05 December 2017

Smart Wireless Broadband Technology for Smart Cities - SiBEAM Blog

The next generation of wireless communications equipment will have to integrate into traffic lights, street lights and bus shelters. It must become smaller, lighter, low-power. It must also become more modular to accommodate a wide range of services, from 5G to metro Wi-Fi to NB-IOT. GigaRay 60 GHz module sets from Lattice Semiconductor accelerate this trend and make adding gigabit-class wireless backhaul and access quick and easy.

The era of heavy-iron outdoor telecom equipment is over. The wave of installations of tall towers, large cellular base stations and microwave dishes of the last round of telecom investment is largely complete. Due to the hyper-local nature of the next generation of data services, the future of communications in the urban environment is a dense mesh of small nodes, mostly interconnected wirelessly, coupled with fiber backhaul to the core network.

This will bring about significant changes to street furniture such as traffic lights, street lights and bus shelters as they adapt to the new order. It will also bring change to the way that communications equipment is designed in order to make it more compatible with the street furniture that it integrates with.

Examples of the blending of traditional city services such as lighting and traffic management with communications are starting to emerge: 

  • Los Angeles is deploying Signify (formerly Philips Lighting) SmartPole street lighting with fully built in 4G LTE wireless technology from Ericsson.
  • American Tower, one of the largest providers of mobile network infrastructure services, announced that they have formed an alliance with Signify to co-develop an aesthetically designed smart pole that delivers wireless network coverage for multiple carriers and energy-efficient LED lighting. 
  • Shanghai has installed multifunction street lampposts fitted with touch screens and surveillance cameras that, among other things, will provide free Wi-Fi, area traffic conditions and charging stations for electric vehicles.


As street furniture adds more capabilities which create and consume more data, high bandwidth connections must be provided back to the core network. This is achieved most effectively through the use of 60 GHz links. The benefits of the 60 GHz band in urban broadband communications are well understood: high capacity, low interference, excellent spectrum efficiency through reuse, and no licensing required. However, to use the 60 GHz band in this application, we need modular solutions that can be easily integrated and which require little or no ongoing maintenance.

To address this need, Lattice Semiconductor has introduced [link to press release] the MOD65412 60 GHz module set, a member of the GigaRay family of semiconductor devices and modules for 60 GHz infrastructure applications [Press image of MOD65412 module set]. The module set consists of a baseband module and a beam-steering RF transceiver module and is designed for easy integration into a variety of equipment, including street furniture. The MOD65412 module set can substantially improve the aesthetics of smart street equipment. Beam-steering allows electronic alignment of the links after the equipment is installed, which reduces initial installation costs, makes subsequent changes to the network simple to achieve and essentially eliminates routine link maintenance.

Wireless broadband infrastructure has an essential role to play in smart city data networks. With Lattice’s GigaRay family of devices and modules, it is easier to deploy than ever before.

© Lattice Semiconductor

26 September 2017

Change is in the Air – 60 GHz Infrastructure is Boosted by Regulatory Reform - SiBEAM Blog

The 60 GHz band is ideal for infrastructure applications in urban environments and is a very cost-effective alternative to fiber deployment. So why are we not seeing 60 GHz nodes on every street corner? There are important changes coming in the regulations governing the use of the 60 GHz band which make this more likely in the near future.
With the advantages of phased array antennas and electronic beam-steering technology for large urban deployments now well understood and implementations from Lattice and others becoming available, we are starting to see large scale trials - a good example of which is the Facebook Terragraph trial in San Jose, California where a 10 square kilometer region of the city will be provisioned with high-speed Wi-Fi supported by a 60 GHz mesh network.
The benefits of this technology are universal and are even more valuable in regions with a larger broadband connectivity deficit. However, while the 60 GHz band is license-free in most regions, it does not mean that it is completely without regulation – and those regulations are typically written to take into account the capabilities of the equipment that is available at the time. As an example, the recommendations Rec. 05(02) and Rec. 09(01) of the European Conference of Postal and Telecommunications Administrations (CEPT), which are applicable to its 49 member countries, have minimum antenna gain requirements for outdoor Fixed Service that are fine for conventional equipment but effectively prohibit next-generation equipment that uses beam-steering technology. By contrast, the Federal Communications Commission in the United States has already adopted rules that are friendly to beam-steering technology.
The increased awareness from the operators and equipment manufacturers regarding the benefits of phased array antenna and electronic beam-steering technology is now translating into a debate between regulatory committees. As part of this activity, Lattice recently participated in a technical analysis led by Huawei that forms the basis of a multi-company contribution to the Fixed Service working group in CEPT (ECC SE 19) recommending regulatory change. Lattice provided the system parameters for its current wireless infrastructure solution so that Huawei could model the propagation characteristics and probabilities of interference in a simulation of an urban deployment. You can learn more about wireless infrastructure products built with Lattice’s SiBEAM technology here.
 
