Femtocells for Beginners

Good beginner level primer for Femtocells is available at Radio-Electronics website. It covers important topics like architecture, interference, security and health issues. Wort a read if you are a newbie to the Femto domain. Click here.

Speech for Mobile to become big industry

Its interesting that its not only Google that experimenting with Voice Recognition and Voice search but a whole lot of other players. Earlier I blogged about Real time Speech Translation and another one was the Voicemail search. Google's search App also allows to search using voice rather than by entering text.

SpeechTek Europe 2010 is a new conference that promises to make everyone aware of the new Speech Technologies and their application in Mobile and other domains.

From EarthTimes:

Produced by the publishers of the industry’s best-read magazine, Speech Technology, SpeechTEK Europe is the sister of the highly successful New York annual event series and aims to capitalise on the wealth of speech innovators based here in Europe.

The conference has been developed by a Steering Committee which comprises some of the industry’s most respected thought leaders. Here they share their insights into the future for speech technologies, how they are developing, and where they will be used.

Loquendo’s Vice President of International Sales, Rosanna Duce, predicts that voice control will be a major growth area in the next five years:

“One important emerging speech technology is undoubtedly the voice control of all kinds of devices, for example, PDAs, mobile phones, DVD players.” She comments, “These technologies are currently being expanded and upgraded to allow all functions to be accessed using voice, thus eliminating the need to use a keyboard. Consumer demand seems to suggest that the option to dictate text messages will be a major source of growth in this area, as will be the reading of incoming messages by a TTS application bundled with the phone/PDA.”

Nava Shaked, CEO of Business Technologies, agrees,

“The combination of voice search engines, internet and mobile is a real opportunity for speech technology growth and influence. This includes the introduction of previously unseen applications for voice user interface and transcription. The combination of voice and video is also promising and will be inevitable in our interaction with multimedia.”

James Larson, the Conference Chair, supports these views,

“Multimodal applications on mobile devices will enable customers to not only speak and listen, but to also read and type and use additional modes in interaction. These apps will be easy to learn, easy to use, and much more natural than current voice-only apps or GUI-only apps. They will always be available, and customers can use them wherever they are, not just at their desktop or in their car.” He concludes, “Multimodal applications on mobile devices will dramatically change how we interact with appliances - TV, radio, environmental control - with the internet, and with other people.”

The SpeechTEK Europe conference programme explores these trends and the implications for the industry as a whole. Real world applications and case studies are a particular feature of the event, so delegates can see for themselves how speech is working in a variety of different environments, how to select and implement the technology, and how to evaluate its performance.

The full SpeechTEK Europe programme is available at: www.speechtek.com/europe2010 along with registration information, details of registration savings, and free entry exhibition tickets.

IPv6 transition in cellular networks gaining momentum

IPv6 is good and we all know that. I has been talked for years but practically it hasnt found much success. Verizon made some noise last year but I am not sure of the conclusion.

Just to recap, IPv4 was introduced back in 1982 and IPv6 work started since 1995. IPV4 uses 32 bit (4 bytes) addresses while IPV6 uses 128 bit (16 bytes) addresses. Theoretically we would now have 2^96 times more addresses than in case of IPv4.

Most of network infrastructure manufacturers have their equipment ready for IPv6 as some of the handset manufacturers. The main driver being that someday soon IPv4 addresses would be exhausted (Internet Assigned Numbers Authority will run out of IPv4 addresses in September of 2011, based on current projections) and their equipment would be ready to provide IPv6 addresses without any problems.

Recently, IETF-3GPP Workshop on IPv6 in cellular networks was held in San Francisco, USA on 1 - 2 March, 2010. There are lots of interesting presentations available here for people who want to dig a bit deeper. The concluding report that summarises the presentations and discussions are available here. Here is a brief summary from one of the reports (with links at the end):

Summary

• Scenarios for IPv6 migration were discussed based on 3GPP Technical Report 23.975
• The discussion focused on validating the scenarios
• General IPv6 transition and deployment guidelines were outlined based on input from IETF
• Solutions for migration and v4-v6 co-existence were presented
  
• Solutions included existing RFCs and working group items but also proposals in Internet Drafts
• Gap analysis wrt transition scenarios was discussed

