Sökning: "mobiltelefonisystem"

Hittade 2 uppsatser innehållade ordet mobiltelefonisystem.

1. 1. Identification and Analysis of Market Indicators : a predictive tool for anticipating future demand fluctuations on the telecom mobile network equipment market

   Magister-uppsats, Ekonomiska institutionen

   Författare :Rutger Lind; Johan Törnblad; [2002]
   Nyckelord :Business and economics; telecom sector; leading indicators; forecasting; anticipation; mobile network equipment; subcontractor; network supplier; Ekonomi;

   Sammanfattning : Background: Forecasting is an instrument that the managers rely upon for their anticipations of the future. Subcontractors control their operations according to the forecast volumes provided by the telecom mobile network equipment suppliers. The information in the forecasts is however not sufficient. LÄS MER

3. 2. Utvärdering av en beslutsåterkopplad kanalestimator för tredje generationens mobiltelefonisystem

   Magister-uppsats, Blekinge Tekniska Högskola/Institutionen för telekommunikation och signalbehandling

   Författare :Ronnie Gustafsson; Didier Kongolo; [1999]
   Nyckelord :M.Sc.EE; master; thesis; magisterexamen; magister examen; W-CDMA; WCDMA; CDMA; UMTS; IMT-2000; telefonsystem; mobiltelefoni; channel estimation; kanalestimering; kanal; estimering; decision directed; beslutsåterkopplad;

   Sammanfattning : This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. LÄS MER