CA2559268A1 - 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 PDFInfo
- Publication number
- CA2559268A1 CA2559268A1 CA002559268A CA2559268A CA2559268A1 CA 2559268 A1 CA2559268 A1 CA 2559268A1 CA 002559268 A CA002559268 A CA 002559268A CA 2559268 A CA2559268 A CA 2559268A CA 2559268 A1 CA2559268 A1 CA 2559268A1
- Authority
- CA
- Canada
- Prior art keywords
- wireless communication
- communication system
- wtru
- inter
- working
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000005516 engineering process Methods 0.000 title claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 113
- 238000005259 measurement Methods 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 4
- 230000000977 initiatory effect Effects 0.000 claims 4
- 241000700159 Rattus Species 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 6
- 238000000060 site-specific infrared dichroism spectroscopy Methods 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 3
- 230000011664 signaling Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
-
- 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
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.
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/R,ECEIVE UNIT
ACCESS TECHNOLOGY BETWEEN WIRELESS
COMMUNICATION SYSTEMS WITH A
MULTI-MODE WIRELESS TRANSMIT/R,ECEIVE 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 transmitlreceive 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 identifier s (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.
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.
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.
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 _2_ 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
[001?] 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 UTR,AN 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 T-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 _5_ with infoxnnation 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 andlor 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 andlor 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 andlor 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.
_7_ Upon receipt of the request, the UTR,AN 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 UTR,AN. For example, under the current wireless conununication 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 _g_ of wireless communication system.
_g_
[001?] 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 UTR,AN 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 T-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 _5_ with infoxnnation 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 andlor 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 andlor 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 andlor 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.
_7_ Upon receipt of the request, the UTR,AN 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 UTR,AN. For example, under the current wireless conununication 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 _g_ of wireless communication system.
_g_
Claims (37)
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 inter-working 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.
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 inter-working 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.
of the inter-working wireless communication system.
5. The method of claim 4 wherein the information regarding the inter-working 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.
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 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 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 inter-working 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.
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 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 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 inter-working 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 inter-working 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.
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.
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 through the inter-working wireless communication system.
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 through the inter-working wireless communication system.
35. The system of claim 34 wherein the information regarding an inter-working 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.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US55256104P | 2004-03-12 | 2004-03-12 | |
US60/552,561 | 2004-03-12 | ||
