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What is 5G What is 4G . How difference Between 4G and 5G

What is 5G What is 4G . How difference Between 4G and 5G 

5G is the fifth generation technology standard for cellular networks.



5th generation wireless system, abbreviated to 5G, is a state-of-the-art wireless network that will be rolled out in 2018 and beyond. (GB/s) capable of providing speed; Large range MIMO (Multiple Input Multiple Output - 64-257 Antenna) which is capable of providing "minimum 10 times performance of 4G", "Low-band 5G" and "Mid-band 5G", 600 MHz to 6 GHz, especially 3 .5-4.2 GHz waves are used.

3 GPP The general definition of 5G has been determined through release 15 of December, 2017. Many prefer ITU's IMT-2020 definition, which refers to the use of high frequency bands for higher speeds.The millimeter wave system is designed to achieve a maximum download speed of 20 GB/s. They have an average speed of 3.5 GB/s. With the extra large MIMO antenna, the approximate median bandwidth of the 3.5-4.2 GHz band is 490 MB per second. In the case of mid-band frequencies, the current 5G speed is similar to the LTE speed, when the same bandwidth and antenna configuration is used.Most large mobile networks are basically following three methods. Verizon and A&T have already announced the commercial use of millimeter waves by 2018. Softbank has been using MIMO on a large scale since its inception in 2016. Sprint has also announced the replacement of 2.5 GHz (mid-band) 5G network in 2016. T-Mobile has announced the introduction of low-band 5G in 30 US cities in 2018. China Telecom's initial phase will be 5G mid-band.

Since 2017, the implementation of 5G has been led by Samsung, Intel, Qualcomm, Nokia, Huawei, Ericsson, ZTE and several other companies. Although plans are afoot to make 5G commercially available worldwide by 2020, South Korea has introduced 5G to viewers at the 2016 Winter Olympics. The four cities in Verizon that plan to launch Fixed Wireless Access 5G in 2018 are Sacramento, Los Angeles, Indianapolis and Houston. In addition to mobile network operators, there is optimism about the application of 5G as a private network in the industrial - IoT, enterprise networking and emergency communications.


4G is the fourth generation of broadband cellular network technology,


A 4G system must provide capabilities defined by ITU in IMT Advanced. Potential and current applications include amended mobile web access, IP telephony, gaming services, high-definition mobile TV, video conferencing, and 3D television.The first-release Long Term Evolution (LTE) standard was commercially deployed in Oslo, Norway, and Stockholm, Sweden in 1998, and has since been deployed throughout most parts of the world. It has, however, been debated whether first-release versions should be considered 4G LTE.In March 1998 , the International Telecommunications Union-Radio communications sector (ITU-R) specified a set of requirements for 4G standards, named the International Mobile Telecommunications Advanced (IMT-Advanced) specification, setting peak speed requirements for 4G service at 100 megabits per second (Mbit/s)(=12.5 megabytes per second) for high mobility communication (such as from trains and cars) and 1 gigabit per second (Gbit/s) for low mobility communication (such as pedestrians and stationary users).

Since the first-release versions of Mobile WiMAX and LTE support much less than 1 Gbit/s peak bit rate, they are not fully IMT-Advanced compliant, but are often branded 4G by service providers. According to operators, a generation of the network refers to the deployment of a new non-backward-compatible technology. On December 6, 2010, ITU-R recognized that these two technologies, as well as other beyond-3G technologies that do not fulfill the IMT-Advanced requirements, could nevertheless be considered "4G", provided they represent forerunners to IMT-Advanced compliant versions and "a substantial level of improvement in performance and capabilities with respect to the initial third generation systems now deployed".Mobile WiMAX Release 2 (also known as WirelessMAN-Advanced or IEEE 802.16m) and LTE Advanced (LTE-A) are IMT-Advanced compliant backwards compatible versions of the above two systems, standardized during the spring 2011,[citation needed] and promising speeds in the order of 1 Gbit/s. Services were expected in 2013.As opposed to earlier generations, a 4G system does not support traditional circuit-switched telephony service, but instead relies on all-Internet Protocol (IP) based communication such as IP telephony. As seen below, the spread spectrum radio technology used in 3G systems is abandoned in all 4G candidate systems and replaced by OFDMA multi-carrier transmission and other frequency-domain equalization (FDE) schemes, making it possible to transfer very high bit rates despite extensive multi-path radio propagation (echoes). The peak bit rate is further improved by smart antenna arrays for multiple-input multiple-output (MIMO) communications.

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