WO2005089249A2 - Method and system for switching a radio access technology between wireless communicaiton systems with a multi-mode wireless transmit/receive unit - Google Patents

Method and system for switching a radio access technology between wireless communicaiton systems with a multi-mode wireless transmit/receive unit Download PDF

Info

Publication number
WO2005089249A2
WO2005089249A2 PCT/US2005/008315 US2005008315W WO2005089249A2 WO 2005089249 A2 WO2005089249 A2 WO 2005089249A2 US 2005008315 W US2005008315 W US 2005008315W WO 2005089249 A2 WO2005089249 A2 WO 2005089249A2
Authority
WO
WIPO (PCT)
Prior art keywords
wireless communication
communication system
wtru
inter
working
Prior art date
Application number
PCT/US2005/008315
Other languages
French (fr)
Other versions
WO2005089249A3 (en
Inventor
Kamel M. Shaheen
Stephen E. Terry
Brian Gregory Kiernan
Original Assignee
Interdigital Technology Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to KR1020137002850A priority Critical patent/KR20130028788A/en
Priority to AT05725469T priority patent/ATE437545T1/en
Priority to CN2005800078999A priority patent/CN1934880B/en
Priority to DE602005015556T priority patent/DE602005015556D1/en
Application filed by Interdigital Technology Corporation filed Critical Interdigital Technology Corporation
Priority to KR1020067021187A priority patent/KR100888994B1/en
Priority to KR1020107008978A priority patent/KR101150553B1/en
Priority to KR1020077007384A priority patent/KR101300454B1/en
Priority to CA002559268A priority patent/CA2559268A1/en
Priority to JP2007503083A priority patent/JP4642069B2/en
Priority to MXPA06010238A priority patent/MXPA06010238A/en
Priority to EP05725469A priority patent/EP1723814B1/en
Priority to DK05725469T priority patent/DK1723814T3/en
Publication of WO2005089249A2 publication Critical patent/WO2005089249A2/en
Publication of WO2005089249A3 publication Critical patent/WO2005089249A3/en
Priority to NO20064569A priority patent/NO20064569L/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/005—Control or signalling for completing the hand-off involving radio access media independent information, e.g. MIH [Media independent Hand-off]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1446—Reselecting a network or an air interface over a different radio air interface technology wherein at least one of the networks is unlicensed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/04—Reselecting a cell layer in multi-layered cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements

Definitions

  • the present invention is related to a wireless communication system. More particularly, the present invention is a method and system for switching a radio access technology (RAT) between wireless communication systems being connected to each other while implementing different RATs with a multi-mode wireless transmit/receive unit (WTRU).
  • RAT radio access technology
  • WTRU multi-mode wireless transmit/receive unit
  • I-WLAN Inter-working WLAN
  • SSIDs service set identifiers
  • the scanning of SSIDs can be done either passively or actively.
  • passive scanning the WTRU observes information broadcast from each WLAN and determines its availability according to the signal strength.
  • active scanning the WTRU transmits a probe request containing a specific WLAN SSID and waits for confirmation of the availability from that WLAN.
  • WLAN that provides access to UMTS based services.
  • SSID home public land mobile network
  • PLMN home public land mobile network
  • UMTS based services can be a problem due to the large number of WLAN networks (SSIDs) that the WTRU must choose from and the ease of using similar SSIDs by disruptive operators in order to direct the traffic toward their networks. Accordingly, there is a need for a method and system for providing an indication of WLANs (SSIDs) that provide access to UMTS based services.
  • SSIDs WLAN networks
  • the present invention is a method and system for switching a radio access technology (RAT) between wireless communication systems connected to each other while implementing different RATs with a multi-mode WTRU.
  • a plurality of wireless communication systems are deployed with overlapping coverage areas wherein each wireless communication system implements different RATs and are connected to each other such that a service that is provided by one wireless communication system may be provided through the other wireless communication system.
  • Each wireless communication system transmits an indication of the existence of an inter-working wireless communication system in a coverage area of each wireless communication system.
  • the WTRU receives the indication and information regarding the inter- working wireless communication system.
  • the WTRU then initiates a handoff to the inter-working wireless communication system using the received information, whereby the WTRU continues to receive the same services that the WTRU receives from the currently connected wireless communication system through the inter-working wireless communication system.
  • the present invention helps reduce the time taken by the multi-mode WTRU to select and authenticate the inter-working wireless communication system.
  • Figure 1 is a block diagram of a wireless communication system in accordance with the present invention.
  • FIG. 2 is a flow diagram of a process for switching a radio access technology (RAT) in accordance with the present invention.
  • RAT radio access technology
  • FIG. 3 is a signaling diagram of a process for exchanging messages among a WTRU, a UMTS terrestrial radio access network (UTRAN), and a WLAN for handoff from the UTRAN to the WLAN in accordance with the present invention.
  • UTRAN UMTS terrestrial radio access network
  • WTRU includes but is not limited to a user equipment, a mobile station, a fixed or mobile subscriber unit, a pager, or any other type of device capable of operating in a wireless environment.
  • base station and “access point (AP)” include but are not limited to a Node-B, a site controller or any other type of interfacing device in a wireless environment.
  • FIG. 1 is a block diagram of a wireless communication system 100 in accordance with the present invention.
  • the system 100 comprises at least two different types of wireless communication networks 110, 120 implementing different radio access technologies (RATs).
  • RATs radio access technologies
  • one type of wireless network is a UMTS terrestrial radio access network (UTRAN) (see UTRAN cell 110) preferably operating under third generation partnership project (3GPP) standards and the other type of wireless network is a WLAN 120 preferably operating under IEEE 802.11 standards.
  • 3GPP third generation partnership project
  • WLAN 120 preferably operating under IEEE 802.11 standards.
  • UTRAN UMTS terrestrial radio access network
  • a WLAN 120 preferably operating under IEEE 802.11 standards.
  • a UTRAN typically includes a plurality of cells, as known to those skilled in the art.
  • Coverage areas of the wireless communication systems 110, 120 are overlapping with respect to each other.
  • the coverage area of the WLAN 120 typically falls within the larger coverage area of a UTRAN cell 110.
  • the WLAN 120 is connected to the UTRAN cell 110 so that the services provided within the UTRAN cell 10 may be forwarded to a multi-mode WTRU 102 through the WLAN 120.
  • the WLAN 120 may therefore also be referred to as an I-WLAN, as explained above.
  • a multi- mode WTRU 102 located in the overlapping area may access both types of wireless communication networks simultaneously, and may receive services provided by one network through the other network.
  • the UTRAN cell 110 sends an indication of the existence of any I-WLANs, or alternatively a list of service set identifiers (SSIDs) of the I-WLANs, located in the UTRAN cell 110 to the WTRU 102.
  • the indication or the list of SSIDs may be transmitted as desired. For example, they may be broadcast via a broadcast control channel (BCCH) or may be sent via a dedicated control channel (DCCH).
  • BCCH broadcast control channel
  • DCCH dedicated control channel
  • WTRUs may, but are not required to, provide their WLAN capability (i.e.
  • WTRUs are preferably required to provide their WLAN capability upon connecting to the UTRAN cell 110 or upon establishment of a radio bearer.
  • the indication may be transmitted as desired, but is preferably transmitted over the cell's 110 broadcast control channel (BCCH) or over a dedicated control channel (DCCH).
  • the WTRU 102 receives the indication and if a predetermined criteria for inter-system handoff (i.e. a predetermined criteria for handing over a WTRU 102 from the UTRAN cell 110 to the WLAN 120) is satisfied, the WTRU 102 requests the list of SSIDs from the UTRAN cell 110.
  • a predetermined criteria for inter-system handoff i.e. a predetermined criteria for handing over a WTRU 102 from the UTRAN cell 110 to the WLAN 120
  • the predetermined criteria may be any type of criteria and the evaluation of whether to actually perform an inter-system handoff may be evaluated by the WTRU 102 or by any of the network components of the network from which a handoff may occur, which in this case is a UTRAN.
  • the WTRU 102 receives the SSID list, the SSIDs are used, passively or actively, for scanning, association, and authentication of an appropriate AP within the I-WLAN 120.
  • This scheme ensures that the WTRU 102 accesses the right WLAN AP that provides a connection to the UTRAN cell 110 and its 3GPP based services.
  • the WTRU 102 is handed-off to the I-WLAN 120 and begins operating therein.
  • the WTRU 102 may request the list of SSIDs prior to evaluation of the inter-system handoff criteria in order to confirm whether there is an appropriate AP available prior to performing the evaluation.
  • the system 100 operates as mentioned above, but in this embodiment instead of first transmitting an indication of the existence of any I-WLANs within the UTRAN cell 110, the UTRAN cell 110 simply transmits the list of SSIDs. This may provide enhance performance where the number of SSIDs is not too high. Whether to implement the first or second embodiment is operator preference.
  • FIG. 2 is a flow diagram of a process 200 for switching a RAT in accordance with the present invention.
  • a plurality of wireless communication systems are deployed with overlapping coverage areas.
  • Each wireless communication system implements a different RAT and are configured such that a service that is provided by one wireless communication system may be provided through the other wireless communication system.
  • Each wireless communication system transmits an indication of the existence of an inter-working wireless communication system, optionally along with information of the alternative wireless communication system (including an identifier, frequency, etc), which implements a different RAT within the coverage area of each wireless communication system (step 202).
  • the indication and/or the information may be broadcast to WTRUs or may be sent via a dedicated channel for the WTRUs.
  • the WTRU receives the indication and/or the information through a currently connected wireless communication system (i.e. the wireless communication system to which the WTRU is currently connected) (step 204).
  • the indication and/or the information may be transmitted in response to a request message for the information or a capability report from the WTRU.
  • the currently connected wireless communication system sends an indication of availability of the inter-working wireless communication system and/or the information about the inter-working wireless communication system to the WTRU.
  • the indication and/or the information may be transmitted via a DCCH to the WTRU.
  • it is determined whether to initiate a handoff to the inter-working wireless communication system (step 206). As mentioned above, this determination may be made at the network or at the WTRU and may be based on any predetermined criteria, as desired.
  • the handoff may be initiated by a user's request or may be initiated autonomously based on service requirements.
  • the WTRU may display the availability of the inter-working wireless communication system on its display screen or provide an alarm alerting the user of the same. If it is determined to handoff the WTRU to the inter-working wireless communication system and if only the indication has been sent, the WTRU requests the information regarding the inter-working wireless communication system and receives it from the currently connected wireless communication system (step 208). If the information has been transmitted along with the indication or is simply sent without any indication, step 208 is skipped. The WTRU then initiates a handoff procedure using the received information (step 210).
  • the information may be SSIDs of the I-WLANs, and optionally may further include a corresponding PLMN ID and the corresponding coordinates, (i.e., location), of each SSID.
  • the WTRU initiates active or passive scanning for the identified WLANs after receiving the SSIDs of the I-WLANs.
  • the WLAN scanning may be limited to WLANs identified by the received SSIDs.
  • Association with a particular WLAN AP may be based on channel quality measurements. If channel quality measurements from all WLANs are under a predefined threshold, the initial UTRAN connection is maintained. If an acceptable WLAN AP is found, the UTRAN may be notified of the cell change over the DCCH of the cell change. Connection security may be enabled by information such as wired equivalent privacy (WEP) information.
  • WEP wired equivalent privacy
  • the WTRU continues to scan for APs of common SSIDs of WLAN association and disassociation procedures. If an acceptable AP is not found, the WTRU may either scan for an alternate WLAN identified by a known SSID, or revert back to the UTRAN connection. In this case, an inter RAT cell change indication may be signaled.
  • FIG. 3 is a signaling diagram of an exemplary process 300 for exchanging messages among a WTRU 102, a UTRAN cell 110, and a WLAN 120 for handoff from the UTRAN cell 110 to the WLAN 120 in accordance with the present invention.
  • the UTRAN cell 110 transmits an indication of availability of any I-WLANs, (and/or optionally along with a list of SSIDs of available WLANs) (step 302).
  • the transmission may be triggered by a report from the WTRU 102 indicating WLAN capability of the WTRU 102.
  • the WTRU 102 receives the I- WLAN availability indication and/or list of SSIDs (step 304). In the case that only the indication is transmitted, the WTRU 102 sends a request for SSIDs of WLANs (step 306). In the case that the SSID list is transmitted along with the indication or the list is sent without any indication, steps 306-310 are omitted.
  • the UTRAN cell 110 retrieves the SSIDs information (step 308).
  • the UTRAN cell 110 transmits the list of WLAN SSIDs and optionally their associated locations and PLMN ID (step 310).
  • the WTRU 102 After receiving the list of SSIDs, the WTRU 102 stores them in a memory and scans, either actively or passively, for an appropriate AP using the list (step 312). If the WTRU 102 is within the range of the WLAN coverage, the WTRU 102 initiates an I-WLAN selection (step 312). The WTRU 102 initiates a WLAN service with the selected WLAN (step 314).
  • the WLAN 120 authenticates the WTRU 102 and may allocate a new IP address, if necessary, which typically depends on the type of inter-working scheme being implemented, as explained in more detail below (step 316). After authentication is completed at step 318, access to the WLAN service is granted for the WTRU 102 (step 320).
  • the I-WLAN may be connected to the 3GPP system via a core network, (i.e., packet date gateway (PDG)), or via the UTRAN as a pipe.
  • PDG packet date gateway
  • no new IP address is assigned in case of I-WLAN reselection, (handoff from the 3GPP system to I-WLAN).
  • PDG packet date gateway
  • new procedures are used to allocate an IP address to the WTRU operating in the I-WLAN. These procedures are different than those used in the 3GPP system and thus may result in the assignment of a new IP address for the WTRU.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Small-Scale Networks (AREA)
  • Transceivers (AREA)
  • Radio Relay Systems (AREA)

Abstract

A method and system for switching a radio access technology RAT between two wireless communication systems (110and 120) with overlapping coverage area. RATwith multi-mode WTRU (102) can provide the same service in both networks. Each wireless system transmits an indication of inter-working wireless communication system. WTRU can receive the indication and initiate a handoff to the inter-working system to continue to receive the same service.

