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OSA 5405-MB – precise edge timing for 5G and smart
cities
April 2021
Combining a multi-band GNSS antenna with a PTP grandmaster and NTP server
© 2021 ADVA. All rights reserved.
2
The better is the enemy of the good
Requirements:
Highly precise and resilient
synchronization in an outdoor
application
Mobile base stations
Access to accurate, secure timing
under difficult environmental
conditions
Industrial control, manufacturing
Robust timing, frequently limited
access to roof space for antenna
mounting
Finance, data centers
GNSS antenna
Coaxial cable
PTP grandmaster with GNSS receiver
Good enough ?
© 2021 ADVA. All rights reserved.
3
Synchronizing sites and applications
Requirements:
Simpler installation
Integrated solution
Higher accuracy
GNSS antenna
Coaxial cable
PTP grandmaster with GNSS receiver
Good enough ? Optimized solution
OSA 5405-MB
 Integrated antenna
 Robust multi-band receiver
 Ruggedized design
 PTP/NTP directly from the
antenna
PTP/NTP
© 2021 ADVA. All rights reserved.
4
Improving accuracy of GNSS receivers
• Communication in L1 and L2 band
• Dual measurements make it possible to compensate for ionospheric delay variations
• Multi-band GNSS receivers achieve time accuracy of better than 10ns (typical)
Multi-band GNSS receiver
Lower
L-band
Upper
L-band
Delay
difference
Ionospheric
disturbance
0
10
20
30
40
50
ns
Ionospheric daily delay variation
0:00 3:00 6:00 9:00 12:00 15:00 18:00 21:00 0:00
Nanosecond time accuracy with multi-band GNSS receivers
© 2021 ADVA. All rights reserved.
5
Meeting PRTC-B requirements according to G.8272
TE
[ns]
MAX MTIE
[ns]
MAX TDEV
[ns]
PRTC-A +/-100 100 30
PRTC-B +/-40 40 5
From PRTC-A to PRTC-B requires
more stringent TE and MTIE/TDEV
Improving accuracy
Now there’s an efficient and cost-effective alternative
Multi-band GNSS receiver
with nanosecond-level
timing accuracy
High-performance
oscillators can smooth
ionospheric delay variations
© 2021 ADVA. All rights reserved.
6
Simplifying outdoor GNSS installation
OSA 5405 multi-band (outdoor)
Multi-band GNSS
antennas
L1+L2
+
PTP GM
NTP server
1G Ethernet fiber (SFP)
MNG+PTP+NTP+SyncE
1G Ethernet (RJ-45)
PoE+MNG+PTP+NTP+SyncE
Network and status LEDs
© 2021 ADVA. All rights reserved.
7
• PRTC-B in mobile networks
• Precise synchronization with power utilities
• Smart multi-band antenna for ePRTC sites
Applications
Key features
• Real PRTC-B GM and NTP server integrated in
the GNSS antenna
• Accuracy within +/-40nsec from UTC
• Multi-band (L1+L2) GNSS receivers
• Comprehensive sync and GNSS assurance
• Reduces installation costs
• Advanced jamming and spoofing detection
• Ensemble Sync Director for ease of operation
OSA 5405-MB smart GNSS antenna
First PRTC-B multi-band smart antenna
© 2021 ADVA. All rights reserved.
8
OSA 5405-MB smart GNSS antenna
• Easy upgrade to PRTC-B GM
• Multi-band/multi-constellation GNSS
receiver
• Significantly reduces outdoor GNSS
installation costs
• No need to calibrate for cable delay (PTP
TWTT)
• Extended cable distance using fiber interface
• Advanced jamming and spoofing detection
• Can work with up to four concurrent GNSS
constellation – improves resilience and
increases the number of observed satellites
even in urban canyons
Key advantages
Less cabling – faster installation – simpler operation
© 2021 ADVA. All rights reserved.
9
Supporting multiple applications
PTP
G.8265.1
PTP/NTP
enterprise
PTP
G.8275.2
PTP
G.8275.1
2G/3G/4G/
5G FDD BS
DOCSIS 3.1,
small cells
and APTS
MIFID ii
5G/LTE
TDD/LTE-A BS
and small cells
PTP
power
Power utilities
PTP
broadcast
Studio
© 2021 ADVA. All rights reserved.
