发明公开
EP1603360A1 Velocity estimation apparatus in mobile communication environments 审中-公开
Funkkommunikationsumgebungen的Geschwindigkeitsschätzungsgerät

Velocity estimation apparatus in mobile communication environments
摘要:
Disclosed is a method for estimating the velocity of a mobile station in Rician fading environments in which a direct wave exists. Cellular mobile communication environments include two environments, Rician fading environments in which a direct wave exists and Rayleigh fading environments in which a direct wave does not exist. Generally, many methods for estimating the velocity of a mobile station have been known in Rayleigh fading environments. However, in Rician fading environments in which a direct wave exists, many errors occurs in estimating the velocity of a mobile station due to difficulty in estimation of a Rician coefficient K and an incident angle θ 0 . According to the invention, a method is provided, error is mostly eliminated in estimating the velocity of a mobile station by obtaining a maximum Doppler frequency of the mobile station, even without directly obtaining a Rician coefficient K and an incident angle θ 0 .
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