What’s in the future of 5G millimeter wave? January 2021 @QCOMResearch
What’s in the future of 5G millimeter wave?
January 2021 @QCOMResearch
22
New frontier of mobile broadband — mobilizing mmWave
Sub-7 GHz(e.g., 3.5 GHz)
7 GHz 24 GHz 100 GHz
Vast amount of bandwidth that is ~25x more than what’s being used for 3G/4G
Millimeter wave (mmWave)(e.g., 26 GHz, 28 GHz, 60 GHz)
Much more capacityWith dense spatial reuse
Multi-Gbps data ratesWith large bandwidths (100s of MHz)
Lower latencyBringing new opportunities
3
• Fiber-like data speeds
• Low latency for real-time interactivity
• Massive capacity for unlimited data plans
• Lower cost per bit
5G NR mmWave can support new and enhanced mobile experiences
Rich media and entertainment for outdoor — augmenting lower bands
Massive bandwidth for cloud computing
Dense indoor & outdoor connectivity for venues
Virtually lag-less experiences — e.g., multiplayer gaming
More indoor capacity as outdoor mmWave offloads outdoor lower bands
New indoor opportunities —e.g., connected enterprises
Fiber-like broadband to the home — fixed mmWave
Beyond smartphones — e.g., smart manufacturing
44
1989: CDMA
We proved the skeptics wrong
Many argued that CDMA was too complex to
deploy. Others said it just wouldn’t work.
Qualcomm’s mission statement
“Qualcomm’s objective is to apply our experience to systems problems that arise in the design, analysis, implementation and testing of digital communication processing systems and networks to bring reliable, functionally effective, user-friendly products to the marketplace.”
Dr. Irwin Mark Jacobs
Dr. Andrew J. Viterbi
July 1, 1985
Solving system-level problems is in our DNA
5
We overcame the “impossible” mobile mmWave challenge
Limited coverage and too costly
Limited to just a few hundred feet, thus requiring many
small cells
Significant coverage with co-siting
Analog beamforming w/ narrow beam to overcome path loss.
Achieving significant coverage when reusing existing sites.
Works only line-of-sight (LOS)
Blockage from hand, body, walls, foliage, rain
severely limits signal propagation
Operating in LOS and Non- LOS
Pioneered advanced beamforming, beam tracking
leveraging path diversity and reflections.
Only viable for fixed use
Only commercially proven for wireless
backhauls and satellites
Supporting robust mobility
Robustness with adaptive beam steering and switching
to overcome blockage from hand, head, body, foliage.
Immature RFIC technology
Power hungry due to wider bandwidth with
thermal challenges in small formfactor
Commercialized smartphone
Launched modem, RF, and antenna products to meet
formfactor, thermal constraints and regulatory compliance.
Modem RFTransceiver
RF Front-end
6
A system approach to innovation — from vision to commercialization
Industry-leadingR&D
Breaking technology boundary
to bring new capabilities
and efficiencies for new devices,
services, deployments
1 2 3 4 5
Prototyping whiledriving standards
Validating new designs by building
real systems — networks and
devices, driving standards with
learning
Advanced system simulations
Using real models to accurately
predict system performance
in a wide range of scenarios
Broad industry collaboration and trials
Working closely with the
ecosystem to prototype new
solutions, fully utilizing our global
experience
Cutting-edge system solutions
Delivering not just device chipsets
but system solutions, such
as small cells, device and data
management
Qualcomm Snapdragon is a product of Qualcomm Technologies, Inc. and/or its subsidiaries.
