We would like to briefly summarize the keynote given by Sony Limited Europe about Low Cost LTE Devices. The objective of Sony regarding M2M is to integrate in most of their devices some sort of M2M communication technology in the near future. Moreover they want to use the same technology to cover all kind of devices from TVs, cameras, videogame consoles, etc. However this suppose a great challenge due to the wide range of requirements for each of the applications in terms of delay, power and data rates. The question made by the presenter was:
“Is there any technology that encompasses all the varying M2M requirements?”
Nowadays we have a large variety of wireless technologies that could be used such as, ZigBee WiFi, GPRS, LTE, etc.
According to Sony point of view the LTE should be the one. Without going into detail, the overall idea is to develop a LTE Low cost device (approx. 10$ per module) that could be easily integrated in most of the their products. Sony is not alone in the field of Low cost LTE device, in fact there is a on-going study in 3GPP since September 2011.
How to decrease the cost of LTE?
The main approaches are:
- Reduction of the bandwidth
- Hardware simplification
- Reduction of TX power
- Reduction of the peak rate
A 59% of cost reduction is expected from these simplifications.
However, the chip development of such Low cost LTE will not take place in the short-term, but in the year 2017.
One of the questions made in regards to this presentation was about using GSM/GPRS technology, which is currently available. According to Sony point of view, GSM may disappear and therefore the longevity of the solutions cannot be guaranteed.
In another post we will try to cover the one million dollar question: which technology will be available ten years or more from the current cellular networks GSM/GPRS, 3G(UMTS) or LTE?
The talks on the first day of the 3rd ETSI M2M workshop were interesting. Along the day there were four thematic speaker sessions. The program is available here.
The first thematic session was dedicated to the ETSI current standardization efforts, where the main highlights was the recently started initiative OneM2M partnership project (http://www.onem2m.org/), which the mission statement is:
“The purpose and goal of oneM2M is to develop technical specifications which address the need for a common M2M Service Layer that can be readily embedded within various hardware and software, and relied upon to connect the myriad of devices in the field with M2M application servers worldwide.”
The speaker and ETSI board member Joachim Koss emphasized that the current M2M ETSI standard will be an important part in the upcoming oneM2M standard. The first release of the oneM2M standard is expected to come within one year time.
The second thematic session was dedicated to the ETSI M2M standard and included talks from industry. The focus was put on the current ETSI M2M architecture, what are the contributions of ETSI for M2M security standards, how should the device abstraction and semantics be performed. From these talks, it was interesting to see how the classification of security threats is currently being done (Check the slides when they become available).
The third thematic session was dedicated to the experience that several companies had when implementing the ETSI M2M standard in their products. From this talk it was highlighted that when in M2M the term constrained device is mentioned, it means different things to different people and therefore a holistic characterization should be considered. There was also some discussion about if the gateways are still required when IP become native in all devices, where the conclusion that it is still required but not for protocol translation.
The fourth and last thematic session was dedicated to the M2M in the industry. The talks included the efforts to align the smart metering industry approach with standards requirements and national security demands. The talk about smart grid was focused on how to leverage security and privacy. Finally the last talk was about road traffic assistance and the challenges that need to be addressed in 3GPP networks to be able to meet the requirements. One interesting example of the road assistance is to inform the driver what should be their average speed so that they are able to get in the green wave (i.e., catch green semaphores in a long stretch of the road).
The organizers will release the slides to the public at the end of the event.
Two of our researchers (German and Nuno) are at the 3rd ETSI Workshop presenting a poster about our ongoing work in enhancing the capacity of GPRS and LTE in the Radio Access Network.
There are more than 220 participants attending the workshop.
German and Nuno will post a summary of the events in the workshop in the end of the day.
If you are around come and visit them in the poster section during the coffee breaks.