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Method of controlling initial power ramp-up in a CDMA system by using short codes

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04Q-007/20
출원번호 US-0210961 (2002-08-02)
발명자 / 주소
  • Ozluturk, Fatih M.
  • Lomp, Gary R.
출원인 / 주소
  • InterDigital Technology Corporation
대리인 / 주소
    Volpe and Koenig, P.C.
인용정보 피인용 횟수 : 13  인용 특허 : 24

초록

A method of controlling transmission power during the establishment of a channel in a CDMA communication system utilizes the transmission of a short code from a subscriber unit to a base station during initial power ramp-up. The short code is a sequence for detection by the base station which has a

대표청구항

1. A method for controlling transmission power during the establishment of communications between a base station and a subscriber unit, the method comprising the steps of:transmitting a periodic short code from the subscriber unit at an initial predetermined power level, the periodic short code bein

이 특허에 인용된 특허 (24)

  1. Dent Paul W. (Stehag SEX), Calling channel in CDMA communications system.
  2. Fukasawa Atsushi (Tokyo JPX) Kawabe Manabu (Tokyo JPX) Kawahashi Akiyoshi (Tokyo JPX) Sato Takuro (Tokyo JPX), Code-division multiple-access communication system providing enhanced capacity within limited bandwidth.
  3. Mallinckrodt Albert J. (Santa Ana CA), Integrated cellular communications system.
  4. Andoh Akira (Hyogo JPX), Linear-modulation type radio transmitter.
  5. Bruckert Eugene J. (Arlington Heights IL) Falconer David D. (Nepean CAX), Method and apparatus for accommodating a variable number of communication channels in a spread spectrum communication sy.
  6. Zehavi Ephraim (San Diego CA), Method and apparatus for bifurcating signal transmission over in-phase and quadrature phase spread spectrum communicatio.
  7. English Sean (Del Mar CA) DeJaco Andrew P. (San Diego CA), Method and apparatus for controlling power in a variable rate communication system.
  8. Gilhousen Klein S. (San Diego CA) Padovani Roberto (San Diego CA) Wheatley ; III Charles E. (Del Mar CA), Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system.
  9. Gilhousen Klein S. (San Diego CA) Padovani Roberto (San Diego CA) Wheatley ; III Charles E. (Del Mar CA) Weaver ; Jr. Lindsay A. (San Diego CA) Blakeney ; II Robert D. (San Diego CA), Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system.
  10. Weaver ; Jr. Lindsay A. (Boulder CO) Bayley Gwain (San Diego CA) Tiedemann ; Jr. Edward G. (San Diego CA) Gilhousen Klein S. (Bozeman MT), Method and apparatus for providing mobile unit assisted hard handoff from a CDMA communication system to an alternative.
  11. De Gaudenzi Riccardo (Leiden NLX) Viola Roberto (Oegstgeest NLX) Elia Carlo (Oegstgeest NLX), Method and device for multiplexing data signals.
  12. Ozluturk Faith M. ; Lomp Gary R., Method of controlling initial power ramp-up in CDMA systems by using short codes.
  13. Meehan Thomas K. (Glendale CA), Multipath noise reduction for spread spectrum signals.
  14. Abrahamson Curtis M. (North Salt Lake UT) Zscheile ; Jr. John W. (Farmington UT) Mower Vaughn L. (Bountiful UT), Multiple access code acquisition system.
  15. Dent Paul W. (Stehag NC SEX) Bottomley Gregory E. (Cary NC), Multiple access coding for radio communications.
  16. Jensen Ole H. (Copenhagen DKX), Power amplifier.
  17. Dent Paul W. (Stehag SEX), Random access in mobile radio telephone systems.
  18. Bi Qi (Morris Plains NJ), Signal despreader for CDMA systems.
  19. Gilhousen Klein S. (San Diego CA) Padovani Roberto (San Diego CA) Wheatley ; III Charles E. (Del Mar CA), Spread spectrum transmitter power control method and system.
  20. Lee Edward K. B. (Sunrise FL) Cadd Jimmy (Coral Springs FL) Fulghum Tracy L. (Sunrise FL) Babayi Robert S. (Sunrise FL), System and method for bit timing synchronization in an adaptive direct sequence CDMA communication system.
  21. Gilhousen Klein S. (San Diego CA) Jacobs Irwin M. (La Jolla CA) Padovani Roberto (San Diego CA) Weaver ; Jr. Lindsay A. (San Diego CA) Wheatley ; III Charles E. (Del Mar CA) Viterbi Andrew J. (La Jol, System and method for generating signal waveforms in a CDMA cellular telephone system.
  22. Havel Christophe (6 ; mail R. Menand 92130 Issy-Les-Moulineaux FRX) Mazziotto Grald (7 ; rue Cadix 75015 Paris FRX), Transmission power control device in a radio communication transmitting/receiving station.
  23. Wheatley ; III Charles E. (Del Mar CA), Transmitter power control system.
  24. Haim John W., Virtual locating of a fixed subscriber unit to reduce re-acquisition time.

이 특허를 인용한 특허 (13)

  1. Lomp, Gary R.; Ozluturk, Faith M.; Kowalski, John, Automatic power control system for a code division multiple access (CDMA) communications system.
  2. Lomp,Gary; Ozluturk,Fatih; Kowalski,John, Automatic power control system for a code division multiple access (CDMA) communications system.
  3. Ozluturk, Fatih M.; Jacques, Alexander M.; Lomp, Gary R.; Kowalski, John, Code division multiple access (CDMA) communication system.
  4. Ozluturk, Fatih; Lomp, Gary R.; Kowalski, John, Method and apparatus for adaptive power control for spread-spectrum communications.
  5. Ozluturk, Fatih; Lomp, Gary R., Method and apparatus for performing an access procedure.
  6. Ozluturk,Fatih; Lomp,Gary R., Method and apparatus for performing an access procedure.
  7. Ozluturk,Fatih; Lomp,Gary R., Method and apparatus for performing an access procedure.
  8. Ozluturk, Fatih M.; Lomp, Gary R., Method and subscriber unit for performing an access procedure.
  9. Ozluturk, Fatih; Lomp, Gary, Method and subscriber unit for performing power control.
  10. Ozluturk,Fatih; Lomp,Gary R., Method employed by a base station for controlling initial power ramp-up using short codes.
  11. Ozluturk, Fatih M.; Lomp, Gary R., Subscriber unit for performing an access procedure.
  12. Crocker, Ronald T.; Luz, Yuda; Rotstein, Ron, System and method for predictive transmit power control for mobile stations in a multiple access wireless communication system.
  13. Lomp, Gary; Ozluturk, Fatih; Silverberg, Avi, Transferring voice and non-voice data.
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