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 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2559268A1 true CA2559268A1 (en) | 2005-09-29 |
Family
ID=34994218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002559268A Abandoned 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 |
Country Status (15)
Country | Link |
---|---|
US (3) | US7924785B2 (en) |
EP (2) | EP2091285A1 (en) |
JP (1) | JP4642069B2 (en) |
KR (5) | KR100888994B1 (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) | TWI272029B (en) |
WO (1) | WO2005089249A2 (en) |
Families Citing this family (131)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US6542481B2 (en) | 1998-06-01 | 2003-04-01 | Tantivy Communications, Inc. | Dynamic bandwidth allocation for multiple access communication using session queues |
US7394791B2 (en) * | 1997-12-17 | 2008-07-01 | Interdigital Technology Corporation | Multi-detection of heartbeat to reduce error probability |
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 |
US9525923B2 (en) | 1997-12-17 | 2016-12-20 | Intel Corporation | Multi-detection of heartbeat to reduce error probability |
US8134980B2 (en) | 1998-06-01 | 2012-03-13 | Ipr Licensing, Inc. | Transmittal of heartbeat signal at a lower level than heartbeat request |
AU3673001A (en) | 2000-02-07 | 2001-08-14 | Tantivy Communications, Inc. | Minimal maintenance link to support synchronization |
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 |
ES2614202T3 (en) | 2001-06-13 | 2017-05-30 | Intel Corporation | Method and apparatus for transmitting a heartbeat signal at a lower level than the request for heartbeat |
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) |
TWI249360B (en) | 2003-11-13 | 2006-02-11 | Interdigital Tech Corp | Method and system for facilitating inter-system handover |
DK1723814T3 (en) | 2004-03-12 | 2009-11-09 | Interdigital Tech Corp | Method of switching a radio switching technology between wireless communication systems with a multimode wireless transmitting / receiving device |
US9031568B2 (en) * | 2004-07-28 | 2015-05-12 | Broadcom Corporation | Quality-of-service (QoS)-based association with a new network using background network scanning |
EP1935118A4 (en) * | 2005-09-22 | 2012-06-27 | 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 |
TW200719653A (en) | 2005-11-04 | 2007-05-16 | 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 |
US8374122B2 (en) * | 2005-12-21 | 2013-02-12 | Cisco Technology, Inc. | System and method for integrated WiFi/WiMax neighbor AP discovery and AP advertisement |
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 |
US9369538B2 (en) | 2006-01-13 | 2016-06-14 | Nokia Technologies Oy | Roaming queries prior to association/authentication |
JP2009525699A (en) | 2006-02-03 | 2009-07-09 | 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 system for supporting multiple hybrid automatic repeat request processes per transmission time interval |
US9549434B2 (en) * | 2006-03-09 | 2017-01-17 | Qualcomm Incorporated | System and method for multi-network coverage |
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 |
KR100924942B1 (en) * | 2006-10-20 | 2009-11-05 | 삼성전자주식회사 | Apparatus and method for vertical handover in broadband wireless communacation system |
KR100965712B1 (en) | 2006-11-20 | 2010-06-24 | 삼성전자주식회사 | Method and apparatus for transmitting and receiving signal in a communication system |
CN101203016A (en) * | 2006-12-15 | 2008-06-18 | 华为技术有限公司 | Processing method and system for implementation of net element collocation in multi-standard communication system |
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 |
US20080192716A1 (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 |
KR20090118082A (en) | 2007-02-12 | 2009-11-17 | 인터디지탈 테크날러지 코포레이션 | Method and apparatus for supporting handover from lte/eutran to gprs/geran |
US8107954B2 (en) * | 2007-03-09 | 2012-01-31 | Research In Motion Limited | System and method for wireless network selection by multi-mode devices |
EP1968283B1 (en) * | 2007-03-09 | 2012-01-25 | Research In Motion Limited | System and method for wireless network selection by multi-mode devices |
US8626844B2 (en) | 2007-03-26 | 2014-01-07 | The Trustees Of Columbia 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 |
US20080305825A1 (en) * | 2007-06-08 | 2008-12-11 | 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 |
US8265551B2 (en) | 2007-07-19 | 2012-09-11 | Panasonic Corporation | 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 |
US20090137228A1 (en) * | 2007-11-16 | 2009-05-28 | Qualcomm Incorporated | Utilizing restriction codes in wireless access point connection attempts |
