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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Method and apparatus for power control in a spread spectrum communication system using threshold step-down size adjustme

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H04B-001/69    H04J-013/02   
미국특허분류(USC) 375/200 ; 370/342
출원번호 US-0616542 (1996-03-15)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Haas
인용정보 피인용 횟수 : 34  인용 특허 : 8
초록

Power control in a spread-spectrum communication system takes place by dynamically adjusting the step-down size of a power control threshold (409, 413) based on an acquired number of poor-quality frames (405). The step-down size of the threshold is increased (413) or decreased (409) depending on an amount of frame erasures detected by the system. Additionally full-rate or sub-rate frame quality is used to dynamically adjust the step-down size of a power control threshold.

대표
청구항
▼

[ What is claimed is:] [1.] An apparatus for power control in a spread-spectrum communication system where a base station compares an energy of a signal received from a remote unit to a threshold and instructs the remote unit to power up or power down based on the comparison, and the threshold is decreased by a first step-down size based on a quality of the signal received by the remote unit the apparatus comprising:a receiver for receiving a plurality of frames;a filter coupled to the receiver, said filter storing the plurality of frames to produce a pl...

이 특허에 인용된 특허 (8)

  1. Ling Fuyun (Jamaica Plains MA). Method and apparatus for adjusting a power control threshold in a communication system. USP1993065216692.
  2. Muszynski Peter (Helsinki FIX). Method and apparatus for controlling signal quality in a CDMA cellular telecommunications. USP1997045623484.
  3. Ariyavisitakul Sirikiat (Tinton Falls NJ) Chuang Justin C. (Holmdel NJ) Sollenberger Nelson R. (Tinton Falls NJ). Method and apparatus for dynamic power control in TDMA portable radio systems. USP1994075333175.
  4. Padovani Roberto (San Diego CA) Ziv Noam (San Diego CA). Method and system for the dynamic modification of control paremeters in a transmitter power control system. USP1995035396516.
  5. Hall Scott M. (Fort Worth TX). Method for compensating for capacity overload in a spread spectrum communication system. USP1993095245629.
  6. Hall Scott M. (Fort Worth TX). Method for controlling transmission power in a communication system. USP1995125475861.
  7. Kanai Toshihito (Tokyo JPX). Transmission power control system capable of keeping signal quality constant in mobile communication network. USP1995015386589.
  8. Wheatley ; III Charles E. (Del Mar CA). Transmitter power control system. USP1993115267262.

