Che significa connessione dati UMTS Hsdpa?

Che significa connessione dati UMTS Hsdpa?

I protocolli supportati L'UMTS supporta una velocità massima teorica di trasferimento dati di 42 megabit al secondo per le reti che hanno già implementato il protocollo HSPA+ (High-Speed Packet Access).

Cosa vuol dire GSM?

GSM è l'acronimo di Global System for Mobile communications e indica il sistema di seconda generazione adottato per le comunicazioni telefoniche mobili. ... Il sistema GSM usa la gamma di frequenze compresa tra 9 MHz.

Cosa vuol dire Wcdma?

In telecomunicazioni con il termine W-CDMA (Wideband Code Division Multiple Access) si indica una particolare tecnologia di accesso multiplo al canale radio per reti cellulari di terza generazione (3G).

What does UMTS stand for?

• UMTS (Universal Mobile Telecommunications Service) is a third-generation ( 3G) broadband, packet -based transmission of text, digitized voice, video, and multimedia at data rates up to 2 megabits per second ( Mbps ). UMTS offers a consistent set of services to mobile computer and phone users,...

What is the UMTS air interface?

• UMTS combines three different terrestrial air interfaces, GSM 's Mobile Application Part (MAP) core, and the GSM family of speech codecs . The air interfaces are called UMTS Terrestrial Radio Access ( UTRA ). All air interface options are part of ITU 's IMT-2000.

What is the difference between UMTS and edge?

• The technology described in UMTS is sometimes also referred to as Freedom of Mobile Multimedia Access (FOMA) or 3GSM. Unlike EDGE (IMT Single-Carrier, based on GSM) and CDMA2000 (IMT Multi-Carrier), UMTS requires new base stations and new frequency allocations.

What is the difference between UMTS and GSM phones?

• UMTS phones can use a Universal Subscriber Identity Module, USIM (based on GSM's SIM card) and also work (including UMTS services) with GSM SIM cards. This is a global standard of identification, and enables a network to identify and authenticate the (U)SIM in the phone.