Description

[0001] METHOD AND SYSTEM FOR SWITCHING A RADIO ACCESS TECHNOLOGY BETWEEN WIRELESS COMMUNICATION SYSTEMS WITH A MULTI-MODE WIRELESS TRANSMIT/RECEIVE UNIT
[0002] FIELD OF INVENTION
[0003] The present invention is related to a wireless communication system. More particularly, the present invention is a method and system for switching a radio access technology (RAT) between wireless communication systems being connected to each other while implementing different RATs with a multi-mode wireless transmit/receive unit (WTRU).
[0004] BACKGROUND
[0005] Universal mobile telecommunication systems (UMTS) and wireless local area network (WLAN) technologies are widely used in current wireless communication systems. Since the coverage areas of UMTS and WLANs are often overlapped, an inter-networking of UMTS and WLAN networks has been developed. An inter- working WLAN (I-WLAN) is a WLAN with a connection to a UMTS core network so that the services provided by the UMTS may be forwarded through the I-WLAN.
[0006] Currently, the network selection of an I-WLAN requires that a
WTRU scan for available WLAN systems using their service set identifiers (SSIDs). The scanning of SSIDs can be done either passively or actively. In passive scanning, the WTRU observes information broadcast from each WLAN and determines its availability according to the signal strength. In active scanning, the WTRU transmits a probe request containing a specific WLAN SSID and waits for confirmation of the availability from that WLAN. [0007] These techniques, however, do not provide any indication of the
WLAN (SSID) that provides access to UMTS based services. Several solutions have been devised including broadcasting of the home public land mobile network (PLMN) identification over the WLAN broadcast channel. However, such techniques are vulnerable to spoofing, (disruptive WLAN operators may broadcast the same SSIDs and PLMN ID), since WLAN SSIDs are not unique. [0008] Therefore, the selection of a UMTS based I-WLAN for connecting to
UMTS based services can be a problem due to the large number of WLAN networks (SSIDs) that the WTRU must choose from and the ease of using similar SSIDs by disruptive operators in order to direct the traffic toward their networks. Accordingly, there is a need for a method and system for providing an indication of WLANs (SSIDs) that provide access to UMTS based services.
[0009] SUMMARY
[0010] The present invention is a method and system for switching a radio access technology (RAT) between wireless communication systems connected to each other while implementing different RATs with a multi-mode WTRU. A plurality of wireless communication systems are deployed with overlapping coverage areas wherein each wireless communication system implements different RATs and are connected to each other such that a service that is provided by one wireless communication system may be provided through the other wireless communication system. Each wireless communication system transmits an indication of the existence of an inter-working wireless communication system in a coverage area of each wireless communication system. The WTRU receives the indication and information regarding the inter- working wireless communication system. The WTRU then initiates a handoff to the inter-working wireless communication system using the received information, whereby the WTRU continues to receive the same services that the WTRU receives from the currently connected wireless communication system through the inter-working wireless communication system. The present invention helps reduce the time taken by the multi-mode WTRU to select and authenticate the inter-working wireless communication system.
[0011] BRIEF DESCRIPTION OF THE DRAWINGS
[0012] A more detailed understanding of the invention may be had from the following description of a preferred embodiment, given by way of example and to be understood in conjunction with the accompanying drawing wherein:
[0013] Figure 1 is a block diagram of a wireless communication system in accordance with the present invention;
[0014] Figure 2 is a flow diagram of a process for switching a radio access technology (RAT) in accordance with the present invention; and
[0015] Figure 3 is a signaling diagram of a process for exchanging messages among a WTRU, a UMTS terrestrial radio access network (UTRAN), and a WLAN for handoff from the UTRAN to the WLAN in accordance with the present invention.
[0016] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0017] Hereafter, the terminology "WTRU" includes but is not limited to a user equipment, a mobile station, a fixed or mobile subscriber unit, a pager, or any other type of device capable of operating in a wireless environment. When referred to hereafter, the terminologies "base station" and "access point (AP)" include but are not limited to a Node-B, a site controller or any other type of interfacing device in a wireless environment.
[0018] Figure 1 is a block diagram of a wireless communication system 100 in accordance with the present invention. The system 100 comprises at least two different types of wireless communication networks 110, 120 implementing different radio access technologies (RATs). For example, as shown in Figure 1, one type of wireless network is a UMTS terrestrial radio access network (UTRAN) (see UTRAN cell 110) preferably operating under third generation partnership project (3GPP) standards and the other type of wireless network is a WLAN 120 preferably operating under IEEE 802.11 standards. For purposes of describing the present invention, only one UTRAN cell 110 is shown. However, it is noted that, a UTRAN typically includes a plurality of cells, as known to those skilled in the art.
[0019] For convenience, the present invention is described with reference to a UTRAN and a WLAN. However, it should be noted that it is obvious to those skilled in the art that the present invention may be applied to any type of wireless communication system and further that there could be more than two different types of wireless communication networks.
[0020] Coverage areas of the wireless communication systems 110, 120 are overlapping with respect to each other. In a UTRAN- WLAN example, as is used herein, the coverage area of the WLAN 120 typically falls within the larger coverage area of a UTRAN cell 110. The WLAN 120 is connected to the UTRAN cell 110 so that the services provided within the UTRAN cell 10 may be forwarded to a multi-mode WTRU 102 through the WLAN 120. The WLAN 120 may therefore also be referred to as an I-WLAN, as explained above. A multi- mode WTRU 102 located in the overlapping area may access both types of wireless communication networks simultaneously, and may receive services provided by one network through the other network.
[0021] In accordance with the present invention, the UTRAN cell 110 sends an indication of the existence of any I-WLANs, or alternatively a list of service set identifiers (SSIDs) of the I-WLANs, located in the UTRAN cell 110 to the WTRU 102. The indication or the list of SSIDs may be transmitted as desired. For example, they may be broadcast via a broadcast control channel (BCCH) or may be sent via a dedicated control channel (DCCH). Where a system 100 is configured to transmit the indication or list over BCCHs, WTRUs may, but are not required to, provide their WLAN capability (i.e. whether or not they are capable of operating in a WLAN) upon connecting to the UTRAN cell 110 or upon establishment of a radio bearer. Where a system 100 is configured to transmit the indication or list over DCCHs, WTRUs are preferably required to provide their WLAN capability upon connecting to the UTRAN cell 110 or upon establishment of a radio bearer.
[0022] In accordance with a first embodiment, only an indication of the existence of any I-WLANs within the UTRAN cell 110 is transmitted. As mentioned above, the indication may be transmitted as desired, but is preferably transmitted over the cell's 110 broadcast control channel (BCCH) or over a dedicated control channel (DCCH). The WTRU 102 receives the indication and if a predetermined criteria for inter-system handoff (i.e. a predetermined criteria for handing over a WTRU 102 from the UTRAN cell 110 to the WLAN 120) is satisfied, the WTRU 102 requests the list of SSIDs from the UTRAN cell 110. It should be noted, of course, that the predetermined criteria may be any type of criteria and the evaluation of whether to actually perform an inter-system handoff may be evaluated by the WTRU 102 or by any of the network components of the network from which a handoff may occur, which in this case is a UTRAN.
[0023] Once the WTRU 102 receives the SSID list, the SSIDs are used, passively or actively, for scanning, association, and authentication of an appropriate AP within the I-WLAN 120. This scheme ensures that the WTRU 102 accesses the right WLAN AP that provides a connection to the UTRAN cell 110 and its 3GPP based services. Where the inter-system handoff criteria is met and there is an appropriate AP within the I-WLAN 120 to handoff to, the WTRU 102 is handed-off to the I-WLAN 120 and begins operating therein. [0024] As an alternative, the WTRU 102 may request the list of SSIDs prior to evaluation of the inter-system handoff criteria in order to confirm whether there is an appropriate AP available prior to performing the evaluation. [0025] In accordance with a second embodiment, the system 100 operates as mentioned above, but in this embodiment instead of first transmitting an indication of the existence of any I-WLANs within the UTRAN cell 110, the UTRAN cell 110 simply transmits the list of SSIDs. This may provide enhance performance where the number of SSIDs is not too high. Whether to implement the first or second embodiment is operator preference.
[0026] Figure 2 is a flow diagram of a process 200 for switching a RAT in accordance with the present invention. A plurality of wireless communication systems are deployed with overlapping coverage areas. Each wireless communication system implements a different RAT and are configured such that a service that is provided by one wireless communication system may be provided through the other wireless communication system.
[0027] Each wireless communication system transmits an indication of the existence of an inter-working wireless communication system, optionally along with information of the alternative wireless communication system (including an identifier, frequency, etc), which implements a different RAT within the coverage area of each wireless communication system (step 202). The indication and/or the information may be broadcast to WTRUs or may be sent via a dedicated channel for the WTRUs. The WTRU receives the indication and/or the information through a currently connected wireless communication system (i.e. the wireless communication system to which the WTRU is currently connected) (step 204).
[0028] Alternatively, the indication and/or the information may be transmitted in response to a request message for the information or a capability report from the WTRU. In response, the currently connected wireless communication system sends an indication of availability of the inter-working wireless communication system and/or the information about the inter-working wireless communication system to the WTRU. In such case, the indication and/or the information may be transmitted via a DCCH to the WTRU. [0029] After receiving the indication and/or the information, it is determined whether to initiate a handoff to the inter-working wireless communication system (step 206). As mentioned above, this determination may be made at the network or at the WTRU and may be based on any predetermined criteria, as desired. The handoff may be initiated by a user's request or may be initiated autonomously based on service requirements. The WTRU may display the availability of the inter-working wireless communication system on its display screen or provide an alarm alerting the user of the same. If it is determined to handoff the WTRU to the inter-working wireless communication system and if only the indication has been sent, the WTRU requests the information regarding the inter-working wireless communication system and receives it from the currently connected wireless communication system (step 208). If the information has been transmitted along with the indication or is simply sent without any indication, step 208 is skipped. The WTRU then initiates a handoff procedure using the received information (step 210). [0030] In the context of a UTRAN-WLAN example as used herein, the information may be SSIDs of the I-WLANs, and optionally may further include a corresponding PLMN ID and the corresponding coordinates, (i.e., location), of each SSID. The WTRU initiates active or passive scanning for the identified WLANs after receiving the SSIDs of the I-WLANs. The WLAN scanning may be limited to WLANs identified by the received SSIDs.
[0031] Association with a particular WLAN AP may be based on channel quality measurements. If channel quality measurements from all WLANs are under a predefined threshold, the initial UTRAN connection is maintained. If an acceptable WLAN AP is found, the UTRAN may be notified of the cell change over the DCCH of the cell change. Connection security may be enabled by information such as wired equivalent privacy (WEP) information. The WTRU continues to scan for APs of common SSIDs of WLAN association and disassociation procedures. If an acceptable AP is not found, the WTRU may either scan for an alternate WLAN identified by a known SSID, or revert back to the UTRAN connection. In this case, an inter RAT cell change indication may be signaled. The choice to switch RATs may either be autonomous based on quality measurements within a predefined threshold or manually controlled by user input. After the RAT cell change, the WTRU continues to receive the same services that the WTRU receives from the currently connected wireless communication system through the alternative wireless communication system. [0032] Figure 3 is a signaling diagram of an exemplary process 300 for exchanging messages among a WTRU 102, a UTRAN cell 110, and a WLAN 120 for handoff from the UTRAN cell 110 to the WLAN 120 in accordance with the present invention. The UTRAN cell 110 transmits an indication of availability of any I-WLANs, (and/or optionally along with a list of SSIDs of available WLANs) (step 302). The transmission may be triggered by a report from the WTRU 102 indicating WLAN capability of the WTRU 102. The WTRU 102 receives the I- WLAN availability indication and/or list of SSIDs (step 304). In the case that only the indication is transmitted, the WTRU 102 sends a request for SSIDs of WLANs (step 306). In the case that the SSID list is transmitted along with the indication or the list is sent without any indication, steps 306-310 are omitted. Upon receipt of the request, the UTRAN cell 110 retrieves the SSIDs information (step 308). The UTRAN cell 110 transmits the list of WLAN SSIDs and optionally their associated locations and PLMN ID (step 310). After receiving the list of SSIDs, the WTRU 102 stores them in a memory and scans, either actively or passively, for an appropriate AP using the list (step 312). If the WTRU 102 is within the range of the WLAN coverage, the WTRU 102 initiates an I-WLAN selection (step 312). The WTRU 102 initiates a WLAN service with the selected WLAN (step 314). The WLAN 120 authenticates the WTRU 102 and may allocate a new IP address, if necessary, which typically depends on the type of inter-working scheme being implemented, as explained in more detail below (step 316). After authentication is completed at step 318, access to the WLAN service is granted for the WTRU 102 (step 320).
[0033] As mentioned above, different inter-working schemes may be used for connecting the I-WLAN to the UTRAN. For example, under the current wireless communication standards, the I-WLAN may be connected to the 3GPP system via a core network, (i.e., packet date gateway (PDG)), or via the UTRAN as a pipe. In the latter case, no new IP address is assigned in case of I-WLAN reselection, (handoff from the 3GPP system to I-WLAN). In the former case, (i.e., PDG based interworking), new procedures are used to allocate an IP address to the WTRU operating in the I-WLAN. These procedures are different than those used in the 3GPP system and thus may result in the assignment of a new IP address for the WTRU.
[0034] Although the elements in the Figures are illustrated as separate elements, these elements may be implemented on a single integrated circuit (IC), such as an application specific integrated circuit (ASIC), multiple ICs, discrete components, or a combination of discrete components and IC(s). Although the features and elements of the present invention are described in the preferred embodiments in particular combinations, each feature or element can be used alone without the other features and elements of the preferred embodiments or in various combinations with or without other features and elements of the present invention. Furthermore, the present invention may be implemented in any type of wireless communication system. * * *

