Slide 1: How NR based sidelink expands 5G C-V2X to support new advanced use cases
March 2020 @qualcomm_tech How NR based sidelink expands 5G C-V2X to support new advanced use cases Qualcomm Technologies, Inc.
Slide 2: Today's agenda
Today’s agenda • Rel 14/15 C-V2X momentum • How does NR C-V2X bring advanced use cases? Our presenter • NR C-V2X demos and over-the-air simulations • Questions? Shailesh Patil Principal Manager/Engineer Qualcomm Technologies, Inc. 2
Slide 3: C-V2X: Rel 14/15 established basic safety, Rel 16 NR C-V2X evolution
C-V2X Rel 14/15 C-V2X established basic safety Rel 16 NR C-V2X saw continued evolution for advanced use cases Release 14/15 C-V2X standards completed Broad industry support with 5GAA Global trials started in 2017; first commercial deployment expected in 2020 V2V V2I ® Qualcomm 9150 C-V2X chipset ann
Slide 4: Rel 14/15 C-V2X
Rel 14/15 C-V2X Momentum and commercial deployments 4
Slide 5: Driving C-V2X global presence with trials and demos
Driving C-V2X global presence Collaborating with partners and customers with trials and demos • Tier 1s and OEMs • Third-party software providers • Test equipment, module, component, and antenna suppliers • Road infrastructure providers • Mobile network operators • Design services • Service provider
Slide 6: Strong C-V2X momentum globally
Strong C-V2X momentum globally Oct. 2018 Jan. 2019 Multi-OEM Cooperative driving performance live interactive evaluation of C-V2X demos in Las Vegas MDM 915 0 Sep. 2016 Feb. 2017 Sep. 2017 Apr. 2018 Jul. 2018 Nov. 2018 Feb. 2019 Mar. 2019 May 2019 Nov. 2019 Jan. 2020 5GAA Towards 5G First C-V2X Firs
Slide 7: Working with regional standards to define applications globally
Working with regional standards to define applications globally SAE for North America, ETSI ITS for Europe, and C-SAE/C-ITS for China Supporting emerging Providing Specifying minimum use cases interoperability requirements Standardizing messages for new use Allowing vehicles from different Defining
Slide 8: NR C-V2X
NR C-V2X Introduces complementary capabilities for advanced use cases 8
Slide 9: Driving the 5G technology evolution
Driving the 5G technology evolution Continue expansion to new verticals, Delivering on deployments, use cases, spectrum Future-proof the 5G vision platform Rel-18+ evolution Rel-171 Rel-161 Rel-15 Rel-15 commercialization Commercialization of future 5G releases NR LTE essential part of the 5G platfo
Slide 10: NR C-V2X builds on LTE C-V2X
NR C-V2X builds on LTE C-V2X with advanced use cases Safety use cases Advanced use cases Upper layers Mapping use cases to transport profile C-V2X NR C-V2X Rel 14/15 sidelink Rel 16+ sidelink Broadcast messages Multicast messages 5G C-V2X sidelink 10
Slide 11: NR C-V2X introduces complementary capabilities for advanced use cases
NR C-V2X introduces Rel 14 C-V2X only car complementary capabilities Rel 14 / 15 C-V2X for automotive safety for advanced use cases Rel 14 / Rel 16+ C-V2X R14 / R16+ C-V2X Rel 16+ NR C -V2X vehicles are designed to support Rel 14 / 1 5 for safety use cases 11
Slide 12: Building on existing frameworks
Building on existing frameworks Utilizes NR flexible framework Introduces advanced capabilities Scalable OFDM- Flexible slot-based Advanced • Efficient sidelink link level design based air interface framework channel coding for optimized performance at all speeds • Connectionless ‘on-the-fly’ distan
Slide 13: Scalable OFDM air interface and flexible slot structure
Higher spectral efficiency at high speeds Enhanced reliability with feedback Slot structure without feedback Control Frequency AGC Gap Data 15 kHz spacing, wideband carrier support up to 100 MHz Time NR C-V2X Slot structure with feedback 30 kHz spacing, wideband carrier support up to 100 MHz Feedbac
Slide 14: Reliable and efficient multicast using SFN feedback
Reliable multicast based on Feedback NAK1 feedback from receivers Control Control Frequency AGC AGC Gap Gap Gap Data Data Retransmission based on HARQ2 Time Multiple receivers send NAK feedback using the same resource (time and frequency), also referred to as SFN 3. SFN of NAK keeps the NAK NAK feed