이 특허를 인용한 특허 피인용횟수: 34

  1. Kim,Youn Sun; Kim,Dae Gyun; Choi,Ho Kyu; Kwon,Hwan Joon; Huh,Hoon; Yun,Yu Suk; Kim,Dong Hee. Apparatus and method for controlling power of reverse channels in a mobile communication system. USP2008087408894.
  2. Anderson, Nicholas; O'Neil, Rorie. Apparatus and method for power control in a radio communication system. USP2004066748232.
  3. Lomp, Gary R.; Ozluturk, Faith M.; Kowalski, John. Automatic power control system for a code division multiple access (CDMA) communications system. USP2017029564963.
  4. Ozluturk, Fatih M.; Jacques, Alexander M.; Lomp, Gary R.; Kowalski, John. Code division multiple access (CDMA) communication system. USP2014058737363.
  5. Okawa, Koichi; Ohno, Koji; Sawahashi, Mamoru; Uebayashi, Shinji; Okumura, Yukihiko. DS-CDMA transmission method. USP2005016842442.
  6. Attar, Rashid A.; Black, Peter J.; Bhushan, Naga. De-coupling forward and reverse link assignment for multi-carrier wireless communication systems. USP2010127848298.
  7. Tripathi, Nishith D.. Enhanced power control algorithms for fixed wireless access systems. USP2003076587442.
  8. Kuo,Wen Yi. Error-rate management in wireless systems. USP2007117292601.
  9. Kusaki, Tsutomu; Sakamoto, Kenichi; Murakami, Masaru; Yokoyama, Takashi. Handover method in mobile communication system. USP2004066754495.
  10. Kyusojin, Hiroshi. Image decoder and image decoding method and program. USP2009127639743.
  11. Jain,Avinash; Holtzman,Jack M.. Method and apparatus for congestion control in a wireless communication system. USP2008097428421.
  12. Jain,Avinash; Holtzman,Jack M.. Method and apparatus for congestion control in a wireless communication system. USP2006016983153.
  13. Love Robert T. ; Ashley James P. ; Proctor Lee ; Barot Anil ; Cohen Arnie. Method and apparatus for controlling communication system capacity. USP2000036034971.
  14. Lin,Wei; Hsia,Daniel Jeng. Method and apparatus for fast convergent power control in a spread spectrum communication system. USP2008037339994.
  15. Morgan,William K.; Cordell,Donald P.; Smith,Erik C.. Method and apparatus for full rate erasure handling in CDMA. USP2007017168023.
  16. Lin,Wei; Lee,Yuan Kang. Method and apparatus for low power-rise power control using sliding-window-weighted QoS measurements. USP2008027330504.
  17. Menich Barry J. ; TenBrook Keith A. ; Ritchie Thomas W. ; DeClerck Daniel J.. Method and apparatus for performing soft-handoff in a wireless communication system. USP1999055901354.
  18. Neumiller Phillip D. ; Lei Peter ; Stewart Randall R.. Method and selector for performing selection in a communication system. USP2001056226283.
  19. Au,Jean Put Ling; Attar,Rashid Ahmed. Method and system for a dynamic adjustment of a data request channel in a communication system. USP2006087092717.
  20. Shetty, Manoj; Vargantwar, Sachin R.; Oroskar, Siddarth S.; Doshi, Kamal; Goyal, Anoop K.. Method and system for forward link and/or reverse link power control. USP2012078213979.
  21. Shetty, Manoj; Vargantwar, Sachin R.; Oroskar, Siddharth S.; Doshi, Kamal; Goyal, Anoop K.. Method and system for forward link and/or reverse link power control. USP2013048412258.
  22. Feeney Michael Stephen. Method and system for managing forward link power control within a code-division multiple access mobile telephone communication network. USP2000116144841.
  23. Kurjenniemi, Janne. Method, device and system for power control step size selection based on received signal quality. USP2004076760598.
  24. Ulupinar, Fatih; Attar, Rashid; Esteves, Eduardo. Multi-state power control mechanism for a wireless communication system. USP2005046876866.
  25. Hämäläinen, Seppo; Lappeteläinen, Antti. Power control method of discontinuous transmission. USP2010097801545.
  26. Hämäläinen, Seppo; Lappeteläinen, Antti. Power control method of discontinuous transmission. USP2013098543153.
  27. H채m채l채inen,Seppo; Lappetel채inen,Antti. Power control method of discontinuous transmission. USP2007087263077.
  28. Cheng Terry Si-Fong ; Huang Ching Yao ; Huang Joe ; Yu Bee Yun. Processing overload control at base stations of cellular wireless communication systems. USP2001056240287.
  29. Jalali Ahmad. Signal to noise estimation of forward link traffic channel for fast power control. USP2001056233439.
  30. Kusaki, Tsutomu; Sakamoto, Kenichi; Murakami, Masaru; Yokoyama, Takashi. Switching center for mobile handover. USP2010067729699.
  31. Weaver, Carl Francis; Wu, Xiao Cheng. Synchronization of transmit power level settings for soft-handoff in wireless systems by the use of level constraints. USP2003096628957.
  32. Vanghi, Vieri. System and method for data burst communications in a CDMA network. USP2004036711150.
  33. Chang, Li Fung; Chawla, Kapil K.; Chuang, Justin Chi-I; Kostic, Zoran; Qiu, Xiaoxin; Sollenberger, Nelson Ray; Timiri, Shailender B.. TDMA communication system having enhanced power control. USP2004066754506.
  34. Chang, Li Fung; Chawla, Kapil K.; Chuang, Justin Che-I; Qiu, Xiaoxin. Wireless network having joint power and data rate adaptation. USP2005096950670.

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