Claims

CLAIMS What is claimed is: 1. In an area where a plurality of wireless communication systems are deployed with overlapping coverage areas wherein each wireless communication system implements a different radio access technology (RAT) and are configured such that a service that is provided by one wireless communication system may be provided through the other wireless communication system, a method for switching a RAT between the wireless communication systems with a multi-mode wireless transmit/receive unit (WTRU) configured to support more than one RAT, comprising: each wireless communication system transmitting an indication of existence of an inter-working wireless communication system implementing a different RAT which is available in a coverage area of each wireless communication system; the WTRU receiving the indication through a currently connected wireless communication system; the WTRU receiving information regarding the inter-working wireless communication system where it is determined to handoff the WTRU to the interworking wireless communication system; and the WTRU initiating a handoff to the inter-working wireless communication system using the received information, whereby the WTRU continues to receive the same services that the WTRU received from the currently connected wireless communication system through the inter-working wireless communication system.
2. The method of claim 1 wherein the indication is broadcast to the WTRU.
3. The method of claim 1 wherein the indication is transmitted to the WTRU through a dedicated control channel for the WTRU.
4. The method of claim 3 wherein the indication is transmitted in response to a report specifying the capability of the WTRU to support the RAT of the inter-working wireless communication system.
5. The method of claim 4 wherein the information regarding the interworking wireless communication system is transmitted along with the indication.
6. The method of claim 1 wherein the wireless communication systems are a wireless local area network (WLAN) and a universal mobile telecommunication system (UMTS) terrestrial radio access network (UTRAN).
7. The method of claim 6 wherein the WTRU establishes a connection with the UTRAN and receives an indication regarding availability of a WLAN within the coverage of a UTRAN cell.
8. The method of claim 7 wherein the indication includes a service set identity (SSID) of the WLAN available within the UTRAN cell.
9. The method of claim 7 wherein the information includes a location of the WLAN and public land mobile network identity.
10. The method of claim 7 wherein an association to the WLAN is based on channel quality measurement.
11. The method of claim 7 wherein connection security is enabled by wired equivalent privacy (WEP) information.
12. The method of claim 1 wherein the handoff is initiated autonomously.
13. The method of claim 1 wherein the availability of the inter-working wireless communication system is alerted to the user.
14. The method of claim 13 wherein the handoff is initiated upon request of a user.
15. The method of claim 1 wherein a new internet protocol (IP) address is provided after handoff.
16. A system for switching a radio access technology (RAT) between wireless communication systems comprising: a plurality of wireless communication systems, each wireless communication system implementing a different RAT and having at least partially overlapping coverage areas, each wireless communication system comprising: means for transmitting an indication of the existence of an interworking wireless communication system which is available in an overlapping coverage area of the wireless communication systems wherein the systems are configured so that a service that is provided by one wireless communication system may be provided through the inter-working wireless communication system; and means for transmitting an information regarding the inter-working wireless communication system; and a wireless transmit/receive unit (WTRU) configured to support a plurality of RATs comprising: means for receiving the indication through a currently connected wireless communication system; means for receiving the information regarding the inter-working wireless communication system where the WTRU is to be handoff to the interworking wireless communication system; and means for initiating a handoff to the inter-working wireless communication system using the received information, whereby the WTRU continues to receive the same services that the WTRU received from the currently connected wireless communication system through the inter-working wireless communication system.
17. The system of claim 16 wherein the indication is broadcast to the WTRU.
18. The system of claim 16 wherein the indication is transmitted to the WTRU through a dedicated channel for the WTRU.
19. The system of claim 18 wherein the indication is transmitted in response to a report of WTRU capability supporting the RAT of the inter-working wireless communication system.
20. The system of claim 18 wherein the information regarding the interworking wireless communication system is transmitted along with the indication.
21. The system of claim 16 wherein the wireless communication systems are a wireless local area network (WLAN) and a universal mobile telecommunication system (UMTS) terrestrial radio access network (UTRAN).
22. The system of claim 16 wherein the WTRU established a connection with the UTRAN and receives an indication regarding the availability of WLAN through the UTRAN.
23. The system of claim 22 wherein the indication includes a service set identity of the WLAN available in the UTRAN.
24. The system of claim 22 wherein the information includes a location of the WLAN and public land mobile network identity.
25. The system of claim 22 wherein an association to the WLAN is based on channel quality measurement.
26. The system of claim 22 wherein connection security is enabled by wired equivalent privacy (WEP) information.
27. The system of claim 16 wherein the handoff is initiated autonomously.
28. The system of claim 16 wherein an alert to the user is provided indicating the availability of the inter- working wireless communication system.
29. The system of claim 28 wherein the handoff is initiated upon user's request.
30. The system of claim 16 wherein a new internet protocol (IP) address is provided after handoff.
31. In an area where a plurality of wireless communication systems are deployed with overlapping coverage areas wherein each wireless communication system implements a different radio access technology (RAT) and are configured such that a service that is provided by one wireless communication system may be provided through the other wireless communication system, a method for switching a RAT between the wireless communication systems with a multi-mode wireless transmit/receive unit (WTRU) configured to support more than one RAT, comprising: each wireless communication system transmitting information regarding an inter-working wireless communication system implementing a different RAT which is available in a coverage area of each wireless communication system; the WTRU receiving the information through a currently connected wireless communication system; and the WTRU initiating a handoff to the inter-working wireless communication system using the information, whereby the WTRU continues to receive the same services that the WTRU received from the currently connected wireless communication system through, the inter-working wireless communication system.
32. The method of claim 31 wherein the transmitted information regarding an inter- working wireless communication system is a list of service set identifiers (SSIDs).
33. The method of claim 32 wherein the inter-working wireless communication system is a wireless local area network (WLAN).
34. A system for switching a radio access technology (RAT) between wireless communication systems comprising: a plurality of wireless communication systems, each wireless communication system implementing a different RAT and having at least partially overlapping coverage areas, each wireless communication system comprising: means for transmitting information regarding an inter-working wireless communication system which is available in an overlapping coverage area of the wireless communication systems wherein the systems are configured so that a service that is provided by one wireless communication system may be provided through the inter-working wireless communication system; and a wireless transmit/receive unit (WTRU) configured to support a plurality of RATs comprising: means for receiving the information through a currently connected wireless communication system; and means for initiating a handoff to the inter-working wireless communication system using the received information, whereby the WTRU continues to receive the same services that the WTRU received from the currently connected wireless communication system tlxrough the inter-working wireless communication system.
35. The system of claim 34 wherein the information regarding an interworking wireless communication system is a list of service set identifiers (SSIDs).
36. The system of claim 35 wherein the inter-working wireless communication system is a wireless local area network (WLAN).
37. The system of claim 34 wherein the WTRU only receives the information where it is determined that the WTRU is to be handed off to the inter-working wireless communication system.
PCT/US2005/008315 2004-03-12 2005-03-11 Method and system for switching a radio access technology between wireless communicaiton systems with a multi-mode wireless transmit/receive unit WO2005089249A2 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
KR1020107008978A KR101150553B1 (en) 2004-03-12 2005-03-11 Method and system for switching a radio access technology between wireless communication systems with a multi-mode wireless transmit/receive unit
CN2005800078999A CN1934880B (en) 2004-03-12 2005-03-11 Method and system for switching a radio access technology between wireless communication systems with a multi-mode wireless transmit/receive unit
DE602005015556T DE602005015556D1 (en) 2004-03-12 2005-03-11 METHOD FOR SWITCHING A RADIO ACCESS TECHNOLOGY BETWEEN WIRELESS COMMUNICATION SYSTEMS WITH A WIRELESS TRANSMISSION / RECEIVING UNIT OF MULTIPLE MODES OF OPERATION
CA002559268A CA2559268A1 (en) 2004-03-12 2005-03-11 Method and system for switching a radio access technology between wireless communicaiton systems with a multi-mode wireless transmit/receive unit
KR1020067021187A KR100888994B1 (en) 2004-03-12 2005-03-11 Method and system for switching a radio access technology between wireless communication systems with a multi-mode wireless transmit/receive unit
AT05725469T ATE437545T1 (en) 2004-03-12 2005-03-11 METHOD FOR SWITCHING RADIO ACCESS TECHNOLOGY BETWEEN WIRELESS COMMUNICATION SYSTEMS USING A MULTIPLE-MODE WIRELESS TRANSMITTER/RECEIVE UNIT
KR1020077007384A KR101300454B1 (en) 2004-03-12 2005-03-11 Method and system for switching a radio access technology between wireless communication systems with a multi-mode wireless transmit/receive unit
KR1020137002850A KR20130028788A (en) 2004-03-12 2005-03-11 Method and system for switching a radio access technology between wireless communication systems with a multi-mode wireless transmit/receive unit
JP2007503083A JP4642069B2 (en) 2004-03-12 2005-03-11 Method and apparatus for switching radio access technology between radio communication systems using multimode radio transceiver
MXPA06010238A MXPA06010238A (en) 2004-03-12 2005-03-11 Method and system for switching a radio access technology between wireless communicaiton systems with a multi-mode wireless transmit/receive unit.
EP05725469A EP1723814B1 (en) 2004-03-12 2005-03-11 Method for switching a radio access technology between wireless communication systems with a multi-mode wireless transmit/receive unit
DK05725469T DK1723814T3 (en) 2004-03-12 2005-03-11 Method of switching a radio switching technology between wireless communication systems with a multimode wireless transmitting / receiving device
NO20064569A NO20064569L (en) 2004-03-12 2006-10-10 Method and system for switching a radio access technology between wireless communication systems with a multi-mode wireless transmitter / receiver unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55256104P 2004-03-12 2004-03-12
US60/552,561 2004-03-12

Publications (2)

Publication Number Publication Date
WO2005089249A2 true WO2005089249A2 (en) 2005-09-29
WO2005089249A3 WO2005089249A3 (en) 2006-09-08

Family

ID=34994218

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/008315 WO2005089249A2 (en) 2004-03-12 2005-03-11 Method and system for switching a radio access technology between wireless communicaiton systems with a multi-mode wireless transmit/receive unit

Country Status (15)

Country Link
US (3) US7924785B2 (en)
EP (2) EP1723814B1 (en)
JP (1) JP4642069B2 (en)
KR (5) KR101300454B1 (en)
CN (3) CN1934880B (en)
AT (1) ATE437545T1 (en)
CA (1) CA2559268A1 (en)
DE (1) DE602005015556D1 (en)
DK (1) DK1723814T3 (en)
ES (1) ES2329055T3 (en)
HK (1) HK1176208A1 (en)
MX (1) MXPA06010238A (en)
NO (1) NO20064569L (en)
TW (4) TWI468049B (en)
WO (1) WO2005089249A2 (en)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1915015A2 (en) * 2006-10-20 2008-04-23 Samsung Electronics Co., Ltd. Apparatus and method for vertical handover in broadband wireless communication system
WO2008071066A1 (en) * 2006-12-15 2008-06-19 Huawei Technologies Co., Ltd. Processing method and system for realizing the configuring of network element in multi-standard communication system
WO2008097626A1 (en) * 2007-02-08 2008-08-14 Interdigital Technology Corporation Method and apparatus for reporting 3gpp and non-3gpp interworking capabilities of a multimode wtru
EP1964417A2 (en) * 2005-12-21 2008-09-03 Cisco Technology, Inc. System and method for integrated wifi/wimax neighbor ap discovery and ap advertisement
JP2009520433A (en) * 2006-01-13 2009-05-21 ノキア コーポレイション Terminal, access point, and method for query roaming prior to association / authentication
JP2009531972A (en) * 2006-03-24 2009-09-03 インターデイジタル テクノロジー コーポレーション Method and apparatus for performing a handover procedure between a 3GPP LTE network and an alternative radio network
WO2010022256A3 (en) * 2008-08-20 2010-04-15 Qualcomm Incorporated Methods and apparatus for switching between a base channel and a 60 ghz channel
KR100965712B1 (en) 2006-11-20 2010-06-24 삼성전자주식회사 Method and apparatus for transmitting and receiving signal in a communication system
WO2010093968A1 (en) * 2009-02-13 2010-08-19 Qualcomm Incorporated Methods and systems for selecting a handover base station in mobile wimax
WO2011019976A1 (en) * 2009-08-12 2011-02-17 Qualcomm Incorporated Systems and methods of advertising handoff
WO2011116022A1 (en) * 2010-03-16 2011-09-22 Qualcomm Incorporated Methods and apparatus for establishing reciprocal inter-radio access technology neighbor relations
JP2012010379A (en) * 2006-03-09 2012-01-12 Qualcomm Inc System and method for multinetwork coverage
WO2012068026A1 (en) * 2010-11-16 2012-05-24 Apple Inc. Cell reselection using access point information
US8291625B2 (en) 2008-07-04 2012-10-23 Lg Electronics Inc. Method for transmitting information for inter-radio access technology handover
US8594163B2 (en) 2009-11-05 2013-11-26 Fujitsu Limited Mobile terminal, method of controlling mobile terminal and control apparatus
US8639243B2 (en) 2009-08-21 2014-01-28 Qualcomm Incorporated Systems, methods and apparatus configured to manage neighbor cell lists
WO2014029075A1 (en) 2012-08-21 2014-02-27 Nokia Corporation Method and apparatus for wireless communication in a heterogenous network
US8699450B2 (en) 2008-05-11 2014-04-15 Qualcomm Incorporated Systems and methods for multimode wireless communication handoff
US8798624B2 (en) 2009-06-10 2014-08-05 Apple Inc. Providing an indicator of presence of a first access network that is capable of interworking with a second access network
US8914867B2 (en) 2010-02-12 2014-12-16 Notava Oy Method and apparatus for redirecting data traffic
WO2015069173A1 (en) 2013-11-11 2015-05-14 Telefonaktiebolaget L M Ericsson (Publ) Controlling the operation of mobile terminals with respect to multiple radio access technologies
US9036599B2 (en) 2008-05-11 2015-05-19 Qualcomm Incorporated Systems and methods for multimode wireless communication handoff
US9113368B2 (en) 2011-03-25 2015-08-18 Qualcomm Incorporated Maintaining neighbor cell list
US9237503B2 (en) 2002-07-02 2016-01-12 Interdigital Technology Corporation Method and apparatus for handoff between a wireless local area network (WLAN) and a universal mobile telecommunication system (UMTS)
US9380501B2 (en) 2004-03-12 2016-06-28 InterDigital Technology Corporation, Inc. Method and system for switching a radio access technology between wireless communication systems with a multi-mode wireless transmit/receive unit
EP2938127A4 (en) * 2012-12-19 2016-08-24 Lg Electronics Inc Method for communicating in wireless communication system supporting multiple access network and apparatus supporting same
US9668203B2 (en) 2014-05-29 2017-05-30 Apple Inc. Device-type specific preferred PLMN list
US9826443B2 (en) 2007-02-12 2017-11-21 Interdigital Technology Corporation Method and apparatus for supporting handover from LTE/EUTRAN to GPRS/GERAN
US9955403B2 (en) 2012-12-20 2018-04-24 Lg Electronics Inc. Method for communicating in wireless communication system supporting multiple access network and apparatus supporting same
US10045271B2 (en) 2003-11-13 2018-08-07 Interdigital Technology Corporation Method and system for facilitating inter-system handover for wireless communication
WO2020085824A1 (en) * 2018-10-24 2020-04-30 엘지전자 주식회사 Method and device for controlling multiple links in wireless lan system supporting multiple links

