks, MMS pair ◆ final The ability of users to shoot, edit, and send photos allow users to enhance personal communication by rapid sharing information. In addition, as a convenient commercial information exchange tool, it can also greatly improve the user's work efficiency. Other applications, such as downloading local city maps during travel or receive images or plan views in the meeting, will enable users to be able to retrieve over individual and commercial life. Using terminals to terminals and terminals to email functions, MMS can also be used as a virtual email client that allows users to overcome many shortcomings of traditional emails, such as software complex, and limited access methods.
◆ Network Operations Company can increase the air time to enable users to use the network more fully, realize service differentiation, and improve user loyalty - all of this is a key factor in improving network operational revenue. This new information transfer platform will make full use of GPRS and WCDMA broadband technologies to make MMS services more widely. ◆ Services and content providers to speak multimedia information applications will promote new business and content. The diversity of new business and demand for new content will ensure that the benefits of service and content providers continue to grow. From a long-term perspective, MMS's development is inevitable, but like a fixed network broadband application, this market requires operators and every link in the value chain to cultivate the market and users, rather than "one night. The process of seeing efficiency. That is, the user's demand for MMS is huge, and the development of the business will depend on operators and the effectiveness of the parties. If you want to develop the MMS business, you must have a good business model, attract more industries and more traditional enterprises to enter this area, only all links work together to make this business truly develop, users can get more good service. At present, MMS is standardizing. After the MMS development is complete, the following format will be supported: image - JPEG, GIF89A, WBMP Video - Teu-Th.263, MPEG4 (Simple File) Audio - MP3, MIDI, WAV, AMR / EFR (for voice) believes that with MMS standardization completion and has a large number of mobile phones with MMS features, MMS will enter the public life with 3G networks. The merchant believes that at that time, with the demand for video display, video SMS communications will appear in the way of value-added services, all business opportunities! Nine, multimedia SMS MMS FAQ 18 Solution 1. What is Multimedia SMS Service (MMS)? MMS is the abbreviation of Multimedia Messaging Service, Chinese meaning is a multimedia SMS service, which is the latest business of standard development of multimedia information (WAP-206 and WAP-209) according to 3GPP standard (3GPP TS 23.140). Its biggest feature is to support multimedia functions, also known as "GSM384", because this technology enables "global pass" data rate from current 9.6kbps to 384kbps. With the support of the GPRS network or CDMA2000 1X network, the WAP wireless application protocol is vectively transmitted video clips, pictures, sounds, and text. Support voice, Internet browsing, email, conference television and other high-speed data services, multimedia information services can realize instant mobile phone ends, mobile terminals to the Internet or Internet to mobile terminal multimedia information transmission. 2. How many multimedia SMS can be stored in multimedia mobile terminals? Different styles of mobile phone terminals are different. It is mainly to watch the size of the phone terminal and the size of the content file (including pictures, sounds, etc.). 3. How big can a standard multimedia SMS? According to 3GPP standard, general multimedia SMS is at least 30K, and Ericsson's system can be 100K. 4. What is the relationship between MMS and GPRS, 3G? 3G, GPRS and GSM are all kinds of networks. Some people have metaphor: GSM is a common road, GPRS is a highway, 3G is a wider highway. MMS is an application, just like running on the road. In the 3G network, MMS speed will be faster, which means that more information coverage is more diverse or more complicated. 5. Map is a WAP browsing app? MMS does not use WAP browsers in any way.
It is a kind of information transfer, not browsing applications. MMS like SMS, it needs its own user interface. 6. What is the relationship between WAP and MMS? WAP is the foundation of MMS. MMS utilizes WAP features such as WAP PUSH, UAPROF, and Large Data Transfer. 7. What is the standardization of MMS? The WAP Forum and 3GPP have been standardized to make it an open standard. The 3GPP specification defines the network architecture and general functions. The MMS specification of the WAP Forum defines information compression and application protocols. The transfer of MMS uses an existing transport protocol. 8. What is the multimedia SMS business? The multimedia SMS service is based on 3GPP TS 23.140 and WAP-206, WAP-209 standards. 9. Can MMS have to have globally? There is a sign of roaming agreements between countries. 10. The current mobile phone supports those media formats? The MMS information is compressed in standard mode, so the receiving one can determine the content format it does not support, and processes in a controlled manner. In order to achieve interactivity, several major mobile communication equipment manufacturers in the world have jointly intend to list the minimum set of content formats that MMS mobile phones can support. In MMS's SLIDES, the picture supports GIF87A, GIF89, WBMP, Base Line Jpeg with JFIF As The Exchange Format. The picture is best to use 256 colors, so the mobile phone is better. In MMS's Slides, the supported character sets are US-ASCII (IANA Mibenum 3), UTF-8 (IANA Mibenum 100), UTF-16 (IANA Mibenum 1000) with explicit byte Order Mark (BOM). In terms of text, the supported character set is ISO 8859-1. In terms of sound, support AMR, IMELODY ringtone. 11. Mobile phone terminals of different manufacturers can send multimedia SMS to each other? can. 12. When the SMS is peak in the data, it will have a long time, whether the MMS is the same situation? MMS is running on the GPRS online, the network speed is 100K per second, while the speed of SMS is about 600 bytes per second, and the MMS is much faster than SMS. But there will be congestion during business busy or emergencies. 13. How fast is the transmission between MMS in Mobile Phone → MMSC → Mobile Phones? The transmission speed of the MMS depends on the information size and carrier network. If the information size is 30KB, the transmission carrier is a GPRS network with a net capacity of 10kbit / s. The time required is T = (30kb * 8bit / b) / 10kbit / s = 240kbit / 10bit / s = 24s, total transmission time For 48 seconds. 14. Can I send MMS information to non-MMS mobile phones? Nokia Gateway (TGW) can provide non-MMS phones to receive multimedia information. When the TGW confirms that the receiving terminal is a non-MMS phone, it is the MMS information, which is temporarily present on a web page. Subsequently, the SMS notification is issued to the reception phone, prompting the web page. 15. What is SMIL? SMIL's full name is Synchronized MultiMedia Integration Language. It is a XML-based language that can make interactive multimedia SMS. SMIL allows the recipient to feel that reading multimedia SMS is like an automatic playback slide. 16. What is the cost of the end user sends a MMS information? The MMS information business billing standard is determined by the operator. At present, China Mobile's "MMS" business is priced at 0.90 yuan / article. At the beginning of the business, it is a preferential price of "1 to send 1". The actual price is 0.60 yuan / article.
