The company’s TimePictra 11 timing infrastructure management system works with its BlueSky GNSS Firewall to create a unified view for a more secure network timing architecture
Image: Microchip Technology
Microchip Technology Inc. has integrated its BlueSky GNSS Firewall with its TimePictra 11 synchronization monitoring and management platform to protect 5G networks and other critical timing infrastructure from GPS signal jamming and spoofing while providing single-console visibility across the entire timing architecture.
The move was made to meet the needs of 5G wireless infrastructure, which has more complex and higher density synchronization needs than previous generation networks. 5G is highly dependent on the integrity of live-sky GNSS timing signals.
“Microchip’s TimePictra system improves overall situational awareness by managing network timing synchronization as well as our GNSS firewall that improves a network’s resilience through real-time GPS threat detection and mitigation,” said Randy Brudzinski, vice president, Frequency and Time Systems business unit. “Our solution’s scalability is particularly valuable for mobile operators who can use TimePictra to monitor GNSS-based source clocks along with our secure network-based timing distribution solutions to deploy a highly resilient timing architecture for their transition to 5G.”
In addition to requiring precise timing from GNSS sources, critical infrastructure operators need accurate timing to be distributed across their networks so they can ensure reliable performance and service delivery. TimePictra provides full control and monitoring for resilient timing architectures created with Microchip’s broad product portfolio, including its TimeProvider 4100 grandmasters for 5G network synchronization.
TimePictra also monitors the health and performance of these networks’ distributed Precision Time Protocol (PTP) client clocks. Integrating BlueSky GNSS Firewall management into the TimePictra console view gives operators a unified picture of the entire timing architecture and all timing sources.
Beyond supporting 5G deployments, TimePictra provides aviation, railway and maritime ports with a regional, national or global view of GNSS reception. TimePictra with BlueSky GNSS Firewall monitors key GNSS observables to detect live-sky signal anomalies and deliver early alerting so that operators can engage alternate procedures that do not rely on GNSS. These capabilities are increasingly important when public safety depends on position and navigation for daily operations.
Microchip’s TimePictra timing infrastructure management system with its Blue Sky GNSS Firewall is available today.
IEEE 1588 precise timing grandmaster with gateway clock now offers software-based redundancy
Photo: Microchip
For today’s critical infrastructure providers — 5G wireless networks, smart grids, data centers, cable and transportation services — a fundamental need exists for a redundant, resilient and secure precise timing and synchronization solution.
Microchip Technology Inc.’s TimeProvider 4100 Release 2.2 grandmaster provides a new level of resiliency with the introduction of an innovative redundancy architecture in addition to support for a multi-band GNSS receiver and enhanced security to ensure always-on precise timing and synchronization.
Redundancy is key for infrastructure providers to ensure uninterrupted services. Infrastructure deployments previously relied on hardware redundancy to avoid service disruption despite costly modular architectures. Microchip’s TimeProvider 4100 Release 2.2 grandmaster provides redundancy via software implementation, enabling flexible deployment and lower hardware costs without sacrificing ports.
In addition, the TimeProvider 4100 Release 2.2 grandmaster introduces an increased level of resiliency by supporting a new GNSS multi-band, multi-constellation receiver to protect against time delay resulting from space weather, solar events and other disruptions that may impact critical infrastructure services.
Multi-band GNSS is particularly important for the highest levels of accuracy, including primary reference time clock class B (PRTC-B, 40 ns) and enhanced primary reference time clock (ePRTC, 30 ns).
With a focus on security solutions across its technology portfolio, Microchip’s new TimeProvider 4100 Release 2.2 grandmaster adds support for RADIUS and TACACS+ as well as new anti-jamming and anti-spoofing capabilities.
“Resilient, redundant and secure precise timing and synchronization solutions are necessary to mitigate security risks to critical infrastructure,” said Randy Brudzinski, vice president and general manager of Microchip’s frequency and time business unit. “This latest release brings an innovative software redundancy that enables always-on technology as well as support for multi-band GNSS to eliminate ionospheric time error delays. It provides new key security, anti-jamming and anti-spoofing so critical infrastructure services can be accessed only by authorized, authenticated personnel.”
In addition, the TimeProvider 4100 Release 2.2 grandmaster provides a super oven controlled crystal oscillator (OCXO) option for enhanced holdover capabilities in case of GNSS disruption.
