Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-07-10
2007-07-10
Nguyen, Duc M. (Department: 2618)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S442000, C455S522000, C370S331000
Reexamination Certificate
active
10634247
ABSTRACT:
A method for minimizing search time and disruption of current service on an originating frequency during a frequency search excursion to a target frequency as part of an inter-frequency hard handoff between cells on different RF CDMA channels. Disruption of service on the current frequency during the frequency search excursion to the target frequency is minimized by increasing the amount of power allocated to other symbols of two consecutive frames impacted by the search excursion as a function of the search excursion time. The mobile station tunes to a target frequency and collects chip samples, which are stored in a memory buffer. The mobile station returns to the originating frequency to process the collected samples.
REFERENCES:
patent: 5751725 (1998-05-01), Chen
patent: 5896368 (1999-04-01), Dahlman et al.
patent: 5999816 (1999-12-01), Tiedemann et al.
patent: 6047165 (2000-04-01), Wright et al.
patent: 6078570 (2000-06-01), Czaja et al.
patent: 6134440 (2000-10-01), Black
patent: 6144649 (2000-11-01), Storm et al.
patent: 6181943 (2001-01-01), Kuo et al.
patent: 6185431 (2001-02-01), Li et al.
patent: 6587446 (2003-07-01), Sarkar et al.
patent: 6603751 (2003-08-01), Odenwalder
patent: 0530165 (1993-03-01), None
patent: 548939 (2003-06-01), None
patent: 97/40592 (1997-10-01), None
patent: 9740592 (1997-10-01), None
patent: 9740792 (1997-11-01), None
patent: 98/36607 (1998-08-01), None
patent: 99/41934 (1999-08-01), None
patent: 9941934 (1999-08-01), None
PG Andermo (Ericsson Radio System AB), “CODIT Final Review Report”, Nov. 21, 1995, pp. 1-7, 10-12, 21-32, 46-49, 76-89.
Alfred Baier et al., “Design Study for a CDMA-Based Third-Generation Mobile Radio System”, IEEE Journal on Selected Areas in Communication, May 1994, pp. 733-743, vol. 12, No. 4, IEEE.
Maria Gustafsson et al., “Compressed Mode Techniques for Inter-Frequency Measurements in a Wide-band DS-CDMA System”, 1997, pp. 231-235, IEEE.
Tero Ojanperä et al., textbook “Wideband CDMA for Third Generation Mobile Comppunications” 1998, pp. 152-155, 178-179, 183, 226-231, and 337.
European Telecommunications Standards Institute, “Digital Cellular Telecommunications System; Multiband Operation of GSM/DCS 1 800 by a Single Operator (GSM 03.26 version 5.2.0)”, ETSI Technical Report 366, Third Edition, Nov. 1997, pp. 1-17.
European Telecommunications Standards Institute, “Digital Cellular Telecommunications System (Phase 2+); Technical Realization of the Short Message Service (SMS); Point-to-Point (PP) (GSM 03.40 version 5.6.0)”, ETSI Technical Report Draft, ETS 300 901, Third Edition, Aug. 1997, pp. 1, 13-14.
European Telecommunications Standards Institute, “Digital Cellular Telecommunications System (Phase 2+); General Packet Radio Service (GPRS); Mobile Station (MS) - Base Station System (BSS) Interface; Radio Link Control/Medium Access Control (RLC/MAC) protocol (GSM 04.60 version 6.0.0)”, ETSI Draft EN 04.60, Mar. 20, 1998, pp. 1, 38-43.
Beladi S. Hossain
Nguyen Duc M.
Nguyen Thien
Qualcomm Incorporated
Rouse Thomas R.
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