Slide 15: High speed + high MCS + Additional DMRS
0.5ms TTI with 30kHz SCS RS RS RS RS Control RS Slow RS AGC Gap N RBs Vehicle speeds NR C-V2X supports 1 High speed + high MCS + Additional DMRS adaptive 2-, 3-, 4- symbol DMRS for RS RS high-speed RS Control RS performance Medium RS RS AGC Gap Vehicle speeds Variable reference signal design density
Slide 16: Uniform coverage by adding distance as a dimension
Should be notified, but does not get signal Uniform coverage by adding Location information shared efficiently in the physical layer distance as a control channel dimension Does not need to be notified, Enables NAK feedback with but gets signal HARQ based on distance c 16
Slide 17: Groups can reliably connect based on distance
Groups can reliably connect based on Vehicles within a certain distance and interested distance in same services form an ‘on-the-fly’ group c 17
Slide 18: Application-aware, distance-based multicast communication
Application A Application B Irrelevant message (outside app-specific distance) NAK NAK Received Application-aware, distance-based Application-specific distance is determined based on relevancy Transmitting vehicles adapt transmission to relevant vehicles within range multicast communication Receivin
Slide 19: Rich sensor sharing
C-V2X vehicle detects non-C-V2X vehicle 1 2 Inform other C-V2X vehicles with the presence of non-C-V2X vehicles Rich sensor With proxy forwarding, these benefits can be realized even sharing with limited deployment c 19
Slide 20: Semi-persistent and per packet scheduling
Semi-persistent scheduling Suitable for basic safety messages with similar packet sizes Periodic transmission (typically ~100 ms) Per packet scheduling Variable traffic model based on the varying packet sizes Lower latency (< 100 ms) Packet Resource Efficient and flexible resource allocation for adv
Slide 21: Two-stage control
Two-stage control Control1 Stage allows efficient and AGC Gap Data Data flexible support for Stage 2 (Rel 16) current and future applications Slot structure showing two-stage control Stage 1 Common across releases and provides resource allocation information R16 UE R17 UE R17 UE Stage 2 Stage 1 form
Slide 22: Significant NR C-V2X physical layer gains
Significant NR C-V2X enhancements physical layer gains Spectral efficiency: up to 2x for broadcast Scalable OFDM and flexible DMRS provide higher spectral efficiency, which reduces bandwidth usage and allow for more capacity Lower latency: Tx latency as low as 1.5 ms Due to shorter slots and resourc
Slide 23: NR C-V2X benefits
Benefits NR C-V2X NR C-V2X builds on LTE C-V2X Rich sensor sharing Enables perception and intent sharing among vehicles On-the-fly connectionless groups Enabled by distance-based reliability Benefits in addition to safety Coordinated driving brings reduced congestion, shorter trip time, and energy s
Slide 24: NR C-V2X over-the-air demos and simulations
NR C-V2X Over-the-air demos and simulations 24
Slide 25: Qualcomm 5G technology licensing notice
Qualcomm 5G technology is licensed by Qualcomm Incorporated. Qualcomm 5G products are products of Qualcomm Technologies, Inc. and/or its subsidiaries. 25
Slide 26: 5G C-V2X Technology Evolution - Interactive Simulation
Qualcomm 5G | 5G C-V2x Technology Evolution - Interactive Simulation Visible Vehicte (VIS) ‘Obstruction ‘Obstructed Vehicle Speed Visible Vehicle Speed Emergency Vehicle Speed vax Non C-v2x Enabled Vehicles Present x Bo
Slide 27: 5G C-V2X prototype platform
5G C-V2X prototype platform 27
Slide 28: 5G C-V2X Technology Evolution
5G C-V2X Technology Evolution fa) Emergency Vehicle
Slide 29: Thank you!
Thank you! Follow us on: For more information, visit us at: www.qualcomm.com & www.qualcomm.com/blog Nothing in these materials is an offer to sell any of the References in this presentation to “Qualcomm” may mean Qualcomm components or devices referenced herein. Incorporated, Qualcomm Technologies,