$\require{mediawiki-texvc}$
  • 검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
  • 검색연산자
검색도움말
검색연산자 기능 검색시 예
() 우선순위가 가장 높은 연산자 예1) (나노 (기계 | machine))
공백 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 예1) (나노 기계)
예2) 나노 장영실
| 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 예1) (줄기세포 | 면역)
예2) 줄기세포 | 장영실
! NOT 이후에 있는 검색어가 포함된 문서는 제외 예1) (황금 !백금)
예2) !image
* 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 예) semi*
"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

통합검색

도움말도움말
상세검색 다국어 입력

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 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.

특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Dynamic sub-carrier assignment in OFDM systems

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H04Q-007/20   
미국특허분류(USC) 455/450; 455/509; 455/414.1; 455/464; 370/203; 370/208
출원번호 US-0672704 (2000-09-29)
발명자 / 주소
  • Hashem, Bassam M.
  • Steer, David G.
  • Periyalwar, Shalini S.
출원인 / 주소
  • Nortel Networks Limited
인용정보 피인용 횟수 : 80  인용 특허 : 9
초록
▼

A method and apparatus are provided for selecting and signaling the identity of sub-carriers to be used for transmission of data in a radio communication system, and for using other sub-carriers. A remote unit determines which sub-carriers are acceptable for use in data transmission by comparing the signal to interference ratio of each sub-carrier with a threshold. A base station transmits data over the acceptable sub-carriers at the optimum Link Mode or Link Modes. The base station may use some of the unacceptable sub-carriers for transmission of low se...

대표
청구항
▼

A method and apparatus are provided for selecting and signaling the identity of sub-carriers to be used for transmission of data in a radio communication system, and for using other sub-carriers. A remote unit determines which sub-carriers are acceptable for use in data transmission by comparing the signal to interference ratio of each sub-carrier with a threshold. A base station transmits data over the acceptable sub-carriers at the optimum Link Mode or Link Modes. The base station may use some of the unacceptable sub-carriers for transmission of low se...

이 특허에 인용된 특허 (9)

  1. Frodigh Carl Magnus,SEX ; Gudmundson Perols Leif Mikael,SEX, Adaptive channel allocation in a frequency division multiplexed system.
  2. Sudo, Hiroaki, Apparatus and method for OFDM communication.
  3. Heiskala Juha, Estimation of two propagation channels in OFDM.
  4. Kroeger Brian William ; Walden E. Glynn ; Eberl George Nicholas, Method and apparatus for AM digital broadcasting.
  5. McGibney Grant,CAX, OFDM timing and frequency recovery system.
  6. Kumar Derek D., Reference signal communication method and system.
  7. Baum Kevin Lynn ; Nadgauda Nikhil Shashank, Synchronous coherent orthogonal frequency division multiplexing system, method, software and device.
  8. Robert Louis Cupo ; Mohsen Sarraf ; Mojtaba Shariat ; Mohammad Hossein Zarrabizadeh, Time division multiplexed transmission of OFDM symbols.
  9. Bohnke, Ralf; Izumi, Seiichi, Transmission method and transmission apparatus for transmitting signals on the basis of a OFDM/TDMA-system with pilot symbols.

이 특허를 인용한 특허 (80)

