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Mobile station closed loop output power stability system for weak signal conditions 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04B-007/00
출원번호 US-0040555 (1998-03-18)
발명자 / 주소
  • Li Kaiping
  • Ong Chung-yen
출원인 / 주소
  • Oki Telecom, Inc.
대리인 / 주소
    Thomas, Kayden, Horstemeyer & Risley, LLP
인용정보 피인용 횟수 : 28  인용 특허 : 51

초록

A power control system is implemented within a mobile communications system to prevent erroneous power fluctuations by a mobile station when the power of signals communicated between the mobile station and a base station becomes so weak that the mobile station would otherwise erroneously interpret p

대표청구항

[ We claim:] [15.] A power control system for preventing erroneous power changes in a mobile communications system, comprising:a mobile station memory configured to store a power control threshold at a mobile station;a power control signal receiver configured to receive power control signals at said

이 특허에 인용된 특허 (51)

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  2. Schilling Donald L. (Sands Point NY), Adaptive power control for a spread spectrum communications system and method.
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  10. Wheatley ; III Charles E. (Del Mar CA) Padovani Roberto (San Diego CA) Zehavi Ephraim (San Diego CA), Fast forward link power control in a code division multiple access system.
  11. Davidovici Sorin ; Kanterakis Emmanuel, Fuzzy-logic spread-spectrum adaptive power control.
  12. Wheatley ; III Charles E. (Del Mar CA) Punch Derek N. (San Diego CA), High dynamic range closed loop automatic gain control circuit.
  13. Wheatley ; III Charles E. (Del Mar CA) Punch Derek N. (San Diego CA), High dynamic range closed loop automatic gain control circuit.
  14. Priest Mark D., Method and apparatus for controlling operation of a portable or mobile battery-operated radios.
  15. Priest Mark D., Method and apparatus for controlling operation of a portable or mobile battery-operated radios.
  16. Priest Mark D., Method and apparatus for controlling operation of a portable or mobile battery-operated radios.
  17. English Sean (Del Mar CA) DeJaco Andrew P. (San Diego CA), Method and apparatus for controlling power in a variable rate communication system.
  18. Tiedemann ; Jr. Edward G. ; Gilhousen Klein S. ; Odenwalder Joseph P. ; Zehavi Ephraim ; Levin Jeffrey A. ; Wheatley ; III Charles E., Method and apparatus for controlling power in a variable rate communication system.
  19. Gilhousen Klein S. (San Diego CA) Padovani Roberto (San Diego CA) Weaver ; Jr. Lindsay A. (San Diego CA), Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system.
  20. 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.
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  22. Su Chun-Meng (Lafayette CA) Behtash Saman (Berkeley CA), Method and apparatus for controlling transmission power of a remote unit communicating with a base unit over a common fr.
  23. Lindroth Magnus Lars,SEX ; Chambert Georg,SEX ; Bodin Roland Stig,SEX, Method and apparatus for regulating transmission power.
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  25. Larsson Stig M. (Linkping SEX) Andersson Hans E. (Vreta Kloster SEX), Method for regulating power in a digital mobile telephony system.
  26. Ivanov Kolio (Munich DEX) Metzner Norbert (Treuchtlingen DEX), Method for transmission power control of a mobile station.
  27. Mitzlaff James E. (Carpentersville IL), Multi-level power amplifying circuitry for portable radio transceivers.
  28. Katsuyama Tsutomu (Tokyo JPX) Yoshida Isao (Tokyo JPX) Kanai Toyoo (Tokyo JPX) Taguchi Yasunobu (Tokyo JPX), Output power control circuit for a mobile radio apparatus.
  29. Tamura Yoshiharu (Tokyo JPX), Output power control circuit for power amplifier.
  30. Metroka, Michael P.; Walczak, Thomas J.; Krolopp, Robert K., Portable telephone with power source/mode change during calls.
  31. Wray Anthony J. (Hants GBX) Bastani Babak (London IL GBX) Gailus Paul H. (Prospect Heights IL), Power amplifier and radio transmitter.
  32. Kornfeld Richard K. (San Diego CA) Weiland Ana L. (Encinitas CA) Okazaki Mitsunari (Fukushima JPX), Power amplifier bias control circuit and method.
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  34. Juntti Juhani (Puuppola FIX), Power control apparatus and method for a radiotelephone.
  35. Laborde Enrique ; Malcolm James Eryx ; Marquart Robert Carroll ; Morris Adrian, Power control for TDMA mobile satellite communication system.
  36. Laborde Enrique ; Malcolm James Eryx ; Marquart Robert Carroll ; Morris Adrian, Power control for TDMA mobile satellite communication system.
  37. Vilmur Richard J. (Palatine IL) Metroka Michael P. (Algonquin IL), Power control of a direct sequence CDMA radio.
  38. McGirr Andrew E. (Calgary CAX) Cassidy Barry J. (Calgary CAX), Radio telephone using received signal strength in controlling transmission power.
  39. Scharla-Nielsen Hans (Palm Bay FL), Real-time adaptive power control in satellite communications systems.
  40. Tiedemann ; Jr. Edward G. (San Diego CA), Remote transmitter power control in a contention based multiple access system.
  41. Gilhousen Klein S. (Bozeman MT) Wheatley ; III Charles E. (Del Mar CA) Levin Jeffrey A. (San Diego CA), Reverse link, closed loop power control in a code division multiple access system.
  42. Weiland Ana L. (Encinitas CA) Kornfeld Richard K. (San Diego CA) Kerr Richard J. (San Diego CA) Maloney John E. (San Diego CA) Wilson Nathaniel B. (San Diego CA), Reverse link, transmit power correction and limitation in a radiotelephone system.
  43. Weiland Ana L. (Encinitas CA) Kornfeld Richard K. (San Diego CA) Maloney John E. (San Diego CA), Reverse link, transmit power correction and limitation in a radiotelephone system.
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  45. Yamazaki Ryo (Arlington Heights IL) Waldroup Anthony B. (Suwanee GA) Wang He Feng (Saitama JPX), Saturation prevention system for radio telephone with open and closed loop power control systems.
  46. Lomp Gary R., Spread spectrum adaptive power control system and method.
  47. Lomp Gary R. (Centerport NY), Spread spectrum adaptive power control system and method.
  48. 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.
  49. Soliman Samir S., System and method for determining received pilot power and path loss in a CDMA communication system.
  50. 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.
  51. Wheatley ; III Charles E. (Del Mar CA), Transmitter power control system.

