Channel Quality Indication (CQI) Application in HSDPA Simulation

摘要：

CQI is the key indicator for HSDPA downlink channel quality. UE reports CQI and HARQ-ACK feedback info to Node-B through uplink channel HS-DPCCH. UE estimates the CQI value through an iterative algorithm taking the measurements of HS-PDSCH_SIR and CPICH_Ec/No into account. Besides this the UE probes with varying parameter values for TB size, modulation type, a reference power setting for HS-PDSCH and an possible power adjustment value to obtain a CQI value. This paper gives the methods how to determine SIR of PDSCH channel, received HS-PDSCH power, the Measurement Power Offset etc. This is very important for every HSDPA sub-frame in HSDPA simulations.

关键词： CQI HSDPA simulation WCDMA

作者: QUN HOU DEXIU HUANG

作者单位: Dept. of Optical & Elec. Eng.HUST WUHAN, HUBEI, CHINA

会议类型: 国际会议

会议名称: 第三届IEEE无线通讯、网络技术暨移动计算国际会议

会议地点: 上海

会议语种:英文

在线出版日期: 2007-09-21（万方平台首次上网日期，不代表论文的发表时间）