Families Citing this family (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6542481B2 (en) 1998-06-01 2003-04-01 Tantivy Communications, Inc. Dynamic bandwidth allocation for multiple access communication using session queues
US6081536A (en) 1997-06-20 2000-06-27 Tantivy Communications, Inc. Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (CDMA) radio link
US6222832B1 (en) 1998-06-01 2001-04-24 Tantivy Communications, Inc. Fast Acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system
US7394791B2 (en) * 1997-12-17 2008-07-01 Interdigital Technology Corporation Multi-detection of heartbeat to reduce error probability
US9525923B2 (en) 1997-12-17 2016-12-20 Intel Corporation Multi-detection of heartbeat to reduce error probability
US8175120B2 (en) 2000-02-07 2012-05-08 Ipr Licensing, Inc. Minimal maintenance link to support synchronization
US8134980B2 (en) 1998-06-01 2012-03-13 Ipr Licensing, Inc. Transmittal of heartbeat signal at a lower level than heartbeat request
US8155096B1 (en) 2000-12-01 2012-04-10 Ipr Licensing Inc. Antenna control system and method
US6954448B2 (en) 2001-02-01 2005-10-11 Ipr Licensing, Inc. Alternate channel for carrying selected message types
US7551663B1 (en) 2001-02-01 2009-06-23 Ipr Licensing, Inc. Use of correlation combination to achieve channel detection
ES2626289T3 (en) 2001-06-13 2017-07-24 Intel Corporation Method and apparatus for transmitting heartbeat signal at a lower level than the heartbeat request
US9031568B2 (en) * 2004-07-28 2015-05-12 Broadcom Corporation Quality-of-service (QoS)-based association with a new network using background network scanning
WO2007035061A1 (en) * 2005-09-22 2007-03-29 Samsung Electronics Co., Ltd. Method for transmitting/responding paging information for dual-mode access terminal and device and method for network switching according to network indication
US20070082697A1 (en) * 2005-10-07 2007-04-12 Research In Motion Limited System and method of handset configuration between cellular and private wireless network modes
EP1772994A1 (en) * 2005-10-07 2007-04-11 Research In Motion Limited System and method for configuring a handset between a cellular and a private wireless network mode
WO2007053708A2 (en) 2005-10-31 2007-05-10 The Trustees Of Columbia University In The City Of New York Methods, media, and systems for securing communications between a first node and a second node
TW201036387A (en) 2005-11-04 2010-10-01 Interdigital Tech Corp Method and apparatus for mapping 3GPP service primitives to media independent handover event services
WO2007062004A2 (en) * 2005-11-22 2007-05-31 The Trustees Of Columbia University In The City Of New York Methods, media, and devices for moving a connection from one point of access to another point of access
US8432794B2 (en) 2005-12-29 2013-04-30 Interdigital Technology Corporation Method and apparatus for selecting multiple transport formats and transmitting multiple transport blocks simultaneously with multiple H-ARQ processes
AU2007212605B2 (en) 2006-02-03 2010-06-17 Interdigital Technology Corporation Method and system for supporting multiple hybrid automatic repeat request processes per transmission time interval
CN101035375A (en) * 2007-02-02 2007-09-12 华为技术有限公司 Self-adaptive communication system, terminal, method and access point
US8107954B2 (en) * 2007-03-09 2012-01-31 Research In Motion Limited System and method for wireless network selection by multi-mode devices
EP2369814B1 (en) * 2007-03-09 2017-07-19 BlackBerry Limited System and method for wireless network selection by multi-mode devices
WO2008118976A1 (en) 2007-03-26 2008-10-02 The Trustees Of Culumbia University In The City Of New York Methods and media for exchanging data between nodes of disconnected networks
US9319879B2 (en) 2007-05-30 2016-04-19 Apple Inc. Method and apparatus for security configuration and verification of wireless devices in a fixed/mobile convergence environment
US20080310358A1 (en) * 2007-06-06 2008-12-18 Interdigital Technology Corporation Method and apparatus for providing cell information list for non-3gpp capable user equipment operating in a 3gpp network and supporting layer-2 based handoff from a utran system to a non-3gpp system
WO2008154236A1 (en) * 2007-06-08 2008-12-18 Interdigital Technology Corporation Method and apparatus for providing capability and core network information to support interworking between 3gpp and non-3gpp networks
CN101690288B (en) * 2007-07-04 2013-01-23 Lm爱立信电话有限公司 Location functionality in an interworking WLAN system
JP5002650B2 (en) * 2007-07-19 2012-08-15 パナソニック株式会社 Relay station, mobile station, and relay transmission method in mobile communication system
US8737295B2 (en) * 2007-11-16 2014-05-27 Qualcomm Incorporated Sector identification using sector parameters signatures
US8902867B2 (en) * 2007-11-16 2014-12-02 Qualcomm Incorporated Favoring access points in wireless communications
US20090137228A1 (en) * 2007-11-16 2009-05-28 Qualcomm Incorporated Utilizing restriction codes in wireless access point connection attempts
US9603062B2 (en) 2007-11-16 2017-03-21 Qualcomm Incorporated Classifying access points using pilot identifiers
US8848656B2 (en) * 2007-11-16 2014-09-30 Qualcomm Incorporated Utilizing broadcast signals to convey restricted association information
KR101018551B1 (en) * 2007-12-18 2011-03-03 아주대학교산학협력단 Mobile terminal and method for seamless service
US20090245200A1 (en) * 2008-03-31 2009-10-01 Violeta Cakulev Method and apparatus for communication between wireless telecommunications networks of different technology types
US8019296B1 (en) 2008-04-17 2011-09-13 Sprint Spectrum L.P. Selective scanning for WLAN coverage by a multi-mode device
US20090279503A1 (en) * 2008-05-11 2009-11-12 Qualcomm Incorporated Systems and methods for multimode wireless communication handoff
US20100027510A1 (en) * 2008-08-04 2010-02-04 Qualcomm Incorporated Enhanced idle handoff to support femto cells
US8588773B2 (en) * 2008-08-04 2013-11-19 Qualcomm Incorporated System and method for cell search and selection in a wireless communication system
KR100980273B1 (en) * 2008-08-05 2010-09-06 (주)카이로넷 A processing method of prediction based handoff of heterogeneous wireless networks
US20100069086A1 (en) * 2008-09-17 2010-03-18 Sony Ericsson Mobile Communications Ab Mobile Terminals Providing Network-Based Location Data, and Methods and Computer Program Product for Operating the Same
JP5264451B2 (en) * 2008-12-03 2013-08-14 株式会社エヌ・ティ・ティ・ドコモ Mobile communication method, mobile station, and network device
JP2010283513A (en) * 2009-06-03 2010-12-16 Nec Corp Access information guidance system, access information guidance method and program
US8630667B2 (en) * 2009-10-23 2014-01-14 Apple Inc. Methods and apparatus for paging reception in multimode wireless networks
US8649359B2 (en) 2010-11-19 2014-02-11 Nokia Corporation Apparatus and method for selection of a gateway of a local area network
WO2012074878A2 (en) 2010-12-03 2012-06-07 Interdigital Patent Holdings, Inc. Methods, apparatus and systems for performing multi-radio access technology carrier aggregation
US9137742B1 (en) * 2011-02-23 2015-09-15 Sprint Communications Company L.P. Selective authentication of user devices in wireless communication networks
US8681759B2 (en) * 2011-04-15 2014-03-25 Blackberry Limited Methods and apparatus for use in efficiently scanning for wireless networks based on application type
US8666399B2 (en) 2011-04-15 2014-03-04 Blackberry Limited Methods and apparatus for use in efficiently scanning for wireless networks based on mobile device velocity
US9503966B2 (en) 2011-07-22 2016-11-22 Nokia Technologies Oy Idle mode access through assisted discovery
EP2737768A1 (en) 2011-07-29 2014-06-04 Interdigital Patent Holdings, Inc. Method and apparatus for radio resources management in multi-radio access technology wireless systems
CN103947258B (en) * 2011-09-29 2018-10-09 三星电子株式会社 Mobile communication system and information processing method for improving user experience in mobile communication system
US8665847B2 (en) * 2011-11-08 2014-03-04 Microsoft Corporation Service-assisted network access point selection
US8953490B2 (en) 2012-03-02 2015-02-10 Blackberry Limited Methods and apparatus for use in facilitating Wi-Fi peer-to-peer (P2P) wireless networking
EP2824981B1 (en) 2012-03-08 2019-02-27 Samsung Electronics Co., Ltd. Method for controlling service in radio communication system
KR102092563B1 (en) * 2012-03-19 2020-03-24 삼성전자 주식회사 Method and aparatus for communication using wlan access point
US8942763B2 (en) * 2012-05-08 2015-01-27 Telefonaktiebolaget L M Ericsson (Publ) Radio communication system, method and arrangement for use in a radio communication system
CN103391632A (en) * 2012-05-08 2013-11-13 中兴通讯股份有限公司 Network access method and device
CN103391633B (en) * 2012-05-09 2018-08-24 中兴通讯股份有限公司 Method for network access and device
US9060329B2 (en) 2012-06-06 2015-06-16 Blackberry Limited Methods and apparatus for use in facilitating communication for different types of wireless networks
US9565622B2 (en) * 2012-07-05 2017-02-07 Qualcomm Incorporated Detecting services provided by a wireless node before device discovery and connection establishment
KR101637370B1 (en) * 2012-07-26 2016-07-07 엘지전자 주식회사 Method of supporting communication using two or more radio access technologies and apparatus for same
CA2882876C (en) 2012-08-23 2021-01-26 Interdigital Patent Holdings, Inc. Providing physical layer resources to different serving sites
CN104584633B (en) 2012-08-23 2018-12-18 交互数字专利控股公司 It is operated in radio systems using multiple schedulers
WO2014047936A1 (en) * 2012-09-29 2014-04-03 华为技术有限公司 Data transmission method, device, terminal and base station
US10356640B2 (en) 2012-11-01 2019-07-16 Intel Corporation Apparatus, system and method of cellular network communications corresponding to a non-cellular network
US9414392B2 (en) 2012-12-03 2016-08-09 Intel Corporation Apparatus, system and method of user-equipment (UE) centric access network selection
KR101726197B1 (en) * 2012-12-19 2017-04-12 엘지전자 주식회사 Method for selectively processing traffic in wireless communication system supporting multiple access network, and apparatus supporting same
CN104885522B (en) * 2012-12-28 2019-10-22 安华高科技股份有限公司 Improve the method, apparatus and computer program product of mobile communication
EP2946607B1 (en) * 2013-01-17 2018-08-22 Intel IP Corporation Apparatus, system and method of communicating non-cellular access network information over a cellular network
DE112013006450B4 (en) * 2013-01-18 2017-09-14 Avago Technologies General Ip (Singapore) Pte. Ltd. Collaboration between dissimilar wireless networks
KR102179533B1 (en) 2013-02-28 2020-11-17 삼성전자주식회사 Method and appratus of controlling access from wireless local acess network and providing valid neighbor wireless local acess network access point in mobile communication system
US9398505B2 (en) 2013-03-14 2016-07-19 Google Inc. Reducing stream interruptions during network handover
CN104066127A (en) * 2013-03-22 2014-09-24 联发科技股份有限公司 Methods for rapidly switching between different RATs and communications apparatuses utilizing the same
WO2014165475A1 (en) * 2013-04-02 2014-10-09 Apple Inc. Facilitating return to a first wireless network from a second wireless network after performance of a circuit switched fallback procedure
US9160515B2 (en) 2013-04-04 2015-10-13 Intel IP Corporation User equipment and methods for handover enhancement using scaled time-to-trigger and time-of-stay
CN105144768B (en) 2013-04-26 2019-05-21 英特尔Ip公司 Shared frequency spectrum in frequency spectrum share situation is redistributed
US9497682B2 (en) 2013-06-07 2016-11-15 Intel Corporation Central processing unit and methods for supporting coordinated multipoint transmission in an LTE network
KR102162958B1 (en) * 2013-07-11 2020-10-07 삼성전자 주식회사 Method and apparatus for handover in wireless lan system and system therefor
WO2015011822A1 (en) * 2013-07-25 2015-01-29 富士通株式会社 Wireless communication system, base station, mobile station, and wireless communication method
US9781662B2 (en) * 2013-08-06 2017-10-03 Htc Corporation Method of performing wireless local area network measurement in wireless communication systems
US9241292B2 (en) 2013-09-25 2016-01-19 Google Inc. Seamless application connectivity
CN106105327B (en) * 2014-03-21 2019-09-10 瑞典爱立信有限公司 The method and apparatus of WLAN identifier list are provided to terminal device
US20150305041A1 (en) * 2014-04-16 2015-10-22 Electronics And Telecommunications Research Institute Method and apparatus for providing service using radio resource aggregation
US9467865B2 (en) * 2014-05-16 2016-10-11 Qualcomm Incorporated Avoidance of interference during simultaneous multi-active technologies in global mode
WO2016009983A1 (en) * 2014-07-16 2016-01-21 京セラ株式会社 Communication system and radio terminal
US20160044591A1 (en) * 2014-08-07 2016-02-11 Acer Incorporated Method of Access Network Detection and Selection
US11399335B2 (en) * 2014-09-29 2022-07-26 Nokia Solutions And Networks Oy Network operator assisted connectivity over a second network
KR101905941B1 (en) 2014-11-13 2018-10-11 주식회사 케이티 Methods for transmitting and receiving data using WLAN carriers and Apparatuses thereof
WO2016076634A2 (en) * 2014-11-13 2016-05-19 주식회사 케이티 Method and device for transmitting/receiving data using wlan carrier
US10015041B2 (en) * 2015-09-17 2018-07-03 Comcast Cable Communications, Llc Providing network connectivity for a service disruption
US9992723B2 (en) * 2016-02-18 2018-06-05 Qualcomm Incorporated Techniques for handling data stall in WLAN
DE102016206149A1 (en) * 2016-04-13 2017-10-19 Robert Bosch Gmbh Method and apparatus for communicating between a parking lot management system and a motor vehicle
US10298673B2 (en) 2016-07-29 2019-05-21 Microsoft Technology Licensing, Llc Roaming to share a communication channel
EP3764675B1 (en) 2016-12-06 2023-11-01 Telefonaktiebolaget LM Ericsson (publ) Improved public information system
EP3586561B1 (en) * 2017-02-21 2020-12-09 Telefonaktiebolaget LM Ericsson (publ) Method and devices for dual connectivity between a dual protocol stack user equipment and two baseband units of a radio access telecommunications network
US10085118B1 (en) 2017-03-17 2018-09-25 SCRRD, Inc. Wireless device detection, tracking, and authentication platform and techniques
CN110637480A (en) 2017-03-17 2019-12-31 Scrrd公司 Wireless device detection, tracking and authentication platform and techniques
US10341814B2 (en) 2017-03-17 2019-07-02 SCRRD, Inc. Wireless device detection, tracking, and authentication platform and techniques

