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Base station based methods and apparatus for supporting break before make handoffs in a multi-carrier system

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04Q-007/20
  • H04Q-007/00
출원번호 US-0283676 (2005-11-21)
등록번호 US-7376425 (2008-05-20)
발명자 / 주소
  • Laroia,Rajiv
  • Li,Junyi
  • Lane,Frank A.
출원인 / 주소
  • Qualcomm Incorporated
대리인 / 주소
    Tam,Kam T.
인용정보 피인용 횟수 : 24  인용 특허 : 32

초록

A mobile communications device initiates a handoff from its current base station (BS) sector network attachment point to a new BS sector. The mobile sends a handoff request over its current wireless link to the current BS sector, which forwards the request to the new BS sector, e.g., via a network l

대표청구항

What is claimed is: 1. A method of operating a second network point of attachment in a communications system including a first network point of attachment, the first network point of attachment using signals in a first frequency band to communicate with a mobile node having a communications link wi

이 특허에 인용된 특허 (32)

  1. Bernstein Simon (Reston VA) Jurkevich Mark (Burtonsville MD), Adaptive VCP control in integrated services networks.
  2. Hall Scott M., Apparatus and method for transmitting beacon signals in a communication system.
  3. Gremmelmaier Ulrich,DEX, Arrangement and method for mobile communications having an IP link.
  4. Perinpanathan Nishanthan M. T.,CAX ; Frank Alan S.,CAX ; Taylor Paul Thomas,CAX, Call redirection methods in a packet based communications network.
  5. Chen,Tao; Bazarjani,Seyfollah; Tiedemann, Jr.,Edward G., Candidate system search and soft handoff between frequencies in a multi-carrier mobile communication system.
  6. Bernstein Simon (Reston VA) Jurkevich Mark (Burtonsville MD), Configurable composite data frame.
  7. Jurkevich Mark (Burtonsville MD) Bernstein Simon (Reston VA), Fixed interval composite framing in integrated services networks.
  8. Lin, Harn-Jier, Handoff in a cellular network.
  9. Moore Jay B. ; St. Clair Jon Quin, Method and apparatus for determining a need to handoff a mobile communication signal in a wireless communication system.
  10. Gilhousen Klein S. (Bozeman MT) Karmi Gadi (La Jolla CA) Tiedemann ; Jr. Edward G. (San Diego CA) Holcman Alejandro Raul (San Diego CA), Method and apparatus for handoff between different cellular communications systems.
  11. Weaver ; Jr. Lindsay A. ; Munsinger David B. ; Padovani Roberto ; Ziv Noam A. ; Karmi Gadi ; Gilhousen Klein S., Method and apparatus for hard handoff in a CDMA system.
  12. Tiedemann, Jr., Edward G.; Chen, Tao; Wheatley, III, Charles E., Method and apparatus for performing mobile assisted hard handoff between communication systems.
  13. Paul E. Bender, Method and apparatus for providing mobility within a network.
  14. Tiedemann ; Jr. Edward G. ; Terasawa Daisuke ; Sarkar Sandip ; Jou Yu-Cheun ; Odenwalder Joseph P. ; Shanbhag Abihijit ; Willenegger Serge,CHX, Method and system for handoff between an asynchronous CDMA base station and a synchronous CDMA base station.
  15. Thomas Lloyd Hiller ; Jin Wang, Method and system for support of overlapping IP addresses between an interworking function and a mobile IP foreign agent.
  16. Sasuta Michael D. (Mundelein IL) Wolfe John A. (Elgin IL), Method for maintaining audience continuity of a communication group call.
  17. Raith Alex K. (Durham NC), Method for transmitting broadcast information in a digital control channel.
  18. Rauhala, Kristian, Method of avoiding packet loss at a handover in a packet-based telecommunications network and handover method.
  19. Kent K. Leung ; Gopal K. Dommety, Methods and apparatus for providing mobility of a node that does not support mobility.
  20. O'Neill, Alan; Corson, M. Scott; Tsirtsis, George; Park, Vincent, Methods and apparatus for the utilization of core based nodes for state transfer.
  21. Leung Kent K., Mobile IP mobility agent standby protocol.
  22. Czaja Stash F. ; Jorri Sakari,FIX ; Niva Ilkka J.,FIX, Mobile assisted hard hand-off for a code division multiple access (CDMA) system.
  23. Shuen Pauline (Palo Alto CA), Mobile networking method and apparatus.
  24. Blakeney ; II Robert D. (San Diego CA) Karmi Gadi (San Diego CA) Tiedemann ; Jr. Edward G. (San Diego CA) Weaver ; Jr. Lindsay A. (San Diego CA), Mobile station assisted soft handoff in a CDMA cellular communications system.
  25. Ahmed Walid ; Doshi Bharat Tarachand ; Dravida Subrahmanyam ; Jiang Hong ; Rege Kiran M., Mobility management for a multimedia mobile network.
  26. Mooi Chuah ; Girish Rai, Optimum routing system.
  27. Lee Hee C. ; Basu Kalyan K. ; Zhou Shun Hua ; Yuan Wei ; Jiang Hua ; Yeh Edith ; Djoko Surnjani, Personal mobility and communication termination for users operating in a plurality of heterogeneous networks.
  28. Jurkevich Mark (Burtonsville MD) Bernstein Simon (Reston VA), Prioritizing attributes in integrated services networks.
  29. Huang Chia-Chi,TWX ; Huang Yung-Liang,TWX ; Sheu Chorng-Ren,TWX, Synchronization method and apparatus for guard interval-based OFDM signals.
  30. Guido M. Schuster ; Ikhlaq S. Sidhu ; Jerry J. Mahler ; Frederick D. Dean ; Jacek A. Grabiec ; Ismail Dalgic, System and method for providing user mobility services on a telephony network.
  31. Comroe Richard A. (Dundee IL) Zdunek Kenneth J. (Schaumburg IL), Trunked communication system with nationwide roaming capability.
  32. La Porta, Thomas F.; Murakami, Kazutaka; Ramjee, Ramachandran; Thuel, Sandra R.; Varadhan, Kannan, Two phase local mobility scheme for wireless access to packet based networks.

