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Fast acquisition of a pilot signal in a wireless communication device

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04B-001/00
  • H04W-004/00
출원번호 UP-0754984 (2007-05-29)
등록번호 US-7684470 (2010-04-21)
발명자 / 주소
  • Hughes, Robbin D.
  • Yao, De-Gang
  • Glazko, Serguei A.
출원인 / 주소
  • QUALCOMM Incorporated
대리인 / 주소
    Beladi, Sayed H.
인용정보 피인용 횟수 : 1  인용 특허 : 47

초록

In a remote unit of a wireless communication system, the speed of acquisition, or reacquisition, of a pilot signal by a search engine is increased. PN space is divided into segments and a coarse search of each segment is performed using a set of “fast” search parameters. A set of peak

대표청구항

What is claimed is: 1. A wireless communication system comprising: at least one remote unit configured to perform a coarse search of an entire PN space using coarse search parameters and identify a plurality of portions of the entire PN space, and subsequently to perform a fine search of the plural

이 특허에 인용된 특허 (47)

  1. McDonough, John; Iraninejad, Mehraban, Apparatus and method for parallel searching and correlating for CDMA system.
  2. Tiedemann ; Jr. Edward G. (San Diego CA) Weaver ; Jr. Lindsay A. (San Diego CA) Kerr Richard J. (San Diego CA) Geib Kenneth M. (Encinitas CA), Apparatus and method for reducing power consumption in a mobile communications receiver.
  3. Witter Robert C. (Lawrenceville GA), Artificial window size interrupt reduction system for CDMA receiver.
  4. Watanabe Masatoshi,JPX, Cell search method and mobile station apparatus.
  5. Levin Jeffrey A. (San Diego CA) Werner David E. (San Diego CA) Easton Kenneth D. (San Diego CA), Cell site demodulation architecture for a spread spectrum multiple access communication systems.
  6. Kaku Tomoya,JPX, De-spread code phase detection apparatus in spread spectrum type receiver.
  7. Blakeney ; II Robert D. (San Diego CA) Weaver ; Jr. Lindsay A. (Boulder CO) Ziv Noam A. (San Diego CA) Williamson Paul T. (San Diego CA) Padovani Roberto (San Diego CA), Demodulation element assignment in a system capable of receiving multiple signals.
  8. Naden, Gary A.; Rouquette, Robert E.; Reiser, Dale E., Direct sequence spread spectrum method computer-based product apparatus and system tolerant to frequency reference offset.
  9. Naden Gary A. ; Rouquette Robert E. ; Sanderford ; Jr. H. Britton ; Reiser Dale E. ; Hwang Charles A. ; Reed Marc L., Direct sequence spread spectrum method, computer-based product, apparatus and system tolerant to frequency reference offset.
  10. Chung Sunguoon (San Diego CA) Czaja Stash (Cardiff CA), Double dwell maximum likelihood acquisition system with continuous decision making for CDMA and direct spread spectrum s.
  11. Bayley, Gwain, Dynamic adjustment of search window size in response to signal strength.
  12. Hughes, Robbin D., Dynamic allocation of microprocessor resources in a wireless communication device.
  13. Hughes Robbin D. ; Williamson Paul T., Dynamic control of search duration in a wireless communication device.
  14. Gwain Bayley ; Robbin Hughes, Dynamically adjusting integration interval based on a signal strength.
  15. Kim Kyu-Nam,KRX ; Kim Dong-Woo,KRX, Idle handoff controlling method in cellular communication system.
  16. LaRosa,Christopher Peter; Storm,Brian David; Carney,Michael John; Becker,Christopher; Schirtzinger,Tracie Ann; Steckl,Dave, Method and apparatus for acquisition of a spread-spectrum signal.
  17. Jou, Yu-Cheun; Wang, Jun; Rezaiifar, Ramin; Achour, Baaziz; Chen, Tao, Method and apparatus for generating pilot strength measurement messages.
  18. Schorman Eric R. ; Kotzin Michael D., Method and apparatus for handoff within a communication system.
