Get a deep dive into the spectrum options for 5G New Radio (NR) and understand how it enhances wireless communications. This video will explain the key features of 5G spectrum, including frequency ranges, bandwidth allocation, and innovations like carrier aggregation and bandwidth parts. Perfect for tech enthusiasts and professionals looking to explore the core of 5G technology.
What You’ll Learn:
* 5G Frequency Ranges: Understanding Frequency Range 1 (FR1) and Frequency Range 2 (FR2)
* Bandwidth Characteristics: Channel bandwidths from 5 MHz to 400 MHz
* 4G to 5G Spectrum Transition: How 4G spectrum is being reformed for 5G
* Spectral Efficiency in 5G: Smaller guard bands, LDPC and Polar Codes
* Carrier Aggregation: Aggregating up to 1 GHz of spectrum with multiple component carriers
* Bandwidth Parts in 5G: How bandwidth parts improve efficiency and save battery life
* Challenges & Solutions: Supporting devices with different bandwidth capabilities
Key Features Discussed:
* FR1 vs FR2: Learn about the two frequency ranges in 5G, including their applications and limitations.
* Carrier Aggregation: How 5G achieves higher data rates by aggregating up to 16 component carriers.
* Bandwidth Parts: Discover how 5G allows flexible use of bandwidth to maximize spectral efficiency and save energy.
* Advanced Channel Coding: The use of LDPC and Polar Codes in 5G for improved data and control channels.
* Evolution of Spectrum: The gradual shift from 4G to 5G spectrum allocation and utilization.
Whether you're a 5G enthusiast, a professional working in telecom, or someone who wants to understand the future of wireless communications, this video is for you!
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#5g #spectrum #5gnr #wirelesstechnology #CarrierAggregation #BandwidthParts #5gtechnology #telecom #FrequencyBands #NR5G #5gnetwork #5gauction #5grevolution #RAN #Radioaccessnetwork #5gran #5gcore #5garchitecture #4g #lte #telco #telecom #telecominfrastructure #telecommunications #3gpp #spectrumutilization #4gvs5g #4g5g #fr1 #fr2 #bandwidth #bandwidthparts #wirelesstechnology #wirelesscommunication #5gcoverage #5GCA #5gcarrier
What You’ll Learn:
* 5G Frequency Ranges: Understanding Frequency Range 1 (FR1) and Frequency Range 2 (FR2)
* Bandwidth Characteristics: Channel bandwidths from 5 MHz to 400 MHz
* 4G to 5G Spectrum Transition: How 4G spectrum is being reformed for 5G
* Spectral Efficiency in 5G: Smaller guard bands, LDPC and Polar Codes
* Carrier Aggregation: Aggregating up to 1 GHz of spectrum with multiple component carriers
* Bandwidth Parts in 5G: How bandwidth parts improve efficiency and save battery life
* Challenges & Solutions: Supporting devices with different bandwidth capabilities
Key Features Discussed:
* FR1 vs FR2: Learn about the two frequency ranges in 5G, including their applications and limitations.
* Carrier Aggregation: How 5G achieves higher data rates by aggregating up to 16 component carriers.
* Bandwidth Parts: Discover how 5G allows flexible use of bandwidth to maximize spectral efficiency and save energy.
* Advanced Channel Coding: The use of LDPC and Polar Codes in 5G for improved data and control channels.
* Evolution of Spectrum: The gradual shift from 4G to 5G spectrum allocation and utilization.
Whether you're a 5G enthusiast, a professional working in telecom, or someone who wants to understand the future of wireless communications, this video is for you!
Subscribe to "Learn And Grow Community"
YouTube : https://www.youtube.com/@LearnAndGrowCommunity
LinkedIn Group : https://linkedin.com/company/LearnAndGrowCommunity
Follow #LearnAndGrowCommunity
#5g #spectrum #5gnr #wirelesstechnology #CarrierAggregation #BandwidthParts #5gtechnology #telecom #FrequencyBands #NR5G #5gnetwork #5gauction #5grevolution #RAN #Radioaccessnetwork #5gran #5gcore #5garchitecture #4g #lte #telco #telecom #telecominfrastructure #telecommunications #3gpp #spectrumutilization #4gvs5g #4g5g #fr1 #fr2 #bandwidth #bandwidthparts #wirelesstechnology #wirelesscommunication #5gcoverage #5GCA #5gcarrier
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LearningTranscript
00:00Hi, in the last session we talked about the MIMO concept in 5G, and we discussed that
00:05how 5G RAIN can be benefited from multiple input, multiple output concepts.
00:11Now in this session we will be talking about 5G spectrum.
00:15So spectrum plays an important role in wireless communication.
00:18So first we will understand that what innovations 5G brings in terms of spectrum utilization.
00:24Here you can see that 5G NR spectrum options are divided into two frequency ranges.
00:30First is FR1 or Frequency Range 1 and second is Frequency Range 2 or FR2.
