$\require{mediawiki-texvc}$

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison, Kafe, Webinar 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

Method and system for demodulation of downlink CDMA signals 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H03D-001/00
  • H04B-001/10
출원번호 US-0187062 (1994-01-27)
발명자 / 주소
  • Dent Paul W. (Stehags SEX) Bottomley Gregory E. (Cary NC)
출원인 / 주소
  • Ericsson GE Mobile Communications Inc. (Research Triangle Park NC 02)
인용정보 피인용 횟수 : 79  인용 특허 : 0

초록 ▼

Demodulation of a CDMA downlink signal is performed by filtering correlations of the received signal with a known signature sequence. Unlike the conventional RAKE receiver, the filtering is not necessarily a FIR filter with coefficients equal to the conjugates of channel tap estimates. Instead, the

대표청구항 ▼

A receiver comprising: means for receiving a composite signal and producing complex samples of the received composite signal; means for correlating said complex samples to a known sequence to generate correlation values; means for selectively filtering said correlation values using filtering coeffic

이 특허를 인용한 특허 (79)

  1. Banister, Brian C.; Rick, Roland R., Accelerated message decoding.
    상세보기
  2. MacFarlane, Duncan L.; Dowling, Eric M., Active optical lattice filters.
    상세보기
  3. Takatori, Hiroshi; Lee, Chien-Hsin, Adaptive FIR filter and method.
    상세보기
  4. Dowling, Eric M.; Jani, Umesh G.; Wang, Zifei; Golden, Richard M., Adaptive multiple access interference suppression.
    상세보기
  5. Moshavi, Shimon; Ashkenazi, Rony; Ben-Eli, David; Yellin, Daniel, Adaptive signal covariance estimation for MMSE equalization.
    상세보기
  6. Birru,Dagnachew, Apparatus and method for constraining the value of feedback filter tap coefficients in a decision feedback equalizer.
    상세보기
  7. Jiang, Hong; Huang, Gang; Wilford, Paul, Apparatus and method for generating compressive measurements of video using spatial and temporal integration.
    상세보기
  8. Wang, Yi-Pin Eric; Bottomley, Gregory E.; Urabe, Kenzo, Apparatus and methods for finger delay selection in RAKE receivers.
    상세보기
  9. Yi-Pin Eric Wang ; Ali Khayrallah, Apparatus and methods for intereference cancellation in spread spectrum communications systems.
    상세보기
  10. Ottosson, Tony; Wang, Yi-Pin Eric; Bottomley, Gregory Edward, Apparatus and methods for selective correlation timing in rake receivers.
    상세보기
  11. Cairns, Douglas; Khayrallah, Ali S.; Bottomley, Gregory E., Apparatus, methods and computer program products for delay selection in a spread-spectrum receiver.
    상세보기
  12. Madkour, Mohamed F.; Gupta, Someshwar C.; Wang, Yi Pin Eric, Baseband interference canceling spread spectrum communications methods and apparatus.
    상세보기
  13. Masahiro Komatsu JP, CDMA receiving apparatus and method therefor.
    상세보기
  14. Ashkenazi, Rony; Yellin, Daniel; Moshavi, Shimon, Channel estimation by searching over channel response candidates having dominant components.
    상세보기
  15. Madhow Upamanyu ; Frank Colin D. ; Rasky Phillip D., Communication device and method for interference suppression in a DS-CDMA system.
    상세보기
  16. Visotsky Yevgeny ; Frank Colin D. ; Madhow Upamanyu ; Singh Rahul, Communication device and method for interference suppression using adaptive equalization in a spread spectrum communication system.
    상세보기
  17. Wei, Yongbin; Malladi, Durga Prasad; Blanz, Josef, Communication receiver with an adaptive equalizer.
    상세보기
  18. John M. Kowalski, Computationally parsimonious forward link receiver for DS-CDMA systems and method for same.
    상세보기
  19. Richard Hellberg SE, Correlator receiver.
    상세보기
  20. Yellin Daniel,ILX ; Shamai Shlomo,ILX, Cyclic adaptive receivers for DS-CDMA signals.
    상세보기
  21. Yellin, Daniel; Shamai (Shitz), Shlomo, Cyclic adaptive receivers for DS-CDMA signals.
    상세보기
  22. Yoshioka Kenji,JPX, Device and method for controlling frequency characteristic of a filter.
    상세보기
  23. Griniasty, Meir, Equalizer with adaptive noise loading.
    상세보기
  24. Griniasty, Meir, Equalizer with adaptive noise loading.
    상세보기
  25. MacFarlane,Duncan L., Filter for selectively processing optical and other signals.
    상세보기
  26. Essam Sourour ; Greg Bottomley ; David Barrow ; Rajaram Ramesh ; Clarence V. Roberts, Flexible sliding correlator for direct sequence spread spectrum systems.
    상세보기
  27. Sourour, Essam; Bottomley, Greg; Barrow, David; Ramesh, Rajaram; Roberts, Clarence V., Flexible sliding correlator for direct sequence spread spectrum systems.
    상세보기
  28. Griniasty, Meir, Hybrid equalizer.
    상세보기
  29. Bottomley, Gregory E.; Khayrallah, Ali S., Impairment correlation estimation in a spread spectrum system.
    상세보기
  30. Pan,Jung Lin; DiFazio,Robert A.; Tsai,Yingming, Joint channel equalizer interference canceller advanced receiver.
    상세보기
  31. Bottomley, Gregory E.; Cheng, Jung Fu, Linear turbo equalization using despread values.
    상세보기
  32. Dent, Paul W., Maximum likelihood rake receiver for use in a code division, multiple access wireless communication system.
    상세보기
  33. Ramesh Rajaram ; Chennakeshu Sandeep ; Bottomley Gregory E., Measurement techniques for diversity and inter-frequency mobile assisted handoff (MAHO).
    상세보기
  34. Jiang, Hong; Li, Chengbo; Wilford, Paul, Method and apparatus for arbitrary resolution video coding using compressive sampling measurements.
    상세보기
  35. Atarius,Roozbeh; Bottomley,Gregory; Dent,Paul W., Method and apparatus for automatic frequency control in a CDMA receiver.
    상세보기
  36. Nishimura,Naoaki; Okita,Tomokazu, Method and apparatus for detecting signals, and transmitting apparatus and receiving apparatus using the same.
    상세보기
  37. Yellin, Daniel, Method and apparatus for equalizing CDMA signals.
    상세보기
  38. Yellin, Daniel, Method and apparatus for equalizing CDMA signals.
    상세보기
  39. Bottomley, Gregory E., Method and apparatus for interference cancellation in a rake receiver.
    상세보기
  40. Gregory E. Bottomley, Method and apparatus for interference cancellation in a rake receiver.
    상세보기
  41. Cairns, Douglas A.; Bottomley, Gregory E.; Wang, Yi Pin Eric; Fulghum, Tracy L.; Jonsson, Elias, Method and apparatus for parameter estimation in a generalized rake receiver.
    상세보기
  42. Lenosky, Thomas J., Method and apparatus for reducing interference in an optical data stream using data-independent equalization.
    상세보기
  43. Cozzo, Carmela; Cairns, Douglas A.; Bottomley, Gregory E.; Khayrallah, Ali S.; Eriksson, Håkan B., Method and apparatus for scaling parameter estimation in parametric generalized rake receivers.
    상세보기
  44. Cairns, Douglas A.; Bottomley, Gregory E., Method and apparatus for selecting demodulation processing delays in a receiver.
    상세보기
  45. Dahlman,Erik; Wang,Yi Pin Eric; Dent,Paul W.; Bottomley,Gregory E.; Khayrallah,Ali; ��stberg,Christer, Method and apparatus for selective demodulation and decoding of communications signals.
    상세보기
  46. Jonsson,Elias; Ericsson,Anders, Method and apparatus for soft symbol scaling.
    상세보기
  47. Bottomley Gregory E. (Cary NC), Method and apparatus for spread spectrum channel estimation.
    상세보기
  48. Dent, Paul W., Method and apparatus for subtracting multiple rays of multiple interfering received signals.
    상세보기
  49. Jiang, Hong; Wilford, Paul A., Method and apparatus for super-resolution video coding using compressive sampling measurements.
    상세보기
  50. Barton, Stephen Kingsley; Heaton, Robert Barnard, Method and apparatus for synchronising receivers.
    상세보기
