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System and method to combine power control commands during soft handoff in DS/CDMA cellular systems

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04Q-007/20
출원번호 US-0849632 (2001-05-04)
발명자 / 주소
  • Hashem Bassam,CAX
  • Secord Norman,CAX
  • Lee Wookwon,CAX
출원인 / 주소
  • Nortel Networks Limited, CAX
대리인 / 주소
    Haszko
인용정보 피인용 횟수 : 18  인용 특허 : 9

초록

Mobile stations in communication with several base stations in a cellular CDMA system (as when undergoing soft handoff) do not use the conventional "or of the downs" rule for assessing power control commands from base stations. Mobile stations assess the link quality of the links from the base stati

대표청구항

[ Having described the invention, what is claimed as new and secured by Letters Patent is:] [1.]1. A method for combining power control commands received from a plurality of base stations, the method comprising:receiving a power control command from one of said base stations;assigning a weight to sa

이 특허에 인용된 특허 (9)

  1. Kwon Hyung Uk,KRX ; Lee Young Jo,KRX, Apparatus and method for controlling power in code division multiple access system.
  2. Sundelin Magnus,SEX ; Knutsson Jens,SEX ; Butovitsch Paul Peter,SEX ; Thornberg Carl M.,JPX, Downlink power control in a cellular mobile radio communications system.
  3. Yoshida Shousei,JPX ; Ushirokawa Akihisa,JPX, FDD/CDMA transmission/reception system.
  4. Soliman Samir S., Load monitoring and management in a CDMA wireless communication system.
  5. Ling Fuyun ; Borth David E. ; Frank Colin D. ; Rasky Phillip D. ; Kepler James F., Method and apparatus for demodulation and power control bit detection in a spread spectrum communication system.
  6. Ling Fuyun (Hoffman Estates IL), Method and apparatus for power estimation in a communication system.
  7. Saints Keith W. ; Tiedemann ; Jr. Edward G., Method and apparatus for processing power control signals in CDMA mobile telephone system.
  8. 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.
  9. Lomp Gary R. (Centerport NY), Spread spectrum adaptive power control system and method.

이 특허를 인용한 특허 (18)

  1. Spaling,Gerke; Aschermann,Benedikt, Admission and congestion control in a CDMA-based mobile radio communications system.
  2. Kuriyama, Takahiro, Closed-loop transmitting power control method using variable updating amount.
  3. Spaling,Gerke; Aschermann,Benedikt, Congestion control in a CDMA-based mobile radio communications system.
  4. Tiedemann, Jr., Edward G.; Lundby, Stein A., Method and apparatus for channel quality feedback in a wireless communication.
  5. Woo,Kyoung Ho, Method and apparatus for controlling power of radio links.
  6. Willenegger,Serge, Method and apparatus for controlling transmit power of multiple channels in a CDMA communication system.
  7. Ulupinar,Fatih; Sundaram,Senthilkumar K., Method and apparatus for diversity searching and demodulator assignment in a wireless communication system.
  8. Lundby, Stein A., Method and apparatus for power control in a wireless communication system.
  9. Lundby, Stein Arne, Method and apparatus for power control in a wireless communication system.
  10. Nilsson, Johan, Method and apparatus for setting transmit power control command energy.
  11. Kamel, Raafat Edward; Meyers, Martin Howard; Weaver, Carl Francis; Wu, Xiao Cheng, Method for adjusting the transmit power level during soft handoff in wireless communication systems.
  12. Nilsson,Johan; Jonsson,Elias; Bernhardsson,Bo; Lindoff,Bengt, Methods, receivers, and computer program products for determining transmission power control commands using biased interpretation.
  13. Riaz Esmailzadeh JP; Paul Peter Butovitsch SE, Power control in a CDMA mobile communications system.
  14. Mueckenheim, Jens; Lin, Jie; Cao, Qiang; Soellner, Michael, Radio resource allocation methods and apparatus.
  15. Brouwer, Frank, Reliable congestion control in a CDMA-based mobile radio commmunications system.
  16. Cleveland,Joseph R.; Csapo,John S., System and method for combining signals at multiple base station receivers.
  17. Esmailzadeh,Riaz; Yano,Takashi; Doi,Nobukazu, Transmission control method and apparatus for mobile communication system.
  18. Esmailzadeh,Riaz; Yano,Takashi; Doi,Nobukazu, Transmission power control method and apparatus for mobile communication system.
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