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CDMA mobile communication method, system and mobile station apparatus

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04J-013/00
출원번호 US-0776554 (1997-01-31)
우선권정보 JP-0134437 (1995-05-31)
국제출원번호 PCT/JP96/01460 (1996-05-30)
§371/§102 date 19970131 (19970131)
국제공개번호 WO-9638999 (1996-11-05)
발명자 / 주소
  • Adachi Fumiyuki,JPX
출원인 / 주소
  • NTT Mobile Communications Network Inc., JPX
대리인 / 주소
    Brown Raysman Millstein Felder & Steiner LLP
인용정보 피인용 횟수 : 20  인용 특허 : 10

초록

A CDMA mobile communication system, which produces a time for monitoring peripheral base stations using different radio frequencies for carrying out hand-off between base stations using different radio frequencies without momentary cutoff of communication. A mobile station (504) of the CDMA mobile c

대표청구항

[ What is claimed is:] [1.] A CDMA mobile communications method for making transmission by providing a mobile station, a first base station to be connected to said mobile station via the radio using a first frequency, a second base station to be connected to said the mobile station via the radio usi

이 특허에 인용된 특허 (10)

  1. Karasawa Yoshio (Saitama JPX) Iwai Hisato (Saitama JPX), CDMA communication system.
  2. Umeda Narumi (Yokohama JPX) Matsumoto Tadashi (Yokosuka JPX) Douzono Youichi (Yokosuka JPX), Code division multiple access mobile communication system.
  3. Nakajima Nobuo (Yokohama JPX) Imamura Kenji (Yokohama JPX), Hand-off method and mobile station for spread spectrum mobile communication.
  4. Umeda Narumi (Yokohamashi JPX) Higashi Akihiro (Yokosukashi JPX) Hiroike Akira (Yokosukashi JPX) Kaiyama Akira (Yokohamashi JPX), Method and system for CDMA mobile communication.
  5. Gilhousen Klein S. (San Diego CA) Padovani Roberto (San Diego CA) Wheatley ; III Charles E. (Del Mar CA), Method and system for providing a soft handoff in communications in a CDMA cellular telephone system.
  6. Umeda Narumi (Yokohama JPX) Nishi Toyota (Fuchu JPX) Higashi Akihiro (Yokosuka JPX), Mobile station and cell selecting method for code division multiplex access mobile communication.
  7. Willars Per H. A. (Stockholm SEX) Grimlund Olof E. (Hasselby SEX) Ewerbring Lars-Magnus (Stockholm SEX), Non-continuous transmission for seamless handover in DS-CDMA systems.
  8. Takahashi Kenichi (Kawasaki JPX) Takeishi Minako (Kawasaki JPX) Onishi Hiroshi (Tokyo JPX), Signal processing circuit for spread spectrum communications.
  9. Menich Barry J. (Schaumburg IL) Kotzin Michael D. (Buffalo Grove IL), Signal processing in communication systems.
  10. Sawahashi Mamoru,JPX ; Adachi Fumiyuki,JPX, Sliding correlator used in CDMA systems to establish initial synchronization.

이 특허를 인용한 특허 (20)

  1. Alam, Muhammad Adeel; Deivasigamani, Giri Prassad; Vasudevan, Srinivasan; Nukala, Gaurav, Apparatus and methods for resolving incomplete message content in networks.
  2. Palenius, Torgny; Breschel, Michael, Blind rate detection in a multiplexed transmission system.
  3. Fujita, Roi, CDMA receiver.
  4. Dragan Boscovic FR; Doru Calin FR; Francois Goeusse FR; Philippe Sartori, Group handover in a cellular communications network.
  5. Nizri, Shlomo; Vakulenko, Michael; Levy, Atai; Nevo, Ron; Kolor, Sergio, Idle mode handling in a hybrid GSM/CDMA network.
  6. Nizri, Shlomo; Vakulenko, Michael; Levy, Atai; Nevo, Ron; Kolor, Sergio, Idle mode handling in a hybrid GSM/CDMA network.
  7. Cai, Ying; Chen, Xiang; Ding, Peilu; Jin, Xiaowei; Moorut, Ravindra P., Managing interference from femtocells.
  8. Tiedemann, Jr., Edward G.; Glauser, Olivier, Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system.
  9. Tiedemann, Jr., Edward G.; Glauser, Olivier, Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system.
  10. Odenwalder, Joseph P., Method and system for performing a handoff in a wireless communication system, such as a hard handoff.
  11. Odenwalder, Joseph P., Method and system for performing a handoff in a wireless communication system, such as a hard handoff.
  12. Grilli, Francesco; Willenegger, Serge; Tiedemann, Jr., Edward G., Method and system for performing handoff in wireless communication systems.
  13. Grilli,Francesco; Willenegger,Serge; Tiedemann, Jr.,Edward G., Method and system for performing handoff in wireless communication systems.
  14. Laroia, Rajiv; Li, Junyi; Corson, M. Scott, Methods and apparatus for wireless network connectivity.
  15. Laroia,Rajiv; Li,Junyi; Corson,M. Scott, Methods and apparatus for wireless network connectivity.
  16. Li, Junyi; Laroia, Rajiv; Corson, Mathew Scott, Methods and apparatus for wireless network connectivity.
  17. Cole,Terry L.; Smith,David W.; Schmidt,Rodney; Strongin,Geoffrey S.; Barnes,Brian C.; Barclay,Michael, Software modem for communicating data using encrypted data and unencrypted control codes.
  18. Shellhammer, Stephen J.; Van Nee, Richard, Spectrum sensing of bluetooth using a sequence of energy detection measurements.
  19. Abe Masami,JPX, Variable rate CDMA transmitter-receiver and transmission method.
  20. Obuchi, Kazuhisa; Yano, Tetsuya; Miyazaki, Shunji, Wireless base station and mobile station.
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