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Handoff in a wireless communication system 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04Q-007/00
출원번호 US-0372261 (1999-08-11)
발명자 / 주소
  • Sarkar, Sandip
  • Tiedemann, Jr., Edward G.
  • Odenwalder, Joseph P.
출원인 / 주소
  • Qualcomm Incorporated
대리인 / 주소
    Wadsworth, Philip R.BAker, Kent D.English, Sean
인용정보 피인용 횟수 : 39  인용 특허 : 11

초록

A mobile station transmits a plurality of channels including a pilot channel and at least one information channel. In the exemplary embodiment, the base station determines the adequacy of the transmission energy of the reverse link signal in accordance with the received energy of the reverse link pi

대표청구항

A mobile station transmits a plurality of channels including a pilot channel and at least one information channel. In the exemplary embodiment, the base station determines the adequacy of the transmission energy of the reverse link signal in accordance with the received energy of the reverse link pi

이 특허에 인용된 특허 (11)

  1. Chheda Ashvin ; Feeney Michael S. ; Jalali Ahmad, Base station power control during a soft hand-off.
  2. Jalali Ahmad ; Strawczynski Leo,CAX, Fast forward link power control in a code division multiple access system.
  3. Chen Tao, Method and apparatus for determining the rate of received data in a variable rate communication system.
  4. Kuo Wen-Yi ; Meyers Martin Howard ; Weaver Carl Francis, Method and apparatus for inter-frequency hand-off in wireless communication systems.
  5. Tiedemann ; Jr. Edward G. ; Chen Tao ; Wheatley ; III Charles E., Method and apparatus for performing mobile assisted hard handoff between communication systems.
  6. Black Peter J., Method and apparatus for performing mobile station assisted hard handoff using off line searching.
  7. Bernstein Neil E. ; Bernstein Xiao C. ; Kuo Wen-Yi ; Meyers Martin H. ; Wang Xiao ; Weaver Carl F., Methods and apparatus for interfrequency handoff in a wireless communication system.
  8. Czaja Stash F. ; Jorri Sakari,FIX ; Niva Ilkka J.,FIX, Mobile assisted hard hand-off for a code division multiple access (CDMA) system.
  9. Ruiz Everardo D. ; Henwood Andrew M., Mobile device assisted handoff system for code division multiple access and wideband code division multiple access networks.
  10. Li Kaiping ; Ong Chung-yen, Mobile station closed loop output power stability system for weak signal conditions.
  11. Chheda Ashvin ; Feeney Michael S. ; Jalali Ahmad, Process for switching between IS-95 forward power control and fast forward power control.

이 특허를 인용한 특허 (39)

  1. Farley, Kevin L.; Proctor, James A., Alternate channel for carrying selected message types.
  2. Farley, Kevin L.; Proctor, Jr., James A., Alternate channel for carrying selected message types.
  3. Proctor, Jr., James A., Antenna control system and method.
  4. Proctor, Jr., James A., Antenna control system and method.
  5. Proctor, Jr., James A., Antenna control system and method.
  6. Proctor, Jr., James A., Antenna control system and method.
  7. Proctor, Jr., James A., Antenna control system and method.
  8. Gorsuch, Thomas E.; Amalfitiano, Carlo, Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (CDMA) radio link.
  9. Kim,Jae Yoel; Lee,Hyun Woo; Yoon,Soon Young; Kang,Hee Won; Choi,Ho Kyu, Encoding apparatus and method in CDMA communication system.
  10. Proctor, Jr., James A., Fast acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system.
  11. Nelson, Eric Peter, Inter-frequency handoff evaluation method.
  12. Tiedemann, Jr., Edward G.; Glauser, Olivier, Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system.
  13. Tiedemann, Jr., Edward G.; Glauser, Olivier, Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system.
  14. Cudak, Mark; Ghosh, Amitava; Classon, Brian K.; Love, Robert T.; Jalloul, Louay; Nikides, Robert S., Method and apparatus for providing a distributed architecture digital wireless communication system.
  15. Odenwalder, Joseph P., Method and system for performing a handoff in a wireless communication system, such as a hard handoff.
  16. Odenwalder, Joseph P., Method and system for performing a handoff in a wireless communication system, such as a hard handoff.
  17. Odenwalder,Joseph P., Method and system for performing a handoff in a wireless communication system, such as a hard handoff.
  18. Grilli, Francesco; Willenegger, Serge; Tiedemann, Jr., Edward G., Method and system for performing handoff in wireless communication systems.
  19. Bybee,Michael F.; Gold,Jeffrey J.; Halcomb,Marc J., Methodology for mobile user terminals in broadband systems.
  20. Fingerhut,Howard W.; She,George, Methods and systems for selective broadcast enhancement.
  21. Proctor, Jr., James A., Methods, apparatuses and systems for selective transmission of traffic data using orthogonal sequences.
  22. Nelson, Jr., G. Rodney; Hoffmann, John E.; Rouphael, Antoine J.; Proctor, Jr., James A., Minimal maintenance link to support sychronization.
  23. Nelson, Jr., G. Rodney; Hoffmann, John E.; Rouphael, Antoine J.; Proctor, James A., Minimal maintenance link to support synchronization.
  24. Nelson, Jr., G. Rodney; Hoffmann, John E.; Rouphael, Antoine J.; Proctor, James A., Minimal maintenance link to support synchronization.
  25. Nelson, Jr., G. Rodney; Hoffmann, John E.; Rouphael, Antoine J.; Proctor, Jr., James A., Minimal maintenance link to support synchronization.
  26. Proctor, Jr., James A., Multi-detection of heartbeat to reduce error probability.
  27. Proctor, Jr., James A., Multi-detection of heartbeat to reduce error probability.
  28. O'Shea, Helena, Reducing handover frequency error.
  29. Proctor, Jr., James A., Signaling for wireless communications.
  30. Proctor, Jr., James A., Signaling for wireless communications.
  31. Shellhammer, Stephen J.; Van Nee, Richard, Spectrum sensing of bluetooth using a sequence of energy detection measurements.
  32. Proctor, Jr.,James A., System and method for controlling signal strength over a reverse link of a CDMA wireless communication system.
  33. Proctor, Jr., James A., System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system.
  34. Proctor, Jr., James A., System and method for maintaining wireless channels over a reverse link of a CDMA wireless communication system.
  35. Proctor, Jr., James A., System and method for maintaining wireless channels over a reverse link of a CDMA wireless communication system.
  36. Proctor, Jr., James A., System and method for maintaining wireless channels over a reverse link of a CDMA wireless communication system.
  37. Dunn,Douglas L.; Chang,Henry, System and method for minimizing voice packet loss during a wireless communications device candidate frequency search (CFS).
  38. Proctor, Jr., James A., Transmittal of heartbeat signal at a lower level than heartbeat request.
  39. Proctor, Jr., James A., Use of correlation combination to achieve channel detection.
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