Conclusions on scenarios

• Scenarios 1 and 3 based on dual-stack and IPv6-only deployments were generally recognized as valid
• See docs IPW100013, IPW100028
• Scenario 2 was also recognized as valid, addressing two separate problems related to insufficient RFC1918 space and subscriber identification
• See doc IPW100027
• Scenario 4 did not receive wide support from the workshop, largely because it was felt that it addressed a problem already solved by other scenarios
• Variants of some of these scenarios were brought up during the discussions, conclusions were not reached on these
• These may need further discussion

Conclusions on solutions

• It was recognized that necessary support in the network and devices is already available to “switch on” IPv6 in 3GPP networks
• Some networks reported running dual stack
• Some networks reported running IPv6-only now
• Solutions enhancing existing mechanisms for dual stack deployments and new solutions for IPv6-only deployments drew wide support
• Gateway-initiated Dual Stack Lite
• Stateful IPv4/IPv6 translation

Next steps: 3GPP

• IETF and 3GPP are expected to focus further work based on the conclusions of the workshop
• Note that the workshop itself does not have the mandate to make formal decisions
• 3GPP is expected to identify possible normative specification impacts, if any, of the preferred solutions
• A need was identified to provide more operational guidelines about IPv6 deployment to 3GPP operators
• The best location for these guidelines is FFS (e.g. 3GPP TR 23.975, GSMA, etc)

Next steps: IETF

• IETF and 3GPP are expected to focus further work based on the conclusions of the workshop
• Note that the workshop itself does not have the mandate to make formal decisions
• IETF is encouraged to continue working on stateless and stateful IPv4/IPv6 translation mechanisms
• These mechanisms are being worked on in IETF BEHAVE group
• IETF is also encouraged to consider new solutions that are not yet working group items
• Gateway Initiated DS Lite
• Per-interface NAT44 bindings addressing IPv4 address shortage
• Note that the workshop has not set any timelines

Further reading:

• 3GPP TR 23.975: IPv6 Migration Guidelines, Release 10 (http://www.3gpp.org/ftp/Specs/archive/23_series/23.975/)
• 'IETF-3GPP Workshop on IPv6 in cellular networks' Workshop Presentations (http://www.3gpp.org/ftp/workshop/2010-03-01_IPv4-to-IPv6_with-IETF/Docs/)
• 'IETF-3GPP Workshop on IPv6 in cellular networks' Workshop Summary Report(http://www.3gpp.org/ftp/workshop/2010-03-01_IPv4-to-IPv6_with-IETF/Report/)
• 3G Americas Report on 'Transitioning to IPv6' (http://3gamericas.org/documents/2008_IPv6_transition_3GA_Mar2008.pdf)
• Is IPv6 Finally on the Verge? - Light Reading (http://www.lightreading.com/document.asp?doc_id=189143)
• Jari Arkko's Publications (http://www.arkko.com/publications.html)

The size of Mobile Market (Amazing Pic)

Click on the photograph to view the larger version. I assume, its self explanatory.

Via: Mr. Mobile Blog

Mobile Apps market to grow to '$17.5bn by 2012'

A study done for Getjar, the world's second biggest app store, said the market will grow to $17.5bn (£12bn) in the next two years.

The study claimed downloads would climb from 7bn last year to 50bn by 2012 - a 92% year-on-year increase.

It found there had been a gold rush with the number of app stores rising from four before 2008 to 48 today.

The study also suggests Apple's domination of the market could be challenged.

The report titled, 'Sizing up the Global Mobile Apps Market' by Chetan Sharma is available to download here.

Some more interesting stats from the report as follows:

• The overall mobile apps downloads are expected to increase from over 7 billion in 2009 to almost 50 billion by 2012 growing at the rate of 92% CAGR
• The revenue from mobile apps which includes both paid downloads and revenue from advertising and virtual goods is expected to increase from $4.1 billion in 2009 to $17.5 billion by 2012 at the rate of 62% CAGR.
• The overall global subscriptions base is expected to exceed 5 billion by the end of 2010 with over 27% of them being data subscribers
• Non-carrier appstores jumped from a mere 8 to 38 last year
• In 2009, advertising contributed almost 12% to the overall apps revenue.
• The price range of applications in various stores can vary from $0.99 to $999.