10
Example – macro base station sync with PRTC-B
© 2021 ADVA. All rights reserved.
11
Multi-constellation Dual-band
Hardware-supported attack detection
AI/ML-assisted monitoring
e.g., Galileo e.g., GPS
Improving resilience by using
multiple GNSS technologies
Ionospheric disturbance
is compensated for
better accuracy
Frequency 1
Analyzing GNSS data to
predict issues and
counteract proactively
Monitoring GNSS signals from
different sources to identify
attacks at receiver
Frequency 2
Making satellite-timing robust and accurate
GNSS timing can also be backed up further with PTP/SyncE over packet network
PTP
© 2021 ADVA. All rights reserved.
12
Ensemble Sync Director – GNSS assurance
GNSS monitoring and fault analysis
Health status of all
GNSS receivers
Identifying blind spots
jamming and spoofing
Smart analysis over
time
Transparent GUI
Optimizes
antenna
positioning
and receiver
setting
Performance
monitoring
Root cause
analysis
© 2021 ADVA. All rights reserved.
13
Summary
Making synchronization robust, accurate and easy
First smart antenna with integrated multi-band
receiver
Providing PRTC-B accuracy (40ns from UTC)
Robust GNSS timing combines spoofing and
jamming detection with network-based
backup
Multi-technology synchronization devices
featuring PTP, NTP and SyncE
Environmentally hardened device with several
mounting options for ease of installation
Thank you
IMPORTANT NOTICE
The content of this presentation is strictly confidential. ADVA is the exclusive owner or licensee of the content, material, and information in this presentation. Any reproduction, publication or reprint, in whole or in part, is strictly prohibited.
The information in this presentation may not be accurate, complete or up to date, and is provided without warranties or representations of any kind, either express or implied. ADVA shall not be responsible for and disclaims any liability for any loss or damages, including without limitation,
direct, indirect, incidental, consequential and special damages, alleged to have been caused by or in connection with using and/or relying on the information contained in this presentation.
Copyright © for the entire content of this presentation: ADVA.
info@adva.com

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OSA 5405-MB – precise edge timing for 5G and smart cities

  • 1. OSA 5405-MB – precise edge timing for 5G and smart cities April 2021 Combining a multi-band GNSS antenna with a PTP grandmaster and NTP server
  • 2. © 2021 ADVA. All rights reserved. 2 The better is the enemy of the good Requirements: Highly precise and resilient synchronization in an outdoor application Mobile base stations Access to accurate, secure timing under difficult environmental conditions Industrial control, manufacturing Robust timing, frequently limited access to roof space for antenna mounting Finance, data centers GNSS antenna Coaxial cable PTP grandmaster with GNSS receiver Good enough ?
  • 3. © 2021 ADVA. All rights reserved. 3 Synchronizing sites and applications Requirements: Simpler installation Integrated solution Higher accuracy GNSS antenna Coaxial cable PTP grandmaster with GNSS receiver Good enough ? Optimized solution OSA 5405-MB  Integrated antenna  Robust multi-band receiver  Ruggedized design  PTP/NTP directly from the antenna PTP/NTP
  • 4. © 2021 ADVA. All rights reserved. 4 Improving accuracy of GNSS receivers • Communication in L1 and L2 band • Dual measurements make it possible to compensate for ionospheric delay variations • Multi-band GNSS receivers achieve time accuracy of better than 10ns (typical) Multi-band GNSS receiver Lower L-band Upper L-band Delay difference Ionospheric disturbance 0 10 20 30 40 50 ns Ionospheric daily delay variation 0:00 3:00 6:00 9:00 12:00 15:00 18:00 21:00 0:00 Nanosecond time accuracy with multi-band GNSS receivers
  • 5. © 2021 ADVA. All rights reserved. 5 Meeting PRTC-B requirements according to G.8272 TE [ns] MAX MTIE [ns] MAX TDEV [ns] PRTC-A +/-100 100 30 PRTC-B +/-40 40 5 From PRTC-A to PRTC-B requires more stringent TE and MTIE/TDEV Improving accuracy Now there’s an efficient and cost-effective alternative Multi-band GNSS receiver with nanosecond-level timing accuracy High-performance oscillators can smooth ionospheric delay variations
