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Small Cell Wireless Backhaul Vendor Landscape for Metrocells

Wireless Metrocell Backhaul VendorsSmall Cell Wireless Backhaul for Metrocells has attracted a lot of attention in recent months, with vendors launching new products, introducing new technologies and agreeing new sales channels.

We've assembled a fairly comprehensive list of potential suppliers across all wireless technologies, and discuss each briefly in turn. The properties and trade-offs for each type of technology lead to a toolkit approach, using different techniques depending on the deployment scenario as summarised in this article. 

Non-Line-of-Sight (<6GHz)

NLoS frees metrocell installations to be almost anywhere, working through or around obstructions including large buildings and street furniture. Some in this category might better be termed nLOS (near Line of Sight), where signals can go around but not through obstacles in their path., Although inherently point to multipoint (P-MP), directional antenna may be used at both end-points to improve performance and increase capacity by sectorising the central site. Spectrum may be limited and/or costly, which constrains the maximum data capacity of such solutions.

  • Airspan have integrated wireless backhaul into their Metrocell, evolved from their earlier WiMAX TDD radios. It makes for a compact solution. They also market the backhaul unit standalone, named as their iBridge product.

  • BLiNQ Networks specialise in this field, claiming performance of 82 Mbps in only 10MHz bandwidth with their latest X-100 product.

  • Cambium Networks, formerly part of Motorola, has a wide product range with over 3.5 million access points installed to date. The Canopy range of Point-to-Multipoint are probably the most relevant, with data rates up to 90Mbps per sector, 540Mbps per tower.

  • Ceragon, who also offer a wide range of backhaul equipment, specifically target their NLoS (and E-Band) products for small cell backhaul.

  • DragonWave launched the Avenue Link Light product in February 2013. Compact and light (<2Kg), it is scalable up to 40MHz TDD bandwidth.

  • Fastback Networks are a startup who have just announced their ServiceEdge solution, which achieves 500Mbps and uses Qualcomm's latest chip. They raised a further $15 million round of funding in May 2013.

  • Max4G, a Minessota startup from 2008 focussed entirely on 4G metrocell backhaul. Their product claims 520Mbps with sub 1 millisecond latency.
  • NEC include NLoS in their overall small cell backhaul portfolio, but the press release is a bit vague about whether this is in-house or resold and exactly which products/capabilities are available.

  • RADWIN has years of experience in this field and offers equipment that operates in a wide range of different frequency bands, with selected products specifically for small cells.

  • Taqua, a US based firm also known for their low cost core network kit, offers their W-Series kit which supports up to four sectors to increase capacity.

  • Tarana, another new entrant, launched their Absolute Air solution on February 2013, claiming very high throughput and frequency reuse.

Microwave 6-42GHz

Microwave links have been the mainstay of macrocell wireless backhaul worldwide, leading to a large variety of different microwave equipment suppliers and significant volume and cost advantages. Some, such as Cergaon, actively recommend alternative technologies for small cell backhaul such as NLoS or 60/70/80GHz. Therefore, this section lists those companies who explicitly promote products in this frequency range with a suitable form factor and performance for the "last mile" of Metrocell backhaul.

  • Aviat. Global provider of mobile backhaul microwave products, although little marketing specifically for small cells to date. See also their 70/80GHz E-band products.

  • BluWan. This French startup from 2010 is actively trialling its 42GHz product with several operators, having specifically designed it with Metrocell backhaul as a target application from the outset. Sector capacity goes up to 2.4 Gbps, with peak capacity to end points available in 120 Mbps and 240 Mbps using low latency TDD. It promises very high area capacity using more widely available spectrum.

  • Cambridge Broadband Networks: Their VectaStar compact, high performance point-to-multipoint systems have been widely used in Metrocell trials to date. Sector capacity of 300Mbps and low latency, their systems use FDD rather than TDD mode.

  • CCS: A new startup based in Cambridge UK, with product announced, capital raised and shortly starting commercial pilot trials. Uses innovative self-organising mesh technology to connect multipoint-to-multipoint nodes, minimising the installation and ongoing maintenance cost.

  • DragonWave announced their new AvenueLink product family in February 2013, specifically designed for urban street canyon scenarios. Up to 400Mbps per hop and 1Gbps per aggregation node. NSN also resell this solution.

  • Ericsson: The Swedish telecom multi-national, has many years of microwave product heritage. There is little specific small cell/Metrocell marketing material available to determine the suitability of this part of their portfolio.

