Introduction to 5G NR
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This document provides an introduction to 5G technology, including: - 5G aims to meet growing connectivity needs and fulfill diverse use cases such as drones, augmented reality, and the Internet of Things. - 5G standards are being developed by 3GPP and ITU, with 3GPP specifying the radio technology beyond LTE known as New Radio (NR). - 5G requirements defined by 3GPP include high peak data rates, low latency, high reliability, large connection densities, and support for high mobility.
![9
The use cases, and vision of the 5G system lead to diverse requirements
that the future mobile broadband system will need to meet. The future
may seem far ahead but the phase for defining the requirements is
already started.
The 5G unified ecosystem will serve both traditional as well as potential
new applications like drones, real time video surveillance, mobile
augmented and virtual reality, Internet of Things and so on.5G will have
to cope with a high degree of heterogeneity in terms of:
•Services: mobile broadband, massive machine and mission critical
communications, broader multicast services and vehicular
communications.
•Device classes: low-end sensors to high-end tablets.
•Deployment types *[4]:macro and small cells.
•Environments: low-density to ultra-dense urban.
•Mobility levels:static to high-speed transport.](https://image.slidesharecdn.com/1212-190129143638/85/Introduction-to-5G-NR-9-320.jpg)
![18
5G RAN Requirements (38.913)
Performance Measure Requirement
Peak data rate DL: [20 Gbps] UL: [10
Gbps]
Peak spectral efficiency DL: [30 bps/Hz] UL: [15
bps/Hz]
Spectrum Scalability Yes
Bandwidth Reference to IMT-2020
Bandwidth Scalability Yes
Control plane latency [10 ms]
UP latency URLLC, one-way [0,5 ms]
UP latency eMBB, one way [4ms]
Latency for infrequent small
packets
10s / 20byte packet
Mobility interruption time (intra-
syst.)
[0 ms]
Mobility Up to 500 km/h
Inter-system mobility Yes
Reliability [1-10-5] in [1ms]
Performance Measure Requirement
Ue Battery life 10-15 years
UE energy efficiency Inspection (Qualitative)
Cell/Tx Point/TRP sp. Eff. 3xIMT-A requirement
Area traffic capacity 10Mbps/m2 [ITU]
TRP spectral efficiency [3x IMT-A requirement]
User experienced data rate 100/50 Mbps DL/UL [ITU]
User sp. eff. at 5% percentile [3x cell edge IMT-A
requirement]
Connection density [1,000,000 devices/Km2]
NW energy efficiency Qualitative & Quantitative KPI
eMBB Extreme coverage 140/143 dB loss MaxCL
(2/1(DL))
IoT Coverage MCL [164dB] for [160bps]
Support of wide range of
services
Yes](https://image.slidesharecdn.com/1212-190129143638/85/Introduction-to-5G-NR-18-320.jpg)
Introduction to 5G NR
- 2. Objectives : 2 1.Concepts of 5G 2.3GPP standardization for NR
- 4. 4 Radio technologies have evidenced a rapid and multidirectional evolution with the launch of the analogue cellular systems in 1980s. Thereafter, digital wireless communication systems are consistently on a mission to fulfil the growing need of human beings (1G, …4G, or now 5G). So, this presentation describes the 5G technology emphasizing on its salient features, technological design (architecture), advantages, shortcomings, challenges, and future scope.
- 5. 5
- 6. 6 5G wireless technologies multiple types of user and machine served nodes, and disruptive devices acting as prosumers
- 7. “ 7 What is 5G In general terms 5G is the new use cases (or refreshed old ones) that can be carried over any suitable network. – Radio access options: LTE, NR – Core network options: EPC, NGCN › NR: “5G New Radio” / “NR Radio Access” / “Next Generation Radio” › NGCN: “Next Generation Core Network” a.k.a. “5GC”: 5G Core Network
- 8. 8 Heterogeneous use cases diverse requirements
- 9. 9 The use cases, and vision of the 5G system lead to diverse requirements that the future mobile broadband system will need to meet. The future may seem far ahead but the phase for defining the requirements is already started. The 5G unified ecosystem will serve both traditional as well as potential new applications like drones, real time video surveillance, mobile augmented and virtual reality, Internet of Things and so on.5G will have to cope with a high degree of heterogeneity in terms of: •Services: mobile broadband, massive machine and mission critical communications, broader multicast services and vehicular communications. •Device classes: low-end sensors to high-end tablets. •Deployment types *[4]:macro and small cells. •Environments: low-density to ultra-dense urban. •Mobility levels:static to high-speed transport.
- 11. 11 3GPP standardization The standardization of 5G is ongoing in ITU (International Telecommunication Union) and 3GPP (Third Generation Partnership Project). For example, the radio section of ITU, ITU-R, defines requirements that 3GPP will try to fulfill with its specifications in the 38-series (Radio Technology beyond LTE). In the figure below, interpretations of the arrows between ITU and 3GPP: the ITU workshop 2017 creates Requirements the 3GPP Study Item will create Concepts the NR ph 2 will create Specifications NGMN milestones are included as reference/proof that the ITU and 3GPP activities are in line with the operator’s expectations/needs.
- 12. 12 The ITU requirements IMT2020 will most likely be fulfilled by 3GPP specifications and approved as IMT2020 specifications.
- 13. 13 IMT Advanced to IMT 2020 ITU-R Recommendation M.2083: 8 key capabilities are identified, at high level, for IMT-2020. The potential target requirements in this spider chart are only targets for research and investigation and subject to further research.
