Achieving higher HSDPA performance and preserving R99 soft handover control by large scale optimization in CPICH coverage planning
2009 (English)In: Proceedings of IEEE Wireless Telecommunications Symposium (WTS) 2009, Piscataway, NJ, USA: IEEE , 2009, 39-44 p.Conference paper (Refereed)
Common Pilot Channel (CPICH) power is a crucial parameter in coverage planning of todays UMTS networks that implement both HSDPA and R99 services. Adopting a non-uniform allocation of cell CPICH power and minimizing its amount necessary for coverage, the resulting power saving significantly improves HSDPA performance. At the same time, it is vital to have the desired level R99 soft handover which is heavily influenced by CPICH. In this paper, we demonstrate how large scale optimization can deal with both tasks. Our approach focuses on enhancing cell-edge HSDPA data rate, subject to requirements of CPICH coverage and the level of R99 soft(-er) handover We present a solution algorithm that optimizes CPICH allocation for HSDPA performance, and, in parallel, offers accurate control of R99 soft handover Experimental results for large and realistic network planning scenarios demonstrate the benefit of our optimization approach.
Place, publisher, year, edition, pages
Piscataway, NJ, USA: IEEE , 2009. 39-44 p.
, Wireless Telecommunications Symposium, ISSN 1934-5070
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-20613DOI: 10.1109/WTS.2009.5068936ISI: 000269148700012ISBN: 978-1-4244-2588-4 (print)ISBN: 978-1-4244-2589-1 (e-ISBN)OAI: oai:DiVA.org:liu-20613DiVA: diva2:235554
Wireless Telecommunications Symposium, Prague, Czech Republic, 22-24 April 2009