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2322051A (en) 1994-04-28 1998-08-12 Motorola Inc Inter-system handover in a multisystem mobile radio environment
WO2000060895A1 (en) 1999-04-06 2000-10-12 Telefonaktiebolaget Lm Ericsson (Publ) Generic inter-system handover mechanism

Family Cites Families (284)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3952610A (en) 1974-04-04 1976-04-27 Hope Henry F Gear system
SE9301695L (en) 1993-05-17 1994-09-12 Ericsson Telefon Ab L M Method and apparatus for channel utilization in a radio communication system
US5555376A (en) 1993-12-03 1996-09-10 Xerox Corporation Method for granting a user request having locational and contextual attributes consistent with user policies for devices having locational attributes consistent with the user request
ES2154276T3 (en) 1993-12-27 2001-04-01 Ricos Kk COMMUNICATIONS DEVICE TO DOWNLOAD DATA.
US5666650A (en) 1995-04-19 1997-09-09 Telefonaktiebolaget Lm Ericsson Split neighbor lists for multiple hyperband capable cellular communications systems
US5640676A (en) 1995-05-11 1997-06-17 Motorola, Inc. Method for generating a handoff candidate list
US5790954A (en) 1995-05-30 1998-08-04 Motorola, Inc. Methods of requesting volunteers for handoff in a cellular system
US5930700A (en) 1995-11-29 1999-07-27 Bell Communications Research, Inc. System and method for automatically screening and directing incoming calls
US5826188A (en) * 1995-12-07 1998-10-20 Motorola, Inc. Method and apparatus for handing off calls between differing radio telecommunication networks
US5787347A (en) 1995-12-11 1998-07-28 Gte Laboratories Incorporated Method and apparatus for selecting a cellular system for communication with a cellular telephone in a roaming area
US5862480A (en) 1995-12-26 1999-01-19 Motorola, Inc. Method and apparatus for managing service accessibility between differing radio telecommunication networks
US5903840A (en) 1996-01-16 1999-05-11 Telefonaktiebolaget Im Ericsson (Publ) System and method for adaptive measurement collection and handoff queuing in a radio telecommunications network
US5999811A (en) * 1996-02-16 1999-12-07 Ericsson, Inc. Mobile telephone for roaming using dual mode/band equipment including SIM cards
EP0800319A1 (en) 1996-04-02 1997-10-08 Hewlett-Packard Company Locating method for mobile radio systems
JPH104580A (en) 1996-06-14 1998-01-06 Oki Electric Ind Co Ltd Hand-off communication system
US6112093A (en) 1996-07-03 2000-08-29 Telefonaktiebolaget Lm Ericsson Radio communication system and method for analog and digital traffic channel allocation using a second higher threshold when allocating a digital channel
US6011973A (en) * 1996-12-05 2000-01-04 Ericsson Inc. Method and apparatus for restricting operation of cellular telephones to well delineated geographical areas
GB2320653A (en) 1996-12-23 1998-06-24 Northern Telecom Ltd Mobile Communications Network Using Alternative Protocols
EP0852448A1 (en) 1997-01-02 1998-07-08 Nokia Mobile Phones Ltd. User terminal for mobile communications
US5940761A (en) 1997-01-15 1999-08-17 Qaulcomm Incorporated Method and apparatus for performing mobile assisted hard handoff between communication systems
US5999816A (en) 1997-02-18 1999-12-07 Qualcomm Incorporated Method and apparatus for performing mobile assisted hard handoff between communication systems
FI109510B (en) 1997-02-28 2002-08-15 Nokia Corp Handover and call set-up in a mobile communication system
JPH10276473A (en) * 1997-03-28 1998-10-13 Nec Corp Mobile communication system and mobile communication device
FI107008B (en) * 1997-04-22 2001-05-15 Nokia Networks Oy Multimode terminal network connection in a mobile communication system
US6128490A (en) 1997-05-08 2000-10-03 Nortel Networks Limited Wireless communication system that supports selection of operation from multiple frequency bands and multiple protocols and method of operation therefor
US6195556B1 (en) 1997-07-15 2001-02-27 Metawave Communications Corporation System and method of determining a mobile station's position using directable beams
US6057782A (en) 1997-07-30 2000-05-02 At&T Corporation Method and apparatus for paging alternate users
US6115608A (en) 1997-09-10 2000-09-05 Northern Telecom Limited Intersystem handover method and apparatus
DE69817145T2 (en) 1998-02-13 2004-06-09 Lucent Technologies Inc. Integrated system of cordless telecommunications and a local network
US6201968B1 (en) 1998-03-05 2001-03-13 Motorola, Inc. Method combining entries from multiple neighbor cell lists to obtain an updated list for a subscriber device
US6148197A (en) 1998-03-06 2000-11-14 Sbc Technology Resources, Inc. Intelligent roaming system with over the air programming
US6385772B1 (en) 1998-04-30 2002-05-07 Texas Instruments Incorporated Monitoring system having wireless remote viewing and control
US6161015A (en) 1998-05-28 2000-12-12 Motorola, Inc. Method for improving communication coverage in multi-cell communication systems using location information
FI106830B (en) * 1998-06-16 2001-04-12 Nokia Networks Oy Procedure for control of communication and communication system
US6295450B1 (en) 1998-06-23 2001-09-25 Motorola, Inc. Method and apparatus for transferring communication within a communication system
JO2117B1 (en) 1998-07-15 2000-05-21 كانال + تيكنولوجيز سوسيته انونيم method and apparatus for secure communication of information between aplurality of digital audiovisual devices
IL140981A0 (en) 1998-07-20 2002-02-10 Qualcomm Inc Base station handover in a hybrid gsm/cdma network
US6353602B1 (en) 1998-08-07 2002-03-05 Lucent Technologies Inc. CDMA base station assisted soft handoff
JP2000092541A (en) * 1998-09-08 2000-03-31 Toshiba Corp Radio communication system, base station device and radio portable equipment
JP3012606B1 (en) * 1998-09-11 2000-02-28 日本電気移動通信株式会社 Base station device, mobile station device, mobile communication system using them, and mobile communication method
US6470184B1 (en) 1998-09-11 2002-10-22 Nec Corporation Mobile communication system in which traffics are equalized
FI982363A (en) 1998-10-30 2000-05-01 Nokia Mobile Phones Ltd A method and system for limiting the operation of a radio device in a particular area
CN1329805A (en) 1998-12-08 2002-01-02 英国电讯有限公司 Method of operating cellular mobile telephone network having subset of base stations only available to some subscribers
US6243581B1 (en) 1998-12-11 2001-06-05 Nortel Networks Limited Method and system for seamless roaming between wireless communication networks with a mobile terminal
US6233466B1 (en) 1998-12-14 2001-05-15 Metawave Communications Corporation Downlink beamforming using beam sweeping and subscriber feedback
US6678520B1 (en) * 1999-01-07 2004-01-13 Hughes Electronics Corporation Method and apparatus for providing wideband services using medium and low earth orbit satellites
US6594242B1 (en) * 1999-01-14 2003-07-15 Ericsson, Inc. Broadcasting of two generation cellular system control channel information over a three generation control channel to support roaming and handover to two generation cellular networks
US7072656B2 (en) 1999-03-16 2006-07-04 Telefonaktiebolaget Lm Ericsson (Publ) Handover in a shared radio access network environment using subscriber-dependent neighbor cell lists
JP3122425B2 (en) 1999-03-17 2001-01-09 株式会社ワイ・アール・ピー移動通信基盤技術研究所 CDMA mobile communication system
KR100315308B1 (en) 1999-03-19 2001-11-28 조정남 Soft Handoff Performing Method
EP1043845A1 (en) 1999-04-06 2000-10-11 Telefonaktiebolaget L M Ericsson (Publ) A method of and equipment for performing radio communication in a plurality of radio communication environments
US7263367B1 (en) 1999-04-28 2007-08-28 Sabot Associates, Inc. Systems and methods for setting a mode of operation of electronic devices
CN1171479C (en) 1999-04-28 2004-10-13 艾利森电话股份有限公司 Virtual numbering plan for inter-operability between heterogeneous networks
US6682923B1 (en) 1999-05-12 2004-01-27 Xencor Thermostable alkaliphilic xylanase
SE522068C2 (en) * 1999-07-15 2004-01-13 Ericsson Telefon Ab L M Method and apparatus for providing radio access carrier services
US6600758B1 (en) 1999-05-28 2003-07-29 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for measuring control carrier signal strength in wireless communications systems employing discontinuous control carrier transmissions
US6597911B1 (en) 1999-05-28 2003-07-22 Ericsson Inc. System, method, and apparatus for cell searching in a next generation overlay of a preexisting network
GB2352586B (en) 1999-06-07 2004-03-10 Nec Corp Handover between mobile networks
JP3772049B2 (en) 1999-06-29 2006-05-10 富士通株式会社 Connection control method and apparatus for mobile communication system
US6591103B1 (en) 1999-06-30 2003-07-08 International Business Machine Corp. Wireless telecommunications system and method of operation providing users′ carrier selection in overlapping hetergenous networks
GB9918636D0 (en) * 1999-08-06 1999-10-13 Nokia Telecommunications Oy Inter-system handover
KR100593476B1 (en) 1999-08-09 2006-06-28 에스케이 텔레콤주식회사 Handoff Method between Upper Cell and Lower Cell in Nested Cell Structure
US6845238B1 (en) 1999-09-15 2005-01-18 Telefonaktiebolaget Lm Ericsson (Publ) Inter-frequency measurement and handover for wireless communications
US6771964B1 (en) 1999-09-24 2004-08-03 Nokia Networks Handover between wireless telecommunication networks/systems
US6894988B1 (en) 1999-09-29 2005-05-17 Intel Corporation Wireless apparatus having multiple coordinated transceivers for multiple wireless communication protocols
US6718178B1 (en) 1999-10-01 2004-04-06 Sprint Spectrum, L.P. Automatic in-line messaging system
FI112417B (en) 1999-10-13 2003-11-28 Helsingin Puhelin Oyj Transmission of confidential information
AU1317201A (en) 1999-10-29 2001-05-08 Telefonaktiebolaget Lm Ericsson (Publ) Mobile terminal handover from a second generation network to a third generation ip-based network
US6965948B1 (en) 1999-11-12 2005-11-15 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for selective network access
US7139557B2 (en) 1999-11-15 2006-11-21 Pango Networks, Inc. Systems, devices and methods for providing services in a proximity-base environment
AU778481B2 (en) 1999-11-30 2004-12-09 Bording Data A/S An electronic key device, a system and a method of managing electronic key information
DE19960733A1 (en) 1999-12-16 2001-09-27 Deutsche Telekom Mobil Method and arrangement for the improved use of technical resources between telecommunications and IP networks
US6591105B1 (en) * 1999-12-30 2003-07-08 Ericsson Inc. System and method for managing access in cellular network with multiple profiles
US6438117B1 (en) 2000-01-07 2002-08-20 Qualcomm Incorporated Base station synchronization for handover in a hybrid GSM/CDMA network
US6747968B1 (en) 2000-01-14 2004-06-08 Nokia Ip Inc. Methods and systems for weighted PCF polling lists for WLAN QoS support
EP1117266A1 (en) 2000-01-15 2001-07-18 Telefonaktiebolaget Lm Ericsson Method and apparatus for global roaming
GB2359220A (en) 2000-02-03 2001-08-15 Orange Personal Comm Serv Ltd Handover in accordance with a network policy
US6865185B1 (en) 2000-02-25 2005-03-08 Cisco Technology, Inc. Method and system for queuing traffic in a wireless communications network
JP2001251366A (en) 2000-03-07 2001-09-14 Sony Corp Communication system and communication method
KR200194486Y1 (en) * 2000-03-10 2000-09-01 유민선 String machine for racket
JP3625269B2 (en) 2000-03-14 2005-03-02 株式会社エヌ・ティ・ティ・ドコモ Handover method, mobile station and base station
NO313950B1 (en) 2000-03-14 2002-12-30 Ericsson Telefon Ab L M Kommunikasjonsidentifikatormetode
US20030080996A1 (en) 2000-04-13 2003-05-01 Daniel Lavin Software for a navigation control unit for use with a wireless computer resource access device and associated system
AU4116501A (en) 2000-04-24 2001-11-07 Neotechkno Corporation External device and authentication system
CA2405044C (en) 2000-05-02 2007-01-23 At&T Corp. System and method for inter-domain mobility management
US6680923B1 (en) 2000-05-23 2004-01-20 Calypso Wireless, Inc. Communication system and method
GB0012623D0 (en) 2000-05-25 2000-07-12 Ericsson Telefon Ab L M Ip address allocation in a mobile telecommunications network
US7200401B1 (en) 2000-06-29 2007-04-03 Nokia Corporation Operator forced inter-system handover
JP3673149B2 (en) 2000-07-11 2005-07-20 クラリオン株式会社 High speed roaming method for wireless LAN
JP4360017B2 (en) 2000-07-17 2009-11-11 沖電気工業株式会社 Server device
US7146636B2 (en) 2000-07-24 2006-12-05 Bluesocket, Inc. Method and system for enabling centralized control of wireless local area networks
US6862684B1 (en) 2000-07-28 2005-03-01 Sun Microsystems, Inc. Method and apparatus for securely providing billable multicast data
US6721565B1 (en) 2000-08-07 2004-04-13 Lucent Technologies Inc. Handover of wireless calls between systems supporting circuit and packet call models
US6720879B2 (en) 2000-08-08 2004-04-13 Time-N-Space Technology, Inc. Animal collar including tracking and location device
GB0019534D0 (en) 2000-08-10 2000-09-27 Koninkl Philips Electronics Nv Radio communication system
