ZyXEL P-2812HNU-F1 User Guide - Page 122
G Comparison Table
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Chapter 5 Broadband compose the network address. The prefix length is written as "/x" where x is a number. For example, 2001:db8:1a2b:15::1a2f:0/32 means that the first 32 bits (2001:db8) is the subnet prefix. 3G Comparison Table See the following table for a comparison between 2G, 2.5G, 2.75G and 3G wireless technologies. Table 15 2G, 2.5G, 2.75G, 3G and 3.5G Wireless Technologies NAME TYPE MOBILE PHONE AND DATA STANDARDS GSM-BASED CDMA-BASED DATA SPEED 2G Circuit- GSM (Global System for Mobile Interim Standard 95 (IS-95), the first Slow switched Communications), Personal Handy- CDMA-based digital cellular standard phone System (PHS), etc. pioneered by Qualcomm. The brand name for IS-95 is cdmaOne. IS-95 is also known as TIA-EIA-95. 2.5G Packetswitched 2.75G Packetswitched GPRS (General Packet Radio Services), High-Speed CircuitSwitched Data (HSCSD), etc. Enhanced Data rates for GSM Evolution (EDGE), Enhanced GPRS (EGPRS), etc. CDMA2000 is a hybrid 2.5G / 3G protocol of mobile telecommunications standards that use CDMA, a multiple access scheme for digital radio. CDMA2000 1xRTT (1 times Radio Transmission Technology) is the core CDMA2000 wireless air interface standard. It is also known as 1x, 1xRTT, or IS-2000 and considered to be a 2.5G or 2.75G technology. 3G Packet- UMTS (Universal Mobile CDMA2000 EV-DO (Evolution-Data switched Telecommunications System), a third- Optimized, originally 1x Evolution-Data generation (3G) wireless standard defined in ITUA specification, is Only), also referred to as EV-DO, EVDO, or just EV, is an evolution of CDMA2000 sometimes marketed as 3GSM. The 1xRTT and enables high-speed wireless UMTS uses GSM infrastructures and connectivity. It is also denoted as IS- W-CDMA (Wideband Code Division 856 or High Data Rate (HDR). Multiple Access) as the air interface. 3.5G Packetswitched HSDPA (High-Speed Downlink Packet Access) is a mobile telephony protocol, used for UMTS-based 3G networks and allows for higher data transfer speeds. Fast A. The International Telecommunication Union (ITU) is an international organization within which governments and the private sector coordinate global telecom networks and services. 122 P-2812HNU(L)-Fx Series User's Guide