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Data transmission system and method using nQAM constellation with a control channel superimposed on a user data channel 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04J-011/00
  • H04J-003/12
  • H04L-023/02
  • H04L-005/12
출원번호 US-0147745 (1999-06-01)
우선권정보 SE-9603195 (1996-09-02)
국제출원번호 PCT/SE97/01458 (1997-09-01)
국제공개번호 WO98/10553 (1998-03-12)
발명자 / 주소
  • Isaksson, Mikael
  • Johansson, Magnus
  • Tonvall, Harry
  • Olsson, Lennart
  • Stefansson, Tomas
  • Ohman, Hans
  • Bahlenberg, Gunnar
  • Isaksson, Anders
  • Okvist, Goran
  • Ljunggren, Lis-Marie
  • Nordstrom, Tomas
  • Isak
출원인 / 주소
  • STMicroelectronics N.V.
대리인 / 주소
    Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
인용정보 피인용 횟수 : 48  인용 특허 : 11

초록 ▼

A transmission system using nQAM. A control channel is superimposed on a nQAM data channel. It is desirable to separate control channel data from user data without using a higher level protocol layer. In multi-carrier systems with variable bit-loading it is particularly desirable that the control ch

대표청구항 ▼

A transmission system using nQAM. A control channel is superimposed on a nQAM data channel. It is desirable to separate control channel data from user data without using a higher level protocol layer. In multi-carrier systems with variable bit-loading it is particularly desirable that the control ch

이 특허에 인용된 특허 (11)

  1. Betts William L. (St. Petersburg FL) Cohen Eran (Ocean NJ) Crupi Joseph A. (Safety Harbor FL) Gardenhour Cletus L. (St. Petersburgh FL) Weitzner Andrew T. (Belmar NJ) Werner Jean-Jacques (Holmdel NJ), Communication mode identification technique.
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  2. Chung Hong Y. (Eatontown NJ) Rauchwerk Michael D. (Holmdel NJ), Data communications with alternation of signaling constellations.
    상세보기
  3. Betts William L. (St. Petersburg FL) Bottoms Stanley (Seminole FL), Inband coding of secondary data.
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  4. Isaksson Mikael (Lulea SEX) Engstrom Bo (Lulea SEX), Method and apparatus for synchronization in digital transmisison systems of the OFDM type.
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  5. Armstrong Thomas R. (Clearwater FL), Modified QAM data point constellation for secondary channel signalling.
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  6. Wei Lee-Fang (Lincroft NJ), Multi-subcarrier modulation for HDTV transmission.
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  7. Wei Lee-Fang (Lincroft NJ), Multidimensional trellis-coded communication system.
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  8. Chung Hong Y. (Eatontown NJ) Wang Jin-Der (Ocean NJ) Wei Lee-Fang (Lincroft NJ), Multiplexed coded modulation with unequal error protection.
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  9. Laroia Rajiv (Silver Spring MD) Farvardin Nariman (Rockville MD) Tretter Steven A. (Silver Spring MD), Precoding scheme for transmitting data using optimally-shaped constellations over intersymbol-interference channels.
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  10. Betts William L., System and method for transmitting special marker symbols.
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  11. Wang Jin-Der, Transmission system for digital audio broadcasting.
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  3. Ma, Jianglei; Jia, Ming; Xu, Hua; Tong, Wen; Zhu, Peiying; Yu, Dong-Sheng; Zhang, Hang, Adaptive two-dimensional channel interpolation.
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  4. Greenfield, Richard; Irving, Clive; Peeters, Miguel, Apparatus and method for latency control in a communications system.
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  9. Edge, Stephen W., Locating a wireless local area network associated with a wireless wide area network.
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  18. Laroia, Rajiv; Fan, John L.; Li, Junyi, Method of transmitting pilot tones in a multi-sector cell, including null pilot tones, for generating channel quality indicators.
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  19. Hande, Prashanth; Das, Arnab; Li, Junyi; Rangan, Sundeep; Laroia, Rajiv, Methods and apparatus for broadcasting loading information corresponding to neighboring base stations.
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  20. Das, Arnab; Rangan, Sundeep, Methods and apparatus for communicating and/or using transmission power information.
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  23. Richardson, Tom; Jin, Hui; Li, Junyi; Parizhisky, Vladimir, Methods and apparatus for communicating control information.
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  24. Richardson, Tom; Jin, Hui; Li, Junyi; Parizhsky, Vladimir, Methods and apparatus for communicating control information.
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  25. Das, Arnab, Methods and apparatus for communicating information utilizing a plurality of dictionaries.
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  26. Das, Arnab; Laroia, Rajiv; Li, Junyi, Methods and apparatus for communicating transmission backlog information.
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  27. Das, Arnab; Laroia, Rajiv; Li, Junyi, Methods and apparatus for communicating transmission backlog information.
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  28. Das, Arnab; Rangan, Sundeep; Anigstein, Pablo Alejandro; Srinivasan, Murari, Methods and apparatus for communicating transmission backlog information.
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  33. Das, Arnab, Methods and apparatus for flexible reporting of control information.
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  37. Parizhsky, Vladimir; Laroia, Rajiv; Li, Junyi; Uppala, Sathyadev Venkata; Das, Arnab, Methods and apparatus of implementing and/or using a dedicated control channel.
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  38. Li, Junyi; Anigstein, Pablo Alejandro; Das, Arnab, Methods and apparatus related to custom control channel reporting formats.
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  39. Das, Arnab; Celebi, Samel; Hussain, Yunus, Methods and apparatus related to selecting a request group for a request report.
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  40. Das, Arnab; Park, Vincent; Hussain, Yunus; Celebi, Samel, Methods and apparatus related to selecting reporting alternative in a request report.
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  42. Laroia, Rajiv; Fan, John L.; Li, Junyi, Pilot signals for use in multi-sector cells.
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  47. Vareljian,Albert, Telephone line interface circuit and method.
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  48. Kim,Dong Kyu, Timing and frequency offset estimation scheme for OFDM systems by using an analytic tone.
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