- 14. 14 According to ITU-R,IMT-2020 is expected to provide a user experience matching, as far as possible, fixed networks. The enhancement will be realized by increased peak and user experienced data rate, enhanced spectrum efficiency, reduced latency and enhanced mobility support. In addition to the conventional human-to-human or human-to-machine communication, IMT 2020 will realize the Internet of Things by connecting a vast range of smart appliances, machines and other objects without human intervention. IMT-2020 should be able to provide these capabilities without undue burden on energy consumption, network equipment cost and deployment cost to make future IMT sustainable and affordable. The key capabilities of IMT-2020 are shown in this spider chart, compared with those of IMT-Advanced. These requirements figures are targets for research and investigation for IMT-2020 and may be further updated in other ITU-R Recommendations .
- 15. 15 Phase 1 – early commercial deployments › Focus on eMBB and URLLC › UMa / UMi, O2I, up to ~500m ISD › Frequency range up to 52.6 GHz – 3.5, 28 GHz – 39 GHz (US), 4.4 GHz (Asia) › FDD and Dynamic TDD › Standalone – LTE-NR Dual Connectivity – NR-NR Carrier Aggregation › NR-LTE Co-channel Co-existence (DL & UL) › OFDM, Mini-slots, RRC Inactive › NW Slicing Phase 2 – Full IMT2020 compliance ›Unlicensed spectrum – Standalone and license assisted – 5, 3.5 and 60GHz › Multiple access › Lower layer CU/DU split › Non-terrestrial Networks › eV2V evaluation › Integrated Access Backhaul 14
- 16. 16 3GPP 5G RAN defined requirements Data rates DL 20 Gbps, UL 10 Gbps Peak spectral efficiency DL 30 bps/Hz, UL 15 bps Latency User: ▪0.5ms for UL, and 0.5ms for DL (URLLC) ▪User: 4ms for UL, and 4ms for DL (eMBB) Control: 10 ms Reliability 10-5 = 99.999% Network virtualization New open interfaces Connection density 1M/km2 Mobility Up to 500 km/h Coverage 164 dB LTE interworking Dual connectivity 3GPP technical requirements in the TR 38.913: Source: TR 38.913 on “Study Item on Scenarios and Requirements for Next Generation Access
- 17. 17 In December 2015,the 3GPP Study Item about Scenarios and Requirements for Next Generation Access Technologies was approved at the TSG RAN #70 meeting held in Spain. The objective of the study item is to identify the typical deployment scenarios associated with attributes such as carrier frequency, inter-site distance, user density, maximum mobility speed, etc., and to develop requirements for next generation access technologies for the identified deployment scenarios taking into account, but not limited to, the ITU-R discussion on IMT-2020 requirements. Some of these key physical layer related requirements are show hereon this chart. The fundamental requirements for 5G system as defined in the 3GPP TR38.913 are detailed in dedicated module.
- 18. 18 5G RAN Requirements (38.913) Performance Measure Requirement Peak data rate DL: [20 Gbps] UL: [10 Gbps] Peak spectral efficiency DL: [30 bps/Hz] UL: [15 bps/Hz] Spectrum Scalability Yes Bandwidth Reference to IMT-2020 Bandwidth Scalability Yes Control plane latency [10 ms] UP latency URLLC, one-way [0,5 ms] UP latency eMBB, one way [4ms] Latency for infrequent small packets 10s / 20byte packet Mobility interruption time (intra- syst.) [0 ms] Mobility Up to 500 km/h Inter-system mobility Yes Reliability [1-10-5] in [1ms] Performance Measure Requirement Ue Battery life 10-15 years UE energy efficiency Inspection (Qualitative) Cell/Tx Point/TRP sp. Eff. 3xIMT-A requirement Area traffic capacity 10Mbps/m2 [ITU] TRP spectral efficiency [3x IMT-A requirement] User experienced data rate 100/50 Mbps DL/UL [ITU] User sp. eff. at 5% percentile [3x cell edge IMT-A requirement] Connection density [1,000,000 devices/Km2] NW energy efficiency Qualitative & Quantitative KPI eMBB Extreme coverage 140/143 dB loss MaxCL (2/1(DL)) IoT Coverage MCL [164dB] for [160bps] Support of wide range of services Yes
- 19. 19 ITU-R IMT-2020 ITU-R IMT-Advanced 3GPP LTE-A Pro 3GPP New radio (NR) Bandwidth Up to 1GHz Up to 100 MHz Up to 640MHz Up to 1 GHz Peak data rate DL 20 Gbps UL 10 Gbps DL 1.5 Gbps UL 0.675 Gbps DL 3 Gbps UL 1.5 Gbps DL 20 Gbps UL 10 Gbps Peak spectral efficiency DL 30 bit/s/Hz UL 15 bit/s/Hz DL 15 bit/s/Hz UL 6.75 bit/s/Hz DL 30 bps/Hz UL 15 bps/Hz DL 30 bit/s/Hz UL 15 bit/s/Hz User plane latency Max: 4 ms Max: 10 ms Max: 2ms Max: 0.5 ms Control plane latency Max: 20 ms Max: 100 ms Max: 50 ms Max: 10 ms Connection density 1 000 000 devises/km2 N/A N/A N/A Technology Parameters IMT 2020 VS IMT ADVANCED
- 20. 20 Thanks