Showing posts with label Carrier Aggregation. Show all posts
Showing posts with label Carrier Aggregation. Show all posts

Wednesday, February 5, 2014

NSN Extends LTE-Advanced Carrier Aggregation to 3 Carriers

Nokia Solutions and Networks is enhancing its Carrier Aggregation software to be able to support 3 carriers. This should allow for individual users’ downlink data rates of up to 450 Mbps for operators having a total bandwidth of up to 60 MHz in up to 3 bands.

NSN is also implementing dynamic, load-balancing enhanced Inter Cell Interference Coordination (eICIC) to enable highly efficient, capacity-focused LTE small cell deployments. eICIC solution manages interference while balancing the subscriber load across the small cell and macro layers. NSN said its solution works with upcoming LTE-Advanced devices as well as with the LTE devices available today.

Both enhancements are software upgrades to NSN’s Flexi Multiradio 10 and Flexi Zone Micro/Pico base stations. NSN will present these innovations at Mobile World Congress 2014.

“As the development of LTE and TD-LTE smartphones progresses towards higher aggregated bandwidth, operators continue to evolve their LTE network capacity adding further frequency allocations. With our software-based evolution of LTE-Advanced Carrier Aggregation, we combine the advantages of both these trends,” said Tero Peltola, vice president of FDD LTE at NSN.

“The small cell deployment focus is definitely moving beyond simply filling coverage gaps to improving subscriber experience with added capacity. Even though it is possible to deploy LTE small cells without interference management, NSN’s dynamic, load-balancing eICIC solution boosts capacity by up to 30 percent with coordinated macro and small cell interference management techniques,” continued Peltola. “For effective capacity growth with HetNets, resource management must be optimized for all users, regardless of their LTE device’s capabilities or whether they are connected on the small cell or macro layer. With our solution, operators can ensure every user enjoys a performance boost following the small cell deployments.”

http://www.nsn.com

Wednesday, January 15, 2014

Ericsson Demos LTE-A Carrier Aggregation with Angola's Unitel

Angola’s leading telecommunications provider Unitel, has successfully tested LTE Advanced (LTE-A) Carrier Aggregation of the 1800MHz and 900MHz spectrum bands on its commercial network.  The demonstration took place on December 18 in Luanda, Angola, in partnership with Ericsson.

Amilcar Safeca, Deputy CEO of Unitel, says: “Unitel is always innovating to enhance the customer experience. With the global leap toward higher data access speeds for sophisticated video and mobility services, we are enhancing our network to ensure we continually provide high-quality services to our high-demanding subscriber base. With this demo, we are well on the way to launching the most advanced mobile network in Angola and perhaps Africa in the near future. We are working with Ericsson to make this happen.”

http://www.ericsson.com/news/140114-unitel-and-ericsson-demo-africas-first-lte-advanced-technology_244099438_c

Wednesday, January 8, 2014

Sprint Spark Gets Rolling with Up to 60 Mbps in Multiband Devices

Sprint's new "Spark" network architecture, which leverages carrier aggregation, is now available in 11 markets across the U.S. with peak downlink speeds of 60 Mbps.

Sprint Spark uses carrier aggregation to combine FDD-LTE at 800 MHz and 1.9 GHz with TDD-LTE at 2.5GHz. Sprint Spark is now available in the following 11 markets: Austin, Texas; Chicago; Dallas; Fort Lauderdale, Fla.; Fort Worth, Texas; Houston; Los Angeles; Miami; New York; San Antonio, Texas;
Tampa, Fla..

The first devices to support Sprint Spark include:

  • LG G Flex  -- the new curved, flexible smartphone.  It will take advantage of the Sprint Spark network. It also comes with a 3,500mAh battery and offers up to 29 hours of talk time.
  • NETGEAR LTE Gateway 6100D  -- a fixed wireless router for businesses that is positioned as a back up Internet service to avoid outages.  It could also be used to replace primary Internet service in the office because it can connect up to 80 Wi-Fi users while using the high-speed capabilities of Sprint Spark. It features Power over Ethernet, WAN to WWAN failover, TR-069 remote management, advanced Wi-Fi encryption and VPN capability.
  • NETGEAR Mingle Mobile Hotspot  -- the first tri-band device available for prepaid customers in the United States. It will be available this quarter on Virgin Mobile’s competitive Broadband2Go no-contract plans, which include daily service on Sprint’s 3G/4G LTE networks (where available) for $5/day. Broadband2Go also offers monthly data plans for $25 with 1.5GB or $55 with 6GB.