  1. Dollard, Michael S., Adaptive control system for interference rejections in a wireless communications system.
  2. Sung, Sang-Hoon; Jeong, Joong-Ho; Park, Yun-Sang; Yoon, Soon-Young; Chang, Jae-Hwan, Apparatus and method for selective power control for an OFDM mobile communication system.
  3. Sawahashi, Mamoru, Apparatus for generating a set of radio parameters, a transmitter and a receiver.
  4. Nishio, Akihiko, Base station and radio communication method by a base station.
  5. Matsuzawa, Hiromu, Base station device and cell forming method.
  6. Hart, Brian; O'Sullivan, John D., Channel estimation in a multicarrier radio receiver.
  7. Hart,Brian; O'Sullivan,John D, Channel estimation in a multicarrier radio receiver.
  8. Murakami, Yutaka; Orihashi, Masayuki; Matsuoka, Akihiko; Nakagawa, Yoichi, Communication method, and transmitting apparatus and receiving apparatus using that communication method.
  9. Murakami, Yutaka; Orihashi, Masayuki; Matsuoka, Akihiko; Nakagawa, Yoichi, Communication method, and transmitting apparatus and receiving apparatus using that communication method.
  10. Murakami, Yutaka; Orihashi, Masayuki; Matsuoka, Akihiko; Nakagawa, Yoichi, Communication method, and transmitting apparatus and receiving apparatus using that communication method.
  11. Murakami, Yutaka; Orihashi, Masayuki; Matsuoka, Akihiko; Nakagawa, Yoichi, Communication method, and transmitting apparatus and receiving apparatus using that communication method.
  12. Murakami, Yutaka; Orihashi, Masayuki; Matsuoka, Akihiko; Nakagawa, Yoichi, Communication method, and transmitting apparatus and receiving apparatus using that communication method.
  13. Murakami, Yutaka; Orihashi, Masayuki; Matsuoka, Akihiko; Nakagawa, Yoichi, Communication method, transmitting device using the same, and receiving device using the same.
  14. Terry, Stephen E.; Dick, Stephen G.; Miller, James M.; Zeira, Eldad; Zeira, Ariela, Dynamic channel quality measurement procedure for adaptive modulation and coding techniques.
  15. Terry, Stephen E.; Dick, Stephen G.; Miller, James M.; Zeira, Eldad; Zeira, Ariela, Dynamic channel quality measurement procedure implemented by a base station for adaptive modulation and coding techniques.
  16. Terry,Stephen E.; Dick,Stephen G.; Miller,James M.; Zeira,Eldad; Zeira,Ariela, Dynamic channel quality measurement procedure implemented by user equipment for adaptive modulation and coding techniques.
  17. Terry, Stephen E.; Dick, Stephen G.; Miller, James M.; Zeira, Eldad M.; Zeira, Ariela, Dynamic channel quality measurement procedure implemented in a wireless digital communication system to prioritize the forwarding of downlink data.
  18. Terry, Stephen E.; Dick, Stephen G.; Miller, James M.; Zeira, Eldad M.; Zeira, Ariela, Dynamic channel quality measurement procedure implemented in a wireless digital communication system to prioritize the forwarding of downlink data.
  19. Terry, Stephen E.; Dick, Stephen G.; Miller, James M.; Zeira, Eldad M.; Zeira, Ariela, Dynamic channel quality measurement procedure implemented in a wireless digital communication system to prioritize the forwarding of downlink data.
  20. Terry, Stephen E.; Dick, Stephen G.; Miller, James M.; Zeira, Eldad M.; Zeira, Ariela, Dynamic channel quality measurement procedure implemented in a wireless digital communication system to prioritize the forwarding of downlink data.
  21. Terry,Stephen E.; Dick,Stephen G.; Miller,James M.; Zeira,Eldad; Zeira,Ariela, Dynamic channel quality measurement procedure implemented in a wireless digital communication system to prioritize the forwarding of downlink data.
  22. Terry,Stephen E.; Dick,Stephen G.; Miller,James M.; Zeira,Eldad; Zeira,Ariela, Dynamic channel quality measurement procedures for optimizing data transmission in a wireless digital communication system.
