Measuring Speed and Download times

Measuring Speed : There are two measures for the size of a file: bits (b) and bytes (B). Communication engineers think in terms of transferring bits, whereas computer users think in terms of file sizes, which are usually measured in Bytes (such as kilobytes, megabytes, etc). There are eight bits to one byte. The data rate determines how long it will take to transfer a file. The larger the file,...

Measuring speed throughput

UMTS QoS Architecture

3GPP TS 23.107 describes the QoS concept and architecture. In addition, it provides QoS parameters based on the UMTS bearer service. To ensure the QoS of a network, bearer services with explicit attributes and functions must be set up between the transmitter and the receiver. A bearer service involves all...

QoS Architecture UMTS

3G/UMTS complete MO-CS Call Setup flow

CS Call setup message flow. 1. System Information (BCCH)  The UE reads the System Information that is broadcast on BCCH. The information is not read continuously. It is only read if the information changes  2. RRC: RRC Connection Request (CCCH)  The Mobile user decides to initiate a voice...

3G/UMTS complete message flow Mobile Originate Call Setup

Non-Access Stratum (NAS)

The non-access stratum(NAS) includes the protocols outside the access stratum,i.e. the protocols not related to the transport of user data or network signaling. They concern all data and signaling messages exchanged between the UE and the CN independently on the radio access technology implemented within the...

NAS(Non-Access Stratum)

Introduction to QoS

Quality of Service (QoS) is possibly the single most important concept in the field of optimization for Packet Switched networks. The Circuit Switched networks also have a mechanism to manage the quality of the service, which is well known and well established a long time ago. The dimensioning of the number of available circuits or channels in a given network node or associated interface is done...

Introduction to QoS