TIM Brasil’s partnership with Microchip Technology provides the accuracy needed for high-performance network architectures, enabling more efficient data transmission
Now that it has implemented 5G coverage in all Brazilian state capitals, network operator TIM Brasil has enabled precision time protocol (PTP) in its commercial 5G service.
To accomplish this, TIM has partnered with Microchip Technology, supplier of the TimeProvider 4100 technology, which allows full compatibility and meets the stringent synchronization requirements of 5G mobile network standards.
PTP allows precise synchronization and times that can reach nanoseconds among cellular base stations, with security of the data transmitted, by encryption.
Signal synchronization is essential for a successful 5G consumer experience, ensuring better performance, including reduced latency, more accuracy and better transmission quality.
“The evolution of the 5G offer by the operator does not occur only in the expansion of coverage, but in the possibility of providing the evolution of the service to the consumer,” said Marco Di Costanzo, network director at TIM Brasil. “We want TIM customers to be able to enjoy 5G networks with the best possible experience.”
He added, “We are satisfied with the easiness of management and robustness of the new TimeProvider 4100, perceived during our extensive field trials, and we are confident this is a perfect match for the demanding requirements in our mobile deployments. It’s a robust synchronization platform, with high scalability, capacity and flexibility for future growth needs.”
Tests of the new technology were carried out after TIM’s implementation of 5G networks in Brazilian state capitals, and prove the evolution of the service already used by TIM in its partnership with Microchip for the last 10 years.
The application of the TimeProvider 4100 technology can have a positive impact on the reduction of latency time and can help improve the signal distribution in indoor networks.
“Our TimeProvider 4100 offers a robust solution with the flexibility to deploy in a wide range of environments accommodating standards required for mobile 5G implementations due to its impressive versatility,” said Randy Brudzinski, corporate vice president for Microchip’s Frequency & Time Systems business unit. “The device uniquely provides a 1588 grandmaster supporting these standards with the high-precision, accuracy and reliability requirements needed for leading mobile operators like TIM Brasil.”
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.
Automotive and transportation companies are supporting the GSMA Embedded SIM Specification to help accelerate the growth of the connected car market, according to the GSMA.
Automakers. The interoperable specification has been backed by international brands including General Motors, Jaguar Land Rover, Renault Nissan, Scania and Volvo Cars, and will enable automakers to remotely provision connectivity over the air to vehicles with an operator of their choice.
It will help to deliver a range of in-vehicle services such as real-time navigation, infotainment, insurance and breakdown services, as well as telematics and remote diagnostics. The use of the specification will also help to quickly connect vehicles with local operators, regardless of where the cars are manufactured.
Mobile Operators. To date, 22 mobile operators worldwide have commercially launched solutions based on the GSMA Embedded SIM Specification. New operators to launch commercial solutions include AIS, América Móvil, KPN, MTN, Rogers Wireless, Swisscom, Taiwan Mobile, Telenor, TIM as well as members of the Bridge Alliance and the Global M2M Association.
The adoption of an interoperable specification will reduce fragmentation and help the industry to take advantage of the Internet of Things, an addressable market estimated to be worth US$1.1 trillion by 2020 according to Machina Research4. Bell Canada, Deutsche Telekom, Etisalat, Indosat, NTT DOCOMO, Orange, Tele2, Telefónica Brasil, Telefónica Group, TeliaSonera and Vodafone have already made commercial solutions available to the market.
“The GSMA Embedded SIM Specification has progressed from the first availability of commercial solutions to industry adoption in a very short space of time. The automotive sector is set for huge growth and it is clear that a common, global standard will help mobile operators to provide scalable, reliable and secure connectivity to vehicles regardless of location,” said Alex Sinclair, Chief Technology Officer, GSMA. “This approach will help car manufacturers offer any type of in-car connected service through a single SIM, which can be provisioned with the profile of a mobile operator once the car is shipped, as well as at the end of a contract, without the SIM needing to be changed.”
The connected car market is set for exponential growth. Gartner Research has forecast that one in five vehicles will have some form of wireless network connection by 2020, equating to more than 250 million connected vehicles in service.
Additionally, Machina Research estimates that the total number of connections in the connected car market will grow at a CAGR of 31 per cent from 182 million in 2015 to 693 million in 2020.
Analyst house Berg Insight also notes that in-vehicle embedded telematics systems shipped 1.9 million units in 2014, a figure that is expected to reach 15 million by 20203.
“Jaguar Land Rover is putting connectivity at the heart of its vehicles to deliver a range of safety, security, convenience and infotainment features for our customers. The GSMA Embedded SIM Specification allows Jaguar Land Rover to reduce manufacturing complexity, adapt to changing regulatory frameworks and work with the best mobile operators, on a country-specific or regional basis, improving the customer offering to deliver the next generation of connected services over the lifetime of our vehicles,” said Mike Bell, Global Connected Car Director, Jaguar Land Rover.
“The GSMA Embedded SIM Specification solves a number of fundamental issues in auto manufacturing principally in-market localisation and lifecycle management that enable us to provide an efficient, robust and global product,” said Fredrik Callenryd, Senior Business Strategy Manager, Scania CV AB.
“The Renault – Nissan Alliance is a global industry innovator for technology for mainstream and mass-market consumers. Supporting the GSMA Embedded SIM Specification will help sustain our innovations by enforcing a reliable and stabilized solution and enable us to offer more flexible and agile solutions. We will be able to offer our customers ease of use and a high quality of service which are Renault – Nissan’s main objectives,” commented Alexandre Corjon, Renault-Nissan Alliance Global VP, Electrics Electronics & Systems Engineering.
GSMA Intelligence research highlights that 76 percent of global M2M connections are now serviced by mobile operators that are deploying or are committed to the GSMA solution, underscoring the momentum behind the specification.
GSMA Connected Living Programme at Mobile World Congress 2016
The GSMA’s Connected Living Programme will showcase the GSMA Embedded SIM Specification at Mobile World Congress, Feb. 22-25 in Barcelona. There will be a number of live demonstrations of the specification in the GSMA Innovation City located at Stands 3A11 and 3A31 in Hall 3, Fira Gran Via, including scenarios from Bridge Alliance and the Global M2M Association.
There will also be a number of workshops, seminars and presentations highlighting the impact of the GSMA Embedded SIM Specification on the international market.
The GSM Association (GSMA), formed in 1995, is an association of mobile operators and related companies devoted to supporting the standardizing, deployment and promotion of the GSM mobile telephone system. It represents the interests of mobile operators worldwide, uniting nearly 800 of the world’s operators with 250 companies in the broader mobile ecosystem.
TIM Brasil’s partnership with Microchip Technology provides the accuracy needed for high-performance network architectures, enabling more efficient data transmission