The TimeProvider 4100 Release 2.2 grandmaster is a family of products with hardware expansion modules for legacy fan-out or Ethernet fan-out with 10 Gigabit Ethernet support. It can be configured in specific operation modes to act either as a gateway clock, a high-performance boundary clock or an ePRTC.
The TimeProvider 4100 Release 2.2 grandmaster embeds additional Microchip technology including its OCXO, super OCXO, rubidium atomic clock, field-programmable gate arrays (FPGAs), Ethernet switch, synthesizers and cleaning oscillators.
The TimeProvider 4100 is part of Microchip’s Virtual Primary Reference Time Clock (vPRTC) product portfolio, offering end-to-end precise time and synchronization solutions. These include Cesium atomic clocks for source of frequency and time, the BlueSky GNSS Firewall for security, TimeProvider 4100 high-performance boundary clock and TimeProvider 4100 Gateway clocks, as well as the TimePictra software suite, which manages the end-to-end precise time architecture across all Microchip timing products.
Microchip’s TimeProvider 4100 Release 2.2 grandmaster offers several options for software and hardware support including installation, sync audits, network engineering and 24/7 worldwide support. It is available now for both new and already-deployed systems.
Image: ChakisAtelier / iStock /Getty Images Plus /Getty Images
By Eric Colard
Head of Emerging Products, Frequency & Time Systems
Microchip Technology
Mobile operators are investing heavily in the deployment of LTE-Advanced and 5G networks that will transform cellular communications and connectivity.
They face big risks, though: the high-performance mobile services delivered over these networks are extremely dependent on precise time from GPS and other similar regional constellations broadly known as GNSS so they can synchronize radios, enable new applications and minimize interference.
If GPS/GNSS becomes unavailable due to jamming, spoofing, failures or other events, the resulting service disruption would have a catastrophic impact on system performance.
Just like the energy grid is extremely vulnerable to climate, heat, winds and dry vegetation that can lead to fires on a large scale as seen in California recently, 5G networks are vulnerable to disruptions in the distribution of precise time that can lead to total systems outage.
New technologies enable mobile operators to protect their networks from these threats. These technologies make use of existing deployments while creating new architectures for distributing very high-precision time over long distances. They minimize additional costs while offering the necessary performance to meet the demanding requirements of 5G.
Technology landscape
The latest LTE-Advanced and 5G mobile networks bring tremendous capacity and bandwidth gains that are being used to deliver new services to consumers, industries, cities and specific market segments. From high-bandwidth video delivery for smartphones to autonomous vehicles, smart cities and the internet of things (IoT) for smart factories, these new services all rely on the synchronization of numerous sensors, base stations and other devices.
Accomplishing this requires the delivery of very precise time over long distances. Without it, mobile operators cannot maximize deployment investments by minimizing disruptions and risk.
They also must devise plans they can leverage in case of GPS/GNSS malfunction. At the same time, they need to take advantage of optical networks and other existing infrastructure so that they don’t require expensive new investment in dark fiber.
Photo: iStock.com/NicoElNino
Meeting stringent requirements
Standards bodies have defined stringent requirements for precise time and synchronization such as Prime Reference Time Clock (PRTC), which includes 100-nanosecond (ns) PRTC Class A (PRTC-A), 40-ns PRTC Class B (PRTC-B) and 30-ns enhanced PRTC (ePRTC) performance specifications.
To meet these requirements, a high-quality source of time is an absolute must and a very resilient, efficient and performant distribution mechanism is required to transport time from the source to the various devices consuming time (for example, base stations, sensors and vehicles).
The problem with relying on GPS/GNSS for meeting these requirements is that its deployment can be expensive given the increasing densification of endpoints. There is also a technical vulnerability associated with GNSS receivers located at cell sites.
If the GNSS receiver cannot track satellites properly for whatever reason, the radio must be removed from service quickly to avoid interference issues due to the short holdover period of the oscillator technologies used in the radios. Because of these technical and financial considerations, operators are very motivated to find solutions where GNSS dependency is reduced or even eliminated at many locations.
Another set of considerations for operators includes:
the distribution of time from the source to the endpoints using the network;
the network nodes; and
the various synchronization capabilities these network nodes can support.
Typically, a precision time protocol (PTP) grandmaster is located at the beginning of the timing chain and complies with 100ns PRTC-A or 40-ns PRTC-B so it can deliver precise time to the end of the chain within +/-1.5 microseconds. The network nodes on the path typically embed a Time Boundary Clock (T-BC) capability that meets either Class A (50-ns) or Class B (25-ns).