Ringtones to help you in your daily life..

I am sure you must have heard of Music being used to torture terrorists or hardened crminals. Now you can have complete different use of music or ringtones in this case. “Well . . . I can definitely feel a bit of adrenalin,” says Yukari Sendo, savouring the mobile phone ringtone like a fine wine, “but it really doesn’t make me want to do any housework.” She flicks through a menu of alternative tunes and settles on one that offers to improve her skin tone through the power of alpha-waves. Ms Sendo and her friend Ayaka Wakabayashi are among an army of young Japanese drawn to the allure of “therapeutic ringtones” — a genre of melodies that promises to ease a range of day-to-day gripes, from chronic insomnia to a rotten hangover. Japan is no stranger to bizarre phone fads but the popularity of the ringtones is perhaps surprising given the flimsiness of the science behind them. Much of the tones’ credibility rests in the solid reputation of Matsumi Suzuki, the head of the Japan Ringing Tone Laboratory, an eight-year-old subsidiary of the Japan Acoustic Laboratory.

Mr Suzuki’s adventures in the realm of mood-altering ringtones follow a career at the National Research Institute of Police Science, where he made award-winning advances in the field of voiceprints. One of his proudest achievements was the development of a synthetic mosquito noise that is inaudible to Japan’s over-60s but supposedly discourages teenagers from “congregating in parks at midnight”.

A spokesman for Index, the giant Japanese mobile phone content provider that sells Mr Suzuki’s ringtones, explains that while there is a shortage of actual experimentation, “the number of downloads suggests the ringtones must be working to a certain extent”. Index’s other innovations include an iPhone application that translates your dog’s bark; the “Bowlingual” automatic canine interpreter draws on an database of woofs from dozens of species.

The first therapeutic tone, a high-energy rhythm, tested for The Times by Ms Sendo and Ms Wakabayashi, was supposed to provide a sudden burst of impetus to sluggardly housewives. Yukari and Ayaka had their doubts.

The tone that is said to improve skin mixes a burst of electro-Schubert with woodland noises such as birdsong and streams. “I suppose it might subconsciously make you think of washing your face, and that is good for the skin,” said Ayaka. “At least, it would certainly send you towards the bathroom.”

Ms Sendo and Ms Wakabayashi were marginally more impressed by the sleep-inducing and sleep-preventing tones, suspiciously akin to a lullaby and a dance track. The one with most practical use, they concluded, was the tone that scares away crows — the sinister jungle ravens that terrorise the dawn streets of Tokyo by pecking at bags of rubbish.

Mr Suzuki’s latest ringtone has been timed to coincide with the Japanese hay fever season. The Ohana Sukkiri Melody emits a series of sounds at different frequencies “so that people can choose the sound that resonates most to their sinus and causes pollen lodged there to fall from the nasal cavity”.

Index admitted that it had not conducted any research on how great a pollen deluge would be induced by the ringtone but said that it was “generally understood” that resonance would help hayfever sufferers if they brought the phone close to their noses.

When it came to testing the hangover chaser ringtone, Yukari and Ayaka were relieved from experimental duties. This popular application works through what Index describes as a careful selection of “pulse-melodies” chosen for their astonishing atunement to the body’s “medical rhythms”. Testers concluded that a fried breakfast, though less portable, still had the edge.

How to avoid network choking in the future?

If you are looking for an answer to this question then you wont find an answer to that here. Probably no one really knows a complete answer to this question right now. A simple answer would be to have a mix of the Macro cells, Micro cells and Femtocells with some way to offload some more traffic via WiFi.

Earlier this month Skype announced that its client would be able to work on most Symbian phones. I have used the Skype client on phones from '3' and they work great. Skype is even available on iPhones and they were downloaded 1 million times in the first couple of days. Now a big chunk of operator profits come from long distance calls and calls when abroad. If we all start using our phones with Skype, its going to bite into the operators profits. That means they will have to recover this profit from us by another way.

