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Method and apparatus for handoff between a wireless local area network (WLAN) and a universal mobile telecommunication system (UMTS)

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04Q-007/20
출원번호 US-0294065 (2002-11-14)
발명자 / 주소
  • Shaheen,Kamel M.
  • Kiernan,Brian Gregory
출원인 / 주소
  • InterDigital Technology Corporation
대리인 / 주소
    Volpe and Koenig, P.C.
인용정보 피인용 횟수 : 17  인용 특허 : 8

초록

Apparatus and method for providing an automatic handoff process of a user equipment (UE) from either a wireless local area network (WLAN) to a universal mobile telecommunications system (UMTS) or from a UMTS to a WLAN. Handoffs may be initiated by the UE, based upon user preference, signal quality,

대표청구항

What is claimed is: 1. A user equipment (UE) initiated method for automated handoff of the UE from a first system to a second system, said first system being one of a universal mobile telecommunication system (UMTS) and a wireless local area network (WLAN) and the second system being a remaining on

이 특허에 인용된 특허 (8)

  1. Terry Si-Fong Cheng ; Ching Yao Huang, CDMA base station assisted soft handoff.
  2. Bridges, Jesse Bradley; Coursey, Cameron Kelly; Wuthnow, Mark Steven, Intelligent roaming system with over the air programming.
  3. Duran Jose M.,FRX ; Wang Xiaomei, Intersystem handover method and apparatus.
  4. Tiedemann ; Jr. Edward G. ; Chen Tao, Method and apparatus for performing mobile assisted hard handoff between communication systems.
  5. Yu I-Hsiang ; Borkowski Daniel G. ; Chao Kenneth, Method and apparatus for selecting a cellular system for communication with a cellular telephone in a roaming area.
  6. Ostroff Jeff L. ; Melgarejo Orestes G. ; Alterman Steven S., Method combining entries from multiple neighbor cell lists to obtain an updated list for a subscriber device.
  7. Innes Gordon Dingwall,GBX ; Bonner David,GBX, Mobile radio systems.
  8. Nordlund Peter,SEX, Radio communication system and method for analog and digital traffic channel allocation using a second higher threshold when allocating a digital channel.

이 특허를 인용한 특허 (17)

  1. Söderbacka, Lauri; Warsta, Ville, Enabling a content provider initiated content delivery via a specific radio access network.
  2. Liu, Kim Quo-Taht; Natarajan, Shriram; Devarasu, Ragunath; Stensrud, William R., Extension of a local area phone system to a wide area network.
  3. Robbins, Barry R.; Stensrud, William R.; Umpleby, Katherine White, Extension of a local area phone system to a wide area network.
  4. Marsh, Gene W.; Soledade, Carlos; Umpleby, Katherine W., Extension of a local area phone system to a wide area network with handoff features.
  5. Buckley, Adrian; Bumiller, George Baldwin, Generic access network (GAN) controller selection in PLMN environment.
  6. Montojo, Juan; Sankar, Hari, Method and apparatus for reliable signaling in wireless communication.
  7. Ozluturk, Fatih M., Method and system for facilitating inter-system handover for wireless communication.
  8. Olvera-Hernandez, Ulises; Carlton, Alan Gerald; Rudolf, Marian, Method and system for integrating media independent handovers.
  9. Holur, Balaji S.; Shannon, Michael L.; Davidson, Kenneth W., Method and system for service portability across disjoint wireless networks.
  10. Shaheen, Kamel M.; Terry, Stephen E.; Kiernan, Brian Gregory, Method and system for switching a radio access technology between wireless communication systems with a multi-mode wireless transmit/receive unit.
  11. Holur, Balaji S.; Shannon, Michael L.; Davidson, Kenneth W., Method and system for voice calls in a wireless local area network (WLAN).
  12. Lee, John C; Haigh, Geoffrey T; Hughes, David E; Cook, Andrew R J, Multi-network mobile communications systems and/or methods.
  13. Bachmann, Jens; Weniger, Kilian; Hakenberg, Rolf, Sleep-state for mobile terminal and service initiation for mobile terminals in sleep-state.
  14. Bachmann, Jens; Weniger, Kilian; Hakenberg, Rolf, Sleep-state for mobile terminal and service initiation for mobile terminals in sleep-state.
  15. Bachmann, Jens; Weniger, Kilian; Hakenberg, Rolf, Sleep-state for mobile terminal and service initiation for mobile terminals in sleep-state.
  16. Verma,Shaily; Bichot,Guillaume, Technique for managing quality of services levels when interworking a wireless local area network with a wireless telephony network.
  17. Watanabe, Koji, Wireless communication system, server and mobile station therefor.
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