Currently viewing the tag: "Release 10"

PrintRecently Verizon made some waves by announcing their intention to deploy LTE Release 10, specifically the Carrier Aggregation (CA) feature. Naturally I have lots to say on this topic so I thought I would forget what I wanted to say and just hypothesize and prove if true or not. So today is the hypothesis.

Verizon’s over the air (OTA) efficiency is very low with their existing 700MHz deployed channel, and this will not significantly improve without any changes. Therefore, my hypothesis is that when they flip the switch nationwide (depends on device/UE availability of course)  that only people living in deep fades will realize a significant gain… and furthermore, AT&T’s OTA speeds won’t seem that far behind with their 10MHz vs Verizon’s 20MHz. That’s pretty bold but I have my reasons. I will close today with a very typical observation… a clue, from Verizon’s network. Screenshot_2013-12-12-17-44-24 Thanks to my handy WINd tool- I can make these measurements 24×7 with no hands ma…:)

I’ll try to be wrong or right tomorrow!

 

netgear

NETGEAR Mobile Hotspot and Anritsu LTE Network Simulator Utilized in LTE-Advanced Carrier Aggregation

Not sure why but this PR struck me as amusing…Leaves nothing to the imagination, eh?
Published on May 23, 2013 at 6:25 AM

Anritsu Company announces that LTE-Advanced Carrier Aggregation (CA) devices are one step closer to commercial deployment with a demonstration of 150 Mb/s data throughput at CTIA2013.

The demonstration will be performed using the new NETGEAR AirCard 780S Mobile Hotspot and Anritsu MD8430A LTE Network Simulator with RTD test sequences. Aggregation of two 2×2 MIMO carriers into one “pipe” will be shown, with data rates faster than most commercial networks currently on the air. Anritsu and NETGEAR will provide the demonstration of LTE-Advanced CA capability in Anritsu’s booth (#6123) at CTIA2013, May 21-23 at the Sands Expo and Convention Center in Las Vegas.

“Anritsu is pleased to continue to provide leading-edge support for LTE-Advanced features such as Carrier Aggregation,” said Michael Barrick, Sr. Business Development Manager, Anritsu Company. “We look forward to providing additional solutions in our portfolio as CA devices move into high-volume manufacturing and broad deployment.”

“NETGEAR is continuing to drive the development of leading-edge wireless technologies that make connecting to the Internet simple and available to all,” said Michael Clegg, General Manager & Senior Vice President, Service Provider Business at NETGEAR. “The recent addition of the AirCard product team is a real demonstration of NETGEAR’s commitment to extending this leadership into the 4G LTE market. Collaboration with leading ecosystem partners like Anritsu is an important part of the work needed to bring leading-edge technology to market, and the NETGEAR team is pleased to participate in Anritsu’s CTIA program.”

The NETGEAR AirCard 780S Mobile Hotspot is the first in a series of products currently in development that will support LTE-Advanced CA technology. LTE-Advanced CA is an important advancement that allows wireless service providers to harness fragmented spectrum resources to provide unmatched speed and coverage benefits to LTE subscribers.

The MD8430A LTE Network Simulator can simulate up to two active and four interfering LTE base stations on up to four RF channels. A mix of Frequency Division Duplex (FDD) and Time Division Duplex (TDD) base stations can be simulated, with multiple MIMO configurations possible for each base station, including SISO, 2×2 MIMO or 4×2 MIMO. A full lineup of advanced Rel. 8, 9, and 10 features are available, including Carrier Aggregation, Dual-Layer Beamforming, Enhanced Multimedia Broadcast Multicast Service (eMBMS), Robust Header Compression (RoHC), Semi Persistent Scheduling (SPS), and others. The MD8430A is a building block for Anritsu’s LTE Conformance and Carrier Acceptance Test (CAT) solutions, including the ME7873L LTE RF Conformance Test System and ME7834L Mobile Device Test System.

The MX786201A RTD scripting software gives users the power to create tests that cannot be done with traditional language-based tools. RTD supports testing at multiple layers in the device stack, with Low-Level Procedure Libraries for early stages of device development, and auto-configuring Layer 3 Procedure Libraries for later stages of device development. Reference Test Cases and Integration Libraries are available to enable building customized test cases and libraries with ease.

Source: http://www.anritsu.com/

SKT announced a pilot program in which they are deploying Multi Carrier LTE in the Seoul area, to facilitate higher throughputs without moving to Release 10 just yet. The pilot testing has started as of today and they plan to offer commercial service in July for around a 30 day test window. The deployment will expand from the golden cluster around Gangnam Station to all of Seoul this year and through another 23 urbanized areas/cities in South Korea by 2013. This announcement is multi carrier with 20MHz of spectrum at 800MHz and 20MHz at 1800MHz and not carrier aggregation although they tout their network as fully utilizing 40MHz of spectrum to provide service. They also mention that the Pantech Vega Racer 2 is their first UE to support this. So here’s my take on this interesting approach.

