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3G's business and realize the technical basis of open


30 did not have a standard business, that is, most businesses can open in 2G/2.5G systems. The only difference is, 3G broadband high-speed transfer of data to its advantage to provide quality services to make business more with the ability to attract users, while business in the technology evolution process, to open more and more colorful. Mobile network operators can provide the main business of Internet-based business resides in the terminal's operations and value-added telecommunication network business, the author of the multimedia message, location positioning technology based on open industry and in the evolution of 3G Open Technology Business Development, presented his own research experience. Chinese papers League finishing. Multimedia services and the implementation of open technology infrastructure generally considered to be a combination of multimedia voice,[link widoczny dla zalogowanych], text and video services, ITU-T definition given is: has the integration, interaction and synchronization of business called multimedia services, where integration refers to the content data, multimedia and hypermedia information, script information and specific application information storage, transmission, processing, show the ability to; interactive means is in the human and business systems business systems between the ability to control is the ability of multimedia systems necessary; synchronization refers to the terminal multimedia show text, image, voice work synchronously . Multimedia services with the network data transfer bandwidth to carry out the increase and become prosperous together, in the cellular mobile communications, with broadband high-speed data transmission with the ability of commercial 3G systems for mobile multimedia applications open up a wide range of bottleneck constraints. Mobile Multimedia is divided into three types: 1. Streaming media; 2. Multimedia messaging, including MMS, ring tones, etc.; 3. Video. This section only in respect of 30 in the multimedia message service description is given based on open technology. 30 of the MMS service is SMS, 2.5G SMS that evolved on the basis of evolution. MMS conduct of business technology support system in the network operations center in the first set MMSC, MMS which is to carry out the core foundation of the business, which is mainly responsible for the MMS message store and process messages out of MMSC, to complete the network is sent by the text, images, sound and other multimedia messages composed of media formats. Multimedia Messaging Centre is divided into internal MMS Rs, ay,[link widoczny dla zalogowanych], and MMS Server. 3G core network associated with the exchange of the main functions of network elements from the MMS Relay to achieve through the WAP gateway,[link widoczny dla zalogowanych], for example, with the SMSC and the 3G-GGSN of the interconnection, the interconnection with the SMSO MMS accessibility because users need to make advance by SMS notification, MMS Relay messages in different information transfer between systems. It is between the server and the user agent to provide an integrated feature, and according to different types of network integrated different server. Necessary and possible, MMS Relay and MMS Server can be co-located can also be set separately, there are also other MMSC, MMSC and the MMSC connection with MM4 interface, which is defined by the 3GPP specification. Therefore, in the case of multiple carriers, as long as follow the development of the MM4 interface specification 3GPP, no multimedia messaging gateway, MMS inter-carrier service that can be carried out. Only been on all the above cases have set the standard operator MMS system, if a non-standard operators set up MMS system,[link widoczny dla zalogowanych], its interconnection with the MMSC systems need additional MMS Gateway, MMSC, and the gateway is located non-standard MMS systems. Described above is based on 3GPP R4 version. In the R5 version, directly defines the TCP / IP mode MMS. Another point of view, we should make a revised concept of MMS services. MMS is not only a business, but rather is a data transfer protocol, and further said. MMS is a large class of business. Some people say, MMS business is taking off on the basis of GPRS will be 30 in Moscow, this is the MMS business people expected and hope. MMS business also involves the development and changes to the mobile terminal or mobile phone, because the business development needs of MMS phones support MMS, if the terminal is not a MMS phone, it needs to send to the terminal multimedia system first SMS text message notification, then from the mobile terminal by way of WAP or WEB extract their own Internet MMS. But this is not a long-term method, MMS business conduct in general or both of MMS mobile phone when it is to be conducted. Location positioning technology business and its implementation based on open position location service in the 2.5G cellular mobile communication systems have been introduced, because of its promising, is still as value added in the 30 business Introducing a while. LBS (Location Based Service) business in general use in public safety, navigation, tracking services, location-based personalized information services and location-based billing services and so on. , For example, location-based personalized information services is that when a mobile user wants to know his / her current location near the regional shopping, entertainment and other position, he / she can send a service requests for information. People use location-based services a lot of time to carry out this business do not quite understand the complex underlying technical support. This article 30 of the WCDMA technology as an example of location-based services behind the technology base. WODMA defined in the R99 version of the three location positioning technology, they are: 1.CELL-ID; 2, OTDOA; 3.A-GPS. The realization of this principle is not to say. The following specific description is appropriate technical support network. WCDMA standard architecture consists of three parts: 1. The core network, 2. Radio Access Network; 3. Mobile terminal. 3GPP implementation of the provisions of the location positioning technology components of the network: radio access network side by the LMU (Location Mesurment Unit, position measurement unit) and SMLC (Servmg Mobite Location Oenter, Mobile Location Positioning Service) component. Which, LMU can be independently set can also be co-located with the Node B; SMLC can be set can also be set up together with the BNC, which are depending on the specific arrangements for equipment manufacturers. Core network side of the network element is a GMLC (Oateway Mobile Location Center, Gateway Mobile Location Centre), as the LBS server,[link widoczny dla zalogowanych], the client is linked with the LBS. Other core network elements MSC / MSC Server, HLR, SCP, and 3G-SGSN also required to have on the location of targeted support. The above network elements perform their duties, LMU responsible for the mobile terminal uplink signal measurement, measuring the results to SMLC location information used for its calculation. SMLC location of the user positioning service for the needs of QoS method selected from the three position into a location-based services provider. About the location of mobile terminal location information (latitude and longitude) or through the CS domain MSC packet domain of the 3G-SGSN is connected to the GMLC.GMLC for location-based services outside the gateway, through which access to the location of mobile terminal location information. GMLC features include user and client authentication, authorization, and SMLC delivery to the location information into latitude and longitude coordinates, the client and the user billing and to accept the client's request and the responses accordingly.
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