  • Huawei: The Chinese telecom giant includes their own RTN 310 product in this space, which is described with Gigabit throughput with zero footprint.

  • Intracom: This Greek system integrator has also developed their own in-house microwave backhaul portfolio, with both P-P and P-MP options.

  • NEC: Offer their iPASOLINK AX all-outdoor radio and iPASOLINK split-mount series for remote small cell connectivity and urban aggregation.

  • ZTE. Believed to have their own in-house product, but little information available on their website.

60GHz V-Band

This high frequency spectrum has the combined advantages of low (or zero) spectrum cost and high capacity. The relatively short range of up to 1km and the use of narrow point-to-point beams limits interference and enables high frequency reuse. Point-to-point links can achieve data rates in excess of 1Gbps. Read more about 60GHz technology in a separate article.

  • AthenaWave. Based in Surprise, California, the company was founded in 2009 and launched the A060-Mini in 2011, claimed to be the world's first all digital full duplex 60GHz link. Offers up to 1Gbps data rates at up to 1km and it powered via Ethernet.

  • BridgeWave. This Santa Clara USA company has a wide portfolio of wireless link products, including microwave in 18-24GHz and E-band 70/80GHz. Its Flex4G products were launched in February 2013 with models offering speeds from 100Mbit to 1Gbit/s.

  • DragonWave: Product literature for their AvenueLink product launched in February 2013 indicates this is also available at 60GHz.

  • LightPointe: Privately held San Diego, US company. Their G60DP product is a 60GHz dual-path radio, also fitted with Wi-Fi at 5.4/5.8GHz as backup. Data rates of up to 1.25Gbps and range up to 1.1km. Appears to have a comparatively large form factor.

  • NEC: In February 2013, NEC launched the iPASOLINK SX for urban street-level connectivity. This 60GHz (V-band) compact high-capacity all-outdoor radio is currently being evaluated by 5 major network operators in Europe, scheduled for commercial availability in the second quarter of 2013. No product details are yet published on their website.

  • Siklu: This Israeli company launched their 60GHz product, Etherhaul 600, in February 2012. It offers up to 1Gbit/s throughput and claims to be the smallest physical size in the industry, but the company does not publicly reveal these measurements on their website. Vodafone UK is reported to be trialling the system.

  • Sub10: This UK based company offers both 60GHz and 70/80GHz millimetre wave point to point solutions. The Liberator series comes in three models, ranging in speeds from 100Mbit/s to 1Gbit/s. The units include a built-in alignment tool for installation. The wireless links are also SyncE and 1588v2 capable for timing/sync support. Resold by Alcatel-Lucent as part of their overall metrocell backhaul portfolio.

  • Vubiq: This Californian company offers their HaulPass product with both 60GHz and 5GHz radios, incorporating a motorised auto-alignment mechanism which removes the need to manually align during installation. It is also claimed this helps alleviate vibration and sway issues. Data throughput rates of up to 1.25Gbps line rate full duplex.

70/80GHz E-Band

Many of the same companies offer products in both 60GHz and 70/80GHz frequencies. The higher 70/80GHz equipment often has a higher range, enjoys even higher data capacities than 60GHz but may require a larger form factor with dish antenna sizes of 30cm or more.

  • Aviat: With 50 years in all aspects of the microwave business, this large US vendor offers E-Band links for high capacity LTE cellsites.

  • BridgeWave: This US vendor was one of the pioneers of E-Band, winning substantial business from Clearwire to connect many of their WiMAX sites.

  • Ceragon: From their comprehensive mobile backhaul portfolio, Ceragon prioritise their NLoS and E-Band products for small cell backhaul.

  • E-Band Communications: Launched E-Band Mini in February 2013, a lower cost version of their previous 70/80GHz product.

  • Ericsson: The Mini-Link PT6010 provides 1Gbps data throughput over short hops.

  • Huawei: Their RTN 380 product launched late 2012 delivers over 2.5Gbps with only 500MHz channel spacing.

  • LightPointe: Their latest 2013 range of AireBeam products includes 70/80GHz links for backhaul, featuring low power consumption and low latency.

  • NEC: Announced the iPASOLINK EX for urban small cell traffic aggregation and distributed RAN 'fronthaul' delivering capacities in excess of 10Gbps, commercially released February 2013 and preselected for deployment by two major pan-European network operators.

  • Siklu: Their EtherHaul 1200T and 1200F products, operating in TDD and FDD modes respectively, are some of the most widely deployed E-Band products today. Uses their in-house RF silicon-germanium chipset., achieving 1 Gbps data rates.