A new type of time-distribution architecture is needed to address these requirements and considerations so operators can protect their mobile network against GNSS disruption and distribute precise time over long distances for national coverage. This architecture must also deliver the necessary performance to meet end-to-end budgets for 5G needs.
A different time-distribution architecture
There are multiple capabilities a high-precision time-distribution architecture should feature so that operators can most effectively mitigate GPS/GNSS vulnerabilities and solve other challenges in their 5G networks. The architecture should:
leverage the existing optical network (thus avoiding high cost dark fiber expenses)
use a dedicated lambda in order to transport time in the most rapid manner
protect, to the utmost level, a redundant source of time that meets the highest, 30ns ePRTC performance and uses a combination of Cesium and GNSS as the source of time
have two directions for the flow of time (East and West) so that a redundant path can be leveraged in case of any issues along the way from source to endpoint
have a chain of high-precision boundary clocks (HP BCs) that can meet the highest level of performance defined by today’s standards (T-BC Class D 5ns)
A multi-domain architecture of this type offers the redundant, sub-microsecond end-to-end timing capabilities that are required to affordably deliver the high performance, 5-nanosecond per node distribution of precise time over hundreds of miles.
An example of this type of solution is Microchip’s TimeProvider 4100, which can be configured as either an ePRTC at the source of the timing chain with PRTC-A and PRTC-B time-delivery capabilities to various end nodes, or an HP BC on the optical network path.
This type of product can also be configured for application-specific requirements, end to end, with up to nanosecond precision time-delivery capabilities over long distance.
Assuring precise timing
The success of a coming generation of high-performance mobile services will depend on how well operators address today’s critical GPS/GNSS vulnerabilities. Jamming, spoofing, failures or other events can disrupt the precise GPS/GNSS timing that 5G networks need for synchronizing radios, enabling applications and minimizing interference.
The latest high-precision time-distribution architectures mitigate these risks with minimal additional cost and give operators the performance they need to support demanding new 5G services ranging from IoT-based applications to receiving high-bandwidth video on smartphones.
Microchip has released version 2.1 for its TimeProvider 4100 timing grandmaster.
Eric Colard leads product line management for Microchip’s TimeProvider 4100 and Integrated GNSS Master solutions for the telecom, utility and other industries. Colard’s leadership includes product definition, customer interaction, outbound promotions and business development.
He has held successive technical and leadership roles at technology companies in the U.S. and Europe. He began his career as an engineer in the networking arena on X.25, frame relay and other protocols at companies including Alcatel and Cap Sesa Telecom. He later held successive product management and business development leadership roles in networking, security, and other areas at Novell, Tumbleweed, FaceTime and Vernier Networks.
As the industry rapidly progressed, Colard increasingly became involved in wireless data compression and TCP/IP optimization. In 2007 he joined Symmetricom and architected and built the SyncWorld ecosystem with partners Alcatel-Lucent, Ericsson, Nokia Siemens and Cisco. Through acquisition Symmetricom became part of Microsemi, which today is part of Microchip.
Colard holds bachelor of science and master of science degrees in computer science, both from Ecole Nationale Superieure des Telecommunications (now Telecom ParisTech) in Paris, France. He is a member of the Metro Ethernet Forum (MEF), Open Compute, Telecom Infra Project and Small Cell Forum. He has received an award for his industry contributions from the Small Cell Forum.
Precise timing grandmaster with gateway clock and high-performance boundary clock enhances 5G mobile network phase protection
To help 5G mobile providers, cable operators and utility providers ensure phase delivery, protection and synchronization even when GNSS is offline, jammed or spoofed, Microchip Technology Inc. has released software version 2.1 for its TimeProvider 4100 precision timing grandmaster.
TimeProvider 4100 is a 1588 grandmaster including support for the latest ITU-T G.8275.1 and G.8275.2 1588 phase profiles, complemented by extensive port fan-out for PTP, Network Time Protocol (NTP), SyncE, and E1/T1.
Software release 2.1 builds on earlier versions by adding key software enhancements providing a virtual Primary Reference Time Clock (vPRTC). Virtual PRTC provides the ability to design a redundant precise time distribution architecture for phase protection over an optical network.