US8712473B2 (en) 2000-08-23 2014-04-29 Novatel Wireless, Inc. System and method for seamlessly increasing download throughput
GB2369265B (en) 2000-09-11 2004-03-17 Cable & Wireless Hkt Csl Ltd Method of automatically establishing roaming services in a mobile telecommunications system.
JP2002094604A (en) 2000-09-12 2002-03-29 Canon Inc Terminal detection method, communication device and rcording medium
US20020039892A1 (en) 2000-10-04 2002-04-04 Bo Lindell System and method for network and service selection in a mobile communication station
US6735433B1 (en) 2000-10-11 2004-05-11 Telefonaktiebolaget Lm Ericsson (Publ) Apparatus and method for automated call feature activation/deactivation
US7546376B2 (en) 2000-11-06 2009-06-09 Telefonaktiebolaget Lm Ericsson (Publ) Media binding to coordinate quality of service requirements for media flows in a multimedia session with IP bearer resources
KR100376580B1 (en) 2000-11-14 2003-03-17 에스케이 텔레콤주식회사 A hand-off method between synchronous system and asynchronous system
US7079511B2 (en) 2000-12-06 2006-07-18 Qualcomm, Incorporated Method and apparatus for handoff of a wireless packet data services connection
KR100392643B1 (en) * 2000-12-07 2003-07-23 에스케이 텔레콤주식회사 A method of supporting a hand-off decision for mobility service of dual mode terminal
US6937877B2 (en) 2000-12-21 2005-08-30 General Electric Company Wireless communication with a mobile asset employing dynamic configuration of a software defined radio
US6950503B2 (en) 2000-12-22 2005-09-27 Solomio Corporation Method and system for facilitating mediated communication
US8019335B2 (en) 2001-01-29 2011-09-13 Nokia Corporation Identifying neighboring cells in telecommunication network
US8144728B2 (en) 2001-02-06 2012-03-27 Nokia Corporation Access system for a cellular network
US7006828B1 (en) 2001-02-12 2006-02-28 Via Telecom Co. Ltd. Method and apparatus for performing cell selection handoffs in a wireless communication system
US7184710B2 (en) 2001-02-13 2007-02-27 Telefonaktiebolaget Lm Ericsson (Publ) Transmission of filtering/filtered information over the lur interface
US20030119490A1 (en) 2001-02-26 2003-06-26 Jahangir Mohammed Wireless communications handset for facilitating licensed and unlicensed wireless communications, and method of operation
KR100630676B1 (en) * 2001-03-19 2006-10-02 삼성전자주식회사 Flip-flop for semiconductor device
US20020136226A1 (en) 2001-03-26 2002-09-26 Bluesocket, Inc. Methods and systems for enabling seamless roaming of mobile devices among wireless networks
US20040100913A1 (en) 2001-03-28 2004-05-27 Juha Kalliokulju Method for providing parameters during a change of access, cellular communications system, user equipment and network element
WO2002080605A1 (en) 2001-03-30 2002-10-10 Nokia Corporation Method for supporting a handover between radio access networks
FR2823053B1 (en) 2001-03-30 2003-08-29 Evolium Sas METHOD FOR ESTABLISHING A LIST OF NEIGHBORING CELLS IN A MOBILE RADIO COMMUNICATION SYSTEM
US7181218B2 (en) 2001-04-10 2007-02-20 Telefonaktiebolaget Lm Ericsson (Publ) Commanding handover between differing radio access technologies
US6400265B1 (en) 2001-04-24 2002-06-04 Microstrategy, Inc. System and method for monitoring security systems by using video images
DE10120772A1 (en) 2001-04-24 2002-11-07 Siemens Ag Heterogeneous mobile radio system
US20020161921A1 (en) 2001-04-27 2002-10-31 Docomo Communications Laboratories Usa, Inc. Method of selecting a network access measure from multiple access measures
ATE350868T1 (en) 2001-05-10 2007-01-15 Nortel Networks Ltd SYSTEM AND METHOD FOR DIRECTING COMMUNICATIONS BETWEEN MOBILE TELECOMMUNICATIONS NETWORKS USING DIFFERENT RADIO ACCESS TECHNOLOGIES
US6829481B2 (en) 2001-05-15 2004-12-07 Novatel Wireless, Inc. Systems and methods for intelligent inter-system handoff
US8086855B2 (en) 2001-05-16 2011-12-27 Flash Networks Ltd. Access to PLMN networks for non-PLMN devices, and to issues arising in interfaces in general between PLMN and non-PLMN networks
US7009952B1 (en) 2001-05-24 2006-03-07 3Com Corporation Method and apparatus for seamless mobility with layer two assistance
US6826154B2 (en) 2001-05-24 2004-11-30 3Com Corporation Method and apparatus for seamless mobility between different access technologies
US6615044B2 (en) * 2001-06-06 2003-09-02 Nokia Mobile Phones, Ltd. Method of WCDMA coverage based handover triggering
CN1638776A (en) * 2001-06-08 2005-07-13 西托维亚公司 Substituted 3-aryl-5-aryl-[1,2,4]-oxadiazoles and analogs
US20030003933A1 (en) 2001-06-27 2003-01-02 Intel Corporation Mobile client for multi-service provider network environment
US7313628B2 (en) 2001-06-28 2007-12-25 Nokia, Inc. Protocol to determine optimal target access routers for seamless IP-level handover
GB2377130A (en) 2001-06-29 2002-12-31 Motorola Inc Handover criteria for mobile transceivers
CN1395383A (en) 2001-07-10 2003-02-05 颜森辉 Intelligent all-bearing expert management system
US7181212B2 (en) 2001-08-21 2007-02-20 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for location area updating in cellular communications
US6782266B2 (en) 2001-08-31 2004-08-24 Motorola, Inc. Method of wireless communication in restricted wireless zones
JP2003076804A (en) 2001-09-04 2003-03-14 Sharp Corp Identification method, transmission device, reception device, communication relay device, identification program and computer-readable recording medium with it recorded thereon
US6892083B2 (en) 2001-09-05 2005-05-10 Vocera Communications Inc. Voice-controlled wireless communications system and method
DE10297189T5 (en) 2001-09-12 2004-09-02 Telefonaktiebolaget L M Ericsson (Publ) Location management system and paging server in a wireless IP network
JP3775278B2 (en) 2001-10-25 2006-05-17 日本電気株式会社 Network service information providing system, network service information providing apparatus, method and terminal
US7684798B2 (en) 2001-11-09 2010-03-23 Nokia Corporation Method of pre-authorizing handovers among access routers in communication networks
US6643513B2 (en) 2001-11-15 2003-11-04 Nokia Corporation Method and apparatus for providing immediate ciphering after an inter-system UTRAN-GSM handover
US8068832B2 (en) 2001-11-19 2011-11-29 Nokia Corporation Multicast session handover
SE0103873D0 (en) 2001-11-20 2001-11-20 Ericsson Telefon Ab L M Method in a cellular radio communication network
US20050079853A1 (en) 2001-11-21 2005-04-14 Tuija Hurtta Broadcasting information about eligible network operators to mobile user equipments
US20030100307A1 (en) 2001-11-27 2003-05-29 Intel Corporation Automatic service handoff method and apparatus
US20030114158A1 (en) 2001-12-18 2003-06-19 Lauri Soderbacka Intersystem handover of a mobile terminal
MXPA04006068A (en) 2001-12-19 2004-09-27 Thomson Licensing Sa Method and apparatus for handing off a mobile terminal between a mobile network and a wireless lan.
US20030118015A1 (en) 2001-12-20 2003-06-26 Magnus Gunnarsson Location based notification of wlan availability via wireless communication network
US7266130B2 (en) 2001-12-28 2007-09-04 Samsung Electronics Co., Ltd. Apparatus and method for multiplexing multiple end-to-end transmission links in a communication system
US7849173B1 (en) 2001-12-31 2010-12-07 Christopher Uhlik System for on-demand access to local area networks
US7200112B2 (en) 2002-01-02 2007-04-03 Winphoria Networks, Inc. Method, system, and apparatus for a mobile station to sense and select a wireless local area network (WLAN) or a wide area mobile wireless network (WWAN)
US7149521B2 (en) 2002-01-02 2006-12-12 Winphoria Networks, Inc. Method, system and apparatus for providing mobility management of a mobile station in WLAN and WWAN environments
US6961561B2 (en) 2002-01-16 2005-11-01 International Business Machines Corporation Enhancing/limiting use of mobile electronic devices
US6963745B2 (en) 2002-01-23 2005-11-08 Samsung Electronics Co., Ltd. Method for performing inter system handovers in mobile telecommunication system
KR100943584B1 (en) * 2002-01-23 2010-02-23 삼성전자주식회사 Method for performing handover between systems in mobile telecommunication system
US7508799B2 (en) 2002-01-29 2009-03-24 Arch Wireless Operating Company, Inc. Managing wireless network data
JP2003224874A (en) 2002-01-29 2003-08-08 Fujitsu Ltd Router and mobile communication terminal in mobile communication network
JP2003299146A (en) 2002-02-01 2003-10-17 Canon Inc Radio communication equipment
US6934544B2 (en) 2002-02-04 2005-08-23 Qualcomm Incorporated Method and apparatus for configurable selection and acquisition of a wireless communications system
US7236475B2 (en) 2002-02-06 2007-06-26 Ntt Docomo, Inc. Using subnet relations to conserve power in a wireless communication device
US7366524B2 (en) 2002-02-06 2008-04-29 Ntt Docomo Inc. Using subnet relations for paging, authentication, association and to activate network interfaces in heterogeneous access networks
US20030163558A1 (en) 2002-02-25 2003-08-28 Docomo Communications Laboratories Usa, Inc. System and method for Hyper Operator controlled network probing across overlaid heterogeneous access networks
JP4161028B2 (en) 2002-03-06 2008-10-08 株式会社日立国際電気 Multi-service wireless communication system
JP4080224B2 (en) 2002-03-11 2008-04-23 三菱電機株式会社 MOBILE COMMUNICATION DEVICE, COMMUNICATION DEVICE MANAGEMENT DEVICE, MOBILE COMMUNICATION NETWORK / SHORT-RANGE RADIO COOPERATION SYSTEM, MOBILE COMMUNICATION DEVICE COMMUNICATION METHOD, COMMUNICATION DEVICE MANAGEMENT METHOD, MOBILE COMMUNICATION NETWORK / NEAR-RANGE RADIO LINKAGE METHOD, AND COMPUTER And a computer-readable recording medium recording the program to be executed by the computer
US6973309B1 (en) 2002-03-14 2005-12-06 Utstarcom, Inc. Method and system for re-direction and handoff for pre-paid mobile services in third generation networks
US7224677B2 (en) 2002-03-15 2007-05-29 Nokia Corporation Method and apparatus for alerting mobile nodes of desirable access characteristics
US6665280B2 (en) 2002-03-22 2003-12-16 Nokia Corporation Method and apparatus providing multiple temporary block flow (TBF) mapping to upper layer when operating in GSM/EDGE radio access network (GERAN) A/Gb mode
US20030208602A1 (en) 2002-04-08 2003-11-06 Cisco Technology, Inc. System and method for pushing data in an internet protocol network environment
US7161914B2 (en) 2002-04-11 2007-01-09 Ntt Docomo, Inc. Context aware application level triggering mechanism for pre-authentication, service adaptation, pre-caching and handover in a heterogeneous network environment
WO2003090013A2 (en) 2002-04-17 2003-10-30 Thomson Licensing S.A. Wireless local area network (wlan) as a public land mobile network for wlan/telecommunications system interworking
US8068833B2 (en) 2002-04-26 2011-11-29 Nokia Corporation Candidate access router discovery
US7016306B2 (en) * 2002-05-16 2006-03-21 Meshnetworks, Inc. System and method for performing multiple network routing and provisioning in overlapping wireless deployments
US7535846B2 (en) 2002-05-21 2009-05-19 Samsung Electronics Co., Ltd Method for handling inter-RAT measurement and report in a dual-mode user equipment
US7965693B2 (en) 2002-05-28 2011-06-21 Zte (Usa) Inc. Interworking mechanism between wireless wide area network and wireless local area network
US7254119B2 (en) 2002-05-28 2007-08-07 Zte San Diego, Inc. Interworking mechanism between CDMA2000 and WLAN
US7583632B2 (en) * 2002-05-28 2009-09-01 Nortel Networks Limited Efficient handoffs between cellular and wireless local area networks
FR2840499B1 (en) * 2002-05-30 2004-12-10 Cit Alcatel METHOD AND DEVICE FOR CONTROLLING ACCESS TO A LOCAL WIRELESS COMMUNICATIONS NETWORK
US7116970B2 (en) 2002-05-31 2006-10-03 Lucent Technologies Inc. Selection of networks between WLAN and 2G/3G networks based on user and provider preferences
JP2005529540A (en) 2002-06-06 2005-09-29 トムソン　ライセンシング　ソシエテ　アノニム Wireless LAN as a logical serving GPRS support node (SGSN) for interconnection between wireless LAN and mobile communication system
JP3796200B2 (en) * 2002-06-20 2006-07-12 インターナショナル・ビジネス・マシーンズ・コーポレーション Wireless communication system and switching method
AU2003303142A1 (en) 2002-06-21 2004-07-29 Thomson Licensing S.A. Multimedia content delivery through wlan coverage area
US6879574B2 (en) * 2002-06-24 2005-04-12 Nokia Corporation Mobile mesh Ad-Hoc networking
WO2004004402A1 (en) 2002-06-26 2004-01-08 Nec Corporation Message transmission/reception system and method
GB2390777B (en) 2002-06-26 2004-05-05 Motorola Inc Method system and apparatus for mobile communications
US7403773B2 (en) 2002-06-27 2008-07-22 Avaya Technology Corp. Location-based access control for wireless local area networks
US7996021B2 (en) 2002-06-28 2011-08-09 Hewlett-Packard Development Company, L.P. Location determination in a wireless communication network
US7047036B2 (en) 2002-07-02 2006-05-16 Interdigital Technology Corporation Method and apparatus for handoff between a wireless local area network (WLAN) and a universal mobile telecommunication system (UMTS)
US6829473B2 (en) 2002-07-25 2004-12-07 Utstarcom, Inc. Roaming and hand-off support for prepaid billing for wireless data networks
ATE392106T1 (en) 2002-07-31 2008-04-15 Interdigital Tech Corp RANGE BETWEEN A CELLULAR SYSTEM AND A WIRELESS LOCAL NETWORK
