Base station synchronization

Pulse or digital communications – Synchronizers – Network synchronizing more than two stations

Reexamination Certificate

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Reexamination Certificate

active

07924961

ABSTRACT:
A method, implemented in a user equipment (UE), of maintaining base station synchronization, comprises receiving a measurement message from a radio network controller (RNC) directing the UE to measure a time difference of arrival (TDOA) between signals transmitted from a first and second base station. The UE receives a transmission from the first and second base stations and measures the TDOA of the transmission from the first and second base station. The UE transmits the measurement of the TDOA of the transmission from the first base station to the first base station, and the measurement of the TDOA of the transmission from the second base station to the second base station.

REFERENCES:
patent: 5313457 (1994-05-01), Hostetter et al.
patent: 5404575 (1995-04-01), Lehto
patent: 5448570 (1995-09-01), Toda et al.
patent: 5784368 (1998-07-01), Weigand et al.
patent: 5793772 (1998-08-01), Burke et al.
patent: 5809426 (1998-09-01), Radojevic et al.
patent: 5822689 (1998-10-01), Hwang
patent: 5828659 (1998-10-01), Teder et al.
patent: 5881055 (1999-03-01), Kondo
patent: 5881100 (1999-03-01), Durrant et al.
patent: 5910948 (1999-06-01), Shou et al.
patent: 6014376 (2000-01-01), Abreu et al.
patent: 6038250 (2000-03-01), Shou et al.
patent: 6097709 (2000-08-01), Kuwabara
patent: 6131030 (2000-10-01), Schon et al.
patent: 6208871 (2001-03-01), Hall et al.
patent: 6223037 (2001-04-01), Parkkila
patent: 6230018 (2001-05-01), Watters et al.
patent: 6246673 (2001-06-01), Tiedemann et al.
patent: 6363060 (2002-03-01), Sarkar
patent: 6480483 (2002-11-01), Yahata et al.
patent: 6480558 (2002-11-01), Ottosson et al.
patent: 6493380 (2002-12-01), Wu et al.
patent: 6504830 (2003-01-01), Ostberg et al.
patent: 6539004 (2003-03-01), Sawyer
patent: 6590881 (2003-07-01), Wallace et al.
patent: 6597914 (2003-07-01), Silventoinen et al.
patent: 6728297 (2004-04-01), Rudolf
patent: 6882727 (2005-04-01), Vialen et al.
patent: 6954485 (2005-10-01), Hashimoto et al.
patent: 7047011 (2006-05-01), Wikman
patent: 2002/0014039 (2002-02-01), Merlet
patent: 2002/0075978 (2002-06-01), Dick et al.
patent: 2003/0203745 (2003-10-01), Chiang et al.
patent: 0 825 737 (1998-02-01), None
patent: 0 838 910 (1998-04-01), None
patent: 0852430 (1998-07-01), None
patent: 0954122 (1999-11-01), None
patent: 10-304437 (1994-05-01), None
patent: 08-163002 (1996-06-01), None
patent: 10-246769 (1998-09-01), None
patent: 11-196460 (1999-07-01), None
patent: 378440 (2000-01-01), None
patent: 387186 (2000-04-01), None
patent: 391101 (2000-05-01), None
patent: 421941 (2001-02-01), None
patent: 94/28643 (1994-12-01), None
patent: 99/00912 (1999-01-01), None
patent: 99/16183 (1999-04-01), None
patent: 99/19992 (1999-04-01), None
patent: 99/30519 (1999-06-01), None
patent: 99/43099 (1999-08-01), None
patent: 99/44306 (1999-09-01), None
patent: 99/66754 (1999-12-01), None
patent: 00/04661 (2000-01-01), None
patent: 00/14907 (2000-03-01), None
patent: 00/31998 (2000-06-01), None
patent: 00/44117 (2000-07-01), None
patent: 01/01596 (2001-01-01), None
patent: 01/10160 (2001-02-01), None
patent: 01/41482 (2001-06-01), None
