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Archive for the ‘LTE’ Category

LightSquared, Spectrum & LTE Deployment

September 12, 2010 Leave a comment

Operators have to make choices for technologies based on few rules – Technology, legacy network backward compatibility, technology ecosystem meaning vendors for Infrastructure/handsets and cost-benefit ratio. They also have to make choices involving which air interface technology to pick, but also which frequency band to utilize.  For the frequency band, both licensed and unlicensed alternatives exist providing different strategic paths.  Spectrum alternatives are compared based on ability to purchase, channel fragmentation, interference from other users, requirements to clear incumbent users, radiated power limitations and technology compatibility. These air interfaces are compared based on spectrum compatibilities, spectral efficiencies, link budgets and deployment costs.

In the near future, operators will be presented with, and challenged by, new and exciting opportunities to deploy LTE based mobile broadband services but like with any new network technology, comes the question of spectrum. Radio frequency is a valuable and finite resource and, today, there is simply not enough to satisfy demand. The need for spectrum is being driven by the pervasive convenience of mobile communications and increased penetration combined with improved performance and the falling costs of wireless devices & services. Read more…

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Categories: Broadband, LTE Tags: ,

Smart RAN for 4G – Compact-BTS, Metro-Femto & ORI

August 31, 2010 Leave a comment

As we race towards 4G there has been a trend in the radio access network (RAN) architecture of simplifying it, making it more compact and flat. The primary motive has been to enable mobile operators to maintain control on their network costs, while they deal with improving coverage and capacity. However, the explosion in data traffic  volumes, due to smart phones like the iPhone, have thrown a spanner in the works for operators to keep tabs on CAPEX/OPEX costs while they try and keep up with incessantly exploding mobile data demand from burgeoning smart devices, applications, and changing user behavior. This calls for a new architectural paradigm that optimizes existing cell site infrastructure, most of which is macro layer enabled, but at the same time introduces new network layers at the micro-, pico- and femtocell level, that can effectively complement the macro layer.

A new type of base station – the compact BTS along with Femto in the outdoor implementation has also entered the market, further reducing footprint and power consumption, while retaining the performance of macro BTSs. Let us explore these concepts and value proposition that we see for 4G deployment –

  • Compact BTS
  • Metro-Femto
  • ORI – Open Radio Equipment Interface
  • Read more…

Categories: Broadband, Femtocell, LTE, WiMAX Tags: ,

MetroPCS – first LTE network in the US

August 29, 2010 Leave a comment

MetroPCS the fifth largest carrier in the US will be the first operator to launch LTE in September, couple of months ahead of Verizon. Samsung’s vice president of systems research and development, Jaebeom Choi, said that MetroPCS would launch their LTE network in the Las Vegas and Dallas markets. At this point, the Samsung Craft will be the initial offering from the carrier – though it may not be an awesome device to launch a next generation network, but will still showcase the kind of speeds LTE will be capable of achieving. This will be a feather in the cap of this regional cellular provider who is a low cost provider for voice and data in the prepaid wireless market.

MetroPCS

MetroPCS is the fifth largest wireless telecommunications network in the United States, and currently serves about 7.6 million customers covering around 20 markets. The company, a Delaware corporation, is headquartered in Richardson, Texas. They operate in 12 of the top 25 largest metropolitan areas, with extended home service in all but Seattle. MetroPCS operates a CDMA 1xRTT (2G) for Mobile Web services in the PCS (1.9 GHz) and AWS spectrum, and has roaming agreements with Verizon and Leap. Read more…

Categories: LTE Tags: ,

SDR implementation with LTE

August 26, 2010 Leave a comment

ZTE, a global provider of telecommunications equipment and network solutions, today announced a contract with Telenor Hungary, a subsidiary of one of the Telenor Group, to build a GSM/UMTS/LTE network in Hungary. ZTE will provide the company with radio and core infrastructure over the next five years, including its industry leading End-to-End and Uni-RAN solutions.

“As part of our vision of a Digital Hungary, we predict a growing need for simple- to-use, value-for-money mobile communications services across Hungary, especially mobile broadband and we now see that the time has come to switch to the next gear and take the lead in providing even faster and even more reliable services to our customers,” said Anders Jensen, CEO of Telenor Hungary.

ZTE will switch, expand and operate the GSM/UMTS/LTE network and deploy over 6,000 base stations, including LTE eNodeBs throughout the country. With its SDR-based solution, ZTE will help Telenor Hungary achieve a unified 2G/3G/LTE core network, supporting multi-mode and multi-band wireless services. This technology eliminates the need for further infrastructure upgrades, providing the operator with the flexibility to roll-out new services and a smooth evolution path to LTE.
Read more…

Categories: 3GPP, Broadband, FCC, LTE Tags: ,

Femtocells – A turning tide!

August 22, 2010 3 comments

Femtocells tide finally seems to be turning – Sprint has announced last week that they will be giving away a new Airvana femtocell product that supports EV-DO, to customers based on the need and eligibility.  The initial version of Sprint’s Airave device, which was made by Samsung, was released in the summer of 2008 and supports only CDMA 1x service. Earlier this spring, AT&T Mobility launched a nationwide femtocell offering, the 3G MicroCell, which it developed with Cisco. Verizon Wireless also has a femtocell that supports CDMA 1x service, called the Network Extender. Only the fourth largest carrier T-Mobile doesn’t to have a Femtocell strategy in place, but they have had UMA (Unlicensed Mobile Access) which did not take off as expected because of lack of Handset vendors commitment.
Read more…

Categories: Broadband, Femtocell, LTE, WiMAX Tags:

Femtocells meet the Enterprise

August 17, 2010 Leave a comment

Femtocells have always intrigued me, why don’t we have more of them? They provide indoor coverage to customers like me, and many advantages to the operator. So why are operators not giving them out for free with a DSL connection like Softbank in Japan? This is the ‘new’ paradigm for indoor coverage, last frontier not conquered by the wireless providers. In the US we have so much fiber underground that most operators can run fiber-to-home (FTH) and put up a Pico cell, albeit the Capex costs. I would think the only thing that is preventing the deluge of femtocells is the pricing, operator initiative and certain other factors like Interference mitigation, etc. Let us explore what they are, how they can be overcome and a balance between performance and efficiency. Read more…

Net neutrality and 4G Networks

August 11, 2010 2 comments

The media is on fire talking about how Google has surrendered the net-neutrality pledge and gone with the carriers, but there are technical reasons how it is the carrier-way or the highway. FCC last year set forth three rules – Providers can’t favor their own content, Providers need to explain variable speeds and Providers cannot limit access to lawful content, which Comcast had it overturned in court. Though FCC might posses the power to make rules on net-neutrality, albeit it is the technologies that control the flow of traffic which will decide how much of content delivery is neutral after all! Read more…