Showing posts with label LTE World Series. Show all posts
Showing posts with label LTE World Series. Show all posts

Sunday, 23 March 2014

Securing the backhaul with the help of LTE Security Gateway

An excellent presentation from the LTE World Summit last year, that is embedded below. The slide(s) that caught my attention was the overhead involved when using the different protocols. As can be seen in the picture above, the Ethernet MTU is 1500 bytes but after removing all the overheads, 1320 bytes are left for data. In case you were wondering, MTU stands for 'maximum transmission unit' and is the largest size packet or frame, specified in octets (8-bit bytes), that can be sent in a packet or frame based network such as the Internet.

Anyway, the presentation is embedded below:

Saturday, 16 November 2013

Agile IMS for the All-IP Era

Presentation by Oracle in the LTE Asia Summit 2013

Tuesday, 22 October 2013

Korea Telecom ‘Route Decision System’ for midnight buses

Interesting presentation from Korea Telecom in LTE Asia 2013 about how they use Big Data to decide the night bus routes. Here are two pics which are self explanatory

We will soon start seeing operators using the data being collected from users and this can also be a nice little earner for them.

Monday, 12 August 2013

C-RAN Architecture and Challenges

I have blogged about Cloud RAN or C-RAN in the Metrocells blog here and am looking forward to more discussions on this topic in the SON conference later this year.

I came across this interesting presentation from Orange in the LTE World Summit this year where the authors have detailed the C-RAN architecture and also discussing the fronthaul challenges faced by C-RAN. The presentation is embedded as follows. Please feel free to add your comments with your opinions.

Thursday, 8 August 2013

2 Factor and 3 Factor Authentication (2FA / 3FA)

Found an interesting slide showing 2 Factor Authentication in picture from a presentation in LTE World Summit

You can also read more about this and Multi-factor Authentication (MFA) on Wikipedia here.

Friday, 19 July 2013

Nice way of showing HetNets, by Cisco #LTEWS

This is from a presentation by Akram Awad of Cisco in the LTE World Summit 2013 in Amsterdam. I really like the way HetNets are explained

Sunday, 7 July 2013

500 Billion devices by 2030, etc...

Few weeks back in the LTE World Summit 2013, I heard someone from Ericsson mention that internally they think that by 2030 there will be 500 Billion Connected devices on the planet. The population projections for 2030 is somewhere around 8.5 Billion people worldwide. As a result the figure does not come much as a surprise to me.

John Cunliffe from Ericsson is widely credited for making the statement 50 Billion connected devices by 2020. Recently he spoke in the Cambridge Wireless and defended his forecast on the connected devices. He also provided us with the traffic exploration tool to see how the devices market would look up till 2018. Here is one of the pictures using the tool:

In terms of Cellular connectivity, we are looking at 9 Billion devices by 2018. The interesting thing to notice is that in 2017, there are still some 4 Billion feature phones. While in the developed world our focus is completely on Smartphones, its interesting to see new and existing SMS/USSD based services are still popular in the developing world. Some months back I heard about Facebook developing SMS/USSD based experience for Feature phones, I am sure that would attract a lot of users from the developing world.

One thing missing from the above is non-cellular connections which will make bulk of connectivity. Wi-Fi for example is a major connectivity medium for tablets. In fact 90% of the tablets have only WiFi connectivity. Bluetooth is another popular method of connectivity. While its mostly used in conjunction with phones, it is going to be a popular way of connecting devices in the Personal Area Network's (PAN's). So its no surprise that we will see 50 Billion connected devices but maybe not by 2020. My guess would be around 2022-23.

Thursday, 20 June 2013

Economical M2M using LTE - #LTEWS

In the upcoming LTE World Summit 2013 (programme here), I will be doing a briefing on the topic 'Economical M2M using LTE'. I have some ideas but I would like to hear more on what you think? In fact, is LTE the right technology from the M2M device point of view? Or do they better stick to 2G (I dont think 3G is good enough generally from low data M2M point of view). What other issues can be foreseen? Security? Roaming?
A recent presentation from Telefonica shows how they are partnering with other operators worldwide to create universal solutions. Will this help? Why not use these solutions for everything, not just LTE? LTE is data only technology isn't it?

The presentation is embedded below to draw your own conclusion but I an interested in hearing your thoughts on Twitter or here on the blog.

Wednesday, 3 October 2012

#LTEAsia 2012 Highlights - via Alan Quayle

A summary of LTE Asia 2012, slides and highlights via Alan Quayle blog.

Some of the interesting findings from the conference include:
  • TD-LTE is gaining momentum, and its beyond WiMAX operators and China mobile, many APAC operators are considering it for unpaired spectrum and to efficiently meet the asymmetric capacity requirements of mobile broadband which is mainly download
  • Software defined radio and self-organizing networks are proving critical to manage operational costs
  • Single RAN is proving the best way to manage network performance
  • Signaling is in a mess - what is the good of standards when it creates such a mess?
  • IMS gaps continue - what is the good of standards when it doesn't meet basic migration needs?
  • The SS7 guys have reinvented themselves as the Diameter guys
  • Business model innovation - LTE is not just for mobile devices, LTE is for quad play and an interesting array of business applications
  • The 3G network of many operators is congested - forcing the move to LTE
  • CSFB (Circuit Switched Fall Back) works
  • VoLTE testing / roaming / network issues remain - given voice remains by revenue the core service, our industry should be ashamed we're having so many problems with VoLTE
  • A belief on OTT partnering, but not quantification on the OTT's willingness to pay for QoS (Quality of Service)
  • Many operators have a question mark on the use of WiFi off-load - its not a technology issue rather one of economics and customer experience, LTE-A and small cells in hotspots appears to be the focus.