patent: 02/058334 (2002-07-01), None
3GPP, “Universal Mobile Telecommunications System (UMTS); UE Procedures in Idle Mode and Procedures for Cell Reselection in Connected Mode,” 3GPP TS 25.304 V3.5.0 (Release 1999) (Dec. 2000).
3GPP, “Universal Mobile Telecommunications System (UMTS); UE Procedures in Idle Mode and Procedures for Cell Reselection in Connected Mode,” 3GPP TS 25.304 V3.2.0 (Release 1999) (Mar. 2000).
3GPP, “Universal Mobile Telecommunications System (UMTS); UE Procedures in Idle Mode and Procedures for Cell Reselection in Connected Mode,” 3GPP TS 25.304 V3.6.0 (Release 1999) (Mar. 2001).
3GPP, “3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Physical channels and mapping of transport channels onto physical channels (FDD) (Release 1999),” 3GPP TS 25.211 V3.1.0), (Dec. 1999).
3GPP, “3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Spreading and modulation (FDD) (Release 1999),” 3GPP TS 25.213 V3.4.0 (Dec. 2000).
3GPP, “3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Physical channels and mapping of transport channels onto physical channels (FDD) (Release 1999),” 3GPP TS 25.211 V3.2.0), (Mar. 2000).
3GPP, “3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Physical channels and mapping of transport channels onto physical channels (FDD) (Release 1999),” 3GPP TS 25.211 V3.5.0), (Dec. 2000).
3GPP, “3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Spreading and modulation (FDD) (Release 1999),” 3GPP TS 25.213 V3.2.0 (Mar. 2000).
3GPP, “3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Spreading and modulation (FDD) (Release 1999),” 3GPP TS 25.213 V3.5.0 (Apr. 2001).
3GPP, “Third Generation Partnership Project; Technical Specification Group Radio Access Network; Synchronisation in UTRAN Stage 2 (Release 99),” 3G TS 25.402 V3.1.0, (Mar. 2000).
3GPP, “Third Generation Partnership Project; Technical Specification Group Radio Access Network; Synchronisation in UTRAN Stage 2 (Release 99),” 3G TS 25.402 V3.4.0, (Dec. 2000).
3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Physical channels and mapping of transport channels onto physical channels (FDD) (Release 4); 3G TS 25.211 V4.1.0 (Jun. 2001).
3rdGeneration Partnership Project; Technical Specification Group Radio Access Network; Spreading and modulation (FDD) (Release 4); 3G TS 25.213 V4.1.0 (Jun. 2001).
Higuchi et al., “Experimental Evaluation of 3-Step Cell Search Method in W-CDMA Mobile Radio,” VTC 2000 IEEE, 0-7803-5718-3, pp. 303-307.
Nielsen et al., “WCDMA Initial Cell Search”, VTC 2000-Fall, IEEE VTS 52nd, Vehicular Technology Conference, vol. 1 of 6, Conf. 52, pp. 377-383, (Sep. 2000).
Nystrom et al., “Comparison of Cell Search Methods for Asynchronous Wideband CDMA Cellular System,” International Conference on Universal Personal Communications, IEEE, vol. 2, pp. 783-787 (Oct. 5, 1998).
Universal Mobile Telecommunications System (UMTS); UMTS Terrestrial Radio Access (UTRA) Concept evaluation; (UMTS 30.06 version 3.0.0); TR 101 146 V3.0.0, pp. 47-49, (Dec. 1997).
Wang et al., “Cell Search in W-CDMA,” IEEE Journal on Selected Areas in Communications, vol. 18, No. 8, pp. 1470-1482 (Aug. 2000).
Yahata, “Autonomous Master-Slave Frame Synchronization Among Microcellular Base Stations,” Electronics & Communications in Japan, Part I—Communications, Scripta Technica, vol. 82, No. 4, pp. 1-13 (Apr. 1999).

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