Performance of Multiflow Aggregation Scheme for HSDPA with Joint Intra-site Scheduling and in Presence of CQI Imperfections

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• 作者：Dmitry Petrov (1) dmitry.petrov@magister.fi
  Ilmari Repo (1) ilmari.repo@magister.fi
  Marko Lampinen (2) marko.lampinen@renesasmobile.com
• 关键词：HSDPA &#8211 ; SF ; DC &#8211 ; 3GPP &#8211 ; multiflow &#8211 ; scheduling &#8211 ; CQI
• 刊名：Lecture Notes in Computer Science
• 出版年：2012
• 出版时间：2012
• 年：2012
• 卷：7469
• 期：1
• 页码：198-207
• 全文大小：221.9 KB
• 参考文献：1. Global mobile Suppliers Association (GSA), GSM/3G Market/Technology Update (February 7, 2012), http://www.gsacom.com/downloads/pdf/mobile_broadband_fact_sheet_070212.php4
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  7. Petrov, D., Repo, I., Lampinen, M.: Overview of Single Frequency Multipoint Transmission Concepts for HSDPA and Performance Evaluation of Intra-site Multiflow Aggregation Scheme. In: Proc. of IEEE VTC, Yokohama, Japan (May 2012)
  8. System Performance Evaluation of SF-DC Inter-NodeB aggregation with Type 3 and Type 3i receivers in Pedestrian A channel, 3GPP contribution R1-112303 (August 2011)
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• 作者单位：1. Magister Solutions Ltd., Jyvaskyla, Finland2. Renesas Mobile Europe, Oulu, Finland
• ISSN：1611-3349

文摘

Lately several Single Frequency Dual Cell (SF-DC) techniques for High Speed Downlink Packet Access (HSDPA) were considered in the Third Generation Partnership Project (3GPP), which were aimed to enhance network performance for users at the cell edges. In this paper we are concentrating on intra-site multiflow aggregation scheme, where User Equipment (UE) can receive two independent transmissions from separate sectors. Furthermore, this paper focuses on the impact of Channel Quality Indicator (CQI) reporting interval and measurement imperfections on the system performance. Moreover, we present a joint scheduling algorithm, which selects users site-wide instead of independently in each sector. Simulation results for scenarios mentioned above are presented and analysed in the paper. This study shows that joint scheduling gives some extra gain compared to independent scheduling. In addition, impact of CQI errors and CQI update period are studied.