7
1990+
Demonstrated Non-line of sight
(NLOS) mmWave mobility with
beam steering, first at 5G
analyst day in October 2015
Commercial 5G NR
mmWave network and
devices including data
cards and smartphones
Many years of
foundational technology
research on mmWave,
MIMO, advanced RF
Sep. 2017 1H19+
MWC 2016 MWC 2018MWC 2017
Showcased 5G NR
mmWave coverage
simulations announced
prototype mmWave UE
Sep. 2018
Demonstrated NLOS van
mobility with beam steering &
switching across access points
Announced first 3GPP-
compliant 5G NR
mmWave OTA call with a
mobile form factor device
Completed interoperability
testing with multiple
infrastructure vendors,
showcased 5G network
capacity simulations
Oct. 2017
Demonstrated world’s first 5G
mmWave connection based on
Snapdragon X50; announced
smartphone reference design
Oct. 2018
Introduced even smaller
5G NR RF module that
is 25% smaller in size
Dec. 2017
Achieved world’s first
5G NR mmWave
standards-compliant
connection with partner
Oct. 2016
Introduced world’s first
announced 5G modem, the
Qualcomm® Snapdragon™
X50, mmWave & sub-6 GHz
Many milestones to mobilize 5G NR mmWave
Mar. 2017
Led way forward on
accelerated 5G NR eMBB
workplan, to enable
mmWave launches in 2019
Sep. 2017Launched world’s first mmWave
smartphone, Asus ZenFone,
supporting 802.11ad 60 GHz
5G NR field trials with MNOs & infra vendors
MWC 2019
Announced our indoor and
outdoor mmWave e2e OTA
test networks and showcased
indoor mmWave simulations
Qualcomm Snapdragon is a product of Qualcomm Technologies, Inc. and/or its subsidiaries.
Announced our second
generation multimode 5G
modem, Qualcomm®
Snapdragon™ X55
Feb. 2019
Jul. 2018Launched the world’s
first 5G NR RF module
for mobile devices
FSM100xx
May 2018
Introduced FSM100xx,
industry’s first 5G NR
solution for small cells
and remote radio heads
Feb. 2020
Announced our third generation 5G
modem, Qualcomm Snapdragon
X60, and continued to evolve our
mobile mmWave test network
Completed second 5G
standard — Release 16,
bringing enhanced mmWave
performance and efficiency
Jul. 2020
Continued mobile mmWave evolution
99
Hotspots
CPEs
Modules
PCs5G smartphones
Qualcomm Snapdragon is a product of Qualcomm Technologies, Inc. and/or its subsidiaries.
5G mmWave commercial devicespowered by Snapdragon
9
10
Indoor /outdoorvenues
Conventions, concerts, stadiums
Indoor enterprisesOffices, auditoriums,
manufacturing
Transportationhubs
Airports, train terminals, subway stations
Expanding mmWave indoors, private networks, homes, IIoT
Leveraging existing Wi-Fi or
cellular by co-siting
Beyond smartphones, laptops,
tablets, extended reality, …
Multi-Gigabit speeds with
virtually unlimited capacity
Industrial IoT
Factories, warehouses, logistic hubs
Fixed wireless access
Urban cities, suburban towns, rural villages
1111
12
Evolving mmWave in 3GPP Rel-16+
13
Deliveringon the 5G vision
Continue expansion to new verticals, deployments, use cases, spectrum
Unified, future-proof platform
Rel-17+ long-term expansion• Lower complexity NR-Light
• Boundless extended reality (XR)
• Higher precision positioning and more…
Rel-15 eMBB focus• 5G NR foundation
• Smartphones, FWA, PC
• Expanding to venues, enterprises
Rel-16 industry expansion• eURLLC and TSN for IIoT
• NR in unlicensed (NR-U)
• Positioning
1. 3GPP start date indicates approval of study package (study item->work item->specifications), previous release continues beyond start of next release with functional freezes and ASN.1
• 5G V2X sidelink multicast
• In-band eMTC/NB-IoT
Rel-15
NR
Driving the 5G technology evolution
LTE essential part of the 5G platform
Rel-15 commercialization Commercialization of Rel-16, 17, and future releases
Rel-18+ evolution
Rel-171
Rel-161
2018 20202019 20222021 2023+
14
Expanding mmWave spectrum with the common framework
Further mmWave expansion targeting future releases