이 특허를 인용한 특허 (28)

  1. Kiran M. Rege, Adaptive symbol error count based technique for CDMA reverse link outer loop power control.
  2. Kohji Takeo JP, CDMA power control system.
  3. Noh, Suk Hoon, Enhanced closed-loop power control method.
  4. Sarkar, Sandip; Tiedemann, Jr., Edward G.; Odenwalder, Joseph P., Handoff in a wireless communication system.
  5. Tiedemann, Jr., Edward G.; Glauser, Olivier, Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system.
  6. Tiedemann, Jr., Edward G.; Glauser, Olivier, Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system.
  7. Karsi, Murat F.; Nunally, Patrick O., Method and apparatus for providing gain control feedback in RF amplifiers.
  8. Antonio, Franklin P.; Hamdy, Walid, Method and apparatus for reverse link overload detection.
  9. Antonio,Franklin P.; Hamdy,Walid, Method and apparatus for reverse link overload detection.
  10. Odenwalder, Joseph P., Method and system for performing a handoff in a wireless communication system, such as a hard handoff.
  11. Odenwalder, Joseph P., Method and system for performing a handoff in a wireless communication system, such as a hard handoff.
  12. Odenwalder, Joseph P., Method and system for performing a handoff in a wireless communication system, such as a hard handoff.
  13. Odenwalder,Joseph P., Method and system for performing a handoff in a wireless communication system, such as a hard handoff.
  14. Grilli, Francesco; Willenegger, Serge; Tiedemann, Jr., Edward G., Method and system for performing handoff in wireless communication systems.
  15. Agin,Pascal; Boch,S챕bastien, Method for improving performances of a mobile radiocommunication system using a power control algorithm.
  16. Norimatsu, Hidehiko, Method of updating reference value in high speed closed loop based on likelihood.
  17. Asada, Kenichi, Mobile phone and method of controlling transmission power.
  18. Morkner, Henrik, Monolithic integrated power regulation for power control and/or bias control.
  19. Ulupinar, Fatih; Attar, Rashid; Esteves, Eduardo, Multi-state power control mechanism for a wireless communication system.
  20. Bremer, Gordon; Matthews, Craig, Performance customization system and process for optimizing xDSL performance.
  21. Tooru Ogino JP, Portable telephone set and communications system incorporating same.
  22. Kawamoto, Kiyoshi; Yoshida, Akihiko, Radio access point testing apparatus.
  23. Takagi,Kenki; Ito,Kenichi; Yasaki,Takahiro; Mikoshiba,Takanori, Radio base station apparatus and transmission power control method.
  24. Ichikawa, Yasufumi, Radio communication device and transmission power control method for radio communication device.
  25. Shellhammer, Stephen J.; Van Nee, Richard, Spectrum sensing of bluetooth using a sequence of energy detection measurements.
  26. Masuda, Noboru; Kawamoto, Kiyoshi; Masuda, Satoshi, Transmission power control method of wireless communication terminal and a base station therefore.
  27. Baker, Matthew P. J.; Moulsley, Timothy J., Transmit power control in a radio station.
  28. Sakaniwa, Hidenori; Koike, Atsushi; Kitani, Mitsuhiro, Wireless communication terminal.
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