Common packet channel with firm handoff

Details Common packet channel with firm handoff Common packet channel with firm handoff

2006-01-10

2006-01-10

Bocure, Tesfaldet (Department: 2631)

Pulse or digital communications

Spread spectrum

Direct sequence

C370S335000

Reexamination Certificate

active

06985511

ABSTRACT:
An improvement to a code-division-multiple-access (CDMA) system employing spread-spectrum modulation, with the CDMA system having a base station (BS) and a plurality of remote stations. The base station has a BS-spread-spectrum transmitter and a BS-spread-spectrum receiver. A remote station has an RS-spread-spectrum transmitter and an RS-spread-spectrum receiver. The BS transmitter transmits a broadcast common-synchronization channel, which includes a frame-timing signal. The broadcast common-synchronization channel has a common chip-sequence signal, which is common to the plurality of remote stations. In response to the RS-spread-spectrum receiver receiving the broadcast common-synchronization channel, and determining frame timing from the frame-timing signal, an RS-spread-spectrum transmitter transmits an access-burst signal, which includes, RS-power-control signals, transmitted in time, at increasing power levels. The BS-spread-spectrum transmitter, responsive to the BS-spread-spectrum receiver receiving the access-burst signal, and detecting an RS-preamble signal, transmits an acknowledgment signal. In response to the first RS-spread-spectrum receiver receiving the acknowledgment signal, the first RS-spread-spectrum transmitter transmits a spread-spectrum signal having data. The BS-spread-spectrum transmitter transmits either data or power-control information to the RS-spread-spectrum receiver.

REFERENCES:
patent: 4689786 (1987-08-01), Sidhu et al.
patent: 5103459 (1992-04-01), Gilhousen et al.
patent: 5280472 (1994-01-01), Gilhousen et al.
patent: 5295140 (1994-03-01), Crisler et al.
patent: 5305308 (1994-04-01), English et al.
patent: 5329550 (1994-07-01), Rousseau et al.
patent: 5384777 (1995-01-01), Ahmadi et al.
patent: 5461639 (1995-10-01), Wheatley, III et al.
patent: 5491837 (1996-02-01), Haartsen
patent: 5535210 (1996-07-01), Smolinske et al.
patent: 5537397 (1996-07-01), Abramson
patent: 5544196 (1996-08-01), Tiedemann, Jr. et al.
patent: 5581707 (1996-12-01), Kuecken
patent: 5600754 (1997-02-01), Gardner et al.
patent: 5621723 (1997-04-01), Walton, Jr. et al.
patent: 5671218 (1997-09-01), I et al.
patent: 5673259 (1997-09-01), Quick, Jr.
patent: 5729542 (1998-03-01), Dupont
patent: 5802046 (1998-09-01), Scott
patent: 5802465 (1998-09-01), Hamalainen et al.
patent: 5809430 (1998-09-01), D'Amico
patent: 5825835 (1998-10-01), Kingston et al.
patent: 5841768 (1998-11-01), Ozluturk et al.
patent: 5850602 (1998-12-01), Tisdale et al.
patent: 5875182 (1999-02-01), Hatzipapafotiou
patent: 5893036 (1999-04-01), Trandai et al.
patent: 5894472 (1999-04-01), de Seze
patent: 5933777 (1999-08-01), Rahman
patent: 5943327 (1999-08-01), Mademann
patent: 5953369 (1999-09-01), Suzuki
patent: 5982763 (1999-11-01), Sato
patent: 5991308 (1999-11-01), Fuhrmann et al.
patent: 6009089 (1999-12-01), Huang et al.
patent: 6011788 (2000-01-01), Hurst et al.
patent: 6026081 (2000-02-01), Hamabe
patent: 6028851 (2000-02-01), Persson et al.
patent: 6031832 (2000-02-01), Turina
patent: 6038223 (2000-03-01), Hansson et al.
patent: 6038250 (2000-03-01), Shou et al.
patent: 6091757 (2000-07-01), Cudak et al.
patent: 6115390 (2000-09-01), Chuah
patent: 6141337 (2000-10-01), Uta et al.
patent: 6141373 (2000-10-01), Scott
patent: 6144841 (2000-11-01), Feeney
patent: 6163533 (2000-12-01), Esmailzadeh et al.
patent: 6163708 (2000-12-01), Groe
patent: 6169759 (2001-01-01), Kanterakis et al.
patent: 6256301 (2001-07-01), Tiedemann, Jr. et al.
patent: 6292471 (2001-09-01), Cao et al.
patent: 6301286 (2001-10-01), Kanterakis et al.
patent: 6310868 (2001-10-01), Uebayashi et al.
patent: 6366779 (2002-04-01), Bender et al.
patent: 6389056 (2002-05-01), Kanterakis et al.
patent: 6442153 (2002-08-01), Dahlman et al.
patent: 6480525 (2002-11-01), Parsa et al.
patent: 6507601 (2003-01-01), Parsa et al.
patent: 0731578 (1996-09-01), None
patent: 0773636 (1997-05-01), None
patent: 2318256 (1998-04-01), None
patent: 9233051 (1997-05-01), None
patent: WO93/18601 (1993-09-01), None
patent: WO97/29596 (1997-08-01), None
patent: WO00/03499 (2000-01-01), None
patent: WO00/08908 (2000-02-01), None
patent: WO00/18172 (2000-03-01), None
patent: WO00/22873 (2000-04-01), None
patent: WO00/57591 (2000-09-01), None
patent: WO00/57663 (2000-09-01), None
Dr. Kourosh Parsa, “Common Packet Channel (CPCH): The optimum wireless Internet mechanism in W-CDMA,” IEE 2000, p 148-155.
U.S. Appl. No. 09/273,450, Mar. 22, 1999.
U.S. Appl. No. 09/941,756, Aug. 30, 2001.
Donh In Kim et al., “Random Assignment/Transmitter Oriented Code Scheme for Centralized DS/SSMA Packet Radio Networks,”IEEE Journal on Selected Area in Communication, vol. 14, No. 8, Oct. 1996, pp. 1560-1568.
Riaz Esmailzadeh et al., “A New Slotted ALOHA Based Random Access Method for CDMA Systems,”IEEE, ICUPC 1997, pp. 43-47.
“Start UMTS Services with 3G-GPRS:CPCH FACH,”Golden Bridge Technology, Innovations and Technologies, pp. 1-20 (Jun. 27, 2000).
The Common Packet Channel Considered the 3rd Generation GPRS,System Engineering of Data Services in UMTS W-CDMA Systems, Galway, Ireland, Oct. 1-4, 2000.
Jongray Na, “Error Performance Analysis of Data Based Fast Channel Estimation for CDMA uplink with Staggered Burst Pilot” 1997,IEEE, pp. 2177-2181.
Dae-Ki Hong et al., “Pilot to data channel power allocation for PCA-DS/CDMA with interference canceler,” 2001,IEEE, pp. 331-333.
Sofiene Affes et al., “Pilot-assisted STAR for increasing capacity and caverage on the downlink of wideband CDMA networks,” 2001,IEEE, pp. 310-313.
John S. Thompson et al., “Pilot power allocation for CDMA system with antenna arrays,” 2000,IEEE, pp. 424-428.

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