Link QualityControl (LQC) i GPRS/EGPRS
Independent thesis Basic level (professional degree)Student thesis
This master thesis has been done at Enea Epact AB. The purpose of this thesis is to develop and implement a Link Quality Control algorithm for GPRS/EPGRS in the current testing tool. A Link Quality Control (LQC) shall take quality values from mobile stations and base stations and decide a codingsscheme that opimizes the throughput of data.
The Advantage with LQC is that it adapts the used coding scheme to the channel quality. If the channel quality is too bad for the used coding scheme, a slower coding scheme with more redundancy should be selected. On the other hand, if the channel quality is too good for the used coding scheme, LQC should recommend a faster coding scheme with less redundancy.
The testing tool is now using a static coding schme that doesn’t change during a data session. An LQC is therefore necessary for better simulation of the traffic and to make the tests more real.
Place, publisher, year, edition, pages
Institutionen för systemteknik , 2003. , 37 p.
Datorteknik, LQC, GSM, GPRS, EDGE, Incremental redundancy, Link Adaptation
IdentifiersURN: urn:nbn:se:liu:diva-1761OAI: oai:DiVA.org:liu-1761DiVA: diva2:19087