Thursday, 27 December 2012

Small Cells 'Terminology' and 'Comparison'


Here is AT&T's attempt in comparing the small cells. The above comparison is probably based on the assumption that LTE Small cells are not yet widely available. Once they are, then LTE can be put in for most columns in the Technology part.

See also:



Tuesday, 25 December 2012

Future mobile technology with Graphene



Some days back I attended an interesting talk where the speaker showed how Graphene will revolutionise the future mobile devices. Here is what Graphene is:



Another version:



A concept phone video from Samsung



And a Nokia demo from the last MWC that uses Graphene as a sensor and also opens the possibility of using other gestures except for touch

Saturday, 22 December 2012

Data v/s Signalling Traffic in Dongles and Phones

From a presentation by Peter Zidar in the Small Cells Global Congress 2012.

The above picture shows that even though the amount data traffic carried by dongles is much more than the amount of traffic carried by the mobile phones, the amount of signalling is far higher from the mobiles than that of dongles. This is mainly because the mobiles need to conserve the battery power and for this reason they disconnect from the network as soon as there is no need for exchange of data. Remember the Fast Dormancy issue in the smartphones? If not see this post.

Related posts:


Thursday, 20 December 2012

IMS Whitepapers from Spirent



Couple of old but interesting whitepapers from Spirent available, in case you are interesting in IMS. Available to download from here (registration required)

Related blog posts:



Saturday, 15 December 2012

Spectrum auction results from The Netherlands



The result of the auction: 

8009001800210019002600
KPN2x102x102x202x5
 30
Vodafone2x102x102x202x5

T-Mobile
2x152x30
4,9+9,7 25
 Tele22x10




The total price of the auction:
  • Vodafone 1,380,800,000 euro (1.381 billion)
  • KPN 1,351,852,000 euros (1.352 billion)
  • T-Mobile 910,681,000 euro (910.8 million)
  • Tele2 euro 160,813,000 (160.8 million)
After the auction is the distribution of the main bands is as follows:
 800900 no  900 new 1800 no 1800 new 2100 no 2100 new 2600
 KPN2x10  2x12,4 2x10 2x18,4 2x20 2x15 2x20 2x10
 Vodafone2x10 2x12,4 2x10 2x4,8 2x20 2x15 2x20 2x10
 T-Mobile 2x10 2x15 2x30,6 2x30 2x20 2x20 2x5
 Tele22x10 - - - - - - 2x20
 TO - - - - - 2x20

Sources:

LTE Rollouts planned:
Vodafone - Summer 2013
KPN - February 2013

Added 15/12/12:11.48

You can also see it visually as in the slide below:




Thursday, 13 December 2012

Half Duplex Operation (HD-FDD) in LTE



It was interesting to hear the other day that there is an option for HD-FDD but it is still undergoing investigation and not standardised yet. From what I hear, operators are showing an interest and we may see it coming to an operator near us in the next couple of years.

Complete presentation below:



The advantages are obvious but probably the only reason this was not standardised actively is probably because then peak rates often quoted when promoting technology will be halved. The economy of scale is also important and we may not see this becoming popular unless many operators decide together to push for this.

Other posts of interest: