The LTE/EPC architecture is driven by the goal to optimize the system for packet data transfer. Remember that There are no circuit switched components in LTE/EPC. There is a new approach in the inter-connection between radio access network and core network. The EPS architecture is made up of an EPC (Packet Core Network, also referred … Read more
Research conducted by Bitdefender claims that almost one in five Apple iPhone apps can access a user’s Address Book, while some 41 percent can track the users location and more than a thirds also store user data without encrypting it. The study of more than 65,000 apps distributed widely on the Apple App Store revealed … Read more
Satellite phone operator, Thuraya has launched its roaming service in the USA after signing a deal with T-Mobile USA. The service allows Thuraya subscribers to roam with their Thuraya mobile numbers into the T-Mobile network. The Company’s GmPRS roaming service will be enabled afterwards on the T-Mobile network. Mr. Tarek Shqairat, Director of Inter-Carrier Relations, … Read more
Different Categories of UE in LTE Categories of UE in LTE is divided by its function which is as per below. Functionality: eNB obtains the UE radio capabilities via: • The S1AP initial setup request message • The X2AP in case of handover • The RRC in any other cases eNB sends the UE radio … Read more
Higher data rates: Obviously this is a general requirement requested from any new system. Quality of service, Lower delay: To enable true convergence between real-time and non-real-time services quality of service awareness is of absolute importance. This must already be paid attention to during the design of the physical layer. So LTE/EPC will be QoS … Read more
Fully packet-oriented mobile broadband network providing: – Peak data rates of 100 Mbps (DL) and 50 Mbps (UL) – Very low latency – Seamless and lossless handover – Sophisticated QoS to support important real time applications such as voice, video and interactive gaming – Support for terminal speeds of 150-500 Km/h and cell ranges of … Read more
3G is new upgraded cdma technology, in simple word its Wide band Code Devision Multiple Access Technology (WCDMA). This is first technology in which video call possible means voice and data simultaneously transmitted and received between mobile or data card and BTS – Base Transmission Station. WCDMA Having Below Characterictics Support two basic modes: FDD and … Read more
Naturally, the first application for which a wireless alternative was developed and deployed was voice telephony. These systems, called wireless local-loop (WLL), were quite successful in developing countries such as China, India, Indonesia, Brazil, and Russia, whose high demand for basic telephone services could not be served using existing infrastructure. In fact, WLL systems based … Read more
Interference is dependent on time, frequency and mobile location. Without frequency hopping, some cell planning margins must be incorporated so that sufficient service quality can still be provided in an interfered situation. By changing frequency on every TDMA frame, a mobile only experiences interference on a particular frequency once in a number of hops. Similarly, … Read more
ABI Research’s latest forecasts for femtocells estimate largely flat volume shipments in 2012 relative to 2011. The shipments in 2012 are expected to contain 2.44 million units, similar to the 2.47 million units shipped in 2011. In total, ABI Research estimates 5.3 million units will be deployed by end 2012. “We believe there is a … Read more