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Inter-frequency handoff evaluation method

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04Q-007/20
출원번호 US-0561833 (2000-04-28)
발명자 / 주소
  • Nelson, Eric Peter
출원인 / 주소
  • Lucent Technologies Inc.
인용정보 피인용 횟수 : 32  인용 특허 : 8

초록

An improved inter-frequency handoff trigger in a wireless communication system is disclosed. In an embodiment of the invention, a particular mobile station transmits a pilot strength measurement message to the base station. The base station subsequently determines the strongest border pilot and the

대표청구항

1. A method of evaluating need for handoff of a mobile station in a wireless communication system from a base station operating at a first frequency (hereafter “f1 base station”) to a base station operating at a second frequency (hereafter “f2 base station”), said method comprising the steps of:eval

이 특허에 인용된 특허 (8)

  1. Sarkar, Sandip; Tiedemann, Jr., Edward G.; Odenwalder, Joseph P., Handoff in a wireless communication system.
  2. Jou, Yu-Cheun; Wang, Jun; Rezaiifar, Ramin; Achour, Baaziz; Chen, Tao, Method and apparatus for generating pilot strength measurement messages.
  3. Tiedemann ; Jr. Edward G. ; Chen Tao, Method and apparatus for performing mobile assisted hard handoff between communication systems.
  4. Tiedemann ; Jr. Edward G. ; Chen Tao ; Wheatley ; III Charles E., Method and apparatus for performing mobile assisted hard handoff between communication systems.
  5. Chen, Tao; Tiedemann, Jr., Edward G.; Saints, Keith W., Method and apparatus for performing mobile station assisted hard handoff using error correction codes.
  6. Choi Eog Woo,KRX, Mobile communication system that supports soft handoff between switching stations and method for implementing handoff.
  7. Vieri Vanghi, Mobile station assisted forward link open loop power and rate control in a CDMA system.
  8. Han Jong Sun,KRX, Reverse link soft hand off method.

이 특허를 인용한 특허 (32)