If they deployed a single vendor for 800/1800 MHz LTE, like Samsung, then the network would of course support load sharing between carriers. It’s still possible to do this between OEMs but I don’t think the capability exists from 3rd parties yet.

It appears to me the SKT innovation is to have a network testing algorithm on the UE allowing the UE to determine on initial attach which network was the least congested and/or most capable of greater throughputs.

Network carrier load balancing only would have some disadvantages because initially UEs would attach based on some rules such as provisioning or signal strength etc… whereas a UE assisted approach (both network and UE) would reduce the initial inefficiency. Also noteworthy is the fact that 1800 and 800 MHz have different propagation characteristics, so it’s likely 800 will be commonly used indoors and 1800 more outdoors just based on RF conditions. If they have somehow accelerated handover between carriers, it may be possible to realize a small performance gain just by more rapidly load balancing when entering hot spot areas and so on. Tiered networks in general have advantages if you could realize them, such as you could actively manage heavy users vs data sippers to optimize overall network throughput. It will be interesting to see how this moves forward. I think US operators would be interested in this too, I can think of several that have multiple spectrums and they may never aggregate them based on the costs. 

Good stuff SK Telecom!

Full PR Below.

Links: SK Telecom

  • Becomes the only Korean company to use 40MHz bandwidth to ensure fast speed even with growing number of customers
  • Begins MC pilot service in the area from Gangnam Station to Kyobo Tower Crossroads from today and plans to launch world’s first commercial MC service in July 2012
  • Plans to apply MC to the whole Seoul area within this year and 23 other cities including metropolitan cities by early 2013
  • MC is embedded in Vega Racer 2 and the company is making efforts to include MC as a basic feature for all LTE smartphones to be launched from the second half of 2012

 

SK Telecom (NYSE:SKM) announced today the world’s first launch of pilot service for Multi Carrier (MC), a technology that enables use of both 800MHz and 1.8GHz frequency bands, in the area from Gangnam Station to Kyobo Tower Crossroads, and also revealed plans for its commercial launch in July 2012.

■ Secures twice wider frequency bandwidth to support unrivalled LTE service speed and quality

With the commercialization of MC, SK Telecom will be able to offer the fastest LTE speed in Korea as it will be utilizing twice wider frequency bandwidth than its competitors.

The company developed MC technology to utilize both its existing 800MHz frequency band and the 1.8GHz band it newly acquired in the second half of last year. With an additional 20MHz uplink/downlink spectrum, it will be using a total of 40MHz for its LTE services.

The biggest strength of MC lies in that it allows the use of additional frequency bands and enables effective and efficient use of frequencies. As it chooses the faster one between the two frequency bands for LTE communications, mobile data traffic is optimally distributed to each frequency band, preventing network overload.

The MC system is similar to building an additional road in the always-congested area and then controlling the traffic to ensure smooth flow on both roads. For instance, upon detecting LTE user concentration in the 800MHz band, the system automatically moves data traffic to 1.8GHz to improve data rate. Therefore, LTE users can experience the fastest speed even at times of unexpected surges of mobile data traffic.

■ Commercialization of MC to begin July 2012, with plans to cover the whole Seoul area within 2012 and 23 other major cities by early 2013

SK Telecom will complete the optimization of handset-network interworking and handover between frequencies during the MC pilot service period and plans to commercialize the MC service in July 2012. The technology will be applied to all areas of Seoul in 2012 and expanded to 23 cities nationwide including metropolitan cities by early 2013.

SK Telecom already embedded the MC feature in Vega Racer 2 released in May 2012 and is currently in talks with device manufacturers to include MC as a basic feature for LTE smartphones. Upon commercialization of the MC service in July, users of Vega Racer 2 can receive automatic firmware upgrade by authorizing the process via responding to the text message sent to them.
※ MC service does not support existing LTE devices due to differences in frequency bands

■ Use of 1.8GHz to help spread LTE roaming service

The use of 1,8GHz frequency band will allow SK Telecom to offer LTE roaming service in many different countries. Currently, around 10 countries in Asia and Europe have chosen the 1.8GHz band for LTE services and it is expected that more and more operators around the world will use 1.8GHz, a GSM frequency band, for LTE.

Furthermore, the use of the 1.8GHz, the mainstream frequency spectrum for global LTE deployment, will boost the adoption of diverse LTE devices and network equipment, thereby allowing the company to secure differentiated competitiveness to maintain its unrivalled leadership in the Korean market.

Kwon Hyuk-Sang, Executive Vice President and Head of Network Division at SK Telecom said, “SK Telecom will provide the fastest and the most reliable LTE service through the world’s first adoption of the innovative Multi Carrier technology that allows for the use of twice wider frequency bandwidth than its competitors in Korea. Building on this milestone, SK Telecom will maintain its efforts to keep setting new standards for excellence in LTE services.”

 Cognovo and Rhode & Schwartz are demonstrating Release 10 over the air at Mobile World Congress. Cognovo is putting their CDC160, a Software Defined Radio (SDR) processor to work as the baseband processor and Rhode and Schwartz (R&S) is chipping in their Vector Signal Analyzer SMU200A and Option K85 as the front end to demonstrate carrier aggregation of 2 x 20MHz LTE carriers for an effective 40MHz channel over the air. This should be pretty cool to see just from a novelty standpoint. 