GB2391432A (en) 2002-07-31 2004-02-04 Hewlett Packard Co Notifying a device in communication with a first communication network of proximity to a second network
US7379738B2 (en) 2002-08-05 2008-05-27 Telefonaktiebolaget Lm Ericsson (Publ) Information service broadcast control in a wireless communication network
US6768726B2 (en) 2002-08-06 2004-07-27 Motorola, Inc. Method and apparatus for effecting a seamless handoff between IP connections
US6725044B2 (en) 2002-08-15 2004-04-20 Thomson Licensing S.A. Technique seamless handoff of a mobile terminal user from a wireless telephony network to a wireless LAN
BR0215841A (en) 2002-08-16 2005-06-21 Togewa Holding Ag Process and system for gsm authentication with roaming wireless LANs
US20040105434A1 (en) 2002-08-19 2004-06-03 Allan Baw EtherCell
KR100459765B1 (en) 2002-08-30 2004-12-03 에스케이 텔레콤주식회사 A System Selection and Data Transmission Method For WLAN and Mobile Interworking Service
US8086245B2 (en) 2002-09-12 2011-12-27 Broadcom Corporation Advertising and controlling the advertisement of wireless hot spots
US7212806B2 (en) 2002-09-12 2007-05-01 Broadcom Corporation Location-based transaction authentication of wireless terminal
AU2003273340A1 (en) 2002-09-18 2004-04-08 Flarion Technologies, Inc. Methods and apparatus for using a care of address option
US20040203873A1 (en) 2002-09-19 2004-10-14 William H. Gray Method and system of informing WAN user of nearby WLAN access point
US6950655B2 (en) 2002-10-01 2005-09-27 Interdigital Technology Corporation Method and system wherein handover information is broadcast in wireless local area networks
US7221929B2 (en) * 2002-10-12 2007-05-22 Lg Electronics Inc. Handling charging information in interworking structure of mobile communication and wireless local area networks
EP1411740B1 (en) 2002-10-17 2006-05-03 Motorola, Inc. A method and apparatus for handing over a subscriber unit between cellular communication systems
US20070208864A1 (en) 2002-10-21 2007-09-06 Flynn Lori A Mobility access gateway
US7280505B2 (en) 2002-11-13 2007-10-09 Nokia Corporation Method and apparatus for performing inter-technology handoff from WLAN to cellular network
US7082305B2 (en) 2002-11-22 2006-07-25 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for generating a neighbor cell list
GB2396080B (en) 2002-11-26 2006-03-01 Nec Technologies Improvements in standby time for dual mode mobile communication devices
US20040103204A1 (en) 2002-11-27 2004-05-27 Docomo Communications Laboratories Usa, Inc. Method of connecting a client device with a router in a wireless communication network
JP3799323B2 (en) * 2002-11-29 2006-07-19 Ｎｅｃインフロンティア株式会社 Information terminal device and PC card
US6901498B2 (en) * 2002-12-09 2005-05-31 Sandisk Corporation Zone boundary adjustment for defects in non-volatile memories
KR20040051329A (en) 2002-12-12 2004-06-18 엘지전자 주식회사 Hand-Over Method Between Wireless Local Area Network and Mobile Telecommunication Network
JP2004201001A (en) * 2002-12-18 2004-07-15 Matsushita Electric Ind Co Ltd Mobile communication system and mobile communication control method
CN100464516C (en) 2002-12-23 2009-02-25 联想(北京)有限公司 Self-adaption network choosing method
US7092743B2 (en) 2002-12-26 2006-08-15 Intel Corporation Method and apparatus to reply to call
SE527628C2 (en) 2003-01-17 2006-04-25 Smarttrust Ab Method for a mobile station to select the most advantageous network when roaming
RU2232544C1 (en) 2003-02-17 2004-07-20 Сибирский государственный медицинский университет Method for differentiated evaluating the degree of state severity in case of perinatal lesion of central nervous system in early aged children
US8331907B2 (en) 2003-02-18 2012-12-11 Roamware, Inc. Integrating GSM and WiFi service in mobile communication devices
US20040165563A1 (en) * 2003-02-24 2004-08-26 Hsu Raymond T. Wireless local access network system detection and selection
US7146130B2 (en) 2003-02-24 2006-12-05 Qualcomm Incorporated Wireless local access network system detection and selection
US7590708B2 (en) * 2003-02-24 2009-09-15 Qualcomm, Incorporated Wireless local access network system detection and selection
US20040185845A1 (en) 2003-02-28 2004-09-23 Microsoft Corporation Access point to access point range extension
US7142876B2 (en) 2003-03-03 2006-11-28 Nokia Corporation Location dependent services
JP2004304399A (en) 2003-03-31 2004-10-28 Nec Corp Communication terminal, base station, server, network system, and handover method
WO2004089021A2 (en) 2003-04-01 2004-10-14 Iceberg Intellectual Property Limited Portable digital devices
DE10316063A1 (en) 2003-04-08 2004-10-28 O2 (Germany) Gmbh & Co. Ohg Communication system for mobile radio with at least one subscriber area located in an overall area
JP2004320473A (en) 2003-04-16 2004-11-11 Sharp Corp Portable terminal
US7436843B2 (en) 2003-04-30 2008-10-14 Telefonaktiebolaget Lm Ericsson (Publ) Method for access selection
US7599379B2 (en) * 2003-04-30 2009-10-06 Hewlett-Packard Development Company, L.P. Registering stations between protocols
CN1549634A (en) 2003-05-09 2004-11-24 �ʼҷ����ֵ��ӹɷ����޹�˾ System and method for seamless roaming between radio wide area net and radio local area net
JP2004349976A (en) 2003-05-21 2004-12-09 Mitsubishi Electric Corp Radio communication system, radio resource managing device, and radio communication terminal
FI20030967A (en) * 2003-06-27 2004-12-28 Nokia Corp Selection of connection settings
US20040264410A1 (en) * 2003-06-30 2004-12-30 Motorola, Inc. Method and apparatus for providing a communication unit with a handoff between networks
US7266101B2 (en) 2003-06-30 2007-09-04 Motorola, Inc. Fast handover through proactive registration
US20050025164A1 (en) 2003-07-16 2005-02-03 Telefonaktiebolaget L M Ericsson (Publ) Seamless hand-off of mobile node to a wireless local area network (WLAN)
DE60317243T2 (en) 2003-08-01 2008-08-07 Ntt Docomo Inc. SPREAD BETWEEN DOMAINS
TWI260867B (en) 2003-08-25 2006-08-21 Nokia Corp Parameter recoding method
JP4310150B2 (en) 2003-08-29 2009-08-05 京セラ株式会社 Mobile communication terminal and wireless communication system
US7155225B2 (en) 2003-08-29 2006-12-26 Motorola, Inc. Method and apparatus in a wireless communication system for facilitating a handoff
AU2003271605A1 (en) 2003-09-12 2005-04-06 Docomo Communications Laboratories Europe Gmbh Selection of a target network for a seamless handover from a plurality of wireless networks
US20050059410A1 (en) 2003-09-17 2005-03-17 Nokia Corporation System and method for providing differential location services
US7647055B2 (en) 2003-09-19 2010-01-12 Qualcomm Incorporated System and method for integration of wireless computer network in position determining technology
FI20031409A0 (en) 2003-09-30 2003-09-30 Nokia Corp Sharing of processing in a radio network
JP4185853B2 (en) 2003-11-28 2008-11-26 株式会社日立コミュニケーションテクノロジー Wireless system, server, and mobile station
JP4504379B2 (en) 2003-10-24 2010-07-14 クゥアルコム・インコーポレイテッド Handoff between wireless local area network and cellular communication system
US7263229B2 (en) * 2003-10-30 2007-08-28 Samsung Electronics Co., Ltd. Method and apparatus for detecting the location and luminance transition range of slant image edges
JP2007520917A (en) 2003-11-12 2007-07-26 インターデイジタル テクノロジー コーポレーション System for application server autonomous access across different types of access technology networks
EP1531645A1 (en) 2003-11-12 2005-05-18 Matsushita Electric Industrial Co., Ltd. Context transfer in a communication network comprising plural heterogeneous access networks
TWI249360B (en) 2003-11-13 2006-02-11 Interdigital Tech Corp Method and system for facilitating inter-system handover
US20050107093A1 (en) 2003-11-13 2005-05-19 Interdigital Technology Corporation Extraneous control of mobile telephone
US20050107100A1 (en) 2003-11-14 2005-05-19 Patrik Gustafsson Method of modifying parameters of user terminal, radio system and user terminal
KR100602166B1 (en) 2003-12-03 2006-07-19 이노에이스(주) Dual-mode mobile and method for controlling hand-off in the dual-mode mobile
US8023941B2 (en) 2003-12-17 2011-09-20 Interdigital Technology Corporation Method and apparatus for independent and efficient delivery of services to wireless devices capable of supporting multiple radio interfaces and network infrastructure
US7400886B2 (en) 2004-01-09 2008-07-15 Siemens Communications, Inc. Call hand-over in a wireless local area network
US8554876B2 (en) 2004-01-23 2013-10-08 Hewlett-Packard Development Company, L.P. User profile service
US7657234B2 (en) * 2004-02-05 2010-02-02 Qualcomm Incorporated Transparent broadcast services for a multi-mode wireless device
US7194273B2 (en) * 2004-02-12 2007-03-20 Lucent Technologies Inc. Location based service restrictions for mobile applications
FI116264B (en) 2004-02-18 2005-10-14 Teliasonera Finland Oyj Enhanced inter-system handoff in a communications system
US7567806B2 (en) * 2004-02-27 2009-07-28 Nokia Corporation Method and system to improve handover between mobile video networks and cells
US20050202791A1 (en) * 2004-03-10 2005-09-15 Krause David J. Operating mode extensions in wireless communications networks
US20050202828A1 (en) 2004-03-12 2005-09-15 Pecen Mark E. System and method for determining availability of radio access technology associated with a wireless network
KR101300454B1 (en) 2004-03-12 2013-08-27 인터디지탈 테크날러지 코포레이션 Method and system for switching a radio access technology between wireless communication systems with a multi-mode wireless transmit/receive unit
US7970399B2 (en) 2004-03-17 2011-06-28 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for improved inter-RAT handover
CN100442879C (en) 2004-03-29 2008-12-10 Ut斯达康通讯有限公司 Method of regulating resource and guiding service in the multi-mode radio network
JP2005295332A (en) 2004-04-01 2005-10-20 Mitsubishi Electric Corp Communication system, user management apparatus and mobile terminal unit
US7239620B2 (en) 2004-04-26 2007-07-03 Motorola, Inc. System and method for facilitating network-to-network transitions
US7283507B2 (en) 2004-05-06 2007-10-16 Research In Motion Limited Apparatus, and associated method, for facilitating WLAN selection by a mobile node
EP1753253A4 (en) 2004-05-21 2009-12-02 Mitsubishi Electric Corp Third-generation mobile communication/radio lan integration system, and third-generation mobile communication/radio lan integration method
US7417970B2 (en) 2004-06-02 2008-08-26 Interdigital Technology Corporation Configuring an interworking wireless local area network user equipment to access a 3GPP system
KR101351270B1 (en) 2004-06-07 2014-01-14 애플 인크. Handoffs and handoff selection in a wireless access network
KR100891110B1 (en) 2004-06-28 2009-03-30 삼성전자주식회사 Method and apparatus for performing handover
US7760704B2 (en) 2004-06-29 2010-07-20 Interdigital Technology Corporation System and method for call routing and paging across different types of networks
US7809381B2 (en) 2004-07-16 2010-10-05 Bridgeport Networks, Inc. Presence detection for cellular and internet protocol telephony
US7984149B1 (en) 2004-08-04 2011-07-19 Cisco Technology, Inc. Method and apparatus for identifying a policy server
US20070270572A1 (en) 2004-09-09 2007-11-22 National Universitynof Singapore Conformational Switches in Toxin Folding and Uses Thereof
US8233450B2 (en) * 2004-09-10 2012-07-31 Interdigital Technology Corporation Wireless communication methods and components for facilitating multiple network type compatibility
US7590732B2 (en) 2004-10-08 2009-09-15 Telefonaktiebolaget Lm Ericsson (Publ) Enhancement of AAA routing originated from a local access network involving intermediary network preferences
US7292592B2 (en) 2004-10-08 2007-11-06 Telefonaktiebolaget Lm Ericsson (Publ) Home network-assisted selection of intermediary network for a roaming mobile terminal
US20060105766A1 (en) 2004-10-26 2006-05-18 Azada Maria R Method for delivering a call to a dual-mode mobile unit using a single number
EP1875763B1 (en) 2005-04-29 2010-11-24 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Internetworking of cellular radio networks and wireless data networks
US20060276190A1 (en) 2005-05-19 2006-12-07 Interdigital Technology Corporation Method and apparatus for implementing a handoff between radio access networks deployed under different radio access technologies
US7657262B2 (en) 2005-05-24 2010-02-02 Cisco Technology, Inc. System and method for providing enhanced handover performance
US20060293053A1 (en) 2005-06-27 2006-12-28 Zanaty Farouk M Silent wireless communication system and method
US8553643B2 (en) 2005-07-19 2013-10-08 Qualcomm Incorporated Inter-system handover using legacy interface
US7873384B2 (en) * 2005-09-01 2011-01-18 Broadcom Corporation Multimode mobile communication device with configuration update capability
US20070224988A1 (en) 2006-03-24 2007-09-27 Interdigital Technology Corporation Method and apparatus for performing a handover procedure between a 3gpp lte network and an alternative wireless network
JP2011120511A (en) 2009-12-09 2011-06-23 Ta Kk Apparatus for producing wrapped food

