Basic 5g technology

1. 5G
TECHNOLOGY
BY:
NAVEEN KUMAR M

2. WHAT IS 5G ?

3. 5G
5G is the fifth generation of cellular networks.
5G has been designed to meet the very large growth in data and connectivity of
today’s modern society.
5G is based on OFDM (Orthogonal frequency-division multiplexing).
Latency of 5G will be as low as 1 millisecond.

4. The Key
technologies
Used for Working
of 5G

5. HISTORY OF 5G :
Apr. 2008
In April 2008, NASA partnered with Geoff Brown
and M2Mi (Machine-to-
Machine Intelligence)Corp to develop a fifth
generation communications technology
approach.
2008
In 2008, the South Korean IT R&D program of
"5G mobile communication systems based on
beam-division multiple access and relays with
group cooperation" was formed.
Aug. 2012
In August 2012, New York University founded
NYU Wireless, a multi-disciplinary academic
research center that has conducted pioneering
work in 5G wireless communications.

6. Evolution of Cellular Networks

7. OFDM
Orthogonal frequency-division
multiplexing.
OFDM is a frequency-division
multiplexing (FDM) scheme that
was introduced by Robert W.
Chang of Bell Labs in 1966.
The subcarriers are orthogonal to
each other.

9. DIFFERENCE BETWEEN OFDM AND
FDM
• OFDM
• OFDM stands for Orthogonal
Frequency Division Multiplexing.
• In OFDM the Guard band is not
compulsory.
• The spectral effect is low
• FDM
• FDM stands for Frequency Division
Multiplexing.
• In FDM, Guard band is required.
• The spectral effect is high

11. 5G SPECTRUM
❖ 5G needs significant new harmonised spectrum so clearing prime bands should be prioritised
to meet market demand.
❖ So large quantities of new radio spectrum (5G NR frequency bands) have been allocated to 5G.
❖ For example, in July 2016, the U.S. Federal Communications Commission (FCC) freed up vast
amounts of bandwidth in underused high-band spectrum for 5G.
❖ In March 2018, European Union lawmakers agreed to open up the 3.6 and 26 GHz bands by
2020.
❖ 5G speeds will range from 50 Mbps to over 10 Gbps. The fastest 5G speeds would be in the mm
Wave bands and can reach 10 Gb/s with carrier aggregation and MIMO(Multiple-
input/multiple-out).

13. Beamforming
Beamforming or Spatial filtering is
a signal processing technique used in sensor
arrays for directional signal transmission or
reception.
Beamforming is a technique that focuses a wireless
signal towards a specific receiving device.
There are two kinds of beamforming :
Digital and Analog.

14. Beamforming
Digital BF
• Digital beamforming involves
sending the data across multiple
streams (layers)..
Analog BF
• Analog beamforming shaping the
radio waves to point in a
specific direction.
• The analogy BF technique combines
the power from elements of the
antenna array in such a way that
signals at particular angles
experience constructive interference,
while other signals pointing to other
angles experience destructive
interference.

15. 5G TECHNOLOGY
ADVANTAGES
• Higher Download Speed.
• High resolution and bi-
directional large
bandwidth shaping.
• More bandwidth.
DISADVANTAGES
• Battery drain on devices.
• Initial costs for rollout are high.
• Range of 5g is smaller compared to
4g.

17. MYTHS
BASED ON
5G
There is a long history of fear and anxiety
surrounding wireless signals that predates 5G technology.
That wireless technologies caused numerous
conditions from ADHD(Attention deficit hyperactivity
disorder) to heart diseases and brain cancer.
As the introduction of 5G technology coincided with the
time of ”COVID-19 pandemic”, several conspiracy theories
circulating online posited a link between ”SARS-CoV-2” and
5G. This has led to dozens of arson attacks being made on
telecom masts.