US8902867B2 (en) * | 2007-11-16 | 2014-12-02 | Qualcomm Incorporated | Favoring access points in wireless communications |
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 |
US9036599B2 (en) | 2008-05-11 | 2015-05-19 | Qualcomm Incorporated | Systems and methods for multimode wireless communication handoff |
US20090279503A1 (en) * | 2008-05-11 | 2009-11-12 | 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 |
WO2010002229A2 (en) * | 2008-07-04 | 2010-01-07 | Lg Electronics Inc. | Method for transmitting information for inter-radio access technology handover |
US8588773B2 (en) * | 2008-08-04 | 2013-11-19 | Qualcomm Incorporated | System and method for cell search and selection in a wireless communication system |
US20100027510A1 (en) * | 2008-08-04 | 2010-02-04 | Qualcomm Incorporated | Enhanced idle handoff to support femto cells |
KR100980273B1 (en) * | 2008-08-05 | 2010-09-06 | (주)카이로넷 | A processing method of prediction based handoff of heterogeneous wireless networks |
US8274903B2 (en) * | 2008-08-20 | 2012-09-25 | Qualcomm Incorporated | Methods and apparatus for switching between a base channel and a 60 GHz channel |
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 |
US20100208700A1 (en) * | 2009-02-13 | 2010-08-19 | Qualcomm Incorporated | Methods and systems for selecting a handover base station in mobile wimax |
JP2010283513A (en) * | 2009-06-03 | 2010-12-16 | Nec Corp | Access information guidance system, access information guidance method and program |
RU2544795C9 (en) | 2009-06-10 | 2015-11-10 | Эппл Инк. | Mobile communication method (versions), mobile station and base station |
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 |
US8630667B2 (en) * | 2009-10-23 | 2014-01-14 | Apple Inc. | Methods and apparatus for paging reception in multimode wireless networks |
JP5287670B2 (en) | 2009-11-05 | 2013-09-11 | 富士通株式会社 | Mobile terminal device, communication control method, and control device |
FI20100057A0 (en) | 2010-02-12 | 2010-02-12 | Notava Oy | A method and system for creating a virtual device for redirecting data traffic |
US20110228687A1 (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 |
US8649359B2 (en) | 2010-11-19 | 2014-02-11 | Nokia Corporation | Apparatus and method for selection of a gateway of a local area network |
KR102258940B1 (en) | 2010-12-03 | 2021-06-03 | 인터디지탈 패튼 홀딩스, 인크 | 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 |
US9113368B2 (en) | 2011-03-25 | 2015-08-18 | Qualcomm Incorporated | Maintaining neighbor cell list |
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 |
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 |
US9503966B2 (en) | 2011-07-22 | 2016-11-22 | Nokia Technologies Oy | Idle mode access through assisted discovery |
KR102013540B1 (en) | 2011-07-29 | 2019-08-22 | 인터디지탈 패튼 홀딩스, 인크 | 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 |
CN104160762B (en) | 2012-03-08 | 2019-03-15 | 三星电子株式会社 | Method for controlling the service in wireless communication system |
KR102092563B1 (en) | 2012-03-19 | 2020-03-24 | 삼성전자 주식회사 | Method and aparatus for communication using wlan access point |
CN103391632A (en) * | 2012-05-08 | 2013-11-13 | 中兴通讯股份有限公司 | Network access method and device |
WO2013169161A1 (en) * | 2012-05-08 | 2013-11-14 | Telefonaktiebolaget L M Ericsson (Publ) | Radio communication system, method and arrangement for use in a radio communication system |
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 |
WO2014017872A1 (en) | 2012-07-26 | 2014-01-30 | 엘지전자 주식회사 | Method of supporting communication using two or more radio access technologies and apparatus for same |
US20150189558A1 (en) * | 2012-08-21 | 2015-07-02 | Nokia Corporation | Method and apparatus for wireless communication in a heterogenous network |
EP3836648A1 (en) | 2012-08-23 | 2021-06-16 | Interdigital Patent Holdings, Inc. | Providing physical layer resources to different serving sites |
KR101708574B1 (en) | 2012-08-23 | 2017-02-20 | 인터디지탈 패튼 홀딩스, 인크 | Operating with multiple schedulers in a wireless system |
CN103339983A (en) * | 2012-09-29 | 2013-10-02 | 华为技术有限公司 | Data transmission method, apparatus, 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 |
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 |
CN104871596B (en) * | 2012-12-19 | 2018-11-13 | Lg电子株式会社 | Support multi-access network wireless communication system in selectively the method for processing service flow and support this method equipment |
JP6047667B2 (en) * | 2012-12-20 | 2016-12-21 | エルジー エレクトロニクス インコーポレイティド | Communication method in radio communication system supporting multiple access network and apparatus supporting the same |
