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Target channel verification in a radiotelephone system 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04B-007/26
출원번호 US-0051593 (1993-04-23)
발명자 / 주소
  • Hulsebosch Thomas G. (Palatine IL)
출원인 / 주소
  • Motorola, Inc. (Schaumburg IL 02)
인용정보 피인용 횟수 : 29  인용 특허 : 0

초록

A radiotelephone system verifies the carrier/interference (C/I) of a selected target channel before handoff. The subscriber (125), communicating to a source base-station (130) on a source channel, measures the received signal strength indication (RSSI) of a target channel at a target base-station (1

대표청구항

A radiotelephone system having target channel verification before communication transfer, the radiotelephone system having a source base-station communicating with a subscriber unit on a source channel, the source base-station coupled to a plurality of target base-stations, the radiotelephone system

이 특허를 인용한 특허 (29)

  1. Souissi Slim ; Sawaya Samir A. ; Briancon Alain Charles Louis ; Cannon Gregory Lewis, Apparatus and method for selecting a transmitter for directed message delivery.
  2. Sato, Toshifumi, Cellular communication system, and mobile and base stations used in the same.
  3. Sato,Toshifumi, Cellular communication system, and mobile and base stations used in the same.
  4. Kazuyuki Sakoda JP; Mitsuhiro Suzuki JP, Communication terminal device, cellular radio communication system, and information communication method.
  5. Billon, Thierry, Device for allocating resources in a radiocommunication network.
  6. Kanerva Mikko,FIX ; Vainikka Jari,FIX ; Rasanen Juha,FIX ; Aalto Risto,FIX, Handover in a mobile communication system with adjustable error correction.
  7. Aalto Risto,FIX, Handover method and arrangement for a mobile communication system.
  8. Ljung Petter,SEX, Handover quality control in a mobile communications system.
  9. Aalto Risto,FIX ; Tuovinen Esa,FIX ; Halonen Timo,FIX, Increasing the capacity of a cellular radio network.
  10. Aalto,Risto, Increasing the capacity of a cellular radio network.
  11. Wang Robert Chuenlin, Method and apparatus for detecting a supervisory audio tone.
  12. Souissi Slim ; Sawaya Samir A. ; Dorenbosch Jheroen P. ; Briancon Al, Method and apparatus for dynamically grouping transmitters for message transmission in a communication system.
  13. Hulsebosch Thomas G., Method and apparatus for measuring idle channel quality in an RF frequency sharing environment.
  14. Tuutij채rvi,Mika, Method and apparatus for performing identification of measurement channels in TDMA E-OTD.
  15. Black Peter J., Method and apparatus for performing mobile station assisted hard handoff using off line searching.
  16. Padovani Roberto ; Quick Roy F., Method and apparatus for performing soft hand-off in a wireless communication system.
  17. Padovani,Roberto; Quick, Jr.,Roy Franklin, Method and apparatus for performing soft hand-off in a wireless communication system.
  18. Karlsson, Anders, Method and device for estimating a carrier-to-interference ratio in a radio communication system.
  19. Lee, Sung-Jin; Koo, Chang-Hoi; Son, Jung-Je; Son, Yeong-Moon; Kim, So-Hyun; Kang, Hyun-Jeong, Method for compulsorily performing handover in broadband wireless communication system.
  20. Lee, Sung-Jin; Koo, Chang-Hoi; Son, Jung-Je; Son, Yeong-Moon; Kim, So-Hyun; Kang, Hyun-Jeong, Method for compulsorily performing handover in broadband wireless communication system.
  21. Lee, Sung-Jin; Koo, Chang-Hoi; Son, Jung-Je; Son, Yeong-Moon; Kim, So-Hyun; Kang, Hyun-Jeong, Method for compulsorily performing handover in broadband wireless communication system.
  22. Kim, Kyoung Il; Salvarani, Alexandro Federico, Method of detecting and calculating external jammer signal power in communication systems.
  23. Persson,Bengt Yngve; Gudmundson,Bj?rn; Dent,Paul Wilkinson, Mobile assisted handover using CDMA.
  24. Lin, Harn-Jier; Marin, James S., Mobile station handoff with flex duplex channel assignment in a wireless communication network.
  25. Shellhammer, Stephen J.; Van Nee, Richard, Spectrum sensing of bluetooth using a sequence of energy detection measurements.
  26. Oswal, Anand K.; Malaviya, Viren K.; Waclawsky, John G.; Lindert, David P.; Iyer, Jayaraman R., Supporting communication sessions at a mobile node.
  27. Ishi Haruhiko,JPX, System for monitoring carriers of peripheral zones.
  28. Park, Kenneth James; Khoshnevis, Ahmad; Imamura, Kimihiko; Kowalski, John M.; Choudhury, Sayantan, Systems and methods for component carrier selection in a wireless communication system.
  29. Cheng, Terry Si-Fong; Huang, Ching; Koo, Yuen-Yin L.; Lin, Shen-De; Weaver, Carl Francis; Kuo, Wen-Yi, Triggering handdowns and handoffs of mobile stations between bordering cells of cellular wireless communication systems.
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