UMTS: The third generation
UMTS adds Wideband Code Division Multiple Access (W-CDMA) radio access technology to GSM, offering greater spectral efficiency and bandwidth to mobile network operators. Other than EDGE, (IMT Single-Carrier, based on GSM) UMTS requires new base stations and new frequency allocations. Therefore Clear CinCom is often asked to assist in the implementation of a UMTS upgrade or audit of an existing GSM network.
The successor of UMTS as 3GPP standard is Long Term Evolution (LTE). An upgrade to LTE often requires less hardware changes while delivering higher data speeds. Nowadays, LTE is the upgrade of choice, with target speeds in the long run set to 100 Mbit/s in the downlink and 50 Mbit/s in the uplink. This is achieved using a next generation air interface based upon orthogonal frequency-division multiplexing. Read more about our LTE services.
In theory, UMTS supports data transfer rates of 42 Mbit/s when the HSPA+ protocol is added. Effectively, users can expect a transfer rate of up to 7.2 Mbit/s in the downlink connection. These speeds are significantly faster than the 9.6 kbit/s of a single GSM error-corrected circuit switched data channel, multiple 9.6 kbit/s channels in HSCSD.
Combined with HSDPA, also known as 3.5G, downlink transfer speeds are possible of up to 21 Mbit/s. The high data speeds of UMTS are most often used to provide mobile users with Internet access.
Contact us if you would like more information on the services we can provide related to UMTS networks.