Target MaxTE = 30ns for class C Telecom Boundary Clock (see slide 12) • See Appendix 3 for details on the sources of errors in IEEE 802 3 timestamping
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Target MaxTE = 30ns for class C Telecom Boundary Clock (see slide 12) • See Appendix 3 for details on these potential sources of errors in IEEE 802 3
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Class C certified Product line Deterministic Latency Multi-profile GNSS APTS For PTP unware Networks Better Accuracy Real Time Use Cases Smooth
BRKSPM
>Most legacy PTP Switches and Routers today only achieve max C) 3 hops Class A 7 hops Class B – Link budget 5/10 ns (345 ns cTE) Class A L B L
. thomas joergensen vitesse
PTP T-BC and/or T-TCs (Class C, D) G 8273 2, G 8273 3 Basestation GNSS Enhanced Ethernet Equipment Clocks, eEECs G 8262 1 Enhanced PRC
CX G Fronthaul Whitepaper
Class B: Adds synchronization • Class C plus • IEEE 1588 Precision Time Protocol (PTP) • Peer-to-peer messaging and multicast • Timestamp data and state
What LXI Class B Can Do
24 jan 2020 · Architectures • Clocks • PTP profiles 9 km propagation difference between eNBs/gNBs in FR1) Clock Class C from G 8273 2 is generally
Stefano Ruffini
29 jui 2018 · 3 1 Time and phase requirement classes 9 4 Requirements to Telecom Boundary Clocks (T-BC) and Telecom Time Slave Clocks (T-TSC)
AN IEEE Precision Time Protocol ITU T Standards
Slave Clocks in the RUs L > 17. • To build a practical C-RAN network for 5G applications
29 août 2019 are divided into four classes: Class A Class B
29 août 2019 are divided into four classes: Class A Class B
Class C certified. Product line. Deterministic. Latency. Multi-profile. GNSS & APTS. For. PTP unware. Networks. Better. Accuracy. Real Time. Use Cases.
8273.2 Class C and white box hardware must therefore have fully proven PTP and SyncE capabilities to the highest levels of accuracy. Furthermore
The IEEE 1588 PTP standards provide a wealth of how to implement PTP for the specific needs of ... For class C and D clocks study is ongoing with.
ITU-T G.8273.2 PTP T-BC Classes Note that Classes A B
8273.2 'Class C' and 'Class D' system time error performance requirements. 3. Page 4. Background Information. 4
To build a practical C-RAN network for 5G applications PTP Clock performance should be Class C or better Resulting Performance vs Target Performance Target MaxTE = 30ns for class C Telecom Boundary Clock (see slide 12) See Appendix 3 for details on the sources of errors in IEEE 802 3 timestamping
• Enables PTP (IEEE 1588v2) Class C/D at the system level • SyncE timing support • Software Development Kit (SDK) APIs simplify software integration at the system level • Compact 23 mm × 30 mm device package microchip com Summary META-DX2L is a multi-purpose Ethernet PHY supporting rates from 1 GbE to 800 GbE with a broad range of FEC
PTP Grand Master when connected to an external GNSS antenna With external timing it can function as a high-precision PTP Class C Boundary Clock with SyncE support The compact IP65 outside plant design of the C1216LO supports DC power and can be pole or wall mounted C1216LO
Class C T-BC/TC Synchronous Ethernet CPRI Gateway functionality CPRI-to-eCPRI conversion 3x10G CPRI Ports Physical and Environmental Dimensions: 305 mm x 155 mm x 410 mm (12 in x 6 in x 16 in ) Weight: 11 kg (24 lb) Operating Temperature: -40 to 149°F (-40 to 65°C) Storage Temperature: -40 to 158°F (-40 to 70°C)
3 Definitions C Subdomain Maps 4 Notation Convention D Ethernet UDP/IP Implementation 5 Datatypes E Bibliography 6 Protocol Overview 7 Protocol 8 Message Specifications 9 Conformance Tutorial on IEEE 1588 October 10 2005 Page 14
• PTP technology and its potential application have been verified in the Sprint Laboratory environment However using PTP across the AAV network to support In-door Pico cell synchronization is NOT verified at this time because of the lack of AAV’s on-Path support of PTP
What is a PTP profile?
“The purpose of a PTP profile is to allow organizations to specify specific selections of attribute values and optional features of PTP that, when using the same transport protocol, inter-work and achieve a performance that meets the requirements of a particular application.”
How do you calculate PTP time distribution?
PTP Time Distribution Mechanism PTP Master PTP Slave Roundtrip time = (t4 – t1) – (t3 – t2) Oneway delay = RTT/2 Message sent from PTP Master at time = t1 PTP Slave tunes itself (phase and frequency) so t2 = t1 RTT/2 t1 t2 t4 t3
What is PTP timestamp generation model?
PTP Timestamp Generation Model •A timestamp is generated at the time the “message timestamp point” crosses “reference plane”, which is the intersection between the network (i.e. the medium) and the PHY
What is GM (SSU PTP message s - BC T - BC (EEC)?
GM (SSU PTP message s - BC T - BC (EEC) (EEC) ( 3) a new PTP backup synchronizati path has been determined by the The PTP messages received are used again to synchronize the PTP clocks. - BC T - BC (EEC) (EEC) path .
Improving PTP Timestamping Accuracy on Ethernet Interfaces - Draft