Potential 5G band for future study
Potential 5G band in study
Prioritized expansion of mmWave in Rel-172
Supported mmWave bands in Rel-15
Expansion of low/mid band spectrum1
Prioritizing the
expansion to 71 GHzCommon
framework
Common
framework
Sub-7 GHz
(e.g., 3.5 GHz)
Millimeter wave
(e.g., 28, 39 GHz)
1. Rel-15 supported 450 MHz to 6 GHz; 2 To support global unlicensed 60 GHz bands, SCS scaling from 24.25-52.6 GHz band with same characteristics (e.g., waveforms)
7.125 GHz 24.25 GHz 52.6 GHz 71 GHz 114.25 GHz410 MHz
1515
Distributing antennas to improve robustness and coverage
Beam overlap with improved angular diversity
Flexible spatial reuse from single mmWave cell
Range extension and coverage around blockages
5G NR mmWave gNodeB and remote radio heads (RRHs)
Wireless fronthaul (e.g., 95 GHz)
Fiber fronthaul
RRH
RRHgNodeB
mmWave gNodeB
Rel-16 IAB improves coverage and capacity, further enhancements in Rel-17+
gNodeB IAB node
IAB node
mmWave integrated access and backhaul (IAB)
Extending coverage with simple repeaters, smart repeaters in Rel-17+
Simple Repeater
Smart Repeater
gNodeB
mmWave link
mmWave repeaters
Adaptive multi-beam operation and TDD awareness
16
Disaggregated architecture for integrated access & backhaul
5G core network
IAB Donorproviding device interface to core network and wireless backhauling for downstream IAB nodes
Central UnitControl Plane
Other functions
Central UnitUser Plane
Distributed Units
5G mmWave devices
IAB Node
5G mmWave devices
5G mmWave devices
Wireless access
IAB donor components
IAB node components
DU DU
CU-CP
CU-UP
OF
MT
DU
Mobile Terminal acts as a device for its
parent node
Distributed Unitacts as a gNodeB for its child nodes with L2 functionalities
(i.e., MAC scheduler)
1717
5G NR mmWave IAB1 for cost-efficient dense deployments
Traditional fiber backhaulcan be expensive formmWave cell sites
Improves coverage and capacity, while limiting backhaul cost
1 Integrated Access and Backhaul
• mmWave access inherently requires small cell deployment
• Running fiber to each cell site may not be feasible and can be cost prohibitive
• mmWave backhaul can have longer range compared to access
• mmWave access and backhaul can flexibly share common resources
Sub-6 GHz gNodeB
Fiber
backhaul
Multi-hop capability Redundant links
mmWave access
mmWave backhaul
For SA and NSA 5G NR modes
For mobile and fixed
wireless access
18
Supporting a flexible network deployment strategyIAB can enable rapid and cost-efficient 5G NR mmWave network buildout
Starting to connect new 5G NR mmWave base stations using limited/existing fiber links
Fiber
backhaul
Early 5G NR mmWavedeployments based on Rel-15
Incrementally deploying additional base stations with IAB still using limited/existing fiber links
Fiber
backhaul
IAB
IAB
IAB
IAB
IAB
IAB
IAB
IAB
IAB
IAB
IAB
IAB
IAB
IAB
IAB
IAB
Widening 5G NR mmWavecoverage using IAB
Deploying new fiber links for selected IAB nodes as capacity demands increase
Fiber
backhaul
Supporting rapid traffic growth with additional fibers
19
Evolving IAB for broader, more efficient deploymentRel-17+ brings better capabilities, more flexible deployments, and new use cases
Smarter network planningML-based network management, zero-network planning, increased IAB deployment tolerances
Enhanced QoSOptimizations for latency-critical traffic on backhaul and scheduling/signaling improvements for multi-hop
LTE
Expanded backhaulWireless backhauling LTE and non-3GPP traffic over 5G NR mmWave IAB supporting QoS
Enhanced multiplexingSimultaneous access and backhaul with spatial multiplexing or full duplex
Network power savingIAB can be powered down during low traffic and supporting dynamic broadcast config
Enhanced distributed IABDistributed unit (DU) context can be shared between centralized units (CU), cross-CU configurations
