practical 15.pdf
- 1. Practical 15 : Make report working of GPRS. What Is GPRS? General packet radio service (GPRS) is defined as a mobile communications standard that operates on 2G and 3G cellular networks to enable moderately high- speed data transfers using packet-based technologies. General packet radio service (GPRS) is essentially a packet-switching technology that allows information to be transmitted via mobile networks. This is utilized for internet connectivity, multimedia messaging service, and other types of data transmission. GPRS is supported by GPRS cellphones, as well as laptops and handheld devices equipped with GPRS modems. How Does GPRS Work? GPRS adds several new essential features to aid the end-to-end transmission of IP- based data packets. The GSM standards created GPRS, which resulted in a structure with specified attributes, interfaces, and inter-network operations for roaming assistance. The SGSN (Serving GPRS Support Node) is a router that controls the locations of nearby stations and offers a packet transit interface to the GGSN portal. It is in charge of GPRS mobile device authentication, network registration, mobility management, and data collection on pricing for using the air interface. A gateway that connects to other data networks is the GGSN (Gateway GPRS Support Node). The GGSN is responsible for delivering an IP address to the mobile terminals throughout the connection. It connects to external networks as both a router and an interface. It comprises GPRS cellular routing information, which is used to route packets through the IP-based internal backbone to the appropriate Serving GPRS Support Node. The GGSN could also operate as a packet filter for incoming traffic and record pricing data related to external internet services. GPRS provides the services listed below: Broadcasting and SMS messaging
- 2. Cellular-based push-to-talk Presence and instant messaging Service for multimedia messaging Services such as point-to-point and point-to-multipoint Advantages and Challenges of GPRS Compared to the original GSM system, GPRS technology provides various perks and advantages to users and network providers. Companies commonly used this to create precise data capabilities using mobile communications technology. Let’s take a look at some of the benefits of GPRS. 1. Billing made simple When compared to circuit-switched services, GPRS packet transfer offers better consumer billing. When it comes to circuit-switched services, the cost is determined by the length of the connection. 2. Increased speed A significant advantage of the GPRS system is that it provides a higher data rate than GSM. GSM was designed to transmit data at approximately 14.4 kbit/s at first. Over the 2G network, GPRS, on the other hand, provided data speeds up to 86kbit/s. It made matters like streaming and gaming possible for customers. It allowed for monitoring in enterprises. 3. “Always-on” connectivity Another benefit of GPRS is that it is always available. A GPRS connection can provide constant Internet connectivity, quick messaging, and improved SMS transfers. It was also the fastest network ever seen when it was first launched. For example, with a standard Global System for Mobile Communications technology, somebody could transmit only 10 SMSs per minute. Disadvantages of GPRS 1. Limited cell capacity
- 3. GPRS is technically adequate for most IoT use cases, but not all. 2G or 3G with GPRS is typically a theoretically acceptable fit if all you need is slow, occasional data transfers. However, for data-intensive applications, the existing cell capacity of a system is impacted by GPRS. 2. Risk of slower speeds To achieve the maximum possible GPRS data transmission speed of 172.2 kbps, all eight timeslots should be taken over by an individual user with no error safety. The supported data rates (171.2/384 Kbps) are slower than the current wireless protocols such as HSPA, LTE, LTE-advanced, and so on. Applications of GPRS Communication Value-added services E-commerce Advertising Telematics and location-based services. Remote operations