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2020 (5G tech)5G Wireless Cell Phone
Posted 11 November 2011 - 07:15 AM
The development of the 2G (GSM) and 3G (IMT-2000 and UMTS) standards took about 10 years from the official start of the R&D projects, and development of 4G systems started in 2001 or 2002. However, still no transnational 5G development projects have officially been launched, and industry representatives have expressed scepticism towards 5G.
New mobile generations are typically assigned new frequency bands and wider spectral bandwidth per frequency channel (1G up to 30 kHz, 2G upto 200 kHz, 3G upto 5 MHz, and 4G upto 40 MHz), but sceptics argue that there is little room for new frequency bands or larger channel bandwidths. From users point of view, previous mobile generations have implied substantial increase in peak bitrate (i.e. physical layer net bitrates for short-distance communication). However, no source suggests 5G peak download and upload rates of more than the 1 Gbps to be offered by ITU-R's definition of 4G systems. If 5G appears, and reflects these prognoses, the major difference from a user point of view between 4G and 5G techniques must be something else than increased maximum throughput; for example lower battery consumption, lower outage probability (better coverage), high bit rates in larger portions of the coverage area, cheaper or no traffic fees due to low infrastructure deployment costs, or higher aggregate capacity for many simultaneous users (i.e. higher system level spectral efficiency). Those are the objectives in several of the research papers below.
Posted 12 November 2011 - 01:50 AM
Posted 30 December 2019 - 08:55 PM
This was probably a spam bot, but otherwise: very interesting post! Neat to see that 5G predictions were accurate.
And remember my friend, future events such as these will affect you in the future.
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