Until recently the main source of precise time has been GPS and other constellations that comprise GNSS. Deployment of GNSS, however, can be costly for service providers given the costs associated with upgrading to GNSS-capable receivers and antennae as well as increasing densification of end points.
As a result, telecom, cable and utility operators deploying vPRTC benefit from solutions where GNSS dependency is reduced or eliminated. Following are key features of the new vPRTC functionality:
Leverages the existing optical network, avoiding high-cost dark fiber expenses
Uses a dedicated lambda to transport time precisely and securely
Provides a high-performance, redundant source of time through enhanced PRTC (ITU-T G.8272.1)
Allows bidirectional, precise time flows (east and west)
Chains together high-precision, multi-domain, high-performance boundary clocks that meet today’s standards (T-BC Class D, as defined by ITU-T G.8273.2)
Microchip’s vPRTC multi-domain architecture is a cost-effective solution providing a high-performance, redundant, sub-5 nanosecond distribution of precise time over regional and national networks.
In addition, Release 2.1 introduces Network Time Protocol daemon (NTPd) with Message Digest (MD5) security algorithm.
TimeProvider 4100 2.1 meets PRTC-B performance standards (per ITU-T G.8272) and supports 1G and 10G, NTP and PTP in a single form-factor system. TimeProvider 4100 2.1 is available now for both new and already deployed systems.
Microchip Technology Inc., via its Microsemi subsidiary, has added the TimeProvider 4100 Release 2.0 to its Precision Time Protocol (PTP) PackeTime portfolio.
TimeProvider keeps services operating through GNSS lapses due to vulnerabilities such as jamming, spoofing or loss of signal. It is also designed to meet one of the biggest 5G network deployment challenges —synchronizing higher volumes of more densely packed base stations.
Microchip is also introducing Release 3.0 to its Integrated GNSS Master (IGM) family.
TimeProvider 4100. Release 2.0 adds 10 Gigabit Ethernet support, a boundary clock operation mode that lowers operational costs, and other enhancements to improve how timing flows are distributed from multiple sources to a network’s base stations and other endpoints.
The 72-channel GNSS receiver coupled with Microsemi’s patented active thermal compensation technology provides excellent accuracy of <10 ns RMS to UTC (USNO). With the time source provided through GNSS satellite input, it is essential to provide flexible support for constellations of choice depending on the region. TimeProvider 4100 supports GPS, GLONASS, BeiDou, Galileo, QZSS, and SBAS in its standard version.
TimeProvider 4100 2.0 with its 10 GE expansion module has been selected by SK Telecom in Korea for its delivery of 5G services in the Seoul metropolitan area and Chungcheong province.
IGM 3.0. For service providers that need to deploy more compact PTP 1588 v2 Grandmasters to fewer base stations closer to the network’s edge, Microchip is also introducing Release 3.0 to its Integrated GNSS Master (IGM) family.
IGM 3.0 combines an IEEE-1588v2 PTP grandmaster with a GNSS receiver and antenna to simplify indoor or outdoor installations. Each of the three IGM 3.0 additions deliver precise time and phase as well as new capabilities enabled by IGM Plus hardware models with enhanced oscillators and GNSS receivers.
The new oscillator options extend time-keeping holdover performance while the enhanced receiver speeds satellite signal acquisition and improves security by accessing more GNSS constellations simultaneously.
The receiver upgrade option supports GPS, Galileo, QZSS and GLONASS, and is Beidou-ready. The IGM 3.0 software includes higher PTP capacity to 60 clients along with IPv6 support for traffic and management flows.
TimeProvider’s Gateway Clock. Extending the TimeProvider 4100’s Gateway Clock operation mode with Microchip’s high-performance boundary clock (HP-BC) operation mode enables it to support the latest high-accuracy ITU-T Class C & D boundary clock standards. These standards dictate extremely accurate time transfer over optical networks so operators can use dense wavelength division multiplexing (DWDM) technology rather than dedicated fiber.
Release 2.0 accommodates escalating bandwidth requirements of next-generation network devices through an optional expansion module that provides 10 GE interfaces. Expanded monitoring functions enable service providers to understand how time and phase performance is affected by network elements, the company added.
PTP client capacity has been increased to 790 to provide the scalability that is critical for deployments in mobile network aggregation layers and new DOCSIS 3.1 Remote-PHY cable architectures.
Both TimeProvider 4100 Release 2.0 and IGM Release 3.0 are managed with TimePictra, the centralized and unified management platform for the company’s family of precise timing systems.