  1. Babovic,Marko, Base station system and method for compensating traffic channel signal strength measurements in a cellular radio telecommunication network.
  2. Derakhshan,Fariborz; Jugl,Enrico; Schacht,Mirko, Cell selection and inter-frequency handover.
  3. Muirhead, Scott, Material handling apparatus having a reader/writer.
  4. Lundby, Stein A.; Razoumov, Leonid; Bao, Gang; Wei, Yongbin, Method and apparatus for determining a data rate in a high rate packet data wireless communications system.
  5. Lundby, Stein A.; Razoumov, Leonid; Bao, Gang, Method and apparatus for high rate packet data and low delay data transmissions.
  6. Padovani, Roberto; Bender, Paul E.; Black, Peter J.; Grob, Matthew S.; Hinderling, Jurg K.; Sindhushayana, Nagabhushana T.; Wheatley, III, Charles E., Method and apparatus for high rate packet data transmission.
  7. Padovani, Roberto; Bender, Paul E.; Black, Peter J.; Grob, Matthew S.; Hinderling, Jurg K.; Sindhushayana, Nagabhushana T.; Wheatley, III, Charles E., Method and apparatus for high rate packet data transmission.
  8. Padovani, Roberto; Bender, Paul E.; Black, Peter J.; Grob, Matthew S.; Hinderling, Jurg K.; Sindhushayana, Nagabhushana T.; Wheatley, III, Charles E., Method and apparatus for high rate packet data transmission.
  9. Padovani, Roberto; Bender, Paul E.; Black, Peter J.; Grob, Matthew S.; Hinderling, Jurg K.; Sindhushayana, Nagabhushana T.; Wheatley, III, Charles E., Method and apparatus for high rate packet data transmission.
  10. Padovani, Roberto; Bender, Paul E.; Black, Peter J.; Grob, Matthew S.; Hinderling, Jurg K.; Sindhushayana, Nagabhushana T.; Wheatley, III, Charles E., Method and apparatus for high rate packet data transmission.
  11. Padovani, Roberto; Bender, Paul E.; Black, Peter J.; Grob, Matthew S.; Hinderling, Jurg K.; Sindhushayana, Nagabhushana T.; Wheatley, III, Charles E., Method and apparatus for high rate packet data transmission.
  12. Padovani, Roberto; Bender, Paul E.; Black, Peter J.; Grob, Matthew S.; Hinderling, Jurg K.; Sindhushayana, Nagabhushana T.; Wheatley, III, Charles E., Method and apparatus for high rate packet data transmission.
  13. Padovani, Roberto; Bender, Paul E.; Black, Peter J.; Grob, Matthew S.; Hinderling, Jurg K.; Sindhushayana, Nagabhushana T.; Wheatley, III, Charles E., Method and apparatus for high rate packet data transmission.
  14. Padovani, Roberto; Bender, Paul E.; Black, Peter J.; Grob, Matthew S.; Hinderling, Jurg K.; Sindhushayana, Nagabhushana T.; Wheatley, III, Charles E., Method and apparatus for high rate packet data transmission.
  15. Padovani, Roberto; Bender, Paul E.; Black, Peter J.; Grob, Matthew S.; Hinderling, Jurg K.; Sindhushayana, Nagabhushana T.; Wheatley, III, Charles E., Method and apparatus for high rate packet data transmission.
  16. Padovani, Roberto; Bender, Paul E.; Black, Peter J.; Grob, Matthew S.; Hinderling, Jurg K.; Sindhushayana, Nagabhushana T.; Wheatley, III, Charles E., Method and apparatus for high rate packet data transmission.
  17. Padovani, Roberto; Bender, Paul E.; Black, Peter J.; Grob, Matthew S.; Hinderling, Jurg K.; Sindhushayana, Nagabhushana T.; Wheatley, III, Charles E., Method and apparatus for high rate packet data transmission.
  18. Padovani, Roberto; Bender, Paul E; Black, Peter J.; Grob, Matthew S.; Hinderling, Jurg K.; Sindhushayana, Nagabhushana T.; Wheatley, III, Charles E., Method and apparatus for high rate packet data transmission.
  19. Holtzman, Jack; Chen, Tao, Method and apparatus for predicting favored supplemental channel transmission slots using transmission power measurements of a fundamental channel.
  20. Gardner, William R.; Tiedemann, Jr., Edward G., Method and apparatus using a multi-carrier forward link in a wireless communication system.
  21. Narasimha,Murali; Hakansson,Urban, Method and device of selecting a communication system.
  22. Muirhead, Scott A. W., Pallet.
  23. Breit, Gregory Alan; Vermani, Sameer; Abraham, Santosh Paul; Sampath, Hemanth, Physical layer metrics to support adaptive station-dependent channel state information feedback rate in multi-user communication systems.
  24. Padovani, Roberto; Black, Peter J.; Sindhushayana, Nagabhushana T., Pilot reference transmission for a wireless communication system.
  25. Padovani, Roberto; Black, Peter John; Sindhushayana, Nagabhushana T., Pilot reference transmission for a wireless communication system.
  26. Muirhead, Scott A. W., RF-enabled pallet.
  27. Muirhead,Scott, RF-enabled pallet.
  28. Watanabe, Yoshikazu; Mizukoshi, Yasuhiro, Radio communication method, system for shortening handover process time via a radio communication control part, a pseudo radio communication control part, and handover control part in a mobile communication terminal.
  29. Muirhead, Scott A. W., Thermoformed platform having a communications device.
  30. Muirhead, Scott A. W., Thermoformed platform having a communications device.
  31. Muirhead, Scott Arthur William, Thermoformed platform having a communications device.
  32. Chen, Xuming; Shaikh, Imtiyaz, Utilization of multiple access points to support multiple applications and services.
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