 Let’s see, 40MHz of Release 10 should peak (PHY) from about 600Mbps downlink and 270Mbps uplink to 144Mbps/43Mbps (2×2 MIMO) based on the configuration they have set up.

 

Links: Cognovo, Rohde & Schwarz

 

I generally try to stay away from simply repeating what’s on every news page, blog etc on the planet at the moment. What I will instead make some commentary about is the position these guys are in and why LTE Advanced. Maybe it’s more like stream of consciousness but there’s only so many hours in a day….

It all started many moons ago at Nextel, following the Sprint acquisition, the fusion occurred after throwing in some explosive ingredients like Morgan O’brien, and Barry West a supporting cast like the Sprint management team, in a small space and well, the fusion reactions begin with the decision to deploy WiMAX 802.16 (TDD)

 with all of the weird 2.5 spectrum, under the banner of Xohm…. (Yes, I waaay oversimplify but you get the general gist.)  Of course we have the whole Craig McCaw angle with the ClearWire startup and their management team including John Saw etc… that started down a similar path starting with their original Motorola Canopy system, switching to WiMAX with their Sprint joint activities, and ending in their merger with Xohm 

to form Clear.At this point you have a startup company with oodles of spectrum at 2.5GHz, a fair number of launched markets with 802.16 (TDD), and so far lots of debt and not millions and millions of subscribers. Clear’s decision to deploy LTE Advanced in TDD mode sort of is harmonious with their existing 802.16 networks as they share similar bandwidths and requirements to use multiple antennae. Sprint even did some legwork for them with a full out RFP to select 3 OEMs that could provide CDMA/WiMAX and LTE in the same base station. This cleared the path technically for Clear to theoretically upgrade their existing (newer) base stations to support LTE as an additional carrier.

This buys them a more certain future with respect to devices of course as the world seems to be moving towards LTE and away from WiMAX.

 

Now competitively this was a very logical move since their wholesale partner, Sprint, as I mentioned, is also on the path for upgradable base stations to provide LTE on their own plus they have some funding for the upgrade since they did a wholesale (two way) deal with the satellite LTE provider Lightsquared.

 

Clear has announced they plan to deploy 120MBps service so this means roughly 20MHz with 4×4 MIMO will be allocated to the task. (Wow, Add that to their existing WiMAX carriers and that is some serious backhaul required at each site…if each sector supported 20Mbps of WiMAX and 120Mbps of LTE, then 360Mbps per site ideally…) There are few operators capable of 20MHz allocations in a single band so they do have a competitive edge in this area if they can figure out the backhaul.

Source: Clear

Full PR after the break…

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There is an interesting release from NetLogic Microsystems that their OP6100 supports 65MHz Occupied Band Width (OBW) with 145MHz of total bandwidth. This part seems like a great part to think about for LTE Advanced systems, and multigenerational basestations that need to support multiple carriers and formats simultaneously. On the other hand, not sure if there are any interference countermeasures (or efficiencies to implementation) in the various spectral interference hotspots and I haven’t been able to discover any additional information on their site. So a potentially game changing part but not 100% of any specifics. Good for the industry overall I suppose.

 

 

 

 

 

 

 

Link: NetLogic Microsystems

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This is very impressive. University of Illinois at Urbana-Champaign researchers Jennifer Berhnard and Jennifer Lewis have devised a clever method of fabricating an antenna in 3D using silver nanoparticle ink on glass hemispheres. The resulting antenna is a high Q, electrically small (ESA) antenna that outperforms other ESA (monopoles. ) Using these in smart phones could result in dramatically high performance networks. Suddenly 1Gbps that is offered in LTE Release 10 doesn’t seem to hard to imagine. If these are robust, I would expect to see them in special devices like embedded radios, femtocells and so on. This could be big news! 

 

Links: UofIllinois Ubana-Champaign, Advanced Materials Magazine

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Design Art Networks has released a 40nm SoC that is very respectable in terms of specifications.  It is Release 10 (LTE Advanced) ready and only consumes 8W at full power, supporting up to  80MHz aggregate spectrum, and 16TX + 16RX paths (= 4 sectors of 4×4 MIMO). If the price is right, beware the onslaught of highly capable, low profile, base stations!


In its full glory following break.


Links: Design Art Networks, Business Wire

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Tomorrow, the 30th at the Self Organizing Networks (SON) show in the UK, Eden Rock Communications is going to share some details around their SON tools and their Coordinated Multipoint (CoMP) Coordinated Scheduling (CS) algorithm. The interesting bits are they have pulled up this (formerly?) Release 10 (AKA LTE Advanced) feature (CoMP) into the current Release 8 network and added their own spin (within CS) and have test results to share with the world. It’s interesting to me because COMP is going to be BIG news. More after the break…

Source: Eden Rock Communications, Market Wire (PR)

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