US9642053B2 (en) * | 2012-12-28 | 2017-05-02 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Methods, devices, and computer program products improving mobile communication |
US9226211B2 (en) | 2013-01-17 | 2015-12-29 | Intel IP Corporation | Centralized partitioning of user devices in a heterogeneous wireless 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 |
TWI552555B (en) | 2013-04-02 | 2016-10-01 | 蘋果公司 | 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 |
WO2014175919A1 (en) | 2013-04-26 | 2014-10-30 | Intel IP Corporation | Shared spectrum reassignment in a spectrum sharing context |
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 |
JPWO2015011822A1 (en) * | 2013-07-25 | 2017-03-02 | 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 |
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 |
WO2015142245A1 (en) * | 2014-03-21 | 2015-09-24 | Telefonaktiebolaget L M Ericsson (Publ) | Techniques for providing wlan identifier lists to terminal devices |
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 |
US9668203B2 (en) | 2014-05-29 | 2017-05-30 | Apple Inc. | Device-type specific preferred PLMN list |
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 |
EP3202187B1 (en) * | 2014-09-29 | 2020-03-11 | Nokia Solutions and Networks Oy | Transmission of wlan access parameters for a group of wlan ap |
WO2016076634A2 (en) * | 2014-11-13 | 2016-05-19 | 주식회사 케이티 | Method and device for transmitting/receiving data using wlan carrier |
KR101905941B1 (en) | 2014-11-13 | 2018-10-11 | 주식회사 케이티 | Methods for transmitting and receiving data using WLAN carriers and Apparatuses thereof |
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 |
JP6839370B2 (en) * | 2016-12-06 | 2021-03-10 | テレフオンアクチーボラゲット エルエム エリクソン(パブル) | Improved public information system |
CN110383937B (en) * | 2017-02-21 | 2022-11-25 | 瑞典爱立信有限公司 | Method, baseband unit, UE and medium for connecting UE with RAN |
US10341814B2 (en) | 2017-03-17 | 2019-07-02 | SCRRD, Inc. | Wireless device detection, tracking, and authentication platform and techniques |
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 |
WO2020085824A1 (en) * | 2018-10-24 | 2020-04-30 | 엘지전자 주식회사 | Method and device for controlling multiple links in wireless lan system supporting multiple links |
Family Cites Families (286)
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 |
DE69426760T2 (en) | 1993-12-27 | 2001-06-13 | Ricos Kk | Communication device for remote data charging |
GB2289191B (en) | 1994-04-28 | 1998-12-16 | Motorola Inc | Communications system |
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 |
EP0936777B1 (en) | 1998-02-13 | 2003-08-13 | Lucent Technologies Inc. | Integrated wireless telecommunication and local area network system |
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 |
US6470184B1 (en) | 1998-09-11 | 2002-10-22 | Nec Corporation | Mobile communication system in which traffics are equalized |
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 |
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 |
EP1135949B1 (en) | 1998-12-08 | 2011-04-06 | BRITISH TELECOMMUNICATIONS public limited company | Method of operating a cellular mobile telephone network having a 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 |
US7778641B1 (en) * | 1999-04-06 | 2010-08-17 | Telefonaktiebolaget L M Ericsson (Publ) | Inter-system handover—generic handover mechanism |
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 |
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 |
US7263367B1 (en) | 1999-04-28 | 2007-08-28 | Sabot Associates, Inc. | Systems and methods for setting a mode of operation of electronic devices |
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 |
JP2003515688A (en) | 1999-11-30 | 2003-05-07 | ボーディング データ エーエス | Electronic key device, system, and method for 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 |
KR20030034061A (en) | 2000-04-24 | 2003-05-01 | 네오테크노 가부시키가이샤 | 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 |
WO2002001902A1 (en) | 2000-06-29 | 2002-01-03 | 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 |
DE60131572T2 (en) * | 2001-02-06 | 2008-10-23 | Nokia Corp. | 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 |
US6647426B2 (en) | 2001-02-26 | 2003-11-11 | Kineto Wireless, Inc. | Apparatus and method for integrating an unlicensed wireless communications system and a licensed wireless communications system |
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 |
JP2004519179A (en) | 2001-03-30 | 2004-06-24 | ノキア コーポレイション | Method for supporting 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 |
