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.



GSM-R or GSM-Rail is the de facto international standard for wireless communication on the railway. The people of Clear CinCom have been designing and optimizing GSM-R networks since the emergence of the standard in 2000; we have helped network vendors and railway operators in numerous countries since to meet and exceed the performance standards of GSM-R. Specialized in GSM-R and gearing up for the future, Clear CinCom is at the forefront of the emerging Future Railway Mobile Communication system (FRMCS).

More information on the GSM Rail consulting services of Clear CinCom

LTE: the fourth generation

LTE, often marketed as 4G, is the most recent standard for wireless cellular communication. New modulation techniques allow existing networks (be it GSM/UMTS or CDMA) to be upgraded to LTE, increasing the speed with which data is delivered to mobile devices. LTE is the first truly global standard for mobile network communication, allowing download speeds up to 299.6 Mbit/second. 

More information on the LTE consulting services of Clear CinCom

Latest news

Clear CinCom presents unattended GSM-R probe solution with cloud-based analysis software

Dutch telecom consultancy Clear CinCom today presented its innovative solution for structural network monitoring on GSM-R networks: CCC Suite Data Probe. The offering consists of a hardware probe and a cloud-based software service for real time...

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