Apple iPhone 5 will not support all LTE networks in Europe, Asia and other parts of the world. iPhone 5 comes with many good but there are some bad news came with the most awaited product of 2012. Apart from maps (At least there is one working version), iPhone won’t support all the LTE frequencies in Europe market. Apple iPhone (more ..)
There are many way to waste UE battery power but there are some ways to save this rare and useful resource. Fast Dormancy is one of these. Fast dormancy was introduced in 3GPP release 8 of the specifications after that it was a huge hit among all the smart phone manufacturers. The basic principle behind Fast Dormancy is quite simple (more ..)
Mobile communications have seen a lot of innovation in recent times and there is still much more to come. We have moved from the GSM circuit switched voice system to complex services employing the Internet Protocol as the communications substrate. Mobile communications standards such as HSPA Advance and LTE have become jargon when talking about the 4G mobile networks. However, (more ..)
The history of mobile communication is long and an interesting one. Started back in 1950s the wireless technology evolved with time and requirements. The biggest technology breakthrough came as GSM (Global System for Mobile Communications, originally Groupe Spécial Mobile). GSM was basically developed for voice based communication and it was a near-perfect system for that purpose. But when data communication (more ..)
While going through latest changes in 3GPP I found out that this new feature “Non-Voice Emergency Services”. It is potentially a big and important feature in next generation mobile networks which are mostly IP driven. So what is Non-Voice Emergency Services? Traditionally all the emergency services were over voice (CS) interface, but instead it is better to have a alternative (more ..)
The principles of PLMN selection in [amazon_link id=”012385489X” target=”_blank” ]E-UTRA[/amazon_link] are based on the 3GPP PLMN selection principles. Cell selection is required on transition from EMM_DETACHED to EMM-REGISTERED and from ECM-IDLE or ECM-CONNECTED. Cell selection The UE NAS layer identifies a selected PLMN and equivalent PLMNs The NAS can control the RAT(s) in which the cell selection should be performed, (more ..)
The LTE frequency bands in 3GPP standards are divided into paired bands and unpaired bands. Some of the bands are presently used by other technologies and LTE can coexist with the legacy technologies. In the best case in Europe there is over 600MHz of spectrum available for the mobile operators when including the 800, 900, 1800, 2100 and 2600MHz Frequency (more ..)