  • Sub10: The UK firm recently expanded their Liberator product portfolio. Formerly only 60GHz, their range now includes 70/80GHz product

Free Space Optical and other alternatives

I've seen several companies offering free space optical links with data rates up to 1Gbps or more. Spectrum is free. I've only seen one vendor actively marketing their solution for small cell backhaul, although LightPointe also has product that might be suitable.

Another possible option comes from EBlink. This French company have designed point-to-point links operating in the unlicenced 2.4GHz and 5GHz Wi-Fi spectrum that can achieve multi-Gigabit data rates. These are primarily designed to support remote radio units, rather than just small cells, using the CPRI or OBSAI standard interfaces and is marketed as a "fronthaul" solution.

And last but not least, Wi-Fi has a place for small cell backhaul, although some might limit its use for tactical or fallback scenarios because it operates in unlicenced and uncontrolled spectrum. Ruckus Wireless is a leader in public Wi-Fi solutions and their products have already been used for backhaul, for example between street light-poles.

Conclusion

While we have tried to include all those vendors actively promoting a small cell wireless baclhaul solution, we offer no recommendation or analysis as to the relative fitness for purpose, commercial availability or cost of these solutions. Nor should readers expect this list to be complete.

What is clear however, is that the market for small cell wireless backhaul – predicted to exceed $1.5 Billion annually by 2016 – is attracting a wide range of competitive vendors.

If you feel that any company has been omitted or mis-represented above, please comment below or Contact Us so that any discrepancies can be rectified.

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Comments   

#1 Doron Shalev said: 
David
1) In the 70/80GHz E-Band section, a typo caused Huawei to be merged into the Ericsson bullet.
2) Other than that, an excellent compendium.
Doron
0 Quote 2013-03-26 22:16
 
#2 Michael Hand said: 
You might also want to take a look at Vubiq (www.vubiq.com), a US company coming to market with a line of integrated dual-band (60 & 5 GHz - both unlicensed) wireless solutions for small cell backhaul called HaulPass. This innovative approach allows for both LOS and NLOS connections with automatic failover in order to maximize availability. Furthermore, one product in this line - the HaulPass SC - is also capable of automatically aligning the antennas at each end of the link, which will drastically reduce the amount of installation time required, as well as the skill level of the installer. Data rates are 1 Gbps for the full duplex 60 GHz link, and 600 Mbps for the lower frequency link - and both can be combined for aggregate throughput of 1.6 Gbps. Carrier-grade switching is also included, with four Ethernet jacks per terminal, and the links are SyncE and 1588v2 capable.
+1 Quote 2013-03-27 21:01
 
#3 ThinkSmallCell said: 
@Doron: Thanks for pointing out the typo - fixed now. I've had good feedback about the article so far.

@Michael: Not heard of Vubiq before. Interesting because while I've heard talk about mechanically self-aligning 60GHz technology, I hadn't seen it commercially available yet. I've added them to the article list. Thanks for drawing attention to that.

There have also been one or two other corrections, advised directly by email, although I don't plan to include vendors with wireless backhaul unsuitable for small cell purposes.

Please don't hesitate to contact us or comment below to point out further errors/omission s.
0 Quote 2013-03-28 14:51
 
#4 Ron said: 
Nice article! I'm looking for some sort of comparison of maximum span lengths between the different vendors (at some stated service availability), and also the tradeoff with various size antennas. Any comments on either?
0 Quote 2013-06-03 03:42
 
#5 Tony said: 
Great summary of the market, David. You could also add Max4g to your NLOS section. They are claiming NLOS up to 500 Mbps and 500 microsecond average latency TDD.
0 Quote 2013-06-06 16:38
 
#6 Thinksmallcell said: 
@Ron: Link range is expected to be relatively short for metrocells - typically a few hundred metres - so range doesn't seem to be a limiting factor. It would be important to specify a scenario so that you are comparing "apples with apples". But bear in mind that typical deployments come in all shapes and sizes. I've been surprised at how small the antenna are for quite a wide variety of wireless backhaul products - many products seem to fit the "burglar alarm box" size/shape even including antenna. Those with mechanical auto-alignment are a bit bigger, but still should meet planning/zoning limitations.

@Tony: Thanks for that - I've overlooked Max4g. Seem to be a relatively new kid on the block (founded 2008) with impressive specifications but little information on their website. The low latency is particularly attractive.
0 Quote 2013-06-11 12:54
 
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