00:37Frequency Range 1 or FR1 includes the bands which are below 6 GHz and having the carrier
00:43bandwidth from 5 MHz to 100 MHz.
00:46So bands in Frequency Range 1 or FR1 have lower frequencies which provides better propagation
00:53characteristics.
00:54So they are ideal for coverage from macro base stations.
00:59Frequency Range 2 or FR2 covers the bands which are above 24 GHz and they can offer
01:05channel bandwidths between 50 MHz to 400 MHz.
01:09However FR2 bands have poor penetrations through obstacles like walls, buildings etc.
01:16But they can offer larger bandwidth.
01:19So these characteristics make them suitable for high density locations and hotspots such
01:24like city centers, stadiums etc.
01:27Now let's see that how the spectrum utilization evolves over time.
01:32Here you can see the allocation and the utilization of spectrum over time.
01:37Green one indicates the 4G and blue one indicates the 5G here.
01:41Initially a significant portion of a newly allocated spectrum is dedicated to 5G.
01:47But over the time more spectrum from the existing 4G spectrum will be reformed to
01:53use for 5G.
01:54And this will allow us to get the benefit of higher spectral efficiency from 5G NR radio.
02:01So it's important to understand that 5G NR brings higher spectral efficiency through
02:06the different mechanisms.
02:08Let's look on two of them now.
02:10First in this example of 20 MHz spectrum, LTE has 100 subcarriers and each of them is
02:1715 kHz wide.
02:19Whereas NR can accommodate 106 subscribers from the same 20 MHz bandwidth at the same
02:2615 kHz spacing.
02:28And this happens due to reduced guard bands.
02:31Additionally NR uses new channel coding options.
02:34While LTE relies on the turbo codes, NR uses low density parity checks codes or LDPC codes
02:41which are significantly more efficient especially for the large transport blocks.
02:47And this makes them ideal for the data channels.
02:49Secondly, NR also employs polar codes which offers about 0.5 dB gain over the turbo codes
02:57which make them suitable for the control traffic.
03:00NR supports wideband carriers which offers up to 100 MHz of bandwidth from bands below
03:066 GHz and up to 400 MHz from the bands which are above 24 GHz.
03:13These bands can also be aggregated through the carrier aggregations to achieve even higher
03:17data rates.
03:19In phase 1 of 5G NR, operators can aggregate up to 16 component carriers and up to 1 GHz
03:26of total spectrum to be utilized.
03:29And these component carriers can be contiguous, non-contiguous, intraband and can be intraband
03:35as well.
03:36So there is a lot of flexibility there in the deployment.
03:40In addition, there is one more spectrum-related concept in NR called bandwidth part.
03:46Most base stations can utilize the wider bandwidths available in 5G.
03:50However, user equipment capabilities can be different for different handsets and hence
03:55it will be more challenging for some UEs to use that larger available bandwidth.
04:00For example, some low-cost smartphones may struggle to utilize the full bandwidth or
04:06the full capacity of the bandwidth.
04:08Even if a UE is capable of using wide bandwidths, but maybe it do not need to use wide bandwidth
04:14continuously.
04:15For example, the UE just transferring a very small amount of data, like notification or
04:21small messages etc.
04:23So there is no need to use wide bandwidth in such needs.
04:27Wide bandwidths also drains more battery.
04:30So it also impacts the battery life of the device.
04:33So considering all these requirements, NR introduced bandwidth part.
04:38A bandwidth part or BWP in short is a subset of contiguous resources block on a carrier.
04:45You can see this in the picture.
04:47Here you have one single carrier at the top and it has multiple bandwidth parts like BWP1
04:53and BWP2.
04:54Like a wider bandwidth part is in blue color and the narrower bandwidth part is in green
04:59color.
05:00Now here is the important thing that each of these bandwidth parts on a carrier, they
05:05can both have different numerology.
05:07This means they can be completely different in subcarrier spacing, symbol duration and
05:12cyclic prefix length etc.
05:15There is also a lot of flexibility that how the bandwidth parts can be set up in a carrier
05:20as seen in the figure.
05:22A UE can be configured with up to four bandwidth parts, but only one can be active at any specific
05:28one point of time.
05:29For example, when a smartphone has a busty data to send, then the network configures
05:35that device for a wider bandwidth part.
05:38And when there is a very little data to send, then the network will configure that UE for
05:42a narrower bandwidth part.
05:44And hence the network resources can be utilized properly and it saves the battery life of
05:49the devices as well.
05:50Okay, so that's it for today.
05:52I believe you get some insights on spectrum allocations in 5G NR.
05:57We discussed about some of the concepts in 5G NR2 like carrier aggregation and bandwidth
06:01part, which are important for optimizing the 5G performance and network efficiency.
06:07In the next session, we will be talking about another important concept in 5G NR and that
06:11is dual connectivity.
06:13So stay tuned for the updates.
06:14If you did not subscribe till now, then please do subscribe to learn and grow community for
06:18regular updates.
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