This tutorial describes the specific details of the LTE MAC layer or the Medium Access Control protocol. MAC is a radio network protocol which resides both in the UE and in the E-UTRAN. Also, it should be noted that MAC protocol is available for both User plane and also for the control plane. RRC (Radio Resource Control) protocol is in (more ..)
When the best data throughput of today becomes bad in couple of years and mobiles are used more as entertainment and file sharing purpose than voice call, we need new revolutions to achieve best data rate using existing technologies. According to latest study by Qualcomm by 2017 two third of mobile traffic will be from video. There is also predictions (more ..)
Apple announced iOS 8 early this week in a grand event. While there are many visual and other non-wireless features presented in WWDC 2014 there was definitely some parts which was for us those who work in mobile space. Apple announced that they will support WiFi calling in IOS 8 and that is a welcome move. But as we all (more ..)
GSM has over 90% market share, and is available in over 219 countries and territories. “GSM” is a trademark owned by the GSM Association. In 1981 Groupe Spécial Mobile was created to develop a European standard for digital cellular voice telephony. European Conference of Postal and Telecommunications Administrations (CEPT) had taken this initiative. In 1987 Europe produced the very first (more ..)
When LTE system was developed one of the big technical feature from UMTS Soft/Softer handover was missing from the architecture. There are many specific reasons why LTE dropped altogether soft handover (connect-before-break) from the system design. Before discussing about why LTE skipped soft handover and only implemented hard handover, let’s check the basic concept of soft/softer handover.
The term 3GPP specification covers all GSM (including GPRS and EDGE), W-CDMA (including HSPA) and LTE (including LTE-Advanced) specifications. Along with that network side terminology such as UTRAN, IMS, FOMA (in Japan) are also covered by 3GPP specifications. Each 3gpp specifications have their unique numbers. Though these numbers look complicated and unnecessary, they have their own significance. Assigning a unique (more ..)
Samsung, SONY, Qualcomm are already offering smartwatch and other wearable solutions. Then why there is little or none enthusiasm towards these products. Are these new and advanced watches have some basic problem which need to be addressed as soon as possible? In a time when all Smartphone manufacturers are jumping into smartwear business, it seems that there is no real (more ..)