Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2007-02-06
2007-02-06
Bocure, Tesfaldet (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
Reexamination Certificate
active
10391193
ABSTRACT:
The invention relates to a method for estimating power in a CDMA telecommunications system, in which method a sample set is formed (300) from the received signals. The proposed method reiterates (302to312) the following steps, until a predetermined ending condition is fulfilled: forming (302) an absolute value set from the absolute values of sample set elements, setting (304) a threshold value; calculating (306) a reference value by multiplying the mean of the absolute value set by the threshold value; comparing (308) the element of the absolute value set with the reference value and forming (312) a second sample set by deleting elements exceeding the reference value from the sample set; the ending condition being fulfilled, estimating (314) the power on the basis of the remaining sample set.
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“Median Filtering for Power Estimation in Mobile Communication Systems”, Tepedelenlioglu, 3rdIEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communication, Mar. 20-23, 2001, pp. 229-231, XP002240034.
Henttu Pertti
Saarnisaari Harri
Bocure Tesfaldet
Squire Sanders & Dempsey L.L.P.
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