Skype on phones will be used in always on mode, meaning that the networks will get loaded and get congested. A simple solution is to have Femtocells at home that can offload the traffic on Internet. These background apps do cause a considerable amount of traffic and recently an Operator blamed the apps for its network woes.

Femtocells have been targeted generally at the residential market with developments going on for Business users as well. Another smaller Picocells and Microcells are also easily and cheaply available nowadays. With the Ad-Hoc deployment of all these smaller cells, Self Organising Networks (SON) may have a big role to play.

What happens where there are multiple networks present in the same place via these smaller cells? Can the back-haul not get congested because of these multiple networks which may be lying Idle most of the time? How would these impact other services that we use on our PC's?

These questions can be easily answered if a single Microcell/Picocell/Femtocell was able to work for Multiple Networks. Practically this may not be possible right now because each network has a different Authentication and Security arrangement.

At least we can start thinking and working on these problems while we still have time. When its too late, we may have to come up with workarounds. These workarounds only cause more headache in the longer term.

Picture Source

Qualcomm's FLO on the go...

Qualcomm's FLO TV is a reality in the U. S. of A. This is the advert which was being shown in the Superbowl

Many popular channels like the CNN are available real time. The following is a review from CNET.

Not everyone is enthusiastic, which is understandable considering the high cost.

I remember reading a research couple of years back which said that users are willing to pay a maximum of £5 for any service like the Internet or Mobile TV over their phone. Personally I think that is right and maybe in the next few months we may see the subscription prices dropping.

I would be interested in hearing from people who have experienced the FLO service first hand.

Motorola (Concept) Phone that will help capture memories

A bit old new but new for me.

The idea, known as the Motorola 2033 Concept Series, was based around what mobile phones might look like in the year 2033.

The 2033 concept would allow for the device to capture memories directly from the user’s brain, through a process Motorola calls "organic memory capture". And if that wasn't enough, the 2033 concept would also allow users' to completely augment their eyesight through a process called Second Sight.

More concept phones here.

HSPA+ to reach 168Mbps in Release-10

Just when we thought that we have squeezed every bit out of HSPA, a surprise waiting is the speeds of upto 168Mbps in the downlink. Going back to the 3G Americas report, there is a section in the end that details HSPA+ enhancements for Rel-10:

Rel-8 introduced dual-carrier HSDPA operation in the downlink while Rel-9 similarly introduced dual-carrier HSUPA operation in the uplink and also enhanced the dual-carrier HSDPA operation by combining it with MIMO.

Further enhanced multi-carrier HSDPA operation is being specified for Rel-10, where the base station will be able to schedule HSDPA transmissions over three or four carriers simultaneously to a single user with the carriers are spread over one or two frequency bands. Solutions specified in earlier releases can be reused to a large extent. The difference is that now it is possible to configure a UE with one primary serving cell and up to three secondary serving cells. As in earlier releases, the secondary serving cells can be activated and deactivated dynamically by the base station using so-called “HS-SCCH orders.” With MIMO transmission on all four carriers, the peak rate would be doubled to 168 Mbps compared to Rel-9 and for typical bursty traffic the average user throughput would also experience a substantial increase.

Remember, I posted a blog on data rates calculation? The maximum data rate in Release-8 HSDPA is 42Mbps. With Dual-carrier operation, this could be doubled to 84Mbps. As you can probably guess, with 4 carriers, this will become 168Mbps ;)

For people who are less technically inclined, can check this Ericsson presentation on HSPA+ data rates. For people who may become sleepless without some technical references can check this report from RAN WG#1 meeting#59. If you are not sure what RAN WG#1 is, check quick tutorial on 3GPP here.

Going back to the 3GPP report, section 5.4 lists the details of 4 carriers HSDPA. It would be interesting to see what happens in cases where initially there were 4 carriers but then in a particular spot it changed to 2 carriers, and vice-versa. People who have yet to work on LTE may not have to worry too much as HSPA is being future proofed against the threats of LTE and WiMAX.

Interestingly enough, HSPA+ offers a better and cleaner solution at the moment especially with regards to voice calls and handing over to GSM then LTE or WiMAX.

It wont come as a surprise if the HSPA+ camp are able to pull out some new tricks from their bag just in time for Release-11.