Topological redundancyExtension to support more than two parent IAB nodes to achieve better reliability and capacity
Expanded spectrumUnlicensed (e.g., 37, 60 GHz) or higher mmWave bands (e.g., 71-114.25 GHz)
Mobile relay and sidelinkCoverage extension and offload with moving base stations for portable deployment for e.g., disaster areas
20
Spring 2020
Total number
of devices:
Total number
of IAB nodes:
Total simulation
area: ~1 km2
28
300
Deploying IAB to expand mmWave coverage End-to-end system simulations using 5G NR mmWave at 28 GHz
Link to full demonstration video
Frankfurt, Germany
Total number
of gNodeBs: 7
Network throughput improvement
Average downlink signal improvement
Map Legend
#mmWave devices
gNodeB site
IAB site
No IAB With IAB
mmWave coverage simulation results
2121
Further enhancing mmWave beam management in Rel-16+
1 Including proactive beam set switching, SCell beam failure recovery, and UL beam failure recovery; 2 Via device-based beam management that also helps to adhere to MPE - Maximum Permissible Exposure; for example,
when a finger is on top of a patch antenna, the MPE is significantly lower than otherwise (+34dBm vs. +8dBm)
• Supporting multi-beam repetitions
• More robust beam failure recovery
schemes1 for both UL and DL
Improved reliability
• Multiple antenna panels support to
improve throughput and diversity
• UL/DL beam selection decoupled for
optimal performance in both directions2
Higher performance Better mobility / coverage
• More efficient beam management
to support higher intra- and L1/L2
inter-cell mobility (e.g., expanded
beam selection)
22
Total number
of devices:
Total number
of gNodeBs:
Total simulation
area: ~1 km2
113
300
Spring 2020
Showcasing network benefits of Multi-TRPEnd-to-end system simulations using 5G NR mmWave at 28 GHz
Link to full demonstration video
Frankfurt, Germany
Network throughput improvement Average device downlink signal improvement
Map Legend
#Multi-TRP devices
gNodeB site
23
Further improving power efficiencies for
5G NR mmWaveFocusing on connected modepower saving — 3GPP Rel-16+
Device assistedpower savingsDevice provides additional information
(e.g., battery level & temperature) for
network to select carrier or power mode1
Sub-6 GHz
mmWave
Multi-panel beam management Antenna information is provided by
the device to enable more power-
efficient beam sweeping/switching
1 For example, using lower rank/CA during power-saving mode; 2 Wakeup Receiver; 3 Connected discontinued receive;
4 Power saving ranges from 10% to 80% over baseline C-DRX depending on the Ton and Tcycle configurations;
Integrated WUR2 with beam
management in C-DRX3
Beamformed wakeup signal
improves beam pairing success
and extends sleep4
Efficient carrier
aggregation operationReduce number of blind decoding
to optimize power consumption
Enhanced low-power
modesImprove device power consumption
in idle and inactive modes
More efficient control
channelReduce processing overhead with
control channel (PDCCH) skipping
24
Spring 2020
Total number
of devices:
Total number
of gNodeBs:
Total simulation
area: ~1 km2
96
1500
Simulating device power saving featuresWith R15 C-DRX baseline, R16 Wakeup Signal and Enhanced CA
Link to full demonstration video
Frankfurt, Germany
Wakeup Signal
Enhanced CA
25
HD video surveillanceImmersive trainingIndustrial handhelds
5G Smart
Manufacturing
~4.8TIn global economic
value by 2035
5G mmWave brings benefits to a broad set of industrial use cases
Precise indoor locationing Guided execution
Automation & motion control Mobile robots (e.g., AGV) Mobile workstations
Inherently ultra-low latency
Fiber-like data speeds
Massive capacity
Indoor / outdoor isolation
Simple deployment
* The 5G Economy in a Post-COVID-19 Era – an independent study from IHS Markit,
commissioned by Qualcomm Technologies, Inc.