Briefly reviewing the slides shown below:

  • LTE Data Points
    • 96 Commercial LTE deployments mainly in the 1.8 and 2.8GHz bands
    • APAC has 40% of LTE subscribers, likely to be the high growth region
    • Drivers for LTE: Throughput, efficiency and low latency
    • TD-LTE: 12 commercial deployments, 24 contracts and 53 Trials
    • Streaming video dominates traffic on handheld devices, with YouTube being the top traffic generator at 27% of peak traffic
  • South Korea Data Explosion
    • South Korea has seen OTT explode, Kakao Talk 51 mins of usage per day
    • 20 times smartphone growth in 2 years (28M in June 2012, 53% penetration)
    • 60 times mobile data growth to 37TB per month in 2 years, 32% is from LTE devices
    • LTE subs use 2.9GB per month compared to 3G sub on average use 1.2GB
    • LTE subs reached 10M, 141% monthly growth
    • Customer drive for LTE is speed (37%) and latest device (31%)
    • Challenge Jan 2010 and Jan 2012 ARPU fallen from $48-$35 while data use risen from 180MB to 992MB
    • Focus beyond voice, messaging and data into VAS: virtual goods (Korean thing), ICT (Information and Communication Technology) and cloud services / solutions (focus on enterprise)
  • HK CSL Migration to LTE
    • 3G is congested, LTE is not
    • Key is LTE devices available, unlike the early 3G days
    • Migrating customers away from unlimited plans to family and shared plans that deliver value
    • LTE sub uses 2-5 times the data of 3G subs
    • CSFB works
    • Average speed seen is 20 Mbps
    • Using Software Defined Radio, Single vendor RAN, Self-Organizing Networks
    • Migration to LTE-A, small cells and WiFi where appropriate
  • Starhub's migration to LTE (they launched LTE at the event)
    • 50% of voice traffic is still on 2G
    • Using AMR to re-farm 2G spectrum to LTE
    • Site access is critical - drive to software defined radio to avoid site visits
  • NTT DoCoMo's VoLTE Evolution
    • 70% devices in portfolio are now LTE
    • All smartphones support CSFB
    • Drive to VoLTE is simply to switch off 3G voice (2G already off)
    • BUT IMS has missing functionality / standards - migration from 3G to VoLTE is not easy - example of failing in standards on basic issues
  • Yes: Example of innovative converged 4G operator in an developing market that uses web principles for service delivery
  • Role of Mobile Identity in BYOD (Bring Your Own Device)
    • BYOD is as significant a trend if APAC as any other market
    • Provides a nice review of the approaches in managing BYOD
  • LTE Quad-Play in Emerging Markets: TD-LTE case study
  • Smartphone growth implications: Review of the signaling problem and mitigation strategies across 3G and LTE.  Highlights challenge current standards process 

Read the complete post here.

Wednesday, 12 September 2012

UK: Spectrum, Operators, Vendors and LTE

So LTE (or '4G') is about to be launched in the UK as announced yesterday. Its going to be branded as 4GEE.

Here is a summary of the Spectrum in the UK that will be used for LTE and would be auctioned by Ofcom.

Here is the current allocation of Spectrum in the UK

The above pics are from a presentation by Ofcom in LTE World Summit 2012 in Barcelona, available here.

The last table is from an Ofcom document here. Its very interesting read. For example I didnt know that The L-band was the first major part of Ofcom spectrum awards programme relevant to mobile services. It consists of 40MHz between 1452MHz and 1492MHz. The auction took place in May 2008, in which Qualcomm won the entirety of the available spectrum.

Here is the summary of the operators working on LTE:

Everything Everywhere (EE = Orange + T-Mobile) - They are calling their '4G' service as EE, covering up to 70% of the UK by the end of 2013. Network kit provided by Huawei.

Three - Samsung will provide the Radio Access Network, and the core infrastructure, for Three's LTE (4G) network. That includes the base stations, and radio core. 3 UK has agreed to purchase 2 x 15 MHz of 1800 MHz spectrum from Everything everywhere, and plans commercial launch of LTE service in 2013.

Telefonica (O2) trial network - Equipment supplied by Nokia Siemens Networks (NSN) for both the Radio and Core network elements. Backhaul for the 4G trial network has been provided using Microwave Radio Equipment from Cambridge Broadband Networks Limited, NEC and Nokia Siemens Networks.

Updated 13/09/12 - 11:25

UK Broadband rolled out the first commercial TD-LTE network in London back in February (available to customers since May 2012). The equipment is provided by Huawei. They have 40MHz in Band 42 (3.5GHz) and 84MHz in band 43 (3.6GHz).

Vodafone - No news.

Anything else I missed?

Friday, 27 July 2012

PCC developments to take advantage of LTE capabilities

Another interesting presentation from the LTE World Summit 2012. The part that I find most interesting is slide 10 onwards that talks about Evolution of the PCC to include user Engagement. There is also a scope for 'Sponsored Data Connectivity'.

Tuesday, 26 June 2012

Multi-Vendor SON in Het-Net

From a presentation by Prof. Shahram G Niri, NEC in the LTE World Summit, Barcelona.

The complete presentation is available here.

Monday, 25 June 2012

LTE Small Cells, SON and HetNets

From a presentation by Prof. Shahram G Niri, NEC in the LTE World Summit, Barcelona.

The complete presentation is available here.