By Ralf Kreher
UMTS functionality size is a pragmatic advisor that explains how one can establish and degree the most difficulties noticeable in modern-day UMTS reside networks and should make functionality size effects accrued within the UTRAN surroundings comprehensible for the reader. It presents a primary history for day-by-day paintings within the box or lab, protecting quite a lot of functionality measurements that support to troubleshoot and optimize the UTRAN atmosphere. The content material is going some distance past what has been outlined by means of foreign average our bodies like 3GPP and closes the distance among foreign criteria and definitions of community gear brands (NEM) and community operators. The emphasis is on definition of Key functionality signs (KPIs) and measurements that aren't defined in 3GPP usual files, resembling throughput measurements and the success/failure research of all attainable handover forms. * comprises transparent insurance of the basics of functionality dimension software program structure and how one can gather and current statistical info * includes a variety of name circulation diagrams, conversion tables, protocol message examples and pattern size effects that may be used as reference for day-by-day paintings within the box or lab * Explains size boundaries and the way tolerances offer necessary info for validation and overview of size effects * presents an summary of the way functionality dimension software program works in addition to info on how facts streams are captured and analyzed, and the way research effects are aggregated and provided in image person interfaces and studies supplying a gateway into the realm of UMTS-specificmeasurement situations and a common evaluate of what might be outlined and measured at an in-depth technical point, this booklet will entice these inquisitive about community operation, making plans, configuration and deployment, in addition to consulting and coaching businesses, scholars, technical newshounds and dimension gear brands.
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Additional resources for UMTS Performance Measurement: A Practical Guide to KPIs for the UTRAN Environment
If no softer or soft handover or transport channel type switching is performed this situation remains unchanged until the end of the call. 28 shows an example for the transport of an RRC measurement report message sent by UE to SRNC. The contents determine the length of the message. 28 Protocol versions and releases by 3GPP RLC reassembly – UE in CELL_DCH, one radio link in active set Basics of Performance Measurement in UMTS Terrestrial Radio Access Network (UTRAN) 41 total length of the RRC message how many RLC transport blocks are necessary to transport the whole RRC message.
5 metres (above ground level). Both endpoints of the radio connection are located in a city centre environment. Now using the same UE in the same cell under the same conditions we set up two connections. 2 kbps AMR speech call while connection #2 is a 144 kbps data call. How does the type of service (expressed as data transmission speed ¼ throughput) influence the maximum cell range (d)? 12 Cell range (d) vs. 12). To put it in a nutshell, UE needs to be closer to the cell antenna to guarantee a higher data transmission rate.
Dedicated resources (spreading codes, scrambling codes) are assigned by the SRNC and hence, dedicated physical channels are established on the radio interface. 17. RRC signalling may include exchange of NAS messages between the UE and SGSN. The spreading factor of the radio bearer depends on the expected uplink/downlink IP throughput. The maximum expected data transfer rate can be found in the RANAP RAB Assignment Request message that triggers the set up of the radio bearer and Iu bearer. The Iu bearer is a GTP tunnel for transmission of IP payload on the IuPS interface between SRNC and SGSN.
UMTS Performance Measurement: A Practical Guide to KPIs for the UTRAN Environment by Ralf Kreher