  51. Yellin Daniel,ILX, Method and device for quantizing the input to soft decoders.
    상세보기
  52. Yellin, Daniel, Method and device for quantizing the input to soft decoders.
    상세보기
  53. Haimi-Cohen, Raziel, Method and system for modifying compressive sensing block sizes for video monitoring using distance information.
    상세보기
  54. Bottomley, Gregory Edward, Methods and apparatus for interference cancellation using complex interference orthogonalization techniques.
    상세보기
  55. Haimi-Cohen, Raziel; Jiang, Hong, Methods and apparatuses for detecting anomalies in the compressed sensing domain.
    상세보기
  56. Haimi-Cohen, Raziel; Jiang, Hong, Methods and apparatuses for detecting anomalies using transform based compressed sensing matrices.
    상세보기
  57. Hui, Dennis; Zangi, Kambiz C.; Ramesh, Rajaram, Methods, receiver devices and systems for whitening a signal disturbance in a communication signal.
    상세보기
  58. Dent, Paul W., Multi-stage CDMA synchronization with parallel execution.
    상세보기
  59. Fukuoka, Masaru; Sumasu, Atsushi; Abeta, Sadayuki; Maeda, Noriyuki; Atarashi, Hiroyuki, Noise power estimation method and noise power estimation device.
    상세보기
  60. Fernandez Corbaton,Ivan Jesus; Smee,John; Jayaraman,Srikant, Non-parametric matched filter receiver for wireless communication systems.
    상세보기
  61. Dent, Paul W., Orthogonal spread-spectrum waveform generation with non-contiguous spectral occupancy for use in CDMA communications.
    상세보기
  62. Li,Jungsong; Ho,Yui Luen; Su,Jie, Radio receiver having an adaptive equalizer and method therefor.
    상세보기
  63. Wang, Yi-Pin Eric; Ottosson, Tony; Bottomley, Gregory Edward, Rake combining methods and apparatus using weighting factors derived from knowledge of spreading spectrum signal characteristics.
    상세보기
  64. Rademacher, Leo, Receiver and method for recovering data from spread spectrum radio signals.
    상세보기
  65. Hui, Dennis; Zangi, Kambiz C.; Ramesh, Rajarem, Receiver devices, systems and methods for receiving communication signals subject to colored noise.
    상세보기
  66. Jiang, Hong; Huang, Gang; Matthews, Kim N.; Wilford, Paul A., Resolution and focus enhancement.
    상세보기
  67. Dowling, Eric M.; Jani, Umesh; Golden, Richard M.; Wang, Zifei, Smart antenna multiuser detector.
    상세보기
  68. Dent, Paul W., Smoothing receiver channel estimates using spectral estimation.
    상세보기
  69. Wang,Xiaohui; Ericsson,Anders, Subtractive multipath delay detection.
    상세보기
  70. Garg, Rahul; Ramaswamy, Shobha; Devanahalli, Kiran; Sanpini, Satyanarayana, Systems and methods for an adaptive rake receiver.
    상세보기
  71. Dent, Paul W., Systems and methods for communicating spread spectrum signals using variable signal constellations.
    상세보기
  72. Jiang, Hong; Huang, Gang; Wilford, Paul Albin, Systems and methods for compressive sense imaging.
    상세보기
  73. Malladi, Durga Prasad; Blanz, Josef J.; Wei, Yongbin, Systems and methods for improving channel estimation.
    상세보기
  74. Malladi, Durga Prasad; Blanz, Josef; Wei, Yongbin, Systems and methods for improving channel estimation.
    상세보기
  75. Reznik,Alexander, Telescoping window based equalization.
    상세보기
  76. Yellin,Daniel, Unified MMSE equalization and multi-user detection approach for use in a CDMA system.
    상세보기
  77. Jiang, Hong; Matthews, Kim; Wilford, Paul; Li, Chengbo, Video coding using compressive measurements.
    상세보기
  78. Gupta, Deepnarayan, Wideband digital spectrometer.
    상세보기
  79. Gupta, Deepnarayan, Wideband digital spectrometer.
    상세보기

관련 콘텐츠

섹션별 컨텐츠 바로가기

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

AI-Helper 아이콘
AI-Helper
안녕하세요, AI-Helper입니다. 좌측 "선택된 텍스트"에서 텍스트를 선택하여 요약, 번역, 용어설명을 실행하세요.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.

선택된 텍스트

맨위로