DE60125721T2 (en) | 2001-05-10 | 2007-11-08 | Nortel Networks Ltd., St. Laurent | System and method for redirecting communication between mobile telecommunication networks with different radio access technologies |
US6829481B2 (en) * | 2001-05-15 | 2004-12-07 | Novatel Wireless, Inc. | Systems and methods for intelligent inter-system handoff |
WO2002093811A2 (en) | 2001-05-16 | 2002-11-21 | Adjungo Networks Ltd. | Access to plmn networks for non-plmn devices |
US6826154B2 (en) | 2001-05-24 | 2004-11-30 | 3Com Corporation | Method and apparatus for seamless mobility between different access technologies |
US7009952B1 (en) | 2001-05-24 | 2006-03-07 | 3Com Corporation | Method and apparatus for seamless mobility with layer two assistance |
US6615044B2 (en) * | 2001-06-06 | 2003-09-02 | Nokia Mobile Phones, Ltd. | Method of WCDMA coverage based handover triggering |
CA2449544A1 (en) * | 2001-06-08 | 2002-12-19 | Cytovia, Inc. | 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 |
WO2003024144A1 (en) | 2001-09-12 | 2003-03-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Location management system and a 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 |
AU2002221877A1 (en) | 2001-11-21 | 2003-06-10 | Nokia Corporation | 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 |
AU2002357129A1 (en) | 2001-12-19 | 2003-07-09 | Thomson Licensing S.A. | 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 |
KR100943584B1 (en) * | 2002-01-23 | 2010-02-23 | 삼성전자주식회사 | Method for performing handover between systems in mobile telecommunication system |
US6963745B2 (en) | 2002-01-23 | 2005-11-08 | Samsung Electronics Co., Ltd. | Method for performing inter system handovers in mobile telecommunication system |
JP2003224874A (en) | 2002-01-29 | 2003-08-08 | Fujitsu Ltd | Router and mobile communication terminal in mobile communication network |
US7508799B2 (en) | 2002-01-29 | 2009-03-24 | Arch Wireless Operating Company, Inc. | Managing wireless network data |
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 |
AU2003221923A1 (en) | 2002-04-17 | 2003-11-03 | 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 |
US7583632B2 (en) * | 2002-05-28 | 2009-09-01 | Nortel Networks Limited | Efficient handoffs between cellular and wireless local area networks |
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 |
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 |
BR0305028A (en) | 2002-06-06 | 2004-11-09 | Thomson Licensing Sa | Wlan as a software node (sgsn) for interoperation between wlan and a 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 |
CN100431359C (en) | 2002-06-21 | 2008-11-05 | 汤姆森许可贸易公司 | Method and appts. of multimedia content delivery through WLAN coverage area |
US6879574B2 (en) * | 2002-06-24 | 2005-04-12 | Nokia Corporation | Mobile mesh Ad-Hoc networking |
AU2003242266A1 (en) | 2002-06-26 | 2004-01-19 | 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 |
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 |
WO2004012468A1 (en) | 2002-07-31 | 2004-02-05 | Interdigital Technology Corporation | Handover between a cellular system and a wireless local area 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 |
WO2004017564A1 (en) | 2002-08-16 | 2004-02-26 | Togewa Holding Ag | Method and system for gsm authentication during wlan roaming |
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 |
ATE325519T1 (en) | 2002-10-17 | 2006-06-15 | Motorola Inc | METHOD AND DEVICE FOR TRANSFERRING A SUBSCRIBER TERMINAL BETWEEN CELLULAR COMMUNICATION NETWORKS |
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 |
US7146130B2 (en) | 2003-02-24 | 2006-12-05 | Qualcomm Incorporated | Wireless local access network system detection and selection |
US20040165563A1 (en) * | 2003-02-24 | 2004-08-26 | Hsu Raymond T. | 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 |
US7599379B2 (en) * | 2003-04-30 | 2009-10-06 | Hewlett-Packard Development Company, L.P. | Registering stations between protocols |
US7436843B2 (en) | 2003-04-30 | 2008-10-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for access selection |
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) |
AU2003255352A1 (en) | 2003-08-01 | 2005-02-25 | Docomo Communications Laboratories Europe Gmbh | Inter-domain handover |
TWI260867B (en) | 2003-08-25 | 2006-08-21 | Nokia Corp | Parameter recoding method |
US7155225B2 (en) | 2003-08-29 | 2006-12-26 | Motorola, Inc. | Method and apparatus in a wireless communication system for facilitating a handoff |
JP4310150B2 (en) | 2003-08-29 | 2009-08-05 | 京セラ株式会社 | Mobile communication terminal and wireless communication system |
