© 2016 Microsemi Corporation 1
Power Matters.TM
Laying the Foundations for Phase Timing Eric Colard Head of Emerging Line of Business
Power Matters.TM 2 © 2016 Microsemi Corporation
Sync Evolution World Wide – what we see
What is happening § Globally operators have
rolled out LTE and are now planning or preparing for LTE-A phase delivery
§ USA § Japan, Korea § China, Taiwan § India § UK, Germany, France, Italy
Spain, Scandinavia § Turkey, Indonesia,
Philippines, Vietnam…..
Why § Need a stable frequency
network to support existing and future applications
§ Especially phase / time
§ Graceful migration of the Core SDH to SyncE / OTN
§ LTE, LTE-A, LTE Pro etc § Small cells & 5G hetnet § Distributed clocks
everywhere
Power Matters.TM 3 © 2016 Microsemi Corporation
Mobile Wireless Synchronization Requirements
MobileRF InputintoBaseSta3on InterCellAlignment
50ppb16ppbGSM,WCDMA
LTE-FDD
LTE-FDD(frequency)LTE-TDD(Phase)
Most LTE-A services require inter cell phase
sync (eICIC, CoMP, eMBMS, MBSFN)
±1.1µs
50ppb
±1.5µs(phase)
A few LTE-A functions do not require phase, Carrier Aggregation for example does not
Power Matters.TM 4 © 2016 Microsemi Corporation
The Source of Traceable Time - Primary Time Reference Clock (PRTC) G.8275
• Frequency requires a Primary Reference Clock (PRC)
• Usually a Cesium clock but can also be GPS
§ Time/Phase requires a Primary Reference Time Clock (PRTC)
§ The PRTC reference must come from GNSS
§ The PRTC output must be traceable to UTC.
±100ns
Transport,Noise,&NetworkAsymmetry eNB
PRTC ±400nsec±1000nsec
TP5000
TP2700
Microsemi PRTC
Power Matters.TM 5 © 2016 Microsemi Corporation
Time/Phase : The Time Error Budget
±100ns
Transport,Noise,&NetworkAsymmetry eNB
PRTC ±400nsec
±1000nsec
SOURCE OF TIME
USE OF TIME
TotaleNBInterCellTimeError+/-1.5µsecfromUTC
NetworkErrorBudget+/-1µsec
GPS
TRANSPORT OF TIME
PRC
Power Matters.TM 6 © 2016 Microsemi Corporation
G.8275.1 Time Error Budget
Upto10TimeBoundaryClocks
TotalendtoendTimeErrorBudget+/-1.5usec
Network Equipment eNB
networkasymmetry
±500ns
TimeErrorPRTCtoeNB+/-1usec
+/-400nsforeNB
slaveclock50ns
±100nsPRTC
PRTC
±250ns ±250ns
dynamic3meerror
Power Matters.TM 7 © 2016 Microsemi Corporation
G.8275.1 Time Profile: Full On Path Support
Attributes • PTP Multicast over Layer 2 network • “Time Boundary Clock” (T-BC) on every network element • Physical layer frequency support from syncE (needs a PRC) • Max Hops: 10 (20 is currently theoretical) • Provides “hop by hop” engineering guideline for time/phase as per SEC/EEC
PRC
GM
End Equipment
Time Slave Clock
T-SC PRTC GNSS
Packet Network with Embedded Boundary Clocks
T-BC T-BC T-BC T-BC
Power Matters.TM 8 © 2016 Microsemi Corporation
G.8275.2 Time Profile:Partial On Path Support
• In G.8275.2 we place a Boundary Clock at the most effective point on the
transport path • PTP Unicast mode “Segments” are added together to make an end-to-end
sync chain • Some may cross legacy routers
PRC
GM
End Equipment
Time Slave Clock
T-SC PRTC GNSS
BC
Unicast Segment 1 Unicast Segment 2
Asynchronous Packet Network
Power Matters.TM 9 © 2016 Microsemi Corporation
§ Time Error accumulates as packets go across the network
§ ITU-defined budget for Transport Network accumulated time error is +/-1usec maximum to deliver the Clock to the eNodeB
§ Constant time error can easily be corrected with a fixed offset
§ Dynamic time error from
Summary: Time Error Budget The Key to Time/Phase
Asymmetry is the biggest problem for engineering phase on a network
Switch router element inherent noise Uplink downlink asymmetry Packet Buffering delays
Power Matters.TM 10 © 2016 Microsemi Corporation
Asymmetry : Solutions
§ Not completely solved by using Boundary Clocks § Manually measure each link and configure offset
compensation
§ Microsemi proposed and offers : • Asymmetry compensation : automatically calibrate the sync path,
using a GNSS reference • Advanced multi-sync clock functions to deliver these frequency and
time services • Minimise asymmetry by placing PRTC clocks close to the eNB