26
Enhanced mobile broadband
Massive IoT
Ultra-reliable low-latency
Automated guided vehicle (AGV)
Wireless edge analytics
Computer visionSensors
Head mounted display
Industrial robot
Handheld terminal
27
5G CoMPachieves ultra-reliabilitySpatial diversity for eURLLC
1to reach 99.9999% reliability
2
TRP 3
gNB
distributed
units
gNB centralized
unit and CoMP server
• Other diversity methods such as frequency and time diversity are not sufficient for URLLC
• CoMP is facilitated by denser deployment of small cells with high bandwidth backhaul
• For sub-7 GHz and mmWave, licensed and unlicensed spectrum in Rel-16
• Expanding to higher mmWave bands (e.g., 60 GHz in Rel-17+)
Coordinated Multi Point (CoMP) creates spatial diversity with redundant communication paths
TRP TRP
1. Enhanced ultra-reliable low latency communication; 2. A performance requirements for communication service availability in 3GPP TS 22.104;
3. Transmission/Reception Point
28
Further enhancing CoMP capabilitiesUtilizing multiple transmission / reception points (Multi-TRP)
1 Hybrid ARQ acknowledgement; 2 Single frequency network
Robustness improvementsBeam sweeping for downlink/uplink control (e.g.,
HARQ ACK1) and uplink data channels
Inter-cell multi-TRPAllowing TRPs from different cells/base stations to
work together in multi-TRP operations
Release 17+
Channel feedback enhancementsQuicker beam selection with fast feedback and simultaneous uplinks to multiple TRPs
Power savingsOverhead reduction with optimized low-power mode (e.g., WUS) procedures for multi-TRP scenarios
Enhanced mmWave operationsMore efficient per-TRP beam failure recovery,
beamformed SFN2, joint beam selection across TRPs
Unlicensed spectrum enhancementsGroup-based LBT procedure leveraging high-quality backhaul, other channel access enhancements
29
Further enhancing 5G mmWave design for industrial IoT
Reliability enhancementsMulti-beam operation
More candidate beams (e.g., beam sweeping for DL control, UL
control and data), device-based fast beam update
Latency enhancementsBeam failure recovery
Quicker beam failure detection and recovery procedure activation
based on device feedback
Beam management
Overhead reduction with pre-determined beam switching
(predictable device movements in IIoT environment)
Enhanced device feedbackRefined HARQ (hybrid automatic repeat request) feedback and
enhanced CSF (channel state feedback)Release 17+ Enhancements
Improving reliability, capability, and performance
30
Scaling down 5G mmWave for new IoT applications
5G NR-Light
mmWaveLower complexity & power
Rel-17+
5G mmWaveHighest performance
Rel-15+
High-end
wearables
Surveillance
cameras
Industrial
sensors
Lower-tier
mobile devices
Lower device complexity
Power savings
Increased network efficiency
Coverage optimization
Reduced bandwidths
(e.g., 50/100 MHz)
Fewer antennas
Half duplex
Relaxed device processing
capability and timeControl overhead reduction
Enhanced power saving modes
Limited mobility and handovers
Repetition and bundling
Lower order modulation
Sidelink or relays
Reduced signaling overhead
Asymmetric traffic optimization
Better resource management
Service coexistence
31
• For both indoor & outdoor positioning
• Complementing existing positioning technologies, such as GNSS1, beacons, sensors, Wi-Fi/Bluetooth
• Targeting accuracy and latency that meet diverse service requirements2
• Supported in sub-7 GHz and mmWave
Supporting a wide range of new vertical use cases
Supply chain visibility
Connected enterprises Drone tracking Smart retail
Public safety
Connected healthcareSmart manufacturingIndoor navigation
5G NR Positioning
3232
Device-based positioning (e.g., multi-RTT, AoA) improves accuracy, reliability, latency, flexibility, scalability, and tight integration with location applications
Evolving 5G NR positioning to fully meet 5G requirements
Release 17Enhancing capability and performance for a wide range of use cases
Release 16Meeting initial accuracy requirements of 3m (indoor) to 10m (outdoors) for 80% of time
Time difference of arrival (TDOA)
Roundtrip time (RTT)
Angel of arrival / departure (AoA/AoD)
Single-cell positioning
Radius based on RTT
Position along circumference based on UL AoA
Centimeter level accuracyMeeting absolute accuracy requirements of down to 0.3m
Lower latency positioningReducing positioning latency to as low as 10 ms (e.g., on-demand PRS, L1/L2 signaling)
Higher capacityScaling to millions of simultaneous devices for e.g., IoT, automotive
New evaluation scenariosSupporting new channel models for industrial IoT environment
33