EP1665853A1 (en) | 2003-09-12 | 2006-06-07 | NTT DoCoMo Inc. | 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 |
WO2005041612A1 (en) | 2003-10-24 | 2005-05-06 | Qualcomm Incorporated | Handoff between a wireless local area network and a 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 |
EP1531645A1 (en) | 2003-11-12 | 2005-05-18 | Matsushita Electric Industrial Co., Ltd. | Context transfer in a communication network comprising plural heterogeneous access networks |
TWI391004B (en) | 2003-11-12 | 2013-03-21 | Interdigital Tech Corp | System for application server autonomous access across diferent types of access technology networks |
US20050107093A1 (en) | 2003-11-13 | 2005-05-19 | Interdigital Technology Corporation | Extraneous control of mobile telephone |
TWI249360B (en) | 2003-11-13 | 2006-02-11 | Interdigital Tech Corp | Method and system for facilitating inter-system handover |
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 |
DK1723814T3 (en) | 2004-03-12 | 2009-11-09 | Interdigital Tech Corp | Method of switching a radio switching technology between wireless communication systems with a multimode wireless transmitting / receiving device |
WO2005089009A1 (en) | 2004-03-17 | 2005-09-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and arrangement for improved inter-rat handover |
WO2005094100A1 (en) | 2004-03-29 | 2005-10-06 | Utstarcom Telecom Co., Ltd. | A 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 |
JPWO2005115034A1 (en) | 2004-05-21 | 2008-03-27 | 三菱電機株式会社 | Third generation mobile communication / wireless LAN integration system and third generation mobile communication / wireless 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 |
KR20120060893A (en) | 2004-06-07 | 2012-06-12 | 노오텔 네트웍스 리미티드 | 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 |
JP2008507217A (en) | 2004-07-16 | 2008-03-06 | ブリッジポート ネットワークス, インコーポレイテッド | Presence detection and handoff 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 |
EP1791857A4 (en) | 2004-09-09 | 2009-04-08 | Univ 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 |
-
2005
- 2005-03-11 DK DK05725469T patent/DK1723814T3/en active
- 2005-03-11 KR KR1020067021187A patent/KR100888994B1/en not_active IP Right Cessation
- 2005-03-11 CN CN2005800078999A patent/CN1934880B/en not_active Expired - Fee Related
- 2005-03-11 EP EP09162291A patent/EP2091285A1/en not_active Withdrawn
- 2005-03-11 KR KR1020077007384A patent/KR101300454B1/en not_active IP Right Cessation
- 2005-03-11 EP EP05725469A patent/EP1723814B1/en not_active Not-in-force
- 2005-03-11 CN CN201210152361.9A patent/CN102685825B/en not_active Expired - Fee Related
- 2005-03-11 WO PCT/US2005/008315 patent/WO2005089249A2/en active Search and Examination
- 2005-03-11 AT AT05725469T patent/ATE437545T1/en not_active IP Right Cessation
- 2005-03-11 CA CA002559268A patent/CA2559268A1/en not_active Abandoned
- 2005-03-11 DE DE602005015556T patent/DE602005015556D1/en active Active
- 2005-03-11 KR KR1020127017335A patent/KR20120093412A/en active IP Right Grant
- 2005-03-11 ES ES05725469T patent/ES2329055T3/en active Active
- 2005-03-11 MX MXPA06010238A patent/MXPA06010238A/en not_active Application Discontinuation
- 2005-03-11 JP JP2007503083A patent/JP4642069B2/en not_active Expired - Fee Related
- 2005-03-11 KR KR1020107008978A patent/KR101150553B1/en not_active IP Right Cessation
- 2005-03-11 KR KR1020137002850A patent/KR20130028788A/en not_active Application Discontinuation
- 2005-03-11 US US11/077,913 patent/US7924785B2/en not_active Expired - Fee Related
- 2005-03-11 CN CN201210152339.4A patent/CN102655663B/en not_active Expired - Fee Related
- 2005-03-14 TW TW094107744A patent/TWI272029B/en not_active IP Right Cessation
- 2005-03-14 TW TW103114313A patent/TWI542232B/en not_active IP Right Cessation
- 2005-03-14 TW TW094135753A patent/TWI433564B/en not_active IP Right Cessation
- 2005-03-14 TW TW98101131A patent/TWI468049B/en not_active IP Right Cessation
-
2006
- 2006-10-10 NO NO20064569A patent/NO20064569L/en not_active Application Discontinuation
-
2007
- 2007-05-16 HK HK13102706.6A patent/HK1176208A1/en not_active IP Right Cessation
-
2011
- 2011-04-11 US US13/084,266 patent/US9380501B2/en active Active
-
2016
- 2016-06-27 US US15/193,830 patent/US10165478B2/en not_active Expired - Fee Related
Also Published As
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 | |
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 | |
KR20090115214A (en) | System and method for supporting gan service request capability in a wireless user equipment (ue) device | |
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 |
---|---|---|---|
EEER | Examination request | ||
FZDE | Discontinued |