Thursday, 29 March 2012
Wednesday, 28 March 2012
Platinum Band: Sub 1GHz Frequency Band
Was listening to the Softbank webcast earlier about why they are so happy on receiving the 900MHz spectrum. The extract from slidepack summarises the advantages on this 'Platinum Band'
Tuesday, 27 March 2012
LTE/LTE-A SON (for Femtocells)
A Video presentation of the above is embedded below:
PDF of the above presentation is available here.
Monday, 26 March 2012
3GPP LTE Evolved Packet System & Application to Femtos
A video of the actual presentation is embedded below. Its quite long (94 minutes)
The presentation is available to download in PDF format from here.
The presentation is available to download in PDF format from here.
Sunday, 25 March 2012
Saturday, 24 March 2012
Friday, 23 March 2012
Thursday, 22 March 2012
UICC and ISIM (IMS SIM)
I have mentioned before that UICC is the physical card and 2G SIM/USIM/ISIM are applications on the UICC card. The IMS SIM holds data provided by the IMS Operator, generally the same operator that would provide USIM services that would allow to camp on the 3G or LTE network.
Private User Identity: This identifies the user uniquely with the IMS operator and is used when the user registers with the IMS network. This is used by the operator to check the subscription and which services the user can avail of.
Public User Identity: A user can have multiple public identities that can be used for different services. To avail a particular service, user has to register with the particular public identity that has been allowed for that service.
Security Keys: Security keys are used for authentication to the IMS Network.
Home Network Domain Name: This is the name of the entry point that the user uses to register. This makes sure that a users request is sent to the Home Network.
Access Rule Reference: This is used to store information about which personal identification number needs verification for accessing a particular application
Address of P-CSCF: If it is not possible do dynamically find the Proxy-Call Session Control Function then this address is helpful
Administrative Data: Some of this could be operator specific proprietary information
Monday, 19 March 2012
Vuforia™: Qualcomm's Augmented Reality (AR) Platform
As I mentioned yesterday, while some people think that Augmented Reality is losing its charm, Qualcomm certainly thinks that things are looking up for AR and it can only get better. They have branded their AR platform as Vuforia. A recent presentation from Cambridge Wireless event is embedded below:
There are some interesting video's on Augmented Reality using the Vuforia platform on Youtube. Some of them as follows:
All presentations from the CW event are available here.
There are some interesting video's on Augmented Reality using the Vuforia platform on Youtube. Some of them as follows:
All presentations from the CW event are available here.
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