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Enhanced access burst for random access channels in TDMA mobile satellite system

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04B-072/12
출원번호 US-0784873 (1997-01-16)
발명자 / 주소
  • Hatzipapafotiou Dimitrios
출원인 / 주소
  • Lockheed Martin Corporation
대리인 / 주소
    Meise
인용정보 피인용 횟수 : 36  인용 특허 : 6

초록

A spacecraft (12) cellular TDMA communications system (10) includes many user terminals (16), some of which may be movable. The spacecraft repeats transmissions by way of spot beams (20). A user initiates communication by synchronizing to the TDMA slots (210, 212), and transmits an access request si

대표청구항

[ What is claimed is:] [1.] A spacecraft TDMA cellular communications system, for communicating traffic signals between disparate terrestrial locations by way of successive temporally-interleaved signal bursts, said system comprising:a spacecraft including transmitting and receiving means, and an an

이 특허에 인용된 특허 (6)

  1. Sowles Kenneth L. (Chandler AZ) Gregg Ralph C. (Tempe AZ) Olds Keith A. (Mesa AZ), Apparatus for mobile unit acquisition in a satellite communication system and method therefor.
  2. Schiavoni Maryanne Theresa, Cellular spacecraft TDMA communications system with call interrupt coding system for maximizing traffic throughput.
  3. Ward Torbjorn (Montreal CAX), Method and apparatus for dynamically selecting the length of mobile station burst communications on the reverse digital.
  4. Lautier Alex (Nice FRX) Monrolin Jean L. (La Gaude FRX), Method and system for synchronizing a TDMA communication network comprising a satellite equipped with several directiona.
  5. Wiedeman Robert A. (Los Altos CA) Monte Paul A. (San Jose CA), Satellite communication system that is coupled to a terrestrial communication network and method.
  6. Chennakeshu Sandeep (Cary NC) Hassan Amer A. (Cary NC) Molnar Barbara (Cary NC) Molnar Karl (Cary NC) Ramesh Rajaram (Cary NC), Satellite diversity scheme.

이 특허를 인용한 특허 (36)

  1. Fomukong, Mundi; Chesney, Denzil Willoughby, Authorized location reporting mobile communication system.
  2. Iwamura, Mikio; Ishii, Minami; Harada, Atsushi, Base station, mobile station, synchronization control method, and IC chip.
  3. Iwamura, Mikio; Ishii, Minami; Harada, Atsushi, Base station, mobile station, synchronization control method, and IC chip.
  4. Parsa, Kourosh; Kanterakis, Emmanuel, Closed loop power control for common downlink transport channels.
  5. Kanterakis Emmanuel ; Parsa Kourosh, Common packet channel.
  6. Kanterakis Emmanuel ; Parsa Kourosh, Common packet channel.
  7. Kanterakis, Emmanuel; Parsa, Kourosh, Common packet channel.
  8. Kanterakis,Emmanuel; Parsa,Kourosh, Common packet channel.
  9. Kanterakis, Emmanuel; Parsa, Kourosh, Common packet channel with firm handoff.
  10. Kanterakis,Emmanuel; Parsa,Kourosh, Common packet channel with firm handoff.
  11. Seong Il Choi KR, Guard time reducing system in data communication from earth station to static orbit communication satellite and method thereof.
  12. Kanterakis Emmanuel ; Parsa Kourosh ; Yuen Elmer,HKX, Handoff with closed-loop power control.
  13. Parsa, Kourosh; Kanterakis, Emmanuel, Hybrid DSMA/CDMA (digital sense multiple access/code division multiple access) method with collision resolution for packet communications.
  14. Parsa,Kourosh; Kanterakis,Emmanuel, Hybrid DSMA/CDMA (digital sense multiple access/code division multiple access) method with collision resolution for packet communications.
  15. Fomukong, Mundi; Chesney, Denzil Willoughby, Location reporting satellite paging system with optional blocking of location reporting.
  16. Fomukong, Mundi; Chesney, Denzil Willoughby, Location reporting satellite paging system with privacy feature.
  17. Gregory G. Raleigh ; Vincent K. Jones ; Michael A. Pollack, MAC protocol employing multiple data rates.
  18. Raleigh, Gregory G.; Jones, Vincent K.; Pollack, Michael A., MAC protocol employing multiple data rates.
  19. Raleigh,Gregory G.; Jones, IV,Vincent K.; Pollack,Michael A., MAC protocol employing multiple data rates.
  20. Nefedov,Nikolai, Method and arrangement for multiplexing several users to the communication channels of a TDMA system.
  21. Bradshaw, Phillip, Method and system for synchronising stations within communications networks and stations for use therein.
  22. Wang Yi-Pin Eric ; Stark Wayne, Method for acquisition of spotbeam beacon frequency within a satellite communications system.
  23. Proctor, Jr., James A., Methods, apparatuses and systems for selective transmission of traffic data using orthogonal sequences.
  24. Shibasaki Kazunori,JPX, Mobile satellite communication system with quick retransmission determination function.
  25. Lo Wing ; Chang Jue, Piecewise coherent beamforming for satellite communications.
  26. Emmanuel Kanterakis ; Kourosh Parsa, Pre-data power control common packet channel.
  27. Kanterakis, Emmanuel; Parsa, Kourosh, Pre-data power control common packet channel.
  28. Kanterakis,Emmanuel; Parsa,Kourosh, Pre-data power control common packet channel.
  29. Kanterakis, Emmanuel; Parsa, Kourosh, RACH-ramp-up acknowledgement.
  30. Kanterakis, Emmanuel; Parsa, Kourosh, Rach ramp-up acknowledgement.
  31. Fishman Barry ; Justiss James E., Resource reservation for packet-switched multiple-path communication system.
  32. Coffin, III, Louis F., Satellite receiving system with transmodulating outdoor unit.
  33. Kourosh Parsa ; Emmanuel Kanterakis, Second level collision resolution for packet data communications.
  34. Fomukong, Mundi; Chesney, Denzil Willoughby, Updating a mobile device's location.
  35. Proctor, James A., Use of correlation combination to achieve channel detection.
  36. Proctor, Jr., James A., Use of correlation combination to achieve channel detection.
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