Zoeken Afbeeldingen Maps Play YouTube Nieuws Gmail Drive Meer »
Inloggen
Gebruikers van een schermlezer: klik op deze link voor de toegankelijkheidsmodus. De toegankelijkheidsmodus beschikt over dezelfde essentiŽle functies, maar werkt beter met je lezer.

Patenten

  1. Geavanceerd zoeken naar patenten
PublicatienummerUS20100087189 A1
PublicatietypeAanvraag
AanvraagnummerUS 12/633,502
Publicatiedatum8 april 2010
Aanvraagdatum8 dec 2009
Prioriteitsdatum31 juli 2002
Ook gepubliceerd alsCA2493742A1, CN1672440A, CN100356800C, DE60308194D1, DE60308194T2, EP1527630A2, EP1527630A4, EP1527630B1, US7050800, US7630709, US20040192291, US20060205403, WO2004012374A2, WO2004012374A3
Publicatienummer12633502, 633502, US 2010/0087189 A1, US 2010/087189 A1, US 20100087189 A1, US 20100087189A1, US 2010087189 A1, US 2010087189A1, US-A1-20100087189, US-A1-2010087189, US2010/0087189A1, US2010/087189A1, US20100087189 A1, US20100087189A1, US2010087189 A1, US2010087189A1
UitvindersKamel M. Shaheen, Leonid Kazakevich
Oorspronkelijke patenteigenaarInterdigital Technology Corporation
Citatie exporterenBiBTeX, EndNote, RefMan
Externe links: USPTO, USPTO-toewijzing, Espacenet
Format converter for wlan-umts interworking employing umts air interface
US 20100087189 A1
Samenvatting
A format converter for use with a universal mobile telecommunications system (UMTS) having a transceiver, a wireless local area network (WLAN) having an access point (AP) and a wireless terminal, for providing access to the UMTS by the terminal. The format converter comprises a WLAN transceiver for sending and receiving messages to and from the AP; a UMTS transceiver for sending and receiving messages to and from the transceiver in the UMTS; and a translator for translating WLAN messages to UMTS format and UMTS messages to WLAN format.
Afbeeldingen(4)
Previous page
Next page
Claims(7)
1. An apparatus for delivering universal mobile telecommunication system (UMTS) formatted messages to a dual mode user equipment (UE) associated with a wireless local area network (WLAN) access point, the apparatus comprising:
a format converter configured to receive UMTS formatted messages from a UMTS network which uses UMTS signaling, and to translate the received UMTS formatted messages to a WLAN format; and
a WLAN interface configured to communicate the translated messages to the UE over a WLAN air interface.
2. The apparatus of claim 1, configured to register the UE with a UMTS base station responsive to the UE registering with the WLAN access point.
3. The apparatus of claim 2, further configured to provide a UMTS packet switched (PS) UMTS attach to the UMTS base station.
4. The apparatus of claim 1, wherein the format converter is further configured to translate WLAN formatted messages received from the UE over the WLAN air interface to a UMTS format, and to forward the translated message to the UMTS network over the UMTS air interface.
5. The apparatus of claim 1, wherein the messages are paging messages.
6. The apparatus of claim 1, wherein the messages are short message service (SMS) messages.
7. The apparatus of claim 1, wherein the messages are multimedia message service (MMS) messages.
Beschrijving
    CROSS REFERENCE TO RELATED APPLICATIONS
  • [0001]
    This application is a continuation of U.S. patent application Ser. No. 11/433,958, filed on May 15, 2006 which is a continuation of U.S. application Ser. No. 10/319,180, filed on Dec. 13, 2002, which issued as U.S. Pat. No. 7,050,800 on May 13, 2006 which claims priority from U.S. Provisional Application No. 60/399,787; filed on Jul. 31, 2002 which are incorporated by reference as if fully set forth herein.
  • FIELD OF INVENTION
  • [0002]
    The present invention relates to wireless communications. More particularly the invention deals with WLAN-UMTS interworking.
  • BACKGROUND
  • [0003]
    Subscribers, such as mobile stations (UEs), to a universal mobile telecommunication system (UMTS) which are operating under a wireless local area network (WLAN) environment and desire to access the UMTS, can incur a significant increase in costs when accessing UMTSs in those areas where the UMTS system access would be of substantial cost.
  • SUMMARY
  • [0004]
    The present invention is a format converter provided with a transceiver acting as a UMTS radio front-end for a UMTS subscriber operating in a WLAN environment. The interface between the UMTS system and the end user (UE) is obtained through the WLAN interface.
  • [0005]
    The WLAN system converts received UMTS messages and/or traffic for pre-registered users into a format suitable for WLAN transmission to be delivered to users operating in WLAN environments. In addition, the WLAN converts transmitted messages and traffic flows into UMTS formats which is then transmitted to the UMTS system by way of the UMTS transceiver supporting the WLAN system. The WLAN users gain access to the UMTS system through a UMTS air interface employing a translator.
  • BRIEF DESCRIPTION OF THE FIGURES
  • [0006]
    The present invention will be understood from a consideration of the accompanying description and drawings in which like elements are designated by like numerals and, wherein:
  • [0007]
    FIG. 1 is a diagram of a UMTS system underlayed by a WLAN system.
  • [0008]
    FIGS. 2 and 3 are diagrams showing the message utilized for the WLAN-UMTS interworking in accordance with the apparatus and methods of the present invention.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • [0009]
    FIG. 1 shows an arrangement 10 useful in explaining the interworking between a UMTS system 12 and WLAN system 14. The arrangement of FIG. 1 will be described in conjunction with the technique for delivery of UMTS based services when a mobile station such as a remote terminal is served by the WLAN system.
  • [0010]
    Making reference to FIG. 2, and, where appropriate, FIG. 1, there is shown an arrangement similar to that of FIG. 1.
  • [0011]
    Only one mobile station 24 is shown for purposes of simplicity, it being understood that a plurality of such mobile terminals are serviced by the WLAN 14. Although the mobile station remote terminal (UE) 24 may also be a dual-mode terminal capable of communicating with a WLAN and a UMTS, for purposes of the present invention, a WLAN-capable terminal 24 is utilized.
  • [0012]
    User terminal (UE) 24, through its WLAN capability 24 a, registers with WLAN 14, by communicating with an access point (AP) of the WLAN (see FIG. 1) at step S1. WLAN 14, at step S2, then registers the user identification (ID) for the UMTS service watch, communicating with UMTS transceiver 18. UMTS transceiver 18 is tuned for any services addressed to registered users' identifications (IDs). When a UMTS service, such as a page, short message service (SMS), multimedia message service (MMS) or the like is to be delivered, UMTS 12 transfers such a service, in the example given a page message, at step S3, the page message being delivered to UMTS transceiver 18. UMTS transceiver 18, at step S4, typically from a radio tower 26, transmits the page message over UMTS air interface 28 to a receiving radio tower 30, to format converter 16 which, at step S5, converts the present (UMTS) format into a WLAN message format and, at step S6, communicates the page message, in WLAN message format, to WLAN 14. WLAN 14, at step S7, delivers the page message to mobile terminal 24. An acknowledgement is relayed from terminal 24, at step S8, to WLAN 14, the acknowledgement being transferred to format converter 16 at step S9 and from there to UMTS transceiver 18, at step S10, and finally to UMTS 12, at step S11.
  • [0013]
    FIG. 3 shows a terminal 24 similar to that shown in FIG. 2, which, through its WLAN capability 24 a, registers with WLAN 14, at step S1. The WLAN 14, at step S2, forwards the user registration to format converter 16 which, at step S3, changes the format into a UMTS message format and, at step S4, provides a UMTS package switched (PS) UMTS attachment directed to the UMTS transceiver 18. UMTS transceiver 18 transfers the UMTS PS attached to UMTS 12, at step S5.
  • [0014]
    The PS attach completed message is transferred from UMTS 12 to UMTS transceiver 18, at step S6, and from UMTS transceiver 18 to format converter 16, at step S7. Format converter 16, at step S8, changes the format of the
  • [0015]
    PS attach into a WLAN message format and, at step S9, conveys the message to WLAN 14 which, at step S10, provides the message to mobile terminal 24. Acknowledgement from terminal 24 to WLAN 14 occurs at step S11, from WLAN 14 to format converter 16, at step S12, from format converter 16 to UMTS transceiver 18, at step S13 and the UMTS transceiver 18 to UMTS 12, at step S14, thereby completing the acknowledgment.
Patentcitaties
Geciteerd patent Aanvraagdatum Publicatiedatum Aanvrager Titel
US6424818 *24 juni 199823 juli 2002Ntt Mobile Communications Network, Inc.Communication system using relayed radio channels
US6529728 *10 feb 20004 maart 2003Motorola, Inc.Method and apparatus in a wireless communication system for selectively providing information specific to a location
US6687243 *29 sept 19993 feb 2004Cisco Technology, Inc.Method and apparatus for integrated wireless communications in private and public network environments
US6763012 *21 juli 200013 juli 2004Telefonaktiebolaget Lm Ericsson (Publ)Mobile terminal and method of providing a network-to-network connection
US6795437 *17 okt 200021 sept 2004Nokia CorporationArrangement for interconnecting communications networks
US7035242 *22 nov 200225 april 2006Interdigital Technology CorporationMethod and apparatus for delivery of universal mobile telecommunications system (UMTS) based unidirectional services over a wireless local area network (WLAN)
US7050800 *13 dec 200223 mei 2006Interdigital Technology CorporationMethod and apparatus for WLAN-UMTS interworking employing UMTS air interface
US7173924 *21 juni 20046 feb 2007Interdigital Technology CorporationMethod and apparatus for delivery of universal mobile telecommunications systems (UMTS) based unidirectional services over a wireless local area network (WLAN)
US7630709 *15 mei 20068 dec 2009Interdigital Technology CorporationFormat converter for WLAN-UMTS interworking employing UMTS air interface
US20030118015 *20 dec 200126 juni 2003Magnus GunnarssonLocation based notification of wlan availability via wireless communication network
US20030134650 *17 jan 200217 juli 2003Rangamani SundarMethod, system and apparatus for internetworking a mobile station to operate in a WWAN environment and in a WLAN environment with PBX services
US20030139180 *19 april 200224 juli 2003Mcintosh Chris P.Private cellular network with a public network interface and a wireless local area network extension
US20030171112 *30 aug 200111 sept 2003Siemens AktiengesellschaftGeneric wlan architecture
US20040001468 *28 juni 20021 jan 2004Guillaume BichotTechnique for interworking a wlan with a wireless telephony network
US20050254469 *14 april 200317 nov 2005Shaily VermaWireless local area network (wlan) as a public land mobile network for wlan/telecommunications system interworking
US20060050667 *29 mei 20039 maart 2006Shaily VermaWlan as a logical support node for hybrid coupling in an interworking between wlan and a mobile communication system
Classificaties
Classificatie in de VS455/426.1, 455/466, 370/466
Internationale classificatieH04W92/02, H04B7/26, H04W8/00, H04L12/28
CoŲperatieve classificatieH04W92/02
Europese classificatieH04W92/02