  23. Anikhindi, Santosh; Botterill, Iain, Interference mitigation in a wireless communication system.
  24. Anikhindi,Santosh; Botterill,Iain, Interference mitigation in a wireless communication system.
  25. Ahn,Chang; Sundararaman,Swaminathan; Desai,Ronak, Load balancing model for multilink frame relay.
  26. Sevindik, Volkan, Management of data transmission over radio-link encompassing multiple component carriers.
  27. Iacono, Ana Lucia; Chandra, Arty; Cha, Inhyok; Marinier, Paul; Roy, Vincent, Measurement support for a smart antenna in a wireless communication system.
  28. Pinheiro, Ana Lucia A.; Chandra, Arty; Cha, Inhyok; Marinier, Paul; Roy, Vincent, Measurement support for a smart antenna in a wireless communication system.
  29. Meiyappan, Palaniappan, Method and apparatus for adaptive carrier allocation and power control in multi-carrier communication systems.
  30. Khawand,Jean, Method and apparatus for maximizing a data rate of a wireless data communication system.
  31. Geer, James L., Method and apparatus for the detection of objects using electromagnetic wave attenuation patterns.
  32. Pawar, Hemanth B.; Srinivas, Shilpa Kowdley; Sitaram, Krishna; Liu, Chunmei, Method and system for component carrier selection based on content type.
  33. Sitaram, Krishna; Liu, Chunmei; Pawar, Hemanth B.; Kothari, Pratik, Method and system for managing carriers based on simultaneous voice and data communication.
  34. Pawar, Hemanth B.; Srinivas, Shilpa Kowdley; Sitaram, Krishna; Liu, Chunmei, Method and system for managing quantity of carriers in air interface connection based on type of content.
  35. Xing, Guanbin; Shen, Manyuan; Liu, Hui, Method and system for switching antenna and channel assignments in broadband wireless networks.
  36. Xing, Guanbin; Shen, Manyuan; Liu, Hui, Method and system for switching antenna and channel assignments in broadband wireless networks.
  37. Zuniga, Juan Carlos; Hunkeler, Teresa, Method for performing wireless switching.
  38. Zuniga, Juan Carlos; Hunkeler, Teresa J., Method for performing wireless switching.
  39. Zuniga, Juan Carlos; Hunkeler, Teresa Joanne, Method for performing wireless switching.
  40. Takano,Nahoko; Hamabe,Kojiro, Mobile communications system, base station, mobile station, threshold setting method and storage medium having program recorded therein.
  41. Peeters, Miguel, Multi-carrier communication system with sample rate pilot carrier and time division duplexing frame rate pilot carrier.
  42. Li, Xiaodong; Liu, Hui; Zhang, Wenzhong; Li, Kemin, Multi-carrier communications with adaptive cluster configuration and switching.
  43. Li, Xiaodong; Liu, Hui; Zhang, Wenzhong; Li, Kemin, Multi-carrier communications with adaptive cluster configuration and switching.
  44. Li, Xiaodong; Liu, Hui; Zhang, Wenzhong; Li, Kemin, Multi-carrier communications with adaptive cluster configuration and switching.
  45. Li, Xiaodong; Liu, Hui; Zhang, Wenzhong; Li, Kemin, Multi-carrier communications with adaptive cluster configuration and switching.
  46. Li, Xiaodong; Liu, Hui; Zhang, Wenzhong; Li, Kemin, Multi-carrier communications with adaptive cluster configuration and switching.
  47. Li, Xiaodong; Liu, Hui; Zhang, Wenzhong; Li, Kemin, Multi-carrier communications with adaptive cluster configuration and switching.
  48. Li, Xiaodong; Liu, Hui; Zhang, Wenzhong; Li, Kemin, Multi-carrier communications with adaptive cluster configuration and switching.
  49. Li, Xiaodong; Liu, Hui; Zhang, Wenzhong; Li, Kemin, Multi-carrier communications with adaptive cluster configuration and switching.
  50. Miyoshi,Kenichi, Multi-carrier transmission apparatus, multi-carrier reception apparatus, and multi-carrier radio communication method.
  51. Murakami, Yutaka; Orihashi, Masayuki; Matsuoka, Akihiko; Nakagawa, Yoichi, OFDM frame communication method and apparatus.
  52. Murakami, Yutaka; Orihashi, Masayuki; Matsuoka, Akihiko; Nakagawa, Yoichi, OFDM frame transmission method and apparatus.
  53. Murakami, Yutaka; Orihashi, Masayuki; Matsuoka, Akihiko; Nakagawa, Yoichi, OFDM frame transmission method and apparatus.
  54. Li, Xiaodong; Liu, Hui; Li, Kemin; Zhang, Wenzhong, OFDMA with adaptive subcarrier-cluster configuration and selective loading.
  55. Li, Xiaodong; Liu, Hui; Li, Kemin; Zhang, Wenzhong, OFDMA with adaptive subcarrier-cluster configuration and selective loading.
  56. Li, Xiaodong; Liu, Hui; Li, Kemin; Zhang, Wenzhong, OFDMA with adaptive subcarrier-cluster configuration and selective loading.
  57. Li, Xiaodong; Liu, Hui; Li, Kemin; Zhang, Wenzhong, OFDMA with adaptive subcarrier-cluster configuration and selective loading.
  58. Li, Xiaodong; Liu, Hui; Li, Kemin; Zhang, Wenzhong, OFDMA with adaptive subcarrier-cluster configuration and selective loading.
  59. Li, Xiaodong; Liu, Hui; Li, Kemin; Zhang, Wenzhong, OFDMA with adaptive subcarrier-cluster configuration and selective loading.
  60. Li, Xiaodong; Liu, Hui; Li, Kemin; Zhang, Wenzhong, OFDMA with adaptive subcarrier-cluster configuration and selective loading.
  61. Nishio, Akihiko; Hiramatsu, Katsuhiko, Radio communication apparatus and radio communication method.
  62. Nishio, Akihiko; Hiramatsu, Katsuhiko, Radio communication apparatus and radio communication method.
  63. Nishio, Akihiko; Hiramatsu, Katsuhiko, Radio communication apparatus and radio communication method.
  64. Nagaraja, Nagendra, Ranging and distance based spectrum selection in cognitive radio.
  65. Nagaraja, Nagendra, Ranging and distance based wireless link spectrum selection.
  66. Pawar, Hemanth B.; Srinivas, Shilpa K.; Sitaram, Krishna; Liu, Chunmei, Selecting between TDD-FDD carrier aggregation approaches based on type of communication.
  67. Currivan,Bruce J.; Kolze,Thomas J.; Howard,Daniel H.; Yousef,Nabil; Ngai,William, System and method for periodic noise avoidance in data transmission systems.
  68. Chu,Chung Cheung C., TFO-capable communication apparatus.
  69. Tirkkonen, Olav; Priotti, Paolo; Celentano, Ulrico, Transmission format indication and feedback in multi-carrier wireless communication systems.
  70. Tirkkonen, Olav; Priotti, Paolo; Celentano, Ulrico, Transmission format indication and feedback in multi-carrier wireless communication systems.
  71. Ito, Akira; Shimizu, Masahiko, Transmission method and transmission apparatus in an OFDM-CDMA communication system.
  72. Cheng, Jun; Nishio, Akihiko, Wireless communication apparatus and wireless communication method.
  73. Cheng, Jun; Nishio, Akihiko, Wireless communication apparatus and wireless communication method.
  74. Cheng, Jun; Nishio, Akihiko, Wireless communication apparatus and wireless communication method.
  75. Cheng, Jun; Nishio, Akihiko, Wireless communication apparatus and wireless communication method.
  76. Cheng, Jun; Nishio, Akihiko, Wireless communication apparatus and wireless communication method.
  77. Cheng, Jun; Nishio, Akihiko, Wireless communication apparatus and wireless communication method.
  78. Cheng, Jun; Nishio, Akihiko, Wireless communication apparatus and wireless communication method.
  79. Terry, Stephen E.; Dick, Stephen G.; Miller, James M.; Zeira, Eldad; Zeira, Ariela, Wireless communication method and apparatus for minimizing overhead signaling and optimizing radio resource utilization.
  80. Matsushita, Yoshiteru, Wireless transmitter, wireless receiver and wireless communication system.

IPC 상위 출원인