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Principles |
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GPRS is Packet-Switched:
GPRS or General Packet Radio Service is a packet-switched technology based on GSM. As shown in the animation, the radio and network resources are only accessed when data actually needs to be transmitted between the mobile user and the network. Please note that in between alternating transmissions, no network resources need to be allocated. Compare this to the circuit-switched transaction where resources are being accessed permanently, regardless of whether or not transmission is actually talking place. Therefore, packet-switching saves resources, especially in the case of bursty transactions.
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