Power Matters.TM 11 © 2016 Microsemi Corporation
The IGM Family Expanded IGM Grand Master Timing Options for Network Edge Deployments
IGM1100iReinventedIndoorSmallCell
Deployment
• LowDeploymentCost• SmallFormFactor• HighPerformance
EnhancedIndoorIGM1100i Solu3onsforoutdoordeployment
IGM1100iSinglemodelforwallandceilingmounBng
IGM1100oWeatherproofIGMforoutdoorinstallaBons
IGM1100xIGMwithexternalantennaforspecific
applicaBons
Power Matters.TM 12 © 2016 Microsemi Corporation
Key Synchronization Requirements § eNodeBs require accurate timing § Timing is dependent on GNSS
Critical Problems
Challenges for Indoor Deployment
High Cost of GPS antenna cabling Roof access/rental fees Installation Costs through several floors Operators requesting less devices to deploy and manage – combining functions into single device
Offices with Small Cell
1588 Grandmaster in Server Room
GNSS Antenna
Power Matters.TM 13 © 2016 Microsemi Corporation
Traditional vs. Innovative models
NoOutdoorGNSS
Antenna
SimilareasyinstallaBonasWiFiAccessPoint
20 m 150 m 230m
GNSS Kit $1,000 $2,500 $2,800
N.A, Europe Emerging Large Cities
Capex, Opex
$5K to $20K $1,200 to $5K
$25K up to $65K
Power Matters.TM 14 © 2016 Microsemi Corporation
§ More clients : max was 8, now is 16
§ More management options : • CLI over SSH • Pre defined IP @ vs. DHCP
§ More resiliency • Config data stored in non-volatile memory • 2 antennas, Universal mounting vs. wall or ceiling, same unit
§ More Sync Capabilities • SyncE Output • Telecom 2008 profile • Default profile
Enhancements for Indoor version
Power Matters.TM 15 © 2016 Microsemi Corporation
North America Field trial
Power Matters.TM 16 © 2016 Microsemi Corporation
§ Metal “Cabinet” § No Windows § Challenges expected
§ Worked great
§ Door Open • 10 satellites
§ Door Closed: • 7 Satellites
Real-Life – Indoor working unexpected case
Power Matters.TM 17 © 2016 Microsemi Corporation
Use Case – windows or no windows
§ Melia in Sevilla § Conference Room § No Windows § Sub-Ground Floor : -1 § No A-GNSS § Worked great
§ Gherkin, London § Plenty of Windows § High Floor § Challenging
Power Matters.TM 18 © 2016 Microsemi Corporation
Introducing Outdoor Version IGM-1100o
Addressing scenarios : deep indoor, urban canyons, etc
Power Matters.TM 19 © 2016 Microsemi Corporation
§ 1588 PTP GM is integrated with Antenna (on roof)
§ Cabling for GNSS antenna to master not needed - Deployment Cost savings, Ethernet cabling vs GPS cable
§ Common Software with Indoor version (A-GNSS not needed)
§ Environmental & Temp Range benefits - Operating -40C to +70C
§ IGM Outdoor complies with GR-3108, GR-108, GR-63
§ PoE § Plug & Play
Value of Outdoor version
Power Matters.TM 20 © 2016 Microsemi Corporation
§ IGM Outdoor (1100o) connected to indoor PoE Midspan
§ Outdoor installations should take care of lighting protection system: • Indoor PoE should be isolated – needs to be single port injector • Primary surge protection device needed as close as possible to inlet
to building & connected to earth ground : PD-OUT/SP11 • Secondary surge protection in the 1 port PoE injector :
PD-9001G-40/SP Midspan
Guidelines – IGM outdoor & PoE indoor
PD-9001G-40/SP PD-OUT/SP11
Power Matters.TM 21 © 2016 Microsemi Corporation
§ IGM-1100o connected to Outdoor PoE switch § Only makes sense if there are more than 1 outdoor devices, for instance
1 IGM Outdoor and 1 outdoor security camera § For instance 2 port PDS-102GO or 4 port PDS-104GO § IGM Outdoor complies with GR-3108, GR-108, GR-63 so no need for
optional PD-OUT/SP11 § Depending length of cable, if it is short there is no need for 2 units PD-
OUT/SP11, if it is long there is a need for 2 PD-OUT/SP11 (one to protect IGM, 1 to protect inlet to building)
Guidelines – IGM Outdoor, PoE outdoor
PD-OUT/SP11 PDS-102GO Outdoor PoE Switch
PDS-104GO Outdoor PoE Switch
Power Matters.TM 22 © 2016 Microsemi Corporation
§ Cabinet or Hut with devices serving Pico or Micro eNodeBs
Serving eNodeBs – not Temp Controlled
On Pole if needed if vandalism concerns
Outdoor IGM IGM-1100o