이 특허를 인용한 특허 (24)

  1. Laroia, Rajiv; Li, Junyi; Lane, Frank A., Base station base methods and apparatus for supporting break before making handoffs in a multi-carrier system.
  2. Takano, Hiroaki, Base station, communication system, mobile terminal, and relay device.
  3. Soriaga, Joseph B.; Lott, Christopher Gerard; Sun, Jing; Attar, Rashid Ahmed Akbar, Base stations and methods for facilitating dynamic simulcasting and de-simulcasting in a distributed antenna system.
  4. Suzuki, Toshihiro; Kobayashi, Motonari, Controller device, mobile terminal and mobile communication method.
  5. Segall, Edward Joseph; Issakov, Simon; Mia, Rashidus S., Cooperating receiver selection for UMTS wireless location.
  6. Segall, Edward Joseph; Issakov, Simon; Mia, Rashidus S., Cooperating receiver selection for UMTS wireless location.
  7. Segall, Edward Joseph; Issakov, Simon; Mia, Rashidus S., Cooperating receiver selection for UMTS wireless location.
  8. Soriaga, Joseph B.; Lott, Christopher Gerard; Sun, Jing; Yazdi, Kambiz Azarian; Attar, Rashid Ahmed Akbar; Gowaikar, Radhika; Ghosh, Donna, Distributed antenna systems and methods of wireless communications for facilitating simulcasting and de-simulcasting of downlink transmissions.
  9. Soriaga, Joseph B; Lott, Christopher Gerard; Sun, Jing; Yazdi, Kambiz Azarian; Attar, Rashid Ahmed Akbar; Gowaikar, Radhika; Ghosh, Donna, Distributed antenna systems and methods of wireless communications for facilitating simulcasting and de-simulcasting of downlink transmissions.
  10. Davies,Stephen William; Vanderveen,Michaela C, Facilitated security for handoff in wireless communications.
  11. Boncz, Lars; Olsson, Andreas, Method and a network node for controlling output uplink and downlink power levels in a mobile communications system.
  12. Jovanovic, Vladan, Method and apparatus for handoff in a wireless network.
  13. Shukla, Amit; Gandham, Shashidhar R.; Chang, Shih-Chun, Method for extending a heterogeneous MAC protocol to multi-channel systems.
  14. Laroia, Rajiv; Li, Junyi; Lane, Frank A., Methods and apparatus for performing handoffs in a multi-carrier wireless communications systems.
  15. Laroia, Rajiv; Lane, Frank A., Methods and apparatus of improving inter-sector and/or inter cell handoffs in a multi-carrier wireless communications system.
  16. Bhushan, Naga; Smee, John Edward; Ji, Tingfang; Sadek, Ahmed Kamel; Mukkavilli, Krishna Kiran; Soriaga, Joseph Binamira, Shared spectrum operation.
  17. Bhushan, Naga; Smee, John Edward; Ji, Tingfang; Sadek, Ahmed Kamel; Mukkavilli, Krishna Kiran; Soriaga, Joseph Binamira, Shared spectrum operation.
  18. Hyon, Tae-In; Yoo, Sang-Jo; Kim, Jae Moung; Chung, Jae Hak; Kim, Hyun Ju, Signalling method of detecting hidden incumbent system in cognitive radio environment and channel fractioning method used to enable the method.
  19. Conlin, Michael T.; Wendling, Jean-Hugues, Systems and methods for access control.
  20. Conlin, Michael T.; Wendling, Jean-Hugues, Systems and methods for access control.
  21. Conlin, Michael T.; Wendling, Jean-Hugues, Systems and methods for access control.
  22. Conlin, Michael T.; Wendling, Jean-Hugues, Systems and methods for access control.
  23. Qi, Emily H.; Walker, Jesse; Sood, Kapil, Techniques to manage roaming.
  24. Färber, Michael; Kroth, Norbert, Wireless communication after subscriber station is switched on.
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