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Apparatus for incorporating multiple data rates in an orthogonal direct sequence code division multiple access (ODS-CDMA) communications system

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04B-007/216
출원번호 US-0250845 (1999-02-17)
발명자 / 주소
  • Cox, Timothy F.
  • Natali, Francis D.
  • Ohlson, John E.
  • Talwar, Shilpa
출원인 / 주소
  • Stanford Telecommunications, Inc.
대리인 / 주소
    Zegeer, Jim
인용정보 피인용 횟수 : 48  인용 특허 : 8

초록

An ODS-CDMA communications system is disclosed with at least one hub station and a plurality of user terminals. Each user is assigned a code which is orthogonal to all of the other user codes. The orthogonal code period is chosen such that the code repeats an integer number of times in a data symbol

대표청구항

An ODS-CDMA communications system is disclosed with at least one hub station and a plurality of user terminals. Each user is assigned a code which is orthogonal to all of the other user codes. The orthogonal code period is chosen such that the code repeats an integer number of times in a data symbol

이 특허에 인용된 특허 (8)

  1. Natali Francis D. ; Ohlson John, Increased capacity in an OCDMA system for frequency isolation.
  2. Ling Fuyun (Hoffman Estates IL) Sexton Thomas A. (Schaumburg IL) Bruckert Gene (Arlington Heights IL), Method and apparatus for coherent communication reception in a spread-spectrum communication system.
  3. Dalekotzin Michael (Buffalo Grove IL), Method and apparatus for selecting a spreading code in a spectrum spread communication system.
  4. Wildauer Emmanuel M. ; Pender ; Jr. Michael J. ; Ohlson John E., Modulation method and system using constant envelope ODSCDMA with low out-of-band emissions for non-linear amplificatio.
  5. Magill David T. (Palo Alto CA) Bustamante Herman A. (Millbrae CA) Natali Francis D. (Pt. Townsend WA), Modulation system for spread spectrum CDMA communiction.
  6. John E. Ohlson ; Donald R. Martin, Orthogonal code division multiple access waveform format for use in satellite based cellular telecommunications.
  7. Rueth Timothy I. (Cardiff-by-the-Sea CA) Weaver ; Jr. Lindsay A. (San Diego CA) Gilhousen Klein S. (Bozeman MT), Power-of-two length pseudo-noise sequence generator with fast offset adjustment.
  8. Gilhousen Klein S. (San Diego CA) Jacobs Irwin M. (La Jolla CA) Padovani Roberto (San Diego CA) Weaver ; Jr. Lindsay A. (San Diego CA) Wheatley ; III Charles E. (Del Mar CA) Viterbi Andrew J. (La Jol, System and method for generating signal waveforms in a CDMA cellular telephone system.

이 특허를 인용한 특허 (48)

  1. Farley, Kevin L.; Proctor, James A., Alternate channel for carrying selected message types.
  2. Proctor, Jr., James A., Antenna control system and method.
  3. Proctor, Jr., James A., Antenna control system and method.
  4. Proctor, Jr., James A., Antenna control system and method.
  5. Proctor, Jr., James A., Antenna control system and method.
  6. Proctor, Jr., James A., Antenna control system and method.
  7. Feria,Ying J.; Chang,Donald C. D.; Chang,Ming U., Application of complex codes to maximize user link utilization.
  8. Becker, Donald W., Assignment modes for a shared communication medium.
  9. Ozluturk, Fatih M, Asymmetrical forward/reverse transmission bandwidth.
  10. Ozluturk, Fatih M., Asymmetrical forward/reverse transmission bandwidth.
  11. Ozluturk, Fatih M., Asymmetrical forward/reverse transmission bandwidth.
  12. Ozluturk, Fatih M., Asymmetrical forward/reverse transmission bandwidth.
  13. Becker, Donald W., Contention-based communications.
  14. Becker, Donald W., Default assignment of scheduled transmissions.
  15. Won, Seung Hwan; Ahn, Joon Kui; Yuk, Young Soo; Kim, Hak Seong, Downlink control channel allocation method in mobile communication system.
  16. Meredith, Sheldon; Cottrill, William; Hardie, Peter, Facilitating communication of radio resource quality to a mobile application.
  17. Proctor, James A.; Alapuranen, Pertti O., Method and apparatus for allowing soft handoff of a CDMA reverse link utilizing an orthogonal channel structure.
  18. Proctor, Jr., James A.; Alapuranen, Pertti O., Method and apparatus for allowing soft handoff of a CDMA reverse link utilizing an orthogonal channel structure.
  19. Proctor, Jr., James A.; Alapuranen, Pertti O., Method and apparatus for allowing soft handoff of a CDMA reverse link utilizing an orthogonal channel structure.
  20. Proctor, Jr.,James A.; Alapuranen,Pertti O., Method for allowing multi-user orthogonal and non-orthogonal interoperability of code channels.
  21. Proctor, Jr., James A., Method for compensating for multi-path of a CDMA reverse link utilizing an orthogonal channel structure.
  22. Ashikhmin, Alexei; Liu, Jung-Tao, Methods and apparatus for code division multiple access communication using code book that provides reduced peak-to-average power ratio.
  23. Proctor, Jr., James A., Methods, apparatuses and systems for selective transmission of traffic data using orthogonal sequences.
  24. Nelson, Jr., G. Rodney; Hoffmann, John E.; Rouphael, Antoine J.; Proctor, Jr., James A., Minimal maintenance link to support sychronization.
  25. Nelson, Jr., G. Rodney; Hoffmann, John E.; Rouphael, Antoine J.; Proctor, James A., Minimal maintenance link to support synchronization.
  26. Nelson, Jr., G. Rodney; Hoffmann, John E.; Rouphael, Antoine J.; Proctor, James A., Minimal maintenance link to support synchronization.
  27. Nelson, Jr., G. Rodney; Hoffmann, John E.; Rouphael, Antoine J.; Proctor, Jr., James A., Minimal maintenance link to support synchronization.
  28. Proctor, Jr., James A., Multi-detection of heartbeat to reduce error probability.
  29. Proctor, Jr., James A., Receiving and transmitting reverse link signals from subscriber units.
  30. Becker, Donald W., Request signal designs for multiple service types.
  31. Becker, Donald W., Reservation request improvements.
  32. Lyu, Dug In, Scrambling codes and channelization codes for multiple chip rate signals in CDMA cellular mobile radio communication system.
  33. Proctor, Jr., James A., Signaling for wireless communications.
  34. Proctor, Jr., James A., Signaling for wireless communications.
  35. Becker, Donald W., Successive scheduled requests for transmission.
  36. Proctor, Jr., James A., System and method for maintaining wireless channels over a reverse link of a CDMA wireless communication system.
  37. Tang, Yang, System and method for wireless communications.
  38. Cornett, John B.; Johnson, Kevin P.; Nelson, George R., Techniques for setting up traffic channels in a communications system.
  39. Cornett, Jr., John B.; Johnson, Kevin P.; Nelson, Jr., George Rodney, Techniques for setting up traffic channels in a communications system.
  40. Cornett, Jr.,John B.; Johnson,Kevin P.; Nelson, Jr.,George Rodney, Techniques for setting up traffic channels in a communications system.
  41. Proctor, Jr., James A., Transmittal of heartbeat signal at a lower level than heartbeat request.
  42. Proctor, James A., Use of correlation combination to achieve channel detection.
  43. Proctor, Jr., James A., Use of correlation combination to achieve channel detection.
  44. Proctor, James A.; Alapuranen, Pertti O., Use of orthogonal or near orthogonal codes in reverse link.
  45. Proctor, James A.; Alapuranen, Pertti O., Use of orthogonal or near orthogonal codes in reverse link.
  46. Proctor, Jr., James A.; Alapuranen, Pertti O., Use of orthogonal or near orthogonal codes in reverse link.
  47. Proctor, Jr., James A.; Alapuranen, Pertti O., Use of orthogonal or near orthogonal codes in reverse link.
  48. Proctor, Jr., James A.; Alapuranen, Pertti O., Use of orthogonal or near orthogonal codes in reverse link.
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