  • 6. © 2021 ADVA. All rights reserved. 6 Simplifying outdoor GNSS installation OSA 5405 multi-band (outdoor) Multi-band GNSS antennas L1+L2 + PTP GM NTP server 1G Ethernet fiber (SFP) MNG+PTP+NTP+SyncE 1G Ethernet (RJ-45) PoE+MNG+PTP+NTP+SyncE Network and status LEDs
  • 7. © 2021 ADVA. All rights reserved. 7 • PRTC-B in mobile networks • Precise synchronization with power utilities • Smart multi-band antenna for ePRTC sites Applications Key features • Real PRTC-B GM and NTP server integrated in the GNSS antenna • Accuracy within +/-40nsec from UTC • Multi-band (L1+L2) GNSS receivers • Comprehensive sync and GNSS assurance • Reduces installation costs • Advanced jamming and spoofing detection • Ensemble Sync Director for ease of operation OSA 5405-MB smart GNSS antenna First PRTC-B multi-band smart antenna
  • 8. © 2021 ADVA. All rights reserved. 8 OSA 5405-MB smart GNSS antenna • Easy upgrade to PRTC-B GM • Multi-band/multi-constellation GNSS receiver • Significantly reduces outdoor GNSS installation costs • No need to calibrate for cable delay (PTP TWTT) • Extended cable distance using fiber interface • Advanced jamming and spoofing detection • Can work with up to four concurrent GNSS constellation – improves resilience and increases the number of observed satellites even in urban canyons Key advantages Less cabling – faster installation – simpler operation
  • 9. © 2021 ADVA. All rights reserved. 9 Supporting multiple applications PTP G.8265.1 PTP/NTP enterprise PTP G.8275.2 PTP G.8275.1 2G/3G/4G/ 5G FDD BS DOCSIS 3.1, small cells and APTS MIFID ii 5G/LTE TDD/LTE-A BS and small cells PTP power Power utilities PTP broadcast Studio
  • 10. © 2021 ADVA. All rights reserved. 10 Example – macro base station sync with PRTC-B
  • 11. © 2021 ADVA. All rights reserved. 11 Multi-constellation Dual-band Hardware-supported attack detection AI/ML-assisted monitoring e.g., Galileo e.g., GPS Improving resilience by using multiple GNSS technologies Ionospheric disturbance is compensated for better accuracy Frequency 1 Analyzing GNSS data to predict issues and counteract proactively Monitoring GNSS signals from different sources to identify attacks at receiver Frequency 2 Making satellite-timing robust and accurate GNSS timing can also be backed up further with PTP/SyncE over packet network PTP
  • 12. © 2021 ADVA. All rights reserved. 12 Ensemble Sync Director – GNSS assurance GNSS monitoring and fault analysis Health status of all GNSS receivers Identifying blind spots jamming and spoofing Smart analysis over time Transparent GUI Optimizes antenna positioning and receiver setting Performance monitoring Root cause analysis
  • 13. © 2021 ADVA. All rights reserved. 13 Summary Making synchronization robust, accurate and easy First smart antenna with integrated multi-band receiver Providing PRTC-B accuracy (40ns from UTC) Robust GNSS timing combines spoofing and jamming detection with network-based backup Multi-technology synchronization devices featuring PTP, NTP and SyncE Environmentally hardened device with several mounting options for ease of installation
  • 14. Thank you IMPORTANT NOTICE The content of this presentation is strictly confidential. ADVA is the exclusive owner or licensee of the content, material, and information in this presentation. Any reproduction, publication or reprint, in whole or in part, is strictly prohibited. The information in this presentation may not be accurate, complete or up to date, and is provided without warranties or representations of any kind, either express or implied. ADVA shall not be responsible for and disclaims any liability for any loss or damages, including without limitation, direct, indirect, incidental, consequential and special damages, alleged to have been caused by or in connection with using and/or relying on the information contained in this presentation. Copyright © for the entire content of this presentation: ADVA. info@adva.com