Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-04-18
2006-04-18
Kuntz, Curtis (Department: 2643)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S436000, C455S439000, C455S443000, C455S437000
Reexamination Certificate
active
07031712
ABSTRACT:
In case of making site selection diversity transmit power control, all handover base stations are enabled for transmission depending on a state of the transmission power value of a dedicated data signal from the base stations, thereby preventing a trafic capacity from decreasing due to an increase in the transmission power of a dedicated control signal at a non-transmitting base station, or a received signal quality from degrading at a mobile station because the transmission power value of the transmitting base station reaches a maximum transmission power of base station. A mobile station measures a common pilot signal and a dedicated control signal transmitted from each handover base station by means of a receiving monitor, estimates the transmission power value of the dedicated control signal at each handover base station from a difference thereof, and estimates a difference in the transmission power value of the dedicated control signal between the handover base stations. In the case where this difference is greater than or equal to a predetermined threshold value, a transmitting base station designating section designates all of the handover base stations to be enabled for transmission.
REFERENCES:
patent: 5268933 (1993-12-01), Averbuch
patent: 5854785 (1998-12-01), Willey
patent: 5926470 (1999-07-01), Tiedemann, Jr.
patent: 6173162 (2001-01-01), Dahlman et al.
patent: 6256501 (2001-07-01), Tokuyama et al.
patent: 6434367 (2002-08-01), Kumar et al.
patent: 6487191 (2002-11-01), Kang et al.
patent: 6628957 (2003-09-01), Weaver et al.
patent: 6667961 (2003-12-01), Park et al.
patent: 6725043 (2004-04-01), Bonta et al.
patent: 11-69416 (1999-03-01), None
patent: WO 99/13675 (1999-03-01), None
3G TS 25.214 v3.2.0 (Mar. 2000),.3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Physical layer procedure (FDD), Release 1999, pp. 19 5.2.1.4.
“Universal Mobile Telecommunications System (UMTS); Physical layer procedures (FDD); (3G TS 25.214 version 3.2.0 Release 1999); ETSI TS 125 214”; ETSI Standards, European Telecommunications Standards Institute, Sophia-Antipo, FR, vol. 3-R1, No. V320, Mar. 2000; chapter 5.2.1.4.
Hamabe K et al.: “Forward-link Power Control Utilizing Neighboring-cell Pilot Power for DS-CDMA Cellular Systems”; Vehicular Technology Conference, 1997, IEEE 47thPhoenix, AZ, USA May 4-7, 1997, New York, NY, USA, IEEE, US, May 4, 1997, pp. 939-943, section II.
Hamabe Kojiro
Takano Nahoko
Kuntz Curtis
NEC Corporation
Pham Tuan
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