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Showing posts with label ProSe. Show all posts
Showing posts with label ProSe. Show all posts

Tuesday, 9 September 2014

LTE Device-to-device (D2D) Use Cases

Device-to-device is a popular topic. I wrote a post, back in March on LTE-Radar (another name) which has already had 10K+ views. Another post in Jan, last year has had over 13K views. In the LTE World Summit, Thomas Henze from Deutsche Telekom AG presented some use cases of 'proximity services via LTE device broadcast'


While there are some interesting use cases in his presentation (embedded below), I am not sure that they will necessarily achieve success overnight. While it would be great to have a standardised solution for applications that rely on proximity services, the apps have already come up with their own solutions in the meantime.

Image iTunes

The dating app Tinder, for example, finds a date near where you are. It relies on GPS and I agree that some people would say that GPS consumes more power but its already available today.



Another example is "Nearby Friends" from Facebook that allows to find your friends if they are nearby, perfect for a day when you have nothing better to do.

With an App, I can be sure that my location is being shared only for one App. With a standardised solution, all my Apps have info about location that I may not necessarily want. There are pros and cons, not sure which will win here.

Anyway, the complete presentation is embedded below:



For anyone interested in going a bit more in detail about D2D, please check this excellent article by Dr. Alastair Bryon, titled "Opportunities and threats from LTE Device-to-Device (D2D) communication"

Do let me know what you think about the use cases.

Tuesday, 4 March 2014

LTE Radar - LTE proximity services

Last year, DT gave an interesting presentation on what they termed as 'LTE Radar'. Here is the video to explain the motivation:


The picture below summarises how this will work:


It is interesting to note that these problems are already being solved using Apps and other technologies. Once the 3GPP standard is finalised, it would be a challenge to get this to mass adoption. An example would be Bluetooth based Beacons that I blogged about earlier here. Nevertheless, it would be interesting to see how compelling the use cases would be once this is standardised. The complete DT presentation is embedded below:



Thursday, 16 January 2014

3GPP Rel-12 and Future Security Work


Here is the 3GPP presentation from the 9th ETSI Security workshop. Quite a few bits on IMS and IMS Services and also good to see new Authentication algorithm TUAK as an alternative to the widely used Milenage algorithm.



Friday, 7 June 2013

3GPP Public Safety focus in Rel-12


Public Safety is still a hot topic in the standards discussion and on this blog as well. Two recent posts containing presentations have been viewed and downloaded like hotcakes. See here and here.

3GPP presented on this topic in the Critical Communications World that took place last month. The following is from the 3GPP press release:

The ’Critical Communications World’ conference, held recently in Paris, has focused largely on the case for LTE standardized equipment to bring broadband access to professional users, by meeting their high demands for reliability and resilience.
Balazs Bertenyi, the 3GPP SA Chair, reported on the latest status of the first 3GPP features for public safety, in particular those covering Proximity services (Direct mode) and Group call. He spoke of the need to strike a balance between more or less customisation, to make use of commercial products while meeting the specific requirements for Public Protection and Disaster Relief (PPDR).
To ensure that these needs are met, Balazs Bertenyi called for the wholehearted participation of the critical communications community in 3GPP groups, by sending the right people to address the technical questions and obstacles that arise during the creation of work items.

A presentation and video from that event is embedded below:




For more details see here.

Thursday, 31 January 2013

Tuesday, 6 December 2011

Proximity-based Services (ProSe) - New Study Item in 3GPP Rel-12


There is a new Rel-12 WI "Study on Proximity-based Services" with Qualcomm being the main proponent of this. This was earlier known as D2D (Device-to-device). From the 3GPP SP-110638:

Justification: Proximity-based applications and services represent a recent and enormous socio-technological trend. The principle of these applications is to discover instances of the applications running in devices that are within proximity of each other, and ultimately also exchange application-related data. In parallel, there is interest in proximity-based discovery and communications in the public safety community.


Current 3GPP specification are only partially suited for such needs, since all such traffic and signalling would have to be routed in the network, thus impacting their performance and adding un-necessary load in the network. These current limitations are also an obstacle to the creation of even more advanced proximity-based applications.


In this context, 3GPP technology, has the opportunity to become the platform of choice to enable proximity-based discovery and communication between devices, and promote a vast array of future and more advanced proximity-based applications.


Objective: The objective is to study use cases and identify potential requirements for an operator network controlled discovery and communications between devices that are in proximity, under continuous network control, and are under a 3GPP network coverage, for:
1. Commercial/social use
2. Network offloading
3. Public Safety
4. Integration of current infrastructure services, to assure the consistency of the user experience including reachability and mobility aspects
Additionally, the study item will study use cases and identify potential requirements for
5. Public Safety, in case of absence of EUTRAN coverage (subject to regional regulation and operator policy, and limited to specific public-safety designated frequency bands and terminals)


Use cases and service requirements will be studied including network operator control, authentication, authorization, accounting and regulatory aspects.


The study does not apply to GERAN or UTRAN.

In the past I have mentioned about Qualcomm's proprietary Flashlinq technology that seems to contain lots of similarities. There is also this AllJoyn technology that Qualcomm has been showing off since MWC. Here is a video of that:



There is a lot of potential of this proximity marketing technology mostly for marketing purposes and games. In the end it would depend of the Apps, services and charging based around this. There is also a big possibility for TV and VoD services where you start watching something on your device but then transfer it onto a TV or just a bigger screen.