Evolving 5G positioning for better accuracy and efficiencyEnhancements candidates for Release 17 and beyond
1 Positioning Reference Signals; 2 Apply to UL/DL and RTT based positioning techniques; 3 For techniques based on range measurements — different bands have different reflection/propagation characteristics but same
speed-of-light OTA; 4 Round Trip Time; 5 Time Difference of Arrival
Multi-carrier positioningAggregating contiguous carriers to increase effective PRS bandwidth for better accuracy
PRS 1 PRS 2 PRS 3
Effective PRS1
Inter-band measurements2
Comparing measurements from different bands (e.g., sub-7 vs. mmWave) to eliminate errors from NLOS paths3
Reflector (e.g., tinted glass, concrete)
Blo
cka
ge
Lower band PRS (e.g., sub-6 GHz)
Higher band PRS (e.g., mmWave)
Reference node synchronizationImproving calibration of the positioning reference nodes to minimize relative location / synchronization errors
Node A
Node B
Node CRTT4 measurement derives inter-node distance
RTT + TDOA5
measurement derives synchronization error
Positioning in low-power statesMeasuring & reporting position in inactive / idle modes to reduce power consumption and latency
Device in inactive / idle mode
Sidelink positioningUtilizing sidelink (i.e., PC5) for more flexible positioning, for e.g., automotive / V2X use cases
On-demand PRSReducing broadcast overhead & positioning acquisition latency and optimizing for different requirements, e.g., accuracy/latency
Request for PRS
Low-latency signalingLayer 1 / 2 based signaling for PRS transmission and management report
34
5G NR sidelink extends coverage & targets new use casesBuilding on LTE and C-V2X direct communication for sub-7 GHz and mmWave
High performance offloadProviding high data rate, low latency links to devices in proximity, for use cases such as gaming, mission-critical
Wearable connectivityCreating a personal area network to connect the smartphone directly to wearables such as watches, XR, and more
Range extensionExtending coverage via direct communication, e.g., for massive IoT devices (e.g., meters) with multi-hop mesh relays
Public safetyEnhancing existing LTE based system to enable services over 5G NR, including one-to-many device broadcast
35
Breaking the technology
boundary with 5G mobile
mmWave evolution
Advanced 5G mmWave OTA test network
▪ 3GPP-compliant 5G mmWave network operating
at 28 GHz capable of 800 MHz bandwidth
▪ Robustness with crowd blocking and high-speed
mobility (i.e., device travelling on a drone)
▪ Boundless virtual reality (VR) experiences using
5G, edge cloud and on-device processing
5G mobile mmWave technology evolution
▪ System simulations of new features in Rel-16+
▪ Integrated access and backhaul
▪ Multiple transmission and reception point
▪ Advanced device power saving features
Mobile test device on a drone
February 2020
36
5G NR enhancements for mmWave
Integrated access and backhaul (IAB)Enabling flexible deployment of small cells reusing
spectrum and equipment for access and backhaul
Enhanced beam managementImproving latency, robustness and performance with full
beam refinement and multi-antenna-panel beam support
Power saving featuresMaximizing device sleep duration to improve power
consumption as well as allowing faster link feedback
Dual connectivity optimizationReducing device initial access latency and improving
coverage when connected to multiple nodes
Completed Release 16 Projects
PositioningMeeting initial accuracy requirements of 3m (indoor)
to 10m (outdoors) for 80% of time
Expanded spectrum supportSupporting licensed and unlicensed spectrum in
frequencies ranging from 52.6 GHz to 71 GHz
Optimized coverage & beam managementReducing overhead, enhancing performance (e.g., beam
selection), improving coverage
New use cases beyond eMBBExpanding mmWave support for sidelink, URLLC,
and industrial IoT use cases (e.g., NR-Light)
Improved IAB for distributed deploymentIntroducing full duplex operations and mobile relays for
improved capability, coverage, and QoS
Release 17+ Projects
Enhanced positioningEnhancing capability for a wide range of use cases
— cm-level accuracy, lower latency, higher capacity
37
Continued evolution
Rel-15
eMBB focus
Rel-18, 19. 20 and beyond
Continued 5G proliferation
Rel-16 and 17
Expanding to new industries
Intelligently connectingour world in the 5G era
Strong 5G momentum
sets the stage for the
global expansion
Historically 10 years between generations
A unified connectivity fabric this decade
Next technology leap for new capabilities
and efficiencies
38
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