Tuesday 22 September 2009

CVs and Jobs via Souktel



A non-profit group in the occupied West Bank has started a scheme that uses mobile phone text messaging to help young Palestinians find work.

The group, based in Ramallah, has already registered 8,000 Palestinians on its Souktel system, most of them recent graduates. The system connects them to about 150 leading employers who are looking for staff.

Internet access in the West Bank remains low, reaching about one-third of the population. Most computer use is at internet cafes, which are largely male-dominated domains in what is still a conservative society.

Souktel enables young people looking for work to register by answering a series of simple questions in Arabic through text messages, which are used to create a mini-CV. They then receive regular information about relevant jobs on offer.

It costs little to use apart from a slight premium charged on each text sent. In the same way, employers can post notices about job vacancies and filter applications.

The project comes at a time when despite forecasts of improved economic growth in the West Bank, unemployment still stands at around 20%, with that figure even higher among young people.

The Palestinians are a highly educated population but the Israeli occupation in the West Bank, with checkpoints, roadblocks and frequent restrictions, makes it costly and difficult to travel and do business. Universities rarely offer careers advice.

You don't need an iPhone or to download software. It's just messaging and it works on a phone from 1995.

Souktel, an SMS service based in the Middle East and East Africa, is all about connections. The service, launched in 2006, uses SMS to connect users to everything from jobs and internships to humanitarian aid and youth leadership programs.

The name comes from "souk," the Arabic word for "marketplace," and "tel," or "telephone. Although at least 80 percent of people in Palestine have access to mobile phones, most people have Internet access only in cafés or public places, said Jacob Korenblum, co-founder of Souktel. "Getting information about medical care, jobs, and food bank services can be difficult," he said. And even at Internet cafes, Korenblum said that many people, especially women, lack access to these services. "We wanted to develop a very simple service," he said. "That's how Souktel started."

Korenblum who is Canadian, said that although he has been working in the aid sector since 2000, his personal interest in Palestine began in 2005. "I came to the West Bank to work for an NGO. The main things I realized was that there wasn't so much a lack of aid, but rather a lack of good ways to find out about it." Currently, Souktel is run by a team of six people, four of whom are Palestinian.

Souktel is a combination of two services -- JobMatch and AidLink. JobMatch is an SMS service that connects people seeking jobs with employers. Job seekers can register via SMS with Souktel, and then, through a series of text messages, enter details about themselves into the system. These include location, skills, career interests, and level of education. Whenever the job seeker is looking for a job, he/she can text "match me" to Souktel to receive an instant list of jobs that matches the resume that is already stored in the Souktel system. The job listings include phone numbers so that the job seeker can call potential employers to set up an interview.

Korenblum said that at least 2,000 people use the service each month and the service has about 8,000 total users. In the past year, JobMatch has connected about 500 people with jobs. Users tend to be between the ages of 18 and 25, and the system recently expanded to include internships and volunteer opportunities. In June, about 170 people found jobs using Souktel, but the service’s success is partially reliant on the economy.

Earlier this year, Souktel launched services in the Iraq and Somaliland. In the future, Korenblum hopes that Souktel continues to grow, and could be used to connect people not only with jobs, but with educational programs or health and social services. "SMS is pervasive,” he said. “It is also by far the most cost-effective way for people to get the information they need." He also hopes to continue to share Souktel’s platform. “We've been struggling with it for three years now, and we've arrived at something that works,” he said. “We want to save someone else time in trying to develop it, so they have something that is useful for them.”

If you find this interesting, check out a Souktel presentation here.

SMS for Emergency Services

I blogged few months back about SMS for emergency services in USA now the same is being tried in UK.

Ofcom is trialling a new system to let deaf people access 999 services using text messaging.

The system lets users who can’t speak send a text message to emergency services. Their text is received by 999 assistants and read out to fire, police or other emergency service. A reply is also sent back via SMS.

The trial kicked off earlier this month, with Ofcom asking people to register to test the service. As the trial will use actual emergency messages, it needs enough people to register to get a good feel for how the system is working as most won’t actually have cause to use it.

To register, text “register” to 999; anyone not registered will not be able to use the service.
Ofcom noted that users shouldn’t assume their message has been received until they’ve received a reply, and that anyone sending hoax messages will be prosecuted.


If the trial goes well, the texting system could be in place as early as next year, Ofcom said. It’s being supported by the major telecoms companies, as well as emergency services and the Royal National Institute for Deaf People (RNID).