 
Figure 1: Simulation scenario from technical analysis contribution to CEPT

Figure 2: GigaRay wireless infrastructure solution
The study found that “Point-to-MultiPoint (PtMP) and MultiPoint-to-MultiPoint (MPtMP) products with maximum EIRP 40 dBm, in meshed networks, where each network element with beam-steering antennascould be reached by more than one direction by other equipment with link auto discovery seem better fitting the dense urban scenario providing very good performance and low probability of interference”. This is a very strong endorsement! The technical contribution now forms the basis of the investigation by SE 19 which will, in all likelihood, permit the use of beam-steering technologies in outdoor applications.
The review in Europe is echoed in other parts of the world as regulators determine the most effective use of their spectrum assets. On March 13, 2017, Argentina’s ENACOM approved the use of the 57-64 GHz band for Fixed and Mobile Services and authorized use of “wireless broadband local access systems in shared mode”. On May 9, 2017, Mexico’s Federal Institute of Telecommunications (IFT) classified the 57-64 GHz frequency band as license-free spectrum for indoor and outdoor use. In India, TRAI has recommended to the Department of Telecommunications the delicensing of the 60 GHz band for both mobile and infrastructure applications in support of the ‘Digital India’ and ‘Make In India’ initiatives and action by the Government of India as anticipated.
The promise of phased array antenna and electronic beam-steering technology is to revolutionize the delivery of fixed wireless access and mobile network and metro Wi-Fi services without the need for costly and time consuming fiber installation. Lattice’s wireless infrastructure products provide operators and service providers with the actual means to deploy such networks. We will continue to work with equipment manufacturers and operators to promote regulatory change where it is needed to fully realize the potential of these technologies and to reduce the global broadband deficit, delivering gigabit wireless everywhere. It’s time consuming work – but we can sense that change is in the air!

© Lattice Semiconductor

11 April 2017

A “Snappy” Solution for Video Docking - SiBEAM Blog


Lattice’s SiBEAM Technology Group has developed SiBEAM Snap, a revolutionary wireless connection technology that delivers USB 3.0 (5 Gb/s) data over a short wireless link. It replaces the USB connector and cable. But it can’t deliver video, can it? Oh yes, it can! Let’s explore how video is traditionally delivered today and how audio, video and data can all be delivered over a Snap wireless connection.
The Universal Serial Bus, commonly referred to as USB, is truly universal in consumer electronics devices. Almost all of our devices, from mobile phones to laptops, tablets and cameras, come with a USB port or compatibility. We have replaced unique connectors and protocols associated with each type of peripheral device (as examples, think of PS/2 for keyboards, Centronics for printers, SCSI for hard disk drives, and IEEE 1394 for video cameras) with the USB connector and protocol. 
A common use for the USB is to transfer data from one device to another, particularly using USB as a link to an external video display. However, there is a growing trend to replace the USB for such applications. As the world becomes more connected, consumers will want solutions that fit their on-the-go lifestyle. In this article, we’ll explore how video is traditionally delivered today and how audio, video and data can all be delivered over a new wireless connection with the same speeds as USB 3.0 (5 Gb/s). 

Video over USB 

Traditionally, video has been transported in raw form between devices, which requires a very high bit rate and a dedicated high speed DisplayPort interface. However, compression can be applied effectively to video without noticeable impact to picture quality. This is shown by its use in broadcast television and video streaming. Using similar techniques suitably adapted for desktop display, compression can be used to achieve bit rates that will easily fit within the bandwidth offered by a USB link. Now USB carries audio, video and data. And the most widely used desktop compression technology comes from DisplayLink. 
DisplayLink is a chip and software company whose technology is used in products from the world’s leading PC and peripheral brands. DisplayLink’s driver is used to compress the video display on the host side and the resultant compressed video stream is transported over USB to DisplayLink’s IC. DisplayLink’s graphics chip technology enables multiple monitors, docking stations, video adapters, and more, with resolutions of 4K and beyond across a single link to a host computer. Products with DisplayLink technology support the latest notebooks, tablets, phones using Windows, macOS, Chrome OS, Android, and Ubuntu. 

Notebook PCs 

The enterprise notebook PC is a great example of the traditional approach to interface expansion. A variety of dedicated interfaces are replicated over a large, complex, fragile and expensive connector to a dock platform. The size and complexity of the connector limit the form factor choices while the fragility makes the notebook more vulnerable to damage either through water ingress or connector failure. By contrast, a wireless connection doesn’t suffer from mechanical wear and tear. They can be used in parallel to increase the total bandwidth and they can transport dual 4K video using DisplayLink technology. The docking platform can provide the customary ports that the end user is expecting. 

2-in-1s 

The 2-in-1 tablet and detachable PC also benefit from this approach. Typically, there is a transportable component that contains the keyboard and the external interfaces to desktop peripherals and displays and a mobile component which contains the screen and processor. The transportable part physically secures the mobile part when it is docked. Combining wireless and DisplayLink technologies, all of the data for the external interfaces, including video, can be carried over the wireless connector, liberating the design of the mobile device. 

Mobile Devices 

Finally, we can make new capabilities available for “mobile first” and “mobile only” consumers. These consumer computing needs are primarily met by their mobile phones and tablets. While they don’t want or need a personal computer, they do need the ability to undertake productivity tasks that are straightforward on a personal computer and cumbersome on a mobile device without a display, keyboard and mouse. Their needs can be met on a mobile device through a companion dock that provides display extension and connection to an accessory keyboard and mouse. The same docking device can provide ports for the connection of additional desktop devices such as external storage, printers, scanners or any other peripheral device that can be supported over USB. 
In these applications, wireless connector technology transforms the implementation of the product, simultaneously making it more elegant and robust. To enable this experience, we developed the SiBEAM Snap wireless connector. We’ve been testing the interoperability of DisplayLink technology with Snap for some time now and they work as you might expect – seamlessly. 

By extending the concept to video display, DisplayLink and Snap technologies together provide a complete wireless video and data solution that can be used in new approaches to some important applications. A nice proof-of-concept was showcased in DisplayLink’s booth at CES 2017, which showed how effective docking and undocking can be without connectors.

© Lattice Semiconductor