Take up a space first, and then disassemble it in detail later
The main concern is the difference with GSM, especially how GRPS supports data transmission by adding channels and packet switching systems, and how to increase the rate of data transmission through new modulation and demodulation technology!
1. GSM is the abbreviation of Global System for Mobile Communications
2. GPRS is the abbreviation of General Packet Radio Service (General Packet Radio Service)
3. GPRS is a packet data bearing and transmission service developed on the basis of the GSM system.
4. The most fundamental difference between GPRS and GSM system is that GSM is a circuit switching system , while GPRS is a packet switching system.
5. GSM can only transmit data in the form of short messages, and cannot achieve "real-time online" and "pay-as-you-go". Compared with GSM, GPRS has obvious advantages in carrying and supporting data services. It makes more effective use of wireless network channel resources. It is especially suitable for intermittent, non-periodic data transmission, small amount of data transmission, and large-capacity data infrequent transmission. Wait.
6. The technical advantages of GPRS are also manifested in the following aspects: high transmission rate; high resource utilization; short access time; always online; support IP protocol and X.25 protocol; reasonable fees, etc.