Power Matters.TM 23 © 2016 Microsemi Corporation
§ Temperature- Controlled Cabinet/Hut or office/rack § Serving Pico or Micro eNodeBs
Serving eNodeBs at very edge
IGM connected to external GNSS antenna IGM-1100x
Power Matters.TM 24 © 2016 Microsemi Corporation
§ Auto-Configuration Server (ACS) – TR069 • Free, limited features, demo version • Commercial version for deployments • Auto-configuration and network interactions mimic processes and
systems used by small cells • TR069 server, DNS server, etc
§ CLI over SSHv2 • For environments where no ACS available • Limited capabilities. Enhancements coming in v2
§ SNMP • TimePictra used for SNMP traps
§ TP10 & ACS integration on roadmap
Management
Power Matters.TM 25 © 2016 Microsemi Corporation
Timelines & Product Updates
PressReleaseandProductLaunch@MobileWorldCongress
Prototypes(IndoorUniversal,MiniGM
External)
Prototype(OutdoorIGM)
GeneralRelease(OutdoorIGM)
Feb2016 Mar2016 Apr2016 July2016
IndoorUniversal
MiniGM
OutdoorVersion
*V2SoQwareUpdate–July2016
GeneralRelease(IndoorUniversal&MiniGMExt.)
Power Matters.TM 26 © 2016 Microsemi Corporation
§ Phase timing becoming essential § Microsemi has a lot of relevant practical experience § Relying on embedded sync solutions isn’t adequate § Dedicated master at mobile edge is cost effective and easy
to deploy § IGM Portfolio offers choice for various use cases
Summary
Finalist
Power Matters.TM 27 © 2016 Microsemi Corporation
Microsemi Corporation (MSCC) offers a comprehensive portfolio of semiconductor and system solutions for communications, defense & security, aerospace and industrial markets. Products include high-performance and radiation-hardened analog mixed-signal integrated circuits, FPGAs, SoCs and ASICs; power management products; timing and synchronization devices and precise time solutions, setting the world's standard for time; voice processing devices; RF solutions; discrete components; enterprise storage and communication solutions, security technologies and scalable anti-tamper products; Ethernet solutions; Power-over-Ethernet ICs and midspans; as well as custom design capabilities and services. Microsemi is headquartered in Aliso Viejo, Calif., and has approximately 4,800 employees globally. Learn more at www.microsemi.com
©2016 Microsemi Corporation. All rights reserved. Microsemi and the Microsemi logo are registered trademarks of Microsemi Corporation. All other trademarks and service marks are the property of their respective owners.
Microsemi makes no warranty, representation, or guarantee regarding the information contained herein or the suitability of its products and services for any particular purpose, nor does Microsemi assume any liability whatsoever arising out of the application or use of any product or circuit. The products sold hereunder and any other products sold by Microsemi have been subject to limited testing and should not be used in conjunction with mission-critical equipment or applications. Any performance specifications are believed to be reliable but are not verified, and Buyer must conduct and complete all performance and other testing of the products, alone and together with, or installed in, any end-products. Buyer shall not rely on any data and performance specifications or parameters provided by Microsemi. It is the Buyer’s responsibility to independently determine suitability of any products and to test and verify the same. The information provided by Microsemi hereunder is provided “as is, where is” and with all faults, and the entire risk associated with such information is entirely with the Buyer. Microsemi does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any other IP rights, whether with regard to such information itself or anything described by such information. Information provided in this document is proprietary to Microsemi, and Microsemi reserves the right to make any changes to the information in this document or to any products and services at any time without notice.
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