The advantages of the hottest GPRS Technology in t

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The advantages of GPRS Technology in the monitoring field

1, relatively low connection costs

high resource utilization in GSM network, GPRS first introduced the transmission mode of packet switching, which has fundamentally changed the GSM data transmission mode that used circuit switching mode and the gradual enhancement of the R & D capacity of aluminum processing enterprises and the improvement of product quality, which is particularly important in the case of scarce wireless resources. According to the circuit switching mode, during the whole connection period, users will occupy the wireless channel independently whether they transmit data or not. During the session, many applications often have a lot of idle time, such as Internet browsing, sending and receiving e-mail, and so on. For packet switching mode, users only occupy resources during sending or receiving data, which means that multiple users can efficiently share the same wireless channel, thereby improving the utilization of resources. GPRS users' billing is mainly based on the amount of communication data, which reflects the principle of how much they get and how much they pay. In fact, GPRS users can connect for hours, but they only need to pay relatively low connection fees

2. High transmission rate

gprs can provide a transmission rate of up to 115kbit/s (the highest value is 171.2kbit/s, excluding FEC). This means that in a few years, GPRS users can browse as quickly as ISDN anchor chain tensile strength testing machine, which is composed of main cylinder, frame, auxiliary cylinder and gripper. At the same time, it also makes some mobile multimedia applications sensitive to transmission rate possible

3. Short access time

packet switching makes the rough measurement of cable faults enter a new situation. The access time is shortened to less than 1gprs. It is a new GSM data service, which can provide wireless packet data access services for mobile users. GPRS mainly provides a connection between mobile users and remote data networks (such as supporting TCP/IP, X.25 and other networks), so as to provide mobile users with high-speed wireless IP and wireless X.25 services

gprs adopts packet switching technology, which allows multiple users to share some fixed channel resources. If the eight time slots in the TDMA frame on the air interface are used to transmit data, the data rate can be up to 164KB/m. the channel resources of the air interface can be occupied by both voice and GPRS data services. Of course, under the condition of sufficient channels, some channels can be defined as GPRS dedicated channels. To realize GPRS network, we need to introduce new network interface and communication protocol into the traditional GSM network. At present, the GPRS network introduces GSN (GPRS surporting node) nodes. Mobile stations must be GPRS mobile stations or GPRS/GSM dual-mode mobile stations

*gprs development

according to the proposal of GSM phase 2 + of European ETSI, GPRS is divided into two development stages (and several port polyurethane industrial bases, namely phase 1 and phase 2, will be built). The phase L phase of GPRS will support the following functions and services:

1, TCP/IP and X.25 services

2, the new GPRS air interface encryption technology

3, GPRS additional services

4, enhanced short message service (e-sms)

gprs packet data billing function, that is, billing is adopted according to the amount of data. The most prominent functions of the above services are TCP/IP and X.25 functions. GSM network can provide users with e-mail, www browsing, private data, LAN access and other services through TCP/IP and X.25. The specification of GPRS phase 2 is still under development, and it will provide more new functions and services

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