Sprint plans to deploy Sprint Spark in about 100 of America’s largest cities during the next three years. The service is expected to cover 100 million POPs by the end of the year.

http://faster.sprint.com/?ECID=vanity:faster

In October 2013, Sprint demonstrated 1 Gigabit per second (Gbps) over-the-air speeds at its lab near Silicon Valley, California.

Sprint claims that it is technically feasible to deliver more than 2 Gbps per sector of over-the-air speed given its extensive spectrum licenses, especially in the 2.5 GHz band.
high-speed capability demonstrates 50-60 Megabits per second (Mbps) peak speeds today with increasing speed potential over time. Given Sprint's spectrum and technology assets, it is technically feasible to deliver more than 2Gbps per sector of over-the-air speed.

"Sprint Spark is a combination of advanced capabilities, like 1x, 2x and 3x carrier aggregation for speed, 8T8R for coverage, MIMO for capacity, TDD for spectral efficiency, together with the most advanced devices offering both tri-band capability and high-definition voice for the best possible customer experience," said Dan Hesse, CEO of Sprint.

Some other key points of the October 2013 announcement:

  • Sprint current has approximately 55,000 macro cell sites and plans to stay at this level for the next few years. 
  • A rollout of small cells beginning next year will augment capacity, coverage and speed.
  • Alcatel-Lucent, Nokia Solutions and Networks and Samsung have been selected to provide 2.5GHz radio heads and to enable Sprint Spark. Each company will service approximately one-third of Sprint's deployment markets.
  • The 2.5GHz radios are expected to have capabilities for 8 Transmitters 8 Receivers (8T8R), which will be a first deployment of its kind in North America. These radios will be capable of improved coverage, capacity and speeds when compared to the more traditional 2T2R or 4T4R radios used by our competitors.
  • Sprint Spark is designed to accommodate all of Sprint's spectrum bands on a single tri-band smartphone. The first tri-band devices will be available to customers in the next few weeks and offered by HTC, LG and Samsung.
  • Sprint's HD Voice capability, which is also supported on 3G, reaches approximately 85 million people across the Sprint network today, and the company expects 250 million to have access to HD Voice capability by mid-2014. Sprint expects 12 million HD Voice devices in the customer base by the end of 2013, growing to 20 million by the end of 2014.

Friday, January 3, 2014

Optus Launches LTE TDD Advanced Carrier Aggregation with Huawei

Optus launched Carrier Aggregation (CA) technology on its live commercial LTE TDD (Long Term Evolution Time-Division) network  in Australia.

The deployment, which was carried out in partnership with Huawei, combines two 20MHz carriers on Optus' 2300 MHz 4G Plus spectrum. Initial tests have already shown speeds of above 160 Mbps on a single device.  The live deployment has been rolled out across a number Optus' "4G Plus" sites in Melbourne, and follows an earlier trial of CA and other advanced technologies which saw speeds hit over 500 Mbps on LTE TDD.

"Carrier Aggregation is an LTE-Advanced technology which combines multiple spectrum bands – it's the technological equivalent adding extra lanes to a highway, allowing for higher-speed data traffic," said Huawei Australia CTO Peter Rossi. "This project adds to Huawei's long list of world-first technology breakthroughs. By combining two or more channels or ‘carriers' on existing live commercial LTE spectrum bands, Optus can dramatically increase throughput on its mobile data network."

Additional CA tests have been conducted by Huawei and Optus in St Marys, west of Sydney, combining four 20MHz carriers for a total of 80MHz on the 2300MHz band to deliver mobile broadband speeds of over 520 Mbps.

The same trial also demonstrated a number of additional LTE technologies including:


  • 4×4 MIMO (multi-input-multi-output), which delivered 125 Mbps speeds on a single 20MHz carrier
  • Beamforming, where the network intelligently forms radio signals to deliver the best experience to users as they move around a cell coverage area. Beamforming tests showed a 67% improvement in data speeds at the edge of a cell, from 18 Mbps to 30 Mbps.
  • Circuit-Switched (CS) Fallback, which allows Packet-Switched LTE 4G connections to revert to CS GSM/UMTS 3G networks for voice calls

Huawei expects to launch mobile broadband devices compatible with CA (known as Cat-6 TD-LTE) in 2014.

http://www.huawei.com