Mobile Business Operation Support System Design and Implementation15704.doc

mobile business operation support system design and implementation abstract: with the development of mobile communication technology, mobile operators increasingly support platform will have to face 3g multimedia services, 3g multimedia services for this study the characteristics and requirements of mobile operators supporting the technology development of the platform was given based on softswitch platform access solutions and multimedia services for mobile operators to further enhance the expansion of support systems and reliability of a certain reference. keywords: mobile communications, operating systems, supporting technologies 1 introduction this research mainly in the mobile business operation support system for the 3g multimedia services platform and design changes needed to analyze the discussion to give some reference platform for building programs and technical guidance, and share with their peers. 2 3g multimedia services support platform requirements analysis 3g network support services and 2g networks have a greater change than from the basic voice service to multimedia business expansion, new business support system the characteristics of the business proposed new requirements: 2.1 business bundle number of 3g services, the spending habits of the user segment for customers, the introduction of a variety of bundled services to business and marketing package, business support systems needed to support business bundled packages sales. 2.2 more flexible billing 3g services to increase the requirements for qos, in addition to real-time billing of traditional billing model and by content, the business support system also needs to be one element of qos as billing. business support systems also need to adopt different business a long time , flow rate and frequency of use, etc. the billing billing .3 g collection point number, protocol complexity. business support system should be able to charge a unified yet flexible manner. 3 mobile business operation support system design and implementation analysis 3.1 softswitch technology-based business support platform 3.1.1 softswitch platform development with the computer and communication technology continues to evolve, through a public packet network carrying voice, data, images, has been an increasing number of operators and equipment manufacturers agree. in this business drivers and the trend of network convergence , the birth of the ngn (next generation network) model for next generation networks to achieve in the packet network, a distributed network. softswitch network management center tmn series integrated network management system to follow the standard design, is divided into network element management, network management and service level management and other functions. softswitch systems provide a variety of equipment manager, to achieve the devices local operation and maintenance functions, while the network management system can be based on snmp management protocol and telnet to achieve centralized management of all equipment, including the assignment of the relevant parameters. 3.1.2 platform multimedia services 3g multimedia services in the platform design and layout, using wcdma3g platform agreement, which set the wap gateway wcdma system, lcs platform for location-based services, mms, java platform, sms centers and gateways, streaming media servers, cdma2000 positioning system settings platform, java platform, multimedia, e-mail platform, streaming media platform, wap platform, video telephony platform, brew platform and the sms center and gateway. one of the most 3g service platform for different technologies can be shared, as follows: messaging system through the signaling network connected with the 3 3. wcdma, the sms system can be connected with the core network msc can also be connected through the gd interface to sgsn. cdma2000, the messaging system is connected only with the core network msc, as wcdma and cdma2000 different signaling protocols supported, 2 were set to be sms technology system. positioning service either through signaling network can be connected via ip network 3g network. as wcdma and cdma2000 network protocols supported by different, and wcdma, td-scdma and cdma2000 in the implementation of wireless location different way, 3 technology should be separately set. wap, java, mms, streaming media equivalent of business is conducted online population, they are on different network technologies support ip protocol is generic, as long as the load on the same ip platform, 3 technology allows business platform sharing. links to research papers download http:/ 3.2 operating platform designed for multimedia service access compared to the times in the 2g era of 3g mobile multimedia applications become mainstream, which is the charm of 3g. however, to achieve business and platform for multimedia data access, in the current 3g network platform is not so easy to achieve . to this end, this paper focuses on hsdpa (high speed downlink packet access) access of multimedia data in order to achieve 3g platform multimedia business operation support. the basic principles of hsdpa air interface in the r99 system, the data retransmission is done by the rnc is responsible for the data retransmission need to go via iub interface. retransmission cycle just play a long nodeb based on the rnc instructions to complete the physical layer coding, transmission function, nodeb itself basically does not have the physical ability to control and scheduling of resources, and in the hsdpa in the air interface in order to achieve greater throughput, the functions of the nodeb has been enhanced, in nodeb level introduces the physical layer retransmission and fast resource scheduling concept, through the air interface of the nodeb closer to the introduction of these had only been on the rnc only has the function, speed up the retransmission and the efficiency of the air resource scheduling. in order to achieve hsdpa, features, and better improve the mobile multimedia data in the platform involved, the physical layer specification requires the introduction of three new design of the physical channel: 3.2.1 high speed downlink shared channel (hs-dsch) in the downlink, the transport users business data. using a fixed spreading factor, due to the need for common channel, hs-scch and the associated dch reserve the available channel codes, so the maximum available number of channels is 15. transmission time interval defined to 2 ms (3 slots), far less than r99 specified 10 ms, 20 ms equal length. thus greatly reducing the data retransmission from the terminal and the time delay between the nodeb. 3.2.2 high speed downlink shared control channel (hs-scch) in the downlink, transmit hsdpa dedicated signaling transmission format and system resources, such as instructions for the use of fixed spreading factor sf = 128, each terminal can simultaneously monitor up to four hs-scch. high-speed dedicated physical control channel 3.2.3 (hs-dpcch) in the uplink, sending feedback channel information (such as channel quality indication cql) and the transport block to send confirmation message (carrying harq process requires the ack / nack information). user terminals by measuring the cpich received cql information, cqi the reporting period and mapped by network definition. nodeb through the user from the uplink dedicated control channel hs-dpcch in the feedback information is the users downlink channel conditions, and then nodeb based on the collection of all users of th