  19. Neufeld Arthur James, Method and apparatus for improving neighbor searching performance.
  20. Tiedemann ; Jr. Edward G. ; Chen Tao, Method and apparatus for performing mobile assisted hard handoff between communication systems.
  21. Sutton Todd R., Method and apparatus for performing search acquisition in a CDMA communication system.
  22. Sutton Todd R. (San Diego CA), Method and apparatus for performing search acquisition in a CDMA communications system.
  23. Yu-Cheun Jou, Method and apparatus for performing search acquisition in a multi-carrier communication system.
  24. Soliman, Samir S., Method and apparatus for reducing pilot search times utilizing mobile station location information.
  25. Owen Scott M. ; Hughes Robbin D., Method and apparatus for scanning other frequency pilot signals in a code division multiple access communication system.
  26. Tiedemann ; Jr. Edward G. (San Diego CA) Weaver ; Jr. Lindsay A. (San Diego CA) Kerr Richard J. (San Diego CA) Geib Kenneth M. (Encinitas CA), Method and apparatus for scheduling communication between transceivers.
  27. LaRosa,Christopher Peter; Storm,Brian David; Carney,Michael John; Schirtzinger,Tracie Ann, Method of and apparatus for activating a spread-spectrum radiotelephone.
  28. Storm Brian D. ; Krause David J., Method of and apparatus for pilot channel acquisition.
  29. Sung-il Byun KR, Method of establishing search window size for a mobile station in a cellular system.
  30. Bruckert Eugene J. ; Vilmur Richard J., Method of handing off and a wireless communication device.
  31. Bruckert Eugene J. ; Vilmur Richard J., Method of handing off and a wireless communication device.
  32. Ziv Noam A. ; Padovani Roberto ; Levin Jeffrey A. ; Easton Kenneth D., Method of searching for a bursty signal.
  33. Ziv Noam A. ; Padovani Roberto ; Levin Jeffrey A. ; Easton Kenneth D., Method of searching for a bursty signal.
  34. Chung Chae-Hun,KRX, Method of searching reverse traffic channels in a CDMA mobile radio communication system.
  35. Easton Kenneth D., Mobile demodulator architecture for a spread spectrum multiple access communication system.
  36. Levin, Jeffrey A., Multichannel demodulator.
  37. Kaiping Li, Partial sleep system for power savings in CDMA wireless telephone devices.
  38. Yamamoto, Katsuya; Watanabe, Nobuhiko, Pilot signal detection method and receiver.
  39. Padovani Roberto (San Diego CA) Hamdy Walid M. (San Diego CA) Bar-David Gil (Kullu INX), Pilot signal searching technique for a cellular communications system.
  40. Mekkoth Ajith ; Yeoman Darin ; Gould Adam ; Dowling Joe, Prioritizing pilot set searching for a CDMA telecommunications system.
  41. Avneesh Agrawal ; Qiuzhen Zou, Programmable matched filter searcher.
  42. Zehavi Ephraim,ILX ; Skinner ; deceased Gordon ; Boodakian ; executrix by Margo, Rapid signal acquisition and synchronization for access transmissions.
  43. Zhong, Lizhi, Search scheme for receivers in mobile communication systems.
  44. Chung Sanguoon (San Diego CA) Noneman John W. (Valley Center CA), Serial search acquisition system with adaptive threshold and optimal decision for spread spectrum systems.
  45. Gilhousen Klein S. (San Diego CA) Jacobs Irwin M. (La Jolla CA) Weaver ; Jr. Lindsay A. (San Diego CA), Spread spectrum multiple access communication system using satellite or terrestrial repeaters.
  46. Wang James J. M., Spread spectrum position determination, ranging and communication system.
  47. Murai Hideshi,JPX ; Tachika Hisao,JPX, Spread-spectrum signal receiving method and spread-spectrum signal receiving apparatus.

이 특허를 인용한 특허 (1)

  1. Haker, Marshall E; Raquet, John F, Global navigation satellite system signal decomposition and parameterization algorithm.
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