Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part
Reexamination Certificate
2007-01-30
2007-01-30
Urban, Edward F. (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Having measuring, testing, or monitoring of system or part
C375S148000, C375S267000, C375S347000
Reexamination Certificate
active
10328569
ABSTRACT:
The invention relates to a method of estimating a downlink channel in a radio system, and user equipment in a radio system. The user equipment is configured to form an impulse response for a common pilot channel transmitted with a wide antenna beam and an impulse response for a beam-specific pilot signal transmitted with a directional narrow antenna beam. The user equipment is further configured to calculate the impulse response of the downlink channel by using the impulse response of the common pilot channel and the impulse response of the beam-specific pilot signal, taking into account the phase difference formed.
REFERENCES:
patent: 5953325 (1999-09-01), Willars
patent: 6108565 (2000-08-01), Scherzer
patent: 6411186 (2002-06-01), Lilleberg et al.
patent: 6411649 (2002-06-01), Arslan et al.
patent: 6792036 (2004-09-01), Doetsch et al.
patent: 2001/0043642 (2001-11-01), Hirata
patent: 2003/0086508 (2003-05-01), Magee
patent: 001065800 (1999-07-01), None
patent: 1 065 800 (2001-01-01), None
patent: WO 98/59512 (1998-12-01), None
patent: WO 02/089358 (2002-11-01), None
Korhonen, J, “Introduction to 3G Mobile Communications”, Artech House, 2001.
Masafumi Usuda; Yoshihiro Isikawa; and Seizo Onoe, “Optimizing the Number of Dedicated Pilot Symbols for Foward Link W-CDMA Systems,” IEEE 51stVehicular Technology Conference Proceedings, Tokyo, Japan, May 15-18, 2000; IEEE 51stVehicular Technology Conference, New York, May 15, 2000 (pp. 2118-2122).
3GPP TS 25.211 V3.7.0 (2001-2006), “3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Physical channels and mapping of transport channels onto physical channels (FDD),” Release 1999.
Haroon Adeel
Hollingsworth & Funk LLC
Nokia Corporation
Urban Edward F.
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