Posts Tagged ‘small cell’

Small Cells, Carrier Wi-Fi Could be a “Game Changer”

Wednesday, May 15th, 2013
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The use of Wi-Fi functionality in small-cell base stations will be a game changer for mobile service providers, easing heavily congested data pipes while linking together billions of devices into a single network architecture, according to the IHS iSuppli.

Small cells–low-power base stations each supporting approximately 100 to 200 simultaneous users–will augment wireless coverage and capacity in dense urban areas.

The small cells likely will be installed in public facilities such as malls, railway and subway stations, the sides of public buildings, and on street or traffic lights. IHS expects large-scale deployment of small cells to start in 2014. The integration of Wi-Fi, in addition to 3G and 4G mobile capabilities, will complement residential Wi-Fi.

By 2015, some 725 million households globally will have Wi-Fi access. That will create usage habits that make Wi-Fi access a normal and accepted way of getting access to the Internet.

Shipments in 2013 of Wi-Fi chipsets will reach a projected 2.14 billion units, up a robust 20 percent from 1.78 billion in 2012. This year’s anticipated increase continues the impressive run of double-digit growth that started at least five years ago and will persist for three more years until 2016, after which expansion dips to a still-strong 9 percent. By 2017, Wi-Fi chipset shipments will amount to 3.71 billion units, as shown in the attached figure.

Overall, approximately 18.7 billion Wi-Fi chipset units will be shipped from 2011 to 2017—nearly all of which will belong to the high-performance 802.11n version. To put that number in context, the entire planet has seven billion people—which means that Wi-Fi chipset shipments will outnumber the earth’s population by more than two-and-a-half times.

The devices containing embedded Wi-Fi chipsets are many, but mobile handsets stand out in particular.

By 2015, nearly 1.2 billion handsets out of a total of 1.9 billion cellphones produced that year will include Wi-Fi functionality. Approximately 70 percent of handsets sold worldwide by then—and well over that figure in North America and Western Europe—will be smartphones with embedded Wi-Fi.

Some might also argue that increasingly ubiquitous Wi-Fi might create new opportunities in the device and application space. There might be whole categories of Internet devices designed to work only in the presence of a Wi-Fi signal.

Already, in most developed nations, 80 percent to 95 percent of the time, smart phone users are in zones where Wi-Fi can be the primary Internet connection, when they use the Internet.


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Small Cell Networks Create New Testing Requirements

Tuesday, April 9th, 2013
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Small cell networks introduce many new additional endpoints into a macrocell mobile network, often changing backhaul networks, especially when the small cells are added in a “hub and spoke” architecture from existing macrocell sites.

That obviously creates new performance monitoring requirements, including visibility. Where a new set of small cell spokes is hubbed off an existing macrocell, blind spots are created, since traffic from the new small cell sites is aggregated at the macrocell.

That means performance measures reflect only the aggregated traffic at the hub.

Blind spots therefore affect the ability to segment, monitor, and test services between the aggregation point (at the core) and the hub, and between the hub and the spokes, said Olaf Herr, Product Marketing Director,JDSU.

“While backhaul activation and performance testing can be initiated from the core (or mobile switching center) to the spoke,because traffic is tunneled through the hub device (for instance in a MPLS/VPLS tunnel), often visibility into spoke backhaul performance is lost when traffic is aggregated trough hub cell site routers,” said Herr.

Long Term Evolution, the global fourth generation network protocol, introduces additional challenges, namely increased signaling traffic some of which is never backhauled to the network core, and hence not visible to centralized monitoring probes.

JDSU argues that makes a switch away from external probes necessary, and proposes use of “microprobes” that plug into existing gear such as routers.


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FCC Sees 10X More Mobile Backhaul Demand

Monday, March 25th, 2013
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Mobile backhaul needs will keep increasing as wireless carriers continue to deploy LTE technology in their networks, virtually all observers agree, driven by growing use of small-cell technologies (microcells, picocells, and femtocells) will increase demand for mobile backhaul.

The other obvious driver is growing bandwidth at every tower site.

Average macrocell backhaul requirements were 10 Mbps in 2008. In less than three years, they have more than tripled to 35 Mbps in 2011, and by 2015 they will reach 100 Mbps.

The overall size for the backhaul market is expected to increase significantly, as a result. One study estimates that the size of the backhaul market will grow from $3 billion annually to $8 to $10 billion in the next three to five years, driven in large part by increases in wireless data traffic, the Federal Communications Commission reports.

Infonetics Research projects that telecom service providers will collectively spend at least $8.2 billion annually to deploy backhaul infrastructure for mobile wireless networks by 2014.

The expected mass deployment of small cells will likely drive demand for new radio-based backhaul technologies.

For example, one study estimated that 44 percent of backhaul traffic in 2012 would be carried on copper facilities, 13 percent on fiber and 40 percent via microwave.

In comparison, in 2005, 85.5 percent of backhaul traffic was carried over copper, 5.8 percent on fiber, and 8.7 percent using fixed wireless.

Another study projects that in North America, microwave radio’s share of backhaul connections will increase from about 15 percent in 2011 to at least 25 percent in 2015.


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