Telecommunications – Transmitter – Power control – power supply – or bias voltage supply
Reexamination Certificate
2007-12-25
2007-12-25
Tieu, Binh K. (Department: 2614)
Telecommunications
Transmitter
Power control, power supply, or bias voltage supply
C455S343100, C455S432100, C455S435100, C455S550100
Reexamination Certificate
active
10602969
ABSTRACT:
Methods and apparatus for use in reestablishing a data connection with a wireless communication network are described. Initially, a wireless communication device maintains a data connection with a wireless communication network. During an out-of-coverage condition with the network, the wireless device is powered off. This causes the wireless device to reset its parameters associated with the data connection, but the wireless network will fail to disconnect since the wireless device is out-of-coverage. After being powered back on and regaining network coverage, the wireless device transmits a message to the network which causes one or more network parameters associated with the data connection to be reset. Subsequently, the wireless device transmits one or more additional messages to the network for reestablishing the data connection. In the preferred embodiment, the data connection is a Packet Data Protocol (PDP) context with a General Packet Radio Service (GPRS) attachment, the message is a disconnect frame, and the one or more additional messages include a General Packet Radio Service (GPRS) attach request. Advantageously, a data connection is substantially seamlessly maintained for the wireless device despite network connection complexities.
REFERENCES:
patent: 6275713 (2001-08-01), Toda
patent: 7003286 (2006-02-01), Brown et al.
patent: 2003/0109243 (2003-06-01), Chang et al.
patent: WO 00/54524 (2000-09-01), None
patent: WO 00 54524 (2000-09-01), None
patent: WO 02/03725 (2002-01-01), None
patent: WO 02 03725 (2002-01-01), None
PCT Search Report For Application # PCT/CA03/00954, Jun. 25, 2005.
“Digital cellular telecommunications system(Phase 2+); Security related network functions/GSM 03.20 Version 7.2.0. Release 1998)”, ESTI TS 100 929, Nov. 1999, p. 1-104, XP-002167429.
Yair Frankel, “Security Issues in a CDPD Wireless Network”, IEEE Personal Communications, Aug. 1, 1995, p. 16-27, vol. 2 No. 4, IEEE Communications Society, New York, NY USA.
International Search Report of Application No. PCT/CA03/00954 dated Sep. 17, 2003 Digital cellular telecommunications system (Phase 2+); Security related network functions (GSM 03.20 version 7.2.0 Release 1998); ETSI TS 100 929 V7.2.0, XX, XX; Nov. 1999, pp. 1-104, XP002167429 p. 55-73, paragraph D Yair Frankel et al: “Security Issues In A CDPD Wireless Network” IEEE Personal Communications, IEEE Communications Society, US, vol. 2, No. 4, Aug. 1, 1995, pp. 16-27, XP000517586; ISSN: 1070-9916 p. 18, left hand column, line 25-36; p. 22, left-hand column, line 20-55.
Oskorep, Esq. John J.
Research In Motion Limited
Tieu Binh K.
LandOfFree
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