SMS to the emergency website here.

Monday 21 September 2009

HSPA Functions and Benefits

Very interesting diagram summarising HSPA Functions and Benefits

Source: 3G Americas Whitepaper, HSPA to LTE-Advanced: 3GPP Broadband Evolution to IMT-Advanced (4G)

Friday 18 September 2009

Network Interfaces for Applications using Parlay and OneAPI

Here is an old posting on Parlay/OSA that might be useful to put things in context.

An important development related to service evolution is operators making interfaces available to external applications for information and control. Two widely deployed capabilities today include location queries and short message service. With location, mobile devices or external applications (e.g., applications operating on computers outside of the network) can query the location of a user, subject to privacy restrictions. This can significantly enhance many applications including navigation, supplying location of nearby destinations (e.g., restaurants, stores), location of friends for social networking, and worker dispatch. With SMS, external applications can send user requested content such as flight updates.

Until now, the interfaces for such functions have either been proprietary, or specific to that function. However, there are now interfaces that span multiple functions using a consistent set of programming methods. One set is the Parlay X Web Services, a set of functions specified through a joint project of the Parlay Group, the European Telecommunications Standards Institute (ETSI) and 3GPP. The Open Mobile Alliance (OMA) now manages the Parlay X specifications. Parlay X Web Services include support for location and SMS, as well as many other functions with which developers will be able to build innovative applications.

Table 4 (above) summarizes the available Parlay X specifications. Operators are beginning to selectively deploy these functions. The advantage of this approach is that developers can build applications that are compatible with multiple operator networks.

A related project is GSMA OneAPI, a GSM Association project to also define network interfaces, but that prioritizes implementation based on expected market demand. OneAPI defines a simplified Web service for most functions that is essentially a subset of the related Parlay X Web service. It also defines a REST (Representational State Transfer) interface for most functions as an alternative to using the Web service. RESTful interfaces are simpler for developers to work with and experiment with than Web services.

Regardless of whether operators deploy with Parlay X or OneAPI, these are mainstream interfaces that will open wireless networks to thousands of Internet programmers who will be able to build applications that leverage the latent information and capabilities of wireless networks.


Source: 3G Americas Whitepaper '3GPP Broadband Evolution to IMT-Advanced (4G)'

Thursday 17 September 2009

Wireless Subscribers Forecast 2014



Source: Informa Telecoms & Media, WCIS+, June 2009

Via: 3G Americas Whitepaper, HSPA to LTE-Advanced: 3GPP Broadband Evolution to IMT-Advanced (4G)

Wednesday 16 September 2009

Opera Mini: Better and More Popular


Opera Mini has been downloaded more than 25 million times from the GetJar mobile application store, the companies said.

The mobile browser is one of the most popular in the world because it is available on a variety of devices including Java, Android, BlackBerry, Windows Mobile, and other handsets. It is also able to run on relatively low-end hardware because it uses server-side compression technology to minimize the processing and bandwidth requirements.

Opera is bringing multipage browsing to its popular Mini browser, with a beta rolling out today. Mini 5.0 also gets a slick visual makeover, and touch support on devices that accept touch input.

Underneath it's the familiar Opera 4 Mini engine with a few tweaks, and existing users will be relieved that key shortcuts have been retained. But the proliferating screens of settings, bookmarks etc are now accessible by a pulldown menu. The address bar and search bar are integrated into the page view, almost exactly in the manner of iPhone Safari. Usually the ideas in the browser flow the other way.

Opera Mini 5, out now in beta, features a sleek new design to give the browser a more intuitive look and feel, the firm said. Also included is tabbed browsing, enabling users to browse several sites simultaneously, and support for touch screen as well as keypad-based browsing.

A Password Manager function acts as a "virtual memory bank" to store all a user's passwords for email, social networking and other online accounts, according to Opera.

Finally, Opera Mini 5 features Speed Dial, providing users with pre-selected web sites on loading the browser to jump straight to the content they want.

"The idea of navigating the vastness of the web from such a small screen can be a daunting leap, which is why we have long committed to make the browsing experience you are familiar with from your PC, easy to do on your mobile phone," said Jon von Tetzchner, chief executive of Opera Software.

"With new sleek navigation buttons, tabbed browsing and Speed Dial bookmarks, you are never more than a click away from where you want to go on the web."

Monday 14 September 2009

TD-SCDMA, TDD and FDD

After my posting on TD-SCDMA so many people asked me about what TD-SCDMA is. I am surprised that so many people are not aware of TD-SCDMA. So here is a quick posting on that.

TDD and FDD Mode of Operation

Basically most of the UMTS networks in operation are Frequency Division Duplex (FDD) based. There is also another variant called the Time Division Duplex or TDD. In reality there is more than one variant of TDD, so the normal 5MHz bandwidth TDD is called Wideband TDD of WTDD. There is also another name for WTDD to confuse people, called the High Chip Rate TDD (HCR-TDD). There is another variant of TDD as would have guessed known as the Narrowband TDD (NTDD). NTDD is also known as Low Chip Rate TDD (LCR-TDD) and most popularly its known as TD-SCDMA or Time Division Synchronous CDMA.

"Synchronous" implies that uplink signals are synchronized at the base station receiver, achieved by continuous timing adjustments. This reduces the interference between users of the same timeslot using different codes by improving the orthogonality between the codes, therefore increasing system capacity, at the cost of some hardware complexity in achieving uplink synchronization.

The normal bandwidth of FDD or TDD mode of operation is 5 MHz. This gives a chip rate of 3.84 Mcps (Mega chips per second). The corresponding figure for TD-SCDMA is 1.66 Mhz and 1.28 Mcps.


Assymetric operation in TDD mode

The advantage of TDD over FDD are:
  • Does not require paired spectrum because FDD uses different frequencies for UL and DL whereas TDD uses the same frequency hence its more easy to deploy
  • Channel charachteristics is the same in both directions due to same band
  • You can dynamically change the UL and the DL bandwidth allocation depending on the traffic.
The dis-advantage of TDD over FDD are:
  • Switching between transmission directions requires time, and the switching transients must be controlled. To avoid corrupted transmission, the uplink and downlink transmissions require a common means of agreeing on transmission direction and allowed time to transmit. Corruption of transmission is avoided by allocating a guard period which allows uncorrupted propagation to counter the propagation delay. Discontinuous transmission may also cause audible interference to audio equipment that does not comply with electromagnetic susceptibility requirements.
  • Base stations need to be synchronised with respect to the uplink and downlink transmission times. If neighbouring base stations use different uplink and downlink assignments and share the same channel, then interference may occur between cells. This can increase the complexity of the system and the cost.
  • Also it does not support soft/softer handovers
Timing Synchronisation between different terminals

By the way, in Release 7 a new TDD mode of operation with 10 MHz bandwidth (7.86 Mcps) has been added. Unfortunately I dont know much about it.

You can read more about TD-SCDMA in whitepaper 'TD-SCDMA: the Solution for TDD bands'

You can find more information on TD-SCDMA at: http://www.td-forum.org/en/

Sunday 13 September 2009

Scratch Input: Future Input for Mobile Phones




Very interesting...not being able to see past your fingers on smaller devices. That's where "scratch input" comes in. Harrison's prototype uses a digital stethoscope to pick up the sound of scratching on a table or wall. The device attached to the stethoscope, be it a phone, watch or a computer, is programmed to recognise the sounds of different scratch gestures. By tracing a spiral on his desk, Harrison can, for example, turn the volume down on his media player. Ultimately the microphone would be built into the device. Imagine a touch screen watchphone that can be controlled simply by scratching your arm.

You may be interested in reading this article Touch Screens at The Independent here.

Friday 11 September 2009

Ericsson's Exciter: Conceptual mobile Personal Area Mediator (PAM)

Interesting Video:



If you find this interesting, there is a presentation you can look at here. Unfortunately its in swedish but you can get an idea about which direction things will be going in future.

Thursday 10 September 2009

Huawei becomes a big player in LTE

[Shenzhen, China, 1 September 2009] Huawei, a leader in providing next-generation telecommunications network solutions for operators around the world, today announced that it has been granted 147 Long Term Evolution (LTE) patents by the European Telecommunications Standards Institute (ETSI), representing 12 percent of the total existing 1,272 LTE patents assigned by ETSI as of August 2009. The patents granted were across several key LTE sub-sectors, such as physical-layer air interface, radio resource management and connection management.

Huawei’s robust investment in LTE research and development has accelerated the commercialization of LTE technology. In June 2009, Huawei connected the world’s first LTE mobile broadband internet connection for Teliasonera in Oslo, Norway.

Huawei is an active participant in 91 standardization organizations, with over 100 committee leadership positions. In 2008, Huawei had filed a total of 35,773 patent applications globally.

Last year LG had claimed that it has upto 300 patents, not sure if that is still true.