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2322051A (en) 1994-04-28 1998-08-12 Motorola Inc Inter-system handover in a multisystem mobile radio environment
WO2000060895A1 (en) 1999-04-06 2000-10-12 Telefonaktiebolaget Lm Ericsson (Publ) Generic inter-system handover mechanism

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JASEEMUDDIN M: "An architecture for integrating UMTS and 802.11 WLAN networks", COMPUTERS AND COMMUNICATION, 2003
PROCEEDINGS. EIGHTH IEEE INTERNATIONAL SYMPOSIUM ON, 30 June 2003 (2003-06-30), pages 716 - 723

Cited By (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9237503B2 (en) 2002-07-02 2016-01-12 Interdigital Technology Corporation Method and apparatus for handoff between a wireless local area network (WLAN) and a universal mobile telecommunication system (UMTS)
US10045271B2 (en) 2003-11-13 2018-08-07 Interdigital Technology Corporation Method and system for facilitating inter-system handover for wireless communication
US10165478B2 (en) 2004-03-12 2018-12-25 Interdigital Technology Corporation Method and system for switching a radio access technology between wireless communication systems with a multi-mode wireless transmit/receive unit
US9380501B2 (en) 2004-03-12 2016-06-28 InterDigital Technology Corporation, Inc. Method and system for switching a radio access technology between wireless communication systems with a multi-mode wireless transmit/receive unit
EP1964417A2 (en) * 2005-12-21 2008-09-03 Cisco Technology, Inc. System and method for integrated wifi/wimax neighbor ap discovery and ap advertisement
US8848669B2 (en) 2005-12-21 2014-09-30 Cisco Technology, Inc. System and method for integrated WiFi/WiMax neighbor AP discovery and AP advertisement
EP1964417A4 (en) * 2005-12-21 2013-04-24 Cisco Tech Inc System and method for integrated wifi/wimax neighbor ap discovery and ap advertisement
US9369538B2 (en) 2006-01-13 2016-06-14 Nokia Technologies Oy Roaming queries prior to association/authentication
JP2009520433A (en) * 2006-01-13 2009-05-21 ノキア コーポレイション Terminal, access point, and method for query roaming prior to association / authentication
US8730926B2 (en) 2006-03-09 2014-05-20 Qualcomm Incorporated System and method for multi-network coverage
US9549434B2 (en) 2006-03-09 2017-01-17 Qualcomm Incorporated System and method for multi-network coverage
US9345063B2 (en) 2006-03-09 2016-05-17 Qualcomm Incorporated System and method for multi-network coverage
JP2012010379A (en) * 2006-03-09 2012-01-12 Qualcomm Inc System and method for multinetwork coverage
JP2009531972A (en) * 2006-03-24 2009-09-03 インターデイジタル テクノロジー コーポレーション Method and apparatus for performing a handover procedure between a 3GPP LTE network and an alternative radio network
JP2012010352A (en) * 2006-03-24 2012-01-12 Interdigital Technol Corp Method and apparatus for execution of handover procedures between 3gpplte network and alternative wireless network
JP2014135748A (en) * 2006-03-24 2014-07-24 Interdigital Technology Corp Method and apparatus for execution of handover procedures between 3gpplte network and alternative wireless network
JP2014116970A (en) * 2006-03-24 2014-06-26 Interdigital Technology Corp Method and apparatus for execution of handover procedures between 3gpplte network and alternative wireless network
EP1915015A3 (en) * 2006-10-20 2010-07-28 Samsung Electronics Co., Ltd. Apparatus and method for vertical handover in broadband wireless communication system
EP1915015A2 (en) * 2006-10-20 2008-04-23 Samsung Electronics Co., Ltd. Apparatus and method for vertical handover in broadband wireless communication system
US8059600B2 (en) 2006-11-20 2011-11-15 Samsung Electronics Co., Ltd. Method and apparatus for transmitting and receiving signal in a communication system
KR100965712B1 (en) 2006-11-20 2010-06-24 삼성전자주식회사 Method and apparatus for transmitting and receiving signal in a communication system
WO2008071066A1 (en) * 2006-12-15 2008-06-19 Huawei Technologies Co., Ltd. Processing method and system for realizing the configuring of network element in multi-standard communication system
WO2008097626A1 (en) * 2007-02-08 2008-08-14 Interdigital Technology Corporation Method and apparatus for reporting 3gpp and non-3gpp interworking capabilities of a multimode wtru
US9826443B2 (en) 2007-02-12 2017-11-21 Interdigital Technology Corporation Method and apparatus for supporting handover from LTE/EUTRAN to GPRS/GERAN
US9036599B2 (en) 2008-05-11 2015-05-19 Qualcomm Incorporated Systems and methods for multimode wireless communication handoff
US8699450B2 (en) 2008-05-11 2014-04-15 Qualcomm Incorporated Systems and methods for multimode wireless communication handoff
US8291625B2 (en) 2008-07-04 2012-10-23 Lg Electronics Inc. Method for transmitting information for inter-radio access technology handover
WO2010022256A3 (en) * 2008-08-20 2010-04-15 Qualcomm Incorporated Methods and apparatus for switching between a base channel and a 60 ghz channel
US8274903B2 (en) 2008-08-20 2012-09-25 Qualcomm Incorporated Methods and apparatus for switching between a base channel and a 60 GHz channel
US9100887B2 (en) 2008-08-20 2015-08-04 Qualcomm Incorporated Methods and apparatus for switching between a base channel and a 60 GHz channel
WO2010093968A1 (en) * 2009-02-13 2010-08-19 Qualcomm Incorporated Methods and systems for selecting a handover base station in mobile wimax
US8798624B2 (en) 2009-06-10 2014-08-05 Apple Inc. Providing an indicator of presence of a first access network that is capable of interworking with a second access network
US11451952B2 (en) 2009-06-10 2022-09-20 Apple Inc. Providing an indicator of presence of a first access network that is capable of interworking with a second access network
EP2441295A4 (en) * 2009-06-10 2015-08-19 Apple Inc Providing an indicator of presence of a first access network that is capable of interworking with a second access network
US9191807B2 (en) 2009-06-10 2015-11-17 Apple Inc. Providing an indicator of presence of a first access network that is capable of interworking with a second access network
CN102474778A (en) * 2009-08-12 2012-05-23 高通股份有限公司 Systems and methods of advertising handoff
WO2011019976A1 (en) * 2009-08-12 2011-02-17 Qualcomm Incorporated Systems and methods of advertising handoff
US8923244B2 (en) 2009-08-12 2014-12-30 Qualcomm Incorporated Systems and methods of advertising handoff
US8639243B2 (en) 2009-08-21 2014-01-28 Qualcomm Incorporated Systems, methods and apparatus configured to manage neighbor cell lists
US9609555B2 (en) 2009-08-21 2017-03-28 Qualcomm Incorporated Systems, methods and apparatus configured to manage neighbor cell lists
US8594163B2 (en) 2009-11-05 2013-11-26 Fujitsu Limited Mobile terminal, method of controlling mobile terminal and control apparatus
US8914867B2 (en) 2010-02-12 2014-12-16 Notava Oy Method and apparatus for redirecting data traffic
WO2011116022A1 (en) * 2010-03-16 2011-09-22 Qualcomm Incorporated Methods and apparatus for establishing reciprocal inter-radio access technology neighbor relations
US9241293B2 (en) 2010-11-16 2016-01-19 Apple Inc. Cell reselection using access point information
WO2012068026A1 (en) * 2010-11-16 2012-05-24 Apple Inc. Cell reselection using access point information
US9980195B2 (en) 2010-11-16 2018-05-22 Apple Inc. Cell reselection based on information collected from a plurality of mobile devices
US9277468B2 (en) 2011-03-25 2016-03-01 Qualcomm Incorporated Maintaining neighbor cell list
US9113368B2 (en) 2011-03-25 2015-08-18 Qualcomm Incorporated Maintaining neighbor cell list
WO2014029075A1 (en) 2012-08-21 2014-02-27 Nokia Corporation Method and apparatus for wireless communication in a heterogenous network
EP2888907A4 (en) * 2012-08-21 2016-06-01 Nokia Technologies Oy Method and apparatus for wireless communication in a heterogenous network
EP2938127A4 (en) * 2012-12-19 2016-08-24 Lg Electronics Inc Method for communicating in wireless communication system supporting multiple access network and apparatus supporting same
US9826451B2 (en) 2012-12-19 2017-11-21 Lg Electronics Inc. Method for communicating in wireless communication system supporting multiple access network and apparatus supporting same
RU2621072C2 (en) * 2012-12-19 2017-05-31 ЭлДжи ЭЛЕКТРОНИКС ИНК. Method of providing communication in wireless system, which supports multiple access network and supporting this device
US10123246B2 (en) 2012-12-19 2018-11-06 Lg Electronics Inc. Method for communicating in wireless communication system supporting multiple access network and apparatus supporting same
US9955403B2 (en) 2012-12-20 2018-04-24 Lg Electronics Inc. Method for communicating in wireless communication system supporting multiple access network and apparatus supporting same
EP3069557A4 (en) * 2013-11-11 2016-11-09 Ericsson Telefon Ab L M Controlling the operation of mobile terminals with respect to multiple radio access technologies
EP3509356A1 (en) * 2013-11-11 2019-07-10 Telefonaktiebolaget LM Ericsson (publ) Controlling the operation of mobile terminals with respect to multiple radio access technologies
EP3767999A1 (en) 2013-11-11 2021-01-20 Telefonaktiebolaget LM Ericsson (publ) Controlling the operation of mobile terminals with respect to multiple radio access technologies
US11026135B2 (en) 2013-11-11 2021-06-01 Telefonaktiebolaget Lm Ericsson (Publ) Controlling the operation of mobile terminals with respect to multiple radio access technologies
WO2015069173A1 (en) 2013-11-11 2015-05-14 Telefonaktiebolaget L M Ericsson (Publ) Controlling the operation of mobile terminals with respect to multiple radio access technologies
US10136306B2 (en) 2014-05-29 2018-11-20 Apple Inc. Device-type specific preferred PLMN list
US9668203B2 (en) 2014-05-29 2017-05-30 Apple Inc. Device-type specific preferred PLMN list
WO2020085824A1 (en) * 2018-10-24 2020-04-30 엘지전자 주식회사 Method and device for controlling multiple links in wireless lan system supporting multiple links
US11804923B2 (en) 2018-10-24 2023-10-31 Lg Electronics Inc. Method and device for controlling multiple links in wireless LAN system supporting multiple links

Also Published As

Publication number Publication date
ES2329055T3 (en) 2009-11-20
US7924785B2 (en) 2011-04-12
CN102685825B (en) 2016-01-20
HK1176208A1 (en) 2013-07-19
KR100888994B1 (en) 2009-03-17
CN1934880A (en) 2007-03-21
EP1723814A2 (en) 2006-11-22
TWI433564B (en) 2014-04-01
WO2005089249A3 (en) 2006-09-08
DK1723814T3 (en) 2009-11-09
KR20070053312A (en) 2007-05-23
TW201448637A (en) 2014-12-16
CN102655663A (en) 2012-09-05
US20160309368A1 (en) 2016-10-20
JP4642069B2 (en) 2011-03-02
CN1934880B (en) 2012-07-18
KR20070012670A (en) 2007-01-26
KR20120093412A (en) 2012-08-22
EP1723814B1 (en) 2009-07-22
CN102655663B (en) 2016-01-20
CN102685825A (en) 2012-09-19
NO20064569L (en) 2006-11-28
TWI542232B (en) 2016-07-11
DE602005015556D1 (en) 2009-09-03
JP2007529920A (en) 2007-10-25
EP2091285A1 (en) 2009-08-19
US10165478B2 (en) 2018-12-25
KR101150553B1 (en) 2012-05-31
TWI272029B (en) 2007-01-21
US9380501B2 (en) 2016-06-28
KR101300454B1 (en) 2013-08-27
TW200633557A (en) 2006-09-16
KR20100065388A (en) 2010-06-16
CA2559268A1 (en) 2005-09-29
ATE437545T1 (en) 2009-08-15
TW200944012A (en) 2009-10-16
TWI468049B (en) 2015-01-01
EP1723814A4 (en) 2007-03-14
TW200537961A (en) 2005-11-16
US20110182270A1 (en) 2011-07-28
MXPA06010238A (en) 2007-01-10
KR20130028788A (en) 2013-03-19
US20050202823A1 (en) 2005-09-15

Similar Documents

Publication Publication Date Title
US10165478B2 (en) Method and system for switching a radio access technology between wireless communication systems with a multi-mode wireless transmit/receive unit
AU2006206617B2 (en) Method and system for system discovery and user selection
KR101010296B1 (en) System and method for supporting gan service request capability in a wireless user equipment (ue) device
US8140112B2 (en) Method and apparatus for handoff between a wireless local area network (WLAN) and a universal mobile telecommunication system (UMTS)
US20150024755A1 (en) Method and apparatus for implementing a handoff between radio access networks deployed under different radio access technologies
IL179007A (en) Supporting emergency calls on a wireless local area network
US20060098610A1 (en) Method for providing a mobile station with seamless coverage in a 2G/3G communication network and a WLAN
EP2259623A1 (en) Method and apparatus for handover of a wireless transmit/receive unit between a cellular access network and a wlan
KR200414711Y1 (en) Apparatus for system discovery and user selection

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: PA/a/2006/010238

Country of ref document: MX

WWE Wipo information: entry into national phase

Ref document number: 2559268

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 200580007899.9

Country of ref document: CN

Ref document number: 2007503083

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

WWE Wipo information: entry into national phase

Ref document number: 2005725469

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 1020067021187

Country of ref document: KR

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
WWP Wipo information: published in national